CN108443978A - Air-conditioning equipment - Google Patents

Abstract

The present invention provides a kind of air-conditioning equipments, including：Shell which is provided with exhaust outlet and return air inlet；Spiral case air duct is located in shell, and is connected to exhaust outlet and return air inlet, wherein spiral case air duct includes volute section and volute tongue portion, and volute section has against edge, against the interior end in contact of edge and exhaust outlet；Wind wheel, for tubular wine wheel, wind wheel is located in spiral case air duct, the inner surface of volute section intersects the molded line for being formed by that intersecting lens is volute section with perpendicular to the middle section of wind wheel axis, molded line has intersection point with against edge, meet 1.8≤(F1+F2)/D≤2.5, and 3.5≤L/D≤4.6 from the axial length L of the hole wall length F2 of line length F1, exhaust outlet, the diameter D of wind wheel and wind wheel with wind wheel apart from nearest point to intersection point on molded line.The air-conditioning equipment that this programme provides, it can be ensured that realize that the air-flow streamline in spiral case air duct is smooth, smooth, and then achieve the purpose that reduce pneumatic noise, reduce drag losses, take into account the noise reduction and efficiency for promoting product.

Description

Air-conditioning equipment

Technical field

The present invention relates to field of air conditioning, in particular to a kind of air-conditioning equipment.

Background technology

Air circulation is driven equipped with indoor wind wheel in existing such as window air conditioner, mobile air conditioner air-conditioning equipment, in reality During the existing present invention, inventor has found the prior art, and there are the following problems：There is interior at runtime in existing air-conditioning equipment The problems such as crosswind sound is unstable, noise is big, causes product usage experience bad, and leads to that air-conditioning equipment entirety efficiency is relatively low, energy consumption It is high.

Invention content

At least one in order to solve the above-mentioned technical problem, the purpose of the present invention is to provide a kind of air-conditioning equipments.

To achieve the above object, the embodiment provides a kind of air-conditioning equipments, including：Shell, the row of which is provided with Air port and return air inlet；Spiral case air duct, is located in the shell, and is connected to the exhaust outlet and the return air inlet, wherein described Spiral case air duct includes volute section and volute tongue portion, and the volute section has against edge, the inner end against edge and the exhaust outlet Contact；Wind wheel is tubular wine wheel, and the wind wheel is located in the spiral case air duct, the inner surface of the volute section and perpendicular to institute The middle section intersection for stating wind wheel axis is formed by the molded line that intersecting lens is the volute section, and the molded line has with described against edge There is an intersection point, from the hole wall of line length F1, the exhaust outlet with the wind wheel apart from nearest point to the intersection point on the molded line The axial length L of length F2, the diameter D of the wind wheel and the wind wheel meet 1.8≤(F1+F2)/D≤2.5, and 3.5≤L/D ≤4.6。

The draw ratio of the air-conditioning equipment that the above embodiment of the present invention provides, wind wheel meets：3.5≤L/D≤4.6, and its On the molded line of volute section from wind wheel apart from nearest point to molded line and volute section against molded line length F1, the exhaust outlet of edge intersection point Hole wall length F2 and the diameter D of wind wheel between relationship be 1.8≤(F1+F2)/D≤2.5, may insure in volute section in this way Main water diversion part length and wind wheel size coordinate, to ensure to realize that the air-flow streamline in spiral case air duct is smooth, smooth, in turn Achieve the purpose that reduce pneumatic noise, reduce windage loss, takes into account the noise reduction and efficiency for promoting product.

In addition, since tubular wine wheel requires small to radial dimension of, the space of heat exchanger will not be occupied, can be conducive to reduce set The volume of standby interior side section, and tubular wine wheel has the advantages that the uniform low noise of air-supply, the outlet air that can promote product are uniform Property and mildness, while ensuring to realize that the air-flow streamline in spiral case air duct is smooth, smooth, reaching reduces pneumatic noise, reduces gas The purpose for flowing loss takes into account the noise reduction and efficiency for promoting product.

More specifically, when (F1+F2)/D is less than 1.8, in contrast, wind wheel is bigger than normal, volute section fair current effect and wind The practical wind-guiding efficiency of wheel is relatively low, the wind-guiding ability of wind wheel compared with volute section fair current effect and the practical wind-guiding efficiency of wind wheel With there are relatively large deviation, to obtain mute comfort, needing to greatly reduce wind speed round and wind pressure, this needs to pay in relationship Go out high heat exchange efficiency cost, and can cause wind wheel that can not realize that noise reduction optimizes and noise reduction most efficiently turns Work in fast frequency range so that it adjusts the noise reduction that the parameters such as wind pressure and wind speed are obtained and is not obvious, and it is big to work as (F1+F2)/D When 2.5, wind wheel is less than normal, and the windage in volute section is bigger than normal, and equipment resistance loss can be caused to increase in this way, and turbulent flow noise increases sharply, Equipment usage experience is caused to decline, efficiency reduces；And in the present solution, control F1, F2 and D meet 1.8≤(F1+F2)/D≤ 2.5, and 3.5≤L/D≤4.6, wherein when the draw ratio L/D of wind wheel is more than 4.6, it is unfavorable for reducing the width dimensions of heat exchanger, Complete machine is allowed to seem heavy, and when the draw ratio L/D of wind wheel is less than 3.5, the too short area for being unfavorable for increasing one-row heat exchanger of wind wheel, It is unfavorable for the efficiency of raising complete machine, and design can make the main water diversion part in volute section be kept for one fit with wind wheel size in this way Suitable rapport is meeting wind speed and wind pressure simultaneously, and wind wheel can be optimized realizing noise reduction and noise reduction highest Work in the rotating speed frequency range of effect, and guarantee volute section windage is small, fair current excellent effect, it is ensured that realize the air-flow stream in spiral case air duct Line is smooth, smooth, achievees the purpose that reduce pneumatic noise, reduces drag losses, takes into account the noise reduction and efficiency for promoting product.

In addition, the air-conditioning equipment in above-described embodiment provided by the invention can also have following additional technical feature：

In above-mentioned technical proposal, the D meets：88mm≤D≤105mm.

In the present solution, be based on above-mentioned 1.8≤(F1+F2)/D≤2.5 and 3.5≤L/D≤4.6, setting 88mm≤D≤ 105mm, can meet the air quantity requirement of wind wheel in this way, while not will increase air-supply noise again, and be designed conducive to package size, real Now reduce canyon on the inside of volume, and if D be less than 88mm when, there is a problem of that wind wheel is too small, be unfavorable for improve air quantity, and hold Easily increase indoor Lateral supply noise, and if D is easy to occupy the space of heat exchanger, is unfavorable for reducing in canyon when being more than 105mm The volume of side section.

It is highly preferred that the D meets：90mm≤D≤100mm.

In any of the above-described technical solution, the molded line is located at the wind wheel between nearest point and the intersection point Part includes curved section and straightway, the curved section and straightway along the molded line from the wind wheel apart from nearest point It arranges successively to the direction of the intersection point.

In the present solution, design volute section molded line is located at the part packet between nearest point and the intersection point with wind wheel Curved section and straightway are included, in identical load, air quantity can be promoted, and can be gently oriented to air-flow using curved section, And resistance and pressure drop of the curved section when playing guiding role are small, can avoid turbulent flow noise, it can be in curved section using straightway Downstream portion further makes air-flow in order, keeps outlet air more smooth, meanwhile, the combining form of curved section and straightway can be conducive to limit Air-flow pressure drop processed, inhibits the occurrence and development of turbulent flow, to improve noise level.

In above-mentioned technical proposal, one end of the straightway is engaged with one end of the curved section, the straightway it is another The endpoint of one end is the intersection point, and the endpoint of the other end of the curved section is described, apart from nearest point, to make with the wind wheel The line length S2 of F1, the line length S1 of the curved section and the straightway meet：F1=S1+S2.

In the present solution, design F1=S1+S2, can be further simplified the structure type of volute section, facilitate product in this way Depanning is manufactured, and the structure can be conducive to limitation air-flow pressure drop, inhibit the occurrence and development of turbulent flow, to improve noise level.

Preferably, the junction of the curved section and the straightway seamlessly transits, in this way can be conducive to air-flow from Curve section surface is flowed to straight line section surface gentle transition, keeps the streamline of spiral case air duct interior air-flow smooth, is avoided since curvature is prominent Change causes turbulent flow occurrence and development, improves noise level.

In above-mentioned technical proposal, the straightway is angled straight lines section, and the volute section is made to be limited with the volute tongue portion The height of the opening gone out is in the variation tendency become larger.

In the present solution, setting straightway is angled straight lines section so that along fluid flow direction, volute section and volute tongue The open height that portion is limited gradually increases, and is conducive to air-flow and keeps smooth-going, keeps the streamline of spiral case air duct interior air-flow smooth, avoid Since curvature mutation causes turbulent flow occurrence and development, improve noise level.

In any of the above-described technical solution, the area A of the return air inlet meets with the area B of the exhaust outlet：2.5≤A/B ≤3.5。

In the present solution, based on above-mentioned 1.8≤(F1+F2)/D≤2.5 and 3.5≤L/D≤4.6, return air inlet is designed The area B of area A and exhaust outlet meets：2.5≤A/B≤3.5 may insure the main water diversion part length in volute section in this way Coordinate with wind wheel size, and ensures wind wheel on air quantity in the driving force of air-flow, the spiral case air duct influenced by return air inlet and exhaust outlet And the main water diversion part flow resistance in volute section is coordinated, to ensure to realize that the air-flow streamline in spiral case air duct is smooth, smooth, in turn Achieve the purpose that reduce pneumatic noise, reduce drag losses, takes into account the noise reduction and efficiency for promoting product.

In any of the above-described technical solution, the air-conditioning equipment further includes：First grid is set at the return air inlet；And/or Second grid is set at the exhaust outlet.

In the present solution, the first grid is arranged at return air inlet, the first grid can play blocking and protection at return air inlet Effect, prevents foreign matter from entering return air inlet, and the first grid can carry out wind cutting fair current when return air inlet is entered the wind, and be lifted into air-flow Ride comfort strengthens noise reduction；Second grid is set at exhaust outlet, and the second grid can play blocking and protection at exhaust outlet Effect prevents foreign matter from entering exhaust outlet, and the second grid can carry out wind cutting fair current in exhaust outlet air draft, promotes discharge air-flow Ride comfort strengthens noise reduction, and can promote exhaust ports flow velocity, extends air supplying distance.

More specifically, the first grid is strip grid or is the porous hardened of the forms such as ellipticity, cellular, radial Structure, the second grid be strip grid or be the forms such as ellipticity, cellular, radial perforated plate construction, certainly, the second grid It is alternatively louvered grid, or is a whole flat shape or the wind deflector structure of arcuation.

In any of the above-described technical solution, the direction of the exhaust outlet meets with the angle theta of horizontal direction：0 °≤θ≤35 °, And/or the direction of the return air inlet and the angle β of horizontal direction meet：0°≤β≤15°.

In the present solution, the direction of design exhaust outlet meets with the angle theta of horizontal direction：0 °≤θ≤35 °, which goes out Wind energy is conducive to wind and sends out at a distance forward while Wind Volume and low noise is effectively ensured, and effectively meets relaxing for room Adaptive requirement, and complete machine can be allowed to seem thinner more attractive；The angle β of the direction and horizontal direction that design return air inlet meets： 0 °≤β≤15 °, which can allow complete machine to seem thinner, more attractive, and be conducive to expand return air range, be conducive to promote return air Amount, and will not occur because of the problem of return air angle tilts very much and heat exchanger condensed water is caused to be revealed from return air inlet.

In any of the above-described technical solution, the air-conditioning equipment is window air conditioner or mobile air conditioner, and the wind wheel is the window The indoor wind wheel of formula air-conditioning or mobile air conditioner, the spiral case air duct are the indoor spiral case of the window air conditioner or mobile air conditioner Air duct.

The additional aspect and advantage of the present invention will become apparent in following description section, or practice through the invention Recognize.

Description of the drawings

The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment Obviously and it is readily appreciated that, wherein：

Fig. 1 is the dimensional structure diagram of air-conditioning equipment described in one embodiment of the invention；

Fig. 2 is the broken section structural schematic diagram of air-conditioning equipment described in one embodiment of the invention；

Fig. 3 is the dimensional structure diagram of air-conditioning equipment described in one embodiment of the invention；

Fig. 4 is the broken section structural schematic diagram of air-conditioning equipment described in one embodiment of the invention；

Fig. 5 is the dimensional structure diagram of air-conditioning equipment described in one embodiment of the invention；

Fig. 6 is the broken section structural schematic diagram of air-conditioning equipment described in one embodiment of the invention；

Fig. 7 is the dimensional structure diagram of air-conditioning equipment described in one embodiment of the invention；

Fig. 8 is the broken section structural schematic diagram of air-conditioning equipment described in one embodiment of the invention；

Fig. 9 is the broken section structural schematic diagram of air-conditioning equipment described in one embodiment of the invention；

Figure 10 is the partial structurtes of air-conditioning equipment described in one embodiment of the invention in the plane perpendicular to its wind wheel axis Interior projection view；

Figure 11 is the partial enlargement structural representation of air-conditioning equipment described in one embodiment of the invention；

Figure 12 is the partial enlargement structural representation of air-conditioning equipment described in one embodiment of the invention；

Figure 13 is the structural schematic diagram of shell described in one embodiment of the invention；

Figure 14 is the structural schematic diagram of wind wheel described in one embodiment of the invention；

Figure 15 is the exploded structural schematic diagram of air-conditioning equipment described in one embodiment of the invention.

Wherein, the reference numeral in Fig. 1 to Figure 15 and the correspondence between component names are：

10 shells, 11 exhaust outlets, 111 hole walls, 12 return air inlets, 20 volute sections, 21 against edge, 22 molded line, 221 curved sections, 222 straightways, 30 volute tongue portions, 40 wind wheels, 41 axle sleeves, 42 connecting shafts, 50 heat exchangers, 51 heat exchanger tubes, 60 motors, outside Room 70 side Point, 80 grooves, 91 first grids, 92 second grids.

Specific implementation mode

To better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real Mode is applied the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application Feature in example and embodiment can be combined with each other.

Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also To be implemented different from other modes described here using other, therefore, protection scope of the present invention is not by described below Specific embodiment limitation.

The air-conditioning equipment that the first embodiment of invention provides, air-conditioning equipment can be integral type air-conditioning (such as window air conditioner or Mobile air conditioner), integrated air conditioner includes indoor side section and outdoor side section 70, and certainly, air-conditioning equipment is alternatively the room of air-conditioning Interior machine is specifically illustrated by taking window air conditioner as an example, as shown in Fig. 2, Fig. 4, Fig. 6, Fig. 8, Fig. 9 and Figure 10, window air conditioner packet It includes：Shell 10, spiral case air duct and wind wheel 40.

Specifically, shell 10 is equipped with exhaust outlet 11 and return air inlet 12；Spiral case air duct is located in shell 10, and with exhaust outlet 11 And return air inlet 12 is connected to, wherein spiral case air duct includes volute section 20 and volute tongue portion 30, and volute section 20 has against edge 21, against The interior end in contact of edge 21 and exhaust outlet 11；Wind wheel 40 is tubular wine wheel, which is located in spiral case air duct, volute section 20 it is interior Surface intersect with perpendicular to the middle section of 40 axis of wind wheel be formed by intersecting lens be volute section 20 molded line 22, molded line 22 with support There is intersection point Q by edge 21, from the hole wall of line length F1, exhaust outlet 11 with wind wheel 40 apart from nearest point K to intersection point Q on molded line 22 The axial length L of 111 length F2, the diameter D of wind wheel 40 and wind wheel 40 meet 1.8≤(F1+F2)/D≤2.5, and 3.5≤L/D ≤4.6。

It is worth noting that 111 length of hole wall about exhaust outlet 11, it can be understood as from the hole wall 111 of exhaust outlet 11 With the axial length against 21 contact point of edge to the outer end point of 11 hole wall 111 of exhaust outlet, when shell 10 is located at 11 end of exhaust outlet When between 11 hole wall 111 of the surface at position and exhaust outlet by rounded corner transition that radius is R, as shown in figure 12, for example, fixed An endpoint of adopted F2 be exhaust outlet 11 hole wall 111 and the rounded corner cambered surface point of contact P, as shown in Figure 10, F2 another Endpoint Q can also make identical understanding, certainly, can be by F2 the case where at 11 end position of exhaust outlet without rounding corner structure Endpoint be defined as the binding site of exhaust outlet 11 hole wall 111 and 10 outer surface of shell.In addition, about on molded line 22 with wind wheel 40 away from From nearest point, also as volute section 20 and wind wheel 40 refers to 40 axis of wind wheel as shown in Figure 10 and Figure 11 apart from nearest point Line is that bowlder is made in the center of circle, is formed by point of contact K when tangent with molded line 22 with the tangent smallest circumference w of molded line 22, F1 can be further It is interpreted as 22 line length of molded line from K points to Q points.

The draw ratio of the air-conditioning equipment that the above embodiment of the present invention provides, wind wheel 40 meets：3.5≤L/D≤4.6, and On the molded line 22 of its volute section 20 from wind wheel 40 apart from nearest point K to molded line 22 and volute section 20 against 21 intersection point Q's of edge 22 length F1 of molded line, exhaust outlet 11 hole wall 111 length F2 and the diameter D of wind wheel 40 between relationship be 1.8≤(F1+F2)/D ≤ 2.5, it may insure that the main water diversion part length in volute section 20 is coordinated with 40 size of wind wheel in this way, to ensure to realize spiral case Air-flow streamline in air duct is smooth, smooth, and then achievees the purpose that reduce pneumatic noise, reduces drag losses, takes into account promotion production The noise reduction and efficiency of product.

More specifically, when (F1+F2)/D is less than 1.8, in contrast, wind wheel 40 is bigger than normal, 20 fair current effect of volute section And the practical wind-guiding efficiency of wind wheel 40 is relatively low, the wind-guiding ability of wind wheel 40 is compared with 20 fair current effect of volute section and the reality of wind wheel 40 Wind-guiding efficiency there are relatively large deviation, to obtain mute comfort, needs to greatly reduce 40 rotating speed of wind wheel on matching relationship And wind pressure, this needs pay highly heat exchange efficiency cost, and can cause wind wheel 40 can not realize noise reduction optimize and Work in the most efficient rotating speed frequency range of noise reduction so that adjust the noise reduction that the parameters such as wind pressure and wind speed are obtained and unknown When showing, and working as (F1+F2)/D more than 2.5, wind wheel 40 is less than normal, and the windage in volute section 20 is bigger than normal, can lead to air conditioning air flow in this way Loss increases, and turbulent flow noise increases sharply, and causes equipment usage experience to decline, efficiency reduces；And in the present solution, control F1, F2 and D Meet 1.8≤(F1+F2)/D≤2.5, and 3.5≤L/D≤4.6, wherein unfavorable when the draw ratio L/D of wind wheel 40 is more than 4.6 In the width dimensions for reducing heat exchanger 50, complete machine is allowed to seem heavy, and when the draw ratio L/D of wind wheel 40 is less than 3.5, wind wheel 40 is too The short area for being unfavorable for increasing one-row heat exchanger 50 is unfavorable for improving the efficiency of complete machine, and design can make in volute section 20 in this way Main water diversion part and 40 size of wind wheel keep a suitable rapport, meeting wind speed and wind pressure simultaneously, wind wheel 40 It can work in the most efficient rotating speed frequency range of noise reduction realizing that noise reduction is optimized, and ensure 20 windage of volute section Small, fair current excellent effect, it is ensured that realize that the air-flow streamline in spiral case air duct is smooth, smooth, reaching reduces pneumatic noise, reduces gas The purpose for flowing loss takes into account the noise reduction and efficiency for promoting product.

In the second embodiment of air-conditioning equipment of the present invention, as shown in figure 14, in addition to the spy of above-mentioned first embodiment Other than sign, the diameter D that wind wheel 40 is further arranged meets：88mm≤D≤105mm, wherein by being based on above-mentioned 1.8≤(F1 + F2)/D≤2.5 and 3.5≤L/D≤4.6,88mm≤D≤105mm is set, the air quantity requirement of wind wheel 40 can be met in this way, together When not will increase air-supply noise again, and designed conducive to package size, the volume reduced on the inside of canyon realized, and if D is less than When 88mm, there is a problem of that wind wheel 40 is too small, is unfavorable for improving air quantity, and indoor Lateral supply noise easy to increase, and if D is more than It when 105mm, is easy to occupy the space of heat exchanger 50, is unfavorable for reducing the volume of canyon inboard portion.

It is highly preferred that the D meets：90mm≤D≤100mm, in conjunction with the spiral case air channel structure in above-mentioned first embodiment It can get more excellent muting function.

In the 3rd embodiment of air-conditioning equipment of the present invention, as shown in Figure 14 and Figure 15, in addition to above-mentioned arbitrary implementation Other than the feature of example, wind wheel 40 is tubular wine wheel, and tubular wine wheel 40 is radial dimension of to be required small, will not occupy the sky of heat exchanger 50 Between, it can be conducive to reduce the volume of canyon inboard portion, and tubular wine wheel has the advantages that the uniform low noise of air-supply, can be promoted The outlet air uniformity and mildness of product, while ensuring to realize that the air-flow streamline in spiral case air duct is smooth, smooth, reach reduction gas The purpose for flowing noise, reducing drag losses takes into account the noise reduction and efficiency for promoting product.

More specifically, as shown in Figure 14 and Figure 15, setting axle sleeve 41 in one end of tubular wine wheel, the other end of tubular wine wheel is set There are connecting shaft 42, the output shaft of a motor 60 that can be connect with the axis hole on axle sleeve 41, the connecting shaft 42 of tubular wine wheel can be installed On bearing block, to drive tubular wine wheel to rotate using motor 60.

In the fourth embodiment of air-conditioning equipment of the present invention, as shown in Figure 10, in addition to the spy of above-mentioned any embodiment Other than sign, it includes curved section 221 and straightway that molded line 22, which is located at part of the wind wheel 40 between nearest point K and intersection point Q, 222, curved section 221 and straightway 222 are arranged apart from nearest point K to the direction of intersection point Q along molded line 22 from wind wheel 40 successively Cloth can promote air quantity, and can be gently oriented to air-flow using curved section 221, and curve in this way, in identical load Resistance and pressure drop of the section 221 when playing guiding role are small, can avoid turbulent flow noise, can be in curved section 221 using straightway 222 Downstream portion air-flow is further made in order, keep outlet air more smooth, meanwhile, the combining form of curved section 221 and straightway 222 It can be conducive to limitation air-flow pressure drop, inhibit the occurrence and development of turbulent flow, to improve noise level.

Further, as shown in Figure 10, one end of straightway 222 is engaged with one end of curved section 221, straightway 222 The endpoint of the other end is intersection point Q, and the endpoint of the other end of curved section 221 is to make F1, curve apart from nearest point K with wind wheel 40 The line length S1 of section 221 and the line length S2 of straightway 222 meet：F1=S1+S2 can be further simplified the knot of volute section 20 in this way Configuration formula facilitates product manufacturing depanning, and the structure can be conducive to limitation air-flow pressure drop, inhibit the occurrence and development of turbulent flow, to improve Noise level.

Preferably, as shown in Figure 10, curved section 221 and the junction of straightway 222 seamlessly transit, and can be conducive to gas in this way Stream keeps the streamline of spiral case air duct interior air-flow smooth, avoids from 221 surface of curved section to 222 surface gentle transition flowing of straightway Since curvature mutation causes turbulent flow occurrence and development, improve noise level.

It is highly preferred that as shown in Figure 10, straightway 222 is angled straight lines section, and volute section 20 is made to be limited with volute tongue portion 30 The height of the opening gone out is in the variation tendency become larger, wherein by the way that straightway 222 is arranged as angled straight lines section so that Along fluid flow direction, the open height that volute section 20 and volute tongue portion 30 are limited gradually increases, can be with exit pressure drop, profit It keeps smoothing out in air-flow, keeps the streamline of spiral case air duct interior air-flow smooth, avoid causing turbulent flow occurrence and development due to curvature mutation, Improve noise level.

More specifically, as shown in Figure 10, straightway 222 is inclined angled straight lines section relative to horizontal direction, volute tongue portion The molded line that the position of the straightway 222 is corresponded on 30 is horizontal line section.

In the 5th embodiment of air-conditioning equipment of the present invention, it is preferable that in addition to above-mentioned any embodiment feature with Outside, the area B of the area A and exhaust outlet 11 that further limit return air inlet 12 meet：2.5≤A/B≤3.5, wherein by being based on The area B of the area A and exhaust outlet 11 of return air inlet 12 are designed in above-mentioned 1.8≤(F1+F2)/D≤2.5 and 3.5≤L/D≤4.6 Meet：2.5≤A/B≤3.5 may insure that the main water diversion part length in volute section 20 is coordinated with 40 size of wind wheel in this way, And ensure air quantity and volute section 20 in spiral case air duct that wind wheel 40 is influenced on the driving force of air-flow, by return air inlet 12 and exhaust outlet 11 On main water diversion part flow resistance coordinate, to ensure to realize that the air-flow streamline in spiral case air duct is smooth, smooth, and then reach reduction Pneumatic noise, the purpose for reducing windage loss, take into account the noise reduction and efficiency for promoting product.

About above-described embodiment, it is to be understood that as shown in Fig. 2, it is preferred that return air inlet 12 and exhaust outlet 11 are substantially in Rectangle is rectangular, when return air inlet 12 and exhaust outlet 11 are of same size, the height Y2 of return air inlet 12 and the height Y1 of exhaust outlet 11 The ratio between Y2/Y1 be equal to the height Y2 and exhaust outlet 11 of the ratio between 12 area A of return air inlet and 11 area B of exhaust outlet namely return air inlet 12 Height Y1 equally meet：2.5≤return air open height Y2/ air draft open heights Y1≤3.5.

In the sixth embodiment of air-conditioning equipment of the present invention, as shown in Figure 1, air-conditioning equipment further includes the first grid 91, which is set at return air inlet 12, and the first grid 91 can play blocking and protective action at return air inlet 12, prevent Foreign matter enters return air inlet 12, and the first grid 91 can carry out wind cutting fair current when return air inlet 12 is entered the wind, and is lifted into the flat of air-flow It is pliable, strengthen noise reduction.More specifically, the first grid 91 is other than being strip grid, and can also be ellipticity, it is cellular, Radial perforated plate construction.

It is worth noting that when calculating the area A of return air inlet 12, the area A of return air inlet 12 includes return air inlet 12 by the The area of one grid, 91 shield portions.

In the 7th embodiment of air-conditioning equipment of the present invention, as shown in figures 1 and 3, air-conditioning equipment further includes second Grid 92, second grid 92 are set at exhaust outlet 11, and the second grid 92 can play blocking and protective action at exhaust outlet 11, It prevents foreign matter from entering exhaust outlet 11, and the second grid 92 can carry out wind cutting fair current in 11 air draft of exhaust outlet, promotes discharge air-flow Ride comfort, strengthen noise reduction, and exhaust ports flow velocity can be promoted, extend air supplying distance.More specifically, the second grid 92 Can also be the wind deflector structure of louvered grid or a whole flat shape or arcuation other than being strip grid.

It is worth noting that when calculating the area B of exhaust outlet 11, the area B of exhaust outlet 11 includes exhaust outlet 11 by the The area of two grids, 92 shield portions.

In the 8th embodiment of air-conditioning equipment of the present invention, as depicted in figs. 1 and 2, in addition to above-mentioned first to the 7th Other than the feature of embodiment, the angle theta towards m and horizontal direction h for further limiting exhaust outlet 11 is 0 °, which goes out wind energy While Wind Volume and low noise is effectively ensured, is conducive to wind and sends out at a distance forward, effectively meet the comfort in room It is required that and complete machine can be allowed to seem the folder towards n and horizontal direction h that is thinner more attractive, and further limiting return air inlet 12 Angle beta is 0 °, which is conducive to promote return air amount, and handsome in appearance.

Preferably, as shown in figure 13, exhaust outlet 11 is located at the upside of return air inlet 12, side air-out, downside return air knot in formation Structure.

In the 9th embodiment of air-conditioning equipment of the present invention, as shown in Figure 3 and Figure 4, in addition to above-mentioned first to the 7th Other than the feature of embodiment, the angle towards m and horizontal direction h for further limiting exhaust outlet 11 is θ, it is to be understood that The outer end face (normal direction of the outer end face of exhaust outlet 11 along m) and the angle of vertical direction v of exhaust outlet 11 also mutually should be θ, preceding State θ satisfactions：0 °≤θ≤35 °, which goes out wind energy while Wind Volume and low noise is effectively ensured, and is conducive to wind forward It is remote to send out, effectively meet the comfort requirement in room, and complete machine can be allowed to seem thinner more attractive, and further limit The angle β towards n and horizontal direction h of return air inlet 12 is 0 °, which is conducive to promote return air amount, and handsome in appearance.

Preferably, as shown in figure 13, exhaust outlet 11 is located at the upside of return air inlet 12, side air-out, downside return air knot in formation Structure, it is highly preferred that exhaust outlet 11 towards m, h is tilted upward relative to horizontal direction, condensing gas fed distance can be promoted.

In the tenth embodiment of air-conditioning equipment of the present invention, as shown in Figure 5 and Figure 6, in addition to above-mentioned first to the 7th Other than the feature of embodiment, the angle theta towards m and horizontal direction h for further limiting exhaust outlet 11 is 0 °, which goes out wind energy While Wind Volume and low noise is effectively ensured, is conducive to wind and sends out at a distance forward, effectively meet the comfort in room It is required that and complete machine can be allowed to seem the folder towards n and horizontal direction h that is thinner more attractive, and further limiting return air inlet 12 Angle is β, it is to be understood that the outer end face (normal direction of the outer end face of return air inlet 12 along n) of return air inlet 12 and vertical direction v Angle also mutually should be β, aforementioned β meets：0 °≤β≤15 °, which can allow complete machine to seem thinner, more attractive, and be conducive to Return air range is expanded, is conducive to promote return air amount, and will not occur causing heat exchanger 50 to condense because return air angle tilts very much The problem of water is revealed from return air inlet 12.

Preferably, as shown in figure 13, exhaust outlet 11 is located at the upside of return air inlet 12, side air-out, downside return air knot in formation Structure, it is highly preferred that return air inlet 12 towards n, h is downwardly inclined relative to horizontal direction, this can be conducive to because itself buoyancy occur on Inclined hot gas flows back along return air inlet 12, promotes return air amount.

In the 11st embodiment of air-conditioning equipment of the present invention, as shown in Figure 7 and Figure 8, in addition to above-mentioned first to Other than the feature of seven embodiments, the angle towards m and horizontal direction h for further limiting exhaust outlet 11 is θ, it is possible to understand that It is that the outer end face (outer end face of exhaust outlet 11 is along m normal directions) and the angle of vertical direction v of exhaust outlet 11 also mutually should be θ, preceding State θ satisfactions：0 °≤θ≤35 °, which goes out wind energy while Wind Volume and low noise is effectively ensured, and is conducive to wind forward It is remote to send out, effectively meet the comfort requirement in room, and complete machine can be allowed to seem thinner more attractive, and further limit The angle towards n and horizontal direction h of return air inlet 12 is β, it is to be understood that the outer end face of return air inlet 12 be (return air inlet 12 Normal direction of the outer end face along n) with the angle of vertical direction v β is also mutually should be, aforementioned β meets：0 °≤β≤15 °, the design energy Allow complete machine to seem thinner, more attractive, and be conducive to expand return air range, be conducive to promoted return air amount, and will not occur because The problem of return air angle tilts very much and 50 condensed water of heat exchanger is caused to be revealed from return air inlet 12.

Preferably, as shown in figure 13, exhaust outlet 11 is located at the upside of return air inlet 12, side air-out, downside return air knot in formation Structure, it is highly preferred that exhaust outlet 11 towards m, h is tilted upward relative to horizontal direction, condensing gas fed distance, return air can be promoted Mouthfuls 12 towards n, h is downwardly inclined relative to horizontal direction, this can be conducive to that upper inclined hot gas occurs along return air inlet because of itself buoyancy 12 reflux, promote return air amount.

More specifically, certainly, planar, this field skill of 11 outer end of exhaust outlet not necessarily as shown in figs. 2 and 4 Art personnel are it is understood that 11 outer end of exhaust outlet may be cambered surface state, specifically, when exhaust outlet 11 is cambered surface state When, the line of the lower wall the outer end point towards upper wall the outer end point and exhaust outlet 11 that m is 11 middle section of exhaust outlet of exhaust outlet 11 Exterior normal direction, when exhaust outlet 11 is planar, the exterior normal towards the middle section that m is exhaust outlet of exhaust outlet 11 is (vertical In exhaust outlet 11) direction.

Certainly, not necessarily as illustrated in fig 2 and fig planar of return air inlet 12, it will be appreciated by those skilled in the art that , 12 outer end of return air inlet may be cambered surface state, specifically, when 12 outer end of return air inlet is cambered surface state, return air inlet 12 Towards n be return air inlet 12 middle section upper wall the outer end point and return air inlet lower wall the outer end point line exterior normal n side To when return air inlet 12 is planar, the exterior normal n towards the middle section that n is return air inlet 12 of return air inlet 12 is (perpendicular to return air Mouth 12) direction.

In any of the above-described embodiment, as shown in Figure 1,10 roof of casing is recessed equipped with being constructed from its part to lower recess Slot 80, groove 80 is used to be nested for air-conditioning equipment and wall or window and assemble, and preferably groove 80 is located at air-conditioning equipment Between indoor side section and outdoor side section 70.

In any of the above-described embodiment, as shown in Fig. 2, other than the feature of above-mentioned any embodiment, sky is further limited It further includes heat exchanger 50 to adjust equipment, and heat exchanger 50 is preferably multi-bended structure, and is arranged in 40 outside of wind wheel in half-surrounded, more Preferably, as shown in Fig. 2, heat exchanger 50 intersects with the horizontal section JJ of 40 lower extreme point of wind wheel, wherein shell 10 is located at exhaust outlet Return air inlet 12 is equipped at the position of 11 downsides, heat exchanger 50 has more heat exchanger tubes 51, the heat exchange being located on the upside of horizontal section JJ The quantity of pipe 51 is less than the quantity for the heat exchanger tube 51 being located on the downside of horizontal section JJ.

It is worth noting that as shown in Fig. 2, the horizontal section JJ of 40 lower extreme point of wind wheel refer to 40 excircle of wind wheel most The tangent horizontal plane of low spot.In addition, horizontal section JJ intersects with heat exchanger 50, it is worth noting that, it is located at heat exchanger 50 51 quantity of heat exchanger tube on the upside of horizontal section JJ is less than for 51 quantity of heat exchanger tube being located on the downside of the JJ of section, for heat exchanger 50 The upper heat exchanger tube 51 intersected with horizontal section JJ, if more than half of the heat exchanger tube 51 intersected with horizontal section JJ is located at horizontal cutting On the downside of the JJ of face, then the heat exchanger tube 51 is counted as being located at the heat exchanger tube 51 on the downside of horizontal section JJ；If intersecting with horizontal section JJ More than half of heat exchanger tube 51 is located on the upside of horizontal section JJ, then the heat exchanger tube 51 is counted as being located at changing on the upside of horizontal section JJ Heat pipe 51；If the half of the heat exchanger tube 51 intersected with horizontal section JJ is located on the upside of horizontal section JJ, the other half is located at horizontal cutting On the downside of the JJ of face, which is counted as being located at the heat exchanger tube 51 on the downside of horizontal section JJ, such as shown in Fig. 2,50, heat exchanger 51 quantity of heat exchanger tube on the downside of horizontal section JJ is 17, and it is 7 to be located at 51 quantity of heat exchanger tube on the upside of horizontal section JJ.

In any of the above-described embodiment, air-conditioning equipment is window air conditioner or mobile air conditioner, and wind wheel 40 is window air conditioner or movement The indoor wind wheel of air-conditioning, spiral case air duct are the indoor spiral case air duct of window air conditioner or mobile air conditioner.

In conclusion air-conditioning equipment provided by the invention, the draw ratio of wind wheel meets：3.5≤L/D≤4.6, and its snail From the point K nearest with wind wheel distance to molded line and volute section against molded line length F1, the exhaust outlet of edge intersection point Q on the molded line in shell portion Hole wall length F2 and the diameter D of wind wheel between relationship be 1.8≤(F1+F2)/D≤2.5, may insure in volute section in this way Main water diversion part length and wind wheel size coordinate, to ensure to realize that the air-flow streamline in spiral case air duct is smooth, smooth, in turn Achieve the purpose that reduce pneumatic noise, reduce drag losses, promote the efficiency of product, and may be implemented equipment operation noise drop Down to 37 decibels hereinafter, being even reduced to 25 decibels, noise sense of discomfort is avoided well, promotes product usage comfort.

In the present invention, term " first ", " second " are only used for the purpose described, are not understood to indicate or imply phase To importance；Term " multiple " then refers to two or more, unless otherwise restricted clearly.Term " installation ", " connected ", The terms such as " connection ", " fixation " shall be understood in a broad sense, for example, " connection " may be a fixed connection, can also be detachably to connect It connects, or is integrally connected；" connected " can be directly connected, can also be indirectly connected through an intermediary.For this field For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.

In description of the invention, it is to be understood that the orientation or positional relationship of the instructions such as term "upper", "lower" be based on Orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than indicates or imply institute The device or unit of finger must have specific direction, with specific azimuth configuration and operation, it is thus impossible to be interpreted as to this hair Bright limitation.

In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc. Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the present invention It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with Suitable mode combines.

The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (8)

1. a kind of air-conditioning equipment, which is characterized in that including：

Shell which is provided with exhaust outlet and return air inlet；

Spiral case air duct, is located in the shell, and is connected to the exhaust outlet and the return air inlet, wherein the spiral case air duct Including volute section and volute tongue portion, the volute section has against edge, the interior end in contact against edge and the exhaust outlet；

Wind wheel is tubular wine wheel, and the wind wheel is located in the spiral case air duct, the inner surface of the volute section with perpendicular to described The middle section intersection of wind wheel axis is formed by the molded line that intersecting lens is the volute section, and the molded line has with described against edge Intersection point, it is long from line length F1, the hole wall of the exhaust outlet with the wind wheel apart from nearest point to the intersection point on the molded line 1.8≤(F1+F2)/D≤2.5 of axial length L satisfaction of degree F2, the diameter D of the wind wheel and the wind wheel, and 3.5≤L/D≤ 4.6。

2. air-conditioning equipment according to claim 1, which is characterized in that

The D meets：88mm≤D≤105mm.

3. air-conditioning equipment according to claim 1 or 2, which is characterized in that

It includes curved section and straightway that the molded line, which is located at part of the wind wheel between nearest point and the intersection point, The curved section and straightway are arranged apart from nearest point to the direction of the intersection point along the molded line from the wind wheel successively Cloth.

4. air-conditioning equipment according to claim 3, which is characterized in that

One end of the straightway is engaged with one end of the curved section, and the endpoint of the other end of the straightway is the friendship Point, the endpoint of the other end of the curved section are to make the line length of the F1, the curved section apart from nearest point with the wind wheel The line length S2 of S1 and the straightway meets：F1=S1+S2.

5. air-conditioning equipment according to claim 3, which is characterized in that

The straightway is angled straight lines section, makes the height for the opening that the volute section and the volute tongue portion limited in gradual The variation tendency to become larger.

6. air-conditioning equipment according to claim 1 or 2, which is characterized in that

The area A of the return air inlet meets with the area B of the exhaust outlet：2.5≤A/B≤3.5.

7. air-conditioning equipment according to claim 1 or 2, which is characterized in that

The direction of the exhaust outlet and the angle theta of horizontal direction meet：0 °≤θ≤35 °, and/or

The direction of the return air inlet and the angle β of horizontal direction meet：0°≤β≤15°.

8. air-conditioning equipment according to claim 1 or 2, which is characterized in that

The air-conditioning equipment is window air conditioner or mobile air conditioner, and the wind wheel is the indoor of the window air conditioner or mobile air conditioner Wind wheel, the spiral case air duct are the indoor spiral case air duct of the window air conditioner or mobile air conditioner.