Dovetail wave cooling fins

Abstract

The utility model is applicable to the field of radiator parts, and provides a dovetail wave-type heat dissipation fin, comprising at least two fins arranged along a first direction, with two adjacent fins connected at an angle; each fin extends along a second direction; a dividing line is planned to be extended along the second direction at a predetermined position on the fin, and guide structures extending along the predetermined extension direction are arranged on both sides of the dividing line; an angle s is formed between the predetermined extension direction extending from close to the dividing line to away from the dividing line and the dividing line, thereby, the utility model can focus on diverting the airflow in the middle position of the fin during the process of changing the flow direction of the fluid through the guide structure of the dovetail structure, thereby achieving airflow dispersion and optimizing the heat dissipation effect.

Description

Technical Field

[0001] The utility model relates to the field of radiator parts, in particular to a dovetail wave type radiating fin. Background Art

[0002] The cooling fins of the radiator used for cooling off-road machinery are usually corrugated fins. However, with the increasing emission requirements and cost control requirements, traditional corrugated fins can no longer meet customers' needs for fin radiators. Window fins can improve heat dissipation performance to a certain extent, but due to the poor working environment of off-road equipment, they are prone to blockage, which is a difficult problem encountered by the industry. In order to solve this problem, oblique wave fins with better air turbulence effect came into being.

[0003] The Chinese patent document CN211236908U, named Oblique Wave Fin and Heat Exchanger, discloses an oblique wave heat sink fin, which mainly develops part of the airflow in the oblique wave direction to form a vortex; this multi-directional flow state will increase the heat exchange intensity on the fin surface. However, the heat sink adopts this unidirectional oblique wave flow guide structure, and the flow guide effect is limited. At the same time, during the wind tunnel test of the fin with this structure, the air volume and flow rate in the middle of the fin (around point A) are large, and the unidirectional oblique wave fin structure cannot match this characteristic and process the airflow in the middle.

[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] In view of the above-mentioned defects, the purpose of the utility model is to provide a dovetail wave heat dissipation fin, which can focus on diverting the airflow in the middle part of the fin during the process of changing the flow direction of the fluid through the guide structure of the dovetail structure, thereby achieving airflow dispersion and optimizing the heat dissipation effect.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a dovetail wave type heat dissipation fin, comprising at least two fins arranged along a first direction, and two adjacent fins are connected at an angle; each fin extends along a second direction; a dividing line is planned to be extended along the second direction at a predetermined position on the fin, and guide structures extending along the predetermined extension direction are arranged on both sides of the dividing line; there is an angle s between the predetermined extension direction extending from close to the dividing line to away from the dividing line and the dividing line.

[0007] According to the dovetail wave heat dissipation fins of the utility model, the guide structures are arranged in multiple groups along the second direction.

[0008] According to the dovetail wave type heat dissipation fin of the utility model, the separation line is a center line located in the middle of the fin.

[0009] According to the dovetail wave type heat dissipation fins of the utility model, the flow guide structures located on both sides of the dividing line are asymmetric structures.

[0010] According to the dovetail wave type heat dissipation fin of the utility model, the angle s is an acute angle.

[0011] According to the dovetail wave heat dissipation fin of the utility model, the angle s has an angle range of 37°≤s≤45°.

[0012] According to the dovetail wave heat dissipation fin of the utility model, the guide structure is a strip-shaped protrusion or a strip-shaped groove extending in the predetermined extension direction.

[0013] According to the dovetail wave type heat dissipation fin of the utility model, the guide structure is rolled by a roller press.

[0014] According to the dovetail wave type heat dissipation fins of the utility model, the flow guide structures located on both sides of the dividing line are symmetrical structures.

[0015] The utility model provides a dovetail wave heat dissipation fin, comprising at least two fins arranged along a first direction, two adjacent fins connected at an angle, and the two adjacent fins are an integrally formed structure; each fin extends along a second direction; the first direction is defined as perpendicular to the second direction (of course, it can also be set at other angles), and a plurality of fins form a wavy plate-like structure. During the use of the device, the airflow blows toward the device from the second direction. A predetermined position on the fin is provided with a dividing line extending along the second direction, and the position of the dividing line can be set as required. It is suitable that the dividing line is the center line located in the middle of the fin to ensure the aesthetics of the fin shape. A guide structure extending along a predetermined extension direction is provided on both sides of the dividing line; an angle s is formed between the predetermined extension direction extending from close to the dividing line to away from the dividing line and the dividing line, and the angle range of the angle s is 37°≤s≤45° (the two guide structures corresponding to the two sides of the dividing line constitute a dovetail structure), and the angle is not easy to be too large or too small. The guide structure may be a strip-shaped protrusion or a strip-shaped groove extending in the predetermined extension direction. During the processing of the guide structure, it can be rolled by a roller of a roller press with a specific pattern. The utility model can focus on diverting the airflow in the middle of the fin during the process of changing the flow direction of the fluid through the guide structure with a dovetail structure, thereby dispersing the airflow and optimizing the heat dissipation effect. The utility model can focus on diverting the airflow in the middle of the fin during the process of changing the flow direction of the fluid through the guide structure with a dovetail structure, thereby dispersing the airflow and optimizing the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a structural schematic diagram of the utility model;

[0017] In the figure, 1- fin, 2- separator line, 3- flow guide structure. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] See also Figure 1 The utility model provides a dovetail wave heat dissipation fin, which includes at least two fins 1 arranged along a first direction, two adjacent fins 1 are connected at an angle, and the two adjacent fins 1 are an integrally formed structure; each fin 1 extends along a second direction; in this embodiment, the first direction is defined as being perpendicular to the second direction (of course, it can also be set at other angles), so that as shown in the figure, multiple fins 1 form a wavy plate structure. During the use of the device, the airflow blows toward the device from the second direction.

[0020] A separation line 2 is provided at a predetermined position on the fin 1 along the second direction, and the position of the separation line can be set as required. In this embodiment, the separation line is preferably a center line located in the middle of the fin 1 to ensure the aesthetic shape of the fin.

[0021] The two sides of the dividing line are provided with flow-guiding structures 3 extending along the predetermined extension direction; there is an angle s between the dividing line and the predetermined extension direction extending from close to the dividing line to far away from the dividing line, and the angle range of the angle s is 37°≤s≤45° (the two corresponding flow-guiding structures 3 on both sides of the dividing line form a dovetail structure), and the angle is not too large or too small. The flow-guiding structure 3 can be a strip-shaped protrusion or a strip-shaped groove extending in the predetermined extension direction. During the processing of the flow-guiding structure 3, it can be rolled by a roller press with a specific pattern.

[0022] The airflow blowing toward the device from the second direction will be guided by the obliquely arranged guide structure 3 to change the flow direction, and the airflow located in the middle of the fin (around point A) will be diverted (in this embodiment, the dividing line is the center line located in the middle of the fin 1 to adapt to the airflow position in the middle of the fin), part of the airflow flows upward, and part of the airflow moves downward. After diversion, vortices are formed at the guide ends of the guide structure 3. Since the vortices formed by the two guide structures 3 rotate in opposite directions, the two vortices will collide to a certain extent and form turbulence. The above structure increases the diversity of airflow conversion (from direct current, to vortex, and finally to turbulence) on the one hand, and further increases the heat exchange time of the airflow (usually the heat dissipation fins will cooperate with the heat dissipation pipes filled with refrigerant to increase the heat exchange time of the airflow, that is, increase the contact time between the airflow and the refrigerant).

[0023] In order to improve the cooling efficiency of the radiator, the present application arranges the guide structure into multiple groups along the second direction to achieve multiple guide operations on the airflow.

[0024] At the same time, in order to ensure that the eddies formed by the two flow guide structures 3 are similar in size, further ensure that the impact forces of the two flow guide structures 3 are similar in size when they impact each other, and further optimize the turbulence formed, the inclined angles s of the two corresponding flow guide structures 3 located on both sides of the dividing line of the present application are equal.

[0025] The flow-guiding structures 3 located on both sides of the dividing line are symmetrical structures, and the two corresponding flow-guiding structures 3 located on both sides of the dividing line are strip-shaped protrusions or strip-shaped grooves extending in the predetermined extension direction.

[0026] In summary, the utility model provides a dovetail wave heat dissipation fin, comprising at least two fins arranged along a first direction, two adjacent fins connected at an angle, and the two adjacent fins are an integrally formed structure; each fin extends along a second direction; the first direction is defined as perpendicular to the second direction (of course, it can also be set at other angles), and multiple fins form a wavy plate structure. During the use of the device, the airflow blows toward the device from the second direction. A predetermined position on the fin is provided with a dividing line extending along the second direction, and the position of the dividing line can be set as needed. It is suitable that the dividing line is the center line located in the middle of the fin to ensure the aesthetics of the fin shape. A guide structure extending along a predetermined extension direction is provided on both sides of the dividing line; the predetermined extension direction extending from close to the dividing line to away from the dividing line has an angle s with the dividing line, and the angle range of the angle s is 37°≤s≤45° (the two guide structures on both sides of the dividing line and corresponding to the two branches constitute a dovetail structure), and the angle is not easy to be too large or too small. The guide structure may be a strip-shaped protrusion or a strip-shaped groove extending in the predetermined extension direction. During the processing of the guide structure, it can be rolled by a roller of a roller press with a specific pattern. The utility model can focus on diverting the airflow in the middle of the fin during the process of changing the flow direction of the fluid through the guide structure with a dovetail structure, thereby dispersing the airflow and optimizing the heat dissipation effect. The utility model can focus on diverting the airflow in the middle of the fin during the process of changing the flow direction of the fluid through the guide structure with a dovetail structure, thereby dispersing the airflow and optimizing the heat dissipation effect.

[0027] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A dovetail wave heat sink, characterized in that: It comprises at least two fins arranged along a first direction, and two adjacent fins are connected at an angle; each fin extends along a second direction; A separation line is provided at a predetermined position on the fin extending along the second direction, and flow guide structures extending along the predetermined extension direction are provided on both sides of the separation line; An angle s is formed between the predetermined extension direction extending from close to the separation line to far away from the separation line and the separation line.

2. The dovetail wave heat sink according to claim 1, characterized in that: The guide structures are arranged in multiple groups along the second direction.

3. The dovetail wave heat sink according to claim 1, characterized in that: The separation line is a center line located in the middle of the fin.

4. The dovetail wave heat sink according to claim 1 or 2, characterized in that: The flow guide structures on both sides of the dividing line are asymmetric structures.

5. The dovetail wave heat sink according to claim 1, 2 or 3, characterized in that: The flow guide structures on both sides of the dividing line are symmetrical structures.

6. The dovetail wave heat sink according to claim 1, characterized in that: The angle s is an acute angle.

7. The dovetail wave heat sink according to claim 6, characterized in that: The angle s has an angle range of 37°≤s≤45°.

8. The dovetail wave heat sink according to claim 1, characterized in that: The guide structure is a strip-shaped protrusion or a strip-shaped groove extending in the predetermined extension direction.

9. The dovetail wave heat sink according to claim 1 or 8, characterized in that: The flow-guiding structure is formed by rolling with a roller press.

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