CN108758837A

CN108758837A - Axial flow blower component and air conditioner

Info

Publication number: CN108758837A
Application number: CN201811022533.4A
Authority: CN
Inventors: 汪先送; 蔡序杰
Original assignee: Midea Group Co Ltd; Guangdong Midea Refrigeration Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2018-08-31
Filing date: 2018-08-31
Publication date: 2018-11-06

Abstract

The present invention discloses a kind of axial flow blower component and air conditioner, wherein axial flow blower component includes chimney fan, and there is the chimney fan front port and rear port, the axial flow blower component to further include：Baffle liner, the baffle liner are installed on the rear port of the chimney fan, diameter 250mm≤d0≤450mm of the chimney fan, the axial width of the baffle liner is m, the rear end radial spacing of 20mm≤m≤80mm, the rear end of the baffle liner and the chimney fan is d1,10mm≤d1≤50mm.Technical solution of the present invention reduces noise when axial flow blower assembly operating.

Description

Axial flow blower component and air conditioner

Technical field

The present invention relates to air-conditioning technical field, more particularly to a kind of axial flow blower component and include the axial flow blower component Air conditioner.

Background technology

There are one axial-flow windwheel or two axial-flow windwheels, then either more than two axis for axial flow blower component internal tool Wind wheel is flowed, for there are two being arranged and for the axial flow blower of more than two axial-flow windwheels, at runtime, air output is larger.

Axial flow blower component is installed in existing part air conditioner indoor unit.Since axial flow blower component is from operation When, unavoidably bring loud noise.

Invention content

The main object of the present invention is to provide a kind of axial flow blower component, it is intended to it is big to solve noise when air conditioner indoor unit operation The problem of.

To achieve the above object, a kind of axial flow blower component proposed by the present invention, including chimney fan and be installed on it is described go out At least one fan blade of air duct, the chimney fan have front port and rear port, which is characterized in that the axial flow blower component is also Including：

Baffle liner, the baffle liner are installed on the rear port of the chimney fan, and the baffle liner is in flaring setting backward；

Diameter 250mm≤d0≤450mm of the chimney fan, the axial width of the baffle liner are m, 20mm≤m≤ The rear end radial spacing of 80mm, the rear end of the baffle liner and the chimney fan is d1,10mm≤d1≤50mm.

Preferably, which is characterized in that 300mm≤d0≤400mm.

Preferably, 30mm≤m≤60mm.

Preferably, 30mm≤d1≤40mm.

Preferably, the internal face of the baffle liner is arranged in the cambered surface of evagination backward.

Preferably, the internal face of the baffle liner and the internal face of the chimney fan are tangent.

Preferably, the curvature of the internal face of the baffle liner is gradually reduced backward.

Preferably, the line segment that the internal face of the baffle liner is intercepted by the plane for being parallel to the axis of the baffle liner, packet Multiple arc sections arranged backward are included, multiple arc sections are sequentially connected.

Preferably, the line segment that the internal face of the baffle liner is intercepted by the plane for being parallel to the axis of the baffle liner, packet Include multiple arc sections and straightway arranged backward, wherein the arc section is in the cambered surface setting of evagination backward, the arc section The rear end of the chimney fan is connected, the arc section is arranged alternately with the straightway.

Preferably, the fan blade quantity in the chimney fan is multiple, and multiple fan blades are between the axial direction of the chimney fan Every arrangement.

Preferably, the fan blade quantity is two, and two fan blades are preceding fan blade and rear fan blade, and the preceding fan blade is by gas Stream blows to the direction of rotation when air outlet, with it is described after fan blade air-flow blows to the air outlet when direction of rotation phase Instead.

Preferably, the rear fan blade is at least partially disposed in the chimney fan, the leading edge of the rear blade and the air inlet The maximum axial distance of mouth is d2, the leaf a height of d3, d of the rear blade₃/3≤d2≤4d₃/3。

The present invention also provides a kind of air conditioner, including axial flow blower component, the axial flow blower component include chimney fan and It is installed at least one fan blade of the chimney fan, the chimney fan has front port and rear port, the axial flow blower component Further include：

Diameter 250mm≤d0≤450mm of the chimney fan, the axial width of the baffle liner are m, 20mm≤m≤ The rear end radial spacing of 80mm, the rear end of the baffle liner and the chimney fan is d1,10mm≤d1≤50mm；

The air conditioner includes air conditioner indoor unit and air-conditioner outdoor unit, and the axial flow blower component places air conditioner indoor unit Interior, the air conditioner indoor unit is floor air conditioner indoor machine or ceiling machine or wall hanging type air conditioner indoor unit；And/or

The axial flow blower component is placed in air-conditioner outdoor unit.

Preferably, the air conditioner indoor unit includes shell and heat exchanger, and the shell has air inlet and air outlet, described Heat exchanger is correspondingly arranged with the air inlet, and the axial flow blower component is mounted between the heat exchanger and the air outlet, The spacing of the rear blade and the heat exchanger is d4,30mm≤d4≤120mm.

Preferably, 60mm≤d4≤80mm.

Preferably, the axial flow blower component is the first wind turbine, is additionally provided with the second wind turbine in the air conditioner, described the One wind turbine and second wind turbine are arranged in the air conditioner indoor unit, 30mm≤d4≤40mm；Alternatively,

First wind turbine and second wind turbine are arranged in air-conditioner outdoor unit, 30mm≤d4≤40mm.

Preferably, second wind turbine is axial flow blower or centrifugal blower or cross flow fan.

Technical solution of the present invention by the way that the chimney fan diameter d0 of axial flow blower component is limited to 250mm≤d0≤450mm, The axial width m of the baffle liner is limited to 20mm≤m≤80mm, the rear end diameter of the rear end of the baffle liner and the chimney fan It is limited to 10mm≤d1≤50mm to spacing d1, to largely reduce making an uproar of being generated when axial flow blower assembly operating Sound.

Description of the drawings

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with The structure shown according to these attached drawings obtains other attached drawings.

Fig. 1 is assembling structure schematic diagram of the axial flow blower component first embodiment of the present invention in air conditioner indoor unit；

Fig. 2 is assembling structure schematic diagram of the axial flow blower component second embodiment of the present invention in air conditioner indoor unit；

Fig. 3 is assembling structure schematic diagram of the axial flow blower component 3rd embodiment of the present invention in air conditioner indoor unit；

Fig. 4 is assembling structure schematic diagram of the axial flow blower component fourth embodiment of the present invention in air conditioner indoor unit；

Fig. 5 is assembling structure schematic diagram of the 5th embodiment of axial flow blower component of the present invention in air conditioner indoor unit；

Fig. 6 is assembling structure schematic diagram of the axial flow blower component sixth embodiment of the present invention in air conditioner indoor unit；

Fig. 7 is assembling structure schematic diagram of the 7th embodiment of axial flow blower component of the present invention in air conditioner indoor unit；

Fig. 8 is assembling structure schematic diagram of the 8th embodiment of axial flow blower component of the present invention in air conditioner indoor unit.

Drawing reference numeral explanation：

Label	Title	Label	Title
				11	Chimney fan	121a	Front motor
122a	Preceding fan blade	123a	Fore-stock
				121b	Motor afterwards	122b	Fan blade afterwards
123b	After-poppet	13	Baffle liner
				21	Shell	21a	Front panel
21b	Backboard	30	Heat exchanger

The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.

Specific implementation mode

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Base Embodiment in the present invention, those of ordinary skill in the art obtained without creative efforts it is all its His embodiment, shall fall within the protection scope of the present invention.

It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention In explaining relative position relation, motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should When particular pose changes, then directionality instruction also correspondingly changes correspondingly.

In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as referring to Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result, Two " feature can explicitly or implicitly include at least one of the features.In addition, the technical solution between each embodiment can To be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical solution occurs Conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not the present invention claims protection model Within enclosing.

The present invention propose in fact a kind of axial flow blower component, include the axial flow blower component air conditioner indoor unit, and Include the air conditioner of the air conditioner indoor unit, which can be specifically floor air conditioner indoor machine or ceiling machine etc.. Following the description is introduced by specific embodiment of floor air conditioner indoor machine.

Referring to Fig. 1, the present invention proposes a kind of axial flow blower component, which includes chimney fan 11, described Chimney fan 11 has front port and rear port, and the axial flow blower component further includes：

Baffle liner 13, the baffle liner 13 are installed on the rear port of the chimney fan 11, and the baffle liner 13 is in expand backward Mouth setting；

The diameter d0,250mm≤d0 of the chimney fan 11≤450mm such as d0=280mm, 300mm, 330mm, 350mm, 380mm, 400mm, 420mm or 440mm.Certainly, preferred d0 ∈ [300mm, 400mm] herein.

Specifically, the axial flow blower component can be single-stage axial wind turbine (only there are one fan blades) and multiple axle Flow fan (is provided with multiple fan blades, such as 2 fan blades, 3 fan blades, even more fan blades, multiple fan blades are along outlet air in chimney fan The axially spaced-apart distribution of cylinder).For multistage axial flow wind turbine, following embodiments will be specifically using counter-rotating fan as specific embodiment It is illustrated.Preceding fan blade and rear fan blade are provided with for counter-rotating fan, in chimney fan, air-flow is blowed to institute by the preceding fan blade State direction of rotation when air outlet, with it is described after fan blade air-flow blows to the air outlet when direction of rotation it is opposite.

The axial flow blower component includes chimney fan 11, baffle liner 13, preceding fan blade 122a, fore-stock 123a, front motor 121a, rear fan blade 122b, after-poppet 123b and rear motor 121b.11 open at both ends of the chimney fan forms front port with after Port.The baffle liner 13 is mounted on the rear port.The connection type of the baffle liner 13 and chimney fan 11 can be welding, It can also make integrated molding, can also be grafting, can also be and form internal thread in chimney fan 11, be formed on baffle liner 13 outer Screw thread, the two are spirally connected adaptation.

The after-poppet 123b can be installed in the chimney fan 11, can also be installed in baffle liner 13.After described Holder 123b can be affixed to chimney fan 11, can also be to be fixed on baffle liner 13.Motor 121b is installed on after described The after-poppet 123b, the rear fan blade 122b are installed on the rear motor 121b.The fore-stock 123a goes out described in being installed on The front port of air duct 11.The front motor 121a is installed on the fore-stock 123a.

The radius of 11 rear port of chimney fan is R1, and the radius of 13 rear port of baffle liner is R2 (it should be noted that baffle liner 13 front end port radius are equal with 11 rear end port radius of chimney fan), d1=R2-R1.The case where for d1=0, that is, lead When stream circle 13 is arranged in straight-tube shape.In addition, the width of baffle liner is not easy excessive, if excessive, baffle liner internal face will be caused Curvature is less than normal, so influences wind effect；The width of baffle liner is not easy to too small, if too small, will lead to baffle liner internal face Curvature it is excessive, that is, flaring amplitude it is bigger than normal, in this way, being also unfavorable for wind-guiding.

In order to test the width value range of baffle liner,

Make following experiment with d1=10mm：

Table A

Make following experiment with d1=50mm：

Table B

Make following experiment with d1=80mm：

Table C

It can be seen from upper Table A to table C when d1 is in 10mm to 50mm, and m is in 20mm to 80mm, overall noise phase To being in reduced levels.

It should be noted that the measurement method of d1 is as follows；1., measure baffle liner two-port radius；2. by the two of measurement It is poor that radius value is made, and takes absolute value to get d1 values.The assay method of m values is as follows:1. taking 5 in the periphery of the air outlet of baffle liner A, 5 points are equidistantly arranged in the circumferential direction of outlet；2. plane where measuring 5 points to baffle liner air inlet respectively is hung down Straight distance；3. taking the average value of above-mentioned 5 vertical ranges to get m values.

To test the influence of d1 axial flow blower component noises, with 11 a diameter of 360mm of chimney fan, 1200 side's air quantity, water conservancy diversion It encloses for 13 width m are 30mm and is tested, experiment is as follows：

Table 1

To test the influence of d1 axial flow blower component noises, with 11 a diameter of 360mm of chimney fan, 1200 side's air quantity, water conservancy diversion It encloses for 13 width m are 60mm and is tested, experiment is as follows：

Table 2

For d1, on the one hand consider that the volume of axial flow blower component manufactures, d1 should not be too large.And if d1 mistakes It is small, it is bad to also result in noise reduction.So d1 is also unsuitable too small.

As shown in Table 1, when d1=0, level of noise is relatively high, reaches 48.7dB, during d1 increases to 40mm by 0, Level of noise is gradually reduced, and when d1 increases to 40mm, level of noise reaches minimum 45.1dB.

And when d1 values continue growing, level of noise increases instead.

Analysis：As d1=0, when air-flow enters guide shell, the turning that outer gas stream enters baffle liner 13 is larger, and anxious (peripheral gas flow turns 90 ° of angles and enters baffle liner 13), it is larger so as to cause flowed energy loss, also just bring loud noise.

When d1 is within the scope of 10mm to 40mm, under the guide functions of baffle liner 13, air-flow flows into baffle liner 13 relatively Gently, the situation of zig zag is also not present when inflow, so, flowed energy loss is smaller, in addition, since air-flow complies with baffle liner The eddy current effect of 13 flowings, generation is also corresponding relatively low.

When d1 continues to increase, the rear port of baffle liner 13 is relatively large, and the front port of baffle liner 13 is relatively small, largely Outer gas stream imports front port from rear port, and front port capacity is limited, to which fraction can not pass through front port in time, from And vortex can be formed between front port and rear port, and then noise is caused to increase significantly again.

As can be seen from Table 1, when d1 is in 30m to 40mm, level of noise is in reduced levels.

Based on identical analysis, d1 levels of noise in 30mm to 50mm are in reduced levels as can be seen from Table 2.So working as When the thickness of baffle liner 13 is within the scope of 30mm to 50mm, for d1 in 30mm to 40mm, axial flow blower component can keep relatively low Noise.

Please referring to Fig. 2 to Fig. 8, in above-described embodiment, the internal face of baffle liner 13 can be flat face flaring setting, It can also be in convex globoidal flaring setting, can also be that can also be that convex globoidal is total with flat face in cancave cambered surface flaring setting With composition.Certainly, for the internal face of flat face flaring setting, air-flow flows to front port by the rear port of baffle liner 13 Afterwards, air-flow will flow in chimney fan 11, however, the internal face of baffle liner 13 and 11 junction turning of chimney fan are larger at this time, gas When stream flows through this position, air-flow velocity loss is more serious, and vortex phenomenon is also more serious (can be between flat face and chimney fan 11 Setting convex globoidal is excessive, to slow down the vortex situation formed when air-flow flows into guide shell).For in cancave cambered surface flaring setting For wall surface, air-flow velocity loses phenomenon bigger, and vortex phenomenon is also more serious.Based on this, the water conservancy diversion in the present embodiment The internal face of circle 13 is arranged in the cambered surface flaring of evagination backward.

In above-described embodiment, in order to keep air-flow flowing more smooth, the internal face of the baffle liner 13 and the chimney fan 11 Internal face it is tangent.

Referring to Fig. 3, in a preferred embodiment, in order to keep noise lower, the curvature of the internal face of the baffle liner 13 It is gradually reduced backward.

For the curvature of the internal face of baffle liner 13 backward constant situation, curvature cannot be excessive, otherwise, once it leads Stream 13 width of circle are larger, and when air-flow flows to front port from the rear port of baffle liner 13, flow direction needs to make larger adjustment, to Air-flow can be caused by larger resistance, and then the noise formed is larger.

In consideration of it, in the present embodiment, setting is gradually reduced backward by setting the curvature of internal face to, to gas When stream flows to front port from the rear port of baffle liner 13, the resistance that air-flow is subject to is relatively small, and noise is also relatively relatively low.

Referring to Fig. 5, unlike a upper embodiment, in a further preferred embodiment, in order to make baffle liner 13 draw When flow guide, air-flow flowing is shallower, and the inner surface of the baffle liner 13 is by being parallel to the plane of the axis of the baffle liner 13 The line segment intercepted, including it is multiple backward arrangement, gradually increased arc section, multiple arc sections are sequentially connected diameter.

In a upper embodiment, the curvature of 13 internal face of baffle liner is gradually reduced backward, in the present embodiment, baffle liner 13 The curvature of internal face is backward in stage reduction.For example, the internal face of baffle liner 13 includes three circular arcs arranged backward Section, the radius of curvature of three arc sections is respectively r1, r2, r3, wherein r1<r2<r3.

Fig. 4 and Fig. 6 are please referred to, equally, in order to make baffle liner 13 when guiding air-flow, air-flow flowing is shallower, described to lead The line segment that the inner surface of stream circle 13 is intercepted by the plane for being parallel to the axis of the baffle liner 13, including multiple circles arranged backward Segmental arc and straightway, the arc section connect the rear end of the chimney fan 11, and the arc section is arranged alternately with the straightway.

For such situation, the quantity of arc section and straightway and it is more than or equal to 3, that is, arc section-straightway-circular arc Section-straightway ..., the internal face of 13 final section of baffle liner can be arranged in above-mentioned straightway, can also be in above-mentioned Arc section setting.Certainly, in order to allow airflow into baffle liner 13 more gently, the internal face of 13 final section of baffle liner is in circular arc Section setting is preferable.

Air-flow has wall attachment effect when entering baffle liner 13, so, fraction can be attached to the inner wall of baffle liner 13 Surface current is dynamic.For the attached wall of air-flow, the attached wall of flat face is best, and cambered surface is relatively poor.

In the case where d1 values are certain, if entire internal face is arranged in arc section, the overall curvature of arc section is not Can be bigger than normal, otherwise, also result in more serious vortex phenomenon；The curvature of arc section can not be less than normal, and otherwise air-flow enters water conservancy diversion The resistance of circle 13 is bigger than normal, and eventually leading to noise also can be bigger than normal.Even if curvature be arranged suitably (it is little also not small, between 2 points Between straight line and semi arch), because air-flow wall attachment effect is poor, finally, the eddy current effect of formation is also undesirable.

In the present embodiment, the internal face of baffle liner 13 is made arc section to be arranged alternately with straightway, is on the one hand solved Above-mentioned angularity issues (no matter curvature is big or small, and noise is all relatively large).On the other hand, air-flow is along 13 inner wall stream of baffle liner When dynamic, since air-flow is to flow to curved section (or flowing to arc section by curved section) by arc section, the curvature of arc section compared with Small, line segment is shorter, and attached wall effect is preferable, and when by its excessive extremely direct election section, the air-flow of attached wall does not have the de- wall of excessive generation and shows As.To which generally speaking, this setup of baffle liner 13 in the present embodiment, the reduction of most noise has been made further Contribution.

Fig. 2 and Fig. 7 are please referred to, in a preferred embodiment, the opening's edge of the leading edge of the rear blade and the air inlet is most Big axial distance is d2, and the leaf high (height of the blade in the axial direction of chimney fan 11) of the rear blade is d3, d₃/3≤d2≤ 4d₃/3。

Here, rear fan blade 122b can also influence wind noise in the position of chimney fan 11, here, in order to verify the effect, Experiment is as follows：

Be 30mm with 11 a diameter of 360mm of chimney fan, 1200 side's air quantity, 13 width of baffle liner, 13 inner wall of baffle liner towards It is in be tested for convex arc is arranged afterwards：

Table 3

From table 3 it can be seen that as d2=0, the noise of axial flow blower component is relatively large, has reached 54.6dB, and with Stretching into for rear fan blade 122b, level of noise continuously decreases.This is because as d2=0, between rear fan blade 122b and baffle liner 13 Gap it is bigger than normal, air-flow generates vortex in this gap, forms windage, causes noise.With stretching into for rear fan blade 122b, rear wind Leaf 122b and the average headway of baffle liner 13 and guide shell inner wall continuously decrease, and to reduce eddy current effect, noise also just drops It is low.As can be seen from the table, when d2 is by d₃/ 4 increase to d₃When/3, lower noise has reached 2.4dB.Reason may be as follows：

Work as d2=d₃When/4, there is 3d₃/ 4 rear fan blade 122b is located in baffle liner 13 (follow-up abbreviation 3d₃/ 4 parts, are located at 1d in chimney fan 11₃/ 4 rear fan blade 122b abbreviations d₃/ 4 parts), due to rear fan blade 122b and baffle liner 13 and rear fan blade Spacing between 122b and chimney fan 11 is different, 3d₃It is higher that the frequency that shakes itself is generated when/4 partial turn, and d₃It produces/4 parts itself Raw frequency deviation of shaking is low, but the two is stationarily connected to together, so, the frequency that finally shakes depends on 3d₃/ 4 parts, so as to cause Noise is relatively large.Work as d2=d₃When/3, there is 2d₃/ 3 rear fan blade 122b is located in baffle liner 13, d₃/ 3 parts and 2d₃/ 3 The frequency that shakes divided is different, but due to d₃/ 3 parts already take up rear fan blade 122b major parts, although 2d₃/ 3 parts occupy entirely Fan blade greater portion, but the part is not enough to left and right d₃The frequency that shakes of/3 parts, after the two links together, the frequency that shakes depends on d₃/ 3 parts, to which noise is lower.

Reach 4d in d3₃After/3, it is found that lower noise amplitude is less than normal, rear fan blade 122b continues to stretch into the meaning in chimney fan 11 Justice is less than it is longer to also result in chimney fan 11 instead, increases manufacturing cost.

In consideration of it, d2 is in d₃/ 3 to 4d₃/ 3 preferably.

It please refers to Fig.1 to Fig. 8, the present invention also provides a kind of air conditioner indoor unit being equipped with above-mentioned axial flow blower component, should There is indoor unit shell 21, the shell 21 to have and have air outlet on front panel 21a and backboard 21b, the front panel 21a, Air outlet is equipped with outlet frame, and there is air inlet, air inlet to be equipped with air-inlet grille, air-inlet grille inside on the backboard 21b It is provided with filter screen, heat exchanger 30 is mounted in shell 21, and between air inlet and air outlet.In general, heat exchanger 30 can To be installed on backboard 21b, it can also also be not excluded for other mounting means certainly mounted on side plate.Axial flow blower component is mounted on At air outlet, when air conditioner indoor unit executes refrigerating function, axial flow blower assembly operating, axial flow blower component rear forms negative Pressure, extraneous air after air inlet passes through heat exchanger 30, are blowed to by axial flow blower component in air conditioning chamber under the action of the negative pressure The front of machine.

Referring to Fig. 8, on the basis of the above embodiments, in order to reduce noise when operation of air conditioner, the air-ducting ring The spacing of rear end and the heat exchanger 30 is d4,20mm≤d4≤120mm.

Table 4

For the baffle liner 13 of flaring setting, d4 is bigger, and axial flow blower component is lower with air quantity noise, when d4 is more than After 120mm, it is basically unchanged with noise under air quantity, with for noise angle, d4 takes 60mm optimal, but when d4 is too big, meeting The thickness of complete machine is influenced, and when d4 is more than 80mm, is reduced with air quantity lower noise amplitude, so, for comprehensive, d4 is in 60mm It is preferable to 80mm.

Above-described embodiment is for single bipolar axial flow blower (counter-rotating fan).

In addition to this, by test, when in air conditioner in addition to be provided with single bipolar axial flow blower (counter-rotating fan, herein Be named as the first wind turbine) outside, when being additionally provided with other wind turbine (being named as the second wind turbine), for example, be provided with axis stream, through-flow or from When heart wind turbine, the best value of d4 changes.Certainly, the first wind turbine and the second wind turbine can be arranged at air conditioner indoor unit In, it can also be arranged in air-conditioner outdoor unit.

For the relationship of noise and d4 caused by the more than two wind turbines of test, test following (by taking indoor unit as an example)：

Table 5

As can be seen from Table 5, when d4 is in 60mm to 80mm, the noise of air conditioner indoor unit is relatively high, instead when d4 exists When 30mm to 40mm, the noise of air conditioner indoor unit is in floor level, and especially as d4=30mm, level of noise is in minimum shape State.It is as follows for the assay method of d4：1., take the fin of heat exchanger near baffle liner, make one be parallel to rear fan blade after The first plane (namely the plane formed when rear fan blade rotation) of edge；2. the trailing edge of fan blade takes a point after each, point The point is not surveyed to the spacing between above-mentioned first plane；3., the distance values of above-mentioned multiple measurement are averaged to get d4 values.

The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every at this Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly In the scope of patent protection that other related technical areas are included in the present invention.

Claims

1. a kind of axial flow blower component, including chimney fan and at least one fan blade for being installed on the chimney fan, the chimney fan With front port and rear port, which is characterized in that the axial flow blower component further includes：

The axial width of diameter 250mm≤d0≤450mm of the chimney fan, the baffle liner are m, 20mm≤m≤80mm, institute The rear end radial spacing of the rear end for stating baffle liner and the chimney fan is d1,10mm≤d1≤50mm.

2. axial flow blower component as described in claim 1, which is characterized in that 300mm≤d0≤400mm.

3. axial flow blower component as described in claim 1, which is characterized in that 30mm≤m≤60mm.

4. axial flow blower component as described in claim 1, which is characterized in that 30mm≤d1≤40mm.

5. axial flow blower component as described in claim 1, which is characterized in that the internal face of the baffle liner is in evagination backward Cambered surface is arranged.

6. axial flow blower component as claimed in claim 5, which is characterized in that the internal face of the baffle liner and the chimney fan Internal face it is tangent.

7. axial flow blower component as claimed in claim 5, which is characterized in that the curvature of the internal face of the baffle liner backward by It is decrescence small.

8. axial flow blower component as claimed in claim 5, which is characterized in that the internal face of the baffle liner is described by being parallel to The line segment that the plane of the axis of baffle liner intercepts, including multiple arc sections arranged backward, multiple arc sections are sequentially connected.

9. axial flow blower component as described in claim 1, which is characterized in that the internal face of the baffle liner is described by being parallel to The line segment that the plane of the axis of baffle liner intercepts, including multiple arc sections and straightway arranged backward, wherein the arc section It is arranged in the cambered surface of evagination backward, the arc section connects the rear end of the chimney fan, and the arc section is handed over the straightway For arrangement.

10. the axial flow blower component as described in claim 1 to 9 any one, which is characterized in that the fan blade in the chimney fan Quantity is multiple, and multiple fan blades are arranged along the axially spaced-apart of the chimney fan.

11. axial flow blower component as claimed in claim 10, which is characterized in that the fan blade quantity is two, described in two Fan blade is preceding fan blade and rear fan blade, and air-flow is blowed to the direction of rotation when air outlet by the preceding fan blade, with the rear fan blade Direction of rotation when air-flow to be blowed to the air outlet is opposite.

12. axial flow blower component as claimed in claim 11, which is characterized in that after described fan blade be at least partially disposed at it is described go out In air duct, the maximum axial distance of the leading edge of the rear blade and the air inlet is d2, a height of d3 of leaf of the rear blade, d₃/3≤d2≤4d₃/3。

13. a kind of air conditioner, which is characterized in that include the axial flow blower component as described in claim 1 to 12 any one, institute It includes air conditioner indoor unit and air-conditioner outdoor unit to state air conditioner, and the axial flow blower component is placed in air conditioner indoor unit, the sky It is floor air conditioner indoor machine or ceiling machine or wall hanging type air conditioner indoor unit to adjust indoor unit；And/or

The axial flow blower component is placed in air-conditioner outdoor unit.

14. air conditioner as claimed in claim 13, which is characterized in that the air conditioner indoor unit includes shell and heat exchanger, institute Stating shell, there is air inlet and air outlet, the heat exchanger to be correspondingly arranged with the air inlet, the axial flow blower component installation Between the heat exchanger and the air outlet, the spacing of the rear blade and the heat exchanger is d4,30mm≤d4≤ 120mm。

15. air conditioner as claimed in claim 14, which is characterized in that 60mm≤d4≤80mm.

16. air conditioner as claimed in claim 14, which is characterized in that the axial flow blower component is the first wind turbine, the sky It adjusts in device and is additionally provided with the second wind turbine, first wind turbine and second wind turbine are arranged in the air conditioner indoor unit, 30mm≤d4≤40mm；Alternatively,

17. air conditioner as claimed in claim 16, which is characterized in that second wind turbine be axial flow blower or centrifugal blower or Cross flow fan.