WO2022062030A1 - 离心风机及其壳体结构、出风控制方法、装置及吸油烟机 - Google Patents

离心风机及其壳体结构、出风控制方法、装置及吸油烟机 Download PDF

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Publication number
WO2022062030A1
WO2022062030A1 PCT/CN2020/123714 CN2020123714W WO2022062030A1 WO 2022062030 A1 WO2022062030 A1 WO 2022062030A1 CN 2020123714 W CN2020123714 W CN 2020123714W WO 2022062030 A1 WO2022062030 A1 WO 2022062030A1
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WIPO (PCT)
Prior art keywords
volute
centrifugal fan
segment
air outlet
tongue
Prior art date
Application number
PCT/CN2020/123714
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English (en)
French (fr)
Inventor
边乐超
Original Assignee
佛山市顺德区美的洗涤电器制造有限公司
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Publication of WO2022062030A1 publication Critical patent/WO2022062030A1/zh

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    • 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
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • 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
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • 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
    • 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
    • F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
    • F04D29/283—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis rotors of the squirrel-cage 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
    • 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
    • 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
    • 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
    • F04D29/422—Discharge tongues
    • 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
    • F04D29/4233—Fan casings with volutes extending mainly in axial or radially inward direction
    • 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
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/626—Mounting or removal of fans
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • 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
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2021—Arrangement or mounting of control or safety systems

Definitions

  • the present application relates to the technical field of range hoods, and in particular, to a centrifugal fan and its casing structure, a method and device for controlling air outlet, and a range hood.
  • volute tongue in the centrifugal fan The main function of the volute tongue in the centrifugal fan is to divert the airflow at the outlet of the volute.
  • a shallow volute tongue should be used to reduce the impact of the airflow on the volute tongue and reduce noise.
  • a deep volute tongue should be used to reduce the backflow at the volute tongue, improve the back pressure resistance of the range hood, and the airflow is unevenly distributed in the axial direction of the volute.
  • volute tongue structure There is no suitable volute tongue structure in the related art. In most working conditions, it can reduce noise and increase static pressure, so it needs to be optimized.
  • the present application proposes a casing structure of a centrifugal fan, which realizes that the depth of the volute tongue can be adjusted in stages according to different working conditions, and can reduce noise and increase static pressure in most working conditions.
  • a centrifugal fan which realizes that the depth of the volute tongue can be adjusted in stages according to different working conditions, and can reduce noise and increase static pressure in most working conditions.
  • how to adjust the depth of the volute tongue in stages according to different working conditions is an urgent problem to be solved.
  • the casing structure of the centrifugal fan proposed in this application includes:
  • the volute defines an installation cavity for the centrifugal wind wheel to be installed, and an air outlet channel extending from one side of the installation cavity;
  • volute tongue located at the junction of the air outlet channel and the installation cavity, extending toward the center of the air outlet channel and protruding, and the volute tongue is at least partially retractable in its protruding direction;
  • the adjusting mechanism is used for correspondingly adjusting the telescopic and telescopic part of the volute tongue.
  • the volute tongue takes the direction in which the volute extends along the circumferential direction of the air outlet duct as its length direction, the volute tongue includes a plurality of volute tongue segments connected to each other along the length direction, at least one of which is The volute segment corresponds to an adjustable portion of the volute.
  • the volute tongue has a split surface formed at one end in the protruding direction thereof, and the split surface of each of the volute tongue segments is provided in a circular arc curved surface.
  • the plurality of volute segments includes a first volute segment and at least two second volute segments on either side of the first volute segment;
  • the radius of curvature of the split surface of the first volute segment is smaller than the radius of curvature of the split surface of the second volute segment.
  • the radius of curvature of the first volute segment is R1, and 3mm ⁇ R1 ⁇ 9mm; and/or,
  • the radius of curvature of the second volute tongue segment is R2, and 5mm ⁇ R2 ⁇ 11mm.
  • the plurality of volute segments includes a first volute segment and at least two second volute segments on either side of the first volute segment;
  • the first volute segment In the protruding direction of the volute, the first volute segment has a first adjustment position protruding outward relative to the two second volute segments, a second concave adjustment position, and a position in the first A transitional adjustment position between the adjustment position and the second adjustment position.
  • the adjustment mechanism includes a linear drive structure, the linear drive structure is mounted on the volute, and a driving end of the linear drive structure is drivingly connected to the adjustable part of the volute tongue.
  • the linear drive structure is one of an air cylinder, an oil cylinder or an electric push rod.
  • the volute tongue takes the direction in which the volute extends along the circumferential direction of the air outlet duct as its length direction;
  • a plurality of the linear driving structures are provided corresponding to the plurality of the volute tongue segments.
  • the application also proposes a centrifugal fan, the centrifugal fan includes a casing structure of the centrifugal fan and a centrifugal wind wheel, the centrifugal wind wheel is rotatably installed in the installation cavity, and the casing structure of the centrifugal fan includes:
  • the volute defines an installation cavity for the centrifugal wind wheel to be installed, and an air outlet channel extending from one side of the installation cavity;
  • volute tongue located at the junction of the air outlet channel and the installation cavity, extending toward the center of the air outlet channel and protruding, and the volute tongue is at least partially retractable in its protruding direction;
  • the adjusting mechanism is used for correspondingly adjusting the telescopic and telescopic part of the volute tongue.
  • it also includes:
  • a monitoring device for monitoring the operating parameters of the centrifugal fan
  • the control device is electrically connected to the monitoring device, and is used for controlling the action of the adjusting mechanism according to the obtained working parameters.
  • the application also proposes a range hood, the range hood includes a centrifugal fan, and the centrifugal fan includes a casing structure of the centrifugal fan and a centrifugal wind wheel, and the centrifugal wind wheel is rotatably installed in the installation cavity, so
  • the shell structure of the centrifugal fan includes:
  • the volute defines an installation cavity for the centrifugal wind wheel to be installed, and an air outlet channel extending from one side of the installation cavity;
  • volute tongue located at the junction of the air outlet channel and the installation cavity, extending toward the center of the air outlet channel and protruding, and the volute tongue is at least partially retractable in its protruding direction;
  • the adjusting mechanism is used for correspondingly adjusting the telescopic and telescopic part of the volute tongue.
  • the present application also proposes a method for controlling the air output of a centrifugal fan, and the method for controlling the air output of a centrifugal fan includes the following steps:
  • the adjustment mechanism activity is controlled according to the obtained actual adjustment parameters.
  • the present application also proposes a centrifugal fan outlet air control device, comprising: a memory, a processor, and a centrifugal fan outlet air control program stored on the memory and running on the processor, the centrifugal fan outlet air control program.
  • the program is configured to realize the steps of a centrifugal fan outlet air control method, and the centrifugal fan outlet air control method includes the following steps:
  • the first mapping relationship is a corresponding association between the working parameters and the adjustment parameters
  • the adjustment mechanism activity is controlled according to the obtained actual adjustment parameters.
  • the volute tongue extends and protrudes toward the center of the air outlet channel, the volute tongue is at least partially retractable in its protruding direction, and the adjustment mechanism is used to adjust the Part of the telescopic movement of the volute tongue can be telescopically adjusted.
  • the adjustment function of the adjustment mechanism Through the adjustment function of the adjustment mechanism, the depth of the volute tongue at different positions can be adjusted to adapt to the uneven distribution of airflow in the axial direction of the volute under different working conditions. It has the effect of reducing noise and increasing static pressure.
  • FIG. 1 is a schematic three-dimensional structure diagram of an embodiment of a centrifugal fan of the application
  • Fig. 2 is a three-dimensional schematic diagram of the co-ordination (one angle) of the volute tongue and the adjusting mechanism in Fig. 1;
  • Fig. 3 is a three-dimensional schematic diagram of the co-ordination of the volute tongue and the adjusting mechanism (another angle) in Fig. 1;
  • Fig. 4 is the control structure schematic diagram of centrifugal fan in Fig. 1;
  • FIG. 5 is a schematic three-dimensional structural diagram of an embodiment of the range hood including the centrifugal fan in FIG. 1;
  • Fig. 6 is a partial cross-sectional structural schematic diagram of the range hood in Fig. 5;
  • Fig. 7 is a partial cross-sectional three-dimensional schematic diagram of the range hood (with a first angle and a first air outlet pipe) in Fig. 5;
  • FIG. 8 is a partial cross-sectional three-dimensional schematic diagram of the range hood (with a first angle and a second air outlet pipe) in FIG. 5;
  • FIG. 9 is a partial cross-sectional three-dimensional schematic diagram of the range hood (second angle) in FIG. 5;
  • FIG. 10 is a partial cross-sectional three-dimensional schematic diagram of the range hood (third angle) in FIG. 5;
  • FIG. 11 is an enlarged schematic view of part A in FIG. 10 .
  • FIG. 12 is a schematic diagram of the server structure of the hardware operating environment involved in the solution of the embodiment of the present application.
  • FIG. 13 is a schematic flowchart of an embodiment of a method for controlling the air output of a centrifugal fan according to the present application.
  • the directional indications are only used to explain the difference between the various components in a certain posture If the specific posture changes, the directional indication also changes accordingly.
  • volute tongue in the centrifugal fan The main function of the volute tongue in the centrifugal fan is to divert the airflow at the outlet of the volute.
  • a shallow volute tongue should be used to reduce the impact of the airflow on the volute tongue and reduce noise.
  • a deep volute tongue should be used to reduce the backflow at the volute tongue, improve the back pressure resistance of the range hood, and the airflow is unevenly distributed in the axial direction of the volute.
  • volute tongue structure There is no suitable volute tongue structure in the related art. In most working conditions, it can reduce noise and increase static pressure, so it needs to be optimized.
  • the present application proposes a range hood, the range hood includes a centrifugal fan, and the centrifugal fan includes a shell structure of the centrifugal fan, as long as the centrifugal fan includes the shell structure of the centrifugal fan, it belongs to the present application Similarly, as long as the range hood containing the centrifugal fan of the present application belongs to the scope of protection of the present application, wherein, Fig. 1 to Fig. 4 are schematic diagrams of the embodiment of the centrifugal fan provided by the application, Fig. 5 10 is a schematic diagram of an embodiment of the range hood provided by the present application.
  • the casing structure of the centrifugal fan includes a volute 1 , a volute tongue 2 and an adjustment mechanism 3 , and the volute 1 defines a centrifugal fan wheel 4 .
  • the volute tongue 2 extends and protrudes toward the center of the air outlet channel 11 , the volute tongue 2 is at least partially retractable in its protruding direction, and the adjustment mechanism 3 is used for Correspondingly adjust the part of the telescopic movement of the volute tongue 2 that can be telescopically adjusted.
  • the adjustment mechanism 3 is used for Correspondingly adjust the part of the telescopic movement of the volute tongue 2 that can be telescopically adjusted.
  • the depth of the volute tongue 2 at different positions can be adjusted to adapt to the airflow in the volute under different working conditions.
  • the uneven distribution in the axial direction of 1 has the effect of reducing noise and increasing static pressure.
  • At least part of the volute tongue 2 is telescopically arranged in its protruding direction. It can be that all the volute tongues 2 can be telescopic, or part of the volute tongue 2 can be telescopic.
  • the direction of the circumferential extension of the outlet air duct is its length direction, and the volute 2 includes a plurality of volute segments that are connected to each other along its length direction, and at least one of the volute segments corresponds to the volute 2
  • the adjustable part of the volute tongue 2 is arranged in sections, and the volute tongue 2 is adjusted in sections, so as to facilitate the adjustment of the volute tongue 2.
  • the volute tongue 2 has a shunt surface formed at one end of the volute tongue segment in the protruding direction, and the shunt surface of each of the volute tongue segments is arranged in the form of an arc curved surface, which divides the flow of each of the volute tongue segments.
  • the surface is set as a curved surface to facilitate the formation of a split flow in the volute 1 and reduce airflow resistance.
  • the plurality of volute tongue segments include: The first volute section 21 and at least two second volute sections 22 on both sides of the first volute section 21, the radius of curvature of the split surface 211 of the first volute section 21 is smaller than that of the second volute.
  • the radius of curvature of the split surface 211 of the first volute segment 21 is R1, and 3mm ⁇ R1 ⁇ 9mm
  • the radius of curvature of the splitter surface 221 of the second volute segment 22 R2 is R2, and 5mm ⁇ R2 ⁇ 11mm, such setting is more conducive to the shunting of gas and reduces the backflow at the volute tongue 2.
  • the R1 is 6mm
  • the R2 is 8mm.
  • the adjustment mechanism 3 adjusts the depth of the volute tongue 2 according to different working conditions. For example, the resistance at the outlet of the fan is too large, the airflow velocity at the volute tongue 2 is small, and due to the need for smoke exhaust, it is On the premise of maintaining the air volume, the static pressure should be increased to overcome the smoke exhaust resistance.
  • volute tongue 2 protruding in the middle is used, which is conducive to the shunting of the air flow, reduces the backflow at the volute tongue 2, and increases the static pressure; the fan outlet At moderate resistance, considering the comprehensive requirements of air volume and static pressure, a relatively flat volute tongue 2 is used in the middle; if the resistance at the fan outlet is too small, the airflow velocity at the volute tongue 2 is large, and the high-speed airflow will affect the volute tongue 2. 2. The impact will generate high-frequency aerodynamic noise. Therefore, the use of the volute tongue 2 with a relatively concave middle can reduce the impact of the high-speed airflow on the volute tongue 2 and reduce the noise.
  • a plurality of the volute segments include a first volute segment 21 and at least two second volute segments 22 on both sides of the first volute segment 21 .
  • the first volute tongue segment 21 has a first adjustment position that protrudes outward relative to the two second volute tongue segments 22, a second adjustment position that is concave, and is located in the first adjustment position.
  • the second adjustment position corresponds to the ability to reduce the impact of high-speed airflow on the volute 2 and reduce noise, and the adjustment mechanism 3 adjusts the volute
  • the tongue 2 switches between the first adjustment position, the transition adjustment position and the second adjustment position to adapt to the adjustment requirements under different working conditions, and has the effect of reducing noise and increasing static pressure.
  • the first adjustment position, the second adjustment position and the transition position are not absolute positions but an adjustment range.
  • the adjusting mechanism 3 is used to correspondingly adjust the telescopic and telescopic activities of the volute tongue 2.
  • the application does not limit the specific driving method of the adjusting mechanism 3.
  • the adjusting mechanism 3 includes a linear drive structure. 31.
  • the linear drive structure 31 is installed on the volute 1, the driving end of the linear drive structure 31 is drivingly connected to the adjustable part of the volute tongue 2, and the volute tongue is driven by the linear drive structure 31 2 Adjustable part of the activity, the structure is relatively simple.
  • the application does not limit the specific structural form of the linear drive structure 31, for example, it may be one of a cylinder, an oil cylinder or an electric push rod.
  • the linear drive structure 31 is an electric push rod, which is convenient for automatic use. control occasions.
  • the linear driving structure 31 is provided with a plurality of the volute segments corresponding to the plurality of volute segments, so as to separate the volute segments.
  • the function of control and adjustment is convenient to quickly change the depth distribution of the volute tongue 2 in the length direction, so as to quickly adapt to the use requirements under different working conditions.
  • the centrifugal fan 100 proposed in the present application includes a casing structure of the centrifugal fan and a centrifugal fan wheel 4 rotatably installed in the installation cavity 12 of the casing structure of the centrifugal fan.
  • 100 includes all the technical features described in the embodiment of the casing structure of the centrifugal fan, and therefore has all the technical effects described in the embodiment of the casing structure of the centrifugal fan, which will not be repeated here.
  • the adjustment mechanism 3 of the centrifugal fan 100 in the present application is automatically adjusted by the control device 300 .
  • the centrifugal fan 100 further includes a monitoring device 200 and a control device 300 .
  • the monitoring device 200 is used to monitor the working parameters of the centrifugal fan 100
  • the control device 300 is electrically connected to the monitoring device 200, and used to control the action of the adjustment mechanism 3 according to the obtained working parameters, and automatically adjust the parameters according to different working conditions.
  • the depth distribution in the length direction of the volute tongue 2 is convenient to realize automatic adjustment and improve user experience.
  • the working parameters include at least one of the fan outlet flow velocity parameter, the fan outlet static pressure parameter, the motor power parameter and the rotor speed parameter.
  • the action parameter may be one of the above parameters, or may be any two, A combination of three and so on, so as to fully feedback the working state of the centrifugal fan 100 .
  • the monitoring device 200 includes a flow velocity measurement device disposed at the air outlet of the centrifugal fan 100 to measure the flow velocity at the air outlet of the centrifugal fan 100 .
  • the flow rate at the air outlet of the centrifugal fan 100 can be easily obtained, and the working state of the centrifugal fan 100 can be well reflected.
  • a mechanical velocity measurement technique or a hot wire velocity measurement technique can be used to quickly measure.
  • the total pressure hole 2011 of the first air velocity tube 201 is used for setting the airflow relative to the air outlet of the centrifugal fan 100, and the total gas pressure Pt on the velocity measurement tube is obtained through the total pressure hole 2011.
  • the first static pressure hole 2012 to obtain the gas static pressure Ps, through the corresponding conversion formula The flow velocity of the gas flowing through the first air velocity pipe 201 can be obtained, and the measurement method is accurate. It should be noted that the method of using the first air velocity pipe 201 to measure the air velocity of the air outlet of the centrifugal fan 100 is in the related art. Yes, it is not described in detail here.
  • the air outlet of the centrifugal fan 100 is provided with a first air outlet duct 205, and the first air outlet duct 205 is provided with a rectifying grille 202, and the rectifying grille 202 is used to connect the first air outlet duct 202.
  • the inner cavity of 205 is divided into a plurality of pipe flow channels arranged in parallel, and the first air velocity pipe 201 is located on the side of the rectifying grille 202 facing away from the air outlet of the centrifugal fan 100, and corresponds to one of the pipes.
  • the flow channel is arranged, through the rectification effect of the rectification grille 202, the air flow is evenly distributed in each of the pipe flow channels, and the gas of the local air flow measured by the first air velocity pipe 201 can be reflected on the air outlet air channel.
  • the overall gas flow rate has a good effect.
  • the rectification grill 202 includes a plurality of grid plates arranged staggered with each other, and the overall pipeline of the first air outlet duct 205 is conveniently spaced into a plurality of through the grid plates arranged staggered. Pipe runner.
  • the monitoring device 200 includes a static pressure measuring device disposed at the air outlet of the centrifugal fan 100 to measure the static pressure parameters of the air outlet of the fan, the static pressure The measuring device may be measured by a micro-pressure differential gauge.
  • the static pressure measuring device includes a second air outlet duct 206 arranged at the air outlet of the centrifugal fan 100 , and the first The second air outlet pipe 206 is provided with a second air velocity pipe 207, and the side wall of the second air velocity pipe 207 is provided with a second static pressure hole 208. In this way, the static pressure in the second air velocity pipe 207 can be easily obtained. pressure, and then obtain the static pressure parameters of the fan outlet.
  • the above-mentioned rectifying grille 202 can also be used to rectify the air flow in the second air outlet duct 206, so that the air flow is evenly distributed in the second air outlet duct 206.
  • the second air velocity pipe 207 measures the The gas in the local airflow can reflect the overall gas flow rate on the air outlet duct, which has a better effect.
  • the monitoring device 200 includes a power monitoring device to monitor the output power of the driving motor of the wind wheel. In this way, the driving of the wind wheel can be easily obtained. The output power of the motor can then well reflect the working state of the centrifugal fan 100 .
  • the power monitoring device includes a current sensor 203, which is used to monitor the current of the driving motor of the centrifugal wind wheel 4.
  • the current sensor 203 is arranged on the bus of the driving motor, and the current of the driving motor can be directly obtained, thereby the motor power of the driving motor can be easily obtained.
  • the monitoring device 200 includes a rotational speed monitoring device to monitor the rotational speed of the wind rotor. In this way, the rotational speed of the wind rotor can be easily obtained, and then the rotational speed of the wind rotor can be easily obtained. The working state of the centrifugal fan 100 is well reflected.
  • the device includes a reflected photoelectric measuring device 204, the reflected photoelectric measuring device 204 includes a laser transmitter 2041, a laser receiver 2042 and a reflection sheet 2043, the laser transmitter 2041 is arranged on the volute 1, and the laser receiver 2042 is arranged on the volute 1, and the reflection sheet 2043 is arranged on the wind rotor blade, wherein, the laser transmitter 2041 emits light, and after being reflected by the emitting sheet, it is reflected by the laser receiver 2042 Received and set in this way, the rotational speed of the centrifugal wind wheel 4 can be accurately obtained.
  • the present application also proposes a range hood 1000, the range hood 1000 includes a centrifugal fan 100, because the range hood 1000 includes all the technical features described in the embodiments of the centrifugal fan 100, it also has the centrifugal fan. All the technical effects recorded in the embodiment of 100 will not be repeated here.
  • FIG. 12 is a schematic structural diagram of the air outlet control device of the centrifugal fan of the present application.
  • the centrifugal fan outlet air control device may include: a processor 1001 , such as a CPU, a communication bus 1002 , a user interface 1003 , a network interface 1004 , and a memory 1005 .
  • the communication bus 1002 is used to realize the connection and communication between these components.
  • the user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface.
  • the network interface 1004 may include a standard wired interface and a wireless interface (eg, a WI-FI interface).
  • the memory 1005 may be high-speed RAM memory, or may be non-volatile memory, such as disk memory.
  • the memory 1005 may also be a storage device independent of the aforementioned processor 1001 .
  • FIG. 12 does not constitute a limitation on the air outlet control device of the centrifugal fan, and may include more or less components than the one shown, or combine some components, or different components layout.
  • the memory 1005 as a computer storage medium may include an operating system, a network communication module, a user interface module and a centrifugal fan outlet air control program.
  • the network interface 1004 is mainly used to connect the terminal equipment and perform data communication with the terminal equipment;
  • the user interface 1003 is mainly used to receive the input instructions of the administrator;
  • the server calls the memory 1005 through the processor 1001 Store the centrifugal fan outlet air control program and do the following:
  • the first mapping relationship is a corresponding association between the working parameters and the adjustment parameters
  • the adjustment mechanism 3 is controlled to move.
  • FIG. 13 is an embodiment of a method for controlling the air output of a centrifugal fan provided by the present application.
  • the air outlet control method of the centrifugal fan includes the following steps:
  • Step S10 obtaining the actual working parameters of the centrifugal fan 100
  • the working parameters of the centrifugal fan 100 include the flow velocity parameters of the fan outlet, the static pressure parameters of the fan outlet, the motor power parameters, and the speed parameters of the wind rotor, etc., which are mainly obtained by monitoring the monitoring device 200.
  • the fan The flow velocity parameter of the air outlet can be obtained by measuring the total pressure and static pressure through the first air velocity pipe 201, and obtained through the corresponding relationship.
  • the static pressure parameter of the air outlet of the fan can be directly measured, for example, using the static pressure pipe or the second air velocity pipe.
  • the motor power parameter can be obtained by obtaining the bus current on the driving motor of the wind wheel through the current sensor 203, for example, the rotational speed parameter of the wind wheel can be measured by a rotational speed measuring device.
  • Step S20 obtaining actual adjustment parameters according to the obtained actual working parameters and the first mapping relationship
  • the first mapping relationship is the corresponding relationship between the working parameters and the adjustment parameters, which needs to be written into the control program of the controller.
  • the steps in the control program written to the controller include:
  • the second mapping relationship corresponding to the static pressure and the air volume can be obtained.
  • the corresponding relationship between the working parameters and the air volume can be obtained, namely
  • the third mapping relationship the first mapping relationship is obtained according to the third mapping relationship and the adjustment parameter, and at this time, the adjustment parameter is associated with the working parameter.
  • Step S30 controlling the movement of the adjustment mechanism 3 according to the obtained actual adjustment parameters
  • the adjustment mechanism 3 can be directly driven to move, for example, the adjustment mechanism 3 adjusts the depth of the volute tongue 2 according to different working conditions, such as a fan
  • the resistance at the outlet is too large, the airflow velocity at the volute tongue 2 is small, and due to the need for smoke exhaust, the static pressure should be increased under the premise of maintaining the air volume to overcome the smoke exhaust resistance.
  • the volute tongue 2 is beneficial to the shunt of the air flow, reduces the backflow at the volute tongue 2, and increases the static pressure; the resistance at the outlet of the fan is moderate, considering the comprehensive demand of air volume and static pressure, the relatively flat volute tongue 2 in the middle is adopted; The resistance at the outlet is too small, the airflow velocity at the volute tongue 2 is relatively large, and the high-speed airflow will impact the volute tongue 2 and produce high-frequency aerodynamic noise. Therefore, the relatively concave volute tongue 2 in the middle can reduce high-speed The impact of the airflow on the volute tongue 2 reduces noise.
  • the present application obtains the actual working parameters of the centrifugal fan 100, obtains the actual adjustment parameters according to the obtained actual working parameters and the first mapping relationship, and controls the movement of the adjustment mechanism 3 according to the obtained actual adjustment parameters, thereby realizing automatic According to the working state of the centrifugal fan 100, the adjusting mechanism 3 is driven to adjust the movement of the volute tongue 2, so as to adapt to the uneven distribution of the airflow in the axial direction of the volute 1 under different working conditions. To reduce noise and increase the effect of static pressure.
  • the plurality of volute segments include a first volute segment 21 and at least two second volute segments 22 on both sides of the first volute segment 21 .
  • the first volute segment 21 has a first adjustment position protruding relative to the two second volute segments 22, a second adjustment position concave, and the first adjustment position and the second adjustment position.
  • the first mapping relationship is:
  • the adjustment mechanism 3 When the working parameter satisfies the first preset condition, the adjustment mechanism 3 is controlled to move, so that the first volute tongue segment 21 is in the first adjustment position;
  • the adjustment mechanism 3 When the working parameter satisfies the second preset condition, the adjustment mechanism 3 is controlled to move, so that the first volute segment 21 is in the second adjustment position;
  • the adjustment mechanism 3 When the working parameter satisfies the third preset condition, the adjustment mechanism 3 is controlled to move, so that the first volute tongue segment 21 is in the transition adjustment position.
  • the movement of the adjustment mechanism 3 can be controlled more accurately, and the uneven distribution of the airflow in the axial direction of the volute 1 under different working conditions can be better adapted. It has the effect of reducing noise and increasing static pressure.
  • the first adjustment position, the second adjustment position and the transition position are not absolute positions, but an adjustment range.
  • the control example of the centrifugal fan 100 is as follows (flow velocity v unit m/s):
  • the adjustment mechanism 3 When v ⁇ (0,8], the flow velocity parameter of the air outlet of the fan satisfies the first preset condition, and at this time, the adjustment mechanism 3 is controlled to move, so that the first volute section 21 is in the first
  • the adjustment position is that in the protruding direction of the volute 2, the first volute segment 21 has a first adjustment position protruding outward relative to the two second volute segments 22.
  • the specific protrusion of the protrusion also needs to be finely adjusted;
  • the adjustment mechanism 3 When v ⁇ (13.5, 16], the flow velocity parameter of the air outlet of the fan satisfies the second preset condition, and at this time, the adjustment mechanism 3 is controlled to move, so that the first volute tongue segment 21 is in the second position.
  • the adjustment position is that in the protruding direction of the volute 2, the first volute segment 21 has a second adjustment position that is concave relative to the two second volute segments 22.
  • the adjustment mechanism 3 is controlled to move, so that the first volute tongue segment 21 is in the transition adjustment position, that is, the position between the first adjustment position and the second adjustment position;
  • the adjustment mechanism 3 is controlled to move, so that the first volute section 21 is in the first adjustment position, that is, in the protruding direction of the volute 2, the first volute segment 21 has a first adjustment position protruding relative to the two second volute segments 22.
  • the specific protrusion of the protrusion also needs to be finely adjusted;
  • the adjustment mechanism 3 is controlled to be active, so that the first volute section 21 is in the second adjustment position, that is, in the protruding direction of the volute 2, the first volute segment 21 has a second adjustment position that is concave relative to the two second volute segments 22.
  • the specific protrusion of the concave also needs to be finely adjusted;
  • the adjustment mechanism 3 is controlled to move, so that the first volute tongue segment 21 is in the transition adjustment position , that is, the position between the first adjustment position and the second adjustment position;
  • the adjustment mechanism 3 is controlled to move, so that the first volute section 21 is in the first adjustment position, that is, in the protruding direction of the volute 2, the first volute segment 21 has a first adjustment position protruding relative to the two second volute segments 22.
  • the specific protrusion of the protrusion also needs to be finely adjusted;
  • the adjustment mechanism 3 is controlled to move, so that the first volute section 21 is in the second adjustment position, that is, in the protruding direction of the volute 2, the first volute segment 21 has a second adjustment position that is concave relative to the two second volute segments 22.
  • the specific protrusion of the concave also needs to be finely adjusted;
  • the adjustment mechanism 3 is controlled to move so that the first volute tongue segment 21 is in the transition adjustment position , that is, the position between the first adjustment position and the second adjustment position;
  • the control example of the centrifugal fan 100 is as follows (the rotational speed R is in rms):
  • the adjustment mechanism 3 is controlled to move, so that the first volute section 21 is in the first
  • the adjustment position is that in the protruding direction of the volute 2, the first volute segment 21 has a first adjustment position protruding outward relative to the two second volute segments 22.
  • the adjustment mechanism 3 is controlled to move so that the first volute section 21 is in the second
  • the adjustment position is that in the protruding direction of the volute 2, the first volute segment 21 has a second adjustment position that is concave relative to the two second volute segments 22.
  • the adjustment mechanism 3 is controlled to move, so that the first volute tongue segment 21 is in the transition
  • the adjustment position is the position between the first adjustment position and the second adjustment position.

Abstract

离心风机及其壳体结构、出风控制方法、装置和吸油烟机。离心风机的壳体结构包括蜗壳（1）、蜗舌（2）以及调整机构（3），蜗壳（1）限定出一供离心风轮（4）安装的安装腔（12）、以及自安装腔（12）的一侧延伸出的出风通道（11），蜗舌（2）设于出风通道（11）和安装腔（12）的交界处，且向出风通道（11）的中心延伸且突出设置，调整机构（3）用以调节蜗舌（2）进行伸缩活动。该离心风机的壳体结构可以调节蜗舌不同位置的深浅，起到减少噪音、增大静压的效果。

Description

离心风机及其壳体结构、出风控制方法、装置及吸油烟机
本申请要求2020年9月25日申请的，申请号为202011023119.2，名称为“离心风机及其壳体结构、出风控制方法、装置及吸油烟机”的中国专利申请的优先权，在此将其全文引入作为参考。
技术领域
本申请涉及吸油烟机技术领域，特别涉及一种离心风机及其壳体结构、出风控制方法、装置及吸油烟机。
背景技术
离心风机中蜗舌的主要作用的对蜗壳出口处的气流进行分流，在风量大出口气流速度较高时，要采用浅蜗舌，减少气流对蜗舌的冲击，降低噪声，在管道阻力较大时，要采用深蜗舌，减少蜗舌处的回流，提升吸油烟机的抗背压能力，且气流在蜗壳轴向方向分布不均匀，相关技术中没有比较合适的蜗舌结构能在大多数工况下都能起到减少噪声、增大静压的效果，需要优化。
发明内容
鉴于此，本申请提出一种离心风机的壳体结构，实现了能根据不同工况分段调节蜗舌的深浅，在大多数工况在都能起到减少噪声、增大静压的效果，然而，如何根据不同的工况分段调节蜗舌的深浅是一个亟待解决的问题。
为实现上述目的，本申请提出的离心风机的壳体结构包括：
蜗壳，限定出一供离心风轮安装的安装腔、以及自所述安装腔的一侧延伸出的出风通道；
蜗舌，设于所述出风通道和所述安装腔的交界处，且向所述出风通道的中心延伸且突出设置，所述蜗舌至少部分在其突伸方向上可伸缩设置；以及，
调整机构，用以对应调节所述蜗舌可伸缩调节的部分伸缩活动。
在一实施例中，以所述蜗壳沿所述出风风道的周向延伸的方向为其长度方向，所述蜗舌包括沿其长度方向上相互连接的多个蜗舌段，至少一所述蜗舌段对应为所述蜗舌的可调部分。
在一实施例中，所述蜗舌具有形成在其突伸方向上的一端的分流面，每一所述蜗舌段的分流面呈圆弧曲面设置。
在一实施例中，多个所述蜗舌段包括第一蜗舌段以及处于所述第一蜗舌段两侧的至少两个第二蜗舌段；
所述第一蜗舌段的分流面的曲率半径小于所述第二蜗舌段的分流面的曲率半径。
在一实施例中，所述第一蜗舌段的曲率半径为R1，且3mm≤R1≤9mm； 和/或，
所述第二蜗舌段的曲率半径为R2，且5mm≤R2≤11mm。
在一实施例中，R1＝6mm；和/或，R2＝8mm。
在一实施例中，多个所述蜗舌段包括第一蜗舌段以及处于所述第一蜗舌段两侧的至少两个第二蜗舌段；
在所述蜗舌的突伸方向上，所述第一蜗舌段具有相对两个所述第二蜗舌段外突的第一调整位置、内凹的第二调整位置以及处于所述第一调整位置和所述第二调整位置之间的过渡调整位置。
在一实施例中，所述调整机构包括直线驱动结构，所述直线驱动结构安装于所述蜗壳，所述直线驱动结构的驱动端驱动连接所述蜗舌中可调节的部分。
在一实施例中，所述直线驱动结构为气缸、油缸或者电动推杆中的一种。
在一实施例中，以所述蜗壳沿所述出风风道的周向延伸的方向为其长度方向，所述蜗舌包括沿其长度方向上相互连接的多个蜗舌段；
所述直线驱动结构对应多个所述蜗舌段设置多个。
本申请还提出一种离心风机，所述离心风机包括离心风机的壳体结构及离心风轮，所述离心风轮转动安装于所述安装腔内，所述离心风机的壳体结构包括：
蜗壳，限定出一供离心风轮安装的安装腔、以及自所述安装腔的一侧延伸出的出风通道；
蜗舌，设于所述出风通道和所述安装腔的交界处，且向所述出风通道的中心延伸且突出设置，所述蜗舌至少部分在其突伸方向上可伸缩设置；以及，
调整机构，用以对应调节所述蜗舌可伸缩调节的部分伸缩活动。
在一实施例中，还包括：
监测装置，用以监测所述离心风机的工作参数；以及，
控制装置，电连接所述监测装置，用以根据获得所述工作参数控制所述调整机构动作。
本申请还提出一种吸油烟机，所述吸油烟机包括离心风机，所述离心风机包括离心风机的壳体结构及离心风轮，所述离心风轮转动安装于所述安装腔内，所述离心风机的壳体结构包括：
蜗壳，限定出一供离心风轮安装的安装腔、以及自所述安装腔的一侧延伸出的出风通道；
蜗舌，设于所述出风通道和所述安装腔的交界处，且向所述出风通道的中心延伸且突出设置，所述蜗舌至少部分在其突伸方向上可伸缩设置；以及，
调整机构，用以对应调节所述蜗舌可伸缩调节的部分伸缩活动。
本申请还提出一种离心风机出风控制方法，所述离心风机出风控制方法包括如下步骤：
获取所述离心风机的实际工作参数；
根据获得的实际工作参数、以及第一映射关系，获得实际调节参数，其 中，所述第一映射关系为工作参数与调节参数之间对应的关联关系；
根据获得的实际调节参数，控制所述调整机构活动。
本申请还提出一种离心风机出风控制装置，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的离心风机出风控制程序，所述离心风机出风控制程序配置为实现离心风机出风控制方法的步骤，所述离心风机出风控制方法包括如下步骤：
获取所述离心风机的实际工作参数；
根据获得的实际工作参数、以及第一映射关系，获得实际调节参数，其中，所述第一映射关系为工作参数与调节参数之间对应的关联关系；
根据获得的实际调节参数，控制所述调整机构活动。
本申请的技术方案中，所述蜗舌向所述出风通道的中心延伸且突出设置，所述蜗舌至少部分在其突伸方向上可伸缩设置，所述调整机构用以对应调节所述蜗舌可伸缩调节的部分伸缩活动，通过所述调整机构的调整作用，可以调节所述蜗舌不同位置处的深浅，以适应不同工况下气流在所述蜗壳的轴向上分布不均匀的情况，起到减少噪声、增大静压的效果。
附图说明
为了更清楚地说明本申请实施例或相关技术中的技术方案，下面将对实施例或相关技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本申请离心风机的一实施例的立体结构示意图；
图2为图1中蜗舌与调整机构配合(一角度)的立体结构示意图；
图3为图1中蜗舌与调整机构配合(另一角度)的立体结构示意图；
图4为图1中离心风机的控制结构示意图；
图5为包含图1中离心风机的吸油烟机的一实施例的立体结构示意图；
图6为图5中吸油烟机的局部剖视结构示意图；
图7为图5中吸油烟机(第一角度且设有第一出风管)的局部剖视立体结构示意图；
图8为图5中吸油烟机(第一角度且设有第二出风管)的局部剖视立体结构示意图；
图9为图5中吸油烟机(第二角度)的局部剖视立体结构示意图；
图10为图5中吸油烟机(第三角度)的局部剖视立体结构示意图；
图11为图10中局部A的放大示意图。
图12为本申请实施例方案涉及的硬件运行环境的服务器结构示意图；
图13为本申请离心风机出风控制方法一实施例的流程示意图。
附图标号说明：
标号 名称 标号 名称
100 离心风机 2012 第一静压孔
1 蜗壳 202 整流格栅
11 出风通道 203 电流传感器
2 蜗舌 204 反射光电测量装置
21 第一蜗舌段 2041 激光发射器
22 第二蜗舌段 2042 激光接收器
3 调整机构 2043 反射片
31 直线驱动结构 205 第一出风管
4 离心风轮 206 第二出风管
1000 吸油烟机 207 第二风速管
200 监测装置 208 第二静压孔
201 第一风速管 300 控制装置
2011 总压孔    
本申请目的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明，若本申请实施例中有涉及方向性指示(诸如上、下、左、右、前、后……)，则该方向性指示仅用于解释在某一特定姿态下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若本申请实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其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。另外，若全文中出现的“和/或”或者“及/或”，其含义包括三个并列的方案，以“A和/或B”为例，包括A方案、或B方案、或A和B同时满足的方案。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
离心风机中蜗舌的主要作用的对蜗壳出口处的气流进行分流，在风量大出口气流速度较高时，要采用浅蜗舌，减少气流对蜗舌的冲击，降低噪声，在管道阻力较大时，要采用深蜗舌，减少蜗舌处的回流，提升吸油烟机的抗背压能力，且气流在蜗壳轴向方向分布不均匀，相关技术中没有比较合适的 蜗舌结构能在大多数工况下都能起到减少噪声、增大静压的效果，需要优化。
鉴于此，本申请提出一种吸油烟机，所述吸油烟机包括离心风机，所述离心风机包括离心风机的壳结构，只要是包含有所述离心风机的壳结构的离心风机都属于本申请的保护范围，同样地，只要是包含有本申请的离心风机的吸油烟机都属于本申请的保护范围，其中，图1至图4为本申请提供的离心风机的实施例的示意图，图5至图10为本申请提供的吸油烟机的实施例的示意图。
请参阅图1至图3，在本申请一实施例中，所述离心风机的壳体结构包括蜗壳1、蜗舌2以及调整机构3，所述蜗壳1限定出一供离心风轮4安装的安装腔12、以及自所述安装腔12的一侧延伸出的出风通道11，所述蜗舌2设于所述出风通道11和所述安装腔12的交界处，且向所述出风通道11的中心延伸且突出设置，所述蜗舌2至少部分在其突伸方向上可伸缩设置，所述调整机构3用以对应调节所述蜗舌2可伸缩调节的部分伸缩活动。
本申请的技术方案中，所述蜗舌2向所述出风通道11的中心延伸且突出设置，所述蜗舌2至少部分在其突伸方向上可伸缩设置，所述调整机构3用以对应调节所述蜗舌2可伸缩调节的部分伸缩活动，通过所述调整机构3的调整作用，可以调节所述蜗舌2不同位置处的深浅，以适应不同工况下气流在所述蜗壳1的轴向上分布不均匀的情况，起到减少噪声、增大静压的效果。
所述蜗舌2至少部分在其突伸方向上可伸缩设置，可以是全部蜗舌2都可以伸缩，也可以是部分蜗舌2可伸缩，一实施例中，以所述蜗壳1沿所述出风风道的周向延伸的方向为其长度方向，所述蜗舌2包括沿其长度方向上相互连接的多个蜗舌段，至少一所述蜗舌段对应为所述蜗舌2的可调部分，通过分段设置所述蜗舌2，并分段调节所述蜗舌2，便于所述蜗舌2的调整。
一实施例中，所述蜗舌2具有形成在其突伸方向上的一端的分流面，每一所述蜗舌段的分流面呈圆弧曲面设置，将每一所述蜗舌段的分流面设置为曲面便于在所述蜗壳1内形成分流，减少气流阻力。
所述蜗壳1在轴向平面内的气流速度分布都是不均匀的，会出现靠近中盘处流速高，两侧处流速小的状态，一实施例中，多个所述蜗舌段包括第一蜗舌段21以及处于所述第一蜗舌段21两侧的至少两个第二蜗舌段22，所述第一蜗舌段21的分流面211的曲率半径小于所述第二蜗舌段22的分流面221的曲率半径，此时对应处于中间的蜗舌段为尖蜗舌2，对应的两侧的蜗舌2为平蜗舌2，更利于气体的分流，减少所述蜗舌2处的回流。
一实施例中，请参阅图3，所述第一蜗舌段21的分流面211的曲率半径为R1，且3mm≤R1≤9mm，所述第二蜗舌段22的分流面221的曲率半径为R2，且5mm≤R2≤11mm，如此设置，更利于气体的分流，减少所述蜗舌2处的回流，较优的是，所述R1为6mm，所述R2为8mm。
所述调整机构3根据不同的工况对所述蜗舌2的深度进行调整，如，风机出口处阻力过大，所述蜗舌2处的气流流速较小，且由于排烟的需要，在保持风量的前提下要提升静压，以克服排烟阻力，此时，采用中间外突的蜗 舌2，有利于气流的分流，及减少蜗舌2处的回流，并提升静压；风机出口处阻力适中，考虑风量和静压的综合需求，采用中间相对较平的蜗舌2；风机出口处阻力过小，所述蜗舌2处的气流流速较大，高速气流会对所述蜗舌2冲击会产生高频的气动噪声，因此采用中间相对内凹的蜗舌2，能够减少高速气流对所述蜗舌2的冲击，降低噪声。
一实施例中，请参阅图2，多个所述蜗舌段包括第一蜗舌段21以及处于所述第一蜗舌段21两侧的至少两个第二蜗舌段22，在所述蜗舌2的突伸方向上，所述第一蜗舌段21具有相对两个所述第二蜗舌段22外突的第一调整位置、内凹的第二调整位置以及处于所述第一调整位置和所述第二调整位置之间的过渡调整位置，所述蜗舌2在所述第一调整位置时，所述第一调整位置对应为采用中间外突的蜗舌2，有利于气流的分流，及减少蜗舌2处的回流，并提升静压，所述第二调整位置对应为能够减少高速气流对所述蜗舌2的冲击，降低噪声，所述调整机构3调整所述蜗舌2在所述第一调整位置、过渡调整位置以及所述第二调整位置之间切换，以适应不同工况下的调整需求，起到减少噪声、增大静压的效果，需要说明的是，所述第一调整位置、第二调整位置以及所述过渡位置不是一个绝对的位置，是一个调整范围。
所述调整机构3用以对应调节所述蜗舌2可伸缩调节的部分伸缩活动，本申请不限制所述调整机构3的具体驱动方式，一实施例中，所述调整机构3包括直线驱动结构31，所述直线驱动结构31安装于所述蜗壳1，所述直线驱动结构31的驱动端驱动连接所述蜗舌2中可调节的部分，通过所述直线驱动结构31驱动所述蜗舌2可调节的部分活动，结构相对简单。
本申请不限制所述直线驱动结构31的具体结构形式，如，可以是气缸、油缸或者电动推杆中的一种，一实施例中，所述直线驱动结构31为电动推杆，便于使用自动控制的场合。
在所述蜗舌2包括多个蜗舌段，且每一所述蜗舌段均可调整的实施例中，所述直线驱动结构31对应多个所述蜗舌段设置多个，起到了分别控制调整的作用，便于快速改变所述蜗舌2长度方向的深浅分布，以快速适应不同工况下的使用需求。
请参阅图4至图6，本申请提出的离心风机100包括离心风机的壳体结构以及转动安装于所述离心风机的壳体结构的安装腔12内的离心风轮4，由于所述离心风机100包括上述离心风机的壳体结构的实施例中记载的全部技术特征，也因此具有上述离心风机的壳体结构的实施例中记载的全部技术效果，此处不在一一赘述。
请参阅图4，本申请中的离心风机100的调整机构3是通过控制装置300实现自动调节的，一实施例中，所述离心风机100还包括监测装置200以及控制装置300，所述监测装置200用以监测所述离心风机100的工作参数，所述控制装置300电连接所述监测装置200，用以根据获得所述工作参数控制所述调整机构3动作，根据不同的工况自动调节所述蜗舌2长度方向的深浅分布，便于实现自动化调整，提高用户体验。
不同的工作参数均可以反应所述离心风机100的工作状态，一实施例中，所述工作参数包括风机出风口流速参数、风机出风口静压参数、电机功率参数以及风轮转速参数中的至少一种，需要说明的是，在所述控制装置300根据获得所述工作参数控制所述调整机构3动作中，所述动作参数可以是上述参数中的一种，也可以是任意的两种、三种等等的组合形式，以便全面反馈所述离心风机100的工作状态。
为了获得所述风机出风口流速参数，一实施例中，所述监测装置200包括设于所述离心风机100的出风口处的流速测量装置，用以测量所述离心风机100的出风口处的流速，如此，可以很方便地获得所述离心风机100的出风口处的流速，进而可以很好地反应出所述离心风机100的工作状态。
测量所述离心风机100的出风口处的流速，可以采用机械式测速技术或者热线测速技术来快速测量，一实施例中，请参阅图7，所述流速测量装置包括第一风速管201，所述第一风速管201的总压孔2011用以相对所述离心风机100的出风口的气流设置，通过所述总压孔2011获得所述测速管上的气体总压Pt，第一静压孔2012获得气体静压Ps，通过对应的换算公式
Figure PCTCN2020123714-appb-000001
即可获得流经所述第一风速管201的气体流速，如此测量方式测量准确，需要说明的是，采用所述第一风速管201测量所述离心风机100出风口风速的方式在相关技术中有采用，此处不作详细的叙述。
所述离心风机100出风口处的风速的气流不均匀，布设所述第一风速管201测得的气流的流速不能较好地反应整个所述出风风道上的气体流动状态，一实施例中，所述离心风机100的出风口设有第一出风管205，所述第一出风管205内设有整流格栅202，所述整流格栅202用以将所述第一出风管205的内腔分隔成多个平行设置的管流道，所述第一风速管201处于所述整流格栅202背向所述离心风机100出风口的一侧，且对应其中之一所述管流道设置，通过所述整流格栅202的整流作用，气流在每一所述管流道内均匀分布，所述第一风速管201测得的局部气流的气体即可反应所述出风风道上整体的气体流速情况，具有较好的效果。
一实施例中，所述整流格栅202包括相互交错设置的多个格栅板，通过交错设置的格栅板，很方便地将所述第一出风管205的整体管路间隔成多个管流道。
为了获得所述风机出风口静压参数，所述监测装置200包括设于所述离心风机100的出风口处的静压测量装置，用以测量所述风机出风口静压参数，所述静压测量装置可以是通过微压差计测量，一实施例中，请参阅图8，所述静压测量装置包括设于所述离心风机100的出风口处的第二出风管206，所述第二出风管206内设有第二风速管207，所述第二风速管207的侧壁设有第二静压孔208，如此，可以很方便地获得所述第二风速管207内的静压，进而获得所述风机出风口静压参数。
当然，也可以采用上述的整流格栅202来对所述第二出风管206内的气 流整流，使得气流在所述第二出风管206内均匀分布，所述第二风速管207测得的局部气流的气体即可反应所述出风风道上整体的气体流速情况，具有较好的效果。
为了获得所述电机功率参数，一实施例中，所述监测装置200包括功率监测装置，用以监测所述风轮的驱动电机的输出功率，如此，可以很方便地获得所述风轮的驱动电机的输出功率，进而可以很好地反应出所述离心风机100的工作状态。
监测所述风轮的驱动电机的输出功率，一实施例中，请参阅图9，所述功率监测装置包括电流传感器203，用以监测所述离心风轮4的驱动电机的电流，可以在所述驱动电机的母线上设置所述电流传感器203，直接获得所述驱动电机的电流，进而可以很方便地获得所述驱动电机的电机功率。
为了获得所述风轮转速参数，一实施例中，所述监测装置200包括转速监测装置，用以监测所述风轮的转速，如此，可以很方便地获得所述风轮的转速，进而可以很好地反应出所述离心风机100的工作状态。
监测所述离心风轮4的转速，可以采用光电码盘测速法、霍尔元件测速法、漏磁测速法等等测速方式，一实施例中，请参阅图10及图11，所述转速监测装置包括反射光电测量装置204，所述反射光电测量装置204包括激光发射器2041、激光接收器2042以及反射片2043，所述激光发射器2041设于所述蜗壳1上，所述激光接收器2042设于所述蜗壳1上，所述反射片2043设于所述风轮叶片上，其中，所述激光发射器2041发出光线，经所述发射片反射后，被所述激光接收器2042接收，如此设置，可以精确地获得所述离心风轮4的转速。
本申请还提出一种吸油烟机1000，所述吸油烟机1000包括离心风机100，由于所述吸油烟机1000包括上述离心风机100的实施例中记载的全部技术特征，也因此具有上述离心风机100的实施例中记载的全部技术效果，此处不在一一赘述。
参照图12，图12为本申请离心风机出风控制装置的结构示意图。
如图12所示，该离心风机出风控制装置可以包括：处理器1001，例如CPU，通信总线1002、用户接口1003，网络接口1004，存储器1005。其中，通信总线1002用于实现这些组件之间的连接通信。用户接口1003可以包括显示屏(Display)、输入单元比如键盘(Keyboard)，可选用户接口1003还可以包括标准的有线接口、无线接口。网络接口1004可选的可以包括标准的有线接口、无线接口(如WI-FI接口)。存储器1005可以是高速RAM存储器，也可以是稳定的存储器(non-volatile memory)，例如磁盘存储器。存储器1005可选的还可以是独立于前述处理器1001的存储装置。
本领域技术人员可以理解，图12中示出的结构并不构成对离心风机出风控制装置的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
如图12所示，作为一种计算机存储介质的存储器1005中可以包括操作系 统、网络通信模块、用户接口模块以及离心风机出风控制程序。
在图12所示的服务器中，网络接口1004主要用于连接终端设备，与终端设备进行数据通信；用户接口1003主要用于接收管理员的输入指令；所述服务器通过处理器1001调用存储器1005中存储的离心风机出风控制程序，并执行以下操作：
获取所述离心风机100的实际工作参数；
根据获得的实际工作参数、以及第一映射关系，获得实际调节参数，其中，所述第一映射关系为工作参数与调节参数之间对应的关联关系；
根据获得的实际调节参数，控制所述调整机构3活动。
基于上述硬件结构，图13为本申请提供的离心风机出风控制方法的实施例。
请参照图13，在本实施例中，所述离心风机出风控制方法包括以下步骤：
步骤S10、获取所述离心风机100的实际工作参数；
需要说明的是，所述离心风机100的工作参数包括风机出风口流速参数、风机出风口静压参数、电机功率参数以及风轮转速参数等等，主要是通过监测装置200监控获得，如，风机出风口流速参数可以通过第一风速管201测量总压和静压，并通过对应的关系式获得，如，风机出风口静压参数可以直接测量得到，如，采用静压管或者第二风速管207直接测量，如，电机功率参数可以通过电流传感器203获取所述风轮的驱动电机上的母线电流即可获得，如，风轮转速参数可以通过转速测量装置测量。
步骤S20、根据获得的实际工作参数、以及第一映射关系，获得实际调节参数；
需要说明的是，所述第一映射关系为工作参数与调节参数之间对应的关联关系，是需要写入控制器的控制程序中的，对于一个特定的机型，有特定的对应关系，具体写入控制器的控制程序中的步骤包括：
获得所述离心风机100静压与风量对应的第二映射关系；
根据第二映射关系以及工作参数获得第三映射关系，其中，所述第三映射关系为工作参数与风量之间的对应的关联关系；
根据第三映射关系以及调节参数获得所述第一映射关系；
需要说明的是，对于某一特定的机型，对其进行空气性能测试时，即可获得静压与风量对应的第二映射关系，根据流量换算，得到工作参数与风量之间对应的关系即为第三映射关系，根据第三映射关系以及调节参数获得所述第一映射关系，此时以将所述调节参数与所述工作参数关联起来。
步骤S30、根据获得的实际调节参数，控制所述调整机构3活动；
需要说明的是，获得了所述实际调节参数后，可以直接驱动所述调整机构3活动，如，所述调整机构3根据不同的工况对所述蜗舌2的深度进行调整，如，风机出口处阻力过大，所述蜗舌2处的气流流速较小，且由于排烟的需要，在保持风量的前提下要提升静压，以克服排烟阻力，此时，采用中间外突的蜗舌2，有利于气流的分流，及减少蜗舌2处的回流，并提升静压； 风机出口处阻力适中，考虑风量和静压的综合需求，采用中间相对较平的蜗舌2；风机出口处阻力过小，所述蜗舌2处的气流流速较大，高速气流会对所述蜗舌2冲击会产生高频的气动噪声，因此采用中间相对内凹的蜗舌2，能够减少高速气流对所述蜗舌2的冲击，降低噪声。
本申请通过获取所述离心风机100的实际工作参数，根据获得的实际工作参数、以及第一映射关系，获得实际调节参数，根据获得的实际调节参数，控制所述调整机构3活动，实现了自动根据所述离心风机100的工作状态，来驱动所述调整机构3来调整所述蜗舌2活动，以适应不同工况下气流在所述蜗壳1的轴向上分布不均匀的情况，起到减少噪声、增大静压的效果。
一实施例中，多个所述蜗舌段包括第一蜗舌段21以及处于所述第一蜗舌段21两侧的至少两个第二蜗舌段22，在所述蜗舌2的突伸方向上，所述第一蜗舌段21具有相对两个所述第二蜗舌段22外突的第一调整位置、内凹的第二调整位置以及处于所述第一调整位置和所述第二调整位置之间的过渡调整位置，所述第一映射关系为：
当所述工作参数满足第一预设条件时，控制所述调整机构3活动，以使得所述第一蜗舌段21处于所述第一调整位置；
当所述工作参数满足第二预设条件时，控制所述调整机构3活动，以使得所述第一蜗舌段21处于所述第二调整位置；
当所述工作参数满足第三预设条件时，控制所述调整机构3活动，以使得所述第一蜗舌段21处于所述过渡调整位置。
本申请的实施例中，通过设置不同的预设条件，更精准地控制所述调整机构3活动，更能适应不同工况下气流在所述蜗壳1的轴向上分布不均匀的情况，起到减少噪声、增大静压的效果，同时，也需要说明的是，所述第一调整位置、第二调整位置以及所述过渡位置不是一个绝对的位置，是一个调整范围。
需要说明的是，根据不同的工作参数，有不同的预设条件，以下以不同的工作参数条件下，以不同的预设条件来驱动所述调整机构3活动来说明：
1、当所述工作参数为风机出风口流速参数时，根据某一特定型号的离心风机100的控制实例如下(流速v单位m/s)：
当v∈(0,8]时，所述风机出风口流速参数满足第一预设条件，此时，控制所述调整机构3活动，以使得所述第一蜗舌段21处于所述第一调整位置，即为在所述蜗舌2的突伸方向上，所述第一蜗舌段21具有相对两个所述第二蜗舌段22外突的第一调整位置，在所述第一调整位置处，外突的具体突出量也需要进行精细调整；
当v∈(13.5,16]时，所述风机出风口流速参数满足第二预设条件，此时，控制所述调整机构3活动，以使得所述第一蜗舌段21处于所述第二调整位置，即为在所述蜗舌2的突伸方向上，所述第一蜗舌段21具有相对两个所述第二蜗舌段22内凹的第二调整位置，在所述第二调整位置处，内凹的具体突出量也需要进行精细调整；
当v∈(8,13.5]时，所述风机出风口流速参数满足第三预设条件，此时，控制所述调整机构3活动，以使得所述第一蜗舌段21处于所述过渡调整位置，即为处于所述第一调整位置和第二调整位置之间的位置；
2、当所述工作参数为风机出风口静压参数时，根据某一特定型号的离心风机100的控制实例如下(静压Ps单位Pa)：
当P s∈[300,430)时，所述风机出风口流速参数满足第一预设条件，此时，控制所述调整机构3活动，以使得所述第一蜗舌段21处于所述第一调整位置，即为在所述蜗舌2的突伸方向上，所述第一蜗舌段21具有相对两个所述第二蜗舌段22外突的第一调整位置，在所述第一调整位置处，外突的具体突出量也需要进行精细调整；
当P s∈[0,150)时，所述风机出风口流速参数满足第二预设条件，此时，控制所述调整机构3活动，以使得所述第一蜗舌段21处于所述第二调整位置，即为在所述蜗舌2的突伸方向上，所述第一蜗舌段21具有相对两个所述第二蜗舌段22内凹的第二调整位置，在所述第二调整位置处，内凹的具体突出量也需要进行精细调整；
当P s∈[150,300)时，所述风机出风口流速参数满足第三预设条件，此时，控制所述调整机构3活动，以使得所述第一蜗舌段21处于所述过渡调整位置，即为处于所述第一调整位置和第二调整位置之间的位置；
3、当所述工作参数为电机功率参数时，根据某一特定型号的离心风机100的控制实例如下(功率P单位W)：
当P s∈[135,190)时，所述风机出风口流速参数满足第一预设条件，此时，控制所述调整机构3活动，以使得所述第一蜗舌段21处于所述第一调整位置，即为在所述蜗舌2的突伸方向上，所述第一蜗舌段21具有相对两个所述第二蜗舌段22外突的第一调整位置，在所述第一调整位置处，外突的具体突出量也需要进行精细调整；
当P s∈[240,255)时，所述风机出风口流速参数满足第二预设条件，此时，控制所述调整机构3活动，以使得所述第一蜗舌段21处于所述第二调整位置，即为在所述蜗舌2的突伸方向上，所述第一蜗舌段21具有相对两个所述第二蜗舌段22内凹的第二调整位置，在所述第二调整位置处，内凹的具体突出量也需要进行精细调整；
当P s∈[190,240)时，所述风机出风口流速参数满足第三预设条件，此时，控制所述调整机构3活动，以使得所述第一蜗舌段21处于所述过渡调整位置，即为处于所述第一调整位置和第二调整位置之间的位置；
4、当所述工作参数为风轮转速参数时，根据某一特定型号的离心风机100的控制实例如下(转速R单位rms)：
当R∈[1350,1450)时，所述风机出风口流速参数满足第一预设条件，此时，控制所述调整机构3活动，以使得所述第一蜗舌段21处于所述第一调整位置，即为在所述蜗舌2的突伸方向上，所述第一蜗舌段21具有相对两个所述第二 蜗舌段22外突的第一调整位置，在所述第一调整位置处，外突的具体突出量也需要进行精细调整；
当R∈[1100,1250)时，所述风机出风口流速参数满足第二预设条件，此时，控制所述调整机构3活动，以使得所述第一蜗舌段21处于所述第二调整位置，即为在所述蜗舌2的突伸方向上，所述第一蜗舌段21具有相对两个所述第二蜗舌段22内凹的第二调整位置，在所述第二调整位置处，内凹的具体突出量也需要进行精细调整；
当P s∈[1250,1350)时，所述风机出风口流速参数满足第三预设条件，此时，控制所述调整机构3活动，以使得所述第一蜗舌段21处于所述过渡调整位置，即为处于所述第一调整位置和第二调整位置之间的位置。
以上所述仅为本申请的可选实施例，并非因此限制本申请的专利范围，凡是在本申请的发明构思下，利用本申请说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。

Claims (15)

  1. 一种离心风机的壳体结构，其中，包括：
    蜗壳，限定出一供离心风轮安装的安装腔、以及自所述安装腔的一侧延伸出的出风通道；
    蜗舌，设于所述出风通道和所述安装腔的交界处，且向所述出风通道的中心延伸且突出设置，所述蜗舌至少部分在其突伸方向上可伸缩设置；以及，
    调整机构，用以对应调节所述蜗舌可伸缩调节的部分伸缩活动。
  2. 如权利要求1所述的离心风机的壳体结构，其中，以所述蜗壳沿所述出风风道的周向延伸的方向为其长度方向，所述蜗舌包括沿其长度方向上相互连接的多个蜗舌段，至少一所述蜗舌段对应为所述蜗舌的可调部分。
  3. 如权利要求2所述的离心风机的壳体结构，其中，所述蜗舌具有形成在其突伸方向上的一端的分流面，每一所述蜗舌段的分流面呈圆弧曲面设置。
  4. 如权利要求3所述的离心风机的壳体结构，其中，多个所述蜗舌段包括第一蜗舌段以及处于所述第一蜗舌段两侧的至少两个第二蜗舌段；
    所述第一蜗舌段的分流面的曲率半径小于所述第二蜗舌段的分流面的曲率半径。
  5. 如权利要求4所述的离心风机的壳体结构，其中，所述第一蜗舌段的曲率半径为R1，且3mm≤R1≤9mm；和/或，
    所述第二蜗舌段的曲率半径为R2，且5mm≤R2≤11mm。
  6. 如权利要求5所述的离心风机的壳体结构，其中，R1＝6mm；和/或，R2＝8mm。
  7. 如权利要求2所述的离心风机的壳体结构，其中，多个所述蜗舌段包括第一蜗舌段以及处于所述第一蜗舌段两侧的至少两个第二蜗舌段；
    在所述蜗舌的突伸方向上，所述第一蜗舌段具有相对两个所述第二蜗舌段外突的第一调整位置、内凹的第二调整位置以及处于所述第一调整位置和所述第二调整位置之间的过渡调整位置。
  8. 如权利要求1所述的离心风机的壳体结构，其中，所述调整机构包括直线驱动结构，所述直线驱动结构安装于所述蜗壳，所述直线驱动结构的驱动端驱动连接所述蜗舌中可调节的部分。
  9. 如权利要求8所述的离心风机的壳体结构，其中，所述直线驱动结构为气缸、油缸或者电动推杆中的一种。
  10. 如权利要求8所述的离心风机的壳体结构，其中，以所述蜗壳沿所述出风风道的周向延伸的方向为其长度方向，所述蜗舌包括沿其长度方向上相互连接的多个蜗舌段；
    所述直线驱动结构对应多个所述蜗舌段设置多个。
  11. 一种离心风机，其中，包括：
    离心风机的壳体结构，为如权利要求1至10任意一项所述的离心风机的 壳体结构；以及，
    离心风轮，转动安装于所述安装腔内。
  12. 如权利要求11所述的离心风机，其中，还包括：
    监测装置，用以监测所述离心风机的工作参数；以及，
    控制装置，电连接所述监测装置，用以根据获得所述工作参数控制所述调整机构动作。
  13. 一种吸油烟机，其中，包括如权利要求11至12任意一项所述的离心风机。
  14. 一种离心风机出风控制方法，所述离心风机为如权利要求11至12任意一项所述的离心风机，其中，所述离心风机出风控制方法包括如下步骤：
    获取所述离心风机的实际工作参数；
    根据获得的实际工作参数、以及第一映射关系，获得实际调节参数，其中，所述第一映射关系为工作参数与调节参数之间对应的关联关系；
    根据获得的实际调节参数，控制所述调整机构活动。
  15. 一种离心风机出风控制装置，其中，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的离心风机出风控制程序，所述离心风机出风控制程序配置为实现如权利要求14所述的离心风机出风控制方法的步骤。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114738835A (zh) * 2022-04-20 2022-07-12 珠海格力电器股份有限公司 新风装置、空调器以及新风控制方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114251287B (zh) * 2020-09-25 2024-04-26 佛山市顺德区美的洗涤电器制造有限公司 离心风机、出风控制方法、装置及吸油烟机
CN114251283B (zh) * 2020-09-25 2024-04-26 佛山市顺德区美的洗涤电器制造有限公司 离心风机、出风控制方法、装置及吸油烟机
CN114251285B (zh) * 2020-09-25 2024-04-26 佛山市顺德区美的洗涤电器制造有限公司 离心风机、出风控制方法、装置及吸油烟机
CN114251284B (zh) * 2020-09-25 2024-04-26 佛山市顺德区美的洗涤电器制造有限公司 离心风机、出风控制方法、装置及吸油烟机
CN117386668B (zh) * 2023-12-07 2024-03-26 珠海格力电器股份有限公司 蜗舌组件和空调器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54122408A (en) * 1978-03-15 1979-09-22 Matsushita Electric Ind Co Ltd Blower
WO2015048231A1 (en) * 2013-09-30 2015-04-02 Borgwarner Inc. Controlling turbocharger compressor choke
CN105864994A (zh) * 2016-05-11 2016-08-17 广东美的制冷设备有限公司 空调器的风道组件及空调器
CN105987024A (zh) * 2015-02-12 2016-10-05 宁波方太厨具有限公司 一种蜗舌可动态调整的离心风机
CN206000764U (zh) * 2016-08-19 2017-03-08 宁波方太厨具有限公司 一种离心风机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3838200B2 (ja) * 2003-01-09 2006-10-25 株式会社デンソー 遠心式送風装置
CN105090118B (zh) * 2015-08-27 2017-09-05 江苏大学 一种隔舌间隙精确可调的自吸离心泵泵体
JP6767611B2 (ja) * 2016-03-25 2020-10-14 パナソニックＩｐマネジメント株式会社 エアカーテン
CN111156198A (zh) * 2019-08-31 2020-05-15 浙江理工大学 一种带阶梯变半径蜗舌的蜗壳及离心通风机
CN110864010A (zh) * 2019-12-10 2020-03-06 珠海格力电器股份有限公司 新型蜗舌结构、风机蜗壳及风机

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54122408A (en) * 1978-03-15 1979-09-22 Matsushita Electric Ind Co Ltd Blower
WO2015048231A1 (en) * 2013-09-30 2015-04-02 Borgwarner Inc. Controlling turbocharger compressor choke
CN105987024A (zh) * 2015-02-12 2016-10-05 宁波方太厨具有限公司 一种蜗舌可动态调整的离心风机
CN105864994A (zh) * 2016-05-11 2016-08-17 广东美的制冷设备有限公司 空调器的风道组件及空调器
CN206000764U (zh) * 2016-08-19 2017-03-08 宁波方太厨具有限公司 一种离心风机

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114738835A (zh) * 2022-04-20 2022-07-12 珠海格力电器股份有限公司 新风装置、空调器以及新风控制方法
CN114738835B (zh) * 2022-04-20 2024-02-27 珠海格力电器股份有限公司 新风装置、空调器以及新风控制方法

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