JPH0696127B2 - Air purifier - Google Patents

Description

The present invention relates to a ceiling-embedded air cleaning device.

<Prior Art> Conventionally, as an air purifying apparatus, an electric dust collecting element that introduces indoor air into an air passage behind the ceiling through an air intake opening facing the interior from the ceiling and is provided in the middle of the air passage. Provides a ceiling-embedded type in which dust particles contained in the introduced air are collected and then blown out into the room.

When installing such an air purifying device, it is necessary to form an air inlet, an air outlet, and an opening for inspecting and attaching / detaching the electric dust collecting element on the ceiling surface.

<Problems to be Solved by the Invention> By the way, the opening is provided directly below the electrostatic precipitator element so as to be attachable / detachable by moving the precipitator element in the vertical direction.

Therefore, the longer the electrostatic precipitator element, the larger the size of the opening must be, and even if the opening is closed with the decorative panel, the appearance of the ceiling surface is impaired. .

Further, as the electrostatic precipitator element becomes longer, it becomes difficult to attach and detach it.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an air cleaning device in which the electrostatic precipitating element can be easily attached and detached through a small opening.

<Means for Solving the Problems> As an air cleaning device of the present invention for achieving the above object, a plurality of electrostatic precipitating elements that are separably connected to each other are provided along a direction intersecting an air passage. , These multiple electrostatic precipitator elements are
It is supported so that it can be pulled out in the direction that intersects with the air passage, and the electric contacts of each electrostatic precipitator element and the fixed contact on the power supply side are brought into contact with each other while permitting the extraction of the electrostatic precipitator element. There is something.

As the guide rail, a portion close to the fixed contact may be cut out so as to secure an insulation distance from each contact.

<Operation> According to the air purifying apparatus having the above-described configuration, the electric dust collecting elements are sequentially pulled out in the direction intersecting the air passage along the guide rail, and the electric dust collecting elements are disconnected from each other. The electrostatic precipitating elements can be removed one by one to the indoor side through the openings formed in the ceiling surface. At this time, the electric contactor of each electrostatic precipitating element and the fixed contact on the power supply side are in contact with each other while allowing the electric precipitating element to be drawn out, so that each electric precipitating element can be pulled out without any trouble. You can

Further, the once removed electrostatic precipitating element can be mounted at a predetermined position by inserting the electrostatic precipitating element in a direction intersecting with the air passage along the guide rail while sequentially connecting the electrostatic precipitating element. In the mounted state, the electric contactor of each electrostatic precipitating element and the fixed contact on the power source side can be brought into contact again with the electric precipitating element being allowed to be pulled out.

Therefore, the opening on the ceiling surface for attaching and detaching the electrostatic precipitating element can be made small so that at least one electrostatic precipitating element can be inserted.

In particular, when the portion of the guide rail that is close to the fixed contactor is notched, the insulation distance between the guide rail and each contactor can be secured.

<Examples> Detailed description will be given below with reference to the accompanying drawings showing examples.

FIG. 1 is a perspective view showing a state in which the air cleaning device of the present invention is attached to a ceiling (8).

In the figure, the air purifier (A) includes a long dust collecting unit (1) connected to a suction duct (3) and a long fanch chamber (2) connected to a blowout duct (4). The dust collecting unit (1) and the fan chamber (2) are in communication with each other through the connection duct (5). The air cleaning device (A) includes an air suction port (3a) of the suction duct (3) and an air outlet port (4) of the blowing duct (4).
a) is provided on the back side of the ceiling (8) in a state of being exposed to the room through the opening of the ceiling (8).

The dust collecting unit (1) and the fan chamber (2) have an air passage (B) extending from the suction duct (3) through the connecting duct (5) to the outlet duct (4) on the long side thereof.
They are provided in a state of being oriented in a direction orthogonal to the above, and are respectively hung from beams (not shown) via hanging bolts (7).

Inside the fan chamber (2), along the longitudinal direction of the fan chamber, a plurality of air chambers for introducing air from the air intake port (3a) and forcing the air out of the air outlet port (4a) into the room are provided. A blower fan (not shown) is provided.

In the casing (1a) of the dust collecting unit (1), a plurality of electric dust collecting elements (9) are arranged along the longitudinal direction thereof.
Is housed. This electrostatic precipitator element (9)
They are connected in series so that they can be separated from each other. Each electrostatic precipitator element (9) has an ionization part (9a) for charging positive dust to dust particles in the air, and a dust collector (9b) for collecting and depositing the charged dust particles (second). See figure). In addition, each electrostatic precipitator element (9),
They are connected via a connecting tool (13) having an engaging pin (13a) and an engaging hole (13b) that is inserted into the engaging pin (13a) so that it can be pulled out. Further, as shown in FIG. 2, a pair of lower guide rails (10) (11) that support a plurality of electrostatic precipitating elements (9) so as to be able to be pulled out in the longitudinal direction are provided at the bottom of the casing (1a). Is installed in the upper part of the casing (1a).
An upper guide rail (12) for supporting the electrostatic precipitator element (9) is provided together with 0 (11).

Further, a detachable port (1b) for the electrostatic dust collecting element (9) is formed at the end of the casing (1a) of the dust collecting unit (1), and the detachable port (1b) is removable. It is closed by the side plate (1c). An opening (8a) is formed in the ceiling (8) near the attachment / detachment opening (1b) for removing the electrostatic precipitator element (9) indoors or inserting it into the ceiling. ing. The opening (8a) is formed to have a size such that one electric dust collecting element (9) can be inserted through the opening (8a) and is normally closed by a decorative panel (15) so as to be opened.

The pair of lower guide rails (10) (11) are arranged symmetrically, and are channels that support the electrostatic precipitator element (9) at a predetermined height position from the bottom (1b) of the casing (1a). It is constituted by leg portions (10a) (11a) and upright pieces (10b) (11b) that guide the insertion of the electrostatic precipitator element (9) into the casing (1a) (Fig. 2 and (See FIG. 4). In addition, the upper guide rail (12) has the rising pieces (10b) (11b) of the lower guide rails (10) (11).
At the same time, a hanging piece (12a) for guiding the insertion of the electrostatic precipitator element (9) into the casing (1a) is provided. When inserting the electrostatic precipitator element (9) into the casing (1a) at the end of the lower guide rails (10) and (11), attach it to the legs of the lower guide rails (10) and (11). (Ten
a) A slanting piece (10
d) (11d) is formed (see FIG. 2).

In addition, the space between the lower guide rails (10) and (11) is the third
As shown in FIG. 5 to FIG. 5, a fixed contactor (1) for applying a high voltage to each electrostatic precipitator element (9).
8) (19) are provided. This fixed contact (18) (1
9) is provided for each electrostatic precipitating element (9) in pairs, and an electric contactor (16) for the ionization part (9a) protruding from the lower surface of each electrostatic precipitating element (9). , Is in contact with the electric contact (17) for the dust collecting part (9b).

The pair of fixed contacts (18) (19) are bent into a predetermined shape so as to elastically make contact with the contacts (16) (17) on the side of the electrostatic precipitator (9). The leaf springs are used, and each is attached to a tray-shaped insulator (20). In addition, each fixed contact (18) (19)
The contactor (16) of the electrostatic precipitating element (9) so that the electrostatic precipitating element (9) can be moved in the longitudinal direction.
The contact surface with respect to (17) is arranged so as to be parallel to the longitudinal direction. Reference numeral (21) in the drawing denotes a high-voltage lead wire connected to the fixed contacts (18) (19).

Further, as shown in FIG. 5, the lower guide rail (11)
In the part of (10) close to the fixed contact (18),
A notch (C) is formed to secure an insulation distance from each contact (16) (17) (18) (19). The cutout length of the cutout portion (C) is as follows:
Is set within a range that does not hinder the movement in the longitudinal direction. In addition, the notch (C) of the lower guide rails (10) (11)
The inclined pieces (10e) (11e) extending obliquely downward are provided so that the electrostatic precipitating element (9) can smoothly pass through the cutout portion (C).

According to the air cleaning apparatus (A) having the above configuration, the ceiling (8)
With the opening (8a) and the attachment / detachment port (1b) of the casing (1a) of the dust collection unit (1) open, the electric dust collection element (9) in the direction intersecting the air passage (B). What,
That is, the electrostatic precipitating elements (9) can be taken out one by one through the opening (8a) to the inside of the room by pulling them out in the longitudinal direction and sequentially releasing the connected state. Further, the electric dust collecting element (9) once taken out can be mounted again in the casing (1a) of the dust collecting unit (1) by an operation reverse to the above, and in this mounted state, the electric dust collecting element (9) is The fixed contact (18) on the power supply side is different from the contact (16) (17) of (9).
(19) can be contacted.

As described above, in the air purifying device (A), the electric dust collecting element can be divided and taken out into the room. Therefore, the opening (8a) provided in the ceiling (8) is connected to the electric dust collecting element ( It is not necessary to form it over the entire length of 9).
Further, the electrostatic precipitator element (9) can be easily attached and detached.

The air purifying device of the present invention is not limited to the above-mentioned embodiment, and for example, the contactors (16) (17) and the fixed contactors (18) (19) of the electrostatic precipitator element (9) can be used. Various design changes can be made, such as providing the dust collecting unit (1) on the inner upper side of the casing (1a).

<Effects of the Invention> As described above, according to the air cleaning apparatus of the present invention, the long electrostatic precipitating element can be attached / detached in the state of being divided into individual parts. Since the size of the opening of the ceiling can be reduced, the appearance of the ceiling is not impaired, and the electric dust collecting element can be easily attached and detached.

In particular, when the portion of the guide rail that is close to the fixed contact is cut out, the insulation distance between the guide rail and each contact can be secured, so spark discharge between the contact and the rail can be secured. It is possible to prevent noise from being generated.

[Brief description of drawings]

FIG. 1 is a perspective view showing an air cleaning device of the present invention, FIG. 2 is an enlarged perspective view of an essential part, FIG. 3 is a perspective view showing a fixed contact, FIG. 4 is a sectional view of an essential part, and FIG. Partially missing side view. (1) …… Dust collection unit, (3a) …… Air inlet, (4a) …… Air outlet, (8) …… Ceiling, (8a) …… Opening, (9) …… Electrostatic dust collection Element, (10) (11) …… Lower guide rail, (12) …… Upper guide rail, (16) (17) …… Contact, (18) (19) …… Fixed contact, (A)… … Air purifier, (B) …… Air passage, (C) …… Notch

Claims (2)

[Claims] 1. Indoor air is introduced into an air passage behind the ceiling through an air suction port facing the interior from the ceiling, and the introduced air is removed by an electrostatic precipitating element provided in the middle of the air passage. In a ceiling-embedded air purifier that blows out into a room after cleaning, a plurality of electric dust collecting elements that are separably connected to each other are provided along a direction intersecting with the air passage. The element is supported by a guide rail so that it can be pulled out in the direction that intersects with the air passage, and the electric contact of each electrostatic precipitator element and the fixed contact on the power supply side can be pulled out. An air purifier characterized by being in contact with each other in an allowed state. 2. The air cleaning apparatus according to claim 1, wherein a portion of the guide rail which is close to the fixed contactor is notched so as to secure an insulation distance from each contactor.