JP2000274799A - Fan - Google Patents

Abstract

PROBLEM TO BE SOLVED: To turn an wind vane smoothly by forming an wind vane and an interlocking plate integrally through a thin part, providing a plurality of interlocking plates on the windward side and the leeward side or only on the leeward side of the wind vane. SOLUTION: A plurality of wind vanes 31 are provided rotatably with respect to a body base 33 constituting an air outlet 24 and a plurality of interlocking plates 34 for turning each wind vane 31 in same direction are formed integrally therewith. The interlocking plates 34 are formed at one windward end and the other leeward end of the wind vane 31 integrally through a thin part 40. The thin part 40 has hinge function and the wind vane 31 turns about the thin part relative to the interlocking plate 34. Since the wind vane 31 and the interlocking plates 34 are formed rotatably and integrally through a thin part 40, the wind vanes 31 can be turned simultaneously in same direction. Since a plurality of interlocking plates 34 are provided, rotary torque can acts on the wind vanes 31 through the interlocking plates 34 and rotational stability is enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blower capable of changing a blowing direction of a blower, for example, a blower in an air conditioner or a blower used for vehicles such as vehicles.

[0002]

2. Description of the Related Art In an air conditioner, for example, air sucked from an inlet and cooled or heated by a heat exchanger is accelerated by a blower of a blower and blown out from an outlet. Here, as shown in FIG. 5, a plurality of resin-made left and right wind direction plates 1 are arranged at a constant interval in the horizontal direction at the air outlet in order to change the blowing direction of the air flow in the horizontal direction. . In addition, a vertical wind direction plate 2 that changes the blowing direction in the vertical direction is provided at the air outlet so as to be rotatable in the horizontal direction. In the following, the left and right wind direction boards are referred to as wind direction boards.

[0003] A resin interlocking plate 3 for connecting the wind direction plates 1 is provided, and these wind direction plates 1 can be simultaneously rotated in the left and right directions by an external operation. In general, the number of the wind direction plates 1 varies depending on the capacity of the air conditioner, and two to four sets are provided, each set including four to five sheets.

As shown in FIG. 6, the wind direction plate 1 integrally forms a blade 4 for changing the wind direction, a base 5 for supporting the same, and a rotating shaft 6 protruding from the base 5 with resin. It was done. The dowel 7 is formed in the blade portion 4, and the dowel hole 8 of the interlocking plate 3 is fitted into the dowel 7, so that the interlocking plate 3 is rotatably attached to the wind direction plate 1.

[0005] The rotating shaft 6 is composed of a cylinder divided into four parts.
The claw 11 formed at the tip is fitted into the mounting hole 10 of the main body substrate 9 forming the air outlet, and the claw 11 formed at the tip is hooked on the main body substrate 9, so that the wind direction plate 1 does not come off from the main body substrate 9. Further, when a specific wind direction plate 1 is picked from the outside or the handle provided on the wind direction plate 1 is turned to the right or left by an appropriate angle and then released, the turning shaft 6 and the main body substrate 9 are turned off. The wind direction plate 1 is locked at the separated rotation position by the friction between

[0006]

SUMMARY OF THE INVENTION In a conventional blower,
The three components of the wind direction plate, the interlocking plate, and the main board are composed of different parts, and the interlocking plate must be fitted and attached to the dowels of the wind direction plate, and the rotation axis of the wind direction plate must be fitted into the main body board to assemble. However, there is a problem that it takes much time and labor, and much labor is required in the assembling work, and the cost is high.

As a technique for solving the above problem, there is a technique described in Japanese Patent Application Laid-Open No. Hei 10-47748. This is a structure in which a plurality of resin-made wind direction plates are integrally connected to a resin-made interlocking plate by thin hinge portions, and a rotation axis of the wind direction plate is fitted into a mounting hole formed in the main body substrate. It is crowded.

[0008] When the wind direction plate and the thin hinge portion are integrally formed as described above, the wind direction plate rotates with the deformation of the thin hinge portion, and the wind direction plate is rotated. Great power is required. For this reason, a load is applied to the wind direction plate that rotates around the rotation axis, and the wind direction plate is likely to be twisted or deformed, and the wind direction plate may not rotate reliably and smoothly. In view of the above, an object of the present invention is to provide a blower that can smoothly rotate a wind direction plate.

[0009]

In the means for solving the problems according to the present invention, a wind direction plate and an interlocking plate are integrally formed via a thin portion, and a plurality of interlocking plates are arranged on the windward and leeward sides of the wind direction plate. Or only on the leeward side.

[0010] When there are a plurality of interlocking plates, the force acting on the wind direction plate is greater than when there is only one interlocking plate. Therefore, even if the wind direction plate is twisted or deformed, it becomes difficult to rotate. The wind direction plate is forcibly rotated with the movement of the interlocking plate. Therefore, each wind direction plate can be reliably and smoothly rotated.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIG. 1 shows an indoor unit of a separation type air conditioner equipped with a blower of an embodiment of the present invention.
Shown in In this indoor unit, suction openings 22 and 23 are formed on a front grill 21 and an upper surface of a cabinet 20, and an outlet 24 is formed below the front grill 21. A passage 25 communicating with the passage 24 is formed. In the flow path 25, an air filter 26, a heat exchanger 27, and a blowing device are arranged from the upstream side in the blowing direction.

The blower is provided with a cross flow fan as a blower 30, a wind direction plate 31 arranged at the blow-out port 24 for controlling the blowing in the left and right directions, and a vertical direction plate 32 for controlling the blowing in the vertical direction. . Up and down wind direction board 32
Is rotatably supported by the side wall of the outlet 24 and is rotated by a manual operation or automatically rotated by a motor.

The air flow in the air conditioner is such that the air sucked from the front grill 21 of the indoor unit and the suction ports 22 and 23 on the upper surface by the operation of the blower 30 passes through the air filter 26 and then exchanges heat. Heat exchange in the vessel 27,
Thereafter, the air is blown out from the outlet 24 as hot air or cold air. At the outlet 24 immediately before blowing into the room, the direction of the blown air to be blown is determined by the wind direction plate 31 and the vertical wind direction plate 32. The streamline of the blown air flows along the upper wall and the lower wall of the air outlet 24 in most models.

Here, in the blower of the present embodiment, a plurality of wind direction plates 31 are provided rotatably with respect to a main body substrate 33 constituting a part of the lower wall of the air outlet 24, and each wind direction plate 31 is connected to the air flow direction plate 31. A plurality of interlocking plates 34 for rotating simultaneously and in the same direction
Are formed integrally with the wind direction plate 31. That is, as shown in FIG. 2, two wind direction plates 31 and one interlocking plate 34 have a structure integrally formed of resin to form one unit. ABS or PS as resin material
Alternatively, PP or the like is used.

The wind direction plate 31 is a thin plate having substantially the same shape as that of the conventional blade portion, and is arranged on the main body substrate 33 at a predetermined interval in the left-right direction. The main board 33 includes each wind direction plate 31.
A plurality of pins 35 are rotatably supported to protrude at regular intervals, and the wind direction plate 31 is fitted into the pins 35. For this reason, the lower part of the center of the wind direction plate 31 is cut out so that the pin 35 can be inserted, and a ring-shaped base portion 36 is formed.
A letter-shaped locking member 37 is formed. The wind direction plate 31 is fixed at an arbitrary rotation position by the frictional force between the pin 35 and the locking member 37.

The interlocking plate 34 is formed in a rod shape extending in the left-right direction, and is integrally connected to one end on the windward side and the other end on the leeward side of the wind direction plate 31 by a thin portion 40.
Knobs 41 are formed at both left and right ends of the knob. Thin part 40
Is formed so as to be thinner than the wind direction plate 31, and its thickness is such that the direction of the wind direction plate 31 is easily changed and
By this rotation, the resin material is set to a size that does not cause whitening or cut. Therefore, the thin portion 40 has a function of a hinge, and the wind direction plate 31 rotates with respect to the interlocking plate 34 about this.

If a unit having a structure in which the plurality of wind direction plates 31 are integrally connected to the interlocking plate 34 via the thin portion 40 as described above, it is not necessary to perform an assembling operation of attaching the interlocking plate to the wind direction plate as in the related art. It can be easily manufactured with only the mold, and only the work of incorporating it into the cabinet 20 is sufficient.
Assembly work can be simplified.

Then, when the knob 41 of the arbitrary wind direction plate 31 or the interlocking plate 34 is moved right and left, as shown in FIG. 3, the interlocking plate 34 causes the other wind direction plate 31 to rotate in the same direction. Here, if any of the wind direction plates 31 rattles with respect to the pin 35, a large resistance force acts on the rotation of the wind direction plate 31, and the rotation is hindered, resulting in twisting or deformation. Sometimes. However, the interlocking plate 34
Is provided at both ends, the other interlocking plates 34 move in the opposite directions due to the smooth rotation of the other airflow direction plates 31. Twice the rotation torque is applied, and even if the wind direction plate 31 is caught by the pin 35 and is difficult to rotate, the twist and deformation of the wind direction plate 31 are corrected and the wind direction plate 31 rotates smoothly. . Therefore, the wind direction plate 31
, Stable operation can be obtained, smooth operation can be performed, and operability is improved.

From this, the wind direction plate 31 is attached to the main board 33.
In the case where the wind direction plate 31 is rotatably supported, the wind direction plate 31 can be rotated even if there is some error in the positioning accuracy between the pin 35 and the locking member 37 of the wind direction plate 31 and the dimensional accuracy thereof. Therefore, manufacturing and assembly work becomes easy.

Further, interlocking plates 34 on the leeward and leeward sides are provided.
Is formed at substantially the same height with respect to the main body substrate 33, the resistance to the blown-out air does not increase, and an increase in the air volume and low noise can be realized.

(Second Embodiment) In this embodiment, as shown in FIG. 4, two interlocking plates 34 are provided only on one side of the wind direction plate 31. Each interlocking plate 34 is integrally connected to a lower portion and an upper portion of one end on the leeward side of the wind direction plate 31 via a thin portion 40 for easy operation, and other configurations are the same as those in the above embodiment. is there.

In this case as well, as in the first embodiment, a double rotational torque is applied to the wind direction plate 31 by the two interlocking plates 34, so that any one of the wind direction plates 31 or the pin 35 has a positional or dimensional difference. Even if the accuracy varies, the wind direction plate 31 can be surely rotated, and the rotation stability of the wind direction plate 31 can be obtained.

It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that many modifications and changes can be made to the above-described embodiment within the scope of the present invention. The blower described above can be used not only for air conditioners in buildings but also for vehicles such as automobiles. Alternatively, the pin may be connected to a motor shaft, and the wind direction plate may be automatically rotated by driving the motor.

The number of interlocking plates is not limited to two, but may be three or more. Further, the interlocking plates may be provided not between the ends of the wind direction plates but between adjacent wind direction plates. It is desirable to arrange the boards.

[0025]

As is apparent from the above description, according to the present invention, since the wind direction plate and the interlocking plate are integrally rotatably coupled via the thin portion, each wind direction plate is simultaneously and in the same direction. Can be rotated. In addition, even if the rotation of one of the wind direction plates becomes unstable, the plurality of interlocking plates are used. It can act on the wind direction plate via each interlocking plate. Therefore, each wind direction plate can be rotated reliably and smoothly, and the rotation stability can be improved.

[Brief description of the drawings]

FIG. 1 is a sectional view of an indoor unit of an air conditioner according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a wind direction plate.

FIG. 3 is a plan view of a wind direction plate at the time of rotation.

FIG. 4 is a cross-sectional view of the indoor unit of the air conditioner according to the second embodiment.

FIG. 5 is an exploded perspective view of a conventional blower.

6A and 6B show a conventional wind direction plate, wherein FIG. 6A is a side view and FIG.
Is the bottom view

[Explanation of symbols]

 24 Outlet 31 Wind direction plate 34 Interlocking plate 35 Pin 40 Thin part

Claims (3)

[Claims] A plurality of wind direction plates are rotatably arranged at an air outlet for blowing in order to change a blowing direction, and a plurality of interlocking plates for rotating each wind direction plate simultaneously and in the same direction are provided. A blower, wherein the interlocking plate is provided so as to be rotatable integrally with each wind direction plate via a thin portion. 2. A wind direction plate is rotatably supported on a main body substrate forming an air outlet through a support shaft, and an interlocking plate is disposed on the windward and leeward sides of the wind direction plate with the support shaft interposed therebetween. The blower according to claim 1, wherein: 3. The blower according to claim 1, wherein each interlocking plate is arranged on the leeward side of the wind direction plate.