CN108413497B - Indoor unit of cabinet air conditioner - Google Patents
Indoor unit of cabinet air conditioner Download PDFInfo
- Publication number
- CN108413497B CN108413497B CN201810316922.1A CN201810316922A CN108413497B CN 108413497 B CN108413497 B CN 108413497B CN 201810316922 A CN201810316922 A CN 201810316922A CN 108413497 B CN108413497 B CN 108413497B
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- Prior art keywords
- air
- indoor unit
- cabinet
- fan
- centrifugal fan
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- 239000003570 air Substances 0.000 claims abstract description 325
- 239000012080 ambient air Substances 0.000 claims abstract description 36
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 238000007664 blowing Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 24
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 206010025482 malaise Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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
- F24F1/0018—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
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
-
- 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
- F24F13/04—Air-mixing units
-
- 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
- F24F13/30—Arrangement or mounting of 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
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
The invention provides an indoor unit of a cabinet air conditioner. The cabinet air conditioner indoor unit comprises a cabinet provided with a cabinet air inlet and at least one cabinet air outlet, an air supply assembly arranged in the cabinet, and an indoor heat exchanger arranged on an air inlet flow path between the cabinet air inlet and at least one centrifugal fan. The air supply assembly includes at least one centrifugal fan configured to draw in ambient air from the ambient environment of the enclosure air intake and to cause the ambient air to flow toward the at least one enclosure air outlet, respectively. The cabinet air conditioner indoor unit is provided with at least one mixed flow air duct, and each mixed flow air duct is configured to suck ambient air to the front side of the shell and mix the ambient air with heat exchange air blown out from an air outlet of the shell to form cool, non-cool, hot and non-dry mixed gas, so that the wind sensing experience of a user is improved.
Description
Technical Field
The invention relates to the field of air conditioning, in particular to an indoor unit of a cabinet air conditioner.
Background
In the prior art, the cabinet air conditioner indoor unit adopting the centrifugal fan for air supply is mainly arranged on the upper part of the cabinet air conditioner, so that the air outlet area is small, and the air outlet area corresponds to the head of a human body and the space position above the head. When the cabinet is in a refrigerating state, the cold air flow directly blows the user, so that the discomfort of the user is caused, and the user experience is influenced. In the existing cabinet machine, the centrifugal fan is fixed in a mode that the centrifugal fan is directly fixedly connected with the cabinet machine shell through the volute, or the fan is supported by a support fixedly connected with the bottom plate of the cabinet machine shell through the support arranged below the centrifugal fan, and the fan can generate larger vibration noise in the working process, so that the user experience is poor. In view of the comprehensive consideration, there is a need in design for an air supply assembly capable of supplying air in a partitioned manner and having low vibration noise when a fan is operated, and a cabinet air conditioner indoor unit having the air supply assembly.
Disclosure of Invention
An object of the present invention is to provide a cabinet air conditioner indoor unit that blows air cool without cooling, hot without drying.
A further object of the present invention is to provide a cabinet air conditioner indoor unit that can partition the supply of air.
Another further object of the present invention is to improve the stability of a centrifugal fan and reduce vibration noise.
In particular, the present invention provides a cabinet air conditioner indoor unit comprising:
the shell is provided with a shell air inlet and at least one shell air outlet;
the air supply assembly comprises at least one centrifugal fan, is arranged in the shell, and is configured to suck ambient air from the surrounding environment of the shell air inlet and promote the ambient air to flow to the at least one shell air outlet respectively; and
the indoor heat exchanger is arranged on an air inlet flow path between the shell air inlet and at least one centrifugal fan, so that the ambient air entering through the shell air inlet exchanges heat with the indoor heat exchanger; it is characterized in that the method comprises the steps of,
the cabinet air conditioner indoor unit is provided with at least one mixed flow air duct, and each mixed flow air duct is configured to suck ambient air to the front side of the cabinet and mix the ambient air with heat exchange air blown out from one air outlet of the cabinet, so that the wind sensing experience of a user is improved.
Optionally, each mixed flow air duct is arranged to extend from back to front towards a centrifugal fan blowing air flow towards the corresponding shell air outlet, so that the ambient air and the heat exchange air are fully mixed at the front side of the shell.
Optionally, the mixed flow air duct is configured to taper from back to front so that ambient air flows to the front side of the housing through the mixed flow air duct.
Optionally, the centrifugal fans are two in number and are arranged to be mirror-symmetrical about an imaginary horizontal plane;
the casing air outlet comprises an upper air outlet and a lower air outlet positioned below the upper air outlet, and the two centrifugal fans are configured to respectively convey air flow to the upper air outlet and the lower air outlet.
Optionally, the two centrifugal fans are configured to:
when the indoor heat exchanger is in a heating state, the lower centrifugal fan is started, and the upper centrifugal fan is closed or the impeller rotating speed of the upper centrifugal fan is reduced;
when the indoor heat exchanger is in a refrigerating state, the upper centrifugal fan is started, and the lower centrifugal fan is closed or the impeller rotating speed of the lower centrifugal fan is reduced.
Optionally, the number of the mixed flow air channels is one; and is also provided with
The mixed flow duct is configured to suck ambient air to the front side of the cabinet and mix with heat exchange air blown out from the upper air outlet to form a cool and uncooled mixed air.
Optionally, the number of the mixed flow air channels is two; and is also provided with
The two mixed flow air channels are configured to suck ambient air to the front side of the casing and mix with heat exchange air blown out from the upper air outlet and the lower air outlet, respectively.
Optionally, the air supply assembly further includes:
the fan bracket is formed by encircling four opposite circumferential side plates in pairs and two longitudinal end plates which are respectively combined with the longitudinal two ends of the four circumferential side plates at the circumferential end parts, and the two centrifugal fans are arranged in an accommodating space defined by the fan bracket.
Optionally, the cabinet air conditioner indoor unit further includes:
the fan support is fixedly connected with the centrifugal fan, and the fan support is fixedly connected with the centrifugal fan.
Optionally, the air supply assembly further includes:
the air inlets of the two air guide channels are respectively arranged to be in butt joint with the air outlets of the two centrifugal fans and extend forwards in an arc shape in the direction deviating from the imaginary horizontal plane so as to respectively receive air flows from the two centrifugal fans and guide the air flows to the upper air outlet and the lower air outlet.
The cabinet air conditioner indoor unit is provided with the mixed flow air duct, when the centrifugal fan blows heat exchange air flow forwards and forms negative pressure around the air flow, the ambient air at the rear side and/or the lateral sides of the rear side of the cabinet is sucked to the front side of the cabinet and mixed with the heat exchange air, so that cool, non-cool, hot and non-dry mixed air is formed, and the wind sensing experience of a user is improved.
Furthermore, by arranging the two centrifugal fans distributed along the vertical direction in the shell, only the lower centrifugal fan can work when the indoor heat exchanger heats, and only the upper centrifugal fan can work when the indoor heat exchanger cools, so that the cooling and heating efficiency is improved, the indoor temperature is more uniform, and the comfort level of a user is improved.
Furthermore, the two centrifugal fans are all contained in the containing space defined by the fan support, and the centrifugal fans and the fan support form an integrated assembly, so that compared with the prior art that a plurality of centrifugal fans are fixedly connected through sheet metal parts, the air supply assembly is more stable and reliable, and vibration noise generated in the working process of the air supply assembly can be effectively reduced.
The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:
fig. 1 is a schematic block diagram of an indoor unit of a cabinet air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of the indoor unit of the cabinet air conditioner shown in fig. 1;
FIG. 3 is a schematic exploded view of the indoor unit of the cabinet air conditioner shown in FIG. 1;
fig. 4 is a schematic structural view of an indoor unit of a cabinet air conditioner according to another embodiment of the present invention;
fig. 5 is a schematic cross-sectional view of the indoor unit of the cabinet air conditioner shown in fig. 4;
fig. 6 is a schematic exploded view of the indoor unit of the cabinet air conditioner shown in fig. 4;
FIG. 7 is a schematic exploded view of the air supply assembly shown in FIG. 1;
FIG. 8 is a schematic exploded view of the air moving assembly shown in FIG. 1 from another angle;
FIG. 9 is a schematic block diagram of an air supply assembly according to another embodiment of the present invention;
fig. 10 is a schematic exploded view of the air supply assembly shown in fig. 9.
Detailed Description
Fig. 1 is a schematic block diagram of an indoor unit of a cabinet air conditioner according to an embodiment of the present invention; fig. 2 is a schematic cross-sectional view of the indoor unit of the cabinet air conditioner shown in fig. 1; fig. 3 is a schematic exploded view of the indoor unit of the cabinet air conditioner shown in fig. 1. Referring to fig. 1 to 3, a cabinet air conditioner indoor unit 200 includes a cabinet, an air blowing assembly 100 disposed in the cabinet, and an indoor heat exchanger 220. Specifically, the casing is provided with a casing air inlet 2111 and at least one casing air outlet. The air supply assembly 100 includes at least one centrifugal fan 110. The at least one centrifugal fan 110 is configured to draw in ambient air from the ambient environment of the cabinet air intake 2111 and to cause the ambient air to flow toward the at least one cabinet air outlet, respectively. The indoor heat exchanger 220 is disposed on an air intake flow path between the cabinet air intake 2111 and the at least one centrifugal fan 110 so that the ambient air entering through the cabinet air intake 2111 exchanges heat with the indoor heat exchanger 220. In the illustrated embodiment, an air deflector for opening or closing the casing air outlet is provided at the casing air outlet.
In particular, the cabinet air-conditioner indoor unit 200 may be provided with at least one mixed flow duct 260. Each mixed flow duct 260 may be configured to draw ambient air from the rear side and/or the lateral sides of the rear side of the housing to the front side of the housing when the centrifugal fan 100 blows heat exchange air forward and creates a negative pressure around the air flow, and mix with the heat exchange air blown from one housing air outlet to form a cool, non-cool, hot, non-dry mixed gas, improving the user's wind experience.
In some preferred embodiments, each mixed flow duct 260 may be configured to extend from back to front in a direction toward the centrifugal fan 110 blowing air toward its corresponding cabinet air outlet so that ambient air is thoroughly mixed with heat exchange air at the front side of the cabinet 210. In other words, each mixed flow duct 260 is disposed such that a flow path of the gas blown out therefrom and a flow path of the gas flow blown out through its corresponding casing outlet meet at the front side of the casing 210. The mixed flow duct 260 may be configured to taper from back to front to reduce wind resistance, facilitating the flow of ambient air through the mixed flow duct 260 to the front side of the cabinet 210.
In some preferred embodiments, the number of centrifugal fans 110 of the air supply assembly 100 may be two. The two centrifugal fans 110 may be arranged to be mirror symmetrical about an imaginary horizontal plane. The housing air outlet includes an upper air outlet 2121 and a lower air outlet 2122 below the upper air outlet 2121, and the two centrifugal fans 110 are configured to deliver air flow to the upper air outlet 2121 and the lower air outlet 2122, respectively. The cabinet air inlet 2111 may be formed in a rear housing of the cabinet, and the upper air outlet 2121 and the lower air outlet 2122 may be formed in the front panel 212 of the cabinet. To facilitate installation of the air supply assembly 100 and the indoor heat exchanger 220, the rear case may be composed of a circumferential housing 211, a top plate 213, and a bottom plate 214.
Preferably, the operation mode of the cabinet air conditioner indoor unit 200 may include a default mode. The two centrifugal fans 110 are configured to turn on the lower centrifugal fan and turn off the upper centrifugal fan or reduce the rotation speed of the impeller of the upper centrifugal fan when the indoor heat exchanger 220 is in a heating state in a default mode; when the indoor heat exchanger 220 is in a refrigerating state, the upper centrifugal fan is started, the lower centrifugal fan is closed or the impeller rotating speed of the lower centrifugal fan is reduced, and the characteristics of upward flowing of hot air flow and downward flowing of cold air flow are utilized, so that efficient and uniform air-out heat exchange is effectively realized, and the comfort level of a user is improved. In this embodiment, the number of the mixed flow duct 260 may be one, and may be configured to suck ambient air to the front side of the cabinet 210 and mix with the heat exchange cold air blown out from the upper air outlet 2121 to form a cool and non-cool mixed air, avoiding the occurrence of "air conditioning sickness".
The operation mode of the cabinet air conditioner indoor unit 200 may further include an efficient mode. In the high efficiency mode, the two centrifugal fans 110 are configured to operate synchronously at a set rotational speed. Fig. 4 is a schematic structural view of an indoor unit of a cabinet air conditioner according to another embodiment of the present invention; fig. 5 is a schematic cross-sectional view of the indoor unit of the cabinet air conditioner shown in fig. 4; fig. 6 is a schematic exploded view of the indoor unit of the cabinet air conditioner shown in fig. 4. Referring to fig. 5, in some preferred embodiments, the number of mixed flow ducts 260 is two, and the two mixed flow ducts 260 are configured to suck ambient air to the front side of the cabinet 210 and mix with heat exchange air blown from the upper air outlet 2121 and the lower air outlet 2122, respectively. In the illustrated embodiment, the mixed flow duct 260 may be a cylindrical body penetrating the casing 210 in the front-rear direction. To facilitate assembly of the cabinet air conditioner indoor unit 200, the mixed flow duct 260 may be formed by splicing a front mixed flow duct 260 integrally formed with the front panel 212 and a rear mixed flow duct 260 integrally formed with the rear case. Preferably, the mixed flow air duct 260 may be configured such that two lateral inner walls of the air outlet thereof are respectively located in the same vertical plane with two lateral inner walls of the corresponding casing air outlet, so as to increase the air volume of the ambient air flowing through the mixed flow air duct 260.
Referring to fig. 1 to 3, in other embodiments, a mixed flow duct 260 for mixing with the heat exchange gas blown out from the upper air outlet 2121 may be formed by the top cover 213. Specifically, the top cover 213 may include a bottom plate for fixedly coupling with the rear case 211 and the front panel 212, a top plate disposed above the bottom plate, and at least one support plate vertically extending in the front-rear direction to couple the top plate and the bottom plate. Wherein the top and bottom plates are sandwiched to form a mixed flow duct 260. In some preferred embodiments, the number of support plates is one. The support plate may be arranged such that its projection onto the base plate divides the base plate into two parts to increase the amount of air of the ambient air for mixing with the heat exchange air. Further, the support plate is provided such that its projection onto the base plate divides the base plate into two parts having equal areas, to improve the aesthetic appearance of the cabinet air conditioner indoor unit 200. In some alternative embodiments, the number of support plates may be two, with upper and lower ends thereof being joined to lateral side ends of the top and bottom plates, respectively.
FIG. 7 is a schematic exploded view of the air supply assembly shown in FIG. 1; fig. 8 is a schematic exploded view of the air supply assembly shown in fig. 1 from another angle. Referring to fig. 7 and 8, in some preferred embodiments of the present invention, the air supply assembly 100 may further include a fan bracket for supporting two centrifugal fans 110. The fan bracket is internally limited with an accommodating space for accommodating the two centrifugal fans 110, and is provided with two mounting openings 123, the inner walls of which are respectively arranged to be matched with the outer walls of the shells of the two centrifugal fans 110, and the fan air inlet and the fan air outlet of each centrifugal fan 110 are exposed.
According to the invention, the two centrifugal fans 110 are all accommodated in the accommodating space defined by the fan bracket, and the centrifugal fans 110 and the fan bracket form an integrated assembly, compared with the prior art that a plurality of centrifugal fans are fixedly connected through sheet metal parts, the air supply assembly 100 is more stable and reliable, and vibration noise generated in the working process of the air supply assembly 100 can be effectively reduced.
It should be noted that, as well known to those skilled in the art, the centrifugal fan 110 includes a volute 112 and an impeller 111 disposed in the volute 112. Wherein the volute 112 includes two volute sidewalls that together define a volute air channel and a volute perimeter wall that connects the two volute sidewalls. At least one volute sidewall of each centrifugal fan 110 is provided with a fan air inlet. The peripheral wall of the volute includes a volute section gradually expanding relative to the outer contour of the impeller 111, and a volute tongue section and an outlet section respectively extending from two ends of the volute section, and a fan air outlet of the centrifugal fan 110 is formed between the volute tongue section and the outlet section. The two mounting openings 123 of the fan bracket are arranged with their inner walls respectively in a form fitting with the peripheral walls of the volutes of the two centrifugal fans 110. The number of fan air inlets of each centrifugal fan 110 is preferably two, and the fan air inlets are respectively arranged on the two side walls of the volute, so as to improve the air quantity of the air supply assembly 100.
In some preferred embodiments, the fan bracket may be surrounded by four circumferential side plates that are opposed to each other in pairs and two longitudinal end plates that are joined to the longitudinal ends of the four circumferential side plates at respective circumferential ends, respectively, to facilitate the production of the fan bracket and the installation and transportation of the air supply assembly 100. The mounting opening 123 may be configured to extend through the fan bracket in a lateral direction of the fan bracket, and expose fan air inlets of the two centrifugal fans 110 on lateral circumferential side plates of the fan bracket, and fan air outlets on two longitudinal end plates of the fan bracket, respectively.
Referring to fig. 7 and 8, in some preferred embodiments of the present invention, the inner surface of the fan bracket may be provided with a plurality of ribs 124 extending inward to increase the strength of the fan bracket, thereby improving the stability of the centrifugal fan 110 and reducing vibration noise. In the illustrated embodiment, the number of ribs 124 is two, i.e., one rib 124 for each mounting opening 123. Specifically, each of the ribs 124 may include a front side linear section, a rear side linear section, and two arcuate sections. The front side line shaped section may extend in a lateral direction and connect a front circumferential side plate and two lateral circumferential side plates of the fan bracket. The rear side line shaped section may extend in a lateral direction and connect a rear circumferential side plate and two lateral circumferential side plates of the fan bracket. The projection of the front side line segment in the lateral direction is preferably located at a position where the inner wall of the mounting opening 123 is shortest in distance from the front circumferential side plate in the front-rear direction. The projection of the rear side line shaped section in the lateral direction is preferably located at a position where the inner wall of the mounting opening 123 is the shortest distance from the rear circumferential side plate in the front-rear direction, to ensure that the fan bracket has sufficient strength to support the centrifugal fan 110 and to save material costs. The two arcuate segments may be disposed at the inner peripheral edges of the portions of the mounting opening 123 at the two lateral peripheral side plates, respectively, and are configured to connect the front side linear segment and the rear side linear segment to further enhance the structural strength of the fan bracket. In some further preferred embodiments, the surface of the arcuate segment facing the axis of rotation of the impeller 111 may be disposed coplanar with the inner wall of its corresponding mounting opening 123 to further enhance the stability of the centrifugal fan 110.
In some preferred embodiments of the present invention, the air moving assembly 100 may further include a plurality of connection plates. The plurality of connection plates may be divided into two groups for respectively fixing the two centrifugal fans 110 to the fan bracket. The connection plate may be provided such that one end thereof is fixedly connected to the side wall of the scroll case of the centrifugal fan 110 and the other end thereof is fixedly connected to the periphery of the installation opening 123 corresponding to the centrifugal fan 110. Each set of connection plates may preferably be densely distributed along the extending direction of the corresponding volute air duct of the centrifugal fan 110 (i.e., the airflow flowing direction in the volute air duct of the centrifugal fan 110), so as to improve the stability of the centrifugal fan 110 and reduce the vibration noise. The connection plate may be configured to be pre-secured to the side wall of the volute or the fan bracket to facilitate assembly of the air supply assembly 100.
In some preferred embodiments of the invention, each set of connecting plates may comprise a plurality of radial plates 141 extending in a direction perpendicular to the axis of rotation of the impeller 111 and at least one axial plate 142 extending in a direction parallel to the axis of rotation of the impeller 111. A plurality of radial plates 141 may be provided in fixed connection with the lateral circumferential side plates of the fan bracket. At the periphery of the mounting opening 123 may be provided with a coupling protrusion 125 extending to the outside of the receiving space defined by the fan bracket, and at least one axial plate member 142 may be provided in contact with the coupling protrusion 125 to fix the centrifugal fan 110 to the fan bracket. The connection protrusion 125 is preferably located in the mounting opening 123 with its partial projection on the longitudinal plane extending in the front-rear direction, i.e. the surface of the connection protrusion 125 facing the centrifugal fan 110 is arranged to contact the volute sidewall of the centrifugal fan 110 adjacent thereto, so that the connection of the axial plate 142 and the connection protrusion 125 is more stable and firm, thereby improving the stability of the centrifugal fan 110. In some further preferred embodiments, at least a plurality of radial plates 141 of each set of connecting plates are disposed at locations corresponding to the volute sections of the volute sidewall, and at least one axial plate 142 is disposed at locations corresponding to the outlet sections of the volute sidewall to reduce vibration noise generated when the impeller 111 rotates. In other words, when the number of the axial plate members 142 in each set of the connection plate members is one, the axial plate members 142 are provided at positions corresponding to the outlet sections of the peripheral wall of the scroll case; when the number of the axial plate members 142 in each set of the connection plate members is plural, at least one axial plate member 142 of the plurality of axial plate members 142 is disposed at a position corresponding to the outlet section of the peripheral wall of the scroll casing. In this embodiment, when the volute 112 is divided into a first portion adjacent to the volute tongue section and a second portion adjacent to the outlet section along the direction of airflow in its volute air channel, the radial plate member 141 and the axial plate member 142 of each set of connecting plate members may be fixedly connected to the first portion and the second portion of the volute 112, respectively. The central axes of the radial plates 141 and the axial plates 142 of each set of connection plates, which extend in the radial direction of the impeller 111 of its corresponding centrifugal fan 110, are preferably arranged symmetrically with respect to a radial central plane of the impeller 111 (radial central plane refers to a central plane perpendicular to the rotation axis of the impeller 111) in order to improve the stability of the centrifugal fan. For example, in the embodiment of fig. 1-3, the number of radial plates 141 in each set of connecting plates is four and the number of axial plates 142 is two. Four of the radial plates 141 and two of the axial plates 142 are symmetrically disposed on both lateral sides of the centrifugal fan 110, respectively. In the embodiment of fig. 9 to 10, the number of radial plates 141 in each set of connecting plates is five, and the number of axial plates 142 is one. Four of the radial plate members 141 are disposed at positions corresponding to the volute sections of the volute circumferential wall and are symmetrical with respect to the radial center plane of the centrifugal fan 110, and one radial plate member 141 and one axial plate member 142 are disposed at positions corresponding to the outlet sections of the volute circumferential wall and are respectively located on both lateral sides of the centrifugal fan 110, and their central axes extending in the radial direction of the impellers 111 of their corresponding centrifugal fans 110 are symmetrical with respect to the radial center plane of the centrifugal fan 110. In other embodiments, a plurality of radial plates 141 and at least one axial plate 142 may also be disposed on each lateral side of the volute 112.
In some preferred embodiments of the present invention, the fan bracket may be composed of a first bracket member 121 and a second bracket member 122 to facilitate the installation of the centrifugal fan 110. The first and second bracket members 121 and 122 are disposed to be joinable along the joint surface to form a receiving space for receiving the plurality of centrifugal fans 110, and define mounting openings 123 for exposing the fan air inlets and the fan air outlets. The splicing surface can be a plane, a step surface, a bending surface, a curved surface and the like. Referring to fig. 7 to 8, in some embodiments, the first and second bracket members 121 and 122 may be located at front and rear sides of the centrifugal fan 110, respectively. The split surfaces of the first and second bracket members 121 and 122 may be provided to extend in the longitudinal and lateral directions to facilitate production and transportation of the first and second bracket members 121 and 122. The rotation axes of the impellers 111 of the two centrifugal fans are located on the split surfaces so as to facilitate the installation of the centrifugal fans 110. The two lateral side plates of the first bracket member 121 may be provided with a plurality of front side split lugs 1261 extending in the lateral direction, respectively. The two lateral side plates of the second bracket member 122 may be provided with a plurality of rear side split lugs 1262 corresponding to the front side split lugs 1261, the plurality of front side split lugs 1261 being arranged to securely mate with the plurality of rear side split lugs 1262 to fixedly split the first and second bracket members 121, 122. Preferably, at least one front mating lug 1261 on each lateral side of the centrifugal fan 110 has a rear surface that is disposed parallel to or intersects the mating surfaces of the first bracket member 121 and the second bracket member 122 to improve the stability of the air moving assembly 100. In other words, when the first bracket member 121 and the second bracket member 122 are coupled to form a fan bracket, the front coupling lugs 1261 or the rear coupling lugs 1262 on both lateral sides of the centrifugal fan 110 are configured to restrict movement of the first bracket member 121 and the second bracket member 122 in a direction parallel to the coupling surfaces, thereby extending the service life of the fastener connecting the front coupling lugs 1261 and the rear coupling lugs 1262, further improving the stability of the air blowing assembly 100, and reducing vibration noise generated during operation of the centrifugal fan 110. In this embodiment, the number of the axial plates 142 in each set of connection plates may be an even number and symmetrically disposed at both lateral sides of the centrifugal fan 110, for example, two, four, six, etc., to improve the stability of the centrifugal fan 110 and reduce vibration noise. FIG. 9 is a schematic block diagram of an air supply assembly according to another embodiment of the present invention; fig. 10 is a schematic exploded view of the air supply assembly shown in fig. 9. Referring to fig. 9 and 10, in other embodiments, the first and second bracket members 121 and 122 may be located at both lateral sides of the centrifugal fan 110, respectively. The split surfaces of the first and second bracket members 121 and 122 may be provided to extend in the longitudinal direction and the front-rear direction to facilitate production and transportation of the first and second bracket members 121 and 122. The forward side plates of the first and second bracket members 121, 122 may each be provided with a plurality of forwardly extending front side split lugs 1261, and the rearward side plates of the first and second bracket members 121, 122 may each be provided with a plurality of rearwardly extending rear side split lugs 1262. The front side split lugs 1261 and the rear side split lugs 1262 of the first bracket member 121 are provided in secure connection with the front side split lugs 1261 and the rear side split lugs 1262 of the second bracket member 122, respectively, to secure the first bracket member 121 and the second bracket member 122 in split. Preferably, a surface of the at least one front side split lug 1261 of the first bracket member 121 facing the second bracket member 122 is disposed parallel to or intersects a split surface of the first bracket member 121 and the second bracket member 122, and a surface of the at least one rear side split lug 1262 of the first bracket member 121 facing the second bracket member 122 is disposed parallel to or intersects a split surface of the first bracket member 121 and the second bracket member 122 to improve stability of the air blowing assembly 100.
In some embodiments of the present invention, an air intake passage may be provided between each adjacent two centrifugal fans 110, the air intake passage being defined by a fan bracket and a peripheral wall of a volute of the adjacent two centrifugal fans 110 and configured to guide air located at a rear side of the air supply assembly 100 around a front portion of the air supply assembly 100, so that the two centrifugal fans 110 may draw air from both lateral sides and rear sides of the fan bracket at the same time. In some embodiments, the air inlet of the air inlet channel may be formed in the rear circumferential side plate of the fan bracket, and the air outlet of the air inlet channel may be formed in the two lateral circumferential side plates of the fan bracket, so that the centrifugal fan 110 may obtain the ambient air introduced through the air inlet channel. Specifically, in an embodiment in which the first bracket member 121 and the second bracket member 122 are respectively located at the front and rear sides of the centrifugal fan 110, the air inlet of the air inlet channel may be opened at the rear side plate of the second bracket member 122, and the air outlet of the air inlet channel may be opened at the lateral side plate of the first bracket member 121. In an embodiment in which the first support member 121 and the second support member 122 are respectively located at two lateral sides of the centrifugal fan 110, the rear side plates of the first support member 121 and the second support member 122 may be respectively provided with air inlet openings, the air inlets of the air inlet channels may be formed by splicing the air inlet openings of the first support member 121 and the second support member 122, and the air outlets of the air inlet channels may be respectively provided at the lateral side plates of the first support member 121 and the second support member 122. The inner surface of the inlet opening of the inlet channel in the longitudinal direction is preferably coplanar with the surfaces of the two rear side line segments facing the mirror symmetry planes of the two centrifugal fans 110. The inner surface of the air inlet channel in the transverse direction is preferably coplanar with the inner surfaces of the two transverse circumferential side plates of the fan bracket. The projection of the air outlet of the air inlet channel in the longitudinal direction is completely in the range of the maximum cross section of the air inlet of the fan. The air outlet of the air inlet channel is preferably provided with two inner surfaces in the longitudinal direction which are respectively arranged to extend at equal intervals relative to the outer surfaces of the adjacent volute peripheral walls so as to reduce the wind resistance of the air inlet channel and improve the air quantity of the air inlet channel. The inner surface of the inlet opening of the inlet channel in the longitudinal direction is not coplanar (coincident) with the surface of the reinforcing rib 124 facing the mirror symmetry plane of the two centrifugal fans 110, so as to ensure the structural strength of the fan bracket.
In other embodiments, the air inlet of the air inlet channel may be formed in the rear circumferential side plate of the fan bracket, and the air outlet of the air inlet channel may be formed in the front circumferential side plate of the fan bracket, so as to reduce the resistance of the ambient air flowing in the air inlet channel. Specifically, in an embodiment in which the first bracket member 121 and the second bracket member 122 are respectively located at the front and rear sides of the centrifugal fan 110, the air inlet of the air inlet channel may be opened at the rear side plate of the second bracket member 122, and the air outlet of the air inlet channel may be opened at the front side plate of the first bracket member 121. In an embodiment in which the first bracket member 121 and the second bracket member 122 are respectively located at two lateral sides of the centrifugal fan 110, the rear side plates of the first bracket member 121 and the second bracket member 122 may be respectively provided with an air inlet opening and an air outlet opening, the air inlet of the air inlet channel may be formed by splicing the air inlet openings of the first bracket member 121 and the second bracket member 122, and the air outlet of the air inlet channel may be formed by splicing the air outlet openings of the first bracket member 121 and the second bracket member 122. The inner surfaces of the air inlet and the air outlet of the air inlet channel in the longitudinal direction are preferably coplanar with the surfaces of the two rear side line segments and the two front side line segments facing the mirror symmetry planes of the two centrifugal fans 110, respectively. The inner surfaces of the air inlet and the air outlet of the air inlet channel in the transverse direction are preferably coplanar with the inner surfaces of the two transverse circumferential side plates of the fan bracket, so that the wind resistance of the air inlet channel is reduced, and the air quantity of the air inlet channel is improved.
The air supply assembly 100 may also include two air guide channels 130. The channel air inlets of the two air guide channels 130 may be configured to respectively interface with the fan air outlets of the two centrifugal fans 110 and extend in a forward arc-shape in a direction away from the symmetry plane of the two centrifugal fans 110 to receive and guide the air flow from the two centrifugal fans 110 forward. The air guide path 130 is preferably provided to be gradually extended from rear to front to increase the air supply distance of the air supply assembly 100. Referring to fig. 7 and 8, in some embodiments, the outer walls of the front and rear sides of each air guide channel 130 may have a plurality of longitudinal mounting tabs 132 extending in a direction toward the symmetry plane of the two centrifugal fans 110, each longitudinal mounting tab 132 being provided with a mounting hole. The peripheral wall of the volute of the centrifugal fan 110 may be correspondingly provided with a plurality of mounting posts 113, and the mounting holes of the plurality of longitudinal mounting tabs 132 may be respectively configured to be fastened with the plurality of mounting posts 113, so as to fixedly connect the air guide channel 130 with the centrifugal fan 110. The longitudinal end plate of the fan bracket may be provided with a plurality of avoidance grooves 1221, and the longitudinal mounting tabs 132 may be configured to pass through the avoidance grooves 1221 to fasten mounting holes thereon to the corresponding mounting posts 113. Referring to fig. 9 and 10, in other embodiments, the front side outer wall of each air guide channel 130 may have a plurality of longitudinal mounting tabs 132 extending in a direction toward the symmetry plane of the two centrifugal fans 110, and the plurality of longitudinal mounting tabs 132 may be provided in fixed connection with the front circumferential side plate of the fan bracket. The rear outer wall of each air guide channel 130 has a plurality of rearward mounting tabs 133 extending rearward, and the plurality of rearward mounting tabs 133 may be provided in fixed connection with the portion of the longitudinal end plate located rearward of the mounting opening 123. In some preferred embodiments, lateral side outer walls of each of the wind guide channels 130 may have wedge-shaped guide protrusions 131 that are downwardly divergent. The surface of the wedge-shaped guide protrusion 131 facing the extension axis of the air guide passage 130 may be configured to be matable with the volute sidewall of the centrifugal fan 110 to facilitate the installation and positioning of the air guide passage 130.
Referring to fig. 2-3, in some preferred embodiments, the cabinet air conditioner indoor unit 200 may further include a water pan 230. The water pan 230 has a concave cavity opened upward for collecting condensed water flowing down from the indoor heat exchanger 220. The circumferential side wall of the recessed cavity of the water tray 230 (the side wall combined with the bottom wall) may be provided in fixed connection with the cabinet. The indoor heat exchanger 220 may be disposed above the water pan 230, and the projection of the indoor heat exchanger 220 on the horizontal plane is completely within the range defined by the cavity, so that all the condensed water left from the indoor heat exchanger 220 flows into the water pan 230, thereby avoiding the condensed water from polluting the indoor environment.
The cabinet air conditioner indoor unit 200 may further include a weather strip 240 positioned above the water pan 230. The indoor heat exchanger 220 may be disposed in a space formed by sandwiching the wind deflector 240 and the water pan 230, and an upper end surface and a lower end surface of the indoor heat exchanger 220 are respectively in contact fit with a lower surface of the wind deflector 240 and a bottom wall of the cavity. The projection of the cabinet intake 2111 on the vertical plane may be entirely between the wind deflector 240 and the water pan 230 so that all of the ambient air drawn from the cabinet intake 2111 exchanges heat with the indoor heat exchanger 220. In some preferred embodiments, the bottom wall of the cavity and the lower surface of the wind deflector 240 may be provided with a plurality of stoppers, respectively. The plurality of stoppers are provided to extend in a direction toward the indoor heat exchanger 220 and to be engaged with an outer surface of the indoor heat exchanger 220, so as to facilitate installation and positioning of the indoor heat exchanger 220 and the wind deflector 240, and to restrict movement of the indoor heat exchanger 220 in a horizontal direction.
In some preferred embodiments, the rear bottom end of the air supply assembly 100 may be fixed on the water tray 230, so that the overall structure of the indoor unit 200 of the cabinet air conditioner is more compact and stable, the occupied space of the indoor unit 200 of the cabinet air conditioner is reduced, and the user experience is improved. The water tray 230 may include a water receiving portion 231 for collecting condensed water flowing down from the indoor heat exchanger 220 and a supporting portion 232 for supporting the air supply assembly 100. The water receiving part 231 has a concave cavity opened upward. The recess may include a first water receiving section extending in a lateral direction of the cabinet and a second water receiving section extending forward from lateral both side ends of the first water receiving section. The support portion 232 may be disposed to extend horizontally forward from the front side outer wall of the first water receiving section, and the rear bottom end of the air supply assembly 100 is fixed to the support portion 232. The bottom surface of the support part 232 may be provided with a plurality of ribs extending in the front-rear direction and connected with the water receiving part 231 to improve the structural strength of the water receiving tray 230. To facilitate the mounting and positioning of the air supply assembly 100, the circumferential side walls of the recess toward the vertical central axis of the cabinet may be configured to mate with the outer walls of the air guide channels 130. The circumferential side walls of the recess facing the vertical central axis of the cabinet may be provided with a dimension in the vertical direction that is larger than the dimension in the vertical direction of the other circumferential side walls of the recess.
The cabinet air conditioner indoor unit 200 may further include two structural supports 250 extending in a vertical direction. Two structural supports 250 may be provided to connect the front lateral end of the air moving assembly 100 with the cabinet to improve the stability of the air moving assembly 100. Specifically, each structural support 250 may include a front side assembly securing section and a rear side assembly securing section, a connecting section connecting the front side assembly securing section and the rear side assembly securing section, and two chassis securing sections. The front side assembly fixing section and the rear side assembly fixing section may be disposed to extend in a lateral direction of the cabinet and to be symmetrical with respect to an imaginary plane extending in the lateral and vertical directions for fixedly connecting with the fan bracket. The two chassis fixing sections may be arranged to extend from the outer ends of the front side assembly fixing section and the rear side assembly fixing section, respectively, in a direction away from the imaginary plane for fixed connection with the lateral side plates of the rear housing. The fan bracket may be provided with two extension portions 127 extending outwardly in the lateral direction from lateral both side ends of the front circumferential side plate thereof, respectively, to be fixedly connected with the two front side assembly fixing sections, so as to facilitate the installation and the removal of the air supply assembly 100. In some preferred embodiments, the structural support 250 may also include an upper cuff and a lower cuff. The upper and lower turn-ups may be disposed to extend horizontally from the upper and lower ends of the connection section in a direction toward the vertical central plane of the cabinet in the front-rear direction, respectively, and are disposed to be fixedly connected with the top plate 213 and the bottom plate 214 of the rear cabinet, respectively, so as to improve the stability of the air blowing assembly 100. The front end of the water tray 230 may be fixedly connected to the two structural supports 250 to improve stability of the water tray 230, thereby improving stability of the air supply assembly 100 and reducing vibration noise. In other embodiments, the cabinet air conditioner indoor unit 200 may further include a plurality of sheet metal parts. The plurality of sheet metal parts are provided to connect the front lateral end portion of the air blowing assembly 100 and the two front assembly fixing sections, so that the air blowing assembly 100 is manufactured and transported.
The inventor of the present application carries out comprehensive analysis on vibration parameters generated when the impeller 111 of the centrifugal fan 110 works, creatively accommodates all the plurality of air supply fans in the accommodation space defined in the fan bracket, and skillfully adopts a connecting plate in a specific form to fix the centrifugal fan 110 and the fan bracket as an integrated component and then installs the integrated component in the casing, so that the whole machine structure is more stable and reliable, not only can the vibration be aggravated and the strong noise be generated due to the rise of the center of gravity of the whole machine, but also the vibration of the whole machine is weakened and the noise is reduced.
By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.
Claims (9)
1. An indoor unit of a cabinet air conditioner, comprising:
the shell is provided with a shell air inlet and at least one shell air outlet;
the air supply assembly comprises at least one centrifugal fan, is arranged in the shell, and is configured to suck ambient air from the surrounding environment of the shell air inlet and promote the ambient air to flow to the at least one shell air outlet respectively; and
the indoor heat exchanger is arranged on an air inlet flow path between the shell air inlet and at least one centrifugal fan, so that the ambient air entering through the shell air inlet exchanges heat with the indoor heat exchanger; it is characterized in that the method comprises the steps of,
the cabinet air conditioner indoor unit is provided with at least one mixed flow air duct, and each mixed flow air duct is configured to suck ambient air to the front side of the machine shell and mix the ambient air with heat exchange air blown out from one machine shell air outlet so as to improve the wind sensing experience of a user; and the air supply assembly further comprises:
the fan bracket is provided with at least one mounting opening penetrating through the fan bracket along the horizontal direction, and the inner wall of each mounting opening is arranged to be matched with the peripheral wall of the volute of one centrifugal fan, so that the fan air inlet and the fan air outlet of the centrifugal fan are exposed; and
at least one set of connection plates, each set of connection plates comprising a plurality of radial plates extending in a direction perpendicular to the rotational axis of the centrifugal fan, and at least one axial plate extending in a direction parallel to the rotational axis of the centrifugal fan; wherein,,
the radial plate and the axial plate are fixedly connected with the fan bracket and the side wall of the volute of the centrifugal fan.
2. The indoor unit of claim 1, wherein the indoor unit of the cabinet air conditioner,
each mixed flow air duct is arranged to extend from back to front towards the direction of the centrifugal fan blowing air flow towards the corresponding shell air outlet, so that the ambient air and the heat exchange air are fully mixed at the front side of the shell.
3. The indoor unit of claim 1, wherein the indoor unit of the cabinet air conditioner,
the mixed flow air duct is arranged to gradually taper from back to front so that ambient air flows to the front side of the casing through the mixed flow air duct.
4. The indoor unit of claim 1, wherein the indoor unit of the cabinet air conditioner,
the number of the centrifugal fans is two, and the centrifugal fans are arranged to be mirror symmetry about an imaginary horizontal plane;
the casing air outlet comprises an upper air outlet and a lower air outlet positioned below the upper air outlet, and the two centrifugal fans are configured to respectively convey air flow to the upper air outlet and the lower air outlet.
5. The indoor unit of claim 4, wherein the two centrifugal fans are configured to:
when the indoor heat exchanger is in a heating state, the lower centrifugal fan is started, and the upper centrifugal fan is closed or the impeller rotating speed of the upper centrifugal fan is reduced;
when the indoor heat exchanger is in a refrigerating state, the upper centrifugal fan is started, and the lower centrifugal fan is closed or the impeller rotating speed of the lower centrifugal fan is reduced.
6. The indoor unit of claim 5, wherein the indoor unit of the cabinet air conditioner,
the number of the mixed flow air channels is one; and is also provided with
The mixed flow duct is configured to suck ambient air to the front side of the cabinet and mix with heat exchange air blown out from the upper air outlet to form a cool and uncooled mixed air.
7. The indoor unit of claim 4, wherein the indoor unit of the cabinet air conditioner,
the number of the mixed flow air channels is two; and is also provided with
The two mixed flow air channels are configured to suck ambient air to the front side of the casing and mix with heat exchange air blown out from the upper air outlet and the lower air outlet, respectively.
8. The indoor unit of claim 4, wherein the indoor unit of the cabinet air conditioner,
the fan bracket is formed by encircling four opposite peripheral side plates in pairs and two longitudinal end plates which are respectively combined with the longitudinal two ends of the four peripheral side plates at the peripheral end parts, and the two centrifugal fans are arranged in an accommodating space defined by the fan bracket.
9. The indoor unit of claim 5, wherein the air supply assembly further comprises:
the air inlets of the two air guide channels are respectively arranged to be in butt joint with the air outlets of the two centrifugal fans and extend forwards in an arc shape in the direction deviating from the imaginary horizontal plane so as to respectively receive air flows from the two centrifugal fans and guide the air flows to the upper air outlet and the lower air outlet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810316922.1A CN108413497B (en) | 2018-04-10 | 2018-04-10 | Indoor unit of cabinet air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810316922.1A CN108413497B (en) | 2018-04-10 | 2018-04-10 | Indoor unit of cabinet air conditioner |
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| CN108413497A CN108413497A (en) | 2018-08-17 |
| CN108413497B true CN108413497B (en) | 2023-07-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109595691B (en) * | 2018-12-20 | 2020-05-01 | 珠海格力电器股份有限公司 | Control method of double-through-flow air conditioner |
| CN111442395B (en) * | 2019-01-17 | 2021-08-24 | 重庆海尔空调器有限公司 | Indoor machine of floor air conditioner |
| CN109812873B (en) * | 2019-01-31 | 2020-11-27 | 青岛海尔空调器有限总公司 | Cabinet type air conditioner indoor unit |
| CN109827244A (en) * | 2019-03-29 | 2019-05-31 | 广东美的制冷设备有限公司 | Air-conditioned wind tunnel structure and air conditioner with it |
| CN110296468B (en) * | 2019-06-18 | 2023-09-01 | 青岛海尔空调器有限总公司 | Indoor unit of cabinet air conditioner |
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| CN206291337U (en) * | 2016-12-06 | 2017-06-30 | 美的集团股份有限公司 | Cabinet air-conditioner and air-conditioner |
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| CN102748810A (en) * | 2012-05-30 | 2012-10-24 | 广东美的制冷设备有限公司 | Air conditioner indoor unit capable of supplying air up and down and control method thereof |
| CN202993374U (en) * | 2012-09-25 | 2013-06-12 | 广东美的制冷设备有限公司 | Air-conditioner indoor unit capable of returning air at the back and supplying air up and down at the front |
| CN204063288U (en) * | 2014-06-26 | 2014-12-31 | 美的集团股份有限公司 | Air conditioner room unit |
| CN105371456B (en) * | 2015-12-01 | 2019-04-16 | 珠海格力电器股份有限公司 | Air duct assembly and air conditioner with same |
| CN106345198B (en) * | 2016-09-21 | 2019-07-19 | 广东美的环境电器制造有限公司 | Air purifier |
| CN208418966U (en) * | 2018-04-10 | 2019-01-22 | 青岛海尔空调器有限总公司 | Cabinet type air conditioner indoor set |
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| CN206291337U (en) * | 2016-12-06 | 2017-06-30 | 美的集团股份有限公司 | Cabinet air-conditioner and air-conditioner |
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Effective date of registration: 20230705 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |
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