Cooling fan

Abstract

The utility model discloses a cooling fan which comprises a frame body, one side face of the frame body is provided with at least one air guide assembly and a supporting part, each air guide assembly comprises two frame body supporting columns, the multiple frame body supporting columns are arranged at intervals, an air exhaust channel is formed between the multiple frame body supporting columns and one side face of the frame body, and the supporting part is connected with the multiple frame body supporting columns; the driving unit is arranged on the supporting part and is positioned at the central position of the frame body; the fan blade is rotationally connected to the driving unit, and the driving unit is configured to drive the fan blade to rotate; wherein the frame body supporting columns correspond to one side face of the frame body, each frame body supporting column is provided with at least two air guide faces, and the air guide faces are located in the air exhaust channel. Therefore, the thin-type heat dissipation structure has the advantage of being thin, the rebounding air flow is reduced through the exhaust channel, and then the heat dissipation effect is improved when the thin-type heat dissipation structure is combined with a heating part on the top of an electronic device for use.

Description

Technical Field

[0001] The utility model relates to fan technology, in particular to an axial exhaust or blowing type heat dissipation fan. Background Art

[0002] As the performance of electronic devices continues to improve, heat dissipation devices have become an indispensable part of existing electronic devices. If the heat generated by electronic devices is not properly dissipated, the performance of the electronic devices may deteriorate or even be damaged. Therefore, high-performance heat dissipation devices have always been the subject of active research and development in the electronics industry.

[0003] However, integrated circuits are widely used in 3C devices. As we all know, high temperature is the enemy of integrated circuits. High temperature will not only cause unstable system operation and shorten service life, but may even burn some components. The heat that causes high temperature does not come from outside the 3C device, but from inside the 3C device, or inside the integrated circuit. The function of the heat dissipation device is to absorb this heat and then dissipate it into or outside the chassis to ensure the normal temperature in the 3C device.

[0004] In today's heat dissipation devices, the most widely used combination is a fan plus a heat dissipation fin group. Among the types of fans, they can generally be divided into axial flow fans and centrifugal fans according to their air inlet and air outlet directions. Among them, axial flow fans have the advantages of high efficiency, large air volume and low noise. They are generally installed on the heat dissipation fin group. Therefore, the cooler air flow can be blown into the heat dissipation fin group from the air inlet by the fan, and after passing through the heat dissipation fins, the hot air is blown out through the air outlet.

[0005] In view of the above-mentioned shortcomings, the inventor has studied ways to improve these shortcomings, and finally the present application was produced. Utility Model Content

[0006] The utility model aims to provide a heat dissipation fan which can reduce rebound airflow and thus improve the heat dissipation effect.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] A heat dissipation fan comprises a frame, at least one air guide component and a support portion are arranged on one side of the frame, each air guide component comprises two frame pillars, a plurality of frame pillars are arranged at intervals, an exhaust passage is formed between the plurality of frame pillars and a side of the frame, and the support portion connects the plurality of frame pillars; a driving unit is arranged on the support portion and is located at the central position of the frame; and a fan blade is rotatably connected to the driving unit, and the driving unit is configured to drive the fan blade to rotate; wherein the plurality of frame pillars correspond to each other on one side of the frame, and the plurality of frame pillars respectively have at least two air guide surfaces, and the air guide surfaces are located in the exhaust passage, and the heat dissipation fan is an exhaust fan or a blowing fan.

[0009] As a preferred solution of the above-mentioned heat dissipation fan, the frame is in a rectangular frame shape, and a plurality of frame support columns are respectively arranged on a side surface of the end of the frame.

[0010] As a preferred solution of the above-mentioned cooling fan, the frame is provided with two air guide components, and a plurality of frame pillars of the air guide components are respectively arranged on a side surface of the four ends of the frame, wherein an exhaust channel is provided between every two frame pillars.

[0011] As a preferred solution of the above-mentioned heat dissipation fan, a hollow circular groove is provided in the center of the frame, and the fan blades are located in the circular groove.

[0012] As a preferred solution of the above-mentioned heat dissipation fan, the frame support has two wind guide surfaces and a windward curved surface, the windward curved surface is located between the plurality of wind guide surfaces, and the windward curved surface is connected to the groove surface of the circular groove.

[0013] As a preferred solution of the above-mentioned heat dissipation fan, the air guide surfaces between the plurality of frame pillars are arranged in parallel.

[0014] As a preferred solution of the above-mentioned heat dissipation fan, the air guide surface between the plurality of frame pillars is arranged in an inclined surface, so that the air duct openings of the plurality of exhaust passages are arranged in an expanded or contracted manner toward the outside of the frame.

[0015] As a preferred solution of the above-mentioned heat dissipation fan, at least one air guide surface of the plurality of frame pillars is a curved surface.

[0016] As a preferred solution of the above-mentioned heat dissipation fan, the support portion has a plurality of connecting ribs, and vents are formed between adjacent connecting ribs. A wire groove is provided on one of the connecting ribs, and the wire groove is used to place at least one conductive wire group connected to the drive unit.

[0017] As a preferred solution of the above-mentioned cooling fan, the cooling fan is configured to be assembled to at least one cooling module, the cooling fan is located on the upper side of the cooling module, and the cooling fan is configured to exhaust or blow air in the same linear direction relative to the cooling module.

[0018] The heat dissipation fan of the present application can be assembled in a heat dissipation module, and the present application mainly adopts the setting of the wind guide component to allow the air flow to enter or be discharged through the fan blades, and because an exhaust passage is formed between the multiple frame pillars and a side surface of the frame, therefore, when the air flow enters or flows out from the fan blades and flows through the exhaust passage, part of the air flow blown toward the heat dissipation module can be guided to the periphery of the heat dissipation module, thereby reducing the intensity of the air flow rebounding from the heat dissipation module and reducing turbulence. Moreover, because the air flow is dispersed from the exhaust passage, it can drive the air flow around the heat dissipation module to achieve the effect of improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the first embodiment of the present application;

[0020] Figure 2 It is a bottom view of the first embodiment of the present application;

[0021] Figure 3 It is a side view of the first embodiment of the present application;

[0022] Figure 4 It is a partial schematic diagram of the second embodiment of the present application;

[0023] Figure 5 It is a partial enlarged schematic diagram of the third embodiment of the present application;

[0024] Figure 6 This is a schematic diagram of the use status of the first embodiment of the present application;

[0025] Figure 7 This is a schematic diagram of the usage status of the first embodiment of the present application.

[0026] In the figure:

[0027] 100, cooling fan; 10, frame; 11, air guide assembly; 111, frame support; 1111, pressurized surface; 1112, windward curved surface; 12, supporting portion; 121, connecting ribs; 1211, wire trough; 13, circular groove; 20, drive unit; 30, fan blades; 101, pressurized air duct; 200, cooling module. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0030] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable 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 the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0031] Unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0033] See also Figure 1 and Figure 2 , and match Figure 3 FIG. 1 is a perspective view, a bottom view and a side view of a first embodiment of the present invention, which discloses a heat dissipation fan 100, and includes:

[0034] A frame 10, a side of the frame 10 is provided with two sets of air guide components 11 and a support portion 12, each air guide component 11 includes two frame pillars 111, the two frame pillars 111 are arranged at intervals, and an exhaust passage 101 is formed between the two frame pillars 111 and a side of the frame 10, and the support portion 12 connects the two frame pillars 111; in this embodiment, please refer to Figures 1 to 3As shown, the frame 10 is in the shape of a rectangular frame 10, and a hollow circular groove 13 is provided in the center of the frame 10, and a plurality of frame pillars 111 are respectively provided on one side of the end of the frame 10, and the frame pillars 111 in the two sets of air guide components 11 are respectively provided on one side of the four ends of the frame 10, wherein an exhaust passage 101 is provided between every two frame pillars 111. Please refer to Figure 2 As shown, each frame support 111 has two wind guide surfaces 1111 and a windward curved surface 1112 . The windward curved surface 1112 is located between the two wind guide surfaces 1111 , and the windward curved surface 1112 is connected to the groove surface of the circular groove 13 . The wind guide surfaces 1111 between the frame supports 111 are arranged in parallel.

[0035] A driving unit 20 is disposed on the supporting portion 12 and is located at the center of the frame 10. In this embodiment, the driving unit 20 can be but is not limited to an electric motor. In addition, the supporting portion 12 has a plurality of connecting ribs 121, and vents are formed between adjacent connecting ribs 121. A wire groove 1211 is provided on one of the connecting ribs 121, and the wire groove 1211 is used to place at least one conductive wire group (not shown) connected to the driving unit 20.

[0036] A fan blade 30 is rotatably connected to a driving unit 20, and the driving unit 20 is configured to drive the fan blade 30 to rotate. The fan blade 30 is located in the circular groove 13. In this embodiment, the fan blade 30 may include but is not limited to an odd number of blades, wherein the odd number of blades can reduce the resonance generated by the blade when rotating at a high speed, thereby increasing the service life of the fan blade 30. In addition, in order to increase the air volume when the fan blade 30 rotates at a high speed, the blade is designed to be spiral, and the front end surface of the blade is designed to be blade-like when the blade rotates. The spiral shape can increase the air volume, and the blade-like shape can reduce the resistance of the blade to the airflow and reduce noise, so that the fan blade 30 complies with the principles of fluid mechanics, and can reduce the wear of the fan blade 30 and increase the service life of the fan blade 30.

[0037] For further explanation, please refer to Figure 6 As shown, Figure 6 This is a schematic diagram of the usage status in the first embodiment of the present application. The heat dissipation fan 100 of the present application is an exhaust fan or a blowing fan. The present embodiment takes the blowing fan as an example, but does not limit the implementation of the present application. As shown in the figure, the heat dissipation fan 100 of the present application is configured to be assembled on the heat dissipation module 200, the heat dissipation fan 100 is located on the upper side of the heat dissipation module 200, and the heat dissipation fan 100 is configured to perform downward blowing heat dissipation in the same linear direction relative to the heat dissipation module 200.

[0038] In order to further understand the structural features, technical means and expected effects of the present application, the use of the present application is described below. It is believed that this will provide a deeper and more specific understanding of the present application, as described below:

[0039] See also Figure 2 , and match Figure 6 and Figure 7 As shown, a bottom view and a schematic diagram of the use state in the first embodiment of the present application; in the use state, the present application mainly uses the setting of the wind guide component 11 to allow the air flow to enter or be discharged through the fan blades 30, and an exhaust channel 101 is formed between the multiple frame pillars 111 and a side surface of the frame 10. Therefore, when the air flow enters or flows out from the fan blades 30 and flows through the exhaust channel 101, the rebound air flow can be reduced, so that the fan blades can more efficiently blow air to the fins of the heat dissipation module 200; it can be further known that the present application can make the air flow The air flow is evenly distributed in the heat dissipation module 200 to dissipate the heat generated by the heat source; therefore, compared with the existing heat dissipation fan 100 structure, in the heat dissipation fan 100 of the present application, through the design of the exhaust channel 101, it can guide part of the air flow blown to the heat dissipation module 200 to the periphery of the heat dissipation module, thereby reducing the intensity of the air flow rebounding from the heat dissipation module 200 to reduce turbulence. In addition, because the air flow is dissipated from the exhaust channel 101, it can drive the air flow around the heat dissipation module 101 to achieve the effect of improving the heat dissipation efficiency.

[0040] Please refer to Figure 4 As shown, this is a partial schematic diagram of the second embodiment of the present application; compared with the first embodiment, the difference between this embodiment is that the air guide surface 1111 between every two frame pillars 111 is arranged in an inclined surface, so that the air duct opening of each exhaust channel 101 is expanded or contracted toward the outside of the frame 10, and this embodiment can also achieve the technical effects and functions of the first embodiment.

[0041] Please continue reading Figure 5 As shown, this is a partial enlarged schematic diagram of the third embodiment of the present application; compared with the first embodiment, the difference between this embodiment is that the air guide surface 1111 of the frame support 111 is a curved surface. The function of the curved surface is not only to guide the flow direction of the airflow, but also to reduce the flow resistance of the airflow in the radial air outlet direction on both sides of the fan, and this embodiment can also achieve the technical effects and functions of the first embodiment.

[0042] In summary, the features of this application and the expected effects that can be achieved are described as follows:

[0043] Firstly, the present application forms an exhaust passage 101 between a plurality of frame pillars 111 and a side surface of the frame 10. When in use, the exhaust passage 101 can be used to guide part of the airflow blowing toward the heat dissipation module 200 to the periphery, thereby reducing the strength of the airflow rebounding from the heat dissipation module 200 and thus reducing turbulence. Also, because the airflow is dispersed from the exhaust passage 101, it can drive the airflow around the heat dissipation module 200 to improve the heat dissipation effect of the heat dissipation fan 100.

[0044] Secondly, the present application has the advantages of high efficiency, large air convection volume and low noise, and at the same time makes the heat dissipation fan 100 thin and high-performance, which meets the requirements of today's thin electronic products.

[0045] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A cooling fan, characterized in that: Included are: A frame, wherein at least one air guide assembly and a support portion are disposed on one side of the frame, each air guide assembly comprises two frame pillars, a plurality of the frame pillars are disposed at intervals, an exhaust passage is formed between the plurality of the frame pillars and the side of the frame, and the support portion is connected to the plurality of the frame pillars; a driving unit, disposed on the supporting portion and located at the center of the frame; and a fan blade, rotatably connected to the driving unit, wherein the driving unit is configured to drive the fan blade to rotate; Among them, some of the frame pillars correspond to each other on one side of the frame, and some of the frame pillars respectively have at least two wind guide surfaces, some of the wind guide surfaces are located in the exhaust channel, and the cooling fan is an exhaust fan or a blowing fan.

2. The heat dissipation fan according to claim 1, characterized in that: The frame is in a rectangular frame shape, and a plurality of frame support columns are respectively arranged on a side surface of an end portion of the frame.

3. The heat dissipation fan according to claim 2, characterized in that: The frame is provided with two air guide components, and a plurality of frame pillars of a plurality of the air guide components are respectively arranged on a side surface of the four ends of the frame, wherein an exhaust passage is provided between every two frame pillars.

4. The cooling fan according to any one of claims 1 or 2, characterized in that: The frame body has a hollow circular groove in the center, and the fan blades are located in the circular groove.

5. The heat dissipation fan according to claim 4, characterized in that: The frame support column has two wind guide surfaces and a windward curved surface. The windward curved surface is located between a plurality of the wind guide surfaces, and the windward curved surface is connected to the groove surface of the circular groove.

6. The heat dissipation fan according to claim 5, characterized in that: The wind guide surfaces between the plurality of frame pillars are arranged in parallel.

7. The heat dissipation fan according to claim 5, characterized in that: The air guide surfaces between the plurality of frame pillars are arranged in an inclined manner, so that the air duct openings of the plurality of exhaust passages are arranged in an expanded or contracted manner toward the outside of the frame.

8. The heat dissipation fan according to claim 5, characterized in that: At least one wind guide surface of a plurality of the frame supports is a curved surface.

9. The heat dissipation fan according to claim 1, characterized in that: The support portion has a plurality of connecting ribs, and vents are formed between adjacent connecting ribs. A wire groove is provided on one of the connecting ribs, and the wire groove is used to place at least one conductive wire group connected to the driving unit.

10. The heat dissipation fan according to claim 1, characterized in that: The heat dissipation fan is configured to be assembled and connected to at least one heat dissipation module. The heat dissipation fan is located on the upper side of the heat dissipation module, and the heat dissipation fan is configured to exhaust or blow air in the same linear direction relative to the heat dissipation module.

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