Mute annular fan

Abstract

The utility model discloses a silent annular fan which comprises a fan outer frame, fan blades are rotationally installed in the fan outer frame through a rotating shaft, a silent ring is bonded to the inner wall of the fan outer frame through glue, a first sound absorption layer is fixedly installed in the fan outer frame, a vacuum cavity is wrapped outside the first sound absorption layer, and a vacuum layer is arranged in the vacuum cavity. A first sound absorption layer is arranged on the outer wall of the fan outer frame, a second sound absorption layer is wrapped outside the vacuum cavity, the first sound absorption layer and the second sound absorption layer are filled with sound absorption materials, a fan rear cover is fixedly installed on the outer wall of the back face of the fan outer frame, and a fan front cover is fixedly installed on the outer wall of the front face of the fan outer frame. The influence of fan noise on the outside is reduced, so that the experience effect of a user can be effectively improved, noise pollution of the fan to the user is avoided, and the fan is high in practicability, simple in overall structure, low in manufacturing cost and suitable for application and popularization.

Description

Technical Field

[0001] This utility model relates to the field of ring-shaped cooling fan technology, specifically a silent ring-shaped fan. Background Technology

[0002] With the rapid development of the information industry and the continuous improvement of the operating speed of electronic components, the waste heat generated by computer systems has also increased significantly. If the waste heat generated during computer system operation is not dissipated, it will reduce the efficiency of the computer system and may even lead to damage.

[0003] Therefore, a heat dissipation device is needed to dissipate the waste heat generated when the computer system is running. The heat dissipation device commonly used in computer systems is a fan. In order to pursue better heat dissipation efficiency, the speed of the cooling fans used is getting faster and faster.

[0004] However, the noise generated by a high-speed fan will also increase. A loud cooling fan can affect the user's computer operation experience in practice, and may even affect the user's thinking and normal use. Therefore, this utility model proposes a silent ring fan. Utility Model Content

[0005] The purpose of this invention is to provide a silent ring fan to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a silent ring fan, comprising a fan frame, fan blades rotatably mounted inside the fan frame via a rotating shaft, a silent ring glued to the inner wall of the fan frame, a first sound-absorbing layer fixedly installed inside the fan frame, a vacuum cavity wrapped around the outside of the first sound-absorbing layer, a vacuum layer inside the vacuum cavity, and a second sound-absorbing layer covering the outside of the vacuum cavity, both the first and second sound-absorbing layers being filled with sound-absorbing material, a fan rear cover fixedly installed on the back outer wall of the fan frame, and a fan front cover fixedly installed on the front outer wall of the fan frame.

[0007] Preferably, a rear bracket is fixedly installed inside the fan rear cover.

[0008] Preferably, a fan front cover is fixedly installed on the outer surface of the fan front cover.

[0009] Preferably, no fewer than four sets of reinforcing members are fixedly installed between the fan rear cover and the fan front cover, and the reinforcing members are circumferentially distributed at equal intervals through the center point of the fan outer frame.

[0010] Preferably, fixing holes are provided at the four corners of the fan front cover and the fan rear cover.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention effectively absorbs the noise generated by the fan through the first sound-absorbing layer, reducing the noise transmission effect under high-speed fan rotation. The first sound-absorbing layer is covered with a vacuum cavity, and the inside of the vacuum cavity is a vacuum layer. The vacuum layer can effectively reduce the propagation of noise, thereby effectively reducing noise and minimizing its impact. It has a good quiet operation effect. At the same time, vacuum noise reduction has the technical characteristics of low cost and good noise reduction effect.

[0013] The second sound-absorbing layer provides a two-stage sound absorption effect. Combined with the first sound-absorbing layer, it absorbs excess sound waves during fan operation, reducing sound resonance and echo effects. This effectively improves the quiet operation of the fan, reduces the impact of fan noise on the outside world, and enhances the user experience. It avoids fan noise pollution, is highly practical, has a simple overall structure, and is inexpensive to manufacture, making it suitable for widespread use. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the annular fan in an embodiment of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the back of the annular fan according to an embodiment of the present invention;

[0016] Figure 3 This is a three-dimensional structural diagram of the fan frame from the front of an embodiment of the present utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the fan frame according to an embodiment of the present utility model.

[0018] In the diagram: 1. Fan frame; 2. Fan blades; 3. Silent ring; 4. First sound-absorbing layer; 5. Vacuum cavity; 6. Second sound-absorbing layer; 7. Fan rear cover; 8. Rear bracket; 9. Fan front cover; 10. Fan front shield; 11. Reinforcing member; 12. Fixing hole. Detailed Implementation

[0019] 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.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figure 1-4 The present invention provides an embodiment of a silent ring fan, comprising a fan frame 1, wherein fan blades 2 are rotatably mounted inside the fan frame 1 via a rotating shaft;

[0023] For details, please refer to the appendix of the instruction manual. Figure 3 and Figure 4 As shown, a silencing ring 3 is glued to the inner wall of the fan frame 1. In actual use, the silencing ring 3 can be made of sound-absorbing and sound-insulating materials. Thus, the silencing ring 3 can achieve preliminary fan noise reduction and has a preliminary noise reduction effect in actual use.

[0024] The first sound-absorbing layer 4 is fixedly installed inside the fan frame 1. The first sound-absorbing layer is wrapped with a vacuum cavity 5. The vacuum cavity 5 is a vacuum layer inside. The vacuum cavity 5 is covered with a second sound-absorbing layer 6. The first sound-absorbing layer 4 and the second sound-absorbing layer 6 are both filled with sound-absorbing material.

[0025] Based on the above structure, this utility model provides a first sound-absorbing layer 4 inside the frame of the fan blades. The first sound-absorbing layer 4 can effectively absorb the noise generated by the fan and reduce the noise transmission effect under high-speed fan rotation. The first sound-absorbing layer 4 is covered by a vacuum cavity 5. The vacuum cavity 5 is a vacuum layer. Since sound is a mechanical wave, its propagation requires a medium. Therefore, sound cannot vibrate in a vacuum. Since there is no medium in a vacuum, sound cannot propagate in a vacuum.

[0026] When this vacuum structure layer is used in this utility model, the propagation effect of noise can be effectively reduced through the vacuum layer, thereby effectively reducing noise and reducing the impact of noise, resulting in a better quiet operation. At the same time, vacuum noise reduction has the technical characteristics of low cost and good noise reduction effect.

[0027] The second sound-absorbing layer 6 provides a two-stage sound absorption effect. In conjunction with the first sound-absorbing layer 4, it absorbs excess sound waves during fan operation, reducing sound resonance and echo effects. This effectively improves the quiet operation of the fan, reduces the impact of fan noise on the outside world, and enhances the user experience. It also prevents noise pollution from the fan, making it highly practical. Furthermore, its simple overall structure and low manufacturing cost make it suitable for widespread use.

[0028] The fan rear cover 7 is fixedly installed on the back outer wall of the fan frame 1, and the fan front cover 9 is fixedly installed on the front outer wall of the fan frame 1.

[0029] In this embodiment, in order to improve the structural strength and performance of the fan rear cover 7 and the fan front cover 9 of this utility model, a rear bracket 8 is fixedly installed inside the fan rear cover 7, and a fan front cover 10 is fixedly installed on the outer surface of the fan front cover 9.

[0030] The rear bracket 8 can improve the support structure strength of the fan rear cover 7, while the fan front cover 10 can provide a certain support and protection effect and has a certain dustproof practicality.

[0031] In this embodiment, to improve the connection and support strength between the fan rear cover 7 and the fan front cover 9, the specific details are as shown in the attached specification. Figure 3 As shown, no less than four sets of reinforcing members 11 are fixedly installed between the fan rear cover 7 and the fan front cover 9. The reinforcing members 11 are evenly distributed circumferentially through the center point of the fan outer frame 1. The reinforcing members 11 can improve the connection strength between the fan rear cover 7 and the fan front cover 9 and have a good compressive support effect.

[0032] Working principle: When in use, this utility model is installed in the working area through the fan rear cover 7 and the fan front cover 9, which can ensure the normal use of this utility model. The fan blade shaft of this utility model can be connected through an external fan motor, which can drive the fan blade 2 to rotate for heat dissipation.

[0033] This utility model provides a silencing ring 3 on the outer frame of the fan blade 2. In actual use, the silencing ring 3 can achieve preliminary fan noise reduction and has a preliminary noise reduction effect.

[0034] This invention incorporates a first sound-absorbing layer 4 inside the fan blade frame. This first sound-absorbing layer 4 effectively absorbs the noise generated by the fan, reducing the noise transmission effect under high-speed fan rotation. The first sound-absorbing layer 4 is surrounded by a vacuum cavity 5, which is a vacuum layer inside. Since sound is a mechanical wave, its propagation requires a medium. Therefore, sound cannot vibrate in a vacuum. Because there is no medium in a vacuum, sound cannot propagate in a vacuum.

[0035] When this vacuum structure layer is used in this utility model, the propagation effect of noise can be effectively reduced through the vacuum layer, thereby effectively reducing noise and reducing the impact of noise, resulting in a better quiet operation. At the same time, vacuum noise reduction has the technical characteristics of low cost and good noise reduction effect.

[0036] The second sound-absorbing layer 6 provides a two-stage sound absorption effect. In conjunction with the first sound-absorbing layer 4, it absorbs excess sound waves during fan operation, reducing sound resonance and echo effects. This effectively improves the quiet operation of the fan, reduces the impact of fan noise on the outside world, and enhances the user experience. It also prevents noise pollution from the fan, making it highly practical. Furthermore, its simple overall structure and low manufacturing cost make it suitable for widespread use.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A silent ring fan comprising a fan outer frame (1), characterized in that, The fan frame (1) has a fan blade (2) mounted inside by a rotating shaft. A sound-absorbing ring (3) is glued to the inner wall of the fan frame (1). A first sound-absorbing layer (4) is fixedly installed inside the fan frame (1). A vacuum cavity (5) is wrapped around the outside of the first sound-absorbing layer (4). The vacuum cavity (5) is a vacuum layer inside. A second sound-absorbing layer (6) is wrapped around the outside of the vacuum cavity (5). Both the first sound-absorbing layer (4) and the second sound-absorbing layer (6) are filled with sound-absorbing material. A fan back cover (7) is fixedly installed on the back outer wall of the fan frame (1). A fan front cover (9) is fixedly installed on the front outer wall of the fan frame (1).

2. A silent annular fan according to claim 1, characterized in that: A rear bracket (8) is fixedly installed inside the fan rear cover (7).

3. A silent annular fan according to claim 1, characterized in that: The fan front cover (9) is fixedly installed on the outer surface of the fan front cover (9).

4. A silent ring fan according to claim 1, characterized in that: No fewer than four sets of reinforcing members (11) are fixedly installed between the fan rear cover (7) and the fan front cover (9), and the reinforcing members (11) are evenly distributed circumferentially through the center point of the fan outer frame (1).

5. A silent ring fan according to claim 1, characterized in that: Fixing holes (12) are provided at the four corners of the fan front cover (9) and the fan rear cover (7).

Images