JPH0463979B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fluid outlet structure in an air conditioner or the like, and particularly relates to an improvement in a type of fluid outlet structure incorporating a wind direction guide plate for deflecting air blown from the fluid outlet. .

Generally, in a vehicle equipped with an air conditioner, as shown in FIG. And fluid outlet F is opened on both sides. (For example, refer to "Automotive Engineering Complete Book Volume 13, Passenger Car Body" published by Sankaido.) In such a fluid outlet F, in order to make temperature control in the passenger compartment more comfortable, the direction of the blowing air inside the fluid outlet F is adjusted. There is a type that incorporates an air outlet unit 2 that changes the air flow.
As shown in FIG. 2, a pair of left and right wall plates 3a, 3b
It has a frame body 3 which is open at the front and rear and is made up of a pair of upper and lower wall plates (not shown), and nozzle walls 4a and 4b are provided on both rear sides of the frame body 3 to protrude inwardly, and a nozzle is installed. By forming the section 4, an opening 5 is formed on the downstream side of the nozzle section 4 and is expanded more rapidly than the nozzle diameter, and the nozzle section 4 and the opening 5 form a fluid blowing passage 6. On the other hand, a wind direction guide plate 8 having a pivot shaft 7 in the vertical direction is swingably attached to approximately the center of the nozzle part 4, and the wind direction guide plate 8 is formed to be swingable from side to side by a drive mechanism 9. It has been done. The drive mechanism 9 is, for example, incorporated in a storage chamber 10 formed between the nozzle wall 4b and the wall plate 3b, and its specific configuration is operated by a control signal from a control circuit 11. The wind direction guide plate 8 is composed of an electromagnet 12, an operating rod 13 that is attracted to and moves by the electromagnet 12 when the electromagnet 12 is energized, and a restoring spring 14 that returns the operating rod 13 to its original position when the electromagnet 12 is not energized. It is connected to the operating rod 13 via a connecting rod 15. Further, in FIG. 1, numeral 16 is a louver for adjusting the wind direction in the vertical direction.

Therefore, in such a fluid outlet structure, for example, when the drive mechanism 9 is turned on and off to swing the wind direction guide plate 8 left and right, the fluid passing through the nozzle part 4 is regulated by the wind direction guide plate 8. The water is ejected into the opening 5 alternately on the left and right, and the opening 5
After being largely deflected left and right alternately due to the Coanda effect, the air is blown out from the blow-off opening end into the vehicle interior as a left-right oscillating flow. Note that when the drive mechanism 9 is turned off or turned on and the wind direction guide plate 8 is tilted and fixed to the left or right, the wind direction guide plate 8
Due to the Coanda effect, the fluid passing through the fluid blowing passage 6 is blown into the vehicle interior as a left deflection flow or a right deflection flow.

However, in such a conventional fluid outlet structure, although it was possible to greatly deflect the outlet air due to the Coanda effect, the nozzle portion 4
Since the nozzle diameter was constant, the amount of air blown was inevitably limited, and there was a consideration that the cooling efficiency during rapid cooling etc. would be reduced by that amount.

The present invention has been made in view of the above points, and its object is to provide a fluid outlet having a built-in wind direction guide plate, in which at least a part of the nozzle wall forming the nozzle portion is removed. It is composed of a movable plate, and by moving this movable plate to change the nozzle diameter, it ensures the deflection of the blowing air, while also increasing the blowing air volume during rapid cooling, etc., improving cooling efficiency, etc. An object of the present invention is to provide a fluid outlet structure that allows

Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings.

In the first embodiment shown in FIGS. 3 to 5,
The basic configuration of the outlet unit 2 is similar to the conventional one, in which a fluid outlet passage 6 is formed by a nozzle part 4 and an opening 5 that is provided on the downstream side of this nozzle part 4 and that opens more rapidly than the nozzle diameter. A wind direction guide plate 8 is attached to the frame body 3 and approximately the center of the nozzle part 4 so as to be able to swing left and right, and is swingable left and right by a drive mechanism 9.
However, unlike the conventional one, one 4a of the nozzle walls 4a and 4b forming the nozzle portion 4 is constituted by a movable plate 20.

In this embodiment, the movable plate 20 has a pivot shaft 21 along one of the side wall plates 3a, and can rotate a quarter turn about the pivot shaft 21 from a state in close contact with the side wall plate 3a. The end of the movable plate 20 on the rotating shaft side is always kept in close contact with the side wall plate 3a when the movable plate 20 is rotated. The operation mechanism for the movable plate 20 may be, for example, a rotary operation knob (not shown) connected to the pivot shaft 21 via a bevel gear mechanism, or an operation rod that can move back and forth in the front and back directions and protrude radially from the pivot shaft 21. It consists of a piece connected to an engaging piece, etc. In addition, the nozzle wall 4b
As in the conventional case, is formed to protrude inward to form a storage chamber 10 containing the drive mechanism 9 between it and the side wall plate 3b.

Therefore, in the fluid outlet structure according to this embodiment, the nozzle diameter of the nozzle section 4 is determined by the position of the free rotation end of the movable plate 20 and the nozzle wall 4b. The nozzle diameter is maximum when the movable plate 20 is in close contact with the side wall plate 3b, and is minimum when the movable plate 20 is perpendicular to the side wall plate 3b. For this reason, for example, when it is desired to obtain a large amount of airflow during rapid cooling or rapid heating, as shown in FIG. 3
The nozzle diameter of the nozzle portion 4 may be maximized by setting the inclination angle θ relative to b to zero). However, in this state, the fluid passing through the nozzle part 4 is ejected into the opening part 5 with its flow direction regulated according to the operation of the wind direction guide plate 8, but the nozzle diameter of the nozzle part 4 is Since it is close to the width of the opening 5, the Coanda effect is reduced accordingly, and as a result, the fluid jetted into the opening 5 is jetted into the vehicle interior with almost no deflection. Also, the fourth
As shown in the figure, as the movable plate 20 is rotated to gradually increase the inclination angle θ of the movable plate 20, the nozzle diameter of the nozzle portion 4 gradually becomes smaller. At this time, the amount of air blown out that is proportional to the nozzle diameter of the nozzle section 4 gradually decreases, but the Coanda effect increases as the nozzle diameter of the nozzle section 4 becomes smaller.
Therefore, the fluid passing through the nozzle part 4 is ejected into the opening part 5 in a state in which the flow direction is regulated according to the operation of the wind direction guide plate, and then inside the opening part 5, the flow direction is regulated due to the Coanda effect. It is largely deflected and blown out into the vehicle interior as a left deflection flow, a right deflection flow, or a left and right oscillating flow. As shown in FIG. 5, when the inclination angle θ of the movable plate 20 is set to 90° (maximum), the nozzle diameter of the nozzle part 4 becomes the minimum, so the amount of air blown out becomes the minimum; , the Coanda effect becomes maximum, and the deflection angle or swing angle of the blown air blown into the vehicle interior becomes maximum accordingly.

In this embodiment, the movable plate 20 is configured as a flat plate. For example, as shown in FIG. When configured with the curved plate portion 23 formed in a substantially streamlined shape toward the rear, it becomes possible to reduce the flow path resistance in the fluid blowing passage 6, thereby preventing loss of blowing air volume, and Generation of wind noise on the movable plate 20 is suppressed. Further, in the above embodiment, the movable plate 20 only constitutes one nozzle wall 4a;
For example, as shown in FIG. 7, if the drive mechanism 9 including the electromagnet 12 etc. is installed outside the side wall plate 3b and both nozzle walls 4a and 4b are configured as movable plates 20a and 20b, each movable plate 20a, When the inclination angle of the nozzle 20b with respect to the side wall plates 3a and 3b is set to zero, the nozzle diameter of the nozzle part 4 becomes larger than the maximum nozzle diameter of the above embodiment, and a correspondingly large amount of blowing air is ensured, making it easier to cool during rapid cooling. The cooling and heating efficiency during rapid heating and cooling is further improved compared to the above embodiments.

Next, a second embodiment shown in FIGS. 8 to 10 will be described.

In this embodiment, the air outlet unit 2 includes a pair of left and right wall plates 3a, 3b, a pair of upper and lower wall plates 3c,
A pair of movable plates 20a and 20b constituting the nozzle part 4 are attached to the frame body 3, and a wind direction guide plate 8 is installed approximately in the center of the nozzle part 4. It has been placed.

In this embodiment, unlike the first embodiment, the wind direction guide plate 8 can be manually swung left and right, and the movable plates 20a and 20b are connected to the wind direction guide plate 8 through an interlocking mechanism 24. It has become possible to link with That is, the wind direction guide plate 8
As shown in FIG. 9, it has a pivot 7 that is pivotally supported by upper and lower wall plates 3c and 3d, and a base plate 25 is fixed to this pivot 7. A knob 26 is provided, and by sliding this operating knob 26 in the left and right directions, the wind direction guide plate 8 is configured to swing left and right. On the other hand, the movable plates 20a and 20b are
Pivotally supported by upper and lower wall plates 3a, 3b, and side wall plates 3a,
It has pivots 21a and 21b at positions along 3b. The interlocking mechanism 24 includes guide slits 27a and 27b, each of which is formed in the base plate 25 and is composed of an air vibration arc section A and an engagement arc section B, each of which has the pivot shaft 7 as its center of rotation, and movable plates 20a and 20b.
Engagement pieces 2 fixed to the lower ends of the pivots 21a, 21b
8a, 28b, and the guide slits 27a,
Engagement pins 29a, 2 that slidably engage with 27b
9b. Note that 30, 30a and 30b are the wind direction guide plate 8, the movable plates 20a and 2
These are screws for fixing 0b to the respective pivots 7, 21a and 21b.

Therefore, suppose that in the fluid outlet structure according to this embodiment, when the operation knob 26 is set to the neutral position, the state as shown in FIG. 10A is reached. That is, the side wall plates 3 of the movable plates 20a, 20b
The inclination angle θ with respect to a, 3b (not shown in FIG. 10 A, B, and C) is zero, and the wind direction guide plate 8 is in a state parallel to each movable plate 20a, 20b. At this time, the engaging pins 29a, 29b are both located at the boundary between the idle circular arc portion A and the engaging circular arc portion B of the guide slits 27a, 27b. In this state, the nozzle diameter of the nozzle section 4 is at its maximum, and the air blown out from the outlet unit 2 has the maximum amount of air and is obtained as a straight flow. When the operation knob 26 is moved to the left from this state, the base plate 25 rotates clockwise about the pivot shaft 7, as shown in FIG. 10B. Therefore, the wind direction guide plate 8 rotates clockwise, that is, to the left, in accordance with the rotation angle of the base plate 25, and regulates the wind direction inside the outlet unit 2. At this time, as the base plate 25 rotates, the guide slit 27a27b
However, since the engagement pin 29a slides within the air vibration arc portion A of the guide slit 27a, the engagement pin 29a moves around the guide slit 2.
7a and maintains a predetermined position, the movable plate 20a maintains the same position as in FIG. From the dynamic relationship,
The engagement pin 29b is restrained by the guide slit 27b and moves in a predetermined direction, and the engagement piece 28b rotates by that amount, and the movable plate 20b moves to a position having an inclination angle θ. At this time, the nozzle diameter of the nozzle part 4 is narrowed down to some extent, and the fluid passing through the nozzle part 4 is deflected to the left by the wind direction guide plate 8 and the Coanda effect, and is blown out into the vehicle interior as a left deflected flow. Ru. Conversely, if you move the operating knob 26 to the right,
As shown in FIG. 10C, according to the same principle as in FIG. is deflected to the right and blown out into the vehicle interior as a right deflected flow.

In this second embodiment, the wind direction guide plate 8 is operated manually, but the same drive mechanism 9 as in the first embodiment may be used. In addition, the interlocking mechanism 24
However, it is not necessarily limited to those shown in the above embodiments, and any known mechanism such as a gear mechanism or a cam mechanism may be appropriately selected. Furthermore, the design of the interlocking operation between the wind direction guide plate 8 and the movable plates 20a and 20b may be changed as appropriate.

In addition, in each of the above embodiments, the movable plates 20, 20
a, 20b are both rotatably attached to the frame 3, but are not necessarily limited to this; for example, they may be attached so as to be slidable in a direction across the fluid blowing passage 6, The nozzle diameter may be made variable. Further, in each of the above embodiments, the wind direction guide plate 8 and the movable plates 20, 20a, 20b are provided in the air outlet unit 2.
However, they may be provided directly within the fluid outlet F. Furthermore, the wind direction regulating direction of the wind direction guide plate 8 is not necessarily limited to the left-right direction, but may be the up-down direction, etc. Furthermore, although each of the above embodiments shows a fluid outlet structure for a vehicle, it goes without saying that the present invention can be applied to a fluid outlet structure for indoor use.

As described above, according to the fluid outlet structure according to the present invention, in the fluid outlet having a built-in wind direction guide plate, at least a part of the nozzle wall forming the nozzle portion is formed of a movable plate. , we moved this movable plate to make the nozzle diameter variable, so
When the nozzle diameter is set to a narrow setting, the Coanda effect is effectively exerted, and the deflection of the blowing air is ensured.If the nozzle diameter is set to a large size, the blowing air volume increases accordingly, which is useful during rapid cooling or sudden heating. It is possible to improve the efficiency of heating and cooling at times.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the arrangement position of a fluid outlet in a vehicle, FIG. 2 is a sectional view taken along the line - 1 in FIG. 1, showing an example of a conventional fluid outlet structure, and FIG. A sectional view similar to FIG. 2 showing the first embodiment of the outlet structure and showing the state at the maximum nozzle diameter,
Fig. 4 is a sectional view similar to Fig. 3 showing a state in which the movable plate moves and the nozzle diameter is narrowed; Fig. 5 is a sectional view similar to Fig. 3 showing a state when the nozzle diameter is at its minimum; 6 and 7 are sectional views showing different modifications of the first embodiment, FIG. 8 is a perspective view showing a second embodiment of the fluid outlet structure according to the present invention, and FIG. 9 is a diagram showing the wind direction. An exploded perspective view showing the specific configuration of the guide plate, movable plate, and interlocking mechanism. Figure 10A is a schematic diagram showing the operating state of the interlocking mechanism when the operation knob is in the neutral position. Figure 10B is a diagram showing the operating state of the interlocking mechanism when the operation knob is moved to the left. FIG. 10C is a schematic diagram showing the operating state of the interlocking mechanism when the operating knob is moved to the right. F...Fluid outlet, 2...Blower outlet unit, 3
... Frame body, 4 ... Nozzle part, 4a, 4b ... Nozzle wall, 5 ... Opening, 6 ... Fluid blowing passage, 8 ...
...Wind direction guide plate, 9... Drive mechanism, 13... Operating rod, 20, 20a, 20b... Movable plate, 24...
Interlocking mechanism, 27a, 27b...guide slit,
28a, 28b...Engaging piece, 29a, 29b...
Engagement pin.

Claims (1)

[Claims] 1. A fluid blowout passage is formed by the nozzle portion and an opening provided on the downstream side of the nozzle portion and which expands more rapidly than the nozzle diameter, and this fluid blowout passage is provided with a wind direction guide plate. In a fluid outlet structure in which the fluid outlet is swingably mounted and the direction of the air blowing from the fluid outlet passage is regulated by the wind direction guide plate,
A fluid outlet structure characterized in that at least a part of the nozzle wall forming the nozzle portion is constituted by a movable plate, and the nozzle diameter is made variable by moving the movable plate. 2. The fluid outlet structure according to claim 1, wherein the wind direction guide plate is connected to a drive mechanism having a reciprocating operating rod. 3. According to claim 1 or 2, the movable plate is configured to engage with the wind direction guide plate through an interlocking mechanism and operate in conjunction with the wind direction guide plate. Fluid outlet structure.