Cooling blade structure and cooling fan

Abstract

The utility model belongs to the technical field of heat dissipation, and particularly relates to a heat dissipation blade structure and a heat dissipation fan. The heat dissipation blade structure comprises a supporting body, at least one fin body and at least one connecting body. A mounting cavity is formed in the supporting body; one side end of the connecting body is connected to the outer side surface of the supporting body; the other side end of the connecting body is connected to one side end of the fin body; the other side end of the fin body extends away from the connecting body; and a supporting curved surface is arranged on the surface of at least one side of the connecting body. According to the utility model, the assembly strength of the fin body can be improved, and the use safety and stability are ensured.

Description

Technical Field

[0001] This utility model belongs to the field of heat dissipation technology, and in particular relates to a heat dissipation blade structure and a heat dissipation fan. Background Technology

[0002] Fans are used in many ways depending on specific cooling needs. Taking the computer industry as an example, a desktop computer has case fans that provide fresh air to the chassis, radiator fans that provide heat exchange for the CPU and GPU coolers, internal fans that provide air cooling for the power supply, and auxiliary motherboard fans that cool the motherboard's MOS power supply units. Different applications place different demands on fan performance. Airflow, air pressure, and the combined airflow-air pressure (PQ curve) are among the core indicators for evaluating cooling fan performance. At the same time, fans that achieve low-noise operation through low-speed operation or excellent aerodynamic design are another important parameter for evaluating fan performance.

[0003] However, the blades of most existing cooling fans have low assembly strength and are prone to breakage, which affects the stability of the overall structure and the safety of use. Utility Model Content

[0004] The purpose of this utility model is to provide a heat dissipation blade structure that addresses the shortcomings of existing technologies and solves the technical problem of low assembly strength of existing blades.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A heat dissipation blade structure includes a support body, at least one fin body, and at least one connector body; the support body has an installation cavity; one end of the connector body is connected to the outer surface of the support body; the other end of the connector body is connected to one end of the fin body; the other end of the fin body extends away from the connector body; and at least one surface of the connector body has a support curved surface.

[0007] Preferably, the supporting curved surface includes a first convex arc surface, a second convex arc surface, and a third convex arc surface connected in sequence; the two ends of the first convex arc surface are respectively connected to the support body and the fin body; the two ends of the second convex arc surface are respectively connected to the support body and the fin body; and the two ends of the third convex arc surface are respectively connected to the support body and the fin body.

[0008] Preferably, the relationship between the arcuate cross-sectional radius d1 of the first convex surface, the arcuate cross-sectional radius d2 of the second convex surface, and the arcuate cross-sectional radius d3 of the third convex surface satisfies: d2>d3≥d1.

[0009] Preferably, the radius d3 of the arc-shaped cross-section of the third convex surface satisfies: 0.8cm ≥ d3 ≥ 0.3cm;

[0010] And / or, the radius d1 of the arcuate section of the first convex surface satisfies: 0.3cm ≥ d1 ≥ 0.2cm;

[0011] And / or, the radius d2 of the arc section of the second convex surface satisfies: 1.2cm ≥ d3 ≥ 0.9cm.

[0012] Preferably, one side surface of the fin body is provided with a recess;

[0013] And / or, the other side surface of the fin body is provided with a protrusion.

[0014] Preferably, the support body includes a horizontal support block and a support side ring block; the horizontal support block is connected to the support side ring block; and the mounting cavity is formed between the horizontal support block and the support side ring block; the connector is connected to the outer surface of the support side ring block.

[0015] Preferably, the supporting ring block includes an outer supporting layer, an inner supporting layer, and a supporting interlayer; the inner supporting layer is stacked inside the outer supporting layer; and a first assembly gap is provided between the inner supporting layer and the outer supporting layer; the mounting cavity is formed between the inner supporting layer and the horizontal supporting block; the supporting interlayer is disposed inside the first assembly gap, and both ends of the supporting interlayer are respectively connected to the inner supporting layer and the outer supporting layer.

[0016] Preferably, the support body has a positioning component inside; the positioning component has a positioning hole inside; the positioning hole is connected to the mounting cavity.

[0017] Preferably, the positioning component includes a limiting ring block, a positioning post, and a connecting block; the positioning post is stacked inside the limiting ring block, and a second assembly gap is provided between the positioning post and the limiting ring block; the positioning hole is provided through one end of the positioning post; the connecting block is disposed inside the second assembly gap; and the connecting block is connected to the limiting ring block and the positioning post respectively.

[0018] This utility model also discloses a cooling fan, including the aforementioned cooling blade structure.

[0019] The beneficial effects of this utility model are that, by using a connector to assemble with the support body and the fin body respectively, the assembly position can be transferred, thereby improving the assembly convenience of the fin body and ensuring the assembly stability of the fin body; and by using the support curved surface on the connector to decompose the external stress received from different angles and directions, the assembly strength of the fin body can be improved; thus improving the stability of the structure and ensuring the safety and stability of use. Attached Figure Description

[0020] The following will refer to the appendix. Figures 1-4 This section describes the features, advantages, and technical effects of exemplary embodiments of the present invention.

[0021] Figure 1 This is a schematic diagram of the heat dissipation blade structure according to an embodiment of the present invention;

[0022] Figure 2 This is a partially enlarged view of the heat dissipation blade structure according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the heat dissipation blade structure according to an embodiment of the present invention;

[0024] Figure 4 This is a partial structural diagram of a heat dissipation blade structure according to an embodiment of the present invention.

[0025] In the figure: 1-Support body; 11-Mounting cavity; 101-Horizontal support block; 102-Support side ring block; 1021-Outer support layer; 1022-Inner support layer; 1023-Support interlayer; 1024-Abutting horizontal surface; 1025-Connecting inclined surface; 1026-First assembly gap; 12-Positioning component; 121-Limiting ring block; 122-Positioning post; 123-Connecting block; 124-Second assembly gap; 13-Reinforcing protrusion; 14-Positioning hole; 15-Reinforcing convex plate; 2-Fin body; 21-Recessed part; 22-Protruding part; 3-Connecting body; 31-Supporting curved surface; 311-First convex arc surface; 312-Second convex arc surface; 313-Third convex arc surface. Detailed Implementation

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0027] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0028] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or multiple situations existing alone. In addition, the character " / " in this document generally indicates that the related objects before and after are in an "or" relationship.

[0030] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" 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. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0031] The following is in conjunction with the appendix Figures 1-4 The present invention will be described in further detail, but this is not intended to limit the scope of the present invention.

[0032] like Figure 1 As shown, in one embodiment of this utility model, the heat dissipation blade structure includes a support body 1, at least one fin body 2, and at least one connector 3. The support body 1 has a mounting cavity 11. One end of the connector 3 is connected to the outer surface of the support body 1; the other end of the connector 3 is connected to one end of the fin body 2; the other end of the fin body 2 extends away from the connector 3; and at least one surface of the connector 3 has a supporting curved surface 3. That is, the supporting curved surface 3 is located in the non-assembly area between the connector 3 and the fin body 2; and the supporting curved surface 3 is located in the non-assembly area between the connector 3 and the support body 1.

[0033] The technical solution of this utility model adopts a connector to be assembled with the support body and the fin body respectively, so as to realize the transfer of assembly position, thereby improving the assembly convenience of the fin body and ensuring the assembly stability of the fin body; and also uses the support curved surface on the connector body to decompose the external stress received from different angles and directions, thereby improving the assembly strength of the fin body; thus improving the stability of the structure and ensuring the safety and stability of use.

[0034] In some implementation methods, such as Figure 1 and 3 As shown, the number of connecting bodies 3 is consistent with the number of fin bodies 2; that is, there are 9 connecting bodies 3 and 9 fin bodies 2; thereby improving the space utilization of the outer surface of the support body 1, ensuring the balance of rotation, and thus improving the stability of use.

[0035] Specifically, in some embodiments, the number of supporting curved surfaces 3 is two, and they are symmetrically arranged on both sides of the connecting body 3. In some embodiments, such as... Figure 1 and 2 As shown, the supporting curved surface 3 includes a first convex arc surface 311, a second convex arc surface 312, and a third convex arc surface 313 connected in sequence. The two ends of the first convex arc surface 311 are respectively connected to the support body 1 and the fin body 2; the two ends of the second convex arc surface 312 are respectively connected to the support body 1 and the fin body 2; and the two ends of the third convex arc surface 313 are respectively connected to the support body 1 and the fin body 2. This structure, through different first convex arc surfaces 311, second convex arc surfaces 312, and third convex arc surfaces 313, achieves different degrees of decomposition of external stresses received at different locations; thereby improving the stability of the structure and ensuring safety and stability during use.

[0036] Specifically, in some embodiments, the relationship between the arcuate cross-sectional radius d1 of the first convex arc surface 311, the arcuate cross-sectional radius d2 of the second convex arc surface 312, and the arcuate cross-sectional radius d3 of the third convex arc surface 313 satisfies: d2 > d3 ≥ d1. In some embodiments, the arcuate cross-sectional radius d3 of the third convex arc surface 313 satisfies: 0.8cm ≥ d3 ≥ 0.3cm; it can be 0.3cm, 0.4cm, 0.5cm, 0.6cm, 0.7cm, 0.75cm, 0.8cm, etc.; preferably 0.8cm. The arcuate cross-sectional radius d1 of the first convex arc surface 311 satisfies: 0.3cm ≥ d1 ≥ 0.2cm; it can be 0.2cm, 0.23cm, 0.25cm, 0.26cm, 0.3cm, etc.; preferably 0.3cm. The radius d2 of the arc section of the second convex surface 312 satisfies: 1.2cm ≥ d3 ≥ 0.9cm; it can be 0.9cm, 1.1cm, 1.2cm, and 1cm, etc.; preferably 1cm. Since the stress in the middle part will be greater, a larger convex curvature is required to increase its strength; thus, it is beneficial to improve the stability of the structure and ensure the safety and stability of use.

[0037] Specifically, in some implementations, such as Figure 1 and 3 As shown, one side surface of the fin body 2 is provided with a recessed portion 21; the other side surface of the fin body 2 is provided with a protruding portion 22. That is, the recessed surface 21 and the protruding surface 22 are arranged opposite to each other on the two sides of the fin body 2 to form a sickle-shaped fin body 2; thereby ensuring the amount and speed of the airflow generated by its rotation.

[0038] Specifically, in some implementations, such as Figure 1 and 3 As shown, the support body 1 includes a horizontal support block 101 and a support-side ring block 102; the horizontal support block 101 is connected to the support-side ring block 102; and the mounting cavity 11 is formed between the horizontal support block 101 and the support-side ring block 102; the connecting body 3 is connected to the outer surface of the support-side ring block 102. An H-shaped or U-shaped structure is formed between the horizontal support block 101 and the support-side ring block 102. This structure, through the synergistic effect of the horizontal support block 101 and the support-side ring block 102, ensures the assembly stability of the fin body 2 and the connecting body 3, thereby improving the stability of the structure and ensuring the stability of the assembly; thus improving the efficiency of use.

[0039] Specifically, in some implementations, such as Figure 3 and 4As shown, the support ring block 102 includes an outer support layer 1021, an inner support layer 1022, and a support interlayer 1023; (one end of the inner support layer 1022 and one end of the horizontal support block 101 are both connected to the horizontal support block 101;) the inner support layer 1022 is stacked inside the outer support layer 1021; and a first assembly gap 1026 is provided between the inner support layer 1022 and the outer support layer 1021; the mounting cavity 11 is formed between the inner support layer 1022 and the horizontal support block 101; the support interlayer 1023 is disposed inside the first assembly gap 1026, and both ends of the support interlayer 1023 are respectively connected to the inner support layer 1022 and the outer support layer 1021; the connector 3 is connected to the outer surface of the outer support layer 1021 away from the support interlayer 1023. In some embodiments, such as... Figure 4 As shown, there are at least three supporting interlayers 1023, all of which are disposed in the first assembly gap 1026; and the outer supporting layer 1021, the inner supporting layer 1022, and the supporting interlayers 1023 are integrally formed. This structure, through the double-layered interlayer configuration, further enhances the structural robustness, thereby ensuring assembly stability and improving efficiency. Furthermore, in some embodiments, such as... Figure 4 As shown, the outer support layer 1021 has an abutting horizontal surface 1024 and a connecting slope 1025 on the side away from the horizontal support block 101; the abutting horizontal surface 1024 and the connecting slope 1025 are inclined to each other; and the side of the connecting slope 1025 away from the abutting horizontal surface 1024 is connected to the support interlayer 1023 to form a protective interface with low inner terrain or a guiding slope with high outer terrain.

[0040] Specifically, in some implementations, such as Figure 1 As shown, the support body 1 (middle horizontal support block 101) has a positioning component 12 inside; the positioning component 12 has a positioning hole 14; the positioning hole 14 is connected to the mounting cavity 11. This structure, through the positioning component 12 and its positioning hole 14, improves the snap-fit ​​assembly between itself and other components, thereby improving the stability of the assembly and ensuring the convenience of assembly and disassembly. In some embodiments, such as... Figure 1 and 4 As shown, the positioning component 12 includes a limiting ring block 121, a positioning post 122, and a connecting block 123; (one end of the limiting ring block 121 and one end of the positioning post 122 are both connected to the horizontal support block 101 in the support body 1) inside;) the positioning post 122 is stacked inside the limiting ring block 121, and a second assembly gap 124 is provided between the positioning post 122 and the limiting ring block 121; the positioning hole 14 is provided through one end of the positioning post 122; the connecting block 123 is disposed inside the second assembly gap 124; and the connecting block 123 is connected to the limiting ring block 121 and the positioning post 122 respectively. In some embodiments, such as Figure 4 As shown, there are at least three connecting blocks 123, all of which are located in the second assembly gap 124; and the limiting ring block 121, the positioning post 122, and the connecting blocks 123 are integrally formed. This structure, through the double-layer sandwich arrangement, further improves the robustness of the positioning assembly structure, thereby ensuring the stability of the assembly and improving the efficiency of use.

[0041] Specifically, in some implementations, such as Figure 1 and 4 As shown, the horizontal support block 101 has a reinforcing protrusion 15 inside; the reinforcing protrusion 15 is disposed between the positioning component 12 and the support side ring block 102. This structure improves the support strength of the horizontal support block 101 by thickening the horizontal support block 101 and limiting the positioning component 12, thereby ensuring the stability of the assembly and improving the efficiency of use.

[0042] Specifically, in some implementations, such as Figure 1 and 4 As shown, the horizontal support block 101 also has at least one reinforcing protrusion 13 inside; the reinforcing protrusion 13 is disposed between the reinforcing protrusion 15 and the support side ring block 102. There are at least two reinforcing protrusions 13, which are arranged equidistantly in a ring. This structure can effectively reduce the weight of the structure and also improve the support strength of the horizontal support block 101, thereby ensuring the stability of the assembly and improving the efficiency of use.

[0043] This utility model also proposes a cooling fan, which includes a cooling blade structure. The specific structure of the cooling blade structure is as described in the above embodiments. Since this cooling fan adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0044] A cooling fan typically consists of several parts, including fan blades, a fan frame, and a drive motor. The rotation of the fan blades creates airflow with specific characteristics to achieve forced convection heat transfer. The fan blades are usually composed of multiple independent blades connected together by the motor housing. A single blade is typically designed with a specific combination of length, arc, angle, and curvature, forming a solid entity with different curved surfaces in three-dimensional space. The core of the cooling fan's aerodynamic structure is composed of multiple blades.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0046] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above, and any obvious improvements, substitutions, or modifications made by those skilled in the art based on this utility model are within the protection scope of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A heat dissipation blade structure, characterized in that: It includes a support body, at least one fin body, and at least one connector body; the support body has an installation cavity; one end of the connector body is connected to the outer surface of the support body; the other end of the connector body is connected to one end of the fin body; the other end of the fin body extends away from the connector body; and at least one surface of the connector body has a support curved surface.

2. The heat dissipation blade structure according to claim 1, characterized in that: The supporting curved surface includes a first convex arc surface, a second convex arc surface, and a third convex arc surface connected in sequence; the two ends of the first convex arc surface are respectively connected to the support body and the fin body; the two ends of the second convex arc surface are respectively connected to the support body and the fin body; the two ends of the third convex arc surface are respectively connected to the support body and the fin body.

3. The heat dissipation blade structure according to claim 2, characterized in that: The relationship between the arc cross-sectional radius d1 of the first convex arc surface, the arc cross-sectional radius d2 of the second convex arc surface, and the arc cross-sectional radius d3 of the third convex arc surface satisfies: d2>d3≥d1.

4. The heat dissipation blade structure according to claim 3, characterized in that: The radius d3 of the arc-shaped cross-section of the third convex surface satisfies: 0.8cm ≥ d3 ≥ 0.3cm; And / or, the radius d1 of the arcuate section of the first convex surface satisfies: 0.3cm ≥ d1 ≥ 0.2cm; And / or, the radius d2 of the arc section of the second convex surface satisfies: 1.2cm ≥ d3 ≥ 0.9cm.

5. The heat dissipation blade structure according to claim 1, characterized in that: One side surface of the fin body is provided with a recess; And / or, the other side surface of the fin body is provided with a protrusion.

6. The heat dissipation blade structure according to claim 1, characterized in that: The support body includes a horizontal support block and a support side ring block; the horizontal support block is connected to the support side ring block; and the mounting cavity is formed between the horizontal support block and the support side ring block; the connector is connected to the outer surface of the support side ring block.

7. The heat dissipation blade structure according to claim 6, characterized in that: The supporting ring block includes an outer supporting layer, an inner supporting layer, and a supporting interlayer; the inner supporting layer is stacked inside the outer supporting layer; and a first assembly gap is provided between the inner supporting layer and the outer supporting layer; the mounting cavity is formed between the inner supporting layer and the horizontal supporting block; the supporting interlayer is disposed inside the first assembly gap, and the two ends of the supporting interlayer are respectively connected to the inner supporting layer and the outer supporting layer.

8. The heat dissipation blade structure according to claim 1, 6, or 7, characterized in that: The support body has a positioning component inside; the positioning component has a positioning hole inside; the positioning hole is connected to the mounting cavity.

9. The heat dissipation blade structure according to claim 8, characterized in that: The positioning component includes a limiting ring block, a positioning post, and a connecting block; the positioning post is stacked inside the limiting ring block, and a second assembly gap is provided between the positioning post and the limiting ring block; the positioning hole is provided through one end of the positioning post; the connecting block is disposed inside the second assembly gap; and the connecting block is connected to the limiting ring block and the positioning post respectively.

10. A cooling fan, characterized in that: Includes the heat dissipation blade structure as described in any one of claims 1 to 9.

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