CN113719898A

CN113719898A - Machine in new trend device and air conditioning

Info

Publication number: CN113719898A
Application number: CN202111034612.9A
Authority: CN
Inventors: 张波; 刘欢欢; 李智博; 侯小丽; 邵家成; 赖海波
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2021-11-30

Abstract

The invention provides a fresh air device and an air conditioner indoor unit, wherein the fresh air device comprises: the shell is provided with an air channel, a first communicating port and a second communicating port, wherein the first communicating port is communicated with the indoor space, and the second communicating port is communicated with the outdoor space; the fan is arranged in the air duct and comprises fan blades, and the fan blades can be rotationally arranged along both the first rotating direction and the second rotating direction so as to enable the air duct to discharge dirty air outdoors or introduce fresh air indoors; wherein the first and second rotational directions are opposite in rotational direction. The fresh air device solves the problem that the structure of the fresh air device in the prior art is complex.

Description

Machine in new trend device and air conditioning

Technical Field

The invention relates to the field of household appliances, in particular to a fresh air device and an air conditioner indoor unit.

Background

The air conditioner is generally used in an internal circulation mode in a closed space, indoor air cannot be ventilated, the turbidity degree of the air is more and more, the fresh air function is vital to the diversification of the air conditioner, and due to the fact that the indoor space is large, the introduction of fresh air quantity and the discharge of dirty air are vital to the indoor environment.

In the prior art, a fresh air fan comprises a fresh air duct and a dirty air duct, wherein centrifugal fan blades are arranged in the fresh air duct, and the fresh air duct is used for introducing outdoor fresh air into a room; the dirty air duct is internally provided with centrifugal fan blades and is used for discharging indoor dirty air to the outside.

However, the above-mentioned new fan has the problem of complex structure and large occupied space, and further causes the volume of the air conditioner to be large.

Disclosure of Invention

The invention mainly aims to provide a fresh air device and an air conditioner indoor unit, and aims to solve the problem that the structure of the fresh air device in the prior art is complex.

In order to achieve the above object, according to one aspect of the present invention, there is provided a fresh air device including: the shell is provided with an air channel, a first communicating port and a second communicating port, wherein the first communicating port is communicated with the indoor space, and the second communicating port is communicated with the outdoor space; the fan is arranged in the air duct and comprises fan blades, and the fan blades can be rotationally arranged along both the first rotating direction and the second rotating direction so as to enable the air duct to discharge dirty air outdoors or introduce fresh air indoors; wherein the first and second rotational directions are opposite in rotational direction.

Furthermore, the air duct comprises a first air duct section and a second air duct section, wherein the first end of the first air duct section is communicated with the first communication port, the second end of the first air duct section is communicated with the first end of the second air duct section, and the second end of the second air duct section is communicated with the second communication port; the fan blades are arranged in the first air duct section; the second air duct section is in a horn mouth shape, and the flow area of the second air duct section is gradually reduced from the first end of the second air duct section to the second end of the second air duct section.

Furthermore, the shell comprises a first shell and a second shell, the first shell and the second shell are detachably connected, the first shell forms a first air duct section, the first communication port is arranged in the first shell, and the fan is connected with the first shell; the second casing forms the second wind channel section, and the second intercommunication mouth sets up in the second casing.

Furthermore, the fan also comprises a first driving piece, and the first driving piece is connected with the fan blades so as to drive the fan blades to rotate; the first shell comprises a mounting frame, and the first driving piece is detachably connected with the mounting frame.

Further, the fan is an axial flow fan.

Furthermore, the fresh air device also comprises a filtering mechanism, the filtering mechanism is provided with a fluid channel, and the second communication port is communicated with the outside through the fluid channel; the filtering mechanism includes: the filter element is movably arranged and is provided with a filtering position which is positioned in the fluid channel and used for filtering the gas passing through the fluid channel and an avoiding position which is positioned outside the fluid channel; the filter piece is switched between the filtering position and the avoiding position so as to enable the filter piece to be positioned at the avoiding position when the fresh air device discharges the air to the outside and enable the filter piece to be positioned at the filtering position when the fresh air device introduces the fresh air to the inside.

Further, filtering mechanism still includes second driving piece and drive assembly, and the second driving piece passes through drive assembly and is connected with filtering the piece to the drive is filtered and is filtered the position and dodge and switch between the position.

Further, new trend device still includes: the fan is in communication connection with the control module; the air quality detector is in communication connection with the control module and is used for detecting the indoor air quality so as to enable the control module to control the fan blades of the fan to rotate along a first rotating direction when the air quality detector detects that the indoor air quality is lower than a preset air quality; and when the air quality detector detects that the indoor air quality is higher than the preset air quality, the control module controls the fan blades of the fan to rotate along the second rotating direction.

Further, new trend device still includes: the grid is connected with the shell and arranged at the first communication port.

According to another aspect of the present invention, an indoor unit of an air conditioner is provided, which includes a fresh air device, wherein the fresh air device is the above fresh air device.

The fresh air device is arranged in an air-conditioning indoor unit and used for discharging indoor dirty air to the outside or introducing outdoor fresh air into the inside of the room. This new trend device is through setting up along the equal rotatable fan blade of first direction of rotation and second direction of rotation, makes the wind channel both can be used to the indoor new trend of leading in, can be used to again to outdoor exhaust dirty wind, need not to set up two sets of air duct systems and two sets of fans, has simplified the structure of new trend device, and occupation space is little, and then has reduced the volume of machine in the air conditioning.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows an exploded view of an embodiment of a fresh air device according to the invention;

fig. 2 shows a schematic view of a first housing of a fresh air device according to the invention;

fig. 3 shows a schematic view of a second housing of the fresh air device according to the invention;

FIG. 4 is a schematic view of the fan of the fresh air device according to the present invention;

FIG. 5 illustrates a front view of a filter mechanism of a fresh air device according to the present invention;

FIG. 6 is a schematic view of a first angle of a filter mechanism of a fresh air device according to the present invention;

FIG. 7 is a schematic view of a second angle of the filter mechanism of the fresh air device according to the present invention;

fig. 8 shows a schematic view of the structure of a grille of a fresh air device according to the invention;

fig. 9 shows a flow chart of an embodiment of a fresh air device according to the invention.

Wherein the figures include the following reference numerals:

10. a housing; 11. an air duct; 12. a first communication port; 13. a second communication port; 14. a first air duct section; 15. a second air duct section; 16. a first housing; 17. a second housing; 18. a mounting frame; 181. a first fastening hole; 19. a third fastening hole; 20. a fan; 21. a fan blade; 22. a first driving member; 221. a second fastening hole; 30. a filtering mechanism; 31. a fluid channel; 311. a third communication port; 312. a fourth communication port; 32. a filter member; 33. a second driving member; 34. a housing; 40. a grid; 41. a fourth fastening hole; 50. an air quality detector.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The present invention provides a fresh air device, please refer to fig. 1 to fig. 9, including: a housing 10, the housing 10 forming an air duct 11 and a first communicating port 12 and a second communicating port 13 communicating with the air duct 11, the first communicating port 12 being for communicating with the indoor, the second communicating port 13 being for communicating with the outdoor; the fan 20 is arranged in the air duct 11, the fan 20 comprises fan blades 21, and the fan blades 21 can be rotatably arranged along both a first rotating direction and a second rotating direction so that the air duct 11 can discharge dirty air outdoors or introduce fresh air indoors; wherein the first and second rotational directions are opposite in rotational direction; when the fan blade 21 rotates along the first rotation direction, the indoor air enters the air duct 11 from the first communicating port 12 and is discharged to the outside through the second communicating port 13; when the fan 21 rotates in the second rotation direction, the outdoor air enters the air duct 11 through the second communication port 13 and is sent to the indoor space through the first communication port 12.

The fresh air device is arranged in an air-conditioning indoor unit and used for discharging indoor dirty air to the outside or introducing outdoor fresh air into the inside of the room. This new trend device is through setting up along the equal rotatable fan blade 21 of first direction of rotation and second direction of rotation, makes wind channel 11 both can be used to indoor new trend of leading in, can be used to outdoor exhaust dirty wind again, need not to set up two sets of air duct systems and two sets of fans, has simplified the structure of new trend device, and occupation space is little, and then has reduced the volume of air conditioning indoor set.

In this embodiment, the air duct 11 includes a first air duct section 14 and a second air duct section 15, a first end of the first air duct section 14 is communicated with the first communication port 12, a second end of the first air duct section 14 is communicated with a first end of the second air duct section 15, and a second end of the second air duct section 15 is communicated with the second communication port 13; wherein, the fan blade 21 is arranged in the first air duct section 14; the second air duct section 15 is in a bell mouth shape, and the flow area of the second air duct section 15 is gradually reduced from the first end of the second air duct section 15 to the second end of the second air duct section 15.

In specific implementation, when the fan blade 21 rotates in the second rotation direction, the fresh air diffuses the airflow to the edge of the fan blade 21 through the bell-mouth arc surface of the second air duct section 15, and the fresh air is rapidly sent out of the air duct, so that a negative pressure cavity is formed between the fan blade 21 and the second air duct section 15, and an outdoor air source is continuously sucked into the air duct 11; when the fan blades 21 rotate along the first rotating direction, indoor dirty air is sucked into the air channel 11 by the fan blades 21, the second air channel section 15 is horn-shaped, and the second air channel section 15 and the fan blades form a high-pressure cavity to extrude the indoor dirty air out of a room.

In the present embodiment, the housing 10 includes a first housing 16 and a second housing 17, the first housing 16 and the second housing 17 are detachably connected, the first housing 16 forms the first air duct section 14, the first communication port 12 is disposed in the first housing 16, and the fan 20 is connected to the first housing 16; the second casing 17 forms the second air passage section 15, and the second communication port 13 is provided in the second casing 17.

Specifically, the fan 20 is disposed within the first air duct section 14 of the first housing 16.

In this embodiment, the fan 20 further includes a first driving member 22, and the first driving member 22 is connected to the fan blade 21 to drive the fan blade 21 to rotate; the first housing 16 includes a mounting bracket 18, and a first driver 22 is removably coupled to the mounting bracket 18. This arrangement facilitates the mounting and dismounting of the fan 20 to and from the housing 10.

Specifically, the mounting bracket 18 is provided with a first fastening hole 181, the first driver 22 is provided with a second fastening hole 221, and the first driver 22 is mounted on the mounting bracket 18 by a first fastening member inserted into the first and second fastening holes 181 and 221.

Optionally, the first fastener is a screw.

Optionally, the first drive member 22 is an electric motor.

In the present embodiment, the fan 20 is an axial fan. Wherein, axial fan's induced draft ability is stronger.

In this embodiment, the fresh air device further includes a filtering mechanism 30, the filtering mechanism 30 has a fluid channel 31, and the second communication port 13 communicates with the outside of the room through the fluid channel 31; the filter mechanism 30 includes: filter 32, filter 32 movably sets up, and filter 32 has the filter position that is located fluid passage 31 in order to carry out the filtration to the gas through fluid passage 31 and is located the dodge position outside fluid passage 31, and filter 32 switches between filter position and dodge position to make filter 32 be in the dodge position when new trend device is to the outdoor blowdown wind, and make filter 32 be in the filter position when new trend device is to indoor induced fresh air. This arrangement protects the filter element 32 from the dirty air consuming its cleaning capacity.

Specifically, the first end of the fluid passage 31 forms a third communication port 311, the second end of the fluid passage 31 forms a fourth communication port 312, the third communication port 311 communicates with the second communication port, the fourth communication port 312 is used for communicating with the first end of the outdoor exhaust duct, and the second end of the outdoor exhaust duct communicates with the outside. Wherein the filter element 32 is located at the fourth communication port 312 in the filtering position. When sending new trend, filter piece 32 removes to the fourth intercommunication mouth and filters the new trend of outdoor entering, will filter piece 32 and remove from fourth intercommunication mouth 312 when blowdown wind, and the protection is filtered piece 32 and is not consumed the filter screen purification performance by dirty wind.

In one embodiment, the filter element 32 moves in a reciprocating linear motion.

Optionally, the filter 32 is a filter screen.

Specifically, the filter mechanism 30 further includes a housing 34, the housing 34 forms the fluid passage 31, the third communication port 311, and the fourth communication port 312, and the filter member 32 is connected to the housing 34.

In this embodiment, the filtering mechanism 30 further includes a second driving member 33 and a transmission assembly, and the second driving member 33 is connected to the filtering member 32 through the transmission assembly to drive the filtering member 32 to switch between the filtering position and the avoiding position. Such an arrangement may enable movement of the filter elements 32. Wherein the second driver 33 is arranged on the housing 34.

In specific implementation, when the fresh air device sucks fresh air from the outside, the filter element 32 is moved to the fourth communication port 312 by the transmission assembly (the transmission assembly includes but is not limited to a rack and pinion mechanism, a movable pulley block mechanism and a fixed pulley block mechanism) driven by the second driving element 33 to filter the outdoor air, and when the fresh air device exhausts indoor sewage, the transmission assembly driven by the second driving element 33 of the filter element 32 is moved away from the fourth communication port 312 to reduce the air exhaust resistance and protect the filtering effect of the filter screen, so that the effects of quickly exhausting air and prolonging the service life of the filter screen can be realized.

Optionally, the second drive member 33 is an electric motor.

In this embodiment, the new trend device still includes: the fan 20 is in communication connection with the control module; the air quality detector 50 is in communication connection with the control module, and the air quality detector 50 is used for detecting the indoor air quality so as to enable the control module to control the fan blades 21 of the fan 20 to rotate along a first rotating direction when the air quality detector 50 detects that the indoor air quality is lower than a preset air quality; and when the air quality detector 50 detects that the indoor air quality is higher than the preset air quality, the control module controls the fan blades 21 of the fan 20 to rotate along the second rotation direction. The control flow related to the air quality detector 50 is shown in fig. 9.

In specific implementation, the air quality detector 50 may detect indoor air quality, when the indoor air quality is detected to be poor in quality (i.e., the indoor air quality is lower than a preset air quality), the fan blade 21 rotates in a first rotation direction, the fresh air device discharges the indoor air, and at this time, the filter member 32 is in an avoidance position and does not perform air filtration; on the contrary, when the air quality is detected to be in the quality (namely the indoor air quality is higher than the preset air quality), the fan blade 21 rotates along the second rotating direction, at this moment, the filtering piece 32 is in the filtering position, the air filtering is carried out, and the fresh air device conveys the fresh air indoors.

Specifically, the air quality detector 50 includes a sensor assembly for detecting a gas concentration, and when the sensor assembly detects that the gas concentration is higher than a preset gas concentration, the indoor air quality is lower than the preset air quality; when the sensor assembly detects that the gas concentration is lower than the preset gas concentration, the indoor air quality is higher than the preset air quality; wherein the sensor assembly can detect CO₂Gas concentration of one or more gases of CO, formaldehyde.

Specifically, the air quality detector 50 is provided on the first casing 16.

In this embodiment, the new trend device still includes: and a grill 40 connected to the case 10, the grill 40 being disposed at the first communication port 12. Specifically, the grill 40 is connected to the first housing 16.

Specifically, the grill 40 is detachably connected to the housing 10. Optionally, the grille 40 is snap-fitted to the housing 10; and/or the grill 40 is connected to the housing 10 by a second fastener. Such an arrangement facilitates mounting and dismounting of the grille 40.

Specifically, the case 10 is provided with third fastening holes 19, the grill 40 is provided with fourth fastening holes 41, and the grill 40 is connected to the case 10 by second fastening members inserted into the third fastening holes 19 and the fourth fastening holes 41; wherein the second fastener is a screw.

In particular, the fan is mounted adjacent to the grille 40 to reduce wind losses.

In specific implementation, the fan 20 is installed on the first casing 16, then the grille 40 is installed, then the second casing 17 is installed, and finally the filtering mechanism 30 is installed.

The utility model provides a new trend device only uses an axial compressor fan blade to carry out the input of new trend and the output of dirty wind, utilize its positive and negative rotation to change the direction of blowing, can realize simplifying new trend device structure, increase the effect of fresh air volume, a filter screen mechanism is designed simultaneously, filter screen (being filter promptly) among the filter screen mechanism can reciprocate, can move the filter screen to fluid passage when sending the new trend, purify the new trend, move away from fluid passage with the filter screen when carrying out indoor dirty wind and discharging, further still there is the air quality detector, carry out real-time air quality to the room air and detect, can have the room air condition to carry out the interior dirty wind of row, send the mode switch of outdoor new trend, realize the intelligent regulation and control of new fan.

The new trend device of this application compares in the new fan of independently advancing new trend, the independent exhaust air of current a plurality of centrifugal fan blades, and single axial fan blade new trend flow is big, and wind channel simple structure, and the new trend flow advantage is obvious under the same volume.

The invention also provides an air-conditioning indoor unit which comprises a fresh air device, wherein the fresh air device is the fresh air device in the embodiment.

Specifically, this new trend device can use as the new trend module in cabinet air conditioner.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fresh air device, comprising:

the air conditioner comprises a shell (10), wherein the shell (10) forms an air duct (11) and a first communication port (12) and a second communication port (13) which are communicated with the air duct (11), the first communication port (12) is used for being communicated with the indoor space, and the second communication port (13) is used for being communicated with the outdoor space;

the fan (20) is arranged in the air duct (11), and the fan (20) comprises fan blades (21); the fan blades (21) are rotatably arranged along a first rotating direction and a second rotating direction, so that the air duct (11) can discharge dirty air outdoors or introduce fresh air indoors; wherein the first and second rotational directions are opposite in rotational direction.

2. The fresh air device according to claim 1, wherein the air duct (11) comprises a first air duct section (14) and a second air duct section (15), a first end of the first air duct section (14) is communicated with the first communication port (12), a second end of the first air duct section (14) is communicated with a first end of the second air duct section (15), and a second end of the second air duct section (15) is communicated with the second communication port (13);

the fan blades (21) are arranged in the first air duct section (14); the second air duct section (15) is in a horn mouth shape, and the flow area of the second air duct section (15) is gradually reduced from the first end of the second air duct section (15) to the direction of the second end of the second air duct section (15).

3. The fresh air device according to claim 2, characterized in that the housing (10) comprises a first housing (16) and a second housing (17), the first housing (16) and the second housing (17) being detachably connected, the first housing (16) forming the first air duct section (14), the first communication port (12) being provided in the first housing (16), the fan (20) being connected to the first housing (16); the second casing (17) forms a second air duct section (15), and the second communication port (13) is provided in the second casing (17).

4. The fresh air device according to claim 3, wherein the fan (20) further comprises a first driving member (22), and the first driving member (22) is connected with the fan blade (21) to drive the fan blade (21) to rotate;

the first housing (16) includes a mounting bracket (18), and the first drive member (22) is removably coupled to the mounting bracket (18).

5. The fresh air device as claimed in any of claims 1 to 4, wherein the fan (20) is an axial fan.

6. The fresh air device as claimed in any one of claims 1 to 4, further comprising a filter mechanism (30), wherein the filter mechanism (30) has a fluid passage (31), and the second communication port (13) communicates with the outside of the room through the fluid passage (31); the filter mechanism (30) includes:

a filter element (32), the filter element (32) being movably arranged, the filter element (32) having a filtering position within the fluid passage (31) for filtering gas passing through the fluid passage (31) and an avoidance position outside the fluid passage (31); the filter element (32) is switched between the filtering position and the avoiding position, so that the filter element (32) is positioned at the avoiding position when the fresh air device discharges the air outdoors, and the filter element (32) is positioned at the filtering position when the fresh air device introduces the fresh air indoors.

7. The fresh air device as claimed in claim 6, wherein the filter mechanism (30) further comprises a second drive member (33) and a transmission assembly, the second drive member (33) being connected to the filter member (32) via the transmission assembly for switching the filter member (32) between the filter position and the bypass position.

8. The fresh air device as claimed in any one of claims 1 to 4, further comprising:

the fan (20) is in communication connection with the control module;

the air quality detector (50) is in communication connection with the control module, and the air quality detector (50) is used for detecting indoor air quality so that when the air quality detector (50) detects that the indoor air quality is lower than preset air quality, the control module controls the fan blades (21) of the fan (20) to rotate along the first rotating direction; and when the air quality detector (50) detects that the indoor air quality is higher than the preset air quality, the control module controls the fan blades (21) of the fan (20) to rotate along the second rotating direction.

9. The fresh air device as claimed in any one of claims 1 to 4, further comprising:

a grill (40) connected to the housing (10), the grill (40) being disposed at the first communication port (12).

10. An indoor unit of an air conditioner, comprising a fresh air device, wherein the fresh air device is the fresh air device of any one of claims 1 to 9.