JPH082424B2 - Electric dust collector type air purifier - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an electrostatic precipitator-type air cleaner that collects and removes dust in the air by a dust collecting element to which a high voltage is applied.

<Prior Art> Conventionally, in the electric dust collector type air cleaner, for example, a high voltage generator for generating a high voltage required for dust collection from a household power source and applying it to the dust collection element is used. ing.

In order to apply a high voltage from the high voltage generator to the dust collecting element, a high voltage lead wire has been conventionally used.

<Problems to be Solved by the Invention> However, as described above, when the high voltage generator and the dust collecting element are connected by the high voltage lead wire, in addition to the high voltage lead wire, the high voltage lead wire is connected. Needing bolts, nuts, terminal boards, insulators, etc., not only increases the number of parts and is disadvantageous in terms of cost, but also requires a lot of man-hours for connection, resulting in poor productivity. Further, it is not easy to replace the dust collecting element that collects a large amount of dust.

Further, in the connection using the high-voltage lead wire, depending on the length and the wiring state of the high-voltage lead wire, the high-voltage lead wire serves as an antenna when a noise current occurs due to, for example, an abnormality in the dust collecting element. However, there is a problem in that the control circuit of this machine is out of order by operating and generating radiation noise.

The present invention has been made in view of the above circumstances,
An electric dust collector type air cleaner that does not require a high voltage lead wire for electrical connection between the dust collection element and the high voltage generator, can connect the above both more easily, and does not cause radiation noise. The purpose is to do.

<Means for Solving the Problems> In order to solve the above problems, the invention according to claim 1 applies a dust collecting element for removing dust in the air, and a high voltage for collecting dust to the dust collecting element. In the electric dust collector type air cleaner provided with the high voltage generating device, the dust collecting element and the high voltage generating device are arranged adjacent to each other in the casing, and the dust collecting element is provided with a terminal plate. The high-voltage generating device includes a main body which has a built-in high-voltage generating circuit and is detachably attached to a predetermined portion of a casing, and the main body protruding from the main body and being attached to the predetermined portion of the casing. A contactor for electrically directly connecting the dust collection element and the high voltage generator by being elastically pressed against the terminal plate is configured as an integral unit. is there.

According to a second aspect of the present invention, in the first aspect, the main body of the high voltage generator is attached by being detachably engaged with an engaging portion provided in a predetermined portion of the casing. It is characterized by.

The invention according to claim 3 is the invention according to claim 1 or 2, wherein the predetermined portion of the casing for mounting the main body is interposed between the dust collecting element and the high voltage generator, and the contactor is provided. The partition plate has a through hole that is inserted into the dust collecting element side, and a guide rail that slidably supports the dust collecting element along a predetermined insertion / removal direction is formed on the partition plate. To do.

In the invention according to claim 4, in claim 3, the contact is made of a leaf spring, and the inserting / removing direction intersects a direction in which the contact is pressed.
It is characterized in that a projection amount restricting rib is formed to restrict the projection amount of the contactor from the partition plate toward the dust collecting element side by engaging the contactor in a state where the dust collecting element is separated from the casing. It is a thing.

<Operation> According to the invention of claim 1, the high-voltage generator is configured as an integrally detachable unit including the contactor directly connected to the terminal plate. Therefore, this unit is provided in a predetermined portion of the casing. Only by mounting, the electrical connection can be achieved at the same time, and the disconnection of the electrical connection can be achieved at the same time by simply removing the unit from a predetermined portion of the casing. In this way, mechanical attachment / detachment and electrical contact / separation can be achieved all at once with a single work operation.

According to the invention of claim 2, the main body of the high-voltage generating device is attached and detached by engagement, so that it can be easily attached and detached.

According to the invention of claim 3, the dust collecting element can be easily inserted and removed by the guide rail. Further, since both the high voltage generator and the dust collecting element are positioned on the partition plate, the positioning accuracy between them is improved, and the positioning accuracy between the contactor and the terminal plate is also increased. It is possible to make sure contact with the plate.

According to the invention of claim 4, when the dust collecting element is inserted along the guide rail, the contactor protruding in the direction intersecting with the inserting / removing direction is pushed in the anti-projecting direction by the end face plate of the dust collecting element. Then, the reaction force presses the end plate.

By the way, since the contact element that protrudes in the insertion / removal direction of the dust collection element consists of a leaf spring, the dimensional accuracy is generally not very precise. Therefore, if there is no protruding amount regulating rib, there is a possibility that the protruding amount may interfere with the insertion and removal of the dust collecting element. On the other hand, in the present invention, since the protrusion amount of the contactor can be regulated by the protrusion amount regulating rib, the dust collecting element can be smoothly inserted and removed.

<Example> Below, the electrostatic precipitating type air cleaner of this invention is demonstrated, referring drawings which show an example.

As shown in FIGS. 1 (a) and 1 (b), the electrostatic precipitating air cleaner of this embodiment has a casing 1 that constitutes an outer casing of the body.
And is disposed above the inside of the casing 1 and, as indicated by a white arrow in FIG. 1B, sucks air from the air suction port 10 on the lower surface of the casing 1 and cleans the air to the front surface of the casing 1. A fan 2 that discharges into the room from an upper air outlet 11 and a motor 3 for rotating the fan 2 are provided. In addition, on the air flow path from the air suction port 10 to the air outlet 11, the pre-filter 4,
The ionizer 5 and the dust collecting element 6 are provided in this order along the air circulation path.

The pre-filter 4 removes relatively large dust contained in the air sucked from the air suction port 10.

The ionization device 5 includes ionization electrodes 51, 51 made of a metal wire stretched over an air flow path, and the ionization electrode 5
1, 51 and counter electrode plates 52, 52 arranged in parallel. In the ionization device 5, when air is passed while generating corona discharge between the ionization electrodes 51, 51 and the counter electrode plates 52, 52, fine dust in the air that cannot be removed by the prefilter 4 To be positively charged.

The dust collection element 6 includes a frame body 61 made of an insulating material, a strip-shaped anode 62 in which a metal strip is embedded in a synthetic resin, and a dust collection member 63 obtained by bending a metal strip in a wavy shape. The anode 62 and the dust collecting member 63 are arranged in a double spiral shape in the frame 61. The anode 62 is electrically connected to the high voltage side of the adjacent high voltage generator 7, and the dust collecting member 63 is electrically connected to the ground side of the high voltage generator 7. Then, when the high voltage generator 7 is operated and a high voltage is applied to the anode 62, fine dust that has passed through the ionizer 5 and is positively charged is collected by the dust collecting member 63, and air is generated. Be cleaned.

The dust collecting element 6 is attached to the casing 1 so that the dust collecting element 6 can be pulled out from the fixed position shown in FIGS. 1A and 1B to the entire lower surface of the casing 1 as shown by a black arrow in FIG. It is provided slidably.

FIG. 2 is a perspective view of a main part of the electric dust collecting type air cleaner,
Also, with reference to FIG. 3 which is an enlarged cross-sectional view of the above-mentioned main part, guide rails 12a, 12a for slidably supporting the edge portion of the frame 61 of the dust collecting element 6 are provided inside the casing 1. A partition plate 12 is provided. The high voltage generator 7 is attached to the surface of the partition plate 12 opposite to the side where the guide rails 12a, 12a are formed.

The high voltage generator 7 is configured such that the engaging claws 12c, 12c projecting from the partition plate 12 are inserted into and engaged with the through holes 71b, 71b of the small tongue portions 71a, 71a projecting above and below the main body 71. Is fixed to the partition plate 12. Note that reference numerals 12b, 12b ... In the drawings indicate positioning protrusions that position the high voltage generator 7 when the high voltage generator 7 is fixed to the partition plate 12.

The high-voltage-side and ground-side contacts 72, 73 are each formed by bending a metal strip. The both contacts 72, 73, when the main body 71 is fixed to the partition plate 12, the distal end of each contact hole 12d, 12 provided in the partition plate 12.
It is projected between the guide rails 12a, 12a through d.

Then, the edge portion of the frame body 61 of the dust collecting element 6 is inserted between the guide rails 12a, 12a, and the dust collecting element 6
When loaded in a predetermined position of the casing 1, as shown in FIG. 3, the tips of both contacts 72, 73 are connected to the terminal plate 62a, which is provided on the side surface of the frame 61 of the dust collecting element 6. 63a is elastically pressed into contact with the dust collecting element 6 and the high voltage generator 7
Electrically directly connected to. That is, the contacts 72, 73 project in a direction intersecting the insertion / removal direction X (see FIG. 2) of the dust collecting element 6 and are pressed against each other along this direction.

The positions of the tips of the contacts 72, 73 when the dust collecting element 6 is not loaded in the casing 1 are as shown by the two-dot chain line in FIG. It is set slightly ahead of the position of 63a. Therefore, the both contacts 72, 73, due to the elastic force,
The terminal plates 62a and 63a are securely pressed against each other.

Further, the tips of both the contacts 72, 73 are processed into a semicircular shape as shown in FIG. 2 so as not to interfere with the sliding of the dust collecting element 6.

The partition plate 12 has a protruding amount restricting rib for restricting the tips of the contacts 72, 73 from protruding more than necessary when the dust collecting element 6 is not loaded in the casing 1.
12e, 12e are provided.

According to the above embodiment, the high voltage generator 7 is connected to the terminal board 62.
Since the contactor 72 ('73) directly connected to the a (63a) is integrally configured as a detachable unit, the unit can be attached to a predetermined portion of the casing 1 to simultaneously achieve electrical connection. This can be achieved, and the disconnection of the electrical connection can be achieved at the same time simply by removing the unit from a predetermined portion of the casing 1. In this way, mechanical attachment / detachment and electrical contact / separation can be achieved all at once with a single work operation.

Further, since the main body 71 of the high voltage generator 7 is attached and detached by engagement, it can be easily attached and detached. On the other hand, the guide rail 12a allows the dust collecting element 6 to be easily inserted and removed.

Furthermore, since both the high voltage generator 7 and the dust collecting element 6 are positioned on the partition plate 12, the positioning accuracy between them is increased, and the contact 72 (73) and the terminal plate
The positioning accuracy of 62a (63a) is also increased, resulting in contact 72
(73) can be surely brought into contact with the terminal board 62a (63a).

In addition, the contactor 72 (73) protruding in the insertion / removal direction of the dust collecting element 6 is made of a leaf spring, and its dimensional accuracy is generally not so strict. For this reason, if the protrusion amount restricting rib 12e is not provided, there is a possibility that the contact 72 (73) may protrude to the extent that it interferes with the insertion and removal of the dust collecting element 6. On the other hand, in this embodiment, since the protrusion amount of the contact 72 (73) is regulated by the protrusion amount regulating rib 12e, the dust collecting element 6 can be smoothly inserted and removed.

The electrostatic precipitator air purifier of the present invention is not limited to the above embodiment.

For example, the contacts 72, 73 of the above-described embodiment and the modified examples are both made of a metal strip material, generate an elastic force by their shape, and are pressed against the terminal plates 62a, 63a. A contactor made of a metal rod or the like and slidably attached to the main body of the high voltage generator in the axial direction can be pressed against the terminal plate by an elastic member such as a coil spring.

In the above embodiment, the dust collecting element 6 is provided with the terminal plates 62a, 63a.
Is provided and the high voltage generator 7 is provided with the contacts 72, 73, but conversely, the dust collecting element may be provided with a contact and the high voltage generator may be provided with a terminal plate.

In addition, various design changes can be made without changing the gist of the present invention.

<Effect of the Invention> According to the invention of claim 1, the high-voltage generator is configured as an integrally detachable unit including the contactor directly connected to the terminal board. Just by mounting on the section, electrical connection can be achieved at the same time, and productivity can be improved.

According to the invention of claim 2, the main body of the high-voltage generating device is attached and detached by engagement, so that it can be easily attached and detached.

According to the invention of claim 3, since both the high voltage generator and the dust collecting element are positioned on the partition plate,
The positioning accuracy between the two becomes high and the positioning accuracy of the contactor and the terminal plate also becomes high. As a result, the contactor can be surely brought into contact with the terminal plate.

According to the invention of claim 4, the contact element protruding in the inserting / removing direction of the dust collecting element is not so strict in dimensional accuracy of the leaf spring, but the contact amount of the contact element is reduced by the protruding amount regulating rib. Since it is possible to regulate the amount of protrusion to, it is possible to smoothly insert and remove the dust collecting element.

[Brief description of drawings]

1 (a) and 1 (b) are schematic views showing the internal structure of an embodiment of the electrostatic precipitating air cleaner of the present invention, and FIG. 2 shows the essential parts of the electrostatic precipitating air cleaner. FIG. 3 is an exploded perspective view, and FIG. 3 is an enlarged cross-sectional view of the main part. 6 ... Dust collecting element, 7 ... High voltage generator, 62a, 63a ... Terminal plate, 72, 73 ... Contact.

Claims (4)

[Claims] 1. Electricity comprising a dust collecting element (6) for removing dust in the air, and a high voltage generator (7) for applying a high voltage for dust collecting to the dust collecting element (6). In the dust collecting type air cleaner, the dust collecting element (6) and the high voltage generator (7) are arranged adjacent to each other in the casing (1), and the dust collecting element (6) has a terminal plate ( 62a, 63a) are provided, and the high-voltage generator (7) includes a main body (71) which has a built-in high-voltage generation circuit and is detachably attached to a predetermined portion (12) of the casing (1), The dust collecting element is projected from the main body (71) and elastically pressed against the terminal plates (62a, 63a) in a state where the main body (71) is attached to the predetermined portion (12) of the casing (1). Contactor (72,7) for directly electrically connecting (6) and the high voltage generator (7).
An electric dust collecting type air purifier characterized by comprising 3) and 1 as an integrated unit. 2. The electrostatic precipitating air cleaner according to claim 1, wherein the main body (71) of the high voltage generator (7) is provided on a predetermined portion (12) of the casing (1). An electric dust collecting type air cleaner, which is attached by being detachably engaged with the portion (12c). 3. The electric dust collecting type air cleaner according to claim 1 or 2, wherein the predetermined portion of the casing (1) for mounting the main body (71) includes a dust collecting element (6) and a high voltage generator. The partition plate (12) is interposed between the device (7) and has a through hole (12d) through which the contact (72, 73) is inserted into the dust collecting element (6) side. An electric dust collector type air cleaner characterized in that a guide rail (12a) is formed at 12) to slidably support the dust collecting element (6) along a predetermined insertion / removal direction (X). . 4. The electrostatic precipitating air cleaner according to claim 3, wherein the contactor (72, 73) comprises a leaf spring, and the insertion / removal direction (X) is the contactor (72, 73). Crosses the direction in which the pressure contact is made, and by engaging the contact element (72, 73) in the partition plate (12) with the dust collecting element (6) separated from the casing (1), Electrostatic precipitating air characterized in that a protrusion amount regulating rib (12e) for regulating the protrusion amount of the contactor (72, 73) from the partition plate (12) to the dust collecting element (6) side is formed. Cleaner.