JPH0236018Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a filter unit for clean rooms that is widely used mainly in laboratories, hospitals, etc.

That is, the present invention provides a filter unit in which an air intake port 2 is provided at the top and an air outlet 3 is provided below, and a filter 4 is installed near the inside of the air outlet 3. cum rectifier plate 7
A plurality of small air blowers 5, 5 are arranged in parallel in the recessed part of the sound insulation/straightening plate 7 in a back-to-back manner, forming approximately oblong U-shaped air passages 6, 6 on both sides of the inside of the machine. Its main purpose is to make the air blowing noise extremely low, lower the ceiling surface, and make the overall shape more compact.

The detailed structure of the present invention will be explained below with reference to drawings illustrating the specific structure of the present invention. 1 is a low-bulk machine box formed into a substantially flat shape, with an air suction port 2 at the top and a filter 4 at the bottom inside. The installed air outlets 3 are each provided with an opening.

Further, inside the machine box 1, below the air suction port 2, a plurality of small blowers 5, 5 are arranged in parallel in a back-to-back configuration,
The ventilation ports 5', 5' are opened in mutual directions to form ventilation passages 6, 6 in front of the ventilation ports 5', 5'.

A V-shaped sound insulating/straightening plate 7 is installed in the air passages 6, 6, with the V-shaped lower end portion 7' located between the blowers 5, 5 on both sides and approximately at the center of the air outlet 3. The ventilation passages 6, 6 on both sides are
is formed into a generally oblong U-shaped ventilation passage.

The present invention is constructed as described above, and air is introduced into the fuselage body from the upper suction port 2 by the operation of the blowers 5, 5, and the U-shaped ventilation passage 6,
The fresh air that has completely passed through the air outlet 3 through the filter 4 can be blown into the room almost silently.

As described above, the filter unit according to the present invention has a plurality of small blowers 5, 5 installed back to back in the machine box 1, and a V-shaped sound insulation/straightening plate 7 inside the machine.
By arranging these, substantially oblong U-shaped ventilation passages 6, 6 are formed in front of both side blowers 5, 5.

Therefore, the air from the blowers 5, 5 is naturally rectified by one inclined surface of the sound insulation/straightening plate 7, and is guided in a large roundabout way through the air passages 6, 6 to produce a gentle air flow from the lower air outlet 3. It can be supplied indoors.

Moreover, since the present invention has a plurality of blowers 5, 5 installed opposite each other in the machine as described above, it is possible to operate the blower on one side or independently in the event of failure of the blower on one side. Not only can the desired air flow be easily adjusted and changed through the air blower, but since the blowers 5, 5 are disposed within the recess of the V-shaped sound insulating/straightening plate 7, the height of the aircraft is significantly increased. Low configuration obtained and
In addition, the V-shaped lower tip portion 7' of the sound insulation/straightening plate 7 protrudes downward, which completely divides the air passages 6, 6 on both sides of the blowers 5, 5, and is not used in a conventional multiple blower. It is an energy-saving filter unit that has various effects such as being lightweight, having an extremely compact overall shape, and low noise, since the middle partition wall plate is completely unnecessary.

The present invention can also be used as a filter unit for other types of air conditioners other than for clean rooms.

[Brief explanation of the drawing]

The drawings show one embodiment of the filter unit according to the present invention, and FIG. 1 is a plan view, and FIG. 2 is a longitudinal sectional front view. Explanation of symbols, 2...Air inlet, 3...Same air outlet, 5...Small blower, 6...Blower passage, 7...
...Sound insulation and rectifying board.

Claims (1)

[Scope of utility model registration request] In the filter unit, which has an air intake port 2 at the top and an air outlet 3 at the bottom, and a filter 4 installed near the inside of the air outlet 3, a V-shaped sound insulation/straightening plate 7 is installed inside the fuselage. A plurality of small air blowers 5, 5 are arranged in parallel in the recessed part of the sound insulating/straightening plate 7 in a back-to-back manner, forming approximately oblong U-shaped air passages 6, 6 on both sides of the inside of the machine. A clean room filter unit characterized by: