JPH10216557A - Filter frame body structure of air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air cleaner wherein not only a percolating filter but also a high tension electrode wire and an earth electrode are fitted to an attaching and detaching frame body of a filter mechanism provided in the air cleanser. SOLUTION: A filter mechanism having a percolating filter is provided to a frame body 1 to which an air suction opening and an air blowing out opening are provided, and an attaching and detaching frame body 9 constituting a filter mechanism is arranged to a suction side of an air blowing out fan. Further, a plurality of pieces of earth electrodes 7 of U-shaped cross section are constituted with a folded part 7a formed by cut-press working of a sheet of a metal sheet 6. An electrode board 10 wherein a high tension electrode wire 8 longer than the electrode plate 6 is disposed in tension between the earth electrodes 7 is provided. The metal sheet 6 is fitted to a base board 11 of the attaching and detaching frame body 9 composed of a synthetic resin having insulation characteristics, and the electrode board 10 is fitted to a pillar body 13 raised from the base board 11. An earth connection sheet 12 and a high tension connection sheet 14 which come in contact with a feed terminal 15 of the frame body 1 are provided to a side sheet of the attaching and detaching frame body 9, and the earth connection sheet 12 is conducted to an earth electrode 7 Further, the high tension connection sheet 14 passes through the pillar body 13 from a rear face of the base board 11 on which the pillar body 13 is positioned to be conducted to the electrode board 10, and abnormal discharge owing to dust stuck to the base board 11 is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frame for mounting and dismounting a filter mechanism in an air purifier provided with a high-voltage electrode wire and a ground electrode.

[0002]

2. Description of the Related Art An air purifier is provided with a filter and an air blower fan in a frame body, the room air is sucked by the air blower fan, and the air which has been cleaned by the filter is returned to the room. It is. When the filter of such an air purifier becomes clogged, there is an air purifier in which a part of the structure including the filter is detachable to facilitate replacement and cleaning of the filter.

[0003] As a filter mechanism of an air purifier, there is a filter mechanism using a filter filter alone, or a filter mechanism provided with a high-voltage electrode wire and a ground electrode and having a boosting mechanism for generating a high-voltage power supply between the two electrodes. A power supply terminal is provided on the side of the frame, which is electrically connected to the power supply of the filter mechanism. On the other hand, the detachable frame includes not only a filter but also a ground electrode and a high-voltage electrode wire. And a connection plate for supplying current to the frame, and the connection plate is in contact with a power supply terminal of the frame.

[0004]

The dust charged by the high-voltage electrode wire and the ground electrode provided on the detachable frame is sent to the filtering filter and collected by the action of the air blowing fan. Actually, a part of the charged dust may diffuse and adhere to the inner surface of the detachable frame. In particular, the frame body is provided with a power supply terminal that conducts to the power supply unit of the filter mechanism. On the other hand, a high-voltage connection plate that is in contact with the power supply terminal is attached to the side surface of the detachable frame body. In order to electrically connect the electrode plate for extending the electrode wires to the high-voltage connection plate, it is necessary to form a conductive portion through the side plate of the detachable frame. Dust diffused into the detachable frame adheres to the vicinity of the penetrating portion. (See Fig. 6)

[0005] Dust adhering to the surface of the detachable frame is not particularly problematic if it is dried. However, if a humid condition such as rainfall continues, the dust adsorbs moisture and the insulation resistance is rapidly reduced. When the high-voltage electrode wire and the ground electrode are continuous on the surface of the detachable frame, dust is deposited between the two electrodes, causing an electric leakage phenomenon, and the voltage between the two electrodes tends to decrease.

On the other hand, when the conducting portion between the electrode plate and the high-voltage connecting plate penetrates the side plate of the frame, all of these parts are later attached to the detachable frame, so that the penetrating portion needs to be a hole. is there. For this reason, when the creepage dimension from the periphery of the through hole of the through portion to the metal plate of the ground electrode is shorter than the creepage dimension between the electrode plate and the metal plate, dust adhering to the periphery of the through hole of the through portion is removed. Discharge occurs in the gap between the power supply and the conductive portion of the high-voltage connection plate, and abnormal discharge noise is generated.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a detachable frame structure for preventing an abnormal sound from being generated between a high-voltage electrode wire and a ground electrode by an electric discharge. 2 and an air outlet 3 are provided, and an air blower fan 4 is arranged in an air flow path from the air inlet 2 to the air outlet 3 in the frame 1. A filter mechanism 5 having a filter 5a for collecting suspended matter is provided, and a plurality of ground electrodes 7 having a U-shaped cross section are formed by a plurality of bent portions 7a formed by cutting a single metal plate 6. Opening 7b formed by cutting and stamping
The high-voltage electrode wire 8 longer than the metal plate 6 is disposed between the adjacent bent portions 7a facing the, and the attachment / detachment frame 9 of the filter mechanism 5 provided detachably with the frame 1 is made of synthetic resin having insulating properties. In the air purifier having the electrode plate 10 on which the high-voltage electrode wires 8 are stretched and the metal plate 6 of the earth electrode 7 attached to the attachment / detachment frame 9, the metal plate 6 of the earth electrode 7 is attached to the attachment / detachment frame 9. An earth connection plate 12 attached to the base plate 11 and provided on a side plate of the detachable frame 9 is electrically connected to the earth electrode 7 and is connected to the high-voltage electrode wire 8.
The electrode plate 10 is mounted on a column 13 raised from the base plate 11, and a high voltage connection plate 14 is provided on the back surface of the base plate 11 where the column 13 is located. Is connected to the electrode plate 10 through the inside of the columnar body 13 and is connected to the ground connection plate 1 of the detachable frame 9 attached to the frame 1.
2 and the high-voltage connection plate 14 are brought into contact with the power supply terminal 15 of the frame 1.

Further, an electrode plate 10 on which the high-voltage electrode wire 8 is extended
And the metal plate 6 of the earth electrode 7 is attached to the base plate 11 of the detachable frame 9.
Of the ground electrode 7
A partition 16 is erected from the base plate 11 between the base plate 11 and the columnar body 13 of the electrode plate 10, and a transmission part 16 a of the high-voltage electrode wire 8 is formed in a part of the partition 16. By attaching a lid 17 that is also connected to the side plate of the detachable frame 9 and covers a space surrounded by the partition 16 and the side plate of the detachable frame 9, dust can be prevented from entering the electrode plate 10 and the vicinity of the high-voltage electrode wires 8. Prevent,
Electric leakage due to dust is less likely to occur.

[0009]

When the dust contained in the air is charged and diffused, the base plate on which the electrode plate 10 on which the high-voltage electrode wires 8 are mounted and the metal plate 6 constituting the earth electrode 7 are compared with a place where there is an airflow. It also adheres to a portion near 11 where there is almost no airflow. In the present invention, the detachable frame 9 to which dust easily adheres.
Since the conductive portion from the electrode plate 10 provided therein to the high-voltage connection plate 14 provided on the outer surface of the detachable frame 9 was drawn through the inside of the columnar body 13 to which the electrode plate 10 was attached, the detachable frame was No gap is formed between the dust adhered to the conductive member 9 and the conductive portion, and abnormal discharge to the surface of the detachable frame 9 whose insulating performance has deteriorated due to the adhesion of the dust no longer occurs.

An electrode plate 10 on which the high-voltage electrode wire 8 is extended.
And the metal plate 6 of the earth electrode 7 are separately arranged on the front surface and the back surface of the detachable frame 9, and the bent portion 7a of the earth electrode 7 and the electrode plate 1
The partition 16 is erected from the base plate 11 between the columnar body 13 and the lid 17 of the partition 16 to provide the high-voltage electrode wires 8.
, The intrusion of dust near the electrode plate 10 was extremely reduced, and it was possible to prevent the leakage of electricity with the dust. Therefore, the high voltage applied between the high voltage electrode wire 8 and the earth electrode 7 was reduced. It was able to maintain and efficiently collect dust.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the embodiments shown in the drawings. 1 is a frame of an air purifier, 2 is an air inlet provided on the front of the frame 1, and 3 is an air provided on an upper portion of the frame 1. The inside of the frame 1 is divided into a front chamber and a rear chamber by a partition plate 18, and the air outlet 3 is provided in the rear chamber.

Reference numeral 4 denotes an air blower fan provided in a rear chamber of the frame body 1, 5 denotes a filter mechanism provided in a front chamber on the suction side of the air blower fan 4 for collecting suspended matter in air, and 5a denotes a filter. The filter 5 constituting the mechanism 5 is a detachable frame provided with a filter 5a, and the detachable frame 9 is provided with a handle 9a.
Thereby, it can be pulled out along the slide rail 1 a provided on the frame 1.

Reference numeral 18a denotes an opening provided in the partition plate 18 of the frame 1, and 4a denotes a motor of the air blowing fan 4 mounted at the opening 18a of the partition plate 18, and is provided in the rear chamber. 4 is an opening 18 from the air suction port 2 of the frame 1.
a, the air in the front chamber of the frame 1 is moved by the motor 4a when the motor 4a is rotated.
Is sucked into the rear chamber from the opening 18a around the air outlet and is blown out from the air outlet 2 in the upper part of the frame 1.

Reference numeral 11 denotes a base plate attached to the inner edge of the detachable frame 9, reference numeral 6 denotes a metal plate whose periphery is attached to the base plate 11, and reference numeral 7a denotes a plurality of folding plates formed by cutting the metal plate 6. A plurality of ground electrodes 7 having a U-shaped cross section, which are bent portions and whose filtering filter 5a side is opened by the bent portions 7a.

Reference numeral 7b denotes an opening in the metal plate 6 formed by the bent portion 7a, and reference numeral 8 denotes a high-voltage electrode line extending between the adjacent bent portions 7a so as to face the opening 7b. It is made of a wire longer than the metal plate 6, and both ends of a plurality of high-voltage electrode wires 8 are attached to the electrode plate 10, respectively. The attachment / detachment frame 9 to which the metal plate 6 is attached is made of a synthetic resin having insulating properties. A column 13 is formed on the base plate 11, and the electrode plate 10 is fixed to the upper end of the column 13. .

Reference numeral 12 denotes an earth connection plate provided on the side plate of the attachment / detachment frame 9, and 9b denotes an earth connection plate 1 provided on the side plate of the attachment / detachment frame 9.
A part of the ground connection plate 12 extends from the through hole 9b toward the metal plate 6, and is attached to the base plate 11 together with the metal plate 6 with a ground screw 6a. I have.

Reference numeral 14 denotes a high-voltage connection plate provided on the side plate of the detachable frame 9 opposite to the ground connection plate 12, and 9c denotes a cutout provided on the side plate of the detachable frame 9 near the high-voltage connection plate 14. ,
A part of the high-voltage connection plate 14 extends to the back surface of the column 13 of the base plate 11 through the notch 9c, and a high-voltage electrode screw 10a for fixing the electrode plate 10 of the column 13 penetrates the column 13. The fixing screw of the high-voltage connecting plate 14 is also used on the back surface of the base plate 11, and the high-voltage connecting plate 14 is electrically connected to the electrode plate 10.

Reference numeral 15 denotes a power supply terminal provided on the frame 1. When the detachable frame 9 is correctly mounted in the frame 1, the power supply terminals 15 are connected to the ground connection plate 12 and the high-voltage connection plate 14, respectively. The high voltage that is in contact and generated by a high-voltage generating means (not shown), which is a power supply unit of the filter mechanism 5, is applied between the high-voltage electrode wire 8 in the detachable frame 9 and the ground electrode 7. For this reason, dust that has flowed into the frame 1 together with air by the rotating air blowing fan 4 is charged while passing through the gap of the bent portion 7a from the opening 7b, is collected by the filter 5a, and is cleaned up. The lost air is returned from the air outlet 3 into the room.

At this time, there is a case where the charged dust does not travel to the filter 5a but diffuses and adheres to the base plate 11 of the detachable frame 9. If the attached dust absorbs moisture, the insulation performance deteriorates. There is a risk of causing an electric leakage phenomenon. If there is a gap in the flow path of the current due to the electric leakage, a discharge phenomenon occurs in the gap, which may be accompanied by an abnormal discharge sound. According to the present invention, by disposing the high-voltage connection plate 14 on the back surface of the base plate 11, there is no gap in which abnormal discharge may occur, so that the complaint due to the discharge noise can be completely prevented.

Reference numeral 16 denotes a partition wall standing upright from the base plate 11 of the detachable frame 9 between the columnar body 13 of the electrode plate 10 and the bent portion 7a of the ground electrode 7, and 17 denotes a side plate of the partition 16 and the detachable frame 9. The cover 16a covers the space surrounded by the following. The reference numeral 16a denotes a transmission portion provided on the partition 16 for connecting the high-voltage electrode wires 8 to the electrode plate 10 in the space covered by the cover 17, and the metal plate 6 The partition 16 prevents the base plate 11 from being attached to the column 13 side, and is attached to the back surface of the base plate 11.

The metal plate 6 and a part of the high-voltage connection plate 14 are located on the back side of the base plate 11, but this part is on the upstream side of the charging unit for the dust, so that the adhesion of the dust is extremely small. ,
There is little risk of electric leakage. Reference numeral 19 denotes a first filter disposed on the upstream side of the charging unit, and a base plate 1 of the first filter 19.
If the first-side filter mounting portion 11a is formed between the metal plate 6 and the high-voltage connection plate 14, the metal plate 6
And the high-voltage connection plate 14 is exposed, and there is no risk of electric leakage between them.

[0022]

As described above, according to the present invention, the metal plate 6 of the ground electrode 7 is attached to the base plate 11 as in the prior art.
A part of the earth connection plate 12 is attached along the surface of the base plate 11, but the electrode plate 10 on which the high-voltage electrode wires 8 are stretched is attached on a column 13 raised from the base plate 11. The high-voltage connection plate 14 penetrates the columnar body 13 from the back surface of the base plate 11 and is electrically connected to the electrode plate 10. For this reason, since only the high-voltage electrode wires 8 and the electrode plate 10 are exposed on the surface of the base plate 11 in the detachable frame 9, there is a column 13 and a base between the electrode plate 10 and the metal plate 6. The gap is continuous on the surface of the plate 11 and a gap that causes abnormal discharge is not formed.

The dust charged by applying a high voltage between the high-voltage electrode wire 8 and the ground electrode 7 rides on the wind of the air blowing fan 4 and is adsorbed on the filter 5a, but partially diffuses. As a result, the dust may adhere to the vicinity of the base plate 11 of the attachment / detachment frame 9, and if this dust absorbs moisture, the insulation performance deteriorates.

In the structure of the present invention, the voltage applied between the metal plate 6 attached to the base plate 11 of the detachable frame 9 and the electrode plate 10 causes the dust adhering to the columnar portion 13 and the surface of the base plate 11 to move. Insulation performance may be reduced due to electrical leakage, and this leakage may cause deterioration of the charged state to dust.However, since there is no gap, it does not immediately lead to a complaint such as abnormal discharge noise, and the charged state The decrease in dust collection efficiency due to the deterioration of the dust can be recovered by regular cleaning by the operator.

The electrode plate 10 of the high-voltage electrode wire 8 and the metal plate 6 of the earth electrode 7 are attached to the front and back surfaces of the base plate 11 of the detachable frame 9, and the bent portion 7a of the earth electrode 7 is connected to the electrode plate. 10 from the base plate 11 to the partition 16
The electrode plate 1 is further erected by the lid 17 of the partition 16.
If 0 is covered, dust hardly adheres to the surfaces of the columnar body 13 and the base plate 11 near the electrode plate 10 and the leakage of electricity due to the absorbed moisture can be prevented, so that good dust collection efficiency can be maintained forever. The interval between regular cleanings can be lengthened.

[Brief description of the drawings]

FIG. 1 is a partial vertical sectional view of a detachable frame to which a filter according to an embodiment of the present invention is attached.

FIG. 2 is a partial cross-sectional view of a detachable frame to which a filter according to an embodiment of the present invention is attached.

FIG. 3 is a sectional view of an air purifier embodying the present invention.

FIG. 4 is a sectional view of a main part of a high-voltage connection plate showing an embodiment of the detachable frame according to the present invention.

FIG. 5 is a sectional view of a main part of a ground connection plate showing an embodiment of a detachable frame according to the present invention.

FIG. 6 is a cross-sectional view of a main part of a high-voltage connection plate showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 2 Air inlet 3 Air outlet 4 Air blower fan 5 Filter mechanism 5a Filtration filter 6 Metal plate 7 Ground electrode 7a Bending portion 7b Opening 8 High voltage electrode wire 9 Removable frame 10 Electrode plate 11 Base plate 12 Ground Connection plate 13 Columnar body 14 High-voltage connection plate 15 Power supply terminal 16 Partition wall 16a Transmission part 17 Lid

Claims (2)

[Claims] An air inlet and an air outlet are provided in a frame.
And an air blowing fan 4 is arranged in an air flow path from the air suction port 2 to the air blowing port 3 in the frame 1 to collect suspended matter in the air on the suction side of the air blowing fan 4. A filter mechanism 5 having a filtering filter 5a is provided, and a plurality of ground electrodes 7 having a U-shaped cross section are formed by a plurality of bent portions 7a formed by cutting a single metal plate 6. A high-voltage electrode wire 8 longer than the metal plate 6 is disposed between the adjacent bent portions 7a facing the opening 7b formed by processing, and the detachable frame 9 of the filter mechanism 5 provided detachably from the frame 1 is insulated. An electrode plate 10 formed of a synthetic resin having characteristics and having the high-voltage electrode wires 8 stretched thereon and a metal plate 6 of an earth electrode 7 are attached to a detachable frame 9.
The metal plate 6 of the earth electrode 7 is attached to the base plate 11 of the attachment / detachment frame 9, the earth connection plate 12 provided on the side plate of the attachment / detachment frame 9 conducts with the earth electrode 7, and The electrode plate 10 on which the high-voltage electrode wires 8 are stretched is mounted on a column 13 raised from the base plate 11, and a high-voltage connection plate 14 is provided on the back surface of the base plate 11 where the column 13 is located. The voltage connection plate 14 penetrates through the inside of the columnar body 13 and conducts with the electrode plate 10, and connects the ground connection plate 12 and the high-voltage connection plate 14 of the detachable frame body 9 mounted on the frame body 1 to the power supply terminals of the frame body 1. 15. A filter frame structure for an air purifier, wherein the filter frame structure is brought into contact with the filter frame. 2. An electrode plate 10 on which a high-voltage electrode wire 8 is stretched and a metal plate 6 of an earth electrode 7 are separately arranged on the front and back surfaces of a base plate 11 of a detachable frame 9, and a bent portion of the earth electrode 7 is provided. A partition 16 is erected from the base plate 11 between the base member 11 and the columnar body 13 of the electrode plate 10, and a part of the partition 16 is provided with a high voltage electrode wire 8.
Is formed, and the partition 16 is attached to the detachable frame 9.
The filter frame structure of an air purifier according to claim 1, further comprising a lid (17) connected to the side plate (1) and covering a space surrounded by the partition (16) and the side plate of the detachable frame (9).