A high-efficiency energy-saving cooling fan

Abstract

The application relates to a heat dissipation fan, and discloses a high-efficiency energy-saving heat dissipation fan which comprises a fan body fixedly connected to the top surface of a heat dissipation module, and a flow guide piece fixedly connected to the fan body; the flow guide piece is internally provided with a flow guide channel; the upper end and the lower end of the flow guide piece are respectively provided with an air inlet and an air outlet which are communicated with the flow guide channel; the flow guide piece is further provided with an inclined first flow guide plate at the air outlet; the first flow guide plate is located at the lower part of the air outlet side of the heat dissipation module, so that the transversely blown air flow from the air outlet side of the heat dissipation module becomes obliquely downward; and the flow guide channel is further provided with an inclined second flow guide plate, so that the air flow flowing through the flow guide channel is blown to the upper part of the air outlet side of the heat dissipation module. The application reuses the hot air flow, generates new cold air flow to dissipate heat, reuses the already used air flow, realizes the same heat dissipation effect with lower energy consumption, has high energy utilization rate, and is more energy-saving.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of heat dissipation fan, in particular to a high-efficiency energy-saving heat dissipation fan. BACKGROUND

[0002] The heat dissipation fan is widely used in household appliances or electronic equipment, and the airflow is driven by the rotation of the fan blade to dissipate heat from the internal heat source, so as to prevent the temperature from being too high and causing damage. In order to further improve the heat dissipation efficiency of the heat dissipation fan and improve the heat dissipation efficiency, the prior art also appears a lot of improvements on the traditional heat dissipation fan. For example, the Chinese patent file with the name of a heat dissipation fan and the authorization announcement number CN222263430U discloses that the exhaust channel is arranged between the frame support and the frame side, and when the airflow is blown to the heat dissipation module by the rotation of the fan blade, part of the airflow is guided to the periphery of the heat dissipation module through the exhaust channel, so as to reduce the airflow disturbance, drive the airflow around the heat dissipation module, and improve the heat dissipation efficiency. In this scheme, the part of the airflow guided by the exhaust channel is the airflow from the fan blade, which has not flowed to the heat dissipation module. Although this part of the airflow can drive the airflow around the heat dissipation module, it directly reduces the airflow from the fan blade to the heat dissipation module, which leads to limited improvement of the overall heat dissipation efficiency. SUMMARY

[0003] In view of the above-mentioned deficiencies of the prior art, the present application provides a heat dissipation fan which can guide the airflow that has flowed through the heat dissipation module, and has higher heat dissipation efficiency.

[0004] The above technical purpose of the present application is achieved by the following technical scheme:

[0005] A high-efficiency energy-saving heat dissipation fan, comprising a fan body which can be fixedly connected to the top surface of a heat dissipation module, and a flow guide member which is fixedly connected to the fan body, wherein the flow guide member is internally provided with a flow guide channel, the upper end and the lower end of the flow guide member are respectively provided with an air inlet and an air outlet which are in communication with the flow guide channel, the flow guide member is further provided with an inclined first flow guide plate at the air outlet, and the first flow guide plate is located at the lower part of the air outlet side of the heat dissipation module, so that the airflow blown transversely from the air outlet side of the heat dissipation module becomes obliquely downward, and the flow guide channel is further provided with an inclined second flow guide plate, so that the airflow flowing through the flow guide channel is blown to the upper part of the air outlet side of the heat dissipation module.

[0006] In a further improved technical scheme, the flow guide member is provided with a cover plate which is inclined toward the fan body at the air inlet, the air inlet comprises a plurality of air inlet holes, and the air inlet holes are uniformly arranged on the cover plate.

[0007] In a further improved technical scheme, the cover plate is provided with a flow guide groove which faces the fan body at the position between adjacent air inlet holes.

[0008] Further improved technical solutions, the guide flow piece is provided with a baffle extending to the fan body on both sides of the cover plate.

[0009] Further improved technical solutions, the guide flow channel of the guide flow piece is surrounded by an inner side plate, an outer side plate and two side edge plates, the inner side plate is close to the fan body, the outer side plate is away from the fan body and has a spacing between the inner side plate, the two side edge plates are respectively fixedly connected to the two sides of the inner side plate and the outer side plate, and the bottom surface of the inner side plate is flush with the bottom surface of the fan body.

[0010] Further improved technical solutions, the second guide plate is transversely arranged on the inner side surface of the outer side plate.

[0011] Further improved technical solutions, the fan body is provided with a through hole on both sides of the top surface for screwing and threadedly connecting with the heat dissipation module, and the guide flow piece is provided with a strip-shaped hole corresponding to one side of the through hole.

[0012] As described above, the present application has the beneficial effects that: the fan body is fixedly connected to the heat dissipation module, and the first guide plate of the guide flow piece is located on the air outlet side of the heat dissipation module; when the fan body works, the airflow generated by the fan body blows to the heat dissipation module, carries away the heat of the heat dissipation module and blows out from the air outlet side, is guided by the first guide plate, and the direction of the hot airflow changes to be obliquely downward; since the hot airflow flows away from the air outlet quickly to generate low pressure, the cold airflow above is driven to flow into the guide flow channel from the air inlet, blows to the upper end of the air outlet side of the heat dissipation module after the second guide plate, further dissipates heat of the heat dissipation module, and the heat dissipation efficiency is improved. At the same time, since the cold airflow is generated by the airflow that has flowed through the heat dissipation module, the cold airflow is the reuse of the airflow that has been used, the utilization rate of energy is improved, and the energy-saving effect is better. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a schematic diagram of the three-dimensional structure of the present application;

[0014] Figure 2 is a schematic diagram of the three-dimensional structure of the present application;

[0015] In the drawings:

[0016] Fan body 1; shell 11; air duct 111; fan assembly 12; guide flow piece 2; first guide plate 21; second guide plate 22; cover plate 23; air inlet hole 24; guide flow groove 25; side plate 26; outer side plate 27; side edge plate 28; strip-shaped hole 29; heat dissipation module 3; heat dissipation fin 31. DETAILED DESCRIPTION

[0017] In order to make the technical problems to be solved by the present application, technical solutions and beneficial effects clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.

[0018] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component.

[0019] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0020] In addition, the terms "first", "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0021] Referring to Figure 1 and Figure 2 An efficient energy-saving cooling fan, comprising a fan body 1 and a flow guide 2, wherein the fan body 1 is detachably fixedly connected to the top surface of a cooling module 3. Some existing heat sources of electrical appliances or electronic equipment are provided with cooling modules 3, and the fan body 1 can be fixedly connected to these cooling modules 3. Such cooling modules 3 generally include a base and a plurality of parallel cooling fins 31 arranged on the base. When air flows towards the top of the cooling module 3, it will enter the interior from the gap between the two sides of the cooling fins 31 and flow out transversely from the positions close to the lower side of the two sides, which are the air outlet sides.

[0022] The flow guide 2 of the above embodiment is detachably fixedly connected to the fan body 1, the flow guide 2 is internally provided with a flow guide channel, the upper end and the lower end of the flow guide 2 are respectively provided with an air inlet and an air outlet which are in communication with the flow guide channel, the flow guide 2 is further provided with an inclined first flow guide plate 21 at the air outlet, and the first flow guide plate 21 is located at the air outlet side of the heat dissipation module 3, so that the airflow blown transversely from the air outlet side of the heat dissipation module 3 becomes obliquely downward, and the flow guide channel is further provided with an inclined second flow guide plate 22, so that the airflow flowing through the flow guide channel is blown to the upper end of the air outlet side of the heat dissipation module 3.

[0023] When the fan body 1 of the above embodiment works, the airflow is blown to the heat dissipation module 3 to take away the heat of the heat dissipation module 3 and blow transversely from the air outlet side, which is the main heat dissipation. After the hot airflow is guided by the first flow guide plate 21, the direction of the airflow becomes obliquely downward, the fast-flowing hot airflow generates low pressure to drive the cold airflow above to flow into the flow guide channel from the air inlet, and after the airflow passes through the second flow guide plate 22, the airflow is blown to the upper end of the air outlet side of the heat dissipation module 3 to dissipate heat to the heat dissipation module 3, which is the auxiliary heat dissipation. Overall, the heat dissipation effect of the heat dissipation fan is improved. Due to the reuse of the hot airflow, the new cold airflow is generated to dissipate heat, which is the reuse of the airflow that has been used, and the same heat dissipation effect can be achieved with lower energy consumption, the energy utilization rate is high, and the energy saving is better.

[0024] In an embodiment, referring to Figure 1 and Figure 2 , the flow guide 2 is provided with a cover plate 23 inclined to the fan body 1 at the air inlet, the air inlet includes a plurality of air inlet holes 24, and the air inlet holes 24 are uniformly arranged on the cover plate 23. In addition, the cover plate 23 is provided with a flow guide groove 25 facing the fan body 1 at the position between adjacent air inlet holes 24. In this way, part of the airflow flowing to the air inlet enters the flow guide channel from the air inlet hole 24, and the remaining part of the airflow flows to the fan body 1, thereby improving the air volume of the fan body 1, and the flow guide groove 25 arranged thereon can relatively better concentrate the airflow to flow to the fan body 1. The baffle 281 extending to the fan body 1 is arranged on the flow guide 2 located on both sides of the cover plate 23, so that the airflow can be better concentrated at the cover plate 23 for utilization.

[0025] In an embodiment, referring to Figure 1 and Figure 2The guide flow passage of the guide flow member 2 is surrounded by an inner side plate 26, an outer side plate 27 and two side plates 28. The inner side plate 26 is close to the fan body 1. The outer side plate 27 is away from the fan body 1 and has a space with the inner side plate 26. The two side plates 28 are respectively fixedly connected to the two sides of the inner side plate 26 and the outer side plate 27. The bottom surface of the inner side plate 26 is flush with the bottom surface of the fan body 1. The fan body 1 adopts the prior art, including a shell 11 with a guide flow cylinder 111 and a fan assembly 12 in the guide flow cylinder 111. The part between the upper plate and the lower plate of the shell 11 outside the guide flow cylinder 111 is hollow. Therefore, the bottom surface of the inner side plate 26 is flush with the bottom surface of the fan body 1, preventing the air flow from flowing away between the upper plate and the lower plate and reducing the heat dissipation efficiency.

[0026] In the above embodiment, the second guide flow plate 22 is arranged transversely on the inner side of the outer side plate 27. The end of the second guide flow plate 22 is spaced apart from the inner side plate 26 to allow the air flow to flow out. The connection between the second guide flow plate 22 and the outer side plate 27 is high, and the air flow blows obliquely downward to the upper part of the heat dissipation module 3. Since the fan body 1 directly blows to the top of the heat dissipation module 3, the air flow flows to the lower part of the heat dissipation module 3. Thus, the air flow does not flow out from the upper part of the air outlet side, but basically flows out from the lower part of the air outlet side. Due to the influence of the high-speed air flow in the upper part of the heat dissipation module 3, the air flow in the guide flow passage is attracted to the low pressure of the upper part of the air outlet side. In addition, the second guide flow plate 22 can basically make the air flow in the guide flow passage flow to the upper part of the air outlet side. Preferably, the end of the second guide flow plate 22 is arranged close to the air outlet side of the heat dissipation module 3, which can better guide the air flow to the heat dissipation module 3 and better utilize the low pressure of the air flow in the upper part of the heat dissipation module 3 to increase the air flow in the passage.

[0027] In an embodiment, the fan body 1 is provided with through holes on both sides of the top surface for screws to pass through and be screwed with the heat dissipation module 3. The guide flow member 2 is provided with a strip-shaped hole 29 corresponding to one of the through holes. The strip-shaped hole 29 is convenient for the installation of the guide flow member 2. When the heat dissipation module 3 is larger than the fan body 1, the guide flow member 2 can be moved outward, and then the screws are passed through the strip-shaped hole 29 and the through hole to be screwed and locked with the heat dissipation module 3.

[0028] The above embodiments are only explanations of the present application and are not limitations of the present application. Those skilled in the art can make modifications to the embodiments without creative contribution after reading the present specification, as long as the modifications are within the scope of the claims of the present application and are protected by the patent law.

Claims

1. A high-efficiency and energy-saving cooling fan, comprising a fan body that can be fixedly connected to the top surface of a heat dissipation module, characterized in that: It also includes a guide component fixedly connected to the fan body. The guide component has an internal guide channel. The upper and lower ends of the guide component are respectively provided with an air inlet and an air outlet communicating with the guide channel. The guide component also has an inclined first guide plate at the air outlet, located at the lower part of the air outlet side of the heat dissipation module, causing the airflow blowing horizontally from the air outlet side of the heat dissipation module to become obliquely downward. The guide channel also has an inclined second guide plate, causing the airflow flowing through the guide channel to blow towards the upper part of the air outlet side of the heat dissipation module. The guide component has a cover plate at the air inlet that is inclined towards the fan body. The air inlet includes multiple... A number of air intake holes are evenly arranged on the cover plate. The cover plate has guide grooves facing the fan body at positions between adjacent air intake holes. The guide member has baffles extending towards the fan body on both sides of the cover plate. The guide channel of the guide member is surrounded by an inner side plate, an outer side plate and two side plates. The inner side plate is close to the fan body, and the outer side plate is far from the fan body and has a gap between it and the inner side plate. The two side plates are fixedly connected to the inner side plate and the outer side plate respectively. The bottom surface of the inner side plate is flush with the bottom surface of the fan body. The second guide plate is arranged laterally on the inner side of the outer side plate.

2. The high-efficiency and energy-saving cooling fan according to claim 1, characterized in that: Both sides of the top surface of the fan body are provided with through holes for screws to pass through and connect with the heat dissipation module by threads. The air guide is provided with a strip hole corresponding to one of the through holes.

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