DE2248550A1 - AIR CONDITIONING UNIT TO BE MOUNTED IN A PITCH OR WINDOW - Google Patents

Description

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sen. 8l-19.471P (19.472H) October 4, 1972

HITACHI Ltd .. Tokyo (Japan)

Air conditioning unit that can be installed in a wall opening or window

The invention relates to an amd breakthrough in one or a window-mountable air conditioner and, in particular, improvements to its housing.

Air conditioners of this type generally have one Cooling device with a compressor, a condenser, a device for controlling the refrigerant and an evaporator; a fan device having fans and fan motors; and an interior of the housing into an interior and an outer chamber dividing partition, the condenser and the evaporator each in the outer and are mounted in the inner chamber and air conditioning in the room by circulating the air through the condenser and the vaporizer is reached. With such

81- (Item 28789) -Sd-r (9)

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Devices, it is important to contain major noises that are generated by the compressor and transmitted to the outside, because air conditioners equipped with such compressors usually cause an undesirable large amount of noise.

The subject of the invention is an extremely simple one built-in air conditioner in which the compressor caused noise is largely contained. In the air conditioner according to the invention, two partitions divide one Interior of the housing into an inner chamber, a middle intermediate chamber and into an outer chamber, the compressor is mounted in the middle intermediate chamber.

According to the invention, the air conditioner consists of an inner chamber, one closed by two partition walls middle chamber and an outer chamber divided housing. It has air inlet and outlet openings, and fans in the inner and outer chambers and heat exchangers in the air ducts of each fan, one in the enclosed chamber-mounted compressor that put together forms a cooling system with the heat exchangers.

Further features and advantages of the air conditioner according to the invention emerge from the following description of an exemplary embodiment based on the drawing. It shows

1 shows a simplified representation of an air conditioner according to the invention;

FIG. 2 shows a section through the device according to FIG. 1 along the line H-II in Pig. 1 y

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3 shows a section along the section line IH = III in Fig. 2.

The air conditioner according to the invention shown in the drawing comprises a housing _t which can be mounted in a DurcüforucSa or a window -2a of a building wall 2. In the installed state, the housing is divided into an interior sector located in the room to be air-conditioned and an outwardly extending part. Protective and decorative cover 3 is raomtiert in siia © r Öttnui & g ^{1 of} the housing front part ₉ äeT since © insr EisistrliES « = opening 3a and a LuftabstrOEiöffraang 3 ^ -weTsehon is »The opposite rear part of the housing is provided with q ± uqt air inlet ^{opening 1a:} and d ± © b © idsn Gshäuseseiteii old air flow openings 1b and 1c ₀ A" first wall 4 and a second partition 5. are isa Gshäus © net and subdivide its Iraiemramm ± n © im © an outer chamber 7 and a © gesclilossesae The first partition 4 di © at sue ⁵ AnasTbildfoasag the 6 and the closed aa, Saaaer 8 and di © sxi © it © iJasad 5 for education der AtiBesikaaarasr 7 Bad d © s ° agosolilossQsi © E! i Keei = mer 8.

A centrifugal fan) 9 ₉ ^ ₀ B ₀ ® ± m "Silocco ^w = .G © bläsQ _s is located in the iaa © ini £ iaitig © a EaBBor 6 and leads di © through the inlet opening 3®, In di © ± nm © NM® t ± ± G® IIB, mm <BS · g = © air flowed from the Öfffiiaag 3b from "It is, of course, v © 2p · _f = understandable that to klimatisioread © Isasaesas'auiiluft VOA ©© · = bubble 9 is the ijanan side © liaBJHä © r <3 ± & {g®sangt odor © iHHgQso · = gen. A the blower 9 ■ »Bag © b®iad © s Spi'2ral (g®liäTas © 10 τ-7 ± τ · Ύ from an orifice ring 10a in front of the GsbllsQ ^ d © r © rst © sa Τ wall 4 behind the G- © biäs © nand © ija®ra Spiralgli © d 10b

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formed its sides. The orifice ring 10a has a suction opening 10c for the fan and the spiral member 10b an outlet 10d which is connected to the discharge opening 3b of the lid 3 is facing. An evaporator 11 is arranged on the suction side 10 of the fan 9 and serves to cool the sucked through Indoor air.

A double suction centrifugal fan 12, e.g. B. a "Silocco" blower "is in the outside chamber 7 arranged in such a way that the outside air is sucked in from the front and rear sides of the fan and this Suction air is discharged to the side. A volute casing 13 surrounds the fan and consists of an orifice ring 13a behind the fan 12, the second partition wall 5 in front of the fan and spiral members 13b, 13c on its side part. Of the Muzzle ring 13a contains a suction opening 13d for the fan, and the scroll members 13b and 13c form the outlet ports Ib, 1c of the housing 1 facing discharge openings 13e »13f. The second partition 5 has a suction opening 13g for the fan 12. The two spiral members 13b and 13c are symmetrical to the fan axis.

A condenser Ik is arranged on one of the suction sides of the fan 12 and serves to dissipate heat to the outside air. A motor 1.5, directly connected to the fans 9 and 12, for driving the fans is located in the enclosed chamber 8. A compressor 16 also provided in the enclosed chamber 8, together with the evaporator 11 and the condenser Ik, forms a cooling system. A condensed dew collecting tray 17 is located immediately below the evaporator 11 and takes the condensed on the outer surface of the evaporator and from this

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dripping dew on. The water collected in the bowl 17 is discharged below the outside chamber 7 through a line 18. A slinger 19 is for spraying or spraying the condensed water against the condenser directly connected to the shaft of the fan 12.

To the functions as in a window or wall breakthrough In order to be able to meet the installed air conditioning unit, at least one partition plate installed in the housing chamber is required, to divide the interior of the housing into an inside and an outside chamber. The privilege the invention is in particular that the closed chamber by the further installation of only a second, from the first removed partition into the interior of the housing is formed «by just one more partition not only is the construction simpler and the production more economical, but also through the arrangement of the enclosed chamber between the inside and the outer chamber to isolate both chambers is of The noise level generated by the fan mounted in the inside chamber is reduced considerably when its noise becomes one outside person and the noise level generated by the fan mounted in the outer chamber is also greatly reduced when its noise comes to a person in the interior.

Further, when the compressor is tightly surrounded with a sound insulation material to reduce noise, the temperature generated by the compressor increases and the problem of electrical short-circuiting of the lead wires arises. However, when formed in an air conditioner according to the invention a sealed chamber through the walls of _r is then the problem of the electron-

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Irish short circuit largely resolved due to the inflow of outside air into the enclosed chamber.

In the event that the increase in temperature of the compressor becomes problematic, it is desirable to have a vent hole to be provided on the enclosed chamber. Because the heat radiation in the compressor is forced to the outside air can be, if the vent hole is arranged in the ventilation duct, an increase in temperature of the Compressor can not only be positively prevented »but the temperature of the indoor air to be air-conditioned can also be kept in a word that is pleasant to the people in the room.

Heretofore, a propeller fan has been used as a fan of the outside air conveying means. Towards one Centrifugal fan, a propeller fan (axial fan) is simply constructed, however, the use of a centrifugal fan s is more desirable to reduce fan noise. The advantage of the invention results in that the enclosed chamber defined by the walls serves as a central housing of the fan when the centrifugal fan is used as an outside fan. Therefore, especially when using a centrifugal fan the device according to the invention be extremely simple.

The air conditioner according to the invention has only an iron engine to drive the inner and outer fan, because there is inner Fan is closed from the outer fan and both Blower connected directly to the engine. Furthermore, the Compressor arranged directly next to the engine. The arrival

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Ordering the fan motor in the enclosed chamber, in which the compressor is located, serves to simplify the air conditioning unit and more effective use of the interior space of the closed chamber formed by the two partition walls _o This results in a reduction in the noise generated by the fan motor.

Since a considerable air flow is necessary to maintain the desired condensate orwdrkusig ₉ compared to the evaporator, a large amount of the centrifugal fan is required if the centrifugal fan is used as an external fan - and in addition to the condenser, the fan also cools the compressor however, is impossible to enlarge the fan zn. ₀ because the larger fan cannot be built into the housing of a piece of equipment which is in the window of a building. This means that the size of the housing is limited ο the Erfiadtaag v®3rt -j © ndet ® ± u double suction centrifugal fan as and achieves the cooling of the
opening of the closed © ae3ia It &, wm®x ^> In arrangement to eisier Seit © d © s & eblä, s © 3o. Bi © © ia © S © ltQ the blower becomes a heat aiastatasca d @ s ESosadssasapors issd m @ ± m® other side for cooling the KoiapmsiSiors VQE ¹ Y-JQSIdQt ₀ S © ait increases the flow rate d®s AwiSQsagsblaeQii chilled

With window-mounted. Kliiaag © advises © 3a to direct the condensed dew into the auaßQas © it ± jg © Ka »aQ2r % n , after the dew collected in a bowl at the Y@rasmpf®Ttlä.oho nnü slub passed the chamber © a ± mt ₀ l ^ fijmdiaagGgoai. © blows

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the centrifugal blower connected to the shaft of the centrifugal fan pulls the rope directed to the outside chamber against the condenser. This makes it possible to increase the heat exchange of the condenser, together with a treatment of the condensed water.

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Claims (3)

Expectations (1./ Air conditioning unit mounted in a window or a wall opening with a housing, fans, heat exchangers and a compressor, characterized in that the housing is made up of two partition walls (4, 5) in an inside chamber (6), a middle closed one Chamber (8) and an outer chamber (7) is divided, the inner and outer chambers (6; 7) air inflow openings (iOc; 13d, 13g) and Air outflow openings (iOb; 13e, 1'3f) and in them blowers (9t 12) are mounted so that heat exchangers (11, 14) each of the fans are arranged in the air duct and that a compressor is provided in the closed chamber (8) which together with the heat exchangers (11, 14) forms the cooling system. 2. Air conditioner according to claim 1, characterized in that the closed chamber (8) has air inlet openings. 3 · Air conditioner according to claim 1, characterized in that a motor (i5) is arranged in the closed chamber (8) and is directly connected to the fans (9, 12). 4. Air conditioner according to claim 1 to 3 »characterized in that that the fan (11, i4) are centrifugal and that a spiral housing (10). around the centrifugal fan , (<?) is mounted in the inside chamber (6), which one of the partitions (4) comprises .. 30 98 3 5/0355 5. Air conditioner according to one of the preceding claims, characterized in that the fan (12) is in the outer chamber is a two-sided suction centrifugal fan, and its two suction parts each with an air inlet opening of the Communicates outer chamber and the openings of the closed chamber, 6. Air conditioner according to one or more of the preceding claims, characterized in that a condenser ( Ik) is arranged in the air duct of the outer fan (12) and an evaporator in the air duct of the inside fan (9) and that a Tausammei shell (17) directly is provided below the evaporator (11) and is connected to the outer chamber via a line (18) and a centrifugal ring (19) is arranged between the outer fan (12) and the condenser (i4) and is connected to the fan shaft 3 0 9835/0 3 55 Blank page