A self-heat-conducting heat-dissipating fan

Abstract

The application relates to a heat dissipation fan, and discloses a heat dissipation fan with self-heat conduction, which comprises a base, a wind guide cylinder and a fan assembly arranged in the wind guide cylinder. The base comprises a metal bottom ring with high heat conduction, a plurality of metal heat dissipation fins with high heat conduction vertically arranged on the bottom ring and a plurality of connecting blocks. The connecting blocks are uniformly arranged and fixedly connected to the bottom ring. The fan assembly is detachably fixedly connected to each connecting block, and the fan assembly is tightly pressed against the wind guide cylinder and tightly adheres to the heat dissipation fins. Part of the heat dissipation fins extends into the wind guide cylinder and is located below the fan assembly. The metal bottom ring and the heat dissipation fins with high heat conduction are used as the base, so that the passive auxiliary heat conduction and heat dissipation are realized, the heat dissipation efficiency of the heat dissipation fan is improved, the same heat source can be cooled with lower energy consumption compared with the prior art, and the energy-saving effect of reducing energy consumption is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of heat dissipation fan, in particular to a self-heat-conducting heat dissipation fan. BACKGROUND

[0002] Common household appliances or electronic devices, such as microwave ovens, televisions or computer hosts, often need to install heat dissipation fans to dissipate heat from the internal heat source and prevent it from being damaged due to high temperature. The structure of the existing heat dissipation fan is similar, mainly including a base, a wind guide cylinder opened on the base, a fan blade located in the wind guide cylinder, and a motor for driving the fan blade to rotate. When in use, the base of the heat dissipation fan is installed and fixed on the heat source or the heat dissipation part of the heat source, the motor drives the fan blade to rotate to generate airflow, which is blown from the wind guide cylinder to the heat source or the heat dissipation part to take away heat and achieve cooling. However, the existing heat dissipation fan only relies on airflow to dissipate heat, and the base directly in contact with the heat source or the heat dissipation part is usually a plastic part, which does not have the function of further heat conduction and dissipation. Therefore, the overall heat dissipation efficiency is low, and the energy consumption of the heat dissipation mode relying only on the motor to drive the fan blade is relatively high. SUMMARY

[0003] In view of the above deficiencies of the prior art, the present application provides a heat dissipation fan whose own base can conduct heat and help reduce energy consumption.

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

[0005] A self-heat-conducting heat dissipation fan, comprising a base, a wind guide cylinder and a fan assembly arranged in the wind guide cylinder, the base comprising a high-thermal-conductivity metal bottom ring, a plurality of high-thermal-conductivity metal heat dissipation fins vertically arranged on the bottom ring, and a plurality of connecting blocks, the plurality of connecting blocks being uniformly arranged and fixedly connected to the bottom ring, the fan assembly being detachably fixedly connected to each connecting block, and the fan assembly being tightly pressed against the wind guide cylinder so as to be tightly attached to the heat dissipation fins, a part of the heat dissipation fins extending into the wind guide cylinder and being located below the fan assembly.

[0006] Further improved technical scheme, the bottom ring is surrounded by a plurality of bottom plates opposite in head and tail, and the opposite head and tail of adjacent bottom plates are fixedly connected to the bottom surface of one connecting block, and each bottom plate is provided with a plurality of heat dissipation fins.

[0007] Further improved technical scheme, the opposite head and tail of the plurality of bottom plates are all welded to the bottom surface of the connecting block.

[0008] Further improved technical scheme, a placing groove is formed on each heat dissipation fin, the wind guide cylinder is arranged in the placing groove of each heat dissipation fin, and there is a spacing between the bottom surface of the wind guide cylinder and the bottom plate.

[0009] Further improved technical solutions, each of the bottom plate has elasticity and is small arc concave arc.

[0010] Further improved technical solutions, the air duct has the same number of cylinder plates as the connecting block, and the inner side of the fan assembly is attached to the connecting block at the opposite ends of the cylinder plate.

[0011] Further improved technical solutions, the fan assembly includes a bracket, a drive member disposed below the bracket, and a fan blade fixedly connected to the output end of the drive member, the bracket has the same number of end portions as the connecting block, each end portion is provided with a through hole, each connecting block is provided with a radial strip hole, and the through hole and the strip hole are provided for the screw to pass through and be threadedly connected with external components.

[0012] Further improved technical solutions, the air duct is made of the same material as the heat sink.

[0013] In summary, the base of the application adopts a high-thermal-conductivity metal bottom ring, a plurality of high-thermal-conductivity metal heat sinks are arranged on the bottom ring, and the bottom ring can transfer part of the heat of the heat source to the heat sinks for heat dissipation when installed and used, thereby enhancing the heat dissipation capacity of the heat dissipation fan. In addition, part of the heat sinks extends into the air duct below the fan assembly, and the airflow of the fan assembly during operation can dissipate heat from the heat sinks. The application uses a high-thermal-conductivity metal bottom ring and heat sinks as the base, which plays a passive auxiliary heat conduction and dissipation role, improves the heat dissipation efficiency of the heat dissipation fan, and can dissipate heat from the same heat source with lower energy consumption compared to the prior art, thereby achieving the energy-saving effect of reducing energy consumption. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 is a schematic diagram of the three-dimensional structure of the application;

[0015] Fig. 2 is a schematic diagram of the side view structure of the application;

[0016] Fig. 3 is a schematic diagram of the exploded three-dimensional structure of the application.

[0017] In the drawings:

[0018] Base 1; bottom plate 11; heat sink 12; placement groove 121; connecting block 13; strip hole 131; air duct 2; cylinder plate 21; notch 211; fan assembly 3; bracket 31; through hole 311; drive member 32; fan blade 33. DETAILED DESCRIPTION

[0019] 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.

[0020] 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.

[0021] 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 a limitation on the present application.

[0022] 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.

[0023] Referring to Figs. 1 to 3 A self-heat-conducting and heat-dissipating heat-dissipating fan, comprising a base 1, an air guide cylinder 2 and a fan assembly 3 arranged in the air guide cylinder 2, the base 1 comprises a metal base ring with high thermal conductivity, a plurality of metal heat dissipation fins 12 with high thermal conductivity vertically arranged on the base ring, and a plurality of connecting blocks 13, the plurality of connecting blocks 13 are uniformly arranged and fixedly connected to the base ring, the fan assembly 3 is detachably fixedly connected to each connecting block 13, and the fan assembly 3 is tightly pressed against the air guide cylinder 2 and tightly adheres to the heat dissipation fins 12, a part of the heat dissipation fins 12 extends into the air guide cylinder 2 and is located below the fan assembly 3.

[0024] The metal base and the fins 12 are preferably made of common copper or aluminum alloy material. After installation, the base 1 plays a role of heat conduction and heat dissipation, can enhance the heat dissipation capacity of the heat dissipation fan, and the base 1 is passively cooled, without consuming energy, so as to reduce the overall energy consumption of the heat dissipation fan and achieve the energy-saving effect. Further, the air duct 2 is made of the same material as the fins 12, so that heat is transferred between the air duct 2 and the fins 12, the air duct 2 also plays a role of increasing the heat dissipation area and improving the passive cooling capacity, further reducing the energy-saving effect.

[0025] In an embodiment, as shown in Fig. 1 The base is surrounded by a plurality of bottom plates 11 arranged in head-to-tail mode, and the head-to-tail ends of adjacent bottom plates 11 are fixedly connected to the bottom surface of a connecting block 13. Each bottom plate 11 is provided with a plurality of fins 12. Preferably, the connecting block 13 and the base 1 are made of the same metal material, and the head-to-tail ends of the plurality of bottom plates 11 are fixedly connected to the bottom surface of the connecting block 13 by welding, so as to ensure the firmness of the connection.

[0026] In an embodiment, as shown in Fig. 3 Each fin 12 is provided with a placing groove 121, and the air duct 2 is placed in the placing groove 121 of each fin 12, and the bottom surface of the air duct 2 has a spacing with the bottom plate 11. When the fan assembly 3 is working, in addition to the part of the air flow blowing to the fins 12 in the air duct 2 playing a role of heat dissipation, the air flow at the air duct 2 and the outlet is fast, which drives the air flow around the spacing between the bottom surface of the air duct 2 and the bottom plate 11 to flow to the outlet of the air duct 2, so that the upper surfaces of the two side surfaces and the bottom edge of the fin 12 can have air flow flowing therethrough, playing a further heat dissipation role. In addition, the part of the fin 12 in the air duct 2 is arranged vertically, which can block the rotation of the air flow from the fan assembly 3, so that the air flow blows to the heat source relatively vertically, reduces the divergence of the air flow, and plays a role of auxiliary air guiding.

[0027] In an embodiment, as shown in Fig. 2As shown, each of the bottom plates 11 is arc-shaped, elastic and concave. In this way, the bottom surface of the bottom plate 11 can be closely attached to the installation plane, and the heat conduction effect is better. Since the bottom plate 11 is arc-shaped, the shape of the entire base 1 will be slightly expanded after installation. To avoid pulling and interfering with the air duct 2, the air duct 2 is formed by several cylinder plates 21 arranged end to end. The number of cylinder plates 21 is the same as the number of connecting blocks 13, and the connecting blocks 13 are attached to the inner side of the fan assembly 3 at the ends of the cylinder plates 21. In this way, when the shape of the base 1 is expanded, the distance between adjacent cylinder plates 21 will also increase, and the area enclosed by the entire air duct 2 will also increase, following the deformation of the base 1. At the same time, the inner side of the connecting block 13 facing the fan assembly 3 can seal the distance between adjacent cylinder plates 21, ensuring good flow guiding effect. In addition, the top of the end-to-end connection of adjacent cylinder plates 21 is provided with a notch 211, and the fan assembly 3 is tightly pressed against the top surface of the notch 211. The notch 211 can prevent the cylinder plate 21 from being dislocated and disconnected from the fan assembly 3.

[0028] As shown in the drawings, Fig. 3 The fan assembly 3 includes a bracket 31, a driving member 32 arranged below the bracket 31, and a fan blade 33 fixedly connected to the output end of the driving member 32. The bracket 31 has the same number of end portions as the connecting blocks 13, and each end portion is provided with a through hole 311. To cooperate with the deformation of the base 1 during installation, each connecting block 13 is provided with a radial strip hole 131. The through hole 311 and the strip hole 131 are provided for the screw to pass through and be threadedly connected to the external components. During screw installation, the strip hole 131 provides space for the deformation of the base 1 during installation.

[0029] The above embodiments are only an explanation of the present application, and are not a limitation of the present application. Those skilled in the art can make modifications to the embodiments without creative contribution, as long as the modifications are within the scope of the claims of the present application.

Claims

1. A self-conducting heat dissipation cooling fan, comprising a base, an air guide tube, and a fan assembly disposed within the air guide tube, characterized in that: The base includes a high thermal conductivity metal base ring, multiple high thermal conductivity metal heat sinks vertically disposed on the base ring, and multiple connecting blocks. The multiple connecting blocks are evenly arranged and fixedly connected to the base ring. The fan assembly is detachably and fixedly connected to each connecting block, and the fan assembly presses the air guide tube tightly against the heat sink. A portion of the heat sink extends into the air guide tube and is located below the fan assembly. The base ring is formed by multiple bottom plates with their ends facing each other, and the ends of adjacent bottom plates are fixedly connected to the bottom surface of one of the connecting blocks. Each bottom plate is provided with multiple heat sinks, and each heat sink has a placement groove. The air guide tube is placed in the placement groove of each heat sink, and there is a gap between the bottom surface of the air guide tube and the bottom plate. Each bottom plate is elastic and has a slightly concave arc shape.

2. The self-conducting heat dissipation cooling fan according to claim 1, characterized in that: The bottom plates are welded and fixed to the bottom surface of the connecting block at their opposite ends.

3. A self-conducting heat dissipation cooling fan according to claim 1, characterized in that: The air guide duct is formed by two cylindrical plates, the same number as the connecting blocks, facing each other end to end. The two cylindrical plates are attached to the inner side of the connecting blocks facing the fan assembly at the end-to-end position. The fan assembly is pressed tightly against the top surface of the top notch at the end-to-end position of the adjacent cylindrical plates.

4. A self-conducting heat dissipation cooling fan according to claim 1, characterized in that: The fan assembly includes a bracket, a drive unit located below the bracket, and fan blades fixedly connected to the output end of the drive unit. The bracket has the same number of ends as the connecting blocks, and each end is provided with a through hole. Each connecting block is provided with a radially spaced slot. The through holes and slots allow screws to pass through and be threaded to external components.

5. A self-conducting heat dissipation cooling fan according to any one of claims 1 to 4, characterized in that: The air duct is made of the same material as the heat sink.

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