JPS6212172Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a heating and cooling air conditioner that is installed embedded in the ceiling surface of an indoor room to supply cold or warm air into the room. The shape allows for smooth and easy air suction as well as air delivery in any direction, and the air inlet and outlet are integrated at the bottom of the container, making the entire container compact and energy-saving. The aim is to provide a ceiling-embedded cassette-type fan coil unit that is optimal for the times.

Normally, this type of ceiling-mounted fan coil unit has a heat exchange coil, fan, electric motor, air filter, and other mechanisms installed on one side of the unit, and is introduced from the lower or side suction port. It has a mechanism that exchanges heat with air within the vessel and sends it into the room via another outlet.

However, since most of these conventional machines have a square or rectangular structure due to the arrangement structure of the mechanism, there are naturally restrictions on the positions of the air outlet and suction port, and the installation location is limited. In some cases, a serious drawback was that air could not be reliably blown in the desired direction. Furthermore, the shape of the air supply passage is detoured and bent, and the partition plate, drain pan, etc. are obstructed, which unnecessarily reduces the air circulation capacity, which makes it extremely inconvenient that the fan capacity must be increased. It was called the economy.

The present invention has focused on the above-mentioned drawbacks, and has made the overall shape extremely compact without any reduction in performance, achieving efficient air conditioning, and significantly expanding the effective indoor area and improving the design. The aim is to provide an aesthetically pleasing and energy-saving fan coil unit, in which a Sirotskov fan is placed in the upper part of the housing, and annular heat exchange coils are arranged around the entire circumference of the fan to form a round overall shape. A drain pan and an air guide plate are disposed on the circumference below the heat exchange coil, and a suction port support frame is provided extending below the air guide plate, and a suction port and an air guide plate are provided on the bottom surface of this frame. A suction guide cylinder in which each filter is removably fitted is fitted and arranged through a support rod so as to be vertically movable and adjustable, and a large diameter external cylindrical frame is attached to the outer periphery of the suction guide cylinder so as to be vertically extendable and retractable. This is a cassette-type fan coil unit for being embedded in the ceiling, characterized in that the fan coil unit is fitted onto the outside of the suction pipe and has an air outlet formed outside the suction pipe.

Hereinafter, a specific example of the present invention will be explained with reference to the drawings. 1 is a round-shaped container housing, in which an electric motor M and a Shirotsukou fan 2 are arranged at the center of the upper part thereof, and an electric motor M and a Shirotsukou fan 2 are arranged on the outer periphery of the Shirotsukou fan 2. Annular heat exchange coil 3
Set up. Reference numeral 4 denotes a partition plate and an air guide plate disposed below the heat exchange coil 3, and an annular drain pan 5 is connected to the circumference of the air guide plate 4.

Further, as shown in FIGS. 2 and 3, a part of the drain pan 5 is provided with a window 13 for operating the valve B at the end of the pipe P, into which a cap 13' is fitted and fixed.

A drain pipe 14 is connected to the end of the drain pan 5.

Although the suction port 7 is omitted in the illustrated example, it is a circular plate in which a large number of small holes 7', such as mesh-shaped round holes, square holes, cross shapes, petal shapes, etc., are provided, and the internal air filter It is removably fitted into the lower opening of a suction guide cylinder 9 which is formed into a cylindrical shape together with 8.

Further, the suction guide cylinder 9 is fitted into a suction port support frame 6 that extends and is fixed below the partition plate 4 so as to be vertically movable via a support rod 10, and is adjusted to a predetermined position by operating an adjustment screw 10'. Fixation takes place.

In some cases, it may be possible to mold the suction port 7 integrally with the suction pipe 9.

Reference numeral 11 has a diameter larger than that of the suction port 7, and covers the outside of the suction guide cylinder 9 with an external cylindrical frame formed in a cylindrical shape, and is attached to the lower part of the housing 1 via an adjustment screw 15 so as to be vertically expandable and retractable. At the same time, an air outlet 12 is fixed to the ceiling and communicated with the air passage of the heat exchange coil 3 between the suction pipes 9.

In addition, the external cylinder frame 11 and the suction pipe 9 are connected to the air outlet 12 through vertical action by an adjusting screw 10.
It goes without saying that it is very easy to change the gap between the two to any width, and it is possible to supply the optimum amount of cooled or heated air into the room each time.

The present invention has the above-mentioned structure, in which the first part of the housing is buried in the indoor ceiling, and the suction port 7 and the air outlet 12 are exposed and installed on the lower surface of the ceiling, and the suction port 7 is opened downward during cooling. It is used by moving it upward during heating, and by the rotation of the electric motor M, the air in the room is guided into the chamber through the air filter 8 from the suction port 7 with the suction action of the Sirotskov fan 2, and then The introduced air is sent to the heat exchange coil 3 by the blowing action of the Sirotskov fan 2, and while the air is exchanged with heat to an appropriate temperature, it is returned to the room through the air outlet 12 as the optimum temperature.

As described above, the fan coil unit according to the present invention has the suction port 7 and the blowout port 12 arranged in parallel at the bottom of the body, and by the vertical action of the suction port 7, it is possible to easily and freely determine the optimal air volume for the room. In particular, by providing the Shirotsuko fan 2 in the upper part of the container and making the overall shape of the container casing 1 into a round shape, the circulating air inside the container flows smoothly and well without any resistance from the bristles, which solves the problem of the conventional method. The resistance of the flow path inside the vessel, which had previously been introduced, has been completely resolved, and because of its round shape, it can be installed anywhere on the ceiling, giving it an elegant design. This has the advantage that there is no need to change the air outlet slightly in terms of direction, and the air can be discharged in any direction within the room.

In addition, since the suction port 7 of the present invention is replaceable, it is possible to obtain the optimal design for the room depending on the seasons, etc., and the drain pan 5 and the baffle plate 4 are integrally connected. With this structure, various operations such as assembly and inspection are extremely simple and easy, and the entire body can be made compact. Since the heat is reliably guided into the Sirotskov fan 2 without being distributed elsewhere, highly efficient heat exchange can be expected.

Furthermore, the present invention has the advantage that since the valve operation window 13 is integrally attached to a part of the drain pan 5, the valve B can be operated very easily from below the drain pan 5.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional side view of the fan coil unit according to the present invention, Fig. 2 is a partially cutaway plan view of the same, and Fig. 3 is a partially cutaway plan view of the fan coil unit according to the present invention.
The figure is a partially cutaway view of the same valve portion. Explanation of symbols, 1... Instrument housing, 2... Sirotskov fan, 3... Heat exchange coil, 4... Partition plate, 5...
Drain pan, 6... Suction port support frame, 7... Suction port, 8... Air filter, 9... Suction pipe, 10... Support rod, 11... External cylinder frame, 12...
...Air outlet, 13...Valve operation window, 14...Drain drain pipe, 15...Adjustment screw, M...Electric motor,
P...pipe, B...valve.

Claims (1)

[Scope of utility model registration request] An annular heat exchanger coil 3 is arranged in the upper part of the housing 1, and an annular heat exchange coil 3 is arranged around the entire circumference of the fan to form a round shape, and a drain pan is installed in the lower circumferential part of the heat exchange coil 3. A suction port support frame 6 is provided extending below the air guide plate 4, and a suction port 7 and an air filter 8 are removably fitted to the bottom surface of this frame. A cylindrical suction guide cylinder 9 is fitted through a support rod 10 so as to be vertically movable and adjustable, and a large diameter cylindrical external cylinder frame 11 is attached to the outer periphery of the suction guide cylinder 9 so as to be vertically movable. A cassette-type fan coil unit for being embedded in the ceiling, which is telescopically fitted onto the outside and has an air outlet 12 formed outside the suction guide cylinder 9.