WO2016180250A1 - 空调器 - Google Patents

空调器 Download PDF

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Publication number
WO2016180250A1
WO2016180250A1 PCT/CN2016/080730 CN2016080730W WO2016180250A1 WO 2016180250 A1 WO2016180250 A1 WO 2016180250A1 CN 2016080730 W CN2016080730 W CN 2016080730W WO 2016180250 A1 WO2016180250 A1 WO 2016180250A1
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WO
WIPO (PCT)
Prior art keywords
air
volute tongue
air outlet
duct
air conditioner
Prior art date
Application number
PCT/CN2016/080730
Other languages
English (en)
French (fr)
Inventor
徐远炬
杨检群
玉鼎
安智
李松
熊华祥
廖岸辉
刘宝宝
谭宋平
吴秀滢
梁勇超
陈鹏宇
游俊雄
Original Assignee
珠海格力电器股份有限公司
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Filing date
Publication date
Application filed by 珠海格力电器股份有限公司 filed Critical 珠海格力电器股份有限公司
Publication of WO2016180250A1 publication Critical patent/WO2016180250A1/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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0022—Centrifugal or radial fans
    • 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
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • 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
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
    • 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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • 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
    • F24F2013/247—Active noise-suppression

Definitions

  • the present invention relates to the field of heat exchange equipment, and in particular to an air conditioner.
  • the volute tongue acts as part of the duct profile and has the effect of guiding the wind direction.
  • the height of the volute tongue is the same as the height of the air duct, and there is no pressure relief passage. Therefore, the gas pressure at the volute tongue is large at the air outlet (especially the multi-air air conditioner which can separately control the air outlet of the air outlet). The problem of serious noise.
  • the main object of the present invention is to provide an air conditioner to solve the problems of high gas pressure and serious noise at the volute tongue in the prior art.
  • the present invention provides an air conditioner comprising: a bottom case; a duct cover connected to the bottom case, a duct formed between the bottom case and the duct cover; and a centrifugal impeller, the centrifugal impeller pivotable
  • the ground is disposed on the bottom shell and located in the air duct; the volute tongue and the volute tongue are located at the air outlet of the air duct, and the volute tongue and the centrifugal impeller form a gap between the inner side area of the air duct and the air outlet area, and the volute tongue
  • a pressure relief passage for connecting the inner side portion and the air outlet portion of the air duct is provided, and the pressure relief passage is located outside the radial direction of the volute tongue gap away from the centrifugal impeller.
  • the pressure relief passage is a communication hole and/or a communication groove formed on the volute tongue.
  • the thickness of the volute tongue is smaller than the thickness of the air duct.
  • a pressure relief passage is formed between the volute tongue and the duct cover and/or between the bottom casing.
  • the surface of the volute tongue facing the air passage side is a part of the air passage wall surface of the air duct.
  • the thickness of the volute tongue is equal to the thickness of the centrifugal impeller.
  • volute tongue has a first surface adjacent to one side of the duct cover, and the first surface of the volute tongue is flush with the surface of the centrifugal impeller adjacent to the side of the duct cover.
  • volute tongue has a second surface adjacent to one side of the bottom case, and the second surface of the volute tongue is flush with the surface of the centrifugal impeller near the side of the bottom case.
  • the air duct has two air outlets with different air outlet directions
  • the air conditioner further includes two air outlet baffles that are pivotally disposed, and the two air outlet baffles are respectively disposed corresponding to the two air outlets, one for each
  • the air outlet baffles each have a first position to avoid the air outlet and a second position to close the corresponding air outlet, and the volute tongue is located inside the air outlet baffle.
  • the air outlet baffle when the air outlet baffle is in the first position, the air outlet baffle overlaps the surface of the bottom case and/or the air duct cover to open the air outlet.
  • the bottom case is connected with the air duct cover and forms a air duct.
  • the centrifugal impeller is pivotally disposed on the bottom shell and located in the air duct, the volute tongue is located at the air outlet of the air duct, and the volute tongue and The inner side of the air duct and the volute tongue gap of the air outlet area are formed between the centrifugal impellers, and the pressure releasing passage for connecting the inner side area and the air outlet area of the air duct is arranged at the volute tongue, and the pressure releasing passage is located in the gap of the volute tongue Keep away from the radial outer side of the centrifugal impeller.
  • the pressure relief passage is provided at the volute tongue, when the wind flows between the inner region and the air outlet region, a part of the gas pressure is released and discharged through the pressure relief passage, thereby reducing the gas pressure at the volute tongue, and further
  • the noise at the air outlet, especially the volute tongue, is effectively reduced, and the vibration of the air conditioner is reduced, the operational reliability of the air conditioner is improved, and the user's use comfort is improved.
  • FIG. 1 is a schematic view showing the connection relationship of a bottom case, a centrifugal impeller, a volute tongue, and an air outlet baffle in the present invention
  • Fig. 2 is a view showing the connection relationship between the bottom case and the duct cover in the present invention.
  • the term “inner or outer” as used herein refers to the inside and outside of the outline of each component, and the above-mentioned orientation words are not intended to limit the present invention.
  • the present invention provides an air conditioner.
  • the air conditioner includes a bottom case 10, a duct cover 20 connected to the bottom case 10, a centrifugal impeller 40 and a volute tongue 50, and a duct is formed between the bottom case 10 and the duct cover 20. 30.
  • the centrifugal impeller 40 is pivotally disposed on the bottom casing 10 and located in the air duct 30.
  • the volute tongue 50 is located at the air outlet of the air duct 30, and the connecting air duct 30 is formed between the volute tongue 50 and the centrifugal impeller 40.
  • volute gap 33 of the inner side portion 31 and the air outlet portion 32 and an inner side portion for communicating the air passage 30 at the volute tongue 50 31 and the pressure relief passage 34 of the vent area 32, and the pressure relief passage 34 is located radially outward of the volute gap 33 away from the centrifugal impeller 40.
  • the pressure relief passage 34 is provided at the volute tongue 50, when the wind flows between the inner side area 31 and the air outlet area 32, a part of the gas pressure is released and discharged through the pressure relief passage 34, thereby reducing the volute tongue 50.
  • the gas pressure at the place effectively reduces the noise at the air outlet, especially the volute tongue 50, and reduces the vibration of the air conditioner, improves the operational reliability of the air conditioner, and improves the user's comfort.
  • the surface of the volute tongue 50 facing the air passage 30 side is a part of the air passage wall surface of the air duct 30. At this time, the volute tongue 50 is disposed close to the air passage wall surface of the air passage 30 and serves as a part of the air passage wall surface.
  • the thickness of the volute tongue 50 is less than the thickness of the air duct 30. Since the thickness of the volute tongue 50 is smaller than the thickness of the air duct 30, the pressure relief passage 34 is formed at the volute tongue 50. When the wind passes through the volute tongue 50, part of the air outlet is diverted away through the pressure relief passage 34, thereby reducing The gas pressure at the volute gap 33, that is, the air pressure at the volute tongue 50, reduces the operating noise and vibration of the air conditioner, and improves the operational reliability of the air conditioner.
  • a pressure relief passage 34 is formed between the volute 50 and the duct cover 20 and/or between the bottom housing 10.
  • a pressure relief passage 34 is formed between the volute tongue 50 and the bottom casing 10; second, the volute tongue 50 and the wind A pressure relief passage 34 is formed between the track cover plates 20; thirdly, a pressure relief passage is formed simultaneously between the volute tongue 50 and the bottom casing 10 and with the duct cover 20.
  • the volute tongue 50 is relatively stable in the air duct 30, and the pressure relief is more reliable.
  • the thickness of the volute tongue 50 is equal to the thickness of the centrifugal impeller 40.
  • the centrifugal impeller 40 is mounted at the same height as the volute tongue 50 after installation, so that the pressure relief effect is best.
  • the pressure relief effect is weakened, so that the noise situation cannot be alleviated; when the centrifugal impeller 40 is installed, the height is higher than the volute tongue 50.
  • a large amount of air is released through the pressure relief passage 34, thereby causing problems such as a reduction in effective air volume and turbulence of the gas.
  • the volute tongue 50 has a first surface adjacent one side of the duct cover 20, and the first surface of the volute tongue 50 is flush with the surface of the centrifugal impeller 40 on the side close to the duct cover 20.
  • volute tongue 50 has a second surface near one side of the bottom case 10, and the second surface of the volute tongue 50 is flush with the surface of the centrifugal impeller 40 on the side close to the bottom case 10.
  • the pressure relief passage 34 is a communication hole and/or a communication groove that is formed in the volute tongue 50. Since the volley tongue 50 has a communication hole and/or a communication groove, the air outlet is depressurized under the conduction of the communication hole and/or the communication groove, thereby effectively reducing the noise at the volute tongue 50.
  • the air duct 30 of the present invention has two air outlets with different air outlet directions
  • the air conditioner further includes two air outlet baffles 60 pivotally disposed, two air outlet baffles 60 and two The air outlets are disposed correspondingly one by one, and each of the air outlet baffles 60 has a first position for avoiding the air outlet and a second position for closing the corresponding air outlet, and the volute tongue 50 is located inside the air outlet baffle 60.
  • the air passage 30 of the air conditioner for outputting cold air or hot air to the outside has two air outlet directions different.
  • Each air outlet is provided with an air outlet baffle 60 for controlling the air outlet switch, and the user can adjust which air outlet is discharged according to actual needs, thereby improving the amplitude of the air outlet direction adjustment, thereby improving The user's comfort.
  • the air outlet baffle 60 overlaps the surface of the bottom case 10 and/or the air duct cover 20 to open the air outlet. At this time, the wind can be smoothly discharged from the air outlet.
  • the air outlet baffle 60 blocks the air outlet.
  • the wind blows toward the air outlet baffle 60 and then folds back through the volute tongue 50, and then enters the air duct 30 and flows to the opposite side air outlet (refer to FIG. 1).
  • the static pressure at the volute tongue 50 on the blocked side in the air duct 30 is the highest, which directly affects the total noise value of the air conditioner, thereby reducing the noise at the place, and the noise reduction effect of the air conditioner.
  • the first side of the air outlet baffle 60 is pivotally disposed on the bottom case 10, and the second side of the air outlet baffle 60 is a free side (please refer to FIG. 1).
  • the surface of the air duct cover 20 facing the side of the air duct 30 has a sealing structure, and the second side of the air outlet flap 60 is sealingly fitted with the sealing structure. Since the sealing structure is provided, the windproof reliability of the air outlet baffle 60 is effectively improved, and the reliability of the air outlet mode adjustment of the air conditioner is ensured.
  • the sealing structure is a stop step surface disposed on the air duct cover, and the second side of the air outlet baffle 60 is engaged with the stop step surface. In the second position, the second end of the air outlet baffle 60 abuts the stop step surface, which increases the contact area, which is beneficial to improve the sealing effect.
  • stop step faces away from the corresponding air outlet.
  • the pressure in the air duct 30 causes the second end of the air outlet baffle 60 to press the stop step surface, which is advantageous for further improving the sealing effect.
  • a gasket is disposed between the air outlet baffle 60 and the stop step surface. Further, the sealing effect is improved to prevent air leakage.
  • the gasket can be made of a flexible material such as sponge or rubber.
  • the surface of the bottom case 10 facing the air passage 30 side has a housing recess for accommodating the air baffle 60.
  • One of the two air outlets of the duct 30 in the present invention is formed in the upper portion of the air conditioner, and the other is formed in the lower portion of the air conditioner.
  • the cooling mode if the user does not like the cold air blowing down, you can use the upward air outlet; in the heating mode, if the user likes the hot air, you can use the downward air outlet.
  • Customers can adjust which outlet is out of the wind according to their needs.

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

Abstract

一种空调器，包括：底壳（10）；与底壳（10）连接的风道盖板（20），底壳（10）与风道盖板（20）之间形成风道（30）；离心叶轮（40），离心叶轮（40）可枢转地设置在底壳（10）上并位于风道（30）内；蜗舌（50），蜗舌（50）位于风道（30）的出风口处，且蜗舌（50）与离心叶轮（40）之间形成连接风道（30）的内侧区（31）和出风口区（32）的蜗舌间隙（33），蜗舌（50）处设置有用于连通风道（30）的内侧区（31）和出风口区（32）的泄压通道（34），且泄压通道（34）位于蜗舌间隙（33）的远离离心叶轮（40）的径向的外侧。由于在蜗舌（50）处设置有泄压通道（34），因而风在内侧区（31）与出风口区（32）之间流动时，会有一部分气体压力经由泄压通道（34）导流泄压，从而降低了蜗舌（50）处的气体压力，进而有效降低了出风口处、特别是蜗舌（50）处的噪音，同时减小了空调器的振动，提高了空调器的运行可靠性。

Description

空调器 技术领域
本发明涉及换热设备技术领域，具体而言，涉及一种空调器。
背景技术
蜗舌作为风道型线的一部分，具有导引风向的作用。
现有技术中，蜗舌的高度与风道的高度相同，且不具有泄压通道，因而在出风口(特别是可以单独控制出风口出风的多风口空调器)存在蜗舌处气体压力大、噪音严重的问题。
发明内容
本发明的主要目的在于提供一种空调器，以解决现有技术中蜗舌处气体压力大、噪音严重的问题。
为了实现上述目的，本发明提供了一种空调器，包括：底壳；与底壳连接的风道盖板，底壳与风道盖板之间形成风道；离心叶轮，离心叶轮可枢转地设置在底壳上并位于风道内；蜗舌，蜗舌位于风道的出风口处，且蜗舌与离心叶轮之间形成连接风道的内侧区和出风口区的蜗舌间隙，蜗舌处设置有用于连通风道的内侧区和出风口区的泄压通道，且泄压通道位于蜗舌间隙的远离离心叶轮的径向的外侧。
进一步地，泄压通道为开设在蜗舌上的连通孔和/或连通槽。
进一步地，蜗舌的厚度小于风道的厚度。
进一步地，蜗舌与风道盖板之间和/或与底壳之间形成泄压通道。
进一步地，蜗舌的朝向风道一侧的表面为风道的风道壁面的一部分。
进一步地，蜗舌的厚度与离心叶轮的厚度相等。
进一步地，蜗舌具有靠近风道盖板一侧的第一表面，且蜗舌的第一表面与离心叶轮的靠近风道盖板一侧的表面平齐。
进一步地，蜗舌具有靠近底壳一侧的第二表面，且蜗舌的第二表面与离心叶轮的靠近底壳一侧的表面平齐。
进一步地，风道具有出风方向不同的两个出风口，空调器还包括枢转设置的两个出风挡板，两个出风挡板与两个出风口一一对应地设置，每个出风挡板均具有避让出风口的第一位置、以及封闭相应的出风口的第二位置，且蜗舌位于出风挡板的内侧。
进一步地，当出风挡板处于第一位置时，出风挡板与底壳和/或风道盖板的表面叠置以打开出风口。
应用本发明的技术方案，底壳与风道盖板连接并形成风道，离心叶轮可枢转地设置在底壳上并位于风道内，蜗舌位于风道的出风口处，且蜗舌与离心叶轮之间形成连接风道的内侧区和出风口区的蜗舌间隙，蜗舌处设置有用于连通风道的内侧区和出风口区的泄压通道，且泄压通道位于蜗舌间隙的远离离心叶轮的径向的外侧。由于在蜗舌处设置有泄压通道，因而风在内侧区与出风口区之间流动时，会有一部分气体压力经由泄压通道导流泄压，从而降低了蜗舌处的气体压力，进而有效降低了出风口处、特别是蜗舌处的噪音，同时减小了空调器的振动，提高了空调器的运行可靠性，并提高了用户的使用舒适性。
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发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1示出了本发明中的底壳、离心叶轮、蜗舌、出风挡板的连接关系示意图；以及
图2示出了本发明中的底壳与风道盖板的连接关系示意图。
其中，上述附图包括以下附图标记：
10、底壳；20、风道盖板；30、风道；31、内侧区；32、出风口区；33、蜗舌间隙；34、泄压通道；40、离心叶轮；50、蜗舌；60、出风挡板。
具体实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本发明。
应该指出，以下详细说明都是例示性的，旨在对本申请提供进一步的说明。除非另有指明，本文使用的所有技术和科学术语具有与本申请所属技术领域的普通技术人员通常理解的相同含义。
在本发明中，在未作相反说明的情况下，使用的方位词如“内、外”是指相对于各部件本身的轮廓的内、外，但上述方位词并不用于限制本发明。
为了解决现有技术中蜗舌处气体压力大、噪音严重的问题，本发明提供了一种空调器。
如图1和图2所示，空调器包括底壳10、与底壳10连接的风道盖板20、离心叶轮40和蜗舌50，底壳10与风道盖板20之间形成风道30，离心叶轮40可枢转地设置在底壳10上并位于风道30内，蜗舌50位于风道30的出风口处，且蜗舌50与离心叶轮40之间形成连接风道30的内侧区31和出风口区32的蜗舌间隙33，蜗舌50处设置有用于连通风道30的内侧区 31和出风口区32的泄压通道34，且泄压通道34位于蜗舌间隙33的远离离心叶轮40的径向的外侧。
由于在蜗舌50处设置有泄压通道34，因而风在内侧区31与出风口区32之间流动时，会有一部分气体压力经由泄压通道34导流泄压，从而降低了蜗舌50处的气体压力，进而有效降低了出风口处、特别是蜗舌50处的噪音，同时减小了空调器的振动，提高了空调器的运行可靠性，并提高了用户的使用舒适性。
需要说明的是，蜗舌50的朝向风道30一侧的表面为风道30的风道壁面的一部分。此时，蜗舌50紧靠着风道30的风道壁面设置并作为风道壁面的一部分。
优选地，蜗舌50的厚度小于风道30的厚度。由于蜗舌50的厚度小于风道30的厚度，因而使得蜗舌50处形成泄压通道34，当出风经过该蜗舌50时，部分出风经由泄压通道34导流走，从而减小了蜗舌间隙33处的气体压力，也就是降低了蜗舌50处的气压，进而降低了空调器的运行噪音和振动，提高了空调器的运行可靠性。
具体而言，蜗舌50与风道盖板20之间和/或与底壳10之间形成泄压通道34。当蜗舌50的厚度小于风道30厚度时，具有三种形成泄压通道34的方案：一是、蜗舌50与底壳10之间形成泄压通道34；二是、蜗舌50与风道盖板20之间形成泄压通道34；三是、蜗舌50与底壳10且与风道盖板20之间同时形成泄压通道。其中，前两种方案中，蜗舌50在风道30内安装地较为稳固，泄压更为可靠。
经过发明人的研究表明，蜗舌50的厚度与离心叶轮40的厚度相等。此时，安装离心叶轮40时，最好使离心叶轮40安装完以后与蜗舌50处于同一高度上，这样可以使得泄压效果最好。以方案二为例，当离心叶轮40安装完后其高度低于蜗舌50时，会导致泄压效果减弱，使得噪音情况无法得到缓解；当离心叶轮40安装完后其高度高于蜗舌50时，又会导致大量的出风经由泄压通道34泄压，从而造成有效出风量减少以及气体紊流等问题。
由于上述有不少于三种方案，因而在安装离心叶轮40时，还需要注意应满足下述条件。蜗舌50具有靠近风道盖板20一侧的第一表面，且蜗舌50的第一表面与离心叶轮40的靠近风道盖板20一侧的表面平齐。
同样地，还需注意，蜗舌50具有靠近底壳10一侧的第二表面，且蜗舌50的第二表面与离心叶轮40的靠近底壳10一侧的表面平齐。
在一个未图示的优选实施方式中，泄压通道34为开设在蜗舌50上的连通孔和/或连通槽。由于蜗舌50上具有连通孔和/或连通槽，因而出风在该连通孔和/或连通槽的导流作用下会进行泄压，从而有效降低蜗舌50处的噪音。
如图1所示，本发明中的风道30具有出风方向不同的两个出风口，空调器还包括枢转设置的两个出风挡板60，两个出风挡板60与两个出风口一一对应地设置，每个出风挡板60均具有避让出风口的第一位置、以及封闭相应的出风口的第二位置，且蜗舌50位于出风挡板60的内侧。本实施例中，空调器的用于向外界输出冷风或热风的风道30具有出风方向不同的两 个出风口，每个出风口处均设置有用于控制该出风口开关的出风挡板60，用户可根据实际需要调整由哪个出风口出风，提高了对出风方向调节的幅度，从而提高了用户的舒适度。
优选地，当出风挡板60处于第一位置时，出风挡板60与底壳10和/或风道盖板20的表面叠置以打开出风口。此时，出风可顺利由出风口出风。
优选地，当出风挡板60处于第二位置时，出风挡板60遮挡出风口。当空调器工作时，风吹向出风挡板60后折返经过蜗舌50处，然后进入风道30内并流向对侧出风口(请参考图1)。通过模拟分析可知，风道30内被封堵侧的蜗舌50处的静压最高，直接影响空调器的噪音总值，因而降低该处的噪音，会对空调器起到降噪的效果。
具体而言，出风挡板60的第一侧可枢转地设置底壳10上，出风挡板60的第二侧为自由侧(请参考图1)。
优选地，风道盖板20的朝向风道30一侧的表面具有密封结构，出风挡板60的第二侧与密封结构密闭配合。由于设置有密封结构，因而有效提高出风挡板60的挡风可靠性，保证了空调器多出风模式调节的可靠性。
进一步地，密封结构为设置在风道盖板上的止挡台阶面，出风挡板60的第二侧与止挡台阶面配合。在第二位置，出风挡板60的第二端与止挡台阶面抵接，增大了接触面积，有利于提高密封效果。
进一步地，止挡台阶面背对相应的出风口。风道30内的压力促使出风挡板60的第二端挤压止挡台阶面，有利于进一步地提高密封效果。
进一步地，出风挡板60与止挡台阶面之间设置有密封垫。进一步地，提高了密封效果，防止出现漏风现象。密封垫可以选用海绵、橡胶等具有弹性的材质。
为了提高出风挡板60的收纳可靠性，底壳10的朝向风道30一侧的表面具有用于收纳出风挡板60的收纳凹部。
本发明中的风道30的两个出风口中的一个形成在空调器的上部，另一个形成在空调器的下部。在制冷模式下，如果用户不喜欢冷风向下直吹，可以选用向上的出风口；在制热模式下，用户如喜欢热风直吹，可选用向下的出风口。客户可根据自己需要，调整由哪个出风口出风。
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、工作、器件、组件和/或它们的组合。
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。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种空调器，其特征在于，包括：
    底壳(10)；
    与所述底壳(10)连接的风道盖板(20)，所述底壳(10)与所述风道盖板(20)之间形成风道(30)；
    离心叶轮(40)，所述离心叶轮(40)可枢转地设置在所述底壳(10)上并位于所述风道(30)内；
    蜗舌(50)，所述蜗舌(50)位于所述风道(30)的出风口处，且所述蜗舌(50)与所述离心叶轮(40)之间形成连接所述风道(30)的内侧区(31)和出风口区(32)的蜗舌间隙(33)，所述蜗舌(50)处设置有用于连通所述风道(30)的所述内侧区(31)和所述出风口区(32)的泄压通道(34)，且所述泄压通道(34)位于所述蜗舌间隙(33)的远离所述离心叶轮(40)的径向的外侧。
  2. 根据权利要求1所述空调器，其特征在于，所述泄压通道(34)为开设在所述蜗舌(50)上的连通孔和/或连通槽。
  3. 根据权利要求1所述空调器，其特征在于，所述蜗舌(50)的厚度小于所述风道(30)的厚度。
  4. 根据权利要求3所述空调器，其特征在于，所述蜗舌(50)与所述风道盖板(20)之间和/或与所述底壳(10)之间形成所述泄压通道(34)。
  5. 根据权利要求1所述空调器，其特征在于，所述蜗舌(50)的朝向所述风道(30)一侧的表面为所述风道(30)的风道壁面的一部分。
  6. 根据权利要求4所述空调器，其特征在于，所述蜗舌(50)的厚度与所述离心叶轮(40)的厚度相等。
  7. 根据权利要求4所述空调器，其特征在于，所述蜗舌(50)具有靠近所述风道盖板(20)一侧的第一表面，且所述蜗舌(50)的第一表面与所述离心叶轮(40)的靠近所述风道盖板(20)一侧的表面平齐。
  8. 根据权利要求4所述空调器，其特征在于，所述蜗舌(50)具有靠近所述底壳(10)一侧的第二表面，且所述蜗舌(50)的第二表面与所述离心叶轮(40)的靠近所述底壳(10)一侧的表面平齐。
  9. 根据权利要求1所述空调器，其特征在于，所述风道(30)具有出风方向不同的两个所述出风口，所述空调器还包括枢转设置的两个出风挡板(60)，两个所述出风挡板(60)与两个所述出风口一一对应地设置，每个所述出风挡板(60)均具有避让所述出风口的第一位置、以及封闭相应的所述出风口的第二位置，且所述蜗舌(50)位于所述出风挡板(60)的内侧。
  10. 根据权利要求9所述空调器，其特征在于，当所述出风挡板(60)处于所述第一位置时，所述出风挡板(60)与所述底壳(10)和/或所述风道盖板(20)的表面叠置以打开所述出风口。
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