JP5334647B2 - Filter device for range hood - Google Patents

Description

  The present invention relates to a filter device for a range hood for capturing and collecting oil from oil smoke generated mainly by cooking.

  The range hood provided in the kitchen discharges steam, oily smoke, etc. generated by cooking to the outdoors by a fan, but this range hood mainly captures and collects the oil contained in the oily smoke. Is provided.

  As such a filter, a lath net, a metal net, a punching metal, or the like has been conventionally used. However, the lath net or the metal net has a fine mesh, so that the cleaning property is poor, and it is particularly difficult to remove oil or dust that has penetrated inside. The punching metal has a problem that the cleaning performance is somewhat better than that of the lath net or the metal net, but the oil collecting efficiency is poor and the original function of the filter cannot be fully exhibited.

  Therefore, in Patent Document 1, a plurality of rows are formed by vertically arranging slits in a predetermined shape at a pitch of 2 to 5 mm, and the entire tongue piece defined by the slits in each row is refracted in one direction. There is a proposal to form a filter unit for a range hood by inclining and forming a single filter with a vent hole having a vertical width of 1 to 3 mm without leaving a plane portion between the slits, and combining this single filter or a plurality of filters. Has been made.

  Further, Patent Document 2 discloses a range hood configured by two thin plates having vent holes provided at predetermined intervals so that the vent holes of one thin plate face each other so as to face the wall of the other thin plate. Filters have been proposed.

Japanese Utility Model Publication No. 2-043456 Japanese Utility Model Publication No. 58-087026

  The filter for the range hood proposed in Patent Document 1 is easier to wash than a conventional filter using a lath net or a metal net, but is easily clogged because the opening width of the vent is as small as 1 to 3 mm. Since a large number of vents are opened at a pitch of 2 to 5 mm, it is very troublesome and requires a lot of time to clean and clean all the vents. When the filter is clogged, the air passage is blocked, and the ventilation air volume is insufficient, resulting in poor ventilation. Therefore, it is necessary to frequently clean the filter to remove clogged oil and dust.

  In addition, the range hood filter proposed in Patent Document 2 has a relatively large ventilation hole, and thus has higher cleaning performance than a conventional filter using a lath net or a metal net. Since the hole has a closed periphery, it is difficult to remove oil and dust attached to the periphery, and there is a problem that the cleaning property is not necessarily high. Oil and dust adhering to the periphery of the air hole are difficult to remove unless they are rubbed with a scrubber or a toothbrush, and not only the cleaning work is difficult, but also problems such as scratching the filter surface and peeling off the paint occur.

  This invention is made | formed in view of the said problem, The process made into the objective is to provide the filter apparatus for range hoods which can aim at the improvement of cleaning property, keeping the oil collection effect high. .

In order to achieve the above object, the invention according to claim 1 includes an upper and lower upper plate and a lower plate that are arranged at predetermined intervals in the vertical direction at an intake port that opens to the range hood. to form a filter device, as well as placing the flow regulating plate below the lower plate, wherein the upper plate defines a plurality of openings, said lower plate has a plurality of notches holes opening on at least one edge it Na interdigital by being formed a set, together with arranging alternating the cutout hole and the opening, the width of the wall between the openings of the upper plate than the width of the notched hole of the lower plate The width of the wall between the cutout holes of the lower plate is set to be equal to or larger than the width of the opening of the upper plate.

According to a second aspect of the present invention, in the first aspect of the present invention, the lower plate is formed with beads protruding downward along the periphery of the plurality of cutout holes. The invention according to claim 3 is the invention according to claim 1 or 2, wherein the lower plate is detachably attached to the range hood.

The invention according to claim 4 is the invention according to any one of claims 1 to 3 , wherein the upper plate and the lower plate are inclined with respect to a horizontal plane, and an oil receiver is provided along a lowermost edge of the lower plate. It is provided so as to be detachable.

  According to the first aspect of the present invention, the filter device is constituted by the rectifying plate disposed below the lower plate, and the upper and lower two upper plates and the lower plate disposed at a predetermined interval in the vertical direction. The openings formed in the upper plate and the cutout holes formed in the lower plate are alternately arranged, and the width of the wall between the openings in the upper plate is set to be equal to or larger than the width of the cutout holes in the lower plate. Since the width of the wall between the notch holes is set to be equal to or greater than the width of the opening of the upper plate, the oil smoke sucked from the notch hole of the lower plate does not pass through the opening formed in the upper plate as it is, Turbulence is generated by collision in the space between the upper plate and the lower plate and in the space between the lower plate and the rectifying plate. Due to the influence of this turbulent flow and the increase in the internal pressure of the space due to the rapid passage of the oil smoke through the narrow space, the oil particles contained in the oil smoke become large due to collision or the like, and the oil is easily removed from the oil smoke. This effect ensures a high oil collection efficiency in the filter device.

  In addition, the notch hole formed in the lower plate is not a hole whose peripheral edge of the opening is closed, but opens to at least one end edge of the lower plate. Even if it is not rubbed, etc., it can be easily removed by simply wiping. For this reason, while the cleaning property of a filter apparatus is improved, generation | occurrence | production of malfunctions, such as a damage | wound by peeling and peeling of a coating, can be prevented.

According to the invention of claim 2, the bead can increase the strength and rigidity of the lower plate, and can efficiently collect oil. According to the third aspect of the present invention, since the mounted detachably lower plate to the range hood, remove the lower plate at the time of cleaning, the adhered oil or dust thereto can be easily removed better workability.

According to the fourth aspect of the present invention, since the upper plate and the lower plate are inclined with respect to the horizontal plane, the oil adhering to the upper plate and the lower plate can flow along the inclination of both plates, and along the lowermost edge of the lower plate. Then, the oil can be poured into an oil pan that is detachably provided for recovery. The oil accumulated in the oil receiver can be easily discarded by removing the oil receiver.

It is a perspective view of a range hood. It is a disassembled perspective view of a range hood. It is the bottom view which looked at the range hood from the lower part. FIG. 4 is a sectional view taken along line AA in FIG. 3. It is a BB sectional view. It is the C section enlarged detail drawing of FIG. It is the bottom view which removed the baffle plate and looked at the range hood from the lower part. It is a perspective view of an inner surface panel. It is a top view of the inner plate and the upper plate of the filter device according to the present invention. It is a perspective view of the inner plate and the upper plate of the filter device according to the present invention. It is a perspective view of the lower plate of the filter device concerning the present invention. It is a perspective view of a baffle plate. It is a cross-sectional perspective view of the filter apparatus which shows the flow path of oil. It is a bottom view of the lower plate of the filter device showing the flow path of oil.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 is a perspective view of a range hood provided with a filter device according to the present invention, FIG. 2 is an exploded perspective view of the range hood, FIG. 3 is a bottom view of the range hood as viewed from below, and FIG. 5 is a cross-sectional view taken along the line BB in FIG. 3, FIG. 6 is an enlarged detail view of a portion C in FIG. 5, and FIG. 7 is a bottom view of the range hood as viewed from below with the rectifying plate removed. 8 is a perspective view of the inner panel, FIG. 9 is a plan view of the inner panel and the upper plate of the filter device, FIG. 10 is a perspective view of the inner panel and the upper plate, FIG. 11 is a perspective view of the lower plate of the filter device, and FIG. Is a perspective view of the current plate, FIG. 13 is a cross-sectional perspective view of the filter device showing the oil flow path, and FIG. 14 is a bottom view of the lower plate showing the oil flow path.

  A range hood 1 shown in FIG. 1 is installed above a gas stove or electric stove in a kitchen (not shown), and collects steam, oily smoke, etc. generated during cooking by a fan (not shown). To be discharged. Here, the range hood 1 is configured by installing a fan unit 2 (see FIG. 5) including an unillustrated fan and an unillustrated motor for driving the upper portion of a rectangular range hood main body 1A that opens downward. The fan unit 2 is concealed so that the front and left and right side surfaces are covered with the decorative plate 1B and cannot be seen. In addition, the operation part 3 for turning ON / OFF a fan and illumination is provided in the front side part of 1 A of range hood main bodies.

  Thus, the rectangular intake port 1a opened on the lower surface of the range hood main body 1A is covered with the inner panel 4 shown in FIGS. 2 and 8 (see FIGS. 3 to 5). A filter device 5 according to the present invention is installed in a rectangular opening 4a formed in the section, and this filter device 5 is arranged under a lower plate 5B described later at a suitable distance in the vertical direction. 6 (see FIGS. 4 and 5).

Here, as shown in FIG. 8, the inner panel 4 is formed in a rectangular reverse tray that bulges upward by sheet metal press molding, and its upper surface is from the front to the back with respect to a horizontal plane. The opening 4a having a rectangular shape is formed at the center thereof. And the peripheral edge of the inner surface panel 4 is edged by the flange 4b, and as shown in FIG.4 and FIG.5, the inner surface panel 4 is formed in the peripheral edge of the inlet port 1a of the range hood main body 1A. It is attached to the range hood main body 1A by being fixed to the flange 1b.

  The filter device 5 according to the present invention is mainly for capturing and collecting oil contained in oil smoke, and is formed on the inner panel 4 as shown in FIGS. The opening 4a is composed of two upper and lower upper and lower plates 5A and 5B and the rectifying plate 6 which are arranged at predetermined intervals in the vertical direction.

  Here, as shown in FIGS. 9 and 10, the upper plate 5 </ b> A is formed into a rectangular reverse tray shape by press forming of a sheet metal, and a rectangular bulging portion that rises upward at the center thereof. 5a is formed. A total of five rectangular openings 7 that are long in the front-rear direction are formed side by side in the left-right direction at appropriate intervals in the bulging portion 5a.

  Thus, the periphery of the upper plate 5A is folded upward, and the upper plate 5A is attached to and detached from the opening 4a of the inner panel 4 by fitting the periphery into the opening 4a of the inner panel 4. It is attached as possible.

  On the other hand, as shown in FIG. 11, the lower plate 5B is formed into a rectangular comb-teeth shape by press forming of a sheet metal, and each of the lower plates 5B opens to the front and rear edges (long sides) facing each other. Four notch holes 8 are formed in two rows in the front and rear, a total of eight. Here, the four notch holes 8 in each row are formed in the left-right direction with appropriate intervals, and a bead 9 (see FIG. 6) protruding downward is formed on the lower plate 5B. The bead 9 increases the strength and rigidity of the lower plate 5B. A knob 10 that is gripped when the lower plate 5B is attached and detached is attached to the front side in the width direction of the lower plate 5B. The edge on the back side of the lower plate 5B is shown in FIG. As shown, the inner surface panel 4 is held by being overlapped from above on an engaging portion 4c formed at a part of the periphery of the opening 4a.

  Thus, as shown in FIG. 7, the lower plate 5B is overlapped from above on an engaging portion 4c whose end on the back side is formed in the back side of the opening 4a of the inner panel 4 along the width direction. The front center in the width direction is detachably attached to the inner surface panel 4 by being locked by a clamp 11 provided on the inner surface panel 4 so as to be slidable in the front-rear direction.

  By the way, when the filter device 5 constituted by the upper plate 5A, the lower plate 5B, and the rectifying plate 6 is attached to the inner panel 4 with a predetermined interval in the vertical direction, as shown in FIG. The position and the width dimension are set so that the opened opening 7 and the cutout hole 8 do not overlap each other in plan view. That is, the openings 7 formed in the upper plate 5A and the cutout holes 8 formed in the lower plate 5B are alternately arranged in the left-right direction, and the wall width B1 between the cutout holes 8 of the lower plate 5B is The width B2 of the wall between the openings 7 of the upper plate 5A is set to be equal to or larger than the width b1 of the opening 7 of the upper plate 5A facing this (B1 ≧ b1). It is set to b2 or more (B2 ≧ b2).

  Further, as shown in FIG. 4, the upper plate 5A and the lower plate 5B are attached so as to incline toward the back side with respect to the horizontal plane, and extend along the back side edge which is the lowermost part of the lower plate 5B. A slender container-like oil receiver 12 is detachably attached to the inner panel 4. Here, as shown in FIG. 13, an oil drain port 4 d that opens to the oil receiver 12 is formed in the inner surface panel 4.

  The rectifying plate 6 installed substantially horizontally below the lower plate 5B of the filter device 5 configured as described above with a vertical interval therebetween is made of sheet metal as shown in FIG. It is formed in a rectangular plate shape, and its periphery is bent vertically upward. Hinges 13 are attached to the left and right sides of the rear edge of the current plate 6, and channel-like hooks 14 are attached to the front sides of the left and right side ends. Engagement holes 14a are respectively formed. In addition, the engagement metal fitting 15 is attached to two places corresponding to the hook 14 of the inner surface panel 4, and each engagement metal fitting 15 can be engaged with the engagement hole 14a of each hook 14 selectively. The pin 16 is provided so as to be slidable in the left-right direction.

  Thus, as shown in FIGS. 3 and 4, the back end of the current plate 6 is supported by the inner panel 4 so as to be vertically rotatable by a pair of left and right hinges 13. Engagement pins 16 (see FIG. 12) of a pair of left and right engagement fittings 15 provided on the inner panel 4 side engage with engagement holes 14a (see FIG. 12) of the pair of left and right hooks 14 provided on both sides. By doing so, it is installed substantially horizontally below the filter device 5. When the engagement pin 16 is slid laterally to disengage the hook 14 from the engagement hole 14a, the rectifying plate 6 is pivoted downward about the back hinge 13 and opened. Since the lower plate 5B of the filter device 5 is exposed as shown in FIG. 5, the lower plate 5B and the upper plate 5A can be attached or detached for cleaning or the like, or only the lower plate 5B is removed and the upper part remains attached to the inner panel 4. Oil and dust adhering to the lower surface of the plate 5A can be wiped off.

  In the range hood 1 configured as described above, if the fan of the fan unit 2 (see FIG. 5) is driven to rotate, for example, oil smoke generated during cooking is generated from the gap around the current plate 6 as shown in FIG. Although it is sucked into the range hood main body 1 </ b> A, when it passes through the rectifying plate 6, the oil smoke is squeezed and introduced into the filter device 5 while increasing its flow rate. Here, the filter device 5 includes upper and lower two upper plates 5A and a lower plate 5B arranged at a predetermined interval in the vertical direction, and an opening 7 and a lower plate 5B formed in the upper plate 5A are provided. Since the formed cutout holes 8 are arranged so as not to overlap each other in a plan view, the oil smoke is sucked from the cutout holes 8 of the lower plate 5B and the opening 7 formed in the upper plate 5A thereon. As shown by the arrows in FIG. 6, turbulence is generated by collision in the space between the upper plate 5A and the lower plate 5B and the space between the lower plate 5B and the rectifying plate 6 without passing through the air. Due to the influence of this turbulent flow and the increase in the internal pressure of the space due to the rapid passage of the oil smoke through the narrow space, the oil particles contained in the oil smoke become large due to collision or the like, and the oil is easily removed from the oil smoke. Due to this effect, the filter device 5 has a high oil collecting efficiency.

  In addition, the notch hole 8 formed in the lower plate 5B is not a hole in which the peripheral edge of the opening is closed, but is opened at the front and back edges of the lower plate 5B, and is attached to the peripheral edge. Even if the oil or dust is not rubbed with a scrubber or a toothbrush, it can be easily removed by simply wiping it. For this reason, the cleanability of the filter device 5 is improved, and the occurrence of defects such as scratches and peeling of the paint due to cleaning is prevented. In this embodiment, since the lower plate 5B is detachably attached to the inner panel 4, the rectifying plate 6 is opened and the lower plate 5B is removed as described above during cleaning, and the oil, dust, etc. adhering thereto are worked. It can be easily removed with good performance. The lower plate 5B can be easily detached from the inner panel 4 by releasing the lock to the inner panel 4 by the clamp 11 (see FIG. 7) and then pulling it out to the front side.

  Furthermore, in the present embodiment, the upper plate 5A and the lower plate 5B are inclined so as to be lowered toward the back with respect to the horizontal plane, so that the oil adhering to them is inclined by the gravity of the upper plate 5A and the lower plate 5B. The oil can be poured along the bottom edge of the lower plate 5B and can be collected by being detachably provided along the bottom edge of the lower plate 5B. Specifically, as shown in FIG. 13, the oil adhering to the lower surface of the upper plate 5A flows to the back side (right side in FIG. 13) along the inclination of the upper plate 5A and falls onto the lower plate 5B. . Further, the oil adhering to the lower surface of the lower plate 5B flows to the back side (the right side in FIG. 14) along the bottom of the notch hole 8 and the bead 9 on the near side as indicated by arrows in FIG. And then flows to the back side along the bottom of the notch hole 8 and the bead 9 and flows onto the inner panel 4 together with the oil dropped from the upper plate 5A, as shown in FIG. Thus, the oil drops fall from the oil discharge port 4 d to the oil receiver 12 and are collected by the oil receiver 12. The oil accumulated in the oil receiver 12 can be easily discarded by removing the oil receiver 12. In this case, since the beads 9 formed on the lower plate 5B protrude in a convex shape on the lower surface of the lower plate 5B, the oil is efficiently collected by the impact of oil smoke on the lower surface of the lower plate 5B. Since the bead 9 has a concave shape on the upper surface of the lower plate 5B, the flow direction of the oil is controlled by the bead 9, and the collected oil is efficiently guided to the oil receiver 12 and collected.

  Note that the shape and number of the openings 7 formed in the upper plate 5A and the cutout holes 8 formed in the lower plate 5B constituting the filter device 5 are not limited to those shown in the above-described embodiment. May be set arbitrarily.

DESCRIPTION OF SYMBOLS 1 Range hood 1A Range hood main body 1B Range hood decorative plate 1a Range hood main body inlet 1b Range hood main body flange 2 Fan unit 3 Operation part 4 Inner panel 4a Inner panel opening 4b Inner panel flange 4c Inner panel flange Engagement part 4d Oil drain port of inner panel 5 Filter device 5A Upper plate of filter device 5B Lower plate of filter device 5a Swelling portion of upper plate 5b Wall between notches in lower plate 5c Wall between openings of upper plate 6 Current plate 7 Upper plate opening 8 Lower plate notch 9 Lower plate bead 10 Knob 11 Clamp 12 Oil receiver 13 Hinge 14 Hook 14a Hook engagement hole 15 Engagement fitting 16 Engagement pin B1 Lower plate cut Width of wall between notches B2 of top plate Widths b1 opening width b2 notched hole of the wall between the mouth

Claims (4)

A range hood filter device comprising two upper and lower upper plates and a lower plate arranged at predetermined intervals in the vertical direction at the intake opening that opens to the range hood,
While arranging a baffle plate below the lower plate,
Forming a plurality of openings in the upper plate;
It said lower plate, to its name interdigital at least one edge being formed a plurality of notches holes opening to,
The openings and the cutout holes are arranged alternately, and the width of the wall between the openings of the upper plate is set to be equal to or larger than the width of the cutout holes of the lower plate, and the wall between the cutout holes of the lower plate is set. A filter device for a range hood, wherein the width is set to be equal to or greater than the width of the opening of the upper plate.   The range hood filter device according to claim 1, wherein a bead protruding downward is formed on the lower plate along the periphery of the plurality of cutout holes. The range hood filter device according to claim 1 or 2, wherein the lower plate is detachably attached to the range hood. The range according to any one of claims 1 to 3, wherein the upper plate and the lower plate are inclined with respect to a horizontal plane, and an oil receiver is detachably provided along a lowermost edge of the lower plate. Filter device for hood.

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