JP2530293B2 - Ultra low noise air conditioner - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for installation in a hall having a vast area, and is particularly suitable for indoor use where noise is a concern, such as in exhibition halls and music halls. Type air conditioner.

[0002]

2. Description of the Related Art Recently, an air conditioner such as the above-mentioned music hall, which has various muffling mechanisms attached to the main body of the air conditioner, has been developed for the purpose of eliminating a noise generated during indoor air conditioning and seeking a quiet environment. Being developed. However, most of these air conditioners have several blowers arranged in series in a substantially straight air passage formed inside the air conditioner, so many silencers are installed in the air passage near the air outlet. Even if it does, even though the blower is rotating at high speed and high pressure due to the high static pressure air conditioning in the hall, it naturally consumes a large amount of power and is uneconomical. It has a serious drawback that a good sound deadening effect cannot be obtained.

[0003]

SUMMARY OF THE INVENTION The present invention is intended to fundamentally solve the above-mentioned problems, in which the air blow passage is formed in an annular air blow passage to form a long air blow distance in the machine. , The noise that flows out with the air during the air circulation is naturally eliminated, and the noise that is generated inside the machine due to the low speed rotation of the blower can be reduced, and the operation can be performed with the least electric power. Its main purpose is to provide an extremely economical ultra-low noise type air conditioner.

[0004]

SUMMARY OF THE INVENTION The present invention was developed in view of the above-mentioned object, and is provided with a return air port 2 on one side of an upper portion of a machine body 1 and a blower port 3 in the same row, and several sheets are provided inside the machine. The partition walls of the fan chambers A and B on both the left and right sides, the heat exchanger chamber C between the left and right fan chambers A and B, and the filter chamber F and the rectifying and silencing mechanism 8 having an appropriate shape above the above chambers. A plurality of muffling chambers D, D, D having 8 arranged therein are connected to each other, and a blower 4 for returning air is provided in the blower chamber A, and a blower 4 for blowing air in one blower chamber B. The blower 5 is cooled in the heat exchanger chamber C, the hot water heat exchange coil 6 is pre-loaded in the filter chamber F,
The medium performance filters 7 and 7 are respectively arranged, and the return air port 2 and the blower port 3 are communicated with each other so that they are connected to each other through the chambers A to F by an annular blower passage.

Further, in addition to the sound deadening mechanism 8, 8, 8 which is installed inside the machine by integrally connecting the sound deadening chamber 9 to the upper part of the machine body 1 which is connected and formed in the machine by an annular air passage, A good low noise silencing effect can be obtained.

[0006]

Next, the operation will be described. With the operation of the blowers 4 and 5 installed on both the left and right sides in the annular blower passage, the air on the indoor side recirculates from the return air port 2 to the inside of the filter chamber F. While the filter 7 removes fine dust in the air, the heat exchange coil 6 in the heat exchanger chamber C performs heat exchange to an appropriate temperature,
The cold and warm air, which has been heat-exchanged to an appropriate temperature, is extruded by the blower 5 to pass through each of the muffling chambers D, D, D at the upper part, and is detoured to the upper part, and is blown from the ventilation port 3 to a predetermined temperature through a duct (not shown). It is possible to send the cold and warm air of the room to the room. Particularly, in the present invention, since the entire air passage is formed as an annular air passage in the machine, the air distance is naturally longer than that of a normal straight air passage. Naturally, the noise of the flowing noise is reduced, and at the same time, while rectifying the air to be sent by the action of the rectifying and silencing mechanism 8, 8, 8 in each of the silencing chambers D, D, D inside the body, It is possible to completely eliminate even the noise of noise that leaks out with the air, and to easily obtain a blast-like body with completely ultra-low noise. In addition, when it is necessary to take in outside air during the above operation, an outside air introduction duct is provided alongside the above-mentioned return air port 2 so that fresh outside air can be easily introduced into the cabin, and the indoor return air can be cooled and warmed by fresh outside air. It may be possible to send it to the room. Further, in the present invention, by using the pressure fans for the blowers 4 and 5, economical and ideal air-conditioning blow can be obtained without installing several blowers even in a room of a considerable area at low speed operation. It goes without saying.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A floor-standing terminal air conditioner exemplifying the constitution of an ultra-low noise type air conditioner according to the present invention will be described below.
Further, the blower openings 3 are provided in the same row, and the inside of the machine is provided with several partition walls to form the blower chambers A and B on the lower left and right sides, the heat exchanger chamber C between the left and right blower chambers A and B, and the above chambers. A filter chamber F and several muffling chambers D, D, D are formed in the upper part of the above, and these chambers are connected and communicated with each other by an annular air passage.
In addition, a blower 4 for return air is provided in the blower room A, a blower 5 for blower is provided in one blower room B, and a cooling, hot water heat exchange coil 6, a drain pan, and other mechanical devices are provided in the heat exchanger chamber C as a filter. Pre and medium performance filters 7 and 7 each having a predetermined shape are arranged in the chamber F, respectively. The blowers 4 and 5 may use a pressure fan depending on the case, and the discharge port 4a of one blower 4 is positioned in the forward direction, and the blower 5 on the other side has the discharge port 5a in the upper silencing chamber D direction. Each is open. Further, in each of the silencing chambers D, D, D, rectifying and silencing mechanisms 8, 8, 8 having an appropriate shape are arranged.

Further, a return air port 2 and a blower port 3 are provided in the upper part of the machine casing, and a muffling chamber 9 in which a muffling mechanism having an appropriate shape is arranged is integrally connected to the upper part of the machine body 1. With such a configuration, it is possible to more reliably and reliably eliminate the noise of the circulated air together with the rectifying and silencing mechanism 8, 8, 8 installed in the air passage. It should be noted that it is also a consideration to form the silencing chamber 9 in advance so that it can be assembled on site without being integrally formed, depending on the installation location and the like.

[0009]

As described above, the air conditioner according to the present invention is provided with the annular air-blowing passages in the entire inside of the air-conditioning apparatus, and the blowers 4 and 5 for returning air and air-blowing are installed on both lower sides of the air-blowing passages. Therefore, the circulation distance of the air flowing in the machine is naturally much longer than that of the straight air blowing passage, so that the air flows between the return air port 2 and the air blowing port 3 during the circulation of the air. It has the effect of naturally muffling the noise of the inside, and at the same time rectifying the flow inside the machine by the rectifying and muffling mechanism 8, 8, 8 and at the same time completely muffling the noise of the noise. Moreover, in the present invention, since the blowers 4 and 5 having a heavy weight are arranged on both lower sides of the annular blower passage, the stability is also very good, and the whole shape of the fuselage can be formed compactly. It also has a great effect such as.

Further, in the present invention, claims 2 and 3 are provided.
As described in the section above, the rectifying and silencing mechanisms 8, 8 and 8 of various shapes are provided in a large number of silencing chambers D, D, D, and the silencing chamber 9 is further connected to the upper part of the machine body 1 so that It can be expected to have a better and more reliable sound deadening effect in addition to the sound deadening effect of the sound deadening mechanism 8,8,8, and is an optimum air conditioner for a room for ultra-low noise such as in a music hall.

[Brief description of drawings]

FIG. 1 is a plan view showing an internal mechanism of an ultra-low noise type air conditioner according to the present invention,

FIG. 2 is a front view of the same.

[Explanation of symbols]

 1 Aircraft 2 Return air vent 3 Air blower 4 Return air blower 5 Air blower 6 Heat exchange coil 7 Filter 8 Rectifying and silencing mechanism 9 Muffler chamber A Blower room C Heat exchanger room D Silence room F Filter room

Claims (3)

(57) [Claims] 1. An air return port 2 is provided on one side of an upper part of a machine body 1, and a blower port 3 is provided in the same row. A plurality of partition walls are provided inside the machine to provide blower chambers A and B on the left and right sides, and the left and right blower chambers. A heat exchanger chamber C is provided between A and B, and a filter chamber F and sound deadening chambers D, D, and D are connected to each other at the upper part of each chamber, and a blower 4 for return air is provided in the blower chamber A. The air blower 5 is placed in one of the blower chambers B, the cold and hot water heat exchange coils 6 are placed in the heat exchanger chamber C, and the pre- and medium-performance filters 7 and 7 are placed in the filter chamber F. An ultra-low noise type air conditioner characterized in that the return air port 2 and the air blowing port 3 are communicated with each other to form a connection through an annular air blowing passage through each of the chambers A to F. 2. A rectifying and silencing mechanism 8, 8 having a proper shape in the silencing chamber D, which is connected and formed in the machine by an annular blowing passage.
The ultra-low noise type air conditioner according to claim 1, wherein an appropriate number of 8 is arranged. 3. A silencer in which a return air port 2 and a blower port 3 are provided in the upper part of the machine body 1 which is connected and formed by an annular ventilation passage in the machine and an appropriate sound deadening mechanism is arranged in the machine. The ultra low noise type air conditioner according to claim 1, wherein the chambers 9 are integrally connected.