JPH0542480Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a soundproof box for reducing the noise of heat-generating equipment, and is configured to facilitate maintenance.

Prior Art A conventionally known soundproof box is a double-walled box with a hollow portion inside, excluding at least the wall portion that should be opened when performing maintenance of the equipment housed in the soundproof box. The soundproof box has a gas suction path that passes through a cavity inside the double-walled wall and sucks gas from the outside of the soundproof box into the internal space that accommodates equipment therein, and the internal space of the soundproof box. A gas discharge path for discharging gas to the outside of the soundproof box is provided, and a blower fan is provided to forcefully circulate the gas inside and outside the soundproof box through the gas intake path and the gas discharge path, and the inside of the wall with the above-mentioned double structure is provided. A soundproof box has been devised and known (Utility Model Application No. 63-22000), which is characterized by having a sound-absorbing material coated along the inner surface of the cavity.

This type of soundproof box has a double structure inside and outside, so it has a noise prevention effect.

Problems to be Solved by the Invention However, such conventional soundproof boxes have the following disadvantages.

(a) Due to the dual structure of the inside and outside, the box could not be disassembled, making maintenance of the internal equipment inconvenient.

(b) Since the box has a double structure inside and outside, and the airflow is limited to one direction, the airflow inside the box is uneven, resulting in poor cooling efficiency.

(c) There is also the disadvantage that heat-generating equipment is likely to malfunction due to insufficient cooling.

SUMMARY OF THE INVENTION In view of the drawbacks of the prior art, it is an object of the present invention to provide a box that can sufficiently cool equipment without reducing the soundproofing effect and that can be easily disassembled.

Means for Solving the Problems In other words, the present invention consists of a bottom plate provided with an air vent in the center, a box-shaped cover body removably joined to the bottom plate, and an upper part attached below the bottom plate. A rectangular box-shaped intake box with an open box,
It consists of a fan motor attached to the air port of the bottom plate and a mounting table attached to the bottom plate through a vibration isolating material so as to cover the fan motor, and the inside of the intake box is divided into a central chamber and side chambers on both sides thereof. It is divided by a partition plate having an opening for partitioning and communicating between adjacent rooms, an intake hole is made in the wall of the side room, a sound absorbing material is applied to the wall that forms the intake box, and the cover body is attached to the ceiling. The cover body is formed of a double structure with air passages on both side parts, and a communication port and an air outlet are provided in the lower inner wall and the central inner wall of both side parts, respectively, and the central inner wall of the ceiling part of the cover body and the upper outer wall of both side parts. an exhaust inlet and an exhaust port are respectively opened in each side, the exhaust port and the air outlet on both side surfaces of the cover body are separated by a partition plate, and a sound absorbing material is coated on the inner wall surface of the double-structured passageway of the cover body. This purpose is achieved by using a soundproof box that is characterized by:

Function In the soundproof box according to the present invention, outside air is sucked in from the air intake holes provided in the side chambers of the air intake box mounted below the bottom plate by the suction action caused by the rotation of the motor fan. The sucked air enters the soundproof box from the intake port on the bottom plate, and is further divided into two directions there, and then guided into the cover body through the air passage formed by the mounting table that covers the motor fan and the bottom plate. The air is blown out from an outlet provided inside the center of the side surface of the cover body toward a heating element such as a vacuum pump. There, it exchanges heat with the heating element and is warmed, and the warm air rises toward the ceiling.

The rising air is guided to the air passage inside the double-walled cover body through an exhaust inlet provided inside the center of the ceiling, and is discharged from the exhaust port above the side surface through the air passage in the cover body.

In addition, noise generated inside the soundproof box propagates through the air, but since the inner walls of each cover, the bottom plate, and the walls inside the intake box are covered with sound-absorbing material, the sound is absorbed there, and is further attenuated as it bends several times before propagating to each exhaust or intake port.

In the case of a type in which an exhaust port is provided in the cover body near the exhaust port of the vacuum pump, the hot air discharged from the vacuum pump is directly discharged to the outside through the exhaust port.

Embodiment Hereinafter, the present invention will be explained in detail according to an embodiment shown in the drawings.

In the figure, reference numeral 1 denotes a soundproof box body, which comprises a bottom plate 2, a box-shaped cover body 4 removably attached to the bottom plate 2, and an air intake box 6 attached below the bottom plate 2.

The intake box 6 has a cross section L joined to the bottom plate 2.
It consists of a combination of a leg 8 made of a letter-shaped plate and a cover 10 that covers the leg 8.
A partition plate 14 is provided on the inner wall of the box 6 to divide the inside of the box 6 into a side chamber 12a, a central chamber 13, and a side chamber 12b, and to communicate the adjacent chambers with each other through an opening in the center.
a, 14b are joined, and the partition plates 14a, 14b
Air intake holes 16 are made in the walls of the side chambers 12a and 12b, which are separated by a box 6, and a sound absorbing material 18 is adhered to each wall of the box 6, as shown in FIGS. 1 and 2. .

An air intake port 20 is formed in the center of the bottom plate 2, and a fan motor 22 is attached to the air intake port 20.

A mounting base 24 is connected to the bottom plate 2 inside the soundproof box 1 via vibration-isolating material 23, for example made of vibration-isolating rubber, and the fan motor 22 is covered via the mounting base 24 and a finger guard 26 connected to the mounting base 24, and the air passages 28 covered by these are each open toward the side portions of the box body 1.

30 is a motor connected to the mounting table 24;
32 is a vacuum pump connected to the drive shaft of the motor 30, and 33 and 34 are filter elements connected to the intake and exhaust ports of the vacuum pump 32.

As shown in FIGS. 1 and 3, the cover body 4 is made of a single plate at the front and rear parts, and a double plate made of two plates separated by a predetermined distance from each other at both side surfaces and the ceiling. It has a structure.

Communication ports 36a, 36b communicating with the air passage 28 are provided at the lower inside of the side surface of the cover body 4, and cooling air outlets 38a, 38b are provided at the center of the inside of the side surface.

An exhaust inlet 40 for discharging the air inside the box is provided at the center of the inside of the ceiling, and an exhaust port 42 communicating with the inlet 40 is provided at the upper outside of one side surface. The discharge port 42 and the air outlet 38a are separated by a partition plate 44.

Further, a dedicated exhaust port 46 is provided inside the side surface of the cover near the exhaust port of the vacuum pump 32 connected to the mounting table 24 to guide hot air emitted from the exhaust port to the outside. It communicates with an exhaust port 48 provided on the outer upper side of the body.

The exhaust port 46 and the air outlet 38b are separated by a partition plate 50, and the exhaust port 48 and the exhaust inlet 40 are partitioned by a partition plate 52.

Further, in this embodiment, a sound absorbing material 18 is attached to the inner wall surface of the double structure portion of the cover body and the wall surfaces of the plate materials at the front and back portions.

Note that 54 and 56 are pipes for suction and exhaust of the vacuum pump 32.

In the configuration described above, in the soundproof box according to the present invention, the side chambers 12a, 1 of the intake box 6 are
Outside air is led into the box through the intake hole 16 provided in the bottom plate 2b, and from the box the air is introduced into the intake port 2 provided in the bottom plate 2.
0 into the cover body 4. The air that has entered the cover body 4 is first divided into air passages 2 formed by the mounting table 24 and the finger guards 26.
8 toward the side surface, and the cover body 4
into the side air passage of the air outlet 38.
It is sprayed from a and 38b to the heat generating equipment.

Air heated by exchanging heat with the heat-generating device rises, is guided to the ceiling air passage through an exhaust inlet 40 provided in the ceiling, and is discharged through an exhaust port 42.

Furthermore, in this embodiment, the hot air discharged from the exhaust port of the vacuum pump 32 is guided into the cover body 4 through a dedicated exhaust port 46 provided near the outside air port, and is separately discharged from an exhaust port 48. Therefore, the air inside the cover body 4 will not rise abnormally.

In the state in which the heat generating equipment is cooled in this way, in the device of the embodiment according to the present invention, the ceiling and both side surfaces of the cover body 4, which serve as air flow paths, the intake box 6, etc. are all constructed with a double structure. Since the sound from the heat generating equipment does not propagate directly to the outside, it is attenuated by the sound absorbing material attached to each wall surface, and the sound propagation path is bent. A considerable amount of information will be dispersed before it is transmitted from the device to the outside.

In this embodiment, the bottom plate 2 is directly covered with the mounting table 24 via the vibration isolating material, but the present invention is not limited to this. If a better soundproofing effect is desired, the bottom plate 2 can be covered with the inner wall surface. It may be configured such that the mounting table 24 is covered with a cover body covered with a sound absorbing material, and the mounting table 24 is further bonded to the top of the cover body via a vibration isolating material.

The shape of the intake box is not limited to the embodiment shown in FIG. 2, but may be of any structure as long as it bends air and sound as shown in FIG. 4.

Effects As described above, the soundproof box according to the present invention is constructed so that the equipment is covered with a single cover body having a double structure in the ceiling and both sides.
Since it is easy to remove, maintenance is easy compared to conventional ones.

Furthermore, since the cooling air is divided into two directions evenly and then blown onto the equipment that generates heat, the equipment can be cooled uniformly.

Furthermore, since the cover body in the portion corresponding to the sound propagation path has a double structure and the intake box is partitioned via a partition plate, it is possible to increase the muffling rate of noise generated from the equipment.

[Brief explanation of the drawing]

Fig. 1 is a front cross-sectional view showing an embodiment of the device according to the present invention, Fig. 2 is a - cross-sectional view of Fig. 1, Fig. 3 is a - cross-sectional view of Fig. 1, and Fig. 4 is a cross-sectional view of the intake box. FIG. 7 is a sectional view showing another embodiment. 1...Soundproof box body, 2...Bottom plate, 4...
Cover body, 6... Intake box, 8... Leg, 10
...Cover, 12a, 12b...Concubine, 13...
Central chamber, 14a, 14b... Partition plate, 16...
Hole, 18...Sound absorbing material, 20...Intake port, 22...
Fan motor, 23... Vibration isolation material, 24... Mounting table, 26... Finger guard, 28... Air passage, 30... Motor, 32... Vacuum pump, 3
3, 34... Filter element, 36a, 3
6b...Communication port, 38a, 38b...Air outlet, 40...Exhaust inlet, 42...Exhaust port, 44...
...Partition plate, 46...Exhaust port, 48...Exhaust port,
50...Partition board.

Claims (1)

[Claims for Utility Model Registration] (1) A bottom plate with an air vent in the center, a box-shaped cover body removably joined to the bottom plate, and an open upper part attached to the bottom of the bottom plate. The intake box consists of a rectangular parallelepiped box-shaped intake box, a fan motor attached to an air port on a bottom plate, and a mounting table attached to the bottom plate via a vibration isolating material so as to cover the fan motor. The interior is divided into a central chamber and side chambers on both sides, and is partitioned by a partition plate with an opening for communication between the adjacent chambers.Intake holes are made in the wall of the side chamber, and sound-absorbing material is installed in the wall that forms the intake box. is adhered to the cover body, and the cover body is formed of a double structure having air passages in the ceiling part and both side parts, and a communication port and an air outlet are provided in the lower inner wall and the central inner wall of both side parts, respectively, and the cover body Exhaust inlets and exhaust ports are provided in the central inner wall of the ceiling and the upper outer walls of both sides, respectively.
A soundproof box characterized in that an exhaust port and an air outlet on both side surfaces of the cover body are separated by a partition plate, and a sound absorbing material is coated on the inner wall surface of the passageway of the double structure of the cover body. (2) The soundproof box according to claim 1, wherein a sound-absorbing material is applied to the inner wall surface of the cover body other than the ceiling and side surfaces.