WO2020155430A1 - 风叶、风机组件、风道部件及空调器 - Google Patents

风叶、风机组件、风道部件及空调器 Download PDF

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Publication number
WO2020155430A1
WO2020155430A1 PCT/CN2019/084120 CN2019084120W WO2020155430A1 WO 2020155430 A1 WO2020155430 A1 WO 2020155430A1 CN 2019084120 W CN2019084120 W CN 2019084120W WO 2020155430 A1 WO2020155430 A1 WO 2020155430A1
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WO
WIPO (PCT)
Prior art keywords
air duct
fan assembly
hub
motor
blade
Prior art date
Application number
PCT/CN2019/084120
Other languages
English (en)
French (fr)
Inventor
汪先送
陈良锐
张滔
袁宏亮
蔡序杰
Original Assignee
广东美的制冷设备有限公司
美的集团股份有限公司
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 CN201920176748.5U external-priority patent/CN210118279U/zh
Priority claimed from CN201910093439.6A external-priority patent/CN109854533A/zh
Application filed by 广东美的制冷设备有限公司, 美的集团股份有限公司 filed Critical 广东美的制冷设备有限公司
Publication of WO2020155430A1 publication Critical patent/WO2020155430A1/zh

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00Pumping installations or systems
    • F04D25/02Units comprising pumps and their driving means
    • F04D25/08Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/32Rotors specially for elastic fluids for axial flow pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/32Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38Blades
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/66Combating cavitation, whirls, noise, vibration or the like; Balancing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0018Indoor units, e.g. fan coil units characterised by fans
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0018Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0033Indoor units, e.g. fan coil units characterised by fans having two or more fans
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening

Definitions

  • This application relates to the field of air treatment, in particular to a fan blade, fan assembly, air duct component and air conditioner.
  • This application aims to solve at least one of the technical problems existing in the prior art. For this reason, one purpose of the present application is to provide a wind blade which has the advantages of small size, large air output, and low wind noise.
  • Another objective of the present application is to provide a fan assembly having the above-mentioned fan blades.
  • Another objective of the present application is to provide an air duct component having the fan assembly as described above.
  • Another object of the present application is to provide an air conditioner having the air duct components as described above.
  • the wind blade according to the embodiment of the present application includes: a hub with a mounting cavity in the hub for accommodating at least part of the motor; and a plurality of blades, the blades being arranged on the outer peripheral wall of the hub.
  • the fan blade of the embodiment of the present application by providing a mounting cavity on the hub for accommodating the motor, the overall volume of the fan blade and the motor after assembly can be reduced, and the motor can be prevented from being exposed to the inside of the air duct too much. Reduce air noise and increase air output.
  • the point on the blade farthest from the axis of rotation of the hub is located on a reference circle, the diameter of the reference circle is D1, and the diameter of the outer peripheral wall of the hub is D2, where 0.15 ⁇ D2/D1 ⁇ 0.6.
  • the ratio of D2 to D1 satisfies: 0.3 ⁇ D2/D1 ⁇ 0.5.
  • the height of the blade is H
  • the point on the blade farthest from the axis of rotation of the hub is located on a reference circle, and the reference circle
  • the diameter of is D1, where 0.05 ⁇ H/D1 ⁇ 0.5.
  • the ratio of H to D1 satisfies: 0.1 ⁇ H/D1 ⁇ 0.2.
  • the hub has a sleeve and a connecting portion, the sleeve is connected to the hub through the connecting portion, the end surface of one end of the sleeve is located in the mounting cavity, and the sleeve The end surface of the other end is located outside the installation cavity, and the sleeve is suitable for connecting with the power output shaft of the motor to drive the wheel hub to rotate.
  • the vertical distance between the end surface of the one end of the sleeve and the end surface of the hub facing the motor is L1
  • the blade The height is H, where 0.2 ⁇ L1/H ⁇ 1.2.
  • the vertical distance between the end surface of the other end of the sleeve and the end surface of the hub facing away from the motor is L2, and in the direction of the rotation axis of the hub, the blade The height of is H, where 0.25 ⁇ L2/H ⁇ 0.63.
  • the connecting portion has a strip shape.
  • the surface of the connecting portion facing the inside of the installation cavity has an escape groove for avoiding the motor.
  • the hub is cylindrical.
  • the fan assembly includes a motor and the fan blade as described above, and at least part of the motor is located in the fan blade installation cavity.
  • the fan assembly of the embodiment of the present application by providing a mounting cavity on the hub for accommodating the motor, that is, in the axial direction of the hub, at least part of the motor overlaps with the hub, thereby reducing the fan assembly on the hub.
  • the size in the axial direction can reduce the overall volume of the fan assembly and avoid excessive exposure of the motor to the inside of the air duct, thereby reducing the air noise and increasing the air output.
  • the fan assembly is an axial fan or a diagonal fan.
  • the air duct component according to the embodiment of the present application includes: an air duct mounting plate and the above-mentioned fan assembly, and the fan assembly is connected to the air duct mounting plate.
  • the air duct component of the embodiment of the present application by providing a mounting cavity on the hub for accommodating the motor, that is, in the axial direction of the hub, at least part of the motor overlaps with the hub, thereby reducing the fan assembly
  • the size in the axial direction of the wheel hub can reduce the overall volume of the fan assembly, avoid excessive exposure of the motor to the inside of the air duct, thereby reducing the air noise and increasing the air output.
  • the air duct mounting plate is provided with an enclosure, the motor is connected to the enclosure through a motor bracket, the enclosure defines an air duct, and the fan assembly is located in the air duct.
  • the minimum distance between the blade and the motor support is L3
  • the point on the blade farthest from the axis of rotation of the hub is located on a reference circle
  • the diameter of the reference circle is D1, where 0.025 ⁇ L3/D1 ⁇ 0.15.
  • the ratio of L3 to D1 satisfies: 0.035 ⁇ L3/D1 ⁇ 0.06.
  • the air duct mounting plate is provided with a first air duct member and a second air duct member
  • the fan assembly includes a plurality of groups, and each is a first fan assembly and a second fan assembly.
  • a fan assembly and the second fan assembly are spaced apart along the rotation axis of the hub, the first fan assembly is connected with the first air duct member, and the second air duct member is connected with the second fan assembly connection.
  • the vertical distance between the first fan assembly and the second fan assembly is L4, and the blades are separated from the rotation axis of the hub.
  • the farthest point is located on the reference circle, the diameter of the reference circle is D1, where 0.025 ⁇ L4/D1 ⁇ 0.16.
  • the first air duct member includes a first motor support and a first enclosure, the motor of the first fan assembly is connected to the first motor support, and the first enclosure defines a An air duct, the first fan assembly is located in the first air duct;
  • the second air duct member includes a second motor bracket and a second enclosure, the motor of the second fan assembly and the second motor The brackets are connected, the second enclosure plate defines a second air duct, the second fan assembly is located in the second air duct, and the second air duct is in communication with the first air duct.
  • the first fan assembly in the air outlet direction, is located downstream of the second fan assembly, and the vertical distance between the blades of the first fan assembly and the first motor support is L31 , The vertical distance between the blade of the second fan assembly and the second motor support is L32, where L32>L31.
  • the minimum distance between the blades of the second fan assembly and the inner wall of the second air duct is L5, and the point on the blades furthest from the axis of rotation of the hub is located on the reference circle Above, the diameter of the reference circle is D1, where 0.01 ⁇ L5/D1 ⁇ 0.09.
  • the ratio of L5 to D1 satisfies: 0.02 ⁇ L5/D1 ⁇ 0.03.
  • the air duct mounting plate further includes a third air duct member, the third air duct member is spaced from the first air duct member in a vertical direction, and the fan assembly includes a third fan assembly The rotation axis of the third fan assembly and the rotation axis of the first fan assembly are parallel to and spaced apart from each other, and the third fan assembly is connected with the third air duct member.
  • the first fan assembly in the air outlet direction, is located downstream of the second fan assembly, and the motor of the first fan assembly is located in the corresponding mounting cavity at a depth greater than that of the second fan assembly.
  • the motor of the fan assembly is located at the depth of the corresponding installation cavity.
  • the air conditioner according to the embodiment of the present application includes the air duct component as described above.
  • the air conditioner of the embodiment of the present application by providing a mounting cavity on the hub for accommodating the motor, that is, in the axial direction of the hub, at least part of the motor overlaps with the hub, thereby reducing the fan assembly on the hub.
  • the size in the axial direction can reduce the overall volume of the air duct components and avoid excessive exposure of the motor to the inside of the air duct, thereby reducing the air noise of the air conditioner and increasing the air output of the air conditioner.
  • Fig. 1 is a schematic diagram of a three-dimensional structure of a wind blade according to an embodiment of the present application
  • Figure 2 is a schematic cross-sectional view of a wind blade according to an embodiment of the present application.
  • Figure 3 is an exploded view of an air duct component according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a three-dimensional structure of an air duct component according to an embodiment of the present application.
  • FIG. 5 is a schematic cross-sectional view of an air duct component according to an embodiment of the present application.
  • Fig. 6 is a partial enlarged schematic diagram of A in Fig. 5;
  • Fig. 7 is a partial enlarged schematic diagram of B in Fig. 5;
  • Fig. 8 is a partial structural diagram of an air conditioner according to an embodiment of the present application.
  • Fig. 9 is a schematic cross-sectional view of an air conditioner according to an embodiment of the present application.
  • Hub 91 mounting cavity 911, sleeve 912, connecting part 913, avoidance groove 914,
  • Air duct component 900 Air duct component 900
  • the first air duct 930 The first air duct 930,
  • the second air duct 940 The second air duct 940,
  • Air conditioner 9100 cabinet 9110.
  • the air conditioner 9100 may be a split air conditioner 9100, such as an air conditioner cabinet or an air conditioner on-hook, or an integrated air conditioner 9100, such as a window air conditioner 9100.
  • the wind blade 9 includes a hub 91 and a plurality of blades 92.
  • the hub 91 may be cylindrical, and the hub 91 has a mounting cavity 911 in it to be suitable for accommodating at least part of the motor 9103. It is understandable that a part of the motor 9103 or the entire motor 9103 can be accommodated in the installation cavity 911. For example, as shown in FIG. 7, a part of the structure of the motor 9103 is accommodated in the installation cavity 911.
  • the fans 92 are provided on the outer peripheral wall of the hub 91, and a plurality of blades 92 are distributed at intervals in the circumferential direction of the hub 91.
  • the fan blade 9 of the embodiment of the present application by providing a mounting cavity 911 on the hub 91 for accommodating the motor 9103, the overall volume of the fan blade 9 and the motor 9103 after assembly can be reduced, and excessive exposure of the motor 9103 can also be avoided. Inside the air duct 923, it can reduce the wind noise and increase the air volume.
  • the point on the blade 92 farthest from the rotation axis of the hub 91 is located on a reference circle, the diameter of the reference circle is D1, and the diameter of the outer peripheral wall of the hub 91 is D2, Where 0.15 ⁇ D2/D1 ⁇ 0.6.
  • the motor 9103 can be better accommodated, so that more types of motors 9103 can be accommodated in the mounting cavity 911, so that the casing improves the application range of the fan blade 9.
  • the height of the blade 92 is H, and the blade 92 is connected to the rotation of the hub 91
  • the point farthest from the axis is on the reference circle.
  • the diameter of the reference circle is D1, where 0.05 ⁇ H/D1 ⁇ 0.5.
  • the height of the blade 92 refers to the maximum distance between any two points on the blade 92 in the direction of the rotation axis of the hub 91.
  • the hub 91 has a sleeve 912 and a connecting portion 913.
  • the sleeve 912 is connected to the hub 91 through the connecting portion 913, the end surface of one end of the sleeve 912 is located in the installation cavity 911, the end surface of the other end of the sleeve 912 is located outside the installation cavity 911, and the sleeve 912 is suitable for connecting to the motor 9103.
  • the power output shaft 9104 is connected to drive the wheel hub 91 to rotate.
  • the vertical distance between the end surface of one end of the sleeve 912 and the end surface of the hub 91 facing the motor 9103 is L1.
  • the height of the blade 92 Is H, where 0.2 ⁇ L1/H ⁇ 1.2. It should be noted that the height of the blade 92 refers to the maximum distance between any two points on the blade 92 in the direction of the rotation axis of the hub 91. Therefore, the motor 9103 can be better accommodated, so that more types of motors 9103 can be accommodated in the mounting cavity 911.
  • the vertical distance between the end surface of the other end of the sleeve 912 and the end surface of the hub 91 facing away from the motor 9103 is L2.
  • the blade 92 The height is H, where 0.25 ⁇ L2/H ⁇ 0.63. It should be noted that the height of the blade 92 refers to the maximum distance between any two points on the blade 92 in the direction of the rotation axis of the hub 91.
  • the structural strength of the fan blade 9 be enhanced, but also the structural size of the hub 91 can be reduced, so that the space of the mounting cavity 911 is larger, which is suitable for accommodating a larger-volume motor 9103, so that the housing can lift the fan blade 9 Scope of application.
  • the connecting portion 913 may have a strip shape.
  • the weight of the blade 9 can be reduced; on the other hand, it can also prevent the connecting portion 913 from blocking the airflow, so that the airflow can pass through the structure of the hub 91 more smoothly, thereby increasing the air output of the blade 9 and reducing Wind noise.
  • the mounting cavity 911 In order to enable the mounting cavity 911 to have a larger accommodating space for accommodating the motor 9103, in some embodiments, as shown in FIGS. 1, 2 and 7, the surface of the connecting portion 913 facing the inside of the mounting cavity 911 There is an avoidance slot 914 for avoiding the motor 9103.
  • the fan assembly 910 includes a motor 9103 and the wind blade 9 described above. Specifically, at least part of the motor 9103 is located in the installation cavity 911 of the wind blade 9.
  • a mounting cavity 911 is provided on the hub 91 for accommodating the motor 9103, that is, in the axial direction of the hub 91, at least part of the motor 9103 overlaps with the hub 91, thereby
  • the size of the fan assembly 910 in the axial direction of the hub 91 can be reduced, thereby reducing the overall volume of the fan assembly 910, avoiding excessive exposure of the motor 9103 to the inside of the air duct 923, thereby reducing air noise and increasing air output.
  • the fan assembly 910 may be an axial flow fan or a diagonal flow fan.
  • the air duct component 900 includes an air duct mounting plate 920 and the above-mentioned fan assembly 910, and the fan assembly 910 is connected to the air duct mounting plate 920. It can be understood that the air duct mounting plate 920 can be used to support the fan assembly 910, for example, the motor 9103 of the fan assembly 910 can be connected to the air duct mounting plate 920.
  • a mounting cavity 911 is provided on the hub 91 to accommodate the motor 9103, that is, in the axial direction of the hub 91, at least part of the motor 9103 overlaps the hub 91, This can reduce the size of the fan assembly 910 in the axial direction of the hub 91, thereby reducing the overall volume of the fan assembly 910, avoiding excessive exposure of the motor 9103 to the inside of the air duct 923, thereby reducing air noise and increasing air output.
  • the air duct mounting plate 920 is provided with an enclosure plate 922, the motor 9103 is connected to the enclosure plate 922 through a motor bracket 921, the enclosure plate 922 defines an air duct 923, and the fan assembly 910 is located Inside the air duct 923.
  • the assembly stability between the fan assembly 910 and the air duct mounting plate 920 can be improved.
  • the minimum distance between the blade 92 and the motor support 921 is L3, and the point on the blade 92 farthest from the rotation axis of the hub 91 is located on the reference circle.
  • the diameter is D1, where 0.025 ⁇ L3/D1 ⁇ 0.15.
  • the distance between the wind blade and the air duct when the air duct is unchanged, the smaller the distance between the wind blade and the air duct, the larger the diameter of the wind blade, and the greater the air volume. Under the condition of the same air volume, the fan with a larger diameter needs a lower speed, so the noise of the fan blade 9 is lower, and the noise of the wind can also be reduced. At the same time, through the improvement of the above-mentioned size, the distance between the wind blade and the air duct can be reduced, so that the air leakage area of the air duct gap can be reduced, and the performance of the fan can be increased.
  • the air duct mounting plate 920 may be provided with a first air duct member 930 and a second air duct member 940, and the fan assembly 910 may include multiple groups, which are respectively The first fan assembly 9101 and the second fan assembly 9102, the first fan assembly 9101 and the second fan assembly 9102 are spaced apart along the rotation axis of the hub 91, the first fan assembly 9101 is connected to the first air duct 930, and the second air duct The piece 940 is connected to the second fan assembly 9102.
  • a plurality of air duct members may be provided on the air duct mounting plate 920 for installing a plurality of fan assemblies 910.
  • the arrangement order of the plurality of fan assemblies 910 is not specifically limited.
  • the plurality of fan assemblies 910 may be arranged on the air duct mounting plate 920 at intervals; for example, in some embodiments, more A plurality of fan assemblies 910 may be arranged in a stack, in which the air ducts 923 of a plurality of fan assemblies 910 communicate with each other, and the plurality of fan assemblies 910 are arranged in a stack in the axial direction of one of the hub 91.
  • the vertical distance between the first fan assembly 9101 and the second fan assembly 9102 is L4, and the blade 92 and the rotation axis of the hub 91
  • the farthest point is on the reference circle.
  • the diameter of the reference circle is D1, where 0.025 ⁇ L4/D1 ⁇ 0.16.
  • the first air duct member 930 may include a first motor bracket 9211 and a first enclosure 9221, the motor 9103 of the first fan assembly 9101 and the first motor bracket 9211 is connected, the first enclosure 9221 defines a first air duct 9231, and the first fan assembly 9101 is located in the first air duct 9231.
  • the second air duct member 940 may include a second motor support 9212 and a second enclosure 9222.
  • the motor 9103 of the second fan assembly 9102 is connected to the second motor support 9212.
  • the second enclosure 9222 defines the second air duct 9232.
  • the second fan assembly 9102 is located in the second air duct 9232, and the second air duct 9232 is in communication with the first air duct 9231. Therefore, it is convenient to assemble the first fan assembly 9101 and the second fan assembly 9102 along the axis of the hub 91.
  • the first enclosure plate 922 is connected to the air duct mounting plate 920, and the second enclosure plate 922 is connected to the air duct mounting plate 920, so that the first air duct member 930 and the second air duct member 940 can be installed To the air duct mounting plate 920.
  • the first fan assembly 9101 is located downstream of the second fan assembly 9102.
  • the vertical distance between the blade 92 of the first fan assembly 9101 and the first motor support 9211 is L31
  • the vertical distance between the blade 92 of the second fan assembly 9102 and the second motor support 9212 is L32, where L32>L31.
  • the minimum distance between the blade 92 of the second fan assembly 9102 and the inner wall of the second air duct 9232 is L5, and the blade 92 is the furthest away from the rotation axis of the hub 91
  • the point of is located on the reference circle, the diameter of the reference circle is D1, where 0.01 ⁇ L5/D1 ⁇ 0.09.
  • the ratio of L5 to D1 satisfies: 0.02 ⁇ L5/D1 ⁇ 0.03.
  • the distance between the wind blade and the air duct when the air duct is unchanged, the smaller the distance between the wind blade and the air duct, the larger the diameter of the wind blade, and the greater the air volume. Under the condition of the same air volume, the fan with a larger diameter needs a lower speed, so the noise of the fan blade 9 is lower, and the noise of the wind can also be reduced. At the same time, through the improvement of the above-mentioned size, the distance between the wind blade and the air duct can be reduced, so that the air leakage area of the air duct gap can be reduced, and the performance of the fan can be increased.
  • the air duct mounting plate 920 may further include a third air duct member 950, which is spaced apart from the first air duct member 930 in the up-down direction.
  • the fan assembly 910 includes a third fan assembly 960, the rotation axis of the third fan assembly 960 and the rotation axis of the first fan assembly 9101 are parallel to and spaced apart from each other, and the third fan assembly 960 is connected to the third air duct 950.
  • multiple air ducts can be provided on the same air duct mounting plate 920, so that the number of air ducts can be increased and the air output can be increased.
  • the first fan assembly 9101 in the air outlet direction, is located downstream of the second fan assembly 9102, and the motor 9103 of the first fan assembly 9101 is located in the corresponding mounting cavity 911 at a greater depth than the second fan assembly 9102
  • the motor 9103 is located at the depth of the corresponding mounting cavity 911.
  • a reasonable avoidance can be selected according to the internal structure of the air conditioner 9100.
  • the two motors in the air outlet direction are set to different installation depths.
  • the upstream motor can be used in the second fan assembly 9102.
  • the motor 9103 and the air conditioner 9100 have a reasonable escape space.
  • the installation depth of the motor 9103 of the second fan assembly 9102 can be shortened (the "depth” here refers to the motor in the direction of the air The upper distance is located in the installation cavity 911), thereby saving installation space.
  • the air conditioner 9100 includes the air duct component 900 as described above.
  • the air conditioner 9100 may include a casing 9110, the casing 9110 is provided with an air inlet and an air outlet, and the air duct component 900 may be provided at the air outlet.
  • a mounting cavity 911 is provided on the hub 91 for accommodating the motor 9103, that is, in the axial direction of the hub 91, at least part of the motor 9103 overlaps with the hub 91, thereby It is possible to reduce the size of the fan assembly 910 in the axial direction of the hub 91, thereby reducing the overall volume of the air duct component 900, avoiding excessive exposure of the motor 9103 to the inside of the air duct 923, thereby reducing the wind noise of the air conditioner 9100. Increase the air output of the air conditioner 9100.
  • the air conditioner 9100 according to the embodiment of the present application will be described in detail below with specific embodiments. It should be noted that the following description is only an exemplary description, rather than a specific limitation to the application.
  • the height of the blade 92 is H
  • the point on the blade 92 farthest from the rotation axis of the hub 91 is located on the reference circle
  • the diameter of the reference circle is D1.
  • the height of the blade 92 is H, and the point on the blade 92 farthest from the rotation axis of the hub 91 is located on the reference circle.
  • the diameter of the reference circle is D1.
  • the vertical distance between a fan assembly 9101 and a second fan assembly 9102 is L4.
  • the height of the blade 92 is H, and the point on the blade 92 farthest from the axis of rotation of the hub 91 is located on the reference circle.
  • the diameter of the reference circle is D1.
  • the minimum distance between 92 and the motor support 921 is L3.
  • L3 after theoretical and test verification, the smaller the L3, the greater the air volume of the fan assembly at the same speed, and the lower the fan noise under the same air volume.
  • L3 should not be too large or too small.
  • L3 when L3 is gradually increased from 2mm to 10mm, the noise value rises slowly, and when L3 is increased from 8mm to 10mm, the noise value grows faster. Based on this, L3 can also be 6mm ⁇ L3 ⁇ 10mm, and further L3 can also be 7mm.
  • the thickness of the air duct member 900 in the axial direction of the hub 91 can be reduced; on the other hand, it can also avoid interference or collision between the blade 92 and the motor bracket 921 Therefore, the operating noise of the air duct component 900 can be reduced. Furthermore, where 0.025 ⁇ L3/D1 ⁇ 0.15. Thus, on the one hand, the thickness of the air duct member 900 in the axial direction of the hub 91 can be reduced; on the other hand, interference or collision between the blade 92 and the motor bracket 921 can also be avoided, thereby reducing the operation of the air duct member 900 noise.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

一种风叶(9)、风机组件(910)、风道部件(900)及空调器(9100)。风叶(9)包括轮毂(91)和多片叶片(92),轮毂(91)内具有安装腔(911),以适于收容电机(9103)的至少部分,叶片(92)设于轮毂(91)的外周壁。所述风叶(9)具有体积小、出风量大、出风噪音小的优点。

Description

风叶、风机组件、风道部件及空调器
相关申请的交叉引用
本申请要求广东美的制冷设备有限公司、美的集团股份有限公司于2019年01月30日提交的、名称为“风叶、风机组件、风道部件及空调器”的、中国专利申请号“201920176748.5”、“201910093439.6”的优先权。
技术领域
本申请涉及空气处理领域,尤其是涉及一种风叶、风机组件、风道部件及空调器。
背景技术
当前家电行业一般使用的风机类型较多,且每一种类型的风机都有其独特的特性。有些风机在转速相当的情况下,风量大,噪声低,但是风压很小,遇到出风口后端阻力大的情况下排风效果差甚至会出现倒流,有些风机在同转速下风量小、体积大。在不降低风机的出风量的前提下,如何降低风机的出风噪音,缩小风机的体积,是需要亟待解决的技术问题。
发明内容
本申请旨在至少解决现有技术中存在的技术问题之一。为此,本申请的一个目的在于提出一种风叶,所述风叶具有体积小、出风量大、出风噪音小的优点。
本申请的另一目的在于提出一种风机组件,所述风机组件具有如上所述的风叶。
本申请的又一目的在于提出一种风道部件,所述风道部件具有如上所述的风机组件。
本申请的再一目的在于提出一种空调器,所述空调器具有如上所述风道部件。
根据本申请实施例的风叶,包括:轮毂,所述轮毂内具有安装腔,以适于收容电机的至少部分;多片叶片,所述叶片设于所述轮毂的外周壁。
根据本申请实施例的风叶,通过在轮毂上设置安装腔以用于收容电机,不但可以缩小风叶与电机装配后的整体体积,还可以避免电机过多的暴露于风道内部,从而可以降低出风噪音,提升出风量。
在一些实施例中,所述叶片上与所述轮毂的旋转轴线相距最远的点位于参考圆上,所述参考圆的直径为D1,所述轮毂的外周壁的直径为D2,其中0.15≤D2/D1≤0.6。
在一些实施例中,所述D2与D1的比值满足:0.3≤D2/D1≤0.5。
在一些实施例中,在所述轮毂的旋转轴线的方向上,所述叶片的高度为H,所述叶片上 与所述轮毂的旋转轴线相距最远的点位于参考圆上,所述参考圆的直径为D1,其中0.05≤H/D1≤0.5。
在一些实施例中,所述H与D1的比值满足:0.1≤H/D1≤0.2。
在一些实施例中,所述轮毂内具有轴套和连接部,所述轴套通过连接部与所述轮毂连接,所述轴套的一端的端面位于所述安装腔内,所述轴套的另一端的端面位于所述安装腔外,所述轴套适于与所述电机的动力输出轴连接,以驱动所述轮毂转动。
在一些实施例中,所述轴套的所述一端的端面到所述轮毂的朝向所述电机的端面之间的垂直距离为L1,在所述轮毂的旋转轴线的方向上,所述叶片的高度为H,其中0.2≤L1/H≤1.2。
在一些实施例中,所述轴套的所述另一端的端面到所述轮毂的背离所述电机的端面之间的垂直距离为L2,在所述轮毂的旋转轴线的方向上,所述叶片的高度为H,其中0.25≤L2/H≤0.63。
在一些实施例中,所述连接部为多个,多个所述连接部沿所述轴套的周向方向间隔分布。
在一些实施例中,所述连接部呈条状。
在一些实施例中,所述连接部的朝向所述安装腔内部的表面具有避让槽,以用于避让所述电机。
在一些实施例中,所述轮毂呈筒状。
根据本申请实施例的风机组件,包括:电机和如上所述的风叶,所述电机的至少部分位于所述风叶安装腔内。
根据本申请实施例的风机组件,通过在轮毂上设置安装腔以用于收容电机,也就是说,在轮毂的轴线方向上,电机的至少部分与轮毂重合,由此可以减小风机组件在轮毂轴线方向上的尺寸,从而可以缩小风机组件的整体体积,避免电机过多的暴露于风道内部,进而可以降低出风噪音,提升出风量。
在一些实施例中,所述风机组件为轴流风机或斜流风机。
根据本申请实施例的风道部件,包括:风道安装板和如上所述的风机组件,所述风机组件与所述风道安装板连接。
根据本申请实施例的风道部件,通过在轮毂上设置安装腔以用于收容电机,也就是说,在轮毂的轴线方向上,电机的至少部分与轮毂重合,由此可以减小风机组件在轮毂轴线方向上的尺寸,从而可以缩小风机组件的整体体积,避免电机过多的暴露于风道内部,进而可以降低出风噪音,提升出风量。
在一些实施例中,所述风道安装板设有围板,所述电机通过电机支架与所述围板连接,所述围板限定出风道,所述风机组件位于所述风道内。
在一些实施例中,所述叶片与所述电机支架之间的最小距离为L3,所述叶片上与所述轮毂的旋转轴线相距最远的点位于参考圆上,所述参考圆的直径为D1,其中0.025≤L3/D1≤0.15。
在一些实施例中,所述L3与D1的比值满足:0.035≤L3/D1≤0.06。
在一些实施例中,所述风道安装板设有第一风道件和第二风道件,所述风机组件包括多组,且分别为第一风机组件和第二风机组件,所述第一风机组件与所述第二风机组件沿所述轮毂的旋转轴线间隔开,所述第一风机组件与所述第一风道件连接,所述第二风道件与所述第二风机组件连接。
在一些实施例中,在所述轮毂的旋转轴线的方向上,所述第一风机组件与所述第二风机组件之间的垂直距离为L4,所述叶片上与所述轮毂的旋转轴线相距最远的点位于参考圆上,所述参考圆的直径为D1,其中0.025≤L4/D1≤0.16。
在一些实施例中,所述第一风道件包括第一电机支架和第一围板,所述第一风机组件的电机与所述第一电机支架连接,所述第一围板限定出第一风道,所述第一风机组件位于所述第一风道内;所述第二风道件包括第二电机支架和第二围板,所述第二风机组件的电机与所述第二电机支架连接,所述第二围板限定出第二风道,所述第二风机组件位于所述第二风道内,所述第二风道与所述第一风道连通。
在一些实施例中,在出风方向上,所述第一风机组件位于所述第二风机组件的下游,所述第一风机组件的叶片与所述第一电机支架之间的垂直距离为L31,所述第二风机组件的叶片与所述第二电机支架之间的垂直距离为L32,其中L32>L31。
在一些实施例中,所述第二风机组件的叶片与所述第二风道的内壁之间的最小距离为L5,所述叶片上与所述轮毂的旋转轴线相距最远的点位于参考圆上,所述参考圆的直径为D1,其中0.01≤L5/D1≤0.09。
在一些实施例中,所述L5与D1的比值满足:0.02≤L5/D1≤0.03。
在一些实施例中,所述风道安装板还包括第三风道件,所述第三风道件与所述第一风道件沿上下方向间隔开,所述风机组件包括第三风机组件,所述第三风机组件的旋转轴线与所述第一风机组件的旋转轴线彼此平行且间隔开,所述第三风机组件与所述第三风道件连接。
在一些实施例中,在出风方向上,所述第一风机组件位于所述第二风机组件的下游,所述第一风机组件的电机位于对应的所述安装腔的深度大于所述第二风机组件的电机位于对应的所述安装腔的深度。
根据本申请实施例的空调器,包括如上所述的风道部件。
根据本申请实施例的空调器,通过在轮毂上设置安装腔以用于收容电机,也就是说,在 轮毂的轴线方向上,电机的至少部分与轮毂重合,由此可以减小风机组件在轮毂轴线方向上的尺寸,从而可以缩小风道部件的整体体积,避免电机过多的暴露于风道内部,进而可以降低空调器的出风噪音,提升空调器的出风量。
附图说明
图1是根据本申请实施例的风叶的立体结构示意图;
图2是根据本申请实施例的风叶的剖视示意图;
图3是根据本申请实施例的风道部件的***图;
图4是根据本申请实施例的风道部件的立体结构示意图;
图5是根据本申请实施例的风道部件的剖视示意图;
图6是图5中A处的局部放大示意图;
图7是图5中B处的局部放大示意图;
图8是根据本申请实施例的空调器的局部结构示意图;
图9是根据本申请实施例的空调器的剖视示意图。
附图标记:
风叶9,
轮毂91,安装腔911,轴套912,连接部913,避让槽914,
叶片92,
风机组件910,电机9103,动力输出轴9104,
第一风机组件9101,第二风机组件9102,
风道部件900,
风道安装板920,电机支架921,围板922,风道923,
第一风道件930,
第一电机支架9211,第一围板9221,第一风道9231,
第二风道件940,
第二电机支架9212,第二围板9222,第二风道9232,
第三风道件950,第三风机组件960,
空调器9100,机壳9110。
具体实施方式
下面详细描述本申请的实施例,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,仅用于解释本申请,而不能理解为对本申请的限制。
下面参考图1-图9描述根据本申请实施例的风叶9、风机组件910、风道部件900及空调器9100。需要说明的是,空调器9100可以为分体式空调器9100,例如空调柜机、空调挂机,也可以为一体式空调器9100,例如窗式空调器9100。
如图1所示,根据本申请实施例的风叶9,包括轮毂91和多片叶片92。
具体而言,轮毂91可以呈筒状,轮毂91内具有安装腔911以适于收容电机9103的至少部分。可以理解的是,电机9103的一部分或者电机9103的整机可以收容到安装腔911内,例如,如图7所示,电机9103的部分结构收容到安装腔911内。
一方面,可以避免电机9103过多的暴露于风道923内部,由此可以减小风叶9与风道923之间的距离,从而可以提升风叶9的直径,进而可以增大风量。需要说明的是,在同等风量的条件下,直径越大的风机所需要的转速越低,故风叶9的噪音越小,由此还可以降低出风噪音。另一方面,可以缩小风叶9与电机9103装配后的整体体积,优化空调器9100内部各个部件之间的布局。如图1所示,叶片92设于轮毂91的外周壁,多个叶片92沿轮毂91的周向方向间隔分布。
根据本申请实施例的风叶9,通过在轮毂91上设置安装腔911以用于收容电机9103,不但可以缩小风叶9与电机9103装配后的整体体积,还可以避免电机9103过多的暴露于风道923内部,从而可以降低出风噪音,提升出风量。
如图2所示,根据本申请的一些实施例,叶片92上与轮毂91的旋转轴线相距最远的点位于参考圆上,参考圆的直径为D1,轮毂91的外周壁的直径为D2,其中0.15≤D2/D1≤0.6。由此可以更好地收容电机9103,使安装腔911内可以收容更多型号的电机9103,从而壳体提升风叶9的适用范围。进一步地,经过试验验证,当D2与D1的比值满足:0.3≤D2/D1≤0.5时,风叶9对电机9103的收容效果更好。
为了能够进一步提升风叶9的出风量,根据本申请的一些实施例,如图2所示,在轮毂91的旋转轴线的方向上,叶片92的高度为H,叶片92上与轮毂91的旋转轴线相距最远的点位于参考圆上,参考圆的直径为D1,其中0.05≤H/D1≤0.5。需要说明的是,叶片92的高度是指叶片92上任意两点在轮毂91的旋转轴线的方向上的最大距离。进一步地,经过试验验证,当H与D1的比值满足:0.1≤H/D1≤0.2时,风叶9在出风量一定的条件下,风叶9的体积更小。
根据本申请的一些实施例,如图2、图3所示,轮毂91内具有轴套912和连接部913。其中,轴套912通过连接部913与轮毂91连接,轴套912的一端的端面位于安装腔911内,轴套912的另一端的端面位于安装腔911外,轴套912适于与电机9103的动力输出轴9104连接,以驱动轮毂91转动。
在一些实施例中,如图2所示,轴套912的一端的端面到轮毂91的朝向电机9103的端面之间的垂直距离为L1,在轮毂91的旋转轴线的方向上,叶片92的高度为H,其中0.2≤L1/H≤1.2。需要说明的是,叶片92的高度是指叶片92上任意两点在轮毂91的旋转轴线的方向上的最大距离。由此,可以更好地收容电机9103,使安装腔911内可以收容更多型号的电机9103。
如图2所示,在一些实施例中,轴套912的另一端的端面到轮毂91的背离电机9103的端面之间的垂直距离为L2,在轮毂91的旋转轴线的方向上,叶片92的高度为H,其中0.25≤L2/H≤0.63。需要说明的是,叶片92的高度是指叶片92上任意两点在轮毂91的旋转轴线的方向上的最大距离。一方面,不但可以增强风叶9的结构强度,还可以缩小轮毂91的结构尺寸,使安装腔911的空间更大,以适于收容较大体积的电机9103,从而壳体提升风叶9的适用范围。
在一些实施例中,如图1所示,连接部913可以为多个,多个连接部913可以沿轴套912的周向方向间隔分布。由此可以增强轴套912与轮毂91之间的连接强度。在一些实例中,连接部913可以呈条状。一方面,可以降低风叶9的重量;另一方面,还可以避免连接部913阻挡气流,从而可以使气流可以更加顺畅地从轮毂91结构处通过,进而可以提升风叶9的出风量,降低出风噪音。
为了能够使安装腔911可以具有更大的容纳空间,以用于收容电机9103,在一些实施例中,如图1、图2和图7所示,连接部913的朝向安装腔911内部的表面具有避让槽914,以用于避让电机9103。
如图3-图7所示,根据本申请实施例的风机组件910,包括电机9103和如上所述的风叶9。具体而言,电机9103的至少部分位于风叶9的安装腔911内。
根据本申请实施例的风机组件910,通过在轮毂91上设置安装腔911以用于收容电机9103,也就是说,在轮毂91的轴线方向上,电机9103的至少部分与轮毂91重合,由此可以减小风机组件910在轮毂91轴线方向上的尺寸,从而可以缩小风机组件910的整体体积,避免电机9103过多的暴露于风道923内部,进而可以降低出风噪音,提升出风量。在一些实施例中,风机组件910可以为轴流风机或斜流风机。
根据本申请实施例的风道部件900,包括风道安装板920和如上所述的风机组件910,风机组件910与风道安装板920连接。可以理解的是,风道安装板920可以用于支撑风机组件910,例如,风机组件910的电机9103可以与风道安装板920连接。
根据本申请实施例的风道部件900,通过在轮毂91上设置安装腔911以用于收容电机9103,也就是说,在轮毂91的轴线方向上,电机9103的至少部分与轮毂91重合,由此可以减小风机组件910在轮毂91轴线方向上的尺寸,从而可以缩小风机组件910的整体体积, 避免电机9103过多的暴露于风道923内部,进而可以降低出风噪音,提升出风量。
根据本申请的一些实施例,如图5所示,风道安装板920设有围板922,电机9103通过电机支架921与围板922连接,围板922限定出风道923,风机组件910位于风道923内。由此,可以提升风机组件910与风道安装板920之间的装配稳定性。
如图6所示,根据本申请的一些实施例,叶片92与电机支架921之间的最小距离为L3,叶片92上与轮毂91的旋转轴线相距最远的点位于参考圆上,参考圆的直径为D1,其中0.025≤L3/D1≤0.15。由此,一方面可以减小风道部件900在轮毂91轴线方向上的厚度;另一方面,还可以避免叶片92与电机支架921之间发生干涉或碰撞,从而可以降低风道部件900的运行噪音。
需要说明的是,当风道不变时,风叶离风道的距离越小,风叶直径越大,风量就越大。在同等风量的条件下,直径越大的风机所需要的转速越低,故风叶9的噪音越小,由此还可以降低出风噪音。同时,通过上述尺寸的改进,可以缩小风叶与风道的距离,从而可以缩小风道间隙漏风区域,进而可以增大风机的做功能力。
进一步地,经过试验验证,当L3与D1的比值满足:0.035≤L3/D1≤0.06时,当风道部件900在轮毂91轴线方向上的厚度一定时,风道部件900的运行噪音更小,叶片92与电机支架921之间发生干涉或碰撞的可能性更低。
根据本申请的一些实施例,如图5-图7所示,风道安装板920可以设有第一风道件930和第二风道件940,风机组件910可以包括多组,且分别为第一风机组件9101和第二风机组件9102,第一风机组件9101与第二风机组件9102沿轮毂91的旋转轴线间隔开,第一风机组件9101与第一风道件930连接,第二风道件940与所述第二风机组件9102连接。
可以理解的是,风道安装板920上可以设置多个风道件,以用于安装多个风机组件910。这里,对多个风机组件910的排列顺序不做具体限定,例如,在一些实例中,多个风机组件910可以在风道安装板920上间隔排布;再如,在一些实施例中,多个风机组件910可以层叠设置,在其中多个风机组件910的风道923彼此连通,多个风机组件910在其中一个轮毂91的轴线方向上层叠设置。
如图6所示,在一些实施例中,在轮毂91的旋转轴线的方向上,第一风机组件9101与第二风机组件9102之间的垂直距离为L4,叶片92上与轮毂91的旋转轴线相距最远的点位于参考圆上,参考圆的直径为D1,其中0.025≤L4/D1≤0.16。由此可以进一步减小风道部件900在轮毂91轴线方向上的厚度。
根据本申请的一些实施例,如图5-图7所示,第一风道件930可以包括第一电机支架9211和第一围板9221,第一风机组件9101的电机9103与第一电机支架9211连接,第一围板9221限定出第一风道9231,第一风机组件9101位于第一风道9231内。第二风道件 940可以包括第二电机支架9212和第二围板9222,第二风机组件9102的电机9103与第二电机支架9212连接,第二围板9222限定出第二风道9232,第二风机组件9102位于第二风道9232内,第二风道9232与第一风道9231连通。由此,便于将第一风机组件9101和第二风机组件9102沿着轮毂91轴线方向装配。例如,5所示,第一围板922与风道安装板920连接,第二围板922与风道安装板920连接,由此可以将第一风道件930和第二风道件940安装至风道安装板920上。
如图6所示,为了减小风道部件900在轮毂91轴线方向上的厚度,根据本申请的一些实施例,在出风方向上,第一风机组件9101位于第二风机组件9102的下游,第一风机组件9101的叶片92与第一电机支架9211之间的垂直距离为L31,第二风机组件9102的叶片92与第二电机支架9212之间的垂直距离为L32,其中L32>L31。
根据本申请的一些实施例,如图6所示,第二风机组件9102的叶片92与第二风道9232的内壁之间的最小距离为L5,叶片92上与轮毂91的旋转轴线相距最远的点位于参考圆上,参考圆的直径为D1,其中0.01≤L5/D1≤0.09。由此,不但可以增大出风量,还可以减小风道部件900的结构尺寸。进一步地,L5与D1的比值满足:0.02≤L5/D1≤0.03。经过试验验证,当L5与D1的比值满足:0.02≤L5/D1≤0.03时,在风叶9转速相同的条件下,风机组件910的出风量更大,出风噪音更小。
需要说明的是,当风道不变时,风叶离风道的距离越小,风叶直径越大,风量就越大。在同等风量的条件下,直径越大的风机所需要的转速越低,故风叶9的噪音越小,由此还可以降低出风噪音。同时,通过上述尺寸的改进,可以缩小风叶与风道的距离,从而可以缩小风道间隙漏风区域,进而可以增大风机的做功能力。
根据本申请的一些实施例,风道安装板920还可以包括第三风道件950,第三风道件950与第一风道件930沿上下方向间隔开。风机组件910包括第三风机组件960,第三风机组件960的旋转轴线与第一风机组件9101的旋转轴线彼此平行且间隔开,第三风机组件960与第三风道件950连接。由此,可以在同一风道安装板920上设置多个风道,从而可以增加风道数量,提升出风量。
根据本申请的一些实施例,在出风方向上,第一风机组件9101位于第二风机组件9102的下游,第一风机组件9101的电机9103位于对应的安装腔911的深度大于第二风机组件9102的电机9103位于对应的安装腔911的深度。需要说明的是,可以根据空调器9100的内部结构,选择合理的避让,例如,在出风方向上的两个电机设置不同的安装深度,一方面可以使位于上游的电机于第二风机组件9102的电机9103与空调器9100内部具有合理的避让空间,另一方面,还可以缩短位于下游的电机于第二风机组件9102的电机9103的安装深度(这里的“深度”是指电机在出风方向上位于安装腔911内的距离),从而可以节省 安装空间。
如图8、图9所示,根据本申请实施例的空调器9100,包括如上所述的风道部件900。
具体地,空调器9100可以包括机壳9110,机壳9110上设有进风口和出风口,风道部件900可以设在出风口处。
根据本申请实施例的空调器9100,通过在轮毂91上设置安装腔911以用于收容电机9103,也就是说,在轮毂91的轴线方向上,电机9103的至少部分与轮毂91重合,由此可以减小风机组件910在轮毂91轴线方向上的尺寸,从而可以缩小风道部件900的整体体积,避免电机9103过多的暴露于风道923内部,进而可以降低空调器9100的出风噪音,提升空调器9100的出风量。
下面以具体的实施例详细描述根据本申请实施例的空调器9100。需要说明的是,下述描述仅是示例性说明,而不是对本申请的具体限定。
实施例1
在该实施例中,在轮毂91的旋转轴线的方向上,叶片92的高度为H,叶片92上与轮毂91的旋转轴线相距最远的点位于参考圆上,参考圆的直径为D1。为测试H及D1对空调器9100风量噪音的影响,以D1=360mm、800方风量为例进行测试,实验如下:
表1
Figure PCTCN2019084120-appb-000001
由上表可知,当0.05≤H/D1≤0.5时,空调器9100的出风噪音小、能耗低。当0.05≤H/D1≤0.5时,还可以减小风叶9的体积。
实施例2
在该实施例中,在轮毂91的旋转轴线的方向上,叶片92的高度为H,叶片92上与轮毂91的旋转轴线相距最远的点位于参考圆上,参考圆的直径为D1,第一风机组件9101与 第二风机组件9102之间的垂直距离为L4。为测试L4对空调器9100噪音的影响,以D1=360mm、H=44mm、1200方风量为例进行测试,实验如下:
表2
Figure PCTCN2019084120-appb-000002
由上表可知,当0.025≤L4/D1≤0.16时,空调器9100的出风噪音小、能耗低。
实施例3
在该实施例中,在轮毂91的旋转轴线的方向上,叶片92的高度为H,叶片92上与轮毂91的旋转轴线相距最远的点位于参考圆上,参考圆的直径为D1,叶片92与电机支架921之间的最小距离为L3。
为测试L3对空调器9100噪音的影响,以D1=360mm、H=44mm、1200方风量为例进行测试,实验如下:
表3
Figure PCTCN2019084120-appb-000003
Figure PCTCN2019084120-appb-000004
对于L3而言,经过理论及测试验证,L3越小,同转速的风机组件的风量越大,同风量下风机噪音越低,但是考虑到装配、运输及风机运行可能存在的误差或变形,为了避免风叶与风道内壁干涉,L3不宜过大,也不宜过小。
由于360mm的电机支架921制造公差为±2mm,所以,当L3=2mm时,容易导致风叶与电机支架921内壁之间发生干涉。鉴于此,在本实施例中,L3≥3mm。
从表3可以看出,当L3=15mm时,其对应的噪音值为51.3dB,极为接近50dB,所以在此,L3在3mm至15mm范围内为较佳值。
另外,从表4中还可以看出,L3由2mm逐渐增加至10mm过程中,噪音值上升缓慢,而当L3由8mm增加至10mm时,噪音值增长较快,基于此,L3还可以为6mm≤L3≤10mm,进一步地L3还可以为7mm。
进一步地,当0.025≤L3/D1≤0.15时,一方面可以减小风道部件900在轮毂91轴线方向上的厚度;另一方面,还可以避免叶片92与电机支架921之间发生干涉或碰撞,从而可以降低风道部件900的运行噪音。更进一步地,其中0.025≤L3/D1≤0.15。由此,一方面可以减小风道部件900在轮毂91轴线方向上的厚度;另一方面,还可以避免叶片92与电机支架921之间发生干涉或碰撞,从而可以降低风道部件900的运行噪音。
在本申请的描述中,需要理解的是,术语“厚度”、“上”、“下”、“内”、“外”、“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申请和简化描述,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申请的限制。在本申请的描述中,“多个”的含义是两个或两个以上。
在本说明书的描述中,参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“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申请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一定指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何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本申请的实施例,本领域的普通技术人员可以理解:在不脱离本申请的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型,本申请的范围由权利要求及其等同物限定。

Claims (27)

  1. 一种风叶,其特征在于,包括:
    轮毂,所述轮毂内具有安装腔,以适于收容电机的至少部分;
    多片叶片,所述叶片设于所述轮毂的外周壁。
  2. 根据权利要求1所述的风叶,其特征在于,所述叶片上与所述轮毂的旋转轴线相距最远的点位于参考圆上,所述参考圆的直径为D1,
    所述轮毂的外周壁的直径为D2,其中0.15≤D2/D1≤0.6。
  3. 根据权利要求2所述的风叶,其特征在于,所述D2与D1的比值满足:0.3≤D2/D1≤0.5。
  4. 根据权利要求1-3中任一项所述的风叶,其特征在于,在所述轮毂的旋转轴线的方向上,所述叶片的高度为H,
    所述叶片上与所述轮毂的旋转轴线相距最远的点位于参考圆上,所述参考圆的直径为D1,其中0.05≤H/D1≤0.5。
  5. 根据权利要求4所述的风叶,其特征在于,所述H与D1的比值满足:0.1≤H/D1≤0.2。
  6. 根据权利要求1-5中任一项所述的风叶,其特征在于,所述轮毂内具有轴套和连接部,所述轴套通过连接部与所述轮毂连接,所述轴套的一端的端面位于所述安装腔内,所述轴套的另一端的端面位于所述安装腔外,所述轴套适于与所述电机的动力输出轴连接,以驱动所述轮毂转动。
  7. 根据权利要求6所述的风叶,其特征在于,所述轴套的所述一端的端面到所述轮毂的朝向所述电机的端面之间的垂直距离为L1,
    在所述轮毂的旋转轴线的方向上,所述叶片的高度为H,其中0.2≤L1/H≤1.2。
  8. 根据权利要求6所述的风叶,其特征在于,所述轴套的所述另一端的端面到所述轮毂的背离所述电机的端面之间的垂直距离为L2,
    在所述轮毂的旋转轴线的方向上,所述叶片的高度为H,其中0.25≤L2/H≤0.63。
  9. 根据权利要求6所述的风叶,其特征在于,所述连接部为多个,多个所述连接部沿所述轴套的周向方向间隔分布。
  10. 根据权利要求6所述的风叶,其特征在于,所述连接部呈条状。
  11. 根据权利要求6所述的风叶,其特征在于,所述连接部的朝向所述安装腔内部的表面具有避让槽,以用于避让所述电机。
  12. 根据权利要求1-11中任一项所述的风叶,其特征在于,所述轮毂呈筒状。
  13. 一种风机组件,其特征在于,包括:
    电机;
    风叶,所述风叶为根据权利要求1-12中任一项所述的风叶,所述电机的至少部分位于所述风叶的安装腔内。
  14. 根据权利要求13所述的风机组件,其特征在于,所述风机组件为轴流风机或斜流风机。
  15. 一种风道部件,其特征在于,包括:
    风道安装板;
    风机组件,所述风机组件为根据权利要求13或14所述的风机组件,所述风机组件与所述风道安装板连接。
  16. 根据权利要求15所述的风道部件,其特征在于,所述风道安装板设有围板,所述电机通过电机支架与所述围板连接,所述围板限定出风道,所述风机组件位于所述风道内。
  17. 根据权利要求16所述的风道部件,其特征在于,所述叶片与所述电机支架之间的最小距离为L3,
    所述叶片上与所述轮毂的旋转轴线相距最远的点位于参考圆上,所述参考圆的直径为D1,其中0.025≤L3/D1≤0.15。
  18. 根据权利要求17所述的风道部件,其特征在于,所述L3与D1的比值满足:0.035≤L3/D1≤0.06。
  19. 根据权利要求16所述的风道部件,其特征在于,所述风道安装板设有第一风道件和第二风道件,
    所述风机组件包括多组,且分别为第一风机组件和第二风机组件,所述第一风机组件与所述第二风机组件沿所述轮毂的旋转轴线间隔开,所述第一风机组件与所述第一风道件连接,所述第二风道件与所述第二风机组件连接。
  20. 根据权利要求19所述的风道部件,其特征在于,在所述轮毂的旋转轴线的方向上,所述第一风机组件与所述第二风机组件之间的垂直距离为L4,
    所述叶片上与所述轮毂的旋转轴线相距最远的点位于参考圆上,所述参考圆的直径为D1,其中0.025≤L4/D1≤0.16。
  21. 根据权利要求19所述的风道部件,其特征在于,所述第一风道件包括第一电机支架和第一围板,所述第一风机组件的电机与所述第一电机支架连接,所述第一围板限定出第一风道,所述第一风机组件位于所述第一风道内;
    所述第二风道件包括第二电机支架和第二围板,所述第二风机组件的电机与所述第二电机支架连接,所述第二围板限定出第二风道,所述第二风机组件位于所述第二风道内,所 述第二风道与所述第一风道连通。
  22. 根据权利要求21所述的风道部件,其特征在于,在出风方向上,所述第一风机组件位于所述第二风机组件的下游,
    所述第一风机组件的叶片与所述第一电机支架之间的垂直距离为L31,
    所述第二风机组件的叶片与所述第二电机支架之间的垂直距离为L32,其中L32>L31。
  23. 根据权利要求21所述的风道部件,其特征在于,所述第二风机组件的叶片与所述第二风道的内壁之间的最小距离为L5,
    所述叶片上与所述轮毂的旋转轴线相距最远的点位于参考圆上,所述参考圆的直径为D1,其中0.01≤L5/D1≤0.09。
  24. 根据权利要求23所述的风道部件,其特征在于,所述L5与D1的比值满足:0.02≤L5/D1≤0.03。
  25. 根据权利要求19所述的风道部件,其特征在于,所述风道安装板还包括第三风道件,所述第三风道件与所述第一风道件沿上下方向间隔开,
    所述风机组件包括第三风机组件,所述第三风机组件的旋转轴线与所述第一风机组件的旋转轴线彼此平行且间隔开,所述第三风机组件与所述第三风道件连接。
  26. 根据权利要求21所述的风道部件,其特征在于,在出风方向上,所述第一风机组件位于所述第二风机组件的下游,所述第一风机组件的电机位于对应的所述安装腔的深度大于所述第二风机组件的电机位于对应的所述安装腔的深度。
  27. 一种空调器,其特征在于,包括根据权利要求15-26中任一项所述的风道部件。
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