Flow guide type dovetail wave type radiating fin

Abstract

The utility model is suitable for the field of radiator parts, and provides a flow guide type dovetail wave type radiating fin which comprises at least two fins arranged in the first direction, and every two adjacent fins are connected in an included angle mode. Each fin extends along a second direction; a certain preset position on the fin extends in the second direction to form a separation line, and flow guide structures extending in the preset extending direction are arranged on the two sides of the separation line; an included angle s is formed between the preset extension direction extending from the position close to the separation line to the position far away from the separation line and the separation line; a flow discharge groove is formed between the flow guide structures on the two sides in the direction of the separation line, and therefore in the process of changing the flow direction of fluid through the flow guide structures of the dovetail type structures, airflow in the middle of the fins can be emphatically divided, airflow dispersion is achieved, the heat dissipation effect is optimized, and meanwhile the heat dissipation effect is improved. In order to prevent the flow choking effect of the flow guide structure from being too large, the flow discharge groove which plays a role in flow discharge is arranged.

Description

Technical Field

[0001] The utility model relates to the field of radiator parts, in particular to a flow-guiding 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, and it is impossible to further increase the retention time of the airflow, thereby failing to further improve the heat exchange intensity.

[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 guide-type dovetail wave heat dissipation fin, which can focus on diverting the airflow in the middle part of the fin when 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. At the same time, in order to avoid excessive flow resistance of the guide structure, a flow discharge groove is provided to discharge the flow.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a guide-type dovetail wave 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; 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; a discharge groove is arranged between the guide structures on both sides along the direction of the dividing line.

[0007] According to the flow-guiding dovetail wave-type heat dissipating fin of the utility model, the flow-guiding structure includes a concave structure and a convex structure extending along a predetermined extension direction.

[0008] According to the flow-guiding dovetail wave-type heat dissipating fin of the utility model, the flow-guiding structure is a strip-shaped protrusion or a strip-shaped groove extending in the predetermined extension direction.

[0009] According to the flow-guiding dovetail wave-type heat dissipating fin of the utility model, the unloading groove is communicated with the flow-guiding structure which is a concave structure.

[0010] According to the flow-guiding dovetail wave-type heat dissipating fin of the utility model, at least one group of the flow discharge grooves is provided in the extension direction thereof.

[0011] The utility model provides a flow-guiding dovetail wave-shaped 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 being perpendicular to the second direction (of course, it can also be set at other angles), and a plurality of fins form a wavy plate-shaped 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. The dividing line is preferably a center line located in the middle of the fin to ensure the aesthetics of the fin shape. A flow-guiding 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 flow-guiding structures corresponding to the two sides of the dividing line form 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

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0014] Figure 3 It is a schematic diagram of the structure of a single fin in the utility model;

[0015] In the figure, 1-fin, 2-dividing line, 3-flow guiding structure, 31-concave structure, 32-convex structure, 4-flow discharge groove. DETAILED DESCRIPTION

[0016] 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.

[0017] See also Figure 1 , Figure 2 and Figure 3 The utility model provides a flow-guiding 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-like structure. During the use of the device, the airflow blows toward the device from the second direction.

[0018] A predetermined position on the fin 1 is extended along the second direction to form a dividing line 2, and the position of the dividing line 2 can be set as needed. In this embodiment, the dividing line 2 is preferably a center line located in the middle of the fin 1 to ensure the aesthetic shape of the fin.

[0019] The two sides of the dividing line 2 are provided with a flow guiding structure 3 extending along a predetermined extension direction; there is an angle s between the dividing line 2 and the predetermined extension direction extending from close to the dividing line 2 to far away from the dividing line 2, and the angle range of the angle s is 37°≤s≤45°, 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 set.

[0020] 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, in order to adapt to the airflow position in the middle of the fin, the dividing line 2 is the center line located in the middle of the fin 1), 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).

[0021] 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.

[0022] 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 2 of the present application are equal.

[0023] The flow-guiding structures 3 located on both sides of the dividing line 2 are symmetrical structures, and the two corresponding flow-guiding structures 3 located on both sides of the dividing line 2 are strip-shaped protrusions or strip-shaped grooves extending in the predetermined extension direction.

[0024] Preferably, the present application has made further optimization based on the above structure, and the flow-guiding structure 3 located on both sides of the dividing line 2 of the present application is a concave structure 31 on one side and a convex structure 32 on the other side; this is because both the concave structure and the convex structure have their own disadvantages, such as the concave structure will not affect the flow of fluid and produce a greater flow resistance effect, but the flow-guiding effect is relatively poor, while the convex structure is the opposite, its flow-guiding effect is better, but the flow resistance to the airflow is greater. The above two can be used together to complement each other.

[0025] For example, in this embodiment, the concave structures and convex structures of the flow-guiding structures arranged along the second direction and located on the same side of the dividing line 2 are staggered. The convex structures can effectively guide the airflow into the adjacent concave structures, and the concave structures are mainly used to contain the airflow. The flow-guiding effect of the airflow can be ensured, while avoiding excessive resistance of the flow-guiding structure 3 to the airflow during the airflow guidance process, thereby affecting the circulation of the airflow in the fins.

[0026] In order to further reduce the obstruction of the flow guiding structure 3 to the airflow, a discharge groove 4 is provided between the flow guiding structures 3 on both sides along the direction of the dividing line 2, and a small part of the airflow will be lost through the discharge groove 4. At the same time, the discharge groove 4 can be connected or not connected with the flow guiding structure 3 of the concave structure.

[0027] Preferably, the discharge groove 4 is communicated with the flow guiding structure 3 which is a concave structure, and the discharged airflow can also flow into the concave structure and be redirected.

[0028] In addition, the unloading groove 4 of the present application is provided with at least one group in its extending direction, that is, the unloading groove 4 can be a through groove extending in the direction of the dividing line 2, or can be composed of a plurality of unloading grooves 4 in the direction of the dividing line 2 (non-connected).

[0029] In summary, the utility model provides a flow-guiding dovetail wave-shaped 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 being perpendicular to the second direction (of course, it can also be set at other angles), and a plurality of fins form a wavy plate-shaped 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 flow-guiding 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 corresponding flow-guiding structures on both sides of the dividing line form 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.

[0030] 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 flow-guiding dovetail wave heat sink fin, 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; 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; A discharge groove is arranged between the flow guide structures on both sides along the direction of the dividing line.

2. The flow-guiding dovetail wave heat sink fin according to claim 1, characterized in that: The flow guiding structure includes a concave structure and a convex structure extending along a predetermined extending direction.

3. The flow-guiding dovetail wave heat sink fin according to claim 2, characterized in that: The guide structure is a strip-shaped protrusion or a strip-shaped groove extending in the predetermined extension direction.

4. The flow-guiding dovetail wave heat sink fin according to any one of claims 1 to 3, characterized in that: The unloading groove is communicated with the flow guiding structure which is a concave structure.

5. The flow-guiding dovetail wave heat sink according to any one of claims 1 to 3, characterized in that: At least one group of the discharge troughs is arranged in the extension direction thereof.

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