JP7226076B2 - air outlet - Google Patents

Description

The present disclosure relates to an air blowing portion that blows air toward a blowing target.

Conventionally, in order to increase the reach of the airflow that becomes the working airflow, around the main blowing holes that form the working airflow, auxiliary blowing holes that form a support airflow that prevents the intake of the air that is drawn into the working airflow have been provided. Air nozzles are known (see, for example, Patent Document 1). The air nozzle described in Patent Document 1 is formed so that a plurality of auxiliary blow-out holes surround the main blow-out hole at equal intervals in a satellite shape on the periphery of the main blow-out hole.

JP-A-8-318176

By the way, if an attempt is made to form a plurality of auxiliary blow-out holes surrounding the main blow-out hole at equal intervals in a satellite-like manner with respect to the air blow-out portion, it is necessary to enlarge the peripheral portion of the main blow-out hole. This is not preferable because it causes an increase in the size of the air blowing portion.

An object of the present disclosure is to provide an air blowing part capable of increasing the reaching distance of an airflow blown to a blowing target while suppressing an increase in size.

The inventions according to claims 1 to 5 ,
An air blowing portion that blows air toward a blowing target,
Ducts (51, 61, 71, 81) forming blowout flow paths (510, 610, 710, 123B) through which the air blown toward the blowout target passes;
A hole forming member (52, 62, 63, 72) forming a flat hole-shaped blowout hole (520, 620, 630, 720, 730, 820) for blowing air toward a blowout target on the air flow downstream side of the duct , 73, 82) and
A pair of long edges (522, 523, 622, 623, 632, 633, 722, 723, 732, 733, 822, 823) and a pair of short edges (524) connected to both ends of a pair of long edges and facing each other with a gap larger than the gap between the pair of long edges. , 525, 624, 625, 634, 635, 724, 725, 734, 735, 824, 825), and one of the pair of long edges and the pair of short edges is provided with an object to be blown from the blow hole. Diffusion suppressing portions (53, 66, 67, 76, 77, 83) are provided to suppress diffusion of the airflow blown out to the outside.
And the invention according to claim 1,
The blow-out holes are face blow-out holes (620, 630) for blowing air upward from the seat cushion (Sc) on which the vehicle occupant sits,
The hole forming member (62) is installed such that the pair of long edges (622, 623, 632, 633) of the blowout hole extends along the vertical direction of the vehicle,
The diffusion suppressing portions (66, 67) are provided in the long edge portions (623, 633) of the pair of long edge portions that are farther from the seat cushion in the width direction of the vehicle.
In addition, the invention according to claim 2,
The blow-out holes are face blow-out holes (620, 630) for blowing air upward from the seat cushion (Sc) on which the vehicle occupant sits,
The hole forming member (62) is installed such that the pair of long edges (622, 623, 632, 633) of the blowout hole extends along the vertical direction of the vehicle,
The diffusion suppressing portions (66, 67) are provided in the long edge portions (622, 632) of the pair of long edge portions that are located at a short distance from the seat cushion in the width direction of the vehicle.
In addition, the invention according to claim 3,
The blow-out holes are foot blow-out holes (720, 730) for blowing air downward of the seat cushion (Sc) on which the vehicle occupant sits,
The hole forming member (72) is installed such that the pair of long edges (722, 723, 732, 733) extends along the longitudinal direction of the vehicle,
The diffusion suppressing portions (76, 77) are provided on the long edge portions (723, 733) of the pair of long edge portions that are farther from the seat cushion in the width direction of the vehicle.
Further, the invention according to claim 4,
The blow-out holes are foot blow-out holes (720, 730) for blowing air downward of the seat cushion (Sc) on which the vehicle occupant sits,
The hole forming member (72) is installed such that the pair of long edges (722, 723, 732, 733) extends along the longitudinal direction of the vehicle,
The diffusion suppressing portions (76, 77) are provided in the long edge portions (722, 732) of the pair of long edge portions, the distance from the seat cushion being short in the width direction of the vehicle.
In addition, the invention according to claim 5,
The blowout hole targets a confluence space (127) where hot air and cold air merge inside the air conditioning case (12) of the air conditioning unit (10), and cool air blowout holes (820) for blowing cold air toward the confluence space. and
Among the pair of long edges (822, 823), the diffusion suppressing part is the long edge (822) that is located inside the air conditioning case and is located at the shortest distance from the heating heat exchanger (16) that generates hot air. is provided in

According to this, the diffusion suppressing portion provided at the hole periphery of the blowing hole makes it difficult for the airflow blown out to the blowing target to diffuse, so that the reaching distance of the airflow blown out from the blowing hole to the blowing target can be lengthened. In particular, the diffusion suppressing portion is provided on one of a pair of long edges and a pair of short edges that constitute the hole periphery. Therefore, compared to the case where the diffusion suppressing portions are provided so as to surround the blowing holes at equal intervals in a satellite shape, it is possible to reduce the size of the air blowing portion.

Therefore, according to the air blowing section of the present disclosure, it is possible to increase the reaching distance of the airflow blown to the blowing target while suppressing an increase in size.

It should be noted that the reference numerals in parentheses attached to each component etc. indicate an example of the correspondence relationship between the component etc. and specific components etc. described in the embodiments described later.

FIG. 2 is a schematic diagram showing the interior side of the vehicle including the defroster blowout portion according to the first embodiment; FIG. 2 is a schematic cross-sectional view of an air conditioning unit including a defroster blowout section according to the first embodiment; FIG. 3 is a schematic top view showing the defroster blowout portion according to the first embodiment; FIG. 4 is a sectional view along IV-IV in FIG. 3; FIG. 2 is a schematic diagram showing the interior front of the vehicle including the defroster blowout portion according to the first embodiment. FIG. 5 is a schematic top view showing a defroster blowout portion serving as a comparative example of the first embodiment; FIG. 7 is a cross-sectional view taken along line VII-VII of FIG. 6; FIG. 4 is an explanatory diagram for explaining the flow of airflow blown out from the defroster blowout portion according to the first embodiment; FIG. 5 is a schematic diagram showing a first modified example of the defroster blowout portion according to the first embodiment; FIG. 7 is a schematic diagram showing a second modification of the defroster blowout portion according to the first embodiment; FIG. 7 is a schematic cross-sectional view showing a defroster blowout portion according to a second embodiment; FIG. 11 is a schematic top view showing the front part of the vehicle interior including the face blowing part according to the third embodiment. FIG. 12 is a schematic front view showing the interior front of the vehicle including the face blowing portion according to the third embodiment. FIG. 12 is an explanatory diagram for explaining the flow of airflow blown out from the face blowing portion according to the third embodiment; FIG. 12 is a schematic front view showing the front part of the vehicle interior including the face blowing part according to the fourth embodiment. FIG. 12 is an explanatory diagram for explaining the flow of airflow blown out from the face blowing portion according to the fourth embodiment; FIG. 12 is a schematic front view showing the interior front of the vehicle including the foot blowout portion according to the fifth embodiment; FIG. 12 is a schematic bottom view of the front part of the vehicle interior including the foot blowout part according to the fifth embodiment. FIG. 12 is an explanatory diagram for explaining the flow of airflow blown out from a foot blowing portion according to the fifth embodiment; FIG. 12 is a schematic bottom view of the front part of the vehicle interior including the foot blowout part according to the sixth embodiment. FIG. 11 is an explanatory diagram for explaining the flow of airflow blown out from a foot blowing portion according to the sixth embodiment; FIG. 11 is a schematic cross-sectional view of an air conditioning unit including a cool air blowing section according to a seventh embodiment; 23 is an enlarged view of portion XXIII of FIG. 22; FIG. 24 is a cross-sectional view taken along line XXIV-XXIV of FIG. 23; FIG. FIG. 12 is an explanatory diagram for explaining the flow of airflow blown out from a cool air blowing portion according to the seventh embodiment;

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the following embodiments, the same or equivalent parts as those described in the preceding embodiments are denoted by the same reference numerals, and description thereof may be omitted. Moreover, when only some of the components are described in the embodiments, the components described in the preceding embodiments can be applied to the other parts of the components. The following embodiments can be partially combined with each other, even if not explicitly stated, as long as there is no problem with the combination.

(First embodiment)
This embodiment will be described with reference to FIGS. 1 to 8. FIG. In this embodiment, an example in which the air blowing section of the present disclosure is applied to the defroster blowing section 50 will be described. In addition, each arrow indicating up and down, front and rear, and left and right in each drawing indicates the up and down direction DR1, the front and rear direction DR2, and the width direction DR3 in the mounted state of the vehicle.

The air conditioning unit 10 constitutes a ventilation system of a vehicle air conditioner together with a blower unit (not shown). As shown in FIG. 1, the air-conditioning unit 10 is arranged inside the instrument panel IP positioned at the forefront in the interior of the vehicle 1 . The instrument panel IP is installed in front of the seat S on which the passenger sits. The seat S has a seat cushion Sc that supports the vicinity of the buttocks of the occupant and a seat back Sb that supports the vicinity of the back of the occupant.

Although not shown, the blower unit includes an inside/outside air switching box and a blower that sucks air through the inside/outside air switching box and blows the air. The inside/outside air switching box is formed with an outside air introduction port for introducing outside air (that is, vehicle exterior air) and an inside air introduction port for introducing inside air (that is, vehicle interior air). The outside air introduction port and the inside air introduction port are opened and closed by an inside/outside air switching door.

The blower includes a centrifugal fan, a drive motor, and a scroll case. Specifically, the blower has two sets of centrifugal fans and scroll cases. The blower unit can switch the air intake mode among an outside air mode for blowing outside air, an inside air mode for blowing inside air, and an inside/outside air two-layer mode for blowing outside air and inside air separately.

As shown in FIG. 2, the air-conditioning unit 10 houses an evaporator 14 and a heater core 16 inside an air-conditioning case 12, which are means for adjusting the temperature of blown air. The air-conditioning case 12 is made of a resin (for example, polypropylene) that has a certain degree of elasticity and strength.

The air conditioning case 12 is composed of a plurality of divided cases. That is, the air-conditioning case 12 is composed of a combined body in which a plurality of divided cases are integrally connected by fastening means such as metal spring clips and screws.

Although not shown, two air inlets are formed in the side surface of the air-conditioning case 12 on the frontmost side. The two air inlets are connected to two sets of scroll cases arranged in the blower unit so that the outside air flows into the first air inlet and the inside air flows into the second air inlet during the two-layer inside/outside air mode. It is

An upper and lower partition plate 121 is formed inside the air conditioning case 12 so as to extend over the entire area in the width direction DR3. The upper and lower partition plates 121 are formed integrally with the air conditioning case 12 . An air passage formed inside the air conditioning case 12 is partitioned into a first air passage 122 and a second air passage 123 by an upper and lower partition plate 121 .

The first air passage 122 is a passage located above the upper and lower partition plates 121, and is configured to allow the air flowing in from the first air inlet to flow. The second air passage 123 is a passage located below the upper and lower partition plate 121, and is configured to allow the air that has flowed in from the second air inlet to flow. The second air passage 123 is arranged below the first air passage 122 . In the case of the inside/outside air two-layer mode, the outside air flows through the first air passage 122 and the inside air flows through the second air passage 123 .

An evaporator 14 is arranged inside the air-conditioning case 12 at a portion immediately behind the air inlet. The evaporator 14 is arranged inside the air conditioning case 12 so as to cross the first air passage 122 and the second air passage 123 respectively. Specifically, the vertical dimension of the evaporator 14 in the vertical direction DR1 is substantially the same as the vertical dimension of the air conditioning case 12 . Although not shown, the dimension of the evaporator 14 in the width direction DR3 is substantially the same as the width dimension of the air conditioning case 12 .

The evaporator 14 is a refrigerant evaporator that evaporates refrigerant in a vapor compression refrigeration cycle device. The evaporator 14 is a cooling heat exchanger that cools the air by the latent heat of evaporation of the refrigerant. The evaporator 14 is arranged so as to pass through a through hole provided in the upper and lower partition plate 121 . The evaporator 14 has an upper portion located in the first air passage 122 and a lower portion located in the second air passage 123 . Thereby, the evaporator 14 cools the air flowing through the first air passage 122 at the upper portion and cools the air flowing through the second air passage 123 at the lower portion.

A heater core 16 is arranged at a predetermined distance from the evaporator 14 downstream of the evaporator 14 in the air flow (that is, on the rear side). The heater core 16 is formed so that its vertical dimension in the vertical direction DR<b>1 is smaller than the vertical dimension of the air conditioning case 12 . Although not shown, the dimension of the heater core 16 in the width direction DR3 is substantially the same as the width dimension of the air conditioning case 12 .

The heater core 16 is a heating heat exchanger that heats the blown air that has passed through the evaporator 14 and is cooled to generate warm air. The heater core 16 heats the blown air by exchanging heat between the engine cooling water heated by the exhaust heat of the engine and the blown air.

The heater core 16 is arranged so as to pass through a through hole provided in the upper and lower partition plate 121 . The heater core 16 has an upper portion positioned inside the first air passage 122 and a lower portion positioned inside the second air passage 123 . Thereby, the heater core 16 heats the air flowing through the first air passage 122 at the upper portion and heats the air flowing through the second air passage 123 at the lower portion.

Specifically, the first air passage 122 is partitioned into an upper hot air passage 122A and an upper bypass passage 122B by an upper partition portion 124 provided in the space where the heater core 16 is arranged. The upper partition portion 124 is arranged adjacent to the upper portion of the heater core 16 . The upper partition part 124 has a concave shape so as to cover the upper part of the heater core 16 . The upper hot air passage 122</b>A is a passage for air passing over the heater core 16 . The upper bypass passage 122</b>B is formed above the heater core 16 and is a passage for flowing the cool air that has passed through the evaporator 14 while bypassing the heater core 16 .

On the other hand, the second air passage 123 is partitioned into a lower warm air passage 123A and a lower bypass passage 123B by a lower partition portion 125 provided in the space where the heater core 16 is arranged. The lower partition portion 125 is arranged adjacent to the lower portion of the heater core 16 . The lower partition part 125 has a concave shape so as to cover the lower part of the heater core 16 . The lower warm air passage 123</b>A is a flow passage for air passing under the heater core 16 . The lower bypass passage 123</b>B is formed below the heater core 16 and is a passage for flowing the cool air that has passed through the evaporator 14 while bypassing the heater core 16 .

A first air mix door 181 is arranged between the evaporator 14 and the heater core 16 in the upper part of the air conditioning case 12 . The first air mix door 181 is composed of a sliding door that slides substantially parallel to the front surface of the heater core 16 . The first air mix door 181 is slidable between a maximum heating position that blocks the upper bypass passage 122B and a maximum cooling position that blocks the upper hot air passage 122A.

The first air mix door 181 adjusts the air volume ratio between the warm air passing through the upper hot air passage 122A and the cold air passing through the upper bypass passage 122B. Then, the hot air passing through the upper hot air passage 122A and the cold air passing through the upper bypass passage 122B join in the first mixing space 126 inside the air conditioning case 12 and are mixed to reach the desired temperature. .

A second air mix door 182 is arranged between the evaporator 14 and the heater core 16 in the lower part of the air conditioning case 12 . The second air mix door 182 is composed of a sliding door that slides substantially parallel to the front surface of the heater core 16 . The second air mix door 182 is slidable between a maximum heating position that blocks the lower bypass passage 123B and a maximum cooling position that blocks the lower hot air passage 123A.

The second air mix door 182 adjusts the air volume ratio between the warm air passing through the lower hot air passage 123A and the cold air passing through the lower bypass passage 123B. Then, the hot air passing through the lower hot air passage 123A and the cold air passing through the lower bypass passage 123B join in the second mixing space 127 inside the air conditioning case 12 and are mixed to reach the desired temperature. .

The air-conditioning case 12 is formed with a plurality of blowout openings for blowing out the air flowing inside the air-conditioning case 12 into the vehicle interior. Specifically, the air conditioning case 12 is formed with a defroster opening 20 , a face opening 22 , and a foot opening 24 .

The defroster opening 20 is formed in a portion adjacent to the first mixing space 126 on the upper surface of the air conditioning case 12 . The conditioned air adjusted to a desired temperature in the first mixing space 126 flows into the defroster opening 20 . The defroster opening 20 is opened and closed by a defroster door 21, and the inflow of the conditioned air is switched by opening and closing.

A defroster blowout portion 50 that constitutes an air blowout portion of the present disclosure is connected to the defroster opening portion 20 . The defroster blowing part 50 is a blowing part that blows out the conditioned air whose temperature is adjusted by the air conditioning unit 10 toward the inside of the windshield W. The defroster blowout part 50 blows out the windshield W. The defroster blowout section 50 has a defroster duct 51 and a defroster blowout member 52 .

The defroster duct 51 is a duct that forms a blowout flow path 510 through which the air blown toward the inside of the windshield W passes. The defroster duct 51 is connected to the defroster opening 20 at its upstream end in the air flow. Further, the defroster duct 51 is connected to the defroster blowout member 52 at the downstream end of the air flow.

The defroster blowout member 52 is a hole forming member that forms a defroster blowout hole 520 that blows air toward the inside of the windshield W. As shown in FIG. The defroster blowout member 52 is connected to the downstream side of the defroster duct 51 in the air flow. The defroster blowout member 52 is fixed to the instrument panel IP by being fitted into an opening formed in the upper surface of the instrument panel IP.

The defroster blowout hole 520 targets the windshield W and opens to the instrument panel IP adjacent to the windshield W. The defroster blowout hole 520 has a flat hole shape.

As shown in FIG. 3 , the defroster blowout hole 520 is configured as an elongated blowout hole extending in the width direction DR3 of the vehicle 1 . Defroster blowout hole 520 has a dimension in width direction DR3 that is larger than a dimension in front-rear direction DR2 when viewed from the air blowing direction.

The defroster blowout member 52 has a hole peripheral portion 521 surrounding the defroster blowout hole 520 . The hole peripheral edge portion 521 is connected to a pair of long edge portions 522 and 523 extending opposite to each other, both ends of the pair of long edge portions 522 and 523, and is larger than the interval between the pair of long edge portions 522 and 523. It comprises a pair of spaced apart short edges 524 , 525 .

The defroster blowout member 52 is installed on the instrument panel IP such that the pair of long edge portions 522 and 523 of the defroster blowout hole 520 extends along the width direction DR3 of the vehicle 1 .

The hole peripheral portion 521 is provided with a diffusion suppressing portion 53 that suppresses the diffusion of the airflow blown inside the windshield W from the defroster blowout hole 520 . Specifically, the diffusion suppressing portion 53 is provided on the second long edge portion 523 of the pair of long edge portions 522 and 523, which is farther from the windshield W in the front-rear direction DR2. That is, of the pair of long edges 522 and 523, the diffusion suppressing portion 53 is provided on the first long edge 522 and the pair of short edges 524 and 525 that are closer to the windshield W in the front-rear direction DR2. do not have.

As shown in FIGS. 3 and 4 , the diffusion suppressing portion 53 includes a plurality of fine holes 531 and partitions forming a plurality of fine channels 532 that guide part of the airflow flowing through the blowout channel 510 to the plurality of fine holes 531 . It is configured including a part 533 .

The plurality of fine holes 531 are for blowing out toward the windshield W a part of the airflow flowing from the blowout passage 510 to the defroster blowout hole 520 as a jet. The plurality of fine holes 531 are holes having an opening area smaller than that of the defroster blowout hole 520 . A plurality of fine holes 531 are formed side by side at regular intervals in the second long edge portion 523 . The plurality of fine holes 531 are configured as round holes. The plurality of fine holes 531 are composed of through holes penetrating the front and back of the hole peripheral portion 521 . Note that the plurality of fine holes 531 may be arranged at different intervals.

The partition part 533 partitions the blowout channel 510 and the fine channel 532 . The plurality of fine channels 532 formed by the partitions 533 have a substantially constant channel area from the upstream side to the downstream side of the air flow.

Returning to FIG. 2 , the face opening 22 is formed at a portion of the upper surface of the air conditioning case 12 located behind the defroster opening 20 . Air-conditioned air that has been adjusted to a desired temperature in the first mixing space 126 flows into the face opening 22 . The face opening 22 is opened and closed by a face door 23, and the inflow of the conditioned air is switched by opening and closing.

A face outlet 60 is connected to the face opening 22 . The face blowing part 60 is a blowing part that blows air-conditioned air whose temperature is adjusted by the air conditioning unit 10 toward the upper side of the seat cushion Sc on which the passenger of the vehicle 1 is seated. The face blowing part 60 blows out the seat back Sb that supports the upper body of the occupant. The face blowing part 60 has a face duct 61 , a first face blowing member 62 , a second face blowing member 63 , a third face blowing member 64 and a fourth face blowing member 65 .

The face duct 61 is a duct that forms a blowout flow path 610 through which the air blowing upward of the seat cushion Sc passes. The face duct 61 is connected to the face opening 22 at its upstream end in the air flow. The face duct 61 is branched into four on the downstream side of the air flow, and the ends of the branched portions on the downstream side of the air flow are a first face blowing member 62, a second face blowing member 63, and a third face blowing member. 64, connected to the fourth face blowing member 65;

As shown in FIG. 5, the first face blow-out member 62 and the second face blow-out member 63 target the area above the right seat cushion Scd on which the driver sits. In addition, the third face blowing member 64 and the fourth face blowing member 65 target the area above the left seat cushion Scp on which the fellow passenger sits.

The first face blowing member 62 is a hole forming member that forms a center face blowing hole 620 for blowing conditioned air from the center side in the width direction DR3 of the vehicle 1 toward the upper side of the right seat cushion Scd on which the driver is seated. .

The second face blowing member 63 is a hole forming member that forms a side face blowing hole 630 for blowing conditioned air from the right side in the width direction DR3 of the vehicle 1 toward above the right seat cushion Scd on which the driver is seated.

The third face blowing member 64 is a hole forming member that forms a center face blowing hole 640 for blowing conditioned air from the center side in the width direction DR3 of the vehicle 1 toward the upper side of the left seat cushion Scp on which the fellow passenger sits. .

The fourth face blowing member 65 is a hole forming member that forms a side face blowing hole 650 for blowing conditioned air from the left side in the width direction DR3 of the vehicle 1 toward above the left seat cushion Scp on which the fellow passenger sits.

Each face blowing member 62 to 65 is fixed to the instrument panel IP by being fitted into an opening formed in the upper surface of the instrument panel IP.

Each face blowout hole 620, 630, 640, 650 opens to the instrument panel IP. Each face blowing hole 620, 630, 640, 650 has a flat hole shape. Specifically, each of the face blow-out holes 620 , 630 , 640 , 650 is configured as an elongated blow-out hole extending in the vertical direction DR<b>1 of the vehicle 1 . Each face blowing hole 620, 630, 640, 650 has a dimension in the width direction DR3 smaller than a dimension in the vertical direction DR1 when viewed from the air blowing direction.

Returning to FIG. 2 , the foot opening 24 is formed in a portion adjacent to the second mixing space 127 in the vehicle rear portion of the air conditioning case 12 . Air-conditioned air adjusted to a desired temperature in the second mixing space 127 flows into the foot opening 24 . The foot opening 24 is opened and closed by a foot door 25, and the inflow of the conditioned air is switched by opening and closing.

A foot outlet 70 is connected to the foot opening 24 . The foot blowing part 70 is a blowing part that blows air-conditioned air whose temperature is adjusted by the air conditioning unit 10 toward the lower side of the seat cushion Sc on which the passenger of the vehicle 1 sits. The foot blowout part 70 blows out the area below the seat cushion Sc that supports the lower half of the body of the occupant. The foot blowout section 70 has a foot duct 71 , a first foot blowout member 72 , a second foot blowout member 73 , a third foot blowout member 74 and a fourth foot blowout member 75 .

The foot duct 71 is a duct that forms a blowout flow path 710 through which the air blowing upward of the seat cushion Sc passes. The foot duct 71 is connected to the foot opening 24 at its upstream end in the air flow. Further, the foot duct 71 is branched into four on the downstream side of the air flow, and the ends of the branched portions on the downstream side of the air flow are a first foot blowing member 72, a second foot blowing member 73, and a third foot blowing member. 74, connected to the fourth foot blowing member 75;

As shown in FIG. 5, the first foot blow-out member 72 and the second foot blow-out member 73 target the area below the right seat cushion Scd on which the driver sits. Further, the third foot blowing member 74 and the fourth foot blowing member 75 target the area below the left seat cushion Scp on which the fellow passenger sits.

The first foot blowout member 72 is a hole forming member that forms a center foot blowout hole 720 for blowing conditioned air from the center side in the width direction DR3 of the vehicle 1 toward the lower side of the right seat cushion Scd on which the driver is seated. .

The second foot blowout member 73 is a hole forming member that forms a side foot blowout hole 730 for blowing out conditioned air from the right side in the width direction DR3 of the vehicle 1 toward the lower side of the right seat cushion Scd on which the driver is seated.

The third foot blowout member 74 is a hole forming member that forms a center foot blowout hole 740 for blowing conditioned air from the center side in the width direction DR3 of the vehicle 1 toward the lower side of the left seat cushion Scp on which the fellow passenger sits. .

The fourth foot blowing member 75 is a hole forming member that forms a side foot blowing hole 750 for blowing conditioned air from the left side in the width direction DR3 of the vehicle 1 toward below the left seat cushion Scp on which the fellow passenger sits.

Each of the foot blowout members 72 to 75 is fixed to the instrument panel IP by being fitted into openings formed in the lower surface of the instrument panel IP.

Each foot blowout hole 720, 730, 740, 750 opens to the instrument panel IP. Each foot blowout hole 720, 730, 740, 750 has a flat hole shape. Specifically, each foot blowout hole 720 , 730 , 740 , 750 is configured as an elongated blowout hole extending in the front-rear direction DR<b>2 of the vehicle 1 . Each foot blowout hole 720, 730, 740, 750 has a dimension in the width direction DR3 smaller than a dimension in the front-rear direction DR2 when viewed from the air blowing direction.

Returning to FIG. 2, the upper and lower partition plate 121 extends to the vicinity of the rear wall portion of the air conditioning case 12 on the vehicle rear side, and also serves to partition the first mixing space 126 and the second mixing space 127 . A vertical communication port 26 is formed at the end of the vertical partition plate 121 on the vehicle rear side. The first mixing space 126 and the second mixing space 127 communicate with each other through the vertical communication port 26 . An opening/closing door 27 is arranged in the vertical communication port 26 . The opening/closing door 27 is connected to an electric actuator (not shown), and is configured to open and close the vertical communication port 26 by the electric actuator. The opening/closing door 27 is set to a position to close the vertical communication port 26 in the two-layer inside/outside air mode, and to a position to open the vertical communication port 26 in other than the two-layer inside/outside air mode.

Next, an overview of the control system of the air conditioning unit 10 will be described. The air conditioning unit 10 is configured to be automatically controlled by a control device (not shown). The control device is composed of a processor, a microcomputer including a memory, and the like. It should be noted that the control device is supplied with power from the vehicle-mounted battery when the start switch of the vehicle 1 is turned on.

The control device controls various devices arranged in the blower unit and the air conditioning unit 10 according to a preset program. Sensor signals from the sensor group, operation signals from an air-conditioning operation panel installed on the instrument panel, and the like are input to the control device. The operation panel is provided with a temperature setting switch for setting the indoor temperature, a blowout mode setting switch, an inside/outside air mode setting switch, an air conditioning mode setting switch, and the like.

Various devices arranged in the air conditioning unit 10 are connected to the control device. For example, the control device is connected to the first air mix door 181, the second air mix door 182, the defroster door 21, the face door 23, the foot door 25, the open/close door 27, and the like. The control device controls the air conditioning unit 10 in an appropriate state by controlling various devices.

Next, the operation of the vehicle air conditioner will be described with reference to FIG. When the blow mode is set to the face mode by the blow mode setting switch on the operation panel, the position of the face door 23 is controlled to the open position where the face opening 22 is opened by the control device. As a result, the conditioned air whose temperature has been adjusted by the air conditioning unit 10 is blown out from the face blowing part 60 toward the upper body of the occupant as indicated by the arrow F1 in FIG.

Further, when the blow mode is set to the foot mode by the blow mode setting switch on the operation panel, the position of the foot door 25 is controlled to the open position where the foot opening 24 is opened by the control device. As a result, the conditioned air whose temperature has been adjusted by the air conditioning unit 10 is blown out from the foot blowing part 70 toward the feet of the occupant as indicated by the arrow F2 in FIG.

Further, when the blowout mode is set to the defroster mode by the blowout mode setting switch on the operation panel, the control device controls the position of the defroster door 21 to the open position where the defroster opening 20 is opened. As a result, the air-conditioned air temperature-controlled by the air-conditioning unit 10 is blown toward the inside of the windshield W from the defroster blowing portion 50 as indicated by an arrow F3 in FIG.

The defroster blowout portion 50 of the present embodiment is provided with a diffusion suppressing portion 53 for the hole peripheral portion 521 of the defroster blowout hole 520 . Diffusion of the airflow blown toward the inside of the windshield W from the defroster blowout hole 520 is suppressed by the diffusion suppressing portion 53 . As a result, the reaching distance of the airflow blown out from the defroster blowout hole 520 to the windshield W becomes longer.

Here, FIGS. 6 and 7 show a defroster blowout section CE which is a comparative example of the defroster blowout section 50 of this embodiment. The defroster blowout part CE of the comparative example is different from the defroster blowout part of the present embodiment in that a plurality of fine holes Hs constituting the diffusion suppressing part D are provided so as to surround the defroster blowout hole Hb in a satellite shape at equal intervals. It is different from the part 50. Other configurations of the defroster blowout section CE of the comparative example are configured in the same manner as the defroster blowout section 50 of the present embodiment.

In the defroster blowout part CE of the comparative example, fine holes Hs are formed in the entire peripheral edge of the defroster blowout hole Hb. That is, the diffusion suppressing portion D is also provided in the long edge portion where the distance from the windshield W is small. Therefore, the defroster blowout portion CE of the comparative example has a dimension Lce in the front-rear direction DR2 larger than the dimension L in the front-rear direction DR2 of the defroster blowout portion 50 of the present embodiment. As a result, the defroster blowout section CE of the comparative example is larger in size than the defroster blowout section 50 of the present embodiment.

Further, in the defroster blowing part CE of the comparative example, the diffusion suppressing part D is provided in the long edge part where the distance from the windshield W is small. In such a structure, the jet from the diffusion suppressing portion D collides with the inner surface of the windshield W to generate a vortex, and the vortex easily disturbs the airflow blown out from the defroster blowout hole Hb. Such airflow turbulence is not preferable because it shortens the reach of the airflow. Further, when the fine holes Hs are formed in the entire peripheral portion of the defroster blowout hole Hb, the diffusion suppressing portion D itself acts as a ventilation resistance, resulting in an increase in pressure loss and a decrease in air volume.

In contrast, in the defroster blowout portion 50 of the present embodiment, the diffusion suppressing portion 53 is provided only on the second long edge portion 523 of the hole peripheral portion 521 . According to this, the diffusion of the airflow blown inside the windshield W from the defroster blowout hole 520 is suppressed by the diffusion suppressing portion 53 . Specifically, as shown in FIG. 8 , most of the airflow flowing through the blowout passage 510 inside the defroster duct 51 is blown inside the windshield W from the defroster blowout hole 520 . At this time, part of the airflow flowing through the blowout channel 510 flows into the plurality of fine channels 532 and is blown out as a jet from the plurality of fine holes 531 . The jets blown out from the plurality of fine holes 531 function as an air curtain that suppresses the diffusion of the airflow, thereby suppressing the diffusion of the airflow blown inside the windshield W from the defroster blowout holes 520 . It should be noted that the windshield W is present as a barrier at a location near the inner surface of the windshield W, so that the airflow is less likely to diffuse.

As described above, according to the defroster blowout part 50 of the present embodiment, it is difficult to reduce the air volume and increase the size due to the aforementioned increase in pressure loss, and it is possible to suppress the diffusion of the airflow in the direction away from the windshield W. As a result, it is possible to sufficiently prevent fogging of the windshield W by the airflow from the defroster blowout hole 520 .

In the defroster blowout portion 50 of the present embodiment described above, the diffusion suppressing portion 53 provided in the hole peripheral portion 521 of the defroster blowout hole 520 makes it difficult for the airflow blown toward the blowout target to diffuse. Therefore, it is possible to increase the reaching distance of the airflow blown from the defroster blowout hole 520 to the blowout target.

In particular, the diffusion suppressing portion 53 is provided only on the second long edge portion 523 of the pair of long edge portions 522 and 523 and the pair of short edge portions 524 and 525 that constitute the hole peripheral edge portion 521 . Therefore, compared to the case where the diffusion suppressing portions 53 are provided so as to surround the defroster blowout holes 520 at equal intervals in a satellite shape, the size of the defroster blowout portion 50 can be reduced.

Specifically, the diffusion suppressing portion 53 is composed of a plurality of fine holes 531 . According to this, the jet flow blown out from the plurality of fine holes 531 functions as an air curtain that suppresses the diffusion of the air flow, thereby suppressing the diffusion of the air flow blown out to the target. As a result, the reaching distance of the airflow blown from the defroster blowout hole 520 toward the blowout target can be increased.

Moreover, the diffusion suppressing portion 53 includes a partition portion 533 that forms a plurality of fine channels 532 that guide part of the airflow flowing through the blowout channel 510 to a plurality of fine holes 531 . According to this, inside the defroster duct 51 , the blowout channel 510 and the plurality of fine channels 532 are partitioned by the partition portion 533 . As a result, the airflow flowing through the plurality of fine channels 532 can be blown out from the plurality of fine holes 531 as jets.

Here, when the airflow is blown out from the defroster blowout hole 520 along the inner surface of the windshield W, the windshield W exists as a barrier at a location near the inner surface of the windshield W, so the airflow is less likely to diffuse. Therefore, it is not necessary to provide the diffusion suppressing portion 53 at a location near the inner surface of the windshield W.

Nevertheless, when the diffusion suppressing portion 53 is provided in the first long edge portion 522 which is short from the windshield W, the diffusion suppressing portion 53 itself acts as a ventilation resistance, resulting in an increase in pressure loss and a decrease in air volume. The decrease in air volume can be resolved by enlarging the opening area of the defroster blowout hole 520, but in this case, there is a trade-off in that the size of the defroster blowout portion 50 is increased.

On the other hand, in the present embodiment, the diffusion suppressing portion 53 is provided on the second long edge portion 523 that is farther from the windshield W. As shown in FIG. Therefore, it is difficult for the defroster blowout portion 50 to increase in size and to reduce the air volume due to the aforementioned increase in pressure loss. As a result, it is possible to sufficiently suppress fogging of the windshield W by the airflow from the defroster blowout hole 520 .

(First Modification of First Embodiment)
In the first embodiment, the plurality of fine holes 531 of the diffusion suppressing portion 53 are configured as circular holes, but the present invention is not limited to this. The plurality of fine holes 531 may be configured with hole shapes other than round holes. For example, as shown in FIG. 9, the plurality of fine holes 531 may be configured in a substantially square hole shape. This also applies to the second embodiment.

(Second Modification of First Embodiment)
In the first embodiment, the plurality of fine holes 531 are constituted by through-holes penetrating the front and back of the hole peripheral portion 521, but the present invention is not limited to this. For example, as shown in FIG. 10, the plurality of fine holes 531 may be configured by a plurality of holes formed by partitioning an elongated elongated hole with a plurality of partition plates 534 .

(Another modification of the first embodiment)
In the first embodiment, the diffusion suppressing portion 53 is provided on the second long edge portion 523 as an example, but the present invention is not limited to this. If diffusion of the airflow from the defroster blowout hole 520 can be suppressed, the diffusion suppressing portion 53 is formed on one of the first long edge portion 522 and the pair of short edges 524 and 525 instead of the second long edge portion 523 . may be provided. This also applies to the following embodiments.

In the first embodiment, the diffusion suppressing portion 53 is added to the defroster blowing portion 50 that blows air toward the windshield W, but the present invention is not limited to this. For example, if the vehicle is provided with a side defroster blowout portion that blows air toward the side glass, a diffusion suppressing portion may be added to the side defroster blowout portion.

In the first embodiment, the face blowing portion 60 is configured by a face duct 61, a first face blowing member 62, a second face blowing member 63, a third face blowing member 64, and a fourth face blowing member 65. However, it is not limited to this. The face blowing part 60 may be composed of, for example, a face duct 61 , a first face blowing member 62 and a third face blowing member 64 . Although each of the face blow-out holes 620, 630, 640, and 650 has been illustrated as having a flat hole shape, it is not limited to this, and may have, for example, a substantially circular shape or a substantially square shape. This is the same for the second, fifth, sixth, and seventh hereinafter.

In the first embodiment, the first foot blowout member 72, the second foot blowout member 73, the third foot blowout member 74, and the fourth foot blowout member 75 are fixed to the instrument panel IP. is not limited to Each foot blowout member 72-75 may not be fixed to the instrument panel IP. This also applies to the following embodiments.

In the first embodiment, the foot blowout section 70 is configured by a foot duct 71, a first foot blowout member 72, a second foot blowout member 73, a third foot blowout member 74, and a fourth foot blowout member 75. However, it is not limited to this. The foot blowout section 70 may be composed of, for example, a foot duct 71 , a first foot blowout member 72 and a third foot blowout member 74 . Although each of the foot outlet holes 720, 730, 740, and 750 is illustrated as having a flat hole shape, the shape is not limited to this, and may be, for example, substantially circular or substantially square. This also applies to the following second, third, fourth and seventh embodiments.

(Second embodiment)
Next, a second embodiment will be described with reference to FIG. In this embodiment, portions different from the first embodiment will be mainly described.

In the blowout passage 510 inside the defroster duct 51, the flow velocity of the airflow near the wall surface tends to be smaller than that at a position away from the wall surface due to the wall loss. Therefore, if a plurality of fine channels 532 are formed near the inner wall surface of the defroster duct 51, the flow rate of air flowing through the fine channels 532 will be insufficient.

Therefore, as shown in FIG. 11, in the diffusion suppressing portion 53 of the present embodiment, the plurality of fine channels 532 have a constriction shape in which the channel area decreases from the upstream side to the downstream side of the air flow. .

Specifically, the diffusion suppressing portion 53 is configured such that the interval L1 between the partition portion 533 on the upstream side of the air flow and the inner wall surface of the defroster duct 51 is larger than the interval L2 on the downstream side of the air flow. It is

Other configurations are the same as those of the first embodiment. The defroster blowout section 50 of the present embodiment has a configuration common to that of the first embodiment, and the same effects as those of the first embodiment can be obtained from the configuration.

In particular, in the defroster blowout portion 50 of the present embodiment, the plurality of fine flow passages 532 of the diffusion suppressing portion 53 have a constricted flow shape. According to this, it is possible to increase the speed of the airflow while ensuring the flow rate of the airflow flowing through the plurality of fine channels 532 . That is, according to the defroster blowout part 50 of the present embodiment, high-speed jets can be blown out from the plurality of fine holes 531 . This is particularly effective in lengthening the reaching distance of the airflow to be blown to the blowing target.

(Third Embodiment)
Next, a third embodiment will be described with reference to FIGS. 12 to 14. FIG. In this embodiment, portions different from the first embodiment will be mainly described.

In this embodiment, the first face blow-out member 62 and the second face blow-out member 63 of the face blow-out portion 60 are structured to suppress the diffusion of the airflow. The face blowing part 60 has a structure in which not only the first face blowing member 62 and the second face blowing member 63 but also the third face blowing member 64 and the fourth face blowing member 65 are configured to suppress the diffusion of the airflow. may be

As shown in FIG. 12, the first face blowing member 62 and the second face blowing member 63 are set in a portion of the instrument panel IP located in front of the right seat S on which the driver sits. The first face blowing member 62 is set on the center side of the vehicle 1 in the width direction DR3. Further, the second face blowing member 63 is set on the right side of the first face blowing member 62 in the width direction DR3 of the vehicle 1 .

As shown in FIG. 13 , the center face blowout hole 620 is configured as an elongated blowout hole extending in the vertical direction DR1 of the vehicle 1 . The center face blowing hole 620 has a dimension in the vertical direction DR1 larger than a dimension in the width direction DR3 when viewed from the air blowing direction.

The first face blowout member 62 has a hole peripheral portion 621 surrounding the center face blowout hole 620 . The hole peripheral edge portion 621 is connected to a pair of long edge portions 622 and 623 extending opposite to each other, both ends of the pair of long edge portions 622 and 623, and is larger than the interval between the pair of long edge portions 622 and 623. It comprises a pair of spaced apart short edges 624 , 625 .

The first face blowing member 62 is installed on the instrument panel IP such that the pair of long edges 622 and 623 of the center face blowing hole 620 extend along the vertical direction DR1 of the vehicle 1 .

A hole peripheral portion 621 of the center face blowout hole 620 is provided with a diffusion suppressing portion 66 that suppresses the diffusion of the airflow blown out from the center face blowout hole 620 above the right seat cushion Scd on which the driver is seated. Specifically, the diffusion suppressing portion 66 is provided on the first long edge portion 622 of the pair of long edge portions 622 and 623, which has a short distance from the seat cushion Scd in the width direction DR3. That is, of the pair of long edges 622 and 623, the diffusion suppressing portion 66 is provided on the second long edge 623 and the pair of short edges 624 and 625 that are farther from the seat cushion Scd in the width direction DR3. do not have. The diffusion suppressor 66 of this embodiment is configured in the same manner as the diffusion suppressor 53 described in the first and second embodiments. That is, the diffusion suppressing portion 66 includes a plurality of fine holes 661 , a partition portion forming a plurality of fine channels for guiding part of the airflow flowing through the blowout channel 610 to the plurality of fine holes 661 , and the like. .

The second face blowout member 63 has a hole peripheral portion 631 surrounding the side face blowout hole 630 . The hole peripheral edge portion 631 is connected to a pair of long edge portions 632 and 633 extending opposite to each other, both ends of the pair of long edge portions 632 and 633, and is larger than the interval between the pair of long edge portions 632 and 633. It comprises a pair of spaced apart short edges 634 , 635 .

The second face blowing member 63 is installed on the instrument panel IP such that the pair of long edges 632 and 633 of the side face blowing hole 630 extend along the vertical direction DR1 of the vehicle 1 .

A hole peripheral portion 631 of the side face blowout hole 630 is provided with a diffusion suppressing portion 67 that suppresses the diffusion of the airflow blown out from the side face blowout hole 630 above the right seat cushion Scd on which the driver is seated. Specifically, the diffusion suppressing portion 67 is provided on the first long edge portion 632 of the pair of long edge portions 632 and 633, which has a short distance from the seat cushion Scd in the width direction DR3. That is, of the pair of long edges 632 and 633, the diffusion suppressing portion 67 is provided on the second long edge 633 and the pair of short edges 634 and 635 that are farther from the seat cushion Scd in the width direction DR3. do not have. The diffusion suppressing section 67 of this embodiment is configured in the same manner as the diffusion suppressing section 53 described in the first and second embodiments. That is, the diffusion suppressing portion 67 includes a plurality of fine holes 671 , a partition portion forming a plurality of fine channels for guiding part of the airflow flowing through the blowout channel 610 to the plurality of fine holes 671 , and the like. .

The face blowout portion 60 of the present embodiment is provided with diffusion suppressing portions 66 and 67 for the hole peripheral portions 621 and 631 of the first face blowout member 62 and the second face blowout member 63 . The diffusion suppressing portions 66 and 67 suppress the diffusion of the airflow blown out from the center face blowing holes 620 and the side face blowing holes 630 toward the driver's upper body. As a result, it is possible to lengthen the reaching distance of the air currents blown from the center face blowing holes 620 and the side face blowing holes 630 toward the driver's upper body.

Specifically, in the first face blowing member 62 and the second face blowing member 63 of the present embodiment, the diffusion suppressing portions 66 and 67 are formed only on the first long edges 622 and 632 of the hole peripheral edges 621 and 631. is provided. Therefore, as shown in FIG. 14, the diffusion suppressing portions 66 and 67 suppress the diffusion of the airflow blown out from the side of the center face blowing hole 620 and the side face blowing hole 630 near the seat cushion Scd. As a result, comfortable airflow can easily reach the driver seated on the seat cushion Scd.

On the other hand, the airflow blown out from the side of the center face blowout hole 620 and the side face blowout hole 630 farther from the seat cushion Scd is diffused around the driver seated on the seat cushion Scd, thereby making the surroundings of the driver comfortable. state can be made.

According to the face blowing portion 60 configured in this manner, the air currents from the center face blowing holes 620 and the side face blowing holes 630 can provide the passenger with a comfortable air-conditioning feeling, and the interior of the vehicle can be kept in a comfortable state. can.

In the face blowout portion 60 of this embodiment described above, the diffusion suppressing portions 66 and 67 are provided only at the first long edge portions 622 and 632 of the center face blowout hole 620 and the side face blowout hole 630 .

As a result, diffusion of the airflow blown from the side of the center face blowout hole 620 and the side face blowout hole 630 near the seat cushion Scd is suppressed, so that the comfortable airflow reaches the driver seated on the seat cushion Scd. becomes easier. In addition, compared to the case where the diffusion suppressing portions 66 and 67 are provided so as to surround the center face blowing hole 620 and the side face blowing holes 630 at equal intervals in a satellite shape, the size of the face blowing portion 60 can be reduced. .

(Modified example of the third embodiment)
In the third embodiment, the plurality of minute holes 661 and 671 of the diffusion suppressing portions 66 and 67 are configured as round holes, but the present invention is not limited to this. The plurality of fine holes 661 and 671 may be configured with hole shapes other than round holes. For example, the plurality of fine holes 661 and 671 may be configured in a substantially rectangular hole shape. This also applies to the fourth embodiment.

In the third embodiment, the plurality of fine holes 661 and 671 are constituted by through holes penetrating the front and back of the hole peripheral portions 621 and 631, but the present invention is not limited to this. The plurality of fine holes 661 and 671 may be composed of a plurality of holes formed by partitioning elongated slots with a plurality of partition plates.

(Fourth embodiment)
Next, a fourth embodiment will be described with reference to FIGS. 15 and 16. FIG. In this embodiment, portions different from the third embodiment will be mainly described.

As shown in FIG. 15, in the first face blowing member 62, of the pair of long edge portions 622, 623 forming the center face blowing hole 620, the second long edge portion 620, which is farther from the seat cushion Scd in the width direction DR3, is provided. A diffusion suppressing portion 66 is provided for the edge portion 623 . That is, of the pair of long edges 622 and 623, the diffusion suppressing portion 66 is provided on the first long edge 622 and the pair of short edges 624 and 625, which have a short distance from the seat cushion Scd in the width direction DR3. do not have. The diffusion suppressor 66 of this embodiment is configured in the same manner as in the third embodiment.

In the second face blowing member 63, of the pair of long edges 632, 633 forming the side face blowing hole 630, the air diffuses toward the second long edge 633, which is farther from the seat cushion Scd in the width direction DR3. A suppressor 67 is provided. That is, of the pair of long edges 632 and 633, the diffusion suppressing portion 67 is provided on the first long edge 632 and the pair of short edges 634 and 635, which have a short distance from the seat cushion Scd in the width direction DR3. do not have. The diffusion suppressor 67 of this embodiment is configured in the same manner as in the third embodiment.

The face blowout portion 60 of the present embodiment is provided with diffusion suppressing portions 66 and 67 for the hole peripheral portions 621 and 631 of the first face blowout member 62 and the second face blowout member 63 . The diffusion suppressing portions 66 and 67 suppress the diffusion of the airflow blown out from the center face blowing holes 620 and the side face blowing holes 630 toward the driver's upper body. As a result, it is possible to lengthen the reaching distance of the air currents blown from the center face blowing holes 620 and the side face blowing holes 630 toward the driver's upper body.

Specifically, in the first face blowing member 62 and the second face blowing member 63 of the present embodiment, the diffusion suppressing portions 66 and 67 are formed only on the second long edges 623 and 633 of the hole peripheral edges 621 and 631. is provided.

Therefore, as shown in FIG. 16, the airflow blown from the side of the center face blowout hole 620 and the side face blowout hole 630 farther from the seat cushion Scd diffuses around the driver seated on the seat cushion Sc. Therefore, the surroundings of the driver can be made comfortable.

On the other hand, the diffusion suppressing portions 66 and 67 suppress the diffusion of the airflow blown from the side of the center face blowing hole 620 and the side face blowing hole 630 near the seat cushion Scd. This makes it difficult for comfortable airflow around the driver seated on the seat cushion Scd to diffuse to the outside.

Thus, in the configuration in which the diffusion suppressing portions 66 and 67 are provided in the second long edge portions 623 and 633 that are far from the seat cushion Scd, the airflow from the center face blowout hole 620 and the side face blowout hole 630 is reduced. It can be focused around the driver. This is particularly effective in providing comfortable air conditioning with high immediate effect.

In the face blowout portion 60 of this embodiment described above, the diffusion suppression portions 66 and 67 are provided only at the second long edge portions 623 and 633 of the center face blowout hole 620 and the side face blowout hole 630 .

As a result, diffusion of the airflow blown from the far side of the seat cushion Scd in the center face blowout hole 620 and the side face blowout hole 630 is suppressed, so that the comfortable airflow reaches the driver seated on the seat cushion Scd. becomes easier. In addition, compared to the case where the diffusion suppressing portions 66 and 67 are provided so as to surround the center face blowing hole 620 and the side face blowing holes 630 at equal intervals in a satellite shape, the size of the face blowing portion 60 can be reduced. .

(Fifth embodiment)
Next, a fifth embodiment will be described with reference to FIGS. 17 to 19. FIG. In this embodiment, portions different from the first embodiment will be mainly described.

In this embodiment, the first foot blow-out member 72 and the second foot blow-out member 73 of the foot blow-out portion 70 are structured to suppress diffusion of the airflow. The foot blowing part 70 has a structure in which not only the first foot blowing member 72 and the second foot blowing member 73 but also the third foot blowing member 74 and the fourth foot blowing member 75 are configured to suppress the diffusion of the airflow. may be

As shown in FIG. 17, the first foot blowout member 72 and the second foot blowout member 73 are set in a portion of the instrument panel IP located in front of the right seat S on which the driver sits. The first foot blowout member 72 is set on the center side of the vehicle 1 in the width direction DR3. In addition, the second foot blowout member 73 is set to the right of the first foot blowout member 72 in the width direction DR3 of the vehicle 1 .

As shown in FIG. 18 , the center foot blowout hole 720 is configured as an elongated blowout hole extending in the front-rear direction DR<b>2 of the vehicle 1 . The center foot blowout hole 720 has a dimension in the front-rear direction DR2 that is larger than a dimension in the width direction DR3 when viewed from the air blowing direction.

The first foot blowout member 72 has a hole peripheral portion 721 surrounding the center foot blowout hole 720 . The hole peripheral edge portion 721 is connected to a pair of long edge portions 722 and 723 extending opposite to each other, both ends of the pair of long edge portions 722 and 723, and is larger than the interval between the pair of long edge portions 722 and 723. It comprises a pair of spaced apart short edges 724 , 725 .

The first foot blowout member 72 is installed on the instrument panel IP such that the pair of long edge portions 722 and 723 of the center foot blowout hole 720 extends along the longitudinal direction DR2 of the vehicle 1 .

A hole peripheral portion 721 of the center foot blowout hole 720 is provided with a diffusion suppressing portion 76 that suppresses the diffusion of the airflow blown out from the center foot blowout hole 720 to the lower side of the right seat cushion Scd on which the driver is seated. Specifically, the diffusion suppressing portion 76 is provided on the first long edge portion 722 of the pair of long edge portions 722 and 723, which has a short distance from the seat cushion Scd in the width direction DR3. That is, of the pair of long edges 722 and 723, the diffusion suppressing portion 76 is provided on the second long edge 723 and the pair of short edges 724 and 725 that are farther from the seat cushion Scd in the width direction DR3. do not have. The diffusion suppressing section 76 of this embodiment is configured in the same manner as the diffusion suppressing section 53 described in the first and second embodiments. That is, the diffusion suppressing portion 76 includes a plurality of fine holes 761 , a partition portion forming a plurality of fine channels for guiding part of the airflow flowing through the blowout channel 710 to the plurality of fine holes 761 , and the like. .

The second foot blowout member 73 has a hole peripheral portion 731 surrounding the side foot blowout hole 730 . The hole peripheral edge portion 731 is connected to a pair of long edge portions 732 and 733 extending opposite to each other, both ends of the pair of long edge portions 732 and 733, and is larger than the interval between the pair of long edge portions 732 and 733. It comprises a pair of spaced apart short edges 734 , 735 .

The second foot blowout member 73 is installed on the instrument panel IP such that the pair of long edge portions 732 and 733 of the side foot blowout hole 730 extends along the longitudinal direction DR2 of the vehicle 1 .

A hole peripheral portion 731 of the side foot blowout hole 730 is provided with a diffusion suppressing portion 77 that suppresses the diffusion of the airflow blown out from the side foot blowout hole 730 to the lower side of the right seat cushion Scd on which the driver is seated. Specifically, the diffusion suppressing portion 77 is provided on the first long edge portion 732 of the pair of long edge portions 732 and 733, which has a short distance from the seat cushion Scd in the width direction DR3. That is, of the pair of long edges 732 and 733, the diffusion suppressing portion 77 is provided on the second long edge 733 and the pair of short edges 734 and 735 that are farther from the seat cushion Scd in the width direction DR3. do not have. The diffusion suppressing section 77 of this embodiment is configured in the same manner as the diffusion suppressing section 53 described in the first and second embodiments. That is, the diffusion suppressing portion 77 includes a plurality of fine holes 771 , a partition portion forming a plurality of fine channels for guiding part of the airflow flowing through the blowout channel 710 to the plurality of fine holes 771 , and the like. .

The foot blowout portion 70 of the present embodiment is provided with diffusion suppressing portions 76 and 77 for the hole peripheral portions 721 and 731 of the first foot blowout member 72 and the second foot blowout member 73 . The diffusion suppressing portions 76 and 77 suppress the diffusion of the airflow blown out from the center foot blowout hole 720 and the side foot blowout hole 730 toward the feet of the driver. As a result, it is possible to lengthen the reaching distance of the airflow blown out from the center foot blowout holes 720 and the side foot blowout holes 730 toward the feet of the driver.

Specifically, in the first foot blowing member 72 and the second foot blowing member 73 of the present embodiment, the diffusion suppressing portions 76 and 77 are formed only on the first long edges 722 and 732 of the hole peripheral edges 721 and 731. is provided. Therefore, as shown in FIG. 19, the diffusion suppressing portions 76 and 77 suppress the diffusion of the airflow blown out from the side of the center foot blowout hole 720 and the side foot blowout hole 730 near the seat cushion Scd. As a result, comfortable airflow can easily reach the driver seated on the seat cushion Scd.

On the other hand, the airflow blown out from the side of the center foot blowout hole 720 and the side foot blowout hole 730 farther from the seat cushion Scd spreads around the driver seated on the seat cushion Scd, thereby making the surroundings of the driver comfortable. state can be made.

According to the foot blowing portion 70 configured in this manner, the air currents from the center foot blowing holes 720 and the side foot blowing holes 730 can provide the occupant with a comfortable air-conditioning feeling, and the interior of the vehicle can be kept in a comfortable state. can.

In the foot blowout portion 70 of this embodiment described above, the diffusion suppression portions 76 and 77 are provided only at the first long edge portions 722 and 732 of the center foot blowout hole 720 and the side foot blowout hole 730 .

As a result, diffusion of the airflow blown from the side of the center foot blowout hole 720 and the side foot blowout hole 730 near the seat cushion Scd is suppressed, so that the comfortable airflow reaches the driver seated on the seat cushion Scd. becomes easier. In addition, compared to the case where the diffusion suppressing portions 76 and 77 are provided so as to surround the center foot blowout hole 720 and the side foot blowout hole 730 at equal intervals in a satellite shape, the size of the foot blowout portion 70 can be reduced. .

(Modified example of the fifth embodiment)
In the fifth embodiment, the plurality of fine holes 761 and 771 of the diffusion suppressing portions 76 and 77 are configured as round holes, but the present invention is not limited to this. The plurality of fine holes 761 and 771 may be configured with hole shapes other than round holes. For example, the plurality of fine holes 761 and 771 may be configured in a substantially rectangular hole shape. This also applies to the sixth embodiment.

In the fifth embodiment, the plurality of fine holes 761 and 771 are constituted by through holes penetrating the front and back of the hole peripheral portions 721 and 731, but the present invention is not limited to this. The plurality of fine holes 761 and 771 may be composed of a plurality of holes formed by partitioning elongated slots with a plurality of partition plates.

(Sixth embodiment)
Next, a sixth embodiment will be described with reference to FIGS. 20 and 21. FIG. In this embodiment, portions different from the fifth embodiment will be mainly described.

As shown in FIG. 20, the first foot blowout member 72 has a pair of long edge portions 722 and 723 that form the center foot blowout hole 720, and has a second long edge portion that is farther from the seat cushion Scd in the width direction DR3. A diffusion suppressing portion 76 is provided for the edge portion 723 . That is, of the pair of long edges 722 and 723, the diffusion suppressing portion 76 is provided on the first long edge 722 and the pair of short edges 724 and 725, which have a short distance from the seat cushion Scd in the width direction DR3. do not have. The diffusion suppressor 76 of this embodiment is configured in the same manner as in the fifth embodiment.

In the second foot blowing member 73, the air is diffused to the second long edge 733, which is farther from the seat cushion Scd in the width direction DR3, of the pair of long edges 732, 733 forming the side foot blowing hole 730. A suppressor 77 is provided. That is, of the pair of long edges 732 and 733, the diffusion suppressing portion 77 is provided on the first long edge 732 and the pair of short edges 734 and 735, which have a short distance from the seat cushion Scd in the width direction DR3. do not have. The diffusion suppressor 77 of this embodiment is configured in the same manner as in the fifth embodiment.

The foot blowout portion 70 of the present embodiment is provided with diffusion suppressing portions 76 and 77 for the hole peripheral portions 721 and 731 of the first foot blowout member 72 and the second foot blowout member 73 . The diffusion suppressing portions 76 and 77 suppress the diffusion of the airflow blown out from the center foot blowout hole 720 and the side foot blowout hole 730 toward the feet of the driver. As a result, it is possible to lengthen the reaching distance of the airflow blown out from the center foot blowout holes 720 and the side foot blowout holes 730 toward the driver's upper body.

Specifically, in the first foot blowing member 72 and the second foot blowing member 73 of the present embodiment, the diffusion suppressing portions 76 and 77 are formed only on the second long edges 723 and 733 of the hole peripheral edges 721 and 731. is provided.

Therefore, as shown in FIG. 21, air currents blown from the side of the center foot blowout hole 720 and the side foot blowout hole 730 farther from the seat cushion Scd diffuse around the driver seated on the seat cushion Sc. Therefore, it is possible to make the surroundings of the driver comfortable.

On the other hand, the diffusion suppressing portions 76 and 77 suppress the diffusion of the airflow blown from the side of the center foot blowout hole 720 and the side foot blowout hole 730 near the seat cushion Scd. This makes it difficult for comfortable airflow around the driver seated on the seat cushion Scd to diffuse to the outside.

Thus, in the configuration in which the diffusion suppressing portions 76 and 77 are provided in the second long edge portions 723 and 733 that are far from the seat cushion Scd, the airflow from the center foot blowout hole 720 and the side foot blowout hole 730 is reduced. It can be focused around the driver. This is particularly effective in providing comfortable air conditioning with high immediate effect.

In the foot blowout portion 70 of this embodiment described above, the diffusion suppression portions 76 and 77 are provided only at the second long edge portions 723 and 733 of the center foot blowout hole 720 and the side foot blowout hole 730 .

As a result, diffusion of the airflow blown from the side far from the seat cushion Scd in the center foot blowout hole 720 and the side foot blowout hole 730 is suppressed, so that a comfortable airflow reaches the driver seated on the seat cushion Scd. becomes easier. In addition, compared to the case where the diffusion suppressing portions 76 and 77 are provided so as to surround the center foot blowout hole 720 and the side foot blowout hole 730 at equal intervals in a satellite shape, the size of the foot blowout portion 70 can be reduced. .

(Seventh embodiment)
Next, a seventh embodiment will be described with reference to FIGS. 22 to 25. FIG. In this embodiment, portions different from the first embodiment will be mainly described.

As shown in FIGS. 22 and 23, the air conditioning unit 10 of the present embodiment is provided with a cold air blowing section 80 that blows cold air toward the second mixing space 127, which is the blowing target, inside the air conditioning case 12. As shown in FIG. The cold air blowing part 80 has a cold air duct 81 forming the lower bypass passage 123B of the air conditioning case 12 and a hole forming member 82 forming a cold air blowing hole 820 for blowing the cold air toward the second mixing space 127. .

The cool air duct 81 is a duct that forms the lower bypass passage 123B through which cool air blown toward the second mixing space 127 passes. The cold air duct 81 is connected to the hole forming member 82 at the downstream end of the air flow. In addition, in this embodiment, the lower side bypass passage 123B constitutes a blow-out passage. In addition, the second mixing space 127 constitutes a confluence space where cold air and warm air merge.

The hole forming member 82 is a member that forms cold air blowing holes 820 for blowing air toward the second mixing space 127 . The hole forming member 82 is connected to the downstream side of the cold air duct 81 in the air flow. The hole forming member 82 is formed integrally with the air conditioning case 12 .

The cool air blowing hole 820 has a flat hole shape. Specifically, as shown in FIG. 24 , cold air blowing hole 820 is configured as an elongated blowing hole extending in width direction DR<b>3 of vehicle 1 . Cold air blowing hole 820 has a dimension in width direction DR3 that is larger than a dimension in front-rear direction DR2 when viewed from the air blowing direction.

The hole forming member 82 has a hole peripheral portion 821 surrounding the cool air blowing hole 820 . The hole peripheral edge portion 821 is connected to a pair of long edge portions 822 and 823 extending opposite to each other, and to both ends of the pair of long edge portions 822 and 823, and is larger than the interval between the pair of long edge portions 822 and 823. It comprises a pair of spaced apart short edges 824 , 825 . A pair of long edges 822 and 823 of cold air blowing hole 820 extends along width direction DR3 of vehicle 1 .

The hole peripheral portion 821 is provided with a diffusion suppressing portion 83 that suppresses the diffusion of the airflow blown out from the cool air blowing hole 820 into the second mixing space 127 .

Specifically, the diffusion suppressing portion 83 is provided on the first long edge portion 822 of the pair of long edge portions 822, 823, which is located at a short distance from the heater core 16 in the front-rear direction DR2. That is, of the pair of long edges 822 and 823, the diffusion suppressing portion 83 is not provided on the second long edge 823 and the pair of short edges 824 and 825 that are farther from the heater core 16 in the front-rear direction DR2. .

As shown in FIGS. 23 and 24, the diffusion suppressing portion 83 is composed of a plurality of fine holes 831. As shown in FIG. The plurality of fine holes 831 are for jetting out part of the airflow flowing through the lower bypass passage 123</b>B from the cold air blowing holes 820 toward the second mixing space 127 . The plurality of fine holes 831 are holes having an opening area smaller than that of the cool air blowing holes 820 . A plurality of fine holes 831 are formed side by side at regular intervals in the second long edge portion 823 . The plurality of fine holes 831 are configured as round holes. The plurality of fine holes 831 are composed of through holes penetrating vertically through the hole peripheral portion 821 . Note that the plurality of fine holes 831 may be arranged at different intervals.

Next, how the air flows in the cooling mode in the air conditioning unit 10 of this embodiment will be described with reference to FIG. 25 . In this example, how the air flows when the cool air that has passed through the bypass passages 122B and 123B is blown out from the face opening 22 will be described. In the cooling mode, the air suction mode is set to either the outside air mode or the inside air mode.

As shown in FIG. 25, the air flowing through the first air passage 122 passes through the evaporator 14 and is cooled. The cool air that has passed through the evaporator 14 does not pass through the heater core 16 , passes through the upper bypass passage 122</b>B and the first mixing space 126 , and then flows to the face opening 22 .

On the other hand, the air flowing through the second air passage 123 passes through the lower bypass passage 123B without passing through the heater core 16 . The cold air that has passed through the lower bypass passage 123B is directed upward by the vehicle rear portion of the air conditioning case 12, and then is blown out into the second mixing space 127 through the cold air blowing holes 820. As shown in FIG. The cool air flowing into the second mixing space 127 flows to the face opening 22 after passing through the first mixing space 126 .

Here, in the air conditioning unit 10, part of the cold air passing through the lower bypass passage 123B is jetted from the plurality of fine holes 831 forming the diffusion suppressing portion 83 and crossing the outlet of the lower warm air passage 123A as a second mixture. It is blown out into the space 127 . At this time, the jets blown out from the plurality of fine holes 831 run parallel to the cold air blown into the second mixing space 127 through the cold air blowing holes 820 .

As a result, the cold air that has flowed into the second mixing space 127 from the lower bypass passage 123B through the cold air blowing holes 820 flows into the first mixing space 126 without diffusing into the lower warm air passage 123A.

That is, the cold air that has flowed into the second mixing space 127 does not diffuse into the lower hot air passage 123A because the jet flow blown out from the plurality of fine holes 831 functions as an air curtain that suppresses the diffusion of the airflow. It flows into the mixing space 126 .

In the air conditioning unit 10 of the present embodiment described above, the cold air blowing part 80 arranged inside the air conditioning case 12 is provided with the diffusion suppressing part 83 . This makes it difficult for the diffusion suppressing portion 53 to diffuse the airflow blown toward the blowing target. Therefore, it is possible to lengthen the reaching distance of the airflow blown from the cold air blowing holes 820 toward the blowing target.

In particular, the diffusion suppressing portion 83 is provided only on the first long edge portion 822 of the pair of long edge portions 822 and 823 and the pair of short edge portions 824 and 825 that constitute the hole peripheral portion 821 of the cool air blowing hole 820. there is Therefore, compared to the case where the diffusion suppressing portions 83 are provided so as to surround the cold air blowing holes 820 in a satellite shape at equal intervals, it is possible to reduce the size of the cold air blowing portion 80 .

Specifically, the diffusion suppressing portion 83 is composed of a plurality of fine holes 831 . According to this, the jet flow blown out from the plurality of fine holes 831 functions as an air curtain that suppresses the diffusion of the air flow, thereby suppressing the diffusion of the air flow blown out to the target. That is, the airflow generated by the diffusion suppressing portion 53 makes it difficult for the air that has passed through the lower bypass passage 123B to diffuse toward the heater core 16 side. As a result, it is possible to prevent cold air flowing through the lower bypass passage 123B from flowing into the heater core 16 unintentionally. As a result, the maximum cooling performance of the air conditioning unit 10 can be improved.

(Modified example of the seventh embodiment)
In the seventh embodiment, the plurality of fine holes 831 of the diffusion suppressing portion 83 are configured as circular holes, but the present invention is not limited to this. The plurality of fine holes 831 may be configured with hole shapes other than round holes. For example, the plurality of fine holes 831 may be configured in a substantially square hole shape.

In the seventh embodiment, the plurality of fine holes 831 are constituted by through-holes penetrating the front and back of the hole peripheral portion 821, but the present invention is not limited to this. The plurality of fine holes 831 may be composed of a plurality of holes formed by partitioning an elongated elongated hole with a plurality of partition plates.

(Other embodiments)
Although representative embodiments of the present disclosure have been described above, the present disclosure is not limited to the above-described embodiments, and can be modified in various ways, for example, as follows.

In the above-described embodiments, the diffusion suppressing portions 53, 66, 67, 76, 77, 83 are configured by a plurality of fine holes 531, 661, 671, 761, 771, 831, but are not limited to this. . The diffusion suppressing portions 53, 66, 67, 76, 77, and 83 may be composed of, for example, a plurality of protrusions and recesses that generate a spiral vortex having a vortex axis that follows the mainstream flow. In this case, the eddy currents generated by the diffusion suppressing units 53, 66, 67, 76, 77, and 83 function as an air curtain that suppresses the diffusion of the air current blown toward the target, so that the air current that is blown toward the target is reached. It is possible to improve the distance.

In the above-described embodiment, the air blowing section of the present disclosure is applied to the air conditioning unit 10 that can be set to the inside/outside air two-layer mode, but it is not limited to this. The air blowing section of the present disclosure can also be applied to the air conditioning unit 10 that cannot be set to the inside/outside air two-layer mode. In addition, the air blowing section of the present disclosure can be widely applied to devices other than the air conditioning unit 10 as well.

In the above-described embodiments, it goes without saying that the elements that make up the embodiments are not necessarily essential unless explicitly stated as essential or clearly considered essential in principle.

In the above-described embodiments, when numerical values such as the number, numerical value, amount, range, etc. of the constituent elements of the embodiment are mentioned, when it is explicitly stated that they are essential, and in principle they are clearly limited to a specific number It is not limited to that particular number, unless otherwise specified.

In the above-described embodiments, when referring to the shape, positional relationship, etc. of components, etc., the shape, positional relationship, etc., unless otherwise specified or limited in principle to a specific shape, positional relationship, etc. etc. is not limited.

(summary)
According to the first aspect shown in part or all of the above embodiments, the air blowing part includes a duct forming a blowing flow path through which the air blown toward the blowing target passes; a hole forming member forming a flat hole-shaped blowing hole for blowing air. The hole peripheral edge portion surrounding the blowout hole of the hole forming member includes a pair of long edge portions extending in opposition to each other and a space connected to both ends of the pair of long edge portions and having a larger distance than the space between the pair of long edge portions. It includes a pair of short edges facing each other with a gap between them. One of the pair of long edge portions and the pair of short edge portions is provided with a diffusion suppressing portion that suppresses diffusion of the airflow blown out from the blowout hole toward the blowout target.

According to the second aspect, the diffusion suppressing portion includes a plurality of fine holes that have an opening area smaller than that of the blowout hole, and that part of the airflow flowing from the blowout channel to the blowout hole is turned into a jet and blown out toward the blowout target. consists of In this way, if the diffusion suppressing portion is composed of a plurality of fine holes, the jet flow emitted from the plurality of fine holes functions as an air curtain that suppresses the diffusion of the airflow, thereby preventing the diffusion of the airflow to the target. Suppressed. As a result, it is possible to lengthen the reaching distance of the airflow blown out from the blowing hole toward the blowing target.

According to the third aspect, the diffusion suppressing portion includes a partition portion that forms a plurality of fine channels that guide part of the airflow flowing through the blowout channel to the plurality of fine holes. According to this, the blow-out channel and the plurality of fine channels are divided by the partition inside the duct. As a result, the airflow flowing through the plurality of fine channels can be blown out as a jet from the plurality of fine holes.

According to the fourth aspect, the plurality of fine channels have a contraction shape in which the channel area decreases from the upstream side to the downstream side of the air flow. In this way, if the plurality of fine channels are contracted, the flow velocity of the airflow flowing through the plurality of fine channels increases, so that high-speed jets can be blown out from the plurality of fine holes. This is particularly effective in lengthening the reaching distance of the airflow to be blown to the blowing target.

According to a fifth aspect, the blowout hole is a defroster blowout hole that blows air onto the windshield of the vehicle, opens into the instrument panel adjacent to the windshield, and blows air along the inner surface of the windshield. The hole forming member is installed in the instrument panel so that the pair of long edges of the blowout hole extend along the width direction of the vehicle. The diffusion suppressing portion is provided at the long edge portion that is farther from the windshield in the longitudinal direction of the vehicle than the pair of long edge portions.

When the airflow is blown out from the defroster blowout hole along the inner surface of the windshield, the windshield is present as a barrier in a portion close to the inner surface of the windshield, so that the airflow is less likely to diffuse. Therefore, it is not necessary to provide a diffusion suppressor at a location near the inner surface of the windshield.

In spite of this, when the diffusion suppressing portion is provided on the long edge portion with a short distance from the windshield, the diffusion suppressing portion itself acts as a ventilation resistance, resulting in an increase in pressure loss and a decrease in air volume. The decrease in the air volume can be resolved by enlarging the opening area of the blow-out hole, but in this case, there is a trade-off in that the size of the air blow-out portion is increased.

On the other hand, if the diffusion suppressing portion is provided at the long edge portion with a large distance from the windshield, it is difficult to reduce the air volume due to the above-mentioned increase in pressure loss and increase the size of the air blowing portion. It is possible to suppress the diffusion of the airflow in the direction away from the windshield. As a result, it is possible to sufficiently suppress fogging of the windshield by the airflow from the defroster blow-out hole.

According to a sixth aspect, the blowout hole is a face blowout hole that blows air upward from the seat cushion on which the vehicle occupant sits. The hole forming member is installed such that the pair of long edges of the blowout hole extends along the vertical direction of the vehicle. The diffusion suppressing portion is provided on the long edge portion that is farther from the seat cushion in the width direction of the vehicle than the pair of long edge portions.

According to this, the airflow blown out from the side near the seat cushion in the face blowing hole is diffused around the occupant seated on the seat cushion, so that the surroundings of the occupant can be made comfortable.

On the other hand, the diffusion suppressing portion suppresses the diffusion of the airflow blown out from the side of the face blowout hole farther from the seat cushion, so that the comfortable airflow around the occupant seated on the seat cushion is less likely to diffuse to the outside.

In this way, in the configuration in which the diffusion suppressing portion is provided on the long edge portion with a large distance from the seat cushion, the airflow from the face blowout hole concentrates around the occupant to provide comfortable air conditioning with high immediate effect. be able to.
Provides comfortable airflow.

According to a seventh aspect, the blowout hole is a face blowout hole that blows air upward from the seat cushion on which the vehicle occupant sits. The hole forming member is installed such that the pair of long edges of the blowout hole extends along the vertical direction of the vehicle. The diffusion suppressing portion is provided at the long edge portion having a short distance from the seat cushion in the width direction of the vehicle, out of the pair of long edge portions.

According to this, the diffusion suppressing portion suppresses the diffusion of the airflow blown out from the side of the face blowout hole near the seat cushion, so that a comfortable airflow can easily reach the occupant seated on the seat cushion.

On the other hand, the airflow blown out from the side of the face blowing hole farther from the seat cushion spreads around the occupant seated on the seat cushion, thereby making the surroundings of the occupant comfortable.

In this way, in the configuration in which the diffusion suppressing portion is provided at the long edge portion where the distance from the seat cushion is small, the air flow from the face blow-out hole can provide the occupant with a comfortable air-conditioning feeling, and the interior of the vehicle can be kept in a comfortable state. can be

According to the eighth aspect, the blowout hole is a foot blowout hole for blowing air downward of a seat cushion on which the vehicle occupant sits. The hole forming member is installed such that a pair of long edges extends along the front-rear direction of the vehicle. The diffusion suppressing portion is provided at the long edge portion that is farther from the seat cushion in the width direction of the vehicle than the pair of long edge portions.

According to this, the airflow blown out from the side near the seat cushion in the foot blow-out hole is diffused near the feet of the occupant seated on the seat cushion, so that the feet of the occupant can be made comfortable.

On the other hand, the diffusion suppressing portion suppresses the diffusion of the airflow blown out from the side of the foot blowout hole farther from the seat cushion, so that the comfortable airflow at the feet of the occupant seated on the seat cushion is less likely to diffuse to the outside.

In this way, in the configuration in which the diffusion suppressing portion is provided at the long edge portion with a large distance from the seat cushion, the airflow from the foot blowout holes can be concentrated at the feet of the occupant to provide comfortable airflow.

According to the ninth aspect, the blowout hole is a foot blowout hole for blowing air downward of the seat cushion on which the vehicle occupant sits. The hole forming member is installed such that a pair of long edges extends along the front-rear direction of the vehicle. The diffusion suppressing portion is provided at the long edge portion having a short distance from the seat cushion in the width direction of the vehicle, out of the pair of long edge portions.

According to this, the diffusion suppressing part suppresses the diffusion of the airflow blown out from the side of the foot blowout hole near the seat cushion, so that the comfortable airflow easily reaches the feet of the occupant seated on the seat cushion.

On the other hand, the airflow blown out from the side of the foot blowout hole farther from the seat cushion diffuses around the occupant seated on the seat cushion, thereby making the surroundings of the occupant comfortable.

In this way, in the configuration in which the diffusion suppressing portion is provided on the long edge portion where the distance from the seat cushion is small, the airflow from the foot blowout hole can provide the occupant with a comfortable air-conditioned feeling, and the interior of the vehicle can be kept in a comfortable state. can be

According to the tenth aspect, the blow-out hole is a cool-air blow-out hole for blowing cold air toward the confluence space where hot air and cool air merge inside the air-conditioning case of the air-conditioning unit. Among the pair of long edges, the diffusion suppressing part is provided in the long edge that is located inside the air conditioning case and is located at a short distance from the heating heat exchanger that generates warm air.

According to this, the cold air blown out from the cold air blowing holes is less likely to diffuse toward the heating heat exchanger, so that an unintended temperature rise of the cold air can be suppressed. According to this, the maximum cooling performance in the air conditioning unit can be improved.

50 Defroster blowout part (air blowout part)
51 Defroster duct (duct)
510 blow-out channel 52 defroster blow-out member (hole forming member)
520 Defroster blowout hole (outlet hole)
521 hole peripheral portion 522, 523 pair of long edges 524, 525 pair of short edges 53 diffusion suppressing portion

Claims (8)

An air blowing portion that blows air toward a blowing target,
a duct (51, 61, 71, 81) forming a blowout flow path (510, 610, 710, 123B) through which the air blown toward the blowout target passes;
A hole forming member (52, 62, 63) forming a flat hole-shaped blowout hole (520, 620, 630, 720, 730, 820) for blowing air toward the blowout target on the air flow downstream side of the duct , 72, 73, 82) and
A pair of long edges (522, 523, 622, 623, 632, 622, 623, 632, 633, 722, 723, 732, 733, 822, 823) and a pair of short electrodes connected to both ends of the pair of long edges and opposed to each other with a gap larger than that between the pair of long edges. edges (524, 525, 624, 625, 634, 635, 724, 725, 734, 735, 824, 825), wherein one of said pair of long edges and said pair of short edges , a diffusion suppressing portion (53, 66, 67, 76, 77, 83) is provided for suppressing diffusion of the airflow blown out from the blowing hole to the blowing target,
The blowout holes are face blowout holes (620, 630) for blowing air upward from a seat cushion (Sc) on which a vehicle occupant sits,
The hole forming member (62) is installed such that the pair of long edges (622, 623, 632, 633) of the blowout hole extends along the vertical direction of the vehicle,
The diffusion suppressing portions (66, 67) are provided in the long edge portions (623, 633) of the pair of long edge portions that are farther from the seat cushion in the width direction of the vehicle. Department. An air blowing portion that blows air toward a blowing target,
a duct (51, 61, 71, 81) forming a blowout flow path (510, 610, 710, 123B) through which the air blown toward the blowout target passes;
A hole forming member (52, 62, 63) forming a flat hole-shaped blowout hole (520, 620, 630, 720, 730, 820) for blowing air toward the blowout target on the air flow downstream side of the duct , 72, 73, 82) and
A pair of long edges (522, 523, 622, 623, 632, 622, 623, 632, 633, 722, 723, 732, 733, 822, 823) and a pair of short electrodes connected to both ends of the pair of long edges and opposed to each other with a gap larger than that between the pair of long edges. edges (524, 525, 624, 625, 634, 635, 724, 725, 734, 735, 824, 825), wherein one of said pair of long edges and said pair of short edges , a diffusion suppressing portion (53, 66, 67, 76, 77, 83) is provided for suppressing diffusion of the airflow blown out from the blowing hole to the blowing target,
The blowout holes are face blowout holes (620, 630) for blowing air upward from a seat cushion (Sc) on which a vehicle occupant sits,
The hole forming member (62) is installed such that the pair of long edges (622, 623, 632, 633) of the blowout hole extends along the vertical direction of the vehicle,
The diffusion suppressing portions (66, 67) are provided in the long edge portions (622, 632) of the pair of long edge portions that are located at a short distance from the seat cushion in the width direction of the vehicle. Department. An air blowing portion that blows air toward a blowing target,
a duct (51, 61, 71, 81) forming a blowout flow path (510, 610, 710, 123B) through which the air blown toward the blowout target passes;
A hole forming member (52, 62, 63) forming a flat hole-shaped blowout hole (520, 620, 630, 720, 730, 820) for blowing air toward the blowout target on the air flow downstream side of the duct , 72, 73, 82) and
A pair of long edges (522, 523, 622, 623, 632, 622, 623, 632, 633, 722, 723, 732, 733, 822, 823) and a pair of short electrodes connected to both ends of the pair of long edges and opposed to each other with a gap larger than that between the pair of long edges. edges (524, 525, 624, 625, 634, 635, 724, 725, 734, 735, 824, 825), wherein one of said pair of long edges and said pair of short edges , a diffusion suppressing portion (53, 66, 67, 76, 77, 83) is provided for suppressing diffusion of the airflow blown out from the blowing hole to the blowing target,
The blowout holes are foot blowout holes (720, 730) for blowing air downward of a seat cushion (Sc) on which a vehicle occupant sits,
The hole forming member (72) is installed such that the pair of long edges (722, 723, 732, 733) extends along the longitudinal direction of the vehicle,
The diffusion suppressing portions (76, 77) are provided in the long edge portions (723, 733) of the pair of long edge portions that are farther from the seat cushion in the width direction of the vehicle. Department. An air blowing portion that blows air toward a blowing target,
a duct (51, 61, 71, 81) forming a blowout flow path (510, 610, 710, 123B) through which the air blown toward the blowout target passes;
A hole forming member (52, 62, 63) forming a flat hole-shaped blowout hole (520, 620, 630, 720, 730, 820) for blowing air toward the blowout target on the air flow downstream side of the duct , 72, 73, 82) and
A pair of long edges (522, 523, 622, 623, 632, 622, 623, 632, 633, 722, 723, 732, 733, 822, 823) and a pair of short electrodes connected to both ends of the pair of long edges and opposed to each other with a gap larger than that between the pair of long edges. edges (524, 525, 624, 625, 634, 635, 724, 725, 734, 735, 824, 825), wherein one of said pair of long edges and said pair of short edges , a diffusion suppressing portion (53, 66, 67, 76, 77, 83) is provided for suppressing diffusion of the airflow blown out from the blowing hole to the blowing target,
The blowout holes are foot blowout holes (720, 730) for blowing air downward of a seat cushion (Sc) on which a vehicle occupant sits,
The hole forming member (72) is installed such that the pair of long edges (722, 723, 732, 733) extends along the longitudinal direction of the vehicle,
The diffusion suppressing portions (76, 77) are provided in the long edge portions (722, 732) of the pair of long edge portions that are located at a short distance from the seat cushion in the width direction of the vehicle. Department. An air blowing portion that blows air toward a blowing target,
a duct (51, 61, 71, 81) forming a blowout flow path (510, 610, 710, 123B) through which the air blown toward the blowout target passes;
A hole forming member (52, 62, 63) forming a flat hole-shaped blowout hole (520, 620, 630, 720, 730, 820) for blowing air toward the blowout target on the air flow downstream side of the duct , 72, 73, 82) and
A pair of long edges (522, 523, 622, 623, 632, 622, 623, 632, 633, 722, 723, 732, 733, 822, 823) and a pair of short electrodes connected to both ends of the pair of long edges and opposed to each other with a gap larger than that between the pair of long edges. edges (524, 525, 624, 625, 634, 635, 724, 725, 734, 735, 824, 825), wherein one of said pair of long edges and said pair of short edges , a diffusion suppressing portion (53, 66, 67, 76, 77, 83) is provided for suppressing diffusion of the airflow blown out from the blowing hole to the blowing target,
The air blowing holes target a confluence space (127) where warm air and cold air merge inside the air conditioning case (12) of the air conditioning unit (10), and blow cool air toward the confluence space. (820) and
Among the pair of long edge portions (822, 823), the diffusion suppressing portion is the long edge portion located inside the air conditioning case and having a short distance from the heating heat exchanger (16) that generates hot air. Air blower provided at (822) . The diffusion suppressing portion has an opening area smaller than that of the blowout hole, and a plurality of fine holes (531, 661, 661, 531, 661, 671, 761 , 771, 831 ). The diffusion suppressing part includes a partition part (533) forming a plurality of fine channels (532) that guide part of the airflow flowing through the blowout channel to the plurality of fine holes (531). 7. The air blowing part according to claim 6 . 8. The air blowing part according to claim 7 , wherein the plurality of fine channels have a contraction shape in which the channel area decreases from the upstream side to the downstream side of the air flow.

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