Air outflow component

Abstract

The present application provides an air outflow component, comprising: an outer ring portion, which is through in a front-back direction, wherein air enters from the back end of the outer ring portion and air exits from the front end of the outer ring portion, and the change amplitude of the diameter of the inner wall of the outer ring portion from back to front is less than 5 mm; an inner ring portion, coaxially arranged with the outer ring portion, wherein the inner ring portion is connected to the outer ring portion by means of a plurality of guide vanes, and the inner ring portion extends radially from back to front with a constant diameter; and a brake assembly, coaxially arranged with the outer ring portion, mounted at the back side of the inner ring portion, and radially accommodated at the inner side of the outer ring portion, wherein the brake assembly comprises fan blades and a motor, the fan blades comprise a wheel housing and a plurality of blades connected to the outer surface of the wheel housing, the plurality of blades are arranged at intervals around the wheel housing, the motor is arranged on the radial inner side of the wheel housing, and the difference between the maximum diameter of the wheel housing and the diameter of the inner ring portion is less than 5 mm.

Description

Air outlet component TECHNICAL FIELD

[0001] The present application relates to the fan technical field, in particular to an air outlet component with good air outlet effect. BACKGROUND

[0002] At present, the size of daily electronic products is increasingly reduced, and the size and portability of the air outlet component are also increasingly required. Although the conventional axial air outlet component has a large air volume, the air pressure of the axial air outlet component is generally small; the centrifugal air outlet component overcomes the problem of small air pressure, but the air volume is also relatively low. Both kinds of air outlet components cannot well balance the air pressure and air volume, and the air outlet effect is not good. Therefore, it is necessary to provide an improved scheme of the portable air outlet component. SUMMARY

[0003] The main purpose of the present application is to provide an air outlet component. Through the spatial layout of the front and rear through outer ring part, the coaxially arranged inner ring part and the brake assembly, and the small axial change range of the diameter of the inner wall of the outer ring part, the small difference between the maximum diameter of the wheel shell and the diameter of the inner ring part, the air outlet component can be miniaturized and portable, while ensuring the air volume and air outlet effect. BRIEF DESCRIPTION OF DRAWINGS

[0004] The embodiments of the present application will be described in conjunction with the accompanying drawings. The drawings of the present application are only used for describing the embodiments for the purpose of demonstration. Those skilled in the art can easily make other embodiments according to the steps described below without deviating from the principles of the present application.

[0005] Fig. 1 is a schematic view of the air outlet component of the present application;

[0006] Fig. 2 is a rear view of the air outlet component of the present application;

[0007] Fig. 3 is an enlarged view of part A in Fig. 2;

[0008] Fig. 4 is a sectional view of the air outlet component of the present application;

[0009] Fig. 5 is a schematic view of the brake assembly of the present application;

[0010] Fig. 6 is a right view of Fig. 5;

[0011] Fig. 7 is a schematic view of the air outlet component of the present application without the brake assembly;

[0012] Fig. 8 is a sectional view of the air outlet component of the present application;

[0013] Fig. 9 is a sectional view of the air outlet component of another embodiment of the present application;

[0014] Fig. 10 is a schematic view of the brake assembly of another embodiment of the present application;

[0015] Fig. 11 is an exploded view of a brake assembly according to another embodiment of the application; DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, rather than all the structures. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0017] The terms "first", "second", and the like in the present application are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0018] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily mutually exclusive of other embodiments. It is explicitly and implicitly understood that the embodiments described herein are capable of combination.

[0019] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or a middle element can be present at the same time.

[0020] In the present application, the description such as "first", "second", etc. is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features.

[0021] In the description of the present application, the terms "front", "back", "left", "right", "up", "down", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0022] In one embodiment, as shown in FIG. 1, FIG. 2 and FIG. 4, the outflow component of the present application is shown. The outflow component includes a cylinder and a braking assembly. The cylinder includes an outer ring 1, an inner ring 2, and a plurality of guide vanes 3 connecting the outer ring 1 and the inner ring 2. The outer ring 1 is through from front to back, with the back end for air intake and the front end for air outlet. The diameter of the inner wall of the outer ring 1 changes less than 5mm from back to front. The inner ring 2 is coaxially arranged with the outer ring 1, and the inner ring 2 and the outer ring 1 are connected by a plurality of guide vanes 3. The inner ring 2 extends radially without change from back to front. The braking assembly is coaxially arranged with the outer ring 1, and the braking assembly is installed on the back side of the inner ring 2 and is radially contained in the inner side of the outer ring 1. The braking assembly includes a fan blade 4 and a motor 5. The fan blade 4 includes a wheel shell 41 and a plurality of blades 42 connected to the outer surface of the wheel shell 41. A plurality of blades 42 are arranged around and spaced apart. The motor 5 is arranged on the radial inner side of the wheel shell 41. Wherein, the wheel shell 41 and the inner ring 2 are arranged side by side from front to back, and the maximum diameter of the wheel shell 41 and the diameter of the inner ring 2 differ less than 5mm.

[0023] Through the spatial layout of the outer ring 1 which is through from front to back, the inner ring 2 which is coaxially arranged with the outer ring 1, and the braking assembly, plus the small axial change of the diameter of the inner cavity of the outer ring 1, and the small difference between the maximum diameter of the wheel shell 41 and the diameter of the inner ring 2, the outflow component can be miniaturized and portable, while ensuring the air volume and air effect. It should be understood that the outflow component can be applied in portable fans such as neck hanging fans, handheld fans, desktop fans, floor fans, etc., without limitation by example.

[0024] In one embodiment, as shown in FIG. 1, FIG. 2 and FIG. 4, the diameter of the inner wall of the outer ring 1 is constant from back to front, and the diameter of the inner wall of the outer ring 1 is 51.76-55.76mm. The maximum diameter of the wheel shell 41 and the diameter of the inner ring 2 are equal, and the maximum diameter of the wheel shell 41 and the diameter of the inner ring 2 are both 30.5-34.5mm. The outer ring 1, the inner ring 2 and the wheel shell 41 are coaxially arranged, the inner ring 2 and the wheel shell 41 are arranged radially inside the outer ring 1, the diameter of the inner wall of the outer ring 1 is constant from front to back, the maximum diameter of the wheel shell 41 and the diameter of the inner ring 2 are equal, the air duct is through from front to back without obstruction, so the wind generated by the plurality of blades 42 can flow out smoothly. Moreover, the diameter of the inner wall of the outer ring 1 is 51.76-55.76mm, and the maximum diameter of the wheel shell 41 and the diameter of the inner ring 2 are both 30.5-34.5mm, so there is a remaining annular air duct of 17.26-25.26mm, the cross section of the air duct is large, and the air effect is good.

[0025] In one embodiment, as shown in FIG. 1, FIG. 2 and FIG. 4, the ratio of the outer diameter of the inner ring part 2 to the outer diameter of the outer ring part 1 is 0.5-0.61. It can be seen that in the outer ring part 1, except for the part of the inner ring part 2, there is nearly half of the air duct left, and the air duct cross section is large, and the air outlet effect is good.

[0026] In one embodiment, as shown in FIG. 1, FIG. 2 and FIG. 4, the inner ring part 2 is provided with a base plate 21, and a hollow shaft cylinder 22 extending rearward from the base plate 21. The inner ring part 2 is formed with a receiving part 23 on the front side of the base plate 21, which is used to accommodate a circuit board 6 and / or a display piece (not shown, the same below). When the receiving part 23 is provided with the display piece, the front end of the inner ring part 2 can be provided with a light-transmissive cover plate for displaying the data of the display piece outward. The data of the display piece includes but is not limited to wind speed gear and power, and when the switch of the air outlet part is a stepless speed regulating switch, the wind speed gear can correspond to 1-100 gears.

[0027] In one embodiment, as shown in FIG. 4 to FIG. 6, the motor 5 includes a stator assembly 51 and a rotor assembly 52, and the stator assembly 51, the rotor assembly 52 and the fan blade 4 are nested and fixed in the shaft cylinder 22. The rotor assembly 52 includes a rotating shaft 521, a bearing 522 and a magnetic ring 523, the rotating shaft 521 and the bearing 522 are inserted and fixed in the shaft cylinder 22, and the bearing 522 is located between the rotating shaft 521 and the shaft cylinder 22. The stator assembly 51 is fixedly arranged on the radial outer side of the shaft cylinder 22, the magnetic ring 523 is arranged on the radial outer side of the stator assembly 51, and the magnetic ring 523 is fixedly arranged on the radial inner side of the wheel shell 41. That is, the rotating shaft 521, the magnetic ring 523, the shaft cylinder 22, the stator assembly 51, the magnetic ring 523 and the wheel shell 41 are arranged in sequence from inside to outside in the radial direction, and the motor 5 in the form of an outer rotor has a reasonable space distribution and rotates more stably.

[0028] In one embodiment, as shown in FIG. 4 to FIG. 6, FIG. 9 and FIG. 10, the ratio of the axial length of the magnetic ring 523 to the axial length of the wheel shell 41 is 0.32-0.57. The axial length of the wheel shell 41 is relatively long, the magnetic ring 523 can be well accommodated in the inner side of the wheel shell 41, and the space in the inner side of the wheel shell 41 is reasonably utilized. In addition, the wheel shell 41 accommodating the magnetic ring 523 also has a longer supercharging distance accordingly.

[0029] In one embodiment, as shown in FIGS. 4-6, the motor 5 is a three-phase motor, which is characterized by three power lines and is powered by a three-phase power supply. In this embodiment, the stator assembly 51 includes a core 511 and coils 512, the core 511 includes nine tooth portions 5111, and the coils 512 are wound around the tooth portions 5111. The coils 512 have three wires leading out, which can extend out of the through holes of the base plate 21 to electrically connect with the circuit board 6 and / or display member accommodated in the accommodation portion 23, and the circuit board 6 and / or display member are electrically connected with an external power supply or a power supply member attached to the air outlet member through the wires, so that the external power supply or the power supply member can provide power to the motor 5. In this embodiment, the magnetic ring 523 has eight magnetic poles and four pole pairs.

[0030] In another embodiment, as shown in FIGS. 9-11, the motor 5 is a single-phase motor, which is characterized by one power line and one neutral line and is powered by an alternating current power supply. In this embodiment, the stator assembly 51 includes a core 511 and coils 512, the core 511 includes four tooth portions 5111, and the coils 512 are wound around the tooth portions 5111. The core 511 further includes a steel needle 5112, which is used to connect the circuit board 6. The circuit board 6 is arranged on one side of the shaft cylinder, and the steel needle 5112 is inserted and fixed to the circuit board 6. The circuit board 6 is electrically connected with an external power supply or a power supply member attached to the air outlet member through the wires, so that the external power supply or the power supply member can provide power to the motor 5. In this embodiment, the magnetic ring has four magnetic poles and two pole pairs.

[0031] In one embodiment, as shown in FIG. 2, FIG. 4 and FIG. 6, the wheel shell 41 comprises a rear end portion 411, an enlarged portion 412 radially increasing from the rear end portion 411, and a smooth portion 413 radially constant from the enlarged portion 412, the slope of the enlarged portion 412 decreases from rear to front, and the wheel shell 41 is similar to a bullet shape as a whole. The wheel shell 41 has the enlarged portion 412 radially increasing, so that the wind pressure can be increased, and because the slope of the enlarged portion 412 decreases, the wind pressure is not too large to generate a large noise. A plurality of the blades 42 are connected to the outer surface of the enlarged portion 412, so that the air inlet area is enlarged, the air suction capacity is enhanced, and the air inlet volume is increased. The airflow is guided and pressurized by the enlarged portion 412, and the pressurized airflow is smoothly guided forward by the smooth portion 413, so that the wind pressure is increased and the airflow is smooth. The smooth portion 413 is radially constant, so that the strong wind formed by the pressurization is smoothly blown out. The wheel shell 41 further comprises a fixing column 425 located at the center of the inner side, and the fixing column 425 is used for fixedly connecting the rotating shaft 521.

[0032] In one embodiment, as shown in FIG. 4, FIG. 6 and FIG. 9, the rear end of the stator assembly 51 does not exceed the rear end of the magnetic ring 523, the front end of the magnetic ring 523 does not exceed the front end of the smooth portion 413, and the rear end of the magnetic ring 523 exceeds the rear end of the smooth portion 413. In this embodiment, the magnetic ring 523 is completely arranged inside the wheel shell 41, and the front edge of the magnetic ring 523 is flush with the front edge of the wheel shell 41. The stator assembly 51 and the magnetic ring 523 are accommodated in the radially inner side of the smooth portion 413 and the radially inner side of a part of the enlarged portion 412, so that the internal space of the wheel shell 41 is reasonably utilized. In addition, as shown in FIG. 5, a plurality of convex ribs (not labeled, the same below) can be arranged at intervals around the inner wall of the wheel shell 41, and the magnetic ring 523 is abutted and fixed to the radially inner side of the plurality of convex ribs. The plurality of convex ribs can reduce errors and better press and fix the magnetic ring 523. In addition, the plurality of convex ribs or the adjacent convex ribs can be provided with dynamic balance materials, so as to ensure the dynamic balance of the fan blade 4 as a whole. Of course, as shown in FIG. 10, the inner wall of the wheel shell 41 can also not be provided with the convex ribs. It should be understood that in other embodiments, a casing can also be arranged between the magnetic ring 523 and the wheel shell 41 to ensure the strength between the structures.

[0033] In one embodiment, as shown in FIG. 4, FIG. 6 and FIG. 9, the axial length of the wheel shell 41 is 28.03-36.03 mm, the axial length of the enlarged portion 412 is 20.72-24.72 mm, and the axial length of the smooth portion 413 is 7.3-11.3 mm. The axial length of the enlarged portion 412 is long, which is conducive to enhancing the wind pressure. The axial length of the smooth portion 413 is relatively short, which is conducive to shortening the axial length of the air outlet component as a whole.

[0034] In one embodiment, as shown in FIG. 4, FIG. 6 and FIG. 9, the diameter of the rear end portion 411 is 6.37-12.71 mm, the diameter of the smooth portion 413 is 30.5-34.5 mm, and the diameter of the enlarged portion 412 is 6.37-30.5 mm. From the smaller diameter of the rear end portion 411, through the diameter change of the longer axial length of the enlarged portion 412, to the larger diameter of the smooth portion 413, the airflow smoothly flows and the potential energy is enhanced.

[0035] In one embodiment, as shown in FIG. 2, FIG. 4, FIG. 6, FIG. 8 and FIG. 9, each of the blades 42 includes a root portion 421 connected to the wheel shell 41, a tip portion 422 opposite to the root portion 421, a leading edge portion 423 connecting the root portion 421 and the tip portion 422, and a trailing edge portion 424 connecting the root portion 421 and the tip portion 422, the leading edge portion 423 and the trailing edge portion 424 are oppositely arranged. The length of the leading edge portion 423 is shorter than that of the trailing edge portion 424, the length of the leading edge portion is 8.18-12.18 mm, and the length of the trailing edge portion is 13.55-17.55 mm. In cooperation with the radially enlarged enlarged portion 412, this is conducive to maintaining the uniform height of the tip portion 422 in the radial direction, thereby ensuring stable enhancement of wind pressure.

[0036] The root portion 421 extends clockwise from back to front, the tip portion 422 extends clockwise from back to front, and in the same blade 42, the projection of the root portion 421 on the wheel shell 41 intersects with the projection of the tip portion 422 on the wheel shell. It can be known that although the tip portion 422 and the root portion 421 both extend clockwise, the tip portion 422 has a deflection angle relative to the root portion 421, that is, the blade 42 is twisted, and the air suction and blowing capacity is stronger.

[0037] The root portion 421 is arranged at the enlarged portion 412, the axial distance between the rear end of the root portion 421 and the rear end portion 411 is 4.77-6.77 mm, and the axial distance between the front end of the root portion 421 and the rear end of the smooth portion 413 is 1.18-3.18 mm. It can be seen that the root portion 421 is arranged at the enlarged portion 412 close to the smooth portion 413, the rear end of the enlarged portion 412 guides the flow and increases the pressure, and then the strong wind is formed by the blade 42 and is ejected forward from the smooth portion 413.

[0038] In one embodiment, as shown in FIG. 2 and FIG. 3, the axial projection of the plurality of said blade top portions 422 of the plurality of said blades 42 is on the same circle from the axial angle, the diameter of the circle on which the axial projection of the said blade top portions 422 is 50.8-54.8mm. And the axial projection of the plurality of said blade top portions 422 and the axial projection of the said outer ring portion 1 are concentric circles. The gap between the said blade top portions 422 and the inner wall of the said outer ring portion 1 is 0.1-4.96mm or 0.96-4.96mm, the said blade 42 has good air suction effect, and the said blade 42 and the said outer ring portion 1 have the effect of further pressurizing the airflow, and the air outlet effect is better.

[0039] As shown in FIG. 2, FIG. 5, FIG. 6 and FIG. 8, in the present embodiment, two adjacent said blades 42 at least partially overlap in the axial direction, and in the radial and outward direction, the adjacent said blades 42 change from the overlapping state to the spaced state, and the spacing gradually increases. The overlapping part of the said blade 42 can provide greater suction force for the said fan blade 4, while the spacing can weaken the pressure difference before and after the said blade 42 and avoid whistling noise. The angle between the connecting line of the front and back ends of the said blade root portion 421 and the axial direction is 30-80°, which can ensure that a larger air speed can be provided, and at the same time, the air can be rotated at a small angle, thereby effectively reducing the wind noise. The angle between the connecting line of the front and back ends of the said blade root portion 421 and the connecting line of the front and back ends of the said blade top portion 422 is 5-25°, which can make the said blade 42 rotate the air at a small angle, so that the wind force sent out is more uniform and soft, and the silent effect is better. It should be understood that the angle between the projection of the said blade root portion 421 on the said enlarged portion 412 and the projection of the said blade top portion 422 on the said enlarged portion 412 should not be too large, otherwise the wind resistance will be large, which is not conducive to the rotation of the said fan blade 4, of course, it should not be too small, otherwise the above effect cannot be achieved.

[0040] In one embodiment, as shown in FIG. 2, FIG. 4, FIG. 7 and FIG. 8, from back to front, the said blade 42 extends clockwise, and the said guide vane 3 extends counterclockwise first and then extends straight forward. The spiral direction of the rear part of the said guide vane 3 is opposite to the spiral direction of the said blade 42, under the action of the said enlarged portion 412 and the said blade 42, the airflow is pressurized to form a turbulent flow, and then combed by the said smooth portion 413 and the said guide vane 3 with opposite spiral direction, so as to smooth the forward air outlet.

[0041] In one embodiment, as shown in FIG. 1, FIG. 4, FIG. 7, FIG. 8 and FIG. 9, each of the guide vanes 3 comprises a first section 31 connected with the inner ring 2, and a second section 32 extending rearward from the first section 31. The radially outer side of the second section 32 is connected with the outer ring 1, and the radially inner side of the second section 32 is suspended and spaced apart from the smooth section 413. The axial distance between the leading edge section 423 and the second section 32 is 1-8 mm. The wheel shell 41 and the inner ring 2 are arranged side by side in front and back. The diameter of the smooth section 413 is equal to the diameter of the inner ring 2. The distance between the smooth section 413 and the inner ring 2 is 0.5-2 mm, i.e. the distance between the wheel shell 41 and the inner ring 2 is 0.5-2 mm, thereby forming a smooth inner core. At the same time, the axial distance between the leading edge section 423 and the second section 32 is 1-8 mm, so that the airflow generated by the blade 42 can also be quickly transmitted to the guide vane 3, avoiding the occurrence of backflow and wind blocking, and the noise reduction effect is obvious.

[0042] Preferably, the axial distance between the blade 42 and the guide vane 3 is 1.5-3.5 mm, i.e. the axial distance between the leading edge section 423 and the second section 32 is 1.5-3.5 mm. The guide vane 3 has the functions of rectification and flow guiding. By setting the axial distance between the blade 42 and the guide vane 3, the smooth transition of airflow between the blade 42 and the guide vane is ensured, the turbulence is reduced, and the noise is reduced. The diameter of the fan blade 4 is 50.8-54.8 mm. The ratio of the axial distance between the blade 42 and the guide vane 3 to the diameter of the fan blade 4 is 0.027-0.069. It can be seen that the axial distance between the blade 42 and the guide vane 3 is short enough relative to the diameter of the fan blade 4, the flow path is well connected, the airflow consumption is small, and the airflow can flow smoothly forward.

[0043] In addition, the second section 32 adjacent to the leading edge section 423 extends counterclockwise from rear to front. The first section 31 at the front end first extends counterclockwise, and then extends straight forward. After the airflow generated by the blade 42 is combed by the second section 32, the first section 31 guides the combed airflow to blow straight forward, and the user's hair drying experience is better.

[0044] In one embodiment, as shown in FIG. 2, FIG. 5 and FIG. 10, the number of the blade 42 is 9, and the number of the guide vane 3 is 7. The number of the blade 42 is odd, which is beneficial to the dynamic balance design of the whole fan blade 4. The number of the guide vane 3 is close to the number of the blade 42, which is beneficial to the better combing of the strong airflow generated by the blade 42 by the guide vane 3. Of course, in other embodiments, the number of the blade 42 and the number of the guide vane 3 can be other numbers. For example, the number of the blade 42 can be 9-15.

[0045] In some embodiments, the inner ring portion 2 and the outer ring portion 1 are coaxially arranged, and the inner ring portion 2 and the outer ring portion 1 are both cylindrical. The front end of the inner ring portion 2 is flush with the front end of the outer ring portion 1, or the front end of the inner ring portion 2 protrudes forward beyond the front end of the outer ring portion 1. The rear end of the outer ring portion 1 protrudes backward beyond the rear end of the inner ring portion 2. In terms of the front end of the outer ring portion 1 as the origin, the axial distance between the front end of the inner ring portion 2 and the front end of the outer ring portion 1 is -5-2 mm. In other words, the front end of the inner ring portion 2 protrudes forward by 5 mm relative to the front end of the outer ring portion 1, to the rear end of the inner ring portion 2 recesses backward by 2 mm relative to the front end of the outer ring portion 1. In terms of the rear end of the outer ring portion 1 as the origin, the axial distance between the rear end of the wheel shell 41 and the rear end of the outer ring portion 1 is -18-5 mm. In other words, the rear end of the wheel shell 41 recesses forward by 18 mm relative to the rear end of the outer ring portion 1, to the rear end of the wheel shell 41 protrudes backward by 5 mm relative to the rear end of the outer ring portion 1. Preferably, in an embodiment, the front end of the inner ring portion 2 is flush with the front end of the outer ring portion 1, and the rear end of the wheel shell 41 recesses forward relative to the rear end of the outer ring portion 1. In this way, the rear end of the wheel shell 41 and the rear end of the outer ring portion 1 can form an air inlet space, further reducing noise. It should be understood that the rear end of the wheel shell 41 is the rear end portion 411.

[0046] In an embodiment, the rear end of the wheel shell 41 protrudes backward beyond the rear end of the outer ring portion 1, but the plurality of blades 42 are all accommodated inside the outer ring portion 1. The gap between the blades 42 and the outer ring portion 1 is 0.96-4.96 mm. The rear end of the wheel shell 41 guides air suction, and the blades 42 and the outer ring portion 1 pressurize air flow, enhancing wind energy.

[0047] The above is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. An air outlet component, wherein, include: The outer ring is continuous from front to back, with air intake at the rear and air outlet at the front. The diameter of the inner wall of the outer ring changes by less than 5mm from back to front. The inner ring portion is coaxially arranged with the outer ring portion, and the inner ring portion and the outer ring portion are connected by a plurality of guide vanes. The inner ring portion extends radially from back to front without changing direction. A braking assembly is coaxially arranged with the outer ring portion. The braking assembly is installed on the rear side of the inner ring portion and is radially housed inside the outer ring portion. The braking assembly includes a fan blade and a motor. The fan blade includes a wheel housing and a plurality of blades connected to the outer surface of the wheel housing. The plurality of blades are arranged in a circumferentially spaced manner. The motor is located radially inside the wheel housing. The difference between the maximum diameter of the wheel housing and the diameter of the inner ring is less than 5 mm.

2. The air outlet component according to claim 1, wherein, The diameter of the inner wall of the outer ring remains unchanged from back to front, and the diameter of the inner wall of the outer ring is 51.76 to 55.76 mm. The maximum diameter of the wheel housing is equal to the diameter of the inner ring portion, and both the maximum diameter of the wheel housing and the diameter of the inner ring portion are 30.5 to 34.5 mm.

3. The air outlet component according to claim 1, wherein, The inner ring portion is provided with a base plate and a hollow shaft cylinder extending rearward from the base plate. The motor includes a stator assembly and a rotor assembly. The stator assembly, the rotor assembly and the fan blade are nested and fixed to the shaft cylinder. The inner ring portion has a receiving portion formed on the front side of the substrate, the receiving portion being used to receive a circuit board and / or a display component; The wheel shell and the inner ring are arranged side by side, with a distance of 0.5 to 2 mm between the front end of the wheel shell and the inner ring.

4. The air outlet component according to claim 3, wherein, The rotor assembly includes a shaft, bearings, and a magnetic ring. The rotating shaft and the bearing are inserted and fixed inside the shaft cylinder. The stator assembly is located on the radial outer side of the shaft cylinder. The magnetic ring is located on the radial outer side of the stator assembly and is fixed on the radial inner side of the wheel housing. The wheel housing includes a rear end portion, an enlarged portion that increases radially forward from the rear end portion, and a smooth portion that remains unchanged radially forward from the enlarged portion. The slope of the enlarged portion decreases continuously from back to front, and the wheel housing also includes a fixing post located at the inner center, the fixing post being used to fix and connect the rotating shaft; The rear end of the stator assembly does not extend backward beyond the rear end of the magnetic ring, the front end of the magnetic ring does not extend forward beyond the front end of the smoothing portion, and the rear end of the magnetic ring extends backward beyond the rear end of the smoothing portion.

5. The air outlet component according to claim 4, wherein, The axial length of the enlarged portion is 20.72–24.72 mm, and the axial length of the smooth portion is 7.3–11.3 mm. Each blade includes a blade root connected to the wheel housing and a blade tip opposite to the blade root, the blade root being located in the enlarged portion; The axial distance between the rear end of the leaf root and the rear end is 4.77–6.77 mm. The axial distance between the front end of the leaf root and the rear end of the smooth portion is 1.18–3.18 mm. The gap between the tip of the blade and the inner wall of the outer ring is 0.1 to 4.96 mm.

6. The air outlet component according to claim 1, wherein, With the front end of the outer ring as the origin, the axial distance between the front end of the inner ring and the front end of the outer ring is -5 to 2 mm; with the rear end of the outer ring as the origin, the axial distance between the rear end of the wheel housing and the rear end of the outer ring is -18 to 5 mm.

7. The air outlet component according to claim 1, wherein, Each blade includes a blade root connected to the wheel housing, a blade tip opposite to the blade root, a leading edge connecting the blade root and the blade tip, and a trailing edge connecting the blade root and the blade tip, the leading edge and the trailing edge being disposed opposite to each other; The spiral direction of the guide vane is opposite to that of the blade. Each guide vane includes a first segment connected to the inner ring and a second segment extending backward from the first segment. The radial outer side of the second segment is connected to the outer ring, and the radial inner side of the second segment is suspended. The axial distance between the leading edge and the second segment is 1 to 8 mm.

8. The air outlet component according to claim 1, wherein, The fan blades include: The wheel housing includes a rear end portion, an enlarged portion, and a smooth portion. The enlarged portion extends radially forward from the rear end portion, and the smooth portion extends radially forward from the enlarged portion without changing direction. The wheel housing also includes a fixing post located at the inner center, the fixing post being used to fix the rotating shaft. Multiple blades are connected to the outer surface of the wheel housing, and the multiple blades are arranged in a circumferential and spaced manner; The slope of the enlarged portion decreases continuously from back to front, and multiple blades are connected to the outer surface of the enlarged portion.

9. The air outlet component according to claim 8, wherein, The axial length of the wheel housing is 28.03–36.03 mm, the axial length of the enlarged portion is 20.72–24.72 mm, and the axial length of the smooth portion is 7.3–11.3 mm. The diameter of the rear end portion is 6.37–12.71 mm, the diameter of the smooth portion is 30.5–34.5 mm, and the diameter of the enlarged portion is 6.37–30.5 mm. Each of the blades includes a blade root connected to the wheel housing and a blade tip opposite the blade root; Extending clockwise from the leaf root to the front, and extending clockwise from the leaf tip to the front; Furthermore, in the same blade, the projection of the blade root onto the wheel housing intersects with the projection of the blade tip onto the wheel housing.

10. The air outlet component according to claim 9, wherein, The axial distance between the rear end of the leaf root and the rear end is 4.77 to 6.77 mm, and the axial distance between the front end of the leaf root and the rear end of the smooth part is 1.18 to 3.18 mm. The axial projections of the tips of the multiple blades lie on the same circle, and the diameter of the circle containing the axial projections of the blade tips is 50.8 to 54.8 mm. Each of the blades further includes a leading edge and a trailing edge, the leading edge connecting the front end of the leaf root and the front end of the leaf tip, and the trailing edge connecting the rear end of the leaf root and the rear end of the leaf tip; The leading edge and the trailing edge are disposed opposite to each other, and the leading edge is shorter than the trailing edge. The length of the leading edge is 8.18–12.18 mm, and the length of the trailing edge is 13.55–17.55 mm. The angle between the line connecting the front and rear ends of the leaf root and the axial direction is 30-80°. The angle between the line connecting the front and rear ends of the leaf root and the line connecting the front and rear ends of the leaf tip is 5 to 25°.

11. The air outlet component according to claim 8, wherein, The number of blades is 9-15. In the radial direction from the inside out, the adjacent blades change from an overlapping state to a spaced state, and the spaced state gradually increases.

12. The air outlet component according to claim 1, wherein, The cylindrical body includes an outer ring portion, an inner ring portion, and a plurality of guide vanes connecting the outer ring portion and the inner ring portion; A braking assembly includes a fan blade and a motor. The fan blade is connected to the rear side of the inner ring portion. The fan blade includes a wheel housing and a plurality of blades connected to the outer surface of the wheel housing. The plurality of blades are arranged in a circumferentially spaced manner. The motor is located on the radially inner side of the inner ring portion and / or the wheel housing. The axial distance between the blade and the guide vane is 1.5 to 3.5 mm.

13. The air outlet component according to claim 12, wherein, The diameter of the fan blade is 50.8 to 54.8 mm, and the ratio of the axial distance between the blade and the guide vane to the diameter of the fan blade is 0.027 to 0.

069. The number of guide vanes is 7, and the number of blades is 9; The distance between the wheel housing and the inner ring is 0.5–2 mm; Each of the guide vanes includes a first segment and a second segment connected front to back; The first segment connects the inner ring portion and the outer ring portion, the radial outer side of the second segment is connected to the outer ring portion, and the radial inner side of the second segment is suspended. The blades extend clockwise from back to front, the second segment extends counterclockwise from back to front, and the first segment extends counterclockwise from back to front, then extends straight forward.

14. The air outlet component according to claim 12, wherein, The inner ring and the outer ring are coaxially arranged, and both the inner ring and the outer ring are cylindrical. The front end of the inner ring is flush with the front end of the outer ring, or the front end of the inner ring extends forward beyond the front end of the outer ring, and the rear end of the outer ring extends backward beyond the rear end of the inner ring. The ratio of the outer diameter of the inner ring to the outer diameter of the outer ring is 0.5 to 0.61; The inner ring portion is provided with a base plate and a hollow shaft extending rearward from the base plate; The motor includes a stator assembly and a rotor assembly. The stator assembly, the rotor assembly, and the fan blades are nested and fixed to the shaft cylinder. The rear end of the wheel housing extends rearward beyond the rear end of the outer ring portion. The multiple blades are housed inside the outer ring portion, and the gap between the blades and the outer ring portion is 0.96 to 4.96 mm.

15. The air outlet component according to claim 1, wherein, The braking assembly includes: An electric motor includes a stator assembly and a rotor assembly, the rotor assembly including a magnetic ring located radially outside the stator assembly; A fan blade includes a wheel housing and multiple blades. The multiple blades are connected to the outer surface of the wheel housing and are arranged in a circumferentially spaced manner. The motor is located on the radially inner side of the wheel housing, and the magnetic ring is fixed on the radially inner side of the wheel housing. The ratio of the axial length of the magnetic ring to the axial length of the wheel housing is 0.32 to 0.

57.

16. The air outlet component according to claim 15, wherein, The motor is a three-phase high-speed motor. The stator assembly includes an iron core and a coil. The iron core includes 12 teeth, or 9 teeth, or 6 teeth. The coil is wound around the teeth. The magnetic ring has 8 poles and 4 pole pairs.

17. The air outlet component according to claim 15, wherein, The motor is a single-phase high-speed motor. The stator assembly includes an iron core and a coil. The iron core includes four teeth. The coil is wound around the teeth. The iron core also includes a steel needle for inserting a connecting circuit board. The magnetic ring has 4 poles and 2 pole pairs.

18. The air outlet component according to claim 15, wherein, The inner wall of the wheel housing is provided with multiple ribs, and the magnetic ring is abutted and fixed to the radial inner side of the multiple ribs.

19. The air outlet component according to claim 15, wherein, The rotor assembly further includes a rotating shaft, and the wheel housing further includes a fixing post located at the inner center, the fixing post being used to fix the rotating shaft; It also includes a cylindrical body, which includes an outer ring portion, an inner ring portion, and a plurality of guide vanes connecting the outer ring portion and the inner ring portion. The inner ring portion is provided with a base plate and a hollow shaft extending rearward from the base plate. The rotor assembly also includes a bearing, and the rotating shaft and the bearing are inserted into the shaft, with the bearing located between the rotating shaft and the shaft.

20. The air outlet component according to claim 19, wherein, The stator assembly is fixed to the radial outer side of the shaft cylinder; The magnetic ring is completely disposed inside the wheel housing, and the front edge of the magnetic ring is flush with the front edge of the wheel housing.

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