CN108050588B

CN108050588B - Indoor unit of wall-mounted air conditioner

Info

Publication number: CN108050588B
Application number: CN201711071354.5A
Authority: CN
Inventors: 李英舒; 戴现伟; 王永涛
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Haier Smart Home Co Ltd
Priority date: 2017-11-03
Filing date: 2017-11-03
Publication date: 2023-04-25
Anticipated expiration: 2037-11-03
Also published as: CN108050588A

Abstract

The invention provides a wall-mounted air conditioner indoor unit, which comprises: the shell comprises a housing and a front panel arranged in front of the housing, wherein the front panel is provided with a first air supply opening and a second air supply opening which are in a long round shape, and the shell is arranged obliquely downwards relative to the supporting wall body so that the air supply opening faces obliquely downwards; the heat exchanger is arranged in the shell, and the position of the heat exchanger is communicated with the air inlet; the first air injection part and the second air injection part are respectively arranged in the first air supply opening, the first air injection opening and the second air injection opening for supplying air flow after heat exchange are respectively formed on the inner peripheral walls of the first air injection part and the second air injection part, and the heat exchange air flow drives air in central air suction holes of the first air injection part and the second air injection part to be sent obliquely downwards; the first air supply assembly and the second air supply assembly are arranged in the shell at intervals and are respectively used for providing heat exchange air flow for the first air injection part and the second air injection part. The scheme increases the air supply quantity and leads the indoor temperature to be wholly and uniformly reduced.

Description

Indoor unit of wall-mounted air conditioner

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 installation of the hanging type indoor unit is troublesome, 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.

Another further object of the present invention is to make the air supply mode of the indoor unit of the wall-mounted air conditioner flexible, and to meet the adjustment requirements of different requirements.

In particular, the present invention provides a wall-mounted air conditioner indoor unit, comprising:

the shell comprises a housing and a front panel arranged in front of the housing, wherein the front panel is provided with a first air supply opening and a second air supply opening which are arranged at intervals and respectively grow into a round shape, and the shell is arranged obliquely downwards relative to a supporting wall body for fixing the indoor unit of the wall-mounted air conditioner so that the air supply opening faces obliquely downwards;

the heat exchanger is arranged in the shell and is close to the front panel;

the first air injection part and the second air injection part are respectively arranged in the first air supply opening, the first air injection part and the second air injection part are respectively formed on the inner peripheral walls of the first air injection part and the second air injection part, the first air injection part is used for injecting air flow in the first air injection part and driving the ambient air in the first air suction hole defined by the inner peripheral wall of the first air injection part to be sent out obliquely downwards, the second air injection part is used for injecting air flow in the second air injection part and driving the ambient air in the second air suction hole defined by the inner peripheral wall of the second air injection part to be sent out obliquely downwards, and the first air suction hole and the second air suction hole are respectively 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 in the shell at intervals, wherein the first air supply assembly is used for supplying air which exchanges heat with the heat exchanger into the first air injection part and spraying out of the first air injection port to form first heat exchange air flow, and the second air supply assembly is used for supplying second heat exchange air flow which exchanges heat with the heat exchanger into the second air injection part and spraying out of the second air injection port to form second heat exchange air flow.

Optionally, the wall-mounted air conditioner indoor unit further includes: one end of the fixing frame is fixedly connected with the back of the housing, and the other end of the fixing frame is used for being fixed on the supporting wall; and at least a part of the lower edge of the back of the housing forms a chamfer so as to be attached to the supporting wall body by the chamfer after the fixing frame is fixed with the supporting wall body, thereby supporting the indoor unit.

Optionally, the housing is arranged with an inclination angle in the range of 5 to 30 degrees relative to the wall.

Optionally, the first air-jetting portion and the second air-jetting portion are respectively composed of an annular inner wall and an annular outer wall, and

the annular outer wall and the annular inner wall of the first air injection part jointly define a first air supply cavity, the edge of the annular outer wall and the annular inner wall of the first air injection part, which are connected, form a first air injection port, and the end part of one side of the first air injection part is provided with a first air inlet communicated with the first air supply assembly, so that a first heat exchange air flow is introduced into the first air supply cavity;

The annular outer wall and the annular inner wall of the second air injection part jointly define a second air supply cavity, the edge of the annular outer wall and the annular inner wall of the second air injection part are connected to form a second air injection port, and the end part on one side of the second air injection part is provided with a second air inlet communicated with the second air supply assembly, so that second heat exchange air flow is introduced into the second air supply cavity, and the first air inlet and the second air inlet are respectively arranged at two ends close to different side walls of the housing and face opposite directions.

Optionally, the rear side edge of the annular inner wall of the first air injection part is recessed toward the inside of the first air supply cavity, and the position of the annular outer wall of the first air injection part opposite to the rear side edge of the annular inner wall is provided with an outward flanging, so that a gap between the annular outer wall of the first air injection part and the rear side edge of the annular inner wall forms a first air injection port;

the rear side edge of the annular inner wall of the second air injection part is recessed towards the inside of the second air supply cavity, and the position, opposite to the rear side edge of the annular inner wall, of the annular outer wall of the second air injection part is provided with an outward flanging, so that a gap between the annular outer wall of the second air injection part and the rear side edge of the annular inner wall forms a second air injection port.

Optionally, the annular inner wall of the first jet section extends forwardly from its rear side edge to form a continuously outwardly expanding first coanda surface; the section of the part of the annular outer wall of the first air injection part, which is positioned at the rear side of the first air injection part, is spiral, so that the air flow of the first air supply cavity is ejected from the first air jet port along the annular outer wall of the first air injection part, is sent out along the first coanda surface, and drives the ambient air in the first air suction hole to be pumped out; and is also provided with

The annular inner wall of the second jet section extending forwardly from its rear edge to form a continuously outwardly diverging second coanda surface; and the section of the part of the annular outer wall of the second air injection part, which is positioned at the rear side of the second air injection part, is spiral, so that the air flow of the second air supply cavity is ejected out of the second air injection port along the annular outer wall of the second air injection part, is sent out along the second coanda surface, and drives the ambient air in the second air pumping hole to be pumped out.

Optionally, air inlets are respectively formed in two sides of the housing, ambient air is sucked from the air inlets by the first air supply assembly and the second air supply assembly respectively, the first air supply opening is transversely formed in the lower portion of the front panel, the second air supply opening is transversely formed in the upper portion of the front panel, the first air supply opening and the second air supply opening are symmetrically arranged relative to the transverse center line of the front panel, and the bottom wall of the housing is provided with an air guiding opening at the rear portion of the first air injection portion so that the first air pumping hole is communicated with the ambient environment.

Optionally, the wall-mounted air conditioner indoor unit further includes: the center of the partition board is recessed backwards to define a heat exchanger accommodating cavity for arranging the heat exchanger with the front panel, and the two sides of the partition board form backwards turned edges, and the air inlet is formed at a position opposite to the turned edges, so that the turned edges of the partition board and the side wall of the housing define an air inlet channel from the air inlet to the heat exchanger accommodating cavity; the middle part of the partition plate is provided with a first through hole and a second through hole which are transversely arranged at intervals;

The first air supply assembly includes: the first centrifugal fan is arranged between the partition plate and the housing and is used as a power source of first heat exchange airflow, the air collecting port of the first centrifugal fan penetrates out of the first through hole to suck air from the heat exchanger accommodating cavity, and the air outlet of the volute of the first centrifugal fan faces the side wall of the housing on one side of the first air inlet; the first air guide component is connected between the air outlet and the first air inlet of the first centrifugal fan, and the air inlet of the first air guide component is connected with the air outlet of the volute of the first centrifugal fan so as to guide the air flow exhausted by the first centrifugal fan into the first air supply cavity.

The second air supply assembly includes: the second centrifugal fan is arranged between the partition plate and the housing and is used as a power source of second heat exchange airflow, the air collecting port of the second centrifugal fan penetrates out of the second through hole to suck air from the heat exchanger accommodating cavity, and the air outlet of the volute of the second centrifugal fan faces the side wall of the housing on one side of the second air inlet; the second air guide component is connected between the air outlet and the second air inlet of the second centrifugal fan, and the air inlet of the second air guide component is connected with the air outlet of the volute of the second centrifugal fan so as to guide the air flow exhausted by the second centrifugal fan into the second air supply cavity.

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 first air supply cavity; and is also provided with

The second air guiding member includes: the second diversion section is provided with an air inlet of the second air guide component, at least part of the second diversion section is in a spiral shape, and the air flow direction discharged by the second centrifugal fan is guided upwards; 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 second 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; 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. The front panel of the shell is provided with two oblong air supply openings, which are respectively used for arranging the annular first air injection part and the annular second air injection part, and the air flows which pass through the heat exchangers are respectively supplied by the first air supply assembly and the second air supply assembly, so that the air flows after heat exchange are sprayed out from the air injection openings of the first air injection part and the second air injection part, the ambient air around the air supply openings is sucked and mixed with the heat exchange air with severe ambient temperature difference, the sent air flow is ensured to be soft, the feeling of blowing to a human body is more comfortable, on one hand, the air supply amount is increased, the flow of the indoor air is accelerated, the indoor temperature is integrally and uniformly reduced, the integral structure of the wall-mounted air conditioner indoor unit is similar to that of the traditional wall-mounted indoor unit, the wall-mounted air conditioner indoor unit is easy to accept by users, the traditional wall-mounted indoor unit is easy to replace, and the installation position is flexible.

Furthermore, the air inlets are respectively formed in the two sides of the housing, external air enters the heat exchanger accommodating cavity where the heat exchanger is located from the two sides, so that the smoothness of heat exchange air flow is ensured, the ash falling problem of the top opening is avoided, the structure of the indoor unit is more compact, the air before and after heat exchange is separated by the partition plate, and the whole shell is attractive. The air inlet direction is two sides, and the air supply direction is the forward direction, so that indoor air flow forms circulation, and the heat exchange efficiency is higher.

Furthermore, the shell of the wall-mounted air conditioner indoor unit is obliquely arranged relative to the supporting wall body, so that the air supply opening faces obliquely downwards, and the air outlet is large due to the adoption of the jet air outlet mode, so that the problems that when the air supply opening faces to the right front, the air supply air flow is far in the same height and the convection degree in the height direction is insufficient are solved.

Further, the wall-mounted indoor unit provided by the invention has the advantages that the two air supply assemblies respectively provide the air flow after heat exchange to the two air injection parts and are finally sprayed out from the air injection ports, the two air supply assemblies are mutually matched and supply air together, and the two air supply assemblies can be respectively and independently controlled according to 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 of the invention uses the partition board to separate the air before and after heat exchange, has compact internal component structure, fully utilizes the space in the shell and can make the wall-mounted air conditioner indoor unit thinner.

Furthermore, the indoor unit of the wall-mounted air conditioner improves the positions and the structures of the heat exchanger, the centrifugal fan, the air guide component and the like, so that the occupied space is reduced, and the air supply wind resistance is reduced.

The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

fig. 1 is a schematic exterior view of an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention;

fig. 2 is an installation schematic diagram of an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention;

Fig. 3 is a schematic exploded view of an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention;

fig. 4 is a schematic view of a first air injection part in an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention;

FIG. 5 is a front view of the first jet section shown in FIG. 4;

FIG. 6 isbase:Sub>A schematic cross-sectional airflow diagram taken along section line A-A in FIG. 5;

fig. 7 is a schematic view of internal components of an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention; and

fig. 8 is a schematic view illustrating a structure in which a first air blowing unit and a second air blowing unit blow air to a first air blowing unit and a second air blowing unit in an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention.

Detailed Description

In order to facilitate description, the directions of "up", "down", "front", "back", "top", "bottom", etc. mentioned in the description are defined according to the spatial positional relationship of the wall-mounted air conditioner indoor unit 100 in the normal working state, for example, the side of the wall-mounted air conditioner indoor unit 100 facing the user is the front, and the side that is attached to the mounting position is the rear.

Fig. 1 is a schematic exterior view of a wall-mounted air conditioner indoor unit 100 according to one embodiment of the present invention, fig. 2 is a schematic installation view of the wall-mounted air conditioner indoor unit 100 according to one embodiment of the present invention, and fig. 3 is a schematic exploded view of the wall-mounted air conditioner indoor unit 100 according to one embodiment of the present invention. The wall-mounted air conditioner indoor unit 100 may generally include: the air conditioning system comprises a housing 110, a first air injection part 128, a second air injection part 129, a heat exchanger 140, a first air supply assembly and a second air supply assembly. Wherein the housing 110 may include: a housing 112, and a front panel 114 disposed in front of the housing 112. The housing 112 is formed of a top wall, side walls, and a back, which together define a space for accommodating the internal components, and a front panel 114 is disposed in front of the housing 112, thereby closing the internal space of the housing 112.

The front panel 114 is provided with a first air supply opening 117 and a second air supply opening 119 which are arranged at intervals and respectively grow into a circular shape, for example, the first air supply opening 117 can be transversely arranged at the lower part of the front panel 114, and the second air supply opening 119 is transversely arranged at the upper part of the front panel 114; the first air supply port 117 and the second air supply port 119 may be symmetrically disposed with respect to a lateral center line of the front panel 114.

An installation mode of the wall-mounted air conditioner indoor unit is as follows: a fixing frame 160 for mounting the housing 110 is provided. One end of the fixing frame 160 is fixedly connected with the back of the housing 112, the other end is used for being fixed on the supporting wall 200, and the lower edge of the back of the housing 112 is also abutted against the supporting wall 200, so that a supporting structure of the housing 110 is formed. The fixing frame 160 may be an integral fixing plate or one or more hanging rods. One end of the fixing frame 160 fixedly supporting the wall 200 can be reliably fixedly connected by bolts and screws.

At least a portion of the lower edge of the back of the casing 112 is chamfered to fit the support wall using the chamfer 118 after the fixing frame 160 is fixed to the support wall 200, thereby supporting the indoor unit 100. For example, the lower edge of the back of the housing 112 is formed on both sides with a chamfer 118. In other embodiments, the lower edge of the back of the housing 112 may also be integrally formed with the chamfer 118.

The housing 110 is disposed at an inclination angle range of 5 to 30 degrees with respect to the wall 200. The inclination angle is determined by measuring and calculating according to the hanging height of the indoor unit 100 and the indoor environment, thereby better meeting the requirement of air flow circulation.

The air inlets 116 may be disposed on side walls of two sides of the casing 112, and external ambient air may enter the indoor unit 100 from two sides, so that the air may smoothly enter the heat exchanger accommodating cavity where the heat exchanger 140 is located to exchange heat, thereby ensuring smooth heat exchange airflow, and the air inlets 116 may be formed by gratings, meshes, etc. 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, the air inlet is generally arranged at the top, dust easily falls into the indoor unit in the idle state, air is taken in from two sides, the area of the air inlet area is large, and the problem of dust falling is avoided.

The first air blowing port 117 and the second air blowing port 119 communicate with the surrounding environment upstream in the air blowing direction. The first air supply opening 117 may be transversely opened at the lower portion of the front panel 114, the second air supply opening 119 is transversely opened at the upper portion of the front panel 114, and the first air supply opening and the second air supply opening are symmetrically arranged relative to the transverse center line of the front panel, and an air guiding opening 1171 is opened at the rear portion of the bottom wall of the housing (the rear portion of the first air injecting portion 128 provided in the first air supply opening 117) so that the first air extracting hole 1282 of the first air injecting portion 128 is communicated with the surrounding environment. The above structure can ensure that the air circulation area is arranged behind the first air supply opening 117 under the condition that the housing 110 is obliquely installed, so that the inside of the first air supply opening 117 is communicated with the air circulation area, the heat exchange gas sprayed by the first air spraying part 128 can suck the ambient air from the air circulation area for mixing, the temperature difference between the mixed air flow and the surrounding environment is small, the air supply quantity is softer, and the flow of indoor air is accelerated.

The second air supply port 119 may be formed in an upper portion of the housing 110 (the corresponding positions of the cover 112 and the front panel 114 are each provided with an oblong through hole so as to form the second air supply port 119 extending therethrough, and a position (a rear side of the upper portion) of the cover 112 at which the second air supply port 119 is formed is recessed forward so that an air circulation area is also provided behind the second air supply port 119, thereby allowing the interior of the second air supply port 119 to communicate with the air circulation area, and the heat exchange gas sprayed from the second air spraying portion 129 may suck ambient air from the air circulation area to mix.

Alternatively, the second air supply port 119 may be disposed at a position in front of the housing 110 (only the front panel 114 is perforated), and a hollowed-out area communicating with the surrounding environment is formed at the rear of the housing 110, that is, at the rear side of the top wall of the casing 112 in the air supply direction, so that the heat exchange air can be sucked through the hollowed-out area to pass through the first air suction hole 1282 and the second air suction hole 1292 for mixing.

Outside air enters the shell 110 from the air inlets 116 at two sides and is sent out from the first air supply outlet 117 and the second air supply outlet 119, so that indoor air flow forms circulation, and the heat exchange efficiency is higher.

The heat exchanger 140 is 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 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 may be of the plate type, disposed against the front panel 114 of the housing 110.

The first air injection part 128 is disposed in the first air supply opening 117, and may be disposed horizontally in a normal installation state. The second air injection part 129 is disposed in the second air supply port 119, and may be disposed horizontally in a normal installation state. The first air injection part 128 has a first air injection hole 1282 in the center, and the second air injection part 129 has a second air injection hole 1292 in the center. The first air suction hole 1282 and the second air suction hole 1292 communicate with the surrounding environment upstream in the air blowing direction, respectively. The first air jetting portion 128 and the second air jetting portion 129 may be disposed at lower and upper portions of the front panel 114, respectively. The first suction opening 1282 communicates with the surrounding environment through the air introduction port 1171.

Since the second air injecting portion 129 is substantially identical to the first air injecting portion 128 (only the difference is that the air inlets are opposite in direction), the structure of the first air injecting portion 128 will be described below with reference to the accompanying drawings, and the structure of the second air injecting portion 129 can be correspondingly obtained. The size and specification of the first air injection part 128 and its internal components may be set according to the air supply capability of the first air supply assembly. Fig. 4 isbase:Sub>A front view of the first air injection part 128 of the wall-mounted air conditioner indoor unit 100 according to one embodiment of the present invention, fig. 5 isbase:Sub>A front view of the first air injection part 128 shown in fig. 4, and fig. 6 isbase:Sub>A schematic cross-sectional airflow direction view taken alongbase:Sub>A section linebase:Sub>A-base:Sub>A in fig. 5.

The inner peripheral walls of the first air injection part 128 and the second air injection part 129 are respectively formed with a first air injection port 124 and a second air injection port (not labeled in the figure), the first air injection port 124 is used for injecting air flow in the first air injection part 128 and driving ambient air in a first air suction hole 1282 defined by the inner peripheral wall of the first air injection part 128 to be sent out obliquely downwards, and the second air injection port is used for injecting air flow in the second air injection part 129 and driving ambient air in a second air suction hole 1292 defined by the inner peripheral wall of the second air injection part 129 to be sent out obliquely downwards.

The first air injection part 128 and the second air injection part 129 may be respectively formed of respective annular inner walls and annular outer walls, and the annular outer walls of the first air injection part 128 and the annular inner walls together define a first air supply cavity 125, edges of the annular outer walls of the first air injection part 128, which are connected with the annular inner walls, form a first air injection port 124, and a first air inlet 1281, which is communicated with the first air supply assembly, is opened at an end of one side of the first air injection part 128, so that the first heat exchange air flow is introduced into the first air supply cavity 125.

The second air injection part 129 is identical to the first air injection part 128 in structure and symmetrically arranged, so that the annular outer wall and the annular inner wall of the second air injection part 129 jointly define a second air supply cavity (not marked in the figure), the edge of the annular outer wall and the annular inner wall of the second air injection part 129 connected with each other forms a second air injection port (not marked in the figure), and a second air inlet communicated with the second air supply assembly is formed at one end part of one side of the second air injection part 129, so that second heat exchange air flow is introduced into the second air supply cavity. The first air inlet 1281 and the second air inlet are respectively disposed at two ends close to different sidewalls of the housing 110 and are opposite in orientation, for example, the first air inlet 1281 is disposed at the left side of the first air injection portion 128 and faces the left side of the casing 112, and the second air inlet is disposed at the right side of the second air injection portion 129 and faces the right side of the casing 112.

In the first air injection part 128, the annular inner wall 121 and the annular outer wall 122 together form the above-described oblong shape, and the inner side of the annular inner wall 121 is the first air suction hole 1282. The edge of the annular outer wall 122, which is connected to the annular inner wall 121, forms a first air jet 124, and the first air jet 124 is used for jetting out the air flow of the first air supply cavity 125, and making the air at the rear part of the first air supply opening 117 suck through the first air supply opening 117.

The rear side edge 126 of the annular inner wall 121 is recessed inwardly of the first 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 first air jet 124. The rear edge 126 of the annular inner wall 121 recessed toward the inside of the first air supply chamber 125 may also have an air flow direction guiding effect, so that the air flow in the first air supply chamber 125 is smoothly sent out from the first air jet 124.

The annular inner wall 121 extends forwardly from its rear side edge 126 to form a continuous outwardly expanding first coanda surface; and the section of the part of the annular outer wall 122 located at the rear side of the first air injection part 128 is spiral, so that after the air flow of the first air supply cavity 125 is injected from the first air injection port 124 along the annular outer wall 122, the air flow is sent out along the first coanda surface formed by the annular inner wall 121, and the air flow drives the ambient air behind the first air supply port 117 to be pumped out. The expansion inclination angle of the annular inner wall 121 extending forward and continuously expanding outwards may be 5 to 15 degrees, 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 first air suction hole 1282 is more facilitated.

The annular inner wall 121 and the annular outer wall 122 together define an annular first air supply cavity 125 inside the first air injection portion 128, and a first air inlet 1281 for providing air flow after heat exchange by the heat exchanger 140 to the first air supply cavity 125 is provided at one lateral end of the annular outer wall 122.

In some alternative embodiments, the first air injecting portion 128 may be formed into an overall shape of a circle, the annular inner wall 121 and the annular outer wall 122 respectively have two spaced horizontal sections and two arc sections connected to the two horizontal sections, wherein the annular outer wall 122 of one of the two arc sections is provided with a first air inlet 1281 of the first air injecting portion 128 for receiving the air flow provided by the first air supply assembly after heat exchange.

The above-described sections of the annular inner wall 121 and the annular outer wall 122 may be formed by a splice 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 from a unitary molded piece.

The first gas jets 124 may be a continuous annular groove, and in some alternative embodiments, the first gas jets 124 may be formed on a portion of the sections of the annular inner wall 121 and the annular outer wall 122, or in spaced apart segments. For example, the first air jets 124 may be provided only on the horizontal section so that the air jets are more uniform and may effectively entrain ambient air within the first air extraction holes 1282. In order to increase the jet velocity of the first air jet 124, the width of the first air jet 124 may be set to 1 to 3mm, and through a great number of tests, the width of the first air jet 124 may be preferably set to about 2mm, and the first air jet 124 with the size width not only ensures the jet velocity of the heat exchange air flow, but also can reduce the windage loss of the heat exchange air flow as much as possible and reduce noise. In fig. 6, the solid arrows indicate the air flow direction of the ambient air, and the broken arrows indicate the air flow direction of the heat exchange air flow ejected from the first air ejection port 124.

The second air injecting part 129 has the same structure as the first air injecting part 128, a rear side edge of an annular inner wall of the second air injecting part 129 is recessed toward the inside of the second air supply chamber, and a position of an annular outer wall of the second air injecting part 129 opposite to the rear side edge of the annular inner wall has an outward burring so that a gap between the annular outer wall of the second air injecting part 129 and the rear side edge of the annular inner wall forms a second air injecting port. The annular inner wall of the second jet portion 129 extends forwardly from its rear side edge to form a continuous outwardly expanding second coanda surface; and the section of the part of the annular outer wall of the second air injection part 129 at the rear side is spiral, so that the air flow of the second air supply cavity is sent out along the second coanda surface after being sprayed out from the second air injection port along the annular outer wall of the second air injection part 129, and the air flow drives the ambient air in the second air suction hole 1292 to be pumped out. One end of the annular outer wall of the second air injection part 129 is provided with a second air inlet for providing the air flow after heat exchange by the heat exchanger 140 to the second air supply chamber.

Additional structural details of the second air jet portion 129 may be derived from the description of the first air jet portion 128, and are not repeated herein. In some preferred embodiments, the first air injecting part 128 and the second air injecting part 129 can be driven by a motor and a transmission mechanism respectively, so that the overall up-and-down swing is realized, the air supply angle is adjusted, and the swing air supply is realized, so that the air outlet range is wider.

The first air supply assembly and the second air supply assembly are disposed in the housing 110 at intervals, wherein the first air supply assembly is configured to generate a first heat exchange air flow entering from the air inlet 116 and being supplied to the first air supply cavity 125 through the first air inlet 1281 after exchanging heat with the heat exchanger 140, that is, the first air supply assembly is configured to supply air after exchanging heat with the heat exchanger 140 into the first air injection part 128 and to inject the air from the first air injection port 124; 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 second air supply chamber through the second air inlet, that is, the second air supply assembly is configured to supply air after exchanging heat with the heat exchanger 140 into the second air injection portion 129 and to be injected from the second air injection port.

The first air supply assembly and the second air supply assembly are symmetrically arranged with the center of the heat exchanger 140, and the first air supply assembly and the second air supply assembly supply air to the first air inlet 1281 and the second air inlet 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, passes through the first centrifugal fan 131, is discharged downstream, and finally is sent out of the indoor unit 100 through the first air injection part 128. The first air guiding component 136 is connected between the air outlet of the first centrifugal fan 131 and the first air inlet 1281, and is used for guiding the air flow discharged by the first centrifugal fan 131 into the first air supply cavity 125.

The second air supply assembly includes: the second centrifugal fan 151 and the second air guide 156. The second centrifugal fan 151, which is a power source for the second heat exchange airflow, may be configured such that ambient air enters from the air inlet 116 and exchanges heat with the heat exchanger 140, passes through the second centrifugal fan 151, is discharged downstream, and finally is sent out of the indoor unit 100 through the second air injection unit 129. The second air guiding member 156 is connected between the air outlet and the second air inlet of the second centrifugal fan 151, and is used for guiding the air flow discharged from the second centrifugal fan 151 into the second air supplying cavity.

Fig. 7 is a schematic diagram of internal components of a wall-mounted air conditioner indoor unit 100 according to one embodiment of the present invention. The wall-mounted air conditioner indoor unit 100 further includes a partition 143 inside, and the partition 143 is used for isolating the air flow before and after heat exchange. The center of the partition 143 is recessed rearward to define a heat exchanger accommodating chamber for disposing the heat exchanger 140 with the front panel 114, and both sides of the partition 143 are formed with rearward flanges 1433, and the air intake 116 is opened at a position opposite to the flanges 1433, so that the flanges 1433 of the partition 143 and the side wall of the housing 112 define an air intake passage from the air intake 116 to the heat exchanger accommodating chamber. The heat exchanger 140 is disposed in the heat exchanger accommodating chamber.

After the external air enters from the air inlets 116 at the two sides, the external air enters the accommodating cavity of the heat exchanger along the space defined by the flange 1433, and exchanges heat with the heat exchanger 140.

The air inlet 116 is only communicated with the heat exchanger accommodating cavity, and can be formed by one or more grids, so that a part of external air transversely enters the heat exchanger accommodating cavity from the side wall and exchanges heat with the heat exchanger 140, on one hand, the area of the air inlet 116 is enlarged, and the smoothness of heat exchange air flow is improved; on the other hand, air is supplied to the heat exchanger accommodating chambers from two sides, so that heat exchange balance of the heat exchanger 140 can be ensured.

The partition 143 has a first through hole 145 and a second through hole 146 at the center thereof, through which the first air collecting openings 132 of the first centrifugal fan 131 and the second centrifugal fan 132 pass, respectively. The first and second

centrifugal fans

131 and 132 suck air in the heat exchanger accommodating chamber to exchange heat with the heat exchanger 140, thereby forming first and second heat exchange airflows, respectively. The first impeller 133 and the first volute 134 of the first centrifugal fan 131 are disposed in a space defined by the partition 143 and the casing 112, and an exhaust port of the first volute 134 faces a side wall of the casing 112; 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 partition 143 and the casing 112, and the exhaust port of the second scroll 154 is directed toward the other side wall of the housing 110; the inlet of the second air directing member 156 is connected to the outlet of the second volute 154.

Fig. 8 is a schematic diagram illustrating a structure in which a first air blowing unit and a second air blowing unit blow air to a first air blowing unit 128 and a second air blowing unit 129 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, the first air supply assembly and the second air supply assembly of this embodiment both use centrifugal fans as power sources of heat exchange air flow, and the first centrifugal fan 131 and the second centrifugal fan 151 may be disposed between the partition 143 and the casing 112.

The first centrifugal fan 131 accelerates the gas according to the principle that kinetic energy is converted into potential energy by using the first impeller 133 rotating at a high speed, and then decelerates and changes the flow direction, so that the kinetic energy is converted into potential energy. The first centrifugal fan 131 generally includes a first air collection port 132, a first impeller 133, and a first volute 134. The first air collecting port 132 of the first centrifugal fan 131 is used to ensure that the air flow can uniformly fill the inlet interface of the first impeller 133, so as to reduce the flow loss, in this embodiment, the first air collecting port 132 of the first centrifugal fan 131 tapers towards the first impeller 133, forming a flare, and the air exchanging heat with the heat exchanger 140 in the heat exchanger accommodating cavity can be sucked into the first impeller 133 as much as possible. When the first impellers 133 of the first centrifugal fan 131 are driven by the first high-speed motor 135 to rotate along with the shaft, gas between the first impellers 133 rotates along with the first impellers 133 to obtain centrifugal force, the gas is thrown out of the first impellers 133 and enters the first volute 134, and the gas pressure increase in the first volute 134 is guided to be discharged. After the air between the blades is exhausted, negative pressure is formed; the air in the heat exchanger accommodating chamber outside the first air collecting port 132 is continuously sucked to form a continuous air flow.

The first impeller 133 and the first volute 134 of the first centrifugal fan 131 are disposed in a space defined by the partition 143 and the casing 112, and an exhaust port of the first volute 134 faces a side wall of the casing 112; 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 1281, and is used for guiding the air flow discharged by the first centrifugal fan 131 into the first 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 cavity 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 1281 facing the first air supply cavity 125 so that the air flow in the first air collecting cavity 139 is supplied to the first air supply cavity 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 first 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 partition 143, the front-rear distance of the first drainage section 137 is smaller, and the first air supply section 138 is located below the heat exchanger accommodating chamber (i.e. below the partition 143 and the heat exchanger 140), so that the distance in the front-rear direction is greater than that of the first drainage section 137, and the air outlet of the first air supply section 138 is disposed in the front portion (corresponding to the position of the first air inlet 1281) of the first air collecting chamber 139 on the side of the first air injecting section 128.

The second air supply assembly is substantially identical in structure to the first air supply assembly. Specifically, the second centrifugal fan 151 generally includes a second gas collection port 152, a second impeller 153, and a second volute 154. The second air collecting port 152 of the second centrifugal fan 151 serves to ensure that the air flow uniformly fills the inlet interface of the second impeller 153, reducing flow losses. The second air collecting port 152 of the second centrifugal fan 151 tapers towards the second impeller 153 to form a bell mouth, so that air exchanging heat with the heat exchanger 140 in the heat exchanger accommodating cavity can be sucked into the second impeller 153 as much as possible. When the second impeller 153 of the second centrifugal fan 151 is driven by the second high-speed motor 155 to rotate along with the shaft, gas between the second impellers 153 rotates along with the second impeller 153 to obtain centrifugal force, the gas is thrown out of the second impeller 153 and enters the second volute 154, and the gas pressure increase in the second volute 154 is guided and discharged. After the air between the blades is exhausted, negative pressure is formed; the air in the heat exchanger accommodating chamber outside the second air collecting port 152 is continuously sucked to form a continuous air flow.

The second impeller 153 and the second scroll 154 of the second centrifugal fan 151 are disposed in a space defined by the partition 143 and the casing 112, and an exhaust port of the second scroll 154 faces a side wall of the casing 112; 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 and the second air inlet of the second centrifugal fan 151, and is used for guiding the air flow discharged from the second centrifugal fan 151 into the second air supplying cavity. 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 upward, 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 1281 facing the second air inlet so that the air flow of the second air collection cavity 159 is supplied to the second air supply cavity. The second air supply section 158 forms a volute shape along the air outlet direction of the second drainage section 157, reduces the wind resistance of the air flow in the second air collection cavity 159, enables the air flow to form vortex in the second air collection cavity 159, and can smoothly lead from the second air collection cavity 159 to the second air supply cavity.

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 partition 143, and the second air supplying section 158 is located below the heat exchanger accommodating chamber (i.e. below the partition 143 and the heat exchanger 140), so that the distance in the front-rear direction is greater than that of the second flow guiding section 157, and the air outlet of the second air supplying section 158 is disposed at the front portion (corresponding to the position of the second air inlet) of the second air collecting chamber 159 adjacent to the side of the second air injecting section 129.

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 independently, and the first air supply assembly and the second air supply assembly operate alternately.

The above operation modes can be used in combination with various sensors of the indoor unit 100, and by detecting the operation environment of the indoor unit 100, the operation states of the first air supply assembly, the second air supply assembly and the heat exchanger 140 are adjusted according to the preset control mode, for example, when the temperature of the whole indoor unit 100 needs to be adjusted, the first air supply assembly and the second air supply assembly can be started at the same time and continuously operate at the same wind speed (which can be determined according to the difference between the set temperature and the actual temperature); in addition, the wind speeds of the first air supply assembly and the second air supply assembly are set to be different, so that the direction of the air supply flow is correspondingly adjusted to adapt to the indoor space; in some special conditions, the first air supply assembly and the second air supply assembly can be alternatively started (for example, the first air supply assembly is started during heating, and the second air supply assembly is started during cooling). The first air supply assembly and the second air supply assembly may be alternately activated, thereby achieving a wind-swing-like effect and ensuring balanced operation of the internal components of the indoor unit 100.

Because the first air supply assembly and the second air supply assembly supply air to different air injection parts respectively and independently, the control mode is more flexible and convenient, the air supply requirements of different working conditions can be met, and the use experience of users is greatly improved.

In the wall-mounted air conditioner indoor unit 100 of this embodiment, the upper portion and the lower portion of the front panel 114 are respectively provided with an air supply opening, which is used for arranging the annular first air injection portion 128 and the annular second air injection portion 129, and sucking air from the air inlets 116 at two sides, and jetting out the air flow passing through the heat exchanger 140 and exchanging heat from the first air injection portion 128 and the second air injection portion 129, sucking the ambient air around the air supply opening, and mixing with the heat exchanging air flow with severe ambient temperature difference, so as to ensure that the sent air flow is soft, and 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, and the indoor temperature can be uniformly reduced as a whole. In addition, the shell is arranged obliquely, so that the air supply outlet is obliquely downwards, the problem that the air supply air flow is far in the same height and insufficient in convection degree in the height direction when the air supply outlet faces to the front is solved, and better use experience is provided for a user. The wall-mounted air conditioner indoor unit 100 is similar to the existing traditional wall-mounted indoor unit in overall structure, is easy to accept by users, is easy to replace the existing traditional wall-mounted indoor unit, is flexible in installation position, is compact in internal part structure, fully utilizes the space in the shell 110, and can enable the wall-mounted air conditioner indoor unit 100 to 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 heat exchanger accommodating chamber from the air inlet 116, and exchanges heat with the heat exchanger 140. A part of the air flow after heat exchange enters the first centrifugal fan 131, is accelerated by the first impeller 133, enters the first air guide component 136 through the first volute 134, is guided by the first drainage segment 137 of the first air guide component 136, and enters the first air collection cavity 139 of the first air supply segment 138. The air flow enters the annular 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 travels in a vortex at the second air collection chamber 159 eventually passing through the exhaust of the second air supply section 158 from the second air inlet into the annular second air supply chamber, thereby forming a second heat exchange air flow.

After the first heat exchange air flow enters the first air supply cavity 125, the first heat exchange air flow is guided by the rear side edge 126 of the annular inner wall 121, is ejected from the first air jet 124 at a high speed, drives air in an air circulation area at the rear part of the first air supply opening 117 to be sucked through the first air suction hole 1282, is mixed and then is sent into a room obliquely downwards, and after the second heat exchange air flow enters the second air supply cavity, the second heat exchange air flow is guided by the rear side edge of the annular inner wall of the second air jet 129, is ejected from the second air jet at a high speed, drives air in the air circulation area at the rear part of the second air supply opening 119 to be sucked through the second air suction hole 1292, and is mixed and then sent into the room obliquely downwards. The air supply structure can greatly increase the air output, and meanwhile, the air flow after heat exchange is mixed with the ambient air to become cool and not cool soft air flow, so that the flow of indoor air is quickened.

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

1. An indoor unit of a wall-mounted air conditioner, comprising:

the heat exchanger is arranged in the shell and is close to the front panel;

the first air injection part and the second air injection part are respectively arranged in the first air supply opening, a first air injection opening and a second air injection opening are respectively formed in the inner peripheral walls of the first air injection part and the second air injection part, the first air injection opening is used for injecting air flow in the first air injection part and driving ambient air in a first air suction hole defined by the inner peripheral wall of the first air injection part to be sent out obliquely downwards, the second air injection opening is used for injecting air flow in the second air injection part and driving ambient air in a second air suction hole defined by the inner peripheral wall of the second air injection part to be sent out obliquely downwards, and the first air suction hole and the second air suction hole are respectively communicated with the surrounding environment at the upstream of the air supply direction;

The first air supply assembly is used for supplying air which exchanges heat with the heat exchanger into the first air injection part and spraying the air from the first air injection port to form first heat exchange air flow, and the second air supply assembly is used for supplying second heat exchange air which exchanges heat with the heat exchanger into the second air injection part and spraying the second heat exchange air flow from the second air injection port to form second heat exchange air flow; the two sides of the housing are respectively provided with an air inlet, and the first air supply assembly and the second air supply assembly respectively suck ambient air from the air inlets;

one end of the fixing frame is fixedly connected with the back of the housing, and the other end of the fixing frame is used for being fixed on the supporting wall;

a partition plate whose center is recessed rearward to define a heat exchanger accommodating chamber for arranging the heat exchanger with the front panel, and both sides of which form rearward flanges, the air inlet being opened at a position opposite to the flanges, so that the flanges of the partition plate and the side wall of the housing define an air inlet passage from the air inlet to the heat exchanger accommodating chamber; the middle part of baffle is provided with first through-hole and the second through-hole that horizontal interval set up.

2. The wall-mounted air conditioner indoor unit of claim 1, wherein

At least a part of the lower edge of the back of the housing forms a chamfer so as to be attached to the support wall by the chamfer after the fixing frame is fixed with the support wall, thereby supporting the indoor unit.

3. The wall-mounted air conditioner indoor unit of claim 2, wherein

The housing is disposed at an inclination angle range of 5 to 30 degrees with respect to the wall.

4. The wall-mounted air conditioner indoor unit of claim 1, wherein

The first air injection part and the second air injection part are respectively formed by an annular inner wall and an annular outer wall, and

the annular outer wall and the annular inner wall of the first air injection part jointly define a first air supply cavity, the edge of the annular outer wall and the annular inner wall of the first air injection part connected with each other forms the first air injection port, and the end part of one side of the first air injection part is provided with a first air inlet communicated with the first air supply assembly, so that the first heat exchange air flow is introduced into the first air supply cavity;

the annular outer wall and the annular inner wall of the second air injection part jointly define a second air supply cavity, the edge of the annular outer wall and the annular inner wall of the second air injection part connected with each other forms the second air injection port, the end part of one side of the second air injection part is provided with a second air inlet communicated with the second air supply assembly, so that the second heat exchange air flow is introduced into the second air supply cavity, and

The first air inlet and the second air inlet are respectively arranged at two ends close to different side walls of the housing and face opposite directions.

5. The indoor unit of wall-mounted air conditioner as recited in claim 4, wherein

The rear side edge of the annular inner wall of the first air injection part is recessed towards the interior of the first air supply cavity, and the position, opposite to the rear side edge of the annular inner wall, of the annular outer wall of the first air injection part is provided with an outward flanging, so that a gap between the annular outer wall of the first air injection part and the rear side edge of the annular inner wall forms the first air injection port;

the rear side edge of the annular inner wall of the second air injection part is recessed towards the interior of the second air supply cavity, and the position, opposite to the rear side edge of the annular inner wall, of the annular outer wall of the second air injection part is provided with an outward flanging, so that a gap between the annular outer wall of the second air injection part and the rear side edge of the annular inner wall forms the second air injection port.

6. The indoor unit of wall-mounted air conditioner as recited in claim 5, wherein

The annular inner wall of the first jet section extending forwardly from its rear edge to form a continuously outwardly expanding first coanda surface; the section of the part of the annular outer wall of the first air injection part, which is positioned at the rear side of the first air injection part, is spiral, so that the air flow of the first air supply cavity is ejected from the first air injection port along the annular outer wall of the first air injection part, is sent out along the first coanda surface, and drives the ambient air in the first air pumping hole to be pumped out; and is also provided with

The annular inner wall of the second jet section extending forwardly from its rear edge to form a continuously outwardly expanding second coanda surface; and the section of the part of the annular outer wall of the second air injection part, which is positioned at the rear side of the second air injection part, is spiral, so that the air flow of the second air supply cavity is ejected from the second air injection port along the annular outer wall of the second air injection part, is sent out along the second coanda surface, and drives the ambient air in the second air pumping hole to be pumped out.

7. The indoor unit of wall-mounted air conditioner as recited in claim 4, wherein

The first air supply opening is transversely arranged at the lower part of the front panel, the second air supply opening is transversely arranged at the upper part of the front panel, the first air supply opening and the second air supply opening are symmetrically arranged relative to the transverse central line of the front panel, and the bottom wall of the housing is provided with an air guiding opening at the rear part of the first air injection part so as to be communicated with the surrounding environment through the first air pumping hole.

8. The wall-mounted air conditioner indoor unit of claim 7, wherein

The first air supply assembly includes: the first centrifugal fan is arranged between the partition plate and the housing and is used as a power source of the first heat exchange airflow, an air collecting port of the first centrifugal fan penetrates out of the first through hole to suck air from the heat exchanger accommodating cavity, and an air outlet 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 first air guide component is connected between the air outlet of the first centrifugal fan and the first air inlet, and the air inlet of the first air guide component is connected with the air outlet of the volute of the first centrifugal fan so as to guide the air flow discharged by the first centrifugal fan into the first air supply cavity;

the second air supply assembly includes: the second centrifugal fan is arranged between the partition plate and the housing and is used as a power source of the second heat exchange airflow, an air collection port of the second centrifugal fan penetrates out of the second through hole to suck air from the heat exchanger accommodating cavity, and an air outlet of a volute of the second centrifugal fan faces to the side wall of the housing on one side of the second air inlet;

the second air guide component is connected between the air outlet of the second centrifugal fan and the second air inlet, and the air inlet of the second air guide component is connected with the air outlet of the volute of the second centrifugal fan so as to guide the air flow exhausted by the second centrifugal fan into the second air supply cavity.

9. The wall-mounted air conditioner indoor unit of claim 8, 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 first air supply cavity; and is also provided with

The second air guiding member includes: a second flow guiding section having an air inlet of the second air guiding member, and at least a part of the second flow guiding section being spirally formed so as to guide an air flow direction discharged from the second centrifugal fan to an upward direction; the second air supply section is connected with the second drainage section, a second air collection cavity is defined in the second air supply section 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 second air supply cavity.

10. The wall-mounted air conditioner indoor unit of claim 9, 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;

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.