WO2016037414A1 - 吸油烟机及其蜗壳 - Google Patents

吸油烟机及其蜗壳 Download PDF

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Publication number
WO2016037414A1
WO2016037414A1 PCT/CN2014/091295 CN2014091295W WO2016037414A1 WO 2016037414 A1 WO2016037414 A1 WO 2016037414A1 CN 2014091295 W CN2014091295 W CN 2014091295W WO 2016037414 A1 WO2016037414 A1 WO 2016037414A1
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WO
WIPO (PCT)
Prior art keywords
air outlet
volute
range hood
plate
vent
Prior art date
Application number
PCT/CN2014/091295
Other languages
English (en)
French (fr)
Inventor
蒋济武
王政骅
苏玉侠
季俊生
黎本锋
白雅丽
Original Assignee
芜湖美的厨房电器制造有限公司
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
Priority claimed from CN201410466253.8A external-priority patent/CN104501244B/zh
Priority claimed from CN201420526495.7U external-priority patent/CN204313343U/zh
Application filed by 芜湖美的厨房电器制造有限公司 filed Critical 芜湖美的厨房电器制造有限公司
Priority to EP14885061.3A priority Critical patent/EP3112759B1/en
Priority to US15/123,709 priority patent/US10060634B2/en
Publication of WO2016037414A1 publication Critical patent/WO2016037414A1/zh

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Classifications

    • 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
    • F24C15/2042—Devices for removing cooking fumes structurally associated with a cooking range e.g. downdraft
    • 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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
    • F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/12—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures
    • F04D25/14—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures and having shutters, e.g. automatically closed when not in use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/002—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying geometry within the pumps, e.g. by adjusting vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F04D29/4246—Fan casings comprising more than one outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable

Definitions

  • the invention relates to a range hood and a volute for the range hood.
  • the range hood in order to facilitate outdoor air discharge in connection with the exhaust flue at different positions, the range hood is usually provided with a plurality of exhaust vents having orthogonal opening directions.
  • the range hood with multiple exhaust vents has the defects of large air volume and wind pressure loss, low efficiency of the wind wheel and high noise.
  • the casing of the range hood having a plurality of exhaust vents is usually provided with a rear exhaust vent and an upper exhaust vent, and the opening direction of the rear vent and the opening direction of the upper vent are positive to each other. cross.
  • the air discharged from the air outlet of the volute of the oil suction press is substantially orthogonal to the upper exhaust vent, and the airflow through the upper discharge port requires a 90 degree right angle turn.
  • the air volume and the wind pressure are greatly lost, the efficiency of the wind turbine of the range hood is lowered, and high noise is generated in the eddy current region.
  • the present invention aims to solve at least one of the technical problems in the related art to some extent.
  • the present invention proposes a range hood having the advantages of small air volume and wind pressure loss, high efficiency of the wind wheel, and low aerodynamic noise.
  • the invention also proposes a volute of the range hood.
  • a range hood includes: a casing having a first outer exhaust vent and a second outer vent; the volute, the volute being disposed Inside the casing, the volute includes a volute body, the volute body includes a bottom plate, a top plate, and a side wall disposed between the bottom plate and the top plate, the volute body being provided with the first An air outlet communicating with the outer air outlet and the second outer air outlet, wherein an opening direction of the air outlet is orthogonal to an opening direction of the second outer air outlet; and a wind wheel, the wind wheel is disposed at The volute body; and the outer switch cover, the outer switch cover opens the first outer vent and closes the first outer vent and closes the first outer a venting opening and a second position for opening the second outer venting opening are movably disposed on the volute or the casing, wherein the outer switching cover and the outer position are in the second position
  • the angle ⁇ between the opening directions of the second outer vent is greater than zero and less than
  • the range hood according to the embodiment of the present invention has the advantages of small air volume and wind pressure loss, high efficiency of the wind wheel, and low aerodynamic noise.
  • the opening direction of the first outer vent and the opening direction of the second outer vent are orthogonal to each other.
  • the included angle ⁇ is greater than or equal to 30 degrees and less than or equal to 60 degrees.
  • the outer switch cover is pivotally disposed on the side panel between the first position and the second position.
  • the side panel is provided with a card slot
  • the outer switch cover includes a plate body and a pivot shaft disposed on the plate body, the pivot shaft rotatably mating on the card Inside the slot.
  • the first outer exhaust vent is disposed on a rear wall of the casing, and the second outer vent is disposed on a top wall of the casing.
  • the outer switch cover is a flat or curved plate.
  • the casing is provided with a switching plate limiting hole
  • the outer switching cover comprises a plate body and a claw disposed on the plate body, wherein the card is in the first position The claw fits in the limiting hole of the switching board.
  • the range hood further includes an outer vent sealing plate
  • the casing is provided with an inner vent
  • the volute body is provided with an inner vent communicating with the inner vent a tuyere
  • the volute further comprising an inner switching cover, the inner switching cover being movable between an open position in which the inner air outlet is opened and a closed position in which the inner air outlet is closed, wherein the open position
  • the outer exhaust vent sealing plate seals one of the first outer vent and the second outer vent.
  • the inner switching cover has a shape in which the portion corresponding to the inner air outlet and the side wall form a complete volute curved surface in the closed position.
  • the inner air outlet is formed on a spiral curved surface of the volute surface.
  • the side panel includes a first side panel and a second side panel, the first end of the first side panel being spaced apart from the first end of the second side panel so that The first end of the first side panel, the first end of the second side panel, the top plate and the bottom plate form the first air outlet, and the second end of the first side panel Separating from the second end of the second side panel such that the second end of the first side panel, the second end of the second side panel, the top panel and the bottom panel form the first Two outlets.
  • the first side wall of the first side panel is provided with a first limiting slot
  • the first end of the second side panel is provided with a second limiting slot
  • the closed position is The first end of the inner switching cover is engaged in the first limiting slot
  • the second end of the inner switching cover is engaged in the second limiting slot in the open position.
  • the inner switch cover abuts the side panel when moving between the open position and the closed position.
  • the bottom plate is provided with a sliding slot penetrating the bottom plate in a thickness direction of the bottom plate, and the inner switching cover plate is slidably fitted in the sliding groove, wherein the inner switching cover
  • the board is provided with a card located above the bottom plate And an operating portion for moving the inner switching cover along the chute and below the bottom plate.
  • the bottom plate is provided with a first limiting post and a second limiting post, and in the closed position, the card protrudes against the first limiting post, in the open position The card is convexly abutted against the second limiting post.
  • the bottom plate is provided with a first limiting boss and a second limiting boss
  • the operating portion is provided with a first limiting hole and a second limiting hole, in the closed position.
  • the first limiting boss fits in the first limiting hole
  • the second limiting boss fits in the second limiting hole in the open position.
  • a volute according to an embodiment of the second aspect of the present invention includes: a volute body, the volute body including a bottom plate, a top plate, and a side wall disposed between the bottom plate and the top plate, the volute body being provided a first outer air outlet and a second outer air outlet, wherein an opening direction of the first outer air outlet and an opening direction of the second outer air outlet are orthogonal to each other; and an outer switching cover, the outer switching cover opens the first outgoing a first position of the tuyere and closing the second outer air outlet, and being movably disposed on the volute body with a second position of closing the first outer air outlet and opening the second outer air outlet, wherein The angle ⁇ between the outer switching cover plate and the opening direction of the second outer air outlet is greater than zero and less than 90 degrees.
  • the included angle ⁇ is greater than or equal to 30 degrees and less than or equal to 60 degrees.
  • FIG. 1 is an exploded view of a range hood according to an embodiment of the present invention, wherein the outer switch cover is in a second position;
  • Figure 2 is a side cross-sectional view of a range hood according to an embodiment of the present invention.
  • Figure 3 is an enlarged view of the area A in Figure 2;
  • FIG. 4 is an exploded view of a range hood according to an embodiment of the present invention, wherein the outer switch cover is in a first position;
  • Figure 5 is a side cross-sectional view of a range hood according to an embodiment of the present invention, the outer switch cover being in a first position;
  • Figure 6 is an enlarged view of a region B in Figure 5;
  • Figure 7 is an exploded view of a range hood according to an embodiment of the present invention, wherein the outer switching cover is in a second position;
  • Figure 8 is a partially cutaway perspective schematic view of a range hood according to an embodiment of the present invention.
  • Figure 9 is a partially cutaway perspective schematic view of a range hood according to an embodiment of the present invention.
  • Figure 10 is a schematic illustration of an outer switching cover of a range hood according to an embodiment of the present invention.
  • Figure 11 is a perspective schematic view of a volute of a range hood according to an embodiment of the present invention.
  • Fig. 12 is an enlarged view of a C area in Fig. 11;
  • Figure 13 is a perspective view of a range hood according to another embodiment of the present invention.
  • Figure 14 is a perspective schematic view of the volute of the range hood shown in Figure 13, wherein the inner switching cover is in a closed position;
  • Figure 15 is an enlarged view of the D area of Figure 14;
  • Figure 16 is a bottom plan view of the volute of the range hood shown in Figure 13, the inner switch cover is in a closed position;
  • Figure 17 is an enlarged view of the E area of Figure 16;
  • Figure 18 is a top perspective view of the volute of the range hood shown in Figure 13, the inner switch cover is in an open position;
  • Figure 19 is an enlarged view of the F area of Figure 18;
  • Figure 20 is a bottom plan view of the volute of the range hood shown in Figure 13, the inner switch cover is in an open position;
  • Figure 21 is an enlarged view of a G area in Figure 20;
  • Figure 22 is a top plan view of a volute of a range hood according to an embodiment of the present invention.
  • Figure 23 is a bottom plan view of a volute of a range hood according to an embodiment of the present invention.
  • Figure 24 is a schematic illustration of an inner switch cover of a volute according to an embodiment of the present invention.
  • Figure 25 is an enlarged view of the H area of Figure 24.
  • the volute body 10 The volute body 10, the outer air outlet 105, the inner air outlet 104
  • a bottom plate 101 a sliding slot 1011, a first limiting post 1012, a second limiting post 1013, a first limiting boss 1014, and a second limiting boss 1015,
  • the casing 20 the first outer exhaust vent 201, the second outer vent 202, the inner vent 203, the switching plate limiting hole 204, the top wall 205, the rear wall 206, and the side wall 207
  • a range hood 100 according to an embodiment of the present invention will now be described with reference to Figs. As shown in FIGS. 1 to 25, a range hood 100 according to an embodiment of the present invention includes a casing 20, a volute 1, a wind wheel 30, and an outer switching cover 40.
  • the first outer air outlet 201 and the second outer air outlet 202 are disposed on the casing 20.
  • the volute 1 is disposed in the casing 20, and the volute 1 includes a volute body 10, and the volute body 10 includes a bottom plate 101, a top plate, and a side wall disposed between the bottom plate 101 and the top plate 102.
  • the top plate of the volute body 10 is formed by a portion of the top wall panel 205 of the casing 20, and the volute body 10 is provided in communication with the first outer exhaust vent 201 and the second outer vent 202.
  • the outlet opening 105, the opening direction of the outlet tuyere 105 is substantially orthogonal to the opening direction S2 of the second outer exhaust port 202.
  • the orthogonality should be understood in a broad sense, for example, the opening direction of the outlet tuyere 105 and the second outer exhaust port.
  • the jig between the opening directions S2 of 202 may be in the range of 90 degrees ⁇ 10 degrees.
  • the wind wheel 30 is disposed within the volute 1 and is driven by a motor (not shown).
  • the outer switching cover 40 opens the first outer exhaust vent 201 and closes the first position of the second outer vent 202 (see FIGS. 4 and 5), and opens the second outer vent 202 and closes the first outer
  • the second position of the vent 201 is movably disposed between the volute 1 or the casing 20. Wherein in the second position, the angle ⁇ between the outer switching cover 40 and the opening direction of the second outer air outlet 202 is greater than zero and less than 90 degrees.
  • the outer switching cover 40 can open the outer air outlet 105 and the first outer air outlet 201 and disconnect the first position of the outer air outlet 105 and the second outer air outlet 202, and disconnect the outer air outlet 105 and the first
  • the outer air outlet 201 moves between the second position of the outer air outlet 105 and the second outer air outlet 202, and in the second position, the opening direction of the outer switch cover 40 relative to the second outer air outlet 202 S2 is inclined, and the angle ⁇ between the two is greater than zero degrees and less than 90 degrees. More preferably, the angle ⁇ is greater than or equal to 30 degrees and less than or equal to 60 degrees.
  • the opening direction S1 of the first outer vent 201 and the opening direction S2 of the second outer vent 202 are substantially orthogonal to each other.
  • the first outer exhaust vent 201 is formed on the rear wall 206 of the casing 20 and the opening is rearward, and the second outer vent 202 is formed on the top wall 204 of the casing 20.
  • the opening is upwardly described as an example. Therefore, the first outer exhaust vent 201 may also be referred to as a rear outer exhaust vent, and the second outer vent 202 may also be referred to as an upper outer vent.
  • first outer exhaust vent 201 can be formed on the side wall plate 207 of the casing 20 and the second outer exhaust vent 202 is formed on the top wall 207 of the casing 20, or the first outer ventilating wind
  • the port 201 may be formed on the side wall panel 207 of the cabinet 20 and the second outer vent 202 is formed on the rear wall panel 206 of the cabinet 20.
  • the range hood 100 can selectively exhaust air to the outside through the first outer vent 201 and the second outer vent 202.
  • the range hood 100 can discharge the wind backward through the first outer vent 201.
  • the range hood 100 can discharge the wind upward through the second outer vent 202.
  • the outer switching cover 40 In the second position, the outer switching cover 40 is disposed obliquely, that is, the angle ⁇ between the outer switching cover 40 and the opening direction S2 of the second outer exhaust port 202 (the upward direction in FIG. 3) is greater than zero. And less than 90 degrees. Therefore, the outer switch cover 40 can form a drainage slope, and the guide wind flows upward through the second outer exhaust port 202 to prevent the outer switch cover 40 from being parallel to the second outer exhaust port 202 (ie, the first The opening direction S1 of the outer vent 201 is perpendicular to the airflow discharged from the outlet vent 105, so that the airflow produces a 90 degree right-angle turn, thereby greatly reducing the airflow.
  • the flow loss increases the efficiency of the rotor and reduces the eddy current area to reduce aerodynamic noise. That is, the outer switch cover 40 in the second position is further used as a drain plate.
  • the range hood 100 can make the outer switching cover 40 form a drainage slope by arranging the outer switching cover 40 at the second position obliquely with respect to the second outer vent 202.
  • the outer switching cover 40 In order to use the outer switching cover 40 to guide the upward flow of the wind to prevent the airflow from producing a 90 degree right angle turn. Thereby, not only the flow loss of the airflow can be greatly reduced, the efficiency of the wind wheel can be improved, and the eddy current region can be reduced to reduce the aerodynamic noise.
  • the range hood 100 has advantages of small air volume and wind pressure loss, high efficiency of the wind wheel, and low aerodynamic noise.
  • a range hood 100 in accordance with some embodiments of the present invention is described below.
  • the range hood 100 includes a housing 20, a volute 1, a rotor 30, and an outer switch cover 40.
  • the volute 1 includes a volute body 10 that includes a bottom plate 101, a top plate, and a side panel 102 disposed between the bottom plate 101 and the top plate.
  • the outer switch cover 40 is pivotally disposed on the side panel 102 between the first position and the second position.
  • the top plate of the volute body 10 may be formed by a portion of the top wall panel 205 of the cabinet 20.
  • the outer switch cover 40 includes a plate body 401 and a pivot 402 and a claw 403 provided on the plate body 401.
  • the side wall panel 102 is provided with a card slot 1025, and the card slot 1025 is open upward.
  • the pivot 402 is rotatably fitted within the card slot 1025 to pivotally mount the outer switch cover 40 to the side panel 102.
  • a first slot 10232 of the two free ends of the side panel 102 is provided with a card slot 1025, and the second free end 1042 is provided with a card slot 1025.
  • the plate body 401 is provided with two pivots 402. One pivot 402 is rotatably fitted in the first free end slot 1025, and the other pivot 402 is rotatably fitted in the second free end slot 1025.
  • the casing 20 is provided with a switching plate limiting hole 204 .
  • the claw 403 is fitted in the switching plate limiting hole 204 .
  • the outer switching cover 40 can be stably held in the first position, so that the outlet tuyere 105 can be prevented from being closed when the outdoor air outlet 105 is used to exhaust the outside.
  • the switching plate limiting hole 204 may be a through hole, that is, the switching plate limiting hole 204 may penetrate the top wall plate 205 of the casing 20 in the up and down direction.
  • the plurality of claws 403 may be plural, and the plurality of switching plate limiting holes 204 are plural, wherein in the first position, the plurality of claws 403 are fitted in the plurality of switching plate limiting holes 204 in one-to-one correspondence. Thereby, the outer switching cover 40 can be more stably held in the first position.
  • the outer switch cover 40 can be a flat plate or a curved plate. In the second position, the outer switching cover 40 is disposed obliquely such that the outer switching cover 40 forms a drainage ramp. That is, in the second position, the surface of the outer switching cover 40 facing the airflow discharged from the outlet tuyere 105 may constitute the drainage surface 404.
  • the exit direction of the outer switch cover 40 and the second outer exhaust port 202 is greater than 0 degrees. And less than 90 degrees, more preferably, 30 degrees or more and less than 60 degrees, that is, the angle between the outer switching cover 40 and the bottom plate 101 is greater than or equal to 120 degrees and less than or equal to 150 degrees.
  • the outer switching cover 40 is pivotally disposed on the side panel 102, and the outer air outlet 105 is open toward the rear opening and faces upward, so that in the first position, the outer switching cover 40 opens the outer air outlet 105.
  • the rear opening and the first outer exhaust vent 201 ie, the rear opening of the outlet vent 105 and the first outer vent 201 are opened
  • the outer switching cover 40 closes the upper opening and the second outer of the outlet vent 105
  • the air outlet 202 ie, the upper opening of the outlet tuyere 105 and the second outer exhaust port 202 are disconnected).
  • the outer switch cover 40 closes the rear opening of the outlet tuyere 105 and the first outer exhaust vent 201 (ie, the rear opening of the outlet tuyere 105 is disconnected from the first outer vent 201), and at the same time, the external switch The cover 40 opens the upper opening of the outlet tuyere 105 and the second outer exhaust vent 202 (i.e., the upper opening and the second outer vent 202 of the outlet tuyere 105 are opened).
  • the range hood 100 includes a casing 20, a volute 1, a wind wheel 30, an outer switching cover 40, and an outer vent sealing plate 41.
  • the casing 20 is provided with a first outer exhaust vent 201, a second outer vent 202, and an inner vent 203.
  • the volute 1 includes a volute body 10 and an inner switching cover 103.
  • the volute body 10 includes a bottom plate 101, a top plate, and a side wall 102 disposed between the bottom plate 101 and the top plate.
  • the volute 1 is provided with an outer vent 105 that communicates with the first outer vent 201 and the second outer vent 202, and an inner vent 104 that communicates with the inner vent 203.
  • the inner switching cover 103 is movable between an open position in which the inner air outlet 104 is opened and a closed position in which the inner air outlet 104 is closed. In the open position, the outer vent seal plate 41 seals one of the first outer vent 201 and the second outer vent 202.
  • the range hood 100 has three exhaust modes: an inner exhaust mode that exhausts air into the room through the inner air outlet 104 and the inner exhaust port 203; through the outer air outlet 105 and the first outer exhaust The rear outer exhaust mode of the port 201; and the upper and outer exhaust modes through the outer air outlet 105 and the second outer air outlet 202.
  • the inner switch cover 103 is in the open position, and if the outer switch cover 40 is in the first position (ie, the first outer exhaust vent 201 is opened and the second outer vent 202 is closed), When the outer exhaust sealing plate 41 needs to seal the first outer exhaust vent 201, if the outer switching cover 40 is in the second position (ie, the first outer vent 201 is closed and the second outer vent 202 is opened), At the time, the outer exhaust sealing plate 41 needs to seal the second outer exhaust vent 202.
  • the inner switch cover 103 In the rear outer exhaust mode, the inner switch cover 103 is in the closed position, and the outer switch cover 40 is in the first position (ie, the first outer exhaust vent 201 is opened and the second outer vent 202 is closed).
  • the inner switch cover 103 is in the closed position, and the outer switch cover 40 is in the second position (ie, the first outer exhaust vent 201 is closed and the second outer vent 202 is opened).
  • the inner switching cover 30 is shaped to switch the inner and outer winds of the cover plate 103 in the closed position.
  • the portion corresponding to the port 104 forms a complete volute surface with the side panel 102.
  • the inner air outlet 104 is formed on a spiral curved surface of the curved surface of the volute.
  • the portion of the inner switch cover 103 for closing the inner air outlet 104 forms a complete volute curved surface with the side panel 102.
  • the inner air outlet 104 can be formed by cutting a part of the side panel 102, and the portion of the side panel 102 that is cut off corresponds to the inner switch cover 103 or the inner switch cover 103 corresponding to the inner air outlet 104. .
  • the inner air discharge opening 104 can be opened and closed by the inner switching cover 103 by the inner switching cover 103 which is movable between the open position and the closed position. Since the portion of the cover plate 103 corresponding to the inner air outlet 104 and the side wall 102 form a complete volute surface in the closed position, when the range hood 100 exhausts to the outside, the volute of the volute 1 The curved surface can remain intact without being damaged by the inner exhaust vent 104, thereby greatly reducing the flow loss of the airflow and improving the efficiency of the wind turbine of the range hood 100.
  • the length of the air passage between the inner air outlet 104 and the inner air outlet 203 is reduced or even no air passage, thereby being greatly reduced
  • the flow loss of the airflow increases the efficiency of the wind wheel of the range hood 100.
  • the side panel 102 includes a first side panel 1023 and a second side panel 1024 , the first end 10123 of the first side panel 1023 and the second side panel 1024 One end 1041 is spaced apart to form an inner air outlet 104, and the second end 10232 of the first side panel 1023 is spaced apart from the second end 1042 of the second side panel 1024 to form an air outlet 105.
  • the front end of the first side panel 1023 is spaced apart from the front end of the second side panel 1024 to form an inner air outlet 104, and the rear end of the first side panel 1023 is spaced from the rear end of the second side panel 1024. Open to form an outlet tuyere 105.
  • the front and rear directions are as indicated by an arrow J in FIG.
  • the inner air outlet 104 is away from the outer air outlet 105 in the circumferential direction of the side wall 102.
  • the first end 1023 of the first side panel 1023 is provided with a first limiting slot 1021
  • the first end 10412 of the second side panel 1024 is provided with a second limiting slot 1022.
  • the first end 1036 of the switch cover 103 is engaged in the first limiting slot 1021 in the closed position
  • the second end 1037 of the switch cover 103 is engaged with the second limiting slot 1022 in the open position.
  • the first limiting slot 1021 is disposed on the first end 10231 of the first side wall 1023 and the first end 1036 of the switching cover 103 is engaged in the first limiting slot 1021 in the closed position, thereby ensuring The inner air outlet 104 is completely closed to prevent the wind from leaking from the inner air outlet 104.
  • the second limiting slot 1022 is disposed on the first end 10412 of the second side panel 1024 and the second end 1037 of the switching cover 103 is engaged in the second limiting slot 1022 in the open position, thereby Internal switch cover 103 is stable The ground is maintained in the open position, thereby preventing the inner air outlet 104 from being closed when exhausting air into the room.
  • the shape of the inner switching cover 103 is adapted to the shape of a portion of the side panel 102, and the inner switching cover 103 is placed against the circumferential movement of the side panel 102 while abutting On the side panel 102.
  • the bottom plate 101 is provided with a sliding slot 1011, and the inner switching cover 103 is slidably fitted in the sliding slot 1011 so that the inner switching cover 103 opens and closes the opening of the inner air outlet 104.
  • the closed position of the inner air outlet 104 is movably disposed on the bottom plate 101.
  • the sliding slot 1011 penetrates the bottom plate 101 along the thickness direction of the bottom plate 101.
  • the inner switching cover plate 103 is provided with a card protrusion 1033 on the bottom plate 101 and a cover plate 103 for moving along the sliding slot 1011 and located at the bottom plate.
  • the operation unit 1032 below 101. That is, the bottom plate 101 can be clamped between the card protrusion 1033 and the operation portion 1032, and the user can move the inner switch cover 103 by holding the operation portion 1032.
  • the bottom plate 101 is provided with a first limiting boss 1014 and a second limiting boss 1015
  • the operating portion 1032 is provided with a first limiting hole 1034 and a
  • the second limiting hole 1035 is fitted in the first limiting hole 1034 in the closed position.
  • the second limiting boss 1015 is fitted in the second limiting hole 1035.
  • first limiting boss 1014 and the second limiting boss 1015 are respectively disposed on the lower surface of the bottom plate 101, and the first limiting hole 1034 and the second limiting hole 1035 respectively penetrate the operating portion 1032 in the up and down direction.
  • the up and down direction is as indicated by an arrow I in FIGS. 2 and 23.
  • the bottom plate 101 is provided with a first limiting post 1012 and a second limiting post 1013, and the first switching cover 103 can be restricted to the side wall 102. And moving between the first limiting post 1012 and the second limiting post 1013; thereby preventing the first switching cover 103 from swinging away from the side wall 103 when opening and closing the inner air outlet 104, Play a guiding role.
  • the front wall of the second limiting slot 1022 is rolled away from the second limiting slot 1022 to form a second limiting post 1013.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Or implicitly indicate the number of technical features indicated. Thus, features defining “first” or “second” may include at least one of the features, either explicitly or implicitly. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements, unless otherwise specified Limited.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

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Abstract

一种吸油烟机（100）及其蜗壳（1），吸油烟机（100）包括：设有第一外排风口（201）和第二外排风口（202）的机壳（20）、设在机壳（20）内的蜗壳（1）、风轮（30）和外切换盖板（40）。蜗壳（1）的蜗壳本体（10）包括底板（101）、顶板和设在底板（101）和顶板之间的侧围板（102），蜗壳本体（10）上设有与第一外排风口（201）和第二外排风口（202）连通的外出风口（105）。外出风口（105）的开口方向与第二外排风口（202）的开口方向正交。风轮（30）设在蜗壳本体（10）内。外切换盖板（40）在打开第一外排风口（201）且关闭第二外排风口（202）的第一位置与关闭第一外排风口（201）且打开第二外排风口（202）的第二位置之间可移动地设在蜗壳（1）或机壳（20）上，其中在第二位置外切换盖板（40）与第二外排风口（202）的开口方向之间的夹角α大于0°且小于90°。

Description

吸油烟机及其蜗壳 技术领域
本发明涉及一种吸油烟机和用于该吸油烟机的蜗壳。
背景技术
相关技术中，为了便于与不同位置的排风烟道相连进行室外排风，吸油烟机通常设有开口方向正交的多个排风口。设有多个排风口的吸油烟机存在风量和风压损失大、风轮效率低、噪音高的缺陷。
发明内容
本申请时基于发明人对以下事实和问题的发现作出的：
例如，相关技术中的具有多个排风口的吸油烟机的机壳上通常设有后排风口和上排风口，后排风口的开口方向与上排风口的开口方向彼此正交。当通过上排风口排风时，从而吸油压机的蜗壳的出风口排出的风与上排风口大体正交，气流通过上排放口排出时需要90度的直角转弯。由此导致气流的风量和风压有较大损失，降低了吸油烟机的风轮的效率，而且在涡流区域产生较高的噪音。
本发明旨在至少在一定程度上解决相关技术中的技术问题之一。为此，本发明提出一种具有风量和风压损失小、风轮效率高、气动噪音低等优点的吸油烟机。
本发明还提出一种所述吸油烟机的蜗壳。
根据本发明第一方面实施例的吸油烟机，包括：机壳，所述机壳上设有第一外排风口和第二外排风口；蜗壳，所述蜗壳设在所述机壳内，所述蜗壳包括蜗壳本体，所述蜗壳本体包括底板、顶板和设在所述底板与所述顶板之间的侧围板，所述蜗壳本体设有与所述第一外排风口和所述第二外排风口连通的外出风口，所述外出风口的开口方向与所述第二外排风口的开口方向正交；风轮，所述风轮设在所述蜗壳本体内；和外切换盖板，所述外切换盖板在打开所述第一外排风口且关闭所述第二外排风口的第一位置与关闭所述第一外排风口且打开所述第二外排风口的第二位置之间可移动地设在所述蜗壳或所述机壳上，其中在所述第二位置所述外切换盖板与所述第二外排风口的开口方向之间的夹角α大于零且小于90度。
根据本发明实施例的吸油烟机具有风量和风压损失小、风轮效率高、气动噪音低等优点。
在一些实施例中，所述第一外排风口的开口方向与所述第二外排风口的开口方向彼此正交。
在一些实施例中，所述夹角α大于等于30度且小于等于60度。
在一些实施例中，所述外切换盖板在所述第一位置与所述第二位置之间可枢转地设在所述侧围板上。
在一些实施例中，所述侧围板上设有卡槽，所述外切换盖板包括板体和设在所述板体上的枢轴，所述枢轴可旋转地配合在所述卡槽内。
在一些实施例中，所述第一外排风口设在所述机壳的后壁板上，所述第二外排风口设在所述机壳的顶壁板上。
在一些实施例中，所述外切换盖板为平板或曲线板。
在一些实施例中，所述机壳上设有切换板限位孔，所述外切换盖板包括板体和设在所述板体上的卡爪，其中在所述第一位置所述卡爪配合在所述切换板限位孔内。
在一些实施例中，所述吸油烟机还包括外排风口密封板，所述机壳上设有内排风口，所述蜗壳本体设有与所述内排风口连通的内出风口，所述蜗壳进一步包括内切换盖板，所述内切换盖板在打开所述内出风口的打开位置与关闭所述内出风口的关闭位置之间可移动，其中在所述打开位置，所述外排风口密封板密封所述第一外排风口和所述第二外排风口中打开的一个。
在一些实施例中，所述内切换盖板的形状为在所述关闭位置所述内切换盖板的、与所述内出风口对应的部分与所述侧围板形成完整的蜗壳曲面。
在一些实施例中，所述内出风口形成在所述蜗壳曲面的螺旋线曲面上。
在一些实施例中，所述侧围板包括第一侧围板和第二侧围板，所述第一侧围板的第一端与所述第二侧围板的第一端间隔开以便所述第一侧围板的第一端、所述第二侧围板的第一端、所述顶板和所述底板形成所述第一出风口，所述第一侧围板的第二端与所述第二侧围板的第二端间隔开以便所述第一侧围板的第二端、所述第二侧围板的第二端、所述顶板和所述底板形成所述第二出风口。
在一些实施例中，所述第一侧围板的第一端设有第一限位槽，所述第二侧围板的第一端设有第二限位槽，在所述关闭位置所述内切换盖板的第一端配合在所述第一限位槽内，在所述打开位置所述内切换盖板的第二端配合在所述第二限位槽内。
在一些实施例中，所述内切换盖板在所述打开位置与所述关闭位置之间移动时紧贴所述侧围板。
在一些实施例中，所述底板上设有沿所述底板的厚度方向贯通所述底板的滑槽，所述内切换盖板可滑动地配合在所述滑槽内，其中所述内切换盖板设有位于所述底板上面的卡 凸和用于沿所述滑槽移动所述内切换盖板且位于所述底板下面的操作部。
在一些实施例中，所述底板上设有第一限位柱和第二限位柱，在所述关闭位置所述卡凸抵靠在所述第一限位柱上，在所述打开位置所述卡凸抵靠在所述第二限位柱上。
在一些实施例中，所述底板上设有第一限位凸台和第二限位凸台，所述操作部上设有第一限位孔和第二限位孔，在所述关闭位置所述第一限位凸台配合在所述第一限位孔内，在所述打开位置所述第二限位凸台配合在所述第二限位孔内。
根据本发明第二方面实施例的蜗壳包括：蜗壳本体，所述蜗壳本体包括底板、顶板和设在所述底板与所述顶板之间的侧围板，所述蜗壳本体设有第一外出风口和第二外出风口，所述第一外出风口的开口方向与所述第二外出风口的开口方向彼此正交；和外切换盖板，所述外切换盖板在打开第一外出风口且关闭所述第二外出风口的第一位置，与关闭所述第一外出风口且打开所述第二外出风口的第二位置之间可移动地设在所述蜗壳本体上，其中在所述第二位置所述外切换盖板与所述第二外出风口的开口方向之间的夹角α大于零且小于90度。
在一些实施例中，所述夹角α大于等于30度且小于等于60度。
附图说明
图1是根据本发明实施例的吸油烟机的爆炸图，其中所述外切换盖板位于第二位置；
图2是根据本发明实施例的吸油烟机的侧剖视图；
图3是图2中的A区域的放大图；
图4是根据本发明实施例的吸油烟机的爆炸图，其中所述外切换盖板位于第一位置；
图5是根据本发明实施例的吸油烟机的侧剖视图，所述外切换盖板位于第一位置；
图6是图5中的B区域的放大图；
图7是根据本发明实施例的吸油烟机的爆炸图，其中所述外切换盖板位于第二位置；
图8是根据本发明实施例的吸油烟机的局部剖视透视示意图；
图9是根据本发明实施例的吸油烟机的局部剖视透视示意图；
图10是根据本发明实施例的吸油烟机的外切换盖板的示意图；
图11是根据本发明实施例的吸油烟机的蜗壳的透视示意图；
图12是图11中的C区域的放大图。
图13是根据本发明另一实施例的吸油烟机的透视图。
图14是图13所示吸油烟机的蜗壳的透视示意图，其中所述内切换盖板位于关闭位置；
图15是图14中的D区域的放大图；
图16是图13所示吸油烟机的蜗壳的仰视图，所述内切换盖板位于关闭位置；
图17是图16中的E区域的放大图；
图18是图13所示吸油烟机的蜗壳的俯视透视示意图，所述内切换盖板位于打开位置；
图19是图18中的F区域的放大图；
图20是根据图13所示吸油烟机的蜗壳的仰视示意图，所述内切换盖板位于打开位置；
图21是图20中的G区域的放大图；
图22是根据本发明实施例的吸油烟机的蜗壳的俯视示意图；
图23是根据本发明实施例的吸油烟机的蜗壳的仰视示意图；
图24是根据本发明实施例的蜗壳的内切换盖板的示意图；
图25是图24中的H区域的放大图。
附图标记：
吸油烟机100，蜗壳1
蜗壳本体10，外出风口105，内出风口104
底板101，滑槽1011，第一限位柱1012，第二限位柱1013，第一限位凸台1014，第二限位凸台1015，
侧围板102，第一限位槽1021，第二限位槽1022，第一侧围板1023，第一端10231，第二端10232，第二侧围板1024，第一端10241，第二端10242，卡槽1025，
内切换盖板103，本体1031，操作部1032，卡凸1033，第一限位孔1034，第二限位孔1035，第一端1036，第二端1037，
外切换盖板40，板体401，枢轴402，卡爪403，引流面404，
机壳20，第一外排风口201，第二外排风口202，内排风口203，切换板限位孔204，顶壁板205，后壁板206，侧壁板207
风轮30，外排风口密封板41，
上下方向I，前后方向J
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
下面参考图1-图25描述根据本发明实施例的吸油烟机100。如图1-图25所示，根据本发明实施例的吸油烟机100包括机壳20、蜗壳1、风轮30和外切换盖板40。
机壳20上设有第一外排风口201和第二外排风口202。蜗壳1设在机壳20内，蜗壳1包括蜗壳本体10，蜗壳本体10包括底板101、顶板和设在底板101与该顶板之间的侧围板 102。在该实施例中，蜗壳本体10的顶板由机壳20的顶壁板205的一部分构成，蜗壳本体10设有与第一外排风口201和与第二外排风口202连通的外出风口105，外出风口105的开口方向与第二外排风口202的开口方向S2大体正交，这里，正交应作广义理解，例如，外出风口105的开口方向与第二外排风口202的开口方向S2之间的夹具可以为90度±10度的范围内。风轮30设在蜗壳1内，且由电机(未示出)驱动。
外切换盖板40在打开第一外排风口201且关闭第二外排风口202的第一位置(见图4和图5)，与打开第二外排风口202且关闭第一外排风口201的第二位置(见图7和图8)之间可移动地设在蜗壳1或机壳20上。其中在所述第二位置，外切换盖板40与第二外排风口202的开口方向之间的夹角α大于零且小于90度。
换言之，外切换盖板40可以在导通外出风口105和第一外排风口201且断开外出风口105和第二外排风口202的第一位置，与断开外出风口105和第一外排风口201且导通外出风口105和第二外排风口202的第二位置之间移动，且在第二位置，外切换盖板40相对于第二外排风口202的开口方向S2倾斜，二者之间的夹角α大于零度且小于90度。更优选地，夹角α大于等于30度且小于等于60度。
在一些实施例中，第一外排风口201的开口方向S1与第二外排风口202的开口方向S2彼此大体正交。
下面，除非另有特别说明，以第一外排风口201形成在机壳20的后壁板206上且开口向后，第二外排风口202形成在机壳20的顶壁板204上且开口向上为例描述，因此第一外排风口201也可以称为后外排风口，第二外排风口202也可以称为上外排风口。可以理解的是，第一外排风口201可以形成在机壳20的侧壁板207上且第二外排风口202形成在机壳20的顶壁板207上，或者第一外排风口201可以形成在机壳20的侧壁板207上且第二外排风口202形成在机壳20的后壁板206上。
根据本发明实施例的吸油烟机100，可以选择性地通过第一外排风口201和第二外排风口202向室外排风。当外切换盖板40打开第一外排风口201且关闭第二外排风口202时，吸油烟机100可以通过第一外排风口201将风向后排出。当外切换盖板40打开第二外排风口202且关闭第一外排风口201时，吸油烟机100可以通过第二外排风口202将风向上排出。
在所述第二位置，外切换盖板40倾斜地设置，即外切换盖板40与第二外排风口202的开口方向S2(图3中的向上方向)之间的夹角α大于零且小于90度。由此外切换盖板40可以形成一个引流斜坡，引导风向上流动通过第二外排风口202排出，防止相关技术中由于外切换盖板40与第二外排风口202平行(即与第一外排风口201的开口方向S1和从外出风口105排出的气流垂直)而使气流产生90度的直角拐弯，从而可以极大地减小气流 的流动损失，提高风轮的效率，减小涡流区域以便降低气动噪音。也就是说，位于所述第二位置的外切换盖板40还进一步用作引流板。
根据本发明实施例的吸油烟机100，通过使位于所述第二位置的外切换盖板40相对于第二外排风口202倾斜地设置，从而可以使外切换盖板40形成一个引流斜坡，以便利用外切换盖板40引导风向上流动，防止气流产生90度的直角拐弯。由此不仅可以极大地减小气流的流动损失，提高风轮的效率，而且可以减小涡流区域以便降低气动噪音。
因此，根据本发明实施例的吸油烟机100具有风量和风压损失小、风轮效率高、气动噪音低等优点。
下面描述根据本发明一些具体实施例的吸油烟机100。
如图1-图12所示，在一些具体实施例中，吸油烟机100包括机壳20、蜗壳1、风轮30和外切换盖板40。
蜗壳1包括蜗壳本体10，蜗壳本体10包括底板101、顶板和设在底板101与该顶板之间的侧围板102。外切换盖板40在所述第一位置与所述第二位置之间可枢转地设在侧围板102上。
蜗壳本体10的顶板可以由机壳20的顶壁板205的一部分构成。
如图10-图12所示，外切换盖板40包括板体401以及设在板体401上的枢轴402和卡爪403。侧围板102上设有卡槽1025，卡槽1025向上敞开。枢轴402可旋转地配合在卡槽1025内，以便将外切换盖板40可枢转地安装在侧围板102上。
侧围板102的两个自由端中的第一自由端10232上设有一个卡槽1025，第二自由端10242设有一个卡槽1025。板体401上设有两个枢轴402，一个枢轴402可旋转地配合在第一自由端的卡槽1025内，另一个枢轴402可旋转地配合在第二自由端的卡槽1025内。
如图1、图4-图6、图8-图10所示，机壳20上设有切换板限位孔204，在所述第一位置，卡爪403配合在切换板限位孔204内。由此可以将外切换盖板40稳定地保持在所述第一位置，从而在利用外出风口105向室外排风时可以避免外出风口105被关闭。
切换板限位孔204可以是通孔，即切换板限位孔204可以沿上下方向贯通机壳20的顶壁板205。卡爪403可以为多个，且切换板限位孔204为多个，其中在所述第一位置，多个卡爪403一一对应地配合在多个切换板限位孔204内。由此可以将外切换盖板40更加稳定地保持在所述第一位置。
外切换盖板40可以是平板或曲线板。在所述第二位置，外切换盖板40倾斜地设置，从而外切换盖板40形成一个引流斜坡。也就是说，在所述第二位置，外切换盖板40的面对从外出风口105排出的气流的表面可以构成引流面404。
如上所述，在所述第二位置，外切换盖板40与第二外排风口202的出口方向大于0度 且小于90度，更优选地，大于等于30度且小于60度，即外切换盖板40与底板101的夹角大于等于120度且小于等于150度。由此不仅可以进一步减小气流的流动损失，进一步提高风轮的效率，而且可以进一步减小涡流区域以便进一步降低气动噪音。
在上述实施例中，外切换盖板40可枢转地设在侧围板102上，外出风口105朝向后开口且朝向上开口，从而，在第一位置，外切换盖板40打开外出风口105的后开口和第一外排风口201(即导通了外出风口105的后开口与第一外排风口201)，同时，外切换盖板40关闭外出风口105的上开口和第二外排风口202(即断开了外出风口105的上开口与第二外排风口202)。在第二位置，外切换盖板40关闭外出风口105的后开口和第一外排风口201(即断开了外出风口105的后开口与第一外排风口201)，同时，外切换盖板40打开外出风口105的上开口和第二外排风口202(即导通了外出风口105的上开口与第二外排风口202)。
下面参考图13-25描述根据本发明另一具体实施例的吸油烟机100。如图13-图25所示，吸油烟机100包括机壳20、蜗壳1、风轮30、外切换盖板40和外排风口密封板41。
如图13所示，机壳20上设有第一外排风口201、第二外排风口202和内排风口203。如图14所示，蜗壳1包括蜗壳本体10和内切换盖板103。蜗壳本体10包括底板101、顶板和设在底板101与顶板之间的侧围板102。蜗壳1设有与第一外排风口201和与第二外排风口202连通的外出风口105，以及与内排风口203连通的内出风口104。
内切换盖板103在打开内出风口104的打开位置与关闭内出风口104的关闭位置之间可移动。在所述打开位置，外排风口密封板41密封第一外排风口201和第二外排风口202中打开的一个。
换言之，在本实施例中，吸油烟机100具有三种排风模式：通过内出风口104和内排风口203向室内排风的内排风模式；通过外出风口105和第一外排风口201的后外排风模式；以及通过外出风口105和第二外排风口202的上外排风模式。
例如，在内排风模式下，内切换盖板103处于打开位置，如果外切换盖板40处于第一位置(即打开第一外排风口201且关闭第二外排风口202)，此时，外排风密封板41需要密封第一外排风口201，如果外切换盖板40处于第二位置(即关闭第一外排风口201且打开第二外排风口202)，此时，外排风密封板41需要密封第二外排风口202。
在后外排风模式下，内切换盖板103处于关闭位置，外切换盖板40处于第一位置(即打开第一外排风口201且关闭第二外排风口202)。
在上外排风模式下，内切换盖板103处于关闭位置，外切换盖板40处于第二位置(即关闭第一外排风口201且打开第二外排风口202)。
优选地，内切换盖板30的形状形成为在所述关闭位置，内切换盖板103的、与内出风 口104对应的部分与侧围板102形成完整的蜗壳曲面。更优选地，内出风口104形成在所述蜗壳曲面的螺旋线曲面上。
也就是说，在所述关闭位置，内切换盖板103的用于关闭内出风口104的部分与侧围板102形成完整的蜗壳曲面。换言之，可以通过在侧围板102上切除一部分来形成内出风口104，侧围板102上被切除的部分相当于内切换盖板103或内切换盖板103的与内出风口104对应的部分。
根据本发明实施例的，通过设置在所述打开位置与所述关闭位置之间可移动的内切换盖板103，从而可以利用内切换盖板103打开和关闭内出风口104。由于在所述关闭位置内切换盖板103的与内出风口104对应的部分与侧围板102形成完整的蜗壳曲面，因此当吸油烟机100向室外排风时，蜗壳1的蜗壳曲面可以保持完整而不会被内排风口104破坏，从而可以极大地减小气流的流动损失、提高吸油烟机100的风轮的效率。
而且，通过设置用于打开和关闭内出风口104的内切换盖板103，内出风口104与内排风口203之间的风道长度减小甚至无需风道，由此可以极大地减小气流的流动损失、提高吸油烟机100的风轮的效率。
如图13所示，在一个示例中，侧围板102包括第一侧围板1023和第二侧围板1024，第一侧围板1023的第一端10231与第二侧围板1024的第一端10241间隔开以形成内出风口104，第一侧围板1023的第二端10232与第二侧围板1024的第二端10242间隔开以形成外出风口105。
具体而言，第一侧围板1023的前端与第二侧围板1024的前端间隔开以形成内出风口104，第一侧围板1023的后端与第二侧围板1024的后端间隔开以形成外出风口105。前后方向如图21中的箭头J所示。
如图18和图22所示，在本发明的一个具体示例中，内出风口104沿侧围板102的周向远离外出风口105。
如图15和图19所示，第一侧围板1023的第一端10231设有第一限位槽1021，第二侧围板1024的第一端10241设有第二限位槽1022。其中，在所述关闭位置内切换盖板103的第一端1036配合在第一限位槽1021内，在所述打开位置内切换盖板103的第二端1037配合在第二限位槽1022内。
通过在第一侧围板1023的第一端10231上设置第一限位槽1021且在所述关闭位置内切换盖板103的第一端1036配合在第一限位槽1021内，从而可以确保完全关闭内出风口104，以便避免风从内出风口104泄露。
通过在第二侧围板1024的第一端10241上设置第二限位槽1022且在所述打开位置内切换盖板103的第二端1037配合在第二限位槽1022内，从而可以将内切换盖板103稳定 地保持在所述打开位置，由此在向室内排风时可以避免内出风口104被关闭。
有利地，如图14和图18所示，内切换盖板103的形状与侧围板102的一部分的形状适配，内切换盖板103沿侧围板102的周向移动的同时贴靠在侧围板102上。
如图16-图18所示，底板101上设有滑槽1011，内切换盖板103可滑动地配合在滑槽1011内，以便内切换盖板103在打开内出风口104的打开位置与关闭内出风口104的关闭位置之间可移动地设在底板101上。
在一些实施例中，滑槽1011沿底板101的厚度方向贯通底板101，内切换盖板103设有位于底板101上面的卡凸1033和用于沿滑槽1011移动内切换盖板103且位于底板101下面的操作部1032。也就是说，底板101可以夹持在卡凸1033与操作部1032之间，用户可以通过握持操作部1032来带动内切换盖板103移动。
如图16、图17、图20和图21所示，底板101上设有第一限位凸台1014和第二限位凸台1015，操作部1032上设有第一限位孔1034和第二限位孔1035，在所述关闭位置第一限位凸台1014配合在第一限位孔1034内，在所述打开位置第二限位凸台1015配合在第二限位孔1035内。由此可以将内切换盖板103稳定地保持在所述关闭位置和所述打开位置，从而在向室外排风时可以避免内出风口104被打开以及在向室内排风时可以避免内出风口104被关闭。
具体而言，第一限位凸台1014和第二限位凸台1015均设在底板101的下表面上，第一限位孔1034和第二限位孔1035均沿上下方向贯通操作部1032。其中，上下方向如图2和图23中的箭头I所示。
如图18和图19所示，在本发明的一个示例中，底板101上设有第一限位柱1012和第二限位柱1013，可以将第一切换盖板103限制在侧围板102和所述第一限位柱1012和第二限位柱1013之间移动；由此在打开和关闭内出风口104时，可以防止第一切换盖板103向远离侧围板103的方向摆动，起到导向的作用。
具体地，如图19所示，第二限位槽1022的前壁向远离第二限位槽1022的方向翻卷以便形成第二限位柱1013。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性 或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (19)

  1. 一种吸油烟机，其特征在于，包括：
    机壳，所述机壳上设有第一外排风口和第二外排风口；
    蜗壳，所述蜗壳设在所述机壳内，所述蜗壳包括蜗壳本体，所述蜗壳本体包括底板、顶板和设在所述底板与所述顶板之间的侧围板，所述蜗壳本体设有与所述第一外排风口和所述第二外排风口连通的外出风口，所述外出风口的开口方向与所述第二外排风口的开口方向正交；
    风轮，所述风轮设在所述蜗壳本体内；和
    外切换盖板，所述外切换盖板在打开所述第一外排风口且关闭所述第二外排风口的第一位置与关闭所述第一外排风口且打开所述第二外排风口的第二位置之间可移动地设在所述蜗壳或所述机壳上，其中在所述第二位置所述外切换盖板与所述第二外排风口的开口方向之间的夹角α大于零且小于90度。
  2. 根据权利要求1所述的吸油烟机，其特征在于，所述第一外排风口的开口方向与所述第二外排风口的开口方向彼此正交。
  3. 根据权利要求1或2所述的吸油烟机，其特征在于，所述夹角α大于等于30度且小于等于60度。
  4. 根据权利要求1-3中任一项所述的吸油烟机，其特征在于，所述外切换盖板在所述第一位置与所述第二位置之间可枢转地设在所述侧围板上。
  5. 根据权利要求4所述的吸油烟机，其特征在于，所述侧围板上设有卡槽，所述外切换盖板包括板体和设在所述板体上的枢轴，所述枢轴可旋转地配合在所述卡槽内。
  6. 根据权利要求1-5中任一项所述的吸油烟机，其特征在于，所述第一外排风口设在所述机壳的后壁板上，所述第二外排风口设在所述机壳的顶壁板上。
  7. 根据权利要求1-6中任一项所述的吸油烟机，其特征在于，所述外切换盖板为平板或曲线板。
  8. 根据权利要求1-7中任一项所述的吸油烟机，其特征在于，所述机壳上设有切换板限位孔，所述外切换盖板包括板体和设在所述板体上的卡爪，其中在所述第一位置所述卡爪配合在所述切换板限位孔内。
  9. 根据权利要求1-8中任一项所述的吸油烟机，其特征在于，所述吸油烟机还包括外排风口密封板，所述机壳上设有内排风口，所述蜗壳本体设有与所述内排风口连通的内出风口，所述蜗壳进一步包括内切换盖板，所述内切换盖板在打开所述内出风口的打开位置与关闭所述内出风口的关闭位置之间可移动，其中在所述打开位置，所述外排风口密封板密封所述第一外排风口和所述第二外排风口中打开的一个。
  10. 根据权利要求9所述的吸油烟机，其特征在于，所述内切换盖板的形状为在所述关闭位置所述内切换盖板的、与所述内出风口对应的部分与所述侧围板形成完整的蜗壳曲 面。
  11. 根据权利要求10所述的吸油烟机，其特征在于，所述内出风口形成在所述蜗壳曲面的螺旋线曲面上。
  12. 根据权利要求9所述的吸油烟机，其特征在于，所述侧围板包括第一侧围板和第二侧围板，所述第一侧围板的第一端与所述第二侧围板的第一端间隔开以便所述第一侧围板的第一端、所述第二侧围板的第一端、所述顶板和所述底板形成所述第一出风口，所述第一侧围板的第二端与所述第二侧围板的第二端间隔开以便所述第一侧围板的第二端、所述第二侧围板的第二端、所述顶板和所述底板形成所述第二出风口。
  13. 根据权利要求12的吸油烟机，其特征在于，所述第一侧围板的第一端设有第一限位槽，所述第二侧围板的第一端设有第二限位槽，在所述关闭位置所述内切换盖板的第一端配合在所述第一限位槽内，在所述打开位置所述内切换盖板的第二端配合在所述第二限位槽内。
  14. 根据权利要求10所述的吸油烟机，其特征在于，所述内切换盖板在所述打开位置与所述关闭位置之间移动时紧贴所述侧围板。
  15. 根据权利要求14的吸油烟机，其特征在于，所述底板上设有沿所述底板的厚度方向贯通所述底板的滑槽，所述内切换盖板可滑动地配合在所述滑槽内，其中所述内切换盖板设有位于所述底板上面的卡凸和用于沿所述滑槽移动所述内切换盖板且位于所述底板下面的操作部。
  16. 根据权利要求15的吸油烟机，其特征在于，所述底板上设有第一限位柱和第二限位柱，在所述关闭位置所述卡凸抵靠在所述第一限位柱上，在所述打开位置所述卡凸抵靠在所述第二限位柱上。
  17. 根据权利要求15的吸油烟机，其特征在于，所述底板上设有第一限位凸台和第二限位凸台，所述操作部上设有第一限位孔和第二限位孔，在所述关闭位置所述第一限位凸台配合在所述第一限位孔内，在所述打开位置所述第二限位凸台配合在所述第二限位孔内。
  18. 一种蜗壳，其特征在于，包括：
    蜗壳本体，所述蜗壳本体包括底板、顶板和设在所述底板与所述顶板之间的侧围板，所述蜗壳本体设有第一外出风口和第二外出风口，所述第一外出风口的开口方向与所述第二外出风口的开口方向彼此正交；和
    外切换盖板，所述外切换盖板在打开第一外出风口且关闭所述第二外出风口的第一位置，与关闭所述第一外出风口且打开所述第二外出风口的第二位置之间可移动地设在所述蜗壳本体上，其中在所述第二位置所述外切换盖板与所述第二外出风口的开口方向之间的夹角α大于零且小于90度。
  19. 根据权利要求18所述的蜗壳，其特征在于，所述夹角α大于等于30度且小于等于60度。
PCT/CN2014/091295 2014-09-12 2014-11-17 吸油烟机及其蜗壳 WO2016037414A1 (zh)

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Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD743520S1 (en) * 2013-06-20 2015-11-17 Broan-Nutone Llc Range hood
USD826392S1 (en) * 2015-06-11 2018-08-21 Broan-Nutone Llc Vent hood
EP3348912B1 (en) * 2015-09-08 2021-05-12 Guangdong Midea Kitchen Appliances Manufacturing Co., Ltd. Range hood
CN112177982A (zh) * 2019-07-01 2021-01-05 青岛经济技术开发区海尔热水器有限公司 降噪风道及燃气热水器
USD948699S1 (en) * 2020-03-27 2022-04-12 Foshan Shunde Midea Washing Appliances Manufacturing Co., Ltd. Range hood
JP7459750B2 (ja) 2020-09-30 2024-04-02 ニデック株式会社 空気流制御装置
CN113551321B (zh) * 2021-07-13 2022-07-26 珠海格力电器股份有限公司 一种用于除湿机的支架结构及具有其的除湿机
CN116085840A (zh) * 2021-11-08 2023-05-09 佛山市顺德区美的洗涤电器制造有限公司 薄型油烟机
CN115435362A (zh) * 2022-09-01 2022-12-06 杭州老板电器股份有限公司 一种烟机出风口换向导流装置及集成灶

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2297049A (en) * 1941-06-12 1942-09-29 Robert E Cotton Blower structure
US3194146A (en) * 1962-11-05 1965-07-13 Preway Inc Damper device and hood including damper
US4089328A (en) * 1976-11-02 1978-05-16 Futurumverken Ab Kitchen ventilator
CN1024296C (zh) * 1990-03-30 1994-04-20 三星电子株式会社 冷空气供给导槽装置
US6073305A (en) * 1998-03-02 2000-06-13 Hesskamp; Scott Debris blower
CN2789658Y (zh) * 2005-04-04 2006-06-21 顾建军 一种空气交换器

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2839987A (en) * 1954-03-03 1958-06-24 Emerson Pryne Company Ventilating hood construction
US2874628A (en) * 1955-05-09 1959-02-24 Emerson Pryne Company Removable ventilating hood construction
US3098423A (en) * 1961-02-10 1963-07-23 Anthony J Giannini Adjustable exhaust hood
US3145643A (en) * 1963-08-27 1964-08-25 Lau Blower Co Range hood
US3359885A (en) * 1966-01-17 1967-12-26 Preway Inc Vent hood
US3362319A (en) * 1966-01-19 1968-01-09 Home Metal Prod Co Ventilating hood with detachable bonnet
US3589266A (en) * 1969-06-24 1971-06-29 Sutton James R Air circulating stove hood
JPS58187599A (ja) * 1982-04-26 1983-11-01 Matsushita Electric Ind Co Ltd 流れ方向制御装置
US5738083A (en) 1995-01-12 1998-04-14 Turboaire S.P.A. Flow deflector for filtration hood
DE19809559A1 (de) * 1998-03-05 1999-09-09 Bosch Siemens Hausgeraete Dunstabzugshaube
CN2416417Y (zh) 1999-10-08 2001-01-24 顾建军 一种导风机
CN201476129U (zh) * 2009-06-26 2010-05-19 佛山市樱顺卫厨用品有限公司 节能高效的吸油烟机
US20110036340A1 (en) * 2009-08-17 2011-02-17 Ming-Hung Chu High efficiency range hood
DE102011000654A1 (de) 2011-02-11 2012-08-16 Miele & Cie. Kg Dunstabzugshaube für einen Herd, eine Kochstelle oder dergleichen
US9057527B2 (en) * 2012-03-12 2015-06-16 General Electric Company Range hood appliance with combination recirculation and exterior venting options
CN204313343U (zh) 2014-09-12 2015-05-06 芜湖美的厨房电器制造有限公司 吸油烟机及其蜗壳

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2297049A (en) * 1941-06-12 1942-09-29 Robert E Cotton Blower structure
US3194146A (en) * 1962-11-05 1965-07-13 Preway Inc Damper device and hood including damper
US4089328A (en) * 1976-11-02 1978-05-16 Futurumverken Ab Kitchen ventilator
CN1024296C (zh) * 1990-03-30 1994-04-20 三星电子株式会社 冷空气供给导槽装置
US6073305A (en) * 1998-03-02 2000-06-13 Hesskamp; Scott Debris blower
CN2789658Y (zh) * 2005-04-04 2006-06-21 顾建军 一种空气交换器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3112759A4 *

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US10060634B2 (en) 2018-08-28

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