CN108036403B - Wall-mounted air conditioner indoor unit - Google Patents
Wall-mounted air conditioner indoor unit Download PDFInfo
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- CN108036403B CN108036403B CN201711046202.XA CN201711046202A CN108036403B CN 108036403 B CN108036403 B CN 108036403B CN 201711046202 A CN201711046202 A CN 201711046202A CN 108036403 B CN108036403 B CN 108036403B
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- air
- wall
- air supply
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- heat exchange
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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
- F24F1/0022—Centrifugal or radial 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
- F24F1/0018—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
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
The invention provides a wall-mounted air conditioner indoor unit, which comprises: the air conditioner comprises a shell with a housing and a front panel, wherein the top wall and the side wall of the housing are respectively provided with an air inlet, and the lower part of the front panel is provided with an oblong air supply outlet; 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 part is arranged in the air supply port, an air suction hole is defined on the inner side of the annular inner wall of the air injection part, an air supply cavity is defined by the annular outer wall and the annular inner wall together, and an air injection port is formed at the connected edge and is used for injecting air in the air supply cavity forwards and enabling air behind the air supply port to be sucked and pass through the air supply port; and the first air supply assembly and the second air supply assembly are respectively used for generating heat exchange airflow which is supplied to the air supply cavity after exchanging heat with the heat exchanger. The scheme increases the air supply amount and enables 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 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 that cold air is slowly convected with ambient air after being sent into a room, the heat exchange speed is slow, the feeling of rapid cooling cannot be brought to people, and the air supply outlet of an indoor unit is directly blown to people, so that adverse effects can be brought to the health of the users, and air conditioning diseases are easy to appear.
To solve this problem, the indoor unit with the air outlet for jetting air outlet for soft air supply has appeared in the prior art, and it utilizes the smaller air outlet to drive the ambient air to blow out, so that the air after heat exchange and the ambient air are mixed and sent out, however, the requirement of the air outlet for the structure is higher, so that the air outlet is mostly applied to the cabinet type indoor unit with abundant space. In order to meet the structural requirements of the air outlet, the casing of the hanging type indoor unit with the air outlet often needs to be round or in other irregular shapes, so that on one hand, the difference exists between the use habits of users and the existing cognition of the hanging type indoor unit, and the hanging type indoor unit is not easy to accept by the users; on the other hand, the occupied space is large, which brings trouble to the installation of the hanging type indoor unit, so that the hanging type indoor unit applying the jet air outlet can not meet the use requirement of users.
disclosure of Invention
The invention aims to provide a wall-mounted air conditioner indoor unit which is soft in air supply and high in heat exchange speed.
A further object of the present invention is to make the wall-mounted air conditioner indoor unit compact and conform to the user's usage habits.
Another further object of the present invention is to provide a wall-mounted air conditioner that provides uniform airflow from the air jet unit.
In particular, the present invention provides a wall-mounted type air conditioner indoor unit, comprising: the air conditioner comprises a shell and a front panel, wherein the front panel is arranged in front of the shell, the top wall and the side wall of the shell are respectively provided with an air inlet, and the lower part of the front panel is provided with an oblong air supply outlet;
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 part is arranged in the air supply port and comprises an annular inner wall and an annular outer wall, wherein the inner side of the annular inner wall defines an air suction hole, the annular outer wall and the annular inner wall define an air supply cavity together, an air injection port is formed at the edge where the annular outer wall is connected with the annular inner wall, a first air inlet and a second air inlet which are used for receiving heat exchange airflow are respectively arranged at the two transverse ends of the annular outer wall, the air injection port is used for forward jetting the air in the air supply cavity and driving the ambient air in the air suction hole to be forward sent out, and the air suction hole is respectively communicated with the ambient environment at the upstream of the air supply direction; the first air supply assembly is used for generating a first heat exchange airflow which enters from the air inlet and is supplied to 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 to the air supply cavity through the second air inlet after exchanging heat with the heat exchanger.
Optionally, the rear side edge of the annular inner wall is recessed towards the inside of 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 ejection port.
optionally, the annular inner wall extends forwardly from its rear edge to form a continuous outwardly flared coanda surface; and 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 airflow of the air supply cavity is ejected from the air injection port along the annular outer wall, is sent out forwards along the coanda surface formed by the annular inner wall, and is driven to draw out the ambient air behind the air supply port.
Optionally, the air injection part comprises two spaced horizontal sections and two arc-shaped sections connecting the two horizontal sections, so that the air injection part is integrally formed into an oval shape matched with the air supply outlet, wherein the annular outer walls of the two arc-shaped sections are respectively provided with a first air inlet and a second air inlet.
Optionally, the first air supply assembly comprises: the first centrifugal fan is used as a power source of first heat exchange airflow, and the first air guide part is connected between an exhaust port and a first air inlet of the first centrifugal fan so as to guide the airflow discharged by the first centrifugal fan to enter the air supply cavity; the second air supply assembly includes: the second centrifugal fan and a second air guide part are arranged on the air inlet of the second centrifugal fan, the second air guide part is connected between an air outlet of the second centrifugal fan and a second air inlet, and air flow discharged by the second centrifugal fan is guided to enter the air supply cavity.
optionally, the wall-mounted air conditioner indoor unit further includes: a baffle for separating air around the heat transfer, the baffle includes the longitudinal plate portion that is on a parallel with the front panel setting, the middle part of longitudinal plate portion is recessed backward, with and prescribe a limit to be used for arranging the first heat exchanger of first heat transfer section between the front panel and hold the chamber, the air intake of housing lateral wall vertically sets up the edge that is close to the front panel in the housing lateral wall, with communicate with first heat exchanger and hold the chamber, and the baffle still includes the horizontal plate portion that meets and set up with the top interval of housing with the top of longitudinal plate portion, the middle part of horizontal plate portion is recessed downwards, with and housing roof between prescribe a limit to be used for arranging the second heat exchanger of second heat transfer section and hold the chamber, the air intake of housing roof sets up in the top of horizontal plate portion, the second.
Optionally, a first through hole and a second through hole which are arranged at intervals in the transverse direction are further formed in the middle of the longitudinal plate portion, the impeller and the volute of the first centrifugal fan are arranged in a space defined by the longitudinal plate portion 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 guiding component, and the air collecting port of the first centrifugal fan penetrates out of the first through hole to suck air from the first heat exchanger accommodating cavity to form first heat exchange air flow; 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 part, and the air collection port of the second centrifugal fan penetrates out of the second through hole to suck air from the first heat exchanger accommodating cavity to form second heat exchange airflow.
Optionally, the first wind-guiding component comprises: the first flow guiding section is provided with an air inlet of the first air guiding component, at least part of the section body of the first flow guiding section is spiral, 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 collecting cavity is defined in the first air supply section to receive airflow discharged by the first centrifugal fan, and a first exhaust port connected with a first air inlet is formed in the first air supply section to supply the airflow of the first air collecting cavity to the air supply cavity; and the second wind scooping part includes: the second flow guiding section is provided with an air inlet of the second air guiding component, at least part of section bodies of the second flow guiding section are spiral, and the air flow direction discharged by the second centrifugal fan is guided downwards; and the second air supply section is connected with the second drainage section, a second air collecting cavity is defined in the second air supply section to receive the air flow discharged by the second centrifugal fan, and a second air outlet connected with a second air inlet is formed in the second air supply section to supply the air flow of the second air collecting cavity to the air supply cavity.
Optionally, the first flow guiding section gradually shrinks from the air inlet of the first air guiding component along the airflow direction, and the first air supply section forms a volute shape along the air outlet direction of the first flow guiding section, so that the wind resistance of the first heat exchange airflow in the first air collecting cavity is reduced; the second drainage section gradually shrinks from the air inlet of the second air guide component along the air flow direction, and the second air supply section forms a volute shape along the air outlet direction of the second drainage section, so that 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 blowing port penetrating forward and backward, and the rear side of the casing forms a position of the blowing port recessed forward so that there is an air circulation region behind the blowing port.
The wall-mounted air conditioner indoor unit is characterized in that the long circular air supply opening is arranged below the shell and used for arranging the annular air injection part, so that air flow subjected to heat exchange of the heat exchanger is sprayed out of the air injection opening of the air injection part to suck ambient air around the air supply opening and is mixed with heat exchange air flow with severe ambient temperature difference, the air flow sent out is soft, and the feeling of blowing the air flow to a human body is more comfortable.
Furthermore, the wall-mounted air conditioner indoor unit of the invention is characterized in that the top wall and the side wall of the housing are respectively provided with the air inlet, and outside air can smoothly enter the heat exchanger accommodating cavity where the heat exchanger is located, thereby carrying out heat exchange, ensuring smooth heat exchange airflow, utilizing the partition plate to separate air before and after heat exchange, and ensuring the integral appearance of the shell.
Furthermore, the heat exchanger of the wall-mounted air conditioner indoor unit is divided into two sections, namely a first heat exchange section which is longitudinally attached to the front panel and a second heat exchange section which is 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.
Furthermore, the wall-mounted indoor unit of the invention arranges two air supply assemblies in the shell, respectively provides the air flow after heat exchange to the air supply cavities of the air injection part towards the air inlets (the first air inlet and the second air inlet) arranged at the two sides of the air injection part, and finally sprays the air flow from the air injection port, the two air supply assemblies are mutually matched 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 port is uniform, the surrounding air can be uniformly driven, the air supply stability and uniformity 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 respectively and independently controlled according to the working conditions, for example, air supply according to the same air volume is selected; air is respectively supplied 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 different requirements of users are met.
Furthermore, the wall-mounted air conditioner indoor unit has compact structure of internal components, makes full use of the space in the shell and can make the wall-mounted air conditioner indoor unit thinner.
Furthermore, the position and the structure of the components such as the heat exchanger, the centrifugal fan, the air guide component and the like are improved, so that the occupied space is reduced, and the air supply wind resistance can be reduced.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic external view of a wall-mounted type air conditioner indoor unit according to an embodiment of the present invention;
Fig. 2 is a schematic exploded view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;
Fig. 3 is a schematic view of a jet unit of 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 injection unit shown in FIG. 3;
FIG. 5 is a schematic cross-sectional gas flow diagram taken along section line A-A in FIG. 4;
Fig. 6 is a schematic view of the internal components of a wall mounted air conditioner indoor unit according to one embodiment of the present invention; and
Fig. 7 is a schematic diagram illustrating the configuration of the first and second air supply assemblies supplying air to the air injection unit in the wall-mounted air conditioner indoor unit according to an embodiment of the present invention.
Detailed Description
For convenience of description, the directions of "up", "down", "front", "back", "top", "bottom", etc. mentioned in the description are all defined according to the spatial position relationship in the normal working state of the wall-mounted air conditioner indoor unit 100, for example, the side of the wall-mounted air conditioner indoor unit 100 facing the user is front, and the side attached to the installation position is back.
Fig. 1 is a schematic external view of a wall-mounted type air conditioner indoor unit 100 according to an embodiment of the present invention, and fig. 2 is a schematic exploded view of the wall-mounted type air conditioner indoor unit 100 according to an embodiment of the present invention. The wall mounted air conditioner indoor unit 100 may generally include: the air blower comprises a shell 110, an air injection part 120, a heat exchanger 140, a first air supply assembly and a second air supply assembly. Wherein the housing 110 may include: a cover 112 and a front panel 114 disposed in front of the cover 112. The cover case 112 is formed of a top wall, side walls, and a back, which collectively define a space for accommodating internal components, and a front panel 114 is disposed in front of the cover case 112 so as to close the internal space of the cover case 112. The housing 110 is provided with an air inlet 116 and an air outlet 117. The air blowing port 117 is disposed in an oblong shape at the lower portion of the casing 110, and communicates with the ambient environment upstream in the air blowing direction.
The air inlet 116 is formed in the top wall and the side wall of the housing 112. The external environment air can enter the indoor unit 100 from the top and the side, so that the external environment air can smoothly enter the heat exchanger accommodating cavity where the heat exchanger 140 is located for heat exchange, smooth heat exchange airflow is ensured, and the air inlet 116 can be formed by grids, 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 blowing opening 117 may be formed through the lower portion of the housing 110 in a front-rear direction (the cover 112 and the front panel 114 are provided with oblong through holes at corresponding positions, so as to form the air blowing opening 117 passing through the front-rear direction, the rear side of the cover 112 is recessed forward at a position where the air blowing opening 117 is formed, so that an air circulation region 118 is provided behind the air blowing opening 117, so that the inside of the air blowing opening 117 communicates with the air circulation region 118, and the heat exchange air blown out by the air blowing part 120 may draw the ambient air from the air circulation region 118 to mix, so that the temperature difference between the mixed air flow and the ambient environment is small, the mixed air flow is more gentle, and the air blowing amount is larger, and the flow of the indoor.
In addition, the air injection member 120 may be provided at a position closer to the front of the lower portion of the casing 110, and the casing 110 may be provided with a hollow space communicating with the ambient environment at the rear portion of the air injection member 120, that is, at the upstream side in the air blowing direction, and the heat exchange gas blown out by the air injection member 120 may be mixed by sucking the ambient air through the hollow space, in which case, the air blowing port 117 is provided only on the front panel 114, and the hollow space is formed at the rear side of the bottom wall of the housing 112.
And a heat exchanger 140 disposed inside 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 a part of a refrigeration system, which may be implemented by using a compression refrigeration cycle, which uses a compression phase change cycle of a refrigerant in a compressor, a condenser, an evaporator, and a throttling device to implement heat transfer. The refrigerating system can also be provided with a four-way valve to change the flow direction of the refrigerant, so that the indoor unit heat exchanger 140 can be alternately used as an evaporator or a condenser to realize the refrigerating or heating function. Since the compression refrigeration cycle in the air conditioner is well known to those skilled in the art, the operation principle and structure thereof will not be described herein.
The heat exchanger 140 comprises a first heat exchange section 1401 and a second heat exchange section 1402, wherein the first heat exchange section 1401 is arranged at a position close to the front panel 1402, the second heat exchange section 1402 is arranged at a position close to the top wall of the housing 112, the heat exchanger 140 adopts a two-section structure, the heat exchange area is enlarged, the heat exchange efficiency is improved, and the first heat exchange section 1401 and the second heat exchange section 1402 can be connected in parallel or in series through refrigerant pipelines. When the parallel connection 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 a situation 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, to facilitate the collection of condensed water, the second heat exchange section 1402 may be inclined.
The air injection component 120 is arranged in the air supply opening 117, and is oval (or called as a runway shape) as a whole, the center of the air injection component 120 defines an air exhaust hole 123, and the air exhaust hole 123 is communicated with the surrounding environment at the upstream of the air supply direction. The size and specification of the air injection unit 120 and its internal components may be set according to the air blowing capabilities of the first air blowing unit and the second air blowing unit.
fig. 3 is a schematic view of a jet unit 120 of an indoor unit 100 for a wall-mounted type air conditioner according to an embodiment of the present invention, fig. 4 is a front view of the jet unit 120 shown in fig. 3, and fig. 5 is a schematic sectional view of an air flow pattern taken along a sectional line a-a of fig. 4. The air injection part 120 comprises an annular inner wall 121 and an annular outer wall 122, the annular inner wall 121 and the annular outer wall 122 jointly form the oval shape, and the inner side of the annular inner wall 121 is provided with an air exhaust hole 123. The edge of the annular outer wall 122 that meets the annular inner wall 121 forms an air jet 124, and the air jet 124 is used to eject the air from the supply chamber 125 forward and draw air behind the supply port 117 through the supply port 117.
The rear 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 directed flange 127 at a location opposite the rear edge 126 of the annular inner wall 121 so that the gap between the annular outer wall 122 and the rear edge 126 of the annular inner wall 121 forms the air ejection port 124. The concave rear edge 126 of the annular inner wall 121 toward the inside of the air supply chamber 125 can also have the function of guiding the airflow direction, so that the airflow in the air supply chamber 125 can be smoothly sent out from the air outlet 124.
The annular inner wall 121 extends forwardly from its rear edge 126 to form a continuous outwardly flared coanda surface; and the section of the part of the annular outer wall 122 located at the rear side of the air injection member 120 is spiral, so that the air flow of the air supply chamber 125 is ejected from the air injection port 124 along the annular outer wall 122, and then is sent forward along the coanda surface formed by the annular inner wall 121, and drives the ambient air drawn out of the rear side of the air injection port 117. The extension inclination that annular inner wall 121 extends outward extension in succession forward can be 5 to 15 degrees, and inclination is the bigger, and the expanding speed of air jet 124 spun air current is faster, through a large amount of tests, and annular inner wall 121's extension inclination can set up to between 6 to 10 degrees, more is favorable to mixing with the ambient air in the convulsions hole 123 like this.
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 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 are respectively arranged at both lateral ends of the annular outer wall 122.
In some optional embodiments, the whole of the air injection component 120 may be in an elongated circular shape, the annular inner wall 121 and the annular outer wall 122 respectively have two spaced horizontal sections 128 and two arc-shaped sections 129 connecting the two horizontal sections 128, wherein the annular outer wall 122 of the two arc-shaped sections 129 is respectively provided with a first air inlet 1291 and a second air inlet 1292 of the air injection component 120, and is configured to receive the air flow provided by the first air supply assembly and/or the second air supply assembly after heat exchange.
The above sections of the annular inner wall 121 and the annular outer wall 122 are formed from a plurality of connected components, and in some preferred embodiments, the annular inner wall 121 and the annular outer wall 122 may be formed from a unitary molded piece.
in some alternative embodiments, a wind screen (not shown) may be further 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 for receiving the first heat-exchanged air flow from the first air supply assembly, and the other chamber is communicated with the second air inlet 1292 for receiving the second heat-exchanged air flow from the second air supply assembly. Therefore, the first air supply assembly and the second air supply assembly can be prevented from influencing each other. First air supply subassembly and second air supply subassembly can cooperate the realization air supply each other, 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 first air supply assembly and the second air supply assembly operate at the same wind speed, the first air supply assembly operates independently, the second air supply assembly operates independently, and the first air supply assembly and the second air supply assembly operate alternately, so that the effect similar to left and right air swinging is achieved, and the balanced operation of internal components of the indoor unit 100 is guaranteed.
The gas ports 124 may be continuous annular grooves, and in alternative embodiments, the gas ports 124 may be formed in sections of the inner and outer annular walls 121, 122, or in spaced segments. For example, the air ejection ports 124 may be provided only on the horizontal section 128 of the air ejection part 120, so that the air ejection is more uniform and the ambient air inside the suction holes 123 can be efficiently entrained. In order to improve the jet velocity of the air jet 124, the width of the air jet 124 can be set to 1 to 3mm, through a large number of tests, the width of the air jet 124 can be preferably set to about 2mm, the air jet 124 with the width of the size can ensure the jet velocity of the heat exchange air flow, and the wind resistance loss of the heat exchange air flow can be reduced as much as possible, so that the noise is reduced. In fig. 5, solid arrows indicate the flow direction of the ambient air, and dashed arrows indicate the flow direction of the heat exchange air ejected from the air ejection port 124.
In some preferred embodiments, the air injection component 120 can also be driven by a motor and a transmission mechanism to realize integral up-and-down swing, adjust the air supply angle and realize swing air supply, so that the air outlet range is wider.
A first air supply assembly and a second air supply assembly, which are transversely disposed in the casing 110 at intervals and located behind the heat exchanger 140, wherein the first air supply assembly is configured to generate a first heat exchange airflow entering from the air inlet 116, exchanging heat with the heat exchanger 140, and then supplying the first heat exchange airflow into the air supply cavity 125 through the first air inlet 1291; 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 chamber 125 through the second air inlet 1292.
The first and second air supply modules are symmetrically disposed about the center of the heat exchanger 140, and supply air to the first and second air inlets 1291 and 1292 at both sides of the air injection unit 120, respectively.
The first air supply assembly includes: a first centrifugal fan 131 and a first air guiding component 136. The first centrifugal fan 131 is used as a power source for the first heat-exchanging airflow to flow, and may be configured to allow ambient air to enter from the air inlet 116, exchange heat with the heat exchanger 140, pass through the first centrifugal fan 131, be discharged downstream of the airflow, and finally enter the air supply cavity 125 through the first air inlet 1291, and then be discharged outside the indoor unit 100. The first air guiding part 136 is connected between an air outlet of the first centrifugal fan 131 and a first air inlet 1291 of the air injection part 120, and is used for guiding the air flow discharged by the first centrifugal fan 131 into the air supply cavity 125.
the second air supply assembly includes: a second centrifugal fan 151 and a second air guiding member 156. The second centrifugal fan 151, serving as a power source for the second heat-exchange airflow, may be configured to allow ambient air to enter from the air inlet 116, exchange heat with the heat exchanger 140, pass through the second centrifugal fan 151, be discharged downstream of the airflow, and finally enter the air supply cavity 125 through the second air inlet 1292, and then the air injection part 120 is sent out of the indoor unit 100. The second air guiding part 156 is connected between an air outlet of the second centrifugal fan 151 and a second air inlet 1292 of the air injection part 120, and is used for guiding the air flow discharged from the second centrifugal fan 151 into the air supply chamber 125.
Fig. 6 is a schematic view of internal components of the wall-mounted air conditioner indoor unit 100 according to an embodiment of the present invention. The wall-mounted air conditioner indoor unit 100 further includes a partition 143, and the wall-mounted air conditioner indoor unit 100 includes a partition 143, and the partition 143 is used to isolate air flow before and after heat exchange. The partition 143 includes a longitudinal plate portion 1431 provided 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 receiving chamber for arranging the first heat exchange section 1401 with the front panel 114. The first heat exchange section 1401 is disposed within the first heat exchanger receiving cavity.
The partition 143 further includes a transverse plate portion 1432 attached to the top of the longitudinal plate portion 1431 and spaced from the top of the housing 112, the transverse plate portion 1432 defining an air intake passage from the top air intake 116 to the heat exchanger receiving cavity. A central portion of the cross plate portion 1432 is recessed downward to define a second heat exchanger receiving chamber for arranging the second heat exchange section 1402 with a top wall of the casing 112. The air inlet 116 on the top wall of the housing 112 is disposed above the transverse plate portion 1432, the first heat exchanger accommodating chamber is communicated with the second heat exchanger accommodating chamber, and the air flow entering from the air inlet 116 on the top wall of the housing 112 firstly exchanges heat with the second heat exchange section 1402 in the second heat exchanger accommodating chamber, and then enters the first heat exchanger accommodating chamber to continue exchanging heat with the first heat exchange section 1401.
The air inlet 116 on the side wall of the casing 112 is longitudinally arranged on the edge of the side wall of the casing 112 close to the front panel 114 so as to be communicated with the first heat exchanger accommodating cavity, so that the air inlet 116 on the side wall is only communicated with the first heat exchanger accommodating cavity and can be formed by one or more through holes, and therefore, external air transversely enters the first heat exchanger accommodating cavity from the side wall to exchange heat with the first heat exchange section 1401, on one hand, the area of the air inlet 116 is enlarged, and the smoothness of heat exchange airflow is improved; on the other hand, air supply is carried out from multiple directions, and the heat exchange balance of the heat exchanger 140 can be ensured.
the center of the rearward recessed portion of the longitudinal plate portion 1431 is provided with a first through hole 145 through which the first air collection port 132 of the first centrifugal fan 131 passes and a second through hole 146 through which the second air collection port 152 of the second centrifugal fan 151 passes. The first and second centrifugal fans 131 and 151 suck air in the first heat exchanger accommodating chamber, thereby forming first and second heat exchange air flows, respectively. The first impeller 133 and the first volute 134 of the first centrifugal fan 131 are disposed in the space defined by the longitudinal plate portion 1431 and the housing 112, and the exhaust port of the first volute 134 faces the side wall of the housing 110; the air inlet of the first air guiding component 136 is connected with the air outlet of the first volute 134.
similarly, the second impeller 153 and the second volute 154 of the second centrifugal fan 151 are disposed in the space defined by the longitudinal plate portion 1431 and the housing 112, and the exhaust port of the second volute 154 faces the side wall of the other side of the casing 110; the air inlet of the second air guiding component 156 is connected with the air outlet of the second volute 154.
Fig. 7 is a schematic diagram illustrating the configuration of the first and second air supply units of the wall-mounted air conditioner indoor unit 100 supplying air to the air injection unit 120 according to an embodiment of the present invention. The first air supply assembly includes: first centrifugal fan 131 and first guide part 136, the second air supply subassembly includes: a second centrifugal fan 151 and a second air guiding member 156. In order to ensure the air jet velocity of the air jet part 120, the first air supply assembly and the second air supply assembly of the present embodiment both employ a centrifugal fan as a power source for heat exchange airflow.
The first centrifugal fan 131 accelerates the gas using the first impeller 133 rotating at a high speed according to the principle that kinetic energy is converted into potential energy, and then decelerates and changes the flow direction, so that kinetic energy is converted into potential energy. The first centrifugal fan 131 generally includes a first air collection opening 132, a first impeller 133, and a first volute 134. The first air collecting opening 132 of the first centrifugal fan 131 is used for ensuring 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 opening 132 of the first centrifugal fan 131 is tapered towards the first impeller 133 to form a bell mouth, so that 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 impeller 133 of the first centrifugal fan 131 is driven by the first high-speed motor 135 to rotate along with the shaft, the gas between the first impellers 133 obtains centrifugal force along with the rotation of the first impeller 133, the gas is thrown out of the first impeller 133 and enters the first volute 134, and the pressure of the gas in the first volute 134 is increased and is guided to be discharged. After the gas between the blades is discharged, negative pressure is formed; air in the first heat exchanger accommodating chamber outside the first air collecting opening 132 is continuously sucked in, thereby forming a continuous air flow.
the first impeller 133 and the first volute 134 of the first centrifugal fan 131 are disposed in the space defined by the longitudinal plate portion 1431 and the housing 112, and the exhaust port of the first volute 134 faces the side wall of the housing 110 on the side of the first intake port 1291; the air inlet of the first air guiding component 136 is connected with the air outlet of the first volute 134. The first scroll 134 is formed in a spiral shape, and sucks air thrown from the first impeller 133 and converts dynamic pressure of the air flow into static pressure by a gradually widened sectional area.
The first air guiding member 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 chamber 125. The first wind-guiding component 136 may include a first flow-guiding section 137 and a first wind-supplying section 138.
The first flow guiding section 137 has an air inlet of the first air guiding component 136, and at least a part of the section of the first flow guiding section 137 is spiral-shaped, so as to guide the airflow direction discharged by the first centrifugal fan 131 downward, and the first flow guiding section 137 is gradually reduced from the air inlet of the first air guiding component 136 along the airflow direction, so as to accelerate the speed of the airflow entering the first air collecting cavity 139 of the first air supplying section 138.
The first air supply section 138 is connected to the first flow guiding 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 opened toward the first air inlet 1291 to supply the air flow of the first air collecting chamber 139 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, so that the wind resistance of the airflow in the first air collection cavity 139 is reduced, a vortex is formed in the first air collection cavity 139, and the airflow can smoothly pass from the first air collection cavity 139 to the air supply cavity 125.
The first flow guiding section 137 may be disposed at one side of the first centrifugal fan 131, due to the space limitation of 143, the front-back distance of the first flow guiding section 137 is smaller, and the first air supply section 138 is located below the heat exchanger accommodating cavity (i.e., below the partition 143 and the heat exchanger 140), so that the front-back distance thereof is greater than that of the first flow guiding section 137, and the air outlet of the first air supply section 138 is disposed at the front of the first air collecting cavity 139, which is attached to one side of the air injection component 120. The first air inlet 1291 of the air injection member 120 is provided on the annular outer wall 122 of the arc-shaped section 129 located on one side of the first wind guide member 136 among the two arc-shaped sections 129.
The structure of the second air supply assembly is consistent with that of the first air supply assembly. Specifically, the second centrifugal fan 151 generally includes a second air collection opening 152, a second impeller 153, and a second volute 154. The second air collecting port 152 of the second centrifugal fan 151 functions to ensure that the air flow uniformly fills the inlet interface of the second impeller 153, reducing flow loss. The second air collecting port 152 of the second centrifugal fan 151 is tapered toward the second impeller 153 to form a bell mouth, so that air in the first heat exchanger accommodating chamber 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, the gas between the second impellers 153 obtains centrifugal force along with the rotation of the second impeller 153, the gas is thrown out of the second impeller 153 and enters the second volute 154, and the pressure of the gas in the second volute 154 is increased and guided to be discharged. After the gas between the blades is discharged, negative pressure is formed; air in the first heat exchanger receiving chamber outside the second air collecting opening 152 is continuously sucked in, thereby forming a continuous air flow.
The second impeller 153 and the second volute 154 of the second centrifugal fan 151 are disposed in the space defined by the longitudinal plate portion 1431 and the housing 112, and the exhaust port of the second volute 154 faces the side wall of the housing 110 on the side of the second intake port 1292; the air inlet of the second air guiding component 156 is connected with the air outlet of the second volute 154. The second scroll 154 is formed in a spiral shape, and sucks air thrown from the second impeller 153 and converts the dynamic pressure of the air flow into the static pressure by a gradually widened sectional area.
The second air guiding part 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 chamber 125. The second wind directing part 156 may include a second flow directing section 157 and a second wind supplying section 158.
The second flow-guiding section 157 has an air inlet of the second air guiding component 156, and at least a partial section of the second flow-guiding section 157 is helical, so as to guide the airflow direction discharged by the second centrifugal fan 151 downward, and the second flow-guiding section 157 is tapered from the air inlet of the second air guiding component 156 along the airflow direction, so as to accelerate the speed of the airflow entering the second air collecting cavity 159 of the second air supplying section 158.
the second air supply section 158 is connected to the second flow guiding section 157, and defines a second air collecting chamber 159 therein to receive the air flow discharged from the second centrifugal fan 151, and the second air supply section 158 is opened toward the second air inlet 1291 to supply the air flow of the second air collecting chamber 159 to the air supply chamber 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 air resistance of the airflow in the second air collecting cavity 159 is reduced, a vortex is formed in the second air collecting cavity 159, and the airflow can smoothly pass from the second air collecting 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, due to the space limitation of the partition 143, the front-rear distance of the second flow guiding section 157 is smaller, and the second air supply section 158 is located below the first heat exchanger accommodating cavity (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 an air outlet of the second air supply section 158 is disposed at the front of the second air collecting cavity 159, which is adjacent to one side of the air injection part 120. The second air inlet 1292 of the air injection member 120 is provided on the annular outer wall 122 of the arc-shaped section 129 on the side of the second wind guide member 156 among the two arc-shaped sections 129.
First air supply subassembly and second air supply subassembly cooperate, supply air jointly for the air current in the air supply chamber 125 is more even, and air-out everywhere of air jet 124 is even, can guarantee to drive surrounding air evenly, has further improved the stability and the homogeneity of air supply.
in addition, under some special working conditions, the first air supply assembly and the second air supply assembly can be started alternatively or by different wind powers, 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 the air supply in a low-air mode, one of the first air supply assembly and the second air supply assembly can be selected to start without simultaneously opening the two air supply assemblies; in addition, the first air supply assembly and the second air supply assembly can be started alternately, so that the effect similar to the swinging of air is realized. In addition, in a matching manner, a wind blocking plate may be further disposed in the air supply cavity 125 to separate the air supply cavity 125 into two chambers, one of the two chambers is communicated with the first air inlet 1291 for receiving the first heat exchange airflow from the first air supply assembly, and the other chamber is communicated with the second air inlet 1292 for receiving the second heat exchange airflow from the second air supply assembly.
Because first air supply subassembly and second air supply subassembly supply air to jet-propelled part 120 jointly, its control mode is nimble more convenient, can satisfy the air supply requirement of different operating modes, has improved user's use greatly and has experienced.
In the wall-mounted air conditioner indoor unit 100 of the present embodiment, the air supply opening 117 below the casing 110 is used for arranging the annular air injection component 120, so that the air flow heat-exchanged by the heat exchanger 140 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 the heat-exchanged air flow with severe temperature difference with the ambient environment is mixed, thereby ensuring that the air flow sent out is soft and comfortable to be blown to human body, on one hand, the air supply amount of the indoor unit 100 is increased, the flow of the indoor air is accelerated, and the indoor temperature can be wholly and uniformly reduced, and the air outlet of the air conditioner indoor unit 100 of the present invention is in a long-round wall-mounted shape (also called as a runway shape) and is arranged below the casing 110, the whole structure is similar to that of the existing conventional indoor unit in a, the interior components are compact in structure, and the space in the housing 110 is fully utilized, so that the wall-mounted air conditioner indoor unit can be thinner.
when the first air supply assembly is started to supply air, the flow direction of the heat exchange air flow of the wall-mounted air conditioner indoor unit 100 of the embodiment is as follows: 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 cavity from the air inlet 116 (after the air entering from the top air inlet exchanges heat with the first heat exchange section 1401 in the second heat exchanger accommodating cavity first, the air enters the first heat exchanger accommodating cavity), and then the air and the heat exchanger 140 perform sufficient heat exchange. 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 guiding component 136 through the first volute 134, and enters the first air collecting cavity 139 of the first air supply section 138 through the guidance of the first flow guiding section 137 of the first air guiding component 136. The gas flow travels in a vortex manner in the first gas collecting cavity 139 and finally enters the annular air supply cavity 125 from the first air inlet 1291 through the air outlet of the first air supply section 138, so as to form a first heat exchange gas flow.
Another part of the air flow after heat exchange enters the second centrifugal fan 151, and after acceleration of the second impeller 153, enters the second air guiding part 156 through the second volute 154, and enters the second air collecting cavity 159 of the second air supplying section 158 through guidance of the second flow guiding section 157 of the second air guiding part 156. The air flow travels in a vortex in the second air collecting chamber 159 and finally enters the annular air supply chamber 125 through the air outlet of the second air supply section 158 from the second air inlet 1292, thereby forming a second heat exchange air flow.
After entering the air supply cavity 125, the first heat exchange airflow and the second heat exchange airflow are ejected forward from the air ejection opening 124 at a high speed under the guidance of the rear side edge 126 of the annular inner wall 121, and drive the air in the air circulation area 118 at the rear of the air supply opening 117 to be sucked through the air extraction hole 123 of the air ejection part 120, and after being mixed in front of the indoor unit 100, the air is sent into the room, the air outlet volume is greatly increased, and meanwhile, the airflow after heat exchange is mixed with ambient air to become cool and not-cool soft airflow, and the flow of the indoor air is accelerated.
in the case where the first air supply assembly and the second air supply assembly are independently activated, the flow directions of the respective air flows are similar to those described above, and the air supply chamber 125 supplies the air flow from the first air supply assembly or the second air supply assembly.
thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A wall-mounted air conditioner indoor unit comprising:
The air conditioner comprises a shell and a fan, wherein 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, and an oblong air supply outlet is formed in the lower part of the front panel;
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 part is arranged in the air supply port, the air injection part integrally forms an oblong shape matched with the air supply port, the air injection part comprises an annular inner wall and an annular outer wall, an air suction hole is limited at the inner side of the annular inner wall, an air supply cavity is limited by the annular outer wall and the annular inner wall together, an air injection port is formed at the edge of the annular outer wall connected with the annular inner wall, a first air inlet and a second air inlet for receiving heat exchange airflow are respectively arranged at the two transverse ends of the annular outer wall, the air injection port is used for injecting the air in the air supply cavity forwards and driving the ambient air in the air suction hole to be sent out forwards, and the air suction hole is respectively communicated with the ambient environment at the upstream of the air supply direction;
The first air supply assembly is arranged below the rear part of the heat exchanger at a transverse interval, and the first air supply assembly is used for generating a first heat exchange airflow which enters from the air inlet and is supplied to 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 a second heat exchange air flow which enters from the air inlet, exchanges heat with the heat exchanger and then is supplied to the air supply cavity through the second air inlet;
The air supply cavity is divided into a first cavity and a second cavity by a wind shield, the first cavity is communicated with the first air inlet and used for receiving the first heat exchange air flow coming from the first air supply assembly, and the second cavity is communicated with the second air inlet and used for receiving the second heat exchange air flow coming from the second air supply assembly.
2. The wall mounted air conditioner indoor unit according to claim 1, wherein
The rear side edge of the annular inner wall is recessed towards the inner part of the air supply cavity, and an outward flange is arranged at the position, opposite to the rear side edge of the annular inner wall, of the annular outer wall, so that the air injection port is formed in a gap between the annular outer wall and the rear side edge of the annular inner wall.
3. The wall mounted air conditioner indoor unit according to claim 2, wherein
Said annular inner wall extending forwardly from a rear side edge thereof to form a continuous outwardly flared coanda surface; and is
the section of the part of the annular outer wall, which is positioned at the rear side of the air injection part, is spiral, so that the airflow of the air supply cavity is ejected from the air injection port along the annular outer wall, is sent out forwards along the coanda surface formed by the annular inner wall, and drives the ambient air behind the air injection port to be pumped out.
4. The wall mounted air conditioner indoor unit according to claim 1, wherein
The air injection part comprises two horizontal sections at intervals and two arc sections connecting the two horizontal sections, wherein the annular outer walls of the two arc sections are respectively provided with the first air inlet and the second air inlet.
5. The wall mounted air conditioner indoor unit according to 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 part is connected between an air outlet of the first centrifugal fan and the first air inlet so as to guide the airflow discharged by the first centrifugal fan to enter 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 part is connected between an air outlet of the second centrifugal fan and the second air inlet so as to guide the airflow discharged by the second centrifugal fan to enter the air supply cavity.
6. The wall mounted air conditioner indoor unit according to claim 5, further comprising:
The baffle plate is used for separating air before and after heat exchange, the baffle plate comprises a longitudinal plate part which is arranged in parallel with the front panel, the middle part of the longitudinal plate part is recessed backwards so as to define a first heat exchanger accommodating cavity used for arranging the first heat exchange section between the longitudinal plate part and the front panel, an air inlet of the side wall of the housing is longitudinally arranged at the edge of the side wall of the housing, which is close to the front panel, so as to be communicated with the first heat exchanger accommodating cavity, and
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, the middle part of horizontal plate portion is recessed downwards, with inject between the housing roof and be used for arranging the second heat exchanger of second heat transfer section holds the chamber, the air intake of housing roof set up in the top of horizontal plate portion, the second heat exchanger hold the chamber with first heat exchanger holds the chamber intercommunication.
7. The wall mounted air conditioner indoor unit according to 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 arranged at intervals in the transverse direction,
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 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 a 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 guiding part, and the air collecting port of the second centrifugal fan penetrates out of the second through hole to suck air from the first heat exchanger accommodating cavity to form the second heat exchange airflow.
8. The wall mounted air conditioner indoor unit according to claim 7, wherein
The first wind-guiding component includes: the first flow guide section is provided with an air inlet of the first air guide part, at least part of the section body of the first flow guide 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 collecting cavity is defined in the first air supply section to receive airflow discharged by the first centrifugal fan, and a first exhaust port connected with the first air inlet is formed in the first air supply section to supply the airflow of the first air collecting cavity to the air supply cavity; and is
The second wind guide member includes: the second flow guide section is provided with an air inlet of the second air guide part, at least part of the section of the second flow guide section is in a spiral shape, and the air flow direction discharged by the second centrifugal fan is guided downwards; and the second air supply section is connected with the second drainage section, a second air collecting cavity is defined in the second air supply section to receive the 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 to supply the air flow of the second air collecting cavity to the air supply cavity.
9. The wall mounted air conditioner indoor unit of claim 8, wherein
The first flow guiding section gradually shrinks along the airflow direction from the air inlet of the first air guiding component, and the first air supply section forms a volute shape along the air outlet direction of the first flow guiding section, so that the wind resistance of the first heat exchange airflow in the first air collecting cavity is reduced;
The second flow guiding section gradually shrinks along the airflow direction from the air inlet of the second air guiding component, and the second air supply section forms a volute shape along the air outlet direction of the second flow guiding section, so that the wind resistance of the second heat exchange airflow in the second air collecting cavity is reduced.
10. The wall mounted air conditioner indoor unit according to claim 1, wherein
The casing and the lower part of the front panel form the air supply opening which penetrates through the front and the back, and the position of the air supply opening formed on the back side of the casing is recessed forwards, so that an air circulation area is formed behind the air supply opening.
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| CN201711046202.XA CN108036403B (en) | 2017-10-31 | 2017-10-31 | Wall-mounted air conditioner indoor unit |
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| CN201711046202.XA CN108036403B (en) | 2017-10-31 | 2017-10-31 | Wall-mounted air conditioner indoor unit |
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| CN108036403A CN108036403A (en) | 2018-05-15 |
| CN108036403B true CN108036403B (en) | 2019-12-06 |
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| CN107906605B (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 |
| US20220088519A1 (en) * | 2019-01-28 | 2022-03-24 | Blueair Ab | Air purifier |
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| CN103206415A (en) * | 2011-07-04 | 2013-07-17 | 李耀强 | Airflow injection device |
| KR20150062348A (en) * | 2013-11-29 | 2015-06-08 | 엘지전자 주식회사 | Dehumidifier |
| 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 |
| CN107655075A (en) * | 2017-09-28 | 2018-02-02 | 青岛海尔空调器有限总公司 | Wall-hanging indoor unit of air conditioner |
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2017
- 2017-10-31 CN CN201711046202.XA patent/CN108036403B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206415A (en) * | 2011-07-04 | 2013-07-17 | 李耀强 | Airflow injection device |
| KR20150062348A (en) * | 2013-11-29 | 2015-06-08 | 엘지전자 주식회사 | Dehumidifier |
| 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 |
| CN107655075A (en) * | 2017-09-28 | 2018-02-02 | 青岛海尔空调器有限总公司 | Wall-hanging indoor unit of air conditioner |
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