1317198 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種全閉外 機外的外扇風扇(fan)冷卻密閉二：電動機，其係以配置在 機内的内扇風扇（fan)冷卻轉子。、内之定子，再以配置在 【先前技術】 在習知的全閉外扇形電動 侧之外扇風扇（fan)使冷卻風在=利用配置在反驅動 流通以冷卻定子，並於密閉的機广子的第1通風路中 '乳在形成於轉子鐵心的第2通風路、以 ()：二 的第3通風路循環。藉此，機内 ":^ •路的過程中與通過第i通:【二在:=3通風 (例如，參照專利文獻υ。的4 —換而冷卻 [專利文獻1]日本㈣⑽叫侧9號 —圖、第4圖） ^ —修【發明内容】 (發明所欲解決之課題) 在習知的全閉外扇形電動機中，配置於外扇風扇（fan) 側的軸承的熱’係利用使外扇風扇（fan)發揮冷卻體之功能 來進行冷卻’但因配置在外扇風扇（fan)相反侧之驅動側的 軸承不易冷卻，因此會產生導致軸承潤滑油（grease)劣化的 問題。 本發明係為了解決上述問題而研創者，其目的在提供 種了&升配置在驅動側之軸承的冷卻效果的全閉外扇形 5 317678 1317198 使之與上述轉子鏺心、？ 士口斗丄& ^ 在上述定子鐵心11配置有 、、’ ^ 另外，在上述定子鐵心n，複數個通風路 & 1 lb係朝著上述旋轉軸1的軸方向交互配置於外周。 此外疋子13係以上述定子鐵心u與上述定子捲線u 所構成。上述通風路lla係藉由導管14a、i4b與設在上述 框架（frame)10的外氣孔l〇a、l〇b相連通。 配置在上述旋轉軸1之反驅動侧lib之機外的外扇風 扇（fan)15係與旋轉軸卜體結合。設置風扇（fan)護罩 (cover)16’使經由上述外扇風扇伽）15之旋轉產生的風的 流動經由上述導管14誘導至上述通風路n。此外，設有 位於支撐上述旋轉軸丨之驅動侧la的上述軸承7的機外側 且位於該軸承7之附近與上述旋轉軸丨一體結合的散熱體 Π。該散熱體Π係以：與上述旋轉軸丨形成同心狀之圓盤 狀的板狀部17a;突出於上述軸承7之相反側（亦即突出於 驅動侧）與旋轉軸1形成同心狀的複數個環狀的冷卻片17b 所構成。上述複數個環狀冷卻片17b係如圖所示，分別構 成不同的内徑，而在各冷卻片17b之間，爲提升冷卻效果， 係形成有預定之間隙g。 在以上述方法構成之全閉外扇形電動機中，以上述兩 托架（bracket)6、8以及上述框架（frame) 1 〇密閉之機内的空 氣，如反白之箭號A所示，係利用上述内扇風扇（fan)5在 上述通風路2a、lib的路徑中循環。另一方面，在風扇（fan) 護罩（cover) 16内，經由上述外扇風扇（fan)丨5擷取的空氣， 係如反白之箭號B所示，在外氣孔i〇a_通風路lla_外氣孔 317678 8 、1317198 l〇b之路值流通時，會與流通於鄰接之通風路m的高溫 勺枝内的二氣進行熱父換，而流通於通風路1 lb的高溫的 機内的空氣，則如箭號B所示經由流通的空氣散熱到機外。 、此外’在反驅動側lb中經由上述轉子4產生的熱會由 上述旋轉軸1經由上述外扇風扇（fan)15散熱。此外，在驅 ·.動側la由上述轉子4產生的熱則是經由上述旋轉轴^而由 上述散熱體17散熱。同樣地，上述驅動側的軸承7也是經 鲁由上述旋轉軸4由上述散熱體散熱。上述散熱體π係 :伴隨著轉子4的旋轉與上述旋轉軸1同時進行旋轉，因此 “可利用離心力，如箭號c所示，、沿著上述散熱體17之驅 '動侧的側面17c以及反驅動側的側面17d，產生以上述散 熱體17之旋轉中心為中㈣放射狀氣流，並藉由該氣流使 上述散熱體17冷卻，因此可使上述驅動側的軸承7的溫度 下降此外，未设置上述散熱體17時，同樣會因產生以上 述散熱體17之旋轉中心為中心的放射狀氣流，而在滯留於 •鲁上述驅動侧之軸承7之驅動側的暖空氣中產生流動，進而 使上述驅動側的軸承7的溫度下降。亦即，上述驅動側的 軸承7係經由上述旋轉軸丨由散熱體17散熱，並利用以散 熱體17之旋轉令心為中心的放射狀氣流進行散熱，而有效 率地冷卻。 如上所述，係藉由在支撐上述旋轉軸丨之驅動側u ’的上述軸承的機外侧設置位於上述軸承附近與上述旋轉軸 .安裝為一體的上述散熱體17’而得以提升支撐上述驅動側 la之軸承7的冷卻效果。此外，若在上述散熱體17形成 317678 9 -1317198 與上述旋轉軸1形成同心狀之上述冷卻片17b時，即可增 加上述政熱體17的散熱面積，並進一步提升冷卻效果。 實施形態2 第3圖為用以實施本發明之實施形態2之全閉外扇形 電動機的剖視圖，第4圖（&)係顯示第3圖之要部的前視 圖，第4圖（b)係由箭頭方向觀看第4圖0)之IV_IV線之剖 -書面時的°彳視圖，第4圖（c)為後視圖。此外，在第3圖及第 圖中相同部分係標示相同符號’此外，與上述第1圖 及第2圖相同或相當的部分亦標示相同的符號。以下，係 以與上述本發明之實施形態丨相異的點為主，來說明本發 •明之實施形態2，其他相關部分則省略其說明。 在第3圖以及第4圖中，散熱體17係在支撐旋轉轴工 的驅動側la之軸承7的機外侧於軸承7的附近與上述旋轉 軸1 一體結合。此外，與上述本發明之實施形態丨相同， 籲上述散熱體17係由：配置在支撐上述旋轉軸i之上述驅動 侧la的上述軸承7侧，與上述旋轉軸丨形成同心狀之圓盤 狀的板狀部17a ;以及在上述軸承7的相反側由上述圓盤 狀之板狀部17a朝上述旋轉軸〗的方向突出而與上述旋轉 軸1形成同心狀之圓環狀的複數個冷卻片17b所形成。此 外，在本發明之實施形態2中，係在上述圓盤狀之板狀部 17a設置複數個流通路17e，使空氣得以如箭頭D所示由 上述冷卻片17b側流通於上述軸承7側。上述複數個流通 路17e係由··在上述散熱體17的反驅動側，朝著與上述旋 317678 10 1317198 轉軸1分離的方向延伸且一端朝 m間之魏㈣§所形成。此;^域各Κ環狀冷卻片 與上述空隙間g係呈連:：二上述複數個溝部％ 跨越貫穿該驅動側的…=二述散熱體係具有 貫穿孔17e。 ，、反艇動侧的面m的複數個 在以上述方式構成之全料扇㈣動財，當上述散 熱體η隨著轉子4之旋轉而轉動時，上述各溝部 π’…内的空氣會由内周侧放出至外周侧（亦即，朝著由上 =旋轉軸i以放射狀分離的方向）放出，上述驅動侧托架 (braeket)6與上述散熱冑17間之空氣亦由上述散孰體η μ㈣放出至外㈣’驅動側的冷线會由上述 散熱體17,如箭頭D所示，由上述各冷卻片i7b、i7b，… 間的上述間隙g、g，.·.流人，並經由上述各溝部％、口g，... 流入上述驅動侧托架（bracket%與上述散熱體17之間，’而 使上述散熱體17以及上述驅動側的㈣7，比上述本發明 之實施形態1獲得更有效的冷卻。 實施形態3 第5圖係用以實施本發明之實施形態3之全閉外扇形 電動機的職圖。此外，在第5圖中，與上述f丨圖至第 4圖相同或相當的部分係標示相同符號，以下，係以與上 述本發明之實施形態1及實施形態2相異的點為主，來說 明本發明之實施形態3，其他相關的部分則省略其說明。 317678 11 1317198 及第7圖中’與上述第i圖至第4圖相同或相當的部分係 標不相同符號。以下’係以與上述本發明之實施形態！至 實施形態3相異的點為主’來說明本發明之實施形態4， 其他相關部分則省略其說明。 在第6圖以及第7圖中，在上述散熱體17的反驅動側 〜的上述各溝冑i7g的底部，配設使上述散熱體^貫穿上述 -旋轉軸1的延伸方向且徑向的尺寸較上述冷卻片⑺間的 •上？空隙g大的貫穿孔17h。而且，上述貫穿孔nn -的每一個均貫穿徑向内側的環狀冷卻片17b。 纟以上述方式構成之全閉外扇形電動機中，當上述散 熱體17隨著上述韓+ 4沾女4；忐由f上本/ 、轉于4的碇轉而轉動時，與上述第4圖相 .同，如箭頭D所示，上述散熱體17之驅動侧的冷空氣會 通過上述複數個貫穿孔17h、17h...，且通過上述各冷卻片 17b、17b…間的上述複數個空隙 隙g、g…以及上述反驅動側 、不固/邛17g、l7g ’ ’而流入上述驅動侧托架 • (一)6與上述散熱體17間的空間，該空氣量係藉由設 置但向尺寸比上述冷各卩g， 月17b間的上述空隙g大且貫穿徑 向内側之環狀冷卻片丨7h Μ, 邠月17b的设數個上述貫穿孔17h、 m...’而大於上述第4圖之實例。因此，上述散敎體i7 以及上述驅動側的轴承7，相較於上述第4圖之 能夠有效地冷卻。 盤狀之板狀部1 7a之軸承 的面）1 7c的上述貫穿孔 侧而以放射狀配設在上述 此外，設有：由位於上述圓 7側之相反側的面（亦即驅動側 17h、17h...，位於上述旋轉軸1 317678 14 -1317198 圖’第9圖（b)為第9圖⑻之IX-IX線的剖視圖，第9圖（c) • 為後視圖。此外，在第8圖以及第9圖中，與上述第1圖 至第7圖相同或相當的部分係標示相同符號。以下，係以 與上述本發明之實施形態1至實施形態4相異的點為主， 來說明本發明之實施形態5’其他相關部分則省略其說明。 〜 在第8圖以及第9圖中，散熱體17的驅動側的面丨7c， .·並未設置上述本發明之實施形態1至實施形態4的冷卻片 ，肇17b而呈扁平面。此外，在上述散熱體17的反驅動侧的面 ；17d’與上述第4圖以及第7圖相同，設有複數個溝部17g、 ;17g…，在該溝部17g、17g…的各底部（靠近上述旋轉軸1 "的部分）’則設有上述貫穿孔Ph。此外，本發明之實施# .態5的上述貫穿孔17h、17h·..係如圖所示，在上 1之延伸方向所觀察的形狀為圓形，可進行單純的穿孔加 -工。此外，如箭頭D所示，貫穿上述散熱體17而由驅動 -側朝反驅動側流通之空氣的流通路17e係由··上述複數個 ♦溝部17g、17g···及上述複數個貫穿孔17h、m.•所形成。 在本發明之實施形態5中，上述散熱體17的驅動側的 面、1〜，並未配設上述本發明之實施形態i至實施形態4 的冷W 17b而呈扁平面’藉由設置多數個上述溝部 及上述貝穿孔17h，如箭頭D所示，除了可充分確保貫穿 上述散熱體17而由驅動側朝反驅動側流通的空氣量，並確 保上述散熱體17的散熱面積，因此可達到製作簡單之目 的’並提昇上述散熱體17及上述驅動側的轴承7的冷卻效 317678 16 1317198 ， 實施形態6 第10圖為用以實施本發明之實施形態6之全閉外扇來 電動機的剖視圖，f n圖⑷係顯示第1〇圖之要部的前視 圖’第11圖（b)為第11圖⑷之XI-XI線的剖視圖，第u 二圖⑷為後視圖。此外’在第10圖以及第π圖中，與上述 第1圖至第9圖相同或相當的部分係標示相同符號。以下， ••係以與上述本發明之實施形態！至實施形態5相異的點為 •主，來說明本發明之實施形態6,其他相關部分則省略其 說明。 、 在第10圖以及第11圖中，係在散熱體17的驅動侧的 面17C設置以放射狀配設的驅動側的複數個第2溝部17卜 17ι··♦。藉由配設上述驅動側的複數個第2溝部1^、， 上述散熱體17之驅動側的冷空氣，可通過上述驅動側之複 數個第2溝部17i、17i..·、上述複數個貫穿孔17h、17h...、 .·上述各冷卻4 17b、17b.·.間的上述複數個空隙g、g···，以 及上述反驅動側的複數個溝部17g、17^·.，流入上述驅動 側托架（bracket%與上述散熱體17之間的空間，該空氣量 係大於本發明之實施形態5(第9圖），再加上藉由上述驅動 側之複數個第2溝部17i，17i，…之上述散熱體17而產生 放…、面積的擴大效果，上述散熱體17以及上述驅動側的 軸^ 7的冷卻效果，會比本發明之實施形態5更加提昇， 同π相車又於上述第！圖至第7圖，上述散熱體Η的製作也 更為簡單。 317678 17 ** 1317198 此外，上述驅動侧之複數個第2溝部ni、ni...如圖 所不，相較於上述反驅動侧之複數個溝部17g、17g...，其 徑向的長度均在靠近上述旋轉轴丨處形成為較大長度。藉 由該構成，利用上述散熱體17之旋轉而產生之空氣流的^ 會比上述本發明之實施形態5 (參照第9圖）的量更多。 --Λ •實施形態7 鲁 第12圖係用以實施本發明之實施形態7之全閉外扇形 -電動機的剖視圖。此外，在第12圖中，與上述第i圖至第 11圖相同或相當的部分係標示相同符號。以下，係以與上 述本發明之實施形態1至實施形態6相異的點為主，來說 '明本發明之實施形態7，其他相關部分則省略其說明。α 在本發明之實施形態7中，設有與機内之高溫空氣隔 離且圍繞上述驅動侧軸承7外周的隔熱空氣層19，該隔熱 '空氣層19係利用配設在上述驅動側軸承7附近的機内側的、 -鲁遮蔽板20，在與上述驅動側托架（bracket)6的一部份（鄰接 上述驅動側軸承7的部分）之間與機内形成密閉。因此，如 箭頭A所示高溫的機内空氣流’不會與上述驅動側轴承7 及部分驅動侧托架（bracket)6(鄰接上述驅動側軸承7的部 分）直接接觸。亦即，以上述方式構成之全閉外扇形電動 機，係利用上述内扇風扇（fan)5如箭頭A所示，防止所發 生之同的内氣猶環風直接加熱上述驅動側軸承7。 因此，藉由設置配設在上述驅動側軸承7附近之機内 側的遮蔽板20、以及利用該遮蔽板2〇與機内的高溫空氣 317678 18 * 1317198 •顯示第6圖之要部的前視圖，第7圖（b)為由箭頭方向觀看 第7圖（a)之VII-VII線的剖面時的剖視圖，第7圖（c)為後 第8圖係顯示本發明之實施形態5的圖，為全閉外扇 形電動機的剖視圖。 第9圖係顯示本發明之實施形態5的圖，第9圖為 顯示第8圖之要部的前視圖，第9圖(b)為由箭頭方向觀看 第9圖（a)之ιχ_ιχ線之剖面時的剖視圖，第9圖（e)為後視 圖。 ,第10圖係顯示本發明之實施形態6的圖，為全閉外扇 形電動機的剖視圖。 、第11圖係顯示本發明之實施形態6的圖，第u圖0) ，顯：第10圖之要部的前視圖’第u圖⑻為由箭頭方向 硯看第11圖（a)之XI-XI線之剖面時的剖視圖，第u圖⑷ 為後視圖。 y第12圖係顯示本發明之實施形態7的圖，為全閉外扇 形電動機的剖視圖。 之實施形態8的圖，為全閉外扇 la 驅動側 2 轉子鐵心 3 轉子導體 5 風扇（fan) 第13圖係顯示本發明 形電動機的剖視圖。 【主要元件符號說明】 1 旋轉軸 反驅動側 2a Mla ' Ub通風路 4 轉子 317678 1317198 6、8 托架 7 9 反驅動侧轴承 10 10a、 10b外氣孔 11 12 定子捲線 13 14a、 14b 導管 15 16 風扇護罩 17 17a 板狀部 17b 17c 散熱體17的驅動侧的面 17d 散熱體17的反驅動側的 17e 流通路（貫穿孔） 17f 17g 反驅動侧的溝部 17h 17i 驅動側的溝部 18 19 隔熱空氣層 20 21 通風孔 g 驅動侧轴承 框架 定子鐵心 定子 外扇風扇（fan) 散熱體 冷卻片 散熱體外周面 貫穿孔 風向導件（guide) 遮蔽板 冷卻片17b間的空隙1317198 IX. Description of the Invention: [Technical Field] The present invention relates to an external fan fan cooling and sealing motor: a motor that is cooled by an internal fan disposed in the machine . The inner stator is arranged in the [prior art]. Fans outside the conventional fully-closed outer fan-shaped electric side fan make the cooling air flow in the reverse drive to cool the stator, and the closed machine is widely used. In the first air passage of the child, the milk circulates in the second air passage formed in the rotor core and in the third air passage of (2). In this way, in the process of "in the machine", the process of passing through the first pass: [two in: = 3 ventilation (for example, refer to the patent document υ. 4 - for cooling [patent document 1] Japan (four) (10) called side 9 (Fig. 4, Fig. 4) ^ - [Review] (Problems to be Solved by the Invention) In the conventional fully closed outer fan motor, the heat of the bearing disposed on the fan side of the fan is utilized. The external fan (fan) functions as a cooling body to perform cooling. However, since the bearing disposed on the driving side opposite to the fan of the fan is not easily cooled, there is a problem that the bearing grease is deteriorated. The present invention has been made in order to solve the above problems, and an object of the present invention is to provide a fully closed outer fan shape 5 317678 1317198 which has a cooling effect of a bearing disposed on a driving side, and which is connected to the rotor core. In the above-described stator core 11, a plurality of air passages & 1 lb are alternately arranged on the outer circumference in the axial direction of the rotary shaft 1 in the stator core 11 described above. Further, the die 13 is constituted by the stator core u and the stator winding u. The air passages 11a communicate with the outer air holes l〇a, lb provided in the frame 10 by the ducts 14a and i4b. An external fan 15 disposed outside the machine on the counter drive side lib of the rotary shaft 1 is coupled to the rotary shaft. A fan cover 16' is provided to induce a flow of wind generated by the rotation of the outer fan finder 15 to the air passage n via the duct 14. Further, a heat sink body that is located outside the machine 7 supporting the drive side la of the above-described rotating shaft la and located in the vicinity of the bearing 7 and integrally coupled to the rotating shaft 设有 is provided. The heat dissipating body is a disk-shaped plate-like portion 17a that is concentric with the rotating shaft ;, and a plurality of discs that protrude from the opposite side of the bearing 7 (that is, protrudes from the driving side) and are concentric with the rotating shaft 1 The annular cooling fins 17b are formed. The plurality of annular cooling fins 17b are formed to have different inner diameters as shown in the drawing, and a predetermined gap g is formed between the cooling fins 17b for improving the cooling effect. In the fully closed outer fan motor constructed as described above, the air in the machine sealed by the two brackets 6, 8 and the frame 1 is as shown by the arrow A of the reverse white The fan 5 circulates in the path of the air passages 2a, lib described above. On the other hand, in the fan cover 16, the air drawn through the fan 丨5 is ventilated in the outer air hole i〇a_ as indicated by the arrow B of the reverse white. When the value of the road lla_outer air hole 317678 8 and 1317198 l〇b is distributed, the hot air is exchanged with the two air in the high temperature spoon of the adjacent ventilation path m, and the high temperature of the ventilation path is 1 lb. The air inside the machine is radiated to the outside of the machine via the circulating air as indicated by arrow B. Further, heat generated by the rotor 4 on the counter drive side 1b is radiated by the above-described rotating shaft 1 via the above-described external fan 15. Further, the heat generated by the rotor 4 on the driving side la is radiated by the heat radiating body 17 via the rotating shaft. Similarly, the drive side bearing 7 is also cooled by the heat radiating body by the rotating shaft 4. The heat radiating body π is rotated simultaneously with the rotating shaft 1 in accordance with the rotation of the rotor 4, so that "the centrifugal force can be used, as indicated by an arrow c, along the side surface 17c of the driving side of the heat radiating body 17, and The side surface 17d on the counter drive side generates a radial (four) radial air flow at the center of rotation of the heat sink 17, and the heat sink 17 is cooled by the air flow, so that the temperature of the drive side bearing 7 can be lowered. When the heat radiating body 17 is provided, a radial air current centering on the rotation center of the heat radiating body 17 is generated, and a flow is generated in the warm air that is held on the driving side of the bearing 7 on the driving side. The temperature of the drive-side bearing 7 is lowered. That is, the drive-side bearing 7 is radiated by the heat radiating body 17 via the rotating shaft, and is radiated by a radial airflow centering on the rotation of the heat radiating body 17. And cooling efficiently. As described above, the outer side of the bearing is disposed adjacent to the above-mentioned bearing by the outer side of the bearing supporting the driving side u' of the rotating shaft 与. The cooling effect of the bearing 7 supporting the driving side la is improved by the integral heat dissipating body 17'. Further, when the heat dissipating body 17 forms 317678 9 - 1317198, the cooling fin 17b which is concentric with the rotating shaft 1 is formed. The heat dissipation area of the above-mentioned political body 17 can be increased, and the cooling effect can be further improved. Embodiment 2 FIG. 3 is a cross-sectional view of a fully closed outer fan motor according to Embodiment 2 of the present invention, and FIG. 4 (&) The front view of the main part of Fig. 3 is shown, and Fig. 4(b) is a cross-sectional view of the IV_IV line of Fig. 4) viewed from the direction of the arrow, and the rear view of Fig. 4 (c) is a rear view. In the third embodiment, the same reference numerals will be given to the same parts in the drawings and the drawings, and the same or equivalent parts as those in the above-mentioned first and second figures are denoted by the same reference numerals. Embodiments of the present invention will be described with reference to the embodiment of the present invention, and the description of the other related portions will be omitted. In the third and fourth figures, the heat radiating body 17 is attached to the driving side of the supporting rotary shaft. The outer side of the bearing 7 is on the bearing 7 In the vicinity of the above-described rotating shaft 1 in the same manner as in the above-described embodiment of the present invention, the heat radiating body 17 is disposed on the side of the bearing 7 that supports the driving side la of the rotating shaft i, and the rotation The shaft 丨 is formed into a concentric disk-shaped plate-like portion 17a; and the disk-shaped plate-like portion 17a protrudes in the direction of the rotation axis on the opposite side of the bearing 7, and is formed concentrically with the rotating shaft 1 In the second embodiment of the present invention, a plurality of flow passages 17e are provided in the disk-shaped plate-like portion 17a to allow air to be as indicated by an arrow D. The cooling fin 17b side flows through the bearing 7 side. The plurality of flow passages 17e extend from the opposite driving side of the radiator 17, toward a direction separated from the rotating shaft 317678 10 1317198, and one end faces The formation of Wei (4) § between m. In this case, each of the ring-shaped cooling fins is connected to the g-space between the gaps: two of the plurality of groove portions spanning the driving side... The two heat-dissipating systems have through-holes 17e. The plurality of faces m on the moving side of the anti-boat move in the above-described manner. When the radiator η rotates with the rotation of the rotor 4, the air in each of the grooves π'... Released from the inner peripheral side to the outer peripheral side (that is, in a direction radially separated from the upper = rotational axis i), the air between the drive side bracket 6 and the heat sink 17 is also dispersed The body η μ (4) is discharged to the outside (four) 'the cold side of the driving side will be flown by the above-mentioned heat sink 17, as indicated by the arrow D, by the above gaps g, g, . . . between the respective cooling fins i7b, i7b, ... And flowing into the drive side bracket (between the bracket% and the heat sink 17) via the groove portions %, the port g, ..., and the heat sink 17 and the drive side (four) 7 are compared with the above-described present invention. Embodiment 1 obtains more effective cooling. Embodiment 3 Fig. 5 is a view showing a full-closed outer fan motor for carrying out Embodiment 3 of the present invention. Further, in Fig. 5, the above-mentioned f丨 to 4 The same or equivalent parts are denoted by the same symbols, and the following are related to the above In the first embodiment and the second embodiment, the third embodiment of the present invention will be described, and the other related portions will be omitted. 317678 11 1317198 and Fig. 7 'and the above i-th to fourth In the drawings, the same or corresponding portions are denoted by the same reference numerals. The following description is based on the embodiment of the present invention, and the points different from the third embodiment are described as the main embodiment, and the other related portions are omitted. In the sixth and seventh figures, the heat radiating body is inserted into the bottom of each of the grooves i7g of the counter-driving side of the heat radiating body 17 so as to penetrate the extending direction of the rotating shaft 1 and the radial direction. The through hole 17h having a larger size than the upper gap g between the cooling fins (7), and each of the through holes nn- penetrates the radially inner annular cooling fin 17b. In the sector motor, when the heat dissipating body 17 rotates with the above-mentioned Korean + 4 female 忐 4; 忐 from f up/down to 4, similar to the above-mentioned fourth figure, as indicated by an arrow D The cold air on the driving side of the heat sink 17 passes through The plurality of through holes 17h, 17h, ... are flowed through the plurality of gaps g, g, ... and the counter drive side, not fixed / 邛 17g, l7g ' ' between the respective cooling fins 17b, 17b, ... The driving side bracket (6) 6 and the space between the heat radiating body 17 are provided, but the air amount is larger than the gap g between the cold 卩g and the month 17b, and penetrates radially inward. The annular cooling fins h7h Μ, the plurality of through holes 17h, m...' of the 1717b are larger than the example of the fourth drawing. Therefore, the bulging body i7 and the driving side bearing 7 are It can be effectively cooled compared to the above FIG. The above-mentioned through-hole side of the surface of the disk-shaped plate-like portion 1 7a) is radially disposed on the side of the through-hole, and is provided with a surface on the opposite side of the circle 7 side (that is, the driving side 17h) , 17h..., located at the above-mentioned rotating shaft 1 317678 14 -1317198. FIG. 9(b) is a cross-sectional view taken along line IX-IX of FIG. 9(8), and FIG. 9(c) is a rear view. In the eighth and ninth drawings, the same or corresponding portions as those in the above-mentioned first to seventh embodiments are denoted by the same reference numerals. Hereinafter, the points different from the first to fourth embodiments of the present invention are mainly the same. The description of the other related parts of the fifth embodiment of the present invention will be omitted. 〜 In Figs. 8 and 9, the surface side 7c of the driving side of the heat radiating body 17 is not provided with the above-described implementation of the present invention. The cooling fins of the first embodiment to the fourth embodiment have a flat surface of the crucible 17b. Further, the surface of the heat-dissipating body 17 on the opposite driving side; 17d' is provided with a plurality of grooves 17g as in the fourth and seventh drawings. 17g..., at the bottom of each of the groove portions 17g, 17g, ... (close to the above-mentioned rotating shaft 1 " The through-holes Ph of the embodiment 5 of the present invention are as shown in the figure, and the shape observed in the direction in which the upper 1 extends is circular, and can be simply perforated. In addition, as shown by the arrow D, the flow path 17e of the air that flows through the heat radiating body 17 from the drive side to the reverse drive side is composed of the plurality of groove portions 17g, 17g, ... and the above In the fifth embodiment of the present invention, the surface on the driving side of the heat radiating body 17 and the first embodiment are not provided with the above-described embodiments i to 4 of the present invention. The flat surface of the cold portion W 17b is provided with a plurality of the groove portions and the bell hole 17h. As shown by the arrow D, the amount of air flowing through the heat radiating body 17 from the driving side to the counter driving side can be sufficiently ensured. The heat dissipating area of the heat dissipating body 17 is ensured, so that the cooling effect of the heat dissipating body 17 and the driving side bearing 7 can be improved 317678 16 1317198, and the sixth embodiment is used to implement the present invention. Fully closed outer fan of embodiment 6 A cross-sectional view of the motor, fn diagram (4) shows a front view of the main part of the first diagram. FIG. 11(b) is a cross-sectional view taken along line XI-XI of FIG. 11(4), and FIG. 2(4) is a rear view. In the tenth and πth drawings, the same or corresponding portions as those in the above-described first to ninth drawings are denoted by the same reference numerals. Hereinafter, the invention is different from the above-described embodiment of the present invention to the fifth embodiment. The sixth embodiment of the present invention will be described with reference to the embodiment of the present invention. In the tenth and eleventh drawings, the surface 17C on the driving side of the heat radiating body 17 is radially disposed. The plurality of second grooves 17 on the driving side are 17 ι··♦. By arranging the plurality of second groove portions on the driving side, the cold air on the driving side of the heat radiating body 17 can pass through the plurality of second groove portions 17i, 17i, . . . The holes 17h, 17h, ..., the plurality of the gaps g, g, ..., and the plurality of grooves 17g, 17^. The drive side bracket (the space between the bracket% and the heat sink 17 is larger than the fifth embodiment (the ninth diagram) of the present invention, and the plurality of second groove portions 17i on the drive side In the above-described heat dissipating body 17 of 17i, ..., the effect of expanding the area is increased, and the cooling effect of the heat radiating body 17 and the driving side shaft 7 is improved more than that of the fifth embodiment of the present invention. Further, in the above-mentioned Fig. 7 to Fig. 7, the above-described heat sink body is also simpler to manufacture. 317678 17 ** 1317198 In addition, the plurality of second groove portions ni, ni... on the drive side are as shown in the figure. Compared with the plurality of groove portions 17g, 17g, ... on the counter drive side, the radial lengths thereof are close to the above The rotation axis is formed to have a large length. With this configuration, the amount of air flow generated by the rotation of the heat radiator 17 is larger than that of the fifth embodiment (see Fig. 9) of the present invention. EMBODIMENT 7 FIG. 12 is a cross-sectional view of a fully closed outer fan-motor for carrying out a seventh embodiment of the present invention. In addition, in FIG. 12, the same or equivalent to the above-described i-th to eleventh drawings In the following, the points which are different from the above-described first to sixth embodiments of the present invention are mainly referred to as "the seventh embodiment of the present invention, and the description of other related portions will be omitted. According to the seventh embodiment of the present invention, the heat insulating air layer 19 which is spaced apart from the high temperature air in the machine and surrounds the outer periphery of the drive side bearing 7 is provided, and the heat insulating 'air layer 19 is disposed adjacent to the drive side bearing 7 The inner shield plate 20 is sealed to the inside of the machine between a portion of the drive side bracket 6 (a portion adjacent to the drive side bearing 7). Therefore, the temperature is high as indicated by the arrow A. The air flow inside the machine 'will not The drive side bearing 7 and the partial drive side bracket 6 (the portion adjacent to the drive side bearing 7) are in direct contact with each other. That is, the fully closed outer fan motor configured as described above utilizes the above-described internal fan (fan). (5) As shown by the arrow A, the same inner air circumnance is prevented from directly heating the drive side bearing 7. Therefore, the shield plate 20 disposed inside the machine near the drive side bearing 7 is provided and utilized. The shielding plate 2 is connected to the high-temperature air 317678 18 * 1317198 in the machine. • The front view of the main part of Fig. 6 is shown, and Fig. 7(b) is the section of the VII-VII line of Fig. 7(a) viewed from the direction of the arrow. Fig. 7(c) is a cross-sectional view showing a fifth embodiment of the present invention, showing a fifth embodiment of the present invention, showing a full-closed outer fan motor. Fig. 9 is a view showing a fifth embodiment of the present invention, and Fig. 9 is a front view showing the main part of Fig. 8, and Fig. 9(b) is a line of the ιχ_ι line of Fig. 9(a) viewed from the direction of the arrow. A cross-sectional view of the cross section, and Fig. 9 (e) is a rear view. Fig. 10 is a cross-sectional view showing the sixth embodiment of the present invention, showing a fully closed outer fan motor. Fig. 11 is a view showing a sixth embodiment of the present invention, and Fig. 0) shows a front view of the main part of Fig. 10, and Fig. 8(8) shows the eleventh figure (a) in the direction of the arrow. A cross-sectional view of the section of the XI-XI line, and the u-th diagram (4) is a rear view. Fig. 12 is a cross-sectional view showing the seventh embodiment of the present invention, showing a fully closed outer fan motor. The figure of the eighth embodiment is a fully closed outer fan la driving side 2 a rotor core 3 a rotor conductor 5 a fan Fig. 13 is a cross-sectional view showing the motor of the present invention. [Main component symbol description] 1 Rotary shaft reverse drive side 2a Mla ' Ub ventilation path 4 Rotor 317678 1317198 6、8 Bracket 7 9 Reverse drive side bearing 10 10a, 10b Outer air hole 11 12 Stator coil 13 14a, 14b Conduit 15 16 Fan shroud 17 17a Plate portion 17b 17c Driving side surface 17d of heat radiating body 17 17e flow path (through hole) 17f 17g on the reverse driving side of the heat radiating body 17 groove portion 17h 17i on the driving side Hot air layer 20 21 Ventilation hole g Drive side bearing frame Stator core stator Fan fan Fan heat sink Cooling body External peripheral through hole Wind guide (guide) Shield plate cooling fin 17b
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