CN107860061B - Indoor unit of wall-mounted air conditioner - Google Patents
Indoor unit of wall-mounted air conditioner Download PDFInfo
- Publication number
- CN107860061B CN107860061B CN201711046164.8A CN201711046164A CN107860061B CN 107860061 B CN107860061 B CN 107860061B CN 201711046164 A CN201711046164 A CN 201711046164A CN 107860061 B CN107860061 B CN 107860061B
- Authority
- CN
- China
- Prior art keywords
- air
- wall
- air supply
- heat exchange
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003570 air Substances 0.000 claims abstract description 763
- 238000002347 injection Methods 0.000 claims abstract description 56
- 239000007924 injection Substances 0.000 claims abstract description 56
- 239000012080 ambient air Substances 0.000 claims abstract description 18
- 238000005192 partition Methods 0.000 claims description 12
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000712 assembly Effects 0.000 description 7
- 238000000429 assembly Methods 0.000 description 7
- 238000007664 blowing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 238000005507 spraying Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 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
- 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
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
- F24F1/0043—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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/081—Air-flow control members, e.g. louvres, grilles, flaps or guide plates for guiding air around a curve
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
The invention provides a wall-mounted air conditioner indoor unit, which comprises: the shell is provided with a housing and a front panel, the front panel is provided with an air inlet, and an oblong air supply outlet is arranged below the air inlet; the heat exchanger comprises a first heat exchange section and a second heat exchange section, wherein the first heat exchange section is arranged at a position close to the front panel, and the second heat exchange section is arranged at a position close to the top wall of the housing; the air injection component is arranged in the air supply opening and is used for jetting heat exchange air flow in the air injection component forwards and driving ambient air to be sent forwards, and the first air supply component and the second air supply component are transversely arranged below the heat exchanger at intervals and are respectively used for generating heat exchange air flow which enters from the front air inlet and is supplied from one side of the air injection component after exchanging heat with the heat exchanger. The scheme increases the air supply quantity, ensures that the indoor temperature is wholly and uniformly reduced, has large air inlet area and ensures the smoothness of heat exchange air flow.
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, an air inlet is formed in the front panel, and an oblong air supply outlet is formed below the air inlet;
the heat exchanger is arranged in the shell and comprises a first heat exchange section and a second heat exchange section, wherein the first heat exchange section is arranged at a position close to the front panel, and the second heat exchange section is arranged at a position close to the top wall of the housing;
The air injection component is arranged in the air supply opening, an air injection opening is formed in the inner peripheral wall of the air injection component, and is used for injecting heat exchange air flow in the air injection component forwards and driving ambient air in an air suction hole defined by the inner peripheral wall of the air injection component to be sent forwards, 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 below the heat exchanger at intervals, and the first air supply assembly is used for generating first heat exchange airflow which enters from the air inlet and is supplied to the air injection component 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 to the air injection component after heat exchange with the heat exchanger.
Optionally, the air injection component includes an annular inner wall and an annular outer wall, wherein the annular inner wall defines an air exhaust hole on the inner side, the annular outer wall and the annular inner wall together define an air supply cavity, and edges of the annular outer wall connected with the annular inner wall form air injection ports, the annular outer wall is provided with a first air inlet and a second air inlet for receiving heat exchange air flow on two transverse ends respectively, and
The first air supply assembly is connected with the first air inlet so as to supply first heat exchange air flow to the air supply cavity through the first air inlet, and the second air supply assembly is connected with the second air inlet so as to supply second heat exchange air flow to the air supply cavity through the second air inlet.
Optionally, the rear side edge of the annular inner wall is recessed into the air supply chamber, 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 an air jet; and
The annular inner wall extending 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 after the air flow of the air supply cavity is sprayed out from the air injection port along the annular outer wall, the air flow is sent out forwards along the coanda surface formed by the annular inner wall, and the air flow drives the ambient air behind the air supply port to be pumped out.
Optionally, the air injection component comprises two spaced horizontal sections and two arc sections connected with the two horizontal sections, so that the air injection component integrally forms an oblong shape matched with the air supply outlet, and the annular outer walls of the two arc sections are respectively provided with a first air inlet and a second air inlet.
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 is used as a power source of second heat exchange airflow, and the second air guide component is connected between an exhaust port and a second air inlet of the second centrifugal fan so as to guide the airflow exhausted by the second centrifugal fan into the air supply cavity.
Optionally, the wall-mounted air conditioner indoor unit further includes: a partition plate for separating heat exchange front and rear air, the partition plate including a longitudinal plate portion disposed parallel to the front panel, a middle portion of the longitudinal plate portion being recessed rearward to define a first heat exchanger accommodating chamber with the front panel for disposing a first heat exchange section therebetween, and
The partition plate further comprises a transverse plate part connected with the top of the longitudinal plate part and arranged at intervals with the top of the housing, and the middle part of the transverse plate part is recessed downwards to define a second heat exchanger accommodating cavity for arranging a second heat exchange section with the top wall of the housing, and the second heat exchanger accommodating cavity is communicated with the first heat exchanger accommodating cavity.
Optionally, the backward concave part of the longitudinal plate part is further provided with a first through hole and a second through hole which are transversely arranged at intervals; and
The impeller and the 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 component, and an air collecting port of the first centrifugal fan penetrates out of the first through hole so as to suck air from the first 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 first 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, and the air flow direction discharged by the first centrifugal fan is guided downwards; 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; and
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, and the air flow direction discharged by the second centrifugal fan is guided downwards; the second air supply section is connected with the second drainage section, and a second air collection cavity is defined in the second air supply section and used for receiving air flow discharged by the second centrifugal fan, and 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.
Optionally, the first drainage section is gradually reduced from the air inlet of the first air guide component along the air flow direction, the first air supply section forms a volute shape along the air outlet direction of the first drainage section, and the wind resistance of the first heat exchange air flow in the first air collection cavity is reduced; and
The second drainage section gradually tapers from the air inlet of the second air guide component along the air flow direction, the second air supply section forms a volute shape 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.
Alternatively, the casing and the lower portion of the front panel form a front-rear penetrating air supply port, and the rear side of the casing forms the position of the air supply port is recessed forward so that there is an air circulation area behind the air supply port.
The wall-mounted air conditioner indoor unit has the advantages that the air inlet is formed in the middle upper part of the front panel, the oblong air supply opening is formed in the lower part of the air inlet, the annular air injection assembly is arranged, air flow subjected to heat exchange by the heat exchanger is sprayed out of the air injection opening of the air injection assembly, ambient air around the air supply opening is sucked and mixed with heat exchange air flow with severe temperature difference of the ambient environment, so 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 is increased, the flow of indoor air is accelerated, the indoor temperature can be uniformly reduced, 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 an integral structure which is similar to that of the traditional wall-mounted air conditioner 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 the installation position is flexible. In addition, the air inlet is arranged on the front panel of the heat exchanger, so that the area of the air inlet is large, the smoothness of heat exchange air flow is ensured, the air before and after heat exchange is separated by the partition plate, and the whole shell is attractive.
Furthermore, according to the wall-mounted air conditioner indoor unit, external air enters the heat exchanger accommodating cavity where the heat exchanger is located from the upper part in front and is sent out from the lower part, the air flow is not returned because of the long distance of the jet air flow, the smooth flow of the heat exchange air flow is ensured by increasing the area of the air inlet and reducing the circulation distance of the air flow in the indoor unit, the ash falling problem of the upper opening is avoided, the structure of the indoor unit is further compact, and the air before and after heat exchange is separated by the partition plate.
Further, the wall-mounted air conditioner indoor unit is divided into two sections, namely the first heat exchange section longitudinally attached to the front panel and the second heat exchange section transversely or obliquely attached to the top wall of the housing, so that the heat exchange area is increased, and the heat exchange efficiency is improved. In addition, the first heat exchange section and the second heat exchange section can be selectively opened according to the operation mode of the indoor unit so as to meet different heat exchange requirements.
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 a schematic exploded view of an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention;
Fig. 3 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. 4 is a front view of the air jet assembly shown in FIG. 3;
FIG. 5 is a schematic cross-sectional airflow diagram taken along section line A-A in FIG. 4;
fig. 6 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. 7 is a schematic view illustrating a structure in which a first air supply unit and a second air supply unit supply air to an air injection 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, and fig. 2 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 casing 112 is formed of a top wall, side walls, and a rear back, which together define a space for accommodating the internal components of the wall-mounted air conditioner indoor unit 100, and the front panel 114 is disposed in front of the casing 112, thereby closing the internal space of the casing 112. The front panel 114 is provided with an air inlet 116 at a middle upper portion thereof, and an oblong air outlet 117 is provided at a lower portion of the air inlet 116. Wherein the air supply opening 117 is oblong and communicates with the surrounding environment upstream in the air supply direction.
The air inlet 116 is formed in the middle upper portion of the front panel 114, and external ambient air can enter the indoor unit 100 from the middle upper portion of the front panel 114, so that the air can smoothly enter the heat exchanger accommodating cavity where the heat exchanger 140 is located 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. Compared with the prior art that the air inlet is generally arranged at the top, dust easily falls into the indoor unit in an idle state, the indoor unit 100 of the embodiment is capable of air-intaking from the front, the area of the air-intaking area is large, and the problem of dust falling is avoided. Outside air enters the heat exchanger accommodating chamber where the heat exchanger 140 is located from the upper middle portion of the front panel 114 of the indoor unit 100, is sent out from the lower air supply opening 117, does not cause backflow of the air supply flow due to the long distance of the air supply flow, and increases the area of the air inlet 116 and reduces the circulation distance of the air flow in the indoor unit. In some alternative embodiments, the air inlet 116 may be formed by a grill, and the grill may be inclined such that the outside air draws air obliquely downward, avoiding affecting the supply of air from the air outlet 117.
In some preferred embodiments, the air supply opening 117 may be disposed through a lower portion of the housing 110 (the casing 112 and the front panel 114 are respectively provided with oblong through holes) so as to form the air supply opening 117. The rear side of the housing 112 forms the air supply opening 117 to be recessed forward, so that an air circulation area 118 is formed behind the air supply opening 117, so that the interior of the air supply opening 117 is communicated with the air circulation area 118, and the heat exchange gas sprayed by the air spraying component 120 can suck ambient air from the air circulation area 118 to be mixed, so that the temperature difference between the mixed air flow and the surrounding environment is small, the air supply quantity is softer, and the flow of indoor air is accelerated.
In another alternative structure, the air injecting part 120 is disposed in the air supplying opening 117, and is integrally located at a position in front of the lower part of the housing 110, and the housing 110 may be provided with a hollowed-out area in the rear part of the air injecting part 120, that is, upstream in the air supplying direction, which is communicated with the surrounding environment, so that the heat exchanging air sprayed by the air injecting part 120 may suck the ambient air through the hollowed-out area to mix, in which case, the air supplying opening 117 is only disposed on the front panel 114, and the hollowed-out area is formed at the rear side of the bottom wall of the casing 112.
The heat exchanger 140 is disposed inside the housing 110 and 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 includes a first heat exchanging section 1401 and a second heat exchanging section 1402, wherein the first heat exchanging section 1401 is disposed at a position close to the front panel 1402, the second heat exchanging section 1402 is disposed at a position close to the top wall of the housing 112, the heat exchanger 140 adopts a two-stage structure, a heat exchanging area is enlarged, heat exchanging efficiency is improved, and the first heat exchanging section 1401 and the second heat exchanging section 1402 can be connected in parallel or in series through a refrigerant line. When the parallel structure is adopted, the first heat exchange section 1401 and the second heat exchange section 1402 can be selectively used according to the operation mode of the indoor unit 100, for example, in a normal mode, only the first heat exchange section 1401 is turned on, and in the case that the first heat exchange section 1401 cannot meet the requirement, the second heat exchange section 1402 is turned on at the same time. In some alternative embodiments, the second heat exchange section 1402 may be inclined to facilitate collection of condensed water.
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.
Fig. 3 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. 4 is a front view of the air injection unit 120 shown in fig. 3, and fig. 5 is a schematic cross-sectional airflow direction view taken along a section line A-A in fig. 4. 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 chamber 125 is sent forward along the coanda surface formed by the annular inner wall 121 and drives the ambient air behind the air supply opening 117 to be drawn out after being ejected from the air injection opening 124 along the annular outer wall 122. 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 is, the faster the expansion speed of the air flow ejected from the air jet 124 is, 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 can ensure 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. 5, 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 and the second air supply assembly are arranged at the rear of the inner space of the shell 110, and the first air supply assembly is used for generating a first heat exchange air flow entering from the air inlet 116 at the upper middle part of the front panel 114 and being 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 at the upper middle portion of the front panel 114, 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 through the air jet 124. 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. 6 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 partition 143 is used for isolating the air flow 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 first heat exchanger accommodating chamber with the front panel 114 for disposing the first heat exchange section 1401 therebetween. The first heat exchange section 1401 is disposed within the first heat exchanger receiving chamber.
The center of the longitudinal plate portion 1431 is recessed rearward to define a first heat exchanger accommodating chamber for disposing the heat exchanger 140 with the front panel 114, and the recessed shape of the center of the longitudinal plate portion 1431 is adapted to the outer shape of the first heat exchange section 1401, so that the first heat exchange section 1401 can be fixed in the first heat exchanger accommodating chamber.
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 middle of the transverse plate portion 1432 being recessed downwardly to define a second heat exchanger receiving chamber with the top wall of the shell 112 for disposing the second heat exchange section 1402. The first heat exchanger accommodating chamber is communicated with the second heat exchanger accommodating chamber. The air flow in the first heat exchanger accommodating cavity and the air flow in the second heat exchanger accommodating cavity can be exchanged, so that the heat exchange area is enlarged, and the heat exchange efficiency is improved.
After entering from the air inlet 116 at the upper part of the front panel 112, a part of the outside air enters the first heat exchanger accommodating cavity to exchange heat with the first heat exchange section 1401, and the other part enters the second heat exchanger accommodating cavity to exchange heat with the second heat exchange section 1402.
After the external air enters from the air inlet 116, the direct heat exchanger accommodating cavity exchanges heat with the first heat exchange section 1401 and/or the second heat exchange section 1402, so that the air inlet distance is short and the wind resistance is small.
The longitudinal plate portion 143 is provided 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 at a portion recessed rearward. The first and second centrifugal fans 131 and 151 suck air in the first 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 143 and the casing 112, and an exhaust port of the first volute 134 faces a side wall of the casing 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 the space defined by the longitudinal plate portion 143 and the casing 112, and the exhaust port of the second scroll 154 faces the 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. 7 is a schematic view 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 first 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 air of the heat exchanger 140 in the first heat exchanger accommodating chamber outside the first air collecting port 132 is continuously sucked, thereby forming 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 143 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 on one side of the first centrifugal fan 131, and because of the space limitation of the longitudinal plate portion 143, the front-rear distance of the first drainage section 137 is smaller, and the first air supply section 138 is located below the first heat exchanger accommodating chamber (i.e., below the longitudinal plate portion 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 in the front portion 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 first 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 air of the heat exchanger 140 in the first heat exchanger accommodating chamber outside the second air collecting port 152 is continuously sucked, thereby forming 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 143 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 1291 facing the second air inlet 1291 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 the longitudinal plate portion 143, and the second air supplying section 158 is disposed below the first heat exchanger accommodating chamber (i.e., below the longitudinal plate portion 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 one side of the air injecting section 120. The second air inlets 1292 of the air jet units 120 are respectively disposed on the annular outer wall 122 of the arc-shaped section 129 located on one side of the second air guiding member 156 of the two arc-shaped 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.
The heat exchange airflow of the wall-mounted air conditioner indoor unit 100 of the present embodiment has the following flow directions: after the first centrifugal fan 131 and the second centrifugal fan 151 are started, air around the indoor unit 100 is sucked into the first heat exchanger accommodating chamber and the second heat exchanger accommodating chamber from the air inlet 116, and exchanges heat with the first heat exchange section 1401 and the second heat exchange section 1402 of 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 first air supply cavity 125 from the first air inlet 1281 through the air outlet of the first air supply section 138 at the first air collection cavity 139 in a vortex-type 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 finally passes through the exhaust port of the second air supply section 158 in a vortex manner in the second air collection chamber 159 from the second air inlet 1292 into the annular air supply chamber 125 and finally out of the air jet 124, 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 guided by the rear side edge 126 of the annular inner wall 121 to be ejected forward from the air jet 124 at a high speed, so that the air in the air circulation area 118 at the rear part of the air supply opening 117 is driven to be sucked through the air suction hole 123 of the air jet component 120, and is mixed in front of the indoor unit 100 and then sent into a room, the air outlet volume is greatly increased, and meanwhile, the air flow after heat exchange is mixed with ambient air and becomes cool and not cool soft air flow, so that 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 (9)
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, wherein an air inlet is formed in the front panel, and an oblong air supply outlet is formed below the air inlet;
the heat exchanger is arranged in the shell and comprises a first heat exchange section and a second heat exchange section, wherein the first heat exchange section is arranged at a position close to the front panel, and the second heat exchange section is arranged at a position close to the top wall of the housing;
The air injection component is arranged in the air supply opening, an air injection opening is formed in the inner peripheral wall of the air injection component, the air injection opening is used for injecting heat exchange air flow in the air injection component forwards and driving ambient air in an air suction hole defined by the inner peripheral wall of the air injection component to be sent forwards, 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 below the heat exchanger at intervals, and the first air supply assembly is used for generating first heat exchange airflow which enters from the air inlet and is supplied to the air injection component 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 to the air injection component after heat exchange with the heat exchanger;
the air injection component comprises an annular inner wall and an annular outer wall, wherein the inner side of the annular inner wall is provided with an air suction hole, the annular outer wall and the annular inner wall are provided with an air supply cavity together, the edge of the annular outer wall connected with the annular inner wall forms the air injection port, and the transverse two ends of the annular outer wall are respectively provided with a first air inlet and a second air inlet for receiving heat exchange air flow;
the air supply cavity is internally provided with a wind shield, the air supply cavity is divided into two chambers, one chamber 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 chamber is communicated with the second air inlet and used for receiving the second heat exchange air flow from the second air supply assembly.
2. The wall-mounted air conditioner indoor unit of claim 1, wherein
The rear side edge of the annular inner wall is recessed towards the interior of the air supply cavity, and the position, opposite to the rear side edge of the annular inner wall, of the annular outer wall is provided with an outward flanging, so that a gap between the annular outer wall and the rear side edge of the annular inner wall forms the air injection port; and
The annular inner wall extending forwardly from its rear side edge to form a continuous outwardly expanding coanda surface; and
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 of the air injection port along the annular outer wall, and then is sent out forwards along the coanda surface formed by the annular inner wall, and the air supply cavity is driven to draw out the ambient air behind the air supply port.
3. The wall-mounted air conditioner indoor unit of claim 1, wherein
The air injection component comprises two sections of spaced horizontal sections and two sections of arc-shaped sections connected with the two sections of horizontal sections, so that the air injection component integrally forms an oblong shape matched with the air supply outlet, and the annular outer walls of the two sections of arc-shaped sections are respectively provided with the first air inlet and the second air inlet.
4. The wall-mounted air conditioner indoor unit of claim 1, 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.
5. The wall-mounted air conditioner indoor unit of claim 4, further comprising:
A partition plate for separating heat exchange front and rear air, the partition plate including a longitudinal plate portion disposed parallel to the front panel, a middle portion of the longitudinal plate portion being recessed rearward to define a first heat exchanger accommodating chamber with the front panel for disposing the first heat exchange section, and
The partition plate further comprises a transverse plate part connected with the top of the longitudinal plate part and arranged at intervals with the top of the housing, the middle of the transverse plate part is recessed downwards to define a second heat exchanger accommodating cavity for arranging the second heat exchange section with the top wall of the housing, and the second heat exchanger accommodating cavity is communicated with the first heat exchanger accommodating cavity.
6. The indoor unit of wall-mounted air conditioner as recited in claim 5, wherein
The backward concave part of the longitudinal plate part is provided with a first through hole and a second through hole which are transversely arranged at intervals, and
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 first 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 first heat exchanger accommodating cavity to form the second heat exchange airflow.
7. The wall-mounted air conditioner indoor unit of claim 6, 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 formed so as to guide an air flow direction discharged from the first centrifugal fan downward; 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; and
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 formed so as to guide an air flow direction discharged from the second centrifugal fan downward; 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 and used for receiving air flow exhausted by the second centrifugal fan, and 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.
8. The wall-mounted air conditioner indoor unit of claim 7, wherein
The first drainage section gradually tapers from the air inlet of the first air guide component along the air flow direction, the first air supply section forms a volute shape along the air outlet direction of the first drainage section, and the wind resistance of the first heat exchange air flow in the first air collection cavity is reduced; and
The second drainage section gradually tapers from the air inlet of the second air guide component along the air flow direction, the second air supply section forms a volute shape 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.
9. The wall-mounted air conditioner indoor unit of claim 1, wherein
The housing and the lower part of the front panel form the air supply port penetrating front and back, and the rear side of the housing forms the air supply port and is concave forwards, so that an air circulation area is arranged behind the air supply port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711046164.8A CN107860061B (en) | 2017-10-31 | 2017-10-31 | Indoor unit of wall-mounted air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711046164.8A CN107860061B (en) | 2017-10-31 | 2017-10-31 | Indoor unit of wall-mounted air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107860061A CN107860061A (en) | 2018-03-30 |
| CN107860061B true CN107860061B (en) | 2024-05-03 |
Family
ID=61698087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711046164.8A Active CN107860061B (en) | 2017-10-31 | 2017-10-31 | Indoor unit of wall-mounted air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107860061B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107894083B (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 |
| CN112113321B (en) * | 2019-06-20 | 2024-10-18 | 青岛海尔智能技术研发有限公司 | Air outlet mechanism and air conditioner |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100079533A (en) * | 2008-12-31 | 2010-07-08 | 엘지전자 주식회사 | Indoor unit of air-conditioner |
| CN102374659A (en) * | 2010-08-06 | 2012-03-14 | 戴森技术有限公司 | Fan assembly |
| CN104033955A (en) * | 2013-03-06 | 2014-09-10 | 广东美的暖通设备有限公司 | Air conditioner indoor unit and air conditioner with same |
| CN204693612U (en) * | 2015-03-31 | 2015-10-07 | 四川长虹电器股份有限公司 | A kind of air-conditioning indoor host computer |
| CN105371362A (en) * | 2015-11-13 | 2016-03-02 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit |
| WO2016029676A1 (en) * | 2014-08-29 | 2016-03-03 | 青岛海尔空调器有限总公司 | Wall-mounted air conditioner indoor unit |
| CN205137697U (en) * | 2015-11-13 | 2016-04-06 | 青岛海尔空调器有限总公司 | Air -conditioning indoor unit |
| CN107747765A (en) * | 2017-09-28 | 2018-03-02 | 青岛海尔空调器有限总公司 | Wall-hanging indoor unit of air conditioner |
-
2017
- 2017-10-31 CN CN201711046164.8A patent/CN107860061B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100079533A (en) * | 2008-12-31 | 2010-07-08 | 엘지전자 주식회사 | Indoor unit of air-conditioner |
| CN102374659A (en) * | 2010-08-06 | 2012-03-14 | 戴森技术有限公司 | Fan assembly |
| CN104033955A (en) * | 2013-03-06 | 2014-09-10 | 广东美的暖通设备有限公司 | Air conditioner indoor unit and air conditioner with same |
| WO2016029676A1 (en) * | 2014-08-29 | 2016-03-03 | 青岛海尔空调器有限总公司 | Wall-mounted air conditioner indoor unit |
| CN204693612U (en) * | 2015-03-31 | 2015-10-07 | 四川长虹电器股份有限公司 | A kind of air-conditioning indoor host computer |
| CN105371362A (en) * | 2015-11-13 | 2016-03-02 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit |
| CN205137697U (en) * | 2015-11-13 | 2016-04-06 | 青岛海尔空调器有限总公司 | Air -conditioning indoor unit |
| CN107747765A (en) * | 2017-09-28 | 2018-03-02 | 青岛海尔空调器有限总公司 | Wall-hanging indoor unit of air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107860061A (en) | 2018-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107655075B (en) | Indoor unit of wall-mounted air conditioner | |
| CN107655076B (en) | Indoor unit of wall-mounted air conditioner | |
| CN108050588B (en) | Indoor unit of wall-mounted air conditioner | |
| CN108151138B (en) | Wall-mounted air conditioner indoor unit | |
| CN107747770B (en) | Indoor unit of wall-mounted air conditioner | |
| CN107747771B (en) | Indoor unit of wall-mounted air conditioner | |
| CN107906598B (en) | Indoor unit of wall-mounted air conditioner | |
| CN108050586B (en) | Indoor unit of wall-mounted air conditioner | |
| CN107747766B (en) | Indoor unit of wall-mounted air conditioner | |
| CN107747765B (en) | Indoor unit of wall-mounted air conditioner | |
| CN107747768B (en) | Indoor unit of wall-mounted air conditioner | |
| CN107906599B (en) | wall-mounted air conditioner indoor unit | |
| WO2019085731A1 (en) | Wall-mounted indoor unit of air conditioner | |
| WO2019085944A1 (en) | Wall-mounted indoor unit of air conditioner | |
| CN107860061B (en) | Indoor unit of wall-mounted air conditioner | |
| CN107860062B (en) | Indoor unit of wall-mounted air conditioner | |
| CN107869784B (en) | Indoor unit of wall-mounted air conditioner | |
| CN107747767B (en) | Indoor unit of wall-mounted air conditioner | |
| CN108036403B (en) | Wall-mounted air conditioner indoor unit | |
| CN107940552B (en) | Indoor unit of wall-mounted air conditioner | |
| CN107917464B (en) | Indoor unit of wall-mounted air conditioner | |
| CN107906605B (en) | Wall-mounted air conditioner indoor unit | |
| CN108036402B (en) | Wall-mounted air conditioner indoor unit | |
| CN107940569B (en) | Indoor unit of wall-mounted air conditioner | |
| CN108072106B (en) | Wall-mounted air conditioner indoor unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240223 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Country or region after: China 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. Country or region before: China |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |