JPS5833048A - Structure of fluid blow-off port - Google Patents

Abstract

PURPOSE:To enable to generate the straight forward stream of air by a method wherein in the titled structure in which the blow-off direction of the air from the fluid blow-off port of an air conditioner is changed, the stream of air deflected to the maximum degree by deflecting plates is caused to adhere to the walls of a fluid passage to thereby prevent the loss of air pressure. CONSTITUTION:A pair of deflecting plates 11a and 11b having rocking shafts 12a and 12b extending along the opposing left and right wall plates (the walls of the fluid passage) 2a and 2b within a fluid blow-off port F are arranged opposite to each other. These deflecting plates 11a and 11b are linked together through a drive mechanism 13. Further, the opposing wall plates 2a and 2b extending from the positions of the deflecting plates 11a and 11b up to the open end of the fluid blow-off port are made to have a length L sufficent for causing the air deflected maximum by the deflecting plates to adhere to the wall plates 2a and 2b, whereby the wall plates 2a and 2b are enlarged to prevent the loss of air pressure and a straight forward stream of air is generated to thereby increase he quantity of air blown-off from the blow-off port F.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a fluid outlet structure in which the direction of air blown from a fluid outlet in an air conditioner or the like can be changed.

Generally, in vehicles equipped with an air conditioner, the temperature-controlled air formed by the air conditioner is distributed to the vehicle interior K11l<1, for example, approximately at the center of the front of the instrument panel 1, as shown in 1m. Fluid outlets F are formed on both sides.

, 0110 Fluid outlet 1 - In order to make the temperature control inside the vehicle more comfortable, the fluid outlet! A type that allows you to change the direction of the air blowing out from the conventional fluid outlet is provided. For example, as shown in d1 2nd WJ and 3rd WJK, a cylindrical frame 2 with openings in the front and back is formed, and a part of the wall plate 2a on either the left or right side of this frame 2 [, the pivot 3] is formed. The wall plate 2bK facing the deflection plate 4 may be formed with a projection 5 projecting into the flow path. In the case of the above-mentioned type, when the fluid outlet 1 also deflects the outflow air to the left in the figure, it is sufficient to rotate the deflection plate 4 toward the left. Fukiyamaguchi! The wind passing through the interior is narrowed down by the presence of the protrusion 5, and the deflection plate 4
With 41C attached, it becomes deflected to the left.9
Further, when the air blown from the fluid outlet r is made to travel straight, it is blown out forward with the deflecting plate 4 attached to the wall plate core and the plate 2bK, respectively.

However, in such a conventional fluid outlet structure, since the protrusion 5 protrudes into the flow path, the protrusion 5 becomes the fluid outlet, especially in straight flow. There was a risk that the spider would provide resistance to the air blowing out, causing a pressure loss and reducing the amount of air output accordingly. In addition, if the degree of turbulence of the fluid flow in the flow path is high, even if the deflection plate 4 is simply rotated in the deflection direction, the fluid may not adhere to the deflection plate 4, and the deflection The deflection operation of the fluid by the plate 4 becomes unstable. Therefore, in order to stabilize the fluid deflection operation to some extent, K must be made thicker than the tII rear section of the frame 2 relative to the width of the fluid outlet 10, and the fluid outlet structure has a vertically elongated shape. ts, its scope of application is limited.

Furthermore, in the conventional example described above, since the wall plate 2aK was only provided with the deflection plate 4 on either the left or right side of the frame 2, the blowing direction of the blowing air could not be crimped straightly. One side deflection Kl of O jump until right deflection! Therefore, there was a problem in that it was not possible to secure a wide deflection angle of the O blowing air into the passenger compartment.

This was made from the viewpoint of the present inventor, and its purpose is to make a pair of deflection plates having pivots face each other along 1 mK of opposing flow paths in the fluid outlet. At the same time, the deflection plate is interlocked with the drive mechanism, and the flow path from the deflection plate to the end of the outlet opening is arranged so that at least when the deflection plate is at maximum deflection, the air that is deflected by the deflection plate is directed onto the flow path wall. The fluid outlet structure has a fluid outlet structure that reduces the pressure loss in the straight flow and maintains the volume of blowout air by reducing the length of the fluid that can be attached, and also ensures that the blowout air adheres to the wall surface and deflects over a wide range. There is a lot of people to offer.

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

In the embodiment shown in FIGS. 4 and 5, the fluid outlet r
is a pair of left and right wall plates 1 m, lb and a pair of upper and lower wall plates 1
It has a frame body 2 which is opened in the front and rear, and is composed of a pair of deflection plates 1 and 2d.
1! , llb.

In this embodiment, the deflection plate lla tllb is a pivot 12m that extends in the vertical direction along the left and right wall plates 2m and 2bK and is pivotally supported by the upper and lower wall plates 2c*2d.

12b, and is rotatable about the pivot shafts 1za, 12b as the center of rotation. These deflection plates 11 & 11 ha are each formed in the same shape and are designed to block the flow path 10.

The deflection plate tta t 11b is interlocked with the drive mechanism 13, and is provided on the upper surface of the frame 20 and the upper wall plate 2C.
The cam 14 is supported by a shaft 18 erected approximately at the center of C, the deflection plate 11a, and the pivot shaft 12a.

12bK fixed cam 7 that engages with the cam 14
Swinging rod with lowers 158 and 15b formed at the tip
It is composed of sa and 16b. As shown in FIG. 5, the cam 14 is composed of a plate material 9 having a substantially elongated oval shape. It is designed so that it can rotate more than it can rotate. Further, the cams 7, 4, 1sa, 15b have a substantially semicircular shape. And Cam 7 Olower 158,
15b if, they are biased by the spring 19 so that vhK approaches each other. From the open state of the deflection plates 111 and 11b, the deflection plates 11
Rotate the field in the closing direction before the deflection plate 11b, and conversely rotate the operation knob 11 in the summer clockwise direction. The deflection plates 11m and llb are rotated asymmetrically except when completely opened or completely closed.

Further, the above-mentioned upper plate 2C is provided with a fastening part,
A plate spring 21 is screwed onto this fastening piece 20, and this plate spring 21 presses the periphery of the operating knob 1T. Therefore, the operating knob 11 is held at a predetermined rotational position by the frictional force generated at the contact portion between the leaf spring 21 and the operating knob 17.

Furthermore, the pivots 12a of the deflection plates 11a and llb.

12b and the length L of the O flow path wall from the outlet end to the outlet air
The length is set to allow the wind deflected by the deflection plates 11a and 11b to adhere to the flow channel wall surface at the time of maximum deflection. In addition, in the 4th WJ, 25m and 25b are swinging rods 1sa to lock the springs 19, respectively.
, 16b K is a raised locking protrusion and a grill attached to the outlet opening end of the ZRA frame 20.

Therefore, when using the fluid outlet structure according to this embodiment to obtain a straight flow from the fluid outlet 1, the operation knob 1T is set at a predetermined position as shown in FIG. 5(a). Cam 140 farthest point from axis 18? , , P, ga* A
y t av -15a e 15b K so that they touch. At this time, the cam follower 151,
Deflection plates 111 and 11b coaxial with 15b are the left and right wall plates 2
m, lb K is held in the opposed state, and the flow path 10 width of the fluid outlet '1 becomes the maximum width (pmax). For this reason, the temperature-controlled air sent out from the air conditioner is
Deflector plate tta, fluid outlet without being affected by 11bK! It can also be obtained as a straight flow. Also, fluid outlet 1
In order to obtain a left deflection flow, as shown in FIG. 5(b)K, the operating knob 1T can be appropriately rotated in the 9 clockwise directions to rotate the cam 14 in the 9 clockwise directions. Due to the busy schedule, the rotation angle of the cam 7 subordinate 15aO3ifl is always larger than the 0 rotation angle of the cam follower 15b, so the deflection plates 11a and 11b are set to the shape shown in the 5th WJ(b)K, and the flow path let passes through. The blowing air is caused by the deflection plate 11.
a, 11b, resulting in a left deflection flow. That is, the left wall plate 2''s deflection plate 11 and the left outermost streamline 23 of the blowing air
The inflow and outflow of air in the space G formed between G and t is as follows:
Outflow amount go due to entrainment of air flow and outlet opening end (dimension x) between the left wall plate 2a and the left outermost streamline 231
The inflow amount gl of the air inside the vehicle is considered to be tP, etc., but if the deflection angle ψ of the blowing air is small, the inflow and outflow of air in the space G, that is, the outflow amount g of air. and air inflow g
t is equal to the pressure in the space G to maintain it at atmospheric pressure.
aK will not adhere to it, and will be emitted into the vehicle interior with the left hand coms vector t. From this state, when the cam 14 is further rotated clockwise as shown in FIG. 5(C)K, the deflection plate 1ta closes half of the flow path 10, and the deflection plate 11b is fixed at a predetermined position. At this time, the deflection angle of the airflow is determined by the regulation of the deflection plate 11b. becomes larger. In the open state, the amount of air flowing in X from the open end of the air outlet decreases, and the amount gi of air flowing into the space G decreases. As a result, in the space G, the outflow amount of air exceeds the inflow amount gt of air, and the pressure in the space G becomes a negative pressure state, and the airflow passing through the flow path 10 is directed to the exit end of the left wall plate. It adheres to nearby areas and is ejected into the passenger compartment as a left-most flame stream. It has been experimentally confirmed that the fluid is stable even when there are disturbances in the fluid adhesion behavior, fluid pressure fluctuations, and velocity distribution. Furthermore, 1 above operation knob 1T
When the cam 14 is rotated in the clockwise direction as shown in Fig. 5 @), the cam 7, 4, 15! , 1
5b company cam 140 closest point CL-Q from axis 18
Contact with *. In this state, the deflection plate 11m,
11b is set to block the flow path 10, and the blowing out of the air flow is stopped.

Conversely, when the cam 14 is rotated counterclockwise from the state shown in Figure 1 (Figure 5), the cam followers 15a, 15b move while engaging with the cam 14, and the deflection plates 11a,
llb sequentially transitions to the states shown in FIGS. 5(c), 5(b) and 5(a).

Also, 5th W (a) Turn the cam 14 clockwise from the 0 state>
When rotated in the direction, the cam 7 lowerer tsa t 15
b is the sW! i←)-(f)*(g)K As shown, the deflection plates tta l l move while engaging with the respective cams 14.
Rotate lb. In other words, the blowing air from the flow path 10 is obtained as a rightward deflection flow as shown in FIG.
The maximum rightward deflection flow is obtained in the state shown in Figure (f). In the state shown in FIG. 5-), the flow path 10 is
k, and the blowing of the air flow is stopped.

In the above embodiment, the deflection plates 111 and 11b are both formed in the same shape, but the shape is not necessarily limited to this, and for example, as shown in FIG. 11a I 11b may have different lengths. In this case, the length La of the flow path wall from the deflection plate 11 to the end of the outlet opening and the length Lb of the flow path wall from the deflection plate 11b to the end of the outlet opening are set to desired values. Mori. Further, in the above embodiment, the deflection plates 11a and 11b
However, the structure is not limited to this, and for example, as shown in FIG. Of course, it is also possible to use a narrowing structure.

Furthermore, in the above embodiment, the drive mechanism 13 is composed of the drive mechanism 13, the cam 14, and the cam 7 lowers 151 and 15b.
Not limited to this, other known mechanical,
Alternatively, you may use O for the electrical configuration.

Furthermore, in the above embodiment, the deflection plates 111 and 11b are arranged in symmetrical positions, but they may also be arranged in symmetrical positions in the vertical direction. Further, the structure of the fluid outlet according to the present invention,
Of course, it can be applied to a wide range of applications other than those installed in vehicles.

As explained above, the fluid outlet groove i according to the present invention
! According to No. 1IIc, a pair of deflection plates having pivots are arranged opposite to each other along the attracting and directed channel walls in the fluid outlet, and the deflection plates are interlocked via a drive mechanism, and the deflection plates are The air that is deflected by the deflection plate at least when the maximum deflection is applied to the flow path wall up to the end of the outlet opening is directed to the flow path I! The length is made so that it can be attached to the flow path without being affected by the deflection plate, ensuring a large flow path width and preventing pressure loss.
On the one hand, it is possible to obtain a straight flow, thereby increasing the amount of air blown out in a straight flow, and on the other hand, the deflection by the pair of deflection plates and the fluid adhesion to the channel wall are ensured, and the amount of air blown out is increased accordingly. Not only can a large deflection angle be ensured, but also the deflection operation of the blowing air is stable even when there is turbulence in the fluid flow. For this reason, there is no need to unnecessarily increase the length of the frame 20 in the longitudinal direction in order to stabilize the deflection operation of one blowout air as in the past, and this allows for freedom in designing the fluid suita structure. It is possible to increase the degree and expand the scope of its application.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an example of the arrangement position of a conventional fluid outlet structure, and Figs. 2 and 3 are a perspective view showing an example of a conventional fluid outlet structure. ! ! It is a cross-sectional view taken along the line A in I, and the second
No. 3 is an explanatory diagram showing the operation when obtaining a leftward deflection flow, and No. 4 WJ (51) is an exploded perspective view showing an embodiment of the fluid outlet structure according to the present invention. FIG. 4(b) is a sectional view showing an embodiment of the fluid outlet structure according to the present invention, and FIG. ) is the 5th Wi when obtaining a straight flow, 5th Wi
(C) is the case where maximum left deflection flow is obtained, Figure 5 (d) and @
5 (f) is an explanatory diagram showing the respective operating states when the flow path is closed, when the 5th WJ (e) Id obtains a right-right counterflow, and when the maximum force deflection flow is obtained. and seventh
The figures are explanatory diagrams showing different modifications of the deflection plates. !゛′″Wall body blowout outlet L°°°Flow path length 2M,
2b--Left and right wall plates (channel walls) 11a, l1b-deflection plates 12a, 12b--Pivot 13, shaft drive) hawk"", cam 1sal 15b-Cam 7 Lower 11...Operating knob patent applicant Nissan Motor Co., Ltd. Same Applicant Tokyo Metrology Co., Ltd. No. 511(a) No. 511(C) Figure 5(9) 1 No. 6IllI

Claims (1)

[Scope of Claims] 1) A pair of deflecting plates having pivots are arranged opposite to each other along the fluid outlet ^O facing each other, and the deflecting plates are interlocked via a drive mechanism, and the above-mentioned A fluid outlet structure characterized in that a channel wall from a deflection plate to an end of the outlet opening has a length that allows the air deflected by the deflection plate to adhere to the channel wall surface at least when the deflection plate is at maximum deflection. 2) The drive mechanism is characterized by comprising a cam that rotates integrally with the operating knob, and a cam 7 lower that engages with the cam and is connected to the pivot of each deflection plate. A fluid outlet structure according to claim 1.