Fan blade assembling structure and ceiling fan

Abstract

The fan blade assembling structure comprises a rotating base, a plurality of fan blades and a pressing disc, a plurality of installation parts which are evenly distributed in the circumferential direction are arranged on the lower end face of the rotating base, assembling parts are arranged at the inner ends of the fan blades, a plug pin is arranged on one of the assembling parts and the installation parts, and an inserting hole is formed in the other one of the assembling parts and the installation parts. The plug pin is inserted into the inserting hole, the assembling part and the mounting part are relatively fixed in the circumferential direction, the pressing disc is fixedly connected to the lower end face of the rotating base, and the pressing disc abuts against the lower end face of the assembling part so as to limit the multiple fan blades. During assembling, the assembling part of the fan blade is connected with the mounting part of the rotating seat, relative rotation of the fan blade and the rotating seat is limited, then the pressing disc is fixedly connected to the lower end face of the rotating seat, the fan blade is pressed through the pressing disc, the fan blade is prevented from falling off, and convenience and rapidness are achieved. Due to the fact that the fan blades are of a detachable structure, the packaging size can be greatly reduced, the occupied space is reduced, the transportation and storage cost is reduced, and a user can conveniently store the fan blades after using the fan.

Description

TECHNICAL FIELD

[0001] The utility model relates to ceiling fan technical field especially fan blade assembly structure and ceiling fan. BACKGROUND

[0002] At present, ceiling fan is widely used in various life scenes and working scenes, but the fan blade of ceiling fan is usually not detachable, which leads to large packing volume, large space occupation, high storage and transportation cost and is not conducive to user's storage after use. SUMMARY

[0003] The utility model discloses at least one of the technical problems in the related art is solved, and provides a fan blade assembly structure, which facilitates the disassembly, packing or storage of the fan blade and reduces space occupation.

[0004] According to the utility model embodiments, a fan blade assembly structure is provided, which comprises a rotating seat, a plurality of fan blades and a pressing disc, the lower end face of the rotating seat is provided with a plurality of circumferentially distributed mounting portions, the inner end of the fan blade is provided with an assembly portion, one of the assembly portion and the mounting portion is provided with a latch, and the other is provided with a socket, the latch is inserted into the socket, and the assembly portion and the mounting portion are circumferentially fixed, the pressing disc is fixedly connected to the lower end face of the rotating seat, and the pressing disc abuts against the lower end face of the assembly portion to limit the plurality of fan blades.

[0005] The fan blade assembly structure has at least the following beneficial effects:

[0006] During assembly, the assembly portion of the fan blade is connected with the mounting portion of the rotating seat to limit the relative rotation of the fan blade and the rotating seat, and then the pressing disc is fixedly connected to the lower end face of the rotating seat, the fan blade is pressed by the pressing disc to prevent the fan blade from falling, and the operation is convenient and fast. Since the fan blade adopts a detachable structure, the size of the package can be greatly reduced, the space occupation is reduced, the transportation and storage costs are reduced, and the storage of the user after use is facilitated.

[0007] According to some embodiments of the first aspect of the utility model, the cross-sectional shape of the latch is non-circular, and the cross-sectional shape of the socket matches the cross-sectional shape of the latch.

[0008] According to some embodiments of the first aspect of the utility model, the cross-sectional shape of the latch is triangular, and the inside of the socket is provided with a plurality of positioning strips abutting against the outer wall of the latch.

[0009] According to some embodiments of the first aspect of the utility model, the lower end face of the rotating seat is provided with a threaded column, the pressing disc is provided with a mounting seat, and the mounting seat is provided with a screw hole matched with the threaded column.

[0010] According to some embodiments of the first aspect of the present utility model, the upper end face of the pressing disc is provided with a plurality of concentrically arranged annular convex plates, the heights of the plurality of annular convex plates are consistent, and the lower end face of the assembly part is abutted.

[0011] According to some embodiments of the first aspect of the present utility model, the upper end face of the annular convex plate is provided as a circular arc curved surface, and the circular arc curved surface abuts the lower end face of the assembly part.

[0012] According to the ceiling fan of the second aspect of the present utility model, the fan blade assembly structure of the first aspect is included.

[0013] According to some embodiments of the second aspect of the present utility model, a shell and a motor assembly are included, the upper end of the shell is provided with a hoisting piece, the motor assembly includes a rotor and a stator, the stator is fixed to the shell, the rotor is rotationally connected to the stator, and the rotating seat is the shell of the rotor.

[0014] According to some embodiments of the second aspect of the present utility model, the rotor includes a rotating shaft and an injection molding piece of the rotating seat, and the rotating shaft and the rotating seat are integrally injection molded.

[0015] According to some embodiments of the second aspect of the present utility model, the rotor includes a magnetic ring, the magnetic ring is interference-fitted to the rotating seat, the rotating seat has an inner cavity, an inner wall of the inner cavity is provided with a plurality of circumferentially distributed supporting plates, and the plurality of supporting plates abut the magnetic ring.

[0016] Additional aspects and advantages of the present utility model will be partially given in the following description, some will become apparent from the following description, or will be understood by the practice of the present utility model. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and / or additional aspects and advantages of the present utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0018] Figure 1 is a structural schematic diagram of the ceiling fan of the second aspect of the present utility model;

[0019] Figure 2 is an exploded schematic diagram of the ceiling fan of the second aspect of the present utility model;

[0020] Figure 3 is a structural schematic diagram of the rotating seat in the first aspect of the present utility model Figure 1 ;

[0021] Figure 4 is a structural schematic diagram of the rotating seat in the first aspect of the present utility model Figure 2 ;

[0022] Figure 5 is a structural schematic view of the fan leaf in the first aspect embodiment of the utility model;

[0023] Figure 6 is a structural schematic view of the gland in the first aspect embodiment of the utility model.

[0024] Explanation of reference signs:

[0025] rotating seat 100, inner cavity 101, supporting plate 102, mounting portion 110, bolt 111, threaded column 120, rotating shaft 130, magnetic ring 140;

[0026] fan leaf 200, assembling portion 210, insertion hole 211, positioning strip 212;

[0027] pressing disc 300, mounting seat 310, screw hole 311, annular convex plate 320;

[0028] housing 400, hoisting member 410. DETAILED DESCRIPTION

[0029] The embodiments of the utility model are described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as a limitation on the utility model.

[0030] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0031] In the description of the utility model, the meaning of several is one or more, and the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, and above, below, etc. are understood as including the number. If the first and the second are described, they are only used to distinguish technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0032] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing and connecting should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0033] Reference Figures 1 to 6 The utility model provides a fan blade assembly structure, aims at providing a fan blade assembly scheme which is convenient to assemble, disassemble and store. The fan blade assembly structure can not only maintain the stability of the fan blade during rotation, but also optimize the efficiency of packaging, transportation and storage through the detachable design, and improve the user experience.

[0034] The fan blade assembly structure comprises a rotating seat 100, a plurality of fan blades 200 and a pressing disc 300. First, the rotating seat 100 is the core component of the fan blade assembly structure. The rotating seat 100 serves as the support and driving basis of the fan blades 200. The design takes into account both stability and reliability. A plurality of mounting portions 110 are arranged on the lower end face of the rotating seat 100 in a circumferential uniform distribution. The plurality of mounting portions 110 are arranged in a ring shape to ensure the uniformity of the plurality of fan blades 200 during rotation, thereby achieving uniform output of wind power. The specific form of the mounting portion 110 can be a protruding columnar structure or a groove with a specific shape. The key is to form an effective and stable connection with the assembly portion 210 of the fan blade 200.

[0035] The fan blade 200 is a direct component for generating wind power. The inner end of each fan blade 200 is provided with an assembly portion 210. The assembly portion 210 is assembled with the mounting portion 110 of the rotating seat 100 to jointly form the circumferential fixation of the fan blade 200. For example, the assembly portion 210 and the mounting portion 110 adopt a connection mode of a bolt 111 and a hole 211. Specifically, the bolt 111 can be arranged on the assembly portion 210, and the corresponding hole 211 is formed in the mounting portion 110, or the bolt 111 can be arranged on the mounting portion 110, and the corresponding hole 211 is formed in the assembly portion 210. The installation of the fan blade 200 becomes simple. Only the assembly portion 210 of the fan blade 200 needs to be aligned with the mounting portion 110 of the rotating seat 100, and then gently pushed in. The bolt 111 will automatically insert into the hole 211 to realize the circumferential relative fixation between the two, simplify the assembly process and improve the efficiency. In addition, the assembly portion 210 and the mounting portion 110 can also adopt structure connections such as interference fit and key groove fit.

[0036] In order to fix the fan blade 200 in the axial direction and ensure that it does not fall off during high-speed rotation, the pressing disc 300 is fixedly connected to the lower end face of the rotating seat 100. The size of the pressing disc 300 can cover all or most of the assembly portion 210 of the fan blade 200. The fixing mode of the pressing disc 300 and the rotating seat 100 can have multiple choices, such as threaded connection, bolt fastening, or through buckles, bolts 111, etc. Regardless of the mode, the key is to ensure that the connection between the pressing disc 300 and the rotating seat 100 is firm enough to limit the fan blade 200 and prevent the fan blade 200 from loosening or falling off. At the same time, the design of the pressing disc 300 also needs to consider its lightweight to reduce the burden of the rotating seat 100 and improve energy efficiency.

[0037] The technical effects of the fan blade assembly structure are significant, mainly reflected in the following aspects:

[0038] 1. Quick assembly and disassembly: Through the cooperation of the latch 111 and the socket 211, the installation and disassembly process of the fan blade 200 becomes extremely convenient, without the need for complex tools or professional skills, greatly improving the user experience.

[0039] 2. Space optimization and cost reduction: Since the fan blade 200 adopts a detachable structure, the entire product can significantly reduce the volume when packaging, reducing space occupation, which contributes significantly to reducing transportation and storage costs. In addition, users can easily disassemble the fan blade 200 for storage after use, saving storage space and bringing convenience to users.

[0040] 3. Flexibility and maintainability: The detachable design makes it easier to clean, replace, and maintain the fan blade 200. When the fan blade 200 is worn or damaged due to long-term use, users only need to replace the damaged fan blade 200, without the need to scrap the entire ceiling fan, reducing the cost of use.

[0041] 4. Environmental protection and sustainability: The design of this structure promotes the efficient use of resources and reduces waste generated by product updates, in line with the current green and sustainable development concept.

[0042] 5. Wide application prospects: The fan blade assembly structure is not only suitable for household fans, air conditioner fans, and other household appliances, but also can be extended to industrial fans, ventilation equipment, and other wider fields, with its flexibility and practicality making it have broad market application prospects.

[0043] It can be understood that the cross-sectional shape of the latch 111 is designed to be non-circular, which is to prevent the latch 111 from rotating in the socket 211, thereby enhancing the stability and reliability of the fan blade assembly structure.

[0044] Referring to Figure 3 , the cross-sectional shape of the latch 111 is specifically designed to be triangular or approximately triangular. The triangle has stable structural characteristics and can effectively resist rotation and shear force, so it is very suitable for use in such assembly structures that require high stability.

[0045] The internal shape of the socket 211 is also designed to be triangular, ensuring that the latch 111 can be accurately inserted into the socket 211, and due to the shape restriction, the latch 111 cannot freely rotate in the socket 211. In order to further enhance the tightness of the cooperation between the latch 111 and the socket 211, some small protrusions or grooves can be provided inside the socket 211 to increase the positioning accuracy and prevent the latch 111 from loosening under vibration or impact.

[0046] In order to reduce the weight of the accessory, the latch 111 can be designed to be hollow inside, reducing material and mass, which helps to reduce the energy consumption of driving rotation.

[0047] With reference to Figure 5 A plurality of positioning bars 212 are arranged inside the socket 211. The main function of the positioning bars 212 is to abut against the outer wall of the latch 111, thereby further improving the accuracy of positioning and reducing the gap. The positioning bars 212 are designed to have a semicircular cross section, and are uniformly distributed along the inner wall of the socket 211. When the latch 111 is inserted into the socket 211, the plurality of positioning bars 212 closely fit the outer wall of the latch 111, thereby providing additional friction and stability. In addition, the number and distribution of the positioning bars 212 can be adjusted according to actual needs to meet the needs of different application scenarios.

[0048] With reference to Figure 3 And Figure 6 The lower end surface of the rotating seat 100 is provided with a threaded column 120, and the pressure plate 300 is provided with a screw hole 311 matched with the threaded column 120. The threaded column 120 is usually designed to be cylindrical, which can be solid or hollow, and its surface is processed with standard threads. This design enables the threaded column 120 to be tightly screwed with the screw hole 311 on the pressure plate 300, thereby providing strong fixing force. In addition, the height and diameter of the threaded column 120 can be adjusted according to actual needs to meet the size requirements of different fan blades 200 and drive shafts.

[0049] The pressure plate 300 is provided with a mounting seat 310, and the mounting seat 310 is provided with a screw hole 311 having an internal thread matched with the thread of the threaded column 120. In the actual assembly process, the threaded column 120 is accurately inserted into the screw hole 311, and the threaded column 120 is tightly screwed with the screw hole 311 by rotating the pressure plate 300. By designing the thread of the threaded column 120 as a reverse thread, the pressure plate 300 is in a tightened state during the rotation of the plurality of fan blades 200, preventing the pressure plate 300 from loosening and improving the use reliability.

[0050] With reference to Figure 6 In some embodiments of the present application, in order to further improve the stability and reliability of the fan blade assembly structure, a plurality of annular convex plates 320 are arranged concentrically on the upper end surface of the pressure plate 300. The heights of the plurality of annular convex plates 320 are consistent, and they abut against the lower end surface of the assembly part 210. The main function of the annular convex plates 320 is to reduce the contact area between the pressure plate 300 and the assembly part 210, thereby reducing the weight of the pressure plate 300.

[0051] Further, the upper end surface of the annular convex plate 320 is optimally designed as a circular arc surface. The circular arc surface can better abut against the lower end surface of the assembly part 210, thereby improving the stability and reliability of the fan blade assembly structure. In the actual assembly process, the circular arc surface can better adapt to the shape and size deviation of the assembly part 210, thereby ensuring that the fan blade 200 does not displace or loosen during high-speed rotation.

[0052] With reference to Figure 1 and Figure 2 The second aspect of the utility model provides a ceiling fan, which applies the fan blade assembly structure of the first aspect, and the fan blade adopts a detachable structure. Therefore, the volume of the entire product can be significantly reduced during packaging, and the space occupation is reduced, which contributes to reducing the transportation and storage costs. In addition, the user can easily disassemble and store the fan blade after use, thereby saving storage space and bringing convenience to the user.

[0053] The ceiling fan includes two core components, i.e., a housing 400 and a motor assembly. The upper end of the housing 400 is designed with a hoisting piece 410 to fix the ceiling fan on the top lamp of a ceiling or a mosquito net, thereby achieving the hoisting and fixing of the ceiling fan. The motor assembly is composed of a rotor and a stator. The stator is fixedly installed in the housing 400, and the rotor is rotatably connected to the stator. In particular, the rotating seat 100 is arranged as the shell of the rotor, and the rotor directly drives the rotation of the fan blade through the rotating seat 100.

[0054] In some embodiments of the utility model, the rotor includes a rotating shaft 130, and the rotating seat 100 is an injection molding part. The rotating shaft 130 and the rotating seat 100 are combined into one through integral injection molding. The integral injection molding greatly enhances the connection strength between the rotating shaft 130 and the rotating seat 100, thereby avoiding the problems of loosening or breaking caused by long-term use or excessive load. In addition, the injection molding process can accurately control the size and shape of the product, thereby ensuring the balance and stability of the rotating seat 100 and reducing the noise and vibration during the operation of the ceiling fan. The integral injection molding also simplifies the production process and reduces the manufacturing cost.

[0055] In some embodiments of the utility model, the rotor includes a magnetic ring 140, which is installed in the rotating seat 100 through interference fit assembly. Interference fit assembly refers to that there is a certain interference between the parts after assembly, i.e., the actual size between the fitting surfaces is greater than the difference between the nominal sizes. This assembly method can provide high connection strength and reliability. The rotating seat 100 is internally designed with an inner cavity 101, and the inner wall of the inner cavity 101 is uniformly distributed with a plurality of support plates 102. The plurality of support plates 102 directly abut against the magnetic ring 140, thereby further enhancing the fixing effect of the magnetic ring 140. Through interaction with the coil on the stator, the magnetic ring 140 can generate a rotating magnetic field to drive the rotor, the rotating seat 100 and the fan blade to continuously rotate.

[0056] The utility model embodiment has been explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiment, still can make various changes in the knowledge range of the ordinary skill of the people in the prior art within the premise of not departing from the utility model's tenet.

Claims

1. A fan blade assembly structure characterized by comprising: include: A rotating base, wherein the lower end face of the rotating base is provided with a plurality of circumferentially distributed mounting portions; Multiple fan blades, with an assembly part provided at the inner end of each fan blade. One of the assembly part and the mounting part is provided with a pin, and the other is provided with a hole. The pin is inserted into the hole, and the assembly part and the mounting part are circumferentially fixed to each other. A pressure plate is fixedly connected to the lower end face of the rotating base, and the pressure plate abuts against the lower end face of the assembly part to define a plurality of fan blades.

2. The leaf assembly structure according to claim 1, wherein The cross-sectional shape of the pin is non-circular, and the cross-sectional shape of the socket matches the cross-sectional shape of the pin.

3. The leaf assembly structure according to claim 2, wherein The pin has a triangular cross-sectional shape, and the socket has multiple positioning strips inside, which abut against the outer wall of the pin.

4. The leaf assembly structure according to claim 1, wherein The lower end face of the rotating seat is provided with a threaded post, the pressure plate is provided with a mounting seat, and the mounting seat is provided with a threaded hole that mates with the threaded post.

5. The leaf assembly structure according to claim 1 or 4, wherein The upper surface of the pressure plate is provided with a plurality of concentrically arranged annular protrusions, the plurality of annular protrusions having the same height and abutting against the lower surface of the assembly part.

6. The leaf assembly structure according to claim 5, wherein The upper end surface of the annular convex plate is configured as a circular arc surface, and the circular arc surface abuts against the lower end surface of the assembly part.

7. A ceiling fan, characterized by Includes the fan blade assembly structure as described in any one of claims 1 to 6.

8. The ceiling fan of claim 7, wherein, The device includes a housing and a motor assembly. The upper end of the housing is provided with a lifting device. The motor assembly includes a rotor and a stator. The stator is fixed to the housing, and the rotor is rotatably connected to the stator. The rotating base is the outer shell of the rotor.

9. The ceiling fan of claim 8, wherein, The rotor includes a rotating shaft and an injection-molded part of the rotating seat, wherein the rotating shaft and the rotating seat are integrally injection molded.

10. The ceiling fan of claim 8, wherein, The rotor includes a magnetic ring, which is interference-fitted to the rotating seat. The rotating seat has an inner cavity, and the inner wall of the inner cavity is provided with a plurality of circumferentially distributed support plates, which abut against the magnetic ring.

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