CN111735109A - Fresh air module, air conditioner and control method of fresh air module - Google Patents
Fresh air module, air conditioner and control method of fresh air module Download PDFInfo
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- CN111735109A CN111735109A CN202010701962.5A CN202010701962A CN111735109A CN 111735109 A CN111735109 A CN 111735109A CN 202010701962 A CN202010701962 A CN 202010701962A CN 111735109 A CN111735109 A CN 111735109A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000000746 purification Methods 0.000 claims description 63
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- 230000005540 biological transmission Effects 0.000 description 3
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- 231100001243 air pollutant Toxicity 0.000 description 1
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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
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
- F24F1/0038—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room in combination with simultaneous exhaustion of inside 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
- 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
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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
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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
- F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
- F24F1/0073—Indoor units, e.g. fan coil units with means for purifying supplied air characterised by the mounting or arrangement 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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the 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
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
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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
- F24F13/20—Casings or covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
- F24F2013/205—Mounting a ventilator fan therein
Abstract
The invention discloses a fresh air module, an air conditioner and a control method of the fresh air module, wherein the fresh air module comprises a shell, the shell is provided with an air inlet, an air outlet and a fresh air duct, the air inlet is used for being communicated with a fresh air pipeline, the air outlet is used for being communicated with a room, a wind wheel is arranged in the fresh air duct, the wind wheel is arranged to be capable of driving airflow to flow into the fresh air duct from the air inlet and flow out from the air outlet during forward rotation, and driving airflow to flow into the fresh air duct from the air outlet and flow out from the air inlet during reverse rotation, and a motor is used for. The air conditioner provided by the invention is provided with a fresh air module for providing fresh air indoors, and the fresh air indoors is conveyed or exhausted outdoors by controlling the wind wheel to rotate forwards or reversely. According to the invention, the switching of air inlet or air exhaust of the fresh air module can be realized through the forward and reverse rotation of the wind wheels, two wind wheels or two air channels are not required, the structure is simple, and the occupied space is small.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a fresh air module, an air conditioner and a control method of the fresh air module.
Background
In the related art, air conditioners in the market are generally configured with a fresh air module to introduce fresh air of an outdoor environment into an indoor environment by using the fresh air module, so as to supplement fresh air of the indoor environment and improve air quality of the indoor environment.
However, there are times when smoke or other impurities may be present in the indoor air, resulting in poor indoor air quality, and it is desirable to vent the air to the outside. However, in the existing fresh air module, two wind wheels or two air ducts are usually required to be arranged, switching between fresh air supply and air exhaust is realized through switching the wind wheels or the air ducts, the structure is complex, the production cost is high, the occupied space is large, and the whole volume of the fresh air module is large.
Disclosure of Invention
The invention mainly aims to provide a fresh air module, an air conditioner and a control method of the fresh air module, and aims to provide the fresh air module which can realize the switching of fresh air inlet and air exhaust, has a simple structure and occupies a small space.
In order to achieve the above object, the present invention provides a fresh air module, including:
the air conditioner comprises a shell, a fan and a fan, wherein the shell is provided with an air inlet, an air outlet and a fresh air duct which is communicated with the air inlet and the air outlet, the air inlet is used for communicating a fresh air pipeline, and the air outlet is used for communicating a room;
the fan assembly comprises a motor and a wind wheel, the wind wheel is arranged in the fresh air duct, the wind wheel is set to be capable of driving airflow to flow into the fresh air duct from the air inlet and flow out from the air outlet when rotating forwards, driving airflow to flow into the fresh air duct from the air outlet and flow out from the air inlet when rotating backwards, and the motor is used for being in driving connection with the wind wheel to drive the wind wheel to rotate forwards or reversely.
In an embodiment, the wind wheel is a vortex wind wheel, the housing includes a volute, the wind wheel is disposed in the volute, and the air inlet and the air outlet are disposed on the periphery of the volute.
In an embodiment, an inner wall of the volute is circumferentially arranged around the wind wheel to form a sealing section and a working section, a distance L1 between the sealing section and the wind wheel of the inner wall of the volute is smaller than a distance L2 between the working section and the wind wheel of the inner wall of the volute, and the air inlet, the sealing section, the air outlet and the working section are sequentially arranged along the circumferential direction of the volute.
In one embodiment, the central angle a of the sealing segment is greater than or equal to 10 ° and less than or equal to 90 °.
In one embodiment, the central angle a of the sealing segment is greater than or equal to 20 ° and less than or equal to 30 °.
In one embodiment, the ratio of the distance L1 between the sealing section and the wind wheel of the inner wall of the volute and the distance L2 between the working section and the wind wheel of the inner wall of the volute is less than or equal to 0.5, and the distance L1 between the sealing section and the wind wheel of the inner wall of the volute is less than or equal to 10 mm.
In an embodiment, the fresh air module further includes a purifying device disposed on the casing for purifying the air flowing through the fresh air duct.
In an embodiment, the purifying device has a first operating state and a second operating state, the purifying amount of the purifying device in the first operating state is greater than the purifying amount in the second operating state, the fresh air module further includes a switching mechanism disposed in the housing, and the switching mechanism is configured to switch the purifying device to the first operating state when the wind wheel rotates forward and to switch the purifying device to the second operating state when the wind wheel rotates backward.
In an embodiment, an air inlet channel is further arranged in the housing, one end of the air inlet channel is butted with the air inlet, the other end of the air inlet channel is used for communicating the fresh air pipeline, and the purifying device is arranged in the air inlet channel.
In an embodiment, the purifying device is provided as a screen plate structure, the purifying device is openably and closably installed in the air inlet channel, in the first working state, the purifying device covers the air inlet channel, in the second working state, the purifying device opens the air inlet channel, and the switching mechanism is used for driving the purifying device to move, so that the purifying device is switched between the first working state and the second working state.
In an embodiment, the purifying device is rotatably disposed on the housing, in the first operating state, the purifying device is parallel to the air inlet, in the second operating state, the purifying device is perpendicular to the air inlet, and the switching mechanism is configured to drive the purifying device to rotate, so that the purifying device is switched between the first operating state and the second operating state.
In an embodiment, the purification device includes a first filter screen plate and a second filter screen plate, in the first working state, the ends of the first filter screen plate and the second filter screen plate are butted and arranged in parallel to cover the air inlet channel, in the second working state, the first filter screen plate and the second filter screen plate are perpendicular to the air inlet respectively to open the air inlet channel, the driving mechanism includes a first gear and a second gear, and a motor in driving connection with the first gear, the first gear is connected with a rotating shaft of the first filter screen plate, the second gear is connected with a rotating shaft of the second filter screen plate, and the first gear is engaged with the second gear.
The invention also provides an air conditioner which comprises the fresh air module.
The invention also provides a control method of the fresh air module, wherein the fresh air module is the fresh air module, and the control method comprises the following steps:
when the air conditioner is in a fresh air mode, the wind wheel is controlled to rotate forwards;
and when the air conditioner is in an air exhaust mode, controlling the wind wheel to rotate reversely.
In one embodiment, the fresh air module includes a purifying device disposed in the housing for purifying air flowing through the fresh air duct;
the fresh air module further comprises a switching mechanism which is arranged on the shell and used for switching the purifying device between the first working state and the second working state;
when the air conditioner is in the new trend mode, control after the step of wind wheel corotation, still include:
controlling the switching mechanism to switch the purification device to the first working state;
after the step of controlling the wind wheel to rotate reversely when the air conditioner is in the air exhaust mode, the method further comprises the following steps:
and controlling the switching mechanism to switch the purification device to the second working state.
The fresh air module provided by the invention comprises a shell, wherein the shell is provided with an air inlet, an air outlet and a fresh air duct, the air inlet is used for communicating a fresh air pipeline, the air outlet is used for communicating a room, a wind wheel is arranged in the fresh air duct, the wind wheel is arranged to be capable of driving airflow to flow into the fresh air duct from the air inlet and flow out from the air outlet during forward rotation, and driving airflow to flow into the fresh air duct from the air outlet and flow out from the air inlet during reverse rotation, and a motor is in driving connection with the wind wheel to drive the. In the embodiment provided by the invention, the air conditioner is provided with the fresh air module for providing fresh air indoors, the switching of conveying the fresh air indoors or exhausting air outdoors can be realized by controlling the wind wheel in the fresh air module to rotate forwards or reversely, and the wind wheel or the air duct is not required to be additionally arranged for exhausting air, so that the fresh air module has a simpler integral structure and occupies a small space.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic perspective view of a fresh air module according to an embodiment of the present invention;
FIG. 2 is a front view of the fresh air module of FIG. 1;
3 FIG. 3 3 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 at 3 A 3- 3 A 3 of 3 FIG. 32 3; 3
FIG. 4 is a side view of the fresh air module of FIG. 1;
FIG. 5 is a cross-sectional view taken at B-B of FIG. 4;
FIG. 6 is a schematic diagram of the dimensional relationship between the volute and the rotor of FIG. 1;
FIG. 7 is a side view of another embodiment of a fresh air module provided in accordance with the present invention with a housing portion partially removed;
FIG. 8 is a front view of the fresh air module of FIG. 7;
fig. 9 is a schematic perspective view of the fresh air module in fig. 7;
FIG. 10 is a top view of the switching mechanism of FIG. 9;
fig. 11 is a schematic perspective view of the switching mechanism in fig. 10;
FIG. 12 is a flowchart illustrating an embodiment of a method for controlling a fresh air module according to the present invention;
fig. 13 is a flowchart of another embodiment of a control method of a fresh air module according to the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied.
Referring to fig. 1 to 9, the present invention provides a fresh air module and an embodiment of an air conditioner including the fresh air module. The air conditioner can be an air conditioner indoor unit or an air conditioner outdoor unit, and can also be an air conditioner complete machine comprising the air conditioner indoor unit and the air conditioner outdoor unit. Preferably, the new trend module is located in the air condensing units, directly to indoor new trend of carrying, avoids setting up new trend transmission channel between air condensing units and indoor, leads to new trend transmission channel overlength, and the windage is big and difficult the maintenance. The indoor unit of the air conditioner can be any one of a wall-mounted indoor unit of the air conditioner, a cabinet indoor unit of the air conditioner, an air machine, a ceiling indoor unit of the air conditioner or a mobile air conditioner. In the following embodiments, an air conditioner is mainly described as an example of a wall-mounted air conditioner indoor unit, and other types may be referred to for implementation.
In this embodiment, the air conditioner is a wall-mounted air conditioner indoor unit, and the fresh air module is disposed at one end of the air conditioner indoor unit in the length direction. Therefore, the shape and the structure of the wall-mounted air conditioner indoor unit are fully utilized, the fresh air module is added under the condition that the original structure of the wall-mounted air conditioner indoor unit is not influenced as much as possible, the production cost is low, and the appearance of the air conditioner indoor unit is attractive.
Referring to fig. 1 to 5, in an embodiment, the fresh air module includes a housing 10 and a fan assembly, the housing 10 is provided with an air inlet 102, an air outlet 103, and a fresh air duct 101 communicating the air inlet 102 and the air outlet 103, the air inlet 102 is used for communicating with the fresh air pipeline 41, the air outlet 103 is used for communicating with a room, the fan assembly includes a motor 50 and a wind wheel 20, the wind wheel 20 is disposed in the fresh air duct, the wind wheel 20 is configured to drive an air flow to flow into the fresh air duct 101 from the air inlet 102 and flow out from the air outlet 103 when rotating forward, and to flow into the fresh air duct 101 from the air inlet 102 when rotating backward, and the motor 50 is configured to be drivingly connected to the wind wheel 20 to drive the wind wheel 20 to rotate forward or backward.
In this embodiment, the fresh air pipeline 41 is used for communicating with the outside, specifically, a hole may be formed in a wall body on which the air conditioner is installed, and the fresh air pipeline 41 is inserted into the hole to introduce outdoor fresh air into the casing 10, and flow into the fresh air duct 101 in the casing 10 from the air inlet 102, and then flow out from the air outlet 103 and send into the room. The fan subassembly in the new trend module provides drive power, and the drive air current flows. Specifically, the wind turbine assembly may include a motor 50 and a wind turbine 20, wherein the motor 50 is used for driving the wind turbine 20 to rotate, and the wind turbine rotates to drive the airflow to flow in a set flow direction. In this embodiment, the wind wheel 20 is configured to drive an airflow to flow into the fresh air duct 101 from the air inlet 102 and flow out from the air outlet 103 when the wind wheel rotates forward, and to drive an airflow to flow into the fresh air duct 101 from the air outlet 103 and flow out from the air inlet 102 when the wind wheel rotates backward. Those skilled in the art will appreciate that the rotor 20 should be an axial flow rotor 20 or a vortex rotor, etc., and that the rotor 20 can reverse the direction of the airflow when reversed. The rotor 20, such as the centrifugal rotor 20 or the cross-flow rotor 20, which cannot realize the reverse flow of the airflow by reverse rotation, is out of the scope of the present application.
In this embodiment, the air conditioner is provided with a fresh air module for providing fresh air indoors, the air conditioner can have a fresh air mode or an air exhaust mode, and in the fresh air mode, the wind wheel 20 in the fresh air module is controlled to rotate positively, so that air flows along the directions of the air inlet 102, the fresh air duct 101 and the air outlet 103, and fresh outdoor air is conveyed indoors, and the indoor air quality is improved. In the air exhaust mode, the wind wheel 20 in the fresh air module is controlled to rotate reversely, so that the air flow can be driven to flow along the directions of the air outlet 103, the fresh air duct 101 and the air inlet 102, and the indoor air is conveyed to the outdoor. So, new trend module in this embodiment can realize new trend and two kinds of functions of airing exhaust to only need a wind wheel 20 just positive and negative to change between new trend and airing exhaust to realize, need not to set up wind wheel 20 or wind channel in addition in order to air exhaust, make new trend module overall structure simpler, occupation space is little.
The type of the rotor 20 can be designed as desired, and referring to fig. 3, preferably, the rotor 20 is a vortex rotor. Vortex wind wheel compares axial flow wind wheel 20, still has great wind pressure when the reversal, can realize airing exhaust effectively to vortex wind wheel still has the wind pressure big, and the advantage that compressive capacity is strong, even system's windage increase, vortex wind wheel still can keep higher rotational speed, and obvious fluctuation can not appear in the amount of wind and influence the new trend or the effect of airing exhaust. In this embodiment, the housing 10 includes a volute 115, the wind wheel 20 is disposed in the volute 115, and the air inlet 102 and the air outlet 103 are disposed on the periphery of the volute 115, so that the fresh air module does not need to provide an air inlet cavity in the axial direction of the wind wheel 20, so that the whole structure of the fresh air module is more compact, and the thickness of the wind wheel 20 can be increased in a limited space to increase the air volume.
On the basis of the previous embodiment, referring to fig. 3 and 6, the inner wall of the volute 115 is circumferentially arranged around the wind wheel 20 to form a sealing section 111 and a working section 112, a distance L1 between the sealing section 111 and the wind wheel 20 of the inner wall of the volute 115 is smaller than a distance L2 between the working section 112 and the wind wheel 20 of the inner wall of the volute 115, and the air inlet 102, the sealing section 111, the air outlet 103 and the working section 112 are sequentially arranged along the circumferential direction of the volute 115. Because the air inlet 102 and the air outlet 103 are both arranged in the circumferential direction of the vortex wind wheel, turbulence may be generated between the air inlet 102 and the air outlet 103, which affects the flow direction of the air flow in the fresh air duct 101, resulting in the reduction of the air volume of the vortex wind wheel. For this reason, in the present embodiment, the air inlet 102 and the air outlet 103 are separated by the sealing section 111, so as to avoid turbulence and influence on the air volume. In this way, since the inner wall of the volute 115 of the sealing section 111 is in the fresh air duct 101, the airflow generally flows in the direction from the air inlet 102 to the working section 112 to the air outlet 103.
It will be appreciated that the sealing section 111 needs to have a certain length to effectively separate the intake opening 102 and the exhaust opening 103. If the setting range of the sealing section 111 is too small, the air flows of the air inlet 102 and the air outlet 103 affect each other, which results in a small and unstable air flow, and if the setting range of the sealing section 111 is too large, the whole volume of the air flow channel corresponding to the working section 112 is small, which affects the air volume of the vortex fan. Therefore, the sealing section 111 should be kept within a certain range to effectively isolate the air inlet 102 and the air outlet 103 and provide the required air volume. Therefore, the central angle a corresponding to the sealing section 111 is in the range of more than or equal to 10 ° and less than or equal to 90 °, which can play a role of separating the air inlet and the air outlet 103, and enables the vortex wind wheel to provide acceptable air volume. In this embodiment, the range of the central angle a corresponding to the seal segment is preferably greater than or equal to 20 ° and less than or equal to 30 °, and in this range, the vortex wind wheel can provide the air intake volume and the air exhaust volume required by the fresh air module under the condition of forward and reverse rotation. It should be noted that the central angle a corresponding to the sealing segment 111 is measured as follows: referring to fig. 6, when the volute 115 and the wind wheel 20 are projected in a direction perpendicular to the wheel surface of the wind wheel 20, a first connection line is formed between the edge of the air inlet 102 close to the sealing section 111 and the central axis of the wind wheel 20, a second connection line is formed between the edge of the air outlet 103 close to the sealing section 111 and the central axis of the wind wheel 20, and an included angle between the first connection line and the second connection line is a central angle a corresponding to the sealing section 111 in this embodiment.
It will be appreciated that the spacing L1 between the inner wall of the volute 115 and the rotor 20 at the sealing section 111 and the spacing L2 between the inner wall of the volute 115 and the rotor 20 at the working section 112 should satisfy a certain size relationship to achieve the effect of guiding the airflow along the working section 112. If the distance L1 between the inner wall of the volute 115 and the wind wheel 20 at the sealing section 111 is too large, the sealing section 111 may not achieve the effect of sealing and isolating the air inlet 102 and the air outlet 103. In the present embodiment, the ratio of the distance L1 between the inner wall of the volute 115 and the rotor 20 at the sealing section 111 to the distance L2 between the inner wall of the volute 115 and the rotor 20 at the working section 112 is less than or equal to 0.5, and the distance L1 between the inner wall of the volute 115 and the rotor 20 at the sealing section 111 is less than or equal to 10 mm. Within this range, the airflow entering the fresh air duct 101 from the air inlet will flow along the working section 112 to the air outlet 103, and the wind wheel 20 can rotate smoothly in the volute 115. It should be noted that, the distance between the inner wall of the volute 115 and the rotor 20 at the sealing section 111 refers to the minimum clear distance between the outer edge of the rotor 20 and the inner wall of the volute 115 in the radial direction of the rotor 20.
The air in the outdoor environment usually carries impurities such as dust and bacteria, which is not good for the health of the user in the past. To this end, referring to fig. 3, in an embodiment, the fresh air module further includes a purifying device 30, and the purifying device 30 is disposed in the casing 10 for purifying the air flowing through the fresh air duct 101. It can be understood that the purification device 30 may be disposed in the fresh air duct 101, or disposed near the air inlet 102 or the air outlet 103 outside the fresh air duct 101, as long as the air flowing through the fresh air duct 101 can be purified. The structure of the purification device 30 can have various designs without limitation. Such as but not limited to: the purifying device 30 may be adapted to remove any one or more of dust, fine particulate matter, microorganisms, organic volatile gas such as formaldehyde, and other air pollutants in the air. The specific type of the purification device 30 can be selected according to its function, and the purification device 30 can be any one or combination of a common filter screen, a HEPA (high efficiency particulate air) screen, a formaldehyde remover and an IFD (internal-flow filtration device); and the filter screen can also be any one or combination of a plurality of primary filter screens, intermediate filter screens and high-efficiency filter screens. So, can realize purifying outdoor indoor new trend that flows in, be favorable to promoting the indoor air quality.
With reference to the first embodiment, it can be understood by those skilled in the art that in the fresh air state of the air conditioner, the wind wheel 20 rotates forward to drive the airflow from the outdoor to the indoor. At this time, the purification device 30 is required to work to realize the function of purifying the inflow air outside the room, so as to improve the quality of the indoor air. However, in the air-discharging state of the air conditioner, the wind wheel 20 rotates reversely, the driving airflow is discharged from the indoor to the outdoor, and the air flowing through the fresh air duct 101 does not need to be purified, and if the purifying device 30 keeps working in the air-discharging state, the wind resistance is large, the air-discharging speed is affected, the purifying device 30 itself has unnecessary work load, and the service life of the purifying device 30 is shortened. For this reason, in the present embodiment, please refer to fig. 7 to 9, the purifying device 30 has a first operating state and a second operating state, the purifying amount of the purifying device 30 in the first operating state is greater than the purifying amount in the second operating state, the fresh air module further includes a switching mechanism disposed in the housing 10, and the switching mechanism is configured to switch the purifying device 30 to the first operating state when the wind wheel 20 rotates forward and switch the purifying device 30 to the second operating state when the wind wheel 20 rotates backward.
In this embodiment, the purifying amount refers to an amount of air per unit time that the purifying device 30 effectively purifies the air flowing through the fresh air duct 101. It is understood that the switching mechanism may have various forms as long as it can achieve the change of the purifying amount of the purifying device 30. For the purification apparatus 30 requiring power supply such as an anion generator, an IFD filter, etc., the switching mechanism may be used to switch off or on the circuit devices of the purification apparatus 30 for changing the purification amount of the purification apparatus 30 in different operation states. For a filter screen type of purification device 30, the switching mechanism may have a mechanical structure for changing the structure of the air duct in the housing 10 or the position of the purification device 30 so that the air flow passes through or at least partially avoids the purification device 30, thereby achieving different purification amounts of the purification device 30 in different working states.
In this embodiment, when the air conditioner is in the new trend mode, wind wheel 20 corotation, switching mechanism switches purifier 30 to a working condition this moment for the air current through new trend wind channel 101 obtains sending into indoorly through new trend wind channel 101 after purifying, promotes indoor air quality. When the air conditioner is in the air exhaust mode, the wind wheel 20 rotates reversely, and the switching mechanism switches the purifying device 30 to the second working state, so that the purifying device 30 stops working or the contact surface with the airflow flowing to the air inlet 102 is reduced, so that the purifying device 30 stops working or at least partially reduces the purifying amount. So for under new trend mode and the mode of airing exhaust, purifier 30 has different working strength. When the purification is unnecessary, the purification work is stopped or the purification amount is at least partially reduced, thereby increasing the exhaust speed, reducing the purification strength of the purification apparatus 30, and prolonging the service life of the purification apparatus 30.
On the basis of the above embodiment, please refer to fig. 3 and fig. 10, an air intake channel 40 is further disposed in the housing 10, one end of the air intake channel 40 is disposed in a manner of abutting against the air inlet 102, the other end of the air intake channel 40 is used for communicating with the fresh air pipeline 41, and the purifying device 30 is disposed in the air intake channel 40. In this embodiment, the air intake passage 40 serves as a chamber in front of the fresh air passage and serves to communicate the fresh air duct 41 with the air inlet 102, so as to guide the air flow into the volute 115 from a proper direction. In this embodiment, the purifying device 30 purifies the air flow flowing to the fresh air duct 101, so that the wind wheel 20 is not affected by dust and impurities carried by the air in the outdoor environment during operation, and the service life of the wind wheel 20 is prolonged.
On the basis of the above embodiment, the purifying device 30 is configured as a screen plate structure, the purifying device 30 is openably and closably installed in the air inlet channel 40, in the first working state, the purifying device 30 covers the air inlet channel 40, in the second working state, the purifying device 30 opens the air inlet channel 40, and the switching mechanism is used for driving the purifying device 30 to move, so that the purifying device 30 is switched between the first working state and the second working state. In this embodiment, the switching mechanism is used to drive the purifying device 30 to open or cover the air inlet channel 40, so that the airflow flowing to the fresh air duct 101 is purified by the purifying device 30 or is purified away from the purifying device 30, thereby switching the purifying device 30 between the first operating state and the second operating state.
Further, referring to fig. 7 to 10, the purification device 30 is rotatably disposed on the housing 10, in a first working state, the purification device 30 is parallel to the air inlet 102, and in a second working state, the purification device 30 is perpendicular to the air inlet 102, and the switching mechanism is configured to drive the purification device 30 to rotate, so that the purification device 30 is switched between the first working state and the second working state. In this way, by rotatably installing the filter screen-shaped purification device 30 in the air intake duct 40 and driving the purification device 30 to rotate by the switching mechanism, the filter screen of the purification device 30 faces the airflow flowing toward the air intake port 102 or is parallel to the airflow flowing direction. Thus, the operating state of the purification apparatus 30 can be switched by a simple structure and driving method. Low cost, good reliability and easy installation and maintenance.
Specifically, please continue to refer to fig. 8 to 11, the purifying device 30 includes a first filter screen plate and a second filter screen plate, in a first working state, the ends of the first filter screen plate and the second filter screen plate are butted and arranged in a parallel manner to cover the air inlet channel 40, in a second working state, the first filter screen plate and the second filter screen plate are respectively perpendicular to the air inlet 102 to open the air inlet channel 40, the driving mechanism includes a first gear 51 and a second gear 52, and a motor 50 in driving connection with the first gear 51, the first gear 51 is connected with a rotating shaft of the first filter screen plate, the second gear 52 is connected with a rotating shaft of the second filter screen plate, and the first gear 51 is engaged with the second gear 52. In this embodiment, in a first working state, the first gear 51 and the second gear 52 are in a relative rotation position, so that the first filter screen plate 31 and the second filter screen plate 32 are both parallel to the air inlet 102, and the end portions of the first filter screen plate and the second filter screen plate are butted and arranged side by side to cover the ventilation channel, so that the airflow flowing to the air inlet 102 flows through the filter screen plates, and flows into the fresh air channel after being purified by the filter screen plates. In the second working state, the motor 50 drives the first gear 51 to rotate, and the second gear 52 is in meshed transmission with the first gear 51, so as to rotate under the driving of the first gear 51, so that the first screen plate 31 and the second screen plate 32 are rotated to a position which is spaced from each other and perpendicular to the air inlet 102. The direction of the screen plate is parallel to the direction of the airflow, so that most of the airflow passing through the air inlet duct 40 is not purified by the purifying device 30. In this way, the switching of the operating state of the purification apparatus 30 is achieved by a simple and small-sized structure.
The invention also provides a control method of the fresh air module, and particularly provides a control method of the fresh air module applied to the air conditioner in the embodiment.
In an embodiment, the fresh air module includes a housing 10 and a fan assembly, the housing 10 is provided with an air inlet 102, an air outlet 103, and a fresh air duct 101 communicating the air inlet 102 and the air outlet 103, the air inlet 102 is used for communicating a fresh air pipeline 41, the air outlet 103 is used for communicating indoor, the fan assembly includes a motor 50 and a wind wheel 20, the wind wheel 20 is disposed in the fresh air duct, the wind wheel 20 is configured to be capable of driving an air flow to flow into the fresh air duct 101 from the air inlet 102 and flow out from the air outlet 103 when rotating forward, and to flow into the fresh air duct 101 from the air outlet 103 and flow out from the air inlet 102 when rotating backward, the motor 50 is configured to be in driving connection with the wind wheel 20 to drive the wind wheel 20 to rotate forward or backward.
Referring to fig. 12, the method for controlling the fresh air module provided in this embodiment specifically includes the following steps:
s100: when the air conditioner is in a fresh air mode, the wind wheel 20 is controlled to rotate forwards;
in this step, the air conditioner is in a fresh air mode, requiring fresh air to be delivered from the outdoor environment to the room. At this time, the wind wheel 20 in the fresh air module rotates forward, the driving air flow flows into the fresh air duct 101 from the air inlet 102 communicated with the fresh air pipeline 41, and is blown to the indoor from the air outlet 103, so that fresh outdoor air is conveyed to the indoor, and the indoor air quality is improved.
S200: and when the air conditioner is in an air exhaust mode, controlling the wind wheel 20 to reversely rotate.
In this step, the air conditioner is in the mode of airing exhaust, and needs to discharge fresh air from the indoor to the outdoor environment. At this time, the wind wheel 20 in the fresh air module rotates forward, the driving air flow flows into the fresh air duct 101 through the air outlet 103 communicated with the fresh air pipeline 41, and is exhausted outdoors through the fresh air pipeline 41 through the air inlet 102, so that fresh outdoor air is conveyed indoors, and the indoor air quality is improved.
In this embodiment, there is no sequence between step S100 and step S200, depending on the operation mode of the air conditioner. The switching between the fresh air mode and the air exhaust mode of the air conditioner can be controlled by a user sending instruction, and can also be automatically controlled by the air conditioner according to the requirement. In the fresh air mode, the wind wheel 20 in the fresh air module is controlled to rotate forward, air flows along the directions of the air inlet 102, the fresh air duct 101 and the air outlet 103, and fresh outdoor air is conveyed indoors, so that the indoor air quality is improved. In the air exhaust mode, the wind wheel 20 in the fresh air module is controlled to rotate reversely, so that the air flow can be driven to flow along the directions of the air outlet 103, the fresh air duct 101 and the air inlet 102, and the indoor air is conveyed to the outdoor. So, new trend module in this embodiment can realize new trend and two kinds of functions of airing exhaust to only need a wind wheel 20 just positive and negative to change between new trend and airing exhaust to realize, need not to set up wind wheel 20 or wind channel in addition in order to air exhaust, make new trend module overall structure simpler, occupation space is little.
In another embodiment, the purifying device 30 has a first operating state and a second operating state, the purifying amount of the purifying device 30 in the first operating state is greater than the purifying amount in the second operating state, and the fresh air module further includes a switching mechanism disposed in the housing 10 for switching the purifying device 30 between the first operating state and the second operating state;
in this embodiment, please refer to fig. 13, the method for controlling the fresh air module further includes the following steps:
s100: when the air conditioner is in a fresh air mode, the wind wheel 20 is controlled to rotate forwards;
s101: controlling the switching mechanism so that the purification apparatus 30 is switched to the first operating state;
s: 200 when the air conditioner is in an exhaust mode, controlling the wind wheel 20 to reversely rotate;
s201: the switching mechanism is controlled so that the purification apparatus 30 is switched to the second operation state.
In this embodiment, there is no sequence between step S100 and step S200. When the air conditioner is in the fresh air mode, the wind wheel 20 rotates positively, and the switching mechanism switches the purifying device 30 to the first working state at the moment, so that the air flow flowing through the fresh air duct 101 is purified and then is sent into the room through the fresh air duct 101, and the indoor air quality is improved. When the air conditioner is in the air exhaust mode, the wind wheel 20 rotates reversely, and the switching mechanism switches the purifying device 30 to the second working state, so that the purifying device 30 stops working or the contact surface with the airflow flowing to the air inlet 102 is reduced, so that the purifying device 30 stops working or at least partially reduces the purifying amount. So for under new trend mode and the mode of airing exhaust, purifier 30 has different working strength. When the purification is unnecessary, the purification work is stopped or the purification amount is at least partially reduced, thereby increasing the exhaust speed, reducing the purification strength of the purification apparatus 30, and prolonging the service life of the purification apparatus 30.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (15)
1. A fresh air module, comprising:
the air conditioner comprises a shell, a fan and a fan, wherein the shell is provided with an air inlet, an air outlet and a fresh air duct which is communicated with the air inlet and the air outlet, the air inlet is used for communicating a fresh air pipeline, and the air outlet is used for communicating a room;
the fan assembly comprises a motor and a wind wheel, the wind wheel is arranged in the fresh air duct, the wind wheel is set to be capable of driving airflow to flow into the fresh air duct from the air inlet and flow out from the air outlet when rotating forwards, driving airflow to flow into the fresh air duct from the air outlet and flow out from the air inlet when rotating backwards, and the motor is used for being in driving connection with the wind wheel to drive the wind wheel to rotate forwards or reversely.
2. The fresh air module as claimed in claim 1, wherein the wind wheel is a vortex wind wheel, the housing includes a volute, the wind wheel is disposed in the volute, and the air inlet and the air outlet are disposed on a peripheral side of the volute.
3. The fresh air module as claimed in claim 2, wherein the inner wall of the volute is circumferentially disposed around the wind wheel to form a sealing section and a working section, a distance L1 between the sealing section and the wind wheel of the inner wall of the volute is smaller than a distance L2 between the working section and the wind wheel of the inner wall of the volute, and the air inlet, the sealing section, the air outlet and the working section are sequentially arranged along the circumferential direction of the volute.
4. The fresh air module as claimed in claim 3, wherein the sealing section has a corresponding central angle a of 10 ° or more and 90 ° or less.
5. The fresh air module as claimed in claim 4, wherein the sealing section has a central angle a of 20 ° or more and 30 ° or less.
6. The fresh air module as claimed in any one of claims 3 to 5, wherein a ratio of a spacing L1 between the sealing section and the wind wheel of the inner wall of the volute to a spacing L2 between the working section and the wind wheel of the inner wall of the volute is less than or equal to 0.5, and a spacing L1 between the sealing section and the wind wheel of the inner wall of the volute is less than or equal to 10 mm.
7. The fresh air module as claimed in claim 1, further comprising a purification device disposed in the housing for purifying air flowing through the fresh air duct.
8. The fresh air module as claimed in claim 7, wherein the purification device has a first operating state and a second operating state, the purification amount of the purification device in the first operating state is greater than the purification amount in the second operating state, the fresh air module further comprises a switching mechanism disposed in the housing, and the switching mechanism is configured to switch the purification device to the first operating state when the wind wheel rotates forward and to switch the purification device to the second operating state when the wind wheel rotates backward.
9. The fresh air module as claimed in claim 8, wherein an air inlet channel is further disposed in the housing, one end of the air inlet channel is connected to the air inlet, the other end of the air inlet channel is used for communicating with the fresh air pipeline, and the purification device is disposed in the air inlet channel.
10. The fresh air module as claimed in claim 9, wherein the purification device is configured as a screen plate structure, the purification device is openably and closably installed in the air inlet channel, in the first operating state, the purification device covers the air inlet channel, in the second operating state, the purification device opens the air inlet channel, and the switching mechanism is configured to drive the purification device to move, so that the purification device is switched between the first operating state and the second operating state.
11. The fresh air module as claimed in claim 10, wherein the purification device is rotatably disposed in the housing, and in the first operating state, the purification device is parallel to the air inlet, and in the second operating state, the purification device is perpendicular to the air inlet, and the switching mechanism is configured to drive the purification device to rotate, so that the purification device is switched between the first operating state and the second operating state.
12. The fresh air module as claimed in claim 11, wherein the purification device comprises a first filter screen plate and a second filter screen plate, in the first operating state, the ends of the first filter screen plate and the second filter screen plate are butted and arranged in a parallel manner to cover the air inlet channel, in the second operating state, the first filter screen plate and the second filter screen plate are respectively perpendicular to the air inlet to open the air inlet channel, the driving mechanism comprises a first gear and a second gear, and a motor in driving connection with the first gear, the first gear is connected with a rotating shaft of the first filter screen plate, the second gear is connected with a rotating shaft of the second filter screen plate, and the first gear is engaged with the second gear.
13. An air conditioner comprising a fresh air module as claimed in any one of claims 1 to 12.
14. A method for controlling a fresh air module according to any one of claims 1 to 12, comprising the steps of:
when the air conditioner is in a fresh air mode, the wind wheel is controlled to rotate forwards;
and when the air conditioner is in an air exhaust mode, controlling the wind wheel to rotate reversely.
15. The method for controlling the fresh air module according to claim 14, wherein the fresh air module includes a purifying device disposed in the housing for purifying air flowing through the fresh air duct;
the fresh air module further comprises a switching mechanism which is arranged on the shell and used for switching the purifying device between the first working state and the second working state;
when the air conditioner is in the new trend mode, control after the step of wind wheel corotation, still include:
controlling the switching mechanism to switch the purification device to the first working state;
after the step of controlling the wind wheel to rotate reversely when the air conditioner is in the air exhaust mode, the method further comprises the following steps:
and controlling the switching mechanism to switch the purification device to the second working state.
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| CN202010701962.5A CN111735109A (en) | 2020-07-20 | 2020-07-20 | Fresh air module, air conditioner and control method of fresh air module |
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| CN202010701962.5A CN111735109A (en) | 2020-07-20 | 2020-07-20 | Fresh air module, air conditioner and control method of fresh air module |
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| CN112344512A (en) * | 2020-10-27 | 2021-02-09 | 海信（山东）空调有限公司 | Fresh air control method of air conditioner |
| CN112413737A (en) * | 2020-11-26 | 2021-02-26 | 珠海格力电器股份有限公司 | Fresh air conditioner and control method thereof |
| CN112539473A (en) * | 2020-11-23 | 2021-03-23 | 青岛海尔空调器有限总公司 | Fresh air conditioner indoor unit and air guide control method thereof |
| CN115013953A (en) * | 2022-06-17 | 2022-09-06 | 宁波奥克斯电气股份有限公司 | Control method and control device of fresh air conditioner and air conditioner |
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