Oil fume purification device

Abstract

To provide an oil smoke cleaner which can clean oil smoke on a restaurant floor over a long term and inhibit oil smoke from spreading in a wide range.SOLUTION: An oil smoke cleaner 1 includes: a housing 10 having an intake port for taking air into the cleaner 1 at an upper part and having an exhaust port 16C for exhausting air at a lower part; a blower 30 disposed in the housing; an exhaust passage 40 through which airflow generated by the blower passes; a disc-like oil collection filter 50 disposed at the upstream of the blower and having a hole; and a motor 60 to which the oil collection filter is detachably attached and which rotates the oil collection filter at high speed.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a greasy smoke purification device. [Background technology]

[0002] In restaurants, cooking using cooking equipment can generate large amounts of oily smoke. The oily smoke that cannot be captured by the exhaust system installed in the restaurant kitchen reaches the dining area and causes discomfort to customers.

[0003] In this regard, for example, Patent Document 1 below discloses that air is purified using an air purifier. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-364891 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the exhaust devices disclosed in the above-mentioned prior art documents, the filters become clogged in a short period of time, making it difficult to purify oily smoke over a long period of time.

[0006] Furthermore, in the exhaust devices disclosed in the above-mentioned prior art documents, the exhaust is discharged from above the device, and therefore, when used in an oil smoke purification device, the oil smoke may spread over a wide area, causing discomfort to customers.

[0007] The present invention has been invented to solve the above-mentioned problems, and aims to provide an oily smoke purification device that can purify oily smoke on restaurant floors over a long period of time and prevent the oily smoke from spreading over a wide area. [Means for solving the problem]

[0008] To achieve the above object, the oil smoke purifying device of the present invention is an oil smoke purifying device to be installed on the floor of a restaurant. The oil smoke purifying device includes a housing having an upper inlet for taking in exhaust air flowing from a kitchen of the restaurant onto the floor and a lower outlet for discharging air toward the floor, a blower installed within the housing, an exhaust passage through which the airflow generated by the blower passes, a disk-shaped oil collection filter having holes and installed upstream of the blower, a motor to which the oil collection filter is detachably attached and which rotates the oil collection filter at high speed, and an air purification filter installed downstream of the blower and functioning as a speed reduction mechanism for slowing down the airflow generated by the blower. [Effects of the Invention]

[0009] With the oil smoke purifying device configured as described above, the motor rotates the oil collection filter at high speed, allowing oil to be effectively collected from the exhaust air flowing from the restaurant kitchen onto the floor and from the exhaust air generated by cooking at customer tables. Because the oil collection filter is resistant to clogging, it can effectively collect oil smoke on the restaurant floor for a long period of time. Furthermore, because exhaust is emitted from below the device, it is possible to prevent oil smoke from spreading over a wide area. From the above, it is possible to provide an oil smoke purifying device that can purify oil smoke on the restaurant floor for a long period of time and prevent oil smoke from spreading over a wide area. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a perspective view showing an oily smoke purification device according to an embodiment of the present invention. [Figure 2] 1 is a plan view showing an oily smoke purification device according to an embodiment of the present invention. FIG. [Figure 3] 1 is a front view showing an oily smoke purification device according to an embodiment of the present invention. FIG. [Figure 4] FIG. 2 is a rear view showing the oily smoke purification device according to the present embodiment. [Figure 5] FIG. 2 is a bottom view showing the oily smoke purification device according to the present embodiment. [Figure 6] FIG. 6 is a cross-sectional view taken along line 6-6 in FIG. 3. [Figure 7] FIG. 7 is an enlarged view of part A in FIG. 6. [Figure 8] FIG. 2 is a perspective view showing the oily smoke cleaning device when the right side panel is omitted. [Figure 9] FIG. 2 is a perspective view showing the oily smoke purification device when the straightening plate is open. [Figure 10] FIG. 2 is a front view showing the oily smoke cleaning device when the straightening plate and front panel are omitted. [Figure 11] FIG. 2 is a perspective view showing the oily smoke cleaning device when the right side panel is omitted. [Figure 12] FIG. 4 is an exploded view for explaining the configuration of the oil recovery section. [Figure 13] FIG. 10 is a schematic diagram for explaining the configuration of a modified example of the oil recovery section. [Figure 14] FIG. 10 is a schematic diagram for explaining a modified example of the oil recovery section. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, an embodiment of the present invention will be described with reference to Figures 1 to 14. In the description of the drawings, the same elements are given the same reference numerals, and duplicate explanations will be omitted. Furthermore, the dimensional proportions in the drawings are exaggerated for the convenience of explanation, and may differ from the actual proportions.

[0012] FIG. 1 is a perspective view showing an oil smoke cleaning device 1 according to an embodiment of the present invention. FIG. 2 is a plan view showing the oil smoke cleaning device 1 according to the embodiment. FIG. 3 is a front view showing the oil smoke cleaning device 1 according to the embodiment. FIG. 4 is a rear view showing the oil smoke cleaning device 1 according to the embodiment. FIG. 5 is a bottom view showing the oil smoke cleaning device 1 according to the embodiment. FIG. 6 is a cross-sectional view taken along line 6-6 in FIG. 3. FIG. 7 is an enlarged view of part A in FIG. 6. FIG. 8 is a perspective view showing the oil smoke cleaning device 1 when the right side panel 12 is omitted. FIG. 9 is a perspective view showing the oil smoke cleaning device 1 when the rectifying plate 20 is opened. FIG. 10 is a front view showing the oil smoke cleaning device 1 when the rectifying plate 20 and the front panel 11 are omitted. FIG. 11 is a perspective view showing the oil smoke cleaning device 1 when the right side panel 12 is omitted. FIG. 12 is an exploded view illustrating the configuration of the oil recovery unit 70. FIG. 13 is a schematic view illustrating the configuration of a modified example of the oil recovery unit 70. FIG. 14 is a schematic diagram for explaining a modified example of the oil recovery section 70. In FIG.

[0013] In the following description, the left-right direction when viewed from the front side is referred to as the X direction, the depth direction of the oily smoke purification device 1 is referred to as the Y direction, and the vertical direction is referred to as the Z direction (see FIG. 1).

[0014] The oily smoke purification device 1 according to this embodiment is placed on a floor of a restaurant. Here, the floor of a restaurant refers to the space excluding the kitchen, including seating areas, stairs, entrances, and the like.

[0015] 1 to 14, the oil smoke purification device 1 according to this embodiment includes a housing 10 having intake ports (gaps 20A, 20D, 20E) for taking in air and an exhaust port 16C for discharging air, a straightening plate 20 provided on the side and top surfaces of the housing 10, a blower 30 disposed within the housing 10, an exhaust passage 40 through which the airflow generated by the blower 30 passes, an oil collection filter 50 disposed upstream of the blower 30, a motor 60 for rotating the oil collection filter 50 at high speed, an oil recovery section 70 for recovering oil collected by the oil collection filter 50, and an air purification filter (corresponding to a sound absorbing mechanism and a speed reducing mechanism) 80 disposed downstream of the blower 30. Each component will be described below.

[0016] <Case 10> As shown in Figures 1 to 5 and 8, the housing 10 has a front panel (corresponding to a decorative panel) 11 provided on the front side, a right side panel 12 provided on the right side when viewed from the front side, a left side panel 13 provided on the left side when viewed from the front side, a back panel 14 provided on the back side, a mounting portion 15 provided on the top surface, a bottom surface portion 16 provided on the bottom surface, a panel inclined portion 17 provided on the positive side of the front panel 11 in the Y direction, and an inner panel 18 provided inside the front panel 11, right side panel 12, left side panel 13, back panel 14, and bottom surface portion 16.

[0017] 6, the front panel 11 is provided at a position in the Z direction corresponding to the fan 30. By arranging the front panel 11 in this manner, the front panel 11 functions as a soundproofing panel, and can reduce the sound of the fan motor 32 of the fan 30 that is transmitted to the audience seats.

[0018] 1 and 3, the front panel 11 is configured to be lower in the Z direction than the right side panel 12 and the left side panel 13. A straightening plate 20 is disposed above the front panel 11 and between the right side panel 12 and the left side panel 13.

[0019] Between the front panel 11 and the right side panel 12 and between the front panel 11 and the left side panel 13, slits 11A are formed along the Z direction.

[0020] The slit portion 11A is configured to be continuous in the Z direction with the gap 20A formed along the Z direction between the rectifying plate 20 and the right side panel 12 and between the rectifying plate 20 and the left side panel 13. This configuration allows the gap 20A and the slit portion 11A to be cleaned continuously, making cleaning easy. In addition, the unified design improves the overall design of the housing 10.

[0021] If the slit portion 11A were not formed, the oil that had fallen through the gap 20A would spill out onto the front side, which would result in an unsightly appearance. In contrast, the oil smoke purification device 1 according to this embodiment has the slit portion 11A formed, so that the oil that had fallen through the gap 20A falls downward in the Z direction through the slit portion 11A without spilling out onto the front side. This prevents the appearance from becoming unsightly.

[0022] 2, a gap 20D is provided along the Y direction between the top surface of the rectifying plate 20 and the housing 10, and a gap 20E is provided along the X direction. Gap 20D is formed along the Y direction from the negative end face to the positive end face in the Y direction of the rectifying plate 20, and slit portions 14B are formed on both sides of the mounting portion 15, continuing from gap 20D. Gap 20E is a gap provided along the X direction, and is formed between the end of the top surface of the rectifying plate 20 on the positive side in the Y direction and the mounting portion 15.

[0023] The gaps 20A, 20D, and 20E function as intake ports for taking in air. Here, the widths of the gaps 20A, 20D, and 20E are, for example, 10 mm to 20 mm. By forming the intake ports using the gaps 20A, 20D, and 20E in this manner, the flow rate during intake can be increased, and oily smoke can be sucked in from a location that is a long distance away from the gap 20A on the negative side of the Y direction. This allows for more efficient oily smoke purification. Furthermore, because the gaps 20A, 20D, and 20E that function as intake ports have relatively small widths, the sound of the motor 60 that rotates the oil collection filter 50 can be prevented from leaking to the outside.

[0024] The gaps 20A, 20D, and 20E are set to a degree that prevents a person's fingers from reaching all the way in. With this configuration, a person's fingers will not come into contact with the oil collection filter 50, thereby ensuring safety.

[0025] Furthermore, the gap 20A functioning as an intake port is formed in the Z direction from the upper end of the straightening vane 20 to the lower end of the straightening vane 20. With this configuration, the gap 20A is formed long in the Z direction, so that the oily smoke can be sucked in along the vertical direction (the direction in which the oily smoke falls). Therefore, the efficiency of suction of the oily smoke can be improved.

[0026] When the oily smoke purification device 1 is placed in the seating area, the gap 20A is preferably located at a position higher than the height of the table in the seating area (for example, 70 cm). With this configuration, oily smoke can be captured before it comes into contact with the table.

[0027] 1, the right side panel 12 is provided with a grip portion 12A having a concave shape that can be gripped. Similarly, the left side panel 13 is provided with a grip portion (not shown) having a concave shape that can be gripped.

[0028] As shown in Fig. 4, a power plug 14A is provided on the rear panel 14. As shown in Fig. 4, slits 14B are formed between the rear panel 14 and the right side panel 12 and between the rear panel 14 and the left side panel 13.

[0029] Electrical equipment (not shown) is placed on the placing section 15. As shown in FIGS. 6 to 8, the placing section 15 is located higher than one end 20B on the lower side of the rectifying plate 20. With the oily smoke purification device 1 configured in this manner, if a liquid (e.g., a drink) is spilled on the placing section 15, the liquid will fall along the arrow in FIG. 6. However, since the electrical equipment is housed within the inner panel 18, it is possible to effectively prevent water from splashing onto the electrical equipment. Similarly, if a liquid is spilled on the top surface of the rectifying plate 20, it is possible to effectively prevent water from splashing onto the electrical equipment.

[0030] 9, the mounting portion 15 is configured to be freely opened and closed, and functions as a switch cover that covers the switch panel 15A. The switch panel 15A is a panel for instructing the operation of the oily smoke purification device 1, and is provided with, for example, an operation switch, an air volume switch, a timer switch, a lighting switch, etc.

[0031] As shown in FIG. 5, the underside 16 has a lower main body 16A and a ventilation cover 16B. The ventilation cover 16B is fixed to the lower main body 16A. The ventilation cover 16B is made of, for example, punched metal. As shown in FIG. 5, the ventilation cover 16B has numerous exhaust ports 16C for discharging air. The exhaust ports 16C are formed to discharge air toward the floor. With this configuration, air is discharged toward the floor through the exhaust ports 16C, which can prevent smoke from spreading and can prevent the discharged air from hitting customers and causing discomfort. Furthermore, because the exhaust ports 16C are provided on the underside 16 of the housing 10, it can prevent the discharged air from hitting customers' feet and causing discomfort to customers.

[0032] 8 and 11, the panel inclined portion 17 is provided so as to be inclined upward in the Z direction along the positive side in the Y direction. By providing the panel inclined portion 17 in this manner, air entering through the gap 20A (particularly air entering from the lower region of the gap 20A) can be guided toward the oil collection filter 50 (see the arrows in FIGS. 8 and 11).

[0033] The inner panel 18 is configured to have a hollow L-shape, as shown in Fig. 8. Inside the inner panel 18, a blower 30, an air purification filter 80, etc. are provided.

[0034] Legs 90 are fixed to the bottom of the housing 10. The legs 90 consist of four legs. By providing the legs 90 on the bottom of the housing 10 in this way, it is possible to ensure space between the floor surface and the bottom surface 16 of the housing 10, and air can be suitably exhausted from the bottom surface 16. In addition, cleaning the floor surface is easier because it is less likely to come into contact with the housing 10.

[0035] <Current plate 20> The rectifying plate 20 is provided above the front panel 11, between the right side panel 12 and the left side panel 13. As shown in FIG. 9, the rectifying plate 20 is configured to be approximately L-shaped when viewed from the side. As shown in FIG. 9, the rectifying plate 20 is rotatably attached to the inner panel 18. When the rectifying plate 20 is closed, gaps 20A serving as suction ports are formed between the rectifying plate 20 and the right side panel 12 and between the rectifying plate 20 and the left side panel 13. The rectifying plate 20 is rotatable until it abuts against the mounting portion 15. A gap 20C is formed between the rectifying plate 20 and the front panel 11. The gap 20C functions as a clearance to prevent interference with the front panel 11 when the rectifying plate 20 is rotated.

[0036] As shown in FIG. 1, the straightening plate 20 can be opened and closed by inserting a finger into the gap 20A serving as an intake port between the straightening plate 20 and the right side panel 12 and between the straightening plate 20 and the left side panel 13 and rotating it.

[0037] When the rectifying vane 20 is closed, it comes into contact with a proximity sensor S (see FIG. 9) provided above the front panel 11. At this time, operation of the fan motor 32 and the motor 60 is permitted. On the other hand, when the rectifying vane 20 is opened, it moves away from the proximity sensor S. At this time, operation of the fan motor 32 and the motor 60 is stopped.

[0038] 6 to 8, the top surface of the rectifying plate 20 is disposed so as to intersect with the XY plane (horizontal plane) when the rectifying plate 20 is closed. This configuration can prevent customers from placing cups or the like on the rectifying plate 20.

[0039] <Blower 30> 6, 8, 10, and 11, the blower 30 is disposed in the housing 10. The blower 30 includes a fan 31, a fan motor 32, and a casing 33.

[0040] The blower 30 sucks in exhaust air containing oily smoke generated in the kitchen through the gaps 20A, 20D, and 20E, takes it in through the oil collection filter 50, and discharges it from the exhaust port 16C on the underside 16 of the housing 10 (see the white arrow in Figure 6).

[0041] 6, the center of gravity G of the fan motor 32 is located below the center part P1 in the Z-direction height of the housing 10. With this configuration, the fan motor 32, which is a heavy object, is located below the center part P1 in the Z-direction height of the housing 10, so the center of gravity of the oil smoke purification device 1 is stable and it is less likely to tip over.

[0042] 6, the blower 30 is arranged so that the intake 30A of the blower 30 faces the rear side (positive side in the Y direction) of the housing 10. With this configuration, the intake 30A of the blower 30 is blocked by the rear panel 14 of the housing 10. Therefore, the sound of the fan motor 32 is less likely to be transmitted from the intake 30A of the blower 30 to the seating area, thereby improving the comfort of the seating area.

[0043] 8, the fan 30 is provided below the gap 20A in the Z direction. As described above, the front panel 11 is provided at a position corresponding to the fan 30 in the Z direction.

[0044] <Exhaust passage 40> The exhaust passage 40 is passed through by the airflow generated by the blower 30. As shown in Fig. 6, the exhaust passage 40 has a first exhaust passage 41 provided below the oil collection filter 50 in the Z direction, and a second exhaust passage 42 provided between the outside of the blower 30 and the exhaust port 16C of the lower surface portion 16.

[0045] <Oil collection filter 50> As shown in FIG. 6, the oil collection filter 50 is provided above the blower 30. The oil collection filter 50 is detachably attached to the shaft of the motor 60. The oil collection filter 50 is a disk with holes that rotates at high speed to collect oil from the exhaust air containing oily smoke generated in the kitchen. The diameter of the holes provided in the oil collection filter 50 is, for example, 0.75 to 5 mm. The shape of the holes is not limited to a circle, and may be a triangle, a square, a regular polygon, or other shape.

[0046] As shown in FIGS. 12 and 13, the oil collection filter 50 has a ventilation region 51 having holes and a peripheral edge 52 provided on the outer periphery of the ventilation region 51.

[0047] 6 to 12, the ventilation region 51 is disposed so as to be perpendicular to the XY plane. In other words, the ventilation region 51 is disposed along the Z direction.

[0048] Here, for example, if the oil collection filter 50 is positioned so that the ventilation area 51 is on the XY plane, the falling direction of the droplets will coincide with the direction in which the holes in the ventilation area 51 penetrate, and the gravity of the droplets will all act in the direction in which the droplets pass through the holes. This makes it easier for the droplets to pass through the holes, so there is a risk that the droplets will get on the motor 60 when a drink is spilled from a cup.

[0049] In contrast, in the oil smoke purification device 1 according to this embodiment, the ventilation area 51 is arranged along the Z direction, and therefore the direction in which the droplets fall and the direction in which the holes in the ventilation area 51 penetrate are perpendicular to each other. Therefore, even if a drink is spilled from a cup, droplets can be effectively prevented from getting on the motor 60.

[0050] In this embodiment, the ventilation area 51 is disposed perpendicular to the XY plane, but the ventilation area 51 may be disposed so as to intersect with the XY plane. Furthermore, a configuration in which the ventilation area 51 is disposed along the XY plane is also included in the present invention.

[0051] 13, the peripheral edge 52 is bent relative to the ventilation region 51. Specifically, the peripheral edge 52 is bent toward the negative side in the Y direction relative to the ventilation region 51. By bending the peripheral edge 52 in this manner, the oil collected in the ventilation region 51 is caused by centrifugal force to fly toward the oil guard 71 provided on the negative side in the Y direction.

[0052] <Motor 60> The motor 60 rotates the oil collection filter 50 at high speed. The speed at which the motor 60 rotates the oil collection filter 50 at high speed is preferably, for example, 230 rpm (Rotations Per Minute) or higher. As shown in Fig. 13, the oil collection filter 50 is detachably attached to the motor 60 by a one-touch attachment / detachment mechanism 60A.

[0053] <Oil recovery section 70> The oil recovery section 70 recovers the oil trapped by the oil collection filter 50. As shown in FIGS. 12 and 13, the oil recovery section 70 has an oil guard 71, an oil panel 72, and an oil tray 73.

[0054] 12, the oil guard 71 is disposed on the negative side in the Y direction of the oil collection filter 50. The oil guard 71 is disposed on the negative side in the Y direction of the oil panel 72, as shown in FIG.

[0055] The oil guard 71 is integrated with the oil panel 72 to form an oil pan 75 that receives the oil collected by the oil collection filter 50 , and the oil received by the oil pan 75 is transferred to the oil tray 73 .

[0056] A handle 71A is attached to the top of the oil guard 71, and the oil guard 71 can be removed by grasping the handle 71A and pulling it from the negative side in the Y direction to the positive side in the Z direction.

[0057] According to the oil recovery section 70 configured as described above, the oil collected by the oil collection filter 50 is blown to the oil guard 71 by centrifugal force and collected in the oil receiver 75 formed by the oil guard 71 and the oil panel 72. The oil collected in the oil receiver 75 is collected in the oil tray 73.

[0058] 13, the oil recovery section 170 may be configured such that the oil guard and the oil panel are integrated together. With the oil recovery section 170 configured in this manner, the oil collected by the oil collection filter 50 is blown to the upstream wall section 171 of the oil recovery section 170 by centrifugal force and is recovered in the oil recovery section 170.

[0059] In the oil recovery section 170 according to the modified example, the height of a downstream wall portion 172 of the oil recovery section 170 is set to be lower than the peripheral edge portion 52, as shown in FIG.

[0060] For example, when the oil collection filter 50 is installed horizontally as shown in Fig. 14, the downstream wall portion 172 of the oil collection section 170 needs to be provided downstream of the oil collection filter 50 (below in the Z direction) in order to collect the oil collected by the oil collection filter 50. In this case, in order to remove the oil collection section 170, it is necessary to first remove the oil collection filter 50, which is time-consuming. Furthermore, there is a risk that the inside of the housing 10 will become dirty due to oil dripping from the oil collection section 170 or oil remaining on the oil collection filter 50 dripping downward in the Z direction.

[0061] In contrast, according to the oil recovery section 170 described above, the height of the downstream wall portion 172 of the oil recovery section 170 is set to be lower than the peripheral edge portion 52, so that the oil recovery section 170 can be removed without removing the oil collection filter 50. This makes it possible to easily clean the oil recovery section 170. Furthermore, because the oil recovery section 170 is configured to prevent oil dripping, it is possible to suitably prevent the inside of the housing 10 from being soiled by oil dripping from the oil recovery section 170.

[0062] 13 shows the case where the oil collection filter 50 is installed vertically, the angle of the oil collection filter 50 can be set as appropriate within a range in which oil dripping from the oil collection filter 50 does not escape from the oil recovery section 170. Furthermore, the height and position of the downstream wall section 172 of the oil recovery section 170 can be set at any position as appropriate, as long as it is lower than the peripheral edge section 52 and can recover dripping oil according to the installation angle of the oil collection filter 50.

[0063] <Air Purification Filter 80> The air purification filter 80 is provided downstream (downward in the Z direction) of the blower 30. The air purification filter 80 purifies the exhaust air sent from the blower 30. As shown in FIG. 6 , the air purification filter 80 has a smoke removal filter 81 and a deodorization filter 82.

[0064] The smoke removal filter 81 removes smoke by using a quasi-HEPA (High Efficiency Particulate Air) filter or the like.

[0065] The deodorizing filter 82 is provided downstream (below in the Z direction) of the smoke removing filter 81. The deodorizing filter 82 contains activated carbon or the like, and as air passes through, it absorbs odors contained in the air, thereby separating and removing the odors from the air. The smoke removing filter 81 and the deodorizing filter 82 are coated with a deodorizing agent, which eliminates any odorous components that adhere to them.

[0066] 10, the smoke removal filter 81 and the odor removal filter 82 are disposed inside a filter cover 83. By removing the filter cover 83, the air purification filter 80 can be accessed.

[0067] When replacing the air purification filter 80, the filter cover 83 is removed, and the smoke removal filter 81 or the deodorization filter 82 is removed from the replacement hole and replaced.

[0068] The air purification filter 80 also functions as a sound absorbing mechanism. That is, the air purification filter 80 can absorb the sound of the fan motor 32.

[0069] For example, if the air purification filter 80 is not provided, the sound of the fan motor 32 may leak from the exhaust port 16C of the lower surface portion 16, causing discomfort to customers.

[0070] In contrast, in the oily smoke purification device 1 according to this embodiment, the air purification filter 80 is provided between the blower 30 and the exhaust port 16C, so the sound of the fan motor 32 is absorbed by the air purification filter 80, reducing the sound of the fan motor 32 leaking from the exhaust port 16C. This improves the comfort of customers.

[0071] The air filter 80 also functions as a speed reducing mechanism, that is, it slows down the airflow generated by the blower 30.

[0072] For example, if the air purification filter 80 is not provided, the airflow generated by the blower 30 may collide with the floor surface at high speed, stirring up dust on the floor surface and causing discomfort to customers.

[0073] In contrast, in the oil smoke purification device 1 according to this embodiment, an air purification filter 80 is provided between the blower 30 and the exhaust port 16C, so that the air flow generated by the blower 30 is slowed down, and the stirring up of dust on the floor surface can be effectively suppressed.

[0074] As described above, the oil smoke purifying device 1 according to this embodiment is installed on the floor of a restaurant. The oil smoke purifying device 1 includes a housing 10 having an upper air intake port for intake and a lower air exhaust port 16C for exhausting air, a blower 30 disposed within the housing 10, an exhaust passage 40 through which the airflow generated by the blower 30 passes, a disk-shaped oil collection filter 50 having holes disposed upstream of the blower 30, and a motor 60 to which the oil collection filter 50 is detachably attached and which rotates the oil collection filter 50 at high speed. With the oil smoke purifying device 1 configured as described above, the high-speed rotation of the oil collection filter 50 by the motor 60 effectively captures oil from the exhaust air flowing from the restaurant kitchen onto the floor and from the exhaust air generated by cooking at customer tables. The oil collection filter 50 is resistant to clogging, allowing it to effectively capture oil smoke on the restaurant floor for a long period of time. It is possible to prevent the oily smoke from spreading over a wide area because the exhaust is performed from below the oily smoke purification device 1. As a result, it is possible to provide an oily smoke purification device 1 that can purify oily smoke on restaurant floors for a long period of time and prevent the oily smoke from spreading over a wide area.

[0075] The oily smoke purification device 1 further includes an air purification filter 80 (speed reduction mechanism) that is disposed downstream of the blower 30 and that slows down the airflow generated by the blower 30. With this configuration, the airflow generated by the blower 30 is slowed down, and it is possible to suitably prevent dust on the floor from being stirred up.

[0076] Furthermore, exhaust port 16C is formed so as to exhaust air toward the floor surface. With this configuration, air is exhausted toward the floor surface via exhaust port 16C, which can prevent smoke from spreading and prevent customers from being exposed to the exhausted air and feeling uncomfortable.

[0077] Furthermore, exhaust port 16C is provided on the underside of housing 10. With this configuration, because exhaust port 16C is provided on underside portion 16 of housing 10, it is possible to prevent the exhausted air from hitting the feet of customers, thereby preventing customers from feeling uncomfortable.

[0078] The oily smoke purification device 1 further has legs 90 that support the housing 10. This configuration ensures a space between the floor surface and the underside 16 of the housing 10, allowing air to be suitably exhausted from the underside 16. Furthermore, cleaning is easier because the floor surface is less likely to come into contact with the housing 10 when cleaning it.

[0079] The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the claims.

[0080] For example, in the above-described embodiment, the oily smoke purification device 1 has the air purification filter (speed reduction mechanism) 80, but the oily smoke purification device does not have to have an air purification filter.

[0081] Furthermore, in the above-described embodiment, the exhaust port 16C is formed so as to exhaust air toward the floor surface, but the exhaust port does not have to be formed so as to exhaust air toward the floor surface.

[0082] Furthermore, in the above-described embodiment, the outlet 16C is provided on the bottom surface of the housing 10, but the outlet does not have to be provided on the bottom surface of the housing 10.

[0083] Furthermore, in the above-described embodiment, the oily smoke purification device 1 has the legs 90, but the oily smoke purification device does not have to have legs.

[0084] In the above-described embodiment, the oil tray 73 is disposed adjacent to the oil guard 71. However, the location where the oil tray 73 is disposed is not limited, and the oil tray 73 can be disposed in any available space within the housing 10. In this case, the oil tray 73 is not contaminated by oil smoke, and therefore can be prevented from becoming contaminated when the oil is collected. Furthermore, since the oil tray 73 can be disposed in any available space within the housing 10, efficient space utilization is possible.

[0085] Also, a tray larger than the area where the air is discharged (corresponding to ventilation cover 16B) may be provided below leg 90. This configuration prevents the high-temperature exhaust air discharged from outlet 16C from directly hitting the low-temperature floor surface, thereby preventing condensation on the floor surface. [Explanation of symbols]

[0086] 1 Oil smoke cleaning device 10. Cabinet 11A Slit section 15 Placement section 16C Outlet 20 Rectifier plate 20A Gap (inlet) 20B Lower end of the rectifier plate 30 Blower 30A intake port 31 Fans 32 Fan motor 33 Casing 40 Exhaust passage 50 Oil collection filter 60 motor 70, 170 Oil recovery section 80 Air purification filter (sound absorption mechanism, reduction mechanism) 90 Legs

Claims

1. A greasy smoke purification device to be placed on the floor of a restaurant, a housing having an intake port at an upper portion thereof for taking in exhaust air flowing from a kitchen of the restaurant onto the floor, and an exhaust port at a lower portion thereof for discharging air toward the floor; a blower disposed within the housing; an exhaust passage through which the airflow generated by the blower passes; a disk-shaped oil collection filter having holes, the disk-shaped oil collection filter being arranged upstream of the blower; a motor that is detachably attached to the oil collection filter and rotates the oil collection filter at high speed; an air purification filter disposed downstream of the blower and functioning as a speed reduction mechanism for slowing down the air flow generated by the blower.

2. The oily smoke cleaning device according to claim 1 , wherein the outlet is provided on a lower surface of the housing.

3. The oily smoke purification device according to claim 1 or 2, further comprising legs for supporting the housing.

4. The oily smoke cleaning device according to any one of claims 1 to 3, further comprising a tray below the lower surface of the housing, the tray being larger than the area from which the air is discharged.

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