JP2011232005A - Range hood - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a range hood including a cleaning function of a filter member, and capable of removing extraneous matters from a filter member without using centrifugal force and water, continuing the cleaning for a long period without degrading the cleaning function, and starting the cleaning of the filter member in conjunction an operation stop a blower.SOLUTION: A filter cleaning device B including the rotatable filter member 11 is disposed in an exhaust air trunk 10 from a suction opening 8 for sucking and capturing contaminated air G to a discharge opening 7 for exhausting the air outdoors, and a motor 16a for driving and rotating the filter member 11, extraneous matter removing members 17a, 17b for removing dirt attached to filter faces 11a, 11b of the filter member 11, and a supporting member 17c for supporting the extraneous matter removing members 17a, 17b are disposed, so that the dirt is removed from the filter faces 11a, 11b of the filter member 11 by driving and rotating the filter member 11.

Description

  The present invention relates to a range hood that sucks and collects contaminated air (contaminant) generated during cooking and exhausts it outdoors, and in particular, a filter that separates and collects oil and fat and dust contained in contaminated air. The present invention relates to a range hood having a filter cleaning function for cleaning a member.

The range hood is provided with a suction port (capture space) that is opened downwards to suck and collect polluted air such as waste gas and oil smoke that rises from a cooking device or cooking pan during cooking. ing. And, for collecting and collecting (capturing) fats and oils contained in the contaminated air in the exhaust air passage that discharges the collected contaminated air and exhausts it to the outside through the exhaust duct through the exhaust duct. A filter member is provided.
Incidentally, as a filter member, a cut bend type, a punching metal type, a mesh type made of a lath net, or the like is generally known.

By the way, separation and recovery by the filter member such as oil and fat contained in the contaminated air is performed by adhesion of the oil and fat to the filter member due to collision (contact) when the contaminated air passes through the filter member. ing.
For example, in the case of a punching metal type filter member, when polluted air passes through an infinite number of vent holes provided with rising hole edges protruding toward the downstream side of polluted air, the upstream side of the exhaust air passage Oils and fats are attached to the surface and the rising edge of the vent hole and collected by collision (contact) of contaminated air with the surface of the filter member located on the side and the rising hole edge.
That is, because the filter member of the range hood is formed by a collection of fine holes through which contaminated air passes, clogging of the holes due to deposits (dirt) such as oil and fat that gradually accumulate with use is prevented. This causes various problems such as a reduction in suction force. Therefore, it is necessary to periodically perform cleaning (washing) to remove the deposits.

However, in order to remove deposits from the filter member, it is necessary to remove the filter member attached to the exhaust air passage in the range hood and wash it with a sink or the like using a cleaning tool such as a brush. Then, after removing the deposits, it is necessary to attach the filter member to the exhaust air passage.
As described above, the operation of removing the deposits from the filter member is very troublesome and troublesome. In particular, it takes considerable labor and labor to remove the stubborn oil and fat adhering to the surface of the filter member and the like.

  Therefore, in order to reduce such troublesome and time-consuming cleaning (washing) of the filter member, a filter cleaning function is provided to remove deposits such as oil and fat without removing the filter member from the range hood. A range hood has been proposed (see, for example, Patent Document 1)

Japanese Patent Laying-Open No. 2006-292248 (see paragraph number 0026 and FIG. 1)

By the way, in description of patent document 1, the structure which removes the stain | pollution | contamination adhering to a filter member is employ | adopted with the brush (dirt | wipe wiping means) which moves while contacting the surface of a filter member (grease filter).
However, in such a prior art, the dirt removed from the filter member enters between the flocked fibers of the brush, and in particular, the removed oil and fat penetrates between the flocked fibers and hardens. There is a possibility that the original sweeping action of the brush removed from the surface of the member may be reduced.
In addition, the fat and oil gradually accumulates between the flocked fibers with use, and in the worst case, the flocked fibers are bonded together by the fat and oil that has entered between the flocked fibers, causing clogging of the brush itself and sweeping. There was a risk that the taking action would be completely lost.
Therefore, in the prior art using a brush, it was necessary to periodically remove the cleaning brush itself to remove dirt such as oil and fat that entered between the flocked fibers.
In addition, removing fats and oils that have hardened by entering between flocked fibers requires not only a considerable amount of labor, but also cannot be removed and may cause a state that must be replaced with a new one. It was.

  Therefore, the present invention was devised in order to solve the above-mentioned problems, and is a range hood having a filter member cleaning function, which removes deposits from the filter member without using centrifugal force or water. It can be removed, can be continued for a long time without deteriorating the cleaning function, can be started to clean the filter member in conjunction with the stoppage of the blower, downstream of the exhaust An object of the present invention is to make it possible to remove dirt adhering to the filter surface facing the side while pushing it out toward the filter surface facing the exhaust upstream side.

In order to solve the above-mentioned problem, in the present invention, a range hood in which a filter member is disposed in an exhaust air passage extending from a suction port for sucking and capturing contaminated air during cooking to a discharge port for exhausting contaminated air to the outside Because
A filter cleaning device rotatably provided with the filter member is disposed in the exhaust air passage so as to partition the exhaust upstream side and the exhaust downstream side, and the filter cleaning device is formed in a disc shape. Driving means for driving and rotating the filter member; and adhering substance removing means for removing the adhering substance adhering to the filter member by pressing in a linear or planar manner along the filter surface of the rotating filter member. The drive means is composed of a motor and a power transmission mechanism that transmits the power of the motor to the filter member.

  Here, the power transmission mechanism includes a first gear attached to the output shaft of the motor and a second gear provided along the outer periphery of the filter member and meshing with the first gear. It is preferable to adopt a configuration such as

Further, the deposit removing means is disposed on a radial straight line of the filter member extending from the vicinity of the rotation center of the filter member to the outer periphery thereof, or on an oblique straight line with respect to the radial straight line. The adhering matter removing means is formed at least in the length from the vicinity of the rotation center of the filter member to the outer periphery thereof, and press-contacts linearly or planarly along the filter surface of the filter member 1 Or a plurality of deposit removing members and a support member that supports the deposit removing member, and either one or both of the deposit removing member and the support member are biased toward the filter member. This is preferable.
Further, the deposit removing member is formed in a substantially flat plate shape, and the deposit removing member can be detachably mounted with a sheet material made of a material excellent in the action of absorbing oil and fat and moisture. It is preferable to adopt such a configuration that the filter member is formed, and that the filter member is subjected to a hydrophilic or water-repellent surface treatment.

  Further, the adhering substance removing means is disposed along the filter surface facing the exhaust upstream side of the exhaust air passage with the filter member interposed therebetween, and along the filter surface facing the exhaust downstream side of the exhaust air passage. The filter receiving member is disposed, and the filter receiving member is formed in a cylindrical shape or a columnar shape having a length from the vicinity of the rotation center portion of the filter member to the outer periphery thereof, to the filter surface. The filter member rotates with the driving rotation of the filter member by contact, and the filter receiving member is formed when the outer peripheral portion that contacts at least the filter surface is formed of an elastic material and rotates with the driving rotation of the filter member. It is preferable to adopt a configuration such as elastic entry into the air vent of the contaminated air.

  Further, the filter cleaning device includes a unit case that rotatably supports and accommodates the filter member, and the unit case has a vent opening for contaminated air in which an opening center portion is substantially coincident with a rotation center portion of the filter member. An attachment portion of the deposit removing means extending from the center of the opening to the periphery of the opening circle, and the support member extends from the center of the opening to the periphery of the opening circle. It can be rotated on the axis, and is attached to the mounting portion in a state of being urged and rotated toward the filter member, and the support member is rotated in a rotational direction against the urging rotational direction by driving rotation of the filter member. The support member is provided with a contact portion that contacts the distal end side of the deposit removing member when rotating and removes the deposit from the distal end side. A rotational movement convex portion that protrudes toward the filter member side, and the rotational movement convex portion rides on the rotational circumference of the filter member facing the rotational movement convex portion by driving rotation of the filter member. It is preferable to employ a configuration such as a rotation starting convex portion that repeatedly rotates the support member in a rotation direction that resists the biasing rotation direction.

  Further, it is preferable that the filter member is subjected to a hydrophilic or water-repellent surface treatment.

  Further, it is preferable to include an interlocking operation control device that operates the filter cleaning device (drives and rotates the filter member) when the operation of the blower that generates (propagates) suction force that sucks and captures contaminated air is stopped. Therefore, in this case, it is preferable to drive and rotate the filter member for a preset time after the operation of the blower is stopped.

According to such a configuration, dirt such as oil and dirt separated and recovered from contaminated air and adhering to the filter member is linearly or planarly contacted with the filter surface of the filter member driven and rotated by the motor. It is removed by the adhered matter removing means, and the filter surface is cleaned.
At this time, the drive rotation of the filter member is performed from the first gear rotated by the motor via the second gear provided along the outer periphery of the filter member. Further, when the deposit removing means is disposed on an oblique line parallel to the filter surface with respect to the radial straight line of the filter member extending from the rotation center of the filter member to the outer peripheral edge thereof, the filter surface The dirt removed from the filter member is collected on one side of the deposit removing means on either the rotation center side or the outer peripheral edge side of the filter member by driving rotation of the filter member. In particular, the dirt removed by the deposit removing means can be efficiently removed from the filter surface while preventing the dirt from reattaching to the filter surface by being gathered together on one side of the deposit removing means on the outer peripheral edge side of the filter member. In addition, it can be removed reliably.

Further, for example, by adopting a deposit removing means having a configuration in which a plurality of deposit removing members are provided in the support member in parallel with the rotation direction of the filter member, a cleaning effect (cleaning effect) for removing dirt on the filter surface is adopted. ) Is improved.
In addition, when the deposit removing member is formed in a substantially flat plate shape, for example, the tip side pressed against the filter surface is formed in a tapered substantially spatula shape, dirt such as oil and fat adhering to stick to the filter surface. This is effective because it can be removed by scraping off the dirt with a spatula. And, when the deposit removal member is formed so that it can be detachably mounted with a sheet material made of a material excellent in absorbing oil and moisture, remove the dirt from the filter surface so that it can be wiped off. Can do.

In addition, deformation such as bending of the filter member toward the exhaust downstream side by the deposit removing means disposed in pressure contact with the filter surface of the filter member on the exhaust upstream side of the exhaust air passage is a filter disposed on the exhaust downstream side. It is suppressed by the receiving member.
Further, when the filter receiving member rotates together with the drive rotation of the filter member, the outer peripheral portion of the filter receiving member elastically enters the vent or the exhaust of the exhaust air passage in which the deposit removing means is disposed By flicking elastically to the upstream side, dirt such as oil and fat adhering to the filter surface on the exhaust downstream side by flowing from the filter surface side facing the exhaust upstream side to the filter surface side facing the exhaust downstream side, etc. Can be pushed out from the vent of the filter member to the filter surface side upstream of the exhaust. Thereby, the dirt pushed out to the filter surface side on the upstream side of the exhaust gas can be removed by the deposit removing means that is pressed along the filter surface.

  In addition, the support member is rotated against the urging rotation direction in the filter member direction by driving rotation of the filter member, and is removed from the filter surface and adhered to the deposit removing member. By adopting a configuration in which the deposit removal member is removed by removing the deposit from the deposit removal member, the deposit removal member is brought into pressure contact with the filter surface in a state where the deposit is not attached (deposited) on the deposit removal member. Thus, the cleaning for removing dirt from the filter surface can be continued. For example, in the case where the rotation starting convex portion is provided at one place on the rotation circumference of the filter member, the deposit is removed from the filter surface and adhered to the deposit removal member each time the filter member rotates once. It is possible to continue the cleaning for removing dirt from the filter surface by bringing the clean adhered material removing member without the adhered material into pressure contact with the filter surface again.

  In addition, the hydrophilic or water-repellent surface treatment is applied to the filter member to prevent accumulation of dirt, etc., and the dirt is easy to remove. Can do.

  Also, by adopting a configuration in which the filter member is automatically driven and rotated when cooking is finished and the operation of the blower is stopped, the oil and fat separated and recovered from the contaminated air is removed immediately after adhering to the filter surface. be able to. That is, the oil and fat collected and collected on the filter member can be removed from the filter surface before being cured so as to stick to the filter surface.

According to the range hood of the present invention, dirt such as adhering matter is removed from the filter surface of the filter member that is driven and rotated without using a centrifugal force or water or the like by rotating the filter member at a high speed. It can be removed by the adhering substance removing means pressed in a shape.
This makes it possible to prevent the product from rising due to the use of an expensive motor, such as rotating at high speed, and to suppress the occurrence of corrosion due to continuous exposure to moisture, and also to suppress adverse effects on the wall surface of the chicken. be able to.

  In addition, as a deposit removing means for removing dirt from the filter surface, a substantially spatula-shaped deposit removing member is used, and a sheet material made of a material excellent in oil and fat absorption and moisture absorption can be detachably attached. The use of a kimono removing member is effective in removing dirt such as oil and fat from the filter surface, and also filters out dirt in a state close to the user's act of wiping off dirt using a towel or the like. Can be removed from the surface.

Also, during the driving rotation of the filter member (during cleaning of the filter surface), the cleaning that removes dirt from the filter surface is continued while removing the adhering matter removed from the filter surface and adhering to the tip side of the adhering matter removing member. Can do.
Thereby, long-term use is possible without deteriorating the cleaning function. That is, it is possible to reduce troubles such as maintenance for the user.

Further, since the cleaning of the filter member can be started in conjunction with the stop of the operation of the blower, in particular, the oil and fat immediately after being separated and recovered from the contaminated air such as waste gas and oily smoke can be removed from the filter surface. In other words, the oil and fat can be removed before being cured so as to stick to the filter surface.
Thereby, the removal efficiency of fats and oils is good, and also the shortening of the cleaning time can be achieved and an energy saving effect can be expected.

It is a vertical side view which shows the range hood which concerns on this embodiment. The principal part (installation part of a filter cleaning apparatus) of the same range hood is shown, (a) is sectional drawing which expands and shows the whole filter cleaning apparatus, (b) further expands that part further It is sectional drawing shown. It is the III-III sectional view taken on the line of (b) of FIG. It is a disassembled perspective view of the filter cleaning apparatus which concerns on this embodiment. It is a disassembled perspective view of the filter cleaning apparatus which shows the continuation of FIG. It is a disassembled perspective view of the deposit | attachment removal means which concerns on 1st Embodiment of the filter cleaning apparatus. The attached matter removing means in an assembled state is shown, (a) is the perspective view, (b) is an enlarged cross-sectional view taken along the line bb of (a), and (c) is another embodiment. It is the same expanded sectional view which shows a form. It is an expanded sectional view of the important section showing other embodiments of a filter receiving member. It is the IX-IX sectional view taken on the line of FIG. It is a block diagram which shows schematic structure of the interlocking operation control apparatus which starts the driving | operation of a filter cleaning apparatus in response to the operation stop of a fan. It is a block diagram which shows schematic structure of the range hood which concerns on this embodiment provided with the filter monitoring control apparatus which monitors the rotation angular velocity of a filter member. It is a flowchart which shows an example of the monitoring operation | movement of the rotational angular velocity of the filter member by a filter monitoring control apparatus. The deposit | attachment removal means which concerns on 2nd Embodiment is shown, (a) is a perspective view, (b) is the bb line expanded sectional view of (a). The deposit | attachment removal means which concerns on 3rd Embodiment is shown, (a) is a perspective view, (b) is the bb line expanded sectional view of (a). It is a perspective view when the attachment part of the same adhering substance removal means and the filter case to which this adhering substance removal means is attached are looked up from diagonally downward. The state which attached the said deposit | attachment removal means to the attachment part is shown, (a) is a bottom view of the filter case (filter cleaning apparatus) shown in the state which fractured | ruptured partially, (b) is an expansion of the principal part It is sectional drawing. It is a schematic explanatory view showing the movement of the deposit removal means accompanying the drive rotation of the filter member, (a) shows a state immediately before the dirt attached to the filter member is removed by the deposit removal member, (B) shows a state immediately before the support member starts rotating in the direction against the urging rotation direction with the pivoting portion as a fulcrum, when the rotation operation convex portion of the support member starts to climb over the rotation start convex portion of the filter member. (C) shows a state in which the continuous rotation operation convex portion climbs toward the top of the rotation starting convex portion, the rotation operation of the support member, and the rotation operation of the deposit removing member in the urging rotational direction. Shows the state immediately before the tip side of the deposit removing member starts to contact the contact portion of the mounting portion, and (d) rides toward the top of the rotation starting convex portion of the continuous rotational motion convex portion, Accompanying support member rotation, (E) shows a state where the tip portion of the deposit removing member to which dirt is attached is in contact with the contact portion by the rotation operation of the deposit removing member, Adherence removal by contact with the contact portion of the dirt adhering to the tip portion of the adhering substance removing member by the rotation operation of the support member and the rotating operation of the adhering substance removing member accompanying the climbing toward the top of the adhering material The state where the dirt adhering to the tip part of the member is scraped off is shown, and (f) shows the rotational motion convex part that has climbed over the top of the rotation starting convex part after the dirt is scraped off from the adhering substance removing member. Shows that the support member starts to rotate in the biasing rotation direction (direction returning to the state of “a”) along with starting to descend the rotation starting convex portion.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
FIG. 1 is a longitudinal sectional view showing a range hood according to this embodiment, and FIGS. 2 and 3 are sectional views showing an enlarged main part.
The range hood is roughly classified into two types, a thin type (flat type) in which the capture space is formed shallow and a deep type in which the capture space is formed deeply. As shown in FIG. 1, a thin type range hood will be described. In addition, in the thin type range hood, there are a vertical installation type in which the blower is installed vertically on the hood portion and a horizontal installation type in which the blower is installed horizontally. In the present embodiment, FIG. As shown in Fig. 4, a horizontal type range hood will be described.

≪Configuration of range hood≫
The range hood A is configured to suck and collect oily smoke, steam (steam), hot air, and waste gas G generated during cooking, and exhaust it outside through an exhaust duct (not shown).
As shown in FIG. 1, the range hood A is a thin (flat) hood portion 1 having a capture space M that opens downward, a blower 2 installed on the hood portion 1, and a capture space M. And a current plate 3 attached to the downward opening.

  In this way, the thin range hood A in which the blower 2 is installed on the hood portion 1 is installed and installed in the kitchen by a known installation structure. For example, as shown in FIG. 1, a blower box 2a, which will be described later of the blower 2, is attached to a kitchen wall K by screwing or the like using an L-shaped hanging bracket 4, and is directly above a heating cooker (not shown). Located in place.

The hood portion 1 is formed in a flat box shape that opens downward, and the oil panel 5 is attached to the inside of the opening, so that a downward recessed trapping space M having a desired depth is provided inside the opening. Yes.
The oil panel 5 is provided with a dent bulging upward leaving the peripheral edge, and the peripheral edge is formed to be attached to the inner side of the opening of the hood portion 1 by using a fixing means such as spot welding or screwing. Has been.
Thus, the depth is within the thickness (height) of the hood part 1 and is located on the kitchen side (left side of FIG. 1 paper) from the back side (right side of FIG. 1 paper) of the hood part 1 butted against the kitchen wall K. A capture space M whose depth gradually increases toward the front side of the hood portion 1 is formed inside the opening of the hood portion 1.

  Further, the hood unit 1 includes a blower installation unit 6 that is in communication with the capture space M at a part of the top plate 1a located on the back side where the blower 2 is installed, and is higher than the top plate 1a. A space in which the motor 16a of the driving means 16 constituting the cleaning device B can be installed is secured between the capture space M and the blower box 2a. That is, as shown in FIG. 1, a filter cleaning device B that communicates with the capture space M and is attached to the oil panel 5 can be incorporated in the hood portion 1.

As shown in FIG. 1, the blower 2 has a fan casing 2 b installed in a horizontally placed state inside a blower box 2 a formed in a substantially square box shape with an open bottom surface.
The fan casing 2b is formed in a volute shape having a discharge port 7 to which an exhaust duct is connected, and accommodates an exhaust fan 2d that is pivotally supported by the fan motor 2c and accommodated coaxially.

  The rectifying plate 3 is formed in a flat plate shape that is smaller than the opening shape of the downward opening of the capture space M, and is attached to the capture space M so that it can be opened / closed / detached. As a result, as shown in FIG. 1, the intake port 8 for the contaminated air G is secured between the peripheral edges of the current plate 3 and the opening peripheral edge of the capture space M, so that the contaminated air G flows into the current plate 3. The air is sucked (collected) vigorously into the capture space M from the suction port 8.

Moreover, the range hood A is provided with the switch operation part 9 in the front part which is the cooker side of the food | hood part 1, as shown in FIG.
This switch operation part 9 consists of a touch, a push type, etc. which perform operation, such as switching operation start and operation stop of the blower 2 and filter cleaning device B, and operation (strong / medium / weak) switching of the blower 2. Switches (not shown) are provided.

And the filter cleaning apparatus B which comprises the filter member 11 rotatably is arrange | positioned in the exhaust air path 10 from the suction inlet 8 of the range hood A comprised in this way to the discharge outlet 7. As shown in FIG.
As a result, when the contaminated air G sucked and captured from the suction port 8 into the capture space M is discharged through the exhaust air passage 10 and flows into the suction port 7 side, it is separated and recovered from the contaminated air and is collected in the filter member 11. It is configured such that dirt (attachment) such as attached oil and fat or dust can be removed by scraping the filter member 11 by driving and rotating the filter member 11.

≪Configuration of filter member≫
The filter member 11 includes a known cut bend type, a punching metal type, and a mesh type formed of a lath net, etc. In this embodiment, as shown in FIG. It is formed in a disk shape having an appropriate outer diameter.
That is, as shown in FIG. 3 and FIG. 5 to be described later, the filter member 11 includes innumerable vent holes 11-1 communicating with the filter surfaces 11a and 11b facing the exhaust upstream side and the exhaust downstream side of the exhaust air passage 10. The rotation center portion is formed so as to be rotatably supported and accommodated between the filter case 15 to be described later by the filter cleaning device B by the rotation member 12, the rotation support shaft member 13, and the upper and lower stop members 14.

  Further, the filter member 11 has a hydrophilic or water-repellent surface treatment applied to the filter surfaces 11a and 11b. Accordingly, accumulation of dirt and the like is prevented, and dirt can be quickly and easily removed from the filter surface 11a by the deposit removing members 17a and 17b described later of the filter cleaning device B.

≪Configuration of filter cleaning device≫
4 and 5 are exploded perspective views showing the filter cleaning device including the deposit removing means according to the first embodiment. Here, it demonstrates, referring suitably FIGS. 1-3.
In the directionality of the filter case 15 shown in FIG. 4 and FIG. 5, the diagonally downward right side of the paper is the front side (cooker side) of the range hood A, and the diagonally upward left side of the paper is the rear side of the range hood A (kitchen wall K side). ) And the left and right sides of the range hood A are the left and right sides of the range hood A.

The filter cleaning device B includes the filter member 11 so as to be rotatable, and removes dirt such as oil and fat and dust that adheres to and accumulates on the filter surface 11a of the filter member 11 with use so as to scrape off the filter surface 11a. The filter surface 11a is cleaned.
As shown in FIGS. 2, 4 and 5, the filter cleaning device B includes a filter case 15 that rotatably supports and accommodates the filter member 11, and a drive unit that drives and rotates the filter member 11 at a predetermined rotational angular velocity. 16, a deposit removing means 17 that presses in a linear or planar manner along the filter surface 11 a of the filter member 11 facing the exhaust upstream side of the exhaust air passage 10, and a surface on the exhaust downstream side of the exhaust air passage 10. And a filter receiving member 18 disposed along the filter surface 11b of the filter member 11 to be configured.

≪Filter case configuration≫
The filter case 15 is made of a steel plate or other non-combustible material, and is formed into a substantially quadrangular shape in a bottom view having each side dimension larger than the outer diameter of the filter member 11, and is divided into two vertically divided case portions 15a. , 15b.
Of the upper and lower case portions 15a and 15b, the upper case portion 15a includes, as shown in FIG. 4, mounting pieces 19-1 that extend outward toward the front side edge portions on both side edge portions, respectively. I have. On the other hand, as shown in FIG. 5, the lower case portion 15 b includes an attachment latch piece portion 19-2 bent outward along the rear edge portion.
As a result, the filter case 15 can be freely engaged with and disengaged from the oil panel 5 by screwing the both attachment pieces 19-1 closer to the front side and hooking the attachment pieces 19-2 on the rear side to the oil panel 5. It is formed so that it may be attached to. That is, the filter cleaning device B including the filter member 11 is disposed in the exhaust air passage 10 of the range hood A so as to partition the exhaust upstream side and the exhaust downstream side in an appropriately removable state.

  The upper and lower case portions 15a and 15b are respectively provided with ventilation openings 20a and 20b that are opened with the center of the opening being substantially coincident with the rotation center of the filter member 11, and one of the ventilation openings 20a and 20a. The attachment portions 21a and 21b of the deposit removing means 17 are provided in the part so as to reach from the opening center to the periphery of the opening circle.

  The upper and lower ventilation openings 20a and 20b are respectively provided in circular shapes in the upper and lower case parts 15a and 15b with an opening diameter slightly smaller than the diameter of the filter member 11. Thereby, the contaminated air G sucked and captured in the capture space M from the suction port 8 passes through the filter member 11 that is positioned between the upper and lower case portions 15a and 15b and rotatably supported and is discharged downstream. It is sucked into the mouth 7 and flows.

The upper and lower attachment portions 21a and 21b are directed from the part of the opening circumferential edge of the ventilation openings 20a and 20b (circular circumferential edge located on the rear edge side of the lower case portion 15a) to the vicinity of the opening center. It is formed in a protruding shape such as a substantially chevron shape or an approximately isosceles triangle shape that is inward in a bottom view. The upper and lower attachment portions 21a and 21b are provided with shaft support holes 22a and 22b of the upper and lower stopper members 14 that are coaxial with the line of the opening center portion of the vent openings 20a and 20b, respectively.
As a result, as shown in FIG. 2, the rotating member 12 attached to the center of rotation of the filter member 11 by screwing is rotated in the shaft support holes 22a and 22b respectively provided in the upper and lower attaching portions 21a and 21b. The filter member is attached by the support shaft member 13 and the upper and lower stopper members 14 so that the upper and lower ventilation openings 20a and 20b are exposed (facing) except for the upper and lower attachment portions 21a and 21b. 11 can be rotatably supported and accommodated between the upper and lower case portions 15a and 15b.
In addition, although illustration is abbreviate | omitted, the protrusion shape toward the vicinity of the opening center part from a part of opening circle periphery of ventilation opening part 20a, 20b of upper and lower attachment part 21a, 21b is substantially rectangular shapes etc. It may be a shape or the like.

Moreover, as shown in FIG. 5, the attachment opening part 23 of the deposit | attachment removal means 17 is opened by the attachment part 21b of the lower case part 15b among the upper and lower attachment parts 21a and 21b.
The attachment opening 23 is opened in a substantially long hole shape from the inward projecting end side of the lower attachment portion 21b toward the rear edge side of the lower case portion 15b.

A clamping piece member 24 made of a spring material is provided along the short side opening edge of the mounting opening 23 on the inwardly protruding end side of the mounting portion 21b of the lower case portion 15b.
As a result, as shown in FIG. 2, the retaining groove 43 provided on the one short side frame side of the support member 17 c to be described later is attached to the other short side opening edge of the attachment opening 23. In the state of being fitted and latched to the support member 17c, the retaining recesses 44 provided on the other short side frame side of the support member 17c are resiliently latched to the sandwiching piece member 24, thereby removing deposits. With the support member 17c of the means 17 and first and second attached matter removing members 17a and 17b to be described later facing the upper and lower case portions 15a and 15b, the attached matter removing means 17 is attached to the lower mounting portion. 21b is detachably attached.

  Further, as shown in FIG. 5, the lower case portion 15b includes a tray attachment portion 25-1. The tray attaching portion 25-1 is formed to be bent on both sides of the attachment opening 23 located on the rear edge side of the lower case portion 15b so as to face each other at a predetermined interval. Receiving) The rear side of 25 is designed to be freely inserted and removed.

  Further, the lower case portion 15b is provided with a current plate support portion 26 as shown in FIG. The rectifying plate support portion 26 is suspended from the lower case portion 15b in a hook shape, and is formed to support the detachable rear edge portion of the rectifying plate 3 so that the rectifying plate 3 can be engaged and disengaged. ing.

On the other hand, a window hole 27 is provided at one corner of the upper case portion 15a as shown in FIG. The window hole 27 is opened to be slightly larger than the outer diameter of the first gear 31 of the power transmission mechanism 16 b described later constituting the driving means 16.
Thus, the first gear 31 fixed to the output shaft 30 is attached to the upper and lower case portions 15a in a state where a motor 16a, which will be described later, constituting the driving means 16 is attached to the outside (exhaust downstream side) of the upper case portion 15a. , 15b so that they can be inherent. That is, the first gear 31 is set to the second gear 32 described later on the power transmission mechanism 16b provided along the outer periphery of the filter member 11 rotatably supported and accommodated between the upper and lower case portions 15a and 15b. It can be meshed.

Further, the upper case portion 15a includes gear support members 28 at several places along the circumference of the opening periphery of the ventilation opening 20a. The gear support member 28 includes a gripping portion that supports the outer periphery of the ring of the second gear 32 formed with a ring diameter along the outer periphery of the filter member 11 so as to grip from the outside.
As a result, the upper case portion 15a is formed so as to be able to rotatably support the second gear 32 with the opening center portion of the ventilation openings 20a and 20b as the rotation support shaft portion.
Although not shown, the gear support member 28 is provided with a highly lubricious member made of a synthetic resin material or the like inside the grip portion so that the second gear 32 can be rotated with good slipperiness. It can be held.

≪Configuration of drive means≫
The drive means 16 for driving and rotating the filter member 11 rotatably supported and accommodated between the upper and lower case portions 15a and 15b formed in this way has a motor 16a and the power of the motor 16a to the filter member 11. And a power transmission mechanism 16b for transmission.
The motor 16 a is installed on the upper case portion 15 a side via the motor support base 29.
The motor support base 29 is formed in a substantially bowl shape, and is screwed and installed on the corner portion outside (exhaust downstream side) of the upper case portion 15 a located on the opening center line of the window hole 27. Thus, the output shaft 30 of the motor 6a is made to protrude downward from the window hole 27 between the upper and lower case portions 15a and 15b.

In this way, the motor 16a installed in the upper case portion 15a is electrically connected to a filter cleaning switch (not shown) provided in the switch operation portion 9 of the hood portion 1.
As a result, the filter cleaning switch is activated by an ON operation of the filter cleaning switch, and the filter member 11 is driven to rotate through the power transmission mechanism 16b and stopped by an OFF operation. That is, the filter cleaning device B starts and stops operation by an ON / OFF operation of the filter cleaning switch of the switch operation unit 9.

The power transmission mechanism 16b serves to reduce the rotational angular velocity of the motor 16a to an optimum rotational angular velocity for driving and rotating the filter member 11 when the filter member 11 is cleaned.
The power transmission mechanism 16 b includes a first gear 31 attached to the output shaft 30 of the motor 16 a and a second gear 32 attached along the outer periphery of the filter member 11.
The first gear 31 is a pinion gear (small gear) having a predetermined outer diameter, and is fixed to the output shaft 30 of the motor 16a so as not to rotate.

  The second gear 32 is a rack gear (large gear) engraved on the outer periphery of the ring member formed with a ring diameter corresponding to the outer diameter of the filter member 11, and the ring member is disposed on the outer periphery of the filter member 11. By being attached by screwing or the like, it is provided along the outer periphery.

Further, the outer periphery of the ring member on which the second gear 32 is formed is provided with an outer peripheral edge of the ring that protrudes with a larger outer diameter except for the outer peripheral portion on which the second gear 32 is formed. ing.
As a result, the outer peripheral edge of the ring is gripped with respect to the gripping portions of the gear support members 28 at several locations around the ring so that the filter member 11 can be rotated within the filter case 15 and the rotary support shaft member 13 can be rotated as a fulcrum. It can be supported and accommodated. That is, the filter member 11 is rotatably supported and accommodated in the filter case 15 so as to be driven and rotated by the power of the motor 16a.

≪Configuration of deposit removing means according to the first embodiment≫
FIG. 6 is an exploded perspective view showing the deposit removing means according to the first embodiment, and FIG. 7 is a perspective view and a sectional view of the assembled state.
The adhering portion removing means 17 removes dirt such as oil and fat adhering to the filter surface 11a facing the exhaust upstream side of the exhaust air passage 10 under the drive rotation of the filter member 11 from the filter surface 11a. It is removed as if it is scraped off.
The adhering matter removing means 17 includes a first adhering matter removing member 17a and a second adhering member 17a which are arranged along the filter surface 11a of the filter member 11 so as to be pressed into a linear or planar shape with an appropriate elastic force. A deposit removing member 17b, a support member 17c for supporting the first and second deposit removing members 17a and 17b in a state of being constantly biased in the direction of the filter surface 11a, and an exhaust downstream side of the exhaust air passage 10 And a filter receiving member 18 disposed along the filter surface 11b of the filter member 11 facing the surface.

≪Configuration of first and second deposit removal member≫
The first and second deposit removing members 17a and 17b are supported by the support member 17c in parallel with the rotation direction of the filter member 11, and dirt attached to the filter surface 11a when the filter member 11 is cleaned. It serves to remove the filter surface 11a so as to be scraped off in cooperation.

The first deposit removing member 17a is formed in a substantially flat plate shape having a predetermined width with a length corresponding to the radius of the filter member 11 using a nonflammable material having appropriate elasticity.
More specifically, the first deposit removing member 17a has a rear end side 17a-2 (diagonally downward right side in FIG. 6) as the rotation shaft support portion 33, and the front end side 17a-1 from the rotation shaft support portion 33. It is formed in a substantially spatula shape in a cross-sectional view having a tapering shape (left side obliquely upward in FIG. 6).
The first deposit removing member 17 a includes the rotation shaft portions 34 at both ends of the rotation shaft support portion 33.
As a result, the first deposit removing member 17a is wound around the support shaft 17 in a state of being wound around the rotating shaft portion 34, as shown in FIG. 7B. The tip side 17a-1 having a substantially spatula shape is rotatably attached to and supported by the support member 17c in a state in which it is constantly urged in the direction of the filter surface 11a of the filter member 11.

On the other hand, the second deposit removing member 17b is formed in a columnar shape having a vertically long cross section by using the same material as the first deposit removing member 17a and having substantially the same length as the first deposit removing member 17a. ing.
As shown in FIGS. 6 and 7, the columnar front end side 17b-1 pressed against the filter surface 11a of the filter member 11 has a substantially semicircular shape, and the columnar rear end side 17b-2 is supported by the support member 17c. Locking projections 36 extending in the longitudinal direction are provided on both sides of the central portion in the longitudinal direction.
As a result, as shown in FIG. 7B, the second adhering matter removing member 17b engages the locking convex portion 36 with the slide hole portion 37, which will be described later, in a loosely fitting manner. As a result, it is attached to and supported by the support member 17c so as to be movable in the direction of the filter surface 11a.

Further, as shown in FIG. 6 and FIG. 7B, the second deposit removing member 17b has spring mounting recesses 38 on both sides in the longitudinal direction on the end surface of the rear end side 17b-2 supported by the support member 17c. It has.
As a result, the second deposit removing member 17b is in a state in which the distal end side 17b-1 is constantly urged in the direction of the filter surface 11a of the filter member 11 by the spring material 39 whose one end is fixed to the spring mounting recess 38. The support member 17c is mounted and supported so as to be movable (slidable).

[Description of Other Embodiment of Second Deposit Removal Member]
Further, as shown in FIG. 7C, the second deposit removing member 17b can attach the sheet material 40 made of a material excellent in oil and moisture absorption action to the distal end side 17b-1. Is formed.
The sheet material 40 has a length that reaches substantially the entire length in the longitudinal direction of the second deposit removing member 17b, and is located in the middle of the height direction (the vertical direction in the drawing in FIG. 7C) from the leading end side 17b-1. It is formed in a substantially band shape having a width that wraps around the distal end side 17b-1 of the second adhering matter removing member 17b over a wide range.
The sheet material 40 is formed so as to be detachably attached to the second deposit removing member 17b by a stopper 41.

The stopper 41 is formed from a material having moderate flexibility, a material having moderate elasticity, and the like in a ring shape along the cross-sectional shape of the deposit removing member 17b and a band shape in which ends can be fastened. .
Accordingly, the sheet material 40 can be attached to the second deposit removing member 17b so as to be detachable and replaceable. That is, when a large amount of oil and fat, water, or the like penetrates and the dirt is severe, the sheet material 40 can be removed from the second deposit removing member 17b and washed or replaced with a new one. It has become.

≪Configuration of support member≫
The support member 17c is formed in a substantially rectangular frame shape in a bottom view having a size substantially the same as the mounting opening 23 of the lower case portion 15b, using a non-combustible material having appropriate rigidity. .
And this support member 17c is provided with the latching groove | channel 43 which has the latching edge part 42 in the one side short side frame side, and is equipped with the latching recessed part 44 on the other side short side frame side, As described above, it is formed to be detachably attached to the attachment opening 23.
Thus, without removing the filter cleaning device B from the range hood A, only the support member 17c is removed, and the first and second attached matter removing members 17a and 17b including the support member 17c are washed in a sink or the like. be able to.

  Further, as shown in FIGS. 6 and 7, the support member 17 c includes a substantially U-shaped pivoting portion 45 on the inner side located at a substantially central portion of the short side frames on both sides. Thereby, the support member 17c can rotate the rotating shaft support part 33 of the 1st deposit | attachment removal member 17a, and the spring material 35 always makes the front end side 17a-1 which exhibits a substantially spatula shape in the filter surface 11a direction. It is formed so that the first deposit removing member 17a can be supported in the biased state.

Further, as shown in FIG. 7, the support member 17c has one long side from the position where the first deposit removal member 17a is rotatably supported (the spring material 35 of the first deposit removal member 17a). A concave groove 46 for supporting the second deposit removing member 17b so as to be movable in the direction of the filter surface 11a is provided on the rotation direction side that opposes the biasing rotation direction.
The concave groove 46 is formed to have a predetermined depth with a concave groove shape substantially matched with the length shape and the width shape of the second deposit removing member 17b, and both in the central portion in the length direction. The groove wall is provided with the locking hole portion 37, and as described above, the rear end side 17b-2 is attached to and supported by the support member 17c in a state in which the second deposit removing member 17b can be moved in the direction of the filter surface 11a. It has come to be.

  The deposit removing means 17 according to the first embodiment configured as described above is provided between the short side frames on both sides of the support member 17c formed in a substantially rectangular frame shape in a bottom view. 1 is formed in such a manner that the two adhering substance removing members 17a and 17b are urged in the direction of the filter surface 11a of the filter member 11 and are juxtaposed in the rotational direction of the filter member 11. As shown in FIG. 2, the engaging groove 43 provided in the support member 17c is fitted into the lower side opening edge of the lower case portion 15b of the engaging groove 23, and is held by the holding piece member 24. Thus, it is attached to the attachment portion 21b of the lower case portion 15b so as to be freely detachable.

≪Configuration of filter receiving member≫
The filter receiving member 18 is in contact with the filter surface 11 b of the filter member 11 facing the exhaust downstream side of the exhaust air passage 10, and the first and second attachment removing means 17 along the radial direction thereof. The filter member 11 is pushed by the deposit removing members 17a and 17b to prevent deformation such as bending to the exhaust downstream side, and dirt adhering to the filter surface 11b facing the exhaust downstream side passes through the filter member 11. It functions to push out from the pore 11-1 to the filter surface 11a side facing the exhaust upstream side.

As shown in FIGS. 1 to 4, the filter receiving member 18 is formed in a rectangular column shape (block shape) having substantially the same length as the lengths of the first and second deposit removing members 17 a and 17 b. Has been. The filter receiving member 18 includes screw attachment holes 47 on both sides in the length direction, and is attached to the inside of the upper case portion 15b with screws using a set screw 48 as shown in FIGS. It is formed as follows.
Thereby, as shown in FIG. 3, the filter receiving member 18 sandwiches the filter member 11, and the filter member 11 on the exhaust upstream side where the first and second adhering matter removing members 17a and 17b are disposed. The filter surface 11a is disposed along the filter surface 11b of the filter member 11 on the exhaust downstream side on the opposite side (back surface side).

[Description of Other Embodiments of Filter Receiving Member]
FIG. 8 and FIG. 9 are enlarged cross-sectional views of a main part showing another embodiment of the filter receiving member.
Further, as shown in FIGS. 8 and 9, the filter receiving member 18-1 according to the present embodiment has an outer peripheral portion that is in contact with the filter surface 11 b made of an elastic material, and rotates with the driving rotation of the filter member 11. Sometimes, the filter member 11 is formed so as to elastically enter the vent hole 11-1.
That is, the filter receiving member 18-1 includes a cylindrical rotating core member 49, and a cylinder formed on the outer periphery thereof with an appropriate outer peripheral diameter (diameter) using an elastic material such as an elastic rubber material or an elastic urethane material. The outer peripheral body 50 is attached.
As shown in FIGS. 8 and 9, the filter receiving member 18-1 is formed so as to be rotatably attached to the inner side of the upper case portion 15 b of the filter case 15 by a bracket 51.
As a result, as shown in FIG. 9, the filter receiving member 18-1 rotates with the driving rotation of the filter member 11 by the contact of the filter member 11 with the filter surface 11 b side.

As shown in FIG. 9, the filter receiving member 18-1 formed in this way includes a back side of the filter surface 11 a on the exhaust upstream side to which the tip side 17 a-1 of the first deposit removal member 17 a is pressed, That is, on the filter surface 11b on the exhaust downstream side, the filter member 11 is disposed behind the pressure contact position on the distal end side 17a-1 of the first deposit removal member 17a in the rotation direction X.
As a result, the filter receiving member 18-1 rotates with the driving rotation of the filter member 11, and at the same time, the outer peripheral portion in contact with the filter surface 11b is elastic to the vent hole 11-1 of the filter member 11 as shown in FIG. By entering, the dirt that flows into the filter surface 11b side from the filter surface 11a side and adheres is pushed out from the vent 11-1 of the filter member 11 to the filter surface 11a side.
That is, the dirt adhering to the filter surface 11b before the pressure contact position of the filter surface 11a to which the distal end side 17a-1 of the deposit removing member 17a is pressed is filtered by the filter receiving member 18-1 to the vent 11. -1 to the filter surface 11a side, and can be removed by the first and second adhering matter removing members 17a and 17b of the adhering matter removing means 17 that is pressed along the filter surface 11a.

[Description of operation]
Next, the range hood A to which the filter cleaning device B including the deposit removing means 17 according to the first embodiment is applied will be briefly described.
After cooking is finished and the user operates the operation switch unit 9 to stop the operation of the blower 2, when the filter cleaning switch of the operation switch unit 9 is turned ON, the motor 16a of the filter cleaning device B is activated, The power output from the motor 16a is transmitted to the filter member 11 via the first gear 31 and the second gear 32, the filter member 11 is driven to rotate at a predetermined rotational angular velocity, and the filter cleaning device B is operated. Start.
When the filter member 11 is driven to rotate, dirt such as oil and fat and dust separated from the polluted air G during cooking and collected and collected on the filter surface 11a facing the upstream side of the exhaust is pressed along the filter surface 11a. The first deposit removing member 17a and the second deposit removing member 17b are removed from the filter surface 11a. For example, in the case of the first adhering substance removing member 17a, the dirt is removed from the filter surface 11a by scraping the dirt on the tip side 17a-1 having a substantially spatula shape. In the case of the second deposit removing member 17b, dirt remaining without being removed by the first deposit removing member 17a is removed so as to be scraped off from the filter surface 11a.
In this way, the dirt removed from the filter surface 10a by the first deposit removing member 17a and the second deposit removing member 17b falls on the lower oil tray 25 and is collected.

When the filter cleaning device B is operated for a certain period of time, the motor 16a is stopped by the operation of turning off the filter cleaning switch of the operation switch 9 by the user, and the operation of the filter cleaning device B is stopped.
The operation time of the filter cleaning device B is performed according to a predetermined set time. When the set time elapses, the motor 16a is stopped and the operation can be automatically stopped.

[Description of Other Embodiments]
In the present embodiment, when the operation of the blower 2 is stopped by the operation of the switch operation unit 9 (the fan motor 2c is stopped), the interlock operation control device 52 that drives and rotates the filter member 11 in conjunction with the operation stop. It has.
That is, when cooking is finished and the user stops the operation of the blower 2 by turning off the blower operation switch (not shown) of the switch operation unit 9 of the hood unit 1, the filter member 11 is linked in advance to the filter member 11 in advance. The driving rotation is performed at a predetermined set time T.
FIG. 10 is a block diagram illustrating a schematic configuration of an interlocking operation control device that starts the operation of the filter cleaning device in conjunction with the operation stop of the blower.

  When the user operates the switch operating unit 9 to stop the operation of the blower 2, the interlocking operation control device 52 starts (activates) the motor 16 a of the filter cleaning device B in conjunction with the stop of the operation. A microcomputer 100 is provided that starts the operation of the cleaning device B and stops the operation of the filter cleaning device B by stopping the motor 16a after a set time T has elapsed from the start of the operation of the filter cleaning device B.

  The microcomputer 100 operates in conjunction with operation control means 101 that operates the motor 16a of the filter cleaning device B in conjunction with the operation of the blower 2 and stops the motor 16a when the set time T has elapsed. When the motor 16a is started by the control means 101, a timer means 102 that starts operation and counts a predetermined set time T, and each of these functions are incorporated.

  The operation control unit 101 activates the motor 16a of the filter cleaning device B when the operation of the blower 2 is stopped (the fan motor 2c is stopped) by the user's operation of the switch operation unit 9, and the timer unit 102 performs filter cleaning. When the operation time (set time T) of the device B is counted, the motor 16a is stopped.

  The timer means 102 is configured to start operation when the motor 16a of the filter cleaning device B is activated by the operation control means 102 and to start counting a predetermined set time T.

[Description of operation]
According to the range hood A according to this embodiment in which the interlocking operation control device 52 configured as described above is provided in the filter cleaning device B, cooking is finished and the blower 2 is operated by the operation of the switch operation unit 9 by the user. When the operation is stopped, the motor 16a of the filter cleaning device B is activated to drive and rotate the filter member 11. As in the above-described embodiment, dirt such as oil and fat and dust collected and collected on the filter surface 11a is filtered. It is removed from the filter surface 11a by the first deposit removing member 17a and the second deposit removing member 17b of the deposit removing means 17, which are in pressure contact with each other along the surface 11a.

[Description of Other Embodiments]
Moreover, in this embodiment, the control apparatus which reversely rotates the drive rotation of the filter member 11 is provided. Specifically, a filter monitoring control device 53 that detects the rotational angular velocity of the filter member 11 and reversely rotates the drive rotation of the filter member 11 is provided.
FIG. 11 is a block diagram showing a schematic configuration of a filter monitoring control device that monitors the rotational angular velocity of the filter member.

  The filter monitoring control device 53 is removed from the filter surface 11a of the filter member 11 according to the result of the sensor 54 for detecting the rotational angular velocity of the filter member 11 and the rotational angular velocity value detected by the sensor 54. 2 determines the degree of adhesion and accumulation of dirt on the distal end sides 17a-1 and 17b-1 of the two adhering substance removing members 17a and 17b, the degree of adhesion and accumulation on the filter surface 11a, and the like and determines that dirt is attached and accumulated. And a microcomputer 200 that reversely rotates the motor 16a of the filter cleaning device B.

  The sensor 54 is disposed on the output shaft 30 so as to detect, for example, the rotational angular velocity of the output shaft 30 of the motor 16a during cleaning by driving and rotating the filter member 11.

  In addition to the output shaft 30 of the motor 16a, for example, the rotation support shaft member 13 that rotatably supports the rotation center portion of the filter member 11 in the filter case 15 is used as the detection of the rotational angular velocity of the filter member 11 by the sensor 54. It can also be directly detected by the filter surfaces 11a and 11b.

As shown in FIG. 11, the microcomputer 200 includes a determination unit 201 that compares a detected rotational angular velocity value ω _t detected by the sensor 54 with a predetermined rotational angular velocity value ω _0, and the determination unit. When it is determined by 201 that the detected rotational angular velocity value ω _t is smaller than the set rotational angular velocity value ω ₀ , when a set time T for rotating the filter member 11 in the reverse direction by rotating the motor 16a of the filter cleaning device B reversely has elapsed. Each of the reverse rotation operation control means 202 that stops the motor 16a and the timer means 203 that starts the operation and counts the set time T when the filter member 11 starts the reverse rotation operation by the reverse rotation operation control means 202. Built-in function.
The sensor 54, the determination unit 201, the reverse operation control unit 202, and the timer unit 203 are set so as to function during operation of the filter cleaning device B.

The determination unit 201 compares the detected rotational angular velocity value ω _t output from the sensor 54 with a preset rotational angular velocity value ω _0, and the detected rotational angular velocity value ω _t is determined from the set rotational angular velocity value ω ₀ . Is smaller, it is determined that dirt is deposited on the tip sides 17a-1, 17b-1 of the first and second adhered matter removing members 17a, 17b and dirt is deposited on the filter member 11, and the filter A motor reverse rotation signal that reversely rotates the motor 16 a of the cleaning device B is output to the reverse rotation operation control means 202.

  The reverse rotation control means 202 reversely rotates the motor 16a based on the motor reverse rotation signal output from the determination means 201, and reverse rotation of the motor 16a based on the count signal (motor stop signal) output from the timer means 203. Is configured to stop.

  The timer unit 203 starts its operation when the motor 16a of the filter cleaning device B rotates reversely by the reverse rotation operation control unit 202 and the filter member 11 starts reverse rotation operation. The timer unit 203 starts a predetermined set time T (for example, 3 to 5).

[Description of operation]
Next, the range hood A according to this embodiment to which the filter cleaning device B including the filter monitoring control device 53 configured as described above is applied will be described.
FIG. 12 is a flowchart illustrating an example of the monitoring operation of the rotational angular velocity of the filter member by the filter monitoring control device.
During operation of the filter cleaning device B, the rotational angular velocity of the output shaft 30 of the motor 16a that drives and rotates the filter member 11 is detected by the sensor 54, and the detected rotational angular velocity value ω _t and the set rotational angular velocity value ω ₀ are determined by the determination means 201. The comparison is sequentially executed by the filter monitoring control device 53.
Specifically, the filter member 11 is driven and rotated by the motor 16a, and the first and second deposit removing members 17a and 17b of the deposit removing means 17 are pressed against the filter surface 11a. During cleaning of the filter member 11 that removes dirt from 11a, the rotational angular velocity of the output shaft 30 of the motor 16a is detected by the sensor 54 (step 55), and the detected rotational angular velocity value ω _t is output to the determination means 201. The When the detected rotational angular velocity value ω _t is input to the determining unit 201, a determination is made to compare the detected rotational angular velocity value ω _t by the determining unit 201 with the set rotational angular velocity value ω ₀ (step 56).

If the determination means 201 determines that the detected rotational angular velocity value ω _t is smaller than the set rotational angular velocity value ω ₀ (determined as YES) (step 56), the first and second deposit removal members 17a and the second It is determined that the dirt removed from the filter surface 11a has adhered to and accumulated on the deposit removing member 17b (step 57), and an operation start signal is output to the reverse rotation control means 202.
The reverse operation control means 202 reversely rotates the motor 16a of the filter cleaning device B when the operation start signal is input from the determination means 201. That is, the drive rotation of the filter member 11 is reversed. At this time, if it is determined that the detected rotational angular velocity value ω _t is not smaller than the set rotational angular velocity value ω ₀ (determined as NO), the process returns to step 55.

  When the drive rotation of the filter member 11 starts reverse rotation due to the reverse rotation of the motor 16a, the timer means 203 starts its operation and counts the set time T for reverse rotation that reversely rotates the filter member 11 (step 58). ).

The timer means 203 counts the set time T for the reverse rotation operation of the filter member 11, and when the set time T is reached, the timer means 203 outputs an operation stop signal to the reverse rotation operation control means 202. The reverse operation control means 202 stops the reverse rotation of the motor 16a of the filter cleaning device B when the reverse operation stop signal is input from the timer means 203.
At this time, the degree of adhesion and accumulation of dirt on the first and second attached matter removing members 17a and 17b due to the reverse rotation of the filter member 11 is not improved, and an operation start signal is output from the determination unit 201 to the reverse operation control unit 202. Then, even when the set time T of the reverse rotation operation of the filter member 11 by the timer means 203 is counted, the motor 16a continues to reversely rotate the drive rotation of the filter member 11 without stopping.

Thus, according to the range hood A according to this embodiment to which the filter cleaning device B including the filter monitoring control device 53 is applied, the rotational angular velocity of the filter member 11 when removing dirt from the filter surface 11a is detected. Then, since the drive rotation of the filter member 11 can be automatically reversely rotated according to the detection result, the filter member 11 is removed from the filter surface 11a and moved to the front end sides 17a-1 and 17b-1 of the deposit removing members 17a and 17b. Dirt, foreign matter, and the like deposited and accumulated can be removed from the tip ends 17a-1 and 17b-1.
Thereby, use can be continued over a long period of time, without deteriorating the cleaning function which removes dirt from filter surface 11a. That is, it is possible to reduce troubles such as maintenance for the user.
In addition, an excessive load on the motor 16a for driving and rotating the filter member 11 can be suppressed, and a short-term failure of the motor 16a due to the excessive load can be prevented. That is, it is possible to expect an effect that the service life of the motor 16a can be extended.

≪Configuration of deposit removing means according to the second embodiment≫
Next, the deposit removal means 60 according to the second embodiment will be described.
FIG. 13 is a perspective view and a cross-sectional view showing the deposit removal means according to the second embodiment.
In addition, the deposit removing means 60 according to the second embodiment includes a first deposit removing member 60a and a second deposit removing member 60b as shown in FIGS. 13 (a) and 13 (b). A method of changing the form and pressing the front end sides 60a-1 and 60b-1 of the first deposit removing member 60a and the second deposit removing member 60b against the filter surface 11a of the filter member 11, respectively. As described above, a configuration is adopted in which the spring material 61 is elastically mounted between the first and second deposit removal members 60a and 60b. Since the other components are basically the same as those in the first embodiment, the same reference numerals are given, and redundant description is omitted.

That is, as shown in FIG. 13B, the first deposit removing member 60a is secondly rotated from the rear end side pivot shaft support portion 62 in a state of being rotatably supported in the support member 60c. The adhering matter removing member 60b is provided with a spring receiving arm side portion 63 extending in a direction in which the adhering matter removing member 60b is movably incorporated.
The spring receiving side 63 is provided with a spring mounting recess 64 to which the other end side of the spring material 61 is fixed at a position facing a later-described spring mounting recess 65 provided on the second deposit removing member 60b side. Yes.

  On the other hand, the second deposit removal member 60b has a shape formed by separating the distal end side 60b-1 on both sides in the width direction and further forming the separated portion in a substantially spatula shape. Then, the second deposit removing member 60b is attached to a spring of the second deposit removing member 17b described in detail in the first embodiment on both longitudinal sides of the end surface on the rear end side supported by the support member 60c. The same spring mounting recess 65 as the recess 38 is provided.

  The support member 60c has basically the same structure (shape) as the support member 17c described in detail in the first embodiment.

According to the second deposit removal means 60 formed in this way, the filter on the tip side 60a-1 of the first deposit removal member 60a and the tip side 60b-1 of the second deposit removal member 60b. The pressure contact with respect to the filter surface 11a of the member 11 can be maintained in the same state. That is, the front end sides 60a-1 and 60b-1 are brought into pressure contact with the filter surface 11a of the filter member 11 with a uniform (even) spring pressure.
In addition, the tip side 60b-1 of the second deposit removal member 60b is substantially the same spatula shape as the tip side 60a-1 of the first deposit removal member 60a, so that the first deposit removal member 60a. It is possible to remove the dirt such as oil and fat remaining on the filter surface 11a after the dirt is scraped off.

≪Configuration of deposit removing means according to the third embodiment≫
Next, the deposit removal means 70 according to the third embodiment will be described.
FIG. 14 is a perspective view and a cross-sectional view showing the deposit removal means according to the third embodiment, and FIG. 15 is a perspective view showing a state of attachment of the lower case portion to the attachment portion of the deposit removal means. FIG. 16 is a plan view showing the attached state and a sectional view showing an enlarged main part.
The deposit removing means 70 according to the third embodiment changes the form of the first deposit removing member 70a as shown in FIG. 14 (b), and further changes the configuration shown in FIG. 16 (b). As shown, a configuration is adopted in which the support member 70c is rotatably mounted on the attachment portion 21b side of the filter case 15. Since the other components are basically the same as those in the first and second embodiments, the same reference numerals are given, and redundant description is omitted.

  That is, as shown in FIG. 14B, the first deposit removing member 70a is formed in a substantially spatula-shaped front end side 70a from the rotating shaft support 72 on the rear end side 70a-2 formed in a cylindrical shape. -1 is formed.

And the support member 70c is equipped with the rotation pivoting convex part 73 in the both sides short side located in the one side long side side where the 2nd deposit removal member 70b is mounted | worn so that a movement is possible.
Thereby, as shown in FIG. 15, the supporting member 70c is rotated and supported on both sides of the mounting opening 23 of the lower case 15b at the side of the short side opening on the one side long side opening edge side. The lower case is rotatable between the portions 74 and the other long side on which the first deposit removing member 70a is mounted is always urged toward the filter member 11 by the spring material 75. The mounting portion 21b of the portion 15 is mounted.
That is, as shown in FIG. 16 (b), the support member 70c is always urged in the direction opposite to the rotation urging direction by the spring material 76 of the first deposit removing member 70a, The other long side on which the first deposit removal member 70a is mounted is rotatable with respect to the edge surface of the other long side opening edge of the mounting opening 23 by rotation about the pivot P of the attachment It is attached to the attachment portion 21b so as to be in a state of a solid line and a state of a two-dot chain line.

Further, as shown in FIGS. 15 and 16, the support member 70 c includes a rotational movement convex portion 77 that protrudes in the direction of the filter member 11 on one short side located on the outer peripheral side of the filter member 11. ing.
The rotation operation convex portion 77 rides on a rotation activation convex portion 78 described later provided on the filter member 11 side under the driving rotation of the filter member 11, so that the support member 70 c uses the pivoting portion P as a fulcrum. It is formed on one side end side of the support member 7c so as to rotate against the rotation biasing direction by the spring material 75.

  The rotation starting convex portion 78 is provided in one or several places on the outer periphery of the filter member 11 attached to the second gear 32, in the example shown in the figure, in a substantially chevron shape, and the filter member 11 rotates once. Every time it is done, it is repeated that the turning projection 77 of the support member 70c rides up.

  Further, when the rotation operation convex portion 77 of the support member 70c rides on the rotation activation convex portion 78 and the support member 70c rotates in a direction against the rotation biasing direction with the pivoting portion P as a fulcrum ( 16 (b), the tip side 70a-1 of the first deposit removal member 70a is brought into contact, and dirt (attachment) adhered to the tip side 70a-1 is removed. A contact portion 79 to be dropped is provided along the other side long side opening edge of the attachment opening portion 23.

The contact portion 79 is opposed to the one side long side opening edge of the mounting opening 23 that is pivotally mounted so that the support member 70c can rotate and is urged to rotate in the direction of the filter member 11 by the spring material 75. The other side long side opening edge of the opposite side is bent and formed.
As a result, the rotational motion convex portion 77 of the support member 70c moves away from the filter surface 11a by the rotational motion of the support member 70c against the rotational urging direction with the shaft support portion P as a fulcrum when riding on the rotation start convex portion 78. The tip side 70a-1 of the first deposit removal member 70a is brought into contact with the rotation of the deposit removal member 70a in the rotational biasing direction, and the deposit attached to the tip side 70a-1 is wiped off. It is configured as follows.

[Description of action]
Next, the range hood B according to the present embodiment to which the filter cleaning device B including the third deposit removing means 70 configured as described above is applied will be briefly described.
FIG. 17 is a schematic explanatory view showing the movement of the third deposit removal means 70 accompanying the drive rotation of the filter member.
First, as described in detail in the above-described embodiment, dirt (attachments) such as oil and fat collected from the contaminated air G and attached to the filter surface 11a during one rotation of the filter member 11 that rotates is driven. Further, as shown in FIGS. 17A and 17B, the tip side 70a-1 of the first deposit removing member 70a pressed against the filter member 11 (filter surface 11a) by the spring material 76 is scraped. As shown in FIG. 17 (c), it is deposited and deposited on the tip side 70a-1 of the first deposit removal member 70a.

Then, due to the drive rotation of the filter member 11, the rotation starting convex portion 78 provided on the outer periphery thereof has been moved from the position of the two-dot chain line to the position of the solid line as shown in FIG. It approaches the rotational movement convex portion 77 of the support member 70c. Then, as shown in FIG. 17B, the rotation operation convex portion 77 starts to ride on the rotation activation convex portion 78.
When the rotational movement convex portion 77 starts to ride on the rotation starting convex portion 78, the support member 70c resists the rotational biasing direction with the shaft support portion P as a fulcrum, as shown in FIGS. The operation of gradually rotating in the direction of the rotating operation is started. Then, the operation of gradually separating the distal end side 70a-1 of the first deposit removing member 70a that has been in pressure contact with the filter member 11 (filter surface 11a) from the filter member 11 is started.
When the distal end side 70a-1 is separated from the filter member 11, the first adhering matter removing member 70a starts to rotate in the direction of the rotation biased by the spring material 76 as shown in FIG. It contacts the contact portion 79 that exists in the urging direction.

Further, as shown in (d) and (e) of FIG. 17, the further continuation of the rotational movement convex portion 77 on the rotational activation convex portion 78 approaches the top of the rotational activation convex portion 78, and the shaft support portion. Due to the further rotation of the support member 70c against the rotational biasing direction with P as a fulcrum, the dirt that has adhered and accumulated on the tip side 70a-1 of the first deposit removal member 70a is in contact with the contact portion 79. Is removed from the front end side 70a-1.
As shown in FIG. 17 (f), the dirt (adhered matter) wiped off from the front end side 70a-1 falls and is collected on the lower oil tray 25.
Thereafter, the above operation is repeated for each rotation of the filter member 11 that rotates. That is, during the driving rotation of the filter member 11 (during the cleaning of the filter surface 11a), the filter member 11 is removed from the filter surface 11a every rotation and moved to the distal end side 70a-1 of the first deposit removal member 70a. Cleaning that removes dirt from the filter surface 11a can be continued while the attached deposits are removed.

The specific configuration of the embodiment of the present invention is not limited to each of the above-described embodiments, and there are design changes and the like without departing from the spirit of the present invention described in claims 1 to 16. However, it is included in the present invention.
For example, the power transmission mechanism 16b constituting the driving means 16 is attached to a small-diameter pulley on the output shaft 30 of the motor 16a, a large-diameter pulley is attached to the outer periphery of the filter member 11, and a V belt or timing belt is attached to both pulleys. Can be constructed by winding the chain around, or by attaching a small-diameter sprocket and a large-diameter sprocket, and winding the chain around both sprockets.
Moreover, the motor 16a can be provided with a reduction gear mechanism.

  Further, the adhering matter removing means 17, 60, 70 is on an oblique line parallel to the filter member 11 (filter surface 11a) with respect to the radial straight line of the filter member 11 extending from the rotation center of the filter member 11 to the outer periphery thereof. It can arrange | position and arrange | position.

  In addition, the rotation start projection 78 that causes the support member 70 a to rotate by the climbing of the rotation operation convex portion 77 is provided on the filter member 11 at two locations on the diagonal line passing through the center of the filter member 11. It can be arranged at several places.

Further, the reversal of the driving rotation of the filter member 11 can be set so as to reverse the rotation speed for a predetermined time or for a predetermined time after cleaning of the filter surfaces 11a and 11b for removing dirt. Further, during the cleaning of the filter surfaces 11a and 11b, it can be set to reverse one to several times or a predetermined time alternately with the drive rotation (forward rotation) of the filter member 11.
Further, the switch operating unit 9 can be provided with a filter reversing switch, and the filter member 11 can be set to reverse at a predetermined rotational speed or for a predetermined time by an ON operation by the user.

A range hood B filter cleaning device 1 hood part 2 blower 7 discharge port 8 suction port 10 exhaust air passage 11 filter member 11a, 11b filter surface 11-1 vent hole 15 filter case 15a upper case part 15b lower case part 16 drive Means 16a Motor 16b Power transmission mechanism 17, 60, 70 Deposit removal means 17a, 60a, 70a First deposit removal member 17b, 60b, 70b Second deposit removal member 17c, 60c, 70c Support member 21a, 21b Mounting portion 23 Mounting opening 30 Output shaft (motor)
31 First gear 32 Second gear 52 Interlocking operation control device 53 Filter monitoring control device (control device)
77 Rotating motion convex part 78 Rotating start convex part 79 Contact part G Contaminated air

Claims (14)

A range hood in which a filter member is disposed in an exhaust air passage leading from a suction port that sucks and captures contaminated air during cooking to a discharge port that exhausts contaminated air to the outside,
A filter cleaning device that rotatably includes the filter member is disposed in the exhaust air passage so as to partition the exhaust upstream side and the exhaust downstream side,
The filter cleaning device includes a driving means for driving and rotating the filter member formed in a disk shape,
An adhering matter removing means for removing the adhering matter adhering to the filter member by pressing in a linear or planar manner along the filter surface of the filter member;
The driving means includes a motor,
A range hood comprising: a power transmission mechanism that transmits power of the motor to the filter member. The power transmission mechanism includes a first gear rotated by the motor;
The range hood according to claim 1, further comprising a second gear provided along the outer periphery of the filter member and meshing with the first gear.   The adhering matter removing means is disposed on a radial straight line of the filter member extending from the vicinity of the rotation center of the filter member to the outer periphery thereof or on an oblique line with respect to the radial straight line. The range hood according to claim 1 or 2, wherein The adhering matter removing means is formed to have a length from the vicinity of the rotation center of the filter member to the outer periphery thereof, and is press-contacted linearly or planarly along the filter surface of the filter member. A deposit removing member,
A support member that supports the deposit removal member,
The range hood according to any one of claims 1 to 3, wherein either one or both of the adhering matter removing member and the support member are urged toward the filter member.   The range hood according to claim 4, wherein the deposit removing member is formed in a substantially flat plate shape.   The range hood according to claim 4, wherein the deposit removing member is formed so that a sheet material made of a material excellent in absorbing oil and moisture can be detachably attached thereto.   The adhering material removing means is disposed along the filter surface facing the exhaust upstream side of the exhaust air passage with the filter member interposed therebetween, and the filter is arranged along the filter surface facing the exhaust downstream side of the exhaust air passage. The range hood according to claim 1, further comprising a receiving member.   The filter receiving member is formed in a cylindrical shape or a columnar shape having a length from the vicinity of the rotation center portion of the filter member to the outer periphery thereof, and rotates with driving rotation of the filter member by contact with the filter surface. The range hood according to claim 7.   The filter receiving member is formed of an elastic material at least at an outer peripheral portion that contacts the filter surface, and is elastic to a polluted air vent provided in the filter member when the filter receiving member rotates together with the driving rotation of the filter member. The range hood according to claim 7 or 8, wherein the range hood is inserted. The filter cleaning device includes a unit case that rotatably supports and accommodates the filter member,
The unit case includes a ventilation air ventilation opening having an opening center portion substantially coincident with the rotation center portion of the filter member, and the attachment case extends from the opening center portion to the periphery of the opening circle. Comprising a mounting portion for kimono removing means;
The support member is rotatable about an axis parallel to the filter surface, and attached to the attachment portion in a state of being biased and rotated toward the filter member side,
Contact for removing the deposit from the deposit removing member by bringing the deposit removing member into contact with the support member when the support member rotates in a rotation direction against the biasing rotation direction by driving the filter member. The range hood according to any one of claims 4 to 9, wherein a portion is provided in the attachment portion. The support member includes a rotational movement convex portion that protrudes toward the filter member side,
On the rotation circumference of the filter member facing the rotation operation convex portion, the rotation operation convex portion rides on the rotation circumference of the filter member by the drive rotation of the filter member, and rotates the support member in the rotation direction against the biasing rotation direction. The range hood according to any one of claims 4 to 10, further comprising a rotation starting convex portion that repeats the above.   The range hood according to any one of claims 1 to 11, wherein the filter member is subjected to a hydrophilic or water-repellent surface treatment.   The system according to any one of claims 1 to 12, further comprising an interlocking operation control device that starts the operation of the filter cleaning device when the operation of the blower that generates a suction force for sucking and capturing the contaminated air is stopped. The range hood described in 1.   The range hood according to any one of claims 1 to 13, further comprising a control device for reversing the drive rotation of the filter member.

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