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Heat radiator and its producing method

一种散热翅片、制造方法的技术，应用在散热器的制造及散热翅片的形成领域，能够解决作业人员受伤、元件损伤等问题，达到提高商品价值、预防损伤、提高散热效果的效果

Inactive Publication Date: 2009-01-21
NAKAMURA SEISAKUSHO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] For this reason, when the tongue-shaped fins are formed by the method disclosed in the above-mentioned patent documents, the corners on both sides of the front end of the tongue-shaped fins are formed at an angle of approximately 90 degrees, and sharp edges are formed at the corners. There is a risk of injury due to contact with hands, etc. during operation, transportation, or installation of electronic equipment
In addition, when the heat sinks come into contact with each other or with electronic equipment, there is a risk of damage to the components of the other party that are in contact with the corners of the tongue-shaped fins.

Method used

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  • Heat radiator and its producing method
  • Heat radiator and its producing method
  • Heat radiator and its producing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] figure 1 It is a perspective view showing the radiator of Embodiment 1 of the present invention, figure 2 yes means figure 1 perspective view of the manufacturing method of the heat sink, image 3 It is a sectional view showing the part cut by the A-A line. The metal material used in the heat sink of this example can be processed plastically and is a metal material with good heat transfer coefficient. For example, a metal plate having a predetermined thickness is used, which is formed of a material such as aluminum, aluminum alloy, copper alloy, or stainless steel.

[0057] The heat sink 1 of this example is composed of a metal plate 2 and a plurality of fins 3 integrally formed on the surface. Each heat dissipation fin 3 extends parallel to the short-side direction of the metal plate 2 . In addition, these plural fins 3 protrude at approximately the same angle, and are formed in parallel at approximately the same intervals. In addition, the heat radiation fin 3 ...

Embodiment 2

[0076] Figure 10 Example 2 of the present invention is shown, showing a method of increasing the surface area of ​​the heat radiation fins formed on the heat sink. The planing tool 10 used in Example 2 is substantially the same as the planing tool 7 used in Example 1, except that a plurality of recesses 11 are formed on the edge portion 10a perpendicular to the moving direction at the front end on the bottom side. This planing tool 10 is formed with two slopes 10b, 10c inclined at a predetermined angle from the blade portion 10a, and a step portion 10d is formed between the two slopes 10b, 10c, which is different from the planing tool 7 shown in Embodiment 1. same.

[0077] Same as above-mentioned Embodiment 1, on the band-shaped metal plate 2 supplied sequentially from the supply device, a guide hole 2a having a function as a positioning and locking portion is formed, and the pushing tool is pushed from the other side of the band-shaped metal plate 2 simultaneously. 9 push...

Embodiment 3

[0081] Figure 11 Embodiment 3 of the present invention is shown, showing a heat sink manufacturing method in which a plurality of fin rows are simultaneously formed on a band-shaped metal plate 2 . The planing tool 20 used in this embodiment 3 is also substantially the same as the planing tool 7 used in embodiment 1, the difference is that, as Figure 11 As shown, a deep dividing groove 21 is formed in the center of the blade portion perpendicular to the moving direction at the front end on the bottom surface side, and the blade portion is divided into two to form a pair of blade portions 22,23. In addition, the planing tool 20 is formed with two inclined surfaces 22a, 22b and 23a, 23b inclined at a predetermined angle from the respective blade portions 22, 23, and a stepped portion 22c, 23c.

[0082] On the belt-shaped metal plate 2 sequentially supplied from the supply device, the guide hole 2a having the function of positioning and locking part is perforated, and the pre...

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Abstract

In a method of manufacturing a radiator, the blade of a carving tool is applied at a specific angle to the surface of a metal plate with a high coefficient of thermal conductivity, the carving tool is advanced while the angle is maintained, and the surface of the metal plate is carved out to form plate-shaped heat-radiating fins vertically upward. A radiator is manufactured in which a plurality of heat-radiating fins are integrally formed vertically upward at a specific pitch from a single metal plate by repeating a step in which the carving tool is retracted at a specific pitch, the metal plate is carved out, and a heat-radiating fin is formed. A radiator that has high radiation efficiency and is highly safe during handling can be manufactured at low cost.

Description

technical field [0001] The present invention relates to a heat sink for efficiently dissipating heat generated from electronic components such as semiconductor integrated circuits, and a method of manufacturing a heat sink for integrally molding the heat sink by erecting plate-shaped heat dissipation fins from a metal plate. Background technique [0002] Electronic components such as semiconductor integrated circuits, which are in the process of miniaturization and high density, generate heat during use. Therefore, a heat sink for heat dissipation is installed in the module housing the electronic components. In addition, forced cooling is performed with a cooling fan as needed. [0003] A heat sink generally used to dissipate heat from electronic components such as semiconductor integrated circuits has a structure in which a large number of comb-shaped heat dissipation fins stand vertically on a substrate. By joining the heat sink to the module, the heat generated during t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23D3/00B23D13/00B23P15/26F28F3/04H01L23/36H05K7/20B21D53/02
CPCB23P2700/10F28F3/04H01L23/3672H01L21/4878H01L2924/0002Y10T29/4935B21J5/068H01L2924/00
Inventor 宫原英行
Owner NAKAMURA SEISAKUSHO KK
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