阅读说明：本技术 一种蜗舌、风道结构及空调器 (A kind of volute tongue, air channel structure and air conditioner ) 是由 王天垚 张伟捷 蒋力 鲁旻 于 2019-08-26 设计创作，主要内容包括：本发明提供了一种蜗舌、风道结构及空调器。所述蜗舌包括：蜗舌本体以及与所述蜗舌本体连接的调节部,且所述调节部可绕所述蜗舌本体的侧端旋转。本发明中蜗舌与风轮之间的间隙渐变,存在扩压的效果,削弱进入蜗舌与风轮间隙的气流速度,减小气流紊乱,降低噪音。同时还有利于风轮运转带动的气流更多的从空调器的出风口排出,从而增加空调器的风量。(The present invention provides a kind of volute tongue, air channel structure and air conditioners.The volute tongue includes: volute tongue ontology and the adjustment portion that connect with the volute tongue ontology, and the adjustment portion can be rotated around the side of the volute tongue ontology.Gap gradual change in the present invention between volute tongue and wind wheel, there are the effects of diffusion, weaken the air velocity for entering volute tongue and wind wheel gap, reduce air turbulence, reduce noise.It also helps the air-flow that wind wheel operating drives simultaneously to be more discharged from the air outlet of air conditioner, to increase the air quantity of air conditioner.)

1. a kind of volute tongue characterized by comprising

Volute tongue ontology (1)；

Adjustment portion (2) is connect with the volute tongue ontology (1), and the adjustment portion (2) can be around the side of the volute tongue ontology (1) Rotation.

2. volute tongue according to claim 1, which is characterized in that the side of the volute tongue ontology (1) is equipped with first axle (111), axis hole (112) are equipped in the first axle (111), the adjustment portion (2) is equipped with to be cooperated with the axis hole (112) Second axis (211), second axis (211) can the rotations in the axis hole (112).

3. volute tongue according to claim 2, which is characterized in that the adjustment portion (2) includes plate body (21), second axis (211) it is fixed on the plate body (21) by dowel (212).

4. volute tongue according to claim 3, which is characterized in that the dowel (212) is set to second axis (211) End is suitable for for second axis (211) being limited in the axis hole (112).

5. volute tongue according to claim 3, which is characterized in that the plate body (21) is equipped with recess portion (22), the recess portion (22) groove or cross sectional shape being provided on the plate body (21) outer surface are the plate body of both ends protrusion, intermediate indent (21) the recessed portion on outer surface.

6. volute tongue according to claim 1, which is characterized in that the side and the adjustment portion (2) of the volute tongue ontology (1) Between have between hole (4).

7. volute tongue according to claim 2, which is characterized in that further include locating piece (3), be suitable for the fixed adjustment portion (2) rotation position.

8. volute tongue according to claim 7, which is characterized in that the locating piece (3) includes telescopic rod, the telescopic rod One end is fixed on the volute tongue ontology (1), and the other end of the telescopic rod is fixed on the adjustment portion (2).

9. volute tongue according to claim 7, which is characterized in that the locating piece includes being set on the volute tongue ontology (1) Hollow stem (31) and be set to the adjustment portion (2) on mobile bar (32), the center line of the hollow stem (31) is with institute The kernel of section for stating axis hole (112) is first circular arc in the center of circle, and the center line of the mobile bar (32) is with second axis (211) kernel of section is second circular arc in the center of circle, and the radius of first circular arc is identical as the radius of second circular arc.

10. volute tongue according to claim 9, which is characterized in that be also provided with screw on the side wall of the hollow stem (31) Hole (311), screw pass through the screw hole (311) and the mobile bar (32) are fixed in the hollow stem (31).

11. volute tongue according to claim 1, which is characterized in that the volute tongue ontology (1) includes into the first of angle setting Wind-guiding section (11) and the second wind-guiding section (12), the first wind-guiding section (11) connect with the adjustment portion (2).

12. volute tongue according to claim 11, which is characterized in that the first wind-guiding section (11) and/or the adjustment portion (2) micropore is additionally provided on.

13. a kind of air channel structure, which is characterized in that further include pedestal including such as described in any item volute tongues of claim 1-12 And it is installed on the wind wheel (5) on the pedestal, the air outlet side of the wind wheel (5) is equipped with the volute tongue, the adjustment portion (2) It is oppositely arranged with the wind wheel (5).

14. air channel structure according to claim 13, which is characterized in that between the adjustment portion (2) and the wind wheel (5) Distance be greater than the side and the distance between the wind wheel (5) of the volute tongue ontology (1).

15. a kind of air conditioner, which is characterized in that including air channel structure according to claim 13 or 14.

Technical field

The present invention relates to air-conditioning technical fields, in particular to a kind of volute tongue, air channel structure and air conditioner.

Background technique

Heat exchanger and tubular wine wheel are provided in the shell of air conditioner, room air enters tubular wine wheel after heat exchanger, And it is sent to the room through air-conditioner air outlet under the action of tubular wine wheel, achieve the purpose that adjust room temperature.Snail is additionally provided in air conditioner Tongue equably flows out to air outlet with the air-flow for guiding tubular wine wheel to generate, to improve the stability of air flow field at air outlet. And the structure of volute tongue has large effect to the air-flow generation noise of air conditioner.

It can be seen that designing one kind to reduce the volute tongue of noise from air conditioner is a weight urgently to be resolved in current industry Want problem.

Summary of the invention

Problems solved by the invention is to provide a kind of volute tongue, is asked with solving the generally existing pneumatic noise of existing air conditioner Topic.

To solve the above problems, the present invention provides a kind of volute tongue, comprising:

Volute tongue ontology；

Adjustment portion is connect with the volute tongue ontology, and the adjustment portion can be rotated around the side of the volute tongue ontology.

Pass through rotation adjustment portion as a result, thus it is possible to vary angle and adjustment portion and wind between adjustment portion and volute tongue ontology Wheel the distance between, with volute tongue in the prior art compared with the gap between wind wheel is held essentially constant, the present invention in volute tongue with Gap gradual change between wind wheel, there are the effects of diffusion, to weaken the air velocity V2 into volute tongue and wind wheel gap, reduce Air turbulence reduces noise.The air-flow that wind wheel operating drives is also helped simultaneously to be more discharged from the air outlet of air conditioner, from And increase the air quantity of air conditioner.In addition, with being separately provided in volute tongue in the prior art for changing between volute tongue and wind wheel The component of gap is compared, and rotatable adjustment portion is arranged in the present invention on volute tongue ontology, so that one section opposite with wind wheel in volute tongue Gap between wind wheel is adjustable, and then can obtain optimal angle between adjustment portion and volute tongue ontology by constantly regulate Degree, to realize optimal diffusion effect.

Further, the side of the volute tongue ontology is equipped with first axle, is equipped with axis hole, the adjustment portion in the first axle It is equipped with the second axis with the shaft hole matching, second axis can rotate in the axis hole.

The present invention realizes the mode that adjustment portion is rotated around the side of volute tongue ontology by the cooperation of axis and axis hole, simple, can It leans on.

Further, the adjustment portion includes plate body, and second axis is fixed on the plate body by dowel.

Dowel is applied not only to connection plate body and the second axis, also has the function of limit, prevents the second axis to be pierced by axis hole, keep away Exempt from the second axis to move in axis hole.

Further, the dowel is set to the end of second axis, suitable for second axis is limited in the axis In hole.

In this way, the second axis is avoided to fail to be entirely insertable in axis hole, the bonding strength of volute tongue ontology and adjustment portion is reduced, simultaneously Have an effect on beauty.

Further, the plate body is equipped with recess portion, the recess portion be provided at groove on the plate body outer surface or Cross sectional shape is the recessed portion on the outer surface of the plate body of both ends protrusion, intermediate indent.

The setting of recess portion can increase the distance between adjustment portion and wind wheel, to reduce the speed of air-flow Q2, reduction is made an uproar Sound increases air conditioner air quantity.

Further, hole between having between the side and the adjustment portion of the volute tongue ontology.

In this way, the air-flow Q4 entered from heat exchanger side can be made to meet in advance with air-flow Q2 from hole, air-flow Q2 by To after the weak impact of air-flow Q4, speed is reduced, and then helps to reduce impact force when air-flow Q2 and air-flow Q3 meets, Reduce noise.

It further, further include locating piece, the rotation position suitable for the fixation adjustment portion.

In this way, preventing adjustment portion rotation position to be not fixed firmly to improve the job stability of volute tongue, change volute tongue and wind The distance between wheel increases noise.

Further, the locating piece includes telescopic rod, and one end of the telescopic rod is fixed on the volute tongue ontology, institute The other end for stating telescopic rod is fixed in the adjustment portion.

Postrotational plate body position is fixed in this way, realizing.

Further, the locating piece includes the hollow stem on the volute tongue ontology and is set in the adjustment portion Mobile bar, the center line of the hollow stem is the first circular arc using the kernel of section of the axis hole as the center of circle, the mobile bar Center line be and the radius of first circular arc and described the using the kernel of section of second axis as second circular arc in the center of circle The radius of two circular arcs is identical.

In this way, the range of adjustment portion rotation angle can be increased, in order to obtain optimal gap size, generate better Diffusion effect.

Further, screw hole is also provided on the side wall of the hollow stem, screw passes through the screw hole for the shifting Lever is fixed in the hollow stem.

Using the limit method that screw-driving is fixed, relatively firm, high reliablity.

Further, the volute tongue ontology include into angle setting the first wind-guiding section and the second wind-guiding section, described first Wind-guiding section is connect with the adjustment portion.

The setting of first wind-guiding section, so that the velocity variations into the air-flow Q2 between volute tongue and wind wheel are more obvious, together When, the increase of the first wind-guiding section is equivalent to the width dimensions for reducing adjustment portion, and then is conducive to increase the adjusting model of adjustment portion It encloses.

Further, micropore is additionally provided in the first wind-guiding section and/or the adjustment portion.

Micropore is provided with the air-flow Q4 impact air-flow Q2 for being conducive to enter from heat exchanger side, to reduce air-flow Q2 and air-flow Q3 Impact force when meeting reduces noise.

A kind of air channel structure, which is characterized in that including volute tongue as described above, further include pedestal and be installed on the bottom The air outlet side of wind wheel on seat, the wind wheel is equipped with the volute tongue, and the adjustment portion is oppositely arranged with the wind wheel.

Further, the side of the distance between the adjustment portion and the wind wheel greater than the volute tongue ontology and the wind The distance between wheel.

Thus when air-flow passes through between volute tongue and wind wheel, the effect of diffusion is generated in the junction of volute tongue ontology and adjustment portion Fruit, and then weaken the speed for entering the air-flow of volute tongue and wind wheel gap, reduce air turbulence, reduces noise.

Beneficial effect possessed by air channel structure provided by the invention is identical as above-mentioned volute tongue, and details are not described herein.

A kind of air conditioner, which is characterized in that including air channel structure as described above.

Beneficial effect possessed by air channel structure provided by the invention is identical as above-mentioned volute tongue, and details are not described herein.

Detailed description of the invention

Fig. 1 is the structure chart of volute tongue in the prior art；

Fig. 2 is the overall structure figure of volute tongue in the present invention；

Fig. 3 is another viewing angle constructions figure of volute tongue in the present invention；

Fig. 4 is the side view of volute tongue in the present invention；

Fig. 5 is the local structural graph of air conditioner in the present invention；

Fig. 6 is enlarged drawing at I in Fig. 5；

Fig. 7 is the overall structure figure of volute tongue ontology in the present invention；

Fig. 8 is the side view of volute tongue ontology in the present invention；

Fig. 9 is the structure chart of adjustment portion in the present invention；

Figure 10 is enlarged drawing at II in Fig. 9；

Figure 11 is the structure chart in the present invention under another visual angle of adjustment portion；

Figure 12 is the side view of adjustment portion in the present invention.

Description of symbols:

1- volute tongue ontology；2- adjustment portion；3- locating piece；Hole between 4-；5- wind wheel；

11- the first wind-guiding section；12- the second wind-guiding section；21- plate body；22- recess portion；31- hollow stem；32- mobile bar；

111- first axle；112- axis hole；The second axis of 211-；212- dowel；311- screw hole.

Specific embodiment

The air-flow that volute tongue in air conditioner can guide tubular wine wheel to generate equably flows out to air outlet, but volute tongue simultaneously Also have the function of dividing air-flow, therefore the air-flow that tubular wine wheel generates can not all flow out to air outlet.As shown in Figure 1, When tubular wine wheel operating, to volute tongue top, flow velocity is very fast, pressure is larger, most of for the gas shock that tubular wine wheel drives Air-flow is flowed out from the wind-guiding side b of volute tongue along air duct, for convenient for illustrating, which is denoted as Q1, and speed is denoted as V1, but still has Fraction air-flow can be returned to from the windward side a of volute tongue on the inside of air duct, flowed into the gap between tubular wine wheel and volute tongue, the part Air-flow is denoted as Q2, and speed is denoted as V2.Volute tongue in the prior art is basic close to one section of gap between fan blade of tubular wine wheel Remain unchanged, without obvious diffuser, therefore speed V2 will not be obviously reduced, and in fan blade rotary course, also have air-flow from Heat exchanger side passes through, and flows to tubular wine wheel with speed V3, which is denoted as Q3, at this point, speed V2 and V3 mutually impacts, Meeting stream field generates upset, so that air conditioner noises increase.

To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention Specific embodiment be described in detail.

It please refers to shown in Fig. 2-6, the present invention provides a kind of volute tongue, is used for air conditioner, air conditioner includes wind wheel, and volute tongue is set to The air outlet side of wind wheel 5.Volute tongue includes:

Volute tongue ontology 1；

Adjustment portion 2 is connect with volute tongue ontology 1, and adjustment portion 2 can be rotated around the side of volute tongue ontology 1.Wherein, volute tongue sheet The side of body refers to the one end of volute tongue close to wind wheel.

The present invention by the side of volute tongue ontology 1 be arranged adjustment portion 2, by rotate adjustment portion 2, change adjustment portion 2 with Angle and the distance between adjustment portion 2 and wind wheel 5 between volute tongue ontology 1, and in the prior art between volute tongue and wind wheel Gap, which is held essentially constant, to be compared, and the gap gradual change in the present invention between volute tongue and wind wheel, there are the effects of diffusion, it should be understood that , by the aforementioned analysis to the prior art, enters volute tongue in order to prevent and the air velocity V2 in 5 gap of wind wheel is excessive, with The mutual impact force of air-flow entered from heat exchanger side is big, upsets flow field, and the so-called rotation to adjustment portion 2 of the present invention is adjusted, It is to be adjusted with the purpose for increasing gap between volute tongue and wind wheel 5, so that the distance between adjustment portion 2 and wind wheel 5 are greater than The distance between volute tongue ontology 1 and wind wheel 5 generate the effect of diffusion so that volute tongue and the gap of wind wheel 5 expand gradually, And then weaken the air velocity V2 for entering volute tongue and 5 gap of wind wheel, reduce air turbulence, reduces noise.Wind is also helped simultaneously The air-flow that 5 operating of wheel drives more is discharged from the air outlet of air conditioner, to increase the air quantity of air conditioner.In addition, with existing It is separately provided in volute tongue in technology for changing volute tongue compared with the component in gap between wind wheel, the present invention is in volute tongue ontology 1 The upper rotatable adjustment portion 2 of setting, so that one section of gap between wind wheel opposite with wind wheel in volute tongue is adjustable, Jin Erke To obtain optimal angle between adjustment portion and volute tongue ontology by constantly regulate, to realize optimal diffusion effect.

Further, it as shown in fig. 7, the side of volute tongue ontology 1 is equipped with multiple first axles 111, is gone back in each first axle 111 Equipped with along first axle 111 axially through axis hole 112, insertion suitable for the second axis 211 being arranged in adjustment portion 2.First axle 111 Extend from the side of volute tongue ontology 1 to the direction close to adjustment portion 2.Two or more first axles 111 are in volute tongue The side of ontology 1 is evenly spaced on along with the axial parallel direction of wind wheel 5, in the present invention, with the axial parallel direction of wind wheel 5 For front-rear direction as shown in Figure 2.

A notch is formed between two neighboring first axle 111, as shown in Figure 1, first axle 111 can be set to volute tongue ontology The front end of 1 side or most latter end, also can be set has centainly in the front end of the side with volute tongue ontology 1 or least significant end Some position of the centre of distance, therefore, positioned at the front end or most of the side of the first axle 111 and volute tongue ontology 1 of rear and front end Notch is likely to form between end, it is also possible to not form notch.

As shown in Fig. 2, hole 4 between also having between volute tongue ontology 1 and adjustment portion 2, hole 4 includes being formed in volute tongue ontology 1 Side on notch.There are also the back sides that part enters volute tongue for the air-flow entered from heat exchanger side, for sake of convenience, this part Air-flow is denoted as Q4, and speed is denoted as V4, wherein the back side of so-called volute tongue refers to the side that volute tongue is not contacted with air-flow Q2.By Between volute tongue ontology 1 and adjustment portion 2 formed between hole 4, can make from heat exchanger side enter air-flow Q4 from hole 4 in advance with Air-flow Q2 meets, and after weak impact of the air-flow Q2 by air-flow Q4, speed is reduced, and then helps to reduce air-flow Q2 and gas Impact force when stream Q3 meets, reduces noise.

As shown in Fig. 9,10,11, adjustment portion 2 includes plate body 21, and wherein one end of plate body 21 is equipped with the second axis 211, and second The quantity of axis 211 is less than or equal to the quantity of first axle 111, and the quantity of the second axis 211 can be one, at this time the second axis 211 , can also be equal with the quantity of first axle 111 for a long axis, at this time the length of the second axis 211 and adjacent second axis 211 it Between distance be preferably also it is consistent with the setting of first axle 111, in order to which the second axis 211 and axis hole 112 correspond.

Further, plate body 21 is equipped with recess portion 22, and recess portion 22 can be the groove on 21 outer surface of plate body, groove It can be strip-shaped groove, groove extends along the direction parallel with the axis of wind wheel 5 at this time.The quantity of groove can be multiple, Two or more grooves are arranged along the direction interval vertical with 5 axis of wind wheel.Recess portion 22 is also possible to cross sectional shape Recessed portion on the outer surface of the plate body 21 of both ends protrusion, intermediate indent, the at this time outer surface of the plate body 21 after moulding process On directly form recess portion 22, without being separately provided groove, save technique, it is easy to operate.Wherein, the outer surface of plate body 21 refers to The one side that plate body 21 is contacted with air-flow Q2.The setting of center dant 22 of the present invention, can further increase adjustment portion 2 and wind wheel 5 it Between distance, to reduce the speed of air-flow Q2, and then reduce gas shock volute tongue bring noise.

Further, fixed by dowel 212 between the second axis 211 and plate body 21, the effect of dowel 212 is on the one hand For connecting plate body 21 and the second axis 211, on the other hand also has the function of limit, as shown in Fig. 2, the second axis 211 penetrates axis When hole 112, dowel 212 can prevent the second axis 211 to be pierced by axis hole 112 and avoid the second axis 211 front and back in axis hole 112 It is mobile.It should be noted that when the second axis 211 is a long axis, at this time due to the setting of dowel 212, the second axis 211 and plate There is certain gap, this time hole 4 is formed by the gap between plate body 21 and first axle 211 between body 21.

Further, dowel 212 is set to the end of the second axis 211, suitable for the second axis 211 to be limited in axis hole 112. Dowel 212 is set to the end of the second axis 211, can fail to be entirely insertable in axis hole 112 to avoid the second axis 211, reduces snail The bonding strength of tongue ontology 1 and adjustment portion 2, while having an effect on beauty.It should be noted that first axle 111 and the second axis 211 When quantity is equal, since first axle 111 is corresponding with the quantity of axis hole 112, the second axis 211 is opposite with the quantity of dowel 212 It answers, therefore first axle 111, the second axis 211, the quantity of axis hole 112 and dowel 212 are equal, is n, the range of n is 1-300. The quantity of n is more, and the length in hole 4 and interval are smaller, more uniform, better to the improvement of noise reduction.

Preferably, volute tongue ontology 1 includes the first wind-guiding section 11 and the second wind-guiding section 12, the first wind-guiding section 11 and the second wind-guiding There is angle, the first wind-guiding section 11 and the wind wheel 5 of air conditioner are oppositely arranged, the first wind-guiding section 11 and the second wind-guiding section between section 12 12 bending plates being integrally formed, the first wind-guiding section 11 are connect with adjustment portion 2, end the going out to air conditioner of the second wind-guiding section 12 Air port direction extends, and the air-flow suitable for generating wind wheel 5 drains into air outlet.

Gap between volute tongue and wind wheel is too small, can obviously increase the eddy current crack of air-flow generation, but volute tongue and wind wheel Between gap it is excessive, easily cause return air to increase under the wind wheel slow-speed of revolution, therefore, the present invention be arranged the first wind-guiding section so that into Enter the air-flow Q2 between volute tongue and wind wheel and first passes through changeover portion between the first wind-guiding section and wind wheel, gas velocity with higher Degree, then enters the diffuser between adjustment portion and wind wheel, and the velocity variations of air-flow Q2 are more obvious.In addition, setting first is led Wind section is equivalent to the width dimensions for reducing adjustment portion, and then is conducive to increase the adjustable range of adjustment portion.Wherein, so-called tune The width dimensions in section portion refer to the size of the left and right directions under orientation shown in Fig. 2.

Further, be additionally provided with multiple micropores in the first wind-guiding section 11 and/or adjustment portion 2, being provided with of micropore be conducive to from The air-flow Q4 impact air-flow Q2 that heat exchanger side enters reduces noise to reduce impact force when air-flow Q2 and air-flow Q3 meets.

The diameter of second axis 211 is equal with the diameter of axis hole 112, and the second axis 211 is inserted into axis hole 112, and can be in axis hole Rotation in 112 the angle between adjustment portion 2 and the first wind-guiding section 11 to be adjusted, and then is adjusted between volute tongue and wind wheel 5 Gap.Here it should be understood that the rotation to plate body 21 may be implemented by the friction between the second axis 211 and axis hole 112 The fixation that indexing is set fixes the rotation of plate body 21 to realize.

Preferably, volute tongue further includes locating piece 3 in the present invention, suitable for the rotation position in secured adjusted portion 2, to improve volute tongue Job stability.

Further, locating piece 3 includes telescopic rod, and one end of telescopic rod is fixed on volute tongue ontology, telescopic rod it is another End is fixed in adjustment portion 2.By rotate plate body 21, so that telescopic rod elongates or shortens, and then to postrotational plate body 21 It sets and is fixed.Limit after realizing the elongating or shortening and is flexible of telescopic rod is the prior art, in guarantor of the invention Within the scope of shield, details are not described herein.

Except this, the present invention also provides a kind of preferred embodiments, and as shown in Fig. 3,8,12, locating piece 3 includes being set to snail Hollow stem 31 on tongue ontology and the mobile bar in adjustment portion 2 32, outer diameter and the hollow stem 31 of mobile bar 32 Internal diameter is adapted, so that mobile bar 32 is inserted into hollow stem 31.The center line of hollow stem 31 is in the section of axis hole 112 The heart be the center of circle the first circular arc, the center line of mobile bar 32 be using the kernel of section of the second axis 211 as second circular arc in the center of circle, and The radius of first circular arc is identical as the radius of the second circular arc, is R.Due to the diameter phase of the diameter and axis hole 112 of the second axis 211 Deng, and the second axis 211 is located in axis hole 112, the axial line of the two is overlapped, therefore, as shown in figure 4, the first circular arc and the second circle The center of circle of arc is identical, the center line of hollow stem 31 and mobile bar 32 with radius on the circle of R.So set, can increase The range that adjustment portion 2 rotates angle generates better diffusion effect in order to obtain optimal gap size.

The shape of hollow stem 31 and mobile bar 32 can be circular, or rectangular with no restriction.In the present invention It is preferred that hollow stem 31 is the hollow square bar of arc, mobile bar 32 is arc square bar.

Further, as shown in fig. 7, being also provided with screw hole 311 on the side wall of hollow stem 31, when adjustment portion 2 rotates extremely When a certain position, by bolts through bolt holes 311 and screw is tightened, active force is applied to mobile bar 32, mobile bar 32 is consolidated It is scheduled in hollow stem 31.Using the limit method that screw-driving is fixed, relatively firm, high reliablity.

When work, a part is air-flow Q1 in the air-flow that the operating of wind wheel 5 drives, and is arranged from the second wind-guiding section 12 along air duct Out, some is air-flow Q2, and the gap between volute tongue and wind wheel 5 comes back on the inside of air duct, and air-flow Q2 is logical from gap It is out-of-date, the impact of air-flow Q4 is initially encountered, the speed V2 of air-flow Q2 is reduced, when then air-flow Q2 is continued through, due to adjusting The speed V2 of the setting in section portion 2, the gap enlargement between volute tongue and impeller, air-flow Q2 is further decreased, and is on the one hand greatly subtracted The small impact of air-flow Q2 and air-flow Q3, reduces noise, and the speed of another aspect air-flow Q2 reduces, it helps wind wheel 5 operates The air-flow of drive is more discharged from air outlet, to increase the air quantity of air conditioner.

The present invention also provides a kind of air channel structures, as shown in Figure 5,6, including volute tongue as described above, further include pedestal with And the wind wheel 5 being mounted on the base, the air outlet side of wind wheel 5 are equipped with volute tongue, adjustment portion 2 is oppositely arranged with wind wheel 5.When volute tongue sheet When body 1 has the first wind-guiding section 11, the first wind-guiding section 11 and adjustment portion 2 are opposite with wind wheel 5, and the second wind-guiding section 12 is suitable for wind The air-flow that wheel 5 generates is drained to air outlet.

The present invention also provides a kind of air conditioners, including air channel structure as described above or volute tongue as described above.

Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute Subject to the range of restriction.