WO2021057226A1 - 一种空气净化器 - Google Patents
一种空气净化器 Download PDFInfo
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- WO2021057226A1 WO2021057226A1 PCT/CN2020/103949 CN2020103949W WO2021057226A1 WO 2021057226 A1 WO2021057226 A1 WO 2021057226A1 CN 2020103949 W CN2020103949 W CN 2020103949W WO 2021057226 A1 WO2021057226 A1 WO 2021057226A1
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- Prior art keywords
- air
- wind wheel
- inlet
- inner diameter
- outlet
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/0328—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing with means for purifying supplied air
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- 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
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- 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
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- 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
- F24F13/28—Arrangement or mounting of filters
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- 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
- F24F3/16—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 purification, e.g. by filtering; by sterilisation; by ozonisation
Definitions
- the utility model relates to the technical field of household appliances, in particular to an air purifier.
- Air purifiers also known as air cleaners, air fresheners, and purifiers, refer to the ability to absorb, decompose or transform various air pollutants (generally including PM2.5, dust, pollen, peculiar smell, decoration pollution, bacteria, allergens, etc. ), a product that effectively improves air cleanliness.
- the existing cylindrical air purifier is limited by the overall structure, and the wind resistance is generally large.
- the power of the power unit can only be increased to increase the rotation speed of the air wheel inside the air purifier, and the air purifier's air resistance is increased. Noise and energy consumption.
- the purpose of the utility model is to provide an air purifier, which aims to solve the technical problems of large internal wind resistance and poor air circulation in the existing air purifier.
- An air purifier includes a housing, a filter assembly and a wind guide assembly.
- An air duct for air circulation is formed in the housing, and the air duct has an air duct arranged on the housing.
- the air duct inlet and the air duct outlet, the filter assembly is installed in the air duct and located close to the air duct inlet
- the air guide assembly is installed in the air duct and located close to the air duct outlet Position
- the air duct is provided with a pressurization structure
- the pressurization structure is located between the filter assembly and the air guide assembly
- the pressurization structure has a pressurization air inlet and a pressurization air outlet
- the increase The pressurized air inlet is close to the filter assembly, the pressurized air outlet is close to the air guide assembly, and the inner diameter of the pressurized air inlet is larger than the inner diameter of the pressurized air outlet.
- the ratio of the inner diameter of the supercharged air inlet to the inner diameter of the supercharged air outlet is not less than 1.2.
- the inner diameter of the supercharging structure gradually decreases along the direction from the supercharging air inlet to the supercharging air outlet.
- the inner wall of the pressurizing structure is a smooth inclined surface.
- the wind guide assembly includes a rotating electric machine and a wind wheel, the rotating electric machine drives the wind wheel to rotate, the wind wheel has a wind wheel air inlet and a wind wheel air outlet, and the wind wheel air inlet is close to the wind wheel.
- the inner diameter of the supercharging air outlet is not less than the inner diameter of the air inlet of the wind wheel.
- the wind wheel includes a wind wheel frame and a plurality of wind wheel blades, the wind wheel frame is of a circular ring structure, and a plurality of the wind wheel blades are installed on the inner wall of the wind wheel frame at intervals, One end of the rotor blade close to the air inlet of the rotor has an oblique angle.
- the air guide assembly further includes an air guide, the air guide is installed between the wind wheel and the outlet of the air duct, the air guide includes an air guide bracket and a number of guides A plurality of the air guide plates are installed on the air guide bracket at intervals.
- the housing includes a side wall
- the air duct inlet is provided on the side wall
- the filter assembly includes a ring-shaped filter element
- the ring-shaped filter element is attached to the inner side of the side wall
- the filter assembly further includes a ring-shaped filter screen, the ring-shaped filter screen is arranged between the side wall and the ring-shaped filter element.
- the filter assembly further includes a deodorizing element installed in the air duct and located between the air duct inlet and the pressurizing structure.
- An air purifier implementing the present utility model has the following beneficial effects: the filter assembly is installed at the inlet of the air duct, the air guide assembly is installed at the outlet of the air duct, and the filter assembly in the air duct and the air guide assembly A pressurized structure is formed between the pressurized structure, and the inner diameter of the pressurized air inlet of the pressurized structure is larger than the inner diameter of the pressurized air outlet. The air entering the air purifier from the air duct inlet is filtered by the filter assembly and reaches the pressurized structure.
- the design that the inner diameter of the pressurized air inlet is larger than the inner diameter of the pressurized air outlet in the pressure structure increases the air flow rate at the pressurized air outlet, improves the air circulation speed, and solves air purification without increasing the power of the power unit.
- the problem of large internal wind resistance and poor air circulation can avoid additional noise and energy consumption when the air purifier is used, and improve the working efficiency of the air purifier.
- Fig. 1 is a cross-sectional view of an air purifier provided by an embodiment of the present invention.
- Fig. 2 is a schematic structural diagram of a wind wheel in an air purifier provided by an embodiment of the present utility model.
- Fig. 3 is a schematic diagram of the structure of the air guide in the air purifier provided by the embodiment of the present utility model.
- FIG. 1 is an air purifier provided by an embodiment of the present invention.
- the air purifier includes a housing 100, a filter assembly 200, and an air guide assembly 300.
- the housing 100 is formed with an air duct 400 for air circulation.
- 400 has an air duct inlet 410 and an air duct outlet 420 arranged on the housing 100.
- the filter assembly 200 is installed in the air duct 400 and is located close to the air duct inlet 410.
- the air guide assembly 300 is installed in the air duct 400 and is located Close to the air duct outlet 420, the air duct 400 is provided with a pressurizing structure 430, the pressurizing structure 430 is located between the filter assembly 200 and the air guide assembly 300, the pressurizing structure 430 has a pressurized air inlet 431 and a pressurized air outlet 432, the pressurized air inlet 431 is close to the filter assembly 200, the pressurized air outlet 432 is close to the air guide assembly 300, and the inner diameter of the pressurized air inlet 431 is larger than the inner diameter of the pressurized air outlet 432.
- the air purifier in this embodiment is a cylindrical air purifier.
- the inner diameter of the supercharged air inlet 431 in the supercharged structure is larger than the inner diameter of the supercharged air outlet 432, the flow rate of the air at the supercharged air outlet 432 is increased, the air circulation speed is increased, and the air intake efficiency of the wind wheel 320 is improved .
- the pressure value improves the working efficiency of the air purifier.
- the ratio of the inner diameter of the supercharged air inlet 431 to the inner diameter of the supercharged air outlet 432 is not less than 1.2.
- the air circulation speed at the booster structure 430 can be effectively increased, thereby increasing the air circulation speed in the air duct 400.
- the inner wall 433 of the pressurizing structure 430 may be designed as a smooth inclined surface, and the inner diameter of the pressurizing structure 430 gradually decreases along the direction from the pressurizing air inlet 431 to the pressurizing air outlet 432.
- the ratio of the inner diameter of the supercharged air inlet 431 to the inner diameter of the supercharged air outlet 432 should not be too large, because if the ratio is too large and the height of the supercharged structure 430 does not increase, the slope of the inner wall 433 If the slope of the inner wall 433 is large, the supercharging effect is not good. If the slope of the inner wall 433 needs to be reduced, the height of the supercharging structure 430 must be increased, which will increase the height of the air purifier. Contrary to the current trend of product miniaturization.
- the wind guide assembly 300 includes a rotating motor 310 and a wind wheel 320.
- the output shaft of the rotating motor 310 is connected to the wind wheel 320 and drives the wind wheel 320 to rotate.
- the wind wheel 320 has a wind wheel inlet 321 and a wind wheel.
- the air outlet 322, the wind wheel air inlet 321 is close to the supercharging structure 430, and the inner diameter of the booster air outlet 432 is not less than the inner diameter of the wind wheel air inlet 321.
- the wind wheel 320 includes a wind wheel frame 323 and a number of wind wheel blades 324.
- the wind wheel frame 323 has a circular ring structure. A number of wind wheel blades 324 are installed on the inner wall 433 of the wind wheel frame 323 at intervals.
- the wind wheel blades 324 are close to the wind wheel.
- the air inlet 321 has an oblique angle 3241 at one end.
- the end of the wind wheel blade 324 close to the wind wheel air inlet 321 is chamfered, so that the end of the wind wheel blade 324 close to the wind wheel air inlet 321 forms an oblique angle 3241, which reduces the air flow into the wind.
- the air guide assembly 300 further includes an air guide 330, the air guide 330 is installed between the wind wheel 320 and the air duct outlet 420, the air guide 330 includes an air guide bracket 331 and a number of air guide plates 332. Several air guide plates 332 are installed on the air guide bracket 331 at intervals.
- the air guide 330 rectifies the air flow from the air outlet 322 of the wind wheel, improves the static pressure efficiency of the air purifier, and increases the effective static pressure value of the air duct 400, so that the air purifier can operate at a lower speed of the rotating motor 310. Under working conditions, the effect of purifying the ambient air is achieved, thereby reducing the noise of the air purifier.
- the housing 100 includes a side wall 110, a bottom wall 120 and a top wall 130, and the air duct inlet 410 is arranged on the side wall 110.
- the filter assembly 200 includes an annular filter element 210 attached to the inner side of the side wall 110 and located at the air duct inlet 410.
- the inner diameter of the pressurized air inlet 431 is not greater than the inner diameter of the annular filter element 210.
- the filter assembly 200 further includes a ring-shaped filter screen 220, and the ring-shaped filter screen 220 is disposed between the side wall 110 and the ring-shaped filter element 210.
- the ring filter 220 includes a HEPA (High efficiency particulate air filter, high efficiency air filter) filter and an activated carbon filter along its radial direction from the outside to the inside.
- the HEPA filter is the most effective for pollutants such as smoke, dust, and bacteria.
- Filter media, and activated carbon filter can remove volatile organic compounds (such as formaldehyde, toluene, hydrogen sulfide, chlorobenzene) and other pollutants.
- the top of the annular filter element 210 is also provided with a sealing ring (not shown in the figure).
- the sealing ring is an O-shaped sealing ring.
- a sponge material can be used to connect the annular filter element 210 to other components in the air purifier.
- the top of the annular filter element 210 is sealed to prevent the air processed by the filter assembly 200 from flowing out of the air duct 400 from the gap between the elements.
- the filter assembly 200 further includes a deodorizing element 230 installed in the air duct 400 and located between the air duct inlet 410 and the pressurizing structure 430.
- the deodorizing member 230 may use activated carbon as a deodorizing material to eliminate the peculiar smell of the air in the air purifier.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
本实用新型涉及家用电器技术领域，特别涉及一种空气净化器，该空气净化器的过滤组件安装在风道的风道进口位置，导风组件安装在风道的风道出口位置，风道内过滤组件和导风组件之间形成有增压结构，增压结构的增压进风口的内径大于增压出风口的内径，从风道进口进入空气净化器的空气，经过过滤组件的过滤后，到达增压结构，由于增压结构中增压进风口内径大于增压出风口内径的设计，使增压出风口处空气的流速增大，提高了空气的流通速度，在不提高动力装置的功率的前提下解决了空气净化器内部风阻较大，空气流通不畅的问题，避免空气净化器使用时产生额外的噪声和能耗，提高了空气净化器的工作效率。
Description
本实用新型涉及家用电器技术领域，特别涉及一种空气净化器。
随着社会经济水平不断提高，人们对生活质量的要求日益提高，对自身的生活环境越来越关注，空气净化器也越来越普及。空气净化器又称空气清洁器、空气清新器、净化器，是指能够吸附、分解或转化各种空气污染物（一般包括PM2.5、粉尘、花粉、异味、装修污染、细菌、过敏原等），有效提高空气清洁度的产品。现有的圆筒形空气净化器受限于整体构造，风阻一般较大，为了提高空气流通速度，只能提高动力装置的功率以提高空气净化器内部风轮的转速，增加了空气净化器的噪声和能耗。
本实用新型的目的在于提供一种空气净化器，旨在解决现有空气净化器内部风阻较大，空气流通不畅的技术问题。
本实用新型是这样实现的，一种空气净化器，包括：外壳、过滤组件及导风组件，所述外壳中形成有供空气流通的风道，所述风道具有设置在所述外壳上的风道进口和风道出口，所述过滤组件安装在所述风道内，且位于靠近所述风道进口的位置，所述导风组件安装在所述风道内，且位于靠近所述风道出口的位置，所述风道中设有增压结构，所述增压结构位于所述过滤组件和所述导风组件之间，所述增压结构具有增压进风口和增压出风口，所述增压进风口靠近所述过滤组件，所述增压出风口靠近所述导风组件，所述增压进风口的内径大于所述增压出风口的内径。
在一个实施例中，所述增压进风口的内径与所述增压出风口的内径的比值不小于1.2。
在一个实施例中，所述增压结构的内径沿所述增压进风口至所述增压出风口的方向逐渐减小。
在一个实施例中，所述增压结构的内壁为平滑的斜面。
在一个实施例中，所述导风组件包括旋转电机和风轮，所述旋转电机带动所述风轮旋转，所述风轮具有风轮进风口和风轮出风口，所述风轮进风口靠近所述增压结构，所述增压出风口的内径不小于所述风轮进风口的内径。
在一个实施例中，所述风轮包括风轮架和若干个风轮叶片，所述风轮架为圆环结构，若干所述风轮叶片间隔地安装在所述风轮架的内壁上，所述风轮叶片靠近所述风轮进风口的一端具有斜角。
在一个实施例中，所述导风组件还包括导风件，所述导风件安装在所述风轮和所述风道出口之间，所述导风件包括导风支架和若干个导风板，若干个所述导风板间隔安装在所述导风支架上。
在一个实施例中，所述外壳包括侧壁，所述风道进口设置在所述侧壁上，所述过滤组件包括环状滤芯，所述环状滤芯贴附在所述侧壁的内侧，且位于所述风道进口的位置，所述增压进风口的内径不大于所述环状滤芯的内径。
在一个实施例中，所述过滤组件还包括环形滤网，所述环形滤网设置在所述侧壁与所述环状滤芯之间。
在一个实施例中，所述过滤组件还包括除臭件，所述除臭件安装在所述风道内，且位于所述风道进口与所述增压结构之间。
实施本实用新型的一种空气净化器，具有以下有益效果：过滤组件安装在风道的风道进口位置，导风组件安装在风道的风道出口位置，风道内过滤组件和导风组件之间形成有增压结构，增压结构的增压进风口的内径大于增压出风口的内径，从风道进口进入空气净化器的空气，经过过滤组件的过滤后，到达增压结构，由于增压结构中增压进风口内径大于增压出风口内径的设计，使增压出风口处空气的流速增大，提高了空气的流通速度，在不提高动力装置的功率的前提下解决了空气净化器内部风阻较大，空气流通不畅的问题，避免空气净化器使用时产生额外的噪声和能耗，提高了空气净化器的工作效率。
为了更清楚地说明本实用新型实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本实用新型实施例提供的空气净化器的剖视图。
图2是本实用新型实施例提供的空气净化器中风轮的结构示意图。
图3是本实用新型实施例提供的空气净化器中导风件的结构示意图。
上述附图所涉及的标号明细如下：100、外壳；110、侧壁；120、底壁；130、顶壁；200、过滤组件；210、环状滤芯；220、环形滤网；230、除臭件；300、导风组件；310、旋转电机；320、风轮；321、风轮进风口；322、风轮出风口；323、风轮架；324、风轮叶片；3241、斜角；330、导风件；331、导风支架；332、导风板；400、风道；410、风道进口；420、风道出口；430、增压结构；431、增压进风口；432、增压出风口；433、内壁。
在此处键入本发明的最佳实施方式描述段落。
为了使本实用新型的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本实用新型进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本实用新型，并不用于限定本实用新型。
需说明的是，当部件被称为“固定于”或“设置于”另一个部件，它可以直接或者间接位于该另一个部件上。当一个部件被称为“连接于”另一个部件，它可以是直接或者间接连接至该另一个部件上。术语“上”、“下”、“左”、“右”、“前”、“后”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置为基于附图所示的方位或位置，仅是为了便于描述，不能理解为对本技术方案的限制。术语“第一”、“第二”仅用于便于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明技术特征的数量。“多个”的含义是两个或两个以上，除非另有明确具体的限定。
为了说明本实用新型所述的技术方案，以下结合附图1至3及实施例进行详细说明。
请参阅图1，为本实用新型实施例提供的空气净化器，该空气净化器包括：外壳100、过滤组件200及导风组件300，外壳100中形成有供空气流通的风道400，风道400具有设置在外壳100上的风道进口410和风道出口420，过滤组件200安装在风道400内，且位于靠近风道进口410的位置，导风组件300安装在风道400内，且位于靠近风道出口420的位置，风道400中设有增压结构430，增压结构430位于过滤组件200和导风组件300之间，增压结构430具有增压进风口431和增压出风口432，增压进风口431靠近过滤组件200，增压出风口432靠近导风组件300，增压进风口431的内径大于增压出风口432的内径。具体地，本实施例中的空气净化器为圆筒空气净化器。
由于增压结构中增压进风口431内径大于增压出风口432内径的设计，使增压出风口432处空气的流速增大，提高了空气的流通速度，提升了风轮320的进气效率，在不提高动力装置的功率的前提下解决了空气净化器内部风阻较大，空气流通不畅的问题，避免空气净化器使用时产生额外的噪声和能耗，增加了整个风道的有效静压值，提高了空气净化器的工作效率。
仍请参阅图1，增压进风口431的内径与增压出风口432的内径的比值不小于1.2。当增压进风口431的内径不小于增压出风口432的内径的1.2倍时，能够有效提高增压结构430处空气的流通速度，进而提高风道400内的空气流通速度。增压结构430的内壁433可设计为平滑的斜面，增压结构430的内径沿增压进风口431至增压出风口432的方向逐渐减小。需要说明的是，增压进风口431的内径与增压出风口432的内径的比值也不宜过大，原因在于，如果该比值过大而增压结构430的高度不增加，则内壁433的斜率将会较大，在内壁433的斜率较大的情况下，增压效果不佳，若需要内壁433的斜率变小，则必须提高增压结构430的高度，则会增加空气净化器的高度，有悖于现今产品小型化的趋势。
请参阅图1和图2，导风组件300包括旋转电机310和风轮320，旋转电机310的输出转轴与风轮320连接，并带动风轮320旋转，风轮320具有风轮进风口321和风轮出风口322，风轮进风口321靠近增压结构430，增压出风口432的内径不小于风轮进风口321的内径。风轮320包括风轮架323和若干个风轮叶片324，风轮架323为圆环结构，若干风轮叶片324间隔地安装在风轮架323的内壁433上，风轮叶片324靠近风轮进风口321的一端具有斜角3241。在设计生产风轮320时，对风轮叶片324靠近风轮进风口321的一端进行斜切处理，使风轮叶片324靠近风轮进风口321的一端形成斜角3241，降低了空气气流进入风轮中时与风轮叶片324接触引起的气动噪声与风压损失。
请参阅图1和图3，导风组件300还包括导风件330，导风件330安装在风轮320和风道出口420之间，导风件330包括导风支架331和若干个导风板332，若干个导风板332间隔安装在导风支架331上。导风件330对风轮出风口322流出的气流进行整流，提高了空气净化器的静压效率，提高了风道400的有效静压值，使空气净化器能够在旋转电机310转速较低的工况下达到净化环境空气的效果，从而降低了空气净化器的噪声。
请参阅图1，外壳100包括侧壁110、底壁120和顶壁130，风道进口410设置在侧壁110上。过滤组件200包括环状滤芯210，环状滤芯210贴附在侧壁110的内侧，且位于风道进口410的位置，增压进风口431的内径不大于环状滤芯210的内径。进一步地，过滤组件200还包括环形滤网220，环形滤网220设置在侧壁110与环状滤芯210之间。其中，环形滤网220沿其径向由外至内包括HEPA（High efficiency particulate air Filter，高效空气过滤器）滤网和活性炭滤网，HEPA滤网是烟雾、灰尘以及细菌等污染物最有效的过滤媒介，而活性炭滤网能够去除挥发性有机化合物（如甲醛、甲苯、硫化氢、氯苯）等污染物。环状滤芯210的顶部还设置有密封圈（图中未示出），该密封圈为O型密封圈，具体可选用海绵材料，用于在环状滤芯210与空气净化器中其它元件连接时，密封环状滤芯210的顶部，避免过滤组件200处理后的空气从元件间隙中流到风道400之外。
过滤组件200还包括除臭件230，除臭件230安装在风道400内，且位于风道进口410与增压结构430之间。除臭件230具体可选用活性炭作为除臭材料，用于消除空气净化器中空气的异味。
以上所述仅为本实用新型的可选实施例而已，并不用以限制本实用新型，凡在本实用新型的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本实用新型的保护范围之内。
Claims (10)
- 一种空气净化器，其特征在于，包括：外壳、过滤组件及导风组件，所述外壳中形成有供空气流通的风道，所述风道具有设置在所述外壳上的风道进口和风道出口，所述过滤组件安装在所述风道内，且位于靠近所述风道进口的位置，所述导风组件安装在所述风道内，且位于靠近所述风道出口的位置，所述风道中设有增压结构，所述增压结构位于所述过滤组件和所述导风组件之间，所述增压结构具有增压进风口和增压出风口，所述增压进风口靠近所述过滤组件，所述增压出风口靠近所述导风组件，所述增压进风口的内径大于所述增压出风口的内径。
- 如权利要求1所述的空气净化器，其特征在于，所述增压进风口的内径与所述增压出风口的内径的比值不小于1.2。
- 如权利要求2所述的空气净化器，其特征在于，所述增压结构的内径沿所述增压进风口至所述增压出风口的方向逐渐减小。
- 如权利要求3所述的空气净化器，其特征在于，所述增压结构的内壁为平滑的斜面。
- 如权利要求1至4任一项所述的空气净化器，其特征在于，所述导风组件包括旋转电机和风轮，所述旋转电机带动所述风轮旋转，所述风轮具有风轮进风口和风轮出风口，所述风轮进风口靠近所述增压结构，所述增压出风口的内径不小于所述风轮进风口的内径。
- 如权利要求1至4任一项所述的空气净化器，其特征在于，所述导风组件包括旋转电机和风轮，所述旋转电机带动所述风轮旋转，所述风轮具有风轮进风口和风轮出风口，所述风轮进风口靠近所述增压结构，所述增压出风口的内径不小于所述风轮进风口的内径。
- 如权利要求6所述的空气净化器，其特征在于，所述导风组件还包括导风件，所述导风件安装在所述风轮和所述风道出口之间，所述导风件包括导风支架和若干个导风板，若干个所述导风板间隔安装在所述导风支架上。
- 如权利要求1至4任一项所述的空气净化器，其特征在于，所述外壳包括侧壁，所述风道进口设置在所述侧壁上，所述过滤组件包括环状滤芯，所述环状滤芯贴附在所述侧壁的内侧，且位于所述风道进口的位置，所述增压进风口的内径不大于所述环状滤芯的内径。
- 如权利要求8所述的空气净化器，其特征在于，所述过滤组件还包括环形滤网，所述环形滤网设置在所述侧壁与所述环状滤芯之间。
- 如权利要求9所述的空气净化器，其特征在于，所述过滤组件还包括除臭件，所述除臭件安装在所述风道内，且位于所述风道进口与所述增压结构之间。
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