JP2663735B2 - Ceiling suspended air purifier - Google Patents

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 purifier, and more particularly, to a ceiling-suspended air purifier capable of collecting oil droplets from an electrostatic precipitating element.

[0002]

2. Description of the Related Art Generally, a structure shown in FIG. 13 is widely known as a ceiling-suspended air cleaner (for example, Japanese Patent Application Laid-Open No. 62-286564). In that structure, the casing 1 suspended from the ceiling 100
The casing 101 is provided in the casing 101 by the suction force of a fan 102 disposed therein.
3 is provided with a suction grill 104 for sucking the air and a blow grill 105 for returning the sucked air to the room 103. On the upstream side of the fan 102, an electric dust collecting element 106 for removing dust in the air sucked from the suction grill 104 is arranged. Is attached to and detached from the inside of the casing 101 through an element entrance 107 formed in the casing 101. The element entrance and exit 107 is configured to be opened and closed by an electrode receiving panel 108 that covers the entire lower surface of the casing 101. One end of the electrode panel 108 in the longitudinal direction is pivotally supported on the lower surface of the casing 101, and the electrode panel 108 is opened and closed by rotating while the electric dust collecting element 106 is seated on the upper surface on the other end side. The dust collection element 106 is configured to be detachable from the casing 101.

However, when the above-mentioned structure is installed in a place such as a yakiniku restaurant, an eel shop, a Chinese restaurant, or a factory where a large amount of oil mist is generated, the electric power is consumed during a long period of use. Dust collecting part 10 of dust collecting element 106
There is a problem that the oil collected in 6a collects, falls, and leaks outside. In view of this, the applicant of the present application has disclosed in Japanese Patent Application No. 3-36008, as shown in FIG. A structure for collecting oil dripping from the dust collecting portion 106a is proposed.

When the oil pan 110 is disposed immediately below the electrostatic precipitating element 106, as in the structure of Japanese Patent Application No. 3-36008, the electric precipitating element attaching / detaching structure described with reference to FIG. If the structure shown in FIG. 14 is followed as it is, the turning radius of the electrode receiving panel 108 is large, so that when the electrode receiving panel 108 is opened, the oil pan 110 is greatly inclined, and the collected oil may spill.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and even when an oil pan is disposed below an electric dust collecting element, a ceiling suspension which can easily take out the electric dust collecting element or the oil pan. It is intended to provide a shaped air purifier.

[0006]

In order to solve the above-mentioned problems, a ceiling-suspended air purifier according to the present invention comprises an electric dust collecting element having a dust collecting portion for removing dust in sucked air; An oil pan that collects oil droplets of the dust collecting element, a casing that houses the oil pan and the electric dust collecting element, and an element inlet / outlet formed on a lower surface of the casing. An oil pan holding member for detachably holding the oil pan below the dust part, and a pair of engaging members protruding from both upper side surfaces of the electric dust collecting element are integrally provided, By temporarily engaging the lower portion of the electrostatic precipitating element by exposing the lower side of the casing below the casing by engaging the engaging member with the portion near the element entrance and exit, It is characterized in that is provided a removable temporary receiving the electric precipitator element to disengage from the casing by tilting the electric dust collector elements vertically.

[0007]

The electric dust collecting element having the oil pan can be temporarily suspended by engaging the engaging member of the electric dust collecting element with the temporary receiving portion. Further, by tilting the electric dust collecting element up and down, the engagement with the temporary receiving portion is released, and the electric dust collecting element can be removed from the casing.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. As shown in FIG.
A casing 12 suspended from the casing 12 is fixed, and an element entrance 13 is opened on a lower 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 13 is opened and closed by the lid 15. And the above element doorway 1
3, the electric dust collecting element 16 is
It is configured to be attached and detached inside.

Referring to FIG. 2, an electrostatic precipitating element 16 in this embodiment has a rectangular frame 17 in which a plurality of ground-side electrode plates 18a and a plurality of high-voltage side electrode plates 18b are alternately arranged. And a dust collecting unit 18 configured as follows. The upstream side of the dust collecting portion 18 is covered by a cover 17a of the frame 17, and the cover 17a has a horizontally extending ionization electrode wire 19 facing the dust collecting portion 18 including 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 formed simultaneously by, for example, a punching process are formed to be long horizontally, and the counter electrode plate 20 and the air inlet 2 are formed.
1 faces the ionization electrode wire 19. And like the well-known electric precipitating element, this air inlet 2
1, a dust-containing gas mixed with dust and tobacco smoke is introduced into the inside, and the dust particles contained in the dust-containing gas are charged by the ionization electrode wire 19 and the counter electrode plate 20, and then the ground-side electrode plate 18 a The dust-containing gas is cleaned by collecting the dust.

In this embodiment, since the cover 17a of a fitting type which is detachably fitted to the frame 17 is employed, the ionization electrode wire 19 and the counter electrode can be obtained simply by removing the cover 17a from the frame 17. The plate 20 can be detached at a time. Therefore, since the electric dust collecting element 16 can be easily divided into the dust collecting part 18 and the counter electrode part, maintenance work becomes easy.

When the opposing electrode plate 20 is used as the front surface, the rear side is inclined downward on both sides 22 of the frame 17.
A pair of handles 23 (only one is shown) are welded. Furthermore, a pair of angle-shaped oil
Lupine holding member 24 are welded, the bottom of the oil pan 25 is held by the oil pan <br/> holding member 24. As described above, in the present embodiment, since the oil pan holding member 24 is employed, the oil pan 25 can be disposed integrally with the electric dust collecting element 16 in the casing 12 as a result. Oil droplets on the electric dust collecting element 16 can be effectively collected.

Both side surfaces 22 of the above-mentioned electrostatic precipitating element 16
In the upper part of the upper part, engaging members 26, 2 comprising a C-shaped channel extending forward and backward of the electrostatic precipitating element 16 and opening downward are provided.
7 are welded. With reference to FIG.
Reference numerals 6 and 27 denote horizontal extending portions 26a and 27a, respectively, which extend horizontally away from the electrostatic precipitating element 16, and horizontal extending portions 26a and 27a.
Vertically extending portions 26b, 27b extending vertically downward from the distal ends of the a, 27a are integrally provided. In the present embodiment, the width of the electrostatic precipitating element 16 in the left-right direction is different from each other. In the structure of FIG. 3, the width L1 of the right engaging member 26 is larger than the width L2 of the left engaging member 27. Widely set.

On the other hand, rails 28 and 29 as temporary receiving portions are provided in the vicinity of the element entrance 13 of the casing 12 so as to face the engaging members 26 and 27 in the vertical direction, respectively. Each rail 28, 29 has a horizontal extension 28 extending horizontally toward the electrostatic precipitating element 16.
a, 29a, and from the tip of the horizontal extension 28a, 29a,
Vertical extensions 28b, 29b extending vertically toward the generally lower center portions of the corresponding engagement member horizontal extensions 26a, 27a.
And are integrally provided. The height h1 of the vertical extension portions 28b, 29b is set higher than the height h2 of each engagement member vertical extension portion 26b, 27b.
Each engaging member is set so as to be able to receive the horizontally extending portion 26a, 27a. Also, each engaging member vertical extension 26
The height h2 of each of the engagement member vertical extension portions 26b, 27b is adjusted by inclining by a small angle of, for example, about 10 degrees at the time of engaging and disengaging the electric dust collection element 16 described later.
7b are set to dimensions that allow them to be disengaged from the corresponding vertically extending portions 28b, 29b of the rails 28, 29, respectively.
In this embodiment, the vertical extending portions 28b, 29b of the rails 28, 29 are respectively connected to the corresponding engaging members 26, 2
By opposing the intermediate portion 7, the electrostatic precipitating element 16 can be moved by a predetermined stroke in the direction in which the engaging members 26 and 27 protrude (the left-right direction in FIG. 3). A portion of the side wall of the casing 12 near the upper side of the rail 29 has a shape in which a lower side is away from the electric dust collecting element 16.
The engaging member 26 forms a space S for engaging and disengaging from the rail 28. The rails 28 and 29 are connected to the frame 4 that defines the element entrance 13 of the casing 12.
0, the frame 4
A pair of element support mechanisms A that support the lower part of the electric dust collecting element 16 via the oil pan 25 are provided at the reference numeral 0.

Referring to FIGS. 4 to 6, each element supporting mechanism A extends in the front-rear direction of the electric dust collecting element 16 and contacts the lower surface of the oil pan 25 so that the electric dust collecting element 16 is provided. And a U-shaped support wire 41 that holds the support wire 41 is disposed in a position facing the front and rear direction of the electrostatic precipitating element 16 and is fixed to the lower surface of the frame 40 by screws 42 and holds the support wire 41. It is embodied by first and second stoppers 43 and 44.

The support wire 41 is formed by bending a rigid steel bar, for example, and has hook portions 41a at both ends. In this embodiment,
Although a structure in which one oil pan 25 is held by a pair of support wires 41 is adopted, one or three support wires 41 may be used depending on the type of the air cleaner.
The first stopper 43 includes an upwardly opening hook portion 43a, and the hook portion 43a pivotally supports the intermediate curved portion of the support wire 41. The second stopper 44 has a pair of L-shaped hooks 44a opposed to each other in the left-right direction of the electrostatic precipitating element 16, and the L-shaped hooks 44a allow both ends of the support wire 41 to be opposed. The part is supported.

In the present embodiment, since the support wire 41 is arranged in a position extending in the front-rear direction of the electric dust collecting element 16 and the electric dust collecting unit 16 is supported via the oil pan 25, FIG. As shown on the right side, when the electric dust collection unit 16 is accommodated in a state where the oil pan 25 is not attached, the element holding member 24 is exposed downward and the lid 15 cannot be closed. For this reason, oil pan 2
It is possible to reliably prevent the electric dust collection unit 16 from being mounted on the casing 12 when the user forgets to mount the electric dust collection unit 5.

Next, the operation will be described. In order to remove the electrostatic precipitating element 16 from the storage state shown in FIG. 3, first, the lid 15 is rotated to open the element entrance 13 (see FIG. 1). Next, while holding the lower surface of the oil pan 25 with one hand, the hook 41a of the support wire 41 shown in FIGS. 4 to 6 is pinched down in the direction of arrow B (FIG. 5) with the other hand, and lowered. Both ends of the support wire 41 are detached from the second stopper 44, and the hook portions 43a of the first stopper 43 are separated.
The oil pan 25 is released by pivoting downward about the intermediate curved portion supported by the shaft. Then, by lowering the hand supporting the lower surface of the oil pan 25 from this state, the engaging members 26 and 27 of the electrostatic precipitating element 16 are brought into contact with the corresponding rails 29 and 3 as shown in FIG.
She sits at 0 and is temporarily accepted. Next, from the state of FIG.
By holding the engaging member 3 with both hands and tilting the engaging member 7 side of the electrostatic precipitating element 16 upward, the engaging member 26 is still engaged with the rail 28 as shown in FIG. 7 is removed from rail 29. Next, by sliding the electrostatic precipitating element 16 toward the rail 28 from the state shown in FIG. 8, the engaging member 26 is opposed to above the element entrance 13 as shown in FIG. Further, by tilting the engaging member 26 side of the electric dust collecting element 16 downward from the state of FIG. 9, the electric dust collecting element 16 is taken out of the casing 12 from the engaging member 7 side as shown in FIG. It is. Finally, the electric dust collecting element 16 can be removed from the casing 12 by swinging the engaging member 7 toward the space S from the state of FIG.

In addition, the electrostatic precipitating element 16 is tilted up and down in the reverse order to the above-mentioned operation, and the respective engaging members 26 and 27 are temporarily placed on the rails 28 and 29. By lifting the lower surface upward and operating the element support mechanism A with the other hand, the electric dust collecting element 16 removed from the casing 12 can be mounted.

As described above, in this embodiment, the electric dust collecting element 16 having the oil pan 25 can be temporarily suspended by engaging the engaging members 26, 27 with the rails 28, 29. By tilting the electrostatic precipitating element 16 up and down, the rails 28, 2
Since the electric dust collecting element 16 can be detached from the casing 12 by disengaging the electric dust collecting element 16 from the casing 12, the electric dust collecting element 16 integrally provided with the oil pan 25 can be easily inserted and removed. Moreover, the electric dust collecting element 1
6 is tilted up and down so that the engagement members 26 and 27 are
Since the structure for engaging the electric dust collecting element 16 is adopted, the work of inserting and removing the electric dust collecting element 16 can be performed in a small space.

Further, in this embodiment, since the handle 23 is fixed in a posture inclined backward, the electric dust collecting element 16 is held when the electric dust collecting element 16 above the head of the person performing the removing operation is held. It becomes easy to grasp. In addition, when the handle 23 is mounted so that the mounting position is opposed to the center of gravity of the electrostatic precipitating element 16, the handle 23 is more easily held.

In another embodiment shown in FIGS. 11 and 12, a rotating rail 5 supported by a casing 12 is used as a temporary receiving portion.
An example in which 0 is adopted is shown. Of this rotating rail 50,
A through hole 51 is formed in the vicinity of one end in the longitudinal direction. The spacer 52, which is rotatably inserted into the through hole 51, is fixed to the side wall of the casing 12 with a screw 53, so that the rotation The rail 50 is supported rotatably.

At the other end of the rotating rail 50, a stopper 55 is engaged with an angle-shaped engaging member 54 (shown only in FIG. 12) as an engaging member fixed to the electrostatic precipitating element 16. Has been established. Further, on the side wall near the other end of the rotating rail 50, an engaging portion 57 that engages with a vertically long hole 56 formed in the side wall of the casing 12 is integrally cut and raised. The vertical movement of the engaging portion 57 in the long hole 56 restricts the rotation rail 5.
The rotation amount of 0 is restricted to, for example, about 10 degrees. Then, as shown in FIG. 12, when the engaging portion 57 is in contact with the lower edge of the long hole 56, the upper portion of the electric dust collecting element 16 is exposed to the outside of the casing 12 with a gap D therebetween. ,
The position of the slot 56 is set.

According to the structure described above, as shown in FIG.
4, the rotating rail 50 is rotated downward about the screw 53 from the horizontal position indicated by the two-dot chain line,
It stops when the engaging portion 57 comes into contact with the lower edge of the elongated hole 56. Thereby, the upper part of the electric dust collecting element 16 is
As shown by the solid line in FIG.
Is lifted slightly upward from that state, the stopper 55 is straddled over the angle-shaped engaging member 54, and the electric dust collecting element 16 is removed from the casing 12 by being pulled out from the gap D. it can.

In embodying the present invention, it is needless to say that the handle 23 may be omitted, and that various changes may be made within the scope of the present invention.

[0025]

As described above, according to the present invention,
By engaging the engaging member with the temporary receiving portion, the electric dust collecting element having the oil pan can be temporarily suspended, and by tilting the electric dust collecting element up and down, the electric dust collecting element can be engaged with the temporary receiving portion. Since the combination can be released and the electric dust collecting element can be removed from the casing, the electric dust collecting element integrally provided with the oil pan can be easily inserted and removed. In addition, since the structure in which the electric dust collecting element is tilted up and down to engage the engaging member with the temporary receiving portion is employed, the work of inserting and removing the electric dust collecting element can be performed in a small space.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a main part of the present invention.

FIG. 2 is a partially cutaway perspective view of the electric dust collecting element of the present invention.

FIG. 3 is a cross-sectional view showing a state where the electric dust collecting element of the present invention is housed inside a casing.

FIG. 4 is a side view of the element holding mechanism of the present invention.

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

FIG. 6 is a perspective view showing a use state of the element holding mechanism of the present invention.

FIG. 7 is a sectional view showing a process of removing the electric dust collecting element of the present invention from the casing.

FIG. 8 is a sectional view showing a process of removing the electric dust collecting element of the present invention from the casing.

FIG. 9 is a cross-sectional view showing a process of removing the electric dust collecting element of the present invention from the casing.

FIG. 10 is a sectional view showing a process of removing the electric dust collecting element of the present invention from the casing.

FIG. 11 is an exploded perspective view of a temporary receiving portion showing another embodiment of the present invention.

FIG. 12 is a perspective view of an essential part showing a use state of the temporary receiving part of FIG. 11;

FIG. 13 is a schematic sectional view showing an example of the related art.

FIG. 14 is a schematic sectional view showing a basic structure in a development process of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 12 Casing 13 Element entrance / exit 16 Electric dust collection element 18 Dust collection part 24 Oil pan holding member 25 Oil pan 26 Engagement member 27 Engagement member 28 Rail (temporary receiving part) 29 Rail (temporary receiving part) 50 Rotation rail (temporary) Receiving part) 54 engaging member

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 1-236956 (JP, A) JP-A 56-110850 (JP, U) JP 2-36610 (JP, Y2)

Claims (1)

(57) [Claims] A dust collecting section (1) for removing dust in the sucked air.
8) an electrostatic precipitating element (16) having an electric precipitating element, an oil pan (25) for collecting oil droplets of the electric precipitating element (16), an oil pan (25) and the above-mentioned electric precipitating element (16). A housing (12) to be housed, and an element inlet / outlet (13) formed on the lower surface of the casing (12).
6) an oil pan holding member for detachably holding the oil pan (25) below the dust collecting portion (18), and a pair of a pair projecting from both upper side surfaces of the electric dust collecting element (16). The engaging members (26), (27) and (54) are provided integrally, and the casing (12)
By engaging the engaging members (26), (27), and (54) with the inside and near the element entrance (13), the lower side of the electrostatic precipitating element (16) is placed below the casing (12). It is possible to temporarily receive the electric dust collecting element (16) in an exposed state, and disengage the electric dust collecting element (16) by tilting the electric dust collecting element (16) up and down to remove the electric dust collecting element (16) from the casing (12). A ceiling-suspended air purifier comprising provisional receiving portions (28), (29) and (50).