546802 A7 B7 五、發明説明（1 ) 【發明所屬之技術領域】 (請先閱讀背面之注意事項再填寫本頁) 本發明係關於冷卻MPU等之電子零件之電子零件冷 卻裝置，特別是關於一種由風扇迫冷之電子零件散熱器（ heat sink )之形式的電子零件冷卻裝置。 【習知技術】 組合具備複數之散熱鰭片之散熱器與風扇裝置所構成 之電子零件冷卻裝置，如可見於日本專利特開平6 -26 8 1 25號、曰本專利特開平 8 — 8 3 87 3號、美國專利第 5,5 1 9,574號、美國專利第 5,484,0 1 3號、美國專利第 5,4 5 2，181號、美國專利第 5,421，402號、美國專利第 5,25 1，101號、美國專利第5,309,983號等般地爲所周知。 經濟部智慧財產局員工消費合作社印製 習知之電子零件冷卻裝置之大部分係具有：由風扇裝 置吐出，由散熱鰭片取得熱而變暖之氣流由散熱器之外圍 向四方吐出之構造。又，如在美國專利第5,309,9 83號、 美國專利第5，5 1 9,574號之圖3 A、日本專利實公平2 — 23 0 34號以及美國新型專利第403,760號可見到之電子零 件冷卻裝置般地，在使用複數之散熱鰭片留有間隔且被平 行配置之散熱器者中，空氣被吐出於散熱鰭片延伸之2方 向。此種散熱器藉由押出成形，可以便宜地製造。 另外，在美國專利第5,740,0 14號中，顯示以與在散 熱器之基部之上平行配置之複數之散熱鰭片之全部正交地 形成複數之分隔縫隙，將平行配置之複數之散熱鰭片分成 細小的板狀之長條，由軸流風扇裝置對這些複數之長條吹 -4 - 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） 546802 A7 B7 五、發明説明（2 ) 風，以提升冷卻效率爲目的之電子零件冷卻裝置。複數之 分隔縫隙係部份地與散熱器之基部部份地分隔。在此電子 零件冷卻裝置中，將風扇裝置以螺絲固定在散熱器。 (請先閱讀背面之注意事項再填寫本頁) 又，在美國專利第 5,615,998或美國新型專利第 403,7 60號中，揭示具備：在將風扇裝置安裝於散熱器時 ，只需使風扇裝置之機殻接近散熱器，使設置於風扇裝置 之複數之繫合部與設置於散熱器之複數之被繫合部相互繫 合之繋合構造的電子零件冷卻裝置。 【發明欲解決之課題】 例如，以藉由押出成形而形成之散熱器，想要利用繫 合構造將風扇裝置固定於散熱器之情形，形成在散熱器側 之被繫合部，係成爲在押出方向連續之單純之面形狀。因 此’在要將設置於風扇裝置之機殼的繫合部繫合於設置在 散熱器側之被繫合部之情形，如不設置某種之防止分離構 造’於風扇裝置之機殼或散熱器-施加朝向前述之押出方 向之力量，會有兩者之間之繫合關係被簡單分開之問題。 本發明之目的在於提供：容易定位風扇裝置之機殻與 經濟部智慧財產局員工消費合作社印製 散熱器，而且，兩者間之繫合不會簡單分開之電子零件冷 卻裝置。 【解決課題用之手段】 本發明之改良對象的電子零件冷卻裝置係具備：具有 內部安裝有欲冷卻之電子零件，而且表面具備複數之散熱 -5- 本紙張尺度適用中國國家標準（CNS ) A4規格（21〇x297公釐） 546802 A7 B7 五、發明説明（3 ) (請先閲讀背面之注意事項再填寫本頁) 鰭片之基部；以及由基部之相面對的一對之端部站立，而 且前述複數之散熱鰭片位於其間之一對之散熱器側壁部之 散熱器；以及冷卻此散熱器之風扇裝置。通常，藉由押出 成形等所形成之單純形狀的散熱器的複數片的散熱鰭片與 一對之散熱器側壁部幾乎成爲平行，而且相互間留有間隔 地排列配置。一般的風扇裝置係具備：具有複數之葉片之 動葉輪；及使安裝於固定在旋轉軸之轉子的動葉輪旋轉之 馬達；及具備容納動葉輪以及馬達之開口部之機殻；及使 馬達位於開口部之中央部地，連結馬達之外殼與機殼之複 數根之連結板（web )。而且，風扇裝置之機殼具有與散 熱器之基部表面留有間隔相互面對之對向壁部；及由對向 壁部之相面對的一對之端緣部延伸於散熱器側之一對之機 殻側壁部。而且，複數之繫合部相互間留有間隔，分別設 置在一對之機殼側壁部，與複數之繫合部繫合之複數的被 繫合部設置在散熱器之一對的散熱器側壁部。 經濟部智慧財產局員工消費合作社印製 在本發明中，由散熱器之前端部朝向基部側延伸，使 風扇裝置產生之氣流流通之氣流流通用之複數的縫隙部， 在與縫隙部延伸之方向正交之方向預先留有間隔地形成在 散熱器之一對的散熱器側壁部。此種縫隙部例如可以藉由 由散熱器之一對的散熱器側壁部之外側朝向散熱器之內部 連續延伸，預先留有間隔地形成分隔鄰接於基部之一部份 以及一對之散熱器側壁部之複數片的散熱鰭片之複數的分 隔縫隙而獲得。 而且，在一對之機殼側壁部設置至少被嵌合於1個之 -6- 本紙張尺度適用中國國家標準（CNS )八4規格（210 X 297公釐） 546802 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明説明（4 ) 縫隙部之至少1個之定位嵌合用突出部。又’決定此定位 嵌合用突出部與複數之繫合部之間之位置關係爲使定位嵌 合用突出部在被嵌合於特定之縫隙部之狀態下’前述繫合 部與複數之被繫合部成爲繫合之狀態。 如此一來，使風扇裝置產生之氣流通過複數之縫隙部 流通之故，可以提高冷卻效率。而且’設置在機殼側壁部 之定位嵌合用突出部如被嵌合於此縫隙部’此定位嵌合用 突出部與縫隙部之嵌合構造係成爲構成防止分開之構造。 因此，在機殼與散熱器之一方即使在使兩者滑動之方向施 加力量，兩者之繫合也不會被解除。 設置於機殼之複數之繫合部與設置於散熱器之複數之 被繫合部，其構成如下：藉由在一對之機殼側壁部被施加 互相接近方向之力量之狀態下，使機殼由散熱器分離之動 作，兩者之繫合被解除。 具體而言，留有間隔使2個之鉤部份當成繫合部分別 設置在一對之機殼側壁部而與其成爲一體。而且，使分別 設置在一對之機殼側壁部之2個之鉤部份於散熱器以及機 殼被組合之狀態中，位於散熱器側壁部之內側而且比機殼 側壁部之其它部份還位於內側地構成，使鉤部份之繫合面 朝向外側延伸而形成。又，將與分別設置於對應之機殻側 壁部之2個之鉤部份的繫合面繫合之被繫合面當成前述被 繫合面形成在一對之散熱器側壁部之內壁部。 又，使散熱器之一對之散熱器側壁部之長度比機殼之 一對的機殻側壁部之長度還長，可以變更風扇裝置對於散 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） ^狀衣 ：---、訂------L (請先閲讀背面之注意事項再填寫本頁) 546802 A7 B7 五、發明説明（5 ) 熱器之安裝位置地，橫跨比機殼側壁部之長度還長範圍地 (請先閱讀背面之注意事項再填寫本頁) 在一對之散熱器側壁部形成前述縫隙部。如此一來，可以 配合被裝置在散熱器之基部裏面的電子零件之發熱源來決 定風扇裝置之位置，能夠更提升冷卻效率。 【發明之實施形態】 以下，參考圖面說明本發明之實施形態。圖1〜圖3 係本發明之電子零件冷卻裝置之實施形態之一例之平面圖 、正面圖以及左側面圖，圖4係在此實施形態可以使用之 散熱器之平面圖。於這些圖中，以1顯示之構件爲冷卻 MPU (電子零件）用之電子零件冷卻裝置，以3顯示之構 件係藉由押出成形法與切削加工而被形成爲一體之鋁製之 散熱器，以5顯示之構件係軸流風扇裝置。電子零件冷卻 裝置1係軸流風扇裝置5被安裝於散熱器3而構成。 散熱器3係一體具有：矩形狀之基部7以及在與此基 部7之長度方向正交之方向（寬度方向）之兩側朝向軸流 風扇裝置5之機殻側延伸之一對之散熱器側壁部9A以及 9B。又，欲冷卻之電子零件MPU可以透過支撐物而裝置 經濟部智慧財產局員工消費合作社印製 於基部之裏面，也可以藉由黏著劑直接裝置在基部之裏面 〇 如圖3以及圖4所示，複數片之散熱鰭片1 1 a…以及 1 1 b…爲一體地設置於散熱器3之基部7之表面。這些散 熱鰭片1 1 a…以及1 1 b…分別在與基部7之長度方向正交 之寬度方向（與基部7之長度方向正交，而且與基部7之 -8 - 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） 546802 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明説明（6 ) 表面平行延伸之方向或一對之散熱器側壁部9A以及9B 排列或相面對方向）留有間隔地幾乎成爲平行地被配置。 而且，散熱鰭片11a…以及lib…分別實質上沒有高度變 化地分別在長邊方向延伸。如觀察圖3便可明白，散熱鰭 片11a…以及1 lb…具有隨著由基部7分離，寬度尺寸逐 漸變小之形狀。又，如圖3所示，一對之散熱器側壁部 9A以及9B係由：本體部份9A!以及9B!、及由本體部份 9A:以及9B!之前端部往內側幾乎水平延伸之水平部9A2 以及9B2、及由水平部9A2以及9B2之內側端部立起之嵌 合端部9A3以及9B3所構成。這些部份在分隔縫隙10…被 形成之前，在基部7之長度方向連續延伸。而且，水平部 9A2以及9B2之朝向基部7側之內側之面構成與分別設置 在後述之一對之機殼側壁部2 1 B以及2 1 C之2個之鉤部 份22···之繫合面22 b繋合之被繋合面9A21以及9B21。又 ，在被繋合面 9A”以及9Bn之相反側，水平部 9A2以及 9B2之外側之面構成與機殼側壁部21 B以及21C之一部份 接觸之接觸面9A22以及9B22。被繫合面9An以及9B21以 及接觸面9A22以及9B22也在後述之分隔縫隙被形成之前 ，於長邊方向連續延伸形成。 由一對之散熱器側壁部9 A以及9B之外側朝向散熱 器3之內部連續地延伸，分隔鄰接基部7之一部份以及一 對之散熱器側壁部9A以及9B之複數片的散熱鱈片11a… 的複數之分隔縫隙1 0…在長度方向留有預先決定之間隔 而形成於散熱器3。分隔縫隙1 0…係藉由押出成形製作不 (請先閱讀背面之注意事項再填寫本頁) •裝· -、11 本紙張尺度適用中國國家標隼（CNS ) A4規格（210 X 297公釐） -9 - 546802 A7 B7 五、發明説明（7 ) (請先閲讀背面之注意事項再填寫本頁) 具備分隔縫隙1 0之散熱器預備成形品，之後，由一對之 散熱器側壁部9A以及9B之外側利用NC加工機，施行切 削加工而形成。此分隔縫隙1 〇…係不隔斷具有不直接暴 露於藉由動葉輪1 5之複數之葉片1 3之旋轉而產生之氣流 之部份之散熱鰭片11 b…之前述部份地形成爲相同長度之 尺寸。換言之，不藉由分隔縫隙1 0…分隔比與散熱器3 之動葉輪1 5之複數之葉片1 3相面對之部份或區域還位於 內側之部份或區域地，決定分隔縫隙10…之長度。如圖4 所示，設置在基部7之中央部之複數的散熱鰭片1 1 b…不 由分隔縫隙所分隔，在基部7之長度方向連續延伸。如此 一來，不與軸流風扇裝置5之葉片13相面對之散熱鰭片 之部份（散熱鰭片11 b…之中央區域部份）之熱，藉由軸 流風扇裝置5透過往藉由軸流風扇裝置5被直接冷卻之散 熱鰭片1 1 b…之外側部份（位於長邊方向之兩側之部份） 連續之散熱鰭片1 1 b…被傳達散熱。其結果爲：依據本發 明之電子零件冷卻裝置，散熱器之7中央部區域之溫度降 低，冷卻效率提高。 經濟部智慧財產局員工消費合作社印製 在一對之散熱器側壁部9A以及9B形成分隔縫隙10 之結果，便形成了由其之前端部朝向基部7側延伸，使風 扇裝置5產生之氣流流通之氣流流通用之複數的縫隙部 12 (圖 2 )。 如圖1所示，軸流風扇裝置5係具備：具有7片之葉 片 Π…之動葉輪1 5、及使固定於未圖示出之旋轉軸之動 葉輪15旋轉之馬達17、及具備容納動葉輪15以及馬達 -10- 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 546802 A7 B7 五、發明説明（8 ) 17之吸引用開口部19之機殼21、及使馬達17位於吸引 用開口部1 9之中央部而連結馬達17之外殼1 7a與機殼2 1 之3個之連結板23a〜23c。在此例中，機殻21、馬達17 之外殼17a以及3個之連結板23a〜23c係藉由以合成樹 脂爲主成份之成形材料而形成爲一體。又，馬達17之內 部之構造在日本專利特開平8 - 8 3 873號公報中有詳細說 明之故，省略其說明。 動葉輪15之葉片13…之構造爲迫使由馬達17之旋 轉軸之軸線方向之一方之方向通過吸引用開口部1 9而吸 引於基部7側之氣流吐出於馬達17之旋轉軸之直徑方向 。當然，此風扇爲軸流送風器之故，吸引之氣流之一部份 當然流動在軸線方向（朝向基部7 )。 機殼2 1具備：與散熱器3之表面具有間隔相面對之 對向壁部21人與由對向壁部21A之寬度方向（與對向壁 部 21A之長缝方向正交之方向）之兩邊緣部延伸在散熱 器3側之一對之機殼側壁部2 1 B以及2 1 C、及在由散熱器 3分離之方向，由對向壁部2 1 A延伸，內部具有吸引用開 口部19之環狀壁部21D。機殻側壁部21B以及21C與散 熱器3之散熱器側壁部9 A以及9 B，在兩者被組合之狀態 下，於長邊方向之兩側分別形成開口之2個之吐出口 25 、2 7，在散熱鰭片1 1 a…以及1 1 b…之機殼2 1側之端部與 機殼21之對向壁部21A之間，形成由一方之吐出口至另 一方之吐出口連續延伸之氣流流通空間28。 由旋轉葉片…所吐出之氣流通過散熱_片lla···]^ 本紙張尺度適用中國國家標华（CNS)A4規格（210X297公釐） - (請先閱讀背面之注意事項再填寫本頁) 訂546802 A7 B7 V. Description of the invention (1) [Technical field to which the invention belongs] (Please read the precautions on the back before filling out this page) The present invention relates to an electronic part cooling device for cooling electronic parts such as MPU, and more particularly An electronic component cooling device in the form of an electronic component heat sink forcedly cooled by a fan. [Knowledge technology] An electronic part cooling device composed of a radiator with a plurality of heat sinking fins and a fan device can be found in Japanese Patent Laid-Open No. 6 -26 8 1 25 and Japanese Patent Laid-open No. 8 — 8 3 87 3, U.S. Patent No. 5,5 1 9,574, U.S. Patent No. 5,484,0 1 3, U.S. Patent No. 5,4 5 2,181, U.S. Patent No. 5,421,402, U.S. Patent No. 5,25 No. 1,101, U.S. Patent No. 5,309,983 and the like are generally known. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. Most of the conventional electronic part cooling devices have a structure that is discharged from a fan device, and the airflow that is heated by the heat radiation fins and warmed is discharged from the periphery of the radiator to the four sides. In addition, as shown in Figure 3A of U.S. Patent No. 5,309,9 83, U.S. Patent No. 5,5 1 9,574, Japanese Patent Real Equity No. 2-23 0 34, and U.S. New Patent No. 403,760. In a device-like manner, in a case where a plurality of heat dissipating fins are used in which a plurality of heat dissipating fins are spaced apart and arranged in parallel, air is expelled from two directions in which the heat dissipating fins extend. Such a heat sink can be manufactured inexpensively by extrusion molding. In addition, in U.S. Patent No. 5,740,0 14, it is shown that a plurality of separation gaps are formed orthogonally to all of the plurality of heat radiation fins arranged in parallel above the base of the heat sink, and the plurality of heat radiation fins arranged in parallel are formed. The sheet is divided into small strips, and these plural strips are blown by an axial fan device -4-This paper size applies to China National Standard (CNS) A4 (210X297 mm) 546802 A7 B7 V. Description of the invention ( 2) Wind, electronic parts cooling device for the purpose of improving cooling efficiency. The plurality of separation slits are partially separated from the base of the heat sink. In this electronic parts cooling device, the fan unit is fixed to the heat sink with screws. (Please read the precautions on the back before filling out this page.) Also, in US Patent No. 5,615,998 or US New Patent No. 403,7 60, it is disclosed that when the fan device is mounted on the radiator, only the fan device is required. The casing is close to the radiator, and the electronic component cooling device has a coupling structure in which a plurality of coupling portions provided in the fan device and a plurality of coupled portions provided in the radiator are coupled with each other. [Problems to be Solved by the Invention] For example, in the case of a heat sink formed by extrusion molding, and a fan structure is to be fixed to the heat sink with a coupling structure, a coupling portion formed on the heat sink side is formed in Simple surface shape with continuous extrusion direction. Therefore, in the case where the engaging portion provided on the casing of the fan device is to be connected to the engaged portion provided on the radiator side, if there is not provided a certain separation prevention structure, the fan device may be provided with a casing or a heat sink. Vessels-Applying the force in the direction of the above-mentioned extrusion, there will be a problem that the coupling relationship between the two is simply separated. The purpose of the present invention is to provide an electronic component cooling device that can easily locate the casing of the fan device and the radiator printed by the consumer cooperative of employees of the Intellectual Property Bureau of the Ministry of Economic Affairs, and that the two are not simply separated. [Means for solving the problem] The electronic component cooling device to be improved according to the present invention is provided with an electronic component to be cooled inside, and has a plurality of heat dissipation surfaces on its surface. -5- This paper standard is applicable to Chinese National Standard (CNS) A4. Specifications (21 × 297 mm) 546802 A7 B7 V. Description of the invention (3) (Please read the notes on the back before filling this page) The base of the fin; and the pair of ends facing each other by the base Moreover, the aforementioned plurality of heat dissipation fins are located on a pair of radiators on the side wall portion of the radiator; and a fan device for cooling the radiator. Generally, a plurality of heat sink fins of a simple heat sink formed by extrusion molding or the like are almost parallel to a pair of heat sink side wall portions, and are arranged at intervals with respect to each other. A general fan device includes: a moving impeller having a plurality of blades; and a motor for rotating the moving impeller mounted on a rotor fixed to a rotating shaft; and a casing having an opening for accommodating the moving impeller and the motor; At the center of the opening, a plurality of webs (web) connecting the housing of the motor and the casing. Moreover, the casing of the fan device has opposite wall portions facing each other at a distance from the base surface of the heat sink; and an end edge portion of the pair of opposite walls extending from the opposite wall portions extends to one of the heat sink sides To the side wall of the cabinet. Moreover, a plurality of coupling portions are spaced apart from each other, and are respectively disposed on a pair of casing side wall portions, and a plurality of coupled portions coupled to the plurality of coupling portions are disposed on a pair of radiator sidewalls. unit. Printed in the present invention by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, the front end portion of the radiator extends toward the base side, and a plurality of slit portions common to the air flow generated by the air flow generated by the fan device are in the direction extending with the slit portion. Orthogonal directions are formed in advance on a side wall portion of a pair of heat sinks at intervals. Such a slit portion may extend continuously from the outer side of a pair of radiator side wall portions toward the inside of the radiator, for example, and a space adjacent to a portion of the base portion and a pair of radiator side walls may be formed in advance at intervals. It is obtained by a plurality of divided slits of a plurality of heat radiation fins. Moreover, at least one of them is fitted on the side wall of a pair of cabinets. -6- This paper size applies to China National Standard (CNS) 8-4 specifications (210 X 297 mm). Cooperative prints A7 B7 5. Description of the invention (4) At least one protrusion for positioning and fitting of the slit portion. Also, "determining the positional relationship between the positioning-fitting projections and the plurality of engaging portions is such that the positioning-fitting projections are fitted to a specific gap portion," and the aforementioned engaging portions and the plurality of engaging portions are engaged. The department becomes a state of integration. In this way, the airflow generated by the fan device is allowed to flow through the plurality of slits, thereby improving the cooling efficiency. In addition, if a projection for positioning and fitting provided on the side wall portion of the cabinet is fitted to the slit portion, the fitting structure between the positioning and projection for fitting and the slit portion is configured to prevent separation. Therefore, even if force is applied to one of the case and the radiator, the coupling between the two will not be released. The plurality of engaging portions provided in the casing and the plurality of engaged portions provided in the heat sink are configured as follows: the force is applied to the side wall portions of the pair of cabinets in a state in which the forces approach each other, The case is separated by the radiator, and the connection between the two is released. Specifically, a space is provided so that the two hook portions are provided as coupling portions on the side wall portions of a pair of casings to be integrated with each other. Furthermore, in a state where the two hook portions respectively provided on a pair of casing side wall portions are combined with the radiator and the casing, they are located inside the radiator side wall portion and more than the other portions of the casing side wall portion. It is formed on the inner side and is formed by extending the engaging surface of the hook portion toward the outer side. In addition, a binding surface to be combined with a binding surface provided on two hook portions of the corresponding side wall portion of the casing is formed as the aforementioned binding surface on an inner wall portion of a pair of radiator side wall portions. . In addition, the length of the side wall portion of one pair of radiators is longer than the length of the side wall portion of one pair of cabinets. The fan unit can be changed to apply Chinese National Standard (CNS) A4 specifications for bulk paper sizes ( 210X297 mm) ^ clothing: ---, order ------ L (Please read the precautions on the back before filling out this page) 546802 A7 B7 V. Description of the invention (5) The installation location of the heater, The gap is longer than the length of the side wall of the case (please read the precautions on the back before filling this page). In this way, the position of the fan device can be determined in conjunction with the heat source of the electronic parts installed inside the base of the radiator, which can further improve the cooling efficiency. [Embodiment of the invention] Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 3 are a plan view, a front view, and a left side view of an example of an embodiment of the electronic component cooling device of the present invention, and FIG. 4 is a plan view of a heat sink that can be used in this embodiment. In these figures, the component shown by 1 is an electronic component cooling device for cooling MPU (electronic parts), and the component shown by 3 is an aluminum heat sink which is integrated by extrusion molding and cutting processing. The component shown at 5 is an axial fan unit. The electronic component cooling device 1 is a system in which an axial flow fan device 5 is mounted on a radiator 3. The radiator 3 is integrally provided with a rectangular base 7 and a pair of side walls of the radiator extending on both sides of the base 7 in a direction (width direction) orthogonal to the length direction of the base 7 toward the casing side of the axial fan device 5 9A and 9B. In addition, the MPU of the electronic component to be cooled can be printed on the base through the support and installed by the consumer property cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, or it can be directly installed inside the base through an adhesive. See Figures 3 and 4 The plurality of heat radiating fins 1 1 a... And 1 1 b... Are integrally provided on the surface of the base 7 of the heat sink 3. These heat dissipation fins 1 1 a ... and 1 1 b ... are respectively in the width direction orthogonal to the length direction of the base 7 (orthogonal to the length direction of the base 7 and -8 of the base 7)-This paper size is applicable to the country of China Standard (CNS) A4 specification (210X 297 mm) 546802 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (6) The direction of parallel surface extension or a pair of radiator side wall portions 9A and 9B are arranged or The facing directions) are arranged almost in parallel with an interval. Further, the heat radiation fins 11a ... and lib ... each extend in the longitudinal direction without substantially changing the height. As can be understood by observing FIG. 3, the heat dissipating fins 11a ... and 1 lb ... have a shape in which the width dimension gradually decreases as they are separated by the base portion 7. Also, as shown in FIG. 3, the pair of radiator side wall portions 9A and 9B are formed by: the main body portions 9A! And 9B !, and the front end portions of the main body portions 9A: and 9B! That extend almost horizontally inwardly. The portions 9A2 and 9B2 and the fitting end portions 9A3 and 9B3 which are formed by the inner end portions of the horizontal portions 9A2 and 9B2 standing up. These portions extend continuously in the length direction of the base portion 7 before the separation slits 10 ... are formed. Further, the inner surfaces of the horizontal portions 9A2 and 9B2 facing the base portion 7 side are constituted by two hook portions 22, which are respectively provided on two side wall portions 2 1 B and 2 1 C of a pair described later. The joint surface 22 b binds the bound surfaces 9A21 and 9B21. On the opposite sides of the to-be-bonded surfaces 9A "and 9Bn, the surfaces outside the horizontal portions 9A2 and 9B2 constitute contact surfaces 9A22 and 9B22 that are in contact with a part of the casing side wall portions 21 B and 21C. The to-be-bonded surface 9An and 9B21 and the contact surfaces 9A22 and 9B22 are continuously formed in the long side direction before the formation of a separation gap described later. The pair of heat sink side wall portions 9 A and 9B continuously extend toward the inside of the heat sink 3 A plurality of partitioning gaps 10a separating a plurality of radiating cod fins 11a ... adjacent to a portion of the base portion 7 and a pair of radiator side wall portions 9A and 9B are formed at a predetermined interval in the longitudinal direction to form heat radiation. Device 3. Separating the gap 1 0… is made by extrusion molding (please read the precautions on the back before filling this page) • Installation ·-, 11 This paper size applies to China National Standard (CNS) A4 specifications (210 X 297 mm) -9-546802 A7 B7 V. Description of the invention (7) (Please read the precautions on the back before filling out this page) Prepare a pre-formed radiator with a gap of 10, and then use a pair of radiators 9A side wall portion The outer side of 9B is formed by NC machining by cutting. This separation gap 1 0 ... is not partitioned and has a portion that is not directly exposed to the airflow generated by the rotation of the plurality of blades 13 of the moving impeller 15 The aforementioned portions of the heat-dissipating fins 11 b ... are formed to have the same length. In other words, the portion facing the plurality of moving blades 15 of the radiator 3 of the radiator 3 does not divide the gap 10 to the ratio of the facing portions 13 facing each other. Or the area is also located on the inner part or area, which determines the length of the separation gap 10 ... As shown in FIG. 4, the plurality of heat dissipation fins 1 1 b ... provided in the center of the base 7 are not separated by the separation gap. The length of the base portion 7 extends continuously. In this way, the heat of the heat dissipation fin portion (the central area portion of the heat dissipation fin 11 b ...) which does not face the blade 13 of the axial fan device 5 is caused by The axial fan device 5 passes through the cooling fins 1 1 b directly cooled by the axial fan device 5 to the outer part (parts located on both sides of the long side direction). The continuous cooling fins 1 1 b ... The heat is transmitted. As a result: In the electronic device cooling device, the temperature of the central area of the radiator 7 is reduced, and the cooling efficiency is improved. The consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs printed on the pair of radiator side walls 9A and 9B to form a separation gap 10, which is formed. A plurality of slit portions 12 (FIG. 2) that extend from the front end toward the base 7 side and allow the airflow generated by the airflow generated by the fan device 5 to be common are shown in FIG. 1. As shown in FIG. 1, the axial fan device 5 is provided with: 7 blades Π ... moving impeller 1 5 and a motor 17 for rotating a moving impeller 15 fixed to a rotating shaft (not shown), and having a moving impeller 15 and a motor -10- This paper size applies Chinese national standards (CNS) A4 specification (210X297 mm) 546802 A7 B7 V. Description of the invention (8) 17 The casing 21 of the suction opening 19 and the motor 17 are located at the center of the suction opening 19 to connect the motor 17 Three connecting plates 23a to 23c of the outer case 17a and the case 2i. In this example, the casing 21, the casing 17a of the motor 17, and the three connecting plates 23a to 23c are integrally formed by a molding material mainly composed of synthetic resin. The structure inside the motor 17 is explained in detail in Japanese Patent Laid-Open No. 8-8873, and the description thereof is omitted. The blades 13 of the moving impeller 15 are structured to force one of the axial directions of the rotation axis of the motor 17 through the suction opening 19 to suck out the airflow on the side of the base 7 from the diameter direction of the rotation axis of the motor 17. Of course, because this fan is an axial fan, a part of the attracted air current flows in the axial direction (toward the base 7). The housing 21 is provided with a width direction of the opposing wall portion 21 facing the surface of the radiator 3 and a width direction of the opposing wall portion 21A (a direction orthogonal to the long slit direction of the opposing wall portion 21A). The two edge portions extend on one of the side walls 2 1 B and 2 1 C of the heat sink 3, and in the direction separated by the heat sink 3, extend from the opposite wall portion 2 1 A. The annular wall portion 21D of the opening portion 19. The side wall portions 21B and 21C of the casing and the side wall portions 9 A and 9 B of the heat sink 3, in the state where the two are combined, form two outlet openings 25 and 2 on both sides in the longitudinal direction. 7. Between the end of the casing 2 1 side of the heat dissipation fins 1 1 a ... and 1 1 b ... and the opposing wall portion 21A of the casing 21, a continuous discharge port is formed from one outlet to the other Extending air flow space 28. The airflow emitted by the rotating blades passes through the heat sink_sheet lla ···] ^ This paper size applies to China National Standard (CNS) A4 specification (210X297 mm)-(Please read the precautions on the back before filling this page) Order
Lt 經濟部智慧財產局員工消費合作社印製 546802 A7 B7 五、發明説明（9 ) (請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 及 1 1 b…之周圍以及氣流流通空間2 8，由2個之吐出口 25以及27吐出。在此構造中，由風扇裝置5之葉片13… 吐出於馬達L 7之旋轉軸之直徑方向的氣流之一部份一邊 通過阻力少之氣流流通空間2 8內，一邊朝向2個之吐出 口 2 5以及2 7流動，在其中途，一邊使複數之散熱鰭片 1 lb…有效率地冷卻，一邊由2個之吐出口 25以及27被 吐出，又氣流通過複數之分隔縫隙1 0…而流出外部，冷 卻被分隔之散熱鰭片1 la…。又，由軸流風扇裝置5之葉 片1 3…吐出於馬達1 7之旋轉軸之軸線方向而碰到散熱器 3之基部7之氣流的一部份一邊通過形成在鄰接之2片之 散熱鰭片1 1 b…之間之複數之流路，一部份一邊進入氣流 流通空間28內，由2個之吐出口 25以及27被吐出。藉 由氣流流通空間2 8之存在，流路阻力下降以及主要爲前 述之3種類之氣流之流動混合存在的相乘作用，冷卻效率 提升。在圖4以箭頭顯示由散熱器3流出之氣流之流動。 即如比較殘留基部7之一部份在複數之散熱鰭片11 b…全 體形成分隔縫隙10之情形，以及如此實施形態般，在複 數之散熱鰭片1 1 b…不形成分隔縫隙1 0之情形之冷卻效 率，確認到本實施形態之情形冷卻效率約提升6%。 如圖2所示，被嵌合於形成在一對之散熱器側壁部 9A以及9B之兩端之2個之縫隙部12、12之定位嵌合用 突出部24、24被設置在機殼21之一對之機殼側壁部21 B 、2 1C而與其成爲一體。又，與定位嵌合用突出部24、24 鄰接，構成2個之繫合部之鉤部份22、22…也設置在機 -12- 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） 546802 A 7 B7 五、發明説明（1G ) (請先閲讀背面之注意事項再填寫本頁) 殼側壁部2 1 B、21C而與其成爲一體（參考圖3 )。這些 之鉤部份22 ···由一對之機殼側壁部2 1 B、2 1 C朝向散熱器 3側延伸，排列設置在鄰接之定位嵌合用突出部24、24。 分別在長度方向留有間隔設置在一對之機殼側壁部2 1 B、 21C之2個之鉤部份22、22在散熱器3與機殻21被組合 之狀態下，位於散熱器側壁部9A或9B之內側而且比機 殼側壁部21B、21C之其它部份還位於寬度方向之內側地 被形成。其結果爲：在機殼21之機殼側壁部2 1 B、21C 中’凹部2 1久被形成在分別對應鉤部份22之部份。如圖 3所示’各鉤部份22具有繫合面22b朝向寬度方向之外 側延伸之形狀。各鉤部份22之繫合面22 b與設置在前述 之散熱器3之：一對之散熱器側壁部9A以及9B之被繫合 面9An以及9B21繫合，機殼21可被取下地安裝在散熱器 3 °此定位嵌合用突出部24與鉤部份（繫合部）22之間 之位置關係，被決定爲在定位嵌合用突出部24被嵌合於 位於兩側之縫隙部1 2之狀態下，鉤部份之繫合面22 b與 被繫合面9A21以及9Bn成爲繫合狀態。 經濟部智慧財產局員工消費合作社印製 說明以手工作業於散熱器3安裝機殼2 1之情形。首 先’以作業貝之兩手之姆指以及食指夾住位於分別各2個 被設置於一對之機殻側壁部2 1 B以及2 1 C之定位嵌合用 突出部24之上之部份21B (圖1、圖2 )，而且，使相面 對之一對之部份2 1 B互相接近，在一對之機殼側壁部2 1 B 以及21C施力。在此狀態，使機殻21接近散熱器3側， 將定位嵌合用突出部24插入縫隙部12。此時，將機殼21 -13- 本紙張尺度適用中國國家標準（CNS)A4規格（210X297公釐） 546802 A7 B7 五、發明説明（11 ) (請先閲讀背面之注意事項再填寫本頁) 之鉤部份22 ···插入散熱器之一對之散熱器側壁部9 A以及 9 B之內側。而且’插入後，解除施加在各一對之機殼側 壁部之力量。藉由此一連串之動作，可以使機殻21之鉤 部份22…之繫合面22 b繫合於散熱器3之被繫合面9A21 以及9B21。又，在解除繫合之情形，使一對之機殼側壁部 之相面對部份21 B互相接近，維持此狀態，使機殼21由 散熱器3側分離，可以解除機殼21之鉤部份22之繫合面 22 b與散熱器3之被繫合面9A21以及9Bn之繋合。如依 據此實施形態，定位嵌合用突出部24被嵌合在縫隙部， 構成防止拔出之構造之故，即使於機殻2 1以及散熱器3 之一方施加押出方向之力量，機殼21之繫合部與散熱器 3之被繫合部也不會分離。 經濟部智慧財產局員工消費合作社印製 圖5以及圖6係顯示本發明之電子零件冷卻裝置之第 2實施形態的軸流風扇裝置5以及散熱器1 03之組合狀態 例的正面圖。於這些圖中，在與圖1至圖4所示構件相同 之構件，賦予與圖1至圖4所賦予之標號相同之標號，省 略其說明。在此實施形態中，散熱器1 〇3係使用一對的散 熱器側壁部 109A之長度比機殻21之一對之機殼側壁部 21B之長度還長者。在一對之散熱器側壁部109A可以變 更軸流風扇裝置5安裝在散熱器103之位置的，縫隙部 2 1橫跨比機殼側壁部2 1 B之長度還長範圍而形成在散熱 器103。如此一來，可以配合被裝置在散熱器之基部裏面 之電子零件的發熱源以定位軸流風扇裝置，能夠更提升冷 卻效率。 -14- 本紙張尺度適用中國國家標導（CNS ) A4規格（21〇><297公釐） 546802 A7 B7 五、發明説明（12 ) (請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 圖7以及圖8係以軸流風扇裝置5爲方塊顯示本發明 之第3實施形態之電子零件冷卻裝置之正面圖以及側面圖 ，圖9係顯示裝置風扇裝置5前之散熱器203之平面圖。 於圖9中，箭頭係顯示由風扇裝置5吹向散熱器203，由 散熱器流出之氣流流之流出方向。又，於圖7至圖9中， 在與構成第1實施形態之部份相同之部份，賦予在說明第 1實施形態用之圖所附之標號的數目加上200之數目之標 號，省略其說明。即，2 1 1係散熱鰭片。在此實施形態中 ，在散熱器2 03之基部207之裏面接合將由比形成基部 207之材料熱傳導性還優異之材料（例如，銅）所形成之 良好熱傳導板 204，以使由熱源之電子零件MPU至少對 形成分隔縫隙210之基部207之部份傳達熱。如此一來， 由電子零件產生之熱可以迅速傳達於散熱器203之溫度低 之部份之故，可以更提高散熱效率。在此例中，散熱器 203之基部2〇7之底面與良好熱傳導板204之外周部之間 形成空隙G，以使基部207之形成分隔縫隙2 10…之部份 的厚度比其它部份還薄。其結果爲··藉由由分隔縫隙2 1 0 …流出之氣流，可以充分冷卻良好熱傳導板204之外周部 (在此例中，爲寬度方向之兩端部），與設置良好熱傳導 板相輔，可以更提高冷卻效率。 又，也可以使散熱器203之基部207之厚度均勻。在 如此之情形，成爲以良好熱傳導板204塞住分隔縫隙2 1 0 之開口部之底部側之開口部份。在此情形，露出此開口部 份之良好熱傳導板204之部份也被以風扇裝置5來之氣流 -15- 本紙張尺度適用中國國家標牟（CNS ) A4規格（210X297公釐） 546802 A7 B7 五、發明説明（13 ) (請先閲讀背面之注意事項再填寫本頁) 所冷卻之故，冷卻效率提升。又即使使良好熱傳導板204 成爲不超過分隔縫隙2 1 0之形成位置之程度之小尺寸’也 可以提升冷卻效率。 又，在散熱器203形成分隔縫隙，提升冷卻效率之技 術思想，也當然可以適用在以與上述之實施形態不同之方 法，將風扇裝置固定於散熱器之情形。圖1 〇係只由散熱 器303之一方之散熱器側壁部309A之外側形成分隔縫隙 310…者。在此例中，分隔縫隙310對應被形成之位置而 改變長度。爲何呢？未與動葉輪之葉片相面對之區域幾乎 成爲圓形形狀之故，如不進入此區域地形成任意長度之分 隔縫隙2 1 0，分隔縫隙之長度便不同之故。即’隨著接近 散熱器303之長邊方向之兩端部，分隔縫隙310之長度可 以變長。換言之，隨著接近散熱器3 03之長邊方向之中央 部，分隔縫隙310之長度必須變短。於圖10中，與圖9 相同地，箭頭係顯示由風扇裝置5吹向散熱器3 0 3，由散 熱器流出之氣流之流出方向。 經濟部智慧財產局員工消費合作社印製 在上述例中，雖然藉由押出成形以形成散熱器預備成 形品，但是不用說也可以藉由鑄造等之其它之成形法以形 成預備成形品。 【發明之效果】 如依據本發明，通過複數之縫隙部’可以使風扇裝置 產生之氣流流流通之故，不單可以提高冷卻效率’也構成 在縫隙部與設置在機殼側壁部之定位嵌合用突出部嵌合而 -16- 本紙張尺度適用中國國家標準（CNS)A4規格（210X297公釐） 546802 A7 B7 五、發明説明（14 ) (請先閱讀背面之注意事項再填寫本頁) 防止分開之構造之故，可以獲得即使在機殼以及散熱器之 一方於使兩者滑動之方向施加力量，兩者之繫合也不會被 解除之效果。特別是，如使散熱器之一對之散熱器側壁部 之長度比機殼之一對之機殻側壁部之長度還長，在一對之 散熱器側壁部可以變更風扇裝置安裝於散熱器之位置的， 橫跨比機殼側壁部之長度還長之範圍形成縫隙部，可以配 合被裝置在散熱器之基部裏面之電子零件的發熱源以決定 風扇裝置之位置，能夠更提升冷卻效率。 【圖面之簡單說明】 圖1係本發明之電子零件冷卻裝置之實施形態之一例 之平面圖。 圖2係圖1之電子零件冷卻裝置之正面圖。 圖3係圖1之電子零件冷卻裝置之左側面圖。 圖4係可以使用於圖1之實施形態之散熱器之平面圖 〇 經濟部智慧財產局員工消費合作社印製 圖5係顯示本發明之電子零件冷卻裝置之第2實施形 態之軸流風扇裝置與散熱器之組合狀態之一例之正面圖。 圖6係顯示本發明之電子零件冷卻裝置之第2實施形 態之軸流風扇裝置與散熱器之組合狀態之其它例之正面圖 〇 圖7係將軸軸風扇裝置當成方塊顯示本發明之第3實 施形態之電子零件冷卻裝置之正面圖。 圖8係圖7之實施形態之側面圖。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -17- 546802 A7 B7 五、發明説明（15 ) 圖9係裝置圖7之實施形態之風扇裝置前之散熱器之 平面圖。 (請先閲讀背面之注意事項再填寫本頁) 圖10係只由一方之散熱器側壁部之外部形成分隔縫 隙之散熱器之平面圖。 【標號之說明】 1 :電子零件冷卻裝置， 3 :散熱器， 5:風扇裝置， 7 :基部， 9A、9B :散熱器側壁部， 11a、lib:散熱鰭片， 9 A 21、9 B 21 :被繫合面， 9 A 2 2、9 B 2 2 : f妄觸面， 1 0 :分隔縫隙， 12 :縫隙部， 13 :葉片， 1 5 :動葉輪， 經濟部智慧財產局員工消費合作社印製 17 :馬達， 19 :吸引用開口部， 21 :機殼， 2 1 A :對向壁部， 2 1 B、2 1 C :機殼側壁部， 22 :鉤部份， -18- 本紙張尺度適用中國國家標隼（CNS ) A4規格（210X297公釐） 546802 A7 B7 五、發明説明（16 ) 22 b :繫合面， 24 :定位嵌合用突出部， 5 8 2 2 ， 間口 空出通 吐流 : 流 2 氣 (請先閱讀背面之注意事項再填寫本頁) 經濟部智慈財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） -19-Printed by the Consumers 'Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 546802 A7 B7 V. Description of the Invention (9) (Please read the notes on the back before filling this page) Printed by the Intellectual Property Bureau of the Ministry of Economics' Consumer Cooperatives and 1 1 b ... of The surroundings and the air flow space 28 are discharged from the two outlets 25 and 27. In this structure, a part of the airflow in the diameter direction of the rotation shaft of the motor L7 is ejected by the blades 13 of the fan device 5 while passing through the airflow circulation space 2 8 with little resistance, and is directed toward the two outlets 2 5 and 27 flow, and in the middle, while cooling the plurality of heat dissipation fins 1 lb ... efficiently, while being discharged from the two outlets 25 and 27, the air flows out through the plurality of separation gaps 1 0 ... Externally, the partitioned cooling fins 1 la ... In addition, a part of the airflow from the axial direction of the axial axis of the rotating shaft of the motor 17 and the blades 1 3 of the axial fan device 5 passes through the heat radiation fins formed on two adjacent ones. Part of the plurality of flow paths between the pieces 1 1 b ... enters the air flow circulation space 28 on one side, and is discharged from the two outlets 25 and 27. By the existence of the air flow circulation space 28, the multiplication effect of the flow path resistance reduction and the three types of air flow mixtures mentioned above, the cooling efficiency is improved. The flow of the airflow from the radiator 3 is shown by arrows in FIG. 4. That is, if a part of the remaining base 7 is formed in the plurality of heat radiation fins 11 b ... and the whole is formed with a separation gap 10, and in this embodiment, the plurality of heat radiation fins 1 1 b ... are not formed in the plurality of heat radiation fins 1 1 b ... In the case of the cooling efficiency, it is confirmed that the cooling efficiency in the case of this embodiment is increased by about 6%. As shown in FIG. 2, positioning fitting projections 24, 24 that are fitted in two slit portions 12, 12 formed at both ends of a pair of heat sink side wall portions 9A and 9B are provided in the housing 21. The pair of casing side wall portions 21 B and 21C are integrated with each other. In addition, the hook portions 22, 22, which are adjacent to the positioning and fitting projections 24, 24, and constitute two coupling portions, are also provided on the machine-12.-This paper size applies the Chinese National Standard (CNS) A4 specification (210X 297). (Mm) 546802 A 7 B7 V. Description of the invention (1G) (Please read the precautions on the back before filling out this page) The side walls of the case 2 1 B, 21C are integrated with it (refer to Figure 3). These hook portions 22 are extended from the pair of cabinet side wall portions 2 1 B and 2 1 C toward the heat sink 3 side, and are arranged adjacently to the positioning and fitting projections 24 and 24. Two hook portions 22 and 22 are provided in the longitudinal direction and spaced apart from each other in a pair of case side wall portions 2 1 B and 21C. The heat sink 3 and the case 21 are combined and located on the side wall portion of the heat sink. 9A or 9B is formed on the inner side in the width direction from the other parts of the casing side wall portions 21B and 21C. As a result, the 'recessed part 21' in the side wall parts 2 1 B, 21C of the case 21 is formed in the portions corresponding to the hook portions 22, respectively. As shown in FIG. 3 ', each of the hook portions 22 has a shape in which the engaging surface 22b extends outward in the width direction. The engaging surface 22 b of each hook portion 22 is engaged with the engaging surfaces 9An and 9B21 of the radiator side wall 9A and 9B provided in the aforementioned heat sink 3: The pair of casings 21 can be removed and installed. The positional relationship between the positioning-fitting projection 24 and the hook portion (engagement portion) 22 at the heat sink 3 ° is determined so that the positioning-fitting projection 24 is fitted into the slits on both sides 1 2 In this state, the engaging surface 22 b of the hook portion and the engaged surfaces 9A21 and 9Bn are engaged. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. First, sandwich the portion 21B located on the positioning and fitting projections 24 of the two side walls 2 1 B and 2 1 C of the casing provided with a pair of thumbs and index fingers of the working shell. (Figures 1 and 2), and a pair of facing parts 2 1 B of each pair are brought close to each other, and a force is applied to the side wall parts 2 1 B and 21C of the pair. In this state, the housing 21 is brought close to the radiator 3 side, and the positioning and fitting projection portion 24 is inserted into the slit portion 12. At this time, the case 21 -13- This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) 546802 A7 B7 V. Description of the invention (11) (Please read the precautions on the back before filling this page) The hook portion 22 is inserted into the inside of the heat sink side portions 9 A and 9 B of one of the pair of heat sinks. Furthermore, after the insertion, the force applied to the side wall portions of the casing of each pair is released. With this series of actions, the engaging surface 22 b of the hook portion 22 of the casing 21 can be engaged with the engaging surfaces 9A21 and 9B21 of the radiator 3. In addition, in the case of uncoupling, the facing portions 21 B of the side walls of a pair of cabinets are brought close to each other, maintaining this state, the cabinet 21 is separated from the radiator 3 side, and the hook of the cabinet 21 can be released The binding surface 22 b of the portion 22 is combined with the binding surfaces 9A21 and 9Bn of the radiator 3. According to this embodiment, the positioning-fitting protruding portion 24 is fitted into the gap portion to constitute a structure to prevent pull-out. Even if a force in the extrusion direction is applied to one of the housing 21 and the radiator 3, the housing 21 The engaging portion and the engaged portion of the heat sink 3 are not separated. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Figs. 5 and 6 are front views showing examples of the combined state of the axial fan device 5 and the radiator 103 in the second embodiment of the electronic component cooling device of the present invention. In these figures, the same components as those shown in Figs. 1 to 4 are given the same reference numerals as those shown in Figs. 1 to 4 and their explanations are omitted. In this embodiment, the heat sink 103 uses a pair of radiator side wall portions 109A which are longer than the length of one of the casings 21 and the casing side wall portions 21B. In the pair of radiator side wall portions 109A, the position where the axial flow fan device 5 is mounted on the radiator 103 can be changed. The slit portion 21 is formed in the radiator 103 across a length longer than the length of the casing side wall portion 2 1 B. . In this way, the axial flow fan device can be positioned in cooperation with the heat source of the electronic parts installed in the base of the radiator, which can further improve the cooling efficiency. -14- This paper size applies to China National Standards (CNS) A4 specifications (21〇 > < 297 mm) 546802 A7 B7 V. Description of the invention (12) (Please read the precautions on the back before filling this page) Figures 7 and 8 printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs show the front view and side view of the electronic component cooling device of the third embodiment of the present invention with the axial fan device 5 as a block, and Figure 9 shows the fan of the device Plan view of radiator 203 in front of device 5. In Fig. 9, the arrow indicates the direction of the airflow flowing from the radiator toward the radiator 203 by the fan device 5. In addition, in FIGS. 7 to 9, the same parts as those constituting the first embodiment are given the number of the number attached to the drawing for explaining the first embodiment plus the number of 200, and the description is omitted. Its description. That is, 2 1 1 is a heat radiation fin. In this embodiment, a good heat conduction plate 204 formed of a material (for example, copper) having a higher thermal conductivity than the material forming the base portion 207 is bonded to the base portion 207 of the heat sink 203, so that the electronic components made of heat source The MPU transfers heat to at least a portion of the base 207 forming the separation gap 210. In this way, the heat generated by the electronic components can be quickly transmitted to the low-temperature portion of the heat sink 203, which can further improve the heat dissipation efficiency. In this example, a gap G is formed between the bottom surface of the base portion 207 of the heat sink 203 and the outer periphery of the good heat conductive plate 204, so that the thickness of the portion of the base portion 207 forming the separation gap 2 10 ... is greater than the other portions. thin. As a result, the outer periphery of the good heat conductive plate 204 (in this example, both end portions in the width direction) can be sufficiently cooled by the airflow flowing out of the separation gap 2 1 0... , Can further improve cooling efficiency. In addition, the thickness of the base portion 207 of the heat sink 203 may be made uniform. In such a case, the opening portion on the bottom side of the opening portion of the partition gap 2 10 is blocked by the good heat conductive plate 204. In this case, the part of the good heat conductive plate 204 exposing the opening part is also airflow from the fan device 5-This paper size applies to China National Standards (CNS) A4 specifications (210X297 mm) 546802 A7 B7 V. Description of the invention (13) (Please read the precautions on the back before filling this page) The cooling efficiency is improved. Further, even if the good heat conductive plate 204 is made to a small size that does not exceed the formation position of the partition gap 2 10, the cooling efficiency can be improved. In addition, the technical idea of forming a separation gap in the radiator 203 to improve the cooling efficiency can of course also be applied to a case where the fan device is fixed to the radiator by a method different from the above-mentioned embodiment. FIG. 10 shows a partition gap 310 formed by only the outer side of the heat sink side wall portion 309A of the heat sink 303. In this example, the separation slit 310 is changed in length corresponding to the position where it is formed. Why? The area that does not face the blades of the moving impeller almost becomes a circular shape. If it does not enter this area to form a gap of any length 2 1 0, the length of the gap is different. That is, as the two end portions in the longitudinal direction of the heat sink 303 are approached, the length of the separation slit 310 may become longer. In other words, as the central portion in the longitudinal direction of the heat sink 303 is approached, the length of the separation slit 310 must be shortened. In FIG. 10, as in FIG. 9, the arrows indicate the outflow direction of the airflow blown from the fan device 5 to the radiator 3 0 3 and from the radiator. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs In the above example, although the preform is formed by forming the radiator by extrusion, it goes without saying that the preform can be formed by other forming methods such as casting. [Effects of the Invention] According to the present invention, through the plurality of slits, 'the airflow generated by the fan device can be circulated, and not only the cooling efficiency can be improved,' but also the positioning and fitting of the slits and the side walls of the casing is provided. -16- This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) 546802 A7 B7 V. Description of the invention (14) (Please read the precautions on the back before filling this page) Prevent separation Due to the structure, even if force is applied to one of the casing and the radiator in a direction in which the two slide, the coupling between the two is not released. In particular, if the length of a pair of radiator side walls is longer than the length of a pair of enclosure side walls, the side wall of a pair of radiators can be changed to install the fan device on the radiator. In the position, a gap portion is formed across a range longer than the length of the side wall portion of the cabinet, which can cooperate with the heat source of the electronic parts installed in the base of the radiator to determine the position of the fan device, which can further improve the cooling efficiency. [Brief description of the drawing] Fig. 1 is a plan view showing an example of an embodiment of an electronic component cooling device of the present invention. FIG. 2 is a front view of the electronic component cooling device of FIG. 1. FIG. FIG. 3 is a left side view of the electronic component cooling device of FIG. 1. FIG. Figure 4 is a plan view of a radiator that can be used in the embodiment of Figure 1. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Figure 5 is a diagram showing an axial flow fan device and heat dissipation of the second embodiment of the electronic component cooling device of the present invention. Front view of an example of the combined state of the device. Fig. 6 is a front view showing another example of the combined state of the axial flow fan device and the radiator of the second embodiment of the electronic component cooling device of the present invention. Fig. 7 is a view showing the third embodiment of the present invention with the axial fan device as a block. Front view of the electronic component cooling device of the embodiment. Fig. 8 is a side view of the embodiment of Fig. 7; This paper size applies the Chinese National Standard (CNS) A4 specification (210X 297 mm) -17- 546802 A7 B7 V. Description of the invention (15) Figure 9 is a plan view of the radiator in front of the fan device of the embodiment shown in Figure 7. (Please read the precautions on the back before filling out this page.) Figure 10 is a plan view of a heat sink where a separation gap is formed only on the outside of one side wall of the heat sink. [Description of reference numerals] 1: electronic component cooling device, 3: radiator, 5: fan device, 7: base, 9A, 9B: radiator side wall portion, 11a, lib: heat sink fin, 9 A 21, 9 B 21 : Bound surface, 9 A 2 2, 9 B 2 2: f-contact surface, 1 0: separation gap, 12: gap portion, 13: blade, 1 5: moving impeller, Intellectual Property Bureau, Ministry of Economic Affairs, Consumer Consumption Cooperative Printed 17: Motor, 19: Suction opening, 21: Case, 2 1 A: Opposing wall, 2 1 B, 2 1 C: Side wall of the case, 22: Hook, -18- Paper size applies to China National Standard (CNS) A4 (210X297 mm) 546802 A7 B7 V. Description of the invention (16) 22 b: Binding surface, 24: Positioning protrusion for positioning and fitting, 5 8 2 2 Spit flow: flow 2 gas (please read the notes on the back before filling out this page) Printed by the Employee Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper is sized for the Chinese National Standard (CNS) A4 (210X297 mm) -19 -