JPH031708Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is a sound-absorbing chamber that supplies fresh air to many rooms such as buildings, and also completely and reliably eliminates the noise and vibration generated when the air is blown. Regarding air conditioners.

[Conventional technology]

Conventionally, air conditioners generate various noises inside the machine and leak out when blowing air, and this has been considered a serious problem especially in indoor rooms that require a quiet environment, such as hospitals and laboratories. Ta.

As a means to eliminate such noise and vibration, noise-muffling boards have recently been installed in some of the in-flight ventilation passages.
Providing sound deadening plates protruding into the ventilation passage has the disadvantage that the air blowing sound is reflected and bent by each sound deadening plate during ventilation, and this amplifies and rather than suppressing vibration noise, it further promotes the generation of noise. It was hot.

[The problem that the idea attempts to solve]

In view of the above-mentioned drawbacks, the present invention completely eliminates the noise leaking into the room when air is blown inside the aircraft by installing an extremely simple equipment mechanism, which is equivalent to almost complete silence as an indoor air conditioner. Its main purpose is to provide air conditioners.

[Means to solve the problem]

In order to achieve the above object, the air conditioner with a noise-reducing chamber according to the present invention has an air inlet and an air outlet in the upper part, and communicates the air inlet and the outlet in the machine to form a U-shaped ventilation passage. At the same time, a silencing mechanism is provided inside the upper part of the air conditioner main body, in which various devices such as a heat exchange coil and a blower are arranged in the U-shaped ventilation passage, and the upper front or side surface is The invention is characterized in that a sound deadening chamber formed by opening a duct connection portion at an appropriate location is integrally arranged and connected.

[Effect]

Fresh air or room air from the duct flows into the air conditioner from one side of the silencing chamber, and while being appropriately heat exchanged inside the machine, it flows through the silencing chamber on one side to the other duct, and is distributed to each room. The purpose is to distribute and distribute predetermined cold and warm air almost completely silently.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is an air conditioner main body with a partition plate 2 forming a heat exchange chamber 3 on one side and a ventilation chamber 4 on the other side, and the partition plate 2 An opening 5 is opened at the bottom to communicate the two chambers to form a U-shaped ventilation passage b inside the machine.

The upper part of the U-shaped ventilation passage b communicates with the air inlet 6 and the air inlet 7, and the heat exchange coil 8, drain pan 9, and humidifier 10 are installed in the heat exchange chamber 3, and the blower 11 is installed in the ventilation chamber 4. , eliminator 12, and other mechanisms are respectively arranged.

Although not shown in the drawings, it goes without saying that a main filter and a pre-filter are respectively arranged in necessary parts of the room.

The sound-deadening chamber 13 is a box-like structure whose center is divided into left and right parts by a partition wall 14, and inlet/outlet ventilation walls 15, 16 are formed on both sides. Each has an opening,
Furthermore, openings 19 and 20 for connection to the intake and exhaust ducts are provided at appropriate locations such as the upper front surface, side surfaces, and rear surface.

Further, a sound absorbing material 21 is installed on the entire inner wall surface of the ventilation chambers 15 and 16, and the ventilation passages a,
It has the function of absorbing noise from the air flowing through a′.

As shown in the second figure, inside the sound deadening chamber 13, a sound deadening mechanism consisting of a substantially triangular protrusion 22 whose entire outer peripheral surface is coated with a sound absorbing material 21 is provided in a protruding manner so as to create a C-shaped air blower inside the machine. By forming the passage c, a more effective sound deadening effect can be expected.

Further, depending on the case, it may be possible to arrange a filter mechanism in one of the above-mentioned rooms and use it as a filter room.

In the present invention, the sound deadening chamber 13 having the above structure is removably connected to the upper air inlet 6 and air inlet 7 of the air conditioner main body 1 either directly or through some kind of connector, thereby creating an integrated structure between the two. The circulating air from the duct (arrow A) passes through the ventilation passage a in the noise-reducing chamber 13, and is routed from the air intake port 6 of the air conditioner body 1 into the U-shaped ventilation passage b inside the machine. After proper heat exchange, this air flows from the air inlet 7 through the air passage a' in the noise-reducing chamber 13 to the direction of the duct (arrow B), supplying and distributing ideal cooling and heating into the room. It is.

The noise generated when the air is vented is absorbed by the sound absorbing material 21 and the protrusions 22 in the sound deadening chamber 13.
The sound absorbing mechanism completely absorbs and eliminates the sound, so that air can be completely and reliably flowed almost silently.

[Effect of idea]

As described above, the present invention has a sound deadening chamber integrally connected to the upper part of the air conditioner body which forms a U-shaped ventilation passage inside, so the ventilation passage becomes very long, and there is no natural sound deadening between them. Of course, by making the ventilation passage in the sound deadening chamber substantially C-shaped, the ventilation passage can be made longer in combination with the U-shaped ventilation passage, and a more effective sound-damping effect can be reliably expected. be.

Moreover, since the connection opening with the duct is provided in the upper part of the sound deadening chamber, when the duct is connected, this part is hidden in the ceiling, giving an extremely good design feeling in the room.

In addition, in places such as factories, stations, etc. where the noise reduction effect is not so necessary, a small amount of sound-absorbing material can be simply pasted inside the above-mentioned noise reduction chamber. It also has the advantage of exhibiting a sound-deadening effect and being extremely economical.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the air conditioner with a sound damping chamber according to the present invention, with FIG. 1 being a front view and FIG. 2 being a longitudinal sectional side view of the sound damping chamber showing another embodiment. Explanation of symbols, 1... Air conditioner body, 13...
Sound deadening chamber, a, b, c... ventilation passage.

Claims (1)

[Scope of Claim for Utility Model Registration] An air inlet and an air outlet are opened in the upper part, and the air inlet and the outlet are communicated with each other in the machine to form a U-shaped ventilation passage, and inside the U-shaped ventilation passage. A noise reduction mechanism is installed inside the upper part of the air conditioner main body, in which various equipment such as a heat exchange coil and a blower are installed, and a duct connection part is opened at an appropriate location such as the front or side of the upper part. An air conditioner with a sound deadening chamber, characterized in that the sound deadening chambers are integrally arranged. Claim No. 1, characterized in that a protrusion whose entire outer peripheral surface is coated with a sound-absorbing material is protrudingly provided in the internal ventilation passage of the sound-deadening chamber, and a substantially C-shaped ventilation passage is formed in the housing. Air conditioner with a sound-deadening chamber as described in Section 1.