Silent energy-saving fan

Abstract

The application belongs to the technical field of heat dissipation fans, and particularly relates to a silent energy-saving fan, which comprises a heat dissipation assembly and a fan assembly, and the fan assembly is fixed to the heat dissipation assembly. The fan assembly comprises a fan frame, a motor, a rotating shaft, a hub and fan blades. The silent energy-saving fan provided by the application forms a pressure difference through the rapid airflow on the air exhaust side after the rotation of the fan blades, forms a negative pressure environment in the fan frame, and uses the negative pressure to independently suck the outside cold air and the hot air absorbing heat at the heat dissipation assembly through the negative pressure drainage cavity to perform air intake heat exchange, thereby improving the air intake amount, airflow utilization rate and heat dissipation efficiency, reducing the motor operation power consumption, effectively reducing the power consumption, and effectively avoiding the airflow splitting and impact noise generated by the straight air intake of the traditional fan, and the airflow is more smoothly introduced.

Description

Technical Field

[0001] This invention belongs to the field of cooling fan technology, and particularly relates to a silent and energy-saving fan. Background Technology

[0002] At present, electronic equipment, industrial control cabinets, energy storage power supplies, high-power chips and other electromechanical products will continuously generate heat during operation. In order to ensure the stability of equipment operation and avoid the aging and burning of high-temperature components, the industry generally installs cooling fans in conjunction with heat sinks to complete forced convection cooling.

[0003] Currently, traditional cooling fans on the market all adopt the working mode of motor-driven fan blades to compress airflow in the forward direction and force axial air delivery. Traditional fans only rely on the front of the fan blades to draw in air and axial air to exhaust air. The air intake area is single and the air intake efficiency depends entirely on the motor speed. At low speeds, the air intake volume is insufficient and the heat dissipation efficiency is poor. At high speeds, power consumption and noise increase. It is impossible to meet the three major usage requirements of low power consumption, large air volume and low noise. Summary of the Invention

[0004] The purpose of this invention is to provide a silent and energy-saving fan, which aims to solve the technical problems of traditional cooling fans in the prior art, such as insufficient air intake and poor heat dissipation efficiency at low speeds, and increased power consumption and noise at high speeds, which cannot meet the three major usage requirements of low power consumption, large air volume and low noise.

[0005] To achieve the above objectives, the silent energy-saving fan provided in this embodiment of the invention includes a heat dissipation component and a fan component, wherein the fan component is fixed to the heat dissipation component;

[0006] The fan assembly includes a fan frame, a motor, a shaft, a hub, and fan blades. One end of the fan frame is fixed to the heat dissipation assembly. The fan frame is provided with an airflow channel and multiple negative pressure drainage chambers. The airflow channel passes through the fan frame, and the multiple negative pressure drainage chambers are all located on the inner side of the fan frame and communicate with the airflow channel. The motor is fixed to the fan frame, one end of the shaft is fixed to the motor, and the other end is connected to the hub. The fan blades are fixed to the hub. The motor drives the shaft, hub, and fan blades to rotate. The airflow generated by the rotation of the fan blades forms negative pressure and actively draws in air through the negative pressure drainage chambers.

[0007] As an optional embodiment of the present invention, a plurality of negative pressure drainage cavities are evenly arranged on the fan frame and connected to the fan frame. The plurality of negative pressure drainage cavities are spaced apart and are all arranged in an arc shape.

[0008] As an optional embodiment of the present invention, multiple fan blades are provided, all of which are located inside the fan frame. The fan blades are spaced apart from the outer end of the fan frame to form a negative pressure gap. The negative pressure gap is connected to the airflow channel and the negative pressure drainage cavity, respectively.

[0009] As an optional embodiment of the present invention, the fan frame is provided with a fixing seat and a fixing bolt. The fixing seat is located on one side of the heat dissipation component, and the fixing bolt is threadedly connected to the fixing seat and the heat dissipation component in sequence.

[0010] As an optional embodiment of the present invention, the heat dissipation assembly includes a heat dissipation frame, a fixing column, heat dissipation fins, and a heat absorption plate. The heat dissipation frame is disposed on one side of the fixing base, the fixing column is fixed to the heat dissipation frame and disposed on one side of the fixing base, and the fixing bolt is threadedly connected to the fixing base and the fixing column in sequence.

[0011] As an optional embodiment of the present invention, multiple heat dissipation fins are provided and fixed sequentially to the heat dissipation frame. The multiple heat dissipation fins are vertically arranged on the heat dissipation frame, and adjacent heat dissipation fins are spaced apart to form a heat dissipation air duct. One end of each heat dissipation fin is spaced apart from the heat dissipation frame to form an air intake channel. The air intake channel is V-shaped and both the air intake channel and the heat dissipation air duct are connected to the airflow channel. The heat absorption plate is fixed to the bottom side of the heat dissipation frame. The heat dissipation frame, fixing column, heat dissipation fins, and heat absorption plate are all made of metal.

[0012] As an optional embodiment of the present invention, a mounting bracket is fixedly connected to the side of the heat sink, the mounting bracket is provided with mounting bolts and is spaced apart from the fixing column, and the mounting bolts are threadedly connected to the mounting bracket; both the mounting bracket and the mounting bolts are made of metal.

[0013] The silent energy-saving fan provided in this invention has at least one of the following technical effects:

[0014] The silent energy-saving fan provided in this application creates a pressure difference through the rapid airflow on the exhaust side after the fan blades rotate, forming a negative pressure environment inside the fan frame. The negative pressure is used to autonomously draw in cold air from the outside and hot air that has absorbed heat from the heat dissipation components for air intake heat exchange, which improves the intake volume, airflow utilization rate and heat dissipation efficiency, and reduces the power consumption of the motor, effectively reducing power consumption. In addition, the arc-shaped and evenly distributed negative pressure intake chamber smoothly guides the airflow, effectively avoiding the airflow splitting and impact noise caused by the direct air intake of traditional fans, and the airflow is guided more smoothly. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This is a perspective view of a silent energy-saving fan provided in an embodiment of the present invention.

[0017] Figure 2 This is a perspective view of a silent energy-saving fan provided in an embodiment of the present invention.

[0018] Figure 3 This is a side view of a silent energy-saving fan provided in an embodiment of the present invention.

[0019] Figure 4 for Figure 3 A cross-sectional view along the middle AA.

[0020] The following are the labeling elements in the figure:

[0021] 1. Heat dissipation components; 2. Fan components;

[0022] 11. Heat sink bracket; 12. Mounting post; 13. Heat dissipation fins; 14. Heat absorber plate; 15. Air intake channel; 16. Mounting bracket; 17. Mounting bolts;

[0023] 131. Heat dissipation airflow;

[0024] 21. Fan frame; 22. Motor; 23. Shaft; 24. Hub; 25. Fan blade; 26. Negative pressure gap;

[0025] 211. Airflow channel; 212. Negative pressure drainage chamber; 213. Fixing base; 214. Fixing bolt. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0027] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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 the embodiments of the present invention 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 the present invention.

[0028] 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 one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.

[0030] In one embodiment of the present invention, such as Figures 1-4 As shown, a silent and energy-saving fan is provided, including a heat dissipation component 1 and a fan component 2, wherein the fan component 2 is fixed to the heat dissipation component 1;

[0031] The fan assembly 2 includes a fan frame 21, a motor 22, a rotating shaft 23, a hub 24, and fan blades 25. One end of the fan frame 21 is fixed to the heat dissipation assembly 1. The fan frame 21 is provided with an airflow channel 211 and multiple negative pressure drainage chambers 212. The airflow channel 211 passes through the fan frame 21, and the multiple negative pressure drainage chambers 212 are all located on the inner side of the fan frame 21 and communicate with the airflow channel 211. The motor 22 is fixed to the fan frame 21. One end of the rotating shaft 23 is fixed to the motor 22, and the other end is connected to the hub 24. The fan blades 25 are fixed to the hub 24. The motor 22 drives the rotating shaft 23, the hub 24, and the fan blades 25 to rotate. The airflow generated by the rotation of the fan blades 25 forms negative pressure and actively draws in air through the negative pressure drainage chambers 212. This application utilizes the rapid airflow on the exhaust side after the fan blades 25 rotate to create a pressure difference, forming a negative pressure environment inside the fan frame 21. The negative pressure is used to autonomously draw in cold air from the outside and hot air that has absorbed heat at the heat dissipation component 1 through the negative pressure drainage cavity 212 for intake heat exchange, which improves the intake volume, airflow utilization rate and heat dissipation efficiency, and reduces the operating power consumption of the motor 22, effectively reducing power consumption. In addition, the arc-shaped and uniformly arranged negative pressure drainage cavity 212 smoothly guides the airflow, effectively avoiding the airflow splitting and impact noise caused by the direct air intake of traditional fans, and the airflow is guided more smoothly.

[0032] In another embodiment of the present invention, a plurality of negative pressure drainage chambers 212 are evenly arranged on and connected to the fan frame 21. The plurality of negative pressure drainage chambers 212 are spaced apart and are all arc-shaped. The arc-shaped negative pressure drainage chambers 212 conform to the airflow trajectory, which can smoothly guide the outside air, reduce the intake air resistance, reduce the noise of the intake airflow impact, and further optimize the fan's quietness effect. At the same time, the circumferentially even arrangement can increase the negative pressure suction area. With the rotation of the fan blades 25, the negative pressure is improved, and the intake drainage efficiency is improved. The air intake volume can be guaranteed without increasing the speed of the motor 22, which further reduces the operating load of the motor 22 and has a better energy-saving effect.

[0033] In another embodiment of the present invention, multiple fan blades 25 are provided, all disposed inside the fan frame 21. The fan blades 25 are spaced apart from the outer ends of the fan frame 21, forming a negative pressure gap 26. The negative pressure gap 26 is connected to the airflow channel 211 and the negative pressure drainage cavity 212, respectively. When the fan blades 25 rotate to generate negative pressure, the airflow enters through the negative pressure drainage cavity 212. The negative pressure gap 26 increases the space for airflow entry, thereby increasing the airflow volume. Furthermore, the cold air convects with the hot air absorbed at the heat dissipation component 1, improving the heat dissipation efficiency.

[0034] In another embodiment of the present invention, the fan frame 21 is provided with a fixing seat 213 and a fixing bolt 214. The fixing seat 213 is disposed on one side of the heat dissipation assembly 1, and the fixing bolt 214 is threadedly connected to the fixing seat 213 and the heat dissipation assembly 1 in sequence. The fan frame 21 is detachably disposed on the heat dissipation assembly 1 by means of the fixing bolt 214, which facilitates disassembly and cleaning.

[0035] In another embodiment of the present invention, the heat dissipation assembly 1 includes a heat dissipation frame 11, a fixing post 12, heat dissipation fins 13, and a heat absorption plate 14. The heat dissipation frame 11 is disposed on one side of the fixing base 213, the fixing post 12 is fixed to the heat dissipation frame 11 and disposed on one side of the fixing base 213, and the fixing bolt 214 is threadedly connected to the fixing base 213 and the fixing post 12 in sequence.

[0036] In another embodiment of the present invention, multiple heat dissipation fins 13 are provided and sequentially fixed to the heat sink 11. The multiple heat dissipation fins 13 are vertically arranged on the heat sink 11, with adjacent heat dissipation fins 13 spaced apart to form a heat dissipation airflow channel 131. One end of each heat dissipation fin 13 is spaced apart from the heat sink 11 to form an air intake channel 15. The air intake channel 15 is V-shaped, and both the air intake channel 15 and the heat dissipation airflow channel 131 are connected to the airflow channel 211. The V-shaped air intake channel 15 can increase the air intake area and further improve air quality. High air intake volume and efficiency; heat absorber plate 14 is fixed to the bottom of heat sink 11; heat sink 11, fixing column 12, heat sink fins 13, and heat absorber plate 14 are all made of metal, which facilitates rapid absorption and conduction of heat from the heat source, and dissipates the heat through fan assembly 2, improving heat dissipation efficiency. Furthermore, the metal heat sink 11, fixing column 12, heat sink fins 13, and heat absorber plate 14 can self-dissipate heat in cold air after absorbing heat, further improving heat dissipation efficiency and reducing energy consumption of fan assembly 2, resulting in better energy saving. The high-speed rotation of fan blades 25 creates negative pressure, and air is simultaneously drawn in through the cooling duct 131 and intake channel 15. While ensuring heat conduction, the air intake volume is also guaranteed. Under negative pressure, air is drawn in through the cooling duct 131 and intake channel 15, and the airflow carries the heat absorbed by the heat sink fins 13 to the airflow channel 211, where the high-speed rotating fan blades 25 expel the hot air for heat dissipation.

[0037] In another embodiment of the present invention, a mounting bracket 16 is fixedly connected to the side of the heat sink 11. The mounting bracket 16 is provided with mounting bolts 17 and is spaced apart from the fixing post 12. The mounting bolts 17 are threadedly connected to the mounting bracket 16. Both the mounting bracket 16 and the mounting bolts 17 are made of metal. The mounting bolts 17 facilitate the installation of the heat sink assembly 1 onto the heat source, and allow the heat absorption plate 14 to be in contact with the heat source for heat absorption and dissipation.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A silent and energy-saving fan, characterized in that, It includes a heat dissipation component and a fan component, wherein the fan component is fixed to the heat dissipation component; The fan assembly includes a fan frame, a motor, a shaft, a hub, and fan blades. One end of the fan frame is fixed to the heat dissipation assembly. The fan frame is provided with an airflow channel and multiple negative pressure drainage chambers. The airflow channel passes through the fan frame, and the multiple negative pressure drainage chambers are all located on the inner side of the fan frame and communicate with the airflow channel. The motor is fixed to the fan frame, one end of the shaft is fixed to the motor, and the other end is connected to the hub. The fan blades are fixed to the hub. The motor drives the shaft, hub, and fan blades to rotate. The airflow generated by the rotation of the fan blades forms negative pressure and actively draws in air through the negative pressure drainage chambers.

2. A silent energy-saving fan according to claim 1, characterized in that, Multiple negative pressure drainage chambers are evenly arranged on the fan frame and connected to the fan frame. The multiple negative pressure drainage chambers are spaced apart and are all arranged in an arc shape.

3. A silent energy-saving fan according to claim 1, characterized in that, The fan blades are provided in multiple ways and are all located inside the fan frame. The fan blades are spaced apart from the outer end of the fan frame to form a negative pressure gap. The negative pressure gap is connected to the airflow channel and the negative pressure drainage cavity respectively.

4. A silent energy-saving fan according to claim 1, characterized in that, The fan frame is provided with a fixing seat and fixing bolts. The fixing seat is located on one side of the heat dissipation component, and the fixing bolts are threadedly connected to the fixing seat and the heat dissipation component in sequence.

5. A silent energy-saving fan according to claim 4, characterized in that, The heat dissipation assembly includes a heat dissipation frame, a fixing column, heat dissipation fins, and a heat absorption plate. The heat dissipation frame is disposed on one side of the fixing base, and the fixing column is fixed to the heat dissipation frame and disposed on one side of the fixing base. The fixing bolts are threadedly connected to the fixing base and the fixing column in sequence.

6. A silent energy-saving fan according to claim 5, characterized in that, Multiple heat dissipation fins are provided and fixed sequentially to the heat dissipation frame. The multiple heat dissipation fins are vertically arranged on the heat dissipation frame, and adjacent heat dissipation fins are spaced apart to form a heat dissipation air duct. One end of each heat dissipation fin is spaced apart from the heat dissipation frame to form an air intake channel. The air intake channel is V-shaped and is connected to the airflow channel. The heat absorption plate is fixed to the bottom side of the heat dissipation frame. The heat dissipation frame, fixing column, heat dissipation fins, and heat absorption plate are all made of metal.

7. A silent energy-saving fan according to claim 6, characterized in that, A mounting bracket is fixedly connected to the side of the heat sink. The mounting bracket is equipped with mounting bolts and is spaced apart from the fixing column. The mounting bolts are threaded to the mounting bracket. Both the mounting bracket and the mounting bolts are made of metal.

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