WO2021022895A1 - 混流风机和空调器 - Google Patents

混流风机和空调器 Download PDF

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Publication number
WO2021022895A1
WO2021022895A1 PCT/CN2020/095198 CN2020095198W WO2021022895A1 WO 2021022895 A1 WO2021022895 A1 WO 2021022895A1 CN 2020095198 W CN2020095198 W CN 2020095198W WO 2021022895 A1 WO2021022895 A1 WO 2021022895A1
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WO
WIPO (PCT)
Prior art keywords
mixed flow
outer ring
flow fan
hub
air inlet
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PCT/CN2020/095198
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English (en)
French (fr)
Inventor
董明珠
王千千
陈诚
何振健
吴晓岳
戴志炜
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珠海格力电器股份有限公司
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Publication of WO2021022895A1 publication Critical patent/WO2021022895A1/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
    • F04D23/00—Other rotary non-positive-displacement 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
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • 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
    • 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
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • 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
    • 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
    • F04D29/403—Casings; Connections of working fluid 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
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • 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
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps

Definitions

  • the application relates to the technical field of fans, and specifically to a mixed flow fan and an air conditioner.
  • the fans in air conditioners are usually cross flow fans, centrifugal fans and axial fans.
  • the cross flow fan can achieve the air supply effect of radial air intake and radial air output
  • the centrifugal fan can achieve the air supply effect of axial air intake and radial air output, and the centrifugal fan can change the air outlet direction
  • Axial flow fan can achieve the air supply effect of air intake from the axial direction and air output from the axial direction, and the axial flow fan can meet the straight air intake and output.
  • the mixed flow fan is between the centrifugal fan and the axial flow fan, but the mixed flow blades of the mixed flow fan in the related art are all located in the outer ring, so that the airflow can only flow into or out of the mixed flow blade along the axial direction of the outer ring.
  • the main purpose of this application is to provide a mixed flow fan and air conditioner to solve the problem that the air flow in the prior art can only flow into or out of the mixed flow blade along the axial direction of the outer ring.
  • a mixed flow fan including: a hub; mixed flow blades, a plurality of mixed flow blades are arranged at intervals along the circumferential direction of the hub; an outer ring, the outer ring is arranged on the plurality of mixed flow blades On the outer peripheral side, the outer ring is connected with the hub through the mixed flow blades; wherein, the mixed flow blades include a protruding part which extends out of the outer ring.
  • an air flow channel is enclosed between the outer ring and the hub; along the axial direction of the outer ring, the air flow channel has an air inlet and an air outlet; the extension part extends from the air inlet and/or the air outlet to the outside of the outer ring to make The airflow flows into or out of the airflow channel along the axial direction of the hub and/or the radial direction of the hub.
  • the height of the protruding part is H1
  • the height of the mixed flow blade is H2, where 1/5 ⁇ H1/H2 ⁇ 1/2.
  • the mixed flow fan further includes a splitter blade which is arranged between two adjacent mixing blades; wherein the length of the splitter blade in the axial direction of the hub is less than the length of the mixed flow blade in the axial direction of the hub.
  • splitter blade is provided between any two adjacent mixing blades.
  • the shunt blades are arranged close to the air outlet.
  • the fourth end surface of the splitter blade away from the air inlet is flush with the third end surface of the mixing blade away from the air inlet.
  • the inner diameter of the outer ring gradually increases; or, along the direction from the air inlet to the air outlet, the inner diameter of the outer ring gradually increases and then gradually decreases.
  • the hub has an inner ring, a plurality of mixed flow blades are arranged on the outer peripheral wall of the inner ring at intervals around the circumference of the inner ring; the mixed flow blades are arranged between the inner ring and the outer ring; wherein, along the axial direction of the outer ring, the outer The first end surface of the ring away from the air inlet is flush with the second end surface of the inner ring away from the air inlet; or along the axial direction of the outer ring, the first end face of the outer ring away from the air inlet is higher than the inner ring away from the air inlet Or along the axial direction of the outer ring, the first end surface of the outer ring away from the air inlet is lower than the second end surface of the inner ring away from the air inlet.
  • the third end surface of the mixed flow blade away from the air inlet is flush with the first end surface and the second end surface.
  • the air flow channel has an air inlet and an air outlet, the air inlet is arranged in a radial direction along the outer ring, and the air outlet is arranged in an axial direction along the outer ring; the extension part extends from the air inlet and/or the air outlet to the outer ring outer.
  • splitter blades are arranged at one end of the hub close to the air outlet.
  • an air conditioner including the above-mentioned mixed flow fan.
  • the air conditioner includes: a housing, the housing has an upper air outlet and a lower air outlet, the mixed flow fan is arranged in the housing; a heat exchanger, the heat exchanger is arranged in the housing, and the mixed flow fan introduces the airflow outside the housing through the upper air inlet Inside the shell and exchange heat with the heat exchanger, it is discharged out of the shell through the downwind port; or, the mixed flow fan introduces the airflow outside the shell into the shell through the downwind port, exchanges heat with the heat exchanger, and then discharges out of the shell through the upwind port.
  • the protruding part of the mixing blade extends out of the outer ring, so that the air flow outside the outer ring can not only flow into or out of the mixing blade in the axial direction of the hub, but also flow in the radial direction of the hub. Or flow out of the mixed flow blades, so that the mixed flow fan provided by the present application can achieve the technical effect of both the axial and the radial direction of the air inlet or outlet.
  • Fig. 1 shows a three-dimensional schematic diagram of a mixed flow fan according to the first embodiment of the present application
  • Figure 2 shows a schematic diagram of the front view of the mixed flow fan in Figure 1;
  • Fig. 3 shows a schematic cross-sectional structure diagram of the mixed flow fan in Fig. 2;
  • FIG. 4 shows a schematic diagram of the three-dimensional structure of the hub and mixed flow blades of the mixed flow fan in FIG. 1;
  • Figure 5 shows a schematic front view of the structure of the hub and mixed flow blades in Figure 4.
  • FIG. 6 shows a schematic diagram of the three-dimensional structure of the hub, the mixing blades and the splitting blades of the mixed flow fan according to the second embodiment of the present application;
  • Fig. 7 shows a schematic view of the front structure of the hub, mixed flow blades and split flow blades in 6.
  • the present application provides a mixed flow fan and an air conditioner.
  • the mixed flow fan includes a hub 10, mixed flow blades 20 and an outer ring 30.
  • a plurality of mixed flow blades 20 are arranged at intervals along the circumferential direction of the hub 10, and the outer ring 30 is provided on the outer peripheral side of the plurality of mixed flow blades 20.
  • the outer ring 30 is connected to the hub 10 through the mixed flow blade 20; wherein, the mixed flow blade 20 includes an extension 201 that extends outside the outer ring 30.
  • the air flow outside the outer ring 30 can flow into or out of the mixed flow blade 20 in the axial direction of the hub 10, and can also flow along the The hub 10 radially flows into or out of the mixed flow blade 20, so that the mixed flow fan provided by the present application can achieve the technical effect of both the axial and the radial direction of air intake or air output.
  • an airflow channel 301 is enclosed between the outer ring 30 and the hub 10; along the axial direction of the outer ring 30, the airflow channel 301 has an air inlet 302 and an air outlet 303; the extension 201 is formed by the air inlet 302 and/or The tuyere 303 extends to the outside of the outer ring 30 to allow the airflow to flow into or out of the airflow channel 301 along the axial direction of the hub 10 and/or the radial direction of the hub 10.
  • the extension 201 can be located on the air inlet side or the air outlet side.
  • the extension 201 when the extension 201 extends from the air inlet 302 to the outside of the outer ring 30, the airflow flows into the airflow channel 301 along the axial direction of the hub 10 and/or the radial direction of the hub 10, and then flows in the guide of the mixing blade 20 It flows out through the air outlet 303 under the action of air flow; when the extension 201 extends from the air outlet 303 to the outside of the outer ring 30, the air flow enters the air flow channel 301 from the air inlet 302 under the guidance of the mixing blade 20, and then flows in the mixed flow.
  • the blade 20 flows out of the airflow channel 301 along the axial direction of the hub 10 and/or the radial direction of the hub 10 under the guiding action of the blade 20.
  • the air inlet 302 is oriented along the radial direction of the outer ring 30 and the air outlet 303 is oriented along the axial direction of the outer ring 30.
  • the extension 201 extends from the air inlet 302 of the outer ring 30 to the outside of the outer ring 30 along the axial direction of the hub 10. In this way, the air flow can enter the mixed flow blade 20 from the axial and radial directions of the protruding portion 201 exposed to the outer ring 30, which increases the functional power of the mixed flow fan and provides new options for the development of different models.
  • the height of the protrusion 201 is H1
  • the height of the mixed flow blade 20 is H2, where 1/5 ⁇ H1/H2 ⁇ 1/2. Tests have shown that when the height H1 of the extension 201 is within the above numerical range, the fan has a better use effect.
  • H1/H2 1/3.
  • H1/H2 1/4.
  • the inner diameter of the outer ring 30 gradually increases, which is adapted to the structure of the mixing blade 20, so that the wind blown by the mixed flow fan is discharged along the axial and circumferential directions of the mixed flow fan.
  • the inner diameter of the outer ring 30 gradually increases and then gradually decreases.
  • the part where the inner diameter of the outer ring 30 gradually decreases has a wind-gathering effect, so that the wind blown by the mixed-flow fan is concentrated along the axial direction of the mixed-flow fan, which satisfies the effect of enhancing the use of concentrated air.
  • the hub 10 has an inner ring 11, and a plurality of mixed flow blades 20 are arranged on the outer peripheral wall of the inner ring 11 at intervals around the circumference of the inner ring 11; the mixed flow blades 20 are arranged between the inner ring 11 and the outer ring 30 Wherein, along the axial direction of the outer ring 30, the first end surface 31 of the outer ring 30 away from the air inlet 302 and the second end surface 111 of the inner ring 11 away from the air inlet 302 are flush. In this way, it is convenient to process and assemble the mixed flow fan.
  • the third end surface 21 of the mixed flow blade 20 away from the air inlet 302 is flush with the first end surface 31 and the second end surface 111. In this way, it is convenient to process and assemble the mixed flow fan.
  • the first end surface 31 of the outer ring 30 away from the air inlet 302 is higher than the second end surface of the inner ring 11 away from the air inlet 302 111.
  • the wind blown by the mixed-flow fan can be concentrated along the axial direction of the mixed-flow fan, which satisfies the effect of enhancing the use of concentrated air.
  • the first end surface 31 of the outer ring 30 away from the air inlet 302 is lower than the second end surface of the inner ring 11 away from the air inlet 302 111.
  • the third end surface 21 of the mixed flow blade 20 is arranged obliquely, so that the wind blown by the mixed flow fan can be discharged along the axial and circumferential directions of the mixed flow fan. The effect of use.
  • the mixed flow fan further includes a splitter blade 40, which is arranged between two adjacent mixed flow blades 20; wherein, the splitter blade 40 is in the hub.
  • the length in the axial direction of 10 is smaller than the length of the mixed flow blade 20 in the axial direction of the hub 10. In this way, the use of the splitter blade 40 can achieve a rectification effect.
  • a splitter blade 40 is provided between any two adjacent mixing blades 20.
  • the rectification effect is improved.
  • the splitter blade 40 is provided at one end of the hub 10 close to the air outlet 303.
  • the splitter blade 40 is arranged close to the air outlet 303. In this way, the diverting blade 40 is used to rectify the wind blown from the air outlet 303, and the rectification effect is better.
  • the fourth end surface 41 of the splitter blade 40 away from the air inlet 302 is flush with the third end surface 21 of the mixing blade 20 away from the air inlet 302, so that the mixed flow fan is processed and assembled.
  • the present application also provides an air conditioner including the mixed flow fan described above.
  • Different fans can meet the product requirements of different air conditioners.
  • the mixed-flow fan provided in this application can both enter or discharge air along the axial and radial directions of the hub 10, which increases the performance of the mixed-flow fan and is beneficial for improvement.
  • the performance of the air conditioner provides new options for the development of different types of air conditioners.
  • the air conditioner includes a casing and a heat exchanger, the casing has an upper air port and a lower air port, the mixed flow fan is arranged in the casing, the heat exchanger is arranged in the casing, and the mixed flow fan introduces the airflow outside the casing through the upper air opening Inside the shell and exchange heat with the heat exchanger, it is discharged out of the shell through the downwind port; or, the mixed flow fan introduces the airflow outside the shell into the shell through the downwind port, exchanges heat with the heat exchanger, and then discharges out of the shell through the upwind port.
  • the air conditioner provided in the present application has two operation modes, and the user can select the upper air outlet or the lower air outlet according to actual needs, thereby improving the use effect of the air conditioner.
  • the air conditioner when the air conditioner is in the cooling mode, the air conditioner is in the upper air outlet mode to prevent cold wind from blowing directly on the user, avoid affecting the user’s health, and help improve the user’s experience; when the air conditioner is in the heating mode, The air conditioner uses the downward airflow principle to heat the indoor temperature by using the principle of hot air moving upwards and cold air moving downwards, which enhances the heating effect of the air conditioner and makes the user’s feet feel warm, which is beneficial to further improve the user’s Experience good feelings.
  • the air conditioner further includes an airflow channel switching mechanism arranged inside the housing, and the airflow channel switching mechanism is controlled to change the direction of the airflow to achieve the effect of upper air inlet and lower air outlet, or achieve lower air inlet and upper air outlet Effect.
  • This application provides a new type of mixed flow blade.
  • the new type of mixed flow blade is a structure in which the outer ring 30 does not completely wrap the mixed flow blade 20, and a part of the mixed flow blade is exposed at the lower end, which is equivalent to combining the traditional mixed flow blade and the axial flow blade.
  • a new type of structure that combines the blades in series. It can have the characteristics of these two blades at the same time.
  • the airflow can enter the mixed flow blade 20 along the axial and radial directions of the hub 10 at the same time, which increases the function of the fan and meets the requirements of different machines.
  • the type of development provides new options to meet the needs of different air-conditioning products.
  • orientation words such as “front, back, up, down, left, right”, “horizontal, vertical, vertical, horizontal” and “top, bottom”, etc. indicate the orientation Or the positional relationship is usually based on the positional or positional relationship shown in the drawings, which is only used to facilitate the description of the application and simplify the description. Unless otherwise stated, these positional words do not indicate or imply the pointed device or element It must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the scope of protection of the present application; the orientation word “inside and outside” refers to the inside and outside relative to the contour of each component itself.
  • spatially relative terms such as “above”, “above”, “above”, “above”, etc. can be used here to describe as shown in the figure. Shows the spatial positional relationship between a device or feature and other devices or features. It should be understood that the spatially relative terms are intended to encompass different orientations in use or operation other than the orientation of the device described in the figure. For example, if the device in the figure is inverted, then the device described as “above the other device or structure” or “above the other device or structure” will then be positioned as “below the other device or structure” or “on Under other devices or structures”. Thus, the exemplary term “above” can include both orientations “above” and “below”. The device can also be positioned in other different ways (rotated by 90 degrees or in other orientations), and the relative description of the space used here is explained accordingly.

Abstract

一种混流风机和空调器。混流风机包括：轮毂（10），混流叶片（20），多个混流叶片（20）沿轮毂（10）的周向相间隔地设置；外圈（30），外圈（30）设置在多个混流叶片（20）的外周侧，外圈（30）通过混流叶片（20）与轮毂（10）相连接；混流叶片（20）包括伸出部（201），伸出部（201）伸出至外圈（30）外。该混流风机中由于混流叶片的伸出部伸出至外圈外，使得外圈外的气流能够沿外圈的轴向和径向流入或流出混流叶片。

Description

混流风机和空调器
本申请要求于2019年08月02日提交至中国国家知识产权局、申请号为201910713911.1、发明名称为“混流风机和空调器”的专利申请的优先权。
技术领域
本申请涉及风机技术领域，具体而言，涉及一种混流风机和空调器。
背景技术
空调器中的风机通常为贯流风机、离心风机和轴流风机。其中，贯流风机可以实现由径向进风、由径向出风的送风效果；离心风机可以实现由轴向进风、由径向出风的送风效果，离心风机能够改变出风方向；轴流风机可以实现由轴向进风、由轴向出风的送风效果，轴流风机能够满足直向进出风。
混流风机介于离心风机和轴流风机之间，但相关技术中的混流风机的混流叶片均位于外圈内，导致气流仅能够沿外圈的轴向流入或流出混流风叶。
发明内容
本申请的主要目的在于提供一种混流风机和空调器，以解决现有技术中的气流仅能够沿外圈的轴向流入或流出混流叶片的问题。
为了实现上述目的，根据本申请的一个方面，提供了一种混流风机，包括：轮毂；混流叶片，多个混流叶片沿轮毂的周向相间隔地设置；外圈，外圈设置在多个混流叶片的外周侧，外圈通过混流叶片与轮毂相连接；其中，混流叶片包括伸出部，伸出部伸出至外圈外。
进一步地，外圈与轮毂之间围成气流通道；沿外圈的轴向，气流通道具有进风口和出风口；伸出部由进风口和/或出风口伸出至外圈外，以使气流沿轮毂的轴向和/或轮毂的径向流入或流出气流通道。
进一步地，沿轮毂的轴向，伸出部的高度为H1，混流叶片的高度为H2，其中，1/5≤H1/H2≤1/2。
进一步地，H1/H2＝1/3，或者H1/H2＝1/4。
进一步地，混流风机还包括分流叶片，分流叶片设置在相邻两个混流叶片之间；其中，分流叶片在轮毂的轴向上的长度小于混流叶片在轮毂的轴向上的长度。
进一步地，任意相邻两个混流叶片之间均设置一个分流叶片。
进一步地，分流叶片靠近出风口设置。
进一步地，分流叶片的远离进风口的第四端面与混流叶片的远离进风口的第三端面相平齐。
进一步地，沿进风口至出风口的方向，外圈的内径逐渐增大；或者，沿进风口至出风口的方向，外圈的内径逐渐增大后又逐渐减小。
进一步地，轮毂具有内圈，多个混流叶片绕内圈的周向相间隔地设置在内圈的外周壁上；混流叶片设置在内圈和外圈之间；其中，沿外圈的轴向，外圈的远离进风口的第一端面与内圈的远离进风口的第二端面相平齐；或者沿外圈的轴向，外圈的远离进风口的第一端面高于内圈的远离进风口的第二端面；或者沿外圈的轴向，外圈的远离进风口的第一端面低于内圈的远离进风口的第二端面。
进一步地，混流叶片的远离进风口的第三端面与第一端面和第二端面均平齐。
进一步地，气流通道具有进风口和出风口，进风口朝向沿外圈的径向设置，出风口朝向沿外圈的轴向设置；伸出部由进风口和/或出风口伸出至外圈外。
进一步地，分流叶片设置在轮毂的靠近出风口的一端。
根据本申请的另一方面，提供了一种空调器，包括上述的混流风机。
进一步地，空调器包括：壳体，壳体具有上风口和下风口，混流风机设置于壳体内；换热器，换热器设置于壳体内，混流风机通过上风口将位于壳体外的气流引入壳体内并与换热器进行热交换后通过下风口排出壳体外；或者，混流风机通过下风口将位于壳体外的气流引入壳体内并与换热器进行热交换后通过上风口排出壳体外。
应用本申请的技术方案，由于混流叶片的伸出部伸出至外圈外，从而使位于外圈外的气流既能够沿轮毂的轴向流入或流出混流叶片，又能够沿轮毂的径向流入或流出混流叶片，进而使本申请提供的混流风机能够实现由轴向和径向均进风或出风的技术效果。
附图说明
构成本申请的一部分的说明书附图用来提供对本申请的进一步理解，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1示出了根据本申请的实施例一的混流风机的立体结构示意图；
图2示出了图1中的混流风机的主视结构示意图；
图3示出了图2中的混流风机的剖视结构示意图；
图4示出了图1中的混流风机的轮毂和混流叶片的立体结构示意图；
图5示出了图4中的轮毂和混流叶片的主视结构示意图；
图6示出了根据本申请的实施例二的混流风机的轮毂、混流叶片和分流风叶的立体结构示意图；
图7示出了6中的轮毂、混流叶片和分流风叶的主视结构示意图。
其中，上述附图包括以下附图标记：
10、轮毂；11、内圈；111、第二端面；20、混流叶片；201、伸出部；21、第三端面；30、外圈；31、第一端面；301、气流通道；302、进风口；303、出风口；40、分流叶片；41、第四端面。
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，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本申请及其应用或使用的任何限制。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。
为了解决现有技术中的气流仅能够沿外圈的轴向流入或流出混流叶片的问题，本申请提供了一种混流风机和空调器。
实施例一
如图1至图5所示，混流风机包括轮毂10、混流叶片20和外圈30，多个混流叶片20沿轮毂10的周向相间隔地设置，外圈30设置在多个混流叶片20的外周侧，外圈30通过混流叶片20与轮毂10相连接；其中，混流叶片20包括伸出部201，伸出部201伸出至外圈30外。
在本实施例中，由于混流叶片20的伸出部201伸出至外圈30外，从而使位于外圈30外的气流既能够沿轮毂10的轴向流入或流出混流叶片20，又能够沿轮毂10的径向流入或流出混流叶片20，进而使本申请提供的混流风机能够实现由轴向和径向均进风或出风的技术效果。
可选地，外圈30与轮毂10之间围成气流通道301；沿外圈30的轴向，气流通道301具有进风口302和出风口303；伸出部201由进风口302和/或出风口303伸出至外圈30外，以使气流沿轮毂10的轴向和/或轮毂10的径向流入或流出气流通道301。这样，伸出部201既可以位于进风侧，也可以位于出风侧，通过改变伸出部201的伸出位置，改变气流的流动方向，为不同机型的开发提供了新的选择。
具体来说，当伸出部201由进风口302伸出至外圈30外时，气流沿轮毂10的轴向和/或轮毂10的径向流入气流通道301，然后再在混流叶片20的导流作用下通过出风口303流出；当伸出部201由出风口303伸出至外圈30外时，气流在混流叶片20的导流作用下由进风口302进入气流通道301，然后再在混流叶片20的导流作用下沿轮毂10的轴向和/或轮毂10的径向流出气流通道301。
具体地，进风口302朝向沿外圈30的径向设置，出风口303朝向沿外圈30的轴向设置。
在图1至图3示出的可选实施例中，伸出部201沿轮毂10的轴向由外圈30的进风口302伸出至外圈30外。这样，气流可以由裸露至外圈30的伸出部201的轴向和径向进入混流叶片20，加大了混流风机的做功能力，为不同机型的开发提供了新的选择。
如图3所示，沿轮毂10的轴向，伸出部201的高度为H1，混流叶片20的高度为H2，其中，1/5≤H1/H2≤1/2。经试验表明，当伸出部201的高度H1在上述数值范围内时，风机的使用效果较好。
可选地，H1/H2＝1/3。经试验表明，当伸出部201的高度H1在上述数值范围内时，风机的使用效果更好。
可选地，H1/H2＝1/4。经试验表明，当伸出部201的高度H1在上述数值范围内时，风机的使用效果更好。
可选地，沿进风口302至出风口303的方向，外圈30的内径逐渐增大，与混流叶片20的结构相适配，使混流风机吹出的风沿混流风机的轴向和周向均出风，有利于增强混流风机的周向出风的风量，满足增强周向出风的使用效果。
如图3所示，沿进风口302至出风口303的方向，外圈30的内径逐渐增大后又逐渐减小。外圈30的内径逐渐减小的部分具有聚风效果，使混流风机吹出的风沿混流风机的轴向集中，满足增强集中出风的使用效果。
如图3所示，轮毂10具有内圈11，多个混流叶片20绕内圈11的周向相间隔地设置在内圈11的外周壁上；混流叶片20设置在内圈11和外圈30之间；其中，沿外圈30的轴向，外圈30的远离进风口302的第一端面31与内圈11的远离进风口302的第二端面111相平齐。这样，方便混流风机的加工和装配。
如图3至图5所示，混流叶片20的远离进风口302的第三端面21与第一端面31和第二端面111均平齐。这样，方便混流风机的加工和装配。
在本申请的一个未图示的可选实施例中，沿外圈30的轴向，外圈30的远离进风口302的第一端面31高于内圈11的远离进风口302的第二端面111。这样，可以使混流风机吹出的风沿混流风机的轴向集中，满足增强集中出风的使用效果。
在本申请的一个未图示的可选实施例中，沿外圈30的轴向，外圈30的远离进风口302的第一端面31低于内圈11的远离进风口302的第二端面111。这样，混流叶片20的第三端面21倾斜设置，可以使混流风机吹出的风沿混流风机的轴向和周向均出风，有利于增强混流风机的周向出风的风量，满足增强周向出风的使用效果。
实施例二
实施例二与实施例一的区别在于，如图6和图7所示，混流风机还包括分流叶片40，分流叶片40设置在相邻两个混流叶片20之间；其中，分流叶片40在轮毂10的轴向上的长度小于混流叶片20在轮毂10的轴向上的长度。这样，利用分流叶片40可以起到整流的效果。
可选地，任意相邻两个混流叶片20之间均设置一个分流叶片40。通过增加分流叶片40的数量，提升整流效果。
具体地，分流叶片40设置在轮毂10的靠近出风口303的一端。
如图6和图7所示，分流叶片40靠近出风口303设置。这样，利用分流叶片40对由出风口303吹出的风进行整流，整流效果较好。
如图7所示，分流叶片40的远离进风口302的第四端面41与混流叶片20的远离进风口302的第三端面21相平齐，这样，便混流风机的加工和装配。
根据本申请的另一方面，本申请还提供了一种空调器，包括上述的混流风机。不同的风机可以满足不同的空调器的产品需求，本申请提供的混流风机能够沿轮毂10的轴向和径向均进风或出风，加大了混流风机的做功能力，从而有利于提升空调器的使用性能，为开发不同机型的空调器提供了新的选择。
可选地，空调器包括壳体和换热器，壳体具有上风口和下风口，混流风机设置于壳体内，换热器设置于壳体内，混流风机通过上风口将位于壳体外的气流引入壳体内并与换热器进行热交换后通过下风口排出壳体外；或者，混流风机通过下风口将位于壳体外的气流引入壳体内并与换热器进行热交换后通过上风口排出壳体外。本申请提供的空调器具有两种运行模式，使用者可以根据实际需要选择上出风或者下出风，从而提升了空调器的使用效果。
可选地，空调器处于制冷模式时，空调器为上出风模式，避免冷风对使用者直吹，避免影响使用者健康，有利于提升使用者的体验好感；空调器处于制热模式时，空调器为下出风，利用热空气向上、冷空气向下运动的原理对室内温度进行加热，提升空调器的制热效果，使使用者脚部感受到温暖，有利于进一步地提升使用者的体验好感。
可选地，空调器还包括设置在壳体内部的气流通道切换机构，通过控制气流通道切换机构以改变气流的走向以实现上进风、下出风的效果，或者实现下进风、上出风的效果。
从以上的描述中，可以看出，本申请上述的实施例实现了如下技术效果：
本申请提供了一种新型的混流叶片，新型的混流叶片是一种外圈30不完全包裹混流叶片20的结构，下端有部分的混流叶片露出，这相当于将传统的混流叶片和轴流风叶串联结合的一种新型结构，它可以同时拥有这两种风叶的特性，气流可以同时沿轮毂10的轴向和径向进入混流叶片20，加大了风机做功能力，为满足不同机型的开发提供了新选择，以满足不同的空调产品需求。
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本申请的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图 包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、操作、器件、组件和/或它们的组合。
除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本申请的范围。同时，应当明白，为了便于描述，附图中所示出的各个部分的尺寸并不是按照实际的比例关系绘制的。对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为授权说明书的一部分。在这里示出和讨论的所有示例中，任何具体值应被解释为仅仅是示例性的，而不是作为限制。因此，示例性实施例的其它示例可以具有不同的值。应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步讨论。
在本申请的描述中，需要理解的是，方位词如“前、后、上、下、左、右”、“横向、竖向、垂直、水平”和“顶、底”等所指示的方位或位置关系通常是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，在未作相反说明的情况下，这些方位词并不指示和暗示所指的装置或元件必须具有特定的方位或者以特定的方位构造和操作，因此不能理解为对本申请保护范围的限制；方位词“内、外”是指相对于各部件本身的轮廓的内外。
为了便于描述，在这里可以使用空间相对术语，如“在……之上”、“在……上方”、“在……上表面”、“上面的”等，用来描述如在图中所示的一个器件或特征与其他器件或特征的空间位置关系。应当理解的是，空间相对术语旨在包含除了器件在图中所描述的方位之外的在使用或操作中的不同方位。例如，如果附图中的器件被倒置，则描述为“在其他器件或构造上方”或“在其他器件或构造之上”的器件之后将被定位为“在其他器件或构造下方”或“在其他器件或构造之下”。因而，示例性术语“在……上方”可以包括“在……上方”和“在……下方”两种方位。该器件也可以其他不同方式定位(旋转90度或处于其他方位)，并且对这里所使用的空间相对描述作出相应解释。
需要说明的是，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施方式能够以除了在这里图示或描述的那些以外的顺序实施。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (15)

  1. 一种混流风机，其特征在于，包括：
    轮毂(10)；
    混流叶片(20)，多个所述混流叶片(20)沿所述轮毂(10)的周向相间隔地设置；
    外圈(30)，所述外圈(30)设置在多个所述混流叶片(20)的外周侧，所述外圈(30)通过所述混流叶片(20)与所述轮毂(10)相连接；
    其中，所述混流叶片(20)包括伸出部(201)，所述伸出部(201)伸出至所述外圈(30)外。
  2. 根据权利要求1所述的混流风机，其特征在于，
    所述外圈(30)与所述轮毂(10)之间围成气流通道(301)；沿所述外圈(30)的轴向，所述气流通道(301)具有进风口(302)和出风口(303)；所述伸出部(201)由所述进风口(302)和/或所述出风口(303)伸出至所述外圈(30)外，以使气流沿所述轮毂(10)的轴向和/或所述轮毂(10)的径向流入或流出所述气流通道(301)。
  3. 根据权利要求2所述的混流风机，其特征在于，沿所述轮毂(10)的轴向，所述伸出部(201)的高度为H1，所述混流叶片(20)的高度为H2，其中，1/5≤H1/H2≤1/2。
  4. 根据权利要求3所述的混流风机，其特征在于，H1/H2＝1/3，或者H1/H2＝1/4。
  5. 根据权利要求2至4中任一项所述的混流风机，其特征在于，所述混流风机还包括分流叶片(40)，所述分流叶片(40)设置在相邻两个所述混流叶片(20)之间；其中，所述分流叶片(40)在所述轮毂(10)的轴向上的长度小于所述混流叶片(20)在所述轮毂(10)的轴向上的长度。
  6. 根据权利要求5所述的混流风机，其特征在于，任意相邻两个所述混流叶片(20)之间均设置一个所述分流叶片(40)。
  7. 根据权利要求5所述的混流风机，其特征在于，所述分流叶片(40)靠近所述出风口(303)设置。
  8. 根据权利要求5所述的混流风机，其特征在于，所述分流叶片(40)的远离所述进风口(302)的第四端面(41)与所述混流叶片(20)的远离所述进风口(302)的第三端面(21)相平齐。
  9. 根据权利要求2至4中任一项所述的混流风机，其特征在于，沿所述进风口(302)至所述出风口(303)的方向，所述外圈(30)的内径逐渐增大；或者，沿所述进风口(302)至所述出风口(303)的方向，所述外圈(30)的内径逐渐增大后又逐渐减小。
  10. 根据权利要求2至4中任一项所述的混流风机，其特征在于，
    所述轮毂(10)具有内圈(11)，多个所述混流叶片(20)绕所述内圈(11)的周向 相间隔地设置在所述内圈(11)的外周壁上；所述混流叶片(20)设置在所述内圈(11)和所述外圈(30)之间；
    其中，沿所述外圈(30)的轴向，所述外圈(30)的远离所述进风口(302)的第一端面(31)与所述内圈(11)的远离所述进风口(302)的第二端面(111)相平齐；或者
    沿所述外圈(30)的轴向，所述外圈(30)的远离所述进风口(302)的第一端面(31)高于所述内圈(11)的远离所述进风口(302)的第二端面(111)；或者
    沿所述外圈(30)的轴向，所述外圈(30)的远离所述进风口(302)的第一端面(31)低于所述内圈(11)的远离所述进风口(302)的第二端面(111)。
  11. 根据权利要求10所述的混流风机，其特征在于，所述混流叶片(20)的远离所述进风口(302)的第三端面(21)与所述第一端面(31)和所述第二端面(111)均平齐。
  12. 根据权利要求2所述的混流风机，其特征在于，所述气流通道(301)具有进风口(302)和出风口(303)，所述进风口(302)朝向沿所述外圈(30)的径向设置，所述出风口(303)朝向沿所述外圈(30)的轴向设置；所述伸出部(201)由所述进风口(302)和/或所述出风口(303)伸出至所述外圈(30)外。
  13. 根据权利要求5所述的混流风机，其特征在于，所述分流叶片(40)设置在所述轮毂(10)的靠近所述出风口(303)的一端。
  14. 一种空调器，其特征在于，包括权利要求1至13中任一项所述的混流风机。
  15. 根据权利要求14所述的空调器，其特征在于，所述空调器包括：
    壳体，所述壳体具有上风口和下风口，所述混流风机设置于所述壳体内；
    换热器，所述换热器设置于所述壳体内，所述混流风机通过所述上风口将位于所述壳体外的气流引入所述壳体内并与所述换热器进行热交换后通过所述下风口排出所述壳体外；或者，所述混流风机通过所述下风口将位于所述壳体外的气流引入所述壳体内并与所述换热器进行热交换后通过所述上风口排出所述壳体外。
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