WO2020073650A1 - 一种空调室内机 - Google Patents

一种空调室内机 Download PDF

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Publication number
WO2020073650A1
WO2020073650A1 PCT/CN2019/086636 CN2019086636W WO2020073650A1 WO 2020073650 A1 WO2020073650 A1 WO 2020073650A1 CN 2019086636 W CN2019086636 W CN 2019086636W WO 2020073650 A1 WO2020073650 A1 WO 2020073650A1
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Prior art keywords
air
indoor unit
air conditioner
heat exchanger
liquid
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PCT/CN2019/086636
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English (en)
French (fr)
Inventor
庄佳兰
朱振学
董元伟
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青岛海尔空调器有限总公司
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Publication of WO2020073650A1 publication Critical patent/WO2020073650A1/zh

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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
    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents

Definitions

  • the present application relates to the technical field of air conditioning, for example, to an indoor unit of air conditioning.
  • Spray liquid or steam can easily flow out or float out of the air duct and be transferred to the external environment.
  • the wind deflector can close the air outlet and close the air duct, its closing effect is not complete.
  • An embodiment of the present disclosure provides an air conditioner indoor unit.
  • the above air conditioner indoor unit includes: a housing, and an air duct formed in the housing, an air guide plate is provided at an air outlet of the air duct, and an air duct is provided in the air duct to open and close the Closed components of the air duct.
  • the sealing assembly of the present disclosure can close the air duct inside the air duct, when the air conditioner sprays liquid or hot steam to clean the heat exchanger, it can prevent the liquid or hot steam from flowing out of the air duct, and can be connected with the air duct outlet
  • the wind deflector is combined to completely close the air duct and block the entry of external dust.
  • FIG. 1 is a schematic cross-sectional view 1 of an indoor unit of an air conditioner provided by an embodiment of the present disclosure
  • FIG. 2 is a second schematic cross-sectional view of an air conditioner indoor unit provided by an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of a closed assembly of an air conditioner indoor unit provided by an embodiment of the present disclosure
  • FIG. 4 is a schematic structural diagram of an air conditioner indoor unit provided by an embodiment of the present disclosure.
  • FIG. 5 is a three-dimensional structural schematic diagram of an indoor unit of an air conditioner provided by an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of the included angle between the center line of the spray hole of the spray pipe of the air conditioner indoor unit and the surface of the heat exchanger according to an embodiment of the present disclosure. .
  • 1 housing; 10: air duct; 11: collection mechanism; 12: volute tongue; 13: volute component; 2: heat exchanger; 3: first drive device; 31: gear; 41: spray pipe; 411 : Spray hole; 42: conveying pipe; 5: guide mechanism; 6: rack; 71: shutter; 72: second motor; 73: coupling; 74: drive shaft; 75: diversion mechanism; 81: water pump ; 82: water storage tank.
  • the terms “include”, “include” or any other variant thereof are intended to cover non-exclusive inclusion, so that a structure, device or device that includes a series of elements includes not only those elements, but also other items not explicitly listed Elements, or include elements inherent to such structures, devices, or equipment. Without further restrictions, the element defined by the sentence “including one " does not exclude that there are other identical elements in the structure, device or equipment that includes the element.
  • the embodiments in this document are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same and similar parts between the embodiments can be referred to each other.
  • connection should be understood in a broad sense, for example, it may be a mechanical connection or an electrical connection, or it may be the communication between two elements, It may be directly connected or indirectly connected through an intermediate medium.
  • connection should be understood in a broad sense, for example, it may be a mechanical connection or an electrical connection, or it may be the communication between two elements, It may be directly connected or indirectly connected through an intermediate medium.
  • the term “plurality” means two or more.
  • a / B means: A or B.
  • a and / or B means: A or B, or A and B.
  • Fig. 1 is a first schematic cross-sectional view of an air conditioner indoor unit according to an exemplary embodiment
  • Fig. 4 is a schematic structural view of an air conditioner indoor unit according to an exemplary embodiment.
  • the present disclosure provides an indoor unit of an air conditioner, including: a housing 1, a heat exchanger 2 and a controller (not shown) provided in the housing 1, the housing 1 further includes: The liquid is sprayed on the spray pipe 41 on the heat exchanger 2; the controller is used to control the heating of the heat exchanger 2 when the self-cleaning function needs to be activated and control the spray pipe 41 to spray liquid to the heat exchanger 2.
  • the air conditioner indoor unit uses a controller to control the heat exchanger 2 to heat and control the spray pipe 41 to spray liquid to the heat exchanger 2 when the self-cleaning function needs to be activated.
  • the timing at which the spray pipe 41 sprays the liquid to the heat exchanger 2 is at or after the heat exchanger 2 heats up. In this way, combining the temperature of the heat exchanger 2 with the spray strength of the liquid can make the dirt easier to clean.
  • the present disclosure utilizes the heating function of the air conditioner indoor unit itself, combined with spraying liquid on the heat exchanger, without additional steam generating device to convert the liquid into heat Steam can be used to achieve thermal cleaning.
  • the heat exchanger is heated to 60-70 ° C, and then the controller controls the spray pipe to spray, which has a good cleaning effect on the dirt.
  • the higher temperature liquid is beneficial to the cleaning effect, especially to clean the oil-soluble dirt on the surface of the heat exchanger, and has a bactericidal effect.
  • the liquid sprayed from the spray pipe 41 may be water, air conditioning cleaning liquid, or a mixture of water and air conditioning cleaning liquid.
  • the spray pipe 41 communicates with the liquid source to realize the supply of liquid.
  • the source of the liquid is the liquid storage tank.
  • the liquid storage tank can be externally placed in the indoor unit of the air conditioner, for example, placed on a balcony or outdoors, or can be built in the indoor unit of the air conditioner.
  • the spray pipe 41 may be directly connected to the tap water pipe.
  • the spray pipe 41 is connected to the water storage tank 82 through the delivery pipe 42.
  • a liquid pressurized delivery device is provided on the delivery tube.
  • a water pump 81 is provided on the delivery tube 42 so that the liquid has sufficient power to be delivered to the spray tube 41.
  • the indoor unit of the air conditioner is generally provided with a water receiving tray for collecting condensed water.
  • the water receiving tray is located below the heat exchanger 2.
  • the liquid washed by the heat exchanger 2 can fall into the water receiving tray and drain through the water receiving tray Pipe discharge.
  • the housing 1 further includes a first driving device 3 which drives the spray pipe 41 to move laterally to spray the liquid to the heat exchanger 2 To make the spray area fully cover the heat exchanger 2.
  • the first driving device 3 includes: a first motor fixed in the housing 1 and a gear 31 sleeved on the driving shaft of the first motor; It includes: a rack 6 extending laterally along the surface of the heat exchanger 2 and a guide mechanism 5, the rack 6 can slide along the guide mechanism 5 and mesh with the gear 31, and the spray pipe 41 is fixed on the rack 6.
  • the first driving device 3 drives the rack 6 to move laterally along the guide mechanism 5, thereby driving the lateral movement of the spray pipe 41.
  • the spray pipe 41 extends longitudinally along the surface of the heat exchanger 2.
  • the spray pipe 41 is provided with a plurality of spray holes 411 at intervals. Out, spraying is achieved along the length of the spray pipe 41.
  • Fig. 6 is an angle between the center line of the spray hole of the spray pipe of the air conditioner indoor unit and the surface of the heat exchanger according to an exemplary embodiment.
  • ⁇ 60 °
  • L 1, 2, 3, 4, or 5 mm.
  • L increases with the increase of ⁇ . In this way, the sprayed liquid has sufficient cleaning power for the heat exchanger 2.
  • a plurality of shower pipes 41 are provided in parallel, and a shower area can be formed.
  • FIGS. 4 and 5 there are two spray pipes 41, which are respectively fixed to the two ends of the rack 6.
  • two spray pipes 41 move laterally along the surface of the heat exchanger 2 at the same time, the moving path is shortened relative to the single spray pipe 41, and the spraying efficiency is higher.
  • the rack 6 is only slidingly connected to the guide mechanism 5 at both ends and at the center to save connection material.
  • the length of the rack 6 does not exceed half of the lateral length of the heat exchanger 2. In this way, when the spray pipe moves from one end of the heat exchanger 2 to the other end, the heat exchanger 2 is prevented from appearing an area that cannot be sprayed.
  • the guide mechanism 5 is located at one-half of the length direction of the spray pipe 41, so that the spray pipe 41 can be kept stable, avoiding the swing of the spray pipe 41 and affecting the spray.
  • a collection mechanism 11 for collecting spray liquid is provided below the heat exchanger 2. After the spray liquid cleans the heat exchanger 2, it falls into the collection mechanism 11 and is collected.
  • the collection mechanism 11 has a liquid discharge pipe that discharges the spray liquid from the indoor unit.
  • the indoor unit of the air conditioner further includes an air duct 10 formed in the housing 1, an air deflector is provided at an air outlet of the air duct 10, and the air duct 10 is provided with a duct capable of opening and closing Closed assembly of 10; when the closed assembly closes the air duct 10, an enclosed cleaning space is formed in the housing 1.
  • the closing assembly can close the air duct 10 to form an enclosed cleaning space in the housing 1 and prevent spray liquid from flowing out of the air duct 10.
  • the closing assembly closes the air duct 10 inside the air duct 10, cooperates with the air guide plate to close the air outlet of the air duct 10, and enhances the sealing effect of the air duct 10. In addition to preventing the spray liquid from flowing out, it can also block the entry of external dust.
  • Fig. 3 is a schematic structural diagram of a closed assembly of an air conditioner indoor unit according to an exemplary embodiment.
  • the closing assembly includes: a blocking member 71, which is used to close the air duct 10; a second driving device is connected to the blocking member 71, and the second driving device drives the blocking member 71 between the open position and the closed position In the open position, as shown in FIG. 2, the shutter 71 makes the air duct 10 open, and in the closed position, as shown in FIG. 1, the shutter 71 closes the air duct 10.
  • the shutter 71 extends in the lateral direction of the air duct 10 and can close the air duct 10 when the shutter 71 is closed.
  • the second driving device drives the shutter 71 to close the air duct 10, preventing liquid from flowing out of the housing 1 through the air duct 10; when the spray pipe 41 stops spraying, the second driving device
  • the driving shutter 71 opens the air duct 10.
  • the second driving device is fixedly installed in the housing 1.
  • the interior of the housing 1 further includes: a volute member 13 having a volute tongue 12 therein, and the air outlet of the volute member 13 communicates with the air duct 10.
  • the second driving device includes: a second motor 72, a coupling 73, and a transmission shaft 74, and the output shaft of the second motor 72 is connected to the transmission shaft 74 through the coupling 73,
  • the transmission shaft 74 extends laterally along the shutter 71 and is fixedly connected to the shutter 71.
  • the second motor 72 drives the transmission shaft 74 to rotate, thereby driving the shutter 71 to rotate until the free end of the shutter 71 abuts the volute 12, and the shutter 71 closes the air duct 10 to form a closed cleaning space;
  • the shield 71 is opened, as shown in FIG. 2, the shield 71 rotates in the reverse direction until its free end abuts the volute member 13 to allow the air duct 10 to be opened.
  • the surface of the volute member 13 below the transmission shaft 74 is recessed to form the collection mechanism 11.
  • the collection mechanism 11 is used to collect cleaning media.
  • the collection mechanism 11 can be connected to a drain tube.
  • a placement groove for placing the shield 71 is formed on the wall of the volute member 13 close to the collection mechanism 11.
  • the blocking member 71 When the blocking member 71 is opened, the blocking member 71 abuts against the placement slot to avoid forming resistance to the airflow passing through the air duct 10.
  • the position of the volute 12 is higher than the transmission shaft 74 so that the shutter 71 is inclined when closed. In this way, when the shutter 71 is closed, the sprayed liquid falls on the shutter 71 and can flow toward the transmission shaft 74 and then fall into the collection mechanism 11.
  • the blocking member 71 is provided with a flow guiding mechanism for guiding the spray liquid.
  • the flow guiding mechanism 75 extends longitudinally along the shutter 71.
  • the flow guiding mechanism 75 can guide the liquid falling thereon.
  • the height of the flow guiding mechanism 75 gradually decreases from the free end of the shield 71 to the end of the transmission shaft 74 to improve the flow guiding effect on the liquid.
  • the present disclosure controls the heating of the air conditioner and the spray pipe to spray liquid to the heat exchanger, so that the dust and bacteria deposited on the heat exchanger are removed, compared with the existing cleaning method using steam as the cleaning medium , The impact force when the liquid is sprayed is greater, the cleanliness is enhanced, and there is no need to set up a steam generator, saving energy consumption.

Abstract

一种空调室内机，包括：壳体(1)，壳体(1)下部具有风道(10)，风道(10)内设置用于封闭所述风道(10)的封闭组件，当空调喷淋液体或热蒸汽对换热器(2)进行清洁时，能够防止液体或热蒸汽从风道(10)流出，且能够与风道(10)出风口处的导风板相结合，彻底封闭风道(10)，阻挡外部灰尘的进入。

Description

一种空调室内机
本申请基于申请号为201811174014.X、申请日为2018.10.09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
本申请涉及空调技术领域，例如涉及一种空调室内机。
背景技术
目前，对于一些具有自清洁功能的空调室内机，常采用喷淋液体或喷热蒸汽的方式进行自清洁。
在实现本公开实施例的过程中，发现相关技术中至少存在如下问题：
喷淋液或蒸汽容易从风道流出或飘出，转移至外部环境中。导风板虽然能够关闭出风口，对风道进行封闭，但其封闭效果并不彻底。
发明内容
为了对披露的实施例的一些方面有基本的理解，下面给出了简单的概括。所述概括不是泛泛评述，也不是要确定关键/重要组成元素或描绘这些实施例的保护范围，而是作为后面的详细说明的序言。
本公开实施例提供了一种空调室内机。
在一些实施例中，上述空调室内机包括：壳体，以及形成于所述壳体内的风道，所述风道的出风口处设置导风板，所述风道内设置能够开启和关闭所述风道的封闭组件。
本公开实施例提供的一些技术方案可以实现以下技术效果：
本公开的封闭组件能够在风道内部将风道封闭，当空调喷淋液体或热蒸汽对换热器进行清洁时，能够防止液体或热蒸汽从风道流出，且能够与风道出风口处的导风板相结合，彻底封闭风道，阻挡外部灰尘的进入。
以上的总体描述和下文中的描述仅是示例性和解释性的，不用于限制本申请。
附图说明
一个或多个实施例通过与之对应的附图进行示例性说明，这些示例性说明和附图并不构成对实施例的限定，附图中具有相同参考数字标号的元件示为类似的元件，附图不构成比例限制，并且其中：
图1是本公开实施例提供的一种空调室内机的横向剖面示意图一；
图2是本公开实施例提供的一种空调室内机的横向剖面示意图二；
图3是本公开实施例提供的一种空调室内机的封闭组件的结构示意图；
图4是本公开实施例提供的一种空调室内机的结构示意图；
图5是本公开实施例提供的一种空调室内机的立体结构示意图；
图6是本公开实施例提供的一种空调室内机的喷淋管的喷孔中心线与换热器表面之间的夹角示意图。。
附图标记：
1：壳体；10：风道；11：收集机构；12：蜗舌；13：蜗壳件；2：换热器；3：第一驱动装置；31：齿轮；41：喷淋管；411：喷孔；42：输送管；5：导向机构；6：齿条；71：遮挡件；72：第二电机；73：联轴器；74：传动轴；75：导流机构；81：水泵；82：储水箱。
具体实施方式
以下描述和附图充分地示出本文的具体实施方案，以使本领域的技术人员能够实践它们。一些实施方案的部分和特征可以被包括在或替换其他实施方案的部分和特征。本文的实施方案的范围包括权利要求书的整个范围，以及权利要求书的所有可获得的等同物。本文中，术语“第一”、“第二”等仅被用来将一个元素与另一个元素区分开来，而不要求或者暗示这些元素之间存在任何实际的关系或者顺序。实际上第一元素也能够被称为第二元素，反之亦然。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的结构、装置或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种结构、装置或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的结构、装置或者设备 中还存在另外的相同要素。本文中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。
本文中的术语“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”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文和简化描述，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公开的限制。在本文的描述中，除非另有规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是机械连接或电连接，也可以是两个元件内部的连通，可以是直接相连，也可以通过中间媒介间接相连，对于本领域的普通技术人员而言，可以根据具体情况理解上述术语的具体含义。
本文中，除非另有说明，术语“多个”表示两个或两个以上。
本文中，字符“/”表示前后对象是一种“或”的关系。例如，A/B表示：A或B。
本文中，术语“和/或”是一种描述对象的关联关系，表示可以存在三种关系。例如，A和/或B，表示：A或B，或，A和B这三种关系。
图1是根据一示例性实施例示出的一种空调室内机横向剖面示意图一，图4是根据一示例性实施例示出的一种空调室内机的结构示意图。
如图1所示，本公开提供了一种空调室内机，包括：壳体1，设置在壳体1内的换热器2和控制器(未示出)，壳体1内还包括：将液体喷淋在换热器2上的喷淋管41；控制器用于在需要启动自清洁功能时控制换热器2制热并控制喷淋管41向换热器2喷淋液体。
本公开提供的空调室内机，在需要启动自清洁功能时，利用控制器控制换热器2制热并控制喷淋管41向换热器2喷淋液体。喷淋管41向换热器2喷淋液体的时机在换热器2制热时或制热后。这样，将换热器2的温度结合液体的喷淋力度，可以使污垢更易于被清洗下来。
相比于现有的空调室内机采用热蒸汽喷淋方式，本公开利用空调室内机本身具有的制热功能，结合在换热器上喷淋液体，无需额外增设蒸汽发生装置将液体转换为热蒸汽，便可实现热清洗。
可选地，将换热器加热至60～70℃，然后控制器控制喷淋管喷淋，对污垢的清洗效果较好。较高温度的液体有利于清洁效果，尤其有利于清洁换热器表面的油溶性污垢，且具有杀菌作用。
在本实施例中，喷淋管41中喷出的液体可以是水，也可以是空调清洗液，还可以是水和空调清洗液的混合物。
喷淋管41与液体源头连通以实现液体的供给。液体源头为储液箱。储液箱可以外置于空调室内机，例如放置于阳台或者户外，也可以内置于空调室内机。当选用水作为清洁液体时，喷淋管41可以直接连接至自来水管路。
可选地，如图4所示，喷淋管41通过输送管42连接储水箱82。
可选地，输送管上设置液体增压输送装置，如图4所示，输送管42上设置水泵81，以使液体有足够的动力被输送至喷淋管41。
空调室内机内一般设有用于收集凝露水的接水盘，接水盘位于换热器2的下方，清洗过换热器2的液体可以落入接水盘中，通过接水盘的排水管排出。
在一种可选地实施例中，如图4所示，壳体1内还包括第一驱动装置3，第一驱动装置3驱动喷淋管41横向移动以将液体喷淋到换热器2上，以使喷淋面积全面覆盖换热器2。
在本实施例中，如图5所示，第一驱动装置3包括：固定设置于壳体1内的第一电机，及套置于第一电机驱动轴上的齿轮31；壳体1内还包括：沿换热器2表面横向延伸的齿条6和导向机构5，齿条6能够沿导向机构5滑动并与齿轮31相啮合，喷淋管41固定于齿条6上。第一驱动装置3驱动齿条6沿导向机构5横向移动，从而带动喷淋管41的横向移动。
在一种可选地实施例中，如图1所示，喷淋管41沿换热器2表面纵向延伸，喷淋管41上间隔设置多个喷孔411，喷淋液体由喷孔411喷出，在沿喷淋管41的长度方向上实现喷淋。
图6是根据一示例性实施例示出的一种空调室内机的喷淋管的喷孔中心线与换热器表面之间的夹角，如图6所示，喷孔411的中心线与换热器2表面的夹角为α，其中，α＝30°～60°，换热器2表面与水平方向的夹角为β，α随着β的增大而减小。可选地，当β＝60°时，α＝45°，如此， 使喷淋液体对污垢冲刷得更加彻底。
可选地，喷淋管41与换热器2的距离为L，其中L＝0.5mm～10mm。例如，L＝1、2、3、4或5mm。L随着α的增大而增大。如此，使喷淋液体对换热器2有足够的清洁力度。
在一些可选地实施例中，喷淋管41为多个。多个喷淋管41平行设置，能够形成喷淋区域。
可选地，如图4、5所示，喷淋管41为两个，分别固定于齿条6的两端。当两个喷淋管41同时沿换热器2表面横向移动时，移动路径相对于单个喷淋管41缩短，喷淋效率更高。
可选地，齿条6仅在两端和中央均与导向机构5滑动连接，以节省连接用料。
进一步地，齿条6的长度不超过换热器2横向长度的二分之一。这样，当喷淋管由换热器2的一端移动至另一端时，避免换热器2出现喷淋不到的区域。
可选地，导向机构5位于喷淋管41长度方向的二分之一处，如此可使喷淋管41保持稳定，避免喷淋管41发生摆动，影响喷淋。
在一种可选地实施例中，如图1、2所示，换热器2下方设置用于收集喷淋液体的收集机构11。当喷淋液体清洗完换热器2后，落至收集机构11中被收集起来。可选地，收集机构11具有将喷淋液体排出室内机的排液管。
在一种可选地实施例中，空调室内机内还包括形成于壳体1内的风道10，风道10的出风口处设置导风板，风道10内设置能够开启和关闭风道10的封闭组件；封闭组件关闭风道10时，壳体1内形成密闭的清洗空间。
封闭组件可将风道10封闭以使壳体1内形成密闭的清洗空间，阻止喷淋液体从风道10流出。封闭组件在风道10内部将风道10封闭，配合导风板关闭风道10的出风口，增强风道10的封闭效果。此外，除了阻止喷淋液体流出，还能阻挡外部灰尘的进入。
图3是根据一示例性实施例示出的一种空调室内机的封闭组件的结构示意图。
如图3所示，封闭组件包括：遮挡件71，遮挡件71用于封闭风道10；第二驱动装置，与遮挡件71连接，第二驱动装置驱动遮挡件71在打开位 置和关闭位置之间切换，其中，在打开位置时，如图2所示，遮挡件71让开风道10，在关闭位置时，如图1所示，遮挡件71封闭风道10。
具体地，遮挡件71沿风道10的横向延伸，当遮挡件71关闭时能够封闭风道10。当喷淋管41开始喷淋时，第二驱动装置驱动遮挡件71关闭风道10，阻止液体经由风道10流至壳体1外；当喷淋管41停止喷淋时，第二驱动装置驱动遮挡件71打开风道10。其中，第二驱动装置固定安装于壳体1内。
可选地，如图1、2所示，壳体1内部还包括：蜗壳件13，蜗壳件13内具有蜗舌12，蜗壳件13的出风口处连通风道10。
在一个实施例中，如图3所示，第二驱动装置包括：第二电机72、联轴器73和传动轴74，第二电机72的输出轴通过联轴器73与传动轴74连接，传动轴74沿着遮挡件71横向延伸并与遮挡件71固定连接。如此，如图1、3所示，当遮挡件71关闭时，第二电机72驱动传动轴74转动，进而带动遮挡件71转动直至遮挡件71的自由端抵顶于蜗舌12上，遮挡件71关闭风道10形成密闭的清洗空间；当遮挡件71打开时，如图2所示，遮挡件71反向转动直至其自由端抵靠在蜗壳件13上，以让开风道10。
可选地，传动轴74下方的蜗壳件13的表面凹陷形成收集机构11。收集机构11用于收集清洁介质。收集机构11可以连接排液管。
可选地，蜗壳件13靠近收集机构11的壁上形成用于放置遮挡件71的放置槽。当遮挡件71打开时，遮挡件71抵靠在放置槽内，避免对经过风道10的气流形成阻力。
可选地，蜗舌12的位置高于传动轴74以使遮挡件71关闭时为倾斜状。如此，当遮挡件71关闭时，喷淋后的液体落至遮挡件71上，可以向传动轴74一侧流动，进而落至收集机构11中。
在一种可选地实施例中，遮挡件71上设有将喷淋液体导流的导流机构。
可选地，如图3所示，导流机构75沿遮挡件71纵向延伸。当遮挡件71封闭风道10时，导流机构75能够对落于其上的液体进行导流。具体地，导流机构75的高度由遮挡件71的自由端向传动轴74一端逐渐减小，以提升对液体的导流效果。
本公开通过控制空调制热并控制喷淋管向换热器喷淋液体，使沉积在 换热器上的灰尘、细菌等污物被清除，相比现有的以蒸汽为清洁介质的清洁方式，液体喷出时的冲击力度更大，清洁性增强，且无需设置蒸汽发生器，节省能耗。
本公开并不局限于上面已经描述并在附图中示出的结构，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 (9)

  1. 一种空调室内机，包括：壳体，以及形成于所述壳体内的风道，所述风道的出风口处设置导风板，其特征在于，所述风道内设置能够开启和关闭所述风道的封闭组件。
  2. 根据权利要求1所述的空调室内机，其特征在于，所述封闭组件包括：
    遮挡件，所述遮挡件用于封闭所述风道；
    第二驱动装置，与所述遮挡件连接，所述第二驱动装置驱动所述遮挡件在打开位置和关闭位置之间切换，其中，在所述打开位置时，所述遮挡件让开所述风道，在所述关闭位置时，所述遮挡件关闭所述风道。
  3. 根据权利要求2所述的空调室内机，其特征在于，所述第二驱动装置包括：第二电机、联轴器和传动轴，所述第二电机的输出轴通过联轴器与传动轴连接，所述传动轴沿着所述遮挡件横向延伸并与遮挡件固定连接。
  4. 根据权利要求2所述的空调室内机，其特征在于，所述遮挡件上设置用于将液体导流的导流机构。
  5. 根据权利要求4所述的空调室内机，其特征在于，所述导流机构沿所述遮挡件纵向延伸。
  6. 根据权利要求1所述的空调室内机，其特征在于，所述壳体内还包括：换热器和控制器，以及将液体喷淋在所述换热器上的喷淋管；所述控制器用于在需要启动自清洁功能时控制所述空调制热并控制所述喷淋管向所述换热器喷淋液体。
  7. 根据权利要求6所述的空调室内机，其特征在于，还包括第一驱动装置，所述第一驱动装置驱动喷淋管移动以将液体喷淋到换热器上。
  8. 根据权利要求7所述的空调室内机，其特征在于，所述液体喷淋机构沿所述换热器表面横向移动。
  9. 根据权利要求6所述的空调室内机，其特征在于，所述换热器下方设置用于收集喷淋液体的收集机构。
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