JP2006222254A - Electronic apparatus - Google Patents

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JP2006222254A
JP2006222254A JP2005034030A JP2005034030A JP2006222254A JP 2006222254 A JP2006222254 A JP 2006222254A JP 2005034030 A JP2005034030 A JP 2005034030A JP 2005034030 A JP2005034030 A JP 2005034030A JP 2006222254 A JP2006222254 A JP 2006222254A
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housing
heat
casing
air
notebook
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JP4496978B2 (en
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Masahiko Hirata
雅彦 平田
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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  • Cooling Or The Like Of Electrical Apparatus (AREA)
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic apparatus, having cooling devices that cope with improvement in its heat radiation effect. <P>SOLUTION: The electronic apparatus has a first housing 2 for mounting thereon a substrate, having mounted heat generating bodies and mounting thereon, such an operational portion as a key board, and has a second housing 10 for mounting thereon a display and is so rotated supportively in the end portion of the first housing 2 as to open/close within a predetermined angular scope. Air blasting of a fan device 7 disposed at the predetermined position of the first housing 2 is used for radiating heat via two different paths, comprising a heat sink 6 and a heat-radiating plate 11 which are respectively first and second heat radiating portions and are connected thermally with the heat-radiating bodies. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、電子機器の筐体の内部に実装された中央処理装置(以下、CPUと称する)、チップセット、表示コントローラ、又はHDDなどの様々な発熱体の強制冷却を目的として液体冷媒の循環を強制的に行い放熱する液冷却装置、又はファンの送風により強制的に放熱するファン装置などを複合又は併用した冷却装置を備えたノート型パーソナルコンピュータ(以下、ノートPCと称する)などの電子機器に関するものである。   The present invention circulates a liquid refrigerant for the purpose of forcibly cooling various heat generating elements such as a central processing unit (hereinafter referred to as CPU), a chip set, a display controller, or an HDD mounted in a casing of an electronic device. Electronic devices such as notebook personal computers (hereinafter referred to as notebook PCs) equipped with a liquid cooling device that forcibly releases heat and dissipates heat, or a cooling device that combines or uses a fan device that forcibly releases heat by blowing air from a fan It is about.

最近のコンピュータにおけるデータ処理の高速化の動きはきわめて急速であり、CPUのクロック周波数は以前と比較して格段に大きなものになってきている。その結果、CPUの発熱量が増大し、従来のように放熱部として複数個の放熱フィンから構成されたヒートシンクを発熱体に接触させて放熱する方法だけでなく、そのヒートシンクをファン装置で送風冷却する方法、受熱部からヒートパイプを用いて放熱部に熱接続したヒートシンクモジュールにおいてその放熱部をファン装置により送風冷却する方法、あるいは、液体冷媒をポンプにより強制的に液循環させ受熱部から放熱部へ熱輸送を行ないそれぞれにおいて熱交換をさせる液冷却方式による液冷却装置などが必要不可欠になっており、今後さらにその冷却能力の向上と併せて小型軽量化も必要とされている。   Recently, the speed of data processing in computers has been very rapid, and the clock frequency of the CPU has become much larger than before. As a result, the amount of heat generated by the CPU is increased, and not only the conventional method of dissipating heat by contacting a heat sink composed of a plurality of heat dissipating fins as a heat dissipating part to the heat generating element, but also cooling the fan with a fan device. A heat sink module that is thermally connected to the heat radiating part using a heat pipe from the heat receiving part, or a method in which the heat radiating part is blown and cooled by a fan device, or a liquid refrigerant is forced to circulate by a pump and the heat radiating part from the heat receiving part. A liquid cooling system using a liquid cooling system that transports heat to each other and exchanges heat is indispensable, and in the future, it is necessary to reduce the size and weight together with the improvement of the cooling capacity.

さらに、CPU以外でもノートPCの表示装置の高性能化やメモリアクセス性能の向上のためのクロック周波数アップに伴いチップセット、表示コントローラ、又はHDDなどの様々な電子部品などの発熱体についても、冷却の必要性が高まっている。   Furthermore, in addition to the CPU, the heat generation elements such as chip sets, display controllers, and various electronic parts such as HDDs are also cooled as the clock frequency increases to improve the performance of notebook PC display devices and memory access performance. The need for is increasing.

そこで、筐体の内部に実装された発熱体から発生する熱の放熱を行う冷却装置を備えたノートPCとしては、例えば(特許文献1)のように、液冷却装置による第二筐体の表面での自然放熱と併せてその液冷却装置の受熱部にヒートパイプの一方に端部を接続しその他方の端部に接続したヒートシンクまで熱輸送し、そのヒートシンクをファン装置の送風により放熱させるものが提案されている。   Therefore, as a notebook PC equipped with a cooling device that dissipates heat generated from a heating element mounted inside the housing, for example, as in (Patent Document 1), the surface of the second housing by a liquid cooling device. In addition to natural heat radiation at the heat sink, the heat receiving part of the liquid cooling device is connected to one end of the heat pipe and heat transported to the heat sink connected to the other end, and the heat sink dissipates heat by blowing air from the fan unit Has been proposed.

図8は、そのノートPC101の冷却装置の全体構成図で、発熱体を実装した基板とキーボードなど(図示せず)の操作部を搭載した第一筐体102の内部には、破線で示した発熱体103の上部に熱伝導性グリース(図示せず)を介して受熱部104が熱接続され、その受熱部104が第一の管路105と第二の管路106に接続され、さらにその第一の管路105が表示装置(図示せず)を搭載した第二筐体107内に配管され、液体冷媒を強制循環するポンプ108を経て放熱板109の冷媒入口110に接続されている。   FIG. 8 is an overall configuration diagram of the cooling device of the notebook PC 101. The inside of the first housing 102 on which the operation unit such as a board on which a heating element is mounted and a keyboard (not shown) is mounted is indicated by a broken line. The heat receiving portion 104 is thermally connected to the upper portion of the heating element 103 via a heat conductive grease (not shown), and the heat receiving portion 104 is connected to the first pipe line 105 and the second pipe line 106, and A first pipe 105 is piped in a second housing 107 on which a display device (not shown) is mounted, and is connected to a refrigerant inlet 110 of a heat radiating plate 109 through a pump 108 forcibly circulating a liquid refrigerant.

つまり、液体冷媒は受熱部104で受熱した後、放熱板109の内部の破線で示した冷媒流路111に送りこまれる。さらに、その蛇行状に屈曲した冷媒流路111の中を流れながら放熱板109との熱交換を行い、冷やされた後に冷媒出口112に接続した第二の管路106を通過して受熱部104に戻される。すなわち、液体冷媒が受熱部104から放熱板109の方向に熱輸送を行っている。そして、放熱板109の熱は第二筐体107に伝わり、その第二筐体107の表面から自然放熱される。   That is, the liquid refrigerant is received by the heat receiving unit 104 and then sent to the refrigerant flow path 111 indicated by a broken line inside the heat radiating plate 109. Furthermore, heat exchange with the heat radiating plate 109 is performed while flowing through the meandering refrigerant flow path 111, and after being cooled, the heat reception section 104 passes through the second pipe line 106 connected to the refrigerant outlet 112. Returned to That is, the liquid refrigerant transports heat from the heat receiving portion 104 toward the heat radiating plate 109. The heat of the heat radiating plate 109 is transmitted to the second housing 107 and is naturally radiated from the surface of the second housing 107.

一方、受熱部104の上面の嵌合溝104aにはヒートパイプ113の一方の端部113aが嵌め込まれ、そのヒートパイプ113の他方の端部113bにはその外周面に複数の放熱フィンを形成したヒートシンク114が接続されているので、受熱部104の熱の一部がヒートシンク114に伝熱され、そのヒートシンク114の方向にファン装置115を用いて送風し強制的な放熱も行っている。   On the other hand, one end 113a of the heat pipe 113 is fitted into the fitting groove 104a on the upper surface of the heat receiving portion 104, and a plurality of heat radiation fins are formed on the outer peripheral surface of the other end 113b of the heat pipe 113. Since the heat sink 114 is connected, part of the heat of the heat receiving unit 104 is transferred to the heat sink 114, and the fan device 115 is used to blow air in the direction of the heat sink 114 to forcibly dissipate heat.

ファン装置115は、金属製のファンケーシング116と遠心式の羽根車117とを備えており、吸込口118より吸気した空気をヒートシンク114に送風する構成となっている。   The fan device 115 includes a metal fan casing 116 and a centrifugal impeller 117, and is configured to blow air sucked from the suction port 118 to the heat sink 114.

したがって、このノートPC101の場合は、破線で示した発熱体103の強制冷却を目的として液体冷媒の循環を強制的に行い放熱する液冷却装置とファン装置115の送風により強制的に放熱するファン装置を併用することにより効率的な冷却を行っている。   Therefore, in the case of this notebook PC 101, a liquid cooling device that forcibly circulates the liquid refrigerant and radiates heat for the purpose of forcibly cooling the heating element 103 indicated by a broken line, and a fan device that forcibly radiates heat by the fan device 115. Efficient cooling is performed by using together.

また、同様に筐体の内部に実装した発熱体の放熱を行う冷却装置を備えた他のノートPCとしては、例えば(特許文献2)のように、発熱体と熱接続した金属パイプを経由させて、表示部の裏面に蛇行的に配置された放熱板の方向に液体冷媒を循環することにより発熱体より受熱した熱をその放熱板で自然放熱させるのに加え、ファン装置により強制的に風を当てることによりさらに効率的に放熱したものも提案されている。   Similarly, as another notebook PC equipped with a cooling device that dissipates heat from a heating element mounted inside the housing, for example, as in (Patent Document 2), a metal pipe that is thermally connected to the heating element is used. In addition to radiating liquid refrigerant in the direction of the radiator plate meandering on the back surface of the display unit, the heat received from the heating element is naturally radiated by the radiator plate, and the fan device forcibly reduces the air flow. There has also been proposed one that dissipates heat more efficiently by hitting.

図9は、そのノートPCの冷却装置の全体概略図で、図示しない基板とキーボードなどの操作部を搭載した第一筐体201の内部には発熱体202が実装され、その発熱体202には金属パイプ203が熱接続されており、発熱体202との熱交換により受熱した液体冷媒204は、金属パイプ203を経由して表示装置の搭載された第二筐体205の裏面に実装されている放熱板206にて熱交換を行い、自然放熱により冷却される。   FIG. 9 is an overall schematic view of the cooling device for the notebook PC. A heating element 202 is mounted inside a first casing 201 on which an operation unit such as a board and a keyboard (not shown) is mounted. The metal pipe 203 is thermally connected, and the liquid refrigerant 204 received by heat exchange with the heating element 202 is mounted on the back surface of the second casing 205 on which the display device is mounted via the metal pipe 203. Heat is exchanged by the heat radiating plate 206 and is cooled by natural heat radiation.

その後、冷やされた液体冷媒は第一筐体201に戻り再び発熱体202と熱交換により再度受熱するという動作を繰り返している。また、この自然放熱する放熱板206に対して第一筐体201の突出した背面部に収容されたファン装置207を用いて背面部の上面に設けた通風孔208を通過させて放熱板206の方向に送風し強制的に風を当てることにより、液体冷媒204を効率良く熱交換させることができる。
特開2004−87841号公報(第12頁、図2) 特開2004−302726号公報(第5頁、図1)
Thereafter, the cooled liquid refrigerant returns to the first casing 201 and repeats the operation of receiving heat again by heat exchange with the heating element 202. Further, the heat radiating plate 206 that naturally radiates heat is passed through a ventilation hole 208 provided on the upper surface of the back surface portion by using a fan device 207 housed in the protruding back surface portion of the first housing 201. The liquid refrigerant 204 can be efficiently heat-exchanged by blowing air in the direction and forcibly applying the air.
Japanese Patent Laying-Open No. 2004-87841 (page 12, FIG. 2) JP 2004-302726 A (5th page, FIG. 1)

しかしながら、従来の(特許文献1)記載の冷却装置を備えたノートPCでは、第二筐体の表面からの放熱は自然放熱であるので、発熱体と熱接続したヒートシンクをファン装置により強制冷却する効果を含めても放熱効果を効率的に向上することが困難であるという課題があった。   However, in the conventional notebook PC provided with the cooling device described in (Patent Document 1), the heat radiation from the surface of the second housing is natural heat radiation, so the heat sink thermally connected to the heating element is forcibly cooled by the fan device. Even if the effect is included, there is a problem that it is difficult to efficiently improve the heat dissipation effect.

また、従来の(特許文献2)記載の冷却装置を備えたノートPCにおいても、第二筐体の表面の自然放熱に加え、その第二筐体の一部を第一筐体の背面部に収容したファン装置により強制冷却する効果を含めてもやはり放熱効果を効率的に向上することが困難であるばかりでなく、第一筐体の背面部を突出させるので第二筐体より大きくする必要があり、第二筐体を連動させる場合にもヒンジ構造が複雑となるなど小型軽量化にも適さないという課題があった。   In addition, in a conventional notebook PC equipped with a cooling device described in (Patent Document 2), in addition to natural heat dissipation on the surface of the second housing, a part of the second housing is placed on the back surface of the first housing. Even including the effect of forced cooling by the housed fan device, it is not only difficult to efficiently improve the heat dissipation effect, but also the rear part of the first housing protrudes, so it must be larger than the second housing However, there is a problem that even when the second housing is interlocked, the hinge structure is complicated and is not suitable for reduction in size and weight.

本発明は、このような従来の課題を解決するものであり、簡素な構成でより効率的な放熱効果が得られ、小型軽量化を図ることを目的とする。   An object of the present invention is to solve such a conventional problem, and to achieve a more efficient heat dissipation effect with a simple configuration, and to reduce the size and weight.

上記目的を達成するために、本発明に係わる電子機器は、第一筐体と第二筐体とを開閉可能に連結し、この2つの筐体の少なくともいずれか一方に設けた放熱体と、2つの筐体の双方に設けた発熱体の熱を放熱する放熱部を備えた電子機器であって、第一筐体又は第二筐体のいずれか一方の筐体に配置したファン装置により第一筐体及び第二筐体の放熱部あるいはその放熱部と熱接続した筐体に送風し放熱するように構成したことを主要な特徴としている。   In order to achieve the above object, an electronic apparatus according to the present invention connects a first housing and a second housing so as to be openable and closable, and a radiator provided in at least one of the two housings; An electronic device including a heat radiating section that radiates heat from a heating element provided in both of two housings, and is provided by a fan device disposed in either the first housing or the second housing. The main feature is that it is configured to blow and radiate heat to the heat radiating portion of the one housing and the second housing or the housing thermally connected to the heat radiating portion.

本発明の冷却装置を備えた電子機器によれば、第一筐体と第二筐体とを開閉可能に連結し、この2つの筐体の少なくともいずれか一方に設けた放熱体と、2つの筐体の双方に設けた発熱体の熱を放熱する放熱部を備えた電子機器であって、第一筐体又は第二筐体のいずれか一方の筐体に配置したファン装置により第一筐体及び第二筐体の放熱部あるいはその放熱部と熱接続した筐体に送風し放熱するように構成したので、簡素な構成でより効率的な放熱効果が得られ、例えば、実装するCPU、チップセット、表示コントローラ、HDDなどの様々な電子部品の小型集積化や性能向上に伴う発熱量の増大にも容易に対応でき、結果としてその電子機器の性能を向上でき、小型軽量化にも対応が容易となる。   According to the electronic apparatus provided with the cooling device of the present invention, the first casing and the second casing are connected so as to be openable and closable, and the radiator provided in at least one of the two casings, An electronic apparatus including a heat radiating unit that dissipates heat from a heating element provided on both sides of a housing, wherein the first housing is provided by a fan device disposed in either the first housing or the second housing. The heat radiation part of the body and the second housing or the housing thermally connected to the heat radiation part is configured to blow and dissipate heat, so that a more efficient heat radiation effect can be obtained with a simple configuration. Easily responds to the increased integration of various electronic components such as chipsets, display controllers, HDDs, etc. and increases in the amount of heat generated as a result of improved performance. As a result, the performance of the electronic device can be improved, and the size and weight can be reduced. Becomes easy.

本発明の請求項1記載の発明は、第一筐体と第二筐体とを開閉可能に連結し、この2つの筐体の少なくともいずれか一方に設けた放熱体と、2つの筐体の双方に設けた発熱体の熱を放熱する放熱部を備えた電子機器であって、第一筐体又は第二筐体のいずれか一方の筐体に配置したファン装置により第一筐体及び第二筐体の放熱部あるいはその放熱部と熱接続した筐体に送風し放熱するように構成したことにより、第一筐体の放熱部を介した放熱と第二筐体の放熱部を介した放熱の2経路いずれの放熱に対しても同じファン装置の送風を用いているので、それぞれ強制的な放熱が可能となり、それら2経路の放熱効果を合わせた相乗効果により、簡素な構成でより効率的な放熱効果が得られ、小型軽量化にも対応が容易となる。   According to the first aspect of the present invention, the first housing and the second housing are connected so as to be openable and closable, and the heat dissipating body provided in at least one of the two housings, An electronic apparatus including a heat radiating unit that radiates heat from a heating element provided on both sides of the first casing and the second casing by a fan device disposed in either the first casing or the second casing. By radiating and radiating heat to the heat radiating part of the two cases or the case thermally connected to the heat radiating part, the heat radiating through the heat radiating part of the first case and the heat radiating part of the second case Since the same fan device blow is used for both heat dissipation paths, it is possible to forcibly dissipate each, and the synergistic effect that combines the heat dissipation effects of these two paths enables more efficient with a simple configuration. Heat dissipation effect can be obtained, and it becomes easy to cope with the reduction in size and weight.

本発明の請求項2記載の発明は、請求項1記載の発明に従属する発明で、第一筐体の放熱部を介した放熱経路と第二筐体の放熱部を介した放熱経路において、ファン装置の送風路を同一としたことにより、前述した請求項1記載の発明の効果に加え、第一筐体の放熱部を介した放熱経路の送風路と第二筐体の放熱部を介した放熱経路の送風路を同一の送風路で構成しているので、それぞれの送風路を別々に設けることが電子機器内のレイアウト設計上困難な場合にも対応ができ、より設計自由度を増すことができる。   The invention according to claim 2 of the present invention is an invention dependent on the invention according to claim 1, and in the heat dissipation path via the heat dissipation portion of the first casing and the heat dissipation path of the second casing, By making the air passage of the fan device the same, in addition to the effect of the invention of claim 1 described above, the air passage of the heat radiation path via the heat radiation portion of the first housing and the heat radiation portion of the second housing are provided. Since the air flow path of the heat dissipation path is composed of the same air flow path, it is possible to deal with cases where it is difficult to design each air flow path separately due to the layout design in the electronic device, and the degree of freedom in design is further increased. be able to.

本発明の請求項3記載の発明は、請求項1又は2記載の発明に従属する発明で、第一筐体の第二筐体を回動支持する側の側面に、第二筐体の開閉動作に連動した可動ファンダクトを設けたことにより、前述した請求項1又は2記載の発明の効果に加え、第一筐体の側面に設けた第二筐体の開閉動作に連動した可動ファンダクトがそのファン装置の送風方向を大きく変えてその方向を規制するので、様々な使用態様に応じて第一筐体に対する第二筐体の開き角度が変化しても第二筐体へ所定の風量の送風が可能となり、その放熱効果を維持できる。また、通風孔を確保するため第一筐体の背面部を突出させる構造や、第二筐体を連動させる場合の複雑なヒンジ構造を必要としない簡素な構成であるので、小型軽量化にも対応が容易となる。   The invention according to claim 3 of the present invention is an invention dependent on the invention according to claim 1 or 2, wherein the opening and closing of the second housing is provided on the side surface of the first housing on the side where the second housing is pivotally supported. By providing the movable fan duct linked to the operation, the movable fan duct linked to the opening / closing operation of the second casing provided on the side surface of the first casing in addition to the effect of the invention of claim 1 or 2 described above. However, even if the opening angle of the second housing with respect to the first housing changes according to various usage modes, the predetermined air volume to the second housing is changed. The air can be blown and the heat dissipation effect can be maintained. In addition, since it has a simple structure that does not require a structure that protrudes the back surface of the first housing in order to secure a ventilation hole or a complicated hinge structure when the second housing is interlocked, it can also be reduced in size and weight. Easy to handle.

本発明の請求項4記載の発明は、請求項3記載の発明に従属する発明で、可動ファンダクトの異なる2方向のそれぞれの面に1乃至複数個の通風孔を設けたことにより、前述した請求項3記載の発明の効果に加え、第一筐体に対する第二筐体の開き角度が略全開となる態様で使用した場合には、可動ファンダクトの第二筐体に近接する側の面に設けた1乃至複数個の通風孔の略全体が塞がれるが、もう一方の面に設けた1乃至複数個の通風孔を通過させて第二筐体へ所定の風量の送風を確保でき、その放熱効果を維持できる。   The invention according to claim 4 of the present invention is an invention subordinate to the invention according to claim 3, and is described above by providing one or a plurality of ventilation holes on each surface in two different directions of the movable fan duct. In addition to the effect of the invention of claim 3, when used in a mode in which the opening angle of the second housing with respect to the first housing is substantially fully open, the surface of the movable fan duct on the side close to the second housing 1 or a plurality of ventilation holes provided on the other side are blocked, but the ventilation of a predetermined air volume can be secured to the second housing by passing the one or more ventilation holes provided on the other surface. The heat dissipation effect can be maintained.

本発明の請求項5記載の発明は、請求項3記載の発明に従属する発明で、可動ファンダクトの内面に傾斜角度が相互に異なる複数個の送風面を形成し、第二筐体の第一筐体に対する開き角度に対応して送風面がファン装置の送風方向を規制したことにより、前述した請求項3記載の発明の効果に加え、第二筐体の第一筐体に対する開き角度が略90度から全開に近い態様で使用した場合を考慮して、それぞれの第二筐体の開き角度に対応して第二筐体の方向に所定の風量が確保できるので、より冷却効果を維持できる。   The invention according to claim 5 of the present invention is an invention dependent on the invention according to claim 3, wherein a plurality of air blowing surfaces having different inclination angles are formed on the inner surface of the movable fan duct, In addition to the effect of the invention according to claim 3, the opening angle of the second casing with respect to the first casing is increased by the air blowing surface regulating the blowing direction of the fan device corresponding to the opening angle with respect to the one casing. Considering the case where it is used in a mode close to fully open from about 90 degrees, a predetermined air volume can be secured in the direction of the second housing corresponding to the opening angle of each second housing, so the cooling effect is maintained more it can.

本発明の請求項6記載の発明は、請求項5記載の発明に従属する発明で、可動ファンダクトの内面に形成した送風面において、第二筐体の第一筐体に対する開き角度が所定の範囲内で第二筐体の表面と略平行となる送風面の通風幅を他の送風面の通風幅よりも大きくしたことにより、その電子機器に最適でかつ使用頻度が高い態様に対応して第二筐体の方向により大きな風量が確保でき、その使用態様での冷却効果をより高められる。   The invention according to claim 6 of the present invention is an invention dependent on the invention according to claim 5, and in the air blowing surface formed on the inner surface of the movable fan duct, the opening angle of the second housing with respect to the first housing is predetermined. By making the ventilation width of the ventilation surface substantially parallel to the surface of the second housing within the range larger than the ventilation width of the other ventilation surfaces, it corresponds to an aspect that is optimal for the electronic device and frequently used A large air volume can be secured in the direction of the second housing, and the cooling effect in the usage mode can be further enhanced.

本発明の請求項7記載の発明は、請求項1又は2記載の発明に従属する発明で、放熱部を設けたいずれかの筐体の表面又は内面に凹凸面を形成したことにより、ファン装置による送風がその放熱部を設けた筐体の表面又は内面に形成した凹凸面に沿って流れるのでその筐体の表面又は内面での空気流の拡散が低減し、加えてその筐体の放熱面の表面積を大きくでき、より放熱効果を高めることができる。   The invention according to claim 7 of the present invention is an invention dependent on the invention according to claim 1 or 2, wherein a fan device is formed by forming an uneven surface on the surface or inner surface of any housing provided with a heat radiating portion. The air flow by the air flows along the uneven surface formed on the surface or the inner surface of the casing provided with the heat radiating portion, so that the diffusion of the air flow on the surface or the inner surface of the casing is reduced, and in addition, the heat radiating surface of the casing The surface area can be increased, and the heat dissipation effect can be further enhanced.

本発明の実施例は、冷却装置を備えた電子機器として、発熱体の強制冷却を目的として液体冷媒の循環を強制的に行い放熱する液冷却装置とファン装置の送風により強制的に放熱するファン装置を併用したノートPCに関するもので、以下、図面を用いて説明する。   An embodiment of the present invention is an electronic device equipped with a cooling device, a liquid cooling device that forcibly circulates a liquid refrigerant for the purpose of forcibly cooling a heating element, and a fan that forcibly radiates heat by blowing air from a fan device. The present invention relates to a notebook PC using the apparatus together, and will be described below with reference to the drawings.

(実施例1)
図1〜図6において、図1は本発明の実施例1におけるノートPCの全体斜視図で、図2は本発明の実施例1におけるノートPCの平面図で、図3は本発明の実施例1におけるノートPCの側面図で、図4(a)〜(e)は本発明の実施例1におけるノートPCの第二筐体の開き角度と可動ファンダクトの連動の関係を示す図で、図5は本発明の実施例1におけるノートPCの可動ファンダクトの内面に形成した通風面の説明図で、図6は本発明の実施例1におけるノートPCの第二筐体の背面図とラインA−Aの断面拡大図である。
(Example 1)
1 to 6, FIG. 1 is an overall perspective view of a notebook PC according to Embodiment 1 of the present invention, FIG. 2 is a plan view of the notebook PC according to Embodiment 1 of the present invention, and FIG. 3 is an embodiment of the present invention. 4 (a) to 4 (e) are diagrams showing the relationship between the opening angle of the second housing of the notebook PC and the interlocking movement of the movable fan duct in Example 1 of the present invention. 5 is an explanatory view of the ventilation surface formed on the inner surface of the movable fan duct of the notebook PC according to the first embodiment of the present invention. FIG. 6 is a rear view of the second casing of the notebook PC according to the first embodiment of the present invention and the line A. It is a cross-sectional enlarged view of -A.

図1は、本発明の実施例1におけるノートPCの全体斜視図で、冷却装置を備えたノートPC1の第一筐体2に搭載したキーボード3の下には、図示はしないがCPUなどの発熱体を実装した基板が配置され、その発熱体の上に第一の受熱部4が熱伝導性グリース又は熱伝導シートを介在して置かれ、その第一の受熱部4の上部に接続したヒートパイプ5により第一の放熱部であるヒートシンク6と熱接続されて第一の放熱経路を形成している。   FIG. 1 is an overall perspective view of a notebook PC according to a first embodiment of the present invention. Below a keyboard 3 mounted on a first casing 2 of a notebook PC 1 provided with a cooling device, heat generated by a CPU or the like is not shown. A board on which a body is mounted is disposed, and a first heat receiving portion 4 is placed on the heating element with a heat conductive grease or a heat conductive sheet interposed therebetween, and is connected to an upper portion of the first heat receiving portion 4. The pipe 5 is thermally connected to the heat sink 6 as the first heat radiating portion to form a first heat radiating path.

そして、第一筐体2のコーナー部に配置したファン装置7が吸気孔7aより吸気した空気を遠心方向に送風してヒートシンク6を通過させ第一筐体2の一方の側面に設けられた複数個の通風孔2aから外部への方向(矢印Aの方向)に送風し強制的な放熱を行っている。   Then, a plurality of air-conditioners that are provided on one side surface of the first housing 2 through the heat sink 6 by blowing the air sucked from the air intake holes 7a by the fan device 7 disposed at the corner portion of the first housing 2 in the centrifugal direction. Forcible heat dissipation is performed by blowing air from the individual ventilation holes 2a to the outside (in the direction of arrow A).

ここで、第一の放熱部であるヒートシンク6は、その放熱性を高めるためアルミニウム合金や銅など良好な熱伝導性を有する金属製の複数個の放熱フィンを通風方向に略平行となるように連結配置しており、ファン装置7の送風により強制的に放熱している。   Here, the heat sink 6 that is the first heat radiating portion is arranged so that a plurality of metal heat radiating fins having good thermal conductivity such as aluminum alloy and copper are substantially parallel to the ventilation direction in order to enhance the heat radiating property. They are connected and forcibly dissipated heat by blowing air from the fan device 7.

つまり、発熱体に熱接続した第一の放熱部であるヒートシンク6を介した第一の放熱経路を形成している。   That is, a first heat radiation path is formed through the heat sink 6 which is a first heat radiation portion thermally connected to the heating element.

一方、第二の受熱部8は、第一の受熱部4と第一の放熱部であるヒートシンク6の中間に配置され、ヒートパイプ5が伝熱する熱の一部を受熱し、その熱を第二の受熱部8と接続した液体冷媒の循環路9を通じて、表示装置を搭載し第一筐体2の端部に回動支持され所定範囲内の角度で開閉する第二筐体10の内側に配置した第二の放熱部である放熱板11まで熱輸送する第二の放熱経路を形成している。   On the other hand, the second heat receiving portion 8 is arranged between the first heat receiving portion 4 and the heat sink 6 as the first heat radiating portion, receives a part of the heat transferred by the heat pipe 5, and receives the heat. Inside the second housing 10 mounted with a display device through the circulation path 9 of the liquid refrigerant connected to the second heat receiving portion 8 and pivotally supported by the end of the first housing 2 and opened and closed at an angle within a predetermined range. A second heat radiation path for heat transporting to the heat radiating plate 11 which is the second heat radiating portion arranged in the above is formed.

そして、第二の放熱部である放熱板11は、蛇行状に屈曲した液体冷媒の流路11aを内部に形成し、少なくともその放熱板11の一部が第二筐体10と熱接続しているので、第二筐体10にも放熱板11から伝熱し外部の空気中に自然放熱を行っている。   And the heat sink 11 which is a 2nd heat radiating part forms the flow path 11a of the liquid refrigerant | coolant bent in the meander shape inside, and at least one part of the heat sink 11 is thermally connected with the 2nd housing | casing 10. As a result, heat is transferred from the heat radiating plate 11 to the second housing 10 and naturally radiated into the outside air.

さらに、第二筐体10を回動支持する側の第一筐体2の側面、この場合第一筐体2の背面部には、第二筐体10の開閉動作に連動した可動ファンダクト12が設けられており、可動ファンダクト12の第二筐体10に近接する側の上面には複数個の通風孔12aが設けられ、その面とは異なる方向の背面にも通風孔12bが設けられている。   Furthermore, a movable fan duct 12 that is linked to the opening / closing operation of the second housing 10 is provided on the side surface of the first housing 2 on the side that supports the rotation of the second housing 10, in this case, the back surface of the first housing 2. A plurality of ventilation holes 12a are provided on the upper surface of the movable fan duct 12 on the side close to the second housing 10, and ventilation holes 12b are also provided on the back surface in a direction different from that surface. ing.

そして、ファン装置7の送風は、可動ファンダクト12によりその送風方向が大きく変えられ通風孔12aを通過して第二筐体10の方向(矢印Bの方向)に向けられ、第二の放熱部である放熱板11から伝熱した第二筐体10の表面をその送風により強制的に放熱している。   And the ventilation of the fan apparatus 7 is largely changed by the movable fan duct 12 and is directed to the direction of the second housing 10 (direction of arrow B) through the ventilation hole 12a, and the second heat radiating portion. The surface of the second housing 10 that has been transferred from the heat radiating plate 11 is forcibly radiated by the air blowing.

つまり、前述した自然放熱に加え、発熱体に熱接続した第二の放熱部である放熱板11を介した第二の放熱経路を形成している。   That is, in addition to the natural heat dissipation described above, a second heat dissipation path is formed via the heat dissipation plate 11 which is a second heat dissipation portion thermally connected to the heating element.

ただし、この場合において、第二筐体10の下部にメッシュやスリットなどの開口部(図示せず)を設け、ファン装置7の送風を通過させて第二筐体10の内側に配置した第二の放熱部である放熱板11の方向に空気を送ることにより放熱を行ってもよい。   However, in this case, an opening (not shown) such as a mesh or a slit is provided in the lower part of the second casing 10, and the second fan 10 is disposed inside the second casing 10 through the ventilation of the fan device 7. The heat radiation may be performed by sending air in the direction of the heat radiating plate 11 which is the heat radiating portion.

図2は、本発明の実施例1におけるノートPCの平面図であり、第一筐体2と第二筐体10に搭載している冷却装置の主要部分を実線で示した図で、以下、図1を補足して説明する。   FIG. 2 is a plan view of the notebook PC according to the first embodiment of the present invention, in which the main parts of the cooling device mounted on the first housing 2 and the second housing 10 are indicated by solid lines. FIG. 1 will be supplementarily described.

破線で示した発熱体13は、第一の受熱部4の下方に置かれ、その間には前述したように図示しない熱伝導性グリース又は熱伝導シートを介在させ、熱接触性を高めている。   The heating element 13 indicated by a broken line is placed below the first heat receiving portion 4 and, as described above, a thermal conductive grease or a thermal conductive sheet (not shown) is interposed therebetween to enhance the thermal contact property.

次に、発熱体13から第一の受熱部4が受熱した熱は、その第一の受熱部4の上部に接続されその内部に水、エチレングリコール、あるいは腐蝕防止剤などの混合液を充填したヒートパイプ5により伝熱され、さらに第一の放熱部であるヒートシンク6まで熱輸送されそこで放熱している。   Next, the heat received by the first heat receiving portion 4 from the heating element 13 is connected to the upper portion of the first heat receiving portion 4 and filled with a mixed liquid such as water, ethylene glycol, or a corrosion inhibitor. Heat is transferred by the heat pipe 5, and is further heat transported to the heat sink 6, which is the first heat radiating portion, and radiates heat there.

前述したように、第一の放熱経路は、第一の受熱部4、ヒートパイプ5、及びヒートシンク6で形成され、第二の放熱経路は、第二の受熱部8、液体冷媒の循環路9、放熱板11で形成されている。   As described above, the first heat radiation path is formed by the first heat receiving part 4, the heat pipe 5, and the heat sink 6, and the second heat radiation path is the second heat receiving part 8 and the circulation path 9 of the liquid refrigerant. The heat sink 11 is formed.

そして、ファン装置7は、それぞれの放熱経路の放熱部であるヒートシンク6を経由して外部の方向(矢印Aの方向)と可動ファンダクト12を経由して第二筐体10の方向(矢印Bの方向)の異なる2方向へ送風している。   Then, the fan device 7 passes through the heat sink 6 that is a heat radiating portion of each heat dissipation path to the outside direction (direction of arrow A) and the direction of the second housing 10 via the movable fan duct 12 (arrow B). The air is blown in two different directions.

図3は、本発明の実施例1におけるノートPCの側面図で、第二筐体10は、第一筐体2の端部に回動軸2bにより回動支持され、第一筐体2の側面に形成した円柱形の凸部2cと第二筐体10の側面に形成した円柱形の凸部10aは、案内板14の両端部に設けられた2個の摺動孔14a、14bにそれぞれ係合し、その案内板14の中間部に設けた摺動孔14cには可動ファンダクト12の側面に設けた円柱形の凸部12cが摺動可能に係合している。   FIG. 3 is a side view of the notebook PC according to the first embodiment of the present invention. The second housing 10 is pivotally supported on the end of the first housing 2 by the pivot shaft 2b. A cylindrical convex portion 2 c formed on the side surface and a cylindrical convex portion 10 a formed on the side surface of the second housing 10 are respectively provided in the two sliding holes 14 a and 14 b provided at both ends of the guide plate 14. The cylindrical convex portion 12 c provided on the side surface of the movable fan duct 12 is slidably engaged with the sliding hole 14 c provided in the intermediate portion of the guide plate 14.

また、可動ファンダクト12も、第一筐体2の側面に形成した円柱形の凸部2cの近傍に設けた円柱形の凸部12d(図示せず)を中心に回動して、第二筐体10の開き角度に応じた案内板14の動きに合わせて可動ファンダクト12の側面に設けた円柱形の凸部12cが案内板14の摺動孔14cで摺動しながら案内されるので所定の範囲で連動する構成となっている。   In addition, the movable fan duct 12 also rotates around a cylindrical convex portion 12d (not shown) provided in the vicinity of the cylindrical convex portion 2c formed on the side surface of the first housing 2, and the second The cylindrical convex portion 12c provided on the side surface of the movable fan duct 12 is guided while sliding in the sliding hole 14c of the guide plate 14 in accordance with the movement of the guide plate 14 according to the opening angle of the housing 10. It is configured to work within a predetermined range.

ファン装置7は、可動ファンダクト12に隣接する位置に配置され、通気孔7aから吸気した空気をファンダクト12の方向に送風できるようにしている。   The fan device 7 is disposed at a position adjacent to the movable fan duct 12 so that the air sucked from the air holes 7 a can be blown in the direction of the fan duct 12.

図4(a)〜(e)は、本発明の実施例1におけるノートPCの第二筐体10の開き角度と可動ファンダクト12の連動の関係を示す図で、図4(a)は第二筐体10の全閉状態図、(b)は第二筐体10の開き角度が略90度の状態図、(c)は第二筐体10の開き角度が略110度の状態図、(d)は第二筐体10の開き角度が略140度の状態図、(e)は第二筐体10の開き角度が略180度の状態図である。   4A to 4E are diagrams showing the relationship between the opening angle of the second casing 10 and the movable fan duct 12 of the notebook PC according to the first embodiment of the present invention. FIG. (B) is a state diagram in which the opening angle of the second housing 10 is approximately 90 degrees, (c) is a state diagram in which the opening angle of the second housing 10 is approximately 110 degrees, (D) is a state diagram in which the opening angle of the second housing 10 is approximately 140 degrees, and (e) is a state diagram in which the opening angle of the second housing 10 is approximately 180 degrees.

ここで、第二筐体10の開き角度に対応して案内板14が可動ファンダクト12を図4(a)〜(e)のそれぞれの図で示すように案内し、可動ファンダクト12の第二筐体10に近接する方の上面に設けられた通風孔12aが第二筐体10の方向に向けられ、それぞれ矢印で示した方向に所定の風量の送風が可能となり、第二筐体10の放熱効果がその開き角度の様々な使用態様に対応して維持できる。   Here, the guide plate 14 guides the movable fan duct 12 in accordance with the opening angle of the second housing 10 as shown in the respective drawings of FIGS. Ventilation holes 12a provided on the upper surface closer to the two housings 10 are directed toward the second housing 10, and a predetermined amount of air can be blown in the directions indicated by arrows, respectively. The heat dissipation effect can be maintained corresponding to various usage modes of the opening angle.

つまり、図4(b)に示した第二筐体の開き角度が略90度の場合、あるいは略90度以下の場合でも、第二筐体10の下部にメッシュやスリットなどの開口部(図示せず)を適宜設ければ、ファン装置7から送風され可動ファンダクト12により大きくその送風方向を変えられた空気がその開口部を通過して、放熱板11に送られ、同様に放熱効果を維持できる。つまり、ノートPCの様々な使用態様に対応して第二筐体10の開き角度が変化しても、放熱効果が維持できる。   That is, even when the opening angle of the second housing shown in FIG. 4B is approximately 90 degrees or approximately 90 degrees or less, an opening (such as a mesh or a slit) is formed in the lower portion of the second housing 10 (see FIG. If not provided), the air blown from the fan device 7 and greatly changed in the blowing direction by the movable fan duct 12 passes through the opening and is sent to the heat radiating plate 11, and similarly has a heat dissipation effect. Can be maintained. That is, even if the opening angle of the second housing 10 changes corresponding to various usage modes of the notebook PC, the heat dissipation effect can be maintained.

また、図4(e)に示したように、第二筐体10の開き角度が略全開となる態様で使用した場合には、可動ファンダクト12の第二筐体10に近接する側の上面に設けた1乃至複数個の通風孔12aの略全体が塞がれるが、もう一方の面に設けた1乃至複数個の通風孔12bを通過し第二筐体10への矢印で示した送風を確保できるのでその使用態様でも放熱効果を維持する。   Further, as shown in FIG. 4E, when the second housing 10 is used in a mode in which the opening angle is substantially fully open, the upper surface of the movable fan duct 12 on the side close to the second housing 10. 1 to a plurality of ventilation holes 12a provided in the entire surface are closed, but the air flows through one or more ventilation holes 12b provided on the other surface and indicated by an arrow to the second housing 10 Therefore, the heat dissipation effect is maintained even in the usage mode.

一方、図4(a)で示したように、第二筐体10の全閉状態では第一筐体2内に可動ファンダクト12の大部分が収容され、第二筐体10を回動支持する側の第一筐体2の背面部を突出させその上面部に通風孔を設ける必要もないので、背面部の突出スペースが不要となり、より第二筐体10の外形寸法を小さくでき電子機器全体を小型軽量化できる。   On the other hand, as shown in FIG. 4A, in the fully closed state of the second casing 10, most of the movable fan duct 12 is accommodated in the first casing 2, and the second casing 10 is rotatably supported. It is not necessary to project the back surface of the first housing 2 on the side to be opened and to provide a ventilation hole on the top surface thereof, so that no projecting space is required on the back surface, and the external dimensions of the second housing 10 can be further reduced. The whole can be reduced in size and weight.

さらに詳しく記述すると、通常ノートPCの操作時における第一筐体2に対する第二筐体10の開き角度は、そのノートPCを操作するオペレータの使用態様により大きく変わる。例えばノートPCの場合、それをオフィスデスク上での通常の使用状態であれば、第一筐体2に対し第二筐体10の開き角度は約100〜120度が最適とされている。   More specifically, the opening angle of the second casing 10 with respect to the first casing 2 during the operation of the normal notebook PC varies greatly depending on the usage mode of the operator who operates the notebook PC. For example, in the case of a notebook PC, if it is in a normal use state on an office desk, the opening angle of the second casing 10 with respect to the first casing 2 is optimally about 100 to 120 degrees.

しかし、全く異なる用途、例えば、自動搬送設備や各種生産設備などの制御用のシーケンスプログラムをテーチングなどする場合には、ノートPCをプログロマブルコントローラと長いケーブルを用いて接続し、そのままオペレータの足元の床面上に置かれほぼ真上からそのノートPCを操作することもよくあり、そのような使用状態であれば、第二筐体10の開き角度は、第一筐体2に対し120度を超えほぼ全開に近い180度近くで用いられることもよくある。   However, in completely different applications, for example, when teaching a control sequence program for automatic transfer equipment or various production equipment, the notebook PC is connected to the programmable controller using a long cable, and the operator's feet are used as it is. It is often the case that the notebook PC is operated almost directly from above, and in such a use state, the opening angle of the second housing 10 is 120 degrees with respect to the first housing 2. It is often used at nearly 180 degrees, which is almost fully open.

一方、プログラムのコンパイラ作業や未導入のプログラムなどをそのノートPCにインストールする場合などには、比較的長い時間に亘って第二筐体10の第一筐体2に対する開き角度を90度以下にしてキーボードに触れないようにして作業を継続する場合もあるので、それら様々な使用態様に対応して冷却効果を維持することが従来は困難であった。   On the other hand, when installing a compiler of a program or an unintroduced program on the notebook PC, the opening angle of the second casing 10 with respect to the first casing 2 is set to 90 degrees or less for a relatively long time. In some cases, it is difficult to maintain a cooling effect corresponding to these various usage modes.

つまり、第二筐体10の第一筐体2に対する開き角度の様々な使用態様に対応して冷却効果を維持することができる。   That is, the cooling effect can be maintained corresponding to various usage modes of the opening angle of the second housing 10 with respect to the first housing 2.

図5(a)〜(c)は、同一の可動ファンダクト12を異なる3方向からみた図で、通風孔12aを有する上面を省略して示しており、図5(a)は可動ファンダクト12の内面に形成した通風面を右側面上方からみた図で、(b)は可動ファンダクト12の内面に形成した通風面を左側面上方からみた図で、(c)は可動ファンダクト12を背面からみた図である。   FIGS. 5A to 5C are views of the same movable fan duct 12 as seen from three different directions, omitting the upper surface having the ventilation holes 12a, and FIG. The figure which looked at the ventilation surface formed in the inner surface of this from the upper right side, (b) is the figure which looked at the ventilation surface formed in the inner surface of the movable fan duct 12 from the upper left side, and (c) is the back of the movable fan duct 12 FIG.

ここで、第二筐体10の第一筐体2に対する開き角度が略垂直から全開に近い90〜180度の範囲で使用された場合、可動ファンダクト12の内面に形成した傾斜角度が相互に異なる3個の送風面12A、12B、12Cを形成しているので、いずれの開き角度においても所定の風量の送風を第二筐体10の方向に確保している。なお、可動ファンダクト12の側面には、円柱形の凸部12c、12dを、背面には、5個の通風孔12bを設けていることを示した。   Here, when the opening angle of the second casing 10 with respect to the first casing 2 is used in a range of 90 to 180 degrees that is substantially vertical to nearly fully open, the inclination angles formed on the inner surface of the movable fan duct 12 are mutually different. Since three different air blowing surfaces 12A, 12B, and 12C are formed, a predetermined amount of air is secured in the direction of the second housing 10 at any opening angle. In addition, it showed that the cylindrical convex parts 12c and 12d were provided in the side surface of the movable fan duct 12, and the five ventilation holes 12b were provided in the back surface.

つまり、送風面12Aは図3(b)で示した第二筐体10の開き角度において、送風面12Bは図3(c)で示した第二筐体10の開き角度において、送風面12Cは図3(d)で示した第二筐体10の開き角度において、それぞれ第二筐体10の方向へ所定の風量の送風が確保できるように設定してある。   That is, the blowing surface 12A is at the opening angle of the second housing 10 shown in FIG. 3B, the blowing surface 12B is at the opening angle of the second housing 10 shown in FIG. The opening angle of the second housing 10 shown in FIG. 3D is set such that a predetermined amount of air can be secured in the direction of the second housing 10.

したがって、第二筐体10が第一筐体2に対していずれの態様で使用されてもその放熱効果を維持できる。   Therefore, even if the second housing 10 is used in any manner with respect to the first housing 2, the heat dissipation effect can be maintained.

図6(a)は本発明の実施例1におけるノートPCの第二筐体10の背面図で、(b)はラインA−Aの断面拡大図で、可動ファンダクト12により上方向に大きく方向を変えられ送風される空気が第二筐体10の表面に形成された凹凸面15に沿って矢印Aで示した方向に円滑に流れるので、空気流の拡散が低減し、加えて凹凸面15が第二筐体10の表面積を大きくし空気流による放熱面積を大きくできるのでより放熱効果を向上している。   6A is a rear view of the second housing 10 of the notebook PC according to the first embodiment of the present invention, and FIG. 6B is an enlarged cross-sectional view taken along the line AA. The air blown by changing the airflow smoothly flows in the direction indicated by the arrow A along the uneven surface 15 formed on the surface of the second housing 10, so that the diffusion of the air flow is reduced, and in addition, the uneven surface 15 However, since the surface area of the second housing 10 can be increased and the heat dissipation area by the airflow can be increased, the heat dissipation effect is further improved.

なお、本実施例1の場合は、可動ファンダクト12からの送風領域を含めた一部の領域に凹凸面15を形成しているが、第二筐体10の全面に亘って形成してもよいし、十分な放熱効果が得られれば、もっと狭い領域でも構わない。また、凹凸面15の高さやピッチについても、放熱効果を考慮して適宜設定すればよいし、その領域内で均一である必要もない。   In the case of the first embodiment, the uneven surface 15 is formed in a part of the region including the air blowing region from the movable fan duct 12, but may be formed over the entire surface of the second housing 10. A narrower region may be used as long as a sufficient heat dissipation effect is obtained. Further, the height and pitch of the uneven surface 15 may be set as appropriate in consideration of the heat dissipation effect, and need not be uniform within the region.

なお、この場合は、凹凸面15は、第二筐体10の表面に形成したが、第二筐体10の下部にメッシュやスリットなどの開口部を設け、ファン装置7の送風を通過させて第二筐体10の内側に配置した第二の放熱部である放熱板11の方向に空気を送る場合には、第二筐体10の内面に形成するのも効果的であるし、第二筐体10の外面と内面の両方に形成してもよい。   In this case, the uneven surface 15 is formed on the surface of the second housing 10, but an opening such as a mesh or a slit is provided in the lower portion of the second housing 10 to allow the fan device 7 to pass air. When air is sent in the direction of the heat radiating plate 11 that is the second heat radiating portion disposed inside the second housing 10, it is effective to form it on the inner surface of the second housing 10. You may form in both the outer surface of the housing | casing 10, and an inner surface.

さらに、ファン装置7の配置を、第二筐体10の所定の位置に配置して第一筐体2の方向に送風する場合には、第一筐体2の表面又は内面に凹凸面を形成してもよい。   Further, when the fan device 7 is arranged at a predetermined position of the second housing 10 and blows air in the direction of the first housing 2, an uneven surface is formed on the surface or the inner surface of the first housing 2. May be.

以上説明したような構成によれば、例えば、第二の放熱経路を構成する冷却装置として液体冷媒の循環を強制的に行う液冷却装置を用い第二筐体10での自然放熱を行った場合に比較して、ファン装置7の送風を用い強制的な放熱を行うと、その放熱効果は倍増するので、第一の放熱経路の放熱効果を合わせるとそれ以上の放熱効果を得ることができ、効率的な放熱効果が得られる。   According to the configuration described above, for example, when natural heat dissipation is performed in the second housing 10 using a liquid cooling device that forcibly circulates the liquid refrigerant as the cooling device that configures the second heat dissipation path. Compared to the above, if forced heat dissipation is performed using the air blower of the fan device 7, the heat dissipation effect is doubled. Therefore, when the heat dissipation effect of the first heat dissipation path is combined, a further heat dissipation effect can be obtained. An efficient heat dissipation effect is obtained.

(実施例2)
図7は、本発明の実施例2におけるノートPCの平面図で、ファン装置7の第二筐体10への送風路内に破線で示した発熱体13と熱接続した第一の放熱部であるヒートシンク6を設けてあり、異なる2経路の放熱の送風路をファン装置7の同一の送風路で構成しており、第二筐体10の背面の可動ファンダクト12への送風路の一部にヒートシンク6を設けている。
(Example 2)
FIG. 7 is a plan view of the notebook PC according to the second embodiment of the present invention, and shows a first heat radiating portion thermally connected to the heating element 13 indicated by a broken line in the air passage to the second housing 10 of the fan device 7. A heat sink 6 is provided, and two different paths of heat dissipation air passages are configured by the same air passage of the fan device 7, and a part of the air passage to the movable fan duct 12 on the back surface of the second housing 10. A heat sink 6 is provided.

以上の構成により、第二筐体10の方向(矢印Bの方向)のみに送風すればよいが、ヒートシンク6を通過することにより、温度上昇した空気が第二筐体10に送風されるので、熱交換が弱まりやや放熱効果は小さくなるものの、第二筐体10の方向への送風路とヒートシンク6の方向への送風路を第一筐体2のコーナー部の側面と背面に別々に設ける必要がないので、そのファン装置7を第一筐体2のコーナー部に配置しなければならないなどの制約がなくなり、第一筐体2の背面の幅方向中央に配置も可能で、その分第一筐体2の設計自由度が増し、狭スペース化への対応も容易となる。   With the above configuration, it is only necessary to blow air in the direction of the second housing 10 (the direction of the arrow B), but air that has risen in temperature by passing through the heat sink 6 is blown to the second housing 10. Although the heat exchange is weakened and the heat dissipation effect is slightly reduced, it is necessary to separately provide the air passage toward the second housing 10 and the air passage toward the heat sink 6 on the side surface and the rear surface of the corner portion of the first housing 2. Therefore, there is no restriction that the fan device 7 must be arranged at the corner portion of the first housing 2, and the fan device 7 can be arranged at the center in the width direction on the back surface of the first housing 2, and accordingly the first The degree of freedom in designing the housing 2 is increased, and it is easy to cope with a narrow space.

つまり、ノートPCの場合であれば、電源用接続端子、PCカード・メモリカード・LANカードなど各種カードの挿入用スロット、又はUSBポートなどの様々な接続端子をオペレータの接続作業性のよい第一筐体2の側面に設けることがより容易となり、それらの接続端子に第二筐体10の内部で接続する各種デバイスのレイアウト設計が容易となる。   In other words, in the case of a notebook PC, the power connection terminal, the slot for inserting various cards such as a PC card, a memory card, and a LAN card, or various connection terminals such as a USB port can be connected to the first with good operator workability. It becomes easier to provide on the side surface of the housing 2, and layout design of various devices connected to the connection terminals inside the second housing 10 is facilitated.

なお、以上の説明において、本発明の主要な要素である受熱部、ヒートパイプなどの熱接続部、液体冷媒の循環路などの熱輸送部、ヒートシンクや放熱板などの放熱部、それらそれぞれの形態や接続方法については、その冷却装置を組み込む電子機器内の配置スペースや放熱効果を考慮して適宜設定すればよい。   In the above description, a heat receiving part, a heat connecting part such as a heat pipe, a heat transport part such as a circulation path of a liquid refrigerant, a heat radiating part such as a heat sink and a heat radiating plate, and their respective forms, which are main elements of the present invention. The connection method and the connection method may be set as appropriate in consideration of the arrangement space in the electronic device incorporating the cooling device and the heat dissipation effect.

例えば、本実施例では、第一の放熱経路として、ヒートパイプとヒートシンクを用いた構成、第二の放熱経路として、液体冷媒の循環路と内部に蛇行状に屈曲した液体冷媒の流路を形成した放熱板を用いた構成としたが、第一筐体と第二筐体は、相互に近設し、それぞれに放熱部を設けていればよく、それぞれの放熱経路の構成も本実施例には限定されず、両方いずれの放熱経路にもヒートパイプとヒートシンクを用いたり、両方いずれも放熱経路にも液体冷媒の循環路と内部に蛇行状に屈曲した液体冷媒の流路を形成した放熱板を用いたりしても問題はなく、それ以外の方式により放熱経路を構成しても構わない。   For example, in the present embodiment, a configuration using a heat pipe and a heat sink as the first heat radiation path, and a liquid refrigerant circulation path and a liquid refrigerant flow path bent in a meandering manner are formed as the second heat radiation path. However, the first housing and the second housing need only be close to each other and provided with a heat radiating portion, and the structure of each heat radiating path is also in this embodiment. There is no limitation, and both heat dissipation paths use heat pipes and heat sinks, or both heat dissipation paths have a liquid refrigerant circulation path and a liquid refrigerant flow path bent in a meandering manner inside. There is no problem even if it is used, and the heat radiation path may be configured by other methods.

また、本実施例では、液体冷媒の循環を強制的に行い放熱する液冷却装置には、その受熱部に構造も簡単なウエスコ型渦流ポンプを内蔵したが、ポンプは、その液体冷媒の循環路であればどこでもよく、取りつけ場所やポンプの方式にも限定はされない。   In this embodiment, the liquid cooling device that forcibly circulates the liquid refrigerant and dissipates heat incorporates a Wesco-type vortex pump with a simple structure in the heat receiving portion. As long as it is anywhere, there is no limitation on the installation location and the pump system.

さらに、ファン装置の配置は第一筐体ではなく、第二筐体の所定の位置に配置して第一筐体方向に送風してもよく、本実施例のような構成に限定されないだけでなく、本実施例では遠心型のファン装置を用いたが、その吸気方向と送風方向についても適宜設定すればよく、所望の風量や送風方向に応じて軸流型のファン装置を用いてもよい。   Furthermore, the arrangement of the fan device is not limited to the configuration of the first embodiment, and may be arranged at a predetermined position of the second housing to blow air toward the first housing. In this embodiment, the centrifugal fan device is used. However, the intake direction and the blowing direction may be set as appropriate, and an axial flow type fan device may be used according to a desired air volume and blowing direction. .

そして、各冷却装置の受熱部、冷媒熱放熱部の形態についても、本実施例に限定はされず、例えば、さらに放熱性の向上を図る目的で、本発明の構成要素であるファン装置とは別のファン装置を第一筐体又は第二筐体いずれかの所定の位置に配置し、第一の放熱経路における放熱部又は第二の放熱経路における放熱部いずれか、あるいはそのどちらの放熱部に対して送風しさらに放熱効果の高めるような構成にしてもよい。   And about the form of the heat receiving part of each cooling device and the refrigerant | coolant heat radiation part, it is not limited to a present Example, For example, with the objective of aiming at the improvement of heat dissipation further, with the fan apparatus which is a component of this invention Another fan device is arranged at a predetermined position of either the first housing or the second housing, and either the heat dissipation portion in the first heat dissipation path or the heat dissipation portion in the second heat dissipation path, or either heat dissipation portion It is also possible to adopt a configuration in which the air is ventilated and the heat dissipation effect is further enhanced.

最後に、本実施例においては、同一の発熱体の放熱を第一の放熱経路と第二の放熱経路の異なる2経路の放熱により行ったが、それぞれの放熱経路がそれぞれ別々の発熱体の放熱を行うような構成としてもよい。   Finally, in the present embodiment, heat radiation of the same heat generating element was performed by heat radiation of two different paths of the first heat dissipating path and the second heat dissipating path. It is good also as a structure which performs.

本発明は、冷却装置を備えた電子機器で、ノートPCだけでなくPDA、ポータブルDVDプレーヤー、カーナビゲーションシステムなど開閉型の表示装置を搭載した各種電子機器に適用できる。   The present invention is an electronic device provided with a cooling device, and can be applied not only to a notebook PC but also to various electronic devices equipped with an openable display device such as a PDA, a portable DVD player, and a car navigation system.

本発明の実施例1におけるノートPCの全体斜視図1 is an overall perspective view of a notebook PC according to Embodiment 1 of the present invention. 本発明の実施例1におけるノートPCの平面図The top view of the notebook PC in Example 1 of this invention 本発明の実施例1におけるノートPCの側面図The side view of the notebook PC in Example 1 of this invention (a)は第二筐体の全閉状態図、(b)は第二筐体の開き角度が略90度の状態図、(c)は第二筐体の開き角度が略110度の状態図、(d)は第二筐体の開き角度が略140度の状態図、(e)は第二筐体の開き角度が略180度の状態図(A) is a fully closed state diagram of the second housing, (b) is a state diagram in which the opening angle of the second housing is approximately 90 degrees, and (c) is a state in which the opening angle of the second housing is approximately 110 degrees. FIG. 4D is a state diagram in which the opening angle of the second housing is approximately 140 degrees, and FIG. 4E is a state diagram in which the opening angle of the second housing is approximately 180 degrees. (a)は可動ファンダクトの内面に形成した通風面を右側面上方からみた図、(b)は可動ファンダクトの内面に形成した通風面を左側面上方からみた図、(c)は可動ファンダクトを背面からみた図(A) is the figure which looked at the ventilation surface formed in the inner surface of a movable fan duct from right side upper surface, (b) is the figure which looked at the ventilation surface formed in the inner surface of a movable fan duct from left side upper surface, (c) is a movable fan View of the duct from the back (a)は本発明の実施例1におけるノートPCの第二筐体の背面図、(b)はラインA−Aの断面拡大図(A) is a rear view of the 2nd housing | casing of the notebook PC in Example 1 of this invention, (b) is the cross-sectional enlarged view of line AA. 本発明の実施例2におけるノートPCの平面図The top view of the notebook PC in Example 2 of this invention 従来の特許文献1に記載のノートPCの備えた冷却装置の全体構成図Whole block diagram of cooling device with which notebook PC of conventional patent document 1 is equipped 従来の特許文献2に記載のノートPCの備えた冷却装置の全体概略図Whole schematic diagram of cooling device with notebook PC described in Patent Document 2

符号の説明Explanation of symbols

1 ノートPC
2 第一筐体
2a 通風孔
2b 回動軸
2c 凸部
3 キーボード
4 第一の受熱部
5 ヒートパイプ
6 ヒートシンク
7 ファン装置
7a 吸気孔
8 第二の受熱部
9 液体冷媒の循環路
10 第二筐体
10a 凸部
11 放熱板
11a 液体冷媒の流路
12 可動ファンダクト
12a,12b 通風孔
12c,12d 凸部
12A,12B,12C 通風面
13 発熱体
14 案内板
14a,14b,14c 摺動孔
15 凹凸面
1 Notebook PC
DESCRIPTION OF SYMBOLS 2 1st housing | casing 2a Ventilation hole 2b Rotating shaft 2c Convex part 3 Keyboard 4 1st heat receiving part 5 Heat pipe 6 Heat sink 7 Fan apparatus 7a Intake hole 8 Second heat receiving part 9 Liquid refrigerant circulation path 10 2nd housing Body 10a Convex part 11 Heat sink 11a Flow path of liquid refrigerant 12 Movable fan duct 12a, 12b Ventilation hole 12c, 12d Protrusion part 12A, 12B, 12C Ventilation surface 13 Heating element 14 Guide plate 14a, 14b, 14c Sliding hole 15 Concavity and convexity surface

Claims (7)

第一筐体と第二筐体とを開閉可能に連結し、この2つの筐体の少なくともいずれか一方に設けた放熱体と、2つの筐体の双方に設けた前記発熱体の熱を放熱する放熱部を備えた電子機器であって、前記第一筐体又は前記第二筐体のいずれか一方の筐体に配置したファン装置により前記第一筐体及び前記第二筐体の放熱部あるいはその放熱部と熱接続した筐体に送風し放熱するように構成したことを特徴とした電子機器。 The first housing and the second housing are connected so as to be openable and closable, and the heat from the heat dissipating body provided in at least one of the two housings and the heat generating body provided in both of the two housings is dissipated. An electronic device including a heat dissipating unit that performs heat dissipation of the first housing and the second housing by a fan device disposed in either the first housing or the second housing Or the electronic device characterized by having comprised so that it might ventilate and thermally radiate to the housing | casing thermally connected with the thermal radiation part. 前記第一筐体の放熱部を介した放熱経路と前記第二筐体の放熱部を介した放熱経路において、前記ファン装置の送風路を同一としたことを特徴とする請求項1記載の電子機器。 2. The electronic device according to claim 1, wherein in the heat radiation path through the heat radiation portion of the first housing and the heat radiation path through the heat radiation portion of the second housing, the air passage of the fan device is the same. machine. 前記第一筐体の前記第二筐体を回動支持する側の側面に、前記第二筐体の開閉動作に連動した可動ファンダクトを設けたことを特徴とする請求項1又は2記載の電子機器。 The movable fan duct interlocking with the opening / closing operation | movement of the said 2nd housing | casing was provided in the side surface of the said 1st housing | casing at the side which supports the said 2nd housing | casing rotationally. Electronics. 前記可動ファンダクトの異なる2方向のそれぞれの面に1乃至複数個の通風孔を設けたことを特徴とする請求項3記載の電子機器。 4. The electronic apparatus according to claim 3, wherein one or a plurality of ventilation holes are provided on each surface in two different directions of the movable fan duct. 前記可動ファンダクトの内面に傾斜角度が相互に異なる複数個の送風面を形成し、前記第二筐体の前記第一筐体に対する開き角度に対応して前記送風面が前記ファン装置の送風方向を規制したことを特徴とする請求項3記載の電子機器。 A plurality of air blowing surfaces having different inclination angles are formed on the inner surface of the movable fan duct, and the air blowing surface corresponds to the opening angle of the second housing with respect to the first housing. The electronic device according to claim 3, wherein the electronic device is regulated. 前記可動ファンダクトの内面に形成した前記送風面において、前記第二筐体の前記第一筐体に対する開き角度が所定の範囲内で前記第二筐体の表面と略平行となる送風面の通風幅を他の送風面の通風幅よりも大きくしたことを特徴とする請求項5記載の電子機器。 In the air blowing surface formed on the inner surface of the movable fan duct, the ventilation surface ventilates such that the opening angle of the second housing with respect to the first housing is substantially parallel to the surface of the second housing within a predetermined range. 6. The electronic apparatus according to claim 5, wherein the width is larger than the ventilation width of the other air blowing surface. 前記放熱部を設けたいずれかの筐体の表面又は内面に凹凸面を形成したことを特徴とする請求項1又は2記載の電子機器。 The electronic apparatus according to claim 1, wherein a concavo-convex surface is formed on a surface or an inner surface of any housing provided with the heat radiating portion.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008292697A (en) * 2007-05-23 2008-12-04 Sony Corp Display device
JP2009129378A (en) * 2007-11-27 2009-06-11 Sony Corp Heat radiation structure of electronic component, and display device
JP4771004B1 (en) * 2010-11-08 2011-09-14 パナソニック株式会社 Image display device
JP2014029590A (en) * 2012-07-31 2014-02-13 Fujitsu Ltd Electronic device and support component
WO2022240126A1 (en) * 2021-05-10 2022-11-17 삼성전자 주식회사 Electronic device and method for operating electronic device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04354010A (en) * 1991-05-31 1992-12-08 Hitachi Ltd Mounting structure for compact computer
JP2003133776A (en) * 2001-10-26 2003-05-09 Matsushita Refrig Co Ltd Electronic apparatus
JP2004199675A (en) * 2002-12-16 2004-07-15 Internatl Business Mach Corp <Ibm> Method and configuration to raise cooling capability of portable computer
JP2004302726A (en) * 2003-03-31 2004-10-28 Hitachi Ltd Notebook type liquid-cooled pc

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04354010A (en) * 1991-05-31 1992-12-08 Hitachi Ltd Mounting structure for compact computer
JP2003133776A (en) * 2001-10-26 2003-05-09 Matsushita Refrig Co Ltd Electronic apparatus
JP2004199675A (en) * 2002-12-16 2004-07-15 Internatl Business Mach Corp <Ibm> Method and configuration to raise cooling capability of portable computer
JP2004302726A (en) * 2003-03-31 2004-10-28 Hitachi Ltd Notebook type liquid-cooled pc

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008292697A (en) * 2007-05-23 2008-12-04 Sony Corp Display device
JP4508214B2 (en) * 2007-05-23 2010-07-21 ソニー株式会社 Display device
JP2009129378A (en) * 2007-11-27 2009-06-11 Sony Corp Heat radiation structure of electronic component, and display device
US7885067B2 (en) 2007-11-27 2011-02-08 Sony Corporation Heat radiation structure of electronic component and display device
JP4771004B1 (en) * 2010-11-08 2011-09-14 パナソニック株式会社 Image display device
JP2014029590A (en) * 2012-07-31 2014-02-13 Fujitsu Ltd Electronic device and support component
WO2022240126A1 (en) * 2021-05-10 2022-11-17 삼성전자 주식회사 Electronic device and method for operating electronic device

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