JP2000255255A - Air blowout adjusting register - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air blowout adjusting register for reducing pressure losses of airflow and noises by restraining separation of airflow which is likely to occur near the fins of a movable louver and for accurately varying the direction of blowout of air according to the adjusted direction of the movable louver. SOLUTION: This air blowout adjusting register is mounted on a side portion of a ventilation duct 11 to blow off air in a direction intersecting to the ventilation duct 11. A movable louver 3 comprising a plurality of fins 5 interconnected by a rod 6 is provided in an air blow outlet opening 10 in a barrel 1. A plurality of deflector plates 7-9 are fixed on the rod 6 of the movable louver 3 in such a way as to be inserted at intervals into the ventilation duct 11 at approximately right angles to the direction of ventilation, with the tips of the deflector plates 7-9 gently curved so as to point upstream of the ventilation duct 11. A plurality of the deflector plates 7-9 are formed to get higher within the ventilation duct 11 toward the downstream side of the ventilation duct.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air outlet adjusting register used for an air outlet for ventilation or air conditioning in an automobile or the like, and more particularly to a barrel type outlet for blowing air in a direction intersecting the direction of air flow of an air duct. The present invention relates to an air blowing adjustment register.

[0002]

2. Description of the Related Art Conventionally, a register for adjusting air to be blown in a direction intersecting with a ventilation direction of a ventilation duct has been known as an air blowing adjustment register used for an air outlet for ventilation or air conditioning in a vehicle or the like. As shown in FIG. 8, this register has an air outlet 20 at the side of the ventilation duct 21.
Is formed, and a movable louver 23 for adjusting the wind direction, in which a plurality of fins are rotatably provided side by side at intervals, is provided. The angle of the movable louver 23 is adjusted, and Adjust the blowing angle of the blown air flow.

However, in a vehicle air-conditioning duct provided with this kind of air blowing adjustment register, the flow velocity of air in the duct is relatively high (7 to 12 m / s), and the air flow sent through the ventilation duct 21 is small. It is difficult to make a sharp turn when delivered from the air outlet 20 provided on the side of the duct. For this reason, even if the direction of each fin of the movable louver 23 is adjusted to the left side as shown in FIG. 8, the wind speed distribution of the air flow sent from the outlet 20 is slightly rightward from the center, that is, higher at the downstream side. In other words, the direction D1 of the airflow is more rightward than the direction D2 of the fin of the movable louver 23. Therefore, even if the angle of the movable louver 23 is adjusted to direct the wind direction to the left side in FIG. 8, there is a problem that it is difficult to direct the wind direction in that direction.

[0004] As shown in FIG. 8, the airflow flowing from the ventilation duct 21 to the air outlet 20 is transmitted to a movable louver 23.
Since the fins hit the fins obliquely from behind, the air flow is separated from the outside of the fins, and there is a problem that the pressure loss of the blast and the noise due to the air flow are large.

[0005]

Therefore, conventionally, in a register in which an air outlet is formed on a side portion of a ventilation duct and a movable louver for adjusting a wind direction having a plurality of fins is provided in the air outlet, There has been proposed a register having a structure in which a deflection plate is attached inside the air outlet (see Japanese Utility Model Publication No. 3-47163).

In this register, a plurality of deflecting plates are arranged at a half position on the upstream side of the air outlet in the ventilation duct where the air outlet is located, with a plurality of deflecting plates spaced at right angles to the ventilation direction in the duct. Although it is a structure, since the plate-shaped deflection plate is simply fixed at a position perpendicular to the ventilation direction, if airflow hits the deflection plate, air separation phenomenon also occurs on the back side of the deflection plate, There has been a problem that a considerable amount of noise and pressure loss occur, and it is difficult to direct the airflow in the direction in which the movable louver is adjusted.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and suppresses separation of an air flow which is likely to occur near a fin of a movable louver, reduces pressure loss and noise of the air flow, and adjusts the movable louver. An object of the present invention is to provide an air blowing adjustment register that can accurately change the air blowing direction in accordance with the direction.

[0008]

In order to achieve the above object, an air blowing adjustment register according to the present invention is mounted on a side of a ventilation duct, and adjusts the air blowing in a direction intersecting the ventilation duct. A register, in an air blowing adjustment register in which a movable louver in which a plurality of fins are connected by rods is provided at an air blowing port in a barrel, a plurality of current change plates are spaced apart on a rod of the movable louver. It is fixed in a form inserted substantially perpendicular to the ventilation direction in the ventilation duct, and the tip of the current transformer plate is gently bent so as to face the upstream side of the ventilation duct, and a plurality of current transformer plates in the ventilation duct The height is formed higher toward the downstream side of the ventilation duct.

[0009]

In the air blowing adjustment register having such a configuration, when air is sent into the ventilation duct, the airflow that has reached the register first strikes the current transformers and smoothly moves along the curved surfaces thereof. In the direction of the air outlet with the air flow, that is, substantially perpendicular to the direction of air flow through the duct. Then, when this bent air flow passes near the movable louver, it is guided by each fin, and air is blown out in the direction of the fin. Thus, by the action of the current-distribution plate,
Since the airflow in the ventilation duct is smoothly directed toward the air outlet, the wind speed distribution of the airflow passing through the outlet is averaged, and the airflow of the averaged wind speed distribution is:
When passing through the movable louver, the air flow is smoothly bent and blown in the direction of the fins without causing the separation phenomenon of the air flow.

Therefore, the direction of the air flow blown out from the blowout port matches the direction of the fins in accordance with the adjustment direction of the movable louver, and the air flow can be blown in the adjusted direction. Further, since there is no separation of the airflow around each fin of the movable louver, the pressure loss of the blown airflow can be minimized, and the noise of the airflow can be effectively reduced.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are perspective views of a barrel-type air-blowing adjustment register provided at an air-conditioning air blow-off port such as a ceiling of an automobile. As shown in FIG. 3, the movable louver 3 to which the current changing plates 7 to 9 are attached is mounted by fitting a frame 4 into the barrel 1, and the movable louver 3 is provided in the barrel 1. The assembled body is configured to be rotatably assembled inside the retainer 2. Each member such as the barrel 1 is formed of a thermoplastic synthetic resin.

The barrel 1 is formed in an elongated rectangular frame shape having a space inside, and a rotating shaft 1a is protruded from a vertical surface at both ends, and as shown in FIG. A groove-shaped bearing portion 1b is formed at an interval between the fins 5 of the movable louver 3. The movable louver 3 is configured by arranging a plurality of fins 5 at regular intervals and rotatably connecting them with a horizontal rod 6. Is fixed with the inside facing (the inside of the duct when mounted).

Each of the fins 5 has a pivot shaft 5a protruding from both ends of the fin body, and a connecting shaft 5b protruding laterally from a side of a protrusion provided at an inner central end. Formed. The rods 6 connecting the fins 5 are provided with bearing holes 6a at intervals of the fins 5, and the connection shafts 5b of the fins 5 are fitted into the bearing holes 6a. As shown in FIGS. 5 and 6, the fin 5 located at the center is provided with a handle 5c.

As shown in FIG. 3, three current transformer plates 7 to 9 are fixed to the rod 6 with the inside facing (inside of the duct at the time of mounting), that is, at right angles to the axial direction of the rod. These current change plates 7 to 9 are formed by gently bending them in an arc shape so as to direct their tips to the upstream side of the airflow in the ventilation duct 11. In addition, the heights (lengths) of the three current transformer plates 7 to 9 are formed differently so as to gradually increase (longer) toward the downstream side in the ventilation duct 11 to be mounted.

As described above, the movable louver 3 having a structure in which the plurality of fins 5 are connected at predetermined intervals by the rods 6 is fitted into the barrel 1 as shown in FIG.
Into the barrel 1 to form a barrel assembly. Then, the barrel assembly is fitted inside the retainer 2 as shown in FIG. The retainer 2 has a flange 2 around the outside.
a is provided in the shape of a rectangular frame provided with a concave portion at both ends to which the rotating shafts 1a at both ends of the barrel 1 are fitted,
The barrel assembly is assembled so as to be rotatable around a rotation shaft 1a within a predetermined angle range (FIGS. 1 and 2).

As shown in FIGS. 6 and 7, the retainer 2 is fixed by fitting the retainer 2 into an opening provided on a side portion of a ventilation duct 11 provided on a ceiling or the like of an automobile, as shown in FIGS. It is attached. The air outlet 10 is formed in the space inside the barrel 1 in the retainer 2 (the space where the movable louver 3 is provided).

The current change plates 7 to 9 fixed to the rod 6 of the movable louver 3 are located in the ventilation duct 11 in a state of being inserted at right angles to the direction of the ventilation. Are arranged so that the height of the current transformers 7 to 9 increases in the downstream direction.

As shown in FIG. 6 and FIG.
When the air is sent from left to right through the inside, the airflow that reaches the register hits the current transformers 7 to 9 and smoothly flows along the curved surfaces toward the air outlet 10 of the register, that is, the ventilation of the duct. Can be bent smoothly at right angles to the direction. Then, when the bent air flow passes near the movable louver 3, it is guided by each fin 5, and air is blown out in a direction toward the fin 5.

Thus, by the action of the current transformers 7 to 9,
Since the airflow in the ventilation duct 11 is smoothly directed toward the air outlet 10, the wind speed distribution of the airflow passing through the outlet 10 is averaged as shown in FIG.
When passing through the movable louver 3, the airflow having the averaged wind speed distribution is smoothly bent in the direction of the fin 5 and blown out without causing a separation phenomenon of the airflow.

Therefore, the blowing direction D4 of the airflow blown out from the blowing port 10 matches the direction D3 of the fin 5 in accordance with the adjusting direction of the movable louver 3, and the air is blown in the adjusted direction. In other words, the direction in which the fins 5 of the movable louver 3 face is that the user holds the handle 5c and
Can be changed by moving in the axial direction of
The air flow directed by the current change plates 7 to 9 toward the outlet 10 flows along the fins 5 without separating,
The air can be blown out by matching the direction D3 of the fin 5 with the blowout direction D4 of the air. Further, as described above, since there is no separation of the air flow around each fin 5 of the movable louver 3, it is possible to minimize the pressure loss of the blown air flow and effectively reduce the noise of the air flow. it can.

The barrel 1 is rotatable about its rotary shaft 1a. When it is desired to change the direction of the air outlet 10 in the width direction (transverse direction), a direction perpendicular to the paper surface of FIGS. By moving the handle 5a, the barrel 1 can be rotated to change the direction of the air outlet 10 in the width direction. At this time, the current change plates 7 to 9 also rotate to change the position. . For this reason, the effect of bending the air flow of the ventilation duct 11 toward the air outlet 10 similarly occurs, and the air flow is efficiently bent toward the air outlet 10 regardless of the direction of the barrel 1, and the fin 5 of the movable louver 3 is moved. The air can be blown out in the direction along.

In the above embodiment, the three current change plates 7 to
9 was used, but in general, increasing the number or size of the current transformer tends to increase the air resistance, and decreasing the number or size of the transformer tends to reduce the effect of the current transformer. The number and size of the air outlet 10
Can be arbitrarily determined according to the size of the ventilation duct 11, the inner diameter of the ventilation duct 11, and the like. Since the current transformers 7 to 9 rotate in the ventilation duct 11 with the rotation of the barrel 1, the shapes and sizes of the current transformers 7 to 9 are so small that the current transformers do not interfere with the ducts at the time of rotation. You need to decide.

Further, since the three current change plates 7 to 9 are fixed to the rod 6 of the movable louver 3, when the angle of the fin 5 of the movable louver 3 is changed, the rod 6 moves horizontally to change the position. Although the positions of the flow plates 7 to 9 slightly move, the movement width is small and does not cause any problem. In addition, these current transformer plates 7 to 9 can be integrally formed with the rod 6, and if integrally formed,
The number of parts can be reduced.

[0024]

As described above, according to the air blowing adjustment register of the present invention, a plurality of current change plates are inserted into the air duct inside the movable louver provided in the air blowing port. And in the direction perpendicular to the ventilation direction of the duct, the tip of these current transformers is formed by gently bending toward the upstream side in the ventilation duct, and the downstream current transformers have higher heights of the current transformers. Since the air flow is formed so as to increase in order, the air flow sent through the ventilation duct and reaching the register hits the current transformer plates and is smoothly bent along the curved surfaces toward the air outlet.

Therefore, the wind speed distribution of the air flow passing through the air outlet is averaged, and the air flow having the averaged wind speed distribution hardly causes the air flow separation phenomenon when passing through the movable louver. Since it is smoothly bent in the direction of the fin and blown out, the blowout direction of the air flow matches the direction of the fin according to the adjustment direction of the movable louver, and it is possible to blow air in the adjusted direction. it can. Further, since almost no separation of the air flow occurs around each fin of the movable louver, the pressure loss of the blown air flow can be minimized, and the noise of the air flow can be effectively reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a register according to an embodiment of the present invention.

FIG. 2 is a perspective view of the register as viewed from the rear side.

FIG. 3 is an exploded perspective view of a barrel portion of the register.

FIG. 4 is a perspective view when the barrel assembly is assembled to the retainer 2;

FIG. 5 is a sectional view taken along line VV of FIG. 4;

FIG. 6 is an enlarged sectional view of a register mounted on a ventilation duct.

FIG. 7 is an explanatory sectional view showing the operation of the register mounted on the ventilation duct.

FIG. 8 is an explanatory sectional view showing the operation of a conventional register.

[Explanation of symbols]

 1-barrel 3-movable louver 5-fin 6-rod 7-9-current transformer plate 10-air outlet 11-ventilation duct

Claims (2)

[Claims] 1. An air blowing adjustment register mounted on a side portion of a ventilation duct and blowing air in a direction intersecting the ventilation duct, wherein a movable louver having a plurality of fins connected by rods is blown into a barrel. In the air blowing adjustment register provided in the mouth, a plurality of current change plates are fixed on the rod of the movable louver in a form that is inserted into the ventilation duct at an interval substantially perpendicular to the ventilation direction, The tip of the current transformer plate is gently bent so as to face the upstream side of the ventilation duct, and the height of the plurality of current transformer plates in the ventilation duct is formed higher toward the downstream side of the ventilation duct. A register for adjusting air blowing. 2. The air blowing adjustment register according to claim 1, wherein said barrel is attached so as to be rotatable in a width direction thereof around rotation shafts provided at both ends thereof.