JPS6240247Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an improvement of a fan coil unit installed inside the ceiling.

Conventionally, this type of fan coil unit was constructed as shown in FIG. In the figure, 1 is a box-shaped main body, 2 is a ceiling exposed panel having an air inlet 3 and an air outlet 4 on the other side as shown in FIG. 2, and 5 is a filter provided above the inlet 3. ,
Reference numeral 6 denotes a lever device installed at the air outlet 4, 7 a filter case for housing the filter 5, 8 a blower having a Sirotskov fan, 9 a heat exchanger, and 10 a dew pan for collecting condensed water from the heat exchanger 9. , 11 is a partition plate attached to one end of the base plate 8a of the blower 8, and together with the base plate 8a of the blower 8, divides the inside of the main body 1 into a suction side passage 12 and an outlet side passage 13. 14
1 is a drain outlet of the dew pan 10, and 15 and 16 are piping connection ports for connecting inlet side piping and outlet side piping (not shown) for supplying cold water or hot water to the heat exchanger 9. 17 is the outlet of the outlet side passage 13 of the main body 1 and the outlet 4 of the exposed ceiling panel 2
A blow-off duct is connected to the outlet of the blow-off side passage 13 formed by the partition plate 11 and the main body 1 and is slidably mounted in the vertical direction via a sealing material 20. Reference numeral 18 designates metal fittings for pressing and fixing the air outlet duct 17 to the outer frame 2a and inner frame 2b of the exposed ceiling panel 2, and is secured with mounting screws 19. 21 is the fixing metal fitting for the filter 5, and the mounting screw 2
2 to the ceiling exposed panel 2.
23 is a sealing material provided on the peripheral wall of the filter case 7 to seal between the filter case 7 and the main body 1; 24 is a mounting piece provided on both side plates of the main body 1;
25 is a hanging bolt embedded in ceiling slab B.
By inserting this bolt into the mounting piece 24 and tightening the nut 26, the hanging height of the main body 1 within the ceiling A is adjusted.

Next, the operation will be explained. By operating the blower 8, indoor air flows into the main body 1 from the suction port 3 via the filter 5, and undergoes heat exchange in the heat exchanger 9 to become cold or warm air, which is then transferred to the blower duct 17.
The air is blown out from the air outlet 4 into the room again through the air.
In addition, during installation work, since the blowout duct 17, filter case 7, and ceiling exposure panel 2 have a structure that allows the positions to be adjusted up and down with respect to the main body 1, the hanging height of the main body 1 in the ceiling A is the adjustable dimension. No sophisticated installation work is required as it can be placed in any location within the building. Note that the filter 5 becomes clogged with dust when operated for a long period of time, so it requires regular cleaning. However, when removing the filter 5, open the service panel 2c of the exposed ceiling panel 2 and rotate the fixing bracket 21 to remove the filter. 5 is removable.

Since the conventional type is constructed as described above, when the amount of dust attached to the filter 5 is relatively small, since the material of the filter 5 is black,
Although it is not noticeable when viewed from the outside (inside the room), when the amount of dust attached increases after driving for a long time, it becomes whitish, making it noticeable from the outside and spoiling the aesthetic appearance. Furthermore, while the machine is stopped, some of the dust may naturally fall and fall directly into the room. Furthermore, since the filter 5 is only supported by the fixing fittings 21, there is a drawback that a special cushioning material (not shown) or the like is required to prevent vertical vibration during transportation.

This idea was made in order to eliminate the drawbacks of the conventional ones as mentioned above, and it covers the exposed part of the filter above the suction port, and also has a rotatable structure attached to the exposed ceiling panel so that the filter can be attached/detached and fixed. It is an object of the present invention to provide a practical device that eliminates the above-mentioned drawbacks by providing an attached shielding plate and having a structure in which the lower part of the filter is shaped like a flange and comes into contact with the lower surface of the filter case.

An embodiment of this invention will be described below based on the drawings. In FIG. 3, 27 is a shielding plate provided above the suction port 3, and 28 is a rotating support member for the shielding plate 27, both ends of which are inserted through the exposed ceiling panel 2. Reference numeral 29 denotes a fixture for fixing the shielding plate 27, which is secured to the exposed ceiling panel 2 with mounting screws 30. Reference numeral 5a denotes a flange portion of the frame of the filter 5, and the upper surface of the flange portion is attached to the lower surface of the filter case 7. Further, one end of the filter case 7 on the side opposite to the suction port presses and fixes a part of the blow-off duct 17. Furthermore, filter case 7
As shown in FIG. 4, it is directly secured to the exposed ceiling panel 2 with mounting screws 31. The exposed ceiling panel 2 is suspended from a welding nut 33 provided on the main body 1 by inserting a long screw 32 from the bottom thereof so as to be adjustable up and down.

Next, the operation will be explained. In normal use, the filter 5 is attached with the upper surface of the flange portion 5 a in contact with the lower surface of the filter case 7 , and the upper portion of the suction port 3 on the lower surface of the filter 5 is supported by a shielding plate 27 . Therefore, the filter 5 does not move up and down during transportation, and the seal around the filter 5 is maintained. Further, even if a large amount of dust is collected on the filter 5 during long-time operation, the upper part of the suction port 3 is shielded by the shielding plate 27, so that the dust cannot be directly seen from the outside. In addition, when attaching and detaching the filter 5, by opening the service panel 2c and rotating the fixing metal fittings 29 of the shielding plate 27, the side opposite to the support of the shielding plate 27 rotates downward, and the filter 5 can be attached and detached. can.

As described above, according to this invention, a rotatable shielding plate is provided on the exposed part of the filter above the suction port, and the lower part of the filter is made into a flange shape, and the upper surface is attached to the lower surface of the filter case, and the filter is Since the bottom surface is supported by a shielding plate, the filter above the suction port is not exposed to the outside, so even if a large amount of dust accumulates on the filter during long-term operation, it will not be directly visible to the outside, and when stopped Dust does not naturally fall to the outside. Furthermore, since the flange portion of the filter is in contact with the filter case and the shielding plate, the filter does not move up and down during transportation.

[Brief explanation of the drawing]

Fig. 1 is a sectional side view showing a conventional fan coil unit, Fig. 2 is a perspective view of an exposed ceiling panel of this type of fan coil unit, and Fig. 3 is a sectional side view showing an embodiment of this invention. FIG. 4 is an exploded perspective view of the main body, filter case, and exposed ceiling panel. Note that the same reference numerals in the figures indicate the same or corresponding parts. In the figure, 1 is the main body, 2 is a ceiling exposed panel, 8 is a blower, 9 is a heat exchanger, 5 is a filter, 7 is a filter case, and 27 is a shielding plate.

Claims (1)

[Scope of utility model registration request] A main body installed in the ceiling, a partition plate that divides the upper part of the main body into a suction side passage and an outlet side passage, a blower housed in the suction side passage, and a heat exchanger housed in the above blowout side passage. , a filter case attached to the lower part of the suction side passage, communicating the suction side passage with the suction port of the exposed ceiling panel and housing the filter therein; A rotatable shielding plate is provided on the ceiling exposed panel so that it can be fixed, and the lower part of the outer frame of the filter is shaped like a flange, so that the upper surface of the filter can be attached to the lower surface of the filter case. A ceiling-embedded fan coil unit that is characterized by: