JPH03267159A - Air purifier - Google Patents

Abstract

PURPOSE:To facilitate attachment/detachment of a dust collecting element by housing a frame body as vertically movable in a housing and providing a stopper for frame body and energizing means for stopper in the housing. CONSTITUTION:The dust collecting element 3 is composed of a frame member 31, a laminating layer body 32 housed in the frame member 31, contactor 33 for anode and contactor 34 for ionized wire protruded from the frame member 31 and earth switch 35. The earth switch 35 is linked with movement for taking off the element 3 from an element housing part 28 to short-circuit the contactor 33 for anode and the frame member 31 and charge remaining into the element 3 itself is quickly eliminated. Then, the stopper 4 for frame body is shifted to saving position against a twist spring 5 and the frame body 2 is shifted to the lower position under the condition of permitting taking-out the frame body 2. By this method, the maintenance is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an air cleaner that is installed on a ceiling and cleans indoor air.

<Prior art> In recent years, there has been a demand for air cleanliness, such as removing cigarette smoke, in offices, hospitals, various stores, general households, etc., and air purifiers that can ensure this cleanliness have been developed. mosquito,
It is becoming widespread. In order to secure indoor space, many air purifiers are of the so-called ceiling arrangement type, such as being suspended from the ceiling or buried in the ceiling.

Furthermore, as various air purifiers are being provided, attempts are being made to standardize dust collection elements, and dust collection elements are becoming smaller. Therefore, it is inevitable that a plurality of dust collection elements will be attached to -1 air cleaners.

If multiple dust collection elements are installed in the above ceiling-mounted air purifier, for maintenance such as cleaning or replacing the dust collection elements, attach or remove each dust collection element to a high location near the ceiling. There was a problem in that the attachment and detachment work had to be done by hand, and it was difficult and time consuming.

<Invention or Problem to be Solved> In view of the above-mentioned problems, the present invention provides an air cleaner in which the dust collection element can be easily attached and detached even though it is installed at a high place such as the ceiling. The purpose is to

<Means for Solving the Problems> In order to achieve the above object, an air purifier according to the present invention includes a housing attached to a ceiling, and an upper part that accommodates a plurality of electrostatic precipitator elements and is housed in the housing. a frame body that is vertically movable between the position and a lower position where the frame body escapes downward from the housing; and a protrusion position that is attached to the housing and holds the frame body in the upper position, and a retracted position that allows the frame body to be taken out. The present invention is characterized by comprising a stopper that is freely movable, and biasing means that elastically biases the stopper to the protruding position.

According to the air purifier having the above configuration, the frame stopper is moved to the retracted position against the biasing means, and the vertically movable frame is moved while allowing the frame to be taken out. By moving the dust collecting element from the upper position to the lower position, the dust collecting element can be attached and detached from a lower position during maintenance such as cleaning and replacement of the dust collecting element, making the attachment and detachment work easier.

Moreover, when the frame body is moved to the upper position, it is automatically moved to the protruding position by being urged by the frame stopper or the urging means, and the frame body is automatically moved to the upper position by the stopper. - The layer can be easily attached and removed.

<Example> Embodiments will be described in detail below with reference to the accompanying drawings showing embodiments.

FIG. 3 is a schematic diagram showing an air conditioning system including an air purifier as an embodiment of the present invention. In an air conditioning system B that uses a duct as a duct, an air cleaner A is installed near an inlet 93 formed in a ceiling surface 92. 94 is an air outlet. The air purifier A performs air purification using air blown by the air conditioner 91.

This air purifier A consists of a housing 1 suspended from an upper plate 95 by a stay 96, an upper position accommodated in the housing 1 (see Figure 1), and a lower position pulled out downward (see Figure 2). ), the frame body 2 is movable up and down;
As a plurality of electrostatic precipitator elements 3 that are detachably supported by the frame 2, a frame stopper 4 that fixes the frame 2 at an upper position, and a biasing means that rotationally biases the frame stopper 4. The torsion spring 5 (see FIG. 5) is provided.

With reference to FIGS. 3 and 4, the housing 1 includes a top plate 1
1 and a guide member 12 which is made of a pair of channel materials and guides the vertical movement of the frame 2, and is arranged in the attic space 90 above the suction port 93.

The frame body 2 includes a top plate 21, a bottom plate 22, and a pair of side members 23.2.
4, a pair of rail members 25, 26, and a partition part 27
A pair of element storage sections 28 are formed with this partition section 27 in between. The electrostatic precipitator element 3 is stored in and removed from the element storage portion 28 from the front. The above pair of rail members 25
．． 26 are arranged above and below the front surface of the frame body 2, and from the side,
A pre-filter 6 is introduced. This pre-filter 6 is
It is for removing relatively large dust, and a filter member 62 is supported by a frame member 61.

The frame stopper 4 is clamped between a pair of mounting members 42 and 43, which are fixed to the locking member 9 with screws in the Ω-shaped cross-sectional shape of the lower part of the inside part 1a of the housing 1. It is supported by screws 44. The frame stopper 4 is
A protruding position (see FIG. 1) that protrudes into the take-out path of the frame 2 and holds the frame 2 in an upper position with the screw 44 serving as a support shaft as the center.

(see FIGS. 6 and 7) and a retreat position (see FIGS. 2, 8, and 9) where the frame body 2 is withdrawn from the removal path.

The frame stopper 4 allows the frame 2 to be taken out in the retracted position.

The torsion spring 5 is loosely fitted onto the screw 44 and elastically urges the frame stopper 4 to the above-mentioned protruding position (clockwise in FIG. 5).

As shown in FIGS. 2 and 8, the locking member 9 engages with the upper end 2a of the frame 2 in the lower position to hold the frame 2 in the lower position.

The dust collection element 3 consists of a so-called scroll-type electric dust collection element, which positively charges the dirt particles in the air, and negatively charges the dust collection electrode plate of the electric dust collection element, thereby creating an attractive force between the two. This provides high dust collection ability.

The dust collection element 3 includes a frame member 31 , a laminate 32 housed in the frame member 31 , an anode contact 33 and an ionization wire contact 34 protruding from the frame member 31 , and an earth switch 35 .

The laminate 32 includes an elongated anode 32a made of an electrode plate made of a flat band-shaped metal foil and molded with insulating synthetic resin around the electrode plate, and a elongated anode 32a made of a metal foil provided with a large number of wavy protrusions at predetermined intervals in the longitudinal direction. It is formed by stacking the dust collection poles 32b in contact with each other and then winding them into a flat elliptical coil shape, and there are many elongated gaps separated between the two poles 32a and 32b.
It passes through from front to back.

At the end of the outer winding of this laminate 32, the anode 32a and the dust collecting electrode 32b are separated, and the anode 32a is separated from the dust collecting electrode 32b.
is connected to the anode contactor 33, and the end of the dust collecting electrode 32b is fixed in contact with the frame member 31.

The ionization wire contact 34 is connected to an ionization wire (not shown) that applies an ion shower to positively charge dust.

The earth switch 35 connects the electrostatic precipitator element 3 to the frame 2.
In conjunction with the operation of removing the element from the element storage section 28,
The anode contactor 33 and the frame member 31 are short-circuited so that the charge remaining in the electrostatic precipitator element 3 itself is quickly dissipated.

The electrostatic precipitator element 3 is stored in the element storage part 28 of the frame 2, and
Power terminals are provided which are connected to the anode contact 33 and the ionization wire contact 34, respectively.

In addition, on the front surface of the frame body 2, element stoppers 7 are provided on the side members 23 and the partition member 27, respectively, to prevent the electrostatic precipitator element 3 from falling off from the element storage portion 28.

This element stopper 7 has substantially the same structure as the frame stopper 4, so a description thereof will be omitted.

According to this embodiment, the frame stopper 4 is moved to the retracted position against the torsion spring 5 to allow the frame 2 to be taken out, and the frame 2 is moved to the lower position (see FIG. 2). By moving the dust collecting element 3 to a low position, you can perform maintenance such as cleaning or replacing the dust collecting element 3.
This makes the attachment and detachment work easier, which in turn makes maintenance of the air cleaner A easier.

Furthermore, as the frame body 2 is moved to the upper position, the frame body stopper 4, which is biased by the torsion spring 5, automatically moves to the protruding position. , the frame body 2 can be held in the upper position, making it easier to attach and detach the layer.

In the above embodiments, the frame stopper 4 is rotatable and a torsion spring is used as the urging means, or the frame stopper 5 is linearly movable and a compression coil spring is used as the urging means. I can bring it.

Furthermore, the present invention is not limited to the above-mentioned embodiments, and may include using other structures such as a so-called electrostatic filter type or a honeycomb type as the dust collection element.
Various design changes can be made without changing the gist of the invention.

<Effects of the Invention> As described above, according to the present invention, the frame housing a plurality of dust collection elements is vertically movable between the upper position and the lower position. During maintenance, by lowering the frame to the lower position, each dust collection element can be installed and removed from a low position.
The attachment/detachment work is facilitated, and in addition, as the frame is moved to the upper position, the frame stopper, which is urged by the urging means, is automatically moved to the protruding position, and the stopper automatically moves the frame to the upper position. The frame body can be held in the upper position, making it easier to attach and detach the layer, which has the unique effect of making the maintenance of the air cleaner easier.

[Brief explanation of drawings]

1 and 2 are schematic diagrams showing the operation of the frame of an air purifier as an embodiment of the present invention, FIG. 3 is a schematic diagram showing an air conditioning system in which the air purifier is installed, and FIG. The figure is an exploded perspective view of the air cleaner, Figure 5 is an exploded perspective view of the frame stopper, Figures 6 and 7.
The figure shows a partially sectional side view and a bottom view showing the frame stopper fixing the frame, respectively. Figures 8 and 9 show the frame stopper allowing the frame to be removed. They are a partially sectional side view and a bottom view, respectively. 5...Ring spring (biasing means) A...Air purifier. (1 other person) 1...Housing, 2...Frame, 3...Dust collection element, 4...Frame stopper, 1
...Housing 2...Frame 3...Dust collecting element 4...Frame stopper A...Air cleaner 1...Housing A...Air cleaner 4...Frame Stopper 5 - Torsion spring (biasing means) 1 Housing 2 Frame 4 Stopper 5 for frame - Torsion spring (biasing means) ]

Claims (1)

[Claims] 1. Between the housing (1) attached to the ceiling, the upper position where the plurality of dust collection elements (3) are housed and housed in the housing (1), and the lower position where the housing (1) escapes downward. between a frame body (2) that is vertically movable and a protruding position that is attached to the housing (1) and holds the frame body (2) in an upward position and a retracted position that allows the frame body (2) to be taken out. a movable frame stopper (4);
An air cleaner characterized by comprising a biasing means (5) for elastically biasing the frame stopper (4) to a protruding position.