CN108361888A - Air-conditioning equipment - Google Patents

Abstract

The present invention provides a kind of air-conditioning equipments, including：Shell, is equipped with exhaust outlet and return air inlet, and the area A of return air inlet and the area B of exhaust outlet meet：2.5≤A/B≤3.5；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, 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, and the diameter D of hole wall length F2 and wind wheel on molded line from line length F1, exhaust outlet with wind wheel apart from nearest point to intersection point meet 1.8≤(F1+F2)/D≤2.5.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, During realizing the present invention, inventor has found the prior art, and there are the following problems：There is room at runtime in existing air-conditioning equipment The problems such as inside sound of the wind is unstable, noise is big, causes product usage experience bad, and leads to that air-conditioning equipment entirety efficiency is relatively low, energy Consumption 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 is equipped with exhaust outlet And return air inlet, the area A of the return air inlet meet with the area B of the exhaust outlet：2.5≤A/B≤3.5；Spiral case air duct, is located at It in the shell, and is connected to the exhaust outlet and the return air inlet, wherein the spiral case air duct includes volute section and volute tongue Portion, the volute section have against edge, the interior end in contact against edge and the exhaust outlet；Wind wheel is tubular wine wheel, described Wind wheel is located in the spiral case air duct, and the inner surface of the volute section intersects institute's shape with perpendicular to the middle section of the wind wheel axis At intersecting lens be the volute section molded line, the molded line has intersection point with described against edge, on the molded line from it is described Line length F1, the hole wall length F2 of the exhaust outlet and the diameter D of the wind wheel of the wind wheel apart from nearest point to the intersection point expire 1.8≤(F1+F2)/D≤2.5 of foot.

The area ratio of the air-conditioning equipment that the above embodiment of the present invention provides, return air inlet and exhaust outlet meets：2.5≤return air Open area A/ exhaust outlets area B≤3.5, and on the molded line of its volute section from wind wheel apart from nearest point to molded line and volute section It is 1.8≤(F1+ against the relationship between the molded line length F1, the hole wall length F2 of exhaust outlet and the diameter D of wind wheel of edge intersection point F2)/D≤2.5 may insure that the main water diversion part length in volute section is coordinated with wind wheel size, and ensure wind wheel pair in this way Main water diversion part flow resistance in the driving force of air-flow, the spiral case air duct influenced by return air inlet and exhaust outlet in air quantity and volute section Coordinate, pneumatic noise, reduction resistance damage are reduced to ensure to realize that the air-flow streamline in spiral case air duct is smooth, smooth, and then reach The purpose of mistake 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 or air duct is too long, the windage in volute section is bigger than normal, and equipment resistance loss can be caused to increase in this way, 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, the main water diversion part in volute section keep a suitable rapport with wind wheel size, are meeting Simultaneously, wind wheel can work realizing that noise reduction is optimized in the most efficient rotating speed frequency range of noise reduction for wind speed and wind pressure, And guarantee volute section windage is small, fair current excellent effect, it is ensured that realizes that the air-flow streamline in spiral case air duct is smooth, smooth, reaches drop Low-flow noise, the purpose for reducing windage loss, meanwhile, the area ratio by further controlling return air inlet and exhaust outlet meets： 2.5≤return air open area A/ exhaust outlets area B≤3.5, it can be ensured that in exhaust outlet and return air when based on aforementioned spiral case Duct design The air flow rate at mouthful place can be carried with parameter coordinations, reduction pneumatic noises such as flow resistance, pressure drop and wind wheel driving forces in spiral case air duct Rise product efficiency.

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 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 further includes：Heat exchanger, the horizontal cutting with the wind wheel lower extreme point Intersect in face, wherein the exhaust outlet is located on the upside of the return air inlet, and the heat exchanger has more heat exchanger tubes, is located at the water The quantity of the heat exchanger tube on the upside of side grain is less than the quantity for the heat exchanger tube being located on the downside of the horizontal section.

In the present solution, the return air position of designed enclosures is located at the lower part of air draft position, and designs heat exchanger and be located at wind wheel Number of heat exchange tubes on the upside of lower horizontal section is less than the number of heat exchange tubes being located on the downside of the horizontal section, can improve gas in this way Stream and the noise level in heat exchanger Convective Heat Transfer, make the reduction of noise total value, and realize flow resistance at reduction heat exchanger, are promoted Air quantity.

In any of the above-described technical solution, the D meets：88mm≤D≤105mm.

In the present solution, be based on above-mentioned 1.8≤(F1+F2)/D≤2.5,88mm≤D≤105mm is set, it in this way can be with Meet the air quantity requirement of wind wheel, while not will increase air-supply noise again, and designed conducive to package size, realizes and reduce in canyon The volume of side, and if D has that wind wheel is too small, is unfavorable for improving air quantity, and indoor easy to increase is sent when being less than 88mm Wind noise, and if D is easy to occupy the space of heat exchanger, is unfavorable for reducing the volume of canyon inboard portion when being more than 105mm.

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.

In above-mentioned technical proposal, the junction of the curved section and the straightway seamlessly transits.

Air-flow in the present solution, the binding site of curved section and straightway is made to seamlessly transit, can be conducive in this way from curved section Surface is flowed to straight line section surface gentle transition, is kept the streamline of spiral case air duct interior air-flow smooth, is avoided causing due to curvature mutation Turbulent flow occurrence and development improve noise level.

In any of the above-described technical solution, the straightway is angled straight lines section, makes the volute section and the institute of volute tongue portion The height of the opening limited 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 can reduce exit pressure drop, is conducive to air-flow and keeps smooth-going, makes gas in spiral case air duct The streamline of stream is smooth, avoids causing turbulent flow occurrence and development due to curvature mutation, improves noise level.

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 tubular wine wheel of formula air-conditioning or mobile air conditioner, the spiral case air duct are the indoor of the window air conditioner or mobile air conditioner Spiral case 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 that indoor side section and outdoor side section 70 are specifically said by taking window air conditioner as an example Bright, as shown in Fig. 2, Fig. 9, Figure 10, window air conditioner includes：Shell 10, spiral case air duct and wind wheel 40.

More specifically, shell 10 is equipped with the exhaust outlet 11 and return air inlet 12 for belonging to its indoor side section, the face of return air inlet 12 Product A and the area B of exhaust outlet 11 meet：2.5≤A/B≤3.5；Spiral case air duct is located in shell, and with exhaust outlet 11 and return air Mouthfuls 12 are 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 edge 21 with The interior end in contact of exhaust outlet 11；Wind wheel 40 is tubular wine wheel, which is located in spiral case air duct, the inner surface of volute section 20 and Perpendicular to the middle section of 40 axis of wind wheel, intersection is formed by the molded line 22 that intersecting lens is volute section 20, molded line 22 with against edge 21 With intersection point Q, grown from the hole wall 111 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 diameter D for spending F2 and wind wheel 40 meets 1.8≤(F1+F2)/D≤2.5.

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 area ratio of the air-conditioning equipment that the above embodiment of the present invention provides, return air inlet 12 and exhaust outlet 11 meets：2.5≤ 12 area A/ exhaust outlets of return air inlet, 11 area B≤3.5, and on the molded line 22 of its volute section 20 from wind wheel 40 apart from nearest point K is to molded line 22 and volute section 20 against the 22 length F1 of molded line of 21 intersection point Q of edge, the 111 length F2 of hole wall and wind wheel of exhaust outlet 11 Relationship between 40 diameter D is 1.8≤(F1+F2)/D≤2.5, may insure the main water diversion part in volute section 20 in this way Length is coordinated with 40 size of wind wheel, and ensures the snail that wind wheel 40 is influenced on the driving force of air-flow, by return air inlet 12 and exhaust outlet 11 Main water diversion part flow resistance in shell air duct in air quantity and volute section 20 is coordinated, to ensure to realize the air-flow streamline in spiral case air duct Smoothly, smooth, and then achieve the purpose that reduce pneumatic noise, reduce drag losses, take into account the noise reduction and energy for promoting product Effect.

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 to pay high 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 equipment 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, the main water diversion part in volute section 20 keeps a suitable association with 40 size of wind wheel Tune relationship is meeting wind speed and wind pressure simultaneously, and wind wheel 40 can realize that noise reduction optimizes and noise reduction is most efficient Work in rotating speed frequency range, and guarantee 20 windage of volute section is small, fair current excellent effect, it is ensured that realize the air-flow streamline in spiral case air duct Smoothly, smooth, achieve the purpose that reduce pneumatic noise, reduce windage loss, meanwhile, by further controlling return air inlet 12 and row The area in air port 11 is than meeting：2.5≤return air inlet, 12 area A/ exhaust outlets, 11 area B≤3.5, it can be ensured that be based on aforementioned spiral case wind Air flow rate when road designs at exhaust outlet 11 and return air inlet 12 can drive with flow resistance, pressure drop and the wind wheel 40 in spiral case air duct The parameter coordinations such as power reduce pneumatic noise, promote product efficiency.

In the second 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 3rd 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.

For the embodiment in above-mentioned first to third, it is to be understood that as shown in Figure 2, it is preferable that return air inlet 12 and Exhaust outlet 11 is generally rectangular shaped or rectangular, return air inlet 12 and exhaust outlet 11 it is of same size when, the height Y2 of return air inlet 12 and The ratio between the height Y1 of exhaust outlet 11 Y2/Y1 are equal to the ratio between 12 area A of return air inlet and 11 area B of exhaust outlet namely return air inlet 12 The height Y1 of height Y2 and exhaust outlet 11 equally meets：2.5≤return air open height Y2/ air draft open heights Y1≤3.5.

In the fourth embodiment of air-conditioning equipment of the present invention, as depicted in figs. 1 and 2, in addition to above-mentioned first to third 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 5th embodiment of air-conditioning equipment of the present invention, as shown in Figure 3 and Figure 4, in addition to above-mentioned first to third 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, cold air fed distance can be promoted.

In the sixth embodiment of air-conditioning equipment of the present invention, as shown in Figure 5 and Figure 6, in addition to above-mentioned first to third 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 7th embodiment of air-conditioning equipment of the present invention, as shown in Figure 7 and Figure 8, in addition to above-mentioned first to third 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 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, cold air fed distance, return air inlet can be promoted 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 12 because of itself buoyancy Reflux promotes 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 the 8th embodiment of air-conditioning equipment of the present invention, as shown in Fig. 2, in addition to the feature of above-mentioned any embodiment In addition, it further includes heat exchanger 50 to further limit air-conditioning equipment, and heat exchanger 50 intersects with the horizontal section JJ of 40 lower extreme point of wind wheel, Wherein, shell 10, which is located at the position of 11 downside of exhaust outlet, is equipped with return air inlet 12, and heat exchanger 50 has more heat exchanger tubes 51, is located at The quantity of heat exchanger tube 51 on the upside of horizontal section is less than the quantity for the heat exchanger tube 51 being located on the downside of horizontal section.

It is worth noting that the horizontal section JJ of 40 lower extreme point of wind wheel refers to tangent with the minimum point of 40 excircle of wind wheel Horizontal plane.In addition, horizontal section JJ intersects with heat exchanger 50, and heat exchanger 50 is located at the heat exchanger tube 51 on the upside of horizontal section JJ Quantity be less than be located at horizontal section JJ on the downside of 51 quantity of heat exchanger tube, it is worth noting that, on heat exchanger 50 with horizontal cutting The heat exchanger tube 51 of face JJ intersections should if more than half of the heat exchanger tube 51 intersected with horizontal section JJ is located on the downside of the JJ of section Heat exchanger tube 51 is counted as being located at the heat exchanger tube 51 on the downside of horizontal section JJ；If the half of the heat exchanger tube 51 intersected with horizontal section JJ It is located on the upside of the JJ of section above, then the heat exchanger tube 51 is counted as being located at the heat exchanger tube 51 on the upside of horizontal section JJ；With horizontal section The half of the heat exchanger tube 51 of JJ intersections is located on the upside of horizontal section JJ, the other half is located on the downside of horizontal section JJ, the heat exchanger tube 51 It is calculated as being located at the heat exchanger tube 51 on the downside of horizontal section JJ, such as shown in Fig. 2, heat exchanger 50 is located at the heat exchange on the downside of horizontal section JJ 51 quantity of pipe is 17, and it is 7 to be located at 51 quantity of heat exchanger tube on the upside of horizontal section JJ.

In the present solution, the return air position of designed enclosures 10 is located at the lower part of air draft position, and designs heat exchanger 50 and be located at 51 quantity of heat exchanger tube on the upside of wind wheel lower horizontal section JJ is less than 51 quantity of heat exchanger tube being located on the downside of horizontal section JJ, makes The most of heat exchanger tube 51 of heat exchanger 50 is located at the lower section of wind wheel 40, can improve air-flow and 50 Convective Heat Transfer of heat exchanger in this way In noise level, make noise total value reduction, operating parameter control it is proper when, or even can realize by equipment operation noise control exist 25 decibels hereinafter, greatly lifting means comfort, and can realize and reduce flow resistance at heat exchanger 50, promote air quantity.

Preferably, heat exchanger 50 is multi-bended structure, and is arranged in 40 outside of wind wheel in half-surrounded.

In the 9th embodiment of air-conditioning equipment of the present invention, other than the feature of above-mentioned any embodiment, into one The diameter D of step setting wind wheel 40 meets：88mm≤D≤105mm.

In the present solution, being based on 12 area A/ exhaust outlets 11 of above-mentioned 1.8≤(F1+F2)/D≤2.5 and 2.5≤return air inlet Area B≤3.5 are arranged 88mm≤D≤105mm, can meet the air quantity requirement of wind wheel 40 in this way, while not will increase air-supply again Noise, and conducive to package size design, realize reduce canyon on the inside of volume, and if D be less than 88mm when, there are 40 mistakes of wind wheel Small problem is unfavorable for improving air quantity, and indoor Lateral supply noise easy to increase, and if D is easy to occupy and changed when being more than 105mm The space of hot device 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 any embodiment It can get more excellent muting function.

In the tenth embodiment of air-conditioning equipment of the present invention, as shown in figure 14, in addition to the spy of above-mentioned any embodiment Other than sign, wind wheel 40 is tubular wine wheel, and tubular wine wheel requires small, will not occupy the space of heat exchanger 50 to radial dimension of, can Conducive to the volume of reduction canyon inboard portion, and tubular wine wheel has the advantages that the uniform low noise of air-supply, is based on above-mentioned wind Road volute structure is, it can be achieved that promote the outlet air uniformity and mildness of product, while ensuring to 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.

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 11st embodiment of air-conditioning equipment of the present invention, as shown in Figure 10, in addition to above-mentioned any embodiment Other than feature, it includes curved section to further limit molded line 22 to be located at part of the wind wheel 40 between nearest point K and intersection point Q 221 and straightway 222, curved section 221 and straightway 222 along molded line 22 from wind wheel 40 apart from nearest point K to intersection point Q's Direction is arranged successively, in identical load, can promote air quantity, and can be gently oriented to air-flow using curved section 221, and Resistance and pressure drop of the curved section 221 when playing guiding role are small, can avoid turbulent flow noise, can be in curve using straightway 222 The downstream portion of section 221 further makes air-flow in order, keeps outlet air more smooth, meanwhile, the group of curved section 221 and straightway 222 Conjunction form 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 make curved section 221 seamlessly transit with the binding site of straightway 222, can be conducive to air-flow in this way from 221 surface of curved section to 222 surface of straightway Gentle transition flows, and keeps the streamline of spiral case air duct interior air-flow smooth, avoids causing turbulent flow occurrence and development due to curvature mutation, change Kind 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 any of the above-described embodiment, it is preferable that air-conditioning equipment is window air conditioner or mobile air conditioner, and wind wheel 40 is that the window is empty It adjusts or the indoor wind wheel of mobile air conditioner, spiral case air duct is the indoor spiral case air duct of window air conditioner or mobile air conditioner.

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 conclusion the area ratio of air-conditioning equipment provided by the invention, return air inlet and exhaust outlet meets：2.5≤return air Open area A/ exhaust outlets area B≤3.5, and on the molded line of its volute section from wind wheel apart from nearest point K to molded line and spiral case Portion against the relationship between the molded line length F1, the hole wall length F2 of exhaust outlet and the diameter D of wind wheel of edge intersection point Q be 1.8≤(F1 + F2)/D≤2.5, it may insure that the main water diversion part length in volute section is coordinated with wind wheel size in this way, and ensure wind wheel pair Main water diversion part flow resistance in the driving force of air-flow, the spiral case air duct influenced by return air inlet and exhaust outlet in air quantity and volute section Coordinate, pneumatic noise, reduction resistance damage are reduced to ensure to realize that the air-flow streamline in spiral case air duct is smooth, smooth, and then reach The purpose of mistake promotes product efficiency, and may be implemented equipment running lower noise to 37 decibels hereinafter, being even reduced to 25 points Shellfish avoids noise sense of discomfort 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 (9)

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

Shell, is equipped with exhaust outlet and return air inlet, and the area A of the return air inlet meets with the area B of the exhaust outlet：2.5≤A/B ≤3.5；

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 The diameter D for spending F2 and the wind wheel meets 1.8≤(F1+F2)/D≤2.5.

2. air-conditioning equipment according to claim 1, 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°.

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

Heat exchanger intersects with the horizontal section of the wind wheel lower extreme point, wherein and the exhaust outlet is located on the upside of the return air inlet, The heat exchanger has more heat exchanger tubes, and the quantity for being located at the heat exchanger tube on the upside of the horizontal section is less than positioned at the water The quantity of the heat exchanger tube on the downside of side grain.

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

The D meets：88mm≤D≤105mm.

5. 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.

6. air-conditioning equipment according to claim 5, 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.

7. air-conditioning equipment according to claim 6, which is characterized in that

The junction of the curved section and the straightway seamlessly transits.

8. air-conditioning equipment according to claim 5, 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.

9. 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.