CN114543178A - Air conditioner indoor unit and air conditioner - Google Patents

Air conditioner indoor unit and air conditioner Download PDF

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Publication number
CN114543178A
CN114543178A CN202011366747.0A CN202011366747A CN114543178A CN 114543178 A CN114543178 A CN 114543178A CN 202011366747 A CN202011366747 A CN 202011366747A CN 114543178 A CN114543178 A CN 114543178A
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CN
China
Prior art keywords
air
air inlet
indoor unit
opening
outlet
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Pending
Application number
CN202011366747.0A
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Chinese (zh)
Inventor
李宝华
张卫东
孙泽成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
Original Assignee
Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
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Publication date
Application filed by Midea Group Co Ltd, GD Midea Air Conditioning Equipment Co Ltd filed Critical Midea Group Co Ltd
Priority to CN202011366747.0A priority Critical patent/CN114543178A/en
Publication of CN114543178A publication Critical patent/CN114543178A/en
Pending legal-status Critical Current

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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
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
    • 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
    • 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
    • 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
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)

Abstract

The invention discloses an air conditioner indoor unit and an air conditioner, wherein the air conditioner indoor unit comprises: the shell is provided with a first air inlet, a second air inlet, an air outlet and an air duct, and the first air inlet, the second air inlet and the air outlet are communicated with the air duct; the volute is arranged in the air duct and provided with a first air inlet opening, a second air inlet opening and an air outlet opening, the first air inlet opening is communicated with the first air inlet, the second air inlet opening is communicated with the second air inlet, and the air outlet opening is communicated with the air outlet; the heat exchanger is arranged between the first air inlet and the first air inlet opening; the purification assembly is arranged between the second air inlet and the second air inlet opening; and the fan is arranged in the volute and used for driving airflow to flow from the first air inlet to the air outlet and driving airflow to flow from the second air inlet to the air outlet. The air-conditioning indoor unit simplifies the internal structure of the air-conditioning indoor unit and reduces the noise when the purification function and the heat exchange function are both started.

Description

Air conditioner indoor unit and air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner indoor unit and an air conditioner.
Background
In the related art, the heat exchange function and the sterilization function of the indoor unit of the air conditioner are respectively arranged in two mutually independent air channels, so that the integral operation noise is increased when the two functions are operated simultaneously.
Disclosure of Invention
The invention mainly aims to provide an air conditioner indoor unit and aims to solve the technical problem of how to reduce the noise of the air conditioner indoor unit.
In order to achieve the above object, an indoor unit of an air conditioner according to the present invention includes:
the air conditioner comprises a shell, a first air inlet, a second air inlet, an air outlet and an air channel, wherein the first air inlet, the second air inlet and the air outlet are all communicated with the air channel;
the volute is arranged in the air duct and is provided with a first air inlet opening, a second air inlet opening and an air outlet opening, the first air inlet opening is communicated with the first air inlet, the second air inlet opening is communicated with the second air inlet, and the air outlet opening is communicated with the air outlet;
the heat exchanger is arranged between the first air inlet and the first air inlet opening;
the purification assembly is arranged between the second air inlet and the second air inlet opening;
and the fan is arranged in the volute and used for driving airflow to flow from the first air inlet to the air outlet and driving airflow to flow from the second air inlet to the air outlet.
Optionally, the indoor unit of air conditioner further comprises a first air door and a second air door, the first air door is used for adjusting the opening degree of the first air inlet opening, and the second air door is used for adjusting the opening degree of the second air inlet opening.
Optionally, the fan is a centrifugal fan, and the first air inlet opening and the second air inlet opening are respectively arranged on two opposite side walls of the volute.
Optionally, the number of the volutes is two, the two volutes are arranged in the air duct in parallel along the air inlet direction, and the blower is arranged in each volute.
Optionally, the casing is further provided with a fresh air inlet communicated with the air duct, the volute is provided with an overflowing channel, and the overflowing channel is communicated with the fresh air inlet and the air inlet side of the fan.
Optionally, the indoor unit of the air conditioner further comprises a third air door movably arranged in the air duct and used for shielding or avoiding the overflowing channel.
Optionally, the volute is further provided with an air outlet communicated with the fresh air inlet, and the fan is further used for driving airflow to flow from the first air inlet to the air outlet.
Optionally, the third air door is arranged at the air outlet, the third air door is closed when the overflow channel is avoided, and the air outlet is opened when the overflow channel is shielded.
Optionally, the indoor unit of the air conditioner further comprises a filter screen movably arranged in the air duct and used for shielding or avoiding the overflowing channel.
Optionally, the indoor unit of the air conditioner further includes an air deflector movably disposed at the air outlet to open or close the air outlet.
Optionally, the number of the volutes is two, the two volutes are arranged in the air duct in parallel along the air inlet direction, the fan is arranged in each volute, the overflowing channel is formed in each volute, and each overflowing channel is communicated with the fresh air inlet.
Optionally, the indoor unit of the air conditioner further comprises a valve movably arranged at the fresh air inlet, the valve divides the fresh air inlet into a first overfire air area and a second overfire air area which are respectively communicated with the two overfire channels, and the valve is used for adjusting the opening degrees of the first overfire air area and the second overfire air area.
The invention also provides an air conditioner, which comprises an air conditioner outdoor unit and an air conditioner indoor unit, wherein the air conditioner indoor unit comprises: the air conditioner comprises a shell, a first air inlet, a second air inlet, an air outlet and an air channel, wherein the first air inlet, the second air inlet and the air outlet are all communicated with the air channel; the volute is arranged in the air duct and is provided with a first air inlet opening, a second air inlet opening and an air outlet opening, the first air inlet opening is communicated with the first air inlet, the second air inlet opening is communicated with the second air inlet, and the air outlet opening is communicated with the air outlet; the heat exchanger is arranged between the first air inlet and the first air inlet opening; the purification assembly is arranged between the second air inlet and the second air inlet opening; and the fan is arranged in the volute and used for driving airflow to flow from the first air inlet to the air outlet and driving airflow to flow from the second air inlet to the air outlet.
The air-conditioning indoor unit is provided with the two air inlets, and the heat exchanger and the purification assembly are respectively arranged corresponding to the two air inlets, so that the air-conditioning indoor unit has both the heat exchange and temperature regulation functions and the purification functions.
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 structural view of an indoor unit of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an indoor unit of an air conditioner according to another embodiment of the present invention;
FIG. 3 is an exploded view of an air conditioning indoor unit according to an embodiment of the present invention;
FIG. 4 is a schematic view of an internal structure of an indoor unit of an air conditioner according to an embodiment of the present invention;
FIG. 5 is a schematic view of an internal structure of an indoor unit of an air conditioner according to another embodiment of the present invention;
FIG. 6 is a schematic view of an internal structure of an indoor unit of an air conditioner according to another embodiment of the present invention;
FIG. 7 is a schematic back view of an indoor unit of an air conditioner according to an embodiment of the present invention;
FIG. 8 is a schematic back view of an indoor unit of an air conditioner according to another embodiment of the present invention;
fig. 9 is a schematic back structure view of an indoor unit of an air conditioner according to another embodiment of the present invention;
fig. 10 is an exploded view of another embodiment of an indoor unit of an air conditioner according to the present invention.
The reference numbers illustrate:
Figure BDA0002802624940000031
Figure BDA0002802624940000041
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
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
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 the A or B arrangement, or both A and B satisfied arrangement. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides an indoor unit of an air conditioner, which can be selected as a wall-mounted indoor unit of the air conditioner, a floor type indoor unit of the air conditioner or a vertical indoor unit of the air conditioner and the like; the present invention is described by taking a wall-mounted air conditioner indoor unit as an example, but the present invention is not limited thereto.
In an embodiment of the present invention, as shown in fig. 1 to 10, an indoor unit of an air conditioner includes: the air conditioner comprises a shell 10, a first air inlet 11, a second air inlet 12, an air outlet 13 and an air duct, wherein the first air inlet 11, the second air inlet 12 and the air outlet 13 are all communicated with the air duct; the volute casing 20 is arranged in the air duct, the volute casing 20 is provided with a first air inlet opening 21, a second air inlet opening 22 and an air outlet opening 23, the first air inlet opening 21 is communicated with the first air inlet 11, the second air inlet opening 22 is communicated with the second air inlet 12, and the air outlet opening 23 is communicated with the air outlet 13; the heat exchanger 30 is arranged between the first air inlet 11 and the first air inlet opening 21; the purification assembly 40 is arranged between the second air inlet 12 and the second air inlet opening 22; and the fan 50 is arranged in the volute 20, and the fan 50 is used for driving the airflow to flow from the first air inlet 11 to the air outlet 13 and driving the airflow to flow from the second air inlet 12 to the air outlet 13.
In this embodiment, the first air inlet 11 and the second air inlet 12 may be adjacent or opposite to each other, and may be disposed on the same side wall, two adjacent side walls, or two opposite side walls of the housing 10, which is not limited herein. The air duct is communicated with the first air inlet 11 and the air outlet 13, and is also communicated with the second air inlet 12 and the air outlet 13; the volute 20 is used for installing the fan 50, the first air inlet opening 21 faces the first air inlet 11, the second air inlet opening 22 faces the second air inlet 12, and the air outlet opening 23 faces the air outlet 13. Under the driving of the fan 50, the airflow flowing into the air duct from the first air inlet 11 will flow into the volute 20 through the first air inlet opening 21, and then flow to the air outlet 13 through the air outlet opening 23; the air flowing into the air duct from the second air inlet 12 flows into the volute 20 from the second air inlet opening 22, and then flows to the air outlet 13 through the air outlet opening 23. The air flows from the first air inlet 11 and the second air inlet 12 into the air duct share the inner space of the volute 20 before flowing through the air outlet 13, so that the volume of the air duct can be reduced, and the occupied space of the housing 10 can be reduced.
The heat exchanger 30 is used for exchanging heat with air flowing through to realize cooling or heating, namely, to realize temperature adjustment of the air; the heat exchanger 30 is located between the first air inlet 11 and the first air inlet opening 21, so that the air flow entering the air duct from the first air inlet 11 is temperature-regulated, and flows into the scroll casing 20 and then blows out from the air outlet 13. The purification component 40 is used for purifying and filtering air, such as removing dust, formaldehyde, ozone, disinfection, sterilization and the like, so as to improve the air cleanliness; the cleaning assembly 40 is located between the second air inlet 12 and the second air inlet opening 22, so that the air flow entering the air duct from the second air inlet 12 can be effectively cleaned, and then flows into the scroll casing 20 and then blows out from the air outlet 13. Because the air flows in the heat exchange process and the purification process are driven by the same fan 50 and share the space in the volute 20, the internal structure of the indoor unit of the air conditioner is simplified, and the noise in the operation process of the indoor unit of the air conditioner can be reduced.
The air-conditioning indoor unit is provided with the two air inlets, and the heat exchanger 30 and the purification assembly 40 are respectively arranged corresponding to the two air inlets, so that the air-conditioning indoor unit has both the heat exchange and temperature regulation functions and the purification functions, and because the purified airflow and the heat exchange airflow are driven by the same fan 50 and are blown out from the same air outlet 13, the internal structure of the air-conditioning indoor unit is simplified, and the noise generated when the purification function and the heat exchange function are both started is reduced.
As shown in fig. 5 and 6, the indoor unit of the air conditioner further includes a first damper 60 and a second damper 70, where the first damper 60 is used to adjust the opening of the first air inlet opening 21, and the second damper 70 is used to adjust the opening of the second air inlet opening 22. In the present embodiment, the first damper 60 can adjust the opening degree of the first air intake opening 21 to zero, i.e., to be fully closed, and also to be fully open; the function of the second damper 70 is the same. The indoor unit of the air conditioner can only run in a heat exchange mode by adjusting the opening degrees of the first air inlet opening 21 and the second air inlet opening 22, namely, the first air inlet opening 21 is opened and the second air inlet opening 22 is closed; it is also possible to operate only the purification mode, i.e. open the second air inlet opening 22, close the first air inlet opening 21; the heat exchange mode and the purification mode can be operated simultaneously with different air volumes, for example, the opening degree of the first air inlet opening 21 is larger than that of the second air inlet opening 22. From this, the user can adjust two air inlet open-ended apertures according to actual demand, has improved the functional diversity of air conditioning indoor set.
Specifically, the fan 50 is a centrifugal fan 50, and the first air inlet opening 21 and the second air inlet opening 22 are respectively disposed on two opposite sidewalls of the volute 20. In this embodiment, the driving direction of the centrifugal fan 50 to the air flow is axial air inlet and circumferential air outlet, and the air flow can be sucked from both ends of the centrifugal fan 50 in the axial direction and then blown out from the circumferential side. The two air inlet sides of the centrifugal fan 50 face the two air inlet openings, respectively. In practical applications, the first air inlet 11 and the second air inlet 12 may be opened at the top and the bottom of the housing 10, respectively, and the air outlet 13 may be opened at the front panel of the housing 10; the first air inlet opening 21 and the second air inlet opening 22 can be opened at the top and the bottom of the volute 20 respectively, and the air outlet opening 23 can be opened at the front side wall of the volute 20, so that the indoor unit of the air conditioner can form an airflow path for top and bottom air inlet and front air outlet.
As shown in fig. 3 and 4, the number of the volutes 20 is two, the two volutes 20 are arranged in parallel in the air duct along the air inlet direction, and the fan 50 is arranged in each volute 20. In the present embodiment, the two volutes 20 are located at the parallel position in the air intake direction, not at the upstream and downstream positions, so that the air flow flowing in from the first air inlet 11 and the second air inlet 12 flows partially to one volute 20, and the other flows partially to the other volute. The fans 50 are arranged in the two volutes 20, so that the air supply quantity of the indoor unit of the air conditioner can be improved. In combination with the above embodiments of the first damper 60 and the second damper 70, the first damper 60 and the second damper 70 are disposed on both volutes 20, so that when the cleaning mode and the heat exchange mode are performed simultaneously, the first damper 60 of one volute 20 and the second damper 70 of the other volute 20 can be opened, thereby reducing the mutual influence between the heat exchange airflow and the cleaning airflow and improving the airflow fluency.
As shown in fig. 3 and 7, the casing 10 is further provided with a fresh air opening 14 communicated with the air duct, and the volute 20 is provided with an overflowing channel which communicates the fresh air opening 14 with the air inlet side of the fan 50. In this embodiment, the fresh air inlet 14 is used to communicate with the outdoor air through the wall hole, and the fresh air inlet 14 may be opened on the back plate of the casing 10 to be closer to the wall hole, and simultaneously, the fresh air inlet 14 is hidden. Outdoor fresh air can enter the air channel from the fresh air inlet 14, then flows to the first air inlet opening 21 through the flow channel, and finally is blown out from the air outlet 13 to update the indoor air. With reference to the above embodiments of the first air door 60 and the second air door 70, it should be noted that when the first air door 60 and the second air door 70 close the first air inlet opening 21 and the second air inlet opening 22, the air flow between the first air inlet 11 and the first air inlet opening 21 is only blocked, and the flow of fresh air to the air inlet side of the fan 50 through the flow passage is not affected; therefore, when fresh air is introduced, the first damper 60 and the second damper 70 may be closed to improve the efficiency of introduction of fresh air.
As shown in fig. 7, the indoor unit of an air conditioner further includes a third damper 80 movably disposed in the air duct for shielding or avoiding the overflow channel. The third air door 80 can be movably matched with the volute 20, the overflowing channel can be formed above the air inlet side of the fan 50, and the third air door 80 can shield the overflowing channel when moving to protrude out of the top of the fan 50, so that outdoor fresh air can be prevented from entering. In the heat exchange mode or the purification mode of the indoor unit of the air conditioner, the third air door 80 can shield the overflowing channel, so that fresh air is prevented from influencing heat exchange airflow or purified airflow.
As shown in fig. 7, the volute 20 is further provided with an exhaust outlet 15 communicated with the fresh air inlet 14, and the fan 50 is further configured to drive the airflow to flow from the first air inlet 11 to the exhaust outlet 15. In this embodiment, the air outlet 15 is located on the air outlet side of the fan 50, the indoor air can enter the volute 20 from the first air inlet 11 and then flow from the air outlet 15 to the fresh air inlet 14, and the air outlet 15 can be opposite to the fresh air inlet 14, so as to reduce the flow path of the air flow for air exhaust and improve the air exhaust efficiency. It is understood that the fan 50 is also used to drive the air flow from the second air inlet 12 to the air outlet 15, but the air resistance of the purification assembly 40 is larger than that of the heat exchanger 30, so the indoor air flow mainly enters the volute 20 from the first air inlet 11 corresponding to the heat exchanger 30.
In combination with the above-mentioned embodiment of the third air door 80, in the air discharging process, the third air door 80 should shield the flow passage, so as to prevent the fan 50 from generating suction force on the air flow at the fresh air inlet 14, which causes the air flow at the fresh air inlet 14 to be disordered. In practical application, as shown in fig. 3, the indoor unit of an air conditioner further includes an air deflector 100 movably disposed at the air outlet 13 to open or close the air outlet 13. During the air exhaust process, the air deflector 100 closes the air outlet 13 to allow the air flow to flow toward the air outlet 13, so that the air flow mainly flows toward the air outlet 15 and is exhausted from the fresh air inlet 14.
As shown in fig. 7 and 8, the third damper 80 is disposed at the air outlet 15, the third damper 80 closes the air outlet 15 when avoiding the overflowing passage, and opens the air outlet 15 when blocking the overflowing passage. In this embodiment, the overflowing passage and the air outlet 15 are both located on the moving track of the third damper 80, and the third damper 80 can selectively open the overflowing passage or the air outlet 15; in the fresh air mode, the third air door 80 opens the overflowing channel and closes the air outlet 15 at the same time, and in the air exhaust mode, the third air door 80 closes the overflowing channel and opens the air outlet 15 at the same time, so that the air exhaust mode and the fresh air mode can be switched by only controlling one air door, and the internal structure of the indoor unit of the air conditioner is simplified.
As shown in fig. 7 and 8, the indoor unit of an air conditioner further includes a filter screen 90 movably disposed in the air duct to shield or avoid the overflowing channel. In this embodiment, the filter screen 90 is mounted in the housing 10 by a bracket, and the filter screen 90 and the bracket are movably matched to enter the flow passage in the fresh air mode and exit the flow passage in the exhaust mode. In the fresh air mode, the filter screen 90 can filter harmful components in fresh air, such as formaldehyde, particulate matters and the like, and the air outlet 15 is adjacent to the overflowing channel, so that the filter screen 90 can shield the air outlet 15; in the air exhaust mode, the filter screen 90 exits the flow passage, i.e., is far away from the air outlet 15, so as to reduce the resistance in the air exhaust process and improve the air exhaust efficiency. The volute 20 can be provided with a chute corresponding to the filter screen 90, and a user can disassemble and assemble the filter screen 90 from the groove opening of the chute, so that the filter screen 90 can be conveniently replaced or disassembled and washed.
In combination with the above-mentioned embodiment in which the number of the volutes 20 and the fans 50 is two, each of the volutes 20 is formed with the flow passage, and each of the flow passages is communicated with the fresh air opening 14. The fresh air flowing into the casing 10 from the fresh air inlet 14 can flow to the two volutes 20 through the two flow passages. Specifically, as shown in fig. 7 to 9, the indoor unit of an air conditioner further includes a valve 110 movably disposed at the fresh air inlet 14, the valve 110 divides the fresh air inlet 14 into a first air passing area 141 and a second air passing area 142 respectively communicated with the two flow passage, and the valve 110 is configured to adjust the opening degrees of the first air passing area 141 and the second air passing area 142. The valve 110 simultaneously adjusts the opening degrees of the first air passing region 141 and the second air passing region 142, and the opening degrees of the first air passing region 141 and the second air passing region 142 are in negative correlation under the action of the valve 110. Through the combined use of the valve 110 and the first damper 60 and the second damper 70, one of the volutes 20 and the fan 50 can be in a purification mode or a heat exchange mode, and the other volute 20 and the fan 50 can be in a fresh air mode, so that the indoor unit of the air conditioner can simultaneously realize multiple functions, and further meet the diversified demands of users.
The present invention further provides an air conditioner, which includes an outdoor unit and an indoor unit, and the specific structure of the indoor unit of the air conditioner refers to the above embodiments. The air conditioner outdoor unit is connected with the air conditioner indoor unit through a refrigerant pipe.
The above description is only an alternative embodiment of the present invention, and 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 (13)

1. An indoor unit of an air conditioner, comprising:
the air conditioner comprises a shell, a first air inlet, a second air inlet, an air outlet and an air channel, wherein the first air inlet, the second air inlet and the air outlet are all communicated with the air channel;
the volute is arranged in the air duct and is provided with a first air inlet opening, a second air inlet opening and an air outlet opening, the first air inlet opening is communicated with the first air inlet, the second air inlet opening is communicated with the second air inlet, and the air outlet opening is communicated with the air outlet;
the heat exchanger is arranged between the first air inlet and the first air inlet opening;
the purification assembly is arranged between the second air inlet and the second air inlet opening;
and the fan is arranged in the volute and used for driving airflow to flow from the first air inlet to the air outlet and driving airflow to flow from the second air inlet to the air outlet.
2. The indoor unit of claim 1, further comprising a first damper for adjusting an opening degree of the first air inlet opening and a second damper for adjusting an opening degree of the second air inlet opening.
3. The indoor unit of claim 2, wherein the fan is a centrifugal fan, and the first and second air inlet openings are respectively disposed on two opposite sidewalls of the scroll casing.
4. The indoor unit of an air conditioner according to any one of claims 1 to 3, wherein the number of the spiral cases is two, two spiral cases are provided in parallel in the air duct along an air intake direction, and the fan is provided in each spiral case.
5. An indoor unit of an air conditioner as claimed in any one of claims 1 to 3, wherein the casing is further provided with a fresh air inlet communicated with the air duct, and the volute is formed with an overflow passage communicating the fresh air inlet with an air inlet side of the fan.
6. The indoor unit of claim 5, further comprising a third damper movably disposed in the air duct to block or prevent the flow passage.
7. The indoor unit of claim 6, wherein the scroll casing further defines an air outlet communicating with the fresh air inlet, and the fan is further configured to drive an airflow from the first air inlet to the air outlet.
8. The indoor unit of claim 7, wherein the third damper is provided at the air outlet, and closes the air outlet when the third damper is out of the overflow path, and opens the air outlet when the overflow path is blocked.
9. The indoor unit of claim 7, further comprising a filter screen movably disposed in the air duct to block or prevent the flow passage.
10. The indoor unit of claim 7, further comprising an air deflector movably disposed at the air outlet to open or close the air outlet.
11. The indoor unit of an air conditioner as claimed in claim 5, wherein the number of the volutes is two, two volutes are arranged in parallel in the air duct along the air intake direction, the fan is arranged in each volute, the overflowing passage is formed in each volute, and each overflowing passage is communicated with the fresh air inlet.
12. The indoor unit of claim 11, further comprising a valve movably disposed at the fresh air inlet, wherein the valve divides the fresh air inlet into a first air passing region and a second air passing region respectively communicated with the two flow passing channels, and the valve is configured to adjust openings of the first air passing region and the second air passing region.
13. An air conditioner comprising an outdoor unit and the indoor unit of any one of claims 1 to 12.
CN202011366747.0A 2020-11-26 2020-11-26 Air conditioner indoor unit and air conditioner Pending CN114543178A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011366747.0A CN114543178A (en) 2020-11-26 2020-11-26 Air conditioner indoor unit and air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011366747.0A CN114543178A (en) 2020-11-26 2020-11-26 Air conditioner indoor unit and air conditioner

Publications (1)

Publication Number Publication Date
CN114543178A true CN114543178A (en) 2022-05-27

Family

ID=81668196

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011366747.0A Pending CN114543178A (en) 2020-11-26 2020-11-26 Air conditioner indoor unit and air conditioner

Country Status (1)

Country Link
CN (1) CN114543178A (en)

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