CN108050586B - Indoor unit of wall-mounted air conditioner - Google Patents
Indoor unit of wall-mounted air conditioner Download PDFInfo
- Publication number
- CN108050586B CN108050586B CN201711048300.7A CN201711048300A CN108050586B CN 108050586 B CN108050586 B CN 108050586B CN 201711048300 A CN201711048300 A CN 201711048300A CN 108050586 B CN108050586 B CN 108050586B
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- Prior art keywords
- air
- wall
- air supply
- centrifugal fan
- cavity
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- 239000003570 air Substances 0.000 claims abstract description 748
- 238000002347 injection Methods 0.000 claims abstract description 40
- 239000007924 injection Substances 0.000 claims abstract description 40
- 239000012080 ambient air Substances 0.000 claims abstract description 19
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 238000005192 partition Methods 0.000 description 10
- 238000007664 blowing Methods 0.000 description 9
- 230000000712 assembly Effects 0.000 description 7
- 238000000429 assembly Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 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
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
-
- 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
- F24F13/20—Casings or covers
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
The invention provides a wall-mounted air conditioner indoor unit, which comprises: the shell is provided with a housing and a front panel, the top wall and the side wall of the housing are respectively provided with an air inlet, the lower part of the front panel is provided with an oblong air supply outlet, and the shell is arranged obliquely downwards relative to the supporting wall body so that the air supply outlet faces obliquely downwards; the air injection component is arranged in the air supply opening, the inner side of the annular inner wall of the air injection component is provided with an air suction hole, the annular outer wall and the annular inner wall jointly define an air supply cavity, the connected edges form air injection ports, the two transverse ends of the annular outer wall are respectively provided with a first air inlet and a second air inlet for providing heat exchange air flow for the air supply cavity, and the air injection ports are used for injecting air of the air supply cavity and sucking ambient air through the air supply opening; the first air supply assembly and the second air supply assembly are respectively used for generating heat exchange air flow which is supplied into the air supply cavity through the first air inlet and the second air inlet. The scheme increases the air supply quantity and leads the indoor temperature to be wholly and uniformly reduced.
Description
Technical Field
The invention relates to an air conditioner, in particular to an indoor unit of a wall-mounted air conditioner.
Background
The air conditioner is one of the necessary household appliances, and along with the increasing requirements of users on comfort and health, the air supply mode of the traditional air conditioner is to send cold air indoors, then the cold air is slowly convected with ambient air, the heat exchange speed is slower, people cannot feel cool rapidly, the air supply port of the indoor unit directly blows the people, adverse effects can be brought to the health of the users, and air conditioning diseases are easy to occur.
To this problem, the indoor unit of the spraying air outlet of soft air supply appears in the prior art, and it utilizes less air outlet to drive the surrounding air and blows out for the air after the heat transfer is mixed with the surrounding air and is sent out, however the requirement of spraying air outlet to the structure is higher, makes the spraying air outlet be applied to in the comparatively abundant cabinet indoor unit in space mostly. The hanging type indoor unit using the jet outlet often needs to set the casing to be round or in other irregular shapes in order to meet the structural requirement of the jet outlet, so that on one hand, the hanging type indoor unit has a gap with the use habit of a user and the existing cognition of the hanging type indoor unit, and is not easy to accept by the user; on the other hand, the occupied space is large, and the trouble is brought to the installation of the hanging type indoor unit, so that the hanging type indoor unit using the jet air outlet cannot meet the use requirement of a user.
Disclosure of Invention
The invention aims to provide a wall-mounted air conditioner indoor unit with soft air supply and high heat exchange speed.
A further object of the present invention is to provide a wall-mounted air conditioner indoor unit that is compact and compatible with the use habits of users.
It is a further object of the present invention to provide a wall-mounted air conditioner that is capable of providing uniform airflow from the air jet unit of the wall-mounted air conditioner.
In particular, the present invention provides a wall-mounted air conditioner indoor unit, comprising: the shell comprises a housing and a front panel arranged in front of the housing, wherein air inlets are respectively formed in the top wall and the side wall of the housing, an oblong air supply opening is formed in the lower part of the front panel, and the shell is obliquely downwards arranged relative to a supporting wall body for fixing the wall-mounted air conditioner indoor unit so that the air supply opening faces obliquely downwards;
the heat exchanger is arranged in the shell and close to the front panel; the air injection component is arranged in the air supply opening and comprises an annular inner wall and an annular outer wall, wherein an air suction hole is formed in the inner side of the annular inner wall, an air supply cavity is jointly defined by the annular outer wall and the annular inner wall, air injection ports are formed in the edge, which is connected with the annular outer wall, of the annular inner wall, a first air inlet and a second air inlet for receiving heat exchange air flow are respectively formed in the transverse two ends of the annular outer wall, the air injection ports are used for injecting air of the air supply cavity forwards and driving ambient air in the air suction hole to be sent out obliquely downwards, and the air suction hole is communicated with the surrounding environment at the upstream of the air supply direction; the first air supply assembly and the second air supply assembly are transversely arranged at the rear of the heat exchanger at intervals, wherein the first air supply assembly is used for generating first heat exchange airflow which enters from the air inlet and is supplied into the air supply cavity through the first air inlet after exchanging heat with the heat exchanger; the second air supply assembly is used for generating second heat exchange air flow which enters from the air inlet and is supplied into the air supply cavity through the second air inlet after exchanging heat with the heat exchanger.
Optionally, one end of the fixing frame is fixedly connected with the back of the housing, and the other end of the fixing frame is used for being fixed on the supporting wall; and at least a part of the lower edge of the back of the housing forms a chamfer so as to be attached to the supporting wall body by the chamfer after the fixing frame is fixed with the supporting wall body, thereby supporting the indoor unit.
Optionally, the housing is arranged with an inclination angle in the range of 5 to 30 degrees relative to the wall.
Optionally, the rear side edge of the annular inner wall is recessed inwardly of the air supply chamber, and the annular outer wall has an outwardly turned edge at a position opposite the rear side edge of the annular inner wall, such that a gap between the annular outer wall and the rear side edge of the annular inner wall forms an air jet.
Optionally, the annular inner wall extends forwardly from its rear side edge to form a continuous outwardly expanding coanda surface; the section of the part of the annular outer wall positioned at the rear side of the air injection component is spiral, so that the air flow of the air supply cavity is sent out along the coanda surface formed by the annular inner wall after being sprayed out from the air injection port along the annular outer wall, and the air supply cavity is driven to draw out the ambient air behind the air supply port.
Optionally, the first air supply assembly includes: the first centrifugal fan is used as a power source of first heat exchange airflow, and the first air guide component is connected between an exhaust port and a first air inlet of the first centrifugal fan so as to guide the airflow exhausted by the first centrifugal fan into the air supply cavity; the second air supply assembly includes: the second centrifugal fan and the second air guide component are connected between the exhaust port and the second air inlet of the second centrifugal fan so as to guide the air flow exhausted by the second centrifugal fan into the air supply cavity.
Optionally, the wall-mounted air conditioner indoor unit further includes: the baffle, it includes the longitudinal plate portion that is parallel to the front panel setting, and the middle part of longitudinal plate portion is recessed backward to inject the heat exchanger accommodation chamber that is used for arranging the heat exchanger with the front panel between, the air intake of housing sidewall vertically sets up in the edge that the housing sidewall is close to the front panel in order to communicate in the heat exchanger accommodation chamber.
Optionally, the partition plate further comprises a transverse plate portion connected with the top of the longitudinal plate portion and arranged at intervals with the top of the housing, the transverse plate portion defines an air inlet channel from the air inlet to the heat exchanger accommodating cavity, and the air inlet of the top wall of the housing is arranged above the transverse plate portion.
Optionally, a first through hole and a second through hole are arranged in the middle of the longitudinal plate part at intervals transversely, an impeller and a volute of the first centrifugal fan are arranged in a space defined by the longitudinal plate part and the housing, an exhaust port of the volute of the first centrifugal fan faces to the side wall of the housing on one side of the first air inlet, the exhaust port of the volute of the first centrifugal fan is connected with the air inlet of the first air guide part, and an air collecting port of the first centrifugal fan penetrates out of the first through hole to suck air from the heat exchanger accommodating cavity to form a first heat exchange airflow; the impeller and the volute of the second centrifugal fan are also arranged in the space defined by the longitudinal plate part and the housing, the exhaust port of the volute of the second centrifugal fan faces the side wall of the housing on one side of the second air inlet, the exhaust port of the volute of the second centrifugal fan is connected with the air inlet of the second air guide component, and the air collecting port of the second centrifugal fan penetrates out from the second through hole so as to suck air from the heat exchanger accommodating cavity to form second heat exchange airflow.
Optionally, the first wind guiding component includes: the first diversion section is provided with an air inlet of the first air guide component, at least part of the first diversion section is in a spiral shape, the air flow direction discharged by the first centrifugal fan is led downwards, and the first diversion section is gradually reduced from the air inlet of the first air guide component along the air flow direction; the first air supply section is connected with the first drainage section, a first air collection cavity is defined in the first air supply section and used for receiving air flow discharged by the first centrifugal fan, and a first air outlet connected with the first air inlet is formed in the first air supply section so that the air flow of the first air collection cavity is supplied to the air supply cavity; the first air supply section forms a volute shape along the air outlet direction of the first drainage section, so that the wind resistance of the first heat exchange air flow in the first air collection cavity is reduced; and is also provided with
The second air guiding member includes: the second diversion section is provided with an air inlet of the second air guide component, at least part of the second diversion section is in a spiral shape, the air flow direction discharged by the second centrifugal fan is led downwards, and the second diversion section is gradually reduced from the air inlet of the second air guide component along the air flow direction; the second air supply section is connected with the second drainage section, a second air collection cavity is defined in the second air supply section to receive air flow discharged by the second centrifugal fan, a second air outlet connected with the second air inlet is formed in the second air supply section, so that the air flow of the second air collection cavity is supplied to the air supply cavity, the second air supply section forms a volute along the air outlet direction of the second drainage section, and the wind resistance of the second heat exchange air flow in the second air collection cavity is reduced.
The invention relates to a wall-mounted air conditioner indoor unit, which is characterized in that an oblong air supply opening is arranged below a shell and is used for arranging an annular air injection component, so that air flow passing through the heat exchange of a heat exchanger is sprayed out from the air injection opening of the air injection component, ambient air around the air supply opening is sucked and mixed with heat exchange air with severe ambient temperature difference, the sent air flow is ensured to be soft, the feeling of blowing to a human body is more comfortable, on one hand, the air supply quantity is increased, the flow of indoor air is accelerated, the indoor temperature can be uniformly reduced as a whole, and the air supply opening of the wall-mounted air conditioner indoor unit is arranged below the shell, is in an oblong runway shape as a whole, has a whole structure similar to that of the traditional wall-mounted indoor unit, is easy to be approved by users, accords with the use habit of users, is easy to replace the traditional wall-mounted indoor unit, and has flexible installation position.
Furthermore, the shell of the wall-mounted air conditioner indoor unit is obliquely arranged relative to the supporting wall body, so that the air supply opening faces obliquely downwards, and the air output is large by adopting an injection type air outlet mode, so that the problems that when the air supply opening faces to the right front, the air supply air flow is far in injection distance at the same height, but the convection degree in the height direction is insufficient are solved.
Further, the air inlets are respectively formed in the top wall and the side wall of the housing, and external air can smoothly enter the heat exchanger accommodating cavity where the heat exchanger is located, so that heat exchange is performed, smooth heat exchange airflow is ensured, the air before and after heat exchange is separated by the partition board, and the whole housing is attractive.
Further, the wall-mounted indoor unit is characterized in that two air supply assemblies are arranged in the shell, and the air supply assemblies respectively provide heat exchange air flow for the air supply cavities of the air injection components to the air inlets (the first air inlet and the second air inlet) arranged on two sides of the air injection components and finally spray out from the air injection ports, and the two air supply assemblies are matched with each other to supply air together, so that the air flow in the air supply cavities is more uniform, the air outlet at each position of the air injection ports is uniform, the surrounding air can be uniformly driven, the stability and the uniformity of the air supply are further improved, and the use experience of users is further improved. In addition, under some special working conditions, the two air supply assemblies can be matched with each other to supply air together, and can be controlled independently according to the working conditions, for example, the two air supply assemblies can supply air according to the same air quantity at the same time; respectively supplying air according to different air volumes; the air supply is started alternatively, so that the air outlet of the indoor unit meets the requirements of different working conditions, the control is more flexible, and the different requirements of users are met.
Furthermore, the wall-mounted air conditioner indoor unit has compact internal component structure, fully utilizes the space in the shell and can make the wall-mounted air conditioner indoor unit thinner.
Furthermore, the indoor unit of the wall-mounted air conditioner improves the positions and the structures of the heat exchanger, the centrifugal fan, the air guide component and the like, so that the occupied space is reduced, and the air supply wind resistance is 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 exterior view of an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention;
fig. 2 is an installation schematic diagram of an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention;
Fig. 3 is a schematic exploded view of an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention;
fig. 4 is a schematic view of an air injection unit in an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention;
FIG. 5 is a front view of the air jet assembly shown in FIG. 4;
FIG. 6 is a schematic cross-sectional airflow diagram taken along section line A-A in FIG. 5;
fig. 7 is a schematic view of internal components of an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention; and
fig. 8 is a schematic view illustrating a structure in which a first air blowing unit and a second air blowing unit blow air to an air blowing unit in an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention.
Detailed Description
In order to facilitate description, the directions of "up", "down", "front", "back", "top", "bottom", etc. mentioned in the description are defined according to the spatial positional relationship of the wall-mounted air conditioner indoor unit 100 in the normal working state, for example, the side of the wall-mounted air conditioner indoor unit 100 facing the user is the front, and the side that is attached to the mounting position is the rear.
Fig. 1 is a schematic exterior view of a wall-mounted air conditioner indoor unit 100 according to one embodiment of the present invention, fig. 2 is a schematic installation view of the wall-mounted air conditioner indoor unit 100 according to one embodiment of the present invention, and fig. 3 is a schematic exploded view of the wall-mounted air conditioner indoor unit 100 according to one embodiment of the present invention. The wall-mounted air conditioner indoor unit 100 may generally include: the air-jet device comprises a shell 110, an air-jet component 120, a heat exchanger 140, a first air supply assembly and a second air supply assembly. Wherein the housing 110 may include: a housing 112, and a front panel 114 disposed in front of the housing 112. The housing 112 is formed of a top wall, side walls, and a back, which together define a space for accommodating the internal components, and a front panel 114 is disposed in front of the housing 112, thereby closing the internal space of the housing 112. The housing 110 is provided with an air inlet 116 and an air outlet 117. The air outlet 117 is formed in an oblong shape and is disposed at a lower portion of the housing 110 and communicates with the surrounding environment upstream in the air-supplying direction.
The air inlet 116 is formed in the top wall and the side wall of the housing 112. External ambient air can enter the indoor unit 100 from the top and the side, so that the air can smoothly enter the heat exchanger accommodating cavity where the heat exchanger 140 is positioned for heat exchange, the smoothness of heat exchange air flow is ensured, and the air inlet 116 can be formed by a grid, meshes and the like. The arrangement structure of the air inlet 116 can ensure the integrity of the appearance and improve the aesthetic degree of the machine body.
In some preferred embodiments, the air injecting component 120 may also be disposed at a position forward of the lower portion of the housing 110, and the bottom wall of the casing 112 is provided with a hollowed-out area 119 at the rear portion of the air injecting component 120 (i.e. upstream in the air supplying direction) and communicated with the surrounding environment, so that the heat exchange air ejected by the air injecting component 120 may be pumped into the surrounding air through the hollowed-out area 119 for mixing.
Alternatively, the air supply opening 117 may be disposed at the lower portion of the housing 110 in a front-rear penetrating manner (the corresponding positions of the cover 112 and the front panel 114 are respectively provided with an oblong through hole so as to form the air supply opening 117 extending front-rear, the position of the air supply opening 117 formed at the rear side of the cover 112 is recessed forward so as to form an air circulation area behind the air supply opening 117, thereby enabling the interior of the air supply opening 117 to be communicated with the air circulation area, the heat exchange gas sprayed by the air spraying component 120 can suck ambient air from the air circulation area for mixing, the temperature difference between the mixed air flow and the surrounding environment is small, the air supply amount is larger, and the flow of indoor air is accelerated.
The air jet member 120 is configured to jet air to form an air circulation, and has a long air supply distance. The wall-mounted air conditioner indoor unit may be disposed obliquely, and the housing 110 is disposed obliquely downward with respect to the support wall 200 for fixing the wall-mounted air conditioner indoor unit such that the air supply opening 117 is oriented obliquely downward.
An installation mode of the wall-mounted air conditioner indoor unit is as follows: a fixing frame 160 for mounting the housing 110 is provided. One end of the fixing frame 160 is fixedly connected with the back of the housing 112, the other end is used for being fixed on the supporting wall 200, and the lower edge of the back of the housing 112 is also abutted against the supporting wall 200, so that a supporting structure of the housing 110 is formed. The fixing frame 160 may be an integral fixing plate or one or more hanging rods. One end of the fixing frame 160 fixedly supporting the wall 200 can be reliably fixedly connected by bolts and screws.
At least a portion of the lower edge of the back of the casing 112 is chamfered to fit the support wall using the chamfer 118 after the fixing frame 160 is fixed to the support wall 200, thereby supporting the indoor unit 100. For example, the lower edge of the back of the casing 112 is formed with chamfers 118 on both sides so that the rear of the supply port 117 forms an air circulation area. The lower edge of the back of the casing 112, which is not chamfered, may be recessed forward with an air circulation area behind the supply opening 117. In other embodiments, the lower edge of the back of the housing 112 may also be integrally formed with a chamfer 118 to provide ambient air using a hollowed-out area 119 of the bottom wall of the housing 112 that communicates with the ambient environment.
The housing 110 is disposed at an inclination angle range of 5 to 30 degrees with respect to the wall 200. The inclination angle is determined by measuring and calculating according to the hanging height of the indoor unit 100 and the indoor environment, thereby better meeting the requirement of air flow circulation.
The heat exchanger 140 is disposed inside the housing 110 at a position close to the front panel 114, i.e., at the front of the inner space of the housing 110. The heat exchanger 140 exchanges heat with air flowing therethrough to change the temperature of the air flowing therethrough. The heat exchanger 140 is part of a refrigeration system that may be implemented using a compression refrigeration cycle that uses a refrigerant to transfer heat through a compression phase change cycle of a compressor, condenser, evaporator, and throttling device. The refrigeration system may also be provided with a four-way valve to change the flow direction of the refrigerant, so that the indoor heat exchanger 140 alternately serves as an evaporator or a condenser to realize a refrigeration or heating function. Since the compression refrigeration cycle in an air conditioner is well known to those skilled in the art, the operation principle and construction thereof will not be described herein. The heat exchanger 140 is of a plate type and is disposed against the front panel 114 of the housing 110.
The air injecting member 120 is disposed in the air outlet 117, has an overall oblong shape (or racetrack shape), and defines an air extracting hole 123 at the center of the air injecting member 120, and the air extracting hole 123 communicates with the surrounding environment upstream in the air supplying direction. The size and specification of the air injecting member 120 and its internal components may be set according to the air supplying capability of the first air supplying assembly and the second air supplying assembly.
Since the housing 110 is inclined, the direction of the air flow emitted from the air-jet member 120 is inclined downward. That is, the air flow in the air injecting part 120 is injected forward, and drives the ambient air in the air exhausting hole 123 defined by the inner peripheral wall of the air injecting part 120 to be sent out obliquely downward. The air flow of the air supply is inclined downwards, and the air inlet 116 is positioned at the top of the indoor unit, so that air flow circulation is formed, and indoor temperature balance is further improved.
Fig. 4 is a schematic view of the air injection unit 120 of the wall-mounted air conditioner indoor unit 100 according to an embodiment of the present invention, fig. 5 is a front view of the air injection unit 120 shown in fig. 4, and fig. 6 is a schematic cross-sectional airflow direction view taken along a section line A-A in fig. 5. The air injecting part 120 includes an annular inner wall 121 and an annular outer wall 122, the annular inner wall 121 and the annular outer wall 122 together forming the above-mentioned oblong shape, and an air extracting hole 123 is provided inside the annular inner wall 121. The edge of the annular outer wall 122 that meets the annular inner wall 121 forms a jet 124, the jet 124 being adapted to jet the air flow of the air supply chamber 125 forward and to cause air in the rear of the air supply opening 117 to be drawn through the air supply opening 117.
The rear side edge 126 of the annular inner wall 121 is recessed inwardly of the air supply chamber 125, and the annular outer wall 122 has an outwardly turned edge 127 at a position opposite to the rear side edge 126 of the annular inner wall 121, so that a gap between the annular outer wall 122 and the rear side edge 126 of the annular inner wall 121 forms the air jet 124. The rear edge 126 of the annular inner wall 121 recessed toward the inside of the air supply chamber 125 may also have an air flow direction guiding effect so that the air flow in the air supply chamber 125 is smoothly sent out from the air nozzles 124.
The annular inner wall 121 extends forwardly from its rear side edge 126 to form a continuous outwardly expanding coanda surface; and the section of the part of the annular outer wall 122 located at the rear side of the air injection part 120 is spiral, so that the air flow of the air supply cavity 125 is sent out along the coanda surface formed by the annular inner wall 121 after being ejected from the air injection port 124 along the annular outer wall 122, and the ambient air behind the air supply port 117 is drawn out. The expansion inclination angle of the annular inner wall 121 extending forward and continuously expanding outward may be 5 to 15 degrees, and the larger the inclination angle, the faster the outward expansion speed of the air flow ejected from the air jet 124, through a great amount of tests, the expansion inclination angle of the annular inner wall 121 may be set between 6 and 10 degrees, so that the mixing with the ambient air in the air suction hole 123 is more facilitated.
The annular inner wall 121 and the annular outer wall 122 together define an annular air supply chamber 125 inside the air injection member 120, and the lateral two ends of the annular outer wall 122 are respectively provided with a first air inlet 1291 and a second air inlet 1292 for providing air flow after heat exchange by the heat exchanger 140 to the air supply chamber 125.
In some alternative embodiments, the air injection component 120 may be in an overall shape of an oblong circle, the annular inner wall 121 and the annular outer wall 122 respectively have two spaced horizontal sections 128 and two arc sections 129 connecting the two horizontal sections 128, wherein the annular outer wall 122 in the two arc sections 129 is respectively provided with a first air inlet 1291 and a second air inlet 1292 of the air injection component 120 for receiving the air flow provided by the first air supply assembly and/or the second air supply assembly after heat exchange.
The above-described sections of the annular inner wall 121 and the annular outer wall 122 are formed of a plurality of connected components, and in some preferred embodiments, the annular inner wall 121 and the annular outer wall 122 may be formed of a unitary molded piece.
In some alternative embodiments, a wind deflector (not shown) may be disposed in the air supply chamber 125 to divide the air supply chamber 125 into two chambers, wherein one chamber is in communication with the first air inlet 1291 for receiving the first heat exchange air flow from the first air supply assembly and the other chamber is in communication with the second air inlet 1292 for receiving the second heat exchange air flow from the second air supply assembly. Thereby, the first air supply assembly and the second air supply assembly can be prevented from being affected with each other. The first air supply subassembly and second air supply subassembly can cooperate each other to realize the air supply, and both can start simultaneously, can start alone, and the mode of operation of first air supply subassembly and second air supply subassembly can include: the two air supply assemblies operate at the same air speed, the two air supply assemblies operate at different air speeds, the first air supply assembly operates independently, the second air supply assembly operates alternately, and therefore the effect similar to that of left and right air swinging is achieved, and balanced operation of internal components of the indoor unit 100 is guaranteed.
The gas jets 124 may be continuous annular grooves, and in some alternative embodiments, the gas jets 124 may be formed on a portion of the annular inner wall 121 and the annular outer wall 122, or in spaced apart segments. For example, the air jets 124 may be disposed only on the horizontal section 128 of the air jet assembly 120 so that the air jet is more uniform and may effectively entrain ambient air within the air extraction holes 123. In order to increase the jet velocity of the jet port 124, the width of the jet port 124 may be set to 1 to 3mm, and through a great number of tests, the width of the jet port 124 may be preferably set to about 2mm, and the jet port 124 with the width of the size not only ensures the jet velocity of the heat exchange air flow, but also can reduce the windage loss of the heat exchange air flow as much as possible and reduce noise. In fig. 6, the solid arrows indicate the air flow direction of the ambient air, and the broken arrows indicate the air flow direction of the heat exchange air flow ejected from the air ejection ports 124.
In some preferred embodiments, the air injection component 120 may also be driven by a motor and a transmission mechanism to achieve overall up-and-down swing, adjust the air supply angle, and achieve swing air supply, thereby making the air-out range wider.
The first air supply assembly and the second air supply assembly are transversely arranged in the shell 110 at intervals and are positioned at the rear of the heat exchanger 140, wherein the first air supply assembly is used for generating a first heat exchange air flow which enters from the air inlet 116 and is supplied into the air supply cavity 125 through the first air inlet 1291 after exchanging heat with the heat exchanger 140; the second air supply assembly is configured to generate a second heat exchange air flow entering from the air inlet 116, exchanging heat with the heat exchanger 140, and then being supplied to the air supply cavity 125 through the second air inlet 1292.
The first air supply assembly and the second air supply assembly are symmetrically arranged with the center of the heat exchanger 140, and supply air to the first air inlet 1291 and the second air inlet 1292 at both sides of the air injection member 120, respectively.
The first air supply assembly includes: the first centrifugal fan 131 and the first air guide 136. The first centrifugal fan 131 is used as a power source for the flow of the first heat exchange airflow, and may be configured such that ambient air enters from the air inlet 116 and exchanges heat with the heat exchanger 140, is discharged downstream through the first centrifugal fan 131, and finally enters the air supply cavity 125 through the first air inlet 1291 and is sent out of the indoor unit 100. The first air guiding component 136 is connected between the air outlet of the first centrifugal fan 131 and the first air inlet 1291 of the air injecting component 120, and is used for guiding the air flow discharged by the first centrifugal fan 131 into the air supplying cavity 125.
The second air supply assembly includes: the second centrifugal fan 151 and the second air guide 156. The second centrifugal fan 151 is used as a power source for the second heat exchange airflow to flow, and may be configured such that ambient air enters from the air inlet 116 and exchanges heat with the heat exchanger 140, is discharged downstream through the second centrifugal fan 151, and finally enters the air supply cavity 125 through the second air inlet 1292, and then the air injection component 120 sends out the air outside the indoor unit 100. The second air guiding member 156 is connected between the air outlet of the second centrifugal fan 151 and the second air inlet 1292 of the air injecting member 120, and is used for guiding the air flow discharged from the second centrifugal fan 151 into the air supplying cavity 125.
Fig. 7 is a schematic diagram of internal components of a wall-mounted air conditioner indoor unit 100 according to one embodiment of the present invention. The wall-mounted air conditioner indoor unit 100 further includes a partition 143 inside, and the wall-mounted air conditioner indoor unit 100 includes a partition 143 inside, and the partition 143 is used for isolating air flows before and after heat exchange. The partition 143 includes a longitudinal plate portion 1431 disposed parallel to the front panel 114, and a middle portion of the longitudinal plate portion 1431 is recessed rearward to define a heat exchanger accommodating chamber with the front panel 114 for disposing the heat exchanger 140. The heat exchanger 140 is disposed in the heat exchanger accommodating chamber.
In some alternative embodiments, the air intakes 116 on the top wall and side walls of the enclosure 112 may each be disposed on a portion between the longitudinal plate portion 1431 and the front panel 114, i.e., the air intakes 116 may each be disposed in front of the enclosure top wall and side walls so as to be in communication with the heat exchanger receiving cavity.
More preferably, the partition 143 further includes a transverse plate portion 1432 contiguous with the top of the longitudinal plate portion 1431 and spaced from the top of the shell 112, the transverse plate portion 1432 defining an air intake passage from the top air intake 116 to the heat exchanger receiving chamber. After entering from the top air inlet 116, the outside air enters the heat exchanger accommodating chamber forward along the lateral plate portion 1432 to exchange heat with the heat exchanger 140. The air inlet 116 of the top wall of the housing 112 is disposed above the lateral plate portion 1432, thereby enlarging the area of the air inlet 116.
The longitudinal plate portion 1431 is provided at its center with a first through hole 145 through which the first air collecting port 132 of the first centrifugal fan 131 passes and a second through hole 146 through which the second air collecting port 152 of the second centrifugal fan 151 passes. The first and second centrifugal fans 131 and 151 suck air in the heat exchanger accommodating chamber to exchange heat with the heat exchanger 140, thereby forming first and second heat exchange airflows, respectively. The first impeller 133 and the first volute 134 of the first centrifugal fan 131 are disposed in a space defined by the longitudinal plate portion 1431 and the casing 112, and an exhaust port of the first volute 134 faces a side wall of the housing 110; the inlet of the first air guide 136 is connected to the outlet of the first volute 134.
Similarly, the second impeller 153 and the second scroll 154 of the second centrifugal fan 151 are disposed in a space defined by the longitudinal plate portion 1431 and the casing 112, and an exhaust port of the second scroll 154 faces a side wall of the other side of the housing 110; the inlet of the second air directing member 156 is connected to the outlet of the second volute 154.
Fig. 8 is a schematic diagram illustrating a structure in which a first air supply unit and a second air supply unit supply air to an air injection unit 120 in a wall-mounted air conditioner indoor unit 100 according to an embodiment of the present invention. The first air supply assembly includes: first centrifugal fan 131 and first wind-guiding part 136, the second air supply subassembly includes: the second centrifugal fan 151 and the second air guide 156. In order to ensure the air jet speed of the air jet member 120, the first air supply assembly and the second air supply assembly of this embodiment both use centrifugal fans as power sources for heat exchange air flow.
The first centrifugal fan 131 accelerates the gas according to the principle that kinetic energy is converted into potential energy by using the first impeller 133 rotating at a high speed, and then decelerates and changes the flow direction, so that the kinetic energy is converted into potential energy. The first centrifugal fan 131 generally includes a first air collection port 132, a first impeller 133, and a first volute 134. The first air collecting port 132 of the first centrifugal fan 131 is used to ensure that the air flow can uniformly fill the inlet interface of the first impeller 133, so as to reduce the flow loss, in this embodiment, the first air collecting port 132 of the first centrifugal fan 131 tapers towards the first impeller 133, forming a flare, and the air exchanging heat with the heat exchanger 140 in the heat exchanger accommodating cavity can be sucked into the first impeller 133 as much as possible. When the first impellers 133 of the first centrifugal fan 131 are driven by the first high-speed motor 135 to rotate along with the shaft, gas between the first impellers 133 rotates along with the first impellers 133 to obtain centrifugal force, the gas is thrown out of the first impellers 133 and enters the first volute 134, and the gas pressure increase in the first volute 134 is guided to be discharged. After the air between the blades is exhausted, negative pressure is formed; the heat exchanger 140 air in the heat exchanger receiving chamber outside the first air collecting port 132 is continuously sucked to form a continuous air flow.
The first impeller 133 and the first scroll 134 of the first centrifugal fan 131 are disposed in a space defined by the longitudinal plate portion 1431 and the casing 112, and an exhaust port of the first scroll 134 faces a side wall of the casing 110 on the first air inlet 1291 side; the inlet of the first air guide 136 is connected to the outlet of the first volute 134. The first scroll 134 is spirally shaped, and sucks up air thrown out from the first impeller 133, and converts the dynamic pressure of the air flow into static pressure by the gradually widening sectional area.
The first air guiding component 136 is connected between the air outlet of the first centrifugal fan 131 and the first air inlet 1291, and is used for guiding the air flow discharged by the first centrifugal fan 131 into the air supply cavity 125. The first wind guide component 136 may include a first drainage section 137 and a first wind supply section 138.
The first drainage segment 137 has an air inlet of the first air guiding component 136, and at least part of the segment body of the first drainage segment 137 is spiral to guide the air flow direction discharged by the first centrifugal fan 131 downward, and the first drainage segment 137 tapers from the air inlet of the first air guiding component 136 along the air flow direction, so that the air speed of the air flow entering the first air collecting cavity 139 of the first air supplying segment 138 is increased.
The first air supply section 138 is connected to the first drainage section 137, and defines a first air collecting chamber 139 therein to receive the air flow discharged from the first centrifugal fan 131, and the first air supply section 138 is provided with a first air inlet 1291, so that the air flow of the first air collecting chamber 139 is supplied to the air supply chamber 125. The first air supply section 138 forms a volute shape along the air outlet direction of the first drainage section 137, reduces the wind resistance of the air flow in the first air collection cavity 139, enables the air flow to form vortex in the first air collection cavity 139, and can smoothly lead to the air supply cavity 125 from the first air collection cavity 139.
The first drainage section 137 may be disposed at one side of the first centrifugal fan 131, and because of the space limitation of the partition 143, the front-rear distance of the first drainage section 137 is smaller, and the first air supply section 138 is located below the heat exchanger accommodating chamber (i.e. below the partition 143 and the heat exchanger 140), so that the distance in the front-rear direction is greater than that of the first drainage section 137, and the air outlet of the first air supply section 138 is disposed at the front of the first air collecting chamber 139 adjacent to the air injection member 120. The first air inlet 1291 of the air jet assembly 120 is disposed on the annular outer wall 122 of the arcuate section 129 on the side of the first air guide assembly 136 of the two arcuate sections 129.
The structure of the second air supply assembly is identical to that of the first air supply assembly. Specifically, the second centrifugal fan 151 generally includes a second gas collection port 152, a second impeller 153, and a second volute 154. The second air collecting port 152 of the second centrifugal fan 151 serves to ensure that the air flow uniformly fills the inlet interface of the second impeller 153, reducing flow losses. The second air collecting port 152 of the second centrifugal fan 151 tapers towards the second impeller 153 to form a bell mouth, so that air exchanging heat with the heat exchanger 140 in the heat exchanger accommodating cavity can be sucked into the second impeller 153 as much as possible. When the second impeller 153 of the second centrifugal fan 151 is driven by the second high-speed motor 155 to rotate along with the shaft, gas between the second impellers 153 rotates along with the second impeller 153 to obtain centrifugal force, the gas is thrown out of the second impeller 153 and enters the second volute 154, and the gas pressure increase in the second volute 154 is guided and discharged. After the air between the blades is exhausted, negative pressure is formed; the heat exchanger 140 air in the heat exchanger receiving chamber outside the second air collecting port 152 is continuously sucked to form a continuous air flow.
The second impeller 153 and the second scroll 154 of the second centrifugal fan 151 are disposed in a space defined by the longitudinal plate portion 1431 and the casing 112, and an exhaust port of the second scroll 154 faces a side wall of the housing 110 on the second air intake 1292 side; the inlet of the second air directing member 156 is connected to the outlet of the second volute 154. The second scroll 154 is formed in a spiral shape, and sucks up air thrown from the second impeller 153 and converts a dynamic pressure of the air flow into a static pressure by a widened sectional area.
The second air guiding member 156 is connected between the air outlet of the second centrifugal fan 151 and the second air inlet 1292, and is used for guiding the air flow discharged from the second centrifugal fan 151 into the air supply cavity 125. The second air guide member 156 may include a second drainage section 157 and a second air supply section 158.
The second drainage section 157 has an air inlet of the second air guiding member 156, and at least a part of the second drainage section 157 is spirally formed to guide the air flow direction discharged from the second centrifugal fan 151 downward, and the second drainage section 157 is tapered from the air inlet of the second air guiding member 156 in the air flow direction, thereby accelerating the air speed of the air flow entering the second air collecting chamber 159 of the second air supplying section 158.
The second air supply section 158 is connected with the second drainage section 157, and defines a second air collection cavity 159 therein to receive the air flow discharged from the second centrifugal fan 151, and the second air supply section 158 is provided with an air inlet 1292 facing the second air inlet, so that the air flow of the second air collection cavity 159 is supplied to the air supply cavity 125. The second air supply section 158 forms a volute shape along the air outlet direction of the second drainage section 157, so that the wind resistance of the air flow in the second air collection cavity 159 is reduced, the air flow forms vortex in the second air collection cavity 159, and the air flow can smoothly pass from the second air collection cavity 159 to the air supply cavity 125.
The second flow guiding section 157 may be disposed at one side of the second centrifugal fan 151, and the front-rear distance of the second flow guiding section 157 is smaller due to the space limitation of 143, and the second air supplying section 158 is disposed below the heat exchanger accommodating chamber (i.e. below the partition 143 and the heat exchanger 140), so that the front-rear distance thereof is greater than that of the second flow guiding section 157, and the air outlet of the second air supplying section 158 is disposed at the front of the second air collecting chamber 159 adjacent to the air injecting part 120. The second air inlet 1292 of the air jet assembly 120 is disposed on the annular outer wall 122 of the arcuate section 129 on the side of the second air guide assembly 156 of the two arcuate sections 129.
The first air supply assembly and the second air supply assembly are mutually matched and supply air together, so that air flow in the air supply cavity 125 is more uniform, air outlets at the positions of the air nozzles 124 are uniform, surrounding air can be uniformly driven, and the stability and uniformity of air supply are further improved.
In addition, under some special working conditions, the first air supply assembly and the second air supply assembly can be started alternatively or with different wind power, so that the air outlet meets the requirements of the special working conditions, and the control is more flexible. For example, when the temperature difference between the ambient temperature and the set temperature is small, or the user sets to send air in a low-wind mode, one of the first air-sending component and the second air-sending component can be selected to be started, and two air-sending components do not need to be started at the same time; in addition, the first air supply assembly and the second air supply assembly can be alternately started, so that the effect similar to the effect of swinging air is achieved. In addition, a wind shield may be disposed in the air supply cavity 125 to divide the air supply cavity 125 into two chambers, wherein one chamber is communicated with the first air inlet 1291 and is used for receiving the first heat exchange air flow from the first air supply assembly, and the other chamber is communicated with the second air inlet 1292 and is used for receiving the second heat exchange air flow from the second air supply assembly.
Because the first air supply assembly and the second air supply assembly supply air to the air injection component 120 together, the control mode is more flexible and convenient, the air supply requirements of different working conditions can be met, and the use experience of a user is greatly improved.
The air supply opening 117 below the casing 110 of the wall-mounted air conditioner indoor unit 100 of this embodiment is used for arranging the annular air injection component 120, so that the air flow passing through the heat exchanger 140 exchanges heat is ejected from the air injection opening 124 of the air injection component 120, the ambient air around the air supply opening 117 is sucked and mixed with the heat exchange air flow with severe ambient temperature difference, thereby ensuring that the sent air flow is soft, the feeling of blowing to a human body is more comfortable, on one hand, the air supply amount of the indoor unit 100 is increased, the flow of the indoor air is accelerated, the indoor temperature can be uniformly reduced as a whole, and the air outlet of the wall-mounted air conditioner indoor unit 100 of this invention is oblong (also referred to as a runway shape), is arranged below the casing 110, the overall structure is relatively similar to that of the existing traditional wall-mounted indoor unit, the wall-mounted air conditioner indoor unit is easy to accept by users, the existing traditional wall-mounted indoor unit is easy to replace, the installation position is flexible, the internal component structure is compact, the space in the casing 110 is fully utilized, and the wall-mounted air conditioner indoor unit can be thinner.
When the first air supply assembly is started to supply air, the heat exchange airflow of the wall-mounted air conditioner indoor unit 100 of the embodiment flows to: after the first centrifugal fan 131 and the second centrifugal fan 151 are started, air around the indoor unit 100 is sucked into the heat exchanger accommodating chamber from the air inlet 116, and exchanges heat with the heat exchanger 140. A part of the air flow after heat exchange enters the first centrifugal fan 131, is accelerated by the first impeller 133, enters the first air guide component 136 through the first volute 134, is guided by the first drainage segment 137 of the first air guide component 136, and enters the first air collection cavity 139 of the first air supply segment 138. The air flow enters the annular air supply cavity 125 from the first air inlet 1291 through the air outlet of the first air supply section 138 at the first air collection cavity 139 in a swirling manner, thereby forming a first heat exchange air flow.
The other part of the air flow after heat exchange enters the second centrifugal fan 151, is accelerated by the second impeller 153, enters the second air guide component 156 through the second volute 154, is guided by the second drainage section 157 of the second air guide component 156, and enters the second air collection cavity 159 of the second air supply section 158. The air flow enters the annular air supply cavity 125 from the second air inlet 1292 at the second air collection cavity 159 in a swirling flow pattern eventually passing through the air outlet of the second air supply section 158, thereby forming a second heat exchange air flow.
After entering the air supply cavity 125, the first heat exchange air flow and the second heat exchange air flow are ejected from the air jet 124 at a high speed under the guidance of the rear side edge 126 of the annular inner wall 121, so that the air in the air circulation area at the rear part of the air supply opening 117 is driven to be sucked and pass through the air suction hole 123 of the air jet component 120, and is mixed in front of the indoor unit 100 and then is sent into a room, the air outlet volume is greatly increased, and meanwhile, the air flow after heat exchange is mixed with ambient air, becomes cool and uncooled soft air flow, and the flow of indoor air is accelerated.
In the case where the first air blowing unit and the second air blowing unit are independently activated, the flow direction of each air flow is similar to that described above, and the air supply chamber 125 sends out the air flow from the first air blowing unit or the second air blowing unit.
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 (8)
1. An indoor unit of a wall-mounted air conditioner, comprising:
the shell comprises a housing and a front panel arranged in front of the housing, air inlets are respectively formed in the top wall and the side wall of the housing, an oblong air supply opening is formed in the lower portion of the front panel, and the shell is arranged obliquely downwards relative to a supporting wall body for fixing the wall-mounted air conditioner indoor unit so that the air supply opening faces obliquely downwards;
the heat exchanger is arranged in the shell and close to the front panel;
the air injection component is arranged in the air supply opening and comprises an annular inner wall and an annular outer wall, wherein an air suction hole is formed in the inner side of the annular inner wall, an air supply cavity is formed in the annular outer wall and the annular inner wall in a combined mode, an air injection port is formed in the edge, connected with the annular outer wall, of the annular inner wall, a first air inlet and a second air inlet for receiving heat exchange air flow are formed in the two transverse ends of the annular outer wall respectively, the air injection port is used for injecting air of the air supply cavity forwards and driving ambient air in the air suction hole to be sent out obliquely downwards, the air suction hole is communicated with the surrounding environment at the upstream of the air supply direction, a wind shield is arranged in the air supply cavity and divides the air supply cavity into two cavities, one cavity is communicated with the first air inlet and used for receiving the first heat exchange air flow from the first air supply assembly, and the other cavity is communicated with the second air inlet and used for receiving the second heat exchange air flow from the second air supply assembly; the first air supply assembly and the second air supply assembly are transversely arranged at the rear of the heat exchanger at intervals, wherein the first air supply assembly is used for generating first heat exchange airflow which enters from the air inlet and is supplied into the air supply cavity through the first air inlet after exchanging heat with the heat exchanger; the second air supply assembly is used for generating second heat exchange air flow which enters from the air inlet and is supplied into the air supply cavity through the second air inlet after exchanging heat with the heat exchanger;
The baffle, it includes being parallel to the longitudinal plate portion that the front panel set up, the middle part of longitudinal plate portion is recessed backward, in order with be used for arranging between the front panel the heat exchanger holds the chamber, the air intake of housing sidewall vertically set up in the housing sidewall is close to the edge of front panel, in order to communicate in the heat exchanger holds the chamber, the baffle still include with the top of longitudinal plate portion meet and with the horizontal plate portion that the housing top interval set up, horizontal plate portion defines the follow the air intake to the air inlet passageway that the heat exchanger held the chamber, the air intake of housing roof set up in the top of horizontal plate portion.
2. The wall-mounted air conditioner indoor unit of claim 1, further comprising:
one end of the fixing frame is fixedly connected with the back of the housing, and the other end of the fixing frame is used for being fixed on the supporting wall; and is also provided with
At least a part of the lower edge of the back of the housing forms a chamfer so as to be attached to the support wall by the chamfer after the fixing frame is fixed with the support wall, thereby supporting the indoor unit.
3. The wall-mounted air conditioner indoor unit of claim 2, wherein
The housing is disposed at an inclination angle range of 5 to 30 degrees with respect to the wall.
4. The wall-mounted air conditioner indoor unit of claim 1, wherein
The rear side edge of the annular inner wall is recessed toward the interior of the air supply cavity, and the annular outer wall has an outward flange at a position opposite to the rear side edge of the annular inner wall, so that a gap between the annular outer wall and the rear side edge of the annular inner wall forms the air jet.
5. The indoor unit of wall-mounted air conditioner as recited in claim 4, wherein
The annular inner wall extending forwardly from its rear side edge to form a continuous outwardly expanding coanda surface; and is also provided with
The section of the part of the annular outer wall, which is positioned at the rear side of the air injection component, is spiral, so that the air flow of the air supply cavity is ejected out from the air injection port along the annular outer wall, is sent out along the coanda surface formed by the annular inner wall, and drives the ambient air behind the air supply port to be pumped out.
6. The indoor unit of wall-mounted air conditioner as recited in claim 4, wherein
The first air supply assembly includes: the first centrifugal fan is used as a power source of the first heat exchange airflow, and the first air guide component is connected between an exhaust port and the first air inlet of the first centrifugal fan so as to guide the airflow exhausted by the first centrifugal fan into the air supply cavity;
The second air supply assembly includes: the second centrifugal fan is used as a power source of the second heat exchange airflow, and the second air guide component is connected between an exhaust port of the second centrifugal fan and the second air inlet so as to guide the airflow exhausted by the second centrifugal fan into the air supply cavity.
7. The wall-mounted air conditioner indoor unit of claim 6, wherein
The middle part of the longitudinal plate part is also provided with a first through hole and a second through hole which are transversely arranged at intervals,
the impeller and the volute of the first centrifugal fan are arranged in a space defined by the longitudinal plate part and the housing, the exhaust port of the volute of the first centrifugal fan faces the side wall of the housing on one side of the first air inlet, the exhaust port of the volute of the first centrifugal fan is connected with the air inlet of the first air guide component, and the air collecting port of the first centrifugal fan penetrates out of the first through hole so as to suck air from the heat exchanger accommodating cavity to form the first heat exchange airflow;
the impeller and the volute of the second centrifugal fan are also arranged in the space defined by the longitudinal plate part and the housing, the exhaust port of the volute of the second centrifugal fan faces the side wall of the housing on one side of the second air inlet, the exhaust port of the volute of the second centrifugal fan is connected with the air inlet of the second air guide component, and the air collecting port of the second centrifugal fan penetrates out from the second through hole so as to suck air from the heat exchanger accommodating cavity to form the second heat exchange airflow.
8. The wall-mounted air conditioner indoor unit of claim 7, wherein
The first wind-guiding part includes: a first flow guiding section having an air inlet of the first air guiding member, and at least a part of the first flow guiding section being spirally shaped to guide an air flow direction discharged from the first centrifugal fan downward, and the first flow guiding section tapering from the air inlet of the first air guiding member in the air flow direction; the first air supply section is connected with the first drainage section, a first air collection cavity is defined in the first air supply section and used for receiving air flow discharged by the first centrifugal fan, and a first air outlet connected with the first air inlet is formed in the first air supply section so that the air flow of the first air collection cavity is supplied to the air supply cavity; the first air supply section forms a volute shape along the air outlet direction of the first drainage section, so that the wind resistance of the first heat exchange air flow in the first air collection cavity is reduced; and is also provided with
The second air guiding member includes: a second flow guiding section having an air inlet of the second air guiding member, and at least a part of the second flow guiding section being spirally shaped to guide an air flow direction discharged from the second centrifugal fan downward, and the second flow guiding section tapering from the air inlet of the second air guiding member in the air flow direction; the second air supply section is connected with the second drainage section, a second air collection cavity is defined in the second air supply section to receive air flow exhausted by the second centrifugal fan, a second air outlet connected with the second air inlet is formed in the second air supply section, so that air flow in the second air collection cavity is supplied to the air supply cavity, the second air supply section forms a volute along the air outlet direction of the second drainage section, and wind resistance of the second heat exchange air flow in the second air collection cavity is reduced.
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| CN201711048300.7A CN108050586B (en) | 2017-10-31 | 2017-10-31 | Indoor unit of wall-mounted air conditioner |
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| CN108151136B (en) * | 2017-11-20 | 2020-04-24 | 青岛海尔空调器有限总公司 | Wall-mounted air conditioner indoor unit |
| CN107906604B (en) * | 2017-11-20 | 2020-04-14 | 青岛海尔空调器有限总公司 | Wall-mounted air conditioner indoor unit |
| CN107894082B (en) * | 2017-11-20 | 2020-04-14 | 青岛海尔空调器有限总公司 | Wall-mounted air conditioner indoor unit |
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| CN205825235U (en) * | 2016-06-17 | 2016-12-21 | 美的集团武汉制冷设备有限公司 | Wall-hanging air conditioner indoor unit and air-conditioner |
| CN106765569A (en) * | 2016-12-16 | 2017-05-31 | 奥克斯空调股份有限公司 | Air conditioner |
| CN107917464A (en) * | 2017-09-28 | 2018-04-17 | 青岛海尔空调器有限总公司 | Wall-hanging indoor unit of air conditioner |
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