JPH073215Y2 - air conditioner - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an air conditioner, and more particularly to an air conditioner in which a muffling chamber is provided on the air discharge side.

[Prior art]

An air conditioner provided with a muffling chamber on the discharge side of the air flow includes, for example, an air conditioner such as a terminal air handling unit (hereinafter referred to as “terminal AHU”). In this type of air conditioner, airflow is rectified by a muffling unit arranged in a muffling chamber, and the muffling unit is fixed to the air conditioning unit body by welding, for example.

[Problems to be solved by the device]

Conventionally, since the muffling unit is fixed to the air conditioner main body by welding, the direction of the air flow ejected from the discharge port cannot be changed later. Therefore, if the duct is attached to change the direction of the air flow, pressure loss occurs due to the attachment of the duct.

Moreover, the productivity of the air conditioner is not good in the structure in which the noise reduction unit is attached by welding.

Therefore, the main purpose of this device is to change the direction of the air flow later without installing ducts, etc.
Moreover, it is to provide an air conditioner with good productivity.

[Means for Solving the Problem] Briefly, the present invention is characterized in that in an air conditioner in which a muffling chamber is provided on the discharge side of an air flow, a muffling unit is detachably arranged in the muffling chamber. , Air conditioner.

[Effect of device]

According to this invention, since the muffling unit arranged in the muffling chamber is removable, after the air conditioner is installed, the direction of the air flow ejected from the discharge port can be arbitrarily changed according to the usage situation. That is, when the muffling unit is detached from the muffling chamber and mounted in a different mounting direction, the direction in which the air flow blows out changes.

Further, in the manufacturing process, the muffling unit is not welded to the air conditioner main body but is simply incorporated later, so that the productivity can be improved.

Furthermore, since the muffling unit is removable, it can be removed or replaced during maintenance, improving maintainability.

The above-mentioned objects, other objects, features and advantages of the present invention will become more apparent from the detailed description of the embodiments below with reference to the drawings.

〔Example〕

FIG. 1 is a perspective view showing an embodiment of the present invention. The air conditioner 10 of the terminal AHU includes a housing 12, and a U-shaped flow passage is formed in the housing 12 by a partition wall 14. A suction unit 16 is provided on the right side of the housing 12, and a discharge unit 18 is provided on the left side thereof.

Below the suction part 16, the heat exchanger 20 is arranged in an inclined manner. Further below the heat exchanger 20, a humidification space 22 communicating with the discharge side flow passage is formed. In this humidifying space 22,
The airflow that has been heat-exchanged by the heat exchanger 20 is humidified. Therefore, although not shown, in the humidification space 22, a spray nozzle or the like for injecting a water spray for humidification is arranged at a predetermined position.

The left side of the humidifying space 22 is partitioned by an eliminator 24 that extends from the lower portion of the partition wall 14 to the lower left corner of the housing 12. The eliminator 24 removes water droplets that are not saturated with the airflow in the humidification space 22.

A fan section 26 is provided above the eliminator 24. Although not shown, the fan section 26 is provided with a fan for sucking the air flow from the suction portion 16, a motor for driving the fan, and the like.

A muffling chamber 28 is provided above the fan section 26. In the muffling room 26, a muffling box 30 that is removable from above is arranged. The muffling box 30 also functions as a flow rectifier, and is formed in a rectangular parallelepiped shape having a square cross section in a direction perpendicular to the air flow. Therefore, the airflow that has passed through the fan section 26 is subjected to noise reduction processing in the noise reduction chamber 28, is rectified, and is discharged upward.

A cover plate 32 is arranged on the sound absorbing box 30 attached to the housing 12, that is, on the upper side of the suction section 16 and the discharge section 18. A suction port 34 and a discharge port 36 are formed in the cover plate 32 at portions corresponding to the suction unit 16 and the discharge unit 18, respectively.

As shown in detail in FIG. 2, the muffling box 30 has two sides 40 and 42 and two splitters 44 and 46 attached to a frame body 38 formed by bending an expanded metal and having two completely open sides. Formed. These sides 40, 42 and splitters 44, 46 are formed as follows.

The side 40 is formed through the process shown in FIG. First, as shown in FIG. 3 (A), the expanded metal 48 cut into a predetermined size is bent into a "M" shape in cross section. Here, the expanded metal is a wire mesh metal plate member in which slits are formed in a zigzag shape on a relatively thin metal plate and the slits are opened by pulling the slits in the plane direction.
Then, on the back side of the "valley" portion of the "M", a total of four spacers 50, two at each end, are fixed by welding, for example.
The spacer 50 is formed by bending a rectangular metal plate to have a U-shaped cross section and having a predetermined thickness. As will be described later, the spacer 50 is made of glass wool 56 having a predetermined thickness.
(FIG. 3 (D)) is a member for fitting and holding it.

Since the width of the spacer 50 is more than twice the width of the mesh of the expanded metal 48, at least one cross point of the expanded metal 48 is one spacer 50.
Placed on top. Therefore, its expanded metal
The cross points of 48 and the spacer 50 are welded.

Next, as shown in FIG. 3 (B), expanded metal
The tack 52 is fixed to the part sandwiched by the spacer 50 of 48. The tack 52 is also fixed by welding the head portion and the cross point of the mesh of the expanded metal 48. This tack
Reference numeral 52 is for fixing the glass wool fitted in the spacer 50 so as not to move. That is, the spacer
When fitting glass wool 56 into 50, stud 52 is glass wool
It is stuck in 56.

Next, as shown in FIG. 3 (C), expanded metal
A glass cloth 54 of a predetermined mesh size is attached to the surface of the 48 tack 52 attached. This glass cloth 54 is
A net that prevents the fibers of glass wool 56 from flying through the mesh of expanded metal 48. However, because it is made of almost the same material as glass wool, it also has a sound deadening effect that absorbs sound.

After the glass cloth 54 is attached, the glass wool 56 is fitted into the spacer 50 as shown in FIG. That is, the glass wool 56, which is slightly thicker than the thickness formed on the spacer 50, is arranged on the glass cloth 54 so as to pierce the tack 52. Then, the two ends of the glass wool 56 are fitted into the spacers 50 at two locations. Then, washers 58 are fitted into the tacks 52 protruding above the glass wool 56, respectively. Then, the protruding portion of the tack 52 is bent laterally as shown in the figure to complete the side 40.

The side 42 is formed through the same process as the side 40. First, as shown in FIG. 4 (A), the expanded metal 48 cut into a predetermined size is bent into a substantially V-shaped cross section. Then, like the side 40, the four spacers 50 are fixed to the expanded metal 48. Thereafter, as shown in FIG. 4 (B), six tacks 52 are welded to the expanded metal 48. Then, the glass cloth 54 is attached as shown in FIG. 4 (C), and the glass wool 56 is attached as shown in FIG. 4 (D). Although it is not clear in FIG. 4 (D), as in FIG. 3 (D), the tack 52 is bent and the glass wool 56 is fixed to the side.
42 is completed.

Both splitters 44 and 46 are formed as shown in FIG. First, as shown in FIG. 5 (A), guides 58 having a "U" cross section are attached to both ends in the longitudinal direction of the expanded metal 48a bent in a substantially "C" cross section. This guide 58 is also welded at the cross points of the mesh of the expanded metal 48a. Next, as shown in FIG. 5 (B), the spacer 50 is attached. This spacer 50 is also welded to the expanded metal 48a, like the sides 40 and 42. The thickness formed on the spacer 50 and the guide 58 is set to be slightly smaller than the thickness of the glass wool 56 because the glass wool 56 (FIG. 5D) is pressed and fitted.

After the spacer 50 is attached, the glass cloth 54a is attached to the expanded metal 48a as shown in FIG. 5 (C). Then, the glass wool 56 shown in FIG. 5D is placed on the glass cloth 54a. Then, further on the glass wool 56, FIG. 5 (D)
Another glass cloth 54b is arranged as shown in FIG. Therefore, in the state of FIG.
Have glass cloths 54a and 5a on the top and bottom, respectively.
It will be covered with 4b.

After covering the upper surface of glass wool 56 with glass cloth 54b,
As shown in FIG. 5 (E), the expanded metal 48b is fixed on the glass cloth 54b. That is, the expanded metal 48b bent in a V-shape in cross section is first fitted into the guide 58 at the right end, for example. The left end is welded to the left guide 58 at the cross point of the expanded metal 48b. At this time, the cross points of the expanded metal 48b located on the spacer 50 are also welded. Then, both sides of the glass wool 56 in a state of being wrapped with the glass cloths 54a and 54b are expanded metal 48a.
And 48b to complete splitters 44 and 46.

In such an air conditioner 10, the opening surfaces are arranged vertically,
When the silencer box 30 is installed with the “U” shaped splitters 44 and 46 facing the front of the housing 12, the outlet 36
The direction of the air flow exiting from the housing is obliquely forward of the housing 12.

On the contrary, when the muffler box 30 is attached in a direction in which the “U” -shaped splitters 44 and 46 face the back side of the housing 12, the direction of the air flow emitted from the discharge port 36 is obliquely rearward of the housing 12.

Similarly, when it is desired to set the direction of the air flow discharged from the discharge port 36 to the left or the right, the direction in which the muffling box 30 is fitted is determined accordingly.

Therefore, as described above, the sound deadening box 30 is formed in a rectangular parallelepiped shape having a square cross section in the direction perpendicular to the air flow so that the sound deadening box 30 can be fitted in any of four directions.

Further, in this air conditioner 10, if another silencing box to which a splitter having an angle different from that of the silencing box 30 described above is attached is attached, the angle of the jetted airflow can be changed.

The shape of the splitter elbow and its manufacturing method can be arbitrarily changed. For example, the expanded metal wrapping the glass wool may be replaced with punching metal. In addition, the number of elbows could be changed accordingly.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention. FIG. 2 is a perspective view of the sound deadening box used in the embodiment of FIG. 3 and 4 are views showing the manufacturing process of the side in the sound deadening box shown in FIG. FIG. 5 is a diagram showing a manufacturing process of the splitter in the silencing box shown in FIG. In the figure, 12 is a housing, 14 is a partition wall, 16 is a suction part, 18 is a discharge part, 28 is a muffling chamber, 30 is a muffling box, 32 is a cover plate, 34 is a suction port, 36 is a discharge port, 40 and 42. Is side, 44 and 46
Indicates a splitter.

Claims (2)

[Scope of utility model registration request] 1. An air conditioner in which a muffling chamber is provided on a discharge side of an air flow, comprising a muffling unit detachably arranged in the muffling chamber. 2. The air conditioner according to claim 1, wherein the muffling unit includes a plurality of splitter elbows.