CN114766803A - Air outlet structure and blower - Google Patents

Abstract

The invention discloses an air outlet structure and a blower, wherein the air outlet structure comprises a fan cover, an air outlet assembly and a driving assembly, the air outlet assembly is positioned in the fan cover, the air outlet assembly comprises a hub, a first fan blade group, a second fan blade group and a third fan blade group, the outer side of the hub and the inner side of the fan cover form an air outlet channel, the driving assembly drives the hub to rotate, the hub is provided with a heat dissipation inlet and a heat dissipation outlet, the heat dissipation outlet is distributed at the joint of the third fan blade group and the hub, and the heat dissipation outlet is communicated with the heat dissipation inlet and the air outlet channel; the blower comprises an air outlet structure. In the invention, the first fan blade group rotates to enable the air entering the air outlet channel from the air outlet to form airflow and convey the airflow forwards, the second fan blade group improves the air pressure of the airflow, and the third fan blade group forms the airflow from the air entering the heat dissipation inlet and guides the airflow into the air outlet channel, so that the noise of the air outlet mechanism is reduced, and the air volume and the air pressure of the air outlet structure are improved.

Description

Air outlet structure and blower

Technical Field

The invention relates to the technical field of air outlet structures, in particular to an air outlet structure and a blower.

Background

In the correlation technique, the dryer needs to set up higher rotational speed with demands such as full amount of wind, wind pressure, and the dryer is applied to electrical apparatus such as hairdryer, and the noise that electrical apparatus produced is big, the air-out speed is low, is unfavorable for using.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an air outlet structure which can improve air volume and reduce noise.

The invention also provides a blower with the air outlet structure.

According to the air-out structure of the first aspect embodiment of the invention, include:

the air conditioner comprises a fan cover, a fan cover and a fan, wherein an air outlet channel is formed in the fan cover, an air inlet and an air outlet are respectively formed in two ends of the fan cover, and the air inlet and the air outlet are both communicated with the air outlet channel;

the air outlet assembly is positioned in the fan housing and comprises a hub, a first fan blade group, a second fan blade group and a third fan blade group, the first fan blade group, the second fan blade group and the third fan blade group are sequentially connected to the outer surface of the hub at intervals along the direction of the air inlet towards the air outlet, and the outer side of the hub and the inner side of the fan housing form the air outlet channel;

drive assembly, wheel hub's inside is equipped with the heat dissipation wind channel, drive assembly is located in the heat dissipation wind channel, and be used for the drive wheel hub rotates, wheel hub orientation the one end of air intake has the heat dissipation import, wheel hub orientation one side of air-out passageway is equipped with the heat dissipation export, the heat dissipation export distribute in third blading with wheel hub's junction, the heat dissipation export with the heat dissipation import the air-out passageway intercommunication.

According to the air outlet structure provided by the embodiment of the invention, at least the following beneficial effects are achieved:

in the air outlet structure in the embodiment of the invention, the driving component provides power for the air outlet component, the first fan blade group rotates to enable the air entering the air outlet channel from the air outlet to form airflow and convey the airflow forwards, the second fan blade group improves the air pressure of the airflow, the third fan blade group forms airflow from the air inlet and guides the airflow into the air outlet channel, the air volume and the air pressure of the airflow in the air outlet channel are increased, and the driving component in the heat dissipation air channel can dissipate heat when the airflow flows through the heat dissipation air channel, so that on the basis of realizing the same air output, the rotating speed of the air outlet component is lower, the noise of the air outlet mechanism is reduced, and the air volume and the air pressure of the air outlet structure can be improved.

According to some embodiments of the invention, a first mounting boss and a second mounting boss are arranged at one end of the hub facing the air outlet, the first mounting boss protrudes towards the fan cover relative to the second mounting boss, the second fan blade group is connected to the first mounting boss, the third fan blade group is connected to the second mounting boss, and an outer edge of the third fan blade group in the radial direction of the hub does not exceed an outer edge of the first mounting boss.

According to some embodiments of the invention, the hub includes a first mounting section and a second mounting section that are detachably connected, the first vane set is integrally connected with the first mounting section, the second vane set and the third vane set are both integrally connected with the second mounting section, and the first mounting boss and the second mounting boss are located at the second mounting section.

According to some embodiments of the invention, the fan further comprises a flow guide assembly, the flow guide assembly is located in the fan housing, the flow guide assembly comprises a fourth blade group and a mounting frame, the mounting frame is located at one end, facing the air outlet, of the hub, and the fourth blade group is connected to the outer wall of the mounting frame.

According to some embodiments of the invention, the air conditioner further comprises a fixing seat, the fixing seat is located in the air hood, the driving component and the air outlet component are both sleeved outside the fixing seat, and the fixing seat is hollow.

According to some embodiments of the present invention, the driving assembly includes a stator and a rotor, the rotor is sleeved on the periphery of the stator, the stator includes a base and a plurality of coils, the coils are distributed at intervals along the circumferential direction of the base and connected to the outer wall of the base, a heat dissipation channel is formed between adjacent coils, and the heat dissipation channel is communicated with the heat dissipation inlet and the heat dissipation outlet.

According to some embodiments of the present invention, the stator further includes two wire frames and a plurality of iron cores, the iron cores are distributed at the periphery of the base at intervals, the two wire frames are disposed at two sides of the base and are butted with each other, the iron cores are wrapped in the wire frames, and the coils are wound outside the wire frames.

According to some embodiments of the present invention, there is a gap between the stator and the rotor in a radial direction of the hub, and the gap forms a heat dissipation air duct, and the heat dissipation air duct is communicated with the heat dissipation inlet and the heat dissipation outlet.

According to some embodiments of the invention, the wind shield further comprises an end seat, one end of the wind shield is provided with an end cover, the end cover and the end seat are respectively located at two ends of the wheel hub, one end of the wheel hub is abutted against the end cover, and the other end of the wheel hub is connected with the end cover.

A hair dryer according to an embodiment of the second aspect of the present invention includes the air outlet structure of the embodiment of the first aspect.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention is further described with reference to the following figures and examples, in which:

fig. 1 is a schematic structural view of an air outlet structure according to an embodiment of the present invention;

fig. 2 is a sectional view of the air outlet structure in fig. 1;

fig. 3 is an exploded view of the air outlet structure of fig. 1;

FIG. 4 is a schematic flow diagram of the gas flow;

FIG. 5 is a cross-sectional view of one embodiment of a drive assembly of the present invention;

fig. 6 is a schematic structural view of an air outlet assembly according to an embodiment of the present invention;

fig. 7 is a schematic structural view of an embodiment of the second mounting section of the present invention.

Reference numerals:

the air hood 100, the air outlet channel 110, the air inlet 120, the air outlet 130, the end cover 140, the outer shell 150, the first shell 151, the second shell 152 and the support column 160; the fan comprises an air outlet assembly 200, a hub 210, a heat dissipation air duct 211, a heat dissipation inlet 212, a heat dissipation outlet 213, a first mounting boss 214, a second mounting boss 215, a first mounting section 216, a mounting hole 2161, a second mounting section 217, a mounting column 2171, a first fan blade group 220, a first fan blade 221, a second fan blade group 230, a second fan blade 231, a third fan blade group 240 and a third fan blade 241; the driving assembly 300, the stator 310, the base 311, the plurality of coils 312, the bobbin 313, the base 3131, the frame 3132, the second through groove 3133, the iron core 314, the first through groove 315, the rotor 320, the iron ring 321, the magnetic ring 322, the heat dissipation channel 330, the heat dissipation air channel 340, and the bearing 350; the guide assembly 400, the fourth blade group 410, the fourth blade 411, the mounting frame 420 and the fixing base 500; the end seat 600.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and the above, below, exceeding, etc. are understood as excluding the present numbers, and the above, below, within, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

In the description of the present invention, reference to the description of "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc., means 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 invention. In this specification, the schematic representations of the terms used above 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.

Referring to fig. 1 to 3, an embodiment of the present invention provides an air outlet structure, including a fan housing 100, an air outlet assembly 200, and a driving assembly 300, where the fan housing 100 has an air outlet channel 110 inside, two ends of the fan housing 100 are respectively provided with an air inlet 120 and an air outlet 130, the air inlet 120 and the air outlet 130 are both communicated with the air outlet channel 110, external air enters the air outlet channel 110 through the air inlet 120, and forms an air flow in the air outlet channel 110 and then is exhausted from the air outlet 130; the air outlet assembly 200 is located inside the fan housing 100, the air outlet assembly 200 includes a hub 210, a first blade set 220, a second blade set 230, and a third blade set 240, the first blade set 220, the second blade set 230, and the third blade set 240 are all configured to generate an air flow, the first blade set 220, the second blade set 230, and the third blade set 240 are sequentially distributed at intervals along the direction from the air inlet 120 toward the air outlet 130 and are connected to the outer surface of the hub 210, a gap is formed between the outer side of the hub 210 and the inner side of the fan housing 100 to form the air outlet channel 110, the first blade set 220, the second blade set 230, and the third blade set 240 are all located in the air outlet channel 110, and different blade sets can generate an air flow in the air outlet channel 110.

The interior of the hub 210 is hollow, a heat dissipation air duct 211 is formed inside the hub 210, the driving assembly 300 is installed in the heat dissipation air duct 211 and is used for driving the hub 210 to rotate, and when the hub 210 rotates, the first fan blade group 220, the second fan blade group 230 and the third fan blade group 240 rotate synchronously and generate air flow; in addition, a heat dissipation inlet 212 is disposed at one end of hub 210 facing air inlet 120, a heat dissipation outlet 213 is disposed at one side of hub 210 facing air outlet channel 110, heat dissipation outlet 213 is distributed at a connection between third vane set 240 and hub 210, and heat dissipation outlet 213 is communicated with heat dissipation inlet 212 and air outlet channel 110; as shown in fig. 4, the external air may enter the heat dissipation air duct 211 through the heat dissipation inlet 212, and through the rotation of the third fan blade set 240, the air enters the air outlet channel 110 from the heat dissipation outlet 213, joins with the air flow formed by the first fan blade set 220 and the second fan blade set 230, and is exhausted from the air outlet 130 together.

Therefore, in the air outlet structure in the embodiment of the present invention, the driving assembly 300 provides power to the air outlet assembly 200, the first fan set 220 rotates to make the air entering the air outlet channel 110 from the air outlet 130 form an air flow and convey the air flow forwards, the second fan set 230 increases the air pressure of the air flow, the third fan set 240 forms the air flow from the air inlet 212 and guides the air flow into the air outlet channel 110, so as to increase the air volume and the air pressure of the air flow in the air outlet channel 110, and when the air flow flows through the air duct 211, the driving assembly 300 in the air duct 211 can dissipate heat, so that on the basis of realizing the same air volume, the rotation speed of the air outlet assembly 200 is lower, the noise of the air outlet mechanism is reduced, and the air volume and the air pressure of the air outlet structure can be increased.

It should be noted that the first fan blade set 220 includes a plurality of first fan blades 221, the second fan blade set 230 includes a plurality of second fan blades 231, the third fan blade set 240 includes a plurality of third fan blades 241, and the plurality of first fan blades 221, the plurality of second fan blades 231, and the plurality of third fan blades 241 are all arranged at intervals along the circumferential direction of the hub 210. In addition, the first fan blade 221 and the second fan blade 231 may be selected as axial flow fan blades or diagonal flow fan blades, so that the first fan blade 221 and the second fan blade 231 may supply air forward to increase wind pressure, the third fan blade 241 may be selected as a centrifugal fan blade, and by rotation of the third fan blade 241, airflow flowing along the direction of the air inlet 120 toward the air outlet 130 initially turns at the heat dissipation outlet 213 under the guidance of the third fan blade 241, flows along the radial direction of the hub 210, and enters the air outlet channel 110 from the heat dissipation outlet 213.

Moreover, since the hub 210 is located inside the fan housing 100, one end of the fan housing 100 close to the air outlet 130 protrudes relative to one end of the hub 210 facing the air outlet 130, so that the airflow in the heat dissipation air duct 211 can be guided by the airflow formed by the rotation of the first fan blade set 220, that is, when the hub 210 drives the first fan blade set 220 to rotate, the air outside the fan housing 100 simultaneously enters the air outlet channel 110 from the air inlet 120 and enters the heat dissipation air duct 211 from the heat dissipation inlet 212, which is beneficial to increasing the air speed.

As shown in fig. 7, a first mounting boss 214 and a second mounting boss 215 are disposed at an end of the hub 210 facing the air outlet 130, the first mounting boss 214 protrudes toward the fan housing 100 relative to the second mounting boss 215, the second mounting boss 215 is connected to an end of the first mounting boss 214 facing the air outlet 130, the first vane set 220 is connected to an outer wall of the first mounting boss 214, and the third vane set 240 is connected to an outer wall of the second mounting boss 215, so that the airflow discharged from the heat dissipation outlet 213 is driven by the airflow in the air outlet channel 110 to turn and flows along an axial direction of the hub 210 together due to the first mounting boss 214 being higher than the second mounting boss 215, thereby facilitating guiding the centrifugal airflow.

Further, in one embodiment, the outer edge of the third vane group 240 does not exceed the outer edge of the first mounting boss 214, where the outer edge refers to the outer edge of the third vane group 240 and the first mounting boss 214 in the radial direction of the hub 210. On one hand, after the airflow formed by the third blade set 240 enters the air outlet channel 110, the airflow is guided by the airflow in the air outlet channel 110 and flows towards the air outlet 130, so that the turbulence and noise in the air outlet channel 110 are reduced, and the air pressure can be increased; on the other hand, the shielding of the third vane set 240 and the first vane set 220 and the second vane set 230 is reduced, and the influence of the third vane set 240 on the air outlet of the first vane set 220 and the second vane set 230 is avoided, so that the wind pressure is reduced.

As shown in fig. 6, the heat dissipation outlet 213 is located between the adjacent third blades 241, and when the hub 210 rotates, the airflow at the heat dissipation outlet 213 is thrown into the air outlet channel 110 by the third blades 241.

As shown in fig. 3, the hub 210 includes a first mounting section 216 and a second mounting section 217 detachably connected, a first vane group 220 integrally connected to the first mounting section 216, a second vane group 230 and a third vane group 240 integrally connected to the second mounting section 217, and a first mounting boss 214 and a second mounting boss 215 both located on the second mounting section 217. On the one hand, be convenient for processing, reduce the processing cost, on the other hand, because fan blade group and first installation section 216 or second installation section 217 body coupling need not the assembly between fan blade group and the wheel hub 210, the assembly convenience is high. It should be noted that, in other embodiments, the hub 210 may also be divided into three sections, that is, the first vane group 220, the second vane group 230, and the third vane group 240 are respectively mounted on one section of the hub 210, and are assembled to form the air outlet assembly 200.

Further, the first mounting section 216 and the second mounting section 217 are inserted into each other along the axial direction of the hub 210, so as to achieve the assembly of the two. Specifically, in one embodiment, a plurality of mounting holes 2161 are formed in one side of the first mounting section 216 facing the second mounting section 217, the plurality of mounting holes 2161 are distributed at intervals along the circumferential direction of the first mounting section 216, a plurality of mounting posts 2171 are protrudingly formed in one side of the second mounting section 217 facing the first mounting section 216, the plurality of mounting posts 2171 are distributed at intervals along the circumferential direction of the second mounting section 217, the number and the shape of the mounting posts 2171 are matched with those of the mounting holes 2161, and after the mounting posts 2171 are inserted into the mounting holes 2161, the first mounting section 216 and the second mounting section 217 are butted and assembled, and the mutual limiting of the first mounting section 216 and the second mounting section 217 in the circumferential direction of the hub 210 is realized, so that the first mounting section 216 and the second mounting section can rotate synchronously under the driving of the driving assembly 300.

As shown in fig. 2 and fig. 4, the air outlet structure further includes a flow guiding assembly 400, the flow guiding assembly 400 is located in the fan housing 100, the flow guiding assembly 400 includes a fourth blade group 410 and a mounting frame 420, the fourth blade group 410 is connected to an outer wall of the mounting frame 420, the mounting frame 420 is located at one end of the hub 210 facing the air outlet 130, and through a flow guiding effect of the fourth blade group 410, the air flow in the air outlet channel 110 is discharged from the air outlet 130 along an axial direction of the hub 210. It should be noted that the fourth blade set 410 includes a plurality of fourth blades 411, the plurality of fourth blades 411 are distributed at intervals along the circumferential direction of the mounting frame 420, the mounting frame 420 does not rotate along with the hub 210, the flow guide assembly 400 is in a stationary state when the hub 210 rotates, and the fourth blade set 410 pressurizes and supplies air to the air flow in the air outlet channel 110 along the axial direction of the hub 210.

In addition, as shown in fig. 2, the air outlet structure further includes a fixing seat 500, the fixing seat 500 is located in the air hood 100, the driving component 300 and the air outlet component 200 are both sleeved outside the fixing seat 500, and the fixing seat 500 is hollow. When the hub 210 rotates, the first vane set 220 drives the air outside the fan housing 100 to enter the fan housing 100, and driven by the airflow in the fan housing 100, a part of the air enters the fixing base 500 and is discharged from the end of the fixing base 500 close to the air outlet 130, so as to increase the air output of the air outlet structure.

Specifically, the driving assembly 300 and the guiding assembly 400 are sleeved outside the fixing base 500, the air outlet assembly 200 is sleeved outside the driving assembly 300, when the hub 210 rotates, the fixing base 500 and the guiding assembly 400 are in a static state, air outside the fan housing 100 passively enters the fixing base 500 under the driving of air flow in the air outlet channel 110, and air flow discharged from the fixing base 500 and air flow discharged from the air outlet 130 converge, so that the air outlet amount of the air outlet structure can be increased.

The drive assembly 300 may be a power unit such as a rotating electrical machine, a motor, etc. In order to facilitate heat dissipation of the driving assembly 300 and ensure the smoothness of the heat dissipation air duct 211, as shown in fig. 5, in an embodiment of the invention, the driving assembly 300 includes a stator 310 and a rotor 320, the rotor 320 is sleeved on the outer periphery of the stator 310, the stator 310 includes a base 311 and a plurality of coils 312, the coils 312 are spaced apart along the circumference of the base 311 and connected to the outer wall of the base 311, a heat dissipation channel 330 is formed between adjacent coils 312, and the heat dissipation channel 330 is communicated with the heat dissipation inlet 212 and the heat dissipation outlet 213.

After the driving assembly 300 is powered on, the coil 312 is powered on to generate a magnetic field, which drives the stator 310 to rotate, and the air outlet assembly 200 is sleeved on the outer surface of the rotor 320 and rotates along with the rotation of the rotor 320. Because the heat dissipation channel 330 is arranged between the adjacent coils 312, the air flow entering the heat dissipation air duct 211 from the heat dissipation inlet 212 passes through the heat dissipation channel 330 and is discharged from the heat dissipation outlet 213, and because the heat dissipation channel 330 is arranged between the adjacent coils 312, on one hand, the whole space of the channel is large, the air flow can pass through quickly, on the other hand, when the air flow passes through the heat dissipation channel 330, the heat generated by the work of the coils 312 can be taken away, the heat dissipation and the cooling of the driving assembly 300 are realized, the air outlet temperature of the air outlet structure can be increased, and the power of a heating element in the air outlet structure is favorably reduced.

The rotor 320 includes an iron ring 321 and a magnetic ring 322, the iron ring 321 is sleeved outside the magnetic ring 322, the hub 210 is sleeved outside the iron ring 321 and tightly fits with the iron ring 321, and the magnetic ring 322 rotates under the action of the magnetic field generated by the coil 312. The stator 310 comprises two wire frames 313 and a plurality of iron cores 314, the iron cores 314 are distributed on the periphery of the base 311 at intervals, the two wire frames 313 are arranged on two sides of the base 311 and are mutually butted, the iron cores 314 are wrapped inside the wire frames 313 to avoid magnetization of the iron cores 314, and the coil 312 is wound outside the wire frames 313 and used for increasing the magnetic field intensity generated by the stator 310.

Specifically, the two bobbins 313 are butted against each other along the axial direction of the hub 210, so that the bobbins 313 and the iron core 314 are assembled conveniently, and the iron core 314 can be completely coated. As shown in fig. 3, each bobbin 313 includes a base 3131 and a plurality of frames 3132 connected to the outer periphery of the base 3131, the frames 3132 are arranged at intervals, one frame 3132 is inserted between adjacent iron cores 314, each iron core 314 is covered by two opposite frames 3132, the inside of each frame 3132 is hollow, and each coil 312 is wound around the outer periphery of two adjacent frames 3132; be provided with first logical groove 315 between adjacent iron core 314, the outside of support body 3132 sets up second through groove 3133, and support body 3132 inserts back between the adjacent electric core, and first logical groove 315, second through groove 3133 intercommunication, the coil 312 of being convenient for is to support body 3132 interior wire winding.

In addition, as shown in fig. 5, a gap exists between the stator 310 and the rotor 320 in the radial direction of the hub 210, the gap forms a heat dissipation air duct 340, the heat dissipation air duct 340 is communicated with the heat dissipation inlet 212 and the heat dissipation outlet 213, and the air flow in the heat dissipation air duct 211 passes through the heat dissipation air duct 340 and the heat dissipation channel 330 at the same time, so as to increase the contact area between the air flow and the driving assembly 300, so that the heat dissipation efficiency of the driving assembly 300 is high, the air flow can cool the stator 310 and the rotor 320 at the same time, and the air output is increased.

As shown in fig. 2 and fig. 3, the air outlet structure further includes an end seat 600, an end cap 140 is disposed at one end of the wind shield 100, the end cap 140 and the end seat 600 are respectively located at two ends of the hub 210, one end of the hub 210 abuts against the end cap 140, and the other end of the hub 210 is connected to the end cap 140, so as to fix the hub 210 in the axial direction, and by disposing the end cap 140 at the end of the wind shield 100, a structure for axially positioning the hub 210 is provided, which facilitates assembly of the hub 210, the wind shield 100, and the end seat 600.

Specifically, along the axial direction of the hub 210, the end cap 140, the hub 210, the mounting bracket 420 and the end seat 600 are sequentially sleeved on the periphery of the fixing seat 500, the driving assembly 300 further includes two bearings 350, the two bearings 350 are respectively located on two sides of the hub 210, specifically, one of the bearings 350 is installed between the wire frame 313 and the end cap 140, the inner side of the bearing 350 is a fixed side, the outer side is a rotating side, the fixed side is sleeved on the fixing seat 500, the hub 210 is sleeved (the first installation section 216) on the rotating side, the bearing 350 is limited by the wire frame 313 and the end cap 140 in the axial direction of the hub 210, only the rotating side has a rotational degree of freedom, the other bearing 350 is installed between the wire frame 313 and the mounting bracket 420, the inner side of the bearing 350 is a fixed side, the outer side is a rotating side, the fixed side is sleeved on the fixing seat 500, the hub 210 (the second installation section 217) is sleeved on the rotating side, the bearing 350 is limited by the wire frame 313 and the mounting bracket 420 in the axial direction of the hub 210, only the rotational side has rotational freedom. The end seat 600 is mounted on one end of the mounting frame 420 facing the air outlet 130 by means of screw fastening, etc., so as to limit the hub 210, the bearing 350, and the driving assembly 300 in the axial direction.

It should be noted that the stator 310, the fixing seat 500, the fixing side of the bearing 350, the mounting frame 420, the fourth vane set 410, and the end seat 600 of the driving assembly 300 are all static elements, and after the driving assembly 300 is powered on, the rotor 320 rotates, the hub 210 connected to the rotating side of the bearing 350 rotates along with the rotor 320, and drives the first vane set 220, the second vane set 230, and the third vane set 240 to rotate synchronously. In addition, the bearing 350 near the air outlet 130 protrudes relative to the hub 210 toward the end surface of the air outlet 130, so that the mounting bracket 420 and the hub 210 have a gap in the axial direction, which facilitates the hub 210 to rotate relative to the mounting bracket 420.

As shown in fig. 1 and 4, the wind shield 100 includes an end cover 140 and a housing 150, the end cover 140 is connected to one end of the housing 150 close to the air inlet 120, the air outlet assembly 200 and the driving assembly 300 are both located in the housing 150, a plurality of support pillars 160 are connected between the end cover 140 and the housing 150, the support pillars 160 are arranged along the periphery of the end cover 140 at intervals, so as to improve the structural strength of the wind shield 100 and ensure that the end cover 140 can provide a stable limiting effect in the axial direction. The casing 150 includes a first casing 151 and a second casing 152, the first casing 151 and the second casing 152 are mutually butted to form the casing 150, the airflow guiding assembly 400 and the second casing 152 are integrally connected, so that the airflow guiding assembly 400 is conveniently assembled into the wind shield 100, the assembly convenience is high, the casing 150 is divided into two parts, the assembly of the driving assembly 300 and the air outlet assembly 200 into the wind shield 100 is not affected, and the air outlet structure has high assembly convenience.

The embodiment of the invention also provides a hair drier which comprises the air outlet structure and is used for improving the air volume and the air pressure of the hair drier, reducing noise and effectively improving the using effect of the hair drier. It should be noted that, the hair dryer can also set up heating element, and heating element can set up in air-out passageway 110, and heating element is used for heating the air current, and the hair dryer can also set up the handle, and integrated a plurality of control panels or buttons on the handle to adjust parameters such as wind speed, temperature of hair dryer, convenient to use.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

Claims (10)

1. Air-out structure, its characterized in that includes:

the air outlet channel is arranged in the fan cover, an air inlet and an air outlet are respectively arranged at two ends of the fan cover, and the air inlet and the air outlet are both communicated with the air outlet channel;

the air outlet assembly is positioned in the fan housing and comprises a hub, a first fan blade group, a second fan blade group and a third fan blade group, the first fan blade group, the second fan blade group and the third fan blade group are sequentially connected to the outer surface of the hub at intervals along the direction of the air inlet towards the air outlet, and the outer side of the hub and the inner side of the fan housing form the air outlet channel;

drive assembly, wheel hub's inside is equipped with the heat dissipation wind channel, drive assembly is located in the heat dissipation wind channel, and be used for the drive wheel hub rotates, wheel hub orientation the one end of air intake has the heat dissipation import, wheel hub orientation one side of air-out passageway is equipped with the heat dissipation export, the heat dissipation export distribute in third blading with wheel hub's junction, the heat dissipation export with the heat dissipation import the air-out passageway intercommunication.

2. The air outlet structure of claim 1, wherein a first mounting boss and a second mounting boss are provided at an end of the hub facing the air outlet, the first mounting boss protrudes toward the fan housing relative to the second mounting boss, the second vane group is connected to the first mounting boss, the third vane group is connected to the second mounting boss, and an outer edge of the third vane group in a radial direction of the hub does not exceed an outer edge of the first mounting boss.

3. The air outlet structure of claim 2, wherein the hub includes a first mounting section and a second mounting section that are detachably connected, the first vane group is integrally connected with the first mounting section, the second vane group and the third vane group are both integrally connected with the second mounting section, and the first mounting boss and the second mounting boss are located at the second mounting section.

4. The air outlet structure of claim 1, further comprising a flow guide assembly, wherein the flow guide assembly is located in the fan housing, the flow guide assembly comprises a fourth fan blade group and a mounting frame, the mounting frame is located at one end, facing the air outlet, of the hub, and the fourth fan blade group is connected to the outer wall of the mounting frame.

5. The air outlet structure of claim 1, further comprising a fixing seat, wherein the fixing seat is located in the air hood, the driving assembly and the air outlet assembly are both sleeved outside the fixing seat, and the fixing seat is hollow.

6. The air outlet structure of any one of claims 1 to 5, wherein the driving assembly includes a stator and a rotor, the rotor is sleeved on an outer periphery of the stator, the stator includes a base and a plurality of coils, the coils are distributed at intervals along a circumferential direction of the base and connected to an outer wall of the base, a heat dissipation channel is formed between adjacent coils, and the heat dissipation channel is communicated with the heat dissipation inlet and the heat dissipation outlet.

7. The air outlet structure of claim 6, wherein the stator further includes two wire frames and a plurality of iron cores, the iron cores are spaced apart from each other and distributed on the outer periphery of the base, the two wire frames are disposed on two sides of the base and are butted against each other, the iron cores are wrapped in the wire frames, and the coil is wound outside the wire frames.

8. The exhaust structure according to claim 6, wherein a gap exists between the stator and the rotor in a radial direction of the hub, the gap forms a heat dissipation air duct, and the heat dissipation air duct is communicated with the heat dissipation inlet and the heat dissipation outlet.

9. The air outlet structure of claim 1, further comprising an end seat, wherein an end cover is disposed at one end of the fan housing, the end cover and the end seat are respectively located at two ends of the wheel hub, one end of the wheel hub abuts against the end cover, and the other end of the wheel hub is connected with the end cover.

10. A hair dryer characterized by comprising the air outlet structure of any one of claims 1 to 9.

Images