WO2019223453A1 - 用于空调室内机的补风装置和空调室内机 - Google Patents

用于空调室内机的补风装置和空调室内机 Download PDF

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Publication number
WO2019223453A1
WO2019223453A1 PCT/CN2019/082750 CN2019082750W WO2019223453A1 WO 2019223453 A1 WO2019223453 A1 WO 2019223453A1 CN 2019082750 W CN2019082750 W CN 2019082750W WO 2019223453 A1 WO2019223453 A1 WO 2019223453A1
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WIPO (PCT)
Prior art keywords
air
indoor unit
casing
supply device
air conditioner
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PCT/CN2019/082750
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English (en)
French (fr)
Inventor
刘光朋
李英舒
胡兰岐
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青岛海尔空调器有限总公司
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Publication of WO2019223453A1 publication Critical patent/WO2019223453A1/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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • 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
    • F24F13/082—Grilles, registers or 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
    • F24F13/24—Means for preventing or suppressing noise

Definitions

  • the present invention relates to the technical field of air conditioning, and in particular, to an air supply device and an indoor unit for an air conditioner.
  • the existing air-conditioning usually has a rapid cooling / heating function.
  • the compressor of the air conditioner works at a higher frequency to quickly increase the cooling capacity / heating capacity.
  • the indoor unit of the air conditioner operates at high speed and high air volume to return the cold / hot air after heat exchange to the room, thereby achieving indoor Fast temperature adjustment.
  • the rapid cooling / heating function of the air conditioner mentioned above solves the user's rapid cooling / heating demand to a certain extent, there are some problems in this air conditioner.
  • the cold air / hot air is directly returned to the room by using a strong airflow method, so that the air from the air conditioner has a problem of overcooling / overheating.
  • the overcooling / overheating will cause discomfort to the human body, and then cause air conditioning diseases.
  • air conditioning performance and wind noise are a pair of non-adjustable and contradictory.
  • the air conditioner increases the volume of air supply and the noise also increases.
  • the performance of the air conditioner (that is, the amount of air supplied) will be limited to a certain extent.
  • These problems are particularly obvious in some special application scenarios such as libraries, wards, and rooms for insomniacs.
  • the conventional air conditioners have problems such as excessive cooling / overheating and high noise when the amount of air supplied is large.
  • the present invention provides an air supplement device for an air conditioner indoor unit.
  • the air supply device includes an air induction module and a jet module.
  • the air induction module includes a first casing.
  • the first casing is provided with an air inlet pipe communicating with the outdoor.
  • the first casing is provided with an air induction tube.
  • the air induction module is arranged to be able to introduce outdoor fresh air into the first casing through the air inlet pipe under the drive of the air induction fan, and discharge the air to the first housing through the air outlet of the air induction fan; Jet module; the jet module includes a second housing, and an air inlet and an air outlet are provided on the second housing, the air inlet is in communication with the air outlet of the induced draft fan, and the air inlet is in contact with the air outlet A jet channel is formed between the air outlets, and the jet module is configured to allow air flow from the air induction module to flow through the jet channel, and then be ejected through the air outlet and discharged from the air outlet of the air-conditioning indoor unit. The wind is mixed.
  • a draft plate is provided in the second casing, and the draft plate can introduce nearby air into the jet channel when the draft fan is in operation.
  • a cross section of the air guide plate is arc-shaped, and the arc shape can draw nearby air in a direction of the air outlet.
  • the air-supplying device further includes a connecting pipe, a through hole is provided in the first housing, and a first end of the connecting pipe passes through the The through hole is connected to the air outlet of the induced draft fan, and the second end of the connection pipe is connected to the air inlet.
  • the connecting pipe has a curved surface segment; and / or the second end of the connecting pipe has a bell mouth structure.
  • the air outlet is provided with an air outlet grille, and the air outlet grill can restrict the air outlet direction of the air outlet from being horizontal or obliquely upward. And there is a certain angle with the horizontal direction.
  • one end of the air inlet pipe connected to the first casing has a bell mouth structure.
  • the induced fan is a centrifugal fan.
  • the present invention also provides an air-conditioning indoor unit, which includes a main body, and the air-conditioning indoor unit further includes an air supply device for an air-conditioning indoor unit according to any one of the above-mentioned preferred technical solutions, the air induction module and the air-conditioning unit. Jet modules are respectively connected to the air-conditioning indoor units.
  • the air-conditioning indoor unit is a wall-mounted indoor unit
  • the air induction module is disposed on the back of the wall-mounted indoor unit
  • the jet module is disposed on the wall-mounted indoor unit. Underside.
  • the air supply device for an air-conditioning indoor unit includes an air induction module and a jet module, and the air induction module includes a first casing, and the first casing is provided on the first casing.
  • An induced draft fan is arranged in the first casing, and the induced draft module is arranged to be able to introduce outdoor fresh air into the first casing through the intake duct and driven by the exhaust fan.
  • the air outlet is discharged to the jet module; the jet module includes a second housing, and the second housing is provided with an air inlet and an air outlet.
  • the air inlet is in communication with the air outlet of the induced draft fan, and a jet channel is formed between the air inlet and the air outlet.
  • the jet module is configured to allow the air flow from the air induction module to flow through the jet channel, and then be ejected through the air outlet and mixed with the air discharged from the air outlet of the air-conditioning indoor unit.
  • the present invention can significantly improve the phenomenon that the air conditioner indoor unit supplies air undercooling / overheating at a large air volume, and greatly reduce the noise of the air conditioner indoor unit during high air volume operation. Specifically, after repeated experiments, observations, analysis, and comparisons by the inventors, it was found that when the fan in the air-conditioning indoor unit and the induced fan in the air induction module are started at the same time, the air-conditioning indoor unit can pass the induced fan and the fan in the air-conditioning indoor unit.
  • the air supply is shared at the low and medium speeds, so that under the premise of providing the same air supply, the noise generated by the fan in the indoor unit of the air conditioner at high speed is greatly reduced, and the operation performance of the air conditioner is unchanged or even improved.
  • the fresh air air flow emitted by the jet module is mixed with the air discharged from the air supply port, which makes the air conditioner softer, avoiding many problems such as air conditioner caused by the supercooled and overheated air supplied by the air conditioner indoor unit.
  • the air conditioner indoor unit can also introduce outdoor fresh air during operation, ensure the oxygen content of the indoor air, and solve many problems such as poor indoor air turbidity.
  • the present invention solves the problems of overcooling / overheating and high noise of the air conditioner in the prior art when the air conditioner is operating at a large air volume, which obviously improves the user experience, and the structure of the present invention is simple, the effect is significant, and the method is suitable. Mass promotion and use.
  • FIG. 1 is a schematic structural diagram of a wall-mounted air conditioner indoor unit according to a first embodiment of the present invention
  • FIG. 2 is an exploded schematic view of a wall-mounted air conditioner indoor unit according to a first embodiment of the present invention
  • FIG. 3 is a cross-sectional view of FIG. 1 at A-A;
  • FIG. 4 is a working principle diagram of a wall-mounted air conditioner indoor unit according to a first embodiment of the present invention, which shows a suction process of a draft fan;
  • FIG. 5 is a working principle diagram of the wall-mounted air-conditioning indoor unit in the first embodiment of the present invention, which shows the air mixing process of the wall-mounted air-conditioning indoor unit;
  • FIG. 6 is an exploded view of a wall-mounted air conditioner indoor unit in a second embodiment of the present invention.
  • FIG. 7 is a working principle diagram of a wall-mounted air conditioner indoor unit according to a second embodiment of the present invention, which shows the process of suction of a draft fan.
  • Air supply device 21. Induction module; 211; First housing; 211a; Front cover 211b, rear cover; 212, air inlet pipe; 213, induced draft fan; 2130, air outlet; 2131, volute; 2132, motor; 2133, fan; 214, through hole; 23, jet module; 230, jet Passageway; 231, second casing; 232, air inlet; 233, air outlet; 2331, outlet grille; 234, drainage plate; 25, connecting pipe.
  • Induction module 211; First housing; 211a; Front cover 211b, rear cover; 212, air inlet pipe; 213, induced draft fan; 2130, air outlet; 2131, volute; 2132, motor; 2133, fan; 214, through hole; 23, jet module; 230, jet Passageway; 231, second casing; 232, air inlet; 233, air outlet; 2331, outlet grille; 234, drainage plate; 25, connecting pipe.
  • the air inlet pipe in the drawing is disposed at the middle of the top surface of the first casing, this positional relationship is not static, and those skilled in the art can adjust it according to needs to adapt to specific applications.
  • the air inlet pipe may also be disposed on a side or bottom surface of the first casing.
  • the terms “installation”, “connected”, and “connected” should be understood in a broad sense. For example, they may be fixed connections or It is a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components.
  • installation should be understood in a broad sense. For example, they may be fixed connections or It is a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components.
  • the specific meanings of the above terms in the present invention can be understood according to specific situations.
  • the present invention proposes a wall-mounted air conditioner indoor unit, in order to reduce the noise of the air conditioner indoor unit while increasing the amount of induced air and breaking
  • the impasse between air volume and noise reduction of traditional air-conditioning indoor units can improve the user experience.
  • FIGS. 1 to 5 are schematic structural diagram of a wall-mounted air-conditioning indoor unit according to the first embodiment of the present invention
  • FIG. 2 is an exploded schematic view of the wall-mounted air-conditioning indoor unit according to the first embodiment of the present invention
  • Sectional view at AA FIG. 4 is a working principle diagram of the wall-mounted air conditioner indoor unit in the first embodiment of the present invention, which shows the suction process of the induced draft fan
  • FIG. 5 is the first embodiment of the present invention.
  • the working principle diagram of the wall-mounted air-conditioning indoor unit shows the air mixing process of the wall-mounted air-conditioning indoor unit.
  • the wall-mounted air conditioner indoor unit (hereinafter referred to as an indoor unit) of the present invention mainly includes a main body 1 and an air supply device 2 installed on the main body 1. An air return port 11 and an air supply port are provided in the main body 1. 12. Heat exchanger 13, cross-flow fan 14, control module (not shown), etc.
  • the air supply device 2 includes an air induction module 21, a jet module 23, and a connecting pipe 25.
  • the air induction module 21 is closely attached to the indoor unit.
  • the rear side is installed, the jet module 23 is installed close to the bottom surface of the indoor unit, and the air induction module 21 is connected to the jet module 23 through a connecting pipe 25.
  • the air induction module 21 includes a first housing 211.
  • An air inlet pipe 212 is provided on the first housing 211.
  • An air draught fan 213 is provided in the first housing 211.
  • the air draught fan 213 has an air suction port and The air outlet 2130, the air induction module 21 is arranged to be able to introduce the outdoor fresh air into the first casing 211 through the air inlet pipe 212 driven by the air induction fan 213, and then pass through the air inlet of the air induction fan 213 and the air exhaust of the air induction fan 213 in order.
  • the tuyere and the connecting pipe 25 are discharged to the jet module 23.
  • the jetting module 23 includes a second casing 231.
  • the second casing 231 is provided with an air inlet 232 and an air outlet 233.
  • the air inlet 232 is connected to the connecting pipe 25.
  • a jet channel 230 is formed between the air inlet 232 and the air outlet 233.
  • the air flow flowing through the connecting pipe 25 passes through the air inlet 232 and the jet channel 230 in this order, and is ejected through the air outlet 233 and mixed with the air discharged from the air outlet 12 of the air-conditioning indoor unit.
  • the cross-flow fan 14 inside the main body 1 and the induced-air fan 213 in the air induction module 21 rotate at low and medium speeds at the same time, and the indoor air is in the cross-flow fan 14.
  • the indoor air After being driven by the air inlet 11 into the body 1 and passing through the heat exchanger 13, it is sent into the room from the air outlet 12; the outdoor fresh air is driven by the induced air fan 213 from the air inlet pipe 212 into the first casing 211, and passes in sequence.
  • the air outlet of the induced draft fan 213, the connection pipe 25, the air inlet 232, and the jet channel 230 After the air inlet of the induced draft fan 213, the air outlet of the induced draft fan 213, the connection pipe 25, the air inlet 232, and the jet channel 230, it is discharged through the air outlet 233 and mixed with the air sent from the air inlet 12 into the room.
  • the indoor unit of the present invention can mix the fresh air air flow emitted from the jet module 23 with the air sent from the air outlet 12 during operation, which significantly improves the phenomenon that the indoor unit supplies supercooled / superheated air at high air volumes.
  • the noise of the indoor unit when the cross-flow fan 14 runs at high speed is greatly reduced. That is, the present invention solves the problems of overcooling / overheating and high noise of the air conditioner in the prior art when the air conditioner is operating at a large air volume, and the air supplement device 2 has a simple structure and a significant effect, and can not affect the aesthetics of the indoor unit.
  • it can increase the supply air volume and assist the air conditioner to perform cooling / heating, which is suitable for large-scale popularization.
  • the first casing 211 is a substantially rectangular parallelepiped, and includes a front cover 211 a and a rear cover 211 b.
  • the front cover 211 a can be snapped, Adhesive, screwing and other methods are tightly connected to the rear cover 211b.
  • the front cover 211a can be connected to the body 1 in the same manner.
  • the upper side of the front cover 211a and the rear cover 211b are respectively provided with half mounting holes (refer to FIG. 2). After the first housing 211 is installed, a complete mounting hole can be formed.
  • the indoor end of the air inlet pipe 212 has a bell mouth structure, which is installed in cooperation with the mounting hole, such as plugging or screwing, etc .; the outdoor end of the air inlet pipe 212 extends through the wall to the outside.
  • the induced draft fan 213 is preferably a centrifugal fan, which includes a volute 2131, a motor 2132, and a fan 2133.
  • the fan 2133 is formed with an air inlet, and the volute 2131 is provided with an air outlet.
  • a through hole 214 is provided on the bottom surface of the first casing 211.
  • the first end of the connecting pipe 25 passes through the through hole 214 and is connected to the exhaust port of the induced draft fan 213.
  • the second end of the connecting pipe 25 is connected to the air inlet 232.
  • the pipe between the first end and the second end of the connecting pipe 25 has a curved surface section, that is, the cross section of the pipe is arc-shaped, and the second end of the connecting pipe 25 has a
  • the second housing 231 is a substantially rectangular parallelepiped, and the bottom surface thereof communicates with the room and is provided with a plurality of drainage plates 234.
  • the drainage plates 234 can introduce nearby indoor air into the jet channel 230 and communicate with The air flows of the air induction module 21 are mixed and ejected from the air outlet 233.
  • the deflector 234 is preferably convex in cross section, so that indoor air can be better guided to flow in the direction of the air outlet 233 when the indoor air flows through the curved deflector 234 from below.
  • An air outlet grille 2331 is provided at the air outlet 233, and the air outlet grille can restrict the air outlet direction of the air outlet 233 to be horizontal or oblique upward and have a certain angle with the horizontal direction.
  • the included angle can be any value between 5 ° -30 °. Specifically, the included angle may be 5 °, 10 °, 15 °, 20 °, 25 °, 30 °, or the like.
  • the air supply device 2 can be controlled separately.
  • the air supply device 2 is equipped with an electric control component (not shown in the figure).
  • the air supply device 2 is equipped with a remote control or a mobile phone APP.
  • the buttons for controlling the air supply device are reserved in advance on the air conditioner remote control, and the main control component is directly connected to the air conditioner remote control through the air conditioner remote control. The method of leaving the interface realizes the air control of the air supply device 2.
  • the above arrangement has the advantage that, through the arrangement of the supplementary air device 2, when the indoor unit is operating, the induced draft fan 213 and the cross-flow fan 14 operate together at a low and medium speed instead of the high-speed operation of the cross-flow fan 14. In the case of changing or even increasing, the noise is greatly reduced.
  • the higher the rotation speed the greater the noise.
  • the rotation speed is increased to the maximum speed, the air flow is accelerated, the vibration is significantly increased, and the noise is increased. Will grow geometrically.
  • the induced draft fan 213 can share the air supply volume for the cross-flow fan 14, thereby greatly reducing the air supply in the indoor unit of the air conditioner on the premise of providing the same air supply volume.
  • the noise generated by the cross-flow fan 14 at high speed ensures that the operation performance of the air conditioner is unchanged or even improved.
  • the fresh air flow emitted by the jet module 23 is mixed with the air sent from the air supply port 12, on the one hand, the air conditioner's air output is better and softer, and many problems such as air conditioning diseases caused by the supercooling / overheating of the air conditioner indoor unit are avoided;
  • the air conditioner indoor unit can also introduce outdoor fresh air during operation, guarantee the oxygen content of the indoor air, and solve many problems such as indoor turbidity and poor quality.
  • the setting of the drainage plate 234 makes full use of the Venturi effect. When fresh air flows through the jet channel, the air pressure is large. The rapid flow of air will cause negative pressure near the drainage plate 234, and the indoor air flow will follow the drainage.
  • the plate 234 is sucked into the jet flow channel and the fresh air air is smoothly mixed, so that the airflow can be further increased while the speed of the induced draft fan 213 and the crossflow fan 14 is maintained, or the induced draft fan is ensured while the supply air volume is guaranteed.
  • the speed of the 213 and the cross-flow fan 14 can be further reduced, and the noise can be further reduced.
  • the arc-shaped cross section of the drainage plate 234 reduces the on-line loss during the drainage and the friction loss when mixing with the air flow in the jet channel, and effectively improves the air supply.
  • the connecting pipe 25 has a curved surface section and a second end with a bell mouth, so that the airflow discharged from the exhaust port of the induced draft fan 213 can be smoothly transferred into the jet channel, thereby reducing loss along the way.
  • the indoor end of the air inlet pipe 212 is provided with a bell mouth structure, which can make the outdoor fresh air enter the first casing 211 more smoothly and smoothly, thereby increasing the air suction capacity of the induced draft fan 213 and further increasing the air supply capacity.
  • the air outlet grille can restrict the arrangement of the air outlet 233 to a horizontal direction or an oblique upward direction with a certain angle with the horizontal direction, so that the air flow emitted by the jet module 23 and the air sent from the air outlet 12 can be fully mixed.
  • the air supply device 2 can be installed outside the body 1 of the existing wall-mounted air-conditioning indoor unit, this also enables the air supply device 2 of the present invention to be sold separately, and the user does not need to purchase a new low-noise device at a higher cost.
  • the air conditioner can be installed outside the main body 1 of the indoor unit of the air conditioner with only a small purchase cost and modification cost, which greatly expands the application scenario of the present invention and is suitable for large-scale promotion and use.
  • the cross section of the drainage plate 234 may be set to other straight lines or arcs, as long as the shape can reduce the loss along the course of the drainage process; for another example, the air supply device 2 may not be provided with the connection pipe 25, but instead The air outlet of the induced draft fan 213 is directly connected to the air inlet 232 of the jet module 23; for another example, the connecting pipe 25 may not have a curved surface section, but a right-angled section may be used instead, and the second end of the connecting pipe 25 may not be provided with a horn Port structure, etc .; for another example, the induced draft fan 213 can also use other such as axial flow fans or mixed flow fans.
  • a purification component may be further provided in the first casing 211 to circulate and purify the indoor air, improve the cleanliness of the indoor air, and reduce the floating particles in the air.
  • the purification component includes a partition and a filter layer, and the partition is sealedly connected to the first casing 211 so as to separate the first casing 211 into a first chamber and a second chamber; a filter hole is formed in the partition, and the filter layer is disposed on the The first chamber covers the filtering hole, and the induced draft fan 213 is disposed in the second chamber, and the air suction port thereof is corresponding to the filtering hole.
  • the filter layer is a filter structure that can adsorb or decompose harmful gases in the air, such as HEPA filters or activated carbon filters.
  • HEPA filters usually include three layers of filter layers (primary filter layer, charged layer, electrostatic dust collection layer). The removal efficiency of particles with a diameter of 0.3 microns or less can reach 99.97% or more. In this way, when the induced fan 213 is operated, the indoor air is first filtered through the filter layer and then sucked by the induced fan 213.
  • FIG. 6 is an exploded schematic diagram of a wall-mounted air-conditioning indoor unit in a second embodiment of the present invention
  • FIG. 7 is a working principle diagram of a wall-mounted air-conditioning indoor unit in a second embodiment of the present invention.
  • two other induced draft fans 213 and two connecting pipes 25 may be provided in the first casing 211 under the condition that other setting modes are unchanged.
  • two through holes 214 are provided in the front cover 211a, and the jet module 23 is provided with two air inlets 232.
  • the induced fan 213 is symmetrically disposed in the first casing 211. In this way, when the indoor unit is working, the two induced draft fans 213 and the cross-flow fan 14 can achieve the same air supply volume at a smaller rotation speed, thereby further reducing the noise generated by the indoor unit when the air supply volume is large and improving the user. Experience.
  • air-conditioning indoor unit of the present invention is described in conjunction with a wall-mounted air-conditioning indoor unit, it is obvious that the air supply device of the present invention can also be applied to other air-conditioning indoor units, such as a cabinet-type air-conditioning indoor unit.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

一种用于空调室内机的补风装置（2）和空调室内机，该补风装置（2）包括引风模块（21）和射流模块（23），引风模块（21）包括第一壳体（211），第一壳体（211）上设有与室外连通的进风管（212），第一壳体（211）内设有引风机（213）；射流模块（23）包括第二壳体（231），第二壳体（231）上设有进风口（232）和出风口（233），进风口（232）与引风机（213）的排风口（2130）连通，进风口（232）与出风口（233）之间形成射流通道（230），射流模块（23）设置成允许来自引风模块（21）的室外新风流过射流通道（230）后，通过出风口（233）喷出并与空调室内机的送风口（12）排出的风相混合，以改善空调室内机送风过冷/过热的现象，并降低空调室内机的运行噪音。

Description

用于空调室内机的补风装置和空调室内机 技术领域
本发明涉及空气调节技术领域，具体涉及一种用于空调室内机的补风装置和空调室内机。
背景技术
随着生活水平的日益提高，人们对于生活质量的要求也越来越高，这种要求在家用电器上体现得尤为明显。以空调为例，当室内外温差较大时，为了满足用户从室外进入室内后快速制冷/制热的需求，现有的空调通常都具有快速制冷/制热功能，在开启快速制冷/制热功能时，空调的压缩机工作在较高的频率以快速提升制冷量/制热量，空调室内机以高转速、大风量运行将热交换后的冷空气/热空气送回室内，从而实现对室内温度的快速调节。
虽然上述空调的快速制冷/制热功能在一定程度上解决了用户的快速制冷/制热需求，但是这种空调也不可避免地存在一些问题。首先，采用大风量强劲吹风的方式将冷空气/热空气直接送回室内，使得空调吹出的空气存在过冷/过热的问题，过冷/过热都会引起人体的不适，进而引发空调病。尤其是对于老人、儿童、孕妇等一些特殊的用户群体来说尤为明显。其次，空调性能和风噪是一对不可调和矛盾，空调通过加大送风量的送风方案，使得送风量增大的同时，噪音也随之变大，但是如果满足了降噪指标，那么空调的性能(也就是送风量)在一定程度上又会受到限制。这些问题在图书馆、病房、失眠人群的房间等一些特殊的应用场景中尤为明显。也就是说，现有的空调在送风量大时存在送风过冷/过热和噪音大的问题。
相应地，本领域需要一种新的用于空调室内机的补风装置来解决上述问题。
发明内容
为了解决现有技术中的上述问题，即为了解决现有空调在送风量大时存在的送风过冷/过热和噪音大问题，本发明提供了一种用于空调室内机的补风装置，该补风装置包括引风模块和射流模块，所述引风模块包括第一壳体，所述第一壳体上设置有与室外连通的进风管，所述第一壳体内设置有引风 机，所述引风模块设置成能够在所述引风机的带动下，将室外新风通过所述进风管引入所述第一壳体，并通过所述引风机的排风口排出至所述射流模块；所述射流模块包括第二壳体，所述第二壳体上设置有进风口和出风口，所述进风口与所述引风机的排风口连通，所述进风口与所述出风口之间形成有射流通道，所述射流模块设置成允许来自所述引风模块的空气流流过所述射流通道后，通过所述出风口喷射出并与空调室内机的送风口排出的风相混合。
在上述用于空调室内机的补风装置的优选技术方案中，所述第二壳体内设置有引流板，所述引流板能够在所述引风机工作时将附近空气引入所述射流通道。
在上述用于空调室内机的补风装置的优选技术方案中，所述引流板的截面为弧形，所述弧形能够将附近的空气向所述出风口的方向引流。
在上述用于空调室内机的补风装置的优选技术方案中，所述补风装置还包括连接管，所述第一壳体上设置有通孔，所述连接管的第一端穿过所述通孔与所述引风机的排风口连接，所述连接管的第二端与所述进风口连接。
在上述用于空调室内机的补风装置的优选技术方案中，所述连接管具有弧面段；并且/或者所述连接管的第二端具有喇叭口结构。
在上述用于空调室内机的补风装置的优选技术方案中，所述出风口设置有出风格栅，所述出风格栅能够限制所述出风口的出风方向为水平方向或斜向上且与水平方向具有一定的夹角。
在上述用于空调室内机的补风装置的优选技术方案中，所述进风管与所述第一壳体连接的一端具有喇叭口结构。
在上述用于空调室内机的补风装置的优选技术方案中，所述引风机为离心风机。
本发明还提供了一种空调室内机，包括本体，所述空调室内机还包括上述优选技术方案中任一项所述的用于空调室内机的补风装置，所述引风模块和所述射流模块分别与所述空调室内机连接。
在上述空调室内机的优选技术方案中，所述空调室内机为壁挂式室内机，所述引风模块设置于所述壁挂式室内机的背面，所述射流模块设置于所述壁挂式室内机的底面。
本领域技术人员能够理解的是，在本发明的优选技术方案中，用于空调 室内机的补风装置包括引风模块和射流模块，引风模块包括第一壳体，第一壳体上设置有与室外连通的进风管，第一壳体内设置有引风机，引风模块设置成能够在引风机的带动下，将室外新风通过进风管引入第一壳体，并通过引风机的排风口排出至射流模块；射流模块包括第二壳体，第二壳体上设置有进风口和出风口，进风口与引风机的排风口连通，进风口与出风口之间形成有射流通道，射流模块设置成允许来自引风模块的空气流流过射流通道后，通过出风口喷射出并与空调室内机的送风口排出的风相混合。
通过补风装置的设置，本发明能够明显改善空调室内机在大风量时送风过冷/过热的现象，大幅降低空调室内机在大风量运行时的噪音。具体而言，经发明人反复试验、观测、分析和比较发现，在同时启动空调室内机中的风机和引风模块中的引风机时，空调室内机能够通过引风机和空调室内机中的风机同时中低速运转分担送风量，从而在提供相同送风量的前提下，大幅度降低空调器室内机中的风机高速运行时产生的噪音，保证空调的运行性能不变甚至有所提高。通过射流模块射出的新风空气流与送风口排出的风相混合，使得空调的出风更柔和，避免空调室内机的送风过冷过热引起的空调病等诸多问题。通过进风管的设置，使得空调室内机在运行时还能够引入室外新风，保证了室内空气的氧含量，解决室内空气混浊质量差等诸多问题。也就是说，本发明解决了现有技术中空调在大风量运行时存在的送风过冷/过热和噪音大的问题，明显提升了用户的使用体验，并且本发明结构简单，效果显著，适宜大规模推广使用。
附图说明
下面参照附图并结合壁挂式空调室内机来描述本发明的用于空调室内机的补风装置。附图中：
图1为本发明的第一种实施例中壁挂式空调室内机的结构示意图；
图2为本发明的第一种实施例中壁挂式空调室内机的爆炸示意图；
图3为图1在A-A处的剖视图；
图4为本发明的第一种实施例中壁挂式空调室内机的工作原理图，其示出了引风机的吸风过程；
图5为本发明的第一种实施例中壁挂式空调室内机的工作原理图，其示出了壁挂式空调室内机的混风过程；
图6为本发明的第二种实施例中壁挂式空调室内机的爆炸示意图；
图7为本发明的第二种实施例中壁挂式空调室内机的工作原理图，其示出了引风机的吸风过程。
附图标记列表
1、本体；11、回风口；12、送风口；13、热交换器；14、贯流风机；2、补风装置；21、引风模块；211、第一壳体；211a、前罩壳；211b、后罩壳；212、进风管；213、引风机；2130、排风口；2131、蜗壳；2132、电机；2133、风扇；214、通孔；23、射流模块；230、射流通道；231、第二壳体；232、进风口；233、出风口；2331、出风格栅；234、引流板；25、连接管。
具体实施方式
下面参照附图来描述本发明的优选实施例。本领域技术人员应当理解的是，这些实施例仅仅用于解释本发明的技术原理，并非旨在限制本发明的保护范围。例如，虽然附图中的进风管是设置在第一壳体的顶面中部，但是这种位置关系非一成不变，本领域技术人员可以根据需要对其作出调整，以便适应具体的应用场合。例如，进风管还可以设置在第一壳体的侧面或底面等。
需要说明的是，在本发明的描述中，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方向或位置关系的术语是基于附图所示的方向或位置关系，这仅仅是为了便于描述，而不是指示或暗示所述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发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
此外，还需要说明的是，在本发明的描述中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域技术人员而言，可根据具体情况理解上述术语在本发明中的具体含义。
为解决现有空调在送风量大时存在送风过冷/过热和噪音大的问题，本发明提出一种壁挂式空调室内机，以便在降低空调室内机的噪音的同时增加引风量，打破传统空调室内机的送风量和降噪不可兼得的僵局，提升用户使用 体验。
首先参照图1至图5，对本发明的壁挂式空调室内机的第一种实施例进行描述。其中，图1为本发明的第一种实施例中壁挂式空调室内机的结构示意图；图2为本发明的第一种实施例中壁挂式空调室内机的爆炸示意图；图3为图1在A-A处的剖视图；图4为本发明的第一种实施例中壁挂式空调室内机的工作原理图，其示出了引风机的吸风过程；图5为本发明的第一种实施例中壁挂式空调室内机的工作原理图，其示出了壁挂式空调室内机的混风过程。
如图1至图3所示，本发明的壁挂式空调室内机(以下简称室内机)主要包括本体1和安装在本体1上的补风装置2，本体1内设置有回风口11、送风口12、热交换器13、贯流风机14、控制模块(图中未示出)等，补风装置2包括引风模块21、射流模块23和连接管25，引风模块21紧贴于室内机的背面安装，射流模块23紧贴于室内机的底面安装，引风模块21通过连接管25与射流模块23连接。参照图2和图3，引风模块21包括第一壳体211，第一壳体211上设置有进风管212，第一壳体211内设置有引风机213，引风机213具有吸风口和排风口2130，引风模块21设置成能够在引风机213的带动下，将室外新风通过进风管212引入第一壳体211，并依次经过引风机213的吸风口、引风机213的排风口和连接管25后排出至射流模块23。射流模块23包括第二壳体231，第二壳体231上设置有进风口232和出风口233，进风口232与连接管25连接，进风口232与出风口233之间形成有射流通道230，流过连接管25的空气流依次经过进风口232和射流通道230后，通过出风口233喷射出并与空调室内机的送风口12排出的风相混合。
参照图4、图5并结合图1至图3，室内机工作时，本体1内部的贯流风机14与引风模块21中的引风机213同时以中低速转动，室内空气在贯流风机14的带动下从回风口11进入本体1并穿过热交换器13后，从送风口12送入室内；室外新风在引风机213的带动下从进风管212进入第一壳体211，并依次经过引风机213的吸风口、引风机213的排风口、连接管25、进风口232和射流通道230后，通过出风口233排出与送风口12送出的风混合进入室内。
通过上述描述可以看出，本发明的室内机能够在运行时通过射流模块23射出的新风空气流与送风口12送出的风混合，明显改善室内机在大风量时 送风过冷/过热的现象，通过同时启动引风机213和贯流风机14同时以中低速运转，大幅度降低室内机在贯流风机14高速运行时的噪音。也就是说，本发明解决了现有技术中空调在大风量运行时存在的送风过冷/过热和噪音大的问题，并且补风装置2结构简单，效果显著，能够在不影响室内机美观性的同时嵌入式的增加送风量，辅助空调进行制冷/制热，适宜大规模推广使用。
参照图2并按照图2所示方位，在一种可能的实施例中，第一壳体211大致成长方体，其包括前罩壳211a和后罩壳211b，前罩壳211a能够通过卡接、粘接、螺接等方式与后罩壳211b紧固连接。类似地，前罩壳211a能够以相同的方式与本体1连接。前罩壳211a和后罩壳211b的上侧各开设有半个安装孔(参照图2)，第一壳体211安装好后能够组成一个完整的安装孔。进风管212的室内端具有喇叭口结构，该喇叭口结构与安装孔配合安装，如插接或螺接等；进风管212的室外端穿过墙壁伸出至室外。引风机213优选地为离心风机，其包括蜗壳2131、电机2132和风扇2133，风扇2133形成有吸风口，蜗壳2131上设置有排风口。第一壳体211的底面设置有通孔214，连接管25的第一端穿过该通孔214与引风机213的排风口连接，连接管25的第二端与进风口232连接。连接管25的第一端与第二端之间的管道具有弧面段，即管道的截面为弧形，连接管25的第二端具有喇叭口结构。
参照图3并按照图3所示方位，第二壳体231大致成长方体，其底面与室内连通并设置有多个引流板234，引流板234能够将附近的室内空气引入射流通道230并与来自引风模块21的空气流混合后从出风口233喷射出。引流板234优选地横截面为上凸的弧形，以便室内空气从下方流过该弧形引流板234时能够更好地被引导向出风口233的方向流动。出风口233处设置有出风格栅2331，出风格栅能够限制出风口233的出风方向为水平方向或斜向上且与水平方向具有一定的夹角。例如，夹角可以为5°-30°之间的任意值。具体地，夹角可以为5°、10°、15°、20°、25°、30°等。
在控制方式上，补风装置2可以单独控制，例如补风装置2内部配置有电控组件(图中未示出)，为补风装置2配置遥控器或使用手机APP等方式对电控组件进行控制，也可以将补风装置2与空调器结合控制，例如在空调遥控器上事先预留用于控制补风装置的按键，通过空调遥控器直接、或将主控组件连接至空调器预留接口的方式实现空对补风装置2的控制。
上述设置的优点在于：通过补风装置2的设置，使得室内机在运转时，引风机213和贯流风机14共同运转在中低转速代替贯流风机14的高速运转，能够在送风量不变甚至增大的情形下，大幅度减小噪音。经发明人反复试验、观测、分析和比较发现，对于贯流风机14来说，转速越高，噪音越大，当转速增大至最大转速附近时，由于空气流动加快、震动明显增大，噪音会呈几何级的增长。而使贯流风机14和引风机213同时运行在中低速时，引风机213能够为贯流风机14分担送风量，从而在提供相同送风量的前提下，大幅度降低空调器室内机中的贯流风机14高速运行时产生的噪音，保证空调的运行性能不变甚至有所提高。通过射流模块23射出的新风空气流与送风口12送出的风相混合，一方面使得空调的出风更佳柔和，避免空调室内机的送风过冷/过热引起的空调病等诸多问题；另一方面使得空调室内机在运行时还能够引入室外新风，保证了室内空气的氧含量，解决了室内空气混浊、质量差等诸多问题。引流板234的设置，充分利用了文丘里效应，当新风空气流从射流通道内流过时，气流的气压大，气流的快速流动会使引流板234附近产生负压，室内气流就会顺着引流板234被吸入射流通道与新风空气流平稳混合，从而能够在保持引风机213和贯流风机14转速不变的前提下，进一步增大风量，或者在保证送风量的前提下，使得引风机213和贯流风机14的转速能够进一步降低，进一步降低噪音。引流板234截面为弧形的设置方式，则减少了引流过程中的沿程损失以及与射流通道内空气流混合时的摩擦损失，有效地提升了送风量。
此外，连接管25的管道具有弧面段以及第二端具有喇叭口的设置方式，使得引风机213排气口排出的气流能够顺利过渡至射流通道内，减少沿程损失。进风管212的室内端具有喇叭口结构的设置方式，能够使室外新风进入第一壳体211时更加平稳顺利，从而增加引风机213的吸风量，进而增大送风量。出风格栅能够限制出风口233出风方向为水平方向或斜向上且与水平方向具有一定夹角的设置方式，则能够使射流模块23射出的空气流与送风口12送出的风充分混合，以及能够改变送风口12的送风风向，避免送风口12的风向人体直吹以及混合风混合不均出现过冷过热的现象。并且，由于补风装置2能够设置于现有的壁挂式空调室内机的本体1外，这还使得本发明的补风装置2能够单独出售，用户无需花费更高的成本购买一台新的低噪音空调，而是只花费很小的购买成本和改造成本即可将补风装置2安装于空调 室内机的本体1外，大大拓展了本发明的应用场景，适宜大规模推广使用。
当然，上述实施例仅仅用来阐述本发明的原理，并非旨在于限制本发明的保护范围，在不偏离本发明原理的条件下，本领域技术人员可以对上述实施例进行调整，以便本发明能够应用于更加具体的应用场景。例如，引流板234的截面可以设置为其他直线或弧线，只要该形状能够减小引流过程中的沿程损失即可；再如，补风装置2也可以不设置连接管25，而是将引风机213的排风口直接与射流模块23的进风口232连通；再如，连接管25可以不具有弧面段，而是采用直角段代替，连接管25的第二端也可以不设置喇叭口结构等；再如，引风机213还可以采用其他如轴流风机或混流风机等。
再如，在第一壳体211内还可以设置净化组件，以便对室内空气进行循环净化和过滤，提高室内空气的清洁度，减少空气中的浮游颗粒。如净化组件包括隔板和过滤层，隔板与第一壳体211密封连接从而将第一壳体211分隔为第一腔室和第二腔室；隔板上开设过滤孔，过滤层设置于第一腔室并覆盖该过滤孔，引风机213设置于第二腔室，其吸风口与过滤孔对应设置。过滤层为可以吸附或分解空气中有害气体的过滤结构，如HEPA过滤器或活性炭滤网等，HEPA过滤器通常包括三层过滤层(初级过滤层、荷电层、静电集尘层)，对直径为0.3微米以下的微粒去除效率可达到99.97％以上。如此一来，在引风机213运转时，室内空气先经过过滤层进行过滤后，被引风机213吸入。
下面参照图6和图7，对本发明的第二种实施例中壁挂式空调室内机进行描述。其中，图6为本发明的第二种实施例中壁挂式空调室内机的爆炸示意图；图7为本发明的第二种实施例中壁挂式空调室内机的工作原理图，其示出了引风机213的吸风过程。如图6和图7所示，在另一种可能的实施例中，在其他设置方式不变的条件下，还可以在第一壳体211内设置两个引风机213和两个连接管25，对应地，前罩壳211a内设置有两个通孔214，射流模块23设置有两个进风口232，其中，引风机213对称的设置于第一壳体211内。这样一来，在室内机工作时，两个引风机213与贯流风机14能够以更小的转速实现相同的送风量，从而进一步减小送风量大时室内机产生的噪音，改善用户体验。
最后需要说明的是，虽然本发明的空调室内机是结合壁挂式空调室内机进行描述的，但是显然本发明的补风装置还可以应用于其他空调室内机，如 柜式空调室内机等。
至此，已经结合附图所示的优选实施例描述了本发明的技术方案，但是，本领域技术人员容易理解的是，本发明的保护范围显然不局限于这些具体实施例。在不偏离本发明的原理的前提下，本领域技术人员可以对相关技术特征作出等同的更改或替换，这些更改或替换之后的技术方案都将落入本发明的保护范围之内。

Claims (10)

  1. 一种用于空调室内机的补风装置，其中，所述补风装置包括引风模块和射流模块，
    所述引风模块包括第一壳体，所述第一壳体上设置有与室外连通的进风管，所述第一壳体内设置有引风机，所述引风模块设置成能够在所述引风机的带动下，将室外新风通过所述进风管引入所述第一壳体，并通过所述引风机的排风口排出至所述射流模块；
    所述射流模块包括第二壳体，所述第二壳体上设置有进风口和出风口，所述进风口与所述引风机的排风口连通，所述进风口与所述出风口之间形成有射流通道，所述射流模块设置成允许来自所述引风模块的空气流流过所述射流通道后，通过所述出风口喷射出并与空调室内机的送风口排出的风相混合。
  2. 根据权利要求1所述的用于空调室内机的补风装置，其中，所述第二壳体内设置有引流板，所述引流板能够在所述引风机工作时将所述第二壳体附近的空气引入所述射流通道。
  3. 根据权利要求2所述的用于空调室内机的补风装置，其中，所述引流板的截面为弧形，所述弧形能够将所述附近的空气向所述出风口的方向引流。
  4. 根据权利要求1至3中任一项所述的用于空调室内机的补风装置，其中，所述补风装置还包括连接管，所述第一壳体上设置有通孔，所述连接管的第一端穿过所述通孔与所述引风机的排风口连接，所述连接管的第二端与所述进风口连接。
  5. 根据权利要求4所述的用于空调室内机的补风装置，其中，所述连接管具有弧面段；并且/或者所述连接管的第二端具有喇叭口结构。
  6. 根据权利要求4所述的用于空调室内机的补风装置，其中，所述出风口设置有出风格栅，所述出风格栅能够限制所述出风口的出风方向为水平方向或斜向上且与水平方向具有一定的夹角。
  7. 根据权利要求1所述的用于空调室内机的补风装置，其中，所述进风管与所述第一壳体连接的一端具有喇叭口结构。
  8. 根据权利要求1所述的用于空调室内机的补风装置，其中，所述引风机为离心风机。
  9. 一种空调室内机，包括本体，其中，所述空调室内机还包括权利要求1至8中任一项所述的用于空调室内机的补风装置，所述引风模块和所述射流模块分别与所述空调室内机连接。
  10. 根据权利要求9所述的空调室内机，其中，所述空调室内机为壁挂式室内机，所述引风模块设置于所述壁挂式室内机的背面，所述射流模块设置于所述壁挂式室内机的底面。
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