JP2020152228A - Thin register for air conditioning - Google Patents

Abstract

To reduce pressure loss while suppressing interference with a peripheral component without making a widening part long in the flowing direction of air conditioning.SOLUTION: A retainer 12 includes a retainer body 14 having a blowout port 15 at a downstream end, duct connection parts 21 having an inflow port at an upstream end. The blowout port 15 is composed of a pair of short side parts 16 and a pair of long side parts 17 to form a rectangular shape. Two duct connection parts 21 are provided in a direction along the long side parts 17. Inflow ports of adjacent duct connection parts 21 are separated from each other in the direction going along the long side parts 17. Each duct connection part 21 has a contraction flow part 23 in which the dimension LH of a ventilation flue in a direction along the short side part 16 gradually becomes short as it approaches the retainer body 14 at a boundary part with the retainer body 14. Each contraction flow part 23 is provided with a widening part 25 which gradually becomes wider in a direction along the long side part 17 as it goes to a downstream side to be connected to the retainer body 14.SELECTED DRAWING: Figure 1

Description

The present invention relates to a thin register for air conditioning that blows air for air conditioning sent through a blower duct into a room from a rectangular outlet.

In a vehicle, an air-conditioning register that blows air-conditioning air sent through an air duct into the vehicle interior is built into the instrument panel. This air-conditioning register generally has the basic structure shown in FIGS. 7 to 10, including a thin register for air-conditioning described later. The air-conditioning register includes a retainer 52 having a ventilation passage 53 for air-conditioning air A1. The retainer 52 includes a retainer main body 54 and a duct connecting portion 61 provided on the upstream side of the retainer main body 54 in the flow direction of the air conditioning air A1. The retainer body 54 has an outlet 55 at the downstream end in the flow direction. The duct connecting portion 61 is a place where the air duct is connected, and has an inflow port 62 at the upstream end in the flow direction.

In the above-mentioned air-conditioning register, the air-conditioning air A1 sent through the air-conditioning duct flows into the retainer 52 from the inflow port 62 of the duct connection portion 61, flows through the ventilation passage 53, and then blows the retainer main body 54. It is blown into the passenger compartment from the exit 55.

On the other hand, in recent years, the development of a vehicle (autonomous driving vehicle) in which the driving operation is automatically performed on behalf of the driver has been promoted, but this automatic driving vehicle eliminates the need for devices and parts related to manual steering, and is an instrument. The vertical and depth dimensions of the ment panel are shortened. Along with this, it is expected that the air conditioning register will be required to be thinner.

Therefore, a type of air-conditioning register (hereinafter referred to as "thin air-conditioning register") in which the dimensions of the air outlet 55 differ greatly between the vertical direction and the horizontal direction has been considered. 7 to 10 above show the thin register 50 for air conditioning. As shown in FIG. 8, in the air-conditioning thin register 50, the air outlet 55 intersects the pair of short side portions 56 and both short side portions 56, and each has a pair of lengths longer than each short side portion 56. It is composed of a side portion 57 and has a rectangular shape.

In the thin register 50 for air conditioning, it is preferable to form the inflow port 62 in the same rectangular shape as or close to the air outlet 55 in order to ensure the blowing performance. In this case, the duct connecting portion 61 is formed in the shape of a flat square tube long in the direction along the long side portion 57, as shown by the alternate long and short dash line in FIG. This is because the duct connection portion 61 does not have a portion where the cross-sectional area of the flow path of the ventilation passage 53 changes abruptly in the flow direction, and there is no portion where the shape changes significantly, so that the pressure loss is less reduced.

However, various electronic devices and harnesses are arranged inside the instrument panel. When the inflow port 62 is long in the direction along the long side portion 57 as described above and the duct connection portion 61 is long in the same direction as described above, the duct connection portion 61 and the air duct connected to the duct connection portion 61 are the electronic devices. A new problem arises that interferes with surrounding parts such as harnesses.

Therefore, as shown in FIGS. 8 and 9, as the duct connecting portion 61, the dimension LW in the direction along the long side portion 57 is shorter than the outlet 55, and the dimension LH in the direction along the short side portion 56 is the outlet. Those having an inflow port 62 longer than 55 are used. Further, it is conceivable to arrange the inflow port 62 at the central portion of the retainer main body 54 in the direction along the long side portion 57 (see, for example, Patent Document 1).

In this case, as shown in the solid line in FIG. 7 and FIGS. 8 to 10, the duct connecting portion 61 has a condensing portion 63 at a boundary portion with the retainer main body 54. In the contracted flow portion 63, the dimension LH of the ventilation passage 53 in the direction along the short side portion 56 gradually becomes shorter toward the downstream side in the flow direction. Further, the flow contraction portion 63 also serves as a widening portion that widens toward the downstream side in the flow direction in the direction along the long side portion 57 and connects to the retainer main body 54. By configuring the condensing portion 63 as described above, in the condensing portion 63, the cross-sectional area of the flow path of the ventilation passage 53 becomes the same at any location in the flow direction.

Japanese Unexamined Patent Publication No. 2008-1343

In the thin air-conditioning register 50 shown in FIGS. 7 to 10, spaces S1 are formed on both sides of the duct connecting portion 61 in the direction along the long side portion 57, and therefore electronic devices and harnesses are arranged in these spaces S1. As a result, it is possible to suppress interference between the duct connecting portion 61 and the air duct and the electronic device, the harness, and the like.

However, it is difficult for the air-conditioning air A1 to flow so as to spread to both sides in the same direction in both side portions 63b in the direction along the long side portion 57 of the widening portion (condensation portion 63). In the widened portion, the air-conditioning air A1 easily flows in the central portion 63a in the direction along the long side portion 57, and does not easily flow in the both side portions 63b. This is because the shape of the widened portion suddenly changes in both side portions 63b. Therefore, among the widening portions, there is a problem that the pressure of the air conditioning air A1 is high in the central portion 63a and the pressure is low in the side portions 63b, resulting in a large pressure loss.

It is possible to suppress an increase in pressure loss by widening the widened portion so that the dimension in the direction along the long side portion 57 gradually becomes longer toward the downstream side in the flow direction. However, in this case, the dimension LD of the widening portion in the flow direction becomes long. Therefore, it becomes difficult to incorporate the air-conditioning thin register 50 into the instrument panel whose dimensions in the depth direction tend to be shortened as described above.

The present invention has been made in view of such circumstances, and an object of the present invention is to reduce pressure loss while suppressing interference with surrounding parts without lengthening the widening portion in the flow direction of air conditioning air. The purpose is to provide a thin register for air conditioning that can be made smaller.

The thin air-conditioning register that solves the above problems includes a retainer having a ventilation path for air-conditioning air sent through a ventilation duct, and the retainer has an outlet at a downstream end in the flow direction of air-conditioning air. The retainer main body is provided on the upstream side of the retainer main body in the flow direction, the air duct is connected, and a duct connection portion having an inflow port at the upstream end in the same direction is provided, and the air outlets are paired. A thin register for air conditioning that has a rectangular shape and is composed of a pair of long side portions that intersect with each other and are longer than each short side portion. , A plurality of duct connection portions are provided in a direction along the long side portion, and the inflow ports of adjacent duct connection portions are separated from each other in a direction along the long side portion, and each duct connection portion is in a direction along the short side portion. Has a contraction portion at the boundary portion with the retainer main body, in which the dimension of the ventilation passage in the above is gradually shortened as it approaches the retainer main body, and each contraction portion has a long side toward the downstream side in the flow direction. It is provided with a widening portion that gradually widens in the direction along the portion and connects to the retainer main body.

According to the above configuration, the downstream portion of the blower duct in the flow direction of the air conditioning air is branched into the same number as the plurality of duct connection portions in the retainer. Each branch of the air duct is connected to the corresponding one of the plurality of duct connections.

Here, the two inlets of the adjacent duct connection portions are separated from each other in the direction along the long side portion of the outlet. Therefore, in a state where the branch portion of the blower duct is connected to the corresponding duct connection portion, a space is created at least between the adjacent duct connection portions and between the adjacent branch portions of the blower duct. Therefore, if the components around the thin register for air conditioning are arranged in these spaces, interference between the duct connection portion or the branch portion of the air duct and the peripheral components is unlikely to occur.

Further, since a plurality of duct connecting portions are provided, the widened portions of each duct connecting portion are dispersed in the direction along the long side portion. Therefore, it is possible to shorten the dimensions of each widening portion in the flow direction as compared with the case where there is only one duct connecting portion.

Further, in the flow contraction portion for each duct connection portion, the dimension of the ventilation path in the direction along the short side portion gradually becomes shorter as it approaches the retainer main body. Moreover, each widening portion gradually widens toward the downstream side in the flow direction along the long side portion. Therefore, in the flow constriction portion, the cross-sectional area of the flow path of the ventilation path can be made to be the same at any position in the flow direction.

By the way, the air-conditioning air flowing through each branch of the ventilation duct flows into the retainer from the inflow port of each duct connection portion, and flows through the widening portion of the contracted flow portion of each duct connection portion. At the central portion of the widening portion in the direction along the long side portion, the air conditioning air tends to flow straight to the downstream side in the flow direction. On the other hand, in the side portion in the direction along the long side portion and the widened portion, the air conditioning air tends to flow while changing the direction so as to spread in the widened direction. This is because, as described above, the widening portion gradually widens toward the downstream side in the flow direction along the long side portion, and the dimension of each widening portion in the flow direction is short.

Therefore, one duct connection having an inflow port whose dimension along the long side is shorter than the outlet and whose dimension along the short side is longer than the outlet is in the direction along the long side. Unlike the case where it is arranged in the central portion of the retainer main body (Patent Document 1), the phenomenon that the flow of air conditioning air suddenly changes in the widening portion of each contraction portion is unlikely to occur. The difference in pressure between each widened portion in the direction along the long side is reduced. In each widening portion, the air conditioning air flows smoothly with the same pressure in a state of spreading over the entire region in the direction along the long side portion. As a result, the pressure loss is small.

In the thin register for air conditioning, two duct connection portions are provided, and the widening portion for each duct connection portion is closer to the widening portion of the adjacent duct connection portion in the direction along the long side portion. It is preferable that only the width is widened.

As described above, two duct connection portions are provided, and the widening portion of each duct connection portion is widened only toward the side closer to the widening portion of the adjacent duct connection portion, so that the retainer has a long length. A large space is created only in the central part in the direction along the side part. Therefore, if the components around the thin register for air conditioning are arranged in this space, the interference between the duct connection portion or the branch portion of the ventilation duct and the peripheral components can be effectively suppressed.

Further, in this case, when the air conditioning air flows into the retainer from the inflow port of each duct connection portion, it flows through the contracted flow portion. Of the widening portions in each contracted flow portion, the air conditioning air tends to flow straight to the downstream side in the above flow direction at the central portion in the direction along the long side portion and the side portion on the side far from the adjacent widening portion. .. On the other hand, in each widening portion, the side portion on the side closer to the adjacent widening portion flows while changing the direction so that the air conditioning air spreads toward the adjacent duct connecting portion. Also in this case, since the widening portion gradually widens toward the downstream side in the flow direction in the direction along the long side portion and the dimension of each widening portion in the flow direction is short, the air conditioning air easily flows.

In the thin register for air conditioning, the widening portion for each duct connection portion is a flat inclined wall portion that inclines at a constant angle with respect to the same flow direction so that the downstream side in the flow direction approaches the adjacent widening portion. It is preferable to have.

By forming an inclined wall portion that satisfies the above conditions in each widening portion, the widening portion gradually widens by a fixed amount in the direction along the long side toward the downstream side in the flow direction to form the retainer main body. Connect. Therefore, in the side portion of the widened portion in the direction along the long side portion and the widened portion, the air conditioning air can easily flow while changing the direction more smoothly so as to spread in the widened direction.

According to the thin register for air conditioning, the pressure loss can be reduced while suppressing interference with surrounding parts without lengthening the widening portion in the flow direction of the air for air conditioning.

The perspective view of the thin register for air-conditioning in one Embodiment. The front view of the thin register for air conditioning in one Embodiment. The rear view of the thin register for air conditioning in one Embodiment. A side view of a thin register for air conditioning in one embodiment. FIG. 2 is a cross-sectional view taken along the line 5-5 in FIG. FIG. 2 is a cross-sectional view taken along the line 6-6 in FIG. Top view of a conventional thin register for air conditioning. Front view of a conventional thin register for air conditioning. Rear view of a conventional thin register for air conditioning. Side view of a conventional thin register for air conditioning.

Hereinafter, an embodiment embodied in a thin register for air conditioning for a vehicle will be described with reference to FIGS. 1 to 6.
In the following description, the traveling direction (forward direction) of the vehicle is the front, the reverse direction is the rear, and the height direction is the vertical direction. Further, regarding the vehicle width direction (horizontal direction), the direction is defined based on the case where the vehicle is viewed from the rear.

In the passenger compartment, an instrument panel is provided in front of the front seat of the vehicle. Various electronic devices and harnesses are arranged inside the instrument panel. Further, the thin register 10 for air conditioning shown in FIG. 1 is incorporated in the central portion, the side portion and the like in the left-right direction of the instrument panel. The main function of the air-conditioning thin register 10 is to blow out the air-conditioning air A1 sent from the air-conditioning device through the air duct 11 shown by the two-point chain line in FIG. 6 into the vehicle interior.

As shown in FIGS. 1 and 6, the outer shell portion of the thin air-conditioning register 10 is composed of a retainer 12. The retainer 12 has a ventilation path 13 for air conditioning air A1 that is sent through the ventilation duct 11. Here, regarding the flow direction of the air conditioning air A1, the side closer to the air conditioner is referred to as "upstream", "upstream side", etc., and the side far from the air conditioner is referred to as "downstream", "downstream side", etc. ..

As shown in FIG. 6, the downstream portion of the ventilation duct 11 is branched into a plurality of (two in the present embodiment) branch portions 11a having a tubular shape. Both branch portions 11a are arranged side by side in the left-right direction.
As shown in FIGS. 1 and 6, the retainer 12 includes a retainer main body 14 that constitutes a downstream portion thereof, and a duct connecting portion 21 that constitutes an upstream portion. The retainer main body 14 has an air outlet 15 for air conditioning air A1 at the downstream end.

As shown in FIGS. 1 and 2, the outlet 15 includes a pair of short side portions 16 and a pair of long side portions 17 each longer than each short side portion 16. Both short side portions 16 extend substantially in the vertical direction while being separated from each other in parallel. Both long side portions 17 extend in the left-right direction, which is a direction orthogonal to both short side portions 16, in a state of being separated from each other in parallel. The air outlet 15 having such a configuration has a horizontally long rectangular shape that is elongated in the horizontal direction rather than the vertical direction.

The duct connection portion 21 is a portion to which the branch portion 11a of the air duct 11 is connected, and two duct connection portions 21 are provided in accordance with the branch portion 11a. Both duct connecting portions 21 are arranged side by side in the left-right direction like the branch portion 11a. As shown in FIGS. 3 and 6, each duct connection portion 21 has an inflow port 22 for air conditioning air A1 at an upstream end. The inflow ports 22 of both duct connecting portions 21 are separated from each other in the left-right direction. The left-right dimension LW of each inflow port 22 is set to a value smaller than half of the dimension LW of the outlet 15 in the same direction. The vertical dimension LH of each inflow port 22 is set to a value larger than the vertical dimension LH of the outlet 15 (see FIG. 2).

As shown in FIGS. 1, 4 and 5, the boundary portion of each duct connecting portion 21 with the retainer main body 14 is composed of a condensing portion 23. Each contraction portion 23 is formed so that the dimension LH of the ventilation passage 13 in the vertical direction gradually becomes shorter as it approaches the retainer main body 14.

Each condensing portion 23 includes a monospaced portion 24 forming an upstream portion thereof and a widening portion 25 forming a downstream portion. Each monospaced portion 24 is formed so that the dimensions in the left-right direction are constant with respect to the flow direction. As shown in FIGS. 1 and 6, each widening portion 25 is located between each monospaced portion 24 and the retainer main body 14, and gradually widens in the left-right direction toward the downstream side and is connected to the retainer main body 14. There is. In the present embodiment, each widening portion 25 is widened only toward the side closer to the widening portion 25 of the adjacent duct connecting portion 21 in the left-right direction.

Further, as shown in FIG. 6, each widening portion 25 has a flat inclined wall portion 26 that is inclined at a constant angle α with respect to the flow direction so as to approach the adjacent widening portion 25 toward the downstream side. There is. The downstream ends of both widening portions 25 (both inclined wall portions 26) are connected to each other at the central portion of the retainer main body 14 in the left-right direction.

As shown in FIGS. 2, 5 and 6, the lateral fins 30 and 31 that change the vertical direction of the air conditioning air A1 blown from the air outlet 15 into the passenger compartment in the retainer main body 14 Vertical fins 32 that change the direction in the left-right direction, shut dampers 33 that block the blowout of air-conditioning air A1 from the air outlet 15, and the like are arranged.

Next, the action and effect of the thin register 10 for air conditioning of the present embodiment configured as described above will be described.
As shown in FIGS. 3 and 6, both inflow ports 22 of adjacent duct connection portions 21 are separated from each other in the left-right direction. Therefore, when the branch portion 11a of the blower duct 11 is connected to the corresponding duct connection portion 21, a space S1 is generated between the adjacent duct connection portions 21 and between the adjacent branch portions 11a of the blower duct 11. .. Therefore, by arranging the peripheral parts (various electronic devices, harnesses, etc.) of the air-conditioning thin register 10 in this space S1, it is possible to avoid interference between the duct connection portion 21 and the branch portion 11a and the peripheral parts. ..

In the present embodiment, two duct connecting portions 21 are provided, and the widening portion 25 for each duct connecting portion 21 is widened only toward the side closer to the widening portion 25 of the adjacent duct connecting portion 21. Therefore, a large space S1 is generated only in the central portion of the retainer 12 in the left-right direction. Therefore, by arranging the peripheral parts in the space S1, interference between the duct connecting portion 21 or the branch portion 11a and the peripheral parts can be effectively suppressed.

Further, since a plurality (two) duct connecting portions 21 are provided, the widening portions 25 for each duct connecting portion 21 are dispersed at a plurality of locations (two locations) in the left-right direction. Therefore, it is possible to shorten the dimension LD (see FIG. 1) of each widening portion 25 in the flow direction as compared with the case where the duct connecting portion 21 is one. Therefore, the thin register 10 for air conditioning can be incorporated into an instrument panel having a short dimension in the depth direction.

Further, as shown in FIGS. 5 and 6, in the condensing portion 23 for each duct connecting portion 21, the dimension LH of the ventilation passage 13 in the vertical direction gradually shortens as it approaches the retainer main body 14. Moreover, the widening portion 25 in each contraction portion 23 gradually widens toward the adjacent widening portion 25 side toward the downstream side. Therefore, in each of the contracted flow portions 23, the cross-sectional area of the flow path of the ventilation passage 13 can be made the same at any position in the flow direction.

By the way, the air conditioning air A1 generated by the air conditioner flows through the air duct 11. The air-conditioning air A1 flowing through each branch portion 11a of the air blowing duct 11 flows into the retainer 12 from the inflow port 22 of the duct connection portion 21 to which the branch portion 11a is connected. The air-conditioning air A1 flows through the equal width portion 24 and the widening portion 25 in order in each contraction portion 23. In each monospaced portion 24, the air conditioning air A1 tends to flow straight to the downstream side. The same applies to the central portion (the portion on the downstream side of the equal width portion 24) in the left-right direction of each widening portion 25. Even on the side of each widening portion 25 that has not been widened, that is, the side portion far from the adjacent widening portion 25, the air conditioning air A1 tends to flow straight to the downstream side.

On the other hand, in each widening portion 25, in the portion wider than the equal width portion 24 (the side portion on the side closer to the adjacent widening portion 25), while changing the direction so that the air conditioning air A1 spreads in the widening direction. Easy to flow. This is because, as described above, each widening portion 25 gradually widens toward the adjacent widening portion 25 side toward the downstream side, and the dimension LD of each widening portion 25 in the flow direction is short.

In particular, in the present embodiment, there is an inclined wall portion 26 that is inclined at a constant angle α with respect to the flow direction so that each widening portion 25 approaches the adjacent widening portion 25 toward the downstream side. Each widening portion 25 is gradually widened toward the adjacent widening portion 25 side by a fixed amount toward the downstream side, and is connected to the retainer main body 14. In the portion of the widening portion 25 that is wider than the equal width portion 24, it is easy to flow while changing the direction more smoothly so that the air conditioning air A1 spreads in the widening direction. The phenomenon that the flow of the air conditioning air A1 suddenly changes in the downstream portion of each duct connection portion 21 is unlikely to occur.

Therefore, as shown in FIGS. 7 to 10, one duct connection portion 61 having an inflow port 62 having a dimension LW shorter than the outlet 55 and a dimension LH longer than the outlet 55 is a retainer main body in the left-right direction. Unlike the case where it is arranged in the central portion of 54 (Patent Document 1 corresponds to this), the phenomenon that the flow of the air conditioning air A1 suddenly changes in the widening portion 25 is unlikely to occur. The difference in pressure between the widening portions 25 in the left-right direction becomes small. In each widening portion 25, the air-conditioning air A1 flows smoothly at the same pressure in a state of spreading over the entire region in the left-right direction. As a result, the pressure loss is small.

As shown in FIGS. 5 and 6, the air-conditioning air A1 that has flowed through each duct connection portion 21 flows through the retainer main body 14. At this time, if the ventilation passage 13 is opened by the shut damper 33, the air conditioning air A1 passes through the shut damper 33, the vertical fins 32, the horizontal fins 31, 30 and the like. The air-conditioning air A1 is blown into the vehicle interior from the air outlet 15 after the flow direction is changed by the vertical fins 32, the horizontal fins 31, 30, and the like. Further, although not shown, when the ventilation passage 13 is closed by the shut damper 33, the flow of the air conditioning air A1 is stopped by the shut damper 33, and the air conditioning air A1 is not blown out from the air outlet 15.

According to this embodiment, the following effects can be obtained in addition to the above.
-In the conventional thin register 50 for air conditioning, if the inflow port 62 is formed in the same rectangular shape as the outlet 55 or in a rectangular shape close to it, the duct connection portion 61 is shown by a chain double-dashed line in FIG. , It is formed in the shape of a flat rectangular cylinder long in the direction along the long side portion 57, and the surface area of the outer surface of the duct connecting portion 61 is increased. The same applies to the air duct connected to the duct connecting portion 61.

When low temperature air conditioning air A1 is sent from the air conditioner through the air duct to the air conditioning thin register 50, dew and water droplets adhere to the outer surface of the duct connection portion 61, the air duct, etc., and the surrounding electrons. It may affect the equipment.

In this regard, as shown in FIG. 6, in the present embodiment in which a plurality (two) duct connecting portions 21 are provided, the surface area of the outer surface of the duct connecting portions 21 can be made smaller than the above. The same applies to the branch portion 11a of the air duct 11 connected to the duct connecting portion 21. Therefore, it is possible to suppress the adhesion of dew and water droplets and make it difficult to affect the surrounding electronic devices.

In addition, the above-described embodiment can also be implemented as a modified example in which this is modified as follows.
-Three or more duct connection portions 21 may be provided in a state of being arranged in the left-right direction.

The widening portion 25 for each contraction portion 23 may be widened not only on the side approaching the adjacent widening portion 25 but also on the side away from the adjacent widening portion 25 in the left-right direction.
The downstream end of each widening portion 25 (inclined wall portion 26) may be separated from the downstream end of the adjacent widening portion 25 (inclined wall portion 26) in the left-right direction.

The inclined wall portion 26 for each widening portion 25 is obliquely downstream, provided that it intersects the flow direction diagonally as a whole so that the inclined wall portion 26 for each widening portion 25 approaches the adjacent widening portion 25 toward the downstream side instead of a flat shape. It may be curved so as to bulge toward the side, or it may be curved so as to dent diagonally upstream.

The pair of long side portions 17 at the outlet 15 is not limited to those orthogonal to the pair of short side portions 16, and may intersect diagonally in a state close to orthogonality.
The thin air-conditioning register 10 can also be applied to a thin air-conditioning register in which a rectangular outlet 15 is arranged so as to be vertically long.

-The thin air-conditioning register 10 can also be applied to a thin air-conditioning register provided in a location different from the instrument panel in the vehicle interior.
The thin register 10 for air conditioning can be widely applied not only to a vehicle but also to a vehicle as long as it can blow out the air A1 for air conditioning sent from the air conditioner through the air duct 11.

10 ... Thin register for air conditioning, 11 ... Blower duct, 12 ... Retainer, 13 ... Ventilation path, 14 ... Retainer body, 15 ... Air outlet, 16 ... Short side, 17 ... Long side, 21 ... Duct connection, 22 ... Inflow port, 23 ... Duct part, 25 ... Widening part, 26 ... Inclined wall part, A1 ... Air conditioning air, α ... Angle.

Claims (3)

Equipped with a retainer that has a ventilation path for air conditioning air that is sent through the air duct.
The retainer is provided on the upstream side of the retainer main body having an air outlet at the downstream end in the flow direction of the air conditioning air and the retainer main body in the flow direction, and the air duct is connected and the upstream end in the same direction. With a duct connection with an inflow port
The air-conditioning thin register having a rectangular shape in which the air outlet is composed of a pair of short sides and a pair of long sides that intersect each short side and are longer than each short side. ,
A plurality of the duct connection portions are provided in the direction along the long side portion.
The inflow ports of the adjacent duct connection portions are separated from each other in the direction along the long side portion.
Each duct connection portion has a condensing portion at the boundary portion with the retainer main body, in which the dimension of the ventilation passage in the direction along the short side portion gradually becomes shorter as it approaches the retainer main body.
Each condensing portion is a thin register for air conditioning provided with a widening portion that gradually widens toward the downstream side in the flow direction along the long side portion and connects to the retainer main body. Two duct connections are provided.
The thin register for air conditioning according to claim 1, wherein the widened portion for each duct connection portion is widened only toward the side closer to the widened portion of the adjacent duct connecting portion in the direction along the long side portion. The widening portion of each duct connection portion has a flat inclined wall portion that inclines at a constant angle with respect to the same flow direction so that the downstream side in the flow direction approaches the adjacent widening portion. The thin register for air conditioning according to 1 or 2.