JPS6126815Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a damper opening/closing mechanism for an air conditioner.

FIG. 1 shows a cross-sectional view of an integrated building air conditioner having a damper mechanism with a damper lid in an "open" state.

This air conditioner includes a partition plate 1, a damper lid 2, an indoor air blower 3, an indoor heat exchanger 4, an outdoor air blower 5, an outdoor heat exchanger 6, a duct 7, an indoor air outlet 8, an indoor air suction Port 9, outdoor air outlet 11,
The main components are an outdoor air suction port 12, a control chamber 13, a lever 14, a damper suction port 15, a rear plate 16, and a partition hole 17.

A wall 18 separates the room into indoor A and outdoor B.

The damper lid 2 is attached to the indoor surface of the partition hole 17 of the partition plate 1, and the duct 7 is attached between the outdoor surface of the partition plate 1 and the rear plate 16. The damper lid 2 is opened using the lever 14 located in the control room 13.
This can be done by operating the . During ventilation (intake), air flows from A to C through the damper suction port 15, the duct 7, the partition hole 17, the indoor blower 3, the indoor heat exchanger 4, and the indoor air outlet 8. At the same time, indoor air is also circulated from A to C of the indoor air suction port 9, the indoor fan 3, the indoor heat exchanger 4, and the indoor air outlet 8. The flow of air on the outdoor side is from the outdoor air inlet 12, the outdoor heat exchanger 6, the outdoor fan 5, and the outdoor air outlet 11.

Figure 2 shows the entire conventional damper mechanism on the indoor side A.
FIG. 3 is a perspective view of the "closed" state as seen from above, and FIGS. 3 and 4 are XX sectional views of the damper lid portion,
The figure shows the closed state, and FIG. 4 shows the open state.

The leaf spring 19 is spot welded to the damper lid 2,
The other end is attached to the partition plate 1 with a pin screw. The lever 14 is attached to a lever mounting plate 21 so as to move between the levers 14 and 21 with a screw 20 as a fulcrum. Both ends of the operating wire 22 are caulked with terminals 23 and attached to the lever 14 and the damper lid 2 with screws 24, respectively.

When performing intake operation, move the lever 14 to the lowest position.
By moving the lever 14 to the position, the lever 14 rotates around the screw 20, and the operating wire 22 is pulled.
The damper lid 2 opens in the direction H, and air can be taken in through the partition hole 17.

In this "open" state, the leaf spring 19 is bent, and as shown in FIG. 4, a force is applied to the leaf spring 19 to return it in the opposite direction. In order to prevent the lever 14 from returning from "H" to "H", a coil spring 25 is used to prevent the lever 14 from moving and maintain the "open" state.

However, according to the Building Standards Act, partition plate 1 in Figure 1
is considered a Class B fire door as stipulated in Article 110 of the Enforcement Order of the same law, but having an opening such as the partition plate 17 therein is not considered a fire door according to the opinion of the fire department. There have been cases where this has resulted in disadvantages in terms of sales and installation.

The present invention solves the above-mentioned problems and aims to automatically close the damper cover in the event of a fire and to allow the partition plate to function as a fire door.

Fig. 5 shows an embodiment of the present invention, the mechanism is the same as Fig. 2, and the material (for example, solder, etc.) that melts when the terminal 33 of the operating wire 32 on the damper lid 2 side is heated abnormally rises. are using.

FIG. 6 shows an enlarged view of the terminal 33.

When the damper lid 2 is in the "open" state, the leaf spring 19 simply acts on the damper lid 2 in the direction of force to close the partition hole 17, and when the temperature rises abnormally, the terminal 33 melts due to heat and the damper lid 2 and operation wire 32
are separated, the damper lid 2 is closed, and the partition hole 17 is closed.
is blocked.

As mentioned above, the present invention is an air conditioner opening/closing mechanism in which a part of the damper opening/closing operation wire is made of a material that melts with heat, and the wire is cut when the temperature rises abnormally, causing the damper to close the partition hole. This has the effect that the partition plate can be regarded as a fire door as defined in the Building Standards Act.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of an integrated air conditioner with a damper mechanism, Fig. 2 is a perspective view of the entire conventional damper mechanism as seen from the indoor side, and Fig. 3 is an X--
The X-sectional view, FIG. 4, shows the open state of FIG. 3. FIG. 5 shows an embodiment of the present invention, which corresponds to FIG. 2, and FIG. 6 shows an enlarged view of the terminal 33. 1... Partition plate, 2... Damper lid, 17... Partition hole, 19... Leaf spring, 32... Operation wire, 3
3...Terminal. 〓〓〓〓

Claims (1)

[Scope of utility model registration request] A part of the damper opening/closing operation wire is made of a material that melts with heat, and the wire is cut when the temperature rises abnormally.
A damper opening/closing mechanism for an air conditioner, characterized in that a damper closes a partition hole.