JP2001079077A - Air cleaner and its ionizing unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate cleaning of the ionizing part by making the ionizing part and counter electrodes separable when the ionizing part is cleaned. SOLUTION: Ionizing wires 15 and counter electrodes 13 are made to be a separable constitution. Concretely, an ionizing part (an ionizing and dust collecting unit) is formed by a main frame 11 and a sub-frame 12 and the sub- frame 12 is removably constituted to the main frame 11. In addition, the counter electrodes 13 are arranged on the main frame 11 and the ionizing wires 15 are stretched on the sub-frame 12. Therefore, there exists no possibility of cutting the ionizing wires during cleaning and cleaning can be well performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purifier, and more particularly to an air purifier that charges dust particles contained in air by an ion shower by electric discharge and captures the charged dust particles by the principle of electrostatic adsorption. About the machine. The invention also relates to an ionization unit for such an air purifier.

[0002]

2. Description of the Related Art There is known an electrostatic precipitating air purifier that charges dust particles contained in air and captures the charged dust particles by electrostatic attraction. Such an air purifier is provided with an ionization unit (discharge unit) for charging dust particles. The ionization unit is provided with an ionization line as a discharge electrode and a counter electrode, and dust particles contained in air passing between the ionization line and the counter electrode are charged by an ion shower generated by the discharge of the ionization line.

[0003] The charged dust particles are captured by being electrostatically adsorbed in the dust collecting portion.

[0004]

In an electric dust collector type air cleaner, in order to maintain good dust collecting performance, the ionizing section and the dust collecting section are periodically cleaned, and a filter of the dust collecting section is used. Need to be replaced. Conventionally, an ionization line and a counter electrode provided in an ionization unit are attached to a common frame and integrated. For this reason, when cleaning the ionization part, the ionization line and the counter electrode must be cleaned together.

[0005] Incidentally, the ionized wire is an extremely thin metal wire, and may be cut if care is not taken during cleaning. In addition, while the contamination of the ionization line is relatively small, the counter electrode receiving the discharge of the ionization line is easily stained, and it is necessary to carefully clean the counter electrode during cleaning. Under such circumstances, there has been a problem that the conventional ionization unit in which the ionization line and the counter electrode are integrated is difficult to clean when performing regular cleaning.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to provide an ionization unit which can be easily cleaned and an air cleaner having such a unit. It is another object of the present invention to provide an ionization unit which does not have a risk of cutting an ionization line during cleaning and an air cleaner having the unit.

[0007]

Means for Solving the Problems and Effects of the Invention The invention according to claim 1 has an ionization line and a counter electrode arranged opposite to the ionization line, and is contained in the air by discharge generated from the ionization line. An air purifier that charges dust particles and captures the charged dust particles in a dust collection unit, wherein the ionization line and the counter electrode are configured to be separable.

According to a second aspect of the present invention, the ionization line is extended on a subframe, and the counter electrode is
Provided in the main frame, the sub-frame is configured to be detachable from the main frame, and when mounted, the ionization line and the counter electrode face in a predetermined state, An air purifier according to claim 1.

The invention according to claim 3 is the air purifier according to claim 2, wherein the main frame is provided with a dust collecting portion for capturing charged dust particles. . The invention according to claim 4 is characterized in that the dust collecting section includes a filter arranged so that its periphery is supported by the main frame and which captures charged dust particles in the air by electrostatic adsorption. An air purifier according to claim 3.

According to a fifth aspect of the present invention, an end portion of the main frame is provided with an accommodating portion for accommodating a roll filter in which a film filter having a length usable for a plurality of times is wound in a roll shape. The air purifier according to claim 3 or 4, characterized in that: The invention according to claim 6 is
An ionization unit for an air purifier that charges dust particles contained in air and captures the charged dust particles, comprising: a subframe; an ionization line stretched over the subframe; a main frame; and a main frame. Having a counter electrode provided on the frame, the sub-frame is configured to be removable from the main frame, and when mounted,
An ionization unit for an air purifier, wherein the ionization line and the counter electrode are configured to face each other in a predetermined state.

According to a seventh aspect of the present invention, the main frame is provided with a dust collecting portion, and the dust collecting portion is provided with charged dust in the air arranged so that its periphery is supported by the main frame. The ionization unit for an air purifier according to claim 6, further comprising a filter that captures particles by electrostatic adsorption. The invention according to claim 8 is characterized in that an end portion of the main frame is provided with an accommodating portion capable of accommodating a roll filter in which a film filter having a length usable for a plurality of times is wound in a roll shape. An ionization unit for an air purifier according to claim 6.

According to the first aspect of the invention, since the ionization line and the counter electrode can be separated, they can be separated and washed separately. Therefore, the counter electrode to which dirt is likely to adhere
Careful cleaning can be performed without concern for ionizing radiation. In addition, there is no possibility of cutting the ionized rays during cleaning. According to the configuration of claim 2 or 6, the ionization line and the counter electrode are provided on the sub-frame and the main frame, respectively. The sub-frame is detachable from the main frame. Therefore, at the time of use, if the sub-frame is mounted on the main frame, the ionization line and the counter electrode are combined so as to face each other in a predetermined state. At the time of cleaning, the main frame fitted with the sub-frame is taken out of the air purifier, and the sub-frame is removed from the main frame, so that the ionization line and the counter electrode can be easily separated.

According to the third aspect of the present invention, since the main frame is provided with the dust collecting portion, the ionizing portion and the dust collecting portion can be integrated. According to the configuration of claim 4 or 7, the ionization unit and the dust collection unit are integrated into a unit, which is convenient. Further, as in the fifth or eighth aspect, the dust collecting portion may have a configuration in which a film filter that can be used a plurality of times can accommodate a roll filter wound in a roll shape. In this case, for example, when the ionization unit is periodically cleaned, the dirty membrane filter can be cut off, a new membrane filter can be pulled out from the roll filter, and easily set on the main frame.

As described above, according to the present invention, it is possible to provide an ionization unit which is easy to clean, has no risk of cutting an ionization line at the time of cleaning, and is excellent in maintainability, and an air cleaner having the unit. .

[0015]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIG.
FIG. 1 is an exploded perspective view showing an overall configuration of an air purifier 1 according to one embodiment of the present invention.

The air purifier 1 has a main body housing 2 and a front panel 3 fitted to the front surface of the main body 2. The main body housing 2 is provided with a motor (not shown) and a blower fan rotated by the motor. It is blown out from 4. A display and operation unit 5 is provided below the front surface of the main body housing 2. The display and operation unit 5 includes an operation unit for turning on / off the power of the air purifier 1 and switching an operation mode, and a display unit for displaying an operation state.

An ionization / dust collection unit 6 is housed in the main body housing 2. Ionization / dust collection unit 6
Is provided with a pre-filter 7 on its front side. The pre-filter 7 is for capturing relatively large dust and dirt. As will be described later, the ionization / dust collection unit 6 incorporates an ionization line and a counter electrode for charging dust particles contained in air passing through the unit. On the rear side of the ionization / dust collection unit 6, a film filter 16 for capturing charged dust particles is mounted. The film filter 16 is pulled out from the roll filter 8.

In the main body housing 2, further behind the ionization / dust collection unit 6, there are provided photocatalyst elements 9 arranged in two layers before and after and an inverter lamp 10 arranged therebetween. The photocatalyst element 9 is a thin plate-shaped body having a honeycomb structure that passes air sucked from a front surface to the rear, and supports titanium oxide and other photocatalysts. The inverter lamp 10 emits light to the photocatalytic element 9 to activate the photocatalyst carried on the element. By activating the photocatalytic element, odor components in the air can be removed. It also has antibacterial and antiviral effects.

FIG. 2 is a perspective view of the ionization / dust collection unit 6. The ionization / dust collection unit 6 has a main frame 11 and a sub frame 12. The main frame 11 is formed of an insulating material such as a resin, and an opening surrounded by a frame is provided with a counter electrode 13. In this embodiment, the counter electrode 13 has nine counter electrodes 13 that are vertically arranged and extend in parallel. Each counter electrode 13
Has a U-shaped cross-sectional shape, and the adjacent counter electrodes 13 are connected to each other by a large number of thin concavely curved connecting pieces 14. That is, the nine opposing electrodes 13 are formed from one metal plate by sheet metal forming. Adjacent counter electrode 13
The reason why they are connected to each other by a large number of thin connecting pieces 14 is that air passes between them.

The sub-frame 12 is also formed of, for example, an insulating material such as a resin, and has eight ionization lines 15 extending vertically extending in parallel in an opening surrounded by the frame.
The sub-frame 12 is configured to be detachable from the main frame 11. When the sub-frame 12 is mounted on the main frame 11, the ionization line 15 is arranged between the opposing electrodes 13 and extends in parallel with the opposing electrodes 13. That is, eight ionization lines 15
And the nine opposing electrodes 13 are alternately opposed in parallel.

Further, by removing the sub-frame 12 from the main frame 11, the ionization line 15 can be separated from the counter electrode 13. Ionization line 15
And the counter electrode 13 can be separated from each other,
In addition, there is an advantage that maintenance of the counter electrode 13, specifically, cleaning thereof is easy. That is, dirt adheres to the ionization line 15 and the counter electrode 13 with use.
Need to be washed. Ionization line 15 and counter electrode 13
In an integrated configuration that cannot be separated, the thin ionization line 15 may be cut off during cleaning unless care is taken. Further, the ionization line 15 is in the way, and the counter electrode 13
There is also a problem that the connecting piece 14 is difficult to clean.

In this embodiment, the ionization line 15 is separated from the counter electrode 13, and both can be washed or cleaned separately. Therefore, there is no possibility of cutting the ionization line 15 when cleaning the counter electrode 13. In addition, the counter electrode 13 can be carefully cleaned without worrying about the ionization line 15. At the lower end of the main frame 11, a roll filter accommodating portion 17 is integrally formed. As shown in FIG. 1, a roll filter 8 in which a film filter having a length that can be used a plurality of times is wound in a roll shape is housed in the roll filter housing portion 17. The one-time film filter 16 pulled out from the roll filter 8 is supported on the rear surface side of the main frame 11. The film filter 16 is a filter for electrostatic attraction, and captures dust particles charged by an ion shower generated by the ionization line 15 by electrostatic attraction.

When cleaning the counter electrode 13, the roll filter 8 and the drawn-out film filter 16 are removed from the main frame 11. The fitting of the sub-frame 12 to the main frame 11 is performed as follows. The lower frame 11L (the upper surface of the roll filter housing 17) of the main frame 11 has two engagement holes 18 on the left and right.
Are formed. The lower frame 12L of the sub-frame 12 is provided with two projections 19 that engage with the engagement holes 18. The projection 19 is fitted into the engagement hole 18 so that the sub-frame 12
By rotating the upper frame 12U side to the opposite side (rearward side) around the lower frame 12L,
1 can be fitted with the sub-frame 12.
On the upper frame 12U of the sub-frame 12, two locking pieces 20 are provided right and left so as to protrude upward. On the other hand, two locking pieces 21 are also provided on the upper frame 11U of the main frame 11 so as to project forward.

As shown in FIG. 3A, the main frame 11
When the sub-frame 12 is fitted to the upper frame 12U, the two locking pieces 2 provided on the upper frame 12U of the sub-frame 12
0 and 2 provided on the upper frame 11U of the main frame 11.
The two locking pieces 21 are adjacent to each other in the orthogonal direction. As shown in FIG. 3B, the locking pieces 20 and 21 are provided with small steps 20s and 21s, respectively, and these steps 20s and 21s correspond to the upper frame 11U and the sub-frame 12 of the main frame 11, respectively. The upper frame 12U is locked. Therefore, the fitted state of the sub-frame 12 to the main frame 11 is maintained.

When removing the sub-frame 12 from the main frame 11, as shown in FIG.
A force may be applied so as to push 0 and 21 in the direction opposite to the steps 20s and 21s, respectively, and the upper frame 12U side of the sub-frame 12 may be turned to the near side (front side). In this embodiment, the pre-filter 7 is mounted on the front side of the sub-frame 12.

More specifically, referring to FIG. 2, a right frame 12R and a left frame 12L of the sub-frame 12 have
Guide bar 2 for sliding pre-filter 7 up and down
3 are formed. The guide bar 23 is provided with a hook 24 having an L-shaped cross section. Both sides of the prefilter 7 slid along the guide bar 23 are prevented from coming off the guide bar 23 by hooks 24. Therefore, the pre-filter 7 can be mounted on the front side of the sub-frame 12 by sliding the pre-filter 7 from above to below the sub-frame 12.

FIG. 4 is a sectional view taken along the line AA of FIG. 2, showing the ionization / dust collection unit 6 in an assembled state. The white arrows in FIG. 4 indicate the flow of air. When the pre-filter 7 is mounted on the front surface of the sub-frame 12, the pre-filter 7 protects the ionization line 15. The ionization line 15 is an extremely thin line and may be difficult to see. When the ionization / dust collection unit 6 is detached from the main body housing 2, the hand touches the ionization line and damages the hand or cuts the ionization line. There is a risk. Conventionally, the pre-filter 7 is mounted on the rear side of the front panel 3 (see FIG. 1). Therefore, when the front panel 3 is removed, the front of the ionization / dust collection unit 6 appears. 15 was exposed. Therefore, when the ionization / dust collection unit 6 is detached, there is a problem that the ionization line 15 is cut off without noticing the ionization line 15.

In this embodiment, the pre-filter 7 is mounted on the sub-frame 12, and the pre-filter 7 protects the ionization line 15, as shown in FIG. Therefore, when the ionization / dust collection unit 6 is detached from the main housing 2, the ionization wire 15 protected by the pre-filter 7 is not accidentally cut. FIG. 5 is a rear view of the subframe 12. With reference to FIG. 5, the extension structure of the ionization wire 15 will be described.

The eight ionization wires 15 extending parallel to the opening are constituted by two thin metal wires 15A and 15B. The two metal wires 15A and 15B are extended from the lower frame 12L to the upper frame 12U, respectively, and are connected to the upper frame 12U.
And U-turned at the lower frame 12L, and U-turned again at the lower frame 12L and stretched to the upper frame 12U, and the upper frame 12U
Is further U-turned and returned to the lower frame 12L. One end of each of the metal wires 15A and 15B is fixed to the base fitting 25, and the other end of each of the metal wires 15A and 15B is fixed to the base fitting 25 via tension adjusting coil springs 26A and 26B.

The base fitting 25 is electrically connected to a high voltage application electrode 27 provided on a guide projection 28 projecting above the left frame 12L of the sub-frame 12. Left frame 1
2L, on the lower side at a predetermined distance from the guide projection 28,
A guide projection 29 that is paired with the guide projection 28 is provided. The guide projection 29 is provided with an earth electrode 30, and a connection terminal 31 electrically connected to the earth electrode 30 is provided in the vicinity thereof.

When the sub-frame 12 is fitted to the main frame 11, the connection terminal 31 comes into contact with the counter electrode 13 provided on the main frame 11 and is electrically connected. Therefore, by applying a high voltage from the power supply circuit to the high voltage application electrode 27 and connecting the ground electrode 30 to the ground side of the power supply circuit, a discharge can be caused between the ionized line 15 and the counter electrode 13. .

In this embodiment, guide projections 28 and 29 are provided on the subframe 12 side, and the high voltage
And a ground electrode 30. For this reason, since the positioning of the high voltage application electrode 27 and the ground electrode 30 can be performed in the same frame (sub-frame 12), there is an advantage that dimensional variation does not occur in the electrical connection and the reliable electrical connection can be performed. .

The guide projections 28 and 29 may be provided not on the subframe 12 but on the main frame 11 side, and the high voltage application electrode 27 and the ground electrode 30 may be arranged on the main frame 11 side. The present invention is not limited to the embodiment described above, and various modifications can be made within the scope of the claims.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an overall configuration of an air purifier 1 according to an embodiment of the present invention.

FIG. 2 is a perspective view of an ionization / dust collection unit according to one embodiment of the present invention.

FIG. 3 is a view for explaining a locking structure for fitting the sub-frame 12 to the main frame 11 and fixing the fitted state in one embodiment of the present invention.

FIG. 4 is a sectional view taken along the line AA of FIG. 2, showing an ionization / dust collection unit 6 according to an embodiment of the present invention in an assembled state.

FIG. 5 is a rear view of the subframe according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air purifier 6 Ionization / dust collection unit 7 Pre-filter 8 Roll filter 11 Main frame 12 Sub-frame 13 Counter electrode 15 Ionization line 16 Film filter

Claims (8)

[Claims] 1. An ionization line (15) and an ionization line (1).
5) has a counter electrode (13) arranged opposite to the dust electrode, and charges the dust particles contained in the air by a discharge generated from the ionizing wire (15) so that the charged dust particles are captured by the dust collecting portion. The air purifier (1), wherein the ionization line (15) and the counter electrode (13) are configured to be separable. 2. The sub-frame (12), wherein the ionization line (15) is extended on a sub-frame (12), and the counter electrode (13) is provided on a main frame (11). Is detachably attached to the main frame (11).
2. The air purifier according to claim 1, wherein the ionizing wire (15) and the counter electrode (13) face each other in a predetermined state. 3. The air purifier according to claim 2, wherein the main frame is provided with a dust collecting portion for capturing charged dust particles. 4. The dust collector has a main frame (1) surrounding the dust collector.
4. The air purifier according to claim 3, further comprising a filter (16) arranged to be supported by (1) to capture charged dust particles in the air by electrostatic adsorption. 5. An accommodation portion (17) for accommodating a roll filter (8) in which a film filter having a length usable for a plurality of times is wound in a roll shape is provided at one end of the main frame (11). 4. The method according to claim 3, wherein
Or the air purifier according to 4. 6. An ionization unit for an air cleaner for charging dust particles contained in air and capturing the charged dust particles, comprising: a sub-frame (12); Ionization line (15)
A main frame (11); and a counter electrode (13) provided on the main frame (11).
The sub-frame (12) is configured to be detachable from the main frame (11). When the sub-frame (12) is attached, the ionizing wire (15) and the counter electrode (13) are in a predetermined state. An ionization unit for an air purifier, wherein the ionization unit is configured to face each other. 7. The main frame (11) is provided with a dust collecting part, and the dust collecting part is a charged dust in the air which is arranged so that its periphery is supported by the main frame (11). Filter for capturing particles by electrostatic adsorption (16)
7. The ionization unit for an air purifier according to claim 6, comprising: 8. An accommodation portion (17) for accommodating a roll filter (18) in which a film filter having a length usable for a plurality of times is wound in a roll shape is provided at one end of the main frame (11). 7. The method according to claim 6, wherein
Or an ionization unit for an air purifier according to 7.