CN106949557B

CN106949557B - Wall-mounted air conditioner all-in-one machine

Info

Publication number: CN106949557B
Application number: CN201710191884.7A
Authority: CN
Inventors: 覃强; 李玉狮
Original assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2017-03-27
Filing date: 2017-03-27
Publication date: 2023-04-07
Anticipated expiration: 2037-03-27
Also published as: CN106949557A

Abstract

The invention discloses a wall-mounted air-conditioning all-in-one machine which comprises a shell, a centrifugal fan, a mixed flow fan, a first heat exchanger and a second heat exchanger, wherein the shell is enclosed to form a cavity; the shell is provided with a rear wall used for wall-mounted installation, a first air inlet is formed in the shell corresponding to the air inlet side of the centrifugal fan, a first air outlet is formed in the shell corresponding to the air outlet side of the centrifugal fan, a second air inlet is formed in the shell corresponding to the air inlet side of the mixed flow fan, and a second air outlet is formed in the shell corresponding to the air outlet side of the mixed flow fan; the second air outlet is communicated with the outside; the first heat exchanger is arranged between the first air inlet and the air inlet side of the centrifugal fan; the second heat exchanger is arranged between the second air inlet and the air inlet side of the mixed flow fan. According to the technical scheme, the problem that indoor air after heat exchange of the second heat exchanger is accumulated at the air supply opening on the wall body to influence the heat exchange of the second heat exchanger can be avoided.

Description

Wall-mounted air conditioner all-in-one machine

Technical Field

The invention relates to the field of air conditioners, in particular to a wall-mounted air conditioner all-in-one machine.

Background

The existing integrated air conditioner is far away from the outdoor because the integrated air conditioner is positioned indoors, and large air supply pressure is often needed in order to send the indoor air subjected to heat exchange out of the outdoor through the air supply outlet. But the air supply pressure of current integral type air conditioner is little, can't satisfy this requirement for the room air after the heat transfer piles up in air supply opening department easily, thereby influences the heat transfer of heat exchanger.

Disclosure of Invention

The invention mainly aims to provide a wall-mounted air conditioner all-in-one machine, which aims to improve air supply pressure so as to avoid indoor air subjected to heat exchange from accumulating at an air supply opening.

In order to achieve the purpose, the wall-mounted air conditioner all-in-one machine provided by the invention comprises a shell which is enclosed to form a cavity, and a centrifugal fan, a mixed flow fan, a first heat exchanger and a second heat exchanger which are arranged in the cavity; the shell is provided with a rear wall used for wall-mounted installation, a first air inlet is formed in the shell corresponding to the air inlet side of the centrifugal fan, a first air outlet is formed in the shell corresponding to the air outlet side of the centrifugal fan, a second air inlet is formed in the shell corresponding to the air inlet side of the mixed-flow fan, and a second air outlet is formed in the shell corresponding to the air outlet side of the mixed-flow fan; the second air outlet is communicated with the outside; the first heat exchanger is arranged between the first air inlet and the air inlet side of the centrifugal fan; the second heat exchanger is arranged between the second air inlet and the air inlet side of the mixed flow fan.

Preferably, the housing further has a front wall opposite to the rear wall, the first air outlet and the first air inlet are both disposed on the front wall, and the first air outlet is located below the first air inlet.

Preferably, the front wall includes a vertical wall and an inclined wall connected to a lower end of the vertical wall, and the inclined wall is inclined from top to bottom in a direction approaching the rear wall; the first air outlet is located on the inclined wall, and the first air inlet is located on the vertical wall.

Preferably, a mounting plate is arranged in the shell and divides the cavity into a containing cavity and an air outlet cavity, the centrifugal fan, the mixed flow fan, the first heat exchanger and the second heat exchanger are all arranged in the containing cavity, the first air outlet is communicated with the air outlet cavity, and a communicating opening is formed in the mounting plate corresponding to the volute air outlet of the centrifugal fan.

Preferably, a baffle is arranged in the air outlet cavity, and the baffle is located between the centrifugal fan and the mixing fan and is arranged close to a volute air outlet of the centrifugal fan so as to block air blown out from the volute air outlet of the centrifugal fan at a side close to the centrifugal fan.

Preferably, the casing still have with the antetheca that the back wall is relative, the position that corresponds on the antetheca mixed flow fan air inlet side is equipped with one the second air intake, the position that corresponds on the back wall mixed flow fan air-out side is equipped with the second air outlet.

Preferably, the housing further has a plurality of side walls connecting the rear wall and the front wall, and another second air inlet is provided at a position of at least one of the side walls adjacent to the air inlet side of the mixed flow fan.

Preferably, the second heat exchanger includes a plurality of main heat exchange sections, and each main heat exchange section is disposed corresponding to one of the second air inlets.

Preferably, the second heat exchanger further comprises an auxiliary heat exchange section connected with the main heat exchange section, and the auxiliary heat exchange section and the main heat exchange sections are arranged around the air inlet side of the mixed flow fan together.

Preferably, the mixed flow fan comprises a mixed flow wind wheel and a wind guide shell, the wind guide shell is in a cylindrical shape with openings at two ends and is arranged around the mixed flow wind wheel, and the wind guide shell extends backwards to extend out of the second air outlet on the rear wall.

In the invention, by adopting the centrifugal fan and the mixed flow fan, the air supply pressure of the centrifugal fan is large, and the air supply distance is long, so that the indoor air after heat exchange can be blown to various indoor positions, the indoor air supply effect can be ensured, and the air supply device is suitable for a larger indoor space; in addition, the air quantity of the centrifugal fan is large, so that the indoor air circulation speed is high, the heat exchange efficiency can be improved, and the indoor temperature drop or temperature rise is high. The air supply pressure of the mixed flow fan is also large, and the air supply distance is far away, so that the indoor air subjected to heat exchange by the second heat exchanger can be effectively sent out outdoors, and the situation that the heat exchange of the second heat exchanger is influenced by the fact that the indoor air subjected to heat exchange by the second heat exchanger is accumulated at an air supply opening on a wall body is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art according to the structures shown in the drawings without creative efforts.

FIG. 1 is an exploded view of a wall-mounted air conditioning kiosk according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the wall-mounted all-in-one air conditioner in FIG. 1;

FIG. 3 is a schematic view of the wall-mounted air conditioner integrated unit of FIG. 2 from another perspective;

FIG. 4 is a schematic structural diagram of a portion of the wall-mounted all-in-one air conditioner shown in FIG. 1, as seen from bottom to top;

FIG. 5 is a front view of the wall-mounted air conditioner all-in-one of FIG. 1;

FIG. 6 isbase:Sub>A schematic cross-sectional view of the wall-mounted unitary air conditioner of FIG. 5 taken along line A-A.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				110	Rear wall	240	Support frame
120	Front wall	300	Mixed flow fan
				121	Vertical wall	310	Mixed flow wind wheel
122	Inclined wall	311	Annular positioning part
				130	Side wall	312	Blade
101	First air inlet	320	Air guide shell
				102	The first air outlet	400	First heat exchanger
103	Second air inlet	500	Second heat exchanger
				104	The second air outlet	510	Main heat exchange section
140	Hollow cavity	520	Auxiliary heat exchange section
				141	Containing cavity	600	Compressor assembly
142	Air outlet cavity	700	Mounting plate
				200	Centrifugal fan	710	Communication port
210	Centrifugal volute	720	Filter screen
				220	Centrifugal wind wheel	800	Baffle plate
230	Sealing frame	900	Fixing plate

The implementation, functional features and advantages of the objects of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, back, 8230; etc.) are involved in the embodiment of the present invention, the directional indications are only used for explaining the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the figure), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a wall-mounted air conditioner all-in-one machine.

In the embodiment of the present invention, as shown in fig. 1 to fig. 3, the wall-mounted all-in-one air conditioner includes a housing enclosing a cavity 140 (refer to fig. 4), and a centrifugal fan 200, a mixed flow fan 300, a first heat exchanger 400 and a second heat exchanger 500 disposed in the cavity 140; the casing is provided with a rear wall 110 for wall-mounted installation, a first air inlet 101 is arranged on the casing corresponding to the air inlet side of the centrifugal fan 200, a first air outlet 102 is arranged on the air outlet side corresponding to the centrifugal fan 200, a second air inlet 103 is arranged on the air inlet side corresponding to the mixed flow fan 300, and a second air outlet 104 is arranged on the air outlet side corresponding to the mixed flow fan 300; the second air outlet 104 is communicated with the outside; the first heat exchanger 400 is arranged between the first air inlet 101 and the air inlet side of the centrifugal fan 200; the second heat exchanger 500 is disposed between the second air inlet 103 and the air inlet side of the mixed flow fan 300.

In the embodiment of the present invention, the centrifugal fan 200 and the mixed flow fan 300 may be distributed along a horizontal direction or a vertical direction. The wall-mounted all-in-one air conditioner is installed indoors, for example, in a kitchen, and the mixed flow fan 300 blows air after exchanging heat with the second heat exchanger 500 out to the outside through the second air outlet 104. Specifically, the second air outlet 104 may be located on the rear wall 110 of the housing, and thus, an air supply opening may be opened on an indoor wall or window glass at a position corresponding to the second air outlet 104, so that the second air outlet 104 is directly communicated with the air supply opening. The second air outlet 104 can also be located on the top surface, the bottom surface or the side surface of the shell, and is communicated with the air supply outlet by arranging a hose or a bent pipe on the second air outlet 104, so that the air supply outlet can be arranged at any position of an indoor wall or window glass, and the installation position of the wall-mounted air conditioner all-in-one machine is not limited.

Specifically, the indoor air enters the air inlet side of the centrifugal fan 200 from the first air inlet 101 under the action of the centrifugal fan 200, and after exchanging heat with the first heat exchanger 400, the indoor air is blown back to the room from the first air outlet 102 by the centrifugal fan 200. Meanwhile, the indoor air enters the air inlet side of the mixed flow fan 300 from the second air inlet 103 under the action of the mixed flow fan 300, and after exchanging heat with the second heat exchanger 500, the indoor air is blown out to the outside from the second air outlet 104 by the mixed flow fan 300.

In the invention, the wall-mounted air conditioner all-in-one machine is arranged on the wall body through the rear wall 110, so that the occupation of the object placing space can be reduced, and the placing of other objects in a room is facilitated. Meanwhile, by adopting the centrifugal fan 200 and the mixed flow fan 300, the air supply pressure of the centrifugal fan 200 is large, and the air supply distance is long, so that the indoor air after heat exchange can be blown to various indoor places, the indoor air supply effect can be ensured, and the air supply device is suitable for large indoor space; in addition, the centrifugal fan 200 has a large air volume, so that the indoor air circulation speed is high, the heat exchange efficiency can be improved, and the indoor temperature drop or temperature rise is high. The air supply pressure of the mixed flow fan 300 is also large, and the air supply distance is far away, so that the indoor air after the heat exchange of the second heat exchanger 500 can be effectively sent out outdoors, and the indoor air after the heat exchange of the second heat exchanger 500 is prevented from accumulating at the air supply port on the wall body and affecting the heat exchange of the second heat exchanger 500.

In the embodiment of the present invention, the wall-mounted all-in-one air conditioner further includes a compressor assembly 600 disposed in the housing, and the centrifugal fan 200, the mixed flow fan 300, and the compressor assembly 600 may be disposed in a horizontal direction or a vertical direction. For example, in one embodiment, the centrifugal fan 200 and the mixed flow fan 300 are respectively disposed at both ends of the housing in a horizontal direction, so as to make room for the compressor assembly 600 to be installed between the centrifugal fan 200 and the mixed flow fan 300. By installing the compressor assembly 600 between the centrifugal fan 200 and the mixed flow fan 300, the centrifugal fan 200 and the mixed flow fan 300 are far apart from each other, and air blown out through the first air outlet 102 can be effectively prevented from flowing back to the second air inlet 103, thereby avoiding energy loss. Meanwhile, since the compressor assembly 600 is located between the centrifugal fan 200 and the mixed flow fan 300, the connection of the first heat exchanger 400 and the second heat exchanger 500 to the compressor assembly 600 is facilitated. Preferably, the axial direction of the mixed flow fan 300 is arranged in the front-rear direction.

Further, the housing further has a front wall 120 opposite to the rear wall 110, and a plurality of side walls 130 connecting the rear wall 110 and the front wall 120, wherein the first air outlet 102 and the first air inlet 101 are both disposed on the front wall 120, and the first air outlet 102 is located below the first air inlet 101. In this embodiment, the first air inlet 101 and the first air outlet 102 are disposed on the front wall 120, and since the front wall 120 is not shielded by a wall, the air inlet of the first air inlet 101 and the air outlet of the first air outlet 102 are not obstructed, so that the installation position of the wall-mounted all-in-one air conditioner is not limited. Meanwhile, because the first air outlet 102 is located below the first air inlet 101, when the wall-mounted air conditioner all-in-one machine is used for indoor refrigeration, cold air blown out from the first air outlet 102 sinks, so that the phenomenon that the cold air directly moves to enter the first air inlet 101 can be reduced, and reasonable energy utilization is facilitated. Particularly, when the wall-mounted air conditioner all-in-one machine is used as a kitchen air conditioner, the kitchen is often cooled only due to the high temperature of the kitchen, and energy can be saved by disposing the first air outlet 102 below the first air inlet 101.

The front wall 120 includes a vertical wall 121 and an inclined wall 122 connected to a lower end of the vertical wall 121, and the inclined wall 122 is inclined from top to bottom in a direction approaching the rear wall 110; the first air outlet 102 is located on the inclined wall 122, and the first air inlet 101 is located on the vertical wall 121. In this embodiment, by providing the inclined wall 122, the air blown out through the first air outlet 102 can be blown out obliquely downward, so that the air supply range is wider, the cold air or the hot air after heat exchange can be effectively sent to the indoor lower side, and the user experience is improved.

As shown in fig. 4, because the centrifugal fan 200 is axially air-in and radially air-out, in order to guide the air blown out from the centrifugal fan 200 to the front side of the housing, an air-out cavity 142 is further disposed in the housing, and the air-out cavity 142 is respectively communicated with the volute air outlet of the centrifugal fan 200 and the first air outlet 102, so as to guide the air at the air-out side of the centrifugal fan 200 into the first air outlet 102. Specifically, a mounting plate 700 is arranged in the housing, the mounting plate 700 divides the cavity 140 into an accommodating cavity 141 and an air outlet cavity 142, the centrifugal fan 200, the mixed flow fan 300, the first heat exchanger 400 and the second heat exchanger 500 are all arranged in the accommodating cavity 141, the first air outlet 102 is communicated with the air outlet cavity 142, a communication port 710 is arranged on the mounting plate 700 at a position corresponding to the volute air outlet of the centrifugal fan 200, and the communication port 710 communicates the volute air outlet of the centrifugal fan 200 with the first air outlet 102 so as to guide the air at the volute air outlet of the centrifugal fan 200 into the first air outlet 102. Generally, the centrifugal fan 200, the mixed flow fan 300, the first heat exchanger 400, the second heat exchanger 500, and the compressor assembly 600 are all mounted on the mounting plate 700. When the centrifugal fan 200, the compressor assembly 600 and the mixed flow fan 300 are horizontally arranged, the mounting plate 700 is horizontally arranged to divide the cavity 140 into an accommodating cavity 141 and an air outlet cavity 142 which are distributed up and down; when the centrifugal fan 200, the compressor assembly 600 and the mixed flow fan 300 are arranged up and down, the mounting plate 700 is arranged up and down to divide the cavity 140 into an accommodating cavity 141 and an air outlet cavity 142 which are distributed left and right.

In order to reduce the staying of the air in the air outlet chamber 142, so that the air can be quickly blown out from the first air outlet 102 after being blown out from the volute air outlet of the centrifugal fan 200, a baffle 800 is disposed in the air outlet chamber 142, the baffle 800 is located between the centrifugal fan 200 and the mixed-flow fan 300 and is disposed near the volute air outlet of the centrifugal fan 200 to block the air blown out from the volute air outlet of the centrifugal fan 200 at a side near the centrifugal fan 200, so that the air blown out from the volute air outlet of the centrifugal fan 200 is concentrated below the centrifugal fan 200, thereby preventing the air blown out from the volute air outlet of the centrifugal fan 200 from flowing to the side where the mixed-flow fan 300 is located.

In order to improve the quality of air blown into a room, particularly when the wall-mounted all-in-one air conditioner is installed in a kitchen, the air contains more oil smoke, so that the filter screen 720 is arranged in the communication port 710, and after the air blown out from the centrifugal fan 200 is filtered by the filter screen 720, the oil smoke in the air is greatly reduced, thereby improving the quality of the air blown into the room. Usually, a filter screen 720 is further disposed in the housing and at a position corresponding to the first air inlet 101 and the second air inlet 103, respectively, to filter air entering the fan, so as to reduce oil smoke in the air, and to reduce the influence of the oil smoke attached to the centrifugal fan 200 and the mixed flow fan 300 on the operation of the centrifugal fan 200 and the mixed flow fan 300.

The first heat exchanger 400 covers the volute air inlet of the centrifugal fan 200, and the heat exchange area of the first heat exchanger 400 is large, so that air can enter the air duct of the centrifugal fan 200 after being subjected to heat exchange with the first heat exchanger 400, the heat exchange efficiency is improved, and energy can be reasonably utilized. Preferably, the periphery of the first heat exchanger 400 is disposed beyond the periphery of the volute inlet of the centrifugal fan 200.

Referring to fig. 5 and fig. 6, specifically, the centrifugal fan 200 includes a centrifugal volute 210 and a centrifugal wind wheel 220 located in the centrifugal volute 210, a sealing frame 230 is disposed on an outer side of the centrifugal volute 210, the sealing frame 230 is disposed around an air inlet of the centrifugal volute 210, and the first heat exchanger 400 is covered on the sealing frame 230. In the embodiment of the present invention, since the outer side of the centrifugal scroll 210 is not a flat plane, when the first heat exchanger 400 is disposed at the outer side of the centrifugal scroll, there are often many gaps between the first heat exchanger 400 and the outer side, so that the air entering through the first air inlet 103 directly enters the centrifugal scroll 210 from the gaps and is discharged to the outside without passing through the first heat exchanger 400 for heat exchange, thereby affecting the heat exchange efficiency. Therefore, the air inlet of the centrifugal volute 210 is surrounded and arranged inside by arranging the sealing frame 230 outside the centrifugal volute 210, and the first heat exchanger 400 is covered and arranged on the sealing frame 230, and because the surface of the sealing frame 230 is flat, the generation of a gap between the sealing frame 230 and the first heat exchanger 400 is avoided, so that the air entering the centrifugal volute 210 is subjected to heat exchange by the first heat exchanger 400. Preferably, the sealing frame 230 is integrally disposed with the centrifugal volute 210, so that the sealing performance between the two can be improved, and the reduction of installation is facilitated.

Further, two opposite sides of the sealing frame 230 are respectively provided with a bracket 240, and the bracket 240 is disposed in a plate shape and provided with a plurality of mounting holes for mounting the first heat exchanger 400. Preferably, the surface of the sealing frame 230 facing the first heat exchanger 400 is provided with flanges turned outwards, and a support 240 is fixed to each of the two oppositely-arranged flanges.

In an embodiment, the front wall 120 is provided with the second air inlet 103 at a position corresponding to an air inlet side of the mixed flow fan 300, and the rear wall 110 is provided with the second air outlet 104 at a position corresponding to an air outlet side of the mixed flow fan 300. By arranging the second air inlet 103 on the front wall 120, the front wall 120 is not shielded by a wall, so that air inlet of the second air inlet 103 is not obstructed, and the installation position of the wall-mounted all-in-one air conditioner is not limited. Meanwhile, the second air outlet 104 is arranged on the rear wall 110, so that when the wall-mounted all-in-one air conditioner is installed, an air supply outlet can be directly arranged on the wall corresponding to the second air outlet 104, air blown out through the second air outlet 104 can be directly blown out to the outside from the air supply outlet, and components such as a communication pipeline and the like do not need to be additionally arranged for air guiding, so that the structure is simplified, and the installation steps are reduced. Of course, in other embodiments, the second air outlet 104 may be disposed at other positions of the housing besides the rear wall 110, such as the front wall 120 or the side wall 130. When the second air outlet 104 is disposed on the front wall 120 or the side wall 130, in order to ensure that the air blown out through the second air outlet 104 is smoothly exhausted to the outside, an exhaust pipe (not shown) is further disposed on the second air outlet 104, one end of the exhaust pipe is communicated with the second air outlet 104, and the other end of the exhaust pipe extends into an air inlet on a wall body to be communicated with the outside. Specifically, the exhaust pipe may be a flexible pipe or may be bent to adapt to the installation of the second air outlet 104 and the air supply outlet at different positions. In addition, when wall-hanging air conditioner all-in-one was installed in the kitchen, because be equipped with oil smoke pipe and total flue in the kitchen, total flue and outdoor intercommunication, consequently, can the other end of blast pipe sets up the three-way valve, the three-way valve includes first end, second end and third end, wherein, first end with the other end intercommunication of blast pipe, the second end with oil smoke pipe intercommunication, the third end with total flue intercommunication, so, the three-way valve will the blast pipe with oil smoke pipe inserts respectively total flue to the installation has been simplified.

In an embodiment of the present invention, in order to improve heat exchange efficiency and increase air intake, the number of the second air inlets 103 is multiple, wherein one of the second air inlets 103 is disposed on the front wall 120, and the other second air inlets 103 are disposed on the side wall 130 adjacent to the air intake side of the mixed flow fan 300, for example, another second air inlet 103 is disposed on at least one side wall 130 adjacent to the air intake side of the mixed flow fan 300. Specifically, the plurality of side walls 130 include a left side wall disposed to face the left side, and a right side wall disposed to face the right side, the centrifugal fan 200 is disposed near the left side wall, the mixed flow fan 300 is disposed near the right side wall, and the second air inlet 103 is disposed at a position of the right side wall near the air inlet side of the mixed flow fan 300. Of course, the second air inlet 103 may also be disposed on the other side walls 130.

The second heat exchanger 500 comprises a plurality of main heat exchange sections 510, each main heat exchange section 510 is arranged corresponding to one second air inlet 103, so that air entering through any second air inlet 103 can fully exchange heat with the second heat exchanger 500, and the heat exchange efficiency is improved.

Further, the second heat exchanger 500 further includes an auxiliary heat exchange section 520 connected to the primary heat exchange section 510, and the auxiliary heat exchange section 520 and the plurality of primary heat exchange sections 510 are disposed around the air intake side of the mixed flow fan 300 together. After the air enters the housing from the second air inlet 103, most of the air can directly exchange heat with the primary heat exchange section 510 arranged corresponding to the second air inlet 103, and enters the air duct of the mixed-flow fan 300 under the action of the mixed-flow fan 300, and a small part of the air moves for a distance along the circumferential direction of the mixed-flow fan 300 under the action of the mixed-flow fan 300 and then enters the air duct of the mixed-flow fan 300, so that the small part of the air can also exchange heat with the second heat exchanger 500 by arranging the secondary heat exchange section 520.

Preferably, the second heat exchanger 500 is U-shaped, and the auxiliary heat exchange section 520 is located between the centrifugal fan 200 and the mixed flow fan 300, so that the auxiliary heat exchange section 520 can also have a certain blocking effect on air, and reduce the mutual interference of air between the centrifugal fan 200 and the mixed flow fan 300.

With reference to fig. 4 and fig. 6, further, two fixing plates 900 are disposed on the mounting plate 700, rear sides of the two fixing plates 900 are abutted to the rear wall 110, and front sides of the two fixing plates 900 are respectively used for mounting left and right sides of the second heat exchanger 500. In this embodiment, due to the arrangement of the two fixing plates 900, the space between the rear side of the second heat exchanger 500 and the rear wall 110 is blocked, so that the air is prevented from being directly discharged to the outside of the room from the space without being subjected to heat exchange by the second heat exchanger 500.

The mixed flow fan 300 comprises a mixed flow wind wheel 310 and a wind guide shell 320, wherein the mixed flow wind wheel 310 comprises an annular positioning part 311 and blades 312 arranged on the annular positioning part 311; the wind guiding shell 320 is cylindrical with two open ends and is arranged around the mixed flow wind wheel 310. The distance L between the outer circumferential surface of the annular positioning portion 310 and the inner circumferential surface of the air guide casing 320 is gradually reduced from the air inlet direction to the air outlet direction. That is, in this embodiment, the wind channel of the mixed flow fan 300 is gradually reduced along the wind outlet direction, and the air is gradually compressed, so as to greatly increase the pressure of the airflow at the wind outlet of the mixed flow fan 300, thereby increasing the wind supply distance, so that the air sent out through the second wind outlet 104 can be sent to the farther outdoor, and the accumulation of the air is avoided. Specifically, the outer diameter of the annular positioning portion 311 gradually increases from the air inlet direction to the air outlet direction, and the inner diameter of the air guiding shell 320 gradually increases from the air inlet direction to the air outlet direction. Preferably, the air guide shell 320 extends backwards to extend out of the second air outlet 104 on the rear wall 110, so that an air guide convex edge is formed outside the rear wall 110, the air guide convex edge is beneficial to extending the air duct of the mixed flow fan 300, premature loss of air pressure is avoided, the air supply distance is increased, and when an exhaust pipe is arranged at the second air outlet 104, the air guide convex edge is also beneficial to fixing and mounting the exhaust pipe.

In order to facilitate control, the wall-mounted air-conditioning all-in-one machine can be further provided with a control switch on the wall body, and the control switch is electrically connected with the wall-mounted air-conditioning all-in-one machine to control the wall-mounted air-conditioning all-in-one machine to be opened or closed.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A wall-mounted air conditioner all-in-one machine is characterized by comprising a shell, a centrifugal fan, a mixed flow fan, a first heat exchanger and a second heat exchanger, wherein the shell is enclosed to form a cavity; the shell is provided with a rear wall used for wall-mounted installation, a first air inlet is formed in the shell corresponding to the air inlet side of the centrifugal fan, a first air outlet is formed in the shell corresponding to the air outlet side of the centrifugal fan, a second air inlet is formed in the shell corresponding to the air inlet side of the mixed flow fan, and a second air outlet is formed in the shell corresponding to the air outlet side of the mixed flow fan; the second air outlet is communicated with the outside; the first heat exchanger is arranged between the first air inlet and the air inlet side of the centrifugal fan; the second heat exchanger is arranged between the second air inlet and the air inlet side of the mixed flow fan;

the shell is also provided with a front wall opposite to the rear wall, the front wall comprises a vertical wall and an inclined wall connected with the lower end of the vertical wall, and the inclined wall is gradually inclined from top to bottom towards the direction close to the rear wall; the first air outlet is positioned on the inclined wall, and the first air inlet is positioned on the vertical wall;

the centrifugal fan, the mixed flow fan, the first heat exchanger and the second heat exchanger are all arranged in the accommodating cavity, the first air outlet is communicated with the air outlet cavity, and a communication port is arranged on the mounting plate corresponding to the volute air outlet of the centrifugal fan;

a baffle is arranged in the air outlet cavity, is positioned between the centrifugal fan and the mixed flow fan and is arranged close to a volute air outlet of the centrifugal fan so as to block air blown out from the volute air outlet of the centrifugal fan at one side close to the centrifugal fan;

the position on the front wall corresponding to the air inlet side of the mixed flow fan is provided with a second air inlet, and the position on the rear wall corresponding to the air outlet side of the mixed flow fan is provided with a second air outlet.

2. The wall mounted air conditioner of claim 1, wherein the housing further includes a plurality of side walls connecting the rear wall and the front wall, and wherein at least one of the side walls is provided with another second inlet adjacent to the mixed flow fan inlet side.

3. The wall-mounted all-in-one air conditioner of claim 2, wherein the second heat exchanger comprises a plurality of main heat exchange sections, and each main heat exchange section is arranged corresponding to one second air inlet.

4. The wall-mounted all-in-one air conditioner of claim 3, wherein the second heat exchanger further comprises an auxiliary heat exchange section connected with the main heat exchange section, and the auxiliary heat exchange section and the plurality of main heat exchange sections are arranged around the air inlet side of the mixed flow fan together.

5. The wall-mounted air-conditioning all-in-one machine as claimed in claim 3, wherein the mixed flow fan comprises a mixed flow wind wheel and a wind guide shell, the wind guide shell is cylindrical and is provided with two open ends, the wind guide shell surrounds the mixed flow wind wheel, and the wind guide shell extends backwards to extend out of the second wind outlet on the rear wall.