JPS5938656Y2 - air conditioner - Google Patents

Description

[Detailed explanation of the idea] This proposal concerns the improvement of air conditioners.

The applicant has already published Japanese Patent Application No. 10193/1983 to provide an air conditioner having a cooling chamber that is compact in the vertical direction by providing a fan casing over an evaporator installed in the cooling chamber and eliminating unnecessary wind tunnels. I am proposing a machine.

However, in general air conditioners, the back of the outer box faces the outdoors or is often installed close to the mounting surface, so it is not possible to form a main body suction port on the back of the cooling chamber. Accordingly, there was a problem in that an evaporator could not be provided on the back side, and the cooling capacity was limited.

This proposal was made to solve such problems, and one embodiment thereof will be described below based on the drawings. In the perspective view of the machine, the front panel 1 has an operating knob 3, a grill-shaped front suction port 4, and a grill-shaped front air outlet 5, and the outer box 2 has a grill-shaped side suction port 6 on both side walls. It is attached to a shielding plate 8 fixed to the window frame 1 via a condenser 9, which will be described later, and a duct 10 for intake and exhaust of outdoor air for cooling.

FIG. 2 is a perspective view with the front panel 1 removed and the upper half of both side walls and back wall of the outer box 2 cut away. A machine room 13 containing a fan casing 12, etc., containing a sirocco fan (not shown), an upper condensation tray 14, and a front section 15a and both side sections 15b, 15b placed horizontally above the condensation tray. and a drum-type evaporator 15 consisting of a rear part 15c and a cooling chamber 18 that is placed on top of the evaporator and that houses a fan casing 17 and the like that houses a sirocco fan 16 for indoor air circulation. .

As shown in FIG. 3, the fan casing 17
A flat side plate 20 having a fan nozzle hole 19, a spiral side plate 22 which is erected on the upper surface of the end plate and has a discharge port 21 facing the front side air outlet 5 in a part of the front surface, and a cooling chamber 18 from around the side plate. The spiral side plate 22 and the overhang plate 2 are integrally molded with synthetic resin.
3 and the overhang plate 23 form a cavity 24, and the overhang plate 2
Primary suction ports 25, 25 are provided on both side edges of 3, and secondary suction ports 26 are provided on the back edge.

The drum-type evaporator 15 is formed by winding a heat exchange pipe 27 with spine fins into a substantially rectangular shape and stacking them in multiple stages, including a front part 15a and both side parts 15b.

The fan casing 15b is arranged in two rows, and the rear part 15c is arranged in one row.
7 is mounted, the primary suction port 25.25 and the secondary suction port 26... are on both side surfaces 15b of the drum type evaporator 15
, 15b and the outer side I of the back surface portion 15c, respectively.

Furthermore, when the drum-type evaporator 15 and fan casing 17 are housed in the outer box 2, the side-side suction ports 6 formed on both side walls of the outer case 2 are connected to both side surfaces 15b of the drum-type evaporator 15.
, 15b, and the front side suction port 4 face the front side 15a of the drum-type evaporator 15, respectively, and the peripheral edge of the fan casing 17 is in contact with the inner wall surface of the outer box 2 to form a spiral side plate. 22 and the cavity 24 are configured to form independent spatial regions, respectively.

Therefore, the main air flow path is 4-15°＼19 and the angle is 6→15.
b/ This means that the auxiliary air flow path is formed in the order of 6→25→24→26→15c→19.

Reference numeral 28 denotes a partition plate that partitions the mechanical 13 and the cooling chamber 18, and a coaxial electric motor (not shown) that drives the sirocco fan for forced cooling of the condenser 9 and the sirocco fan 16 for indoor air circulation is mounted on the end plate. (1) is housed in the inner space of the drum-type evaporator 15 in a fixedly supported state.

In such a configuration, when the compressor 11 is operated and the coaxial motor is driven, outdoor air is drawn into the machine room 1 through the suction/exhaust duct 10 due to the rotation of the forced cooling sirocco fan.
3, cools the condenser 9, and returns to the suction/exhaust duct 1.
0 to the outside, and at the same time, indoor air flows through the main air flow path due to the rotation of the circulation sirocco fan 16.

That is, the air is sucked in through the suction ports 4 and 6 on the front and side sides of the main body, and the air is sucked into the front part 15a and both side parts 1 of the drum-type evaporator 15.
5b, 15b and is cooled, after which it rises through the inner space of the drum type evaporator 15 and is sucked into the circulation sirocco fan 16 through the fan nozzle hole 19.

Thereafter, it is sent out from the discharge port 21 into the room via the front side blow-off port 5.

In this case, the drum type evaporator 15 has both sides 1 as described above.
Since the back section 15c is arranged in one row compared to the two rows of 5b and 15b, there is less ventilation resistance on the back side than on both sides.
A portion of the indoor air taken in through the side suction port 6 flows through the auxiliary air flow path.

That is, as shown by the arrow shown in FIG. 4, after rising from the primary suction port 25° 25 and being introduced into the cavity 24, the secondary suction port 26...
- It descends further and is guided to the back side of the drum-type evaporator 15, passes through the back side 15c of this evaporator, is cooled, and is then sucked into the fan 16 through the nozzle hole 19.

Thereafter, the indoor air is sent into the room together with the cold air that has been flowing through the main air flow path, and the indoor air is efficiently exchanged heat with the entire surface of the drum-type evaporator 15.

As mentioned above, the interior of the casing formed by the front panel and the outer box is divided into an upper part and a lower part by a partition plate, the upper part is used as a cooling chamber where the drum-type evaporator is housed, and the lower part is used as a cooling chamber for storing the drum-type evaporator. The cooling room is a machine room in which the evaporator, condenser, and cooling fan are housed, and this cooling room includes a flat side plate with a fan nozzle hole located above the evaporator, and a flat side plate with a fan nozzle hole located above the evaporator, and a flat side plate located on the upper surface of this flat side plate, which is connected to the indoor air. In an air conditioner that houses a fan casing having a spiral side plate with a discharge date for housing a circulation sirocco fan, and is equipped with a front side outlet corresponding to this discharge outlet, the front side of the drum-type evaporator is A corresponding front side suction port is provided on the front panel, and side side suction ports corresponding to both side surfaces of this evaporator are provided on the outer box to form a main air flow path through which indoor air is sucked into the fan nozzle hole. A projecting plate extending from the periphery of the spiral side plate to the outer box of the cooling chamber is provided in the casing, and a primary suction port is provided on both sides of this projecting plate, and a secondary suction port is provided on the rear side. Since the suction port, the primary suction port, the secondary suction port, and the back of the drum-type evaporator are sequentially arranged to form an auxiliary air flow path through which room air is sucked into the fan nozzle hole, the cooling chamber is vertically aligned. It is possible to provide a compact air conditioner, and without having to provide a suction port on the back of the cooling room, it is possible to efficiently exchange heat between the back of the evaporator and the room air, improving the heat exchange capacity. Since no separate suction port is provided in the outer box, the structure is simple, and it is particularly suitable for use in air conditioners where the back surface of the main body faces outdoors or is mounted close to the mounting surface.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing the installed state of the proposed air conditioner;
The figure is a partially cutaway perspective view of the air conditioner with the front panel removed, FIG. 3 is an exploded perspective view of the main part thereof, and FIG. 4 is a cross-sectional view thereof. 1...Front panel, 2...Outer box, 4...
...Front side suction port, 5...Front side air outlet, 6...Side side suction port, 9...Condenser, 11...・Compressor, 13...Machine room,
15...Drum type evaporator, 15a...
Front part, 15b, 15b...Both side parts, 15c
...Back part, 16...Sirocco fan, 17...Fan casing, 18...
・Cooling chamber, 19...Fan nozzle hole, 20...
...Sub side plate, 21...Discharge port, 22...
... spiral side plate, 23 ... overhanging board, 25 ...
...-Secondary suction port, 26...Secondary suction port.

Claims (1)

[Scope of utility model registration request] The inside of the casing formed by the front panel and the outer box is divided into an upper part and a lower part by a partition plate, and the upper part is used as a cooling chamber where the drum-type evaporator is housed, and the lower part is used as a cooling chamber for storing the compressor, condenser, etc. In addition to being a machine room in which a cooling fan is housed, this cooling room includes a flat side plate with a fan nozzle hole located above the evaporator, and a sirocco fan for indoor air circulation located on the top surface of this side plate. An air conditioner containing a fan casing having a spiral side plate with a discharge port and a front side outlet corresponding to the discharge port, the air conditioner having a front side outlet corresponding to the front side of the drum-type evaporator. A front side suction port is provided on the front panel, and side side suction ports corresponding to both side surfaces of this evaporator are provided on the outer box to form a main air flow path through which room air is sucked into the fan nozzle hole. A projecting plate extending from the periphery of the spiral side plate to the outer box of the cooling chamber is provided, and a primary suction port is provided on both sides of the projecting plate, and a secondary suction port is provided on the back side of the projecting plate. An air conditioner characterized in that a side suction port, a primary suction port, a secondary suction port, and a rear part of a drum-type evaporator are successively repeated to form an auxiliary air flow path through which indoor air is sucked into a fan nozzle hole.