WO2015166947A1 - Dispositif d'échappement - Google Patents

Dispositif d'échappement Download PDF

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Publication number
WO2015166947A1
WO2015166947A1 PCT/JP2015/062829 JP2015062829W WO2015166947A1 WO 2015166947 A1 WO2015166947 A1 WO 2015166947A1 JP 2015062829 W JP2015062829 W JP 2015062829W WO 2015166947 A1 WO2015166947 A1 WO 2015166947A1
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WO
WIPO (PCT)
Prior art keywords
air
port
blower
exhaust device
suction port
Prior art date
Application number
PCT/JP2015/062829
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English (en)
Japanese (ja)
Inventor
真弘 近藤
光次郎 渡
清水　晃治
田村　秀樹
Original Assignee
株式会社Ｌｉｘｉｌ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社Ｌｉｘｉｌ filed Critical 株式会社Ｌｉｘｉｌ
Publication of WO2015166947A1 publication Critical patent/WO2015166947A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit

Definitions

  • the present invention relates to an exhaust device that sucks and discharges contaminants such as oil smoke.
  • a general exhaust device includes a hood portion and an exhaust fan that sucks and exhausts air in the hood portion.
  • the hood portion is formed with an introduction port that opens toward the cooking device.
  • the contaminants sucked into the hood part are usually captured by a capturing member such as a filter.
  • contamination may occur in the hood due to contaminants upstream from the place where the capture member is installed, and there is room for improvement in the conventional exhaust system.
  • This invention is made in view of such a subject, and the objective is to provide the exhaust apparatus which can suppress generation
  • an exhaust device includes an inlet opening that opens toward an external space and a suction opening that opens at a depth side from the inlet, and the inside of the collection space
  • a hood portion provided with a fan, a blower capable of sucking air in the collection space through the suction port, a cover member that covers the collection space from the introduction port side, and an air intake portion for taking air in the external space into the collection space
  • the hood portion is provided with a blower port for discharging a layered air flow along a back wall surface on the back side from the intake portion.
  • the air flow discharged from the air blowing port functions as an air curtain, and the air flow suppresses the approach of the contaminated air to the inner wall surface. It is done. Therefore, it is possible to prevent the contamination contained in the contaminated air from adhering to the inner wall surface, and to suppress the occurrence of dirt in the hood portion.
  • the exhaust device may be configured so that a part of the air discharged from the blower can be supplied to the blower opening. According to this aspect, it is not necessary to install a drive system for supplying air to the air outlet separately from the air blower.
  • the exhaust device may be further provided with a capturing member that is installed in a flow path from the collection space to the air blowing port via the blower and capable of capturing contaminants contained in the air.
  • the cleaned airflow can be discharged from the blower opening, and the contaminants can be prevented from adhering to the inner wall surface due to the airflow.
  • the air blowing port may be provided so as to be annularly connected along the circumferential direction around the suction port. According to this aspect, it becomes easy to suppress adhesion of contaminants in a wide range of the back wall surface of the hood portion.
  • the exhaust device forms an air supply path for supplying air to the air blowing port, and is arranged with a first opposed wall portion and a second opposed wall portion spaced apart from each other, and a first opposed wall portion and a second opposed wall.
  • a connecting member that connects the air flow direction changing unit for changing the air flow direction of the airflow flowing through the air supply path, and the connecting member is upstream of the airflow direction changing unit. Provided on the downstream side of the airflow direction changing portion. According to this aspect, even when the air flow in the air supply path is divided by the connection member, the air flow is diffused when the air flow direction is changed by the air flow direction changing unit, and the air flow in a state where the air flow is not divided is It becomes easy to exhale.
  • a plurality of connecting members may be provided along the airflow direction of the airflow flowing through the air supply path. According to this aspect, the airflow flowing through the air supply path can be rectified by the plurality of connecting members, the flow of the airflow entering the airflow direction changing unit is stabilized, and the laminar airflow is easily discharged from the blower port.
  • the air intake portion may be provided on the cover member at a position away from the air blowing port toward the suction port when viewed from the direction along the central axis of the suction port.
  • the back wall surface may be provided so as to extend from the air blowing port to the suction port, and may include a flat portion extending linearly so as to straddle the air blowing port. According to this aspect, since it becomes easy to maintain the layer thickness of the air flow discharged from the air outlet, it becomes easy to suppress the approach of the contaminated air taken in from the intake portion to the back wall surface, and the adhesion of contaminants to the back wall surface is prevented. It becomes easy to suppress.
  • the occurrence of dirt in the hood portion can be suppressed.
  • FIG. 1 is a side view showing a use state of the exhaust device 10 according to the embodiment.
  • the exhaust device 10 is a range hood and is installed in the indoor space 201.
  • a heating cooker 203 such as an electromagnetic cooker is installed in the indoor space 201.
  • 2 and 3 are a side sectional view and a front sectional view of the exhaust device 10, respectively.
  • 2 shows an XZ plane sectional view as seen from the Y direction in FIG. 1
  • FIG. 3 shows a YZ plane sectional view as seen from the X direction in FIG.
  • the directions X and Y are referred to as the front-rear direction X and the left-right direction Y, respectively, and the vertical direction perpendicular thereto is referred to as the up-down direction Z.
  • the XY plane is a horizontal plane.
  • the exhaust device 10 includes a first housing 12, a hood portion 14, a capturing member 16, a second housing 18, a blower 20, and a cover member 22. Since most of the configurations shown in FIGS. 2 and 3 are common, description will be made with reference mainly to FIG.
  • the first housing 12 is formed in a flat box shape, and a hood portion 14 is provided inside thereof.
  • casing 12 is provided with the top
  • an introduction port 30 that opens toward the indoor space 201, which is an external space, and a suction port 32 that opens behind the introduction port 30 are formed.
  • the introduction port 30 opens toward the lower side where the cooking device 203 is located, and is formed in the bottom surface portion 26 of the first housing 12.
  • the hood portion 14 is provided with a collection space 34 for collecting contaminated air therein.
  • the hood portion 14 is formed with a plate-like extension portion 40 extending from the first inner wall portion 38 forming the introduction port 30 toward the suction port 32 side. Further, the hood portion 14 is formed with a cylindrical connection portion 44 that extends from the second inner wall portion 42 that forms the suction port 32 to the opposite side of the introduction port 30. A communication passage 46 is formed in the connection portion 44. The communication path 46 is formed so as to extend linearly along the central axis L1 of the suction port 32.
  • a back wall surface 36 is formed on the back side from the introduction port 30.
  • the rear wall surface 36 is formed in a bowl shape, that is, a concave shape, such that the inner diameter is smaller on the suction port 32 side than on the introduction port 30 side.
  • the rear wall surface 36 is provided such that a portion near the outer peripheral end away from the suction port 32 extends to the back side of the extending portion 40 that is a part of the hood portion 14.
  • the capturing member 16 is a filter and is arranged so as to cross the communication path 46.
  • the capturing member 16 is detachably attached to the hood portion 14.
  • the capturing member 16 can capture contaminants contained in the air flowing through the capturing member 16.
  • the contaminants here include dust and the like in addition to the oily smoke generated by cooking using the heating cooker 203.
  • the capturing member 16 is not limited to a filter as long as it can exhibit such a function.
  • the second casing 18 is disposed above the first casing 12, and a storage portion 48 is provided inside thereof.
  • a storage space 50 is formed inside the storage portion 48, and the blower 20 is installed in the storage space 50.
  • a connecting portion 44 of the hood portion 14 is connected to the storage portion 48, and the storage space 50 is communicated with the collection space 34 through the communication path 46.
  • An exhaust duct 52 is connected to the storage portion 48, and the storage space 50 communicates with an outdoor space (not shown) through an exhaust passage 54 in the exhaust duct 52.
  • the blower 20 is a centrifugal blower such as a sirocco fan, but the type is not limited to this.
  • the blower 20 is installed such that the suction port 56 for sucking air is positioned coaxially with the suction port 32 of the hood portion 14.
  • the blower 20 can drive the air in the collection space 34 through the suction port 32 and can discharge the sucked air to the exhaust path 54 by driving.
  • the cover member 22 is a current plate, and is disposed so as to cover the collection space 34 from the inlet 30 side.
  • FIG. 4 is an enlarged view of a part of FIG.
  • the extended portion 40 of the hood portion 14 is covered with the outer peripheral portion 22 a of the cover member 22 on the inner peripheral surface 40 a on the front side.
  • the cover member 22 is provided so that the lower surface 22b which is an exposed surface to the indoor space 201 is flush with the introduction port 30.
  • the cover member 22 is detachably attached to the hood portion 14 via a support (not shown) provided on the hood portion 14.
  • an intake portion 58 is formed by a through-hole penetrating in the thickness direction. Similarly to the cover member 22, the intake portion 58 is disposed on the inlet 30 side of the collection space 34.
  • a standing piece 60 that rises toward the suction port 32 is provided at the edge of the outer peripheral portion 22 a of the cover member 22.
  • a standing piece 62 that rises toward the suction port 32 is provided on the inner peripheral edge of the intake portion 58.
  • FIG. 5 is a bottom view of the exhaust device 10. This figure is also a view seen from the direction P1 (see FIG. 2) along the central axis L1 of the suction port 32. The central axis L1 also coincides with the central axis of the inlet 30.
  • P1 see FIG. 2
  • the central axis L1 also coincides with the central axis of the inlet 30.
  • the introduction port 30 is formed in a rectangular shape when viewed from the direction P1.
  • the cover member 22 is formed in a rectangular shape that matches the shape of the introduction port 30 when viewed from the direction P1, and is fitted into the inside thereof.
  • a plurality of air intake portions 58 are formed at positions near the outer periphery of the cover member 22 as long slots along the outer side 22 c of each of the four circumferences of the cover member 22.
  • the intake portions 58 are arranged in an annular shape along the circumferential direction around the suction port 32.
  • the hood portion 14 is provided with a blower port 64 on the back side from the introduction port 30.
  • the air outlet 64 opens into the collection space 34.
  • the air blowing port 64 is formed by the back wall surface 36 of the hood portion 14 and the edge portion 40b on the back side of the extending portion 40 on the side opposite to the introduction port 30.
  • the air supply path 70 for supplying airflow is connected to the air outlet 64.
  • a layered air flow is discharged from the air outlet 64 along the back wall surface 36 located on the back side from the intake portion 58.
  • the direction of the air flow flowing from the air supply passage 70 through the air blowing port 64 is indicated by an arrow, and a part of the range in which the layered air flow is discharged is indicated by a two-dot chain line S1.
  • the layered air flow is discharged from the blower port 64 toward the suction port 32.
  • the air blowing port 64 is formed by a plurality of side portions 66 and a plurality of corner portions 68.
  • Each side portion 66 is formed in a slit shape extending linearly along the outer side 33b of each of the four circumferences of the introduction port 30.
  • Each side portion 66 is arranged in an annular shape along the circumferential direction around the suction port 32.
  • the side portions 66 on both sides in the front-rear direction X are provided at locations where the suction port 32 is interposed, and the side portions 66 on both sides in the left-right direction X are also provided at locations where the suction port 32 is interposed.
  • Each corner portion 68 connects the ends of the adjacent side portions 66 and is formed in an arc shape.
  • the air blowing port 64 is provided by the side portions 66 and the corner portions 68 so as to be annularly connected along the circumferential direction around the suction port 32.
  • the intake part 58 is provided in the cover member 22 at a position close to the air blowing port 64 when viewed from the direction P1 and away from the air blowing port 64 toward the suction port 32.
  • the intake portion 58 is formed so as to extend along the longitudinal direction of the side portion 66 at a position close to the side portion 66 of the air blowing port 64.
  • the length in the longitudinal direction of the intake portion 58 is formed to be shorter than the length in the longitudinal direction of the side portion 66 at a position close to the intake portion 58.
  • air is discharged from the intake portion 58 vertically upward, which is a direction along the central axis L2. From the intake portion 58, air is discharged toward the path of the air flow discharged from the blower port 64.
  • FIG. 6 is a side sectional view showing the inner wall surface 36 of the hood portion 14.
  • the back wall surface 36 is provided so as to extend from the air blowing port 64 to the suction port 32.
  • the rear wall surface 36 is provided with a first flat surface portion 92, a curved surface portion 94, and a second flat surface portion 96 in order from the air blowing port 64 to the suction port 32.
  • the first flat portion 92 is formed to extend linearly from the upstream side to the downstream side of the air flow discharged from the blower port 64 so as to straddle the blower port 64.
  • the curved surface portion 94 is formed to have a curved shape having a curvature radius of 50 [mm] or more.
  • the radius of curvature here refers to the radius of curvature of a curve formed by the inner peripheral surface of the curved surface portion 94 in a cross section cut along the central axis L1 (see FIG. 2) of the suction port 32.
  • a tangent passing through the inner peripheral surface of the curved surface portion 94 is referred to as L3 (see FIG.
  • ⁇ an acute angle of the tangent L3 with respect to the central axis L1 of the suction port 32 is referred to as ⁇ (see FIG. 2).
  • ⁇ an acute angle of the tangent L3 with respect to the central axis L1 of the suction port 32
  • ⁇ an acute angle of the tangent L3 with respect to the central axis L1 of the suction port 32
  • the second flat portion 96 is formed to extend linearly from the air blowing port 64 side toward the suction port 32 side.
  • the back wall surface 36 is formed by a combination of the flat surface portions 92 and 96 and the curved surface portion 94.
  • the air supply path 70 is branched from the exhaust path 54, and the air blowing port 64 is communicated with the exhaust path 54 through the air supply path 70.
  • the air supply path 70 includes a downstream air supply path 70 ⁇ / b> A provided in the first housing 12 and an upstream air supply path 70 ⁇ / b> B connecting the downstream air supply path 70 ⁇ / b> A and the exhaust path 54.
  • the downstream air supply passage 70A communicates with the air inlet 72 and the air outlet 64 that open to the top surface portion 24 of the first housing 12, and is formed in a rectangular cylindrical shape as a whole.
  • the upstream air supply passage 70 ⁇ / b> B is formed in a plurality of air supply tubes 74 that connect the exhaust duct 52 and the supply inlet 72 of the first housing 12, and is provided in a plurality branched from the exhaust passage 54. 2 and 3, only the air supply tube 74 connected to the supply inlet 72 in one side portion of the four sides of the square cylindrical downstream air supply passage 70A is shown. A part of the other air supply tube 74 connected to the air supply inlet 72 in the side portion is omitted.
  • the air supply passage 70 is formed such that its passage cross-sectional area is smaller than the passage cross-sectional area S2 [mm 2 ] of the exhaust passage 54. Specifically, if the passage cross-sectional area of the downstream air supply passage 70A is S1a [mm 2 ] and the total value of the passage cross-sectional areas of each upstream air supply passage 70B is S1b [mm 2 ], S1a and S1b are These are formed so as to be smaller than the passage sectional area S2 of the exhaust passage 54. As a result, a larger amount of air can easily flow from the branching point of the exhaust path 54 and the air supply path 70 into the downstream flow path than in the air supply path 70.
  • the downstream side air supply path 70 ⁇ / b> A is provided with an inflow region 76, an airflow direction changing unit 78, an intermediate region 80, and an outflow region 84 in order from the supply port 72 to the blower port 64.
  • the airflow direction changing unit 78 the airflow collides with the abutting surface 78a in front of the airflow direction, and the airflow direction is changed.
  • an inclined surface 82 is provided in front of the airflow direction, and an air flow flows along the inclined surface 82.
  • the outflow region 84 is provided as a running section in which the airflow whose airflow direction has been changed by the airflow direction changing unit 78 is developed into a laminar flow state.
  • the air flowing through the air supply path 70 is decelerated when the airflow direction is changed by the airflow direction changing unit 78, the Reynolds number is reduced, and the air in the laminar flow state is easily discharged from the air blowing port 64.
  • FIG. 7 is a perspective sectional view of the range Q in FIG. 4 as viewed obliquely from above.
  • the downstream air supply passage 70 ⁇ / b> A is formed by a first opposing wall portion 86 and a second opposing wall portion 88 that are spaced apart from each other.
  • the 1st opposing wall part 86 and the 2nd opposing wall part 88 are connected by the some rib 90 as a connection member. Thereby, the site
  • Each rib 90 is provided in the inflow region 76 of the downstream air supply passage 70 ⁇ / b> A on the upstream side of the airflow direction changing unit 78, and is not provided in the intermediate region 80 and the outflow region 84 on the downstream side thereof.
  • the ribs 90 are provided in parallel along the airflow direction P2 of the airflow flowing through the inflow region 76.
  • the air in the exhaust passage 54 is supplied to the air blowing port 64 through the air supply passage 70 due to the pressure difference.
  • a part of the air discharged from the blower 20 is configured to be able to supply air to the blower port 64.
  • a layered air flow is discharged from the air outlet 64 along the back wall surface 36 of the hood portion 14.
  • the inside of the collection space 34 is maintained at a negative pressure, the contaminated air in the indoor space 201 is taken into the collection space 34 through the intake portion 58.
  • the air flow discharged from the blower port 64 functions as an air curtain, and the air flow suppresses the approach of the contaminated air taken in from the intake portion 58 to the back wall surface 36, so that the contaminants enter the back wall surface 36. Prevents adhesion.
  • Contaminants are trapped when the air containing them passes through the trapping member 16, and a purified air flow can be discharged from the blower port 64. Therefore, it is possible to prevent the contaminants from adhering to the inner wall surface 36 due to the air flow discharged from the blower port 64.
  • the airflow discharged from the blower port 64 prevents the contaminants from adhering to the back wall surface 36 of the hood portion 14 and suppresses the occurrence of dirt in the hood portion 14. It is done.
  • the flow rate of the air flow discharged from the blower port 64 is determined according to the pressure difference between the collection space 34 on the upstream side of the air supply path 70 and the exhaust path 54 which is the space on the downstream side, and the pressure It increases as the difference increases.
  • the collection space 34 is covered by the cover member 22, the collection space 34 is easily made negative by the blower 20, and the pressure difference is easily increased. Therefore, even if the output of the blower 20 is not increased, it is easy to discharge a large flow of air from the blower port 64, and it is easy to suppress the adhesion of contaminants to the back wall surface 36 of the hood portion 14.
  • the collection space 34 is covered by the cover member 22, the collection space 34 is not easily affected by the airflow or the like of the indoor space 201, and the airflow discharged from the air blowing port 64 is easily maintained in a laminar flow state. . Therefore, it becomes easy to suppress the approach of the air taken in from the intake part 58 to the back wall surface 36 in a wide range, and it becomes easy to suppress the adhesion of contaminants to the back wall surface 36 of the hood part 14.
  • each side portion 66 of the air blowing port 64 is provided so as to exhale air from different locations sandwiching the suction port 32 toward the suction port 32, so that the rear wall surface of the hood portion 14 is provided. It is easy to shorten the distance from the air blowing port 64 to the suction port 32 when the air flow is discharged to a wide range of 36. Therefore, it becomes easy to keep the air flow discharged from the blower port 64 in a laminar flow state, and it becomes easy to suppress adhesion of contaminants in a wide range of the back wall surface 36 of the hood portion 14.
  • the air blowing port 64 is provided so as to be continuous in a ring shape along the circumferential direction around the suction port 32, and can discharge an air flow to almost the entire area of the back wall surface 36 of the hood portion 14. Therefore, it becomes easy to suppress adhesion of contaminants over a wide range of the inner wall surface 36.
  • the rib 90 is provided on the downstream side of the air flow direction changing portion 78, the air flow in the air supply path 70 is divided by the rib 90, and the air flow in the divided state is easily discharged from the blower port 64. In this case, a dead space is generated between the diverted air flows, and contaminants easily approach the back wall surface 36 in the dead space.
  • the rib 90 is provided on the upstream side of the airflow direction changing unit 78 and is not provided on the downstream side. Therefore, even if the air flow in the air supply path 70 is divided by the rib 90, the air flow is diffused when the air flow direction changing unit 78 changes the air flow direction.
  • the air flow in a state of being diverted to the downstream side is less likely to flow, and the air flow in a state of being not diverted from the air blowing port 64 is easily discharged. For this reason, the air flow can be easily discharged from the blower port 64 to a wide range of the back wall surface 36 of the hood portion 14 while ensuring the strength of the portion including the opposing wall portions 86 and 88 by the rib 90.
  • each of the ribs 90 is provided along the airflow direction of the airflow flowing through the air supply path 70. Therefore, the airflow flowing through the air supply path 70 can be rectified by the ribs 90, the flow of the airflow entering the airflow direction changing unit 78 is stabilized, and the laminar airflow is easily discharged from the blower port 64.
  • the intake portion 58 is provided at a position close to the air blowing port 64 when viewed from the direction P1, the air flow discharged from the air blowing port 64 functions as an induced flow that exerts an ejector action. Therefore, the amount of air taken into the collection space 34 from the intake portion 58 increases, and it becomes easy to take in a lot of air from the intake portion 58 even if the output of the blower 20 is small.
  • the intake portion 58 is located away from the air blowing port 64 toward the suction port 32 when viewed from the direction P1. For this reason, when contaminated air is taken in from the intake part 58, it becomes difficult for the contaminated air to approach the vicinity of the air blowing port 64, and the range in which contaminants can come into contact is easily brought closer to the suction port 32 side. Therefore, even if contaminants adhere to the back wall surface 36 of the hood portion 14, the attachment range is close to the suction port 32 side, and the cleaning operation is facilitated by narrowing the range to be cleaned.
  • the air outlet 64 is located in a deep part in the hood part 14, it is difficult for the user to put in his hand and to clean it.
  • the contaminated air is difficult to approach in the vicinity of the air blowing port 64, it becomes easy to prevent the attachment of the contaminants at the places where the cleaning is difficult, and the workability at the time of cleaning is improved.
  • the layer thickness tends to be thin.
  • the layer thickness of the air flow discharged from the blower port 64 can be easily maintained. The thicker the airflow layer is, the easier it is to suppress the approach of the contaminated air taken in from the intake portion 58 to the back wall surface 36, and thus it is easy to suppress the adhesion of contaminants to the back wall surface 36.
  • the exhaust device 10 may be used for discharging contaminants such as fumes generated by welding work in factory equipment in addition to contaminants such as oily smoke generated by cooking using the heating cooker 203.
  • the exhaust device 10 may be used in a guest room of a restaurant other than a kitchen such as a kitchen.
  • FIG. 8 is a side sectional view of the exhaust device 10 according to the first modification.
  • hood part 14 which concerns on the above-mentioned embodiment demonstrated the example formed in bowl shape.
  • the rear wall surface 36 may be formed in a planar shape as shown in the figure. In this case, the rear wall surface 36 does not include the curved surface portion 94 and is formed only by the flat surface portion 92.
  • the back wall surface 36 may be formed only by the curved surface portion 94. That is, the inner wall surface 36 only needs to be formed by one or both of the flat surface portion 92 and the curved surface portion 94.
  • FIG. 9 is a side sectional view of the exhaust device 10 according to the second modification.
  • hood part 14 demonstrated the example comprised by the single member connected from the ventilation port 64 to the suction port 32 in the above-mentioned embodiment.
  • the rear wall surface 36 may be configured by a plurality of divided members 98 having a portion divided at a midway position from the air blowing port 64 to the suction port 32.
  • the boundary position of each division member 98 is shown with the dashed-dotted line L4.
  • the dividing member 98 includes a first dividing member 98A and a second dividing member 98B.
  • the first divided member 98 ⁇ / b> A includes a part of the back wall surface 36 and the connection portion 44.
  • Each divided member 98 is detachably connected by screws, fittings, or the like.
  • FIG. 10 is a bottom view of the exhaust device 10 according to the third modification.
  • the air blowing port 64 according to the above-described embodiment is formed by a plurality of side portions 66 and a plurality of corner portions 68. As shown in the drawing, the blower port 64 may not include the plurality of corner portions 68 but may be formed only by the plurality of side portions 66. In addition to this, the air blowing port 64 may be formed by only a single side portion 66, and the position, shape, and number thereof are not limited to those described above.
  • blower different from the blower 20 may be installed in the first housing 12 or the like, and the blower 64 may be supplied with air through the supply passage 70 by the blower.
  • the intake portion 58 may be formed by a gap provided between the introduction port 30 of the hood portion 14 and the edge portion of the outer peripheral portion 22a of the cover member 22.
  • the capturing member 16 has been described as being installed in the communication path 46 that connects the storage space 50 in which the blower 20 is installed and the collection space 34.
  • the capturing member 16 is only required to be installed in a flow path from at least the collection space 34 through the blower 20 to the blower port 64.
  • the capture member 16 is provided in the exhaust path 54, the air supply path 70, and the like. It may be installed or may be installed in the vicinity of the suction port 32 of the collection space 34.
  • the present invention relates to an exhaust device that sucks and discharges contaminants such as oil smoke.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)

Abstract

　L'invention porte sur un dispositif d'échappement comprenant un capot (14) muni d'un orifice d'admission (30) qui s'ouvre vers l'extérieur et d'un orifice d'aspiration, situé plus loin à l'intérieur que l'orifice d'admission (30), et pourvu d'un espace de collecte (34) interne; une soufflante qui peut aspirer l'air à l'intérieur de l'espace de collecte par l'intermédiaire de l'orifice d'aspiration; un élément couvercle (22) qui recouvre l'espace de collecte (34) à partir du côté orifice d'admission (30); et une admission (58) pour aspirer l'air extérieur dans l'espace de collecte (34). Le dispositif d'échappement est caractérisé en ce que le capot (14) est pourvu d'un orifice d'aspiration (64) pour évacuer le flux d'air laminaire le long d'une surface de paroi interne (36) située plus loin à l'intérieur que l'admission (58). En raison de cette configuration, il est possible d'obtenir un dispositif d'échappement qui peut réduire l'encrassement à l'intérieur du capot.
PCT/JP2015/062829 2014-04-30 2015-04-28 Dispositif d'échappement WO2015166947A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-094025 2014-04-30
JP2014094025A JP2015210066A (ja) 2014-04-30 2014-04-30 排気装置

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WO2015166947A1 true WO2015166947A1 (fr) 2015-11-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018137956A1 (fr) * 2017-01-26 2018-08-02 BSH Hausgeräte GmbH Hotte aspirante

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102160415B1 (ko) * 2020-01-17 2020-10-05 (주)리베첸 배기후드 시스템

Citations (5)

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Publication number Priority date Publication date Assignee Title
JPS61282743A (ja) * 1985-06-05 1986-12-12 Teruo Takeuchi 汚れの少ない排気フ−ド
JPH06193932A (ja) * 1992-12-21 1994-07-15 Matsushita Electric Ind Co Ltd 排気フード装置
JPH0979638A (ja) * 1995-09-08 1997-03-28 Marukatsu Sangyo Kk レンジフード
JPH0989331A (ja) * 1995-09-28 1997-04-04 Tokyo Gas Co Ltd 排気フード
JP2012207876A (ja) * 2011-03-30 2012-10-25 Toho Gas Co Ltd 浅型レンジフード

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Publication number Priority date Publication date Assignee Title
JPS61282743A (ja) * 1985-06-05 1986-12-12 Teruo Takeuchi 汚れの少ない排気フ−ド
JPH06193932A (ja) * 1992-12-21 1994-07-15 Matsushita Electric Ind Co Ltd 排気フード装置
JPH0979638A (ja) * 1995-09-08 1997-03-28 Marukatsu Sangyo Kk レンジフード
JPH0989331A (ja) * 1995-09-28 1997-04-04 Tokyo Gas Co Ltd 排気フード
JP2012207876A (ja) * 2011-03-30 2012-10-25 Toho Gas Co Ltd 浅型レンジフード

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018137956A1 (fr) * 2017-01-26 2018-08-02 BSH Hausgeräte GmbH Hotte aspirante
CN110199157A (zh) * 2017-01-26 2019-09-03 Bsh家用电器有限公司 抽油烟机

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