WO2018129798A1

WO2018129798A1 - Air conditioner for exchanging fresh air

Info

Publication number: WO2018129798A1
Application number: PCT/CN2017/075986
Authority: WO
Inventors: 钟志尧; 蔡序杰; 杨彤; 周何杰
Original assignee: 广东美的制冷设备有限公司; 美的集团股份有限公司
Priority date: 2017-01-16
Filing date: 2017-03-08
Publication date: 2018-07-19
Also published as: CN106678972B; CN106678972A

Abstract

An air conditioner for exchanging fresh air comprises an air duct assembly (1), an evaporator (3), and a fresh air exchange mechanism (2). The fresh air exchange mechanism (2) is provided with a first air duct, a second air duct, a first breather pipe (23) with the two ends open, and a second breather pipe (24) with the two ends open. One end of the first duct communicates with the first breather pipe (23), one end of the second air duct communicates with the second breather pipe (24), the other end of each of the first air duct and the second air duct communicates with the outside. One end of the first breather pipe (23) is connected with one end of the second breather pipe (24) by means of a connecting mechanism, and the other end of each of the first breather pipe (23) and the second breather pipe (24) is connected to the air duct assembly (1). The evaporator (3) is mounted in the connecting mechanism. The air conditioner for exchanging fresh air has a simple structure and low manufacturing costs, and the whole machine is disposed outdoor and noise can be reduced.

Description

Fresh air conditioner

Technical field

The invention relates to the technical field of household appliances, and in particular to a fresh air conditioner.

Background technique

At present, the replacement of fresh air conditioners as a household appliance has been gradually applied to various ordinary households. The fresh air conditioners include indoor units and outdoor units. In the existing fresh air conditioners, cold air or hot air is blown out through the air outlet to provide cooling or heat to the indoors; the existing fresh air conditioners are not replaced. The function of fresh air does not have the function of filtering room air. It uses the indoor air to perform circulating cooling or heating. However, after a long period of air circulation, it will gradually become oxygen-deficient and turbid due to the replacement of indoor air. People's physical and mental health is very unfavorable; if ventilation is required, the ventilator needs to be ventilated by changing the fresh air line, but in this case, the structure of the fresh air conditioner is more complicated and the cost is higher.

Summary of the invention

(1) The technical problem to be solved by the present invention is that the existing fresh air conditioner does not have a new air replacement function, and a replacement fan and the like are required when changing the fresh air, resulting in a more complicated structure and a higher manufacturing cost for the fresh air conditioner. .

(2) Technical plan

In order to solve the above technical problem, the present invention provides a fresh air conditioner, including a duct assembly, an evaporator, and a fresh air mechanism, wherein the fresh air mechanism is provided with a first air duct, a second air duct, and two ends. An open first vent pipe and a second vent pipe open at both ends, one end of the first air passage is in communication with the first vent pipe, and one end of the second air passage is in communication with the second vent pipe The other ends of the first air duct and the second air duct are connected to the outdoor, and one end of the first air duct is connected to one end of the second air duct through a connecting mechanism, the first air duct and the first The other end of the two vent pipes is respectively connected to the air duct assembly, and the evaporator is installed in the connecting mechanism.

Advantageous Effects of the Invention The fresh air conditioner of the present invention includes a duct assembly, an evaporator, and a fresh air blowing mechanism, and the first air duct, the second air duct, and the two ends are provided on the air fresh air mechanism. a vent pipe and a second vent pipe open at both ends, one end of the first air passage is in communication with the first vent pipe, and one end of the second air passage is in communication with the second vent pipe, The other end of the first air duct and the second air duct are connected to the outside, and one end of the first air duct is connected to one end of the second air duct through a connecting mechanism, the first air duct and the second air duct The other end is connected to the air duct assembly, and the evaporator is installed in the connecting mechanism.

When the fresh air conditioner is operated, the indoor air enters the second vent pipe through the pipeline, and a part of the air enters the connection mechanism through the action of the air duct assembly, and then enters the first vent pipe through the heat exchange with the evaporator, and the other indoor air enters. The second air duct in the fresh air mechanism is exhausted to the outside through the second air duct, and the fresh air in the outdoor air enters the first air duct through the first air duct of the fresh air blowing mechanism, and is mixed with the indoor air that has been exchanged by the evaporator. The air duct component disposed at the end of the first vent pipe is introduced into the room through the pipeline, thereby completing the cooling or heating of the fresh air conditioner, and simultaneously forming a fresh air circulation, discharging the indoor air, and introducing the outdoor fresh air into the room. Moreover, when fresh air is supplied to the room, it is not necessary to use a new fan or the like. The structure of the whole fresh air conditioner is simpler and the manufacturing cost is lower; and the whole fresh air conditioner is installed outdoors without an indoor unit, and the air conditioner is replaced with a new air conditioner. The air duct component on the device communicates with the indoor through the pipeline, and does not need to occupy the indoor space, and can reduce the fresh air. Noise tune runtime generated in the room, more innovative structures.

Further, the connecting mechanism is a box having an open upper end, the evaporator is disposed in the box, and the first vent pipe is sealingly connected to the box through an open end of the box, the box wall There is an air vent connected to the second vent pipe.

Further, the open end of the box body is provided with a top cover, and the top cover is provided with an air outlet communicating with the first ventilation tube, and an air cavity is formed between the box body and the top cover. The evaporator is obliquely disposed in the over-air chamber to divide the over-air chamber into a first cavity in communication with the air outlet and a second cavity in communication with the air vent.

Further, the box body includes a box body and a side plate, and the box body is connected to the side plate to form an upper end opening structure.

Further, the fresh air blowing mechanism includes a mounting seat and a total heat exchanger mounted on the mounting seat, wherein the first air passage and the second air passage are both disposed in the total heat exchanger; a first air passage is communicated with the first air passage through a first air passage provided in the mount, and the second air passage passes through a second air passage provided in the mount and the first air passage Two vent pipes are connected.

Further, the mounting seat is provided with a mounting frame for fixing the total heat exchanger, and the mounting frame is provided with an opening, and the opening is provided with a cover.

Further, the cover plate is provided with a through hole for the screw to pass through, and the mounting frame is correspondingly provided with a threaded hole, and the cover plate is fixed at the opening of the mounting frame by a screw.

Further, the air duct assembly includes a driving motor, a wind guiding ring and a wind wheel, and an output shaft of the driving motor is connected to the wind wheel, the wind wheel is installed in the air guiding ring, and can be wound around An output shaft of the drive motor rotates within the air guide ring.

Further, the air guiding mechanism further includes a motor pressing plate and a vane, the vane is connected to the air guiding ring, and the driving motor is fixed on the vane by a motor pressing plate.

Further, the wind wheel comprises a hub, a mounting plate and a plurality of moving blades, the hub is disposed at a middle portion of one side of the mounting plate, and a plurality of the moving blades are distributed on the mounting plate, and One end of the moving blade is connected to the hub; the other side of the mounting plate is provided with a shaft hole, and an output shaft of the driving motor is engaged with the shaft hole through the motor pressing plate.

Further, the vane includes a first connecting portion, a second connecting portion and a plurality of stator blades disposed between the second connecting portion of the first connecting portion, and the motor pressure plate is connected to the first connecting portion The driving motor is fixed between the first connecting portion and the motor pressing plate, and the vane is connected to the air guiding ring through a second connecting portion.

DRAWINGS

The advantages of the above and/or additional aspects of the invention will become apparent and readily understood from

1 is a perspective view of the fresh air conditioner according to the embodiment of the present invention;

2 is a perspective view of another perspective view of the fresh air conditioner according to the embodiment of the present invention;

3 is a schematic exploded view of the fresh air conditioner according to the embodiment of the present invention;

Figure 4 is a front elevational view of the fresh air conditioner according to the embodiment of the present invention;

Figure 5 is a cross-sectional view taken along line A-A of Figure 4;

Figure 6 is a perspective view of the fresh air mechanism;

Figure 7 is a schematic exploded view of the fresh air mechanism;

Figure 8 is a perspective view of the air duct assembly;

Figure 9 is a schematic exploded view of the air duct assembly;

Fig. 10 is a schematic structural view of the wind wheel.

The correspondence between the reference numerals and the component names in FIGS. 1 to 10 is as follows:

1. Air duct assembly, 11, drive motor, 111, output shaft, 12, air guide ring, 13, wind wheel, 131, hub, 132, mounting plate, 1321, shaft hole, 133, moving blade, 14, vane , 141, first connecting portion, 142, second connecting portion, 143, stator blade, 15, motor pressure plate, 2, fresh air mechanism, 21, mount, 211, first air passage, 212, second air Channel, 213, mounting box, 214, cover plate, 22, total heat exchanger, 23, first vent pipe, 24, second vent pipe, 3, evaporator, 4, box, 41, box body, 411, through hole, 42, side plate , 43, top cover, 431, air outlet, 44, air chamber, 441, first cavity, 442, second cavity.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a part of the embodiment of the invention, not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

As shown in FIG. 1 to FIG. 10, the present invention provides a fresh air conditioner, including a duct assembly 1, an evaporator 3, and a fresh air replacing mechanism 2, wherein the fresh air mechanism 2 is provided with a first air passage, a second air duct, a first air duct 23 open at both ends, and a second air duct 24 open at both ends, one end of the first air duct is in communication with the first air duct 23, and the second air duct One end is in communication with the second vent pipe 24, and the other ends of the first air channel and the second air channel are both connected to the outside, and one end of the first vent pipe 23 passes through the connection mechanism and the second vent pipe 24 One end is connected, and the other end of the first vent pipe 23 and the second vent pipe 24 are respectively connected to the air duct assembly 1, and the evaporator 3 is installed in the connecting mechanism.

When the fresh air conditioner provided by the present invention is in operation, the indoor air enters the second vent pipe 24 through the pipeline, and a part of the air enters the connection mechanism through the action of the air duct assembly 1 to perform heat exchange with the evaporator 3, and then enters the first pass. In the trachea 23, another indoor air enters the second air duct in the fresh air blowing mechanism 2, and is discharged to the outside through the second air passage, while the outdoor fresh air enters the first air duct through the first air passage of the fresh air blowing mechanism 2. The indoor air mixed with the heat exchanged by the evaporator 3 is mixed into the room through the air duct assembly 1 provided at the end of the first vent pipe 23, thereby completing the cooling or heating of the fresh air conditioner and forming a fresh air. The cycle, the indoor air is exhausted, and the outdoor fresh air is introduced into the room, and the fresh air is not required to be used when supplying fresh air to the room. The structure of the whole fresh air conditioner is simpler and the manufacturing cost is lower; The fresh air conditioner is installed in the outdoor without the indoor unit. The air duct assembly 1 on the fresh air conditioner is connected to the indoor through the pipeline, and does not need to occupy the indoor. Space, can reduce wind noise to get a new air conditioner running when generated in the room, more innovative structures.

As shown in FIG. 1 to FIG. 5, the connecting mechanism is a box 4 having an open upper end, the evaporator 3 is disposed in the box 4, and the first vent tube 23 passes through the open end of the box 4 and The box body 4 is sealingly connected. The wall of the box body 4 is provided with a through air hole 411 connected to the second air duct 24, so that indoor air enters the second air duct 24 through the pipeline during operation of the air conditioner, and a part thereof The air enters the tank 4 through the air passage module 1 and the air passage 411 on the casing 4, and exchanges heat with the evaporator 3, and the indoor air after the heat exchange enters the first vent pipe through the open end of the casing 4. 23, another indoor air enters the second air passage in the fresh air blowing mechanism 2, and is discharged to the outside through the second air passage, while the outdoor fresh air enters the first air duct 23 through the first air passage of the fresh air blowing mechanism 2 The inside is mixed with the indoor air exchanged by the evaporator 3, and is introduced into the room through the air duct assembly 1 provided at the end of the first vent pipe 23, thereby completing the cooling or heating of the fresh air conditioner, and simultaneously forming Fresh air circulation, the indoor air is discharged, and the outdoor fresh air Import indoors.

Preferably, as shown in FIG. 1 to FIG. 5, the open end of the box body 4 is provided with a top cover 43, and the top cover 43 is provided with an air outlet 431 communicating with the first ventilation tube 23, An air chamber 44 is formed between the box body 4 and the top cover 43, and the evaporator 3 is obliquely disposed in the air chamber 44 to divide the air chamber 44 into a line communicating with the air outlet 431. a cavity 441 and a second cavity 442 communicating with the through hole 411, such that indoor air passes through the air vent 411 into the second cavity 442, and needs to pass through the evaporator 3 after heat exchange It is able to enter the first cavity 441, then enter the first vent pipe 23 through the air outlet 431, and is discharged into the room through the air duct assembly 1 and the pipe.

As shown in FIG. 3, the box body 4 includes a box body 41 and a side panel 42. The box body 41 is connected to the side panel 42 to form an upper end opening structure, so that when the evaporator 3 is to be installed, the side panel can be The 42 is removed, and then the evaporator 3 is placed in the tank body 41 and fixed by mounting, and then the side panel 42 is mounted on the tank body 41 to facilitate the attachment and detachment of the evaporator 3.

It should be noted that the connecting mechanism may also be other devices, such as the connecting mechanism being a pipe, the two ends of the pipe are respectively connected with the first vent pipe 23 and the second vent pipe 24, and the The evaporator 333 is disposed in the duct, and can also achieve the purpose of performing refrigeration or heating in the present application, and cyclically replacing the air in the room during cooling or heating, and the purpose thereof does not deviate from the design of the present invention. Thought, winning is within the scope of protection of the present invention.

As shown in FIG. 1 to FIG. 7, the fresh air blowing mechanism 2 includes a mounting seat 21 and a total heat exchanger 22 mounted on the mounting seat 21, and the first air duct and the second air duct are disposed at the In the total heat exchanger 22, the first air passage and the second air passage are two air passages independent of each other; the first air passage passes through the first air passage provided in the mounting seat 21 211 is in communication with the first vent pipe 23, and the second air passage is in communication with the second vent pipe 24 through a second air passage 212 provided in the mounting seat 21, the total heat exchanger 22 The energy of the indoor air discharged can be utilized, thereby greatly saving the energy consumption of fresh air pretreatment and achieving the purpose of energy saving and ventilation, and the energy saving effect is very remarkable.

Preferably, as shown in FIG. 6 and FIG. 7, the cross-sectional shape of the total heat exchanger 22 is a rhombus shape, and the four rectangular faces of the rhombic total heat exchanger 22 are the first ones of the total heat exchanger 22, respectively. a gas end, a first gas outlet end, a second gas inlet end, and a second gas outlet end, wherein the first gas inlet end and the first gas outlet end are opposite rectangular faces of the total heat exchanger 22, An intake end and a first air outlet end constitute a first air passage, and the second air inlet end and the second air outlet end communicate to form a second air duct, and the first air duct is not connected to the second air duct The mounting seat 21 is provided with a mounting position, and the mounting position is provided with a mounting frame 213 for fixing the total heat exchanger 22, and the mounting frame 213 is provided with an opening, and the total heat exchanger 22 The opening is placed in the mounting frame 213 through the opening, and then the opening of the mounting frame 213 is provided with a cover plate 214, and the opening is blocked by the cover plate 214 to prevent the total heat exchanger 22 from being ejected from the opening. The cover plate 214 is provided with a through hole for the screw to pass through. The mounting frame 213 is correspondingly provided with a threaded hole, and the cover plate 214 is fixed by screws. At the open end of the mounting frame 213, preferably, as shown in FIGS. 6 and 7, the cover plate 214 has a diamond-shaped structure, and a through hole is formed in each of the four sides of the diamond-shaped cover plate 214. The cover plate 214 can be more firmly fixed to the two ends of the mounting frame 213413; of course, the cover plate 214 can be covered by the two open ends of the mounting frame 213 by other means, such as by a card. The purpose of the present application can also be achieved by means of connection, riveting and the like.

As shown in FIG. 7 and FIG. 8 , the mounting seat 2141 is an axisymmetric structure, and the first ventilation pipe 23 and the second ventilation pipe 24 are symmetrically disposed with respect to a central axis of the mounting seat 21, the first The axes of the vent pipe 23 and the second vent pipe 244 are parallel to the axis of the total heat exchanger 2242, that is, the open ends of the first vent pipe 23 and the second vent pipe 24 and the mounting frame 213 The opening directions are the same direction, and the openings of the first vent pipe 23 and the second vent pipe 24 can be set larger, which can increase the air volume and the air intake amount.

As shown in FIGS. 8 to 10, the air duct assembly 1 includes a drive motor 11, a wind guide ring 12, and a wind wheel 13, and an output shaft 111 of the drive motor 11 is connected to the wind wheel 13, the wind wheel 13 It is installed in the air guiding ring 12 and is rotatable in the air guiding ring 12 around the output shaft 111 of the driving motor 11. The air guiding mechanism further includes a motor pressing plate 15 and a vane 14 connected to the air guiding ring 12, and the driving motor 11 is fixed on the vane 14 by a motor pressing plate 15. The wind wheel 13 includes a hub 131, a mounting plate 132 and a plurality of moving blades 133. The hub 131 is disposed at a middle portion of one side of the mounting plate 132, and a plurality of the moving blades 133 are disposed on the mounting plate 132. And a distribution, and one end of the moving blade 133 is connected to the hub 131; the other side of the mounting plate 132 is provided with a shaft hole 1321 through which the output shaft 111 of the driving motor 11 passes. The shaft hole 1321 is fitted. Further, the vane 14 includes a first connecting portion 141, a second connecting portion 142, and a plurality of stationary vanes 143 disposed between the second connecting portions 142 of the first connecting portion 141, the motor pressing plate 15 and The first connecting portion 141 is connected, the driving motor 11 is fixed between the first connecting portion 141 and the motor pressing plate 15, and the vane 14 passes through the second connecting portion 142 and the air guiding ring 12 Connected.

When the motor is energized, the output shaft 111 of the motor starts to rotate. Since the wind wheel 13 is fixedly sleeved on the output shaft 111 of the motor, the output shaft 111 drives the wind wheel 13 to rotate, and the wind wheel 13 drives the air around it to be static. The direction of the blade 14 is compressed, because the wind wheel 13 includes the rotor blade 133, the hub 131, and the mounting plate 132, and one end of the rotor blade 133 that is connected to the hub 131 on one side of the air inlet direction is bent in the rotational direction, when the wind wheel 13 rotates. The moving blade 133 follows the rotation, and after the moving blade 133 comes into contact with the air, the moving blade 133 drives the air to rotate together. Since one end of the moving blade 133 that is connected to the hub 131 in the wind direction is bent in the rotating direction, the air does not pass from. The wind inlet side is scattered, and the moving blade 133 compresses the air from the side of the hub 131 to the outer edge, and the air flows from the mounting plate 132 and the outer wall of the vane 14 to the air outlet side, which greatly increases the total amount of compressed air of the moving blade 133. Guarantee the amount of air.

The specific working process of the present invention will be described below with reference to Figs.

Thus, when the air conditioner is in operation, the indoor air enters the second vent pipe 24 through the pipeline, and a part of the air enters the casing 4 through the air passage assembly 1 and the air vent 411 on the casing 4, and at this time, the air passage assembly 1 The air guiding ring 12 cooperates with the mounting hole, and the air duct assembly 1 sucks out indoor air and blows it into the casing 4, and the indoor air entering the casing 4 exchanges heat with the evaporator 3 to perform indoor heat exchange. The air enters the first vent pipe 23 through the open end of the casing 4, and the other indoor air enters the second air passage in the fresh air blowing mechanism 2, and exits the outdoor air through the second air passage, while the fresh air outside passes through the fresh air. The first air passage of the mechanism 2 enters the first air duct 23 and is mixed with the indoor air exchanged by the evaporator 3, and is introduced into the room through the air duct assembly 1 provided at the end of the first air duct 23, The air duct assembly 1 is connected to the air outlet of the top cover 43 through the vane 14 . The air duct assembly 1 draws out the air after heat exchange in the box 4, and then blows into the room through the pipeline to complete the fresh air. Cooling or heating of an air conditioner, while forming a fresh air cycle The air chamber is discharged, and fresh outdoor air is introduced into the chamber. In addition, the whole fresh air conditioner is installed in the outdoor without the indoor unit part, and the air duct assembly 1 on the fresh air conditioner is connected to the indoor through the pipeline, and does not need to occupy the indoor space, and can reduce the indoor generation when the fresh air conditioner is operated. The noise is more novel.

In summary, when the fresh air conditioner provided by the present invention works, the indoor air enters the second vent pipe through the pipeline, and a part of the air enters the connection mechanism through the action of the air duct assembly, and the heat is exchanged with the evaporator to enter the first In the snorkel, another indoor air enters the second air duct in the fresh air blowing mechanism, and is discharged to the outside through the second air passage, while the outdoor fresh air enters the first vent pipe through the first air passage of the fresh air blowing mechanism and is evaporated. The indoor air mixture after the heat exchange of the device is introduced into the room through the air duct assembly disposed at the end of the first vent pipe, thereby completing the cooling or heating of the fresh air conditioner, and simultaneously forming a fresh air circulation to discharge the indoor air. The outdoor fresh air is introduced into the room, and the fresh air is not required to be used in the room. The structure of the new air conditioner is simpler and the manufacturing cost is lower; the whole fresh air conditioner is installed outdoors. There is no indoor unit part, and the air duct component on the fresh air conditioner is connected to the indoor through the pipeline, and does not need to occupy the indoor Space, can reduce wind noise to get a new air conditioner running when generated in the room, more innovative structures.

In the description of the present invention, it is to be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", " The orientation or positional relationship of the indications of "upright", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, only for convenience of description of the present invention. And the simplification of the description, rather than indicating or implying that the device or component referred to must have a particular orientation, is constructed and operated in a particular orientation, and thus is not to be construed as limiting the invention. In addition, the terms "first", "second" It is for illustrative purposes only and is not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connection, or integral connection; may be mechanical connection or electrical connection; may be directly connected, or may be indirectly connected through an intermediate medium, which may be internal communication between the two elements. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art. Further, in the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specified.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalents, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.

Claims

A fresh air conditioner, comprising: a duct assembly, an evaporator, and a fresh air blowing mechanism, wherein the fresh air duct is provided with a first air duct, a second air duct, and a first air duct with two ends open And a second vent pipe open at both ends, one end of the first air passage is in communication with the first vent pipe, and one end of the second air passage is in communication with the second vent pipe, the first air passage And the other end of the second air duct is connected to the outdoor, one end of the first air duct is connected to one end of the second air duct through a connecting mechanism, and the other end of the first air duct and the second air duct The air duct assembly is respectively connected, and the evaporator is installed in the connecting mechanism.
The fresh air conditioner according to claim 1, wherein the connecting mechanism is a box having an open upper end, the evaporator is disposed in the box, and the first vent pipe passes through an open end of the box. The casing is sealingly connected, and the casing wall is provided with an air passage connected to the second ventilation pipe.
The fresh air conditioner according to claim 2, wherein the open end of the box body is provided with a top cover, and the top cover is provided with an air outlet communicating with the first air duct, the box An air chamber is formed between the body and the top cover, and the evaporator is obliquely disposed in the air chamber to divide the air chamber into a first cavity communicating with the air outlet and a second cavity in which the pores are connected.
The fresh air conditioner according to claim 3, wherein the box body comprises a box body and a side plate, and the box body is connected to the side plate to form an upper end opening structure.
A fresh air conditioner according to claim 1, wherein said fresh air blowing mechanism comprises a mounting seat and a total heat exchanger mounted on said mounting seat, said first air duct and said second air duct Provided in the total heat exchanger; the first air passage is in communication with the first air passage through a first air passage provided in the mount, and the second air passage is provided in the A second air passage in the mount is in communication with the second vent.
The fresh air conditioner according to claim 5, wherein the mounting seat is provided with a mounting frame for fixing the total heat exchanger, and the mounting frame is provided with an opening, and the opening is provided at the opening Cover plate.
The fresh air blowing mechanism for a fresh air conditioner according to claim 6, wherein the cover plate is provided with a through hole for a screw to pass through, and the mounting frame is correspondingly provided with a threaded hole, The cover plate is fixed to the opening of the mounting frame by screws.
The fresh air conditioner according to any one of claims 1 to 3, wherein the air duct assembly comprises a driving motor, a wind guiding ring and a wind wheel, and an output shaft of the driving motor is connected to the wind wheel. The wind wheel is mounted in the air guiding ring and is rotatable within the air guiding ring around an output shaft of the driving motor.
The fresh air conditioner according to claim 8, wherein the air guiding mechanism further comprises a motor pressing plate and a vane, the vane is connected to the air guiding ring, and the driving motor is fixed by a motor pressing plate. On the vane.
A fresh air conditioner according to claim 9, wherein said wind wheel comprises a hub, a mounting plate and a plurality of moving blades, said hub being disposed at a middle portion of one side of said mounting plate, said plurality of said moving The blades are distributed on the mounting plate, and one end of the moving blade is connected to the hub; the other side of the mounting plate is provided with a shaft hole, and an output shaft of the driving motor passes through the motor pressing plate Cooperating with the shaft hole.
A fresh air conditioner according to claim 10, wherein said vane includes a first connecting portion, a second connecting portion, and a plurality of stator blades provided between said first connecting portion and said second connecting portion The motor pressure plate is connected to the first connecting portion, the driving motor is fixed between the first connecting portion and the motor pressing plate, and the vane is connected to the air guiding ring through the second connecting portion .