Novel centrifugal fan damping structure

Abstract

The utility model relates to a novel centrifugal fan vibration reduction structure, which belongs to the technical field of centrifugal fan vibration reduction and comprises a fan body, the fan body comprises an upper cover, a rotor, a motor, a copper pipe and a bottom frame, and the vibration reduction structure is arranged on the outer surface of the copper pipe. The vibration reduction structure comprises a soft supporting sleeve connected with the outer surface of the copper pipe in a sleeving mode, connecting blocks are fixed to the front end and the rear end of the interior of the soft supporting sleeve correspondingly, vertical blocks are fixed to the lower ends of the two connecting blocks correspondingly, and inserting blocks are fixed to the lower ends of the vertical blocks. According to the novel centrifugal fan vibration reduction structure, by arranging the vibration reduction assembly, vibration generated when the rotor operates is absorbed and dispersed, so that transmission of the vibration to the surrounding environment can be reduced, the amplitude can be reduced, the resonant frequency can be reduced, noise can be reduced, the noise level generated when the fan operates is further reduced, and the comfort level of the use environment is improved; heat generated by electrifying the motor is transferred to the copper pipe, and part of the heat can be absorbed by the soft supporting sleeve, so that the effects of reducing heat and prolonging the service life of the fan are achieved.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal fan vibration reduction technology, specifically a novel centrifugal fan vibration reduction structure. Background Technology

[0002] A centrifugal fan is a type of fan that uses centrifugal force to draw gas in from the inlet, accelerate it through rotating blades, and then discharge it. It generates centrifugal force through rotating blades to deliver gas to the outlet and is widely used in ventilation, air conditioning, industrial emissions, and other fields. The centrifugal fan is designed to provide efficient airflow and pressure gain and is suitable for various gas transport and processing scenarios.

[0003] Centrifugal fans typically consist of a top cover, rotor, motor, copper tubing, and base frame, as shown in the instruction manual. Figure 5 As shown, current centrifugal fan structures typically have a rigid central frame connecting the fan blades, resulting in poor vibration damping. When the fan operates at high speed, the vibrations generated are transmitted to the fan base and outer frame via the central copper or rubber tubing. The base and outer frame are mostly made of metal and plastic, which also have poor vibration damping. The vibrations from operation are easily transmitted to the computer system, which can easily cause system resonance and generate noise. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a novel centrifugal fan vibration reduction structure, which has advantages such as easy vibration reduction and solves the problem of inconvenient vibration reduction.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel centrifugal fan vibration reduction structure, comprising a fan body, the fan body comprising an upper cover, a rotor, a motor, a copper tube, and a bottom frame, wherein the outer surface of the copper tube is provided with a vibration reduction structure.

[0006] The vibration damping structure includes a flexible support sleeve that fits onto the outer surface of the copper tube. Connecting blocks are fixed at both the front and rear ends of the flexible support sleeve. Vertical blocks are fixed at the lower ends of the two connecting blocks. Insert blocks are fixed at the lower ends of the vertical blocks. Hidden holes are provided at both the front and rear ends of the lower end of the flexible support sleeve. The vibration damping structure also includes an annular groove formed in the bottom wall of the inner cavity of the bottom frame. A protrusion is fixed at the rear end of the flexible support sleeve.

[0007] Furthermore, the flexible support sleeve is a damping rubber ring, which is located inside the annular groove and inserted therein.

[0008] Furthermore, the height of the flexible support sleeve is higher than the height of the inner side of the annular groove.

[0009] Furthermore, the two insert blocks are rubber blocks, and the bottom wall of the annular groove has two T-shaped insertion holes, into which the insert blocks are inserted.

[0010] Furthermore, both the connecting block and the vertical block are located inside the hidden hole, and both the connecting block and the vertical block are fixed inside the hidden hole.

[0011] Furthermore, the copper tube is located inside the annular groove, and the inner diameter of the flexible support sleeve is larger than the outer diameter of the copper tube.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] This novel centrifugal fan vibration reduction structure absorbs and disperses the vibration of the rotor during operation by incorporating vibration damping components. This reduces the transmission of vibration to the surrounding environment, thereby reducing amplitude, lowering resonance frequency, and reducing noise. This further lowers the noise level of the fan during operation, improving the comfort of the user environment. The heat generated by the motor when powered on is transferred to the copper tubes, and some of the heat can also be absorbed by the soft support sleeve, achieving the effects of heat reduction and increasing the life of the fan. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the bottom frame and annular groove structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the copper tube and flexible straight sleeve of this utility model;

[0017] Figure 4 This is a bottom view of the flexible support sleeve of this utility model.

[0018] Figure 5 This is a schematic diagram of the prior art structure of this utility model.

[0019] In the diagram: 1. Top cover, 2. Rotor, 3. Motor, 4. Bottom frame, 5. Copper pipe, 6. Vibration damping structure, 61. Soft support sleeve, 62. Connecting block, 63. Vertical block, 64. Insert block, 65. Hidden hole, 66. Annular groove, 67. Protrusion. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 5The novel centrifugal fan vibration reduction structure in this embodiment includes a fan body, which includes an upper cover 1, a rotor 2, a motor 3, a copper tube 5, and a bottom frame 4. The outer surface of the copper tube 5 is provided with a vibration reduction structure 6.

[0022] Furthermore, the top cover 1 and the bottom frame 4 are fixed together by heat fusion or screws, the copper tube 5 is fixed to the bottom wall of the inner cavity of the bottom frame 4, and the motor 3 is pressed onto the copper tube 5 by a fixture, and the rotor 2 is fixed to the output end of the motor 3.

[0023] It should be noted that the top cover 1, rotor 2, motor 3, copper tube 5 and bottom frame 4 are all commonly known in the prior art, and their connection methods and working principles are also disclosed in the prior art, so they will not be described in detail in this article.

[0024] Please see Figures 1 to 4 In this embodiment, the vibration damping structure 6 includes a flexible support sleeve 61 that is sleeved on the outer surface of the copper tube 5. Both the front and rear ends of the flexible support sleeve 61 are fixed with connecting blocks 62. The lower ends of the two connecting blocks 62 are fixed with vertical blocks 63. The lower ends of the vertical blocks 63 are fixed with insert blocks 64. The front and rear ends of the lower end of the flexible support sleeve 61 are provided with hidden holes 65. The vibration damping structure 6 also includes an annular groove 66 opened in the bottom wall of the inner cavity of the bottom frame 4. The rear end of the flexible support sleeve 61 is fixed with a protrusion 67, which facilitates the flexible support sleeve 61 to be pulled out from the annular groove 66.

[0025] Among them, the soft support sleeve 61 is a damping rubber ring. The soft support sleeve 61 is located inside the annular groove 66 and is inserted into it, so that the soft support sleeve 61 can be inserted into the bottom frame 4.

[0026] Furthermore, the height of the flexible support sleeve 61 is higher than the height of the inner side of the annular groove 66, so as to prevent the flexible support sleeve 61 from being completely inserted into the annular groove 66, so that there is a flexible support structure between the bottom frame 4 and the rotor 2.

[0027] In addition, the two insert blocks 64 are rubber blocks, and two T-shaped insertion holes are opened on the bottom wall of the inner cavity of the annular groove 66. The insert blocks 64 are inserted into the inside of the T-shaped insertion holes, so that the T-shaped insertion block composed of the insert blocks 64 and the vertical block 63 can be inserted into the T-shaped insertion holes, which can further enhance the stability of the soft support sleeve 61 in the annular groove 66.

[0028] In addition, both the connecting block 62 and the vertical block 63 are located inside the hidden hole 65. Both the connecting block 62 and the vertical block 63 are fixed inside the hidden hole 65, so that the connecting block 62 and the vertical block 63 can be fixed inside the soft support sleeve 61 through the hidden hole 65.

[0029] Furthermore, the copper tube 5 is located inside the annular groove 66, and the inner diameter of the flexible support sleeve 61 is larger than the outer diameter of the copper tube 5, so that the flexible support sleeve 61 can be fitted onto the outer surface of the copper tube 5.

[0030] The working principle of the above embodiments is as follows:

[0031] In use, the flexible support sleeve 61 is fitted onto the outer surface of the copper tube 5 and moved into the annular groove 66 of the base frame 4. The two T-shaped plugs of the flexible support sleeve 61, consisting of plug blocks 64 and vertical blocks 63, are aligned with the two T-shaped plug holes in the annular groove 66. The flexible support sleeve 61 is then pushed into the annular groove 66, causing the plug blocks 64 to deform under pressure and enter the T-shaped plug holes. This allows the flexible support sleeve 61 to be installed on the outer surface of the copper tube 5 within the base frame 4. When the rotor 2 rotates, the flexible support sleeve 61 can absorb and disperse the vibration of the rotor 2 during operation, thereby reducing the transmission of vibration to the surrounding environment, reducing amplitude, lowering resonance frequency, and reducing noise. This further reduces the noise level of the fan during operation, improving the comfort of the user environment. Furthermore, the flexible support sleeve 61 is also located between the motor 3 and the base frame 4. The heat generated by the motor 3 when powered on is transferred to the copper tube 5, and some of the heat can also be absorbed by the flexible support sleeve 61, achieving the effects of heat reduction and increasing the lifespan of the fan.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel centrifugal fan vibration damping structure, comprising a fan body, characterized in that: The fan body includes an upper cover (1), a rotor (2), a motor (3), a copper tube (5) and a bottom frame (4), and the outer surface of the copper tube (5) is provided with a vibration damping structure (6); The vibration damping structure (6) includes a flexible support sleeve (61) that is fitted onto the outer surface of the copper tube (5). Both the front and rear ends of the flexible support sleeve (61) are fixed with connecting blocks (62). The lower ends of the two connecting blocks (62) are fixed with vertical blocks (63). The lower ends of the vertical blocks (63) are fixed with insert blocks (64). The front and rear ends of the lower end of the flexible support sleeve (61) are provided with hidden holes (65). The vibration damping structure (6) also includes an annular groove (66) opened in the bottom wall of the inner cavity of the bottom frame (4). The rear end of the flexible support sleeve (61) is fixed with a protrusion (67).

2. The novel centrifugal fan vibration reduction structure according to claim 1, characterized in that: The soft support sleeve (61) is a damping rubber ring, and the soft support sleeve (61) is located inside the annular groove (66) and is inserted into it.

3. The novel centrifugal fan vibration reduction structure according to claim 1, characterized in that: The height of the soft support sleeve (61) is higher than the height of the inner side of the annular groove (66).

4. The novel centrifugal fan vibration reduction structure according to claim 1, characterized in that: The two inserts (64) are rubber blocks, and the bottom wall of the annular groove (66) has two T-shaped insertion holes, and the inserts (64) are inserted into the T-shaped insertion holes.

5. The novel centrifugal fan vibration reduction structure according to claim 1, characterized in that: Both the connecting block (62) and the vertical block (63) are located inside the hidden hole (65), and both the connecting block (62) and the vertical block (63) are fixed inside the hidden hole (65).

6. The novel centrifugal fan vibration reduction structure according to claim 1, characterized in that: The copper tube (5) is located inside the annular groove (66), and the inner diameter of the flexible support sleeve (61) is larger than the outer diameter of the copper tube (5).

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