JPH04293561A - Hanging on ceiling-type air cleaner - Google Patents

Abstract

PURPOSE:To hang an electric dust collecting element temporarily and then slide it to take it out of a casing by installing an oil pan supporting part and a pair of engagement parts unitedly in the electric dust collecting element and installing a tentative reception part and insertion route in the periphery part of an element gateway. CONSTITUTION:An oil pan supporting part 24 to support an oil pan 25 in the way that the oil pan 25 can be detached freely and a pair of engagement parts 26, 27 extruded from both sides of the upper parts of the element 16 are installed unitedly in the electric dust collecting element 16. A tentative reception part 28 to be engaged with the engagement parts 26, 27 and expose a casing 12 downward is installed in the periphery of the element gateway. The element 16 is tentatively hung by engagement of the parts 26, 27 with the tentative reception part 28 and then slid horizontally to release the engagement with the tentative reception part 28 and take it out of the casing 12.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling-suspended air cleaner, and more particularly to a ceiling-suspended air cleaner capable of collecting oil droplets from an electrostatic precipitator element.

0002

BACKGROUND OF THE INVENTION In general, the structure shown in FIG. 8 is widely known as a ceiling-suspended air cleaner (for example, Japanese Patent Laid-Open No. 62-286564). In that structure, a casing 10 suspended from a ceiling 100
1, and this casing 101 is provided with an indoor 103 by the suction force of a fan 102 disposed inside the casing 101.
A suction grill 104 that sucks in air, and an outlet grill 105 that circulates the sucked air back into the room 103 are provided. An electrostatic precipitator element 106 for removing dust from the air sucked from the suction grille 104 is disposed upstream of the fan 102 . The element is inserted into and removed from the inside of the casing 101 through an element entrance/exit 107 formed in the element. The element entrance/exit 107 is configured to be opened/closed by an electrode receiving panel 108 that covers the entire lower surface of the casing 101. One longitudinal end of this electrode panel 108 is pivotally supported on the lower surface of the casing 101, and the electrostatic precipitator element 106 is seated on the upper surface of the other end and is rotated to open and close. The dust collection element 106 is configured to be attachable to and detachable from the casing 101.

However, if the above-mentioned device is installed in a restaurant such as a yakiniku restaurant, eel restaurant, or Chinese restaurant, or in a place where oil mist is generated, such as a factory, the electricity will be lost during long-term use. Dust collection part 106 of dust collection element 106
There is a problem in that the oil collected in a collects, falls, and leaks to the outside. Therefore, in Japanese Patent Application No. 3-36008, the applicant arranged an oil pan 110 directly below the electrostatic precipitator element 106, as shown in FIG. A structure is proposed to collect oil dripping from the dust collecting section 106a.

When embodying a structure in which the oil pan 110 is disposed directly below the electrostatic precipitator element 106 as in the structure of the above-mentioned Japanese Patent Application No. 3-36008, the electrostatic precipitator element attachment/detachment structure explained in FIG. If the structure of FIG. 9 is followed as it is, the rotation radius of the electrode receiving panel 108 is large, so when the electrode receiving panel 108 is opened, the oil pan 11
There is a risk that the 0 will tilt significantly and the collected oil will spill out.

The present invention has been made in view of the above-mentioned problems, and provides a ceiling-suspended structure that allows easy removal of the electrostatic precipitator element or oil pan even when the oil pan is placed below the electrostatic precipitator element. The purpose is to provide a shaped air purifier.

[0006]

[Means for Solving the Problems] In order to solve the above problems, the ceiling-suspended air cleaner of the present invention includes an electrostatic precipitator element equipped with a dust collecting section that removes dust from the sucked air, and an electric precipitator element. An oil pan that collects oil droplets from the dust collection element,
A casing for accommodating an oil pan and the electrostatic precipitator element, and an element inlet/outlet formed on the lower surface of the casing, and the oil pan is detachably held in the electrostatic precipitator element below the dust collection section. An oil pan holding member and a pair of engaging members protruding from both sides of the upper part of the electrostatic precipitator element are integrally provided, and the engaging members are engaged with a portion inside the casing near the element entrance/exit. As a result, the lower side of the electrostatic precipitator element is exposed below the casing, and a temporary receiving part temporarily receives the electrostatic precipitator element, and by horizontally sliding the electrostatic precipitator element, the temporary receiving part and the above-mentioned engaging part are connected. The electrostatic precipitator element is characterized by being provided with an insertion passage through which the electrostatic precipitator element can be removed from the casing by releasing the engagement with the mating member.

[0007]

[Operation] By engaging the engaging member of the electrostatic precipitator element with the temporary receiving portion, the electrostatic precipitator element having the oil pan can be suspended temporarily. Furthermore, by sliding the electrostatic precipitator element horizontally,
By releasing the engagement with the temporary receiving portion, the electrostatic precipitator element can be removed from the casing.

[0008]

Embodiments Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. As shown in FIG.
A casing 12 suspended from the casing 12 is fixed, and an element entrance/exit 13 is opened at the bottom surface of the casing 12. A lid 15 is rotatably supported on the lower edge of the casing 12 via a hinge 14, and the element entrance/exit 13 is opened and closed by the lid 15. And the above element entrance/exit 1
3, the electrostatic precipitator element 16 connects to the casing 12
It is configured to be attached and detached inside the device.

Referring to FIG. 2, the electrostatic precipitator element 16 in this embodiment has a plurality of ground side electrode plates 18a and high voltage side electrode plates 18b arranged alternately in a rectangular frame 17. The dust collecting section 18 is configured as follows. The upstream side of the dust collection section 18 is covered by a cover 17a of the frame 17, and the cover 17a includes an ionizing electrode wire 19 that extends horizontally and faces the dust collection section 18, and includes a coil spring (not shown). It is fixed via a tension member. Further, on the cover 17a, a counter electrode plate 20 and an air inlet 21, which are formed at the same time by, for example, punching, are formed long horizontally.
1 faces the ionizing electrode wire 19. Similar to the well-known electrostatic precipitator element, this air inlet 2
1, a dust-containing gas mixed with dust and cigarette smoke is introduced into the interior, and after the dust particles contained in the dust-containing gas are charged by the ionizing electrode wire 19 and the counter electrode plate 20, the grounding side electrode plate 18a is charged. By collecting the dust-containing gas, the dust-containing gas is purified.

In this embodiment, a fitting type cover 17a that is removably fitted to the frame 17 is adopted, so that by simply removing the cover 17a from the frame 17, the ionizing electrode wire 19 and the counter electrode can be removed. The plate 20 can be attached and detached at once. Therefore, the electrostatic precipitator element 16 can be easily divided into the dust collecting section 18 and the counter electrode section, which facilitates maintenance work.

[0011] When the opposing electrode plate 20 is the front surface, the frame body 17 has two side surfaces 22 with a downwardly inclined rear side.
A pair of handles 23 (only one is shown) are welded together. Furthermore, a pair of angled element holding members 24 are welded to the lower portions of both side surfaces 22, and the lower portion of the oil pan 25 is held by the element holding members 24. In this way, in this embodiment, since the element holding member 24 is employed, the oil pan 25 can be disposed in the casing 12 integrally with the electrostatic precipitator element 16. Oil droplets can be collected effectively.

Both sides 22 of the electrostatic precipitator element 16
A pair of engaging members 2 consisting of C-shaped channels extending in front and behind the electrostatic precipitator element 16 and opening downward are provided on the upper part of the electrostatic precipitator element 16.
6 and 27 are welded to each other. Referring to FIG.
The engaging members 26 and 27 each have horizontally extending portions 26a and 27a that horizontally move away from the electrostatic precipitator element 16,
The horizontally extending portions 26a, 27a are integrally provided with vertically extending portions 26b, 27b extending vertically downward from the distal ends thereof. In this embodiment, the widths of the electrostatic precipitator elements 16 in the front and rear directions are different, and in the structure shown in FIG.
The width l1 of the front engaging member 26 is the same as that of the rear engaging member 27.
It is set wider than the width l2 of .

On the other hand, in a portion of the casing 12 in the vicinity of the element entrance/exit 13, rails 28 are provided as temporary receiving portions that vertically face each of the engaging members 26 and 27, respectively. The rail 28 has a horizontally extending portion 28a that extends horizontally toward the electrostatic precipitator element 16, and a corresponding engaging member horizontally extending portion 2 from the tip of the horizontally extending portion 28a.
It is integrally provided with a vertically extending portion 28b extending perpendicularly toward the center portion of the lower surface of 6a, 27a. The height of the vertically extending portion 28b is set higher than the height of each of the vertically extending portions 26b and 27b of each engaging member, so that during temporary receiving, which will be described later,
The horizontally extending portions 26a and 27a of each engaging member can be received. As shown in the figure, the rail 28 is divided in the front-rear direction of the electrostatic precipitator element 16, and defines gaps K1 and K2 as insertion passages that are perpendicularly opposed to each of the engaging members 26 and 27, respectively. As shown in the figure, the widths L1 and L2 of each gap K1 and K2 in the front and back direction are
The relationship between the widths l1 and l2 of each engaging member 26 and 27 is as follows:
L1>l1>L2>l2. Note that the above dimension setting is only an example, and for example, the widths l1 and l2 in the front and rear direction of each engaging member 26 and 27 are
By setting 1<l2, the relationship between the widths L1 and L2 in the front-rear direction of each gap K1 and K2 may be set as L2>l2>L1>l1. In addition, the insertion passage is not limited to the gaps K1 and K2 created by dividing the rail 28 in the front and back direction of the electrostatic precipitator element 16, but for example, as shown in FIG. 4,
The notches K1 and K2 may be formed by cutting out the portions of the rail 28 that face the respective engaging members.

In this embodiment, the rail 28 is
It is reinforced from the lower side by a frame 40 that partitions the element entrance/exit 13 of the casing 12, and this frame 40 includes a pair of elements that support the lower part of the electrostatic precipitator element 16 via the oil pan 25. A support mechanism A is provided. Referring to FIGS. 5 to 7, each element support mechanism A extends in the front-back direction of the electrostatic precipitator element 16 and comes into contact with the lower surface of the oil pan 25, thereby holding the electrostatic precipitator element 16. The U-shaped support wire 41 and the screw 4 are arranged in a position facing each other in the front-rear direction of the electrostatic precipitator element 16.
2 to the lower surface of the frame 40, and
First and second stops 43 and 44 that hold the support wire 41
This is specified by the following.

The support wire 41 is formed by, for example, bending a highly rigid steel bar, and hook portions 41a are formed at both ends thereof. In this example,
Although a structure in which one oil pan 25 is held by a pair of support wires 41 is adopted, depending on the type of air cleaner, the number of support wires 41 may be one or three. The first stop 43 includes a hook portion 43a that opens upward, and the intermediate curved portion of the support wire 41 is pivotally supported by the hook portion 43a. Further, the second stopper 44 is provided with a pair of L-shaped hook portions 44a that face each other in the left-right direction of the electrostatic precipitator element 16. part is supported.

In this embodiment, the support wire 41 is arranged in a position extending in the front and back direction of the electrostatic precipitator element 16, and the electrostatic precipitator unit 16 is supported via the oil pan 25, so that the electrostatic precipitator unit 16 is supported as shown in FIG. As shown on the right side, if the electrostatic precipitator unit 16 is housed without the oil pan 25 attached, the element holding member 24 will be exposed downward and the lid 15 will not close. For this reason, oil pan 2
It is possible to reliably prevent the electrostatic precipitator unit 16 from being attached to the casing 12 in a state where the electrostatic precipitator unit 5 is forgotten to be attached.

Next, the operation will be explained. To remove the electrostatic precipitator element 16 from the housed state shown on the right side of FIG. 1, first rotate the lid 15 to open the element entrance/exit port 13. Next, while supporting the lower surface of the oil pan 25 with one hand, hook portion 41a of support wire 41 shown in FIGS.
By pinching it with the other hand in the direction of arrow B (FIG. 6) and lowering it downward, both ends of the support wire 41 are released from the second stopper 44 and are attached to the hook part 43a of the first stopper 43. The oil pan 25 is rotated downward around the supported intermediate curved portion to release the oil pan 25. From that state, oil pan 2
5, the engaging members 26 and 27 of the electrostatic precipitator element 16 are moved to the corresponding rails 29 and 3, respectively, as shown by the two-dot chain line in FIG.
I was seated at 0 and was temporarily accepted. Next, as shown in the direction of arrow F in FIG.
The electrostatic precipitator element 16 can be removed from the casing 12 by placing the engagement members 26 and 27 facing the gaps K1 and K2, respectively, and pulling out the engaging members 26 and 27 through the gaps K1 and K2.

In addition, each engaging member 26, 27 is inserted into the element entrance/exit port 13 through the corresponding gap K1, K2, and the electrostatic precipitator element 16 is inserted in the reverse order of the above-mentioned operation.
After temporarily placing each of the engaging members 26 and 27 on the rail 28 by sliding it in the direction opposite to the arrow F, lift the lower surface of the oil pan 25 upward with one hand, and lift the element support mechanism A with the other hand. By operating it, the electrostatic precipitator element 16 removed from the casing 12 can be attached.

As described above, in this embodiment, by engaging the engaging members 26 and 27 with the rail 28, the electrostatic precipitator element 16 having the oil pan 25 can be suspended temporarily, and the electric precipitator element 16 can be suspended temporarily. Dust collection element 1
6 horizontally, the engagement between the rail 28 and the engaging members 26 and 27 can be released and the electrostatic precipitator element 16 can be removed from the casing 12. Therefore, the oil pan 25 is integrally provided. The electrostatic precipitator element 16 can be easily inserted and removed. Moreover, in this embodiment, the width L1 in the front-rear direction of each gap K1, K2,
Since the relationship between L2 and the widths l1 and l2 of each of the engaging members 26 and 27 is set as L1>l1>L2>l2, it is possible for the electrostatic precipitator element 16 to be placed in the wrong position in the front and back direction and to be inserted into the casing 12. can be prevented from being accommodated in

Furthermore, in this embodiment, since the handle 23 is fixed in a backward tilting position, when holding the electrostatic precipitator element 16 above the head of the person performing the removal work, the electrostatic precipitator element 16 can be becomes easier to grasp. Further, when the handle 23 is attached so as to face the center of gravity of the electrostatic precipitator element 16, it becomes easier to hold the electrostatic precipitator element 16.

[0021] In embodying this invention, it goes without saying that the handle 23 may be omitted, and that various other modifications may be made within the scope of the claims of the present invention.

[0022]

[Effects of the Invention] As explained above, according to the present invention,
By engaging the engaging member with the temporary receiving part, the electrostatic precipitator element having the oil pan can be suspended temporarily, and by sliding the electrostatic precipitating element horizontally, it can be suspended between the temporary receiving part and the electrostatic precipitator element. Since the electrostatic precipitator element can be removed from the casing by releasing the engagement, the electrostatic precipitator element integrally provided with the oil pan can be easily inserted and removed.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing essential parts of the invention.

FIG. 2 is a partially cutaway perspective view of the electrostatic precipitator element of the present invention.

FIG. 3 is a partial bottom view of the invention.

FIG. 4 is a partial bottom view showing another embodiment of the invention.

FIG. 5 is a side view of the element holding mechanism of the present invention.

FIG. 6 is a front view of the element holding mechanism of the present invention.

FIG. 7 is a perspective view showing the state of use of the invention.

FIG. 8 is a schematic cross-sectional view showing a conventional example.

FIG. 9 is a schematic cross-sectional view showing the basic structure in the development process of this invention.

[Explanation of symbols]

12 Casing 13 Element entrance 16 Electrostatic precipitator element 18 Dust collection section 24 Oil pan holding member 25 Oil pan 26 Engagement member 27 Engagement member 28 Rail (temporary receiving part) K1 Insertion passage K2 Insertion passage

Claims (1)

[Claims] Claim 1: A dust collection unit that removes dust from the sucked air (
18) and an oil pan (2) that collects oil droplets from the electrostatic precipitator element (16).
5), a casing (12) that accommodates the oil pan (25) and the electrostatic precipitator element (16), and an element entrance/exit (13) formed on the lower surface of the casing (12).
), an oil pan holding member that removably holds the oil pan (25) below the dust collection section (18), and an oil pan holding member that detachably holds the oil pan (25) below the dust collection section (18); ) is integrally provided with a pair of engaging members (26) and (27) protruding from both upper side surfaces of the casing (12), and the engaging member (26) is provided in a portion near the element entrance/exit (13) inside the casing (12). ) (27) to temporarily receive the lower side of the electrostatic precipitator element (16) exposed below the casing (12); Dust collection element (16
) by horizontally sliding the temporary receiving part (28
) and the above-mentioned engaging members (26) and (27), and the electrostatic precipitator element (16) is removed from the casing (12).
A ceiling-suspended air cleaner characterized by having insertion passages (K1) and (K2) that can be removed from the ceiling.