CN219220837U - Volute, fan and air conditioner - Google Patents

Abstract

The utility model provides a volute, a fan and an air conditioner, wherein the volute comprises: the coaming is provided with an air duct; the end plate is connected to one end of the coaming, and is provided with an air inlet and a convex curved surface arranged around the air inlet; the convex curved surface is positioned on one side of the end plate, which is away from the air duct, and extends from the coaming to the air inlet. In practical application, the volute provided by the utility model can utilize the convex curved surface to guide the flow of the gas flowing to the air inlet, can adjust the attack angle of the gas flowing to the wind wheel, changes the inflow condition of the gas flowing into the volute, is beneficial to enabling the gas to smoothly flow to the wind wheel, weakens the impact of the gas on the air inlet end of the wind wheel, further reduces the running noise generated by the fan during use, and improves the user experience of products.

Description

Volute, fan and air conditioner

Technical Field

The utility model relates to the technical field of air conditioning equipment, in particular to a volute, a fan and an air conditioner.

Background

As the requirements of people on the air supply performance of air conditioning equipment are continuously improved, the static pressure performance level of a fan is also receiving more attention, and the fan shows a trend of developing to the directions of high static pressure and high air quantity. However, in practical application, some fans generate severe noise during operation, which seriously affects the sensory experience of users during use, resulting in poor user experience of products.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art or related art.

To this end, a first aspect of the utility model provides a volute.

A second aspect of the utility model provides a blower.

A third aspect of the present utility model provides an air conditioner.

In view of this, there is provided, according to a first aspect of an embodiment of the present application, a volute including:

the coaming is provided with an air duct;

the end plate is connected to one end of the coaming, and is provided with an air inlet and a convex curved surface arranged around the air inlet;

the convex curved surface is positioned on one side of the end plate, which is away from the air duct, and extends from the coaming to the air inlet.

In one possible embodiment, the end plate comprises:

one end of the first flow guiding section is connected with the coaming, the other end of the first flow guiding section extends towards the air inlet, and a first curved surface section is formed on one side of the first flow guiding section, which is away from the air duct;

the second flow guide section is connected with the first flow guide section, the air inlet is formed in the second flow guide section, a second curved surface section is formed on one side, deviating from the air duct, of the second flow guide section, and the second curved surface section extends to the inner side of the coaming;

the convex curved surface comprises a first curved surface section and a second curved surface section.

In one possible embodiment, the end plate further comprises:

the transition section is connected between the first flow guiding section and the second flow guiding section, a transition curved surface section is formed on one side, deviating from the air duct, of the transition section, two ends of the transition curved surface section are respectively connected with the first curved surface section and the second curved surface section, and the first curved surface section and the second curved surface section are in smooth transition with the transition curved surface section;

wherein the convex curved surface further comprises a transition curved surface segment.

In one possible embodiment, the ratio of chord height to chord length of each curved surface segment is less than or equal to 0.5.

In one possible embodiment, the height of the protrusions of the convex curved surface is greater than or equal to 10mm along the conducting direction of the air inlet.

In one possible embodiment, the volute further comprises:

the air-out water conservancy diversion spare is formed with the air outlet and the air-out passageway that are linked together, and the bounding wall is formed with the gas vent that communicates in the wind channel, and the air-out water conservancy diversion spare sets up in gas vent department, and the air-out passageway communicates in the wind channel through the gas vent.

In one possible embodiment, the coaming comprises at least two first plate-shaped parts, and the at least two first plate-shaped parts are sequentially connected along the circumferential direction of the air inlet so as to enclose an air channel;

the end plate comprises at least two second plate-shaped parts, each first plate-shaped part is connected with one second plate-shaped part, the second plate-shaped parts are provided with notches, and the at least two second plate-shaped parts are connected so that the at least two notches are butted to form an air inlet.

In one possible embodiment, the volute is a sheet metal volute or a plastic volute.

In one possible embodiment, the shroud is of unitary construction with the end plate.

According to a second aspect of embodiments of the present application, there is provided a fan, including:

a volute as set forth in any one of the above first aspects;

the wind wheel is rotationally arranged in the air duct and faces the air inlet.

According to a third aspect of an embodiment of the present application, there is provided an air conditioner, including:

a fan as claimed in any one of the above second aspects.

Compared with the prior art, the utility model at least comprises the following beneficial effects: the spiral case that this embodiment provided is including bounding wall and end plate, wherein, the bounding wall encloses and is equipped with the wind channel, the end plate is connected with the one end of bounding wall, and be formed with air intake and protruding curved surface, protruding curved surface is arranged around the air intake, and be located one side that the end plate deviates from the wind channel, protruding curved surface is extended to the direction of air intake by the bounding wall, the spiral case that this embodiment provided can regard as a part of fan, the wind wheel of fan can rotationally set up in the wind channel, the wind wheel can arrange with the air intake, based on the aforesaid setting of spiral case, in practical application, when the wind wheel rotates, can be through the wind channel with outside gas introduction of air intake, at the outside gas of spiral case to the in-process that the wind wheel flows, the gas of end plate nearby region can flow along aforesaid protruding curved surface, owing to protruding curved surface extends to the air intake direction, thereby protruding curved surface can play the direction effect to the gas flow to the wind wheel, the attack angle when can be adjusted gas flow to the wind wheel, the inflow condition when changing gas and get into the spiral case, be favorable to making gas comparatively flow to smoothly, weaken the impact effect to wind wheel air inlet end when the wind wheel, and then reduce the fan and experience the user that produces when using.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the exemplary embodiments. The drawings are only for purposes of illustrating exemplary embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

FIG. 1 is a schematic block diagram of a volute of one embodiment provided herein;

FIG. 2 is a schematic structural cross-sectional view of a volute of one embodiment provided herein;

FIG. 3 is a schematic structural cross-sectional view of an end plate of a volute of one embodiment provided herein;

FIG. 4 is a schematic block diagram of a first view of a blower of one embodiment provided herein;

FIG. 5 is a schematic block diagram of a second view of a blower of one embodiment provided herein;

FIG. 6 is a schematic block diagram of a third view of a blower of one embodiment provided herein.

The correspondence between the reference numerals and the component names in fig. 1 to 6 is:

10 volute; 20 wind wheels;

100 coaming plates; 200 end plates; 300 air-out guide piece;

110 a first plate-shaped portion; 210 a first flow directing section; 220 a second flow directing section; 230 transition section; 260 a second plate-shaped portion; 270 fastening portions;

101 air channels; 201 air inlets; 202 a convex curved surface; 301 air outlets;

2101 a first curved section; 2201 a second curved surface section; 2301 transition curve segment.

Detailed Description

Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

As shown in fig. 1 to 6, according to a first aspect of an embodiment of the present application, there is provided a volute 10 including: the coaming 100, the coaming 100 encloses an air channel 101; an end plate 200 connected to one end of the shroud 100, the end plate 200 being formed with an air inlet 201 and a convex curved surface 202 arranged around the air inlet 201; wherein, the convex curved surface 202 is located at one side of the end plate 200 facing away from the air duct 101, and the convex curved surface 202 extends from the shroud 100 to the air inlet 201.

The volute 10 provided by the embodiment of the application comprises the coaming 100 and the end plate 200, wherein the coaming 100 is surrounded with the air flue 101, the end plate 200 is connected with one end of the coaming 100, an air inlet 201 and a convex curved surface 202 are formed, the convex curved surface 202 is arranged around the air inlet 201 and is positioned on one side of the end plate 200, which is away from the air flue 101, the convex curved surface 202 extends from the coaming 100 to the direction of the air inlet 201, the volute 10 provided by the embodiment of the application can be used as a part of a fan, the wind wheel 20 of the fan can be rotatably arranged in the air flue 101, the wind wheel 20 can be arranged towards the air inlet 201, based on the arrangement of the volute 10, when the wind wheel 20 rotates in practical application, the air outside the volute 10 can be introduced into the air flue 101 through the air inlet 201, in the process of flowing towards the wind wheel 20 by the air outside the volute 10, the air in the area near the end plate 200 can flow along the convex curved surface 202, and the convex curved surface 202 extends towards the air inlet 201, so that the air flowing towards the wind wheel 20 can play a guiding role, the angle when the wind wheel 20 can be adjusted, the inflow condition when the air enters the wind wheel 20 is changed, the air inlet condition can be favorable, the air flowing into the wind wheel 20 can be favorably, the air flowing condition can be reduced, the air can be smoothly, the user can be more smoothly, and the user can experience when the wind 20 can be more impact the wind and the user can be more smoothly, and the user can be more easily, and the user can flow the user, and the air can be more conveniently, when the user, and the air can be more better, the user.

Meanwhile, in practical application, relatively dispersed gas distributed outside the volute 10 can be continuously collected in the process of flowing along the convex curved surface 202, and air flow with higher concentration degree is formed when flowing to the wind wheel 20, and the axial direction of the wind wheel 20 can be consistent with the conduction direction of the air inlet 201, so that the air flow can move for a longer distance along the axial direction of the wind wheel 20 more easily when flowing to the wind wheel 20 through the air inlet 201, the distribution width of the air flow in the axial direction of the wind wheel 20 is increased, the overall speed of the air flow after flowing out of blades of the wind wheel 20 is reduced, the backflow phenomenon at the air outlet end of the wind wheel 20 is lightened, the air impact at the air inlet end of the wind wheel 20 is further reduced, and the running noise of the fan is reduced.

It should be noted that, as shown in fig. 1, fig. 4 and fig. 5, the shroud 100 may have a plate structure extending in a spiral form to enclose the air duct 101, an axial end of the shroud 100 may be formed with an opening, an end plate 200 may be connected to the axial end of the shroud 100 to cover the opening, an air inlet 201 formed on the end plate 200 communicates with the air duct 101, a conducting direction of the air inlet 201 may be consistent with an axial direction of the shroud 100, in practical application, the axial end of the wind wheel 20 may be disposed towards the air inlet 201, the air duct 101 is located in a circumferential direction of the wind wheel 20, so that external air is introduced through the air inlet 201 when the wind wheel 20 rotates, and the air is discharged to the air duct 101, so that the air is accelerated and pressurized in the air duct 101.

It should be noted that, as shown in fig. 2, the end plate 200 may be raised relative to the shroud 100 along the axial direction of the shroud 100, so as to form the aforementioned convex curved surface 202 on the side of the end plate 200 facing away from the air duct 101, and it is understood that at least part of the aforementioned convex curved surface 202 protrudes relative to the end of the shroud 100 along the axial direction of the shroud 100; as shown in fig. 1, along the radial direction of the air inlet 201, one end of the convex curved surface 202 is connected to the shroud 100, that is, the outer edge of the convex curved surface 202 is connected to the axial end of the shroud 100, and the other end of the convex curved surface 202, that is, the inner edge of the convex curved surface 202 is located at the air inlet 201, and the two ends of the convex curved surface 202 extend smoothly in a curve manner, so that when the air flows through the convex curved surface 202, the air can be guided by the convex curved surface 202, smoothness of the air flowing is improved, impact of the air on the air inlet end of the wind wheel 20 is weakened, and further, operation noise generated when the fan is used is reduced.

It will be appreciated that, as shown in fig. 3, the two ends of the convex curved surface 202 extend smoothly in a curve, that is, in a cross section of the end plate 200 parallel to the direction of the air inlet 201, the contour of the convex curved surface 202 is a curve; the curve can be a continuous arc or elliptic arc or hyperbolic segment or parabolic segment or the like; alternatively, the curve may be formed of a plurality of line segments connected in sequence, at least one of the plurality of line segments is a curve segment, and as illustrated in fig. 3, the curve is formed of three line segments connected in sequence, and two curve segments are connected by one straight line segment, where the curve is formed of a plurality of line segments connected in sequence, a line segment near the air inlet 201 is a curve segment, and two adjacent line segments smoothly transition.

It should be noted that, as shown in fig. 2, the convex curved surface 202 and the coaming 100 may be smoothly transited, so as to improve smoothness of the gas flowing through the junction between the coaming 100 and the convex curved surface 202, reduce the possibility of forming local vortex at the junction, facilitate improving air inlet efficiency of the blower, and reduce the possibility of generating strong noise in the area near the end plate 200.

It should be noted that, as shown in fig. 2, the number of the end plates 200 may be two, and the two end plates 200 are respectively connected with two ends of the shroud 100, so that in practical application, gas outside the volute 10 may enter the air duct 101 through the air inlets 201 on the two end plates 200, so as to improve the air intake efficiency of the fan, and under the condition that the conducting direction of the air inlets 201 is consistent with the axial direction of the wind wheel 20, the gas may flow into the wind wheel 20 from two axial ends of the wind wheel 20, so as to be beneficial to further increasing the distribution width of the air flow in the axial direction of the wind wheel 20, so that the overall speed of the air flow flowing out of the blades of the wind wheel 20 is reduced, the backflow phenomenon at the air outlet end of the wind wheel 20 is reduced, and further the gas impact at the air inlet end of the wind wheel 20 is reduced, so as to reduce the running noise of the fan.

As shown in fig. 3, in some examples, the end plate 200 includes: the first diversion section 210, one end of the first diversion section 210 is connected to the coaming 100, the other end extends towards the air inlet 201, and a first curved surface section 2101 is formed on one side of the first diversion section 210, which is away from the air flue 101; the second diversion section 220 is connected to the first diversion section 210, the air inlet 201 is formed in the second diversion section 220, a second curved surface section 2201 is formed on one side of the second diversion section 220, which is away from the air duct 101, and the second curved surface section 2201 extends towards the inner side of the coaming 100; wherein convex curved surface 202 comprises a first curved surface segment 2101 and a second curved surface segment 2201.

In this embodiment, the end plate 200 may include a first flow guiding section 210 and a second flow guiding section 220, where two ends of the first flow guiding section 210 are respectively connected to the shroud 100 and the second flow guiding section 220, and the second flow guiding section 220 is formed with the air inlet 201, so that in practical application, air outside the volute 10 is introduced through the air inlet 201.

The first curved surface section 2101 and the second curved surface section 2201 are respectively formed on one side of the first flow guiding section 210 and one side of the second flow guiding section 220, which are away from the air duct 101, and the convex curved surface 202 comprises the first curved surface section 2101 and the second curved surface section 2201, wherein, based on the arrangement of the first flow guiding section 210, one section of the first curved surface section 2101 can be connected with the coaming 100, and the other end of the first curved surface section 2101 can be connected with the second curved surface section 2201, so that the arrangement of the first curved surface section 2101 is convenient for guiding the flow direction of the gas near the junction of the end plate 200 and the coaming 100 in practical application, the gas can more smoothly approach the air inlet 201, and the possibility of forming local vortex near the junction is reduced, thereby being beneficial to improving the air inlet efficiency of the fan and reducing the running noise of the fan; it can be appreciated that the air duct 101 is formed on the inner side of the shroud 100, so that the second curved surface section 2201 extends towards the inner side of the shroud 100, so that the air is smoothly guided to the air inlet 201 and introduced into the air duct 101 by the second curved surface section 2201, the attack angle of the air flowing to the wind wheel 20 is adjusted, the inflow condition of the air entering the volute 10 is changed, the air smoothly flows to the wind wheel 20, the impact of the air on the air inlet end of the wind wheel 20 is weakened, the running noise generated by the wind wheel when in use is reduced, and the user experience of a product is improved.

It should be noted that, as shown in fig. 3, in the cross section of the end plate 200 parallel to the direction of the air inlet 201, the profile of the first flow guiding section 210 may be a first curve section, and the first curve section may be, but is not limited to, an arc, an elliptical arc, a parabolic section, a hyperbolic section, or the like; in a cross-section of the end plate 200 parallel to the direction of the air inlet 201, the profile of the second flow guiding section 220 may be a second curve section, and the second curve section may be, but is not limited to, a circular arc, an elliptical arc, a parabolic section, a hyperbolic section, or the like. Meanwhile, the first curve section and the second curve section may be the same kind of curve, for example, the first curve section and the second curve section are both elliptical arcs, so that smooth transition between the first curved surface section 2101 and the second curved surface section 2201 is facilitated; the first curve section and the second curve section may also be different curves, for example, the first curve section is an arc, and the second curve section is an elliptical arc, so as to facilitate widening the curvature variation range of the convex curved surface 202, and improve the guiding effect of the convex curved surface 202 on the gas flow.

It is understood that the first deflector segment 210 and the second deflector segment 220 may be directly connected,

accordingly, the first curved surface segment 2101 and the second curved surface segment 2201 can be directly connected; other flow guiding sections can also be arranged between the first flow guiding section 210 and the second flow guiding section 220 so as to connect the first flow guiding section 210 and the second flow guiding section 220 through the other flow guiding sections, correspondingly, the first curved surface section 2101 and the second curved surface section 2201 can be indirectly connected, so that the transition smoothness between the first flow guiding section 210 and the second flow guiding section 220 is further improved, the transition smoothness between the first curved surface section 2101 and the second curved surface section 2201 is further improved, the guiding effect on gas is further improved, and in practical application, the gas impact on the air inlet end of the wind wheel 20 is reduced, and the running noise generated by a fan is further reduced.

As shown in fig. 3, in some examples, the end plate 200 further includes: the transition section 230 is connected between the first diversion section 210 and the second diversion section 220, a transition curved surface section 2301 is formed on one side of the transition section 230, which is far away from the air duct 101, two ends of the transition curved surface section 2301 are respectively connected to the first curved surface section 2101 and the second curved surface section 2201, and the first curved surface section 2101 and the second curved surface section 2201 are in smooth transition with the transition curved surface section 2301; wherein convex curved surface 202 further comprises transition surface segment 2301.

In this technical solution, the end plate 200 may further include a transition section 230 connected between the first flow guiding section 210 and the second flow guiding section 220, so that the first flow guiding section 210 may be indirectly connected to the second flow guiding section 220 through the transition section 230, a transition curved surface section 2301 is formed on a side of the transition section 230, which is away from the air duct 101, the first curved surface section 2101 and the second curved surface section 2201 may be connected through the transition curved surface section 2301, and the first curved surface section 2101 and the second curved surface section 2201 are both in smooth transition with the transition curved surface section 2301, so that based on the foregoing arrangement, the first curved surface section 2101 and the second curved surface section 2201 can be more smoothly transitioned, and further in the process of flowing the air along the convex curved surface 202, the flow direction change of the air with excessively large amplitude can be prevented, the possibility of occurrence of the air wall separation phenomenon is reduced, the smoothness of the air flow can be improved, the noise of the fan is reduced, the air flow loss is reduced, the efficiency of the fan is improved, and the air intake and the air volume and the performance of the fan are improved.

It should be noted that, the number of transition sections 230 may be more than one, the plurality of transition sections 230 are sequentially connected, at least one transition section is connected to the first flow guiding section 210, and at least one transition section is connected to the second flow guiding section 220, the transition curved surface section of the transition section connected to the first flow guiding section 210 is in smooth transition with the first curved surface section 2101, the transition curved surface section of the transition section connected to the second flow guiding section 220 is in smooth transition with the second curved surface section 2201, and the adjacent transition curved surface sections 2301 are in smooth transition, so that based on the arrangement of the plurality of transition sections 230, the smoothness of the convex curved surface 202 can be further improved, the flow guiding effect of the convex curved surface 202 on the gas is further improved, the impact of the gas on the air inlet end of the wind wheel 20 is further reduced, the running noise of the fan is further reduced, and the user experience of the product is improved.

It will be appreciated that the aforementioned smooth transition, i.e. the junction of two adjacent curved surface segments, is continuous in curvature.

As shown in fig. 3, in some examples, the ratio of chord height to chord length of each curved segment is less than or equal to 0.5.

In this technical solution, the ratio of the chord height to the chord length of each curved surface section may be set to be less than or equal to 0.5, and it may be understood that, as shown in fig. 3, the curved surface sections refer to the first curved surface section 2101, the transitional curved surface section 2301 and the second curved surface section 2201, in a cross section of the end plate 200 parallel to the direction of the air inlet 201, the profile of the curved surface section is a curved surface section, the chord height of each curved surface section refers to the chord height of the curved surface section corresponding to the curved surface section, and the chord length refers to the chord length of the curved surface section corresponding to the curved surface section, so that, based on the setting, the bending degree of each curved surface section in the conducting direction of the air inlet 201 can be constrained, so as to avoid the excessive bending degree of each curved surface section, and further, in the process that the air flows along the convex curved surface 202, the possibility of generating an excessively large amplitude of flow direction change can be prevented, the smoothness of the air wall separation phenomenon can be reduced, the air flow can be improved, the running noise of the fan can be reduced, the air flow loss can be increased, the air intake efficiency and the air intake performance and the static pressure of the fan can be improved.

It should be noted that, the ratio of the chord height H1 to the chord length L1 of the first curved surface segment 2101 is greater than 0, and the ratio of the chord height H3 to the chord length L3 of the second curved surface segment 2201 is greater than 0, so as to ensure that the first curved surface segment 2101 and the second curved surface segment 2201 have a certain degree of bending, and further, in practical application, guarantee can be provided for the flow guiding effect of the gas near the first curved surface segment 2101 and the second curved surface segment 2201; the ratio of the chord height to the chord length L2 of the transition curved surface section 2301 may be greater than or equal to 0, as shown in fig. 3, in the case where the ratio of the chord height to the chord length L2 of the transition curved surface section 2301 is equal to 0, the transition curved surface section 2301 is a plane, and two ends of the transition curved surface section 2301 are tangent to the first curved surface section 2101 and the second curved surface section 2201 respectively, so that smooth transition between the first curved surface section 2101 and the second curved surface section 2201 and the transition curved surface section 2301 is ensured, that is, the transition curved surface section 2301 may be a plane, so as to reduce the flow direction variation amplitude when the gas flows through the transition curved surface section 2301, and reduce the gas flow loss.

As shown in fig. 2, in some examples, the height H of the protrusion of the convex curved surface 202 is greater than or equal to 10mm along the conduction direction of the air inlet 201.

In this technical solution, along the conducting direction of the air inlet 201, the height H of the protrusion of the convex curved surface 202 may be greater than or equal to 10mm, and it may be understood that, as shown in fig. 2, one end of the end plate 200 is connected to the shroud 100, so that one end of the convex curved surface 202 is also connected to the shroud 100, and the height H of the protrusion is the maximum distance between the convex curved surface 202 and the end of the shroud 100 along the conducting direction of the air inlet 201, based on the foregoing arrangement, it is ensured that the convex curved surface 202 has a higher protrusion height, and thus the bending degree of the convex curved surface 202 is easy to be lifted, the flow guiding effect of the convex curved surface 202 on the gas flowing to the wind wheel 20 is enhanced, the angle of attack when the gas flows to the wind wheel 20 is adjusted, the inflow condition when the gas enters the volute 10 is changed, so that the gas flows smoothly to the wind wheel 20, the impact effect of the gas on the air inlet end of the wind wheel 20 is weakened, and the running noise generated when the wind turbine is used is further reduced, and the user experience of the product is improved.

In some possible examples, along the conducting direction of the air inlet 201, the height H of the protrusion of the convex curved surface 202 is greater than or equal to 10mm and less than or equal to 25mm, so that the overlarge bending degree of the convex curved surface 202 can be avoided, the overlarge flow direction change of gas generation amplitude is prevented, the possibility of gas wall separation phenomenon is reduced, the smoothness of gas flow can be improved, the noise of operation of a fan is reduced, the air flow loss is reduced, the air inlet efficiency of the fan is improved, the air quantity of the fan is increased, and the static pressure and the air quantity performance of the fan are improved.

As shown in fig. 1, 4-6, in some examples, the volute 10 further includes: the air-out water conservancy diversion spare 300 is formed with the air outlet 301 and the air-out passageway that communicate, and bounding wall 100 is formed with the gas vent that communicates in wind channel 101, and air-out water conservancy diversion spare 300 sets up in gas vent department, and the air-out passageway communicates in wind channel 101 through the gas vent.

In this technical scheme, spiral case 10 can also be including air-out water conservancy diversion spare 300, bounding wall 100 can be formed with the gas vent, the gas vent is linked together with wind channel 101, thereby the gas in the wind channel 101 can be led out through the gas vent, air-out water conservancy diversion spare 300 is located gas vent department, and be formed with air outlet 301 and air-out passageway, air outlet 301 is linked together with the air-out passageway, the one end that air outlet 301 was kept away from to the air-out passageway is linked together with aforementioned gas vent, thereby the gas can flow into the air-out passageway through the gas vent, and flow out air outlet 301 under the restraint of air-out water conservancy diversion spare 300, so as to realize the external air supply of fan in practical application, and based on the setting of air-out water conservancy diversion spare 300, spiral case 10 can guide the flow of gas when the air vent, and then the smoothness when promoting the gas and flowing out spiral case 10 improves the air-out efficiency of fan, be favorable to reinforcing the static pressure and wind capacity performance of fan, and reduce the noise in air outlet 301 department, promote the user experience of product.

It can be appreciated that the air-out guide 300 is connected with the coaming 100, and the air-out guide 300 can be integrated with the coaming 100, so as to reduce the connection gap between the air-out guide 300 and the coaming 100 and improve the connection strength between the air-out guide 300 and the coaming 100; the air-out guide 300 may be connected to the shroud 100 by screwing, riveting, welding, or the like.

As shown in fig. 1 and 2, in some examples, the shroud 100 includes at least two first plate-shaped portions 110, and the at least two first plate-shaped portions 110 are sequentially connected in a circumferential direction of the air intake 201 to enclose the air duct 101; the end plate 200 includes at least two second plate-shaped portions 260, one second plate-shaped portion 260 is connected to each first plate-shaped portion 110, the second plate-shaped portion 260 is formed with a notch, and at least two second plate-shaped portions 260 are connected such that at least two notches are butted to form the air inlet 201.

In this technical solution, the shroud 100 may include at least two first plate portions 110, the end plate 200 may include at least two second plate portions 260, the first plate portions 110 are sequentially connected along the circumferential direction of the air inlet 201, so as to enclose the air duct 101, each first plate portion 110 is connected with one second plate portion 260, the second plate portions 260 are formed with notches, and under the condition that the at least two first plate portions 110 are connected, the corresponding at least two second plate portions 260 may be connected with each other, so that the at least two notches are butted to form the air inlet 201, based on the foregoing arrangement, the volute 10 may be modularized, and further in the process of manufacturing the volute 10, the processing difficulty of the shroud 100 and the end plate 200 may be reduced, and the processing difficulty and the processing efficiency of the volute 10 may be improved by assembling the first plate portions 110 and the second plate portions 260 in an assembling manner, so as to form the volute 10.

It will be appreciated that where the end plate 200 includes the aforementioned first and second deflector segments 210, 220, each second plate-shaped portion 260 may include a portion of the first deflector segment 210 and a portion of the second deflector segment 220 to interface to form a complete first deflector segment 210 and second deflector segment 220 when at least two second plate-shaped portions 260 are connected; similarly, where the end plate 200 includes the aforementioned transition section 230, each second plate-shaped portion 260 may include a portion of the transition section 230 to interface to form a complete transition section 230 when at least two second plate-shaped portions 260 are connected.

In some possible examples, as shown in fig. 1 and 2, the volute 10 may further include a fastening portion 270, where the fastening portion 270 is disposed on the second plate-shaped portion 260, and two adjacent second plate-shaped portions 260 may be connected by the fastening portion 270, so as to improve the connection strength between two adjacent second plate-shaped portions 260, and improve the structural stability and reliability of the volute 10; it is understood that the fastening portion 270 may include a buckle and a clamping groove, the buckle is disposed on one of the two adjacent second plate-shaped portions 260, the clamping groove is formed on the other of the two adjacent second plate-shaped portions 260, and the buckle may be clamped in the clamping groove, so as to achieve the fastening connection between the two adjacent second plate-shaped portions 260.

In some examples, the volute 10 is a sheet metal volute or a plastic volute.

In this technical scheme, spiral case 10 can adopt the panel beating spiral case, and the sheet metal component generally has better shaping precision, is convenient for at the in-process of preparation spiral case 10, forms the aforesaid convex curved surface 202 that dimensional accuracy is higher in one side of end plate 200, and then guarantees the flow direction effect to gas, improves the operation noise condition of spiral case 10 belonged to the fan, promotes the user's of product and uses experience to the panel beating spiral case can have higher structural strength, is favorable to prolonging spiral case 10's life, reduces spiral case 10 and takes place the possibility of structural failure.

Or, the spiral case 10 can adopt the plastics spiral case, plastic materials processability is better, easy processing shaping, the plastics spiral case can have higher surface accuracy, and then be favorable to forming the aforesaid convex curved surface 202 that smoothly extends, can guarantee the flow direction effect to gas, improve the operation noise condition of the fan that spiral case 10 belongs to, promote the user's of product and use experience, and the density of plastics spiral case is lower relatively, can improve the lightweight level of spiral case 10 and fan, be convenient for carry out the assembly and the installation of fan in practical application.

In some examples, the shroud 100 is of unitary construction with the end plate 200.

In the technical scheme, the coaming 100 and the end plate 200 can be arranged to be of an integrated structure, so that the coaming 100 and the end plate 200 can be processed in an integrated forming manner in the process of manufacturing the volute 10, on one hand, the seam between the coaming 100 and the end plate 200 can be reduced, the possibility of gas circulation through the seam is reduced, the operation efficiency of a fan to which the volute 10 belongs is improved, and the operation noise generated by the fan is further reduced; on the other hand, the assembly process of the volute 10 can be simplified, the manufacturing efficiency of the volute 10 is improved, and the processing cost and the use cost of the volute 10 are reduced.

It should be noted that, in the case where the shroud 100 includes at least two first plate-shaped portions 110 and the end plate 200 includes at least two second plate-shaped portions 260, the first plate-shaped portions 110 and the second plate-shaped portions 260 may be configured as an integral structure, so that the seam between the shroud 100 and the end plate 200 may be reduced, the possibility of gas flowing through the seam may be reduced, which is beneficial to improving the operation efficiency of the fan to which the volute 10 belongs, and meanwhile, the assembly process of the volute 10 may be simplified, the manufacturing efficiency of the volute 10 may be improved, and the processing cost and the use cost of the volute 10 may be reduced.

As shown in fig. 4 to 6, according to a second aspect of the embodiment of the present application, there is provided a fan, including: a volute 10 as set forth in any one of the above first aspects; the wind wheel 20 is rotatably arranged in the air duct 101, and the wind wheel 20 is arranged towards the air inlet 201.

The embodiment of the present application provides a fan including a wind wheel 20 and a volute 10 set forth in any one of the first aspect, where the wind wheel 20 is disposed in an air duct 101 of the volute 10 and can rotate relative to the volute 10, and the wind wheel 20 is disposed towards an air inlet 201 of the volute 10, so that when the wind wheel 20 rotates, air outside the volute 10 can be introduced into the air duct 101 through the air inlet 201, in a process that air outside the volute 10 flows towards the wind wheel 20, air in a region near an end plate 200 can flow along the convex curved surface 202, and the convex curved surface 202 extends towards the air inlet 201, so that the convex curved surface 202 can play a role in guiding the flow of air flowing towards the wind wheel 20, the attack angle of the air flowing towards the wind wheel 20 can be adjusted, the inflow condition of the air flowing into the volute 10 is changed, the air can smoothly flow towards the wind wheel 20, the impact of the air on the air inlet end of the wind wheel 20 is weakened, and further, the running noise generated when the fan is used is reduced, and the user experience of the product is improved.

Meanwhile, in practical application, relatively dispersed gas distributed outside the volute 10 can be continuously collected in the process of flowing along the convex curved surface 202, and air flow with higher concentration degree is formed when flowing to the wind wheel 20, and the axial direction of the wind wheel 20 can be consistent with the conduction direction of the air inlet 201, so that the air flow can move for a longer distance along the axial direction of the wind wheel 20 more easily when flowing to the wind wheel 20 through the air inlet 201, the distribution width of the air flow in the axial direction of the wind wheel 20 is increased, the overall speed of the air flow after flowing out of blades of the wind wheel 20 is reduced, the backflow phenomenon at the air outlet end of the wind wheel 20 is lightened, the air impact at the air inlet end of the wind wheel 20 is further reduced, and the running noise of the fan is reduced.

It should be noted that, as shown in fig. 1, 4 and 5, the shroud 100 may have a plate structure extending in a spiral form to enclose the air duct 101, an axial end of the shroud 100 may be formed with an opening, an end plate 200 may be connected to the axial end of the shroud 100 to cover the opening, an air inlet 201 formed in the end plate 200 communicates with the air duct 101, a conduction direction of the air inlet 201 may be consistent with an axial direction of the shroud 100, an axial end of the wind wheel 20 may be disposed toward the air inlet 201, the air duct 101 is located in a circumferential direction of the wind wheel 20, so that external air is introduced through the air inlet 201 when the wind wheel 20 rotates, and the air is discharged to the air duct 101, so that the air is accelerated and pressurized in the air duct 101.

In some possible examples, the fan may further include a driving device, where the driving device is connected to the wind wheel 20 and is used to drive the wind wheel 20 to rotate, so that the rotation speed of the wind wheel 20 is adjusted by controlling the operation parameter of the driving device, and further, the air supply parameter regulation of the fan is achieved.

In addition, since the fan provided in the embodiment of the present application includes the volute 10 as set forth in any one of the first aspect, all the beneficial effects of the volute 10 are provided, and the description is omitted herein.

According to a third aspect of an embodiment of the present application, there is provided an air conditioner, including: a fan as claimed in any one of the above second aspects.

Because the air conditioner provided in the embodiment of the application includes the fan set forth in any one of the second aspect, all the beneficial effects of the fan are provided, and the details are not repeated here.

In the present utility model, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (11)

1. A volute, comprising:

the coaming is provided with an air duct in a surrounding mode;

the end plate is connected to one end of the coaming, and is provided with an air inlet and a convex curved surface arranged around the air inlet;

the convex curved surface is positioned on one side of the end plate, which is away from the air duct, and extends from the coaming to the direction of the air inlet.

2. The volute of claim 1, wherein the end plate comprises:

one end of the first flow guiding section is connected with the coaming, the other end of the first flow guiding section extends towards the air inlet, and a first curved surface section is formed on one side, deviating from the air duct, of the first flow guiding section;

the second flow guide section is connected with the first flow guide section, the air inlet is formed in the second flow guide section, a second curved surface section is formed on one side, deviating from the air duct, of the second flow guide section, and the second curved surface section extends to the inner side of the coaming;

the convex curved surface comprises the first curved surface section and the second curved surface section.

3. The volute of claim 2, wherein the end plate further comprises:

the transition section is connected between the first flow guiding section and the second flow guiding section, a transition curved surface section is formed on one side of the transition section, which is away from the air duct, two ends of the transition curved surface section are respectively connected with the first curved surface section and the second curved surface section, and the first curved surface section and the second curved surface section are in smooth transition with the transition curved surface section;

wherein the convex curved surface further comprises the transition curved surface section.

4. The volute of claim 3 wherein the flow path is configured to move the flow path from the inlet to the outlet,

the ratio of the chord height to the chord length of each curved surface section is less than or equal to 0.5.

5. The volute according to any one of claims 1 to 4, characterized in that,

and along the conduction direction of the air inlet, the height of the convex curved surface is more than or equal to 10mm.

6. The volute of any one of claims 1 to 4, further comprising:

the air-out water conservancy diversion spare is formed with the air outlet and the air-out passageway that are linked together, the bounding wall is formed with the intercommunication in the gas vent in wind channel, the air-out water conservancy diversion spare set up in gas vent department, the air-out passageway passes through the gas vent intercommunication in the wind channel.

7. The volute according to any one of claims 1 to 4, characterized in that,

the coaming comprises at least two first plate-shaped parts, and the at least two first plate-shaped parts are sequentially connected along the circumferential direction of the air inlet so as to enclose the air duct;

the end plate comprises at least two second plate-shaped parts, each first plate-shaped part is connected with one second plate-shaped part, a notch is formed in each second plate-shaped part, and at least two second plate-shaped parts are connected, so that at least two notches are in butt joint to form the air inlet.

8. The volute according to any one of claims 1 to 4, characterized in that,

the spiral case is panel beating spiral case or plastics spiral case.

9. The volute according to any one of claims 1 to 4, characterized in that,

the coaming and the end plate are of an integrated structure.

10. A blower, comprising:

a volute according to any one of claims 1 to 9;

the wind wheel is rotationally arranged in the air duct and is arranged towards the air inlet.

11. An air conditioner, comprising:

the blower of claim 10.

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