JP3364793B2 - Air blowing adjustment register - Google Patents

Description

Detailed Description of the Invention

[0001]

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

[0002]

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

However, in an air conditioning duct for an automobile provided with this kind of air blowout adjusting 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 bend sharply when it is delivered from the air outlet 20 provided on the side of the duct. Therefore, 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 velocity distribution of the air flow discharged from the outlet 20 is slightly rightward from the center, that is, higher on the downstream side. Therefore, the direction D1 of the air flow is directed to the right of the direction D2 of the fins of the movable louver 23. Therefore, even if the angle of the movable louver 23 is adjusted and the wind direction is directed to the left side in FIG. 8, there is a problem that it is difficult to direct the wind direction in that direction.

Further, as shown in FIG. 8, the air flow flowing from the ventilation duct 21 to the air outlet 20 is a movable louver 23.
Since the fins are hit from diagonally behind the fins, an air flow separation phenomenon occurs on the outside of the fins, and there is a problem that pressure loss of the air flow and noise due to the air flow occur significantly.

[0005]

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

In this register, a plurality of deflecting plates are arranged at a half position upstream of the air outlet in the ventilation duct where the air outlet is located, with a plurality of deflecting plates being spaced at right angles to the ventilation direction in the duct. Although it is a structure, since the flat plate-shaped deflecting plate is simply fixed at a position perpendicular to the ventilation direction, when the deflecting plate is hit by the air flow, the air separation phenomenon also occurs on the back side of the deflecting plate, and as a result, However, there is a problem that noise and pressure loss occur to a considerable extent, and it is difficult to direct the airflow in the direction in which the movable louver is adjusted.

The present invention has been made in view of the above points, and suppresses separation of an air flow that tends to occur near the fins of the movable louver, reduces pressure loss and noise of the air flow, and adjusts the movable louver. It is an object of the present invention to provide an air-blowing adjustment register capable of accurately changing the air-blowing direction according to the direction.

[0008]

In order to achieve the above object, the air blow-out adjusting register of the present invention is mounted on a side portion of a ventilation duct and is used for blowing out air in a direction intersecting with the ventilation duct. A register, which is a register for adjusting the air blowout, in which a movable louver in which a plurality of fins are connected by a rod is provided at an air outlet in a barrel, a plurality of current changing plates are arranged on a rod of the movable louver at intervals. It is fixed so that it is inserted into the ventilation duct almost at right angles to the ventilation direction, the tip of the current-changing plate is gently bent so as to face the upstream side of the ventilation duct, and the plurality of current-changing plates in the ventilation duct It is characterized in that the height is formed higher toward the downstream side of the ventilation duct.

[0009]

In the air blow-out adjusting register having such a structure, when air is sent into the ventilation duct, the air flow reaching the register first hits the current-changing plate and smoothly moves along the curved surface of the louver. It can be smoothly bent in the direction of the air outlet, that is, at a substantially right angle to the ventilation direction of the duct. Then, when this bent air flow passes near the movable louver, it is guided by each fin, and the air is blown out in the direction in which the fins face. By the action of the current-changing 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 airflow is smoothly bent and blown in the direction of the fins without causing a separation phenomenon of the airflow.

Therefore, the blowing direction of the air flow blown out from the blow-out port coincides with the direction of the fins in accordance with the adjustment direction of the movable louver, and the air flow can be blown out in the adjusted direction. Further, since the separation of the air flow does not occur 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.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION 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 outlet adjustment register arranged at an air conditioning air outlet such as a ceiling of an automobile. In this register, as shown in FIG. 3, the movable louver 3 to which the current-changing plates 7 to 9 are attached is attached by fitting the frame body 4 into the barrel 1, and the movable louver 3 is provided in the barrel 1. The assembled body is rotatably assembled inside the retainer 2. Each member such as the barrel 1 is molded of thermoplastic synthetic resin.

The barrel 1 is formed in the shape of an elongated rectangular frame having a space inside, and the rotary shafts 1a are projectingly provided on the vertical surfaces of both ends thereof. The groove-shaped bearing portion 1b is formed at the arrangement intervals of 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 by a horizontal rod 6. The rod 6 has a current changing plate 7 to 9 which is a feature of the present invention. Is fixed with the inside (the inside of the duct when installed) facing.

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

As shown in FIG. 3, three current-changing plates 7 to 9 are fixed to the rod 6 so that the inside (the inside of the duct at the time of mounting) is directed, that is, at right angles to the axial direction of the rod. These current-changing plates 7 to 9 are formed by gently bending in an arc shape so that their tips are directed to the upstream side of the air flow in the ventilation duct 11. Further, the height (length) of the three current-changing plates 7 to 9 is formed differently so as to gradually become higher (longer) toward the downstream side in the ventilation duct 11 to be mounted.

As shown in FIG. 3, the movable louver 3 having the structure in which the plurality of fins 5 are connected by the rod 6 at a predetermined interval is fitted in the barrel 1 and the frame 4 is inserted from above.
Is fitted 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.
It is formed in the shape of a rectangular frame provided with a, and the inside is provided with recesses at both ends to which the rotary shafts 1a of both ends of the barrel 1 are fitted,
The barrel assembly is assembled so as to be rotatable about the rotation shaft 1a within a predetermined angle range (FIGS. 1 and 2).

As shown in FIGS. 6 and 7, in the register having the above-described structure, the retainer 2 is fixed by fitting the retainer 2 into the opening provided at the side of the ventilation duct 11 provided on the ceiling or the like of the interior of the automobile. Then it is installed. The air outlet 10 is formed in the inside space of the barrel 1 in the retainer 2 (the space in which the movable louver 3 is arranged).

The current-changing 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 ventilation direction, and the bent tip end thereof is the ventilation duct 11. Is arranged so that the height of the current-changing plates 7 to 9 becomes higher toward the downstream side.

As shown in FIGS. 6 and 7, the ventilation duct 11
When the air is sent from the left to the right, the air flow reaching the register hits the current-changing plates 7 to 9 and smoothly moves along the curved surfaces toward the air outlet 10 of the register, that is, the ventilation of the duct. Can be smoothly bent at a right angle to the direction. Then, when this bent airflow passes near the movable louver 3, it is guided by each fin 5, and the air is blown out in the direction in which the fin 5 faces.

In this way, the action of the current-changing plates 7 to 9 causes
Since the airflow in the ventilation duct 11 is smoothly directed toward the air outlet 10, as shown in FIG. 7, the wind velocity distribution of the airflow passing through the outlet 10 is averaged.
When passing through the movable louver 3, the airflow having the averaged wind velocity distribution is smoothly bent and blown out in the direction in which the fins 5 face without causing a separation phenomenon of the airflow.

Therefore, the blowing direction D4 of the air flow blown from the blowing port 10 coincides with the direction D3 of the fins 5 which is adjusted to the adjustment direction of the movable louver 3, and the air is blown in the adjusted direction. That is, in the direction in which the fins 5 of the movable louver 3 face, hold the handle 5c and move it to the rod 6
It can be changed by moving in the axial direction of
Since the airflow directed by the current-changing plates 7 to 9 toward the outlet 10 flows along the fins 5 without being separated,
Air can be blown out by matching the direction D3 of the fins 5 with the air blowing direction D4. Further, as described above, since the air flow is not separated 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 around its rotation axis 1a, and when it is desired to change the direction of the air outlet 10 to its width direction (short direction), the direction perpendicular to the plane of the paper of FIGS. 6 and 7. The barrel 1 can be rotated by moving the handle 5a to change the direction of the air outlet 10 in the width direction. At this time, the current changing plates 7 to 9 are also rotated to change the position. . Therefore, the action of bending the air flow of the ventilation duct 11 toward the air outlet 10 side similarly occurs, and regardless of the orientation of the barrel 1, the air flow is efficiently bent toward the air outlet 10 side, and the fins 5 of the movable louver 3 are formed. Air can be blown out in the direction along.

In the above embodiment, the three current transformer plates 7 to 7 are used.
Although 9 was used, in general, increasing the number and size of the current increases the air resistance, and decreasing the number and size of the current tends to decrease the current transformation effect. The number and size of the air outlet 10 should be within the range where the effect can be obtained.
And the inner diameter of the ventilation duct 11 and the like. Since the current-changing plates 7 to 9 rotate in the ventilation duct 11 as the barrel 1 rotates, the shape and size of the current-changing plates 7 to 9 do not interfere with the duct during the rotation. You need to decide

Further, since the three current changing 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 and changes. The positions of the flow plates 7 to 9 slightly move, but the moving width thereof is small, which does not cause a problem. Further, these current-changing plates 7 to 9 can be integrally molded with the rod 6, and if integrally molded,
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-changing plates are inserted into the ventilation duct inside the movable louver disposed in the air-blowing opening. And the ducts are arranged at right angles to the ventilation direction of the duct, and the tips of these current plates are gently bent toward the upstream side in the ventilation duct. 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 changing plate 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 separation phenomenon of the air flow when passing through the movable louver. The fins are smoothly bent and blown out, so the direction of the air flow is the same as the direction of the fins that matches the adjustment direction of the movable louver, and the air can be blown out in the adjusted direction. it can. Further, since the air flow is hardly separated around each fin of the movable louver, it is possible to minimize the pressure loss of the blown air flow and effectively reduce the noise of the air flow.

[Brief description of drawings]

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

FIG. 2 is a perspective view of the register seen from the back 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.

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

FIG. 6 is an enlarged cross-sectional view of a register attached to a ventilation duct.

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

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

[Explanation of symbols]

1-barrel 3-Movable louver 5-fin 6-rod 7 to 9-current-displacement plate 10-Air outlet 11-ventilation duct

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-59-32733 (JP, A) JP-A-4-116334 (JP, A) Actually open 61-162739 (JP, U) Actual-open Sho 61- 159733 (JP, U) Actual development Sho 62-135047 (JP, U) Actual development 3-124904 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B60H 1/34 F24F 13 / 08 F24F 13/068 F24F 13/06

Claims (2)

(57) [Claims] 1. An air blowout adjusting register which is mounted on a side portion of a ventilation duct and blows out air in a direction intersecting with the ventilation duct, wherein a movable louver having a plurality of fins connected by a rod is blown out of air in a barrel. In the air blowout adjusting register provided at the mouth, a plurality of current-changing plates are fixed on the rod of the movable louver at intervals in the ventilation duct at a substantially right angle to the ventilation direction, The tip of the current-changing plate is gently bent so as to face the upstream side of the ventilation duct, and the height of the plurality of current-changing plates in the ventilation duct is higher toward the downstream side of the ventilation duct. A register for adjusting the air blow-off characteristic. 2. The air-blowing adjusting register according to claim 1, wherein the barrel is mounted so as to be rotatable in a width direction thereof about a rotation shaft provided at both ends thereof.