CN112302994A

CN112302994A - Fan assembly and cabinet air conditioner with same

Info

Publication number: CN112302994A
Application number: CN201910713223.5A
Authority: CN
Inventors: 董明珠; 陈诚; 何振健; 王千千; 戴志炜; 吴晓岳
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2021-02-02

Abstract

The invention provides a fan assembly and a cabinet air conditioner with the same. The fan assembly comprises an air duct; mixed flow fan portion, at least partial mixed flow fan portion sets up in the wind channel, and mixed flow fan portion includes: a hub; the mixed flow blades are arranged at intervals along the circumferential direction of the hub, and are arranged at intervals from the side wall of the air duct; the driving part is connected with the hub and can drive the hub to drive the mixed flow blades to be rotationally arranged relative to the air channel; wherein, a gap is arranged on the partial side wall of the air duct facing to one side of the mixed flow blade. Through set up the breach on the wind channel, can improve the air-out efficiency in wind channel effectively. Adopt the fan subassembly of this structure, cancelled the fan blade outer lane structure among the prior art, made the simple structure of the fan subassembly of this application, air inlet and air-out efficiency are higher, have improved the practicality of the cabinet air conditioner that has this fan subassembly effectively.

Description

Fan assembly and cabinet air conditioner with same

Technical Field

The invention relates to the technical field of air conditioning equipment, in particular to a fan assembly and a cabinet air conditioner with the same.

Background

The existing air-conditioning products are widely used, and the fan blades respectively comprise three types of centrifugal fan blades, cross-flow fan blades and axial-flow fan blades, various fan blades respectively have different effects, the requirements of different air-conditioning product developments are met, and different fan blade forms are configured to meet the machine type development for different use requirements and different air inlet and outlet mode requirements. The mixed flow fan blade used in the prior art has a complex structure, and the loss of the searched air volume is large, so that the problem of poor use experience of a user is caused.

Disclosure of Invention

The invention mainly aims to provide a fan assembly and a cabinet air conditioner with the same, and aims to solve the problem that mixed flow fan blades in the prior art are complex in structure.

In order to achieve the above object, according to one aspect of the present invention, there is provided a fan assembly including: an air duct; mixed flow fan portion, at least partial mixed flow fan portion sets up in the wind channel, and mixed flow fan portion includes: a hub; the mixed flow blades are arranged at intervals along the circumferential direction of the hub, and are arranged at intervals from the side wall of the air duct; the driving part is connected with the hub and can drive the hub to drive the mixed flow blades to be rotationally arranged relative to the air channel; wherein, a gap is arranged on the partial side wall of the air duct facing to one side of the mixed flow blade.

Further, the fan assembly still includes: the splitter blade, splitter blade is connected with wheel hub, and splitter blade is a plurality of, is provided with a splitter blade between the adjacent mixed flow blade, and splitter blade's length along vertical direction is less than mixed flow blade's length along vertical direction.

Furthermore, the mixed flow fan part is arranged in the first end of the air duct, the first end of the air duct forms an air outlet section, and the second end of the air duct forms an air inlet section.

Further, the wind channel includes: the mixed flow fan part is arranged in the first composition section, and a gap is formed in the side wall of the first composition section; a second component section, wherein the first end of the second component section is connected with the first end of the first component section, and the second end of the first component section forms an outlet end; the first end of the third component section is connected with the second end of the second component section, the second end of the third component section forms an inlet end, the inner diameter of the first end of the second component section to the second end of the second component section is gradually reduced, and/or the third component section is of a cylindrical structure with the same diameter.

Further, the inner diameter of the first end of the first constituent segment to the second end of the first constituent segment is arranged to be gradually reduced.

Further, the breach is the arc, and the breach extends the setting along the circumference of wind channel.

Further, the arc of the notch is 180 °.

Further, the projection length of the second component section on the horizontal plane is smaller than the length between the farthest end of the mixed flow blade outer edge and the minimum inner diameter of the hub.

According to another aspect of the invention, a cabinet air conditioner is provided, which comprises a fan assembly, wherein the fan assembly is the fan assembly.

Further, the cabinet air conditioner includes: the shell is provided with an upper air inlet and a lower air inlet; the heat exchanger, the heat exchanger sets up in the casing, is provided with at least one fan subassembly in the casing, and the fan subassembly can be with the air current that lies in outside the casing through last wind gap introduction casing in with the heat exchanger carry out the heat exchange after, outside the shell is discharged to the rethread wind gap, and perhaps, the fan subassembly can be with the air current that lies in outside the shell through the wind gap introduction casing down in with the heat exchanger carry out the heat exchange after, outside the shell is discharged to the rethread wind gap.

Further, the heat exchanger separates into cavity and cavity down with the casing, and the fan subassembly sets up in the cavity down, goes up the cavity and is provided with fan portion, and fan portion includes last cavity wind channel, is provided with mixed flow fan portion in the first end in last cavity wind channel, and wherein, the internal diameter that goes up the first end in cavity wind channel and supreme the second end in cavity wind channel sets up after gradually increasing gradually earlier and reduces gradually again, goes up the first end in cavity wind channel and forms the air inlet section, goes up the second end in cavity wind channel and forms the air-out section.

Further, the fan portion still includes: the guide vanes are arranged in the second end of the upper cavity air channel and connected with the side wall of the upper cavity air channel, the guide vanes are arranged at intervals along the circumferential direction of the upper cavity air channel, and the guide vanes are all positioned above the mixed flow fan part.

By applying the technical scheme of the invention, the air outlet efficiency of the air duct can be effectively improved by arranging the notch on the air duct. Adopt the fan subassembly of this structure, cancelled the fan blade outer lane structure among the prior art, made the simple structure of the fan subassembly of this application, air inlet and air-out efficiency are higher, have improved the practicality of the cabinet air conditioner that has this fan subassembly effectively.

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 a schematic structural view of a first embodiment of a mixed flow fan section according to the present invention;

FIG. 2 shows a schematic structural view of a second embodiment of a mixed flow fan section according to the present invention;

FIG. 3 shows a schematic structural view of a first embodiment of a wind tunnel according to the present invention;

FIG. 4 shows a cross-sectional structural schematic view of a first embodiment of a duct according to the present invention;

FIG. 5 is a schematic structural diagram illustrating an embodiment of an upper cavity air duct in accordance with the present invention;

FIG. 6 shows a cross-sectional schematic view of an embodiment of an upper cavity duct according to the present invention.

Wherein the figures include the following reference numerals:

10. a guide vane;

20. a notch;

30. a mixed flow fan part; 31. an upper cavity air duct; 321. a hub; 322. a mixed flow blade; 323. a splitter blade;

41. an air duct; 411. a first composition segment; 412. a second composition segment; 413. and the third group is segmented.

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 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.

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 terms so used are 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.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

Referring to fig. 1 to 6, according to an embodiment of the present invention, a fan assembly is provided.

Specifically, as shown in fig. 1 to 4, the fan assembly includes a duct 41; the mixed flow fan part 30, at least part of the mixed flow fan part 30 is arranged in the air duct 41, the mixed flow fan part 30 includes a hub 321, mixed flow blades 322 and a driving part. The mixed flow blade 322 is plural, and the plural mixed flow blades 322 are provided at intervals in the circumferential direction of the hub 321. The mixing blades 322 are disposed at a distance from the side walls of the wind tunnel 41. The driving part is connected with the hub 321, and the driving part can drive the hub 321 to drive the mixed flow blades 322 to be rotationally arranged relative to the air duct 41; wherein, the side wall of the portion of the air duct 41 facing to the mixed flow blade 322 is provided with a notch 20.

In this embodiment, through set up the breach on the wind channel, can improve the air-out efficiency in wind channel effectively. Adopt the fan subassembly of this structure, cancelled the fan blade outer lane structure among the prior art, made the simple structure of the fan subassembly of this application, air inlet and air-out efficiency are higher, have improved the practicality of the cabinet air conditioner that has this fan subassembly effectively.

Wherein the fan assembly further comprises splitter blades 323. The splitter blade 323 is connected with the hub 321, the splitter blade 323 is multiple, one splitter blade 323 is arranged between adjacent mixed flow blades 322, and the length of the splitter blade 323 in the vertical direction is smaller than that of the mixed flow blades 322 in the vertical direction. The air suction and air outlet efficiency of the fan part can be improved by the arrangement.

As shown in fig. 3 and 4, the mixed flow fan unit 30 is disposed in the first end of the air duct 41. The first end of the air duct 41 forms an air outlet section. The second end of the air duct 41 forms an air intake section. The air duct 41 includes a first component section 411, a second component section 412, and a third component section 413. The mixed flow fan section 30 is disposed within the first component section 411. The side wall of the first component 411 is formed with a notch 20. A first end of the second constituent segment 412 is connected to a first end of the first constituent segment 411. The second end of the first constituent section 411 forms an outlet end. A first end of the third constituent segment 413 is connected to a second end of the second constituent segment 412. The second end of the third constituent segment 413 forms an inlet end, and the first end of the second constituent segment 412 is disposed with an inner diameter gradually decreasing from the second end of the second constituent segment 412. Of course, the third grouping segments 413 may be arranged in a cylindrical structure with a constant diameter. The arrangement can also improve the air outlet efficiency and the air inlet efficiency of the fan part.

As shown in fig. 4, the first end of the first composition section 411 is disposed to have an inner diameter gradually decreasing to the second end of the first composition section 411. The arrangement enables the necking section to be formed at the first assembly section 411, and effectively improves the air suction and air outlet efficiency of the fan part.

Preferably, the notch 20 is arc-shaped, and the notch 20 extends along the circumferential direction of the air duct 41. Wherein the arc of the notch 20 is 180 °. The air outlet quantity of the air duct can be improved by the arrangement.

In order to further improve the wind outlet efficiency of the fan part, the projection length of the second constituent segment 412 on the horizontal plane may be set to be smaller than the length between the farthest end of the outer edge of the mixed flow blade 322 and the smallest inner diameter of the hub 321.

The fan assembly in the above embodiment may also be used in the technical field of air conditioner equipment, that is, according to another aspect of the present invention, there is provided a cabinet air conditioner, including a fan assembly, where the fan assembly is the fan assembly in the above embodiment. The cabinet air conditioner comprises a shell and a heat exchanger. The shell is provided with an upper air inlet and a lower air inlet. The heat exchanger sets up in the casing, is provided with at least one fan subassembly in the casing, and the fan subassembly can be with the air current that lies in outside the casing through last wind gap introduce in the casing carry out the heat exchange with the heat exchanger after, outside the rethread wind gap discharge casing. The fan assembly can also introduce airflow outside the shell into the shell through the lower air inlet to exchange heat with the heat exchanger and then discharge the airflow outside the shell through the upper air inlet. This cabinet-type air conditioner can realize two kinds of air-out modes promptly, and the user can be according to selecting the mode of heating or the corresponding air-out mode of refrigeration mode selection, and air-out mode under the general refrigeration mode selection, the mode selection of heating.

Specifically, the heat exchanger separates the housing into an upper cavity and a lower cavity. The fan subassembly sets up in the cavity down. The upper chamber is provided with a fan portion, which includes an upper chamber duct 31, as shown in fig. 5 and 6. A mixed flow fan part 30 is arranged in the first end of the upper cavity air duct 31. The first end of the upper cavity air duct 31 is gradually increased and then gradually reduced to the inner diameter of the second end of the upper cavity air duct 31, the first end of the upper cavity air duct 31 forms an air inlet section, and the second end of the upper cavity air duct 31 forms an air outlet section.

In order to improve the air intake efficiency of the upper cavity air duct 31, the fan part is further provided with guide vanes 10. The guide vane 10 is disposed in the second end of the upper cavity air channel 31 and connected to the sidewall of the upper cavity air channel 31. The number of the guide vanes 10 is plural, and the plurality of guide vanes 10 are arranged at intervals along the circumferential direction of the upper cavity air duct 31. The guide vanes 10 are all positioned above the mixed flow fan part 30.

Specifically, the cabinet air conditioner of this application utilizes the novel mixed flow fan that has special lobate shape to realize the wind channel structure of reversible air-out from top to bottom. The centrifugal fan blade can change the air inlet and outlet direction, the axial flow fan blade can meet the requirement of straight air inlet and outlet, the newly-appeared mixed flow fan is a fan blade between the centrifugal fan blade and the axial flow fan blade according to the characteristics of the centrifugal fan blade and the axial flow fan blade, the air inlet of a fan product from a lower air inlet and the air suction of an upper air outlet can be realized by the traditional mixed flow fan blade mode, the blade shape of the mixed flow fan blade is innovatively designed, the outer sealing ring of the fan blade is cancelled, the distortion degree of the blade shape is reduced, the centrifugal effect of the fan blade is improved, the characteristics of the fan blade are comprehensively. The novel mixed flow fan blade strengthens the centrifugal acting effect, and the scheme is further optimized for the air channel for air outlet under the characteristic, and a half of the circumference of the side wall of the lower air channel is removed, so that the centrifugal acting effect is exerted, and the efficiency of the fan is optimized.

The existing fan blades applied to the air conditioner are respectively provided with a centrifugal fan blade, a cross-flow fan blade and an axial flow fan blade, wherein the three fan blades are different, the centrifugal fan blade can change the axial direction of air inlet and outlet into the radial direction of 90 degrees, the cross-flow fan blade can realize the radial direction of air inlet and outlet, the axial flow can realize the axial air inlet and outlet effect, different fan blade systems can meet the requirements of different air conditioner products, and different fan blades are required to be matched with different air channels to realize the flow concentration air outlet.

The traditional mixed flow fan blade comprises a fan blade hub, a fan blade shape and a fan blade outer ring, wherein the fan blade width of the traditional mixed flow fan blade is small, the outlet angle is inclined upwards, the distortion degree of the fan blade shape is large according to the inlet and outlet change of the hub, and the requirements of air inlet from a lower air inlet and air outlet from an upper air outlet are met. As shown in fig. 1 and 2, an outer sealing ring of the mixed flow fan blade is eliminated, the width of the fan blade is increased, the twisting degree is reduced, and a splitter blade can be added between two large blades. The mixed flow fan blade can have two air duct forms, as shown in fig. 6, the air duct with the upper air outlet mode is a drum-shaped air duct form, the mixed flow fan blade is arranged at the position of the lower end of the drum shape, and when the fan blade rotates, the effect that air is sucked from the air inlet at the lower end and is sent upwards to the upper outlet along the side wall of the drum shape for air supply and is discharged can be realized. As shown in figure 4, the lower air-out mode air duct is changed into a throat structure at the upper end on the basis of the upper air-out air duct, the throat position is at the middle position of the maximum diameter at the upper end of the blade width and the minimum diameter to the wheel hub, the effect can be realized because the blade shape of the mixed flow fan blade is similar to the blade shape of the centrifugal fan blade and has the effect of supplying air in the radial direction, when the air duct opening at the upper end is changed into the throat, the pressure of the air supplied to the upper end is increased, the fan blade rotates to have more centrifugal effect, the air is supplied in the radial direction, the air is discharged to the lower air duct opening, and further the middle position of the air duct forms low pressure, the air inlet effect from the upper air inlet can be realized, on the basis, as shown in figure 3, if the half structure of the air duct at the height position of the fan blade at the lower end of the air duct is removed to form a notch, the effect of supplying air to the radial outside air duct can be realized by the, the method can be applied to air-conditioning products to meet special product development requirements.

As shown in fig. 3, the air duct structure of the applied lower air-out optimization scheme is characterized in that the centrifugal fan blade work-applying effect of the mixed-flow fan blade is fully utilized, the original air duct has the effect of sucking air from the upper end of the air duct and discharging air from the lower end of the air duct due to the change of pressure, and the optimization scheme removes half of the circumference of the wall surface of the air duct at the position of the fan blade, so that the fan blade performs centrifugal work in the rotation process, air flow can be blown out from the front diameter, the air volume loss caused by internal pressure can be reduced, and the fan efficiency.

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.

In addition to the foregoing, it should be noted that reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally throughout this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

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 fan assembly, comprising:

an air duct (41);

mixed flow fan portion (30), at least part mixed flow fan portion (30) set up in wind channel (41), mixed flow fan portion (30) include:

a hub (321);

the mixed flow blades (322) are multiple, the mixed flow blades (322) are arranged at intervals along the circumferential direction of the hub (321), and the mixed flow blades (322) are arranged at a distance from the side wall of the air duct (41);

the driving part is connected with the hub (321), and the driving part can drive the hub (321) to drive the mixed flow blades (322) to be rotationally arranged relative to the air duct (41);

wherein, a gap (20) is arranged on the partial side wall of the air duct (41) facing to one side of the mixed flow blade (322).

2. The fan assembly of claim 1, further comprising:

splitter blade (323), splitter blade (323) with wheel hub (321) are connected, splitter blade (323) are a plurality of, and it is adjacent be provided with one between mixed flow blade (322) splitter blade (323), the length along vertical direction of splitter blade (323) is less than the length along vertical direction of mixed flow blade (322).

3. The fan assembly according to claim 1 or 2, wherein the mixed flow fan portion (30) is disposed in a first end of the air duct (41), the first end of the air duct (41) forms an air outlet section, and a second end of the air duct (41) forms an air inlet section.

4. The fan assembly according to claim 3, wherein the air duct (41) comprises:

the mixed flow fan part (30) is arranged in the first component section (411), and the side wall of the first component section (411) is provided with the notch (20);

a second component section (412), a first end of the second component section (412) being connected to a first end of the first component section (411), a second end of the first component section (411) forming an outlet end;

a third component (413), a first end of the third component (413) being connected to a second end of the second component (412), a second end of the third component (413) forming an inlet end, the first end of the second component (412) being arranged with decreasing inner diameter to the second end of the second component (412), and/or the third component (413) being a cylindrical structure with constant diameter.

5. The fan assembly of claim 4, wherein an inner diameter of a first end of the first component section (411) to a second end of the first component section (411) is arranged to gradually decrease.

6. The fan assembly of claim 1, wherein the gap (20) is arcuate, the gap (20) extending circumferentially of the air duct (41).

7. The fan assembly of claim 6 wherein the arc of the gap (20) is 180 °.

8. The fan assembly of claim 4 wherein a projected length of the second component section (412) in a horizontal plane is less than a length between a distal-most end of the outer edge of the mixed flow blade (322) to a minimum inner diameter of the hub (321).

9. A cabinet air conditioner comprising a fan assembly, wherein the fan assembly is as claimed in any one of claims 1 to 8.

10. A cabinet air conditioner according to claim 9, comprising:

a housing having an upper air inlet and a lower air inlet;

the heat exchanger is arranged in the shell, at least one fan assembly is arranged in the shell, the fan assembly can introduce airflow outside the shell through the upper air inlet into the shell to exchange heat with the heat exchanger and then discharge the airflow through the lower air inlet out of the shell, or the fan assembly can introduce airflow outside the shell through the lower air inlet into the shell to exchange heat with the heat exchanger and then discharge the airflow through the upper air inlet out of the shell.

11. The cabinet air conditioner according to claim 10, wherein the heat exchanger separates the housing into an upper cavity and a lower cavity, the fan assembly is disposed in the lower cavity, the upper cavity is provided with a fan portion, the fan portion includes an upper cavity air duct (31), the mixed flow fan portion (30) is disposed in a first end of the upper cavity air duct (31), wherein an inner diameter from the first end of the upper cavity air duct (31) to a second end of the upper cavity air duct (31) is gradually increased and then gradually decreased, the first end of the upper cavity air duct (31) forms an air inlet section, and the second end of the upper cavity air duct (31) forms an air outlet section.

12. The cabinet air conditioner of claim 11, wherein the fan section further comprises:

guide vane (10), guide vane (10) set up in go up the second end in cavity wind channel (31) and with go up cavity wind channel (31) lateral wall and be connected, guide vane (10) are a plurality of, and are a plurality of guide vane (10) are followed go up the circumference interval ground setting in cavity wind channel (31), and are a plurality of guide vane (10) all are located the top of mixed flow fan portion (30).