JP2921498B2 - Silence chamber - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a sound deadening chamber.

[0002]

2. Description of the Related Art Conventionally, the interior of a muffling chamber interposed between an air conditioner and a duct is divided into an air blowing passage and an air suction passage, and both passages have the same length.

[0003]

However, since the blowout sound is generally higher than the suction sound, if the air blowout passage and the air suction passage are adjusted to the length required for silencing the blowout sound, the air suction passage is wasted. On the other hand, if the length of the air blowing passage and the air suction passage is adjusted to the length required for silencing the suction noise, there is a problem that the silencing ability of the blowing noise is reduced. Therefore, an object of the present invention is to provide a noise reduction chamber that solves these problems.

[0004]

In order to achieve the above object, a muffling chamber according to the present invention is a muffling chamber interposed between an air conditioner and a duct, and is provided with a suction port and an air outlet on the duct side. a box-shaped chamber body having an inlet and outlet of the air conditioner side, with the air inside of the chamber body
Bisected into outlet passage and the air suction passage, to form the air outlet passage communicating with the duct side air outlet and the air conditioner-side outlet, in an L-shape along the two adjacent inner surface of the chamber body and Directly bend or bend up, down, left and right
It provided a protruding member having appropriately along the corner portion of the L-shaped air outlet passage, in which the air intake passage communicating with the duct side inlet and the air conditioner-side inlet, was formed.

[0005]

FIG. 1 is a simplified diagram showing one embodiment of a sound deadening chamber according to the present invention.
It is interposed between the air conditioner 1 and the duct 2 indicated by a virtual line.

Reference numeral 3 denotes a chamber body. The chamber body 3 has a hexahedral hollow box shape, and has a suction port 4 and a discharge port 5 on the duct side and a suction port 6 on the air conditioner side on two adjacent surfaces.
And an outlet 7.

The interior of the chamber main body 3 includes a partition member 8
Therefore, it is divided into an air blowing passage A and an air suction passage B. The air outlet passage A is formed so as to be entirely L-shaped along two adjacent inner surfaces of the chamber body 3, and is connected to the duct-side outlet 5 and the air conditioner-side outlet 7.

Further, the air blowing passage A is straight through or bent up and down and left and right (bends in two or three dimensions), and a plurality of projecting members 9 are appropriately provided in the middle thereof, and the passage including the projecting members 9. A sound absorbing material or the like is mounted on the inner surface of A. As a result, the blowing sound from the air conditioner 1 is attenuated and silenced in the passage A.

The air suction passage B is formed along the corner of the L-shaped air outlet passage A, and the duct side suction port 4 is formed.
And the air conditioner side suction port 6. A sound absorbing material or the like is also attached to the inner surface of the passage B, and the suction sound is attenuated in the passage B.
Muted.

The positions and structures of the projecting members 9 shown in the figure can be freely changed. In addition, unless the lengths of the passages A and B are largely changed, the positions of the suction port 4, the outlet 5, the suction port 6, and the outlet 7 are changed (for example, the suction port 4 and the Change to the left end of the face).

[0011]

According to the sound deadening chamber of the present invention, the air blowing passage A can be made longer and the air suction passage B can be made shorter in accordance with the sound deadening levels of the blowing sound and the sucking sound, so that no useless space is produced. Therefore, when the chamber of the present invention is made the same size as the conventional one, the silencing ability is improved, and when the chamber of the present invention is made the same as the conventional one, the chamber becomes compact, small and high-performance silencing chamber. Can be obtained.

[Brief description of the drawings]

FIG. 1 is a simplified diagram showing one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air conditioner 2 Duct 3 Chamber main body 4 Inlet 5 Inlet 6 Inlet 7 Outlet A Air outlet passage B Air inlet passage

Claims (1)

(57) [Claims] 1. A sound deadening chamber interposed between an air conditioner 1 and a duct 2, wherein a suction port 4 and an air outlet 5 on the duct side are provided.
Sky and the chamber body 3 of box-shaped having an inlet 6 and outlet 7 of the air conditioner side, with the interior of the chamber body 3
Air bisected into outlet passage A and the air suction passage B, and the air outlet passage A communicating with the duct side outlet 5 and the air conditioner-side air outlet 7, along the two adjacent inner surface of the chamber body 3 Formed in L-shape and bent directly or vertically and horizontally
A plurality of protruding members 9 are appropriately provided in the middle thereof , and the duct side suction port 4 is provided along the corner of the L-shaped air blowing passage A.
The air inlet passage B of the communicating with the air conditioner side intake port 6
A muffling chamber characterized in that: