JPS645223B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a ventilation system for a wall-penetrating air conditioner installed in a perimeter zone of a building or the like.

Conventional structure and its problems Traditionally, wall-penetrating air conditioners have the following configurations:
A ventilation system as shown in the figure is provided. That is, the main body 1 of the air conditioner is provided with a partition plate 2, and the outer edge of the partition plate 2 is made to protrude from the outer peripheral surface of the main body 1, and the main body 1 is separated into an indoor unit side 3 and an outdoor unit side 4 by this partition plate 2. It is divided into The indoor unit side 3 is provided with an indoor heat exchanger and an indoor blower, and the outdoor unit side 4 is provided with an outdoor heat exchanger and an outdoor blower (both not shown). Both are equipped with a compressor. A ventilation device is provided in the center of the partition plate 2 for ventilation.

This ventilation system has a configuration as shown in FIGS. 2 and 3. That is, the partition plate 2 is provided with a substantially rectangular opening 6 through which air enters and exits. A fixing plate 7 is attached at right angles to one end of the opening 6 of the partition plate 2, and a limit switch 8 is fixed to the fixing plate 7. A half-moon-shaped cam 10 is disposed so as to be in contact with the contact projection 9 of the limit switch 8, and this cam 10 is constructed integrally with a connecting rod 11 and a pin 12. The pin 12 is inserted into one end of the universal connecting rod 13, so that the universal connecting rod 13 can rotate freely, and the other end of the universal connecting rod 13 is connected to the mounting piece 15 of the damper 14 that opens and closes the opening 6. They are connected by a pin 16 for free rotation. One end of the damper 14 is attached to a hinge 17 on the partition plate 2.
are connected by. 18 in the figure is the fixed plate 7
This is a geared motor for driving that is attached to one side of the.

In this way, conventionally, an operation switch (not shown)
By turning on the limit switch 8, the geared motor 18 moves the cam 10 to the left position shown in FIG. The outdoor unit side 4 and the indoor unit side 3 communicate with each other through the section 6 to perform ventilation.

Next, when the limit switch 8 is turned off, the cam 10 is rotated 180 degrees by the geared motor 18.
The connecting rod 11 also turns to the left, and the flexible connecting rod 13 is pulled, so the damper 14 moves in the closing direction, contacts the partition plate 2, closes the opening 6, and when the cam reaches the fully closed position, the damper 14 moves in the closing direction. 10 hits the contact protrusion 9, cutting off the power to the geared motor 18 and stopping it.

However, these ventilators have damper 1
4 only opens and closes, and for example, when a large amount of ventilation is required in a room equipped with such a wall-penetrating air conditioner, or conversely, when a small amount of ventilation is required, It was impossible to adjust the amount of ventilation. On the other hand, adjusting the opening degree of the damper 14 by adding a special mechanism has the disadvantage that it cannot be accommodated in terms of cost.

OBJECT OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks.
The purpose of the present invention is to provide a ventilation device that allows the ventilation amount to be easily adjusted.

Structure of the Invention The present invention provides a partition plate that partitions indoor and outdoor areas and has a fixed plate, a geared motor provided on the fixed plate of this partition plate, a limit switch that controls the rotation of this motor, and a device that rotates by the geared motor.
It has a cam that turns the limit switch ON and OFF, an L-shaped connecting rod with one end fixed to the cam, and a long hole at one end into which a pin at the other end of the connecting rod is movably inserted, and A universal connecting rod having a threaded portion on the outer periphery, an adjustment nut that is screwed into the threaded portion of the universal connecting rod and serves as a stopper for regulating the movement range of the pin, and an adjustment nut provided on the partition plate to communicate between the indoor and outdoor areas. an opening, and a damper whose one end is connected to a partition plate via a hinge and opens and closes the opening;
A shaft provided at the other end of the damper and rotatably connected to the other end of the flexible connecting rod,
The degree of opening of the damper is adjusted by the screwing position of an adjustment nut attached to the flexible connecting rod, and the amount of ventilation is adjusted.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 3 to 5. In the figure, 21 is a partition plate similar to the partition plate 2 shown in FIG.
The outdoor unit side and the indoor unit side (see Figure 1 for both)
A ventilation opening 22 is formed to communicate with the air.
A fixing plate 23 is provided at right angles to one end of the opening 22 of the partition plate 21. A geared motor 24 for driving is provided on one side of the fixing plate 23, and a geared motor 24 is provided on the other side (back side) of the fixing plate 23. limit switch 2
5, and this limit switch 25 has a contact protrusion 26 for turning on and off. A half-moon-shaped cam 2 is attached to the rotating shaft of the geared motor 24.
7 are connected to each other, and this cam 27 is provided at a position where the contact protrusion 26 is pressed or protruded. The cam 27 has an L-shaped connecting rod 28.
One end of the connecting rod 28 is fixed, and a pin 29 is provided at the tip of the connecting rod 28. A long hole 31 formed at one end of a flexible connecting rod 30 is fitted into the pin 29. This flexible connecting rod 30 has a threaded portion 3 on the outer periphery.
2, and a threaded portion 34 of an adjustment nut 33 is screwed into this threaded portion 32. The adjustment nut 33 has a knurled portion 3 on its outer periphery to prevent slipping when operated by hand.
5. The adjusting nut 33 functions as a stopper for the pin 29 movably inserted into the elongated hole 31 of the flexible rod 30. A damper 37 for opening and closing the opening 22 is connected to the partition plate 21 by a hinge, and a holding piece 38 is provided at right angles to the damper 37. This holding piece 38 is provided with a shaft 39, and this shaft 39
is rotatably connected to the other end of the flexible connecting rod 30.

In the above configuration, the normal ventilation amount, i.e.
When used for near maximum ventilation, the adjusting nut 33 is in the position shown in FIG. When an operating switch (not shown) is operated to close the damper 37, the geared motor 24 is energized via the limit switch 25, and the cam 27 begins to rotate in the direction of arrow H. That is, the connecting rod 28 and pin 29 rotate at the same time, and when the pin 29 rotates 180 degrees while pulling the flexible connecting rod 30, the contact protrusion 26 is activated and the geared motor 24 is stopped. At this time, the damper 37 contacts the partition plate 21 and the opening 22 is closed.

Next, when the operation switch is turned on to open the damper 37, the geared motor 24 is energized via the limit switch 25, the geared motor 24 is driven, and the cam 27 connected to the geared motor 24 moves in the arrow direction. It begins to rotate in the direction indicated by G.
That is, as the cam 27 rotates, the connecting rod 28 and pin 29 also rotate, and the pin 29 acts as a stopper while pushing the adjusting nut 33. When the cam 27 has rotated 180 degrees, the contact protrusion 26 is actuated.
Geared motor 24 stops. FIG. 4 shows this stopped position, and the opening degree of the damper 37 is determined to determine the ventilation amount.

Next, if this ventilation volume is large, it becomes necessary to reduce the ventilation volume. At this time, turn the adjusting nut 33 while rotating it with your hand.
Change the position to the holding piece 38 side (damper side).
Then, the opening/closing operation is performed in the same manner as described above, and during the opening operation, the flexible connecting rod 30 is connected to the elongated hole 31.
The pin 29 of the damper 37 is slid and moved to the left (FIG. 4), so the opening degree of the damper 37 becomes smaller and the amount of ventilation also becomes smaller.

Effects of the Invention As is clear from the description of the above embodiments, the present invention includes a partition plate that partitions indoors and outdoors and has a fixed plate, a geared motor provided on the partition plate, and a limit switch that controls the rotation of this motor.
A cam rotated by a geared motor to turn the limit switch ON and OFF, an L-shaped connecting rod with one end fixed to the cam, and a long hole at one end into which a pin at the other end of the connecting rod is movably inserted. a flexible connecting rod having a threaded portion on the outer periphery;
An adjustment nut that is hinged to the threaded portion of the universal connecting rod and serves as a stopper that regulates the range of movement of the pin; an opening provided in the partition plate that communicates indoor and outdoor; It is equipped with a damper that is connected to adjust the opening and closing of the opening, and a pin that is provided at the end of the damper and rotatably connects the other end of the flexible connecting rod, and the damper opening degree is set on the flexible connecting rod. Since the adjustment is made by the hinge position of the adjustment nut, the amount of ventilation can be easily adjusted by simply adjusting the position of the adjustment nut, depending on the installation status of the through-wall air conditioner, for example. In addition, during manufacturing, we respond to a wide variety of ventilation requirements.
Since there is no need to design a ventilation system for each type of air conditioner, mass productivity can be improved and costs can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional example and a through-wall air conditioner referred to in the description of the present invention, Fig. 2 is a side sectional view of a conventional ventilation device installed on a partition plate, and Fig. 3 is a side view of the same. , FIG. 4 is a side sectional view of a ventilation system according to an embodiment of the present invention, showing the damper in an open state. 5 is a side view of the same, and FIG. 6 is a perspective view of the universal connecting rod and adjustment nut shown in FIG. 4. 21... Partition plate, 22... Opening, 23... Fixed plate, 24... Geared motor, 25... Limit switch, 26... Contact protrusion, 27... Cam, 28... Connecting rod, 29... Pin, 30... Universal connecting rod, 31... Long hole, 32... Threaded part, 33
...adjustment nut, 36...hinge, 37...damper.

Claims (1)

[Claims] 1. A partition plate that partitions the outdoor unit side and the indoor unit side and has an opening that communicates indoor and outdoor, a geared motor provided on this partition plate, a limit switch that controls the rotation of this motor, and a motor that rotates by the geared motor. , a cam that turns the limit switch ON and OFF, an L-shaped connecting rod with one end fixed to the cam, and a long hole at one end into which a pin at the other end of the connecting rod is movably inserted. and a universal connecting rod having a threaded portion on its outer periphery, an adjustment nut that is screwed into the threaded portion and serves as a stopper for regulating the movement range of the pin of the connecting rod, and connected to the partition plate via a hinge, A ventilation system for a wall-penetrating air conditioner, comprising: a damper that adjusts opening and closing of the opening; and a shaft provided at the other end of the damper and rotatably connected to the other end of the flexible connecting rod.