JPS6236525Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of an air cleaner in which an ionization section, a dust collecting electrode, and a blower are arranged in a main body case.

Generally, in order to make this type of air cleaner smaller and to increase dust collection efficiency, an important point is how to improve the dust collection efficiency by the dust collection electrode. and,
In the case where the dust collecting electrode is detachable from the opening of the main body case to improve exchangeability, an important issue is how to electrically short-circuit the dust collecting electrode when it is attached.

The present invention has been developed in view of such technical problems, and one embodiment thereof will be described below with reference to the drawings.

1 is a plastic main body case divided into two parts, an upper case 1a and a lower case 1b, and an air inlet 3 having a grille 2 sandwiched between the upper case 1a and the lower case 1b on the front, and an air inlet 3 on the rear end of the upper surface. An ionization section A, a dust collecting and deodorizing section B, and a blower section C are sequentially disposed in a ventilation path from the air suction port 3 to the air blowout port 4 in which the air blowout ports 4 are formed, respectively, and on the side of the blower section C. A high voltage generator (not shown) is provided. Each part will be explained in detail below.

In the ionization part A, 5, 5 is a conductive plate for a ground terminal with excellent elasticity, and is connected to the lower case 1b of the main body.
The holes 7, 7 are fitted onto the protrusions 6, 6 formed on the left and right sides of the case 1, and the lower case 1b is inserted and positioned into the claw pieces 8, 8 formed on the lower case 1b as shown in FIG. 9 is a lower opposing electrode that is grounded by a cord or the like, and insulator insertion cases 10, 10 are integrally formed with the lower case.
Both ends are inserted into the engaging hole 1 as shown in Figure 4.
The engaging claws 12, 12 of the lower case 1b are fitted and engaged with the lower case 1b and fixed to the lower case 1b. For this reason, the cut and raised pieces 13 formed on the conductive plates 5, 5 are pressed by the lower opposing electrode 9, and the two come into elastic contact to maintain a good electrical contact state, and the conductive plates 5, 5
Its front end rises due to its springiness. Insulating insulators 14, 14 are inserted into the left and right insertion cases 10, 10, respectively, for supporting the linear discharge electrode 15, to which a positive high voltage of 6 to 7 KV is applied from the high voltage generating section.

Reference numeral 16 denotes a metallic protective plate formed of wire mesh or punched metal, which is inserted between the front surfaces of the insertion cases 10, 10 and the ribs 17 protruding in front of the insertion cases 10, and whose lower end is connected to the rising edge of the conductive plates 5, 5. It is elastically supported by the portion 5a. Reference numeral 17 denotes an upper counter electrode, which is placed on the protection plate 16 and the insulators 14, 14, and the upper end of the protection plate 16 protrudes above the insulators 14, 14, and is bent with the raised pieces 17a, 17a of the upper counter electrode 17. Piece 1
7b, and the upper case 1a is placed over the upper counter electrode 17, and the upper case 1a and the lower case 1 are
b are coupled with screws (not shown), thereby pressing the upper opposing electrode 17 with the rib 18 of the upper case 1b. As a result, using the elasticity of the conductive plates 5, 5, a protective plate 16 is inserted between the upper opposing electrode 17 and the conductive plates 5, 5.
is held elastically to maintain good electrical contact between the three. Reference numeral 19 denotes an elastic body attached to the upper surface of the upper counter electrode 17, which comes into contact with the rib 18 of the case 1a, and has the effect of further improving the elasticity of the protection plate 5.

The dust collecting/deodorizing section B is located on the leeward side of the ionizing section A, and has an opening 20 in a corresponding part of the upper case 1a.
is formed, and the insulating framed dust collecting electrode 21 is removably housed therein along the rear ends of the storage cases 10, 10 and the guide ribs 33 of the lower case 1b. This framed dust collecting electrode 21 includes a plastic case 24 consisting of a front case 24a and a rear case 24b which are detachable by elastic engagement between claws 22 and holes 23 as shown in FIG. The case 24 is composed of a plate-shaped dust collection electrode 25 made of foam metal and an activated carbon filter 29 placed on the leeward side of this electrode. Conductive pieces 26, 26 are attached to make the electrodes the same polarity as the counter electrodes 9, 17. The conductive pieces 26, 26 have a cross-shaped shape as shown in FIG.
a, a contact piece 26b connected to the lower part of the insertion piece 26a and in contact with the front surface of the front case 24a, and a push contact piece 26c connected to the diagonally downward rear side of the contact piece 26b.
It consists of a rising piece 26d that rises above the insertion piece 26a with a predetermined distance from the rising rib 28 of the front case 24a.

To assemble the framed dust collecting electrode 21, first insert the dust collecting electrode 25 fully into the front case 24a while rotating the pressing piece 26c forward about the insertion piece 26a and the contact piece 26b. , insert the activated carbon filter 29 and attach the rear case 2 to the front case 24a.
Combine 4b. Then, the rising piece 26d is sandwiched between the dust collection electrode 25 and the activated carbon filter 29, and the pressing piece 26
c is in a rearwardly rotated state, and it becomes easy to insert the framed dust collecting electrode 21 through the opening 20 and bring the conductive pieces 26, 26 into contact with the conductive plates 5, 5.

To attach the framed dust collection electrode 21, insert it through the opening 20, attach the opening/closing lid 30 to the opening 20, and then close the conductive piece 2.
When the framed dust collection electrode 21 is pressed by the rib 32 of the lid 30 against the elastic force of the conductive pieces 26 and 26 and locked as shown in FIG. The tip makes surface contact elastically with the conductive plates 5, 5 so as to maintain good electrical contact,
Due to this elastic contact, the upright piece 26d rotates forward and comes into elastic surface contact with the dust collecting electrode 25, so that the conductive piece 26d
6, 26 and the dust collection electrode 25 are maintained well, and the dust collection electrode 25 is well grounded.

In this way, when the lid 30 is closed, the conductive pieces 26, 2
6 is in elastic contact with the conductive plates 5, 5, the lid 30
When opened, the conductive pieces 26, 26 have the effect of pushing the framed dust collecting electrode 21 upward, and the framed dust collecting electrode 21
It becomes easy to take out. However, in order to make it easier to take out the framed dust collecting electrode 21, it is desirable to separately provide a spring body (not shown) at the part of the lower case 1b opposite to where the framed dust collecting electrode 21 is inserted.

Further, the blower section C is provided with a cross-flow type blower 31 using the cases 1a and 1b as blower casings, which sucks indoor air from the suction port 3, swings the flow path by about 90 degrees, and blows it out from the blower port 4. It is.

In the air purifier configured as described above, when a positive high voltage is applied to the discharge electrode 15 and the blower 31 is rotated, contaminated air flows into the case from the suction port 3 and faces the discharge electrode 15 above and below. Electrodes 17,9
Dust in the contaminated air is ionized by the corona discharge that occurs between the two. The ionized dust is efficiently adsorbed by the dust collecting electrode 25 at ground potential, while the odor of the contaminated air is adsorbed by the activated carbon filter 29, so that the contaminated air becomes clean air and is blown out from the outlet. be.

As described above, the present invention includes an ionization section consisting of a discharge electrode and a counter electrode, and a blower arranged inside the main body case, and a dust collection electrode inserted into an insulating frame that can be freely attached and detached from an opening formed in the main body case. The conductive piece is disposed on the leeward side of the ionization section, and when the insulating framed dust collecting electrode is attached, one end of the conductive piece is in pressure contact with the dust collecting electrode and the other end is in pressure contact with a terminal having the same polarity as the counter electrode. Because it is attached to a sexual frame body,
By attaching an insulating framed dust collection electrode, the elasticity of the conductive piece can be used to improve electrical short-circuiting of the dust collection electrode, making it possible to provide an air purifier with high dust collection efficiency that can be miniaturized. .

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of the present invention and an embodiment, Fig. 2 is a cutaway exploded perspective view of main parts, Fig. 3 is an exploded perspective view of main parts, Figs. 4 and 5 are perspective views of main parts, and Fig. 6 is a perspective view of main parts. is a side view of the main part. 1... Case, 5, 5... Conductive plate, 9, 17...
... Counter electrode, 15 ... Discharge electrode, 21 ... Framed dust collection electrode, 25 ... Dust collection electrode, 26 ... Conductive piece.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) An ionization section and a blower section consisting of a discharge electrode and a counter electrode are disposed within a main body case, and a dust collection electrode inserted into an insulating frame is formed in the main body case. The insulating framed dust collecting electrode is attached to the insulating framed dust collecting electrode so as to be detachably attached to the dust collecting electrode, and the other end is pressed to the terminal of the same polarity as the counter electrode. An air purifier characterized in that a conductive piece is attached to the insulating frame. (2) The air purifier according to claim 1, in which the dust collecting electrode is a foamed metal plate.