A staggered fin structure for automotive applications that facilitates heat dissipation

Abstract

This utility model provides a staggered-tooth fin structure for automotive applications that facilitates heat dissipation, relating to the field of fin heat dissipation technology. It includes a fin body with spaced-apart strip-shaped placement grooves. Several equally spaced serrated stamped plates are arranged within these grooves. Serrated secondary plates are inserted into the placement grooves. The serrated stamped plates and serrated secondary plates are staggered. Corresponding welding slots are provided on the serrated stamped plates and serrated secondary plates. Brazed beams pass through these welding slots. Filling slots are provided on both the front and rear sides of the serrated stamped plates and serrated secondary plates, and brazing fillers are inserted into these filling slots. This utility model uses a separate fin body and serrated secondary plates for the staggered-tooth fin structure, which facilitates the avoidance of shortened service life caused by corrosion from stamping burrs.

Description

Technical Field

[0001] This utility model relates to the field of finned heat dissipation technology, specifically to a staggered toothed fin structure for automobiles that facilitates heat dissipation. Background Technology

[0002] The intercooler is a key component of a turbocharger system, used to cool high-temperature compressed air and improve engine combustion efficiency. As the core heat dissipation element of the intercooler, the design, materials, and manufacturing process of the heat exchange fins directly affect heat dissipation performance, airflow resistance, and durability. The staggered fins, with their serrated arrangement and staggered distribution of adjacent fins, can increase the heat exchange area per unit space, enhance turbulence, and improve heat exchange efficiency.

[0003] However, during the stamping process of staggered tooth fins, the complex cutting edge of the staggered tooth structure is more prone to burrs due to uneven local stress. Burrs will destroy the streamline structure of the fin surface, leading to stress concentration, increased flow resistance, local turbulence, mechanical peeling of the oxide layer, exposure of fresh metal for continuous corrosion, and greatly reducing the service life of the intercooler. On the other hand, the staggered tooth fin structure of one-piece stamping is complex, and the burrs are hidden and have various shapes, which are difficult to remove uniformly, increasing processing costs. Furthermore, excessive processing will destroy the fin tooth shape and affect heat exchange efficiency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a staggered toothed fin structure for automotive applications that facilitates heat dissipation, thus solving the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A staggered fin structure for automotive applications that facilitates heat dissipation includes a fin body with spaced strip-shaped placement grooves on the fin body. Several equally spaced serrated stamping plates are placed in the placement grooves, and serrated sub-plates are inserted into the placement grooves. The serrated stamping plates and serrated sub-plates are staggered.

[0009] Preferably, the serrated stamping plate and the serrated sub-plate are respectively provided with welding through grooves, and brazed beams are provided in the welding through grooves. The brazed beams and the sidewalls of the welding through grooves are provided with brazing gaps.

[0010] Preferably, the front and rear sides of the serrated stamping plate and the serrated sub-plate are provided with filling slots, and brazing blocks are inserted into the filling slots. A snap-fit ​​groove is provided on the lower side of the brazing block. The snap-fit ​​groove is inserted into the upper side of the brazing beam rod with a concave-convex fit. The upper and lower sides of the brazing block are flush with the side walls of the serrated stamping plate and the serrated sub-plate.

[0011] Preferably, a filling block is provided in the filling slot, and the filling block is provided in a concave-convex fit directly below the brazed beam rod, and the side wall of the filling block slides and abuts against the inner wall of the snap-fit ​​groove.

[0012] Preferably, the cross-section of both the sawtooth stamping plate and the sawtooth sub-plate is configured as a combination of several trapezoidal sawtooth plates connected end to end. The trapezoidal sawtooth plate includes an integrally formed flat plate and protrusions inclined on both sides of the flat plate. The flat plates of the sawtooth stamping plate and the sawtooth sub-plate are staggered, and the flat plate and the protrusions are connected with rounded corners.

[0013] (III) Beneficial Effects

[0014] This invention provides a staggered-tooth fin structure for automotive applications that facilitates heat dissipation. It offers the following advantages:

[0015] 1. In this utility model, the original integral stamped toothed structure is replaced by a split fin body and a serrated sub-plate. The serrated stamping plate and the serrated sub-plate are set as strip structures, which facilitates the grinding and removal of burrs and avoids burr corrosion from affecting the service life of the fins.

[0016] 2. In this utility model, the beam rod is brazed to the welding through groove, which increases the welding area and improves the welding strength between the sawtooth stamping plate and the sawtooth sub-plate.

[0017] 3. In this utility model, the brazing block is placed in a concave-convex fit at the filling groove, which can play a positioning role in the assembly process of the sawtooth stamping plate and the sawtooth sub-plate, and prevent the sawtooth sub-plate from shaking and misaligning during welding. At the same time, the brazing block melts during welding to form a seal between the weld seam of the sawtooth stamping plate and the sawtooth sub-plate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a staggered toothed fin structure for automobiles that facilitates heat dissipation, according to the present invention.

[0019] Figure 2 for Figure 1 Enlarged view of a portion of point A in the middle;

[0020] Figure 3 This is a partial cross-sectional view of the staggered tooth fin structure in this utility model.

[0021] In the figure: 1. Fin body; 101. Serrated stamping plate; 102. Connecting plate; 2. Serrated sub-plate; 3. Brazed beam; 4. Filler slot; 5. Filler block; 6. Brazed molten block. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] This utility model embodiment provides a staggered toothed fin structure for automotive applications that facilitates heat dissipation, such as... Figure 1-3 As shown, the device includes a fin body 1 with strip-shaped placement grooves spaced apart on the fin body 1. The placement grooves divide the fin body 1 into strips by several equally spaced serrated stamping plates 101. Connecting plates 102 are integrally formed at the ends of several serrated stamping plates 101. Serrated auxiliary plates 2 are inserted into the placement grooves with a concave-convex fit. The serrated auxiliary plates 2 are configured as strip structures. The serrated stamping plates 101 and serrated auxiliary plates 2 are staggered and arranged as strips, allowing for direct deburring on both sides to avoid corrosion caused by burrs.

[0024] The cross-sections of the sawtooth stamping plate 101 and the sawtooth auxiliary plate 2 are both configured as a combination of several trapezoidal sawtooth plates connected end to end. The trapezoidal sawtooth plate includes an integrally formed flat plate and protrusions inclined on both sides of the flat plate. The flat plates of the sawtooth stamping plate 101 and the sawtooth auxiliary plate 2 are staggered and partially overlap, which can be used for brazing. The flat plate and the protrusions are connected with rounded corners.

[0025] The overlapping portions of the serrated stamping plate 101 and the serrated auxiliary plate 2 are respectively provided with welding slots. A brazed beam 3 passes through the welding slot. A brazed gap is provided between the brazed beam 3 and the side wall of the welding slot. The brazed beam 3 increases the welding surface and improves the stability of the serrated stamping plate 101 and the serrated auxiliary plate 2. Filling slots 4 are provided on both the front and rear sides of the serrated stamping plate 101 and the serrated auxiliary plate 2. A filling block 5 is provided in the filling slot 4. The filling block 5 is positioned directly below the brazed beam 3 with a concave-convex fit. A brazing molten metal block 6 is inserted into the filling slot. A snap-fit ​​is provided on the lower side of the brazing molten metal block 6. The through groove is inserted into the upper side of the brazed beam 3 with a concave-convex fit. The side wall of the filling block 5 slides and abuts against the inner wall of the through groove. The brazing molten block 6 is made of the same material as the brazing material. Heating the brazing molten block 6 can heat and melt it to fill the filling slot 4 to form a seal. Before brazing, the brazing molten block 6 is inserted into the filling slot 4 with a concave-convex fit to limit the sawtooth stamping plate 101 and the sawtooth sub-plate 2 to ensure that the sawtooth stamping plate 101 and the sawtooth sub-plate 2 will not shake. After heating and brazing, grinding can make the upper and lower sides of the brazing molten block 6 flush with the side walls of the sawtooth stamping plate 101 and the sawtooth sub-plate 2.

[0026] Working principle:

[0027] In this invention, the fin body 1 is divided into strip-shaped serrated stamping plates 101 by a placement groove, which facilitates the burr removal process on both sides of the serrated stamping plates 101 and the serrated sub-plates 2, thus avoiding corrosion of the fin structure caused by burrs. During the assembly of the fin body 1 and the serrated sub-plates 2, the serrated sub-plates 2 are inserted into the placement groove, aligning the welding slots on the serrated stamping plates 101 and the serrated sub-plates 2. The brazed beam rod 3 is then placed in the welding slot, and the brazing molten block is then... 6 is inserted into the filling slot 4 to ensure the stable alignment of the fin body 1 and the sawtooth sub-plate 2 before welding. The welding stability of the sawtooth stamping plate 101 and the sawtooth sub-plate 2 is increased by brazing the brazing gap between the brazing beam rod 3 and the welding through slot. Then, the brazing molten block 6 is heated and melted to fill the gap between the welding through slot, the filling slot 4, the filling block 5 and the brazing molten block 6 to form a sealed weld, which further improves the stability of the connection between the sawtooth stamping plate 101 and the sawtooth sub-plate 2.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A staggered fin structure for an automobile which facilitates heat dissipation, comprising a fin body, characterized by: The fin body is provided with strip-shaped placement grooves at intervals. The placement grooves hold several equally spaced serrated stamping plates of the fin body. Serrated sub-plates are inserted into the placement grooves. The serrated stamping plates and serrated sub-plates are arranged in a staggered manner.

2. The staggered fin structure for an automobile according to claim 1, wherein: The serrated stamping plate and the serrated sub-plate are respectively provided with welding through slots, and brazed beams are inserted in the welding through slots. Brazed gaps are provided between the brazed beams and the side walls of the welding through slots.

3. The staggered fin structure according to claim 2, wherein: Both the front and rear sides of the serrated stamping plate and the serrated sub-plate are provided with filling slots. A brazing block is inserted into the filling slot. A snap-fit ​​groove is provided on the lower side of the brazing block. The snap-fit ​​groove is inserted into the upper side of the brazing beam rod with a concave-convex fit. The upper and lower sides of the brazing block are flush with the side walls of the serrated stamping plate and the serrated sub-plate.

4. The staggered fin structure according to claim 3, wherein: A filling block is provided in the filling slot, and the filling block is arranged in a concave-convex fit directly below the brazed beam rod. The side wall of the filling block slides and abuts against the inner wall of the snap-fit ​​groove.

5. The automotive staggered fin structure for easy heat dissipation according to claim 4, characterized in that: The cross-section of both the serrated stamping plate and the serrated sub-plate is configured as a combination of several trapezoidal serrated plates connected end to end. The trapezoidal serrated plate includes an integrally formed flat plate and protrusions inclined on both sides of the flat plate. The flat plates of the serrated stamping plate and the serrated sub-plate are staggered and the flat plate and the protrusions are connected with rounded corners.

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