Fan structure

Abstract

Provide a fan structure with a simplified mounting structure. 【Solution means】The fan structure is a rotor 100 including a housing base 110, a metal ring 120, and a magnetic ring 130. A cylindrical mounting cavity 111 is provided inside the housing base of the rotor. A first air guide plate 210 and a second air guide plate 220 are respectively provided at both ends facing each other along the axial direction of the mounting cavity. The metal ring is coaxially fixed inside the mounting cavity, the magnetic ring is coaxially fixed inside the metal ring, and a plurality of magnetic steels are provided along the circumferential direction inside the magnetic ring. The stator 300 includes a stator shaft 310 and a coil winding 320. The coil winding is surrounded by the magnetic ring, and the stator shaft is rotatably connected to the first air guide plate and the second air guide plate. It also includes a plurality of fan blades 400 connected to the outside of the housing base. The air flow can effectively reduce the temperature of the stator, and the stator, rotor, and fan blades are integrated.

Description

Technical Field

[0001] The present invention relates to a fan, and more particularly to a fan structure.

Background Art

[0002] Conventional fans are used by connecting the rotating disk of the fan blade to a motor. Some conventional fans form an integral structure with their rotor part as the rotating disk. During use, it has been found that these integral motors generate a large amount of heat during operation, so that the local temperature of the rotor is too high, affecting the magnetism of the internal magnetic steel. The general heat dissipation method is to release heat naturally, which cannot meet the heat dissipation requirements of the integral motor.

Summary of the Invention

Problems to be Solved by the Invention

[0003] An object of the present invention is to solve at least to some extent one of the above technical problems in the related art. Therefore, the present invention provides a fan structure.

Means for Solving the Problems

[0004] To achieve the above object, the technical means of the present invention are as follows. The fan structure according to an embodiment of the first aspect of the present invention is a rotor including a housing base, a metal ring, and a magnetic ring, a cylindrical mounting cavity is provided inside the housing base of the rotor, a first air guide plate and a second air guide plate are respectively provided at both ends facing each other along the axial direction of the mounting cavity, the metal ring is coaxially fixed in the mounting cavity, the magnetic ring is coaxially fixed in the metal ring, and a plurality of magnetic steels are provided in the magnetic ring along its circumferential direction, A stator including a stator shaft and a coil winding, wherein the coil winding is surrounded by the magnetic ring, and the stator shaft is rotatably connected to the first air guide plate and the second air guide plate. Including a plurality of fan blades connected to the outside of the housing base. When the rotor rotates relative to the stator, external air is sucked into the mounting cavity from one of the first air guide plate and the second air guide plate, and discharged from the mounting cavity through the other.

[0005] The fan structure according to the embodiment of the present invention has at least the following beneficial effects. When the air flow passes through the mounting cavity, it can take away the heat in the mounting cavity, effectively reducing the temperature of the stator. The stator, rotor and fan blades are integrated to simplify the mounting structure of the fan.

[0006] In some embodiments of the present invention, both the first air guide plate and the second air guide plate are provided with a plurality of air guide structures distributed in order around the central axis. The air guide structure includes a first plate portion, a second plate portion and a third plate portion. The axial projections of the first plate portion, the second plate portion and the third plate portion are distributed in order around the central axis of the mounting cavity. The first plate portion and the third plate portion are perpendicular to the central axis of the mounting cavity and are distributed with an axial offset. The second plate portion is inclined and connected between the first plate portion and the third plate portion. Between two adjacent air guide structures, the first plate portion of one air guide structure is adjacent to the third plate portion of the other air guide structure, and an air guide port is formed with an axial interval.

[0007] In some embodiments of the present invention, one of the first air guide plate and the second air guide plate is integrally formed at one end of the mounting cavity, and the other is removably mounted at the other end of the mounting cavity.

[0008] In some embodiments of the present invention, the fan blade is integrally formed on the circumferential outer wall of the housing base.

[0009] In some embodiments of the present invention, a plurality of the fan blades are fixed to an end of the housing base by screws, and ends of each of the fan blades are connected to each other to define a connection ring, and the connection ring is provided around a central axis of the housing base. In some embodiments of the present invention, a plurality of connection plates extending along a radial direction are provided on an outer wall in a circumferential direction of the housing base, a locking hook and a guide strip are provided on the connection plate, the locking hook protrudes from the connection plate along an axial direction of the housing base, the guide strip extends along a radial direction of the housing base, an insertion cavity fitting with the connection plate is provided at an end of the fan blade, a slide groove and a first locking port are provided in the insertion cavity, the connection plate can be inserted into the insertion cavity, the guide strip is in sliding contact with the slide groove, and the locking hook is locked in the first locking port.

[0010] In some embodiments of the present invention, the connection plate and the insertion cavity are locked by screws.

[0011] In some embodiments of the present invention, a protruding edge extends radially outward along an outer wall of one end of the housing base, a plurality of second locking ports sequentially distributed along a circumferential direction of the housing base are provided on the protruding edge, the second locking ports are formed along an axial direction of the housing base, a plurality of elastic locking portions are provided at the other end of the housing base, the elastic locking portions are elastically stretchable along a radial direction of the housing base, a connection portion is provided at one end of each of the fan blades, a locking protrusion and a first locking groove are provided in the connection portion, the locking protrusion can be inserted into the second locking port along an axial direction of the housing base, and the elastic locking portion is elastically inserted into the first locking groove and locked and held.

[0012] In some embodiments of the present invention, the protruding edge is provided on the outer wall of the end portion of the housing base on the side of the first air guide plate, a cover plate is connected to the second air guide plate, a plurality of mounting grooves are defined between the second air guide plate and the cover plate, the elastic locking portion is mounted in the mounting groove, the elastic locking portion includes an elastic member and a locking plate, and the elastic member applies an elastic acting force to the locking plate so that the locking plate extends along the radial direction of the housing base.

[0013] In some embodiments of the present invention, a locking strip and a second locking groove are respectively provided on both sides of the connecting portion, and between two adjacent connecting portions, the locking strip on one connecting portion is inserted into the second locking groove of the other connecting portion.

Advantages of the Invention

[0014] Further aspects and advantages of the present invention are partially shown in the following description, some of which will be apparent from the following description or understood by the practice of the present invention.

Brief Description of the Drawings

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easier to understand from the description of the embodiments with reference to the following drawings.

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Embodiments for Carrying out the Invention

[0016] Hereinafter, embodiments of the present invention will be described in detail. The above embodiments are shown in the accompanying drawings, and the same or similar reference numerals throughout all the drawings indicate the same or similar elements, or elements having the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are for the purpose of explaining the present invention and should not be construed as limiting the present invention.

[0017] The present invention relates to a fan structure including a rotor 100, a stator 300, and a fan blade 400. As shown in FIGS. 1 and 2, the rotor 100 includes a housing base 110, a metal ring 120, and a magnetic ring 130. The housing base 110 may have a cylindrical outer contour, and a hollow cylindrical mounting cavity 111 is formed inside thereof. A first air guide plate 210 and a second air guide plate 220 are respectively provided at both axial ends of the mounting cavity 111. In the illustrated direction, the axial direction of the mounting cavity 111 is the vertical up-and-down direction. The first air guide plate 210 is located at the lower end of the mounting cavity 111, and the second air guide plate 220 is located at the upper end of the mounting cavity 111. The metal ring 120 is annular and is coaxially mounted in the mounting cavity 111 and fastened to the inner wall of the mounting cavity 111, and can be fixed by means such as adhesive application and welding.

[0018] The magnetic ring 130 is coaxially fixed to the metal ring 120, and a plurality of magnetic steels are provided along the circumferential direction within the magnetic ring 130. The stator 300 includes a stator shaft 310 and a coil winding 320 attached to the stator shaft 310. The coil winding 320 is disposed within the mounting cavity 111, and the magnetic ring 130 surrounds the coil winding 320. The stator shaft 310 coaxially penetrates the mounting cavity 111 and also penetrates the first air guide plate 210 and the second air guide plate 220. The stator shaft 310 and the first air guide plate 210 and the second air guide plate 220 may be connected via bearings.

[0019] The stator shaft 310, the first air guide plate 210, and the second air guide plate 220 do not move relative to each other in the axial direction. The plurality of fan blades 400 are connected to the outside of the housing base 110. During operation, the upper end of the stator shaft 310 may be fixed to the ceiling. The rotor 100 rotates relative to the stator 300 to drive the fan blades 400 to rotate and generate an air flow. Simultaneously with the rotation of the rotor 100, the first air guide plate 210 and the second air guide plate 220 rotate together with the rotor 100, and external air is sucked into the mounting cavity 111 from one of the first air guide plate 210 and the second air guide plate 220 and discharged from the mounting cavity 111 through the other.

[0020] For example, external air flows into the mounting cavity 111 through the first air guide plate 210, and then the air flow is discharged out from the second air guide plate 220. Also, external air may flow into the mounting cavity 111 through the second air guide plate 220, and then the air flow is discharged out from the first air guide plate 210. When the air flow passes through the mounting cavity 111, it can effectively reduce the temperature of the stator 300 by taking away the heat in the mounting cavity 111. Integrating the stator 300, the rotor 100, and the fan blades 400 simplifies the mounting structure of the fan.

[0021] In some specific embodiments of the present invention, as shown in FIGS. 3 and 4, both the first air guiding plate 210 and the second air guiding plate 220 are provided with a plurality of air guiding structures 230, and the air guiding structures 230 are sequentially distributed around the central axis of the first air guiding plate 210 / the second air guiding plate 220. The air guiding structure 230 includes a first plate portion 231, a second plate portion 232, and a third plate portion 233. The axial projections of the first plate portion 231, the second plate portion 232, and the third plate portion 233 are sequentially distributed around the central axis of the mounting cavity 111.

[0022] That is, in the top view direction or the bottom view direction, the first plate portion 231, the second plate portion 232, and the third plate portion 233 are sequentially distributed along the circumferential direction of the first air guiding plate 210 / the second air guiding plate 220. The first plate portion 231 and the third plate portion 233 are perpendicular to the central axis of the mounting cavity 111, that is, the first plate portion 231 and the third plate portion 233 are horizontally provided and are axially displaced and distributed. The height of the first plate portion 231 is lower than the height of the third plate portion 233, and the third plate portion 233 and the first plate portion 231 are vertically displaced. The second plate portion 232 is inclined and connected between the first plate portion 231 and the third plate portion 233.

[0023] Between two adjacent air guiding structures 230, the first plate portion 231 of one air guiding structure 230 and the third plate portion 233 of the other air guiding structure 230 are adjacently provided, and the first plate portion 231 of one air guiding structure 230 is lower than the third plate portion 233 of the other air guiding structure 230, and the two are axially spaced apart to form an air guiding port 234. When the rotor 100 rotates, the first air guiding plate 210 and the second air guiding plate 220 rotate, and during the rotation, external air flows into the mounting cavity 111 from the corresponding air guiding port 234 on the first air guiding plate 210, and the air flow in the mounting cavity 111 flows out from the corresponding air guiding port 234 on the second air guiding plate 220, thereby forming convection and accelerating the release of heat in the mounting cavity 111.

[0024] One of the first air guide plate 210 and the second air guide plate 220 is integrally formed at one end of the mounting cavity 111, and the other is removably attached to the other end of the mounting cavity 111. As shown in FIG. 1, in this embodiment, the first air guide plate 210 is integrally formed at the lower end of the mounting cavity 111, and the second air guide plate 220 is fixed to the upper end of the mounting cavity 111 as an independent member by means such as screwing.

[0025] The attachment or molding method of the fan blade 400 to the housing base 110 is various. As one of them, as shown in FIG. 1, the fan blade 400 is integrally formed on the circumferential outer wall of the housing base 110, and there is no need to independently attach the fan blade 400, and the attachment efficiency in the assembly process of the fan structure can be effectively improved.

[0026] Also, as shown in FIG. 6, a plurality of fan blades 400 may be directly fixed to the end of the housing base 110 by screws. An arc-shaped segment is provided at the end of each fan blade 400 connected to the housing base 100, and the arc-shaped segments are sequentially connected to define a connection ring 500. The connection ring 500 is provided around the central axis of the housing base 110, a through hole is formed at the center of the connection ring 500 to avoid the first air guide plate 210 or the second air guide plate 220.

[0027] Also, as shown in FIG. 5, a plurality of connection plates 140 extending along the radial direction may be provided on the circumferential outer wall of the housing base 110. The connection plate 140 is provided with a locking hook 141 and a guide strip 142. The locking hook 141 is formed to protrude upward from the connection plate 140 along the axial direction of the housing base 110. The guide strip 142 extends in the radial direction of the housing base 110. One or more guide strips 142 may be provided. When a plurality of guide strips 142 are provided, each guide strip 142 is parallel to each other.

[0028] At the end of the fan blade 400, an insertion cavity 410 that fits into the connection plate 140 is provided. A slide groove 411 and a first locking opening 412 are provided in the insertion cavity 410. When the fan blade 400 is to be attached, the connection plate 140 can be inserted into the insertion cavity 410, and the guide strip 142 is in sliding contact with the slide groove 411. The fitting of the guide strip 142 and the slide groove 411 guides the assembly of the connection plate 140 and the insertion cavity 410. After the locking hook 141 is inserted into the insertion cavity 410, it is locked to the first locking opening 412. By locking the locking hook 141 and the first locking opening 412, the fan blade 400 can be restricted from radially separating from the housing base 110.

[0029] Due to the fitting of the guide strip 142 and the slide groove 411, when the rotor 100 rotates, a thrust can be applied to the fan blade 400 to rotate the fan blade 400 synchronously with the housing base 110. The connection plate 140 and the insertion cavity 410 enable the fan blade 400 to be quickly positioned and attached to the housing base 110. Furthermore, the connection plate 140 and the insertion cavity 410 are locked by screws to ensure that the fan blade 400 is stably connected to the housing base 110 during rotation.

[0030] Also, as shown in FIGS. 7, 8, 9, 10, and 11, a protruding edge 150 is provided on the outer wall of the lower end of the housing base 110, and the protruding edge 150 may extend outward along the radial direction of the housing base 110. The protruding edge 150 is annular. A plurality of second locking openings 151 are provided on the protruding edge 150 and are sequentially distributed along the circumferential direction of the housing base 110. The second locking openings 151 are formed along the axial direction of the housing base 110. The second locking openings 151 can penetrate the protruding edge 150 in the vertical direction.

[0031] A plurality of elastic locking portions 600 are provided at the upper end of the housing base 110. The elastic locking portions 600 can elastically expand and contract along the radial direction of the housing base 110. In a general state, the elastic locking portions 600 are held at positions where they elastically protrude. A connecting portion 420 is provided at one end of each fan blade 400. The connecting portion 420 may be an arc-shaped plate that conforms to the shape of the outer wall of the housing base 110. A locking protrusion 421 and a first locking groove 422 are provided on the connecting portion 420.

[0032] The locking protrusion 421 is provided on the lower side of the connecting portion 420, and the first locking groove 422 is provided on the upper part of the connecting portion 420. When installing, the locking protrusion 421 is inserted downward into the second locking opening 151 along the axial direction of the housing base 110. Then, the upper part of the connecting portion 420 is brought close to the elastic locking portion 600. After the elastic locking portion 600 is retracted, the connecting portion 420 is brought close to the outer wall of the housing base 110, and the elastic locking portion 600 is further loosened. The elastic locking portion 600 elastically returns and extends into the first locking groove 422 and is locked in the first locking groove 422 to be held in the current state. Due to the locking of the elastic locking portion 600, the locking protrusion 421 and the connecting portion 420, the fan blade 400 can be quickly positioned and attached to the housing base 110. The connecting portion 420 and the housing base 110 can be further locked and fixed with screws.

[0033] Specifically, the protruding edge 150 is provided on the outer wall of the end portion of the housing base 110 on the side of the first air guide plate 210. A cover plate 700 is connected to the second air guide plate 220. The cover plate 700 is fixed to the second air guide plate 220 by screws. A plurality of mounting grooves 710 are defined between the second air guide plate 220 and the cover plate 700. The elastic locking portion 600 is mounted in the mounting groove 710. The elastic locking portion 600 includes an elastic member 610 and a locking plate 620. A spring can be used as the elastic member 610. One end of the elastic member 610 abuts against the groove wall of the mounting groove 710, and the other end abuts against the locking plate 620. The elastic member 610 applies an elastic acting force to the locking plate 620 so that the locking plate 620 extends along the radial direction of the housing base 110. The locking plate 620 expands and contracts with respect to the mounting groove 710 under the action of the elastic member 610.

[0034] Furthermore, a second locking groove 424 and a locking strip 423 are respectively provided on the left and right sides of the connection portion 420. In this embodiment, three fan blades 400 are mounted on the housing base 110. Between two adjacent connection portions 420, the locking strip 423 on the right side of one connection portion 420 is inserted into the second locking groove 424 on the left side of the other connection portion 420. That is, each connection portion 420 is sequentially connected by the fitting of the second locking groove 424 and the locking strip 423, and is fitted to each other to surround the housing base 110, so that the connection portions 420 can limit each other from radially separating from the housing base 110.

[0035] In the description of the present invention, the orientation or positional relationship indicated by terms such as "center", "longitudinal direction", "lateral direction", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of easily explaining and simplifying the description of the present invention, and does not indicate or imply that the shown device or component must have a specific orientation and be configured and operate in a specific orientation. Therefore, it should not be understood that the present invention is limited.

[0036] Also, the terms "first" and "second" are for illustrative purposes only and should not be construed as indicating relative importance or suggesting or implicitly indicating the number of the specified technical features. Thus, the features defined by "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless specifically defined and limited, "a plurality" means at least two, for example, two, three, etc.

[0037] In the present invention, unless specifically defined and limited, terms such as "attachment", "alignment", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, the internal communication between two elements, or the interaction relationship between two elements. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific situation.

[0038] In the present invention, unless specifically defined and limited, the fact that the first feature is "above" or "below" the second feature may include that the first feature is in direct contact with the second feature, or may include that the first feature and the second feature are not in direct contact but in contact through other features therebetween. Also, the fact that the first feature is "above", "upward" and "upper surface" of the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The fact that the first feature is "below", "downward" and "lower surface" of the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is lower than that of the second feature.

[0039] In the description of this specification, the description referring to terms such as "some specific embodiments" means that the specific features, structures, materials, or characteristics described in combination with the embodiments or examples are included in at least one embodiment or example of the present invention. In this specification, the exemplary expressions of the above terms do not necessarily mean the same embodiment or example. Also, the described specific features, structures, materials, or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0040] Although the embodiments of the present invention have been shown and described, those skilled in the art can make various changes, corrections, substitutions, and modifications to these embodiments without departing from the principle and gist of the present invention, and it can be understood that the scope of the present invention is limited by the claims and their equivalents.

Description of Reference Numerals

[0041] Rotor 100, housing base 110, mounting cavity 111, metal ring 120, magnetic ring 130, connection plate 140, locking hook 141, guide strip 142, protruding edge 150, second locking port 151, first air guide plate 210, second air guide plate 220, air guide structure 230, first plate portion 231, second plate portion 232, third plate portion 233, air guide port 234, stator 300, stator shaft 310, coil winding 320, fan blade 400, insertion cavity 410, slide groove 411, first locking port 412, connection portion 420, locking protrusion 421, first locking groove 422, locking strip 423, second locking groove 424, connection ring 500, elastic locking portion 600, elastic member 610, locking plate 620, cover plate 700, mounting groove 710?

Claims

1. A rotor (100) including a housing base (110), a metal ring (120), and a magnetic ring (130), wherein a cylindrical mounting cavity (111) is provided inside the housing base (110) of the rotor (100), and a first air guide plate (210) and a second air guide plate (220) are respectively provided at both ends facing each other along the axial direction of the mounting cavity (111), the metal ring (120) is coaxially fixed in the mounting cavity (111), the magnetic ring (130) is coaxially fixed in the metal ring (120), and a plurality of magnetic steels are provided in the magnetic ring (130) along its circumferential direction; and A stator (300) including a stator shaft (310) and a coil winding (320), wherein the coil winding (320) is surrounded by the magnetic ring (130), and the stator shaft (310) is rotatably connected to the first air guide plate (210) and the second air guide plate (220); and A plurality of fan blades (400) connected to the outside of the housing base (110), and When the rotor (100) rotates relative to the stator (300), external air is sucked into the mounting cavity (111) from one of the first air guide plate (210) and the second air guide plate (220), and is discharged from the mounting cavity (111) through the other, characterized by a fan structure.

2. The first air guide plate (210) and the second air guide plate (220) are both provided with a plurality of air guide structures (230) that are sequentially distributed around the central axis. The air guide structure (230) includes a first plate portion (231), a second plate portion (232), and a third plate portion (233). The axial projections of the first plate portion (231), the second plate portion (232), and the third plate portion (233) are sequentially distributed around the central axis of the mounting cavity (111). The first plate portion (231) and the third plate portion (233) are perpendicular to the central axis of the mounting cavity (111) and are distributed with an axial shift. The second plate portion (232) is inclined and connected between the first plate portion (231) and the third plate portion (233). Between two adjacent air guide structures (230), the first plate portion (231) of one air guide structure (230) and the third plate portion (233) of the other air guide structure (230) are adjacent and form an air guide port (234) with an axial interval therebetween. The fan structure according to claim 1, characterized in that.

3. One of the first air guide plate (210) and the second air guide plate (220) is integrally formed at one end of the mounting cavity (111), and the other is removably attached to the other end of the mounting cavity (111). The fan structure according to claim 1 or 2, characterized in that.

4. The fan blade (400) is integrally formed on the circumferential outer wall of the housing base (110). The fan structure according to claim 1, characterized in that.

5. A plurality of the fan blades (400) are fixed to the end of the housing base (110) by screws. The ends of each fan blade (400) are connected to each other to define a connection ring (500). The connection ring (500) is provided around the central axis of the housing base (110). The fan structure according to claim 1, characterized in that.

6. On the circumferential outer wall of the housing base (110), a plurality of connection plates (140) extending along the radial direction are provided. A locking hook (141) and a guide strip (142) are provided on the connection plate (140). The locking hook (141) protrudes from the connection plate (140) along the axial direction of the housing base (110), and the guide strip (142) extends along the radial direction of the housing base (110). At the end of the fan blade (400), an insertion cavity (410) fitting with the connection plate (140) is provided. A slide groove (411) and a first locking opening (412) are provided in the insertion cavity (410). The connection plate (140) can be inserted into the insertion cavity (410), the guide strip (142) is in sliding contact with the slide groove (411), and the locking hook (141) is locked in the first locking opening (412). The fan structure according to claim 1, characterized in that.

7. The connection plate (140) and the insertion cavity (410) are locked by screws. The fan structure according to claim 6, characterized in that.

8. On the outer wall of one end of the housing base (110), a protruding edge (150) extends outward along the radial direction. A plurality of second locking openings (151) distributed in sequence along the circumferential direction of the housing base (110) are provided on the protruding edge (150). The second locking openings (151) are formed along the axial direction of the housing base (110). A plurality of elastic locking parts (600) are provided at the other end of the housing base (110). The elastic locking parts (600) can elastically expand and contract along the radial direction of the housing base (110). A connection part (420) is provided at one end of each fan blade (400). A locking protrusion (421) and a first locking groove (422) are provided on the connection part (420). The locking protrusion (421) can be inserted into the second locking opening (151) along the axial direction of the housing base (110). The elastic locking part (600) is elastically inserted into the first locking groove (422) and locked and held. The fan structure according to claim 1, characterized in that.

9. The protruding edge (150) is provided on the outer wall of the end portion of the housing base (110) on the side of the first air guide plate (210), a cover plate (700) is connected to the second air guide plate (220), and a plurality of mounting grooves (710) are defined between the second air guide plate (220) and the cover plate (700). The elastic locking portion (600) is mounted in the mounting groove (710). The elastic locking portion (600) includes an elastic member (610) and a locking plate (620). The elastic member (610) applies an elastic acting force to the locking plate (620) so that the locking plate (620) extends outward along the radial direction of the housing base (110). The fan structure according to claim 8, characterized in that.?

10. A locking strip (423) and a second locking groove (424) are respectively provided on both sides of the connecting portion (420). Between two adjacent connecting portions (420), the locking strip (423) in one connecting portion (420) is inserted into the second locking groove (424) of the other connecting portion (420). The fan structure according to claim 8 or 9, characterized in that.?

Images