Cooling fan capable of being assembled by rotating and clamping

Abstract

The utility model belongs to the technical field of cooling fans, and particularly relates to a rotating clamping assembling cooling fan which comprises a main body, fan blades, a first rotating connecting piece and a combined rotating connecting piece, the fan blades are installed at the rotating end of the main body, the four corners of the main body are each provided with a quadrant fan-shaped notch, and the first rotating connecting piece is connected with the combined rotating connecting piece. The first rotary connecting pieces can be rotationally connected with the fan-shaped notches in a clamped mode to form smooth rectangular corners, the combined rotary connecting pieces are semicircular, the combined rotary connecting pieces can be rotationally connected with the two fan-shaped notches in the different main bodies in a clamped mode, and through the structure, the cooling fans can be conveniently assembled and disassembled.

Description

Technical Field

[0001] This utility model belongs to the field of cooling fan technology, and in particular relates to a rotating snap-fit ​​assembleable cooling fan. Background Technology

[0002] With the rapid development of electronic technology, the operating speed of heat-generating electronic components such as central processing units is getting faster and faster, and the heat generated during their operation is also increasing accordingly. In order to dissipate this heat and ensure the normal operation of electronic components, the industry uses fans to cool electronic components. Traditional fans generally include a stator, a rotor, and a fan frame that houses the stator and rotor. The rotor usually includes a hub and several fan blades that are evenly arranged around the hub and radiate outward. In the existing technology, multiple fans are mainly connected by the following methods: screw fixing, traditional snap-fit ​​structure, and magnetic connection. However, using the existing technology to connect multiple cooling fans together has the technical problem of inconvenient assembly and disassembly. Utility Model Content

[0003] The purpose of this invention is to provide a rotatable snap-fit ​​cooling fan, which aims to solve the technical problem of inconvenient assembly and disassembly of existing cooling fans.

[0004] To achieve the above objectives, this utility model provides a rotatable snap-fit ​​assembleable cooling fan, comprising a main body, fan blades, a first rotatable connector, and a combined rotatable connector. The fan blades are mounted on the rotating end of the main body. Each of the four corners of the main body has a quarter-circle fan-shaped notch. The first rotatable connector can be rotatably snapped with the fan-shaped notch to form a smooth rectangular corner. The combined rotatable connector is semi-circular and can be rotatably snapped with two of the fan-shaped notches on different parts of the main body.

[0005] Preferably, the combined rotary connector includes two second rotary connectors, which are respectively rotatably engaged with the two fan-shaped notches.

[0006] Preferably, two shaping ring plates are arranged around the side of the main body, the two shaping ring plates are arranged at intervals, and the two shaping ring plates are respectively arranged near the top and bottom of the main body. Each of the fan-shaped notches is arranged at the corner of the shaping ring plate, and both the first rotating connector and the second rotating connector can be rotatably engaged with the fan-shaped notches.

[0007] Preferably, the surface of the fan-shaped notch is provided with a guide protrusion, a guide groove, and two limiting protrusions. The guide protrusion is provided along the opening edge of the fan-shaped notch, the guide groove is provided adjacent to the guide protrusion, and the two limiting protrusions are spaced apart at the center of the guide protrusion, forming a positioning groove between the two limiting protrusions. Both the first rotary connector and the second rotary connector can be slidably connected to the guide protrusion and the guide groove, and both the first rotary connector and the second rotary connector can be engaged with the positioning groove.

[0008] Preferably, both the first rotary connector and the second rotary connector include a first sector plate, a second sector plate, and a support portion. The first sector plate and the second sector plate are respectively rotatably engaged with the two sector-shaped notches, and the first sector plate and the second sector plate are respectively disposed at both ends of the support portion.

[0009] Preferably, annular protrusions and positioning blocks are provided on the opposing planes of the first sector plate and the second sector plate, respectively. The two annular protrusions are respectively provided along the arc edges of the first sector plate and the second sector plate. An anti-gap hole is provided between the annular protrusion and the support part. The two ends of the positioning block are respectively connected to the annular protrusion and the support part. The annular protrusion is slidably disposed in the guide groove. The guide protrusion is located between the annular protrusion and the support part. The positioning block is engaged in the positioning groove.

[0010] Preferably, both the first sector plate and the second sector plate are covered with a gasket, which covers the clearance hole.

[0011] Preferably, the support portion is provided with a through mounting hole, which connects to the two shaping ring plates.

[0012] Preferably, four supporting partitions are provided between the two shaping ring plates, with the two ends of the supporting partitions connected to the two shaping ring plates respectively, and the sides of the supporting partitions connected to the main body.

[0013] Preferably, at least two of the support partitions on the same side have wiring notches, and the two wiring notches are respectively oriented toward the first rotating connector and the second rotating connector.

[0014] The rotating snap-fit ​​assembleable cooling fan provided in this embodiment of the utility model has at least one of the following technical effects:

[0015] The rotating snap-fit ​​assembleable cooling fan of this utility model is assembled from a main body, fan blades, a first rotating connector, and a combined rotating connector. The rotating connecting surface of the first rotating connector is shaped like a quarter circle, and the rotating connecting surface of the combined rotating connector is shaped like a half circle. During manufacturing, four quarter-circle fan-shaped notches are provided at the four corners of the main body. During assembly, the fan blades are installed on the rotating end of the main body. Multiple cooling fans to be assembled are placed end-to-end, so that the fan-shaped notches on the two adjacent surfaces interlock to form a semicircle. The combined rotating connector is then secured by a rotating snap-fit ​​mechanism. The rotating connector is inserted between two fan-shaped notches in a rotating manner, while the diameter edge of the combined rotating connector is flush with the edges of the two main bodies. This operation is repeated to complete the installation of the combined rotating connector between each spliced ​​fan-shaped notch, resulting in multiple cooling fan assemblies connected end to end. Then, the first rotating connector is assembled into the two fan-shaped notches at the ends of the two main bodies by rotating and snapping it in, filling the fan-shaped notches to obtain a rectangular surface with rounded corners. Through the above structural design, the cooling fan in this application can achieve the assembly and separation of multiple cooling fans through a simple rotation action, which is more convenient. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a rendering of the rotating snap-fit ​​assembly of the cooling fan provided in an embodiment of the present invention.

[0018] Figure 2 This is a rendering of the main body of the rotatable snap-fit ​​assembly cooling fan provided in an embodiment of the present invention.

[0019] Figure 3 for Figure 2 A magnified view of part A in the image.

[0020] Figure 4 This is a rendering of the first rotating connector for assembling a cooling fan, provided in an embodiment of the present invention.

[0021] Figure 5 This is a rendering of a rotating connector for assembling a cooling fan, provided in an embodiment of the present invention.

[0022] Figure 6A cross-sectional view of the corner position of the rotatable snap-fit ​​cooling fan provided in an embodiment of this utility model.

[0023] The following are the labeling elements in the figure:

[0024] 10—Main body; 11—Shaping ring plate; 12—Supporting partition plate

[0025] 20—Fan blade; 30—First rotating connector; 31—First sector plate

[0026] 32—Second sector plate; 33—Support part; 40—Combined rotating connector

[0027] 41—Second rotary connector; 111—Guide protrusion; 112—Guide groove

[0028] 113—Limiting protrusion; 121—Waist notch; 311—Annular protrusion

[0029] 312—Positioning block; 313—Vacuum hole; 314—Gasket

[0030] 331—Mounting hole. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below, with examples of the embodiments shown in the appendix. Figures 1-6 As shown, the same or similar reference numerals throughout denote the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.

[0032] In the description of the embodiments of this utility model, 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 drawings. They are only for the convenience of describing the embodiments of 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.

[0033] 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 indicated technical features. 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 this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "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 this embodiment of the invention according to the specific circumstances.

[0035] In one embodiment of this utility model, such as Figures 1-6 As shown, a rotatable snap-fit ​​cooling fan is provided, including a main body 10, fan blades 20, a first rotatable connector 30, and a combined rotatable connector 40. The fan blades 20 are mounted on the rotating end of the main body 10 to drive the rotation of the fan blades 20. Each of the four corners of the main body 10 is provided with a quarter-circle fan-shaped notch to ensure that the included angle between the sides of the main body 10 is a 90° right angle. The first rotatable connector 30 can be rotatably snapped with the fan-shaped notch to form a smooth rectangular corner, reducing the sharpness of the corner of the main body 10 and improving the safety of the entire cooling fan. The combined rotatable connector 40 is semi-circular to ensure that the sides of the two combined main bodies 10 are on the same plane, and the combined rotatable connector 40 can be rotatably snapped with two fan-shaped notches on different main bodies 10 to fill and connect the two fan-shaped notches on the two combined main bodies 10.

[0036] The rotatable snap-fit ​​cooling fan of this utility model is assembled from a main body 10, fan blades 20, a first rotary connector 30, and a combined rotary connector 40. The first rotary connector 30 has a quarter-circle fan-shaped rotating connection surface, while the combined rotary connector 40 has a half-circle semi-circle rotating connection surface. During manufacturing, four quarter-circle fan-shaped notches are provided at the four corners of the main body 10. During assembly, the fan blades 20 are installed on the rotating end of the main body 10. Multiple cooling fans to be assembled are placed end-to-end, so that the fan-shaped notches on the two adjacent surfaces interlock to form a semi-circle. Then, the combined rotary connector 40 is... The rotating connector 40 is inserted between two fan-shaped notches by a rotating snap-fit ​​mechanism. At the same time, the diameter edge of the combined rotating connector 40 is flush with the edges of the two main bodies 10. This operation is repeated to complete the installation of the combined rotating connector 40 between each spliced ​​fan-shaped notch, resulting in multiple cooling fan assemblies connected end to end. Then, the first rotating connector 30 is assembled into the two fan-shaped notches at the ends of the two main bodies 10 by a rotating snap-fit ​​mechanism, filling the fan-shaped notches to obtain a rectangular surface with rounded corners. Through the above structural design, the cooling fan in this application can achieve the assembly and separation of multiple cooling fans through a simple rotation action, which is more convenient.

[0037] In another embodiment of this utility model, such as Figure 1 and Figure 5 As shown, the combined rotary connector 40 includes two second rotary connectors 41. The two fan-shaped right-angled sides of the two second rotary connectors 41 are spliced ​​together to form a semi-circle. The other right-angled side of the two second rotary connectors 41 has a recess formed by the two curved surfaces. The position of each cooling fan can be distinguished by the recesses on the side. The two second rotary connectors 41 are respectively rotated and engaged with the two fan-shaped notches to realize the connection of the two second rotary connectors 41, thereby indirectly realizing the assembly of the two cooling fans.

[0038] In another embodiment of this utility model, such as Figures 1-2 As shown, two shaping ring plates 11 are arranged around the side of the main body 10. The two shaping ring plates 11 are arranged vertically and vertically, and the included angle between the adjacent sides of the shaping ring plates 11 is a 90° right angle. Reinforcing ribs are provided on the surface of the shaping ring plates 11. The reinforcing ribs are arranged along the edge of the shaping ring plates 11, and the top of the reinforcing ribs is flush with the top of the main body 10. The two shaping ring plates 11 are respectively located near the top and bottom of the main body 10 to support the top and bottom of the main body 10. Each fan-shaped notch is arranged at the corner of the shaping ring plate 11. On the one hand, it is convenient for the two main bodies 10 to be combined and connected. On the other hand, after the first rotating connector 30 is assembled, an independent cooling fan body 10 with a smooth corner is formed. The first rotating connector 30 and the second rotating connector 41 can be rotatably engaged with the fan-shaped notches. The fan-shaped notches can be filled by the first rotating connector 30, and the two fan-shaped notches on different main bodies 10 can be combined and connected by the second rotating connector 41.

[0039] In another embodiment of this utility model, such as Figures 2-3As shown, the surface of the fan-shaped notch is provided with a guide protrusion 111, a guide groove 112, and two limiting protrusions 113. The guide protrusion 111 and the guide groove 112 are used to guide the rotation path of the first rotary connector 30 and the second rotary connector 41. The limiting protrusions 113 are used to position the first rotary connector 30 and the second rotary connector 41 at a preset rotational engagement position, and at the same time prevent the first rotary connector 30 and the second rotary connector 41 from rotating and shifting after assembly, which would cause them to fall off and affect the connection stability. The guide protrusion 111 is provided along the opening edge of the fan-shaped notch, and the guide groove 112 is provided adjacent to the guide protrusion 111 to position the connection edge. The two limiting protrusions 113 are spaced apart. The guide protrusion 111 is positioned at the center so that the same angle is rotated regardless of the direction of rotation during assembly, balancing the rotational stroke in different directions. A positioning groove is formed between the two limiting protrusions 113. The positioning groove is used to accommodate the positioning points of the first rotary connector 30 and the second rotary connector 41. Both the first rotary connector 30 and the second rotary connector 41 can be slidably connected to the guide protrusion 111 and the guide groove 112 to position the rotation path of the first rotary connector 30 and the second rotary connector 41. Both the first rotary connector 30 and the second rotary connector 41 can be engaged with the positioning groove, and the engagement positioning points of the first rotary connector 30 and the second rotary connector 41 are set.

[0040] In another embodiment of this utility model, such as Figures 4-6 As shown, both the first rotary connector 30 and the second rotary connector 41 include a first sector plate 31, a second sector plate 32, and a support portion 33. Unnecessary parts on the first rotary connector 30 and the second rotary connector 41 are cut off, retaining the main parts, effectively reducing material costs. The straight edges of the first sector plate 31 and the second sector plate 32 are smoothly rounded. The first sector plate 31 and the second sector plate 32 are respectively rotatably engaged with two sector-shaped notches. The first sector plate 31 and the second sector plate 32 are respectively located at both ends of the support portion 33. The support portion 33 connects the first sector plate 31 and the second sector plate 32 to ensure the spacing between them, thus ensuring the firmness of the engagement of the first sector plate 31 and the second sector plate 32.

[0041] In another embodiment of this utility model, such as Figures 4-6As shown, annular protrusions 311 and positioning blocks 312 are provided on the opposing planes of the first sector plate 31 and the second sector plate 32. The annular protrusions 311 position and limit the connection position and rotation path of the first sector plate 31 and the second sector plate 32 with the two shaping ring plates 11, while preventing misalignment and separation. The two annular protrusions 311 are respectively set along the arc-shaped edges of the first sector plate 31 and the second sector plate 32, positioning the snap-fit ​​position of the first sector plate 31 and the second sector plate 32, and preventing misalignment and sliding separation of the connecting plane after the first sector plate 31 and the second sector plate 32 are assembled. A clearance hole 313 is provided between the annular protrusion 311 and the support part 33. The clearance hole 313 is set along the arc-shaped edges of the first sector plate 31 and the second sector plate 32, and the curvature of the clearance hole 313 is the same, adapting to the first sector plate 31. The rotational locking path of the first sector plate 31 and the second sector plate 32 is such that the two ends of the positioning block 312 are connected to the annular protrusion 311 and the support part 33 respectively, and the connection position of the positioning block 312 and the annular protrusion 311 is located at the center of the annular protrusion 311. The annular protrusion 311 is slidably disposed in the guide groove 112 and rotates under the guidance of the guide groove 112. The guide protrusion 111 is located between the annular protrusion 311 and the support part 33. The guide protrusion 111 and the annular protrusion 311 are synchronously limited to ensure the stability of the first sector plate 31 and the second sector plate 32. The positioning block 312 is locked in the positioning groove. The bottom of the positioning block 312 is flush with the surface of the first sector plate 31 or the second sector plate 32, which can ensure that the first sector plate 31 and the second sector plate 32 will not be affected by the locking during rotation.

[0042] In another embodiment of this utility model, such as Figure 1 and Figures 4-6 As shown, a gasket 314 is provided on both the first sector plate 31 and the second sector plate 32. The gasket 314 covers the clearance hole 313. The gasket 314 serves as an assembly foot pad and, by blocking the clearance hole 313, prevents foreign objects from entering the clearance hole 313 and affecting the smoothness of the rotation assembly of the first sector plate 31 and the second sector plate 32.

[0043] In another embodiment of this utility model, such as Figure 1 and Figures 4-6 As shown, a mounting hole 331 is provided through the support part 33. The mounting hole 331 is connected to the two shaping ring plates 11. The locking screws are used to fix the cooling fan in the corresponding position through the mounting hole 331.

[0044] In another embodiment of this utility model, such as Figure 2As shown, four support partitions 12 are provided between the two shaping ring plates 11 to improve the strength of the shaping ring plates 11 and prevent them from bending easily when subjected to external forces. The two ends of the support partitions 12 are connected to the two shaping ring plates 11 respectively, and the sides of the support partitions 12 are connected to the main body 10. The connection between the sides of the support partitions 12 and the main body 10 strengthens the support strength of the upper and lower ends of the support partitions 12 under stress, so that they will not easily deform.

[0045] In another embodiment of this utility model, such as Figures 2-3 As shown, at least two support partitions 12 on the same side have wiring notches 121. The wiring notches 121 are located at the center of the side of the support partition 12, and the two wiring notches 121 are respectively set towards the first rotating connector 30 and the second rotating connector 41. The wiring is hidden between the two shaping ring plates 11. The wiring notches 121 pass through the beginning and end and extend to the two ends of the main body 10 to abut against the side, so as to realize the wiring connection between multiple main bodies 10.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotatable snap-fit ​​cooling fan, characterized in that: The utility model provides a rotating connection piece for the rotating connection of the fan blade and the body, and the rotating connection piece comprises a body, a fan blade, a first rotating connection piece and a combined rotating connection piece.

2. The pivotally assembled heat dissipation fan according to claim 1, wherein: The combined rotating connection piece comprises two second rotating connection pieces, and the two second rotating connection pieces are respectively connected with two fan-shaped notches.

3. The pivotally clamped assemblable heat-dissipating fan according to claim 2, wherein: The body is provided with two shaped ring plates on the side surface, and the two shaped ring plates are arranged in an upper and lower spaced manner.

4. The pivotally clamped assemblable heat-dissipating fan according to claim 3, wherein: The fan-shaped notch is provided with a guide protrusion, a guide groove and two limiting protrusions.

5. The pivotally clamped assemblable heat-dissipating fan according to claim 4, wherein: The first rotating connection piece and the second rotating connection piece are respectively connected with the two fan-shaped notches.

6. The pivotally clamped assemblable heat-dissipating fan according to claim 5, wherein: The first rotating connection piece and the second rotating connection piece each comprise a first fan-shaped plate, a second fan-shaped plate and a support part.

7. The pivotally clamped assemblable heat-dissipating fan according to claim 6, wherein: The first fan-shaped plate and the second fan-shaped plate are respectively arranged at two ends of the support part.

8. The pivotally clamped assemblable heat-dissipating fan according to claim 7, wherein: The first fan-shaped plate and the second fan-shaped plate are respectively provided with an annular protrusion and a positioning block on the opposite plane.

9. The pivotally clamped assemblable heat-dissipating fan according to claim 3, wherein: The first fan-shaped plate and the second fan-shaped plate are respectively provided with a gasket.

10. The pivotally clamped assemblable heat-dissipating fan according to claim 9, wherein: The support part is provided with a mounting hole. The two shaped ring plates are provided with four support partitions. The support partitions are respectively connected with the two shaped ring plates at two ends. The support partitions are connected with the body at the side edges. At least two support partitions on the same side edge are provided with wire arranging notches, and the two wire arranging notches are respectively arranged towards the first rotating connection piece and the second rotating connection piece.

Images