WO2017054503A1 - 空气净化器及其送风装置 - Google Patents

空气净化器及其送风装置 Download PDF

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Publication number
WO2017054503A1
WO2017054503A1 PCT/CN2016/084958 CN2016084958W WO2017054503A1 WO 2017054503 A1 WO2017054503 A1 WO 2017054503A1 CN 2016084958 W CN2016084958 W CN 2016084958W WO 2017054503 A1 WO2017054503 A1 WO 2017054503A1
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WIPO (PCT)
Prior art keywords
fan
air
hub
air blowing
motor
Prior art date
Application number
PCT/CN2016/084958
Other languages
English (en)
French (fr)
Inventor
苏峻
王毅
于卓立
大本雄也
Original Assignee
小米科技有限责任公司
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Publication date
Application filed by 小米科技有限责任公司 filed Critical 小米科技有限责任公司
Priority to KR1020167020651A priority Critical patent/KR101879730B1/ko
Priority to JP2016549293A priority patent/JP6461172B2/ja
Priority to RU2016131885A priority patent/RU2651909C2/ru
Publication of WO2017054503A1 publication Critical patent/WO2017054503A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/007—Axial-flow pumps multistage fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
    • 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
    • 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
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using 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
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/053—Shafts
    • 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
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • F04D29/329—Details of the hub
    • 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
    • F04D29/522—Casings; Connections of working fluid for axial 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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/007—Ventilation with forced flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/065—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit fan combined with single duct; mounting arrangements of a fan in a duct
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/80—Self-contained air purifiers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2273/00—Operation of filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2273/30—Means for generating a circulation of a fluid in a filtration system, e.g. using a pump or a fan
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • 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
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/545—Ducts
    • F04D29/547—Ducts having a special shape in order to influence fluid flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/12—Kind or type gaseous, i.e. compressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F2006/008—Air-humidifier with water reservoir
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F24F2013/205—Mounting a ventilator fan therein

Definitions

  • the present disclosure relates to the field of air supply of an air purifier, and more particularly to an air supply device and an air cleaner using the same.
  • an air purifier usually uses a fan as a blowing device to supply air, and the structure of the fan directly affects the air blowing efficiency of the air purifier, the magnitude of noise generated, and the like.
  • the present disclosure provides an air purifier and an air blowing device thereof.
  • an air blowing device for an air cleaner comprising: a first fan and a second fan having the same air blowing direction and sequentially spaced along the air blowing direction, the first fan Coaxially mounted with the second fan and driven synchronously by the motor;
  • an air purifier including a purifier body and an outlet duct disposed on the purifier body, the outlet duct being installed with the delivery provided by the exemplary embodiment of the present disclosure Wind installation.
  • the technical solution provided by the embodiment of the present disclosure may include the following beneficial effects: by using two motors to synchronously drive two spaced-apart fans, the air blowing efficiency of the air purifier can be effectively improved, and the structure is simple and practical.
  • FIG. 1 is a cross-sectional structural view of an air cleaner according to an exemplary embodiment.
  • FIG. 2 is a schematic structural view of a blower according to an exemplary embodiment.
  • FIG. 3 is a schematic top plan view of a second fan, according to an exemplary embodiment.
  • FIG. 4 is a top plan view of a first fan, according to an exemplary embodiment.
  • orientation words used such as “up and down” are generally defined in the case where the air purifier provided by the exemplary embodiment of the present disclosure operates normally, and specifically, reference may be made to FIGS. 1 and 2.
  • the illustrations are reversed, and “inside and outside” refer to the inside and outside of the contour of the corresponding part.
  • “Far, near” is defined on the basis of the direction of the supply air, that is, the air flow flows from the near side.
  • an exemplary embodiment of the present disclosure provides an air blowing device of an air cleaner and an air cleaner using the air blowing device.
  • the air blowing device includes a first fan 1 and a second fan 2 which are sequentially arranged in the air blowing direction, and the first fan and the second fan 2 are coaxially mounted and Driven synchronously by motor 3.
  • the two fans are arranged in an up and down manner, that is, the bottom-up air supply is realized.
  • the two fans can also be disposed at any angle. Therefore, by simultaneously driving the two spaced-apart fans by one motor 3, the air blowing efficiency can be effectively improved, so that the purifying ability of the air purifier is improved.
  • the blower air pressure of the first fan 1 can be designed to be larger than that of the second fan 2, and the blower air volume of the second fan 2 is greater than that of the first fan 1.
  • the suction force of the air blowing device can be increased on the one hand, and a large amount of air is collected on the air inlet side of the second fan 2 on the other hand, thereby passing the second fan 2
  • the method of sending a large amount of air is carried out, and then the air supply efficiency of the air purifier is improved.
  • the design of the above wind pressure and air volume can be realized by designing two fan types. For example, in an exemplary embodiment, as shown in FIGS.
  • the first fan 1 may be designed as a mixed flow fan
  • the second fan 2 may be an axial flow fan.
  • the mixed flow fan is interposed between the axial flow fan and the centrifugal fan, and has the characteristics that the wind pressure is greater than that of the axial flow fan.
  • the requirements of the air volume and the wind pressure in the embodiments of the present disclosure can also be achieved by designing the structure of the blades of the two fans.
  • the motor 3 may be a twin-shaft extension motor, that is, having two rotating shafts extending in opposite directions, such as the first rotating shaft 31 shown in FIG. The second rotating shaft 32, thereby achieving synchronous driving of the two fans.
  • the twin-shaft extension motor is installed between the centers of rotation of the first fan 1 and the second fan 2, thereby making full use of the space and reducing the thickness dimension of the overall air blowing device in the reverse direction of the air supply.
  • the two rotating shafts of the motor 3 are driven by the same rotor, that is, the two fans rotate in the same direction and the air blowing direction is the same.
  • the two rotating shafts of the motor 3 can also be reversed. Rotate so that the two fans rotate in opposite directions. In this case, only the reverse design of the design blade can be used to achieve the same air supply direction.
  • the first hub 11 of the first fan 1 is connected to the first rotating shaft 31 of the motor 3, and the second hub 21 of the second fan 2 is connected to the second rotating shaft 32 of the motor 3, the motor
  • the housing 33 of the portion 3 is partially housed in the first hub 11 or the second hub 21, and the exposed end portion is provided with a mounting portion 34 for mounting into the air cleaner.
  • the air purifier in the exemplary embodiment includes a purifier body 5 and an air outlet 6 disposed on the purifier body 5 , wherein the purifier body 5 has air filtering such as a filter element and a water chamber.
  • the above-described air blowing device is installed in the air outlet duct 6. Therefore, the blowing direction in the present embodiment is the direction from the purifier body 5 toward the outlet duct 6, that is, the first fan 1 is disposed close to the purifier body 5, and the second fan 2 is close to the air outlet of the outlet duct 6.
  • the above air blowing device is detachably mounted in the air outlet duct 6.
  • the air supply device can also be permanently fixed in the air outlet duct 6.
  • the housing 33 of the motor 3 is partially inserted into the second hub 21, and the end portion of the second hub 21 is provided with a mounting portion 34, and the air outlet 6 is fixedly provided with a mounting ring seat. 7.
  • the first rotating shaft 31 passes through the center through hole of the mounting ring seat 7 and is detachably connected to the second fan 2, and the mounting portion 34 is snapped onto the mounting ring seat 7.
  • the air blowing device in the embodiment can be installed by means of the air outlet.
  • the motor 3 and the second fan 2 can be assembled together first, and the first rotating shaft 31 is passed through the mounting ring through the air outlet of the air outlet 6 .
  • the first rotating shaft 31 and the first fan 1 may be assembled from the side of the purifier body 5.
  • the mounting ring seat 7 can be fixed to the middle school of the air outlet 6 by circumferentially spaced connecting ribs, or can be realized by an annular plate fixed to the air outlet 6.
  • There are various implementations of the detachable connection of the mounting portion 34 and the mounting ring seat 7 in order to facilitate the assembly of the two for example, wherein the mounting portion 34 can be arranged along the outer circumference with a plurality of blocks arranged on the mounting ring 7 There is a card slot, so that the card can be locked in the circumferential direction of the card slot, and the operation is convenient.
  • the snap-fit structure has other various manners, or a threaded connection between the mounting portion 34 and the mounting ring 7 is also possible.
  • a detachable manner can be adopted between the second fan 2 and the second rotating shaft 32.
  • the second rotating shaft 32 passes through the second hub 21 and is connected to the second hub 21 profile.
  • the profiled connection is a non-circular cross-section of the hole shaft, which can transmit torque without limiting the axial movement, for example.
  • the corresponding portion of the second rotating shaft 32 is formed as a rectangular shaft, or a corresponding mating matching surface can be processed, and the two can also be connected by means of splines, threads or the like.
  • the end of the second rotating shaft 32 is detachably coupled to the limit nut 8, the assembly between the second fan 2 and the motor 3 is completed.
  • the first rotating shaft 31 passes through the first hub 11 and is connected to the first hub 11 profile, which also facilitates assembly and disassembly of the two.
  • the end of the first shaft 31 is detachably connected to the guiding cap 4 .
  • the guiding cap 4 has the function of guiding the airflow in addition to limiting the first fan.
  • the guide cap 4 is formed as a cone cap having a curved head.
  • the air outlet 6 includes a first air duct 61 and a second air duct 62 that are located in the air blowing direction, and the first air duct 61 is formed along the air blowing direction.
  • the tapered structure having a gradually increasing cross section, the second air passage 62 is formed as a cylindrical structure, by which the purifier body 5 adjacent to the first air passage 61 can be fully utilized in the lateral space to minimize the purifier.
  • the lateral dimension of the body 5 thus reduces the footprint.
  • the first air passage 61 of the shape is transitioned, and the second air passage 62 having a larger cross section can be used, thereby ensuring the air supply amount and efficiency of the air cleaner.
  • the first fan 1 is located in the first air duct 61
  • the second fan 2 is located in the second air duct 62 .
  • the side edge of the guiding cap 4 located at the center of the proximal end of the first hub 11 can be substantially parallel to the side wall of the first air duct 61, so that the airflow smoothly flows under the guidance of the guiding cap 4 as indicated by the arrow of FIG.
  • the air blowing direction of the first fan 1 is inclined outward in the axial direction
  • the air blowing direction of the second fan 2 extends in the axial direction.
  • the air blowing and the air blowing directions of the first fan 1 are substantially the same, and the noise can be further reduced while ensuring that the second fan 2 is blown.
  • the manner in which the air outlet direction of the first fan 1 is realized may be achieved by bending the first blade 12 slightly toward the near side in the axial direction.
  • the diameters of the first fan 1 and the second fan 2 are the same.
  • the second fan 2 can send all the air volume provided by the first fan 1 to ensure the air supply efficiency.
  • the diameter of the first fan 1 may be slightly smaller than the diameter of the second fan 2, and the degree of the size deviation depends on the second fan 1 The degree of tilting outward. That is, the first fan 1 can be designed to be slightly smaller in the case of ensuring that the air volume of the first fan 1 is fully utilized, which also facilitates adaptation to the tapered gradation structure accommodated in the first duct 61.
  • the spacing between the two fans is related to the noise generated by the air blowing device. The farther the two fans are, the smaller the noise is. However, the infinite spacing not only occupies space but also reduces the effect of the two fans working together. In this embodiment, the distance between the first fan 1 and the second fan 2 is 4 mm to 200 mm.
  • the two spaced-apart fans can also be regarded as two fans which are cut by a thicker fan and cut the intermediate portion, that is, as shown in FIGS. 3 and 4, the first fan 1
  • the number of first blades 12 is the same as the number of second blades 22 of the second fan 2, for example, 9 leaves.
  • the second blade 22 is circumferentially rearward and first The blades 12 are staggered.
  • the adjacent first blade 12 and second blade 22 refer to the two blades having the shortest distance.
  • the reason for this design is that due to the presence of the gap between the two fans, the airflow flowing to this interval is retarded by the resistance, so that the second blade 22 is rearward and the first blade in the circumferential direction, that is, the rotational direction.
  • the 12 is staggered, so that the partially retarded gas can smoothly enter the second fan 2, thereby forming a continuous and smooth airflow, which can effectively reduce the noise in addition to the gas supply efficiency.

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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)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

一种空气净化器及其送风装置，该送风装置包括具有相同送风方向且沿该送风方向依次间隔布置的第一风扇(1)和第二风扇(2)，所述第一风扇(1)和所述第二风扇(2)同轴安装且通过电机(3)同步驱动。通过使用一个电机同步驱动两个间隔设置的风扇，能够有效提升空气净化器的送风效率，并且结构简单、实用性强。

Description

空气净化器及其送风装置
本申请基于申请号为201510634781.4、申请日为2015年9月29日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本公开涉及空气净化器的送风领域，尤其涉及一种送风装置和使用该送风装置的空气净化器。
背景技术
相关技术中，空气净化器通常使用风扇作为送风装置来送风，风扇的结构直接影响着空气净化器的送风效率、产生的噪音大小等性能。
发明内容
为克服相关技术中存在的问题，本公开提供一种空气净化器及其送风装置。
根据本公开实施例的第一方面，提供一种空气净化器的送风装置，包括具有相同送风方向且沿该送风方向依次间隔布置的第一风扇和第二风扇，所述第一风扇和所述第二风扇同轴安装且通过电机同步驱动；
根据本公开实施例的第二方面，提供一种空气净化器，包括净化器本体和设置在该净化器本体上的出风道，所述出风道安装有本公开示例性实施例提供的送风装置。
本公开的实施例提供的技术方案可以包括以下有益效果：通过使用一个电机同步驱动两个间隔设置的风扇，能够有效提升空气净化器的送风效率，并且结构简单、实用性强。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的空气净化器的剖视结构示意图。
图2是根据一示例性实施例示出的送风装置的结构示意图。
图3是根据一示例性实施例示出的第二风扇的俯视结构示意图。
图4是根据一示例性实施例示出的第一风扇的俯视结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
在未作相反说明的情况下，使用的方位词如“上、下”通常以本公开示例性实施例提供的空气净化器正常工作的情况下定义的，具体地可参考图1和图2所示的图面反向，“内、外”则是指相应部件轮廓的内和外。“远、近”是以送风方向为基准定义的，即气流从近向远流动。
如图1至图4所示，本公开一示例性实施例提供了一种空气净化器的送风装置和使用该送风装置的空气净化器。如图1和图2所示，在本实施例中，该送风装置包括沿送风方向依次间隔布置的第一风扇1和第二风扇2，第一风扇和第二风扇2同轴安装且通过电机3同步驱动。其中，两个风扇为上下布置方式，即实现自下而上的送风，在其他实施例中，两个风扇还可以任意角度设置。因此，通过由一个电机3同步驱动两个间隔设置的风扇能够有效提升送风效率，使得空气净化器净化能力得到提升。
其中，在本实施例中，可以设计第一风扇1的送风风压大于第二风扇2，而第二风扇2的送风风量大于第一风扇1。这样，由于第一风扇1的出风风压较大，一方面能够提升送风装置的吸力，另一方面可以利于在第二风扇2的进风侧聚集大量空气，从而通过第二风扇2以大风量的方式送出，继而实现空气净化器送风效率的提升。其中上述风压和风量的设计，可以通过设计两个风扇类型来实现。例如在示例性实施例中，如图3和图4所示，可以设计第一风扇1为混流风扇，而第二风扇2为轴流风扇。其中，混流风扇介于轴流风扇和离心风扇之间，具有风压大于且风量小于轴流风扇的特点。在其他实施例中，还可以通过设计两个风扇的叶片的结构等方式实现本公开实施例中的风量和风压的要求。
在本示例性实施例中，为了便于一个电机同步驱动两个风扇，电机3可以为双轴伸电机，即具有两个朝向相反反向延伸的转轴，如图1所示的第一转轴31和第二转轴32，从而实现对两个风扇的同步驱动。而该双轴伸电机安装于第一风扇1和第二风扇2的转动中心之间，从而充分利用空间，减少整体送风装置在送风反向上的厚度尺寸。其中在本实施例中，电机3的两个转轴由同一转子驱动，即使得两个风扇的同向转动并且送风方向相同，在其他可能的实施例中，电机3的两个转轴还可以相反转动以使得两个风扇的转动方向相反，此时只需设置设计叶片反向安装同样可以实现两个风扇具有相同的送风方向。
其中作为一种示例性的安装实施例，第一风扇1的第一轮毂11连接于电机3的第一转轴31，第二风扇2的第二轮毂21连接于电机3的第二转轴32，电机3的壳体33部分地装入第一轮毂11或第二轮毂21内，并且露出的端部设置有用于安装到空气净化器中的安装部34。这样，通过将电机3部分地安装到两个轮毂中的一个内可以充分利用两个风扇送风方向上的空间，避免增加送风方向上的的厚度尺寸。另外露出的端部设置的安装部34可以便于将本实施例中的送风装置安装到空气净化器中。
如图1所示，本示例性实施例中的空气净化器包括净化器本体5和设置在该净化器本体5上出风道6，其中净化器本体5内具有滤芯、水腔等空气过滤、加湿等组件，为了实现将净化的空间送出，上述的送风装置安装在出风道6内。因此，本实施例中的送风方向为从净化器本体5朝向出风道6的方向，即第一风扇1接近净化器本体5设置，第二风扇2接近出风道6的出风口。其中，在本实施例中，为了方便送风装置安装到空气净化器中并且方便后期养护的拆卸，上述的送风装置可拆卸地安装在出风道6内。在其他可能的实施例中，送风装置也可以永久固定在出风道6中。
如图1所示，电机3的壳体33部分地装入第二轮毂21内，并且伸出该第二轮毂21的端部设置有安装部34，出风道6内固定设置有安装环座7，第一转轴31穿过安装环座7的中心通孔并与第二风扇2可拆卸地连接，安装部34卡接在安装环座7上。这样可以通过借助出风口对本实施例中的送风装置进行安装，例如可以首先将电机3和第二风扇2组装在一起，在通过出风道6的出风口将第一转轴31穿过安装环座7，然而从净化器本体5一侧将第一转轴31与第一风扇1进行组装即可。
其中，安装环座7可以通过周向间隔设置的连接筋条固定在出风道6的中学，也可以通过固定在出风到6的环形板实现。安装部34和安装环座7的可拆卸连接方式有多种实现方式，以便于实现二者的装配，例如，其中安装部34可以沿在外周布置多个卡块，而安装环状7上设置有卡接槽，这样可以通过卡块在卡接槽内周向转动即可实现二者的卡接，操作方便。在其他实施例中，卡接结构具有其他多种方式，或者安装部34与安装环状7之间采用螺纹连接方式也可。
在本实施例中，第二风扇2和第二转轴32之间可以采用可拆卸的方式。例如，第二转轴32穿过第二轮毂21并与该第二轮毂21型面连接，该型面连接为非圆剖面的孔轴配合方式，在不限定轴向移动的同时可以传递扭矩，例如采用第二转轴32相应的部分形成为矩形轴，又或者加工出相应的配合配合型面即可，此外二者还可以采用花键、螺纹等方式实现连接。为了进一步锁定轴向，并且第二转轴32的端部可拆卸地连接有限位螺母8，从而完成第二风扇2和电机3之间的组装。
另外，类似地，第一转轴31穿过第一轮毂11并与该第一轮毂11型面连接，同样便于实现二者的装配和拆卸。其中为了轴向限位，并且第一转轴31的端部可拆卸地连接有引导帽4。其中在本实施例中，该引导帽4除对第一风扇进行限位外，还具有引导气流的作用。如图1和图2所示，由于该引导帽4设置在第一轮毂11的近端中心，可以用于引导气流流向沿周向间隔连接在第一轮廓11的多个第一叶片12，从而在提升送风效率的同时降低造影。其中，为了同时向四周均匀引导气流，引导帽4形成为具有弧形头的锥帽。
此外，在本实施例提供的空气净化器中，出风道6包括位于沿送风方向相接的第一风道61和第二风道62，第一风道61的形成为沿送风方向横截面逐渐增加的锥形结构，第二风道62形成为柱形结构，通过这种设计方式能够使得邻近第一风道61的净化器本体5在横向空间上充分利用，尽可能降低净化器本体5的横向尺寸从而降低占地面积。而通过锥 形的第一风道61过渡，可以使用横截面较大的第二风道62，从而保证空气净化器的送风量和效率。
另外，如图1所示，第一风扇1位于第一风道61，第二风扇2位于第二风道62。这样位于第一轮毂11近端中心的引导帽4的侧边缘能与第一风道61的侧壁基本平行，从而如图2的箭头所示，使得气流在引导帽4的引导下顺畅地流向第一叶片12，从而在保证进风量的情况下降低噪音。进一步地，如图2的箭头所示，第一风扇1的出风方向沿轴向向外倾斜，第二风扇2的出风方向沿轴向延伸。即，第一风扇1的送风和出风方向大致相同，可以在保证为第二风扇2送风的同时进一步降低噪音。其中实现第一风扇1的出风方向的方式可以采用朝向沿轴向稍向近侧弯折第一叶片12实现。
为了充分利用第一风扇1提供的风量，如图1和图2所示，在本实施例中，第一风扇1与第二风扇2的直径相同。这样，第二风扇2可以将第一风扇1提供的风量全部送出，保证送风效率。其中在有些实施例中，例如上述第一风扇1的出风方向向外侧倾斜时，第一风扇1的直径可以略小于第二风扇2的直径，该尺寸偏差的程度取决与第二风扇1的向外倾斜的程度。即在保证充分利用第一风扇1的出风量的情况可以设计第一风扇1稍小，这样还便于适应容纳在第一风道61的锥形渐变结构。
另外，两个风扇之间的间距与送风装置产生的噪音具有关系，两个风扇距离越远噪音越小，然而无限大的间距不仅占据空间而且会降低两个风扇协同工作的效果，因此，在本实施例中，第一风扇1与第二风扇2之间的间距4mm-200mm。
在本实施例中，两个间隔设置的风扇也可以看成为由一个较厚的风扇，将中间区域切断而成的两个风扇，即，如图3和图4所示，第一风扇1的第一叶片12数量与第二风扇2的第二叶片22的数量相同，例如为9叶。为了在存在间隔的情况下，使得两个风扇仍具有类似于一个风扇的气流流畅性，在相邻的第一叶片12和第二叶片22中，第二叶片22在周向上向后与第一叶片12错开。其中相邻的第一叶片12和第二叶片22是指距离最短的两个叶片。这一设计的原因是考虑由于两个风扇之间间隔的存在，流动到这一间隔的气流会受到阻力而被迟滞，因此将第二叶片22在周向即转动方向上向后与第一叶片12错开，可以使得这部分被迟滞的气体能够流畅地进入第二风扇2中，从而形成连续顺畅的气流，除送气效率上得到保证外还能有效降低噪音。
本领域技术人员在考虑说明书及实践本公开后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (17)

  1. 一种空气净化器的送风装置，其特征在于，该送风装置包括具有相同送风方向且沿该送风方向依次间隔布置的第一风扇(1)和第二风扇(2)，所述第一风扇(1)和所述第二风扇(2)同轴安装且通过电机(3)同步驱动。
  2. 根据权利要求1所述的空气净化器的送风装置，其特征在于，所述电机(3)为双轴伸电机，该双轴伸电机安装于所述第一风扇(1)和所述第二风扇(2)的转动中心之间。
  3. 根据权利要求2所述的空气净化器的送风装置，其特征在于，所述第一风扇(1)的第一轮毂(11)连接于所述电机(3)的第一转轴(31)，所述第二风扇(2)的第二轮毂(21)连接于所述电机(3)的第二转轴(32)，所述电机(3)的壳体(33)部分地装入所述第一轮毂(11)或第二轮毂(21)内，并且露出的端部设置有用于安装到所述空气净化器中的安装部(34)。
  4. 根据权利要求1所述的空气净化器的送风装置，其特征在于，所述第一风扇(1)的第一轮毂(11)的近端中心设置有引导帽(4)，以引导气流流向沿周向间隔连接在所述第一轮廓(11)的多个第一叶片(12)。
  5. 根据权利要求4所述的空气净化器的送风装置，其特征在于，所述引导帽(4)形成为具有弧形头的锥帽。
  6. 根据权利要求1所述的空气净化器的送风装置，其特征在于，所述第一风扇(1)与所述第二风扇(2)的直径相同或略小于所述第二风扇(2)的直径。
  7. 根据权利要求1所述的空气净化器的送风装置，其特征在于，所述第一风扇(1)与所述第二风扇(2)之间的间距为4mm-200mm。
  8. 根据权利要求6所述的空气净化器的送风装置，其特征在于，所述第一风扇(1)的第一叶片(12)数量与所述第二风扇(2)的第二叶片(22)的数量相同，并且在相邻的所述第一叶片(12)和所述第二叶片(22)中，所述第二叶片(22)在周向上向后与所述第一叶片(12)错开。
  9. 根据权利要求1所述的空气净化器的送风装置，其特征在于，所述第一风扇(1)的送风风压大于所述第二风扇(2)，所述第二风扇(2)的送风风量大于所述第一风扇(1)。
  10. 根据权利要求1或9所述的空气净化器的送风装置，其特征在于，所述第一风扇 (1)为混流风扇，所述第二风扇(2)为轴流风扇。
  11. 一种空气净化器，包括净化器本体(5)和设置在该净化器本体(5)上出风道(6)，其特征在于，所述出风道(6)内安装有根据权利要求1-10中任意一项所述的送风装置。
  12. 根据权利要求11所述的空气净化器，其特征在于，所述出风道(6)包括位于沿送风方向相接的第一风道(61)和第二风道(62)，所述第一风道(61)的形成为沿送风方向横截面逐渐增加的锥形结构，所述第二风道(62)形成为柱形结构，所述第一风扇(1)位于所述第一风道(61)，所述第二风扇(2)位于所述第二风道(62)。
  13. 根据权利要求12所述的空气净化器，其特征在于，所述第一风扇(1)的出风方向沿轴向向外倾斜，所述第二风扇(2)的出风方向沿轴向延伸。
  14. 一种空气净化器，包括净化器本体(5)和设置在该净化器本体(5)上出风道(6)，其特征在于，所述出风道(6)内可拆卸地安装有送风装置，该送风装置包括具有相同送风方向且沿该送风方向依次间隔布置的第一风扇(1)和第二风扇(2)，所述第一风扇和所述第二风扇(2)同轴安装且通过电机(3)同步驱动，所述电机(3)为双轴伸电机，该双轴伸电机安装于所述第一风扇(1)和所述第二风扇(2)的转动中心之间。
  15. 根据权利要求14所述的空气净化器，其特征在于，所述第一风扇(1)的第一轮毂(11)连接于所述电机(3)的第一转轴(31)，所述第二风扇(2)的第二轮毂(21)连接于所述电机(3)的第二转轴(32)，所述电机(3)的壳体(33)部分地装入所述第二轮毂(21)内，并且露出该第二轮毂(21)的端部设置有安装部(34)，所述出风道(6)内固定设置有安装环座(7)，所述第一转轴(31)穿过所述安装环座(7)的中心通孔并与所述第二风扇(2)可拆卸地连接，所述安装部(34)可拆卸地连接在所述安装环座(7)上。
  16. 根据权利要求15所述的空气净化器，其特征在于，所述第一转轴(31)穿过所述第一轮毂(11)并与该第一轮毂(11)型面连接，并且所述第一转轴的端部可拆卸地连接有引导帽(4)。
  17. 根据权利要求15所述的空气净化器，其特征在于，所述第二转轴(32)穿过所述第二轮毂(21)并与该第二轮毂(21)型面连接，并且所述第二转轴的端部可拆卸地连接有限位螺母(8)。
PCT/CN2016/084958 2015-09-29 2016-06-06 空气净化器及其送风装置 WO2017054503A1 (zh)

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