JP2006324657A - Heat-radiator device having low-melting metal alloy-coated layer and method of fabricating the same - Google Patents

Heat-radiator device having low-melting metal alloy-coated layer and method of fabricating the same Download PDF

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JP2006324657A
JP2006324657A JP2006127785A JP2006127785A JP2006324657A JP 2006324657 A JP2006324657 A JP 2006324657A JP 2006127785 A JP2006127785 A JP 2006127785A JP 2006127785 A JP2006127785 A JP 2006127785A JP 2006324657 A JP2006324657 A JP 2006324657A
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metal alloy
low
heat
point metal
coating layer
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Chunhoo Chan
チュンホー チャン
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Amulaire Thermal Tech Inc
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
    • H05K7/20409—Outer radiating structures on heat dissipating housings, e.g. fins integrated with the housing
    • H05K7/20427—Outer radiating structures on heat dissipating housings, e.g. fins integrated with the housing having radiation enhancing surface treatment, e.g. black coating

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat-radiator device having a low-melting metal alloy-coated layer adapted to eliminate an adhesion process that necessitates positioning, to improve work efficiency, and to raise a heat conductivity effect; and to provide a method of fabricating the device. <P>SOLUTION: The heat-radiator device has a heat radiator 1 and a low-melting metal alloy-coated layer 2. Fabricating the device involves a step of heating a low-melting metal alloy material to the melting point or higher, and spraying the low-melting metal alloy material that has become melted onto the heat radiator to produce the coated layer 2 directly on the heat radiator 1. A production time can be saved, operations become convenient, and moreover, a heat conduction effect can be enhanced by using the contact between the coated layer and the heat generating end. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は低融点金属合金被覆層を有する放熱装置とその製造方法に関し、特に、低融点金属合金材を放熱器に結合し、これにより、工程の時間を節約すると共に、ひいては熱伝導の効果をより高める低融点金属合金被覆層を有する放熱装置とその製造方法に関する。   The present invention relates to a heat dissipation device having a low-melting-point metal alloy coating layer and a method for manufacturing the same, and in particular, a low-melting-point metal alloy material is coupled to a heat radiator, thereby saving process time and thus increasing the effect of heat conduction. The present invention relates to a heat dissipating device having a lower melting point metal alloy coating layer and a method for manufacturing the same.

コンピュータ産業の高速の発展につれて、チップセット、中央処理装置（CPU）など発熱端の実行速度も速くなり、かつ、発熱端の放熱量が高くなる。発熱端が生じる高温を外部に排出し、発熱端が動作可能の範囲下で正常に作動するために、普通は大きい面積の放熱器を発熱端の放熱表面上に付け、放熱器の複数放熱板により放熱をさせる。従来の放熱装置として2003年11月11日付に掲示された特許文献１がある。   With the rapid development of the computer industry, the execution speed of heat generating ends such as chipsets and central processing units (CPUs) will increase, and the heat dissipation at the heat generating ends will increase. In order to discharge the high temperature generated at the heat generating end to the outside and operate normally within the range where the heat generating end can operate, normally a large area radiator is attached on the heat radiating surface of the heat generating end, and multiple heat sinks of the heat sink To dissipate heat. There exists patent document 1 posted on November 11, 2003 as a conventional heat radiating device.

発熱端が生じる熱量を確かに放熱器へ伝導するために、普通は発熱端と放熱器の間に導熱剤を設ける必要があり、前記放熱器が導熱剤と発熱端に接触し、発熱端が生じる高温を導熱剤と放熱器により排出し、発熱端を放熱して用いる。   In order to surely conduct the heat generated by the heat generating end to the heat sink, it is usually necessary to provide a heat conducting agent between the heat generating end and the heat dissipating device, and the heat sink contacts the heat conducting agent and the heat generating end. The generated high temperature is discharged by a heat conducting agent and a radiator, and the heat generating end is radiated and used.

しかし、前記の従来の放熱装置は導熱剤を導熱の媒体として用い、導熱剤の導熱係数ＴＣが低い（約２乃至３）ので、導熱効果が劣化し、チップセット、中央処理装置などの発熱端が生じる高温が放熱器へ伝送することが難しく、放熱効果が低下していた。   However, the conventional heat radiating device uses a heat conducting agent as a heat conducting medium, and since the heat conducting coefficient TC of the heat conducting agent is low (about 2 to 3), the heat conducting effect is deteriorated, and a heat generating end of a chip set, a central processing unit, etc. It is difficult to transmit the high temperature at which heat is generated to the radiator, and the heat dissipation effect has been reduced.

また、本発明に係る放熱装置は、低融点金属合金材を放熱器に固着し、低融点金属合金材を導熱の媒体として用いる。前記の低融点金属合金材の熱導熱係数が高いので、発熱端が生じる熱量が有効に放熱器へ伝送し、最良の放熱効果を得られる。
台湾特許ｔｗ５６２３９５号 In the heat dissipation device according to the present invention, the low melting point metal alloy material is fixed to the radiator and the low melting point metal alloy material is used as a heat conducting medium. Since the low-melting-point metal alloy material has a high thermal conductivity coefficient, the amount of heat generated by the heat generating end is effectively transmitted to the radiator, and the best heat dissipation effect can be obtained.
Taiwan patent tw562395

しかし、前記の低融点金属合金材は一体的に片状となっており単体個体であるので放熱器上に位置決め、粘着方法により放熱器上を固着する必要がある。よって、低融点金属合金材と放熱装置の結合は位置決めの問題を発生する可能性があり、製造の時間の浪費となり、作業の不便を招くと共に、低融点金属合金材と放熱装置の間を粘着させる方法により結合するので、両者の間の導熱係数が低下していた。   However, since the low-melting-point metal alloy material is integrally formed as a single piece, it is necessary to position and adhere to the radiator by an adhesion method on the radiator. Therefore, the coupling between the low melting point metal alloy material and the heat radiating device may cause positioning problems, resulting in wasted manufacturing time, inconvenience of work, and adhesion between the low melting point metal alloy material and the heat radiating device. The heat conduction coefficient between the two was lowered because of the coupling.

そこで、本発明者が前記の欠点の向上に鑑みて、合理的な設計で有効に前記の欠点を向上する本発明を見出した。   Therefore, in view of the improvement of the above-mentioned defects, the present inventor has found the present invention that effectively improves the above-described defects with a rational design.

本発明の主な目的は低融点金属合金被覆層を有する放熱装置とその製造方法を提供することにある。   A main object of the present invention is to provide a heat dissipating device having a low-melting point metal alloy coating layer and a manufacturing method thereof.

前記の目的を達成するために、低融点金属合金被覆層を有する放熱装置を提供する。これは放熱器と被覆層を含み、低融点金属合金材を融点以上まで加熱し、溶融状態の低融点金属合金材を、前記放熱器にスプレーし、低融点金属合金の被覆層を形成させ、前記被覆層を固体に冷却し、ここにより低融点金属合金被覆層を有する放熱器を製成する。   In order to achieve the above object, a heat dissipation device having a low melting point metal alloy coating layer is provided. This includes a radiator and a coating layer, heats the low melting point metal alloy material to a melting point or higher, sprays the molten low melting point metal alloy material onto the radiator, and forms a coating layer of the low melting point metal alloy, The coating layer is cooled to a solid, thereby producing a radiator having a low melting point metal alloy coating layer.

本発明の特徴と技術内容をより一層明瞭させるために、以下に本発明に係る詳細な説明と添付図面を参照して説明する。添付図面は参照と説明を提供するだけであり、これらの記載に限定されることはない。   To make the features and technical contents of the present invention clearer, the following description will be given with reference to the detailed description of the present invention and the accompanying drawings. The accompanying drawings only provide reference and description and are not limited to these descriptions.

本発明は低融点金属合金材を、直接に放熱器にスプレー被覆しており、位置決めで粘着などの操作を必要がすることはないので、位置決めの問題がない。こうして、製造の時間を節約し、作業が便利となり、且つ、低融点金属合金材と放熱器の間に、溶接方法を利用するのは、両者の間の熱伝導効果をより一層高める。   In the present invention, since the low melting point metal alloy material is directly spray-coated on the radiator, there is no problem of positioning because an operation such as adhesion is not required for positioning. Thus, the manufacturing time is saved, the operation is convenient, and the use of a welding method between the low-melting-point metal alloy material and the radiator further enhances the heat conduction effect between the two.

図1は低融点金属合金被覆層を有する放熱装置の製造方法を示す。以下にその工程を図２を参照し説明する。   FIG. 1 shows a method of manufacturing a heat dissipation device having a low melting point metal alloy coating layer. The process will be described below with reference to FIG.

（a）、放熱器１を形成する工程である。前記放熱器１は銅或いはアルミなどの良い導熱性の金属材からなり、前記放熱器１の形状及び構造は限定されるものではなく、前記放熱器1は各種タイプの放熱器が可能である。本実施の形態では、前記放熱器１は台座１１と前記台座１１により伸ば出した複数放熱板１２を有し、更にアルコールなどにより放熱器１に対する台座１１表面の清潔を適度に処理し、サンドペーパーの研磨により低融点金属合金材の吸着力を高める。   (A) A step of forming the radiator 1. The radiator 1 is made of a metal material having good heat conductivity such as copper or aluminum, and the shape and structure of the radiator 1 are not limited, and the radiator 1 can be various types of radiators. In the present embodiment, the radiator 1 has a pedestal 11 and a plurality of radiating plates 12 extended by the pedestal 11, and further cleans the surface of the pedestal 11 with respect to the radiator 1 with alcohol or the like, The adsorption power of the low melting point metal alloy material is increased by polishing the paper.

（b）、低融点金属合金材を融点以上まで加熱し、溶かせて溶融状態とする工程である。前記低融点金属合金材としては、鉛（なまり）、スズ或いは鉛錫合金などの融点が低い金属材料が可能である。   (B) is a step of heating the low melting point metal alloy material to the melting point or higher and melting it to a molten state. The low melting point metal alloy material may be a metal material having a low melting point such as lead (marine), tin, or lead tin alloy.

（c）、溶融状態の低融点金属合金材をスプレーガンにより前記放熱器１の台座１１にスプレーし、低融点金属合金の被覆層２を形成すると共に、前記被覆層２を放熱器１の台座１１の表面に結合させる。前記被覆層２の面積寸法と厚さは実際のニーズに応じて適度に変更することができ、その厚さはスプレーの往復回数により制御できる。   (C) A molten low melting point metal alloy material is sprayed onto the base 11 of the radiator 1 by a spray gun to form a coating layer 2 of the low melting point metal alloy, and the coating layer 2 is applied to the base of the radiator 1. 11 surfaces. The area size and thickness of the coating layer 2 can be appropriately changed according to actual needs, and the thickness can be controlled by the number of reciprocations of the spray.

（ｄ）、室温により冷却し、前記被覆層２を凝結させ固体とする。ここにより低融点金属合金材被覆層２を放熱器１に結合することが実現される。   (D) Cool at room temperature to condense the coating layer 2 into a solid. Thus, it is realized that the low melting point metal alloy material coating layer 2 is coupled to the radiator 1.

以上のそれぞれの工程は普通の場所で作成されるが、クリーンルームでも作成でき、効果がより良くなる。   Each of the above processes is created in a normal place, but it can also be created in a clean room, and the effect is improved.

図２に示すように、本発明の低融点金属合金被覆層を有する放熱装置は放熱器１と被覆層２を含み、前記放熱器１は台座１１と前記台座１１により伸ば出した複数放熱板１２を有し、前記被覆層２が低融点金属合金材を融点以上まで加熱し、かつ、放熱器１の台座１１にスプレーして形成される。ここにより、低融点金属合金材被覆層２の放熱装置を結合することができる。   As shown in FIG. 2, the heat dissipation device having the low melting point metal alloy coating layer of the present invention includes a radiator 1 and a coating layer 2, and the radiator 1 is a pedestal 11 and a plurality of radiating plates extended by the pedestal 11. 12, the coating layer 2 is formed by heating the low melting point metal alloy material to the melting point or higher and spraying it on the base 11 of the radiator 1. Thereby, the heat dissipation device of the low melting point metal alloy material covering layer 2 can be coupled.

本発明は低融点金属合金材が製作される被覆層２を放熱器１に固定し、前記被覆層２と発熱端を接触して利用し、低融点金属合金材を導熱の媒体として利用する。前記低融点金属合金材の導熱係数が高いので、泡（ホール）を発生することを避け、発熱端が生じる熱を放熱器へ有効に伝導され、良い放熱効果を発生するようになる。   In the present invention, the coating layer 2 on which the low-melting-point metal alloy material is manufactured is fixed to the radiator 1, and the coating layer 2 and the heat generating end are used in contact with each other, and the low-melting-point metal alloy material is used as a heat conducting medium. Since the low melting point metal alloy material has a high heat conduction coefficient, it avoids the generation of bubbles (holes), and the heat generated by the heat generating end is effectively conducted to the radiator, thereby producing a good heat dissipation effect.

しかし、前記は本発明の最良の実施の形態のみであり、本発明の特許請求の範囲はこれに限定されることはない。従って、本発明の明細書と添付図面で示した実施の形態と均等な実施形態についても共に本発明の特許請求の範囲に含まれることを言明する。   However, the above is only the best mode of the present invention, and the scope of claims of the present invention is not limited to this. Accordingly, it is stated that both the specification and the embodiments equivalent to the embodiments shown in the accompanying drawings are included in the claims of the present invention.

低融点金属合金材が直接にスプレーにより放熱器１に被覆し、位置決め、粘着などの操作を行うことはないので、低融点金属合金材（被覆層２）は位置決めの問題がなく製造の時間を節約でき、作業が便利となる。更に、低融点金属合金材と放熱器を溶接方法により接合し、両者を一体的にさせ、両者の熱伝送効果をより一層高める。   Since the low-melting-point metal alloy material directly coats the radiator 1 by spraying and does not perform operations such as positioning and adhesion, the low-melting-point metal alloy material (coating layer 2) has no positioning problem and takes time to manufacture. It saves money and makes work easier. Furthermore, the low-melting point metal alloy material and the radiator are joined by a welding method, and both are integrated to further enhance the heat transfer effect of both.

本発明に係る低融点金属合金被覆層を有する放熱装置の製造方法の流れ図を示す。The flowchart of the manufacturing method of the thermal radiation apparatus which has a low melting-point metal alloy coating layer based on this invention is shown. 本発明に係る低融点金属合金被覆層を有する放熱装置立体概略図を示す。The heat sink three-dimensional schematic diagram which has the low melting-point metal alloy coating layer based on this invention is shown.

符号の説明Explanation of symbols

１ 放熱器
２ 被覆層
１１ 台座
１２ 放熱板 1 radiator 2 coating layer 11 pedestal 12 heat sink

Claims (7)

低融点金属合金被覆層を有する放熱装置であって、
放熱器と、
低融点金属合金材により融点以上に加熱し前記放熱装置にスプレーされる被覆層と、を含むことを特徴とする低融点金属合金被覆層を有する放熱装置。 A heat dissipation device having a low melting point metal alloy coating layer,
A radiator,
A heat-dissipating device having a low-melting-point metal alloy coating layer, comprising a coating layer heated to a melting point or higher by a low-melting-point metal alloy material and sprayed on the heat-dissipating device. 前記放熱装置は台座と前記台座により伸ばした複数放熱板を有し、前記被覆層が前記台座上に形成されることを特徴とする請求項１に記載の低融点金属合金被覆層を有する放熱装置。   2. The heat dissipation device having a low melting point metal alloy coating layer according to claim 1, wherein the heat dissipation device has a pedestal and a plurality of heat radiation plates extended by the pedestal, and the coating layer is formed on the pedestal. . 前記低融点金属合金材は鉛、スズ或いは鉛錫合金であることを特徴とする請求項１に記載の低融点金属合金被覆層を有する放熱装置。   The heat dissipation device having a low-melting-point metal alloy coating layer according to claim 1, wherein the low-melting-point metal alloy material is lead, tin, or a lead-tin alloy. 低融点金属合金被覆層を有する放熱装置の製造方法であって、
放熱器を形成する工程と、
低融点金属合金材を融点以上まで加熱する工程と、
溶融状態の低融点金属合金材を、前記放熱器にスプレーし、低融点金属合金の被覆層を形成する工程と、
被覆層を固体に冷却し、ここにより低融点金属合金被覆層を有する放熱器を製成する工程と、を有することを特徴とする低融点金属合金被覆層を有する放熱装置の製造方法。 A method of manufacturing a heat dissipation device having a low melting point metal alloy coating layer,
Forming a radiator;
Heating the low melting point metal alloy material to the melting point or higher;
Spraying the melted low melting point metal alloy material onto the radiator to form a coating layer of the low melting point metal alloy;
And a step of cooling the coating layer to a solid, thereby forming a radiator having the low-melting-point metal alloy coating layer, thereby producing a heat dissipation device having a low-melting-point metal alloy coating layer. 前記低融点金属合金材は鉛、錫或いは鉛錫合金であることを特徴とする請求項４に記載の低融点金属合金被覆層を有する放熱装置の製造方法。   The method for manufacturing a heat dissipation device having a low-melting-point metal alloy coating layer according to claim 4, wherein the low-melting-point metal alloy material is lead, tin, or a lead-tin alloy. 前記融点状態の低融点金属合金材はスプレーガンにより前記放熱器にスプレーされることを特徴とする請求項４に記載の低融点金属合金被覆層を有する放熱装置の製造方法。   The method of manufacturing a heat dissipation device having a low-melting-point metal alloy coating layer according to claim 4, wherein the low-melting-point metal alloy material in the melting point state is sprayed on the radiator by a spray gun. 前記被覆層は室温により固体に冷却されることを特徴とする請求項４に記載の低融点金属合金被覆層を有する放熱装置の製造方法。   The method for manufacturing a heat dissipation device having a low melting point metal alloy coating layer according to claim 4, wherein the coating layer is cooled to a solid at room temperature.
JP2006127785A 2005-05-05 2006-05-01 Heat-radiator device having low-melting metal alloy-coated layer and method of fabricating the same Pending JP2006324657A (en)

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