Angle bulge fin and radiator applying same

Abstract

The utility model relates to an angle bulge fin and a radiator using the same, the angle bulge fin comprises a fin main body, the fin main body is integrally formed by bending a metal plate, and the bending shape is a wave shape; the fin body comprises a plurality of bent parts forming wave crests and wave troughs, a supporting part is arranged between every two adjacent bent parts, and heat dissipation channels are formed between the adjacent supporting parts and the corresponding bent parts. A plurality of bumps are formed on the surface of the supporting part in the length direction of the supporting part, each bump comprises a first bump and a second bump which are in an angular shape and are integrally formed, and the angular opening direction is consistent with the length direction of the supporting part. The layout of the formed heat dissipation channel is optimized, so that the heat exchange efficiency is improved, and the heat exchange performance is improved; compared with a right-angle bulge in the prior art, through the arrangement of the angular bulge, the passing ability of impurities such as dust is improved, the number and time of the impurities staying before the bulge are reduced, the cleanliness of the heat dissipation channel is guaranteed, and then the heat exchange effect of the heat dissipation fins is further improved.

Description

Technical Field

[0001] This utility model relates to the field of radiator technology, specifically to a radiator with angular bulging fins and the application thereof. Background Technology

[0002] Agricultural tractors are mechanical devices used in agricultural production for field operations such as tilling, land preparation, sowing, harvesting, and transportation. They can be classified into various types based on their structure and function, including wheeled, tracked, and walk-behind tractors. Currently, with the increasing demand for farmland, the power of agricultural tractors is increasing. However, the size limitations of the hood impose high requirements on the size of the radiator. The original radiator's heat dissipation fin structure is a straight, bulging fin. Due to limitations in the fin forming mold and the fin size, the bulge cannot be too long, reducing the contact time and area between the airflow and the fins, significantly limiting the heat dissipation effect. Furthermore, agricultural tractors operate in dusty and debris-rich environments. Under the high airflow and pressure of the engine fan, the ordinary straight, bulging fins are easily blocked. To achieve turbulence and ensure sufficient heat exchange, the airflow through the heat dissipation channels is poor, further reducing the overall heat dissipation performance. Utility Model Content

[0003] To address the technical problems existing in the background art, this utility model provides a angular bulge fin and a heat sink using the same.

[0004] The technical solution of this utility model is as follows:

[0005] A horn-shaped fin includes a fin body, which is integrally formed by bending a metal sheet, and the bending shape is wavy.

[0006] The fin body includes several bends that form crests and troughs, and a support is provided between two adjacent bends, and a heat dissipation channel is formed between the adjacent support and the corresponding bend.

[0007] The surface of the support portion is formed with a plurality of bulges along its length direction. The bulges include a first bulge and a second bulge that are angular and integrally formed, and the angular opening direction is consistent with the length direction of the support portion.

[0008] To achieve the desired airflow guidance effect, enhance turbulence while avoiding excessive resistance, and ensure a balance between heat dissipation and wind resistance, the angle formed by the extension lines of the centerlines of the first and second protrusions in their extension directions is 50°-70°.

[0009] To ensure uniform heat dissipation, avoid local overheating, and maintain structural strength, several bulges on the same support section are arranged in parallel and spaced apart, with a spacing of 5cm-7cm.

[0010] To reduce airflow resistance and increase the contact area with air to improve heat dissipation efficiency, both the first and second protrusions are designed as arc-shaped surfaces that are raised in the middle and gradually decrease towards both sides.

[0011] To enhance airflow disturbance, avoid uneven heat dissipation caused by straight flow, and improve overall heat dissipation performance, the bulges on adjacent support parts are staggered.

[0012] To optimize airflow distribution, improve heat dissipation efficiency, and ensure structural compactness, the distance between the center lines of adjacent peaks and troughs is 4.5cm-6cm.

[0013] To ensure sufficient space for heat dissipation and allow for airflow, the length of the bend is less than the minimum distance between adjacent bends.

[0014] To ensure sufficient heat dissipation area while maintaining structural stability, the height of the support is 7.5cm-8.5cm, and the lengths of the first and second protrusions are not less than 1 / 2 of the height of the support.

[0015] A radiator is provided with the aforementioned angular bulging fins. The radiator includes two transverse side plates and two longitudinal side plates forming a rectangular shape. Several heat dissipation pipes are arranged at intervals between the two transverse side plates. The fin body is installed between two adjacent heat dissipation pipes, and the support part abuts against the heat dissipation pipes.

[0016] To ensure efficient heat exchange with the cooling medium, the heat dissipation pipe penetrates and is fixed to the longitudinal side plate, and the heat dissipation pipe has multiple medium channels formed by extrusion molding, with the heat dissipation channels arranged perpendicular to the extension direction of the medium channels.

[0017] The beneficial effects of this utility model are as follows: This utility model is a angular bulge fin and a heat sink using it. Unlike existing fins, through the combination of a wave-shaped bending structure and angular bulge protrusions, more bulges can be set in a limited space, significantly increasing the airflow contact area and enhancing the turbulence effect. At the same time, through the size design of the support and bulge protrusions, the layout of the heat dissipation channel is optimized, effectively increasing wind resistance and increasing the contact area with external cold air, thereby increasing heat exchange efficiency and improving heat exchange performance. Moreover, through the setting of angular bulges, compared with the right-angle bulges in the prior art, the passage of dust and other impurities is improved, reducing the number and time of impurities staying in front of the bulges, ensuring the cleanliness of the heat dissipation channel, and further improving the heat exchange effect of the heat dissipation fins. Attached Figure Description

[0018] The advantages and features of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0019] In the attached diagram:

[0020] Figure 1 This is a schematic diagram of the folding of the fin body;

[0021] Figure 2 This is a structural diagram of the folded part of the fin body;

[0022] Figure 3 This is a partial unfolded diagram of the fin body;

[0023] Figure 4 A schematic diagram showing the installation of the finned body and the heat sink;

[0024] Figure 5 Side view of the fin body installation;

[0025] The components represented by the various reference numerals in the diagram are:

[0026] 1. Fin body; 2. Bending part; 3. Support part; 4. Heat dissipation channel; 5. Bulges; 51. First bulge; 52. Second bulge; 6. Transverse side plate; 7. Longitudinal side plate; 8. Heat dissipation pipe; 9. Medium channel. Detailed Implementation

[0027] Exemplary embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings.

[0028] Example

[0029] As mentioned in the background section, existing agricultural machinery radiators require high heat dissipation performance. Radiators typically employ heat dissipation fins for gas heat exchange, and raised bumps on these fins are used to turbulent the airflow, increasing the contact area and time between the airflow and the radiator fins to ensure effective heat dissipation. However, due to manufacturing limitations and the inherent size of the heat dissipation fins, the length and height of existing bumps are relatively small, reducing their turbulence-dissipating effect. Furthermore, the right-angled bump design makes the heat dissipation channel 4 prone to blockage, further reducing the heat dissipation performance of the agricultural machinery radiator. Therefore, the inventors have improved upon existing heat dissipation fins by designing a novel angled bump fin, which has been applied to radiators. The following detailed explanation, in conjunction with the accompanying illustrations, further illustrates this improvement.

[0030] This embodiment provides a angular bulge fin; see [link / reference] Figure 1This application proposes a fin body 1, integrally formed by bending a metal sheet, with the bent shape being wavy. Wavy bending refers to forming a periodic undulating structure through continuous alternating bending, specifically achieved using a continuous molding process. The fin includes several bends 2 with peaks and troughs. Unlike actual wavy shapes, the bends 2 in this design are horizontal, not arc-shaped. Supports 3 are provided between adjacent bends 2, forming a heat dissipation channel 4 between adjacent support 3 and the corresponding bend 2. The heat dissipation channel 4 is an airflow passage enclosed by adjacent support 3 and bends 2. Furthermore, the length of each bend 2 is less than the minimum distance between adjacent bends 2. Here, adjacent bends 2 refer to two adjacent bends 2 in the same horizontal direction, causing the cross-section of the heat dissipation channel 4 to form a triangular shape. This facilitates installation with the heat sink and ensures the appropriate dimensions of the heat dissipation channel 4.

[0031] In this scheme, combined with Figure 2 The distance between the centerlines of adjacent peaks and troughs is 4.5cm-6cm. The peak centerline refers to the centerline formed by extending the highest point of the raised portion along the bending direction in the wavy bending structure of the fin, and the trough centerline refers to the centerline formed by extending the lowest point of the concave portion along the bending direction. Setting the distance between adjacent centerlines to 4.5cm-6cm balances the contradiction between the number of heat dissipation channels and the heat dissipation area of ​​a single channel. It avoids the situation where too small a distance results in too many channels but increased airflow resistance per channel, or too large a distance results in too few channels and redundant heat dissipation area per channel. Compared with existing technologies, the peak-trough spacing of traditional fins is not optimized, usually using a fixed spacing or random distribution, leading to insufficient number of heat dissipation channels or mismatched heat dissipation areas per channel. This solution, by limiting the range of centerline spacing, creates a synergistic relationship between the number of channels and the area per channel, solving the problem that small-sized fins cannot simultaneously meet the heat dissipation requirements of high-horsepower engines.

[0032] In addition, the length of the support part 3 is controlled within the range of 7.5cm to 8.5cm. Specifically, it can be selected by the distance between the heat dissipation pipes 8 of the radiator. The length range is selected to ensure the longitudinal extension space of the heat dissipation channel 4 and avoid insufficient heat dissipation area due to the support part 3 being too short.

[0033] In this embodiment, unlike the prior art, it combines... Figure 3The support portion 3 has several raised bumps 5 formed along its length. These raised bumps 5 refer to localized bulges on the surface of the support portion 3, which can be formed using a stamping process. The raised bumps 5 on the same support portion 3 are arranged parallel and spaced apart. Each raised bump 5 includes an angled, integrally formed first protrusion 51 and second protrusion 52, with the angled opening direction aligned with the length direction of the support portion 3. In other words, the first protrusion 51 and the second protrusion 52 are both arranged at an angle, and the angle they form is aligned with the length direction of the support portion 3. The angled raised bumps 5 can change the direction of airflow and prolong the contact time with the airflow, increasing the contact area. Compared to existing technologies, the height of straight raised bumps is limited by the stamping process. This solution uses interlaced raised bumps 5 to achieve a larger effective projected area for protrusions of the same height.

[0034] In this scheme, combined with Figure 3 An appropriate spacing is maintained between adjacent bulges 5, which is 5cm-7cm in this embodiment. This allows the airflow to maintain a basic flow velocity through the gaps while forming vortices in the gaps between the bulges as it flows through the heat dissipation channel 4. When the airflow flows longitudinally along the heat dissipation channel 4, the bulges 5 guide the airflow to generate a lateral component, and the spaced bulge structure causes the airflow to change direction between adjacent bulges. This spaced layout avoids excessive obstruction of the airflow by continuous bulges and forms secondary flow through the gaps, enhancing the contact between the airflow and the fin surface. Moreover, both the first bulge 51 and the second bulge 52 are designed as arc-shaped surfaces with a central bulge that gradually decreases towards both sides. The arc-shaped surface with a central bulge that gradually decreases towards both sides means that the highest point of the bulge 5 is located at its central axis, and the height gradually decreases along the two side edges to form a continuous curved surface. Specifically, this can be achieved by using a die stamping process to form a continuous arc-shaped bulge structure on the surface of the support part 3. The arc-shaped structure can form a smooth transition contact surface when airflow passes through, reducing excessive obstruction of airflow by the protrusion. In addition, in conjunction with the angular bulge protrusion 5, dust and other impurities are less likely to accumulate in front of and behind the bulge protrusion 5, and can more easily pass through the heat dissipation channel 4, ensuring the cleanliness of the heat dissipation channel 4 and further ensuring the heat exchange effect.

[0035] Based on the above structure, the bulges 5 on adjacent support parts 3 are staggered, meaning that the bulge 5 on the previous support part 3 is located between two bulges 5 on adjacent support parts 3. This increases the complexity of the path within the heat dissipation channel 4, allowing the airflow to continuously collide with the bulges 5 as it passes through, thus achieving sufficient heat exchange. When the airflow passes through the heat dissipation channel 4, the alternating staggered bulges 5 create an interlaced flow path within the adjacent channel, extending the contact time between the airflow and the bulges 5.

[0036] In this embodiment, the angle formed by the extension of the center line of the first protrusion 51 and the second protrusion 52 in the extension direction is 50°-70°, which is the angle of the angular bulge protrusion 5. This design uses a 60° angle to ensure the contact area between the airflow and the bulge protrusion 5 and to avoid the airflow being diverted in a large direction towards the first protrusion 51 and the second protrusion 52, thereby avoiding the airflow taking too long to pass through the heat dissipation channel 4.

[0037] Based on the above structure, the lengths of the first protrusion 51 and the second protrusion 52 are greater than the height of the support 3. This greater length than the height of the support 3 increases the contact path between the airflow and the protrusion within the heat dissipation channel 4, thereby improving the heat exchange efficiency.

[0038] Secondly, this solution also provides a heat sink with this fin structure installed, combined with Figure 4 The radiator comprises two transverse side plates 6 and two longitudinal side plates 7, forming a rectangular shape. Several spaced-apart heat dissipation pipes 8 are arranged between the two transverse side plates 6. Each heat dissipation pipe 8 is a tubular heat-conducting component extending along the transverse side plates 6. Furthermore, the heat dissipation pipes 8 penetrate and are fixed to the longitudinal side plates 7 using a common fixing technique found in this design; existing solutions are sufficient. The fin body 1 is installed between two adjacent heat dissipation pipes 8, and the support portion 3 abuts against the heat dissipation pipes 8. Figure 5 The heat dissipation pipe 8 has multiple medium channels 9 formed by extrusion molding, and the extrusion position is a closed structure. Compared with the existing technology of multiple small-sized pipes installed at intervals, this can effectively reduce the air thermal resistance in the middle part after multiple pipes are assembled, and the assembly difficulty of the heat dissipation pipe 8 is greatly reduced. In addition, the heat dissipation channel 4 is arranged perpendicular to the extension direction of the medium channel 9. During heat exchange, the heat dissipation medium is introduced into the medium channel 9 to exchange heat with the airflow passing through the heat dissipation channel 4.

Claims

1. A type of angular bulge fin, characterized in that, It includes the fin body (1), which is integrally formed by bending a metal sheet, and the bending shape is wavy. The fin body (1) includes several bends (2) that form peaks and troughs. A support (3) is provided between two adjacent bends (2), and a heat dissipation channel (4) is formed between the adjacent support (3) and the corresponding bend (2). The surface of the support part (3) is formed with a plurality of bulges (5) along its length direction. The bulges include a first bulge (51) and a second bulge (52) that are angular and integrally formed, and the angular opening direction is consistent with the length direction of the support part (3).

2. The angular bulge fin according to claim 1, characterized in that, The angle formed by the extension of the center line of the first protrusion (51) and the second protrusion (52) in the extension direction is 50°-70°.

3. The angular bulge fin according to claim 1, characterized in that, Several bulges (5) located on the same support (3) are arranged in parallel and spaced apart, with a spacing of 5cm-7cm.

4. The angular bulge fin according to claim 1, characterized in that, Both the first protrusion (51) and the second protrusion (52) are configured as arc-shaped surfaces that are raised in the middle and gradually lower to both sides.

5. The angular bulge fin according to claim 1, characterized in that, The bulges (5) on adjacent support parts (3) are staggered.

6. The angular bulge fin according to claim 1, characterized in that, The distance between the midlines of adjacent crests and troughs is 4.5cm-6cm.

7. A horn-shaped fin according to claim 4, characterized in that, The length of the bent portion (2) is less than the minimum distance between adjacent bent portions (2).

8. A horn-shaped fin according to claim 1, characterized in that, The height of the support part (3) is 7.5cm-8.5cm, and the lengths of the first protrusion (51) and the second protrusion (52) are not less than 1 / 2 of the height of the support part (3).

9. A radiator, equipped with angular bulge fins as described in any one of claims 1-8, characterized in that, The radiator includes two horizontal side plates (6) and two vertical side plates (7) forming a rectangle. Several heat dissipation pipes (8) are arranged at intervals between the two horizontal side plates (6). The fin body (1) is installed between two adjacent heat dissipation pipes (8), and the support part (3) abuts against the heat dissipation pipes (8).

10. A radiator according to claim 9, characterized in that, The heat dissipation pipe (8) penetrates the longitudinal side plate (7) and is fixed thereto. The heat dissipation pipe (8) has multiple medium channels (9) formed by extrusion molding. The heat dissipation channels (4) are arranged perpendicular to the extension direction of the medium channels (9).

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