A heat sink

Abstract

The utility model relates to a radiator, including heat conduction matrix, the surface of heat conduction matrix is equipped with heat exchange structure, the cross section of heat exchange structure is regular hexagon, heat exchange structure extends along characteristic lead, and heat exchange structure still arranges along characteristic track line. Adopt the technical scheme provided by the utility model, increased the contact area between heat exchange structure and nearby fluid, can heat energy that heat conduction matrix absorbs can be more effectively transmitted to fluid through heat exchange structure to the fluid, thereby the heat dissipation efficiency of radiator has been improved greatly, in addition, the heat exchange structure that cross section is regular hexagon also slows down the flow speed of its nearby fluid, makes fluid to be able to carry out heat exchange with heat exchange structure in more time, is favorable to fluid carrying and emitting more heat energy, further improved the heat dissipation efficiency of radiator, according to actual measurement, the radiator provided by the utility model compares the radiator under the same condition, and its heat dissipation efficiency can improve 15% 40%.

Description

Technical Field

[0001] This utility model belongs to the field of radiator technology, and in particular relates to a radiator. Background Technology

[0002] Currently, to dissipate heat generated by electrical components during operation, radiators are widely used in mechanical equipment or instruments in fields such as chemical industry, fertilizer industry, natural gas liquefaction, aviation, automobiles, internal combustion locomotives, construction machinery, air separation, petrochemicals, refrigeration, air conditioning, and cryogenics. Existing heat dissipation methods mainly include three types: ventilation cooling, coolant circulation cooling, and radiator heat absorption cooling. In existing technologies, to improve the heat dissipation efficiency inside the chassis, the above heat dissipation methods are often combined. Direct heat absorption cooling by the radiator is still a common heat dissipation method in existing technologies. Existing radiator structures typically include a heat-conducting substrate that is in direct contact with the heat-generating element. The heat-conducting substrate is used to absorb the heat generated by the heat-generating element. The surface of the heat-conducting substrate can be provided with heat exchange fins or heat exchange teeth, and corresponding heat exchange channels can also be provided inside the heat-conducting substrate. The principle is to use the fluid flowing through the surface of the heat exchange fins, heat exchange teeth, or heat exchange channels to absorb the heat energy absorbed by the heat-conducting substrate.

[0003] For example, patent document CN109076716B discloses a radiator that can improve heat dissipation performance while maintaining a constant lower limit for the distance between adjacent heat dissipation fins. The radiator has multiple heat dissipation fins on a base. The cross-sectional shape of the heat dissipation fins along the base is a concave-convex shape inscribed in a regular hexagon. The convex portion of the concave-convex shape connects to the regular hexagon. For adjacent heat dissipation fins, the sides of the regular hexagon contacted by the convex portion are opposite to each other over the entire area, and the distance between the opposite sides (i.e., the inter-side distance) is configured to be equal. Using the above-mentioned patented technology, by setting the arrangement of the fins, the contact area between the fins and the airflow passing between the fins is increased, thus improving the heat dissipation effect to a certain extent. However, the heat exchange fins are always continuously arranged along the surface of the heat-conducting substrate, and the surface area of ​​the heat exchange fins cannot be increased indefinitely, thus limiting the improvement in heat dissipation efficiency. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a heat sink.

[0005] This utility model provides a heat sink, including a heat-conducting substrate, the surface of which is provided with a heat exchange structure, the cross-section of which is a regular hexagon, the heat exchange structure extends along a characteristic lead line, and the heat exchange structure is also arranged along a characteristic trajectory line.

[0006] The heat exchange structure is a heat exchange tooth, which is fixed to the outer surface of the heat-conducting substrate. The feature lead is a straight line segment, a curved line segment, or a broken line segment. The feature trajectory line is a straight line segment, a curved line segment, a spiral line segment, a broken line segment, or a closed-loop graphic contour line. All the heat exchange teeth form a heat exchange tooth array.

[0007] The outline of the closed-loop graphic is a circle, an ellipse, an equilateral triangle, a regular square, a regular pentagon, or a regular hexagon.

[0008] The heat-conducting substrate and the heat-exchange teeth are manufactured as a single piece.

[0009] The heat exchange tooth array can be a rectangular array, a circular array, a spiral array, a path array, or a polygonal array.

[0010] The heat exchange structure is a heat exchange channel, which is disposed in the heat-conducting substrate. The characteristic lead is a straight line segment, a curved segment, or a broken line segment, and the characteristic trajectory line is a straight line segment.

[0011] The thermally conductive substrate and the heat exchange channel are manufactured as a single unit.

[0012] At least a portion of the feature lead is perpendicular to one side of the outer surface of the thermally conductive substrate.

[0013] At least a portion of the characteristic trajectory line is parallel or tangent to one of the edge contour lines of the thermally conductive substrate.

[0014] The thermally conductive substrate is rectangular or cylindrical in shape.

[0015] The beneficial effects of this utility model are as follows: By adopting the technical solution provided by this utility model, the cross-section of the heat exchange structure is set to a regular hexagon, which increases the contact area between the heat exchange structure and the nearby fluid. This allows the heat energy absorbed by the heat-conducting substrate to be transferred to the fluid more effectively through the heat exchange structure, thereby significantly improving the heat dissipation efficiency of the radiator. In addition, the hexagonal cross-section of the heat exchange structure also slows down the flow velocity of the nearby fluid, allowing the fluid to exchange heat with the heat exchange structure for a longer period of time. This is beneficial for the fluid to carry and dissipate more heat energy, further improving the heat dissipation efficiency of the radiator. According to actual calculations, the heat dissipation efficiency of the radiator provided by this utility model can be increased by 15%-40% compared with radiators under the same conditions. Attached Figure Description

[0016] Figure 1 This is a front view of the radiator of this utility model; Figure 2 This is a top view of the radiator of this utility model.

[0017] In the figure: 1-heat-conducting substrate, 2-heat-exchange teeth, 3-heat-exchange flow channel. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings, but the scope of protection claimed is not limited to the description. This utility model provides a heat sink, such as Figures 1 to 2 As shown, it includes a heat-conducting substrate 1, the surface of which is provided with a heat exchange structure. The cross-section of the heat exchange structure is a regular hexagon. The heat exchange structure extends along the characteristic lead line and is also arranged along the characteristic trajectory line.

[0019] By adopting the technical solution provided by this utility model, the cross-section of the heat exchange structure is set to a regular hexagon, which increases the contact area between the heat exchange structure and the nearby fluid. This allows the heat energy absorbed by the heat-conducting substrate to be transferred to the fluid more effectively through the heat exchange structure, thereby significantly improving the heat dissipation efficiency of the radiator. In addition, the regular hexagonal cross-section of the heat exchange structure also slows down the flow velocity of the nearby fluid, allowing the fluid to exchange heat with the heat exchange structure for a longer period of time. This is beneficial for the fluid to carry and dissipate more heat energy, further improving the heat dissipation efficiency of the radiator. According to actual calculations, the heat dissipation efficiency of the radiator provided by this utility model can be increased by 15%-40% compared with radiators under the same conditions.

[0020] Specifically, the heat exchange structure consists of heat exchange teeth 2, which are fixed to the outer surface of the heat-conducting substrate 1. The characteristic leads are straight lines, curved lines, or broken lines, and the characteristic trajectory lines are straight lines, curved lines, spiral lines, broken lines, or closed-loop graphic contour lines. All heat exchange teeth 2 form an array of heat exchange teeth 2. Preferably, the closed-loop graphic contour line is circular, elliptical, equilateral triangle, square, pentagon, or hexagonal. The heat-conducting substrate 1 and the heat exchange teeth 2 are integrally manufactured. The array of heat exchange teeth 2 can be rectangular, circular, spiral, path, or polygonal.

[0021] Furthermore, the heat exchange structure is a heat exchange channel 3, which is disposed within the heat-conducting substrate 1. The characteristic leads are straight segments, curved segments, or broken line segments, and the characteristic trajectory lines are straight segments. The heat-conducting substrate 1 and the heat exchange channel 3 are integrally manufactured. At least a portion of the characteristic leads is perpendicular to one side of the outer surface of the heat-conducting substrate 1. At least a portion of the characteristic trajectory lines is parallel to or tangent to one edge contour line of the heat-conducting substrate 1. Preferably, the heat-conducting substrate 1 is cuboid or cylindrical in shape, and the material of the heat-conducting substrate 1 is aluminum alloy.

Claims

1. A radiator, characterized in that: It includes a heat-conducting substrate (1), the surface of which is provided with a heat exchange structure, the cross-section of which is a regular hexagon, the heat exchange structure extends along a characteristic lead line, and the heat exchange structure is also arranged along a characteristic trajectory line.

2. A radiator as described in claim 1, characterized in that: The heat exchange structure is a heat exchange tooth (2), which is fixed to the outer surface of the heat-conducting substrate (1). The feature lead is a straight line segment, a curved line segment, or a broken line segment. The feature trajectory line is a straight line segment, a curved line segment, a spiral line segment, a broken line segment, or a closed-loop graphic contour line. All the heat exchange teeth (2) form a heat exchange tooth array.

3. A radiator as described in claim 2, characterized in that: The outline of the closed-loop graphic is a circle, an ellipse, an equilateral triangle, a regular square, a regular pentagon, or a regular hexagon.

4. A radiator as described in claim 2, characterized in that: The heat-conducting substrate (1) and the heat-exchange teeth (2) are manufactured as a single unit.

5. A radiator as described in claim 2, characterized in that: The heat exchange tooth array can be a rectangular array, a circular array, a spiral array, a path array, or a polygonal array.

6. A radiator as described in claim 1, characterized in that: The heat exchange structure is a heat exchange channel (3), which is disposed in the heat-conducting substrate (1). The characteristic lead is a straight line segment, a curved line segment, or a broken line segment, and the characteristic trajectory line is a straight line segment.

7. A radiator as described in claim 6, characterized in that: The heat-conducting substrate (1) and the heat exchange channel (3) are integrally manufactured.

8. A radiator as described in claim 1, 2, or 6, characterized in that: At least a portion of the feature lead is perpendicular to one side of the outer surface of the thermally conductive substrate (1).

9. A radiator as described in claim 1, 2, or 6, characterized in that: At least a portion of the characteristic trajectory line is parallel to or tangent to one of the edge contour lines of the thermally conductive substrate (1).

10. A radiator as described in claim 1, characterized in that: The thermally conductive substrate (1) is rectangular or cylindrical in shape.

Images