JPH0625369Y2 - Wind direction adjustment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION << Industrial Application Field >> The present invention relates to a wind direction adjusting device in an air conditioner of an automobile or the like.

<< Prior Art >> FIG. 3 shows an example of a conventional wind direction adjusting device used as a ventilator in an automobile. Reference numeral 1 denotes a ventilator case, which is formed into a substantially quadrangular tubular shape, and both side surfaces of an end portion 3 on the side of the air outlet 2 are formed into an arc shape. A drum 6 having a plurality of vertical louvers 4 and a plurality of horizontal louvers 5 is attached inside the blowout port 2. The drum 6 is a ventilation outlet 2 of the ventilator case 1.
A frame body along the inner circumference, and a plurality of vertical louvers 4 are integrally provided inside the frame body at equal intervals in the vertical direction. Further, each horizontal louver 5 is pivotally supported at a rear portion of each vertical louver 4 of the drum 6 at equal intervals in the horizontal direction by well-known means, and these horizontal louvers 5 are connected by a link (not shown) to each vertical louver. 4 can be integrally swung in the vertical direction. The swinging operation of the horizontal louvers 5 is performed by vertically moving an operation knob 7 provided at the center of the horizontal louvers 5 pivotally supported at a central position with respect to each vertical louver 4 and arranged on the front surface of the drum 6. Done. The drum 6 configured as described above is fitted into the blower outlet 2 of the ventilator case 1, and the shaft 8 projecting from the center of the upper and lower surfaces of the drum 6 is provided at a position corresponding to the upper and lower surfaces of the ventilator case 1. By being pivotally supported in the pivot support hole 9, the ventilator case 1 is attached so as to be rotatable in the left-right direction in the blowout outlet 2. Therefore, when the front surface of the drum 6 is pushed to rotate in either the left or right direction, the left and right directions of the blowing air are adjusted, and when the operation knob 7 is moved in the vertical direction, the horizontal louver 5 swings up and down. The vertical wind direction is adjusted.

<Problems to be Solved by the Invention> However, in such a conventional wind direction adjusting device, since the drum 6 is arranged on the ventilation passage in the ventilator case 1, as shown in FIG. Has collided with the rear end portion of the drum 6, which causes a turbulent flow of wind to increase ventilation resistance. Further, since the drum 6 is rotatably attached, a gap is created between the outer periphery of the drum 6 and the inner periphery of the ventilator case 1, and the air flows through this gap, as shown by the one-dot chain line in FIG. When the louver 5 is swung up and down to change and adjust the vertical direction of the wind direction, there is a problem in that the wind having the changed wind direction collides with the wind flowing through the gap, resulting in poor air distribution. In order to solve these problems, conventionally, the ventilator case 10 as shown in FIG. 5 is formed in a stepped shape so that the end portion 12 on the side of the blower air outlet 11 is formed larger than the end portion 14 on the side of the blower air inlet 13. Then, there has been proposed an airflow direction adjusting device in which a drum 15 having a similar structure is attached inside the air blowout port 11. According to this airflow direction adjusting device, since the outer periphery of the drum 15 is disengaged from the ventilation passage in the ventilator case 10, the blown air does not hit the drum 15 and the airflow does not pass through the gap between the drum 15 and the ventilator case 10. Therefore, the above-mentioned problems can be solved simultaneously.

However, in this device, since the step portion 16 is formed in the ventilator case 10, a portion 17 that is blocked by the step portion 16 and in which air does not flow forms a negative pressure portion, and noise is generated by the turbulent flow flowing in the negative pressure portion. There are new problems.

Therefore, the present invention is an air flow direction adjusting device that prevents a turbulent flow of air or a collision by installing a drum provided with a louver in an end portion of a ventilator case that is larger than an end portion of the ventilator case on the air outlet side. It is therefore an object of the present invention to provide an improved wind direction adjusting device that can eliminate the negative pressure in a portion of the ventilator case that is out of the ventilation passage and prevent the generation of noise due to the negative pressure.

<Means for Solving the Problems> In order to solve the above-mentioned problems, the air flow direction adjusting device of the present invention is configured such that the air blower outlet side end portion is formed to be larger than the air blow inlet side end portion. An airflow direction adjusting device in which a drum provided with a plurality of louvers is rotatably mounted in an outlet, characterized in that a ventilation portion is provided on a wall surface of an end portion of the ventilator case on the side of the air outlet.

<Operation> Since the ventilation part is provided on the wall surface of the ventilation outlet side end of the ventilator case, the part outside the ventilation passage inside the ventilation outlet side end of the ventilator case is ventilated through this ventilation part, which causes negative pressure. The generation of noise is prevented.

<< Embodiment >> FIG. 1 shows an embodiment of the wind direction adjusting device according to the present invention.

The wind direction adjusting device 21 includes a ventilator case 22 formed in a rectangular tubular shape, and the ventilator case 22.
And a drum 26 having a plurality of vertical louvers 24 and a plurality of horizontal louvers 25, which are rotatably mounted in the blower outlet 23.

The ventilator case 22 has a stepped shape, and an end portion 27 on the side of the air blow outlet 23 for accommodating the drum 26 is formed larger than an end portion 30 on the side of the air blow inlet 29 via a step wall 28. Further, both side walls of the blower outlet side end portion 27 are formed to bulge in an arc shape, and a pivot hole 31 for pivotally supporting the drum 26 is formed in the front center portion of the upper and lower wall surfaces.
However, the stepped wall 28 also has ventilation holes 3 as a plurality of ventilation parts.
2 are formed respectively.

The drum 26 is formed in a frame shape along the inner circumference of the blower outlet side end portion 27 of the ventilator case 22, and has shafts 33 at the upper and lower central portions thereof, respectively. Vertical louvers 24 are integrally provided, and a plurality of horizontal louvers 2 are provided at the rear of these vertical louvers 24.
5 are pivoted at equal intervals by known means. Further, these lateral louvers 25 are connected by a link (not shown) so that they can be integrally swung in the vertical direction by operating the operating knob 34 provided on the lateral louver 25 at the central position and arranged on the front surface of the drum 26. It has become. This drum 26 is provided with the ventilation outlet 2 of the ventilator case 22.
The shafts 33 are fitted in the shaft 3, and the shafts 33 on the upper and lower surfaces are pivotally supported by the pivot holes 31 of the ventilator case 22. Therefore, the horizontal direction of the wind direction is adjusted by pressing the front surface of the drum 26 to rotate it in either the left or right direction, and by moving the operation knob 34 in the vertical direction, the horizontal louvers 25 are swung up and down to change the wind direction. The vertical direction of is adjusted.

According to the wind direction adjusting device 21, the drum 26 provided with the louvers 24 and 25 is mounted in the air blowing outlet 23 which is formed larger than the air intake inlet end 30 of the ventilator case 22. Since the outer peripheral portion of the drum 26 is disengaged from the ventilation passage in the ventilator case 22, it is possible to prevent turbulence and collision of the blower air. Further, a plurality of step walls 28 forming the blower outlet side end portion 27 of the ventilator case 22 are provided with a plurality of Since the ventilation holes 32 are provided, through the ventilation holes 32, as shown in FIG.
By ventilating the part deviated from the ventilation passage by means of 8, the negative pressure state of the part can be eliminated, and the generation of noise due to the turbulent flow flowing in the negative pressure part can be prevented.

Although the ventilation hole 32 is provided in the step wall 28 of the ventilator case 22 in this embodiment, the ventilation outlet side end portion 27 is provided.
It may be formed on the upper and lower walls.

Further, as the ventilation portion, a slit may be used instead of the ventilation hole 32. Further, the stepped portion may be formed of a truncated cone-shaped tapered surface.

<Effects of the Invention> As described above, according to the wind direction adjusting device of the present invention, since the ventilation hole is provided on the wall surface of the end portion of the ventilator case on the side where the air blows out, the end of the ventilator case on the side of the air intake side It is possible to ventilate the part of the large end of the blower outlet side that is off the ventilation passage, which prevents negative pressure in that part and prevents the generation of noise due to turbulence. It is possible to achieve comfortable wind direction adjustment.

[Brief description of drawings]

FIG. 1 is a sectional perspective view showing an embodiment of a wind direction adjusting device according to the present invention, FIG. 2 is a cross sectional view for explaining the operation of the device, and FIG. 3 is an example of a conventional wind direction adjusting device. FIG. 4 is a cross-sectional perspective view of the same apparatus, and FIG. 5 is a cross-sectional view of another conventional wind direction adjusting apparatus. 22 ... Ventilator case, 23 ... Blow-off outlet, 24
... Vertical louver, 25 ... Horizontal louver, 26 ... Drum, 27 ... Blow-out port side end part, 28 ... Step wall, 29 ... Blow intake port, 30 ... Blow intake port side end part, 31 ... Pivot hole, 32 ...
Ventilation hole (vent), 33 ... Shaft, 34 ... Operation knob.

Claims (1)

[Scope of utility model registration request] 1. An air flow direction adjusting device in which a drum provided with a plurality of louvers is rotatably attached to the inside of the blower outlet of a ventilator case in which the end of the blower outlet side is formed larger than the end of the blower inlet side. And a ventilation part is provided on a wall surface of the ventilator case at an end portion of the ventilator case on the side of the air outlet.