JPH02154989A - Heat pipe type radiator - Google Patents
Heat pipe type radiatorInfo
- Publication number
- JPH02154989A JPH02154989A JP30725488A JP30725488A JPH02154989A JP H02154989 A JPH02154989 A JP H02154989A JP 30725488 A JP30725488 A JP 30725488A JP 30725488 A JP30725488 A JP 30725488A JP H02154989 A JPH02154989 A JP H02154989A
- Authority
- JP
- Japan
- Prior art keywords
- recessed holes
- block
- holes
- recessed
- working fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001704 evaporation Methods 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims description 35
- 238000004891 communication Methods 0.000 claims description 20
- 229910052802 copper Inorganic materials 0.000 abstract description 15
- 239000010949 copper Substances 0.000 abstract description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 14
- 239000007788 liquid Substances 0.000 abstract description 9
- 238000007789 sealing Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000012546 transfer Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000008020 evaporation Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 235000002597 Solanum melongena Nutrition 0.000 description 1
- 244000061458 Solanum melongena Species 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910000833 kovar Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、半導体素子や電子機器等の冷却に用いるヒー
トパイプ式放熱器に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a heat pipe type radiator used for cooling semiconductor devices, electronic equipment, etc.
半導体素子や電子機器の発熱部の冷却には、ヒートパイ
プ式放熱器が用いられている。このヒートパイプ・式放
熱器は、第４図に示すように円筒状のバイブ１４内部に
気液２相となる作動液９を真空封入し一端を蒸発部５、
他端を凝縮部８とした複数本のヒートパイプ１３を、ヒ
ートパイプ１３の蒸発部５を熱の集合もしくは分散を容
易にする為に銅等の熱伝導特性の良好なブロックｌに設
けた複数の凹穴１２にそれぞれ挿入し、この凹穴１２内
面とヒートパイプ１３外周面との間に半田層１５を設け
て接合し、更にそれぞれのヒートバイブ１３の凝縮部８
に多数のフィン７を設けて放熱性を高めたものである。Heat pipe type radiators are used to cool the heat generating parts of semiconductor devices and electronic devices. As shown in FIG. 4, this heat pipe type radiator has a cylindrical vibrator 14 in which a working liquid 9 in two phases, gas and liquid, is vacuum sealed, and one end is connected to an evaporator 5,
A plurality of heat pipes 13 each having a condensing part 8 at the other end are installed in a block l made of copper or other material having good heat conduction properties in order to facilitate the collection or dispersion of heat. A solder layer 15 is provided between the inner surface of the recessed hole 12 and the outer circumferential surface of the heat pipe 13 for bonding.
A large number of fins 7 are provided to improve heat dissipation.
このようなヒートパイプ式放熱器は、上記ブロック１に
被冷却体であるサイリスク等を密接させることによりそ
の熱を効率よく奪っていくものである。Such a heat pipe type radiator efficiently removes heat by bringing the object to be cooled, such as a silice, into close contact with the block 1.
上記のような従来のヒートパイプ式放熱器は、ブロック
から作動液への熱伝達が半田層及びパイブを介してなさ
れたるため熱伝達効率が低いものであった。又ヒートパ
イプには通常一定量の作動液が封入されており、この為
従来の放熱器では、被冷却体に近い位置にあるヒートパ
イプは、作動液が多量に蒸発して不足するような状態と
なる為、放熱器全体として高い熱効率が得られないとい
う問題があった。The conventional heat pipe type radiator as described above has low heat transfer efficiency because heat is transferred from the block to the working fluid through the solder layer and the pipe. In addition, heat pipes usually contain a certain amount of working fluid, so in conventional radiators, heat pipes located close to the object to be cooled are in a state where a large amount of working fluid evaporates and runs out. Therefore, there was a problem that high thermal efficiency could not be obtained as a whole of the radiator.
更に、作動液はヒートパイプ１本ごとに真空封入する為
に製造に手間を要するものであった。Furthermore, since the working fluid is vacuum-sealed for each heat pipe, manufacturing is time-consuming.
本発明は、かかる状況に鑑みなされたもので、その目的
とするところは、特性に優れ且つ製造が容易なヒートパ
イプ式放熱器を提供することにある。The present invention was made in view of the above situation, and its purpose is to provide a heat pipe type radiator that has excellent characteristics and is easy to manufacture.
即ち本発明は、高熱伝導性ブロックに複数の凹穴を設け
、該凹穴のそれぞれの開口端に、一端を封じた管体又は
／及び一端に内部と連通ずるノズルを形成した管体の各
々の開放端を接続して容器を形成し、該容器に作動液を
封入して上記凹穴を作動液の蒸発部となし、又管体を作
動液の凝縮部となしたヒートパイプ式放熱器であって、
上記高熱伝導性ブロックに設けられた複数の凹穴が連通
孔により相互に連通していることを特徴とするものであ
る。That is, the present invention provides a highly thermally conductive block with a plurality of recessed holes, and each of the recessed holes has a tube body with one end sealed at the open end thereof, and/or a tube body with a nozzle formed at one end communicating with the inside. A heat pipe type radiator in which a container is formed by connecting the open ends of the container, a working fluid is sealed in the container, the recessed hole is used as an evaporation part for the working fluid, and the pipe body is used as a condensing part for the working fluid. And,
It is characterized in that the plurality of recessed holes provided in the high thermal conductivity block are in communication with each other through communication holes.
以下に本発明の構成を具体的に示すと、例えば第１図に
示すように銅等の熱伝導性の高いブロックｌに複数の凹
穴２を設け、この各々の凹穴２を凹穴２の下部に設けた
連通孔３により連通し、父上記凹穴２の開放端に一端を
封じた複数の管体６の開放端をそれぞれ接続して管体６
と凹穴２からなる容器を形成し、この容器内に作動液９
を作動液面が連通孔３より上方になる量真空封入したも
ので、上記凹穴２が穿設されたブロック１を蒸発部５、
上記管体６を、これに多数のフィン７を設けて凝縮部８
となしたものである。The structure of the present invention will be specifically shown below. For example, as shown in FIG. A plurality of tube bodies 6 are connected to each other through a communication hole 3 provided at the lower part thereof, and the open ends of a plurality of tube bodies 6 each having one end sealed are connected to the open end of the concave hole 2 above.
and a recessed hole 2, and a hydraulic fluid 9 is placed in this container.
is vacuum-sealed in an amount such that the working fluid level is above the communication hole 3, and the block 1 in which the recessed hole 2 is bored is connected to the evaporation section 5,
The tube body 6 is provided with a large number of fins 7 to form a condensing section 8.
This is what was done.
本発明において、ブロックの材料には、主に銅又は銅合
金等の高熱伝導性材料が用いられる。上記ブロックに設
けられる凹穴の径は、上記凹穴の開放端に接続される管
体の内径と同じ径にするのが、作動液の還流がスムーズ
になされ好ましい。In the present invention, a highly thermally conductive material such as copper or a copper alloy is mainly used as the material of the block. Preferably, the diameter of the recessed hole provided in the block is the same as the inner diameter of the tube connected to the open end of the recessed hole, so that the working fluid can be smoothly returned.
上記凹穴の開放端と管体の開放端との接続は、ろう接又
は溶接により行われる。ブロックに設けられた複数の凹
穴を相互に連通ずる連通穴は、ブロック側面の所定箇所
から例えばドリルにより穿孔して設けられる。The open end of the recessed hole and the open end of the tube are connected by brazing or welding. A communication hole that communicates with a plurality of recessed holes provided in the block is provided by drilling, for example, with a drill from a predetermined location on the side surface of the block.
上記連通孔のブロック開放端は、これにパイプを接続し
、このパイプを通して作動液を凹穴に真空封入するのに
用いることができる。The block open end of the communication hole can be used to connect a pipe to vacuum-seal the working fluid into the recessed hole through the pipe.
〔作用］
ブロックに四穴を設け、この上に一端開放の管体の開放
端を接続して容器を形成し、この容器の凹穴に作動液を
封入してこの凹穴を蒸発部となすので、ブロックの熱は
作動液に直接伝達され熱効率が向上する。[Function] Four holes are provided in the block, and the open end of the pipe body with one end open is connected to the block to form a container, and the recessed hole of this container is filled with hydraulic fluid, and this recessed hole serves as an evaporation section. Therefore, the heat of the block is directly transferred to the working fluid, improving thermal efficiency.
又ブロックに設けられた複数の凹穴は、連通しているの
で、被冷却体に近い位置の蒸発量の多い容器には、他の
容器から連通孔を通して作動液が補給され放熱器全体の
熱効率が向上する。この作用効果は、作動液面を連通孔
より上方に設定した場合において最も発揮されるもので
ある。In addition, since the plurality of concave holes provided in the block are in communication with each other, a container with a large amount of evaporation near the object to be cooled is replenished with working fluid from another container through the communication hole, thereby improving the thermal efficiency of the entire radiator. will improve. This effect is best exhibited when the hydraulic fluid level is set above the communication hole.
更にブロックに設けられた複数の凹穴は、連通孔により
相互に連通しているので、作動液は連通孔の開放端、又
は複数の管体のいずれか１本の管体のノズルから一度に
真空封入することができる。Furthermore, since the plurality of recessed holes provided in the block are in communication with each other through the communication hole, the hydraulic fluid is supplied at once from the open end of the communication hole or the nozzle of any one of the plurality of tubes. Can be vacuum sealed.
以下に本発明を実施例により具体的に説明する。 The present invention will be specifically explained below using examples.
実施例１
第１図に示すように中１００ｍｍ、高さ１００Ｍ、厚さ
２５ｍｍの銅ブロック１に直径１５鵬深さ９０鵬の凹穴
２を３個穿設し、この各々の凹穴２を四穴２下部におい
て直径４＋ａｍの連通孔３を穿設して相互に連通し、上
記連通孔３の銅ブロツクｌ側壁の開放端に内径４ａ＊、
外径６ＩＩＩＩｍの銅製パイプ４を接続して、この銅ブ
ロック１を蒸発部５とした。Example 1 As shown in Fig. 1, three recessed holes 2 with a diameter of 15 mm and a depth of 90 mm were bored in a copper block 1 with a diameter of 100 mm, a height of 100 m, and a thickness of 25 mm. A communication hole 3 with a diameter of 4+am is bored in the lower part of the four holes 2 to communicate with each other, and an inner diameter of 4a* is formed at the open end of the side wall of the copper block l of the communication hole 3.
A copper pipe 4 having an outer diameter of 6IIIm was connected to make this copper block 1 an evaporation section 5.
一方向径１５鱗、外径１７ｍ、長さ２５０ｍの一端を封
じた３本の銅管６にフィン７を多数段は凝縮部８とした
。A condensing section 8 was formed by having multiple stages of fins 7 mounted on three copper tubes 6 each having a diameter of 15 in one direction, an outer diameter of 17 m, and a length of 250 m with one end sealed.
この３本の銅管６の開放端を前記銅ブロックｌに設けた
３個の四穴２の開放端にそれぞれ銀ろうによりろう付け
して接続Ｌ７、この接続された鋼管６と凹穴２のなす容
器内へ作動液９を真空封入しヒートパイプ放熱器となし
た０作動液９の封入は次の手順により行った。即ち、銅
ブロック１の側壁に設けられたパイプ４に図示しない３
叉バイブの第１分岐をとりつけ、上記３叉パイプの第２
分岐に真空ポンプをつないで内部を脱気し、次いで第３
分岐から作動液を所定量注入し、しかるのちパイプ端部
を封じ切って行った。The open ends of these three copper pipes 6 are each connected to the open ends of the three four holes 2 provided in the copper block l by silver soldering L7, and the connected steel pipes 6 and the recessed holes 2 are connected L7. The working fluid 9 was vacuum-sealed into an eggplant container to form a heat pipe radiator.The working fluid 9 was sealed in the following procedure. That is, a pipe 4 (not shown) provided on the side wall of the copper block 1
Attach the first branch of the vibrator and connect it to the second branch of the three-pronged pipe.
Connect a vacuum pump to the branch to evacuate the interior, and then
A predetermined amount of working fluid was injected from the branch, and then the end of the pipe was sealed off.
上記において作動液９には水を用い、作動液９の注入量
は、作動液９の液面が連通孔３より上方になるように秤
量し注入した。In the above, water was used as the hydraulic fluid 9, and the amount of the hydraulic fluid 9 injected was measured and injected so that the liquid level of the hydraulic fluid 9 was above the communication hole 3.
このヒートパイプ式放熱器の銅ブロツク表面に放熱量的
５００ｗのサイリスクを１個取付けて試験を行った結果
、従来の同寸法の放熱器よりも放熱量が５％程度増加し
熱特性が向上した。A test was conducted by attaching a single 500W heat sink to the surface of the copper block of this heat pipe type heat radiator, and the results showed that the heat radiation was increased by about 5% compared to a conventional heat radiator of the same size, and the thermal characteristics were improved. .
このように熱特性が向上した原因は、ブロックに凹穴を
あけ、この凹穴に直に作動液を入れた為、蒸発部の熱伝
達効率が向上したことと、凹穴同士を作動液面下で相互
に連通させた為、作動液がより高温となる凹穴に効果的
に配分された為である。The reason for this improvement in thermal characteristics is that the heat transfer efficiency of the evaporator section has improved because a recessed hole was made in the block and the working fluid was poured directly into this recessed hole, and that the working fluid level between the recessed holes was improved. This is because the working fluid was effectively distributed to the recessed holes where the temperature was higher because they were made to communicate with each other at the bottom.
又上記ヒートバイブ式放熱器は、作動液の真空封入をブ
ロック側壁に設けたパイプの１箇所だけから行えばよい
ので、従来３本の鋼管の各々について行っていたのに較
べて手間が大幅に削減された。In addition, with the above-mentioned heat-vib type radiator, the vacuum sealing of the working fluid only needs to be done from one point on the pipe installed on the side wall of the block, which is much more time-consuming compared to the conventional method of filling each of the three steel pipes. reduced.
実施例２
第２図は、本発明の放熱器の第２の実施例を示す縦断面
説明図である。このヒートバイブ式放熱器は３本の銅管
６，１６のうちの１本の銅管１６の一端にノズル１０を
形成し、又連通孔３の開放端をブロック１内で封止した
他は実施例１と同じ構造の放熱器である。Embodiment 2 FIG. 2 is an explanatory longitudinal cross-sectional view showing a second embodiment of the radiator of the present invention. This heat vibrator radiator has a nozzle 10 formed at one end of one of the three copper tubes 6 and 16, and the open end of the communication hole 3 is sealed within the block 1. This is a heat sink having the same structure as in Example 1.
この放熱器の作動液の封入は、管体１６のノズル１０に
三叉パイプをとりつけ、実施例１と同じ方法により脱気
及び作動液の注入を行い、しかるのちノズル端部を封じ
切って行われる。The sealing of the working fluid in this radiator is carried out by attaching a three-pronged pipe to the nozzle 10 of the tubular body 16, degassing and injecting the working fluid in the same manner as in Example 1, and then sealing off the end of the nozzle. .
実施例３
第３図は本発明放熱器の第３の実施例を示す縦断面説明
図である。この放熱器は、銅ブロックｌの凹穴２の開放
端と銅管６の開放端とを電気絶縁性パイプ１１を介して
接続し、作動液９に電気絶縁性のフロンＲ１１３を用い
た他は実軸例１と同じものである。Embodiment 3 FIG. 3 is an explanatory longitudinal cross-sectional view showing a third embodiment of the radiator of the present invention. This radiator has the following features: the open end of the recessed hole 2 of the copper block l and the open end of the copper tube 6 are connected via an electrically insulating pipe 11, and the working fluid 9 is made of electrically insulating Freon R113. This is the same as the real axis example 1.
この放熱器は、電位をもつ部分にとりつけても放熱部へ
の通電が遮断されるので、安全性が要求される鉄道車輌
用サイリスタ等に適用して特に効果を発揮するものであ
る。This heat radiator is particularly effective when applied to thyristors for railway vehicles, etc., where safety is required, since electricity to the heat radiating part is cut off even if it is attached to a part with potential.
上記において電気絶縁性パイプの材料には、アルミナ、
マグネシャ、ガラス等が用いられ、又このパイプの接続
には、コバール等の封着金属が適用される。In the above, the electrically insulating pipe material includes alumina,
Magnesium, glass, etc. are used, and a sealing metal such as Kovar is applied to the connection of this pipe.
以上、作動液面を連通孔より上方に設定した場合につい
て説明したが、下方に設定した場合においても、同様の
効果が得られる。Although the case where the hydraulic fluid level is set above the communication hole has been described above, the same effect can be obtained even when it is set below.
（効果］
以上述べたように、本発明のパイプ式放熱器は、熱特性
に優れ且つ製造が容易であり、工業上顕著な効果を奏す
るものである。(Effects) As described above, the pipe-type heat radiator of the present invention has excellent thermal characteristics, is easy to manufacture, and has remarkable industrial effects.
第１図乃至第３図は、本発明の放熱器の実施例を示すそ
れぞれ縦断面説明図、第４図は従来の放熱器の縦断面説
明図である。
フィン、
８・・・凝縮部、
９・・・作動液、
１０・・・
ノズル。1 to 3 are longitudinal cross-sectional explanatory views showing embodiments of the heat radiator of the present invention, and FIG. 4 is a longitudinal cross-sectional explanatory view of a conventional heat radiator. Fin, 8... Condensing part, 9... Working fluid, 10... Nozzle.
Claims (2)
のそれぞれの開口端に、一端を封じた管体又は／及び一
端に内部と連通するノズルを形成した管体の各々の開放
端を接続して容器を形成し、該容器に作動液を封入して
上記凹穴を作動液の蒸発部となし、又管体を作動液の凝
縮部となしたヒートパイプ式放熱器であって、上記高熱
伝導性ブロックに設けられた複数の凹穴が連通孔により
相互に連通していることを特徴とするヒートパイプ式放
熱器。(1) A plurality of recessed holes are provided in a highly thermally conductive block, and each open end of each of the recessed holes is a tube body with one end sealed or/and a tube body with a nozzle formed at one end communicating with the inside. A heat pipe type radiator in which the ends are connected to form a container, a working fluid is sealed in the container, the recessed hole is used as an evaporating part for the working fluid, and the tube body is used as a condensing part for the working fluid. A heat pipe type radiator characterized in that a plurality of recessed holes provided in the high thermal conductivity block are in communication with each other through communication holes.
置が作動液面より下方にあることを特徴とする請求項１
記載のヒートパイプ式放熱器。(2) Claim 1 of the above heat pipe type radiator, characterized in that the communication hole is located below the level of the working fluid.
The heat pipe type radiator described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30725488A JP2610041B2 (en) | 1988-12-05 | 1988-12-05 | Heat pipe radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30725488A JP2610041B2 (en) | 1988-12-05 | 1988-12-05 | Heat pipe radiator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02154989A true JPH02154989A (en) | 1990-06-14 |
| JP2610041B2 JP2610041B2 (en) | 1997-05-14 |
Family
ID=17966890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30725488A Expired - Lifetime JP2610041B2 (en) | 1988-12-05 | 1988-12-05 | Heat pipe radiator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2610041B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0753713A3 (en) * | 1995-07-14 | 1997-11-26 | Actronics Kabushiki Kaisha | Method of manufacturing tunnel-plate type heat pipes |
| KR100468278B1 (en) * | 1999-09-16 | 2005-01-27 | 현대중공업 주식회사 | Heat pipe heat sink with conduction block |
| CN102803871A (en) * | 2009-06-12 | 2012-11-28 | 陈玪洙 | Liquid receiver combined with liquid separator for refrigeration cycle and manufacturing method thereof |
| CN103267437A (en) * | 2013-06-10 | 2013-08-28 | 天津市布加迪环保科技发展有限公司 | Double-finned heat pipe cooling device |
| CN104567495A (en) * | 2013-10-09 | 2015-04-29 | 程长青 | Vacuum heat conducting and heat radiating device |
| JP2020085426A (en) * | 2018-11-30 | 2020-06-04 | 古河電気工業株式会社 | Heat sink |
| US10677535B1 (en) | 2018-11-30 | 2020-06-09 | Furukawa Electric Co., Ltd. | Heat sink |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009088135A1 (en) * | 2008-01-07 | 2009-07-16 | Sangcheol Lee | Heat dissipating device using heat pipe |
-
1988
- 1988-12-05 JP JP30725488A patent/JP2610041B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0753713A3 (en) * | 1995-07-14 | 1997-11-26 | Actronics Kabushiki Kaisha | Method of manufacturing tunnel-plate type heat pipes |
| KR100468278B1 (en) * | 1999-09-16 | 2005-01-27 | 현대중공업 주식회사 | Heat pipe heat sink with conduction block |
| CN102803871A (en) * | 2009-06-12 | 2012-11-28 | 陈玪洙 | Liquid receiver combined with liquid separator for refrigeration cycle and manufacturing method thereof |
| CN103267437A (en) * | 2013-06-10 | 2013-08-28 | 天津市布加迪环保科技发展有限公司 | Double-finned heat pipe cooling device |
| CN104567495A (en) * | 2013-10-09 | 2015-04-29 | 程长青 | Vacuum heat conducting and heat radiating device |
| JP2020085426A (en) * | 2018-11-30 | 2020-06-04 | 古河電気工業株式会社 | Heat sink |
| US10677535B1 (en) | 2018-11-30 | 2020-06-09 | Furukawa Electric Co., Ltd. | Heat sink |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2610041B2 (en) | 1997-05-14 |
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