Fan structure
By using a composite bottom frame structure and an integrated reinforcing ring for the outer frame, the vibration and noise problem of the fan during high-speed operation is solved, enhancing the stability of the fan and the support of the airflow channel, thus achieving the effects of shock absorption, noise reduction, and improved airflow output.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN TUOXINJIE HEAT TRANSFER TECH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-19
AI Technical Summary
Existing fans generate noise due to vibration when running at high speeds, and their base frame structure is simple and unstable, failing to effectively buffer the transmission of vibration.
The composite bottom frame structure includes a first support, a second support, and a tube, combining metal and plastic materials to enhance stability and buffer vibration; the outer frame is integrally molded with the reinforcing ring to reduce gaps and improve airflow channel support.
It effectively buffers vibration transmission, reduces noise, improves the stability of the fan structure and the support of the airflow channel, and enhances the stability and efficiency of wind power output.
Smart Images

Figure CN224260527U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fan technology, and specifically to a fan structure. Background Technology
[0002] A fan is a device that uses an electric motor to drive fan blades to rotate, thereby accelerating the circulation of air. Existing fans often produce unpleasant noise during operation, and there are many reasons for this. One reason is that during high-speed operation, the electric motor drives the fan blades to rotate at high speed, generating continuous vibrations. These vibrations are transmitted to the base frame through components such as the motor bracket. However, the base frame structure of existing fans is simple and lacks stability, failing to effectively buffer the transmission of vibrations during operation. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a fan structure that offers advantages such as vibration reduction and noise reduction, structural stability, and effective buffering of vibration transmission during operation.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a fan structure, comprising: an outer frame, a fan body assembled in the outer frame, and a bottom frame;
[0005] The bottom frame includes: a first bracket mounted on one side of the outer frame, a second bracket disposed within the first bracket, and a tube with one end mounted on the second bracket and the other end passing through the first bracket and mounted on the fan body.
[0006] The present invention further provides that the material of the first bracket is any one of four types: plastic, silicone, ABS, and PU.
[0007] In a further embodiment of this invention, the second bracket is made of metal.
[0008] The present invention further includes the following: the fan body includes a hub rotatably mounted in the outer frame and a plurality of fan blades; and the plurality of fan blades are circumferentially disposed on the side wall of the hub; the fan structure further includes a connecting ring connected to the ends of the plurality of fan blades.
[0009] The present invention further includes the following: the outer frame includes a first frame on one side for mounting the bottom frame and a second frame mounted on the other side of the first frame; both the first frame and the second frame are provided with a hollow structure.
[0010] In a further embodiment of this invention, the material of the first frame is metal.
[0011] The present invention further includes, in that the fan structure, a reinforcing ring assembled between the outer frame and the fan body.
[0012] The present invention is further provided that the outer frame and the reinforcing ring are integrally formed.
[0013] In a further improvement of this invention, the reinforcing ring is made of metal.
[0014] The present invention further includes, in addition to, a mounting component and a mounting post located between the first frame and the second frame; one end of the mounting component is fixedly mounted on one side of the reinforcing ring, and the free end extends horizontally outward; the free end of the mounting component is provided with a mounting hole through which the mounting post passes.
[0015] The beneficial effects of adopting the above technical solution are as follows: In this utility model, the bottom frame includes a first support, a second support, and a tube. The second support is disposed within the first support; one end of the tube is mounted on the second support, and the other end passes through the first support and is mounted on the fan body. The first support, the second support, and the tube together form a composite bottom frame structure. This structure not only increases the overall stability of the fan structure but also effectively buffers the transmission of vibration during operation, achieving the effect of shock absorption and noise reduction. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a sectional view of the bottom frame;
[0019] Figure 3 This is a structural diagram of the fan and connecting ring;
[0020] Figure 4 This is an exploded view of the structure in Embodiment 1 of this utility model;
[0021] Figure 5 This is an exploded view of the structure in the corresponding embodiment two of this utility model;
[0022] Figure 6 This is a schematic diagram of the reinforcing ring in Embodiment 3 of this utility model;
[0023] Figure 7 This is a structural schematic diagram of the hidden second frame in the corresponding embodiment three of this utility model;
[0024] Figure 8 This is an exploded view of the structure in the corresponding embodiment three of this utility model;
[0025] Figure 9 This is another exploded view of the structure in Embodiment 3 of this utility model;
[0026] Figure 10 It corresponds Figure 9 A schematic diagram of the structure explosion from another perspective.
[0027] Explanation of reference numerals in the attached drawings: 100, outer frame; 110, first frame; 111, first groove; 120, second frame; 121, second groove; 200, fan body; 210, hub; 220, fan blade; 300, bottom frame; 310, first bracket; 320, second bracket; 330, tube; 400, connecting ring; 500, reinforcing ring; 600, anti-vibration pad; 710, mounting component; 711, mounting hole; 720, mounting post. Detailed Implementation
[0028] The present invention will be further described in detail below with reference to the accompanying drawings.
[0029] This specific embodiment is merely an explanation of the present utility model and is not intended to limit it. Those skilled in the art, after reading this specification, can make modifications to this embodiment without contributing any inventive element, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present utility model. It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, the first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0030] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0031] Example 1:
[0032] This embodiment relates to a fan structure, see reference Figures 1-4 The system includes an outer frame 100, a fan body 200 assembled within the outer frame 100, and a bottom frame 300. The bottom frame 300 includes a first bracket 310, a second bracket 320, and a tube 330. The first bracket 310 is mounted on one side of the outer frame 100; the second bracket 320 is disposed within the first bracket 310; one end of the tube 330 is mounted on the second bracket 320, and the other end passes through the first bracket 310 and is mounted on the fan body 200. Specifically, the outer frame 100 provides sufficient installation space for the fan body 200 and also provides physical protection for the fan body 200. The first bracket 310, the second bracket 320, and the tube 330 cooperate to form a composite bottom frame 300 structure, greatly enhancing the structural strength of the bottom frame 300 and improving the overall stability of the fan structure. It also effectively buffers vibration transmission during operation, achieving vibration reduction and noise reduction. During the assembly process, the second bracket 320 and the tube body 330 are assembled by mechanical riveting, and the perpendicularity of the two is ensured by using special tooling and testing equipment.
[0033] Furthermore, the first support 310 is made of any one of four materials: plastic, silicone, ABS adhesive, and PU adhesive. In this embodiment, the first support 310 is made of plastic. In some embodiments, the first support 310 may also be made of silicone.
[0034] Furthermore, the second support 320 is made of metal. The tube body 330 is also made of metal. In this embodiment, the metal second support 320 and the metal tube body 330 enhance the structural strength of the base frame 300 and improve overall stability. The second support 320 is located within the first support 310, while the plastic first support 310 serves as auxiliary support and shock absorption.
[0035] In this embodiment, refer to Figure 3The fan body 200 includes a hub 210 rotatably mounted within the outer frame 100 and multiple fan blades 220. The multiple fan blades 220 are circumferentially arranged on the sidewall of the hub 210. The fan structure also includes a connecting ring 400 connected to the ends of the multiple fan blades 220. The ends of the multiple fan blades 220 are all connected to the connecting ring 400. Under high-pressure conditions generated by the high-speed rotation of the fan blades 220, the connecting ring 400 can effectively disperse the pressure on the fan blades 220, avoiding deformation of the fan blades 220 caused by localized stress concentration. This ensures the stability of the fan structure during high-speed operation, reduces operating noise, and significantly improves the stability and efficiency of the wind power output.
[0036] Furthermore, referring to Figure 4 The outer frame 100 includes a first frame 110 and a second frame 120. The first frame 110 has a base frame 300 mounted on one side, and the second frame 120 is mounted on the other side of the first frame 110. Both the first frame 110 and the second frame 120 have a hollow structure to facilitate airflow. Specifically, the first frame 110 is made of metal to provide stable support for the internal airflow channels of the fan structure. The second frame 120 is made of plastic to reduce the overall weight of the fan.
[0037] Furthermore, a shock-absorbing pad 600 is provided on the side of the outer frame 100 facing away from the bottom frame 300 and / or the side of the bottom frame 300 facing away from the outer frame 100. In this embodiment, shock-absorbing pads 600 are provided on the side of the outer frame 100 facing away from the bottom frame 300 and the side of the bottom frame 300 facing away from the outer frame 100, and multiple shock-absorbing pads 600 are provided to reduce vibration and noise. In other embodiments, shock-absorbing pads 600 are provided on the side of the outer frame 100 facing away from the bottom frame 300 or the side of the bottom frame 300 facing away from the outer frame 100.
[0038] Example 2:
[0039] This embodiment is basically the same as Embodiment 1, except that: (Refer to...) Figures 1-3 as well as Figure 5The first frame 110 and the second frame 120 are integrally formed, and both the first frame 110 and the second frame 120 are made of plastic. This fan structure also includes a reinforcing ring 500 assembled between the outer frame 100 and the fan body 200. The outer frame 100 and the reinforcing ring 500 are integrally formed. The reinforcing ring 500 is made of metal. The reinforcing ring 500 reduces the gap between the fan blade 220 and the outer frame 100. Specifically, the reinforcing ring 500 is located between the first frame 110 and the fan body 200 in the outer frame 100, and the reinforcing ring 500 and the first frame 110 in the outer frame 100 are integrally formed. This integral forming is achieved through a rubber-coated injection molding process, which not only avoids dimensional deviations caused by draft angles, but also effectively ensures the dimensional accuracy of the air inlet and outlet, providing stable support for the internal airflow channel of the fan and improving ventilation efficiency.
[0040] Example 3:
[0041] This embodiment is basically the same as Embodiment 1, except that: (Refer to...) Figures 6-10 Both the first frame 110 and the second frame 120 are made of plastic. This fan structure also includes a reinforcing ring 500 assembled between the outer frame 100 and the fan body 200. The reinforcing ring 500 is made of metal. The reinforcing ring 500 reduces the gap between the fan blade 220 and the outer frame 100. This fan structure also includes a mounting member 710 and a mounting post 720 located between the first frame 110 and the second frame 120; one end of the mounting member 710 is fixedly assembled to one side of the reinforcing ring 500, and the free end extends horizontally outward; the free end of the mounting member 710 has a mounting hole 711 through which the mounting post 720 passes. Specifically, the first frame 110 facing the mounting member 700 and the second frame 120 facing the mounting member 710 are respectively provided with a first groove 111 and a second groove 121 for inserting both ends of the mounting post 720, so as to limit the mounting post 720, thereby securing the mounting member 710 between the first frame 110 and the second frame 120, and finally securing the reinforcing ring 500 between the second frame 120 and the fan body 200, ensuring the overall stability of the fan structure.
[0042] The above is only used to illustrate the technical solution of this utility model and not to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.
Claims
1. A fan structure, characterized in that, include: The outer frame (100), the fan body (200) assembled inside the outer frame (100), and the bottom frame (300); The bottom frame (300) includes: a first bracket (310) mounted on one side of the outer frame (100), a second bracket (320) disposed inside the first bracket (310), and a tube (330) mounted on the second bracket (320) at one end and passing through the first bracket (310) at the other end on the fan body (200).
2. The fan structure according to claim 1, characterized in that, The first bracket (310) is made of any one of four materials: plastic, silicone, ABS, and PU.
3. The fan structure according to claim 2, characterized in that, The material of the second bracket (320) is set to metal.
4. The fan structure according to claim 1, characterized in that, The fan body (200) includes: a hub (210) rotatably mounted in the outer frame (100) and a plurality of fan blades (220); and the plurality of fan blades (220) are circumferentially arranged on the side wall of the hub (210); the fan structure further includes: a connecting ring (400) connected to the ends of the plurality of fan blades (220).
5. The fan structure according to claim 4, characterized in that, The outer frame (100) includes: a first frame (110) on one side for mounting the bottom frame (300) and a second frame (120) mounted on the other side of the first frame (110); both the first frame (110) and the second frame (120) are provided with a hollow structure.
6. The fan structure according to claim 5, characterized in that, The material of the first frame (110) is set to metal.
7. The fan structure according to claim 5, characterized in that, The fan structure further includes a reinforcing ring (500) assembled between the outer frame (100) and the fan body (200).
8. The fan structure according to claim 7, characterized in that, The outer frame (100) and the reinforcing ring (500) are integrally formed.
9. The fan structure according to claim 7, characterized in that, The reinforcing ring (500) is made of metal.
10. The fan structure according to claim 7, characterized in that, The fan structure further includes: a mounting component (710) and a mounting post (720) located between the first frame (110) and the second frame (120); one end of the mounting component (710) is fixedly mounted on one side of the reinforcing ring (500), and the free end extends horizontally outward; the free end of the mounting component (710) is provided with a mounting hole (711) through which the mounting post (720) passes.