Positioning structure and fan

Abstract

This application relates to a positioning structure and a fan. The positioning structure is used to fix a first component and a second component. The second component has a limiting groove. The positioning structure includes a first fixing member and a second fixing member. The second fixing member is fixedly connected to the first component. The first fixing member is movably inserted into the second fixing member along a first direction. The second component passes through the first fixing member and the second fixing member along a second direction perpendicular to the first direction. The first fixing member has a driving surface. When the second component passes through the first fixing member, the second component can push against the driving surface to drive the first fixing member to move along the first direction, and to make the driving surface engage with the limiting groove. A fan includes the above-described positioning structure. The above-described positioning structure and fan secure the second component and the first component axially and circumferentially, improving the structural stability of the positioning structure.

Description

Technical Field

[0001] This application relates to the field of fan technology, and in particular to a positioning structure and a fan. Background Technology

[0002] Currently, most fan components are fixed to the second component via a knob. This knob is secured to the first component by axial pressure, offering no circumferential limiting effect and making assembly / disassembly complex. Different users apply different installation pressures; excessive pressure can cause the knob to strip, preventing a secure fixation between the first and second components. This leads to imbalance during rotation of the first component, causing the fan grille to vibrate, and the positioning structure exhibits poor structural stability. Summary of the Invention

[0003] Therefore, it is necessary to provide a positioning structure and a fan to address the problem of poor structural stability of the existing first and second components.

[0004] A positioning structure for fixing a first component and a second component, the second component having a limiting groove, the positioning structure comprising:

[0005] A first fixing member and a second fixing member, the second fixing member being fixedly connected to the first component, the first fixing member being movably inserted into the second fixing member along a first direction, and the second component being inserted through the first fixing member and the second fixing member along a second direction perpendicular to the first direction;

[0006] The first fixing member is provided with a driving surface. When the second component passes through the first fixing member, the second component can push against the driving surface to drive the first fixing member to move along the first direction and make the driving surface cooperate with the limiting groove.

[0007] In the aforementioned positioning structure, the second component passes through the first and second fixing members along the second direction, and the first fixing member is movably inserted into the second fixing member along the first direction, so that the positioning structure can achieve circumferential self-positioning of the second and first components, preventing positioning failure due to excessive force during installation; through the limiting cooperation between the driving surface and the limiting groove, the second and first components are axially positioned, thereby securing the second and first components in both the axial and circumferential directions and improving the structural stability of the positioning structure.

[0008] In one embodiment, the first fixing member has a first shaft hole through which the second component passes, and the inner wall of the first shaft hole has a driving surface, which is an inclined surface that expands outward in a direction away from the central axis of the second component.

[0009] In one embodiment, the second fastener has a second shaft hole through which the second component passes, and the second shaft hole at least partially overlaps with the first shaft hole in a second direction.

[0010] In one embodiment, the positioning structure further includes an elastic element disposed between the first fixing element and the second fixing element, so that the first fixing element can elastically extend and retract along a first direction.

[0011] In one embodiment, the first fixing member has a first limiting portion on the side facing the second fixing member, the second fixing member has a second limiting portion on the side facing the first fixing member, and the two ends of the elastic member elastically abut against the first limiting portion and the second limiting portion, respectively.

[0012] In one embodiment, the second fixing member has a cavity formed on its side along the first direction, the first fixing member is at least partially inserted into the cavity, and the second limiting part is provided on the inner wall of the cavity facing the first fixing member.

[0013] In one embodiment, the first fastener has a first snap-fit ​​portion on its periphery and a second snap-fit ​​portion on the inner wall of the cavity, and the second snap-fit ​​portion and the first snap-fit ​​portion can snap into each other.

[0014] In one embodiment, the positioning structure further includes a clamping member, which is fixed to the second fixing member and has a third axial hole for the second component to pass through.

[0015] In one embodiment, the bottom side of the second fixing member is provided with a first positioning part, and a positioning groove is set in the first positioning part, and the clamping member is accommodated in the positioning groove.

[0016] In one embodiment, the first component has a hub in the middle, and a slot is provided on the hub. The bottom side of the second fixing member is provided with a second positioning part that is inserted into the slot.

[0017] In one embodiment, there are at least two second positioning parts and at least two first positioning parts, and all the second positioning parts and all the first positioning parts are arranged in a ring and distributed at intervals around the outer periphery of the second shaft hole.

[0018] In one embodiment, the first fixing member has a first operating position on the side opposite to the second fixing member, and the second fixing member has a second operating position on the side opposite to the first fixing member. Both the first operating position and the second operating position are a plurality of protrusions evenly distributed along the second direction.

[0019] A fan comprising the aforementioned positioning structure.

[0020] The aforementioned fan secures the second and first components axially and circumferentially, improving the structural stability of the positioning structure. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the positioning structure in one embodiment;

[0022] Figure 2 for Figure 1 A magnified view of part A of the positioning structure shown;

[0023] Figure 3 for Figure 1 A schematic diagram showing the second component in the first position within the positioning structure shown;

[0024] Figure 4 for Figure 1 A schematic diagram showing the second component in the second position within the positioning structure shown;

[0025] Figure 5 for Figure 1 A schematic diagram showing the second component in the third position within the positioning structure shown;

[0026] Figure 6 for Figure 1 Exploded view of the positioning structure shown;

[0027] Figure 7 for Figure 6 Top view of the positioning structure shown;

[0028] Figure 8 for Figure 6 A combined sectional view of the positioning structure shown;

[0029] Figure 9 for Figure 6 The top view of the combined positioning structure shown.

[0030] Figure label:

[0031] 100. First component; 101. Slot; 102. Mounting shaft hole; 200. Second component; 201. Limiting groove; 300. Positioning structure; 310. First fixing member; 311. Driving surface; 312. First shaft hole; 313. First limiting part; 314. First snap-fit ​​part; 315. First operating position; 320. Second fixing member; 321. Second shaft hole; 322. Second limiting part; 323. Cavity; 324. Second snap-fit ​​part; 325. First positioning part; 326. Second positioning part; 327. Second operating position; 330. Elastic member; 400. Clamping member; 401. Third shaft hole. Detailed Implementation

[0032] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0033] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this application, unless otherwise expressly specified and limited, the terms "initial," "connected," "linked," and "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0036] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0038] Please refer to Figure 1 In one embodiment, the fan includes a positioning structure 300.

[0039] Specifically, the aforementioned fan also includes a body, a head, a first component 100, and a second component 200. The head is fixed to the top of the body, the first component 100 and the second component 200 are disposed on the head and used to drive airflow, and the positioning structure 300 is used to fix the first component 100 and the second component 200.

[0040] In the above embodiments, the first component 100 is a fan blade, and the second component 200 is a motor shaft. The first component 100 rotates by rotating the motor shaft. Specifically, the positioning structure includes a motor, which includes a body and a motor shaft connected to the body. The motor shaft is fixedly connected to the first component 100. The motor type can be a servo motor, a stepper motor, or other types; the type of motor is not specifically limited here. In other embodiments, the second component 200 can also be other types of rotatable drive shafts, and the first component 100 and the second component 200 can also be other components.

[0041] Please refer to Figures 1 to 3 In one embodiment, the positioning structure 300 is used to fix the second component 200 and the first component 100. The first component 200 has a limiting groove 201. The positioning structure 300 includes a first fixing member 310 and a second fixing member 320. The second fixing member 320 is fixedly connected to the first component 100. The first fixing member 310 is movably inserted into the second fixing member 320 along a first direction. The second component 200 passes through the first fixing member 310 and the second fixing member 320 along a second direction perpendicular to the first direction.

[0042] Among them, reference Figure 3 The first fixing member 310 is provided with a driving surface 311. When the second component 200 passes through the first fixing member 310, the second component 200 can push against the driving surface 311 to drive the first fixing member 310 to move along the first direction and make the driving surface 311 and the limiting groove 201 limit and cooperate.

[0043] It should be noted that the first direction is Figure 3 The X direction shown is the radial direction of the second component 200. The second direction is... Figure 3 The Y direction shown is the axial direction of the second component 200.

[0044] In the aforementioned positioning structure, the second component 200 passes through the first fixing member 310 and the second fixing member 320 along the second direction, and the first fixing member 310 is movably inserted into the second fixing member 320 along the first direction, so that the positioning structure 300 achieves circumferential self-positioning of the second component 200 and the first component 100, preventing positioning failure due to excessive force during installation; through the limiting cooperation between the driving surface 311 and the limiting groove 201, the second component 200 and the first component 100 are axially positioned, thereby securing the second component 200 and the first component 100 in the axial and circumferential directions, improving the structural stability of the positioning structure.

[0045] For specific implementation details, please refer to the following examples. Figure 3 The first fixing member 310 is provided with a first shaft hole 312 for the second component 200 to pass through. The inner wall of the first shaft hole 312 has a driving surface 311, which is an inclined surface that expands outward in a direction away from the central axis of the second component 200.

[0046] Here, the direction of the central axis of the second component 200 is also... Figure 3 The Y direction is shown. With the above configuration, the second component 200 can smoothly pass through the first fixing member 310, and during the passage process, it drives the first fixing member 310 to move by pushing against the driving surface 311.

[0047] For example, refer to Figure 3 and Figure 4 At the start of installation, the end of the second component 200 is located to the left of the first shaft hole 312; the second component 200 is moved to the right in the second direction until it abuts the driving surface 311, at which point the first fixing member 310 moves upward in the first direction; (refer to...) Figure 5 The second component 200 continues to move to the right along the second direction until the driving surface 311 is engaged in the limiting groove 201. At this time, the first fixing component 310 moves downward along the first direction. The first direction is... Figures 3 to 6 The X direction is shown, and the second direction is... Figures 3 to 6 Y direction shown.

[0048] In this embodiment, the cross-section of the second component 200 is D-shaped, and correspondingly, the first shaft hole 312 is also D-shaped to fit the second component 200. In other embodiments, the cross-section of the second component 200 may also be square or other shapes, and correspondingly, the first shaft hole 312 may also be square or other shapes.

[0049] In this embodiment, the driving surface 311 is a smooth plane. In other embodiments, the driving surface 311 may also be curved, or a plurality of protrusions may be provided on the driving surface 311. When the second component 200 abuts against the driving surface 311, the end of the second component 200 can abut against the gap of the protrusions to prevent the second component 200 from slipping and increase the friction between the driving surface 311 and the second component 200.

[0050] For specific implementation details, please refer to the following examples. Figure 6 and Figure 7 The second fixing member 320 is provided with a second shaft hole 321 for the second component 200 to pass through, and the second shaft hole 321 overlaps at least partially with the first shaft hole 312 in the second direction.

[0051] Here, the second shaft hole 321 and the first shaft hole 312 at least partially overlap in the second direction. This can be understood as the second shaft hole 321 and the first shaft hole 312 being fully or partially connected in the second direction. This allows the second component 200 to smoothly pass through the second shaft hole 321 and the first shaft hole 312 along the second direction, preventing the second component 200 from being unable to be installed due to a lack of connection between the second shaft hole 321 and the first shaft hole 312.

[0052] In this embodiment, the cross-section of the second component 200 is D-shaped, and correspondingly, the second shaft hole 321 is also D-shaped to fit the second component 200. In other embodiments, the cross-section of the second component 200 may also be square or other shapes, and correspondingly, the second shaft hole 321 may also be square or other shapes.

[0053] In this embodiment, the inner diameters of the second shaft hole 321 and the first shaft hole 312 are both larger than the outer diameter of the second component 200, so that the second component 200 can pass through the second shaft hole 321 and the first shaft hole 312.

[0054] Please refer to Figure 7 The positioning structure 300 also includes an elastic element 330, which is disposed between the first fixing element 310 and the second fixing element 320 so that the first fixing element 310 can elastically extend and retract along the first direction.

[0055] With the above configuration, the second component 200 is provided with the first fixing member 310 and the second fixing member 320 along the second direction. The first fixing member 310 can elastically extend and retract along the first direction, thereby realizing the circumferential self-positioning of the second component 200 and the first component 100.

[0056] For example, refer to Figure 3 and Figure 4At the start of installation, the end of the second component 200 is located to the left of the first shaft hole 312, at which point the second component 200 is in the first position. The second component 200 is then moved to the right along the second direction until it abuts against the driving surface 311. At this point, the first fixing member 310 moves upward along the first direction, the elastic member 330 is compressed, and the second component 200 is in the second position. (Reference) Figure 5 Continue to move the second component 200 to the right along the second direction until the driving surface 311 is engaged in the limiting groove 201. At this time, the elastic element 330 will return to its original state and drive the first fixing element 310 to move downward along the radial direction of the second component 200, and the second component 200 will be in the third position.

[0057] Optionally, the elastic element 330 is a spring or a sheet spring.

[0058] In this embodiment, the number of elastic elements 330 is one. In other embodiments, the number of elastic elements 330 may be at least two, with all elastic elements 330 arranged side by side along the first direction between the first fixing element 310 and the second fixing element.

[0059] Please refer to some embodiments of this application. Figure 8 The first fixing member 310 has a first limiting part 313 on the side facing the second fixing member 320, and the second fixing member 320 has a second limiting part 322 on the side facing the first fixing member 310. The two ends of the elastic member 330 elastically abut against the first limiting part 313 and the second limiting part 322 respectively.

[0060] With the above settings, the two ends of the elastic member 330 are respectively limited by the first limiting part 313 and the second limiting part 322, which effectively prevents the elastic member 330 from shifting during the extension and retraction process.

[0061] For details in this embodiment, please refer to Figure 8 One of the first limiting part 313 and the second limiting part 322 is a limiting post, and the other of the first limiting part 313 and the second limiting part 322 is a fixing groove. The fixing post is cylindrical, and the fixing groove is also a cylindrical groove.

[0062] In other embodiments, the fixing post may also be prismatic or other shapes, and the fixing groove may also be prismatic or other shapes.

[0063] In this embodiment, there is one elastic element 330, and correspondingly, there is one first limiting part 313 and one second limiting part 322. In other embodiments, there may be at least two elastic elements 330, and correspondingly, the number of first limiting parts 313 and second limiting parts 322 is set in a one-to-one correspondence with the number of elastic elements 330.

[0064] In this embodiment, one end of the elastic member 330 is detachably connected to the first limiting portion 313, and the other end of the elastic member 330 is detachably connected to the second limiting portion 322. For example, a protrusion is provided on the first limiting portion 313, and one end of the elastic member 330 is sleeved on the first limiting portion 313 and limited on the first limiting portion 313 by the protrusion; or, for another example, a fixing hole is provided on the first limiting portion 313, and a hook is provided on one end of the elastic member 330, so that the hook passes through the fixing hole. In other embodiments, one end of the elastic member 330 and the first limiting portion 313, and the other end of the elastic member 330 and the second limiting portion 322, may also be non-detachably connected. For example, one end of the elastic member 330 and the first limiting portion 313, and the other end of the elastic member 330 and the second limiting portion 322, may be connected by welding or riveting.

[0065] Please refer to some embodiments of this application. Figure 8 The second fixing member 320 has a cavity 323 on its side along the first direction, and the first fixing member 310 is at least partially inserted into the cavity 323. The second limiting part 322 is provided on the inner wall of the cavity 323 facing the first fixing member 310.

[0066] Here, the first fixing member 310 is at least partially inserted into the cavity 323. This can be understood as the first fixing member 310 being partially located within the cavity 323 and the other parts of the first fixing member 310 being located outside the cavity 323. With the above arrangement, the first fixing member 310 and the second fixing member 320 are inserted and engaged along the first direction, which can improve the space utilization of the first fixing member 310, making the positioning structure 300 more compact and easier to assemble and disassemble quickly.

[0067] For details, please refer to Figure 1 The cavity 323 extends along the periphery of the second fixing member 320 in the first direction and has an opening. The first fixing member 310 is inserted into the cavity 323 through the opening to realize the insertion and engagement of the first fixing member 310 and the second fixing member 320.

[0068] Please refer to some embodiments of this application. Figure 8 The first fastener 310 has a first snap-fit ​​part 314 on its periphery, and the inner wall of the cavity 323 has a second snap-fit ​​part 324. The second snap-fit ​​part 324 and the first snap-fit ​​part 314 can snap into each other.

[0069] It is understandable that without the first snap-fit ​​portion 314 and the second snap-fit ​​portion 324, the first fixing member 310 and the second fixing member 320 would be easily separated. With the above arrangement, the first fixing member 310 and the second fixing member 320 can be movably connected and not separated, so as to facilitate quick assembly and disassembly of the two.

[0070] For details in this embodiment, please refer to Figure 8One of the first latching portion 314 and the second latching portion 324 is a latch, and the other of the first latching portion 314 and the second latching portion 324 is a slot. The slot is rectangular.

[0071] In other embodiments, the slot may also be circular or other shapes.

[0072] For example, please refer to Figure 1 The first fixing member 310 has buckles on both sides, and the cavity wall of the cavity 323 has slots on both sides. When the first fixing member 310 is inserted into the cavity 323, the buckles are engaged in the slots. Since the first fixing member 310 can move relative to the second fixing member 320 in the first direction, the buckles can also move in the first direction in the slots.

[0073] In this embodiment, the number of the first latching portion 314 and the second latching portion 324 is not limited to one. That is, the number of the first latching portion 314 and the second latching portion 324 can both be at least two. All the first latching portions 314 and all the second latching portions 324 can be arranged side by side or in other arrangements.

[0074] Please refer to some embodiments of this application. Figure 9 and Figure 6 The positioning structure also includes a clamping member 400, which is fixed to the second fixing member 320 and has a third shaft hole 401 for the second component 200 to pass through.

[0075] It is understandable that the clamping member 400 is made of rubber, and the second part 200 passes through the third shaft hole 401 of the clamping member 400. Since the compression of the rubber part is fixed, the axial pressure generated by the clamping member 400 on the first part 100 is uniformly fixed, which can prevent the first part 100 from tilting.

[0076] Here, the third shaft hole 401, the second shaft hole 321, and the first shaft hole 312 at least partially overlap in the second direction.

[0077] For specific implementation details, please refer to the following examples. Figure 9 The bottom side of the second fixing member 320 is provided with a first positioning part 325, and a positioning groove is set in the first positioning part 325, and the clamping member 400 is accommodated in the positioning groove.

[0078] In this embodiment, please refer to Figure 1 The second fixing member 320 has two first positioning portions 325 on its bottom side, and the clamping member 400 is accommodated in the two positioning grooves. The clamping member 400 is annular, and the first positioning portions 325 are elongated arc-shaped. In other embodiments, the first positioning portions 325 may also be dot-shaped or other shapes.

[0079] Please refer to some embodiments of this application. Figure 1 and Figure 2 The first component 100 has a hub in the middle, and a slot 101 is provided on the hub. The bottom side of the second fixing component 320 is provided with a second positioning part 326 that is inserted into the slot 101.

[0080] The above configuration allows the first component 100 to be detachably connected to the second fixing component 320, facilitating assembly and disassembly.

[0081] Here, the center of the hub is also provided with a mounting shaft hole 102 for the second component 200 to pass through.

[0082] In this embodiment, the second positioning part 326 is an elongated arc shape, and correspondingly, the slot 101 is also an arc-shaped hole to fit the second positioning part 326. In other embodiments, the second positioning part 326 may also be a dot shape, and correspondingly, the slot 101 may also be a circular hole.

[0083] In this embodiment, there are two second positioning parts 326, which are arranged opposite to each other, and the number and position of the slots 101 correspond one-to-one with the number of second positioning parts 326. In other embodiments, the number of second positioning parts 326 may be at least three, and at least two second positioning parts 326 may be inserted into each slot 101.

[0084] For specific implementation details, please refer to the following examples. Figure 9 The number of the second positioning part 326 and the first positioning part 325 is at least two, and all the second positioning parts 326 and all the first positioning parts 325 are arranged in a ring and distributed at intervals around the outer periphery of the second shaft hole 321.

[0085] Please refer to some embodiments of this application. Figure 1 The number of the second positioning part 326 and the first positioning part 325 is at least two, and all the second positioning parts 326 and the first positioning parts 325 are arranged in a ring and distributed at intervals around the outer periphery of the second shaft hole 321.

[0086] Specifically, all the second positioning parts 326 and all the first positioning parts 325 are spaced apart on the outer periphery of the second shaft hole 321. In this way, the structure of the second fastener 320 can be made more compact, and the space utilization of the second fastener 320 can be improved.

[0087] In this embodiment, the second positioning part 326, the first positioning part 325 and the second fixing part 320 are integrally formed structures, which have good integrity and are easy to assemble quickly.

[0088] Please refer to some embodiments of this application. Figure 6The first fixing member 310 has a first operating position 315 on the side opposite to the second fixing member 320, and the second fixing member 320 has a second operating position 327 on the side opposite to the first fixing member 310. The first operating position 315 and the second operating position 327 are both a number of protrusions evenly distributed along the second direction.

[0089] Specifically, place two fingers on the first operating position 315 and the second operating position 327 respectively, and apply force to the two fingers in opposite directions to compress the elastic element 330, thereby dislodging the driving surface 311 from the limiting groove 201 of the second component 200. Then, remove the positioning structure 300 to complete the disassembly of the positioning structure 300. After disassembly, the first component 100 is no longer fixed and can be removed from the second component 200.

[0090] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0091] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A positioning structure (300) for fixing a first component (100) and a second component (200), the second component (200) having a limiting groove (201), characterized in that, The positioning structure (300) includes: A first fixing member (310) and a second fixing member (320) are fixedly connected to the first component (100). The first fixing member (310) is movably inserted into the second fixing member (320) along a first direction. The second component (200) passes through the first fixing member (310) and the second fixing member (320) along a second direction perpendicular to the first direction. The first fixing member (310) is provided with a driving surface (311). When the second component (200) passes through the first fixing member (310), the second component (200) can push against the driving surface (311) to drive the first fixing member (310) to move along the first direction and make the driving surface (311) fit with the limiting groove (201). The first fixing member (310) is provided with a first shaft hole (312) for the second component (200) to pass through. The inner wall of the first shaft hole (312) has the driving surface (311). The driving surface (311) is an inclined surface that expands outward in a direction away from the central axis of the second component (200). The first component (100) has a hub in the middle, and a slot (101) is provided on the hub. The second fixing member (320) has a second positioning part (326) on one side that is inserted into the slot (101).

2. The positioning structure (300) according to claim 1, characterized in that, The second fastener (320) is provided with a second shaft hole (321) through which the second component (200) passes, and the second shaft hole (321) at least partially overlaps with the first shaft hole (312) in the second direction.

3. The positioning structure (300) according to claim 1, characterized in that, The positioning structure (300) further includes an elastic element (330), which is disposed between the first fixing element (310) and the second fixing element (320) so that the first fixing element (310) can elastically extend and retract along a first direction.

4. The positioning structure (300) according to claim 3, characterized in that, The first fixing member (310) has a first limiting part (313) on the side facing the second fixing member (320), and the second fixing member (320) has a second limiting part (322) on the side facing the first fixing member (310). The two ends of the elastic member (330) elastically abut against the first limiting part (313) and the second limiting part (322) respectively.

5. The positioning structure (300) according to claim 4, characterized in that, The second fixing member (320) has a cavity (323) on its side along the first direction, and the first fixing member (310) is at least partially inserted into the cavity (323). The second limiting part (322) is provided on the inner wall of the cavity (323) facing the first fixing member (310).

6. The positioning structure (300) according to claim 5, characterized in that, The first fixing member (310) has a first snap-fit ​​part (314) on its periphery, and the inner wall of the cavity (323) has a second snap-fit ​​part (324). The second snap-fit ​​part (324) and the first snap-fit ​​part (314) can snap into each other.

7. The positioning structure (300) according to claim 2, characterized in that, The positioning structure (300) further includes a clamping member (400), which is fixed to the second fixing member (320) and has a third shaft hole (401) through which the second component (200) passes.

8. The positioning structure (300) according to claim 7, characterized in that, The second fixing member (320) has a first positioning part (325) on one side, and a positioning groove is set in the first positioning part (325), and the clamping member (400) is accommodated in the positioning groove.

9. The positioning structure (300) according to claim 8, characterized in that, The number of the second positioning part (326) and the first positioning part (325) is at least two, and all the second positioning parts (326) and all the first positioning parts (325) are arranged in a ring and distributed at intervals on the outer periphery of the second shaft hole (321).

10. The positioning structure (300) according to claim 1, characterized in that, The first fixing member (310) has a first operating position (315) on the side away from the second fixing member (320), and the second fixing member (320) has a second operating position (327) on the side away from the first fixing member (310). The first operating position (315) and the second operating position (327) are both a plurality of protrusions evenly distributed along the second direction.

11. A fan, characterized in that, Includes the positioning structure (300) as described in any one of claims 1-10.

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