JPH0531055B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a noise reduction section and a rectification section in the air passage in the lower part of the machine body, in front of the outlet of the blower, to reduce the noise of the air flowing through the machine. This article relates to an ultra-low noise air conditioner that aims to completely suppress oscillations and rectify air flow.

[Conventional technology]

Normally, in order to prevent the noise generated inside the machine from leaking out into the room, most of the air conditioners installed indoors have a noise-reducing part installed near the inside of the air outlet. A sound deadening mechanism is appropriately arranged within the section.

However, in recent years, it has become difficult to completely suppress noise using only the above-mentioned silencing mechanism in rooms where noise is a problem, such as in hospitals, hotels, and laboratories. The challenge was to develop a noiseless air conditioner.

[Problem to be solved by the invention]

In view of the above-mentioned problems, the present invention aims to solve the problem in the air outlet of the blower, which is said to be the cause of noise and vibration.
Focusing on the fact that noise and noise can be significantly reduced by forming an empty part in front of the outlet that is larger than the diameter of the outlet, a blower is installed below the fuselage, and the It is an object of the present invention to provide a so-called ultra-low noise air conditioner in which a large-scale silencing section is formed in the front part of the outlet and a rectifying mechanism is provided in the air passage.

[Means to solve the problem]

In order to achieve the above object, the present invention divides the inside of the fuselage 1 into a blower chamber 3 and a heat exchange chamber 4 using a partition plate 2 as shown in the drawings, and installs a blower 7 in the blower chamber 3 on one side. A heat exchange coil 8 in the heat exchange chamber 4,
While arranging various mechanisms such as the drain pan 9,
A silencing chamber 11 is formed in front of the air outlet a of the blower 7 and below the heat exchange chamber 4, and a part of the air passage b at the front of the heat exchange coil 8 that communicates with the silencing chamber 11. Its feature is that a rectifying mechanism 12 is provided in the.

[Effect]

In the above configuration, the air introduced into the blower chamber 3 from the upper suction port 16 flows back into the silencing chamber 11 from the blower outlet a by the operation of the blower 7, suppressing noise, and this air flows into the blower passage b. The rectifying mechanism 12 rectifies the flow while ensuring that the flow is conducted to the heat exchange coil 8, and heat exchange is performed at an appropriate temperature.

Furthermore, the heat-exchanged cooling and heating air flow is passed through the upper partition plate 13.
The upper silencing chamber 14 formed in the upper part flows into the room to further prevent noise from flowing in the passageway and to blow quiet cool and warm air with almost no noise into the room. It is possible.

〔Example〕

Hereinafter, a detailed description will be given with reference to the drawings illustrating embodiments of the present invention. 1 is a machine body whose interior is partitioned into a blower chamber 3 and a heat exchange chamber 4 on the left and right by a partition plate 2; inside the blower chamber 3; A filter 5, an electric motor 6, and a blower 7 are installed below, and various mechanisms such as a heat exchange coil 8, a drain pan 9, a humidifier 10, etc. are placed inside one of the heat exchange chambers 4, respectively.

In such a structure, the heat exchange chamber 4 is located in front of the air outlet a of the air blower 7, that is, below the drain pan 9.
A silencing chamber 11 of a considerable area is formed in the lower part of the silica.

Further, the drain pan 9 is biased to one side, an air blowing passage b is formed in communication with the sound damping chamber 11 and the front part of the heat exchange coil 8, and an appropriately shaped rectifying mechanism 1 is formed in the air blowing passage b.
2 is installed to form an airflow flowing through the air passage b to smoothly and well guide the air flow to the heat exchange coil 8, and an upper silencing chamber is installed between the upper partition plate 13 of the heat exchange coil 8 and the air outlet 15. Form 14.

Although omitted in the illustrated example, a silencing member corresponding to the noise value, a silencing mechanism in an appropriate shape, etc. are arranged in the silencing chamber 11 and the upper silencing chamber 14 in front of the air blowing outlet a. Needless to say.

In the figure, reference numeral 16 indicates a suction port, and 17 and 18 indicate piping portions.

In some cases, it may be possible to further connect a sound deadening chamber to the top or front of the suction port 16 and the blowout port 15.

FIG. 2 shows another embodiment using the basic configuration of the present invention, in which a silencing chamber 11 is formed below the fuselage 1, that is, below the blower chamber 3 and the heat exchange chamber 4,
The air blower 7 has a blower outlet a which is opened downward and communicates with the silencing chamber 11.

〔Effect of the invention〕

As described above, the ultra-low noise type air conditioner according to the present invention includes the blower 7 installed below the body 1, and the sound-deadening chamber 11 formed in front of the air outlet a of the blower 7. Since the rectifying mechanism 12 is provided in the air blowing passage b communicating with the air blowing passage b, it is possible to suppress the noise generated from the air blowing outlet a and at the same time to achieve ideal air rectification in the heat exchange room. You get it.

Therefore, not only can the generation of noise inside the machine be completely and reliably suppressed, but also heat exchange is extremely economical and effective due to the rectification effect of the rectification mechanism, making it an ultra-noise air system that is ideal for energy-saving equipment. Let's call it a harmonizer.

Furthermore, since the power parts such as the blower 7 are installed below the fuselage, the installation stability is very good, and maintenance and other operations are easy.

[Brief explanation of the drawing]

FIG. 1 is a front view showing the internal structure of a low-noise air conditioner according to the present invention, and FIG. 2 is a front view showing another embodiment of the same. Explanation of symbols, 1...Airframe, 7...Blower, 8...
... Heat exchange coil, 9 ... Drain pan, 11 ... Sound deadening chamber, 12 ... Rectification mechanism, 14 ... Upper sound deadening chamber,
a...Blower outlet, b...Blower path.

Claims (1)

[Scope of Claims] 1 The inside of the fuselage 1 is divided into a blower chamber 3 and a heat exchange chamber 4 by a partition plate 2, and a blower 7 is installed below the blower chamber 3, while a heat exchange coil is installed inside the heat exchange chamber 4. 8. In addition to arranging various mechanisms such as the drain pan 9, a silencing chamber 11 is formed in front of the air outlet a of the blower 7 and below the heat exchange chamber 4, and further communicates with the silencing chamber 11. Air blow path b in front of heat exchange coil 8
An ultra-low noise type air conditioner characterized in that a rectifying mechanism 12 is provided in a part of the air conditioner. 2 The inside of the fuselage 1 is divided into a blower room 3 and a heat exchange room 4 by a partition plate 2, a blower 7 is installed in the lower part of the blower room 3, and a noise-reducing device is installed in front of the blower outlet a of the blower 7. In an air conditioner having a chamber 11, an upper silencing chamber 14 is formed by an upper partition plate 13 above the heat exchange coil 8 disposed in the heat exchange chamber 4, and a primary air outlet and a secondary air outlet are provided in the air conditioner 1. The ultra-low noise air conditioner according to claim 1, characterized in that a side muffling section is provided. 3. As mentioned above, the inside of the fuselage 1 is divided into a blower room 3 and a heat exchange room 4 by the partition plate 2, and a blower 7 is placed in the lower part of the blower room 3, and a heat exchange coil 8 is placed in the heat exchange room 4. In an air conditioner in which a rectifying mechanism 12 is provided in front of the heat exchange coil 8,
A silencing chamber 11 is formed below the blower chamber 3 and the heat exchange chamber 4, and the blowing outlet a of the blower 7 is opened and communicated with the silencing chamber 11. Ultra-low noise air conditioner.