JPH0611827U - Clean unit - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a clean unit that has a simpler structure than conventional ones, is highly airtight, requires no labor for assembly, and is highly reliable. [Structure] A high-performance air filter is housed in the recess of a box-shaped frame made of synthetic resin, and a sealant is used to hermetically seal between the four circumferences of the high-performance air filter and the side wall of the box-shaped frame. A fan is attached to the plate-shaped portion on the side opposite to the concave portion accommodating the high-performance air filter, and its air outlet is connected to the air outlet provided in the base plate-shaped portion, and a box-shaped casing provided with an air inlet. The box-shaped frame was covered with the blower mounting side.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a clean unit for performing small-scale air cleaning using a high performance air filter (so-called HEPA filter).

[0002]

[Prior art]

 The cleaning unit 53, in which the high-performance air filter 51 and the blower 52 for compressed air blower are integrated, has a hole in a wall or ceiling that separates a space into which clean air is to be supplied from a normal dusty space. It is suitable for use as a device for small-scale air purification because it can be used by simply installing it with the intake side set to the dust space side.

Conventionally, in this clean unit 53, a filter unit 55 in which a high performance air filter 51 is attached to a frame 54 made of a zinc iron plate is fixed to a lower (air outlet side) case 56, and then, The blower 52 mounted on the blower mount 57 is fixed, and a space (not shown) is provided between the mount 57 and the frame 54 of the filter unit 55 to form an airtight structure, and the high-performance air filter unit 55, the blower 52, etc. are sucked. The structure is such that the upper case 58 with a mouth is entirely covered. The lower case 56 has a blowing slit 59 at the air outlet, and the upper case inlet has a pre-filter 60 and a suction slit 61.

[0004]

[Problems to be solved by the device]

 The conventional clean unit as described above has a problem in that it has a large number of parts and requires time and effort for assembly. In view of the above points, the present invention is to provide a clean unit which has a simpler structure than conventional ones, is highly airtight, requires no labor for assembly, and is highly reliable.

[0005]

[Means for Solving the Problems] A high-performance air filter is housed in a recess of a synthetic resin box-shaped frame, and a sealant is used to hermetically seal between the four circumferences of the high-performance air filter and the side wall of the box-shaped frame. Then, attach a blower to the base plate of the box-shaped frame on the opposite side of the recess containing the high-performance air filter, and connect the air outlet to the blower provided on the base plate to A box-shaped casing with an inlet was used to cover the side of the box-shaped frame where the fan was attached.

[0006]

[Action]

 In the clean unit of the present invention, the box-shaped frame serves as a support frame for the high-performance air filter and also as a blower mount. That is, the high-performance air filter is fixed to the box-shaped frame directly by using caulking material or the like, which is fixed on the four sides with the same filter material. And since the box-shaped frame is made of synthetic resin, it is highly airtight, and it also serves as a fan stand or hepa filter frame, reducing the number of parts, and a simple metal fitting to prevent the blower from moving. Simply using, the base plate-shaped part of the box-shaped frame can be used as a support surface.

The usage is the same as the conventional clean unit, and a hole is made in the wall or ceiling that separates the space to which clean air is to be supplied from the ordinary dusty space so that the intake side is the dusty space side. Install. When the blower is operated, the dusty air sucked in from the intake port enters the high-performance air filter accommodating section from the air blowout port of the blower via the blower port of the box-shaped frame, is filtered by the air filter, and becomes clean air. Become.

[0008]

【Example】

 Hereinafter, an example of implementation of the Cree unit of the present invention will be described with reference to FIG.

The box-shaped frame 1 is made of a synthetic resin having a shape in which the bottom is turned upside down. A base plate-shaped portion 2 corresponding to the box bottom has a blower opening 3 and side wall portions thereof. 4 has a double wall structure in which it is inverted in a U shape to the outside, and a tip edge portion 6 of the inverted portion 5 is a fitting portion with a casing 7 that fits into the box-shaped frame 1.

A known high-performance air filter 8 is housed inside the box-shaped frame 1. The high-performance air filter 8 has four circumferences fixed by the same filter material 9, and is separated from the base plate-shaped portion 2 of the box-shaped frame 1 to form an air flow passage 10 to form a stepped portion of the base-plate-shaped portion. A cover / blowing slit 14 is fixed to the side wall portion 4 of the box-shaped frame 1 by a caulking material 12 in a state of being in contact with 11, and covers the high-performance air filter 8 and has a large ventilation gap 13.

The casing 7 that fits into the box-shaped frame 1 is a synthetic resin-made, generally box-shaped product having a shape similar to that of the box-shaped frame 1 with the bottom inverted, and corresponds to the box bottom. Frame-like steps 15 and 16 are formed on the peripheral edge of the part, and an intake opening 17 is provided inside the step 16. The casing 7 is fitted to the tip edge portion 6 of the box-shaped frame 1 at the tip edge portion 19 of the side wall portion 18, and the four columns 20 and 21 provided in the box-shaped frame 1 and the casing 7 are butted against each other. The box-shaped frame 1 and the casing 7 are fixed with the screws 22. A prefilter 23 and a cover / suction slit 24 having a large ventilation gap are attached to the step portions 15 and 16 of the casing 7 so as to cover the air inflow opening 17.

A blower 25 is provided inside the casing 7. The blower 25 (sirocco fan) has its bottom fixed to the base plate-shaped portion 2 of the box-shaped frame 1 with its fixing member 26 fixed in position. The air outlet 27 of the blower 25 is opened downward, and the attachment of the blower 25 is selected such that the air outlet 27 is located at the position of the air outlet 3 of the box-shaped frame 1.

Reference numeral 28 is an operation switch which can be switched between stop / high speed / low speed operation. Reference numeral 29 is an indicator light for high-speed operation, low-speed operation, and abnormality.

The entire clean unit is fixed by an arbitrary fixing means by providing an opening on the ceiling, wall or the like of a room requiring clean air.

When the blower 25 is operated, the space between the air suction port 30 of the blower 25 and the prefilter 23 becomes negative pressure, and the air flows in through the suction slit 24 and the prefilter 23, The air discharged from the air outlet 27 enters the high-performance air filter 8 via the air outlet 3 air passage 10, and the air filtered and cleaned by the air filter 8 is discharged from the ventilation gap 13 of the air outlet slit 14. Be exhaled.

When the high performance air filter 8 becomes dirty after being used for a long time, the filter 8 is replaced together with the box-shaped frame 1.

[0017]

[Effect of device]

 A high-performance air filter is housed in the recess of a box-shaped frame made of synthetic resin, and the four edges of the high-performance air filter and the side wall of the box-shaped frame are hermetically sealed with a sealing material to form a base plate of the box-shaped frame. Install a blower on the opposite side of the recess containing the high-performance air filter, and connect the air outlet to the air outlet provided on the base plate-like portion, and a box-shaped casing with an air inlet. The clean unit of the present invention, which covers the side of the box-shaped frame on which the blower is mounted, is a conventional unit of this type because the box-shaped frame serves as a support frame for a high-performance air filter and also as a blower mount. Compared to this, the number of parts is small, the airtightness is high, the assembly is easy, and the maintenance is easy.

[Brief description of drawings]

FIG. 1A is a vertical sectional view of an embodiment of the present invention. FIG. 3B is a perspective view showing the main part of the above embodiment in a separated manner.

FIG. 2 is a perspective view showing a conventional device separately.

[Explanation of symbols]

 1 Box-shaped frame 2 Plate-shaped part 3 Blower port 4 Side wall part 7 Casing 8 High-performance air filter 12 Caulking material 23 Pre-filter 25 Blower

Claims (1)

[Scope of utility model registration request] 1. A box-shaped frame, wherein a high-performance air filter is housed in a recess of a box-shaped frame made of synthetic resin, and a sealing material is hermetically sealed between four sides of the high-performance air filter and a side wall of the box-shaped frame. A fan is attached to the base plate-shaped part of the base plate on the side opposite to the concave part accommodating the high-performance air filter, and its air outlet is connected to the air blower provided on the base plate-shaped part, and a box shape having an air intake port A clean unit characterized by covering the side of the box-shaped frame on which the blower is attached with the casing.