M323163 八、新型說明： 【新型所屬之技術領域】 本創作係關於一種具有密封改良結構之罐裝馬達，尤 指一種適用於可避免密封套筒於組裝時損壞彈性密封圈之 5 具有密封改良結構之罐裝馬達。 【先前技術】 10 15 2〇 習知之罐裝馬達（Canned M〇t〇r)中，其内部之轉子外 週套設有-密封套筒’而且利用二彈性密封圈分別密封住 密封套筒二端，藉以使罐裝馬達具有密封之效果。 上述白知罐I馬達必須具有密封套筒與彈性密封圈 之密封結構之原因在於，例如罐裝馬達❹於半導體製程 過程中’若於該製程散逸有有害的製程氣體，例如氯氣 氣⑽3)、四氟化碳⑽4)、_燒（siH4)、氫氣㈤ 有可以製程㈣中經由轉子二端之軸承流入罐裝 馬達内’此時，若罐裝馬達内未具有密封 製程氣體會由罐裝馬達之轉子 、" 裝馬達外部，如此將會造成人體傷甚或散逸到罐 甚至出現爆炸等問題。傷害、罐裝馬達發生損壞、 參考圖1，其繪示習知罐裝 、 問題，傳統上皆是利用上述於罐裝馬：：。為解決上述 與彈性密封圈92之密封結構㈣套人密封套筒91 莫H ^^ 稽以達成罐裝馬達之密封效 二二= 上當密封套筒91套入於罐裝馬達時，如箭 向’密封套筒91之端緣部叫先碰觸到彈 5 M323163 性密封圈92。因密封套筒91本身為 … 其端緣部911顯得較為鋒利，因此 ：^ <圓同’故 封圈92時，彈性密封圈92合右姑六而、、表部911觸及彈性密 切判而浐捭 曰 在封套筒91之端緣部911 切割而知壞的潛在問題，相對使 功能，實料分理想。 〜、封圈92喪失其密封 【新型内容】 本創作之具有密封改良結構之 殼體、—第一端芸、一坌_ 勹運。栝有一外 弟鈿琉 第一端盍、及—馬達結構。 上述之外殼體包括一第一端開口、一 .^ 矛一文而開口、；^ =部容室其係連通第-端開π與第二端開口。第_ = 罩盍於外殼體之第一端開口，第一端二義 15 凸緣其係朝向内部容室凸設，第-端環凸環 :外%面。並凹設有一環凹部，環凹部容設有—彈性密封 上述之第二端蓋罩蓋於外殼體之第二端開口 構係容置於外㈣之㈣容室内，馬達結構包括—馬= 子、一密封套筒、及一馬達轉子。 、、、達疋 上述之馬達定子固設於外殼體之内壁、並婊 中空内部’中空内部具有—内徑。密封套筒設於馬達^ 與馬達轉子之間，馬達轉子包括有一轉軸，轉軸二端^子 第一端軸承、及一第二端軸承分別樞設於第一端蓋邀k 一碥盍上。馬達定子可繞設有複數個線圈。 ，、第 密封套筒包括一前端部、及一後端部，前端部係徑。 20 .M323163 内縮有一頸部、並鄰近第_ 1如七 第一端外碥盍。頸部套設於第一端蓋之 ⑽上，且頸部之外端緣外擴呈-喇叭口。上述 t八口之外徑不大於馬達定子之内徑。 11 述結構，組裂密封套筒入外殼體時，由於密封 tr計’使得彈性密封圈可平順而不被破壞地 端蓋，並與較窄之頸部緊密接觸而達到良好的穷 亦口八口可為自頸部末端突然f折之線性斜開口， 亦可為一漸擴之曲線型開口。 上述第二端蓋可包括一篦- π ^咕 第一鳊^凸緣，其係朝向内部 =。第二端環凸緣可包括有一第二端外環面，密封 套同^另-端係套設於第二端蓋之第二端外環面上。 第二端環凸緣可更凹設有再一 容設有再-彈性密封圈。上述之彈再，凹部亚 (〇-Ring) 0 ^ 1述之㈣㈣圈可為〇型環 15 20 勺社^創^另提供一種具有密封改良結構之罐裝馬達，豆 包括有一外般體、-第-端蓋、-第二端蓋、及4達： 構。外设體包括一第一端開口、—第二端開口、 容室，其中㈣容室係連通第1開口與第二端開口/ 第：端蓋係罩蓋於外殼體之第—端開口，第-端 皿並包括-第-端環凸緣其係朝向内部容室凸設 壞凸緣包括有-第一端外環面。上述第 殼體之第二端開口。 〒皁盍於外 馬達結構係容置於外殼體之内部容室内 括一馬達定子、一窜射峑钙 ^ 埯、、、。構包 名封套同、及—馬達轉子。馬達定子固 7 M323163 β叉於外㈣之内壁、並環繞 有一馬達fT二内部，中空内部具 疋子内徑。密封套筒設於馬達定子盘邑、告絲 間。馬達轉子勺k ^ A 運疋子與馬達轉子之 及-第— 轉軸二端透過—第-端轴承、 5 15 ;:轴承分別樞設於第-端蓋與第二端蓋上。 上述畨封套筒包括一前端部、 _ 徑向内縮有一頸邱.後知邻，刖端部係 環面’頭内環面上凹設有一環 r員广括有-頊内 宓封固^ 衣凹口P，裱凹部容設有一彈性 :=:環面係套設在第-端蓋之第-端外環面上， 衣凹奴外經係m馬達定子之内徑。 上：第一端蓋之第一端環凸緣末端 =錐部可為一線性斜圓錐，亦可為一曲線圓錐J 他可導引彈性㈣圈平順移動之幾何形狀。 八 【實施方式】 ^考圖2 ’其綠示本創作第一較佳實施例之罐裝馬達 口丨J面圖。具有密封改_ —于改良心構之罐裝馬達包括有一外殼體 a ^盍、—第二端蓋、以及—馬達結構14。以下 篦““列中’第-端蓋所指為，位於圖示左側之前端蓋； 弟盍所指為，位於圖示右側之後.端蓋。 本實施例之外殼體U包括有_前 lu 開口 112、及一内部容宮η,咖如— 傻細 至113。内部谷室113係位於外殼體11 =並連^前端開° 111與後端開口 112之間。前端蓋12係 蓋於外取體11之前端開口 lu，前端蓋12並包括一前端環 凸緣m。前端環凸緣121係朝向内部容室ιΐ3凸設，前端環 20 M323163 凸緣121之外環週具有一前端外環面120。 刖端蓋12之前端環凸緣i2i係徑向分隔前端蓋12成一 環狀外侧125、及一環狀内侧126，轉軸144之前端軸承145 係組設於環狀内側126内。且前端蓋12中央有一轉轴通孔 5 148以供轉軸144穿過。 後端蓋13罩蓋於外殼體丨丨之後端開口 n2。後端蓋13 並包括一後端環凸緣13 1，係朝向内部容室113凸設。後端 環凸緣131之外環週具有一後端外環面130。 後端環凸緣131係徑向分隔後端蓋13成一環狀外侧 10 135、及一環狀内側136，轉軸144之後端軸承146係組設於 於環狀内側136。 馬達結構14係容置於外殼體丨丨之内部容室113内。馬 達結構14包括一馬達定子141、一密封套筒142、及一馬達 轉子143。馬達定子141固設於外殼體n之内壁、並環繞形 I5成一中空内部149,中空内部149具有一内徑D4，即為^達 疋子内徑D4，馬達定子141並繞設有複數個線圈丨47。密封 套筒142位於馬達定子14ι與馬達轉子143之間。馬達轉子 143包括有一轉軸144，轉軸144二端是透過上述前端軸承 145及後端軸承146分別樞設於前端蓋12與後端蓋13上。 20 密封套筒I42之一端係套設於前端蓋12之前端外環面 上。剷端環凸緣121並凹設有一環凹部122。環凹部122 容設有一彈性密封圈123。本實施例中，環凹部122為凹設 於前端環凸緣121之前端外環面120上之方凹槽。 後知環凸緣13】同樣凹設有另一環凹部丨32，另一環凹 M323163 部1—32並容設有另一彈性密封圈133。本實施例所使用之彈 性始、封圈123及133為0型環（Ο-Ring)。 松封套筒142包括一前端部21、及一後端部22。前端 部21係鄰近前端蓋12，後端部22係鄰近後端蓋η。詳細而 5 口，也封套筒142之前端部21係套設於前端蓋12之前端外環 面I20上，而密封套筒142之後端部22係套設於後端蓋13之 後端外環面13〇上。 前端部21並徑向内縮有一頸部23，頸部23之外端緣並 外擴主一喇叭口 24，其中，喇叭口 24之外徑D2係不大於馬 10達疋子〗41之内控D4。本實施例之喇σ八口為自頸部23末端 彎折之線性斜開口。 以下以一組裝例說明本創作之特點。預先將彈性密封 圈123套於前端蓋12之環凹槽122。再將前端蓋12套入外殼 體11、馬達結構14之馬達定子141裝入至定位。之後，再依 I5序將搶封套筒142、馬達轉子143組入外殼體u。裝入密封 套筒142時’彈性密封圈123是先碰觸到密封套筒ι42之前端 部21非銳利之喇叭口24，因此不會被切斷損壞，而且喇叭 口 24還有導引之作用，可使密封套筒142平順地套於前端蓋 12之前端環凸緣121上。 20 頸部23之設計主要目的在於，以配置外擴之喇叭口 24 為目標的情況下’若以相同於後端部22之外徑〇1於前端部 21直接外擴，將導致喇叭口外徑D2大於馬達定子141之内 徑D4，造成密封套筒142無法裝入之情形。且較窄之頸部 23有助於壓實彈性密封圈123使密封更佳。 M323163 需特別說明的是，實施例所述第一端蓋與第二端蓋之 對應關係並非限定，第-端蓋為後端蓋、第二端蓋為而 蓋之情形亦包含於本創作之精神及範圍^則此時組裝順 序改變為：6#設有料密圭十圈之後端i先結合於外殼 5體’之後再以心口在前之方式將密封套筒朝後端蓋置 入。亦即，本創作是以㈣套筒之前端部在前、後端部在 後之方式組裝入外殼體中，使密封套筒不易觀察對準狀態 之一端得以受一導引作用套至定位、避免損壞密封圈。 參考圖3，其繪示第二較佳實施例之罐裝馬達之喇队 1〇 口示意圖。本實施例大致與上述實施例相同，唯不同處在 於，喇0八口 34係為自頸部33末端漸擴之曲線開口。 因此，藉由本創作之密封套筒之特殊尺寸設計，使組 裝密封套筒時不再有彈性密封圈損毀之問題，而且不需更 改馬達内部構件如轉子或定子之尺寸而可沿用既有規格， 密封功效更好。 多考圖4，其為本創作第三較佳實施例之罐褒馬達剖 面圖，其中虛線表示組裝後之狀態。本實施例之結構與上 述實施例大致相同，唯差異處在於其密封套筒442包括一前 端部41、及一後端部42，前端部41之頸部43包括有一頸内 2〇環面431，頸内環面431上凹設有一環凹部料，環凹部料容 設有一彈性密封圈53。 頸内環面431係套設於前端蓋62之前端外環面62〇 上’其中’環凹部432之外徑D3係不大於馬達定子ι41之内 徑D4’而前端蓋62之前端環凸緣621末端緣並内縮呈一圓 π .M323163 錐部627，其為一線性斜圓錐。 當組裝密封套筒442進入外殼體1丨時，如所示組入方 向P，預先置於環凹部44之彈性密封圈53會先抵達前端蓋 62之圓錐部627。此時圓錐部627產生一導引作用，使彈性 5密封圈53平順地通過圓錐部627，最後緊密接觸於前端外環 面620。故彈性密封圈53同樣避免了被切割破壞的危險。 同樣地，上述實施例中圓錐部亦可以是形成於後端蓋 者，此時組裝方向變為··以密封套筒之環凹部在前之方式 將密封套筒朝後端蓋置入。 10 參考圖5，其繪示第四較佳實施例之罐裝馬達之前端 部之圓錐部示意圖。本實施例大致與上述實施例相同，: 不同處在於’圓錐部628為-曲線圓錐，其提供了更佳 引作用。 上述實施例僅係為了方便說明而舉例而已，本創作所 主張之權利範圍自應以申請專利範圍所述為準，而非僅限 於上述貫施例。 【圖式簡單說明】 圖1係習知罐裝馬達剖面圖。 20圖2係本創作第一較佳實施例之罐裝馬達剖面圖。 圖3係本創作第二較佳實施例之罐裝馬達之剩队口示意圖 圖4係本創作第三較佳貪施例之罐裝馬達剖面圖。 圖5係本創作第四較佳實施例之罐裝馬達之圓錐部示意圖 12 M323163M323163 VIII. New description: [New technical field] This creation is about a canned motor with a sealed improved structure, especially one that can avoid the damage of the elastic sealing ring when the sealing sleeve is assembled. Canned motor. [Prior Art] 10 15 2 In the conventional canned motor (Canned M〇t〇r), the inner rotor is sleeved with a -sealing sleeve and the two sealing rings are respectively sealed by the two elastic sealing rings. End, so that the canned motor has a sealing effect. The reason why the above-mentioned Baizhi can I motor must have a sealing structure of a sealing sleeve and an elastic sealing ring is that, for example, the canned motor is in the process of semiconductor manufacturing process, if a harmful process gas such as chlorine gas (10) 3 is dissipated in the process, Carbon tetrafluoride (10) 4), _burn (siH4), hydrogen (5) can be processed in process (4) into the canned motor through the bearing at the two ends of the rotor. At this time, if there is no sealed process gas in the canned motor, the canned motor will be The rotor, " is mounted outside the motor, which will cause problems such as human injury or even dissipating to the canister and even exploding. Damage to the canned motor, refer to Figure 1, which depicts conventional canning, problems, and traditionally used in the canned horse::. In order to solve the above-mentioned sealing structure with the elastic sealing ring 92 (4) the sleeve sealing sleeve 91 is used to achieve the sealing effect of the canned motor 22 = when the sealing sleeve 91 is inserted into the canned motor, such as the arrow The end edge of the sealing sleeve 91 is first touched by the bullet 5 M323163 sealing ring 92. Since the sealing sleeve 91 itself is... the edge portion 911 is relatively sharp, therefore: ^ < round the same as the sealing ring 92, the elastic sealing ring 92 is right, and the surface 911 touches the elasticity closely. The potential problem of the 浐捭曰 cutting at the edge 911 of the sealing sleeve 91 is relatively good, and the function is ideal. ~, sealing ring 92 loses its seal [New content] The shell of this creation has a sealed and improved structure, the first end 芸, one 坌 _ 勹. There is a foreign brother, the first end, and the motor structure. The outer casing includes a first end opening, a spline and an opening, and a portion of the connecting chamber is connected to the first end opening π and the second end opening. The _ = cover is open at the first end of the outer casing, and the first end of the second flange 15 is convex toward the inner chamber, and the first end ring is convex: the outer surface. And a recessed portion is formed in the recessed portion, and the annular recessed portion is provided with a second end cover cover elastically sealing the second end cover of the outer casing, and the outer structure of the outer end (4) is accommodated in the outer chamber. The motor structure includes - horse = sub a sealing sleeve and a motor rotor. The motor stator described above is fixed to the inner wall of the outer casing and is hollow inside. The hollow interior has an inner diameter. The sealing sleeve is disposed between the motor and the motor rotor. The motor rotor includes a rotating shaft, and the first end bearing of the rotating shaft and the second end bearing are respectively pivoted on the first end cover. The motor stator can be wound with a plurality of coils. The first sealing sleeve includes a front end portion and a rear end portion, and the front end portion has a diameter. 20 .M323163 has a neck that is indented and is adjacent to the first _ 1 as the first end of the seven. The neck is sleeved on the first end cap (10), and the outer edge of the neck is expanded to a bell mouth. The outer diameter of the above eight ports is not larger than the inner diameter of the motor stator. 11 The structure, when the split seal sleeve is inserted into the outer casing, because the seal tr meter 'sends the elastic seal ring smoothly without damaging the end cap, and close contact with the narrow neck to achieve a good poor The mouth may be a linear oblique opening that is suddenly f-folded from the end of the neck, or may be a divergent curved opening. The second end cap may include a 篦-π^咕 first flange which is oriented toward the inner side. The second end ring flange may include a second end outer ring surface, and the sealing sleeve is sleeved on the outer end surface of the second end of the second end cover. The second end ring flange can be further recessed to provide a re-elastic seal. The above-mentioned bullets, the concave portion of the 亚-Ring 0 ^ 1 described in the (four) (four) circle can be a 〇-shaped ring 15 20 spoons, the company also provides a canned motor with a sealed improved structure, the beans include an external body, - the first end cap, the second end cap, and the 4: construction. The peripheral body includes a first end opening, a second end opening, and a chamber, wherein (4) the chamber communicates with the first opening and the second end opening/the: end cap is attached to the first end opening of the outer casing, The first end dish and including the - first end ring flange projecting toward the inner chamber have a bad flange including a first end outer annulus. The second end of the first housing is open. The external motor structure is housed in the inner chamber of the outer casing, including a motor stator, a sputum ^, 埯, 、, . The package name is the same as the envelope and the motor rotor. Motor stator solid 7 M323163 β forked on the outer wall of the outer (4) and surrounded by a motor fT inside, the hollow interior has the inner diameter of the dice. The sealing sleeve is arranged between the motor stator and the wire. The motor rotor spoon k ^ A and the motor rotor - the first shaft of the shaft - the first end bearing, 5 15 ;: the bearings are respectively pivoted on the first end cover and the second end cover. The tamper-evident sleeve includes a front end portion, _ a radially indented neck, a neck, a rear abutment, a stern end portion, a toroidal surface, a concave inner ring surface, and a ring-shaped inner member. ^ The clothing notch P, the concave portion of the crucible is provided with an elasticity: =: the toroidal sleeve is sleeved on the outer end surface of the first end of the first end cap, and the inner diameter of the m-motor stator of the outer gravure. Upper: First end ring flange end of the first end cap = The taper can be a linear oblique cone or a curved cone J. It can guide the geometry of the elastic (four) circle smoothly. Eight [Embodiment] FIG. 2 is a schematic view of a canned motor of a first preferred embodiment of the present invention. A canned motor having a seal modification includes an outer casing a ^ , a second end cap, and a motor structure 14 . The following 篦 "" in the column - the end cap is referred to as the front end cap on the left side of the illustration; the sister is referred to as the rear cover on the right side of the figure. The outer casing U of the present embodiment includes a front lu opening 112 and an inner cavity η, which is as simple as 113. The inner trough 113 is located between the outer casing 11 = the front end opening 111 and the rear end opening 112. The front end cover 12 is attached to the front end opening lu of the outer take-up body 11, and the front end cover 12 includes a front end ring flange m. The front end ring flange 121 is convex toward the inner chamber ι3, and the front end ring 20 M323163 has a front end outer ring surface 120 at the outer circumference of the flange 121. The front end ring flange i2i of the rear end cover 12 is a radially spaced front end cover 12 which is formed into an annular outer side 125 and an annular inner side 126. The front end bearing 145 of the rotating shaft 144 is assembled in the annular inner side 126. And a shaft through hole 5 148 is provided in the center of the front end cover 12 for the shaft 144 to pass therethrough. The rear end cover 13 is covered by the rear end opening n2 of the outer casing. The rear end cover 13 and includes a rear end ring flange 13 1 projecting toward the inner chamber 113. The outer end of the rear end ring flange 131 has a rear outer annular surface 130. The rear end ring flange 131 is formed by radially dividing the rear end cover 13 into an annular outer side 10 135 and an annular inner side 136, and the rear end bearing 146 of the rotating shaft 144 is disposed on the annular inner side 136. The motor structure 14 is housed within the interior chamber 113 of the outer casing. The motor structure 14 includes a motor stator 141, a seal sleeve 142, and a motor rotor 143. The motor stator 141 is fixed on the inner wall of the outer casing n and surrounds the shape I5 into a hollow inner portion 149. The hollow inner portion 149 has an inner diameter D4, that is, an inner diameter D4 of the dice, and the motor stator 141 is wound with a plurality of coils.丨47. Sealing sleeve 142 is located between motor stator 14i and motor rotor 143. The motor rotor 143 includes a rotating shaft 144. The two ends of the rotating shaft 144 are pivotally disposed on the front end cover 12 and the rear end cover 13 through the front end bearing 145 and the rear end bearing 146, respectively. 20 One end of the sealing sleeve I42 is sleeved on the outer ring surface of the front end of the front end cover 12. The shovel end ring flange 121 is recessed with a ring recess 122. The annular recess 122 houses an elastic sealing ring 123. In this embodiment, the annular recess 122 is a recess that is recessed in the front outer ring surface 120 of the front end ring flange 121. The rear ring flange 13 is also recessed with another ring recess 32, and the other ring is recessed M323163 1 - 32 and accommodates another resilient seal 133. The elastic starting and sealing rings 123 and 133 used in this embodiment are 0-rings (Ο-Ring). The loose sleeve 142 includes a front end portion 21 and a rear end portion 22. The front end portion 21 is adjacent to the front end cover 12, and the rear end portion 22 is adjacent to the rear end cover n. In detail, the front end portion 21 of the sleeve 142 is sleeved on the outer end surface I20 of the front end cover 12, and the end portion 22 of the sealing sleeve 142 is sleeved on the outer end of the rear end cover 13. Face 13 〇. The front end portion 21 is radially retracted into a neck portion 23, and the outer end edge of the neck portion 23 is externally expanded by a main bell mouth 24, wherein the outer diameter D2 of the bell mouth 24 is not greater than the inner control of the horse 10 D4. The eight sigma of the present embodiment is a linear oblique opening bent from the end of the neck portion 23. The following describes the characteristics of this creation with an assembly example. The elastic sealing ring 123 is placed in the ring groove 122 of the front end cover 12 in advance. The front end cover 12 is then fitted into the outer casing 11, and the motor stator 141 of the motor structure 14 is loaded into position. Thereafter, the seal sleeve 142 and the motor rotor 143 are assembled into the outer casing u in the order of I5. When the sealing sleeve 142 is installed, the elastic sealing ring 123 is first touched to the non-sharp bell mouth 24 of the front end portion 21 of the sealing sleeve ι42, so that it is not damaged by the cutting, and the bell mouth 24 has a guiding function. The sealing sleeve 142 can be smoothly fitted over the front end ring flange 121 of the front end cover 12. 20 The design of the neck 23 is mainly for the purpose of arranging the flared bell 24 as the target. If the outer diameter 〇1 of the rear end portion 22 is directly expanded at the front end portion 21, the outer diameter of the bell mouth will be caused. D2 is larger than the inner diameter D4 of the motor stator 141, causing the sealing sleeve 142 to be unloaded. The narrower neck 23 helps to compact the elastomeric seal 123 for better sealing. M323163 It should be particularly noted that the corresponding relationship between the first end cover and the second end cover is not limited, and the case where the first end cover is the rear end cover and the second end cover is the cover is also included in the creation. Spirit and scope ^ At this time, the assembly sequence is changed to: 6#, after the tenth ring is placed, the end i is first joined to the outer casing 5 body, and then the sealing sleeve is placed toward the rear end cover in a manner of the heart. That is, the present invention is assembled into the outer casing in such a manner that the front end of the sleeve is at the front and the rear end portion, so that one end of the sealing sleeve is not easily observed and aligned, and the sleeve is guided to the positioning. Avoid damaging the seals. Referring to Figure 3, there is shown a schematic view of a racquet 1 of a canned motor of a second preferred embodiment. This embodiment is substantially the same as the above embodiment except that the slabs 34 are curved openings that taper from the end of the neck 33. Therefore, the special size design of the sealing sleeve of the present invention eliminates the problem of damage of the elastic sealing ring when assembling the sealing sleeve, and the existing specifications can be used without changing the dimensions of the internal components of the motor such as the rotor or the stator. The sealing effect is better. Fig. 4 is a cross-sectional view showing the can motor of the third preferred embodiment of the present invention, wherein the broken line indicates the assembled state. The structure of this embodiment is substantially the same as that of the above embodiment, except that the sealing sleeve 442 includes a front end portion 41 and a rear end portion 42, and the neck portion 43 of the front end portion 41 includes a neck inner ring surface 431. The inner ring surface 431 is concavely provided with a ring concave material, and the annular concave portion is provided with an elastic sealing ring 53. The inner neck ring surface 431 is sleeved on the front end outer surface 62 of the front end cover 62. The outer diameter D3 of the annular recess 432 is not larger than the inner diameter D4' of the motor stator ι41 and the front end flange of the front end cover 62 is flanged. The end edge of 621 is inwardly contracted into a circle π. M323163 cone portion 627, which is a linear oblique cone. When the sealing sleeve 442 is assembled into the outer casing 1 ,, as shown in the direction P, the elastic sealing ring 53 previously placed in the annular recess 44 first reaches the conical portion 627 of the front end cover 62. At this time, the conical portion 627 exerts a guiding action to smoothly pass the elastic 5 seal ring 53 through the conical portion 627 and finally in close contact with the front end outer annular surface 620. Therefore, the elastic sealing ring 53 also avoids the risk of being cut by the cutting. Similarly, in the above embodiment, the conical portion may be formed on the rear end cover, and the assembly direction may be such that the sealing sleeve is placed toward the rear end cover in such a manner that the annular recess of the sealing sleeve is forward. Referring to Figure 5, there is shown a schematic view of the conical portion of the front end of the canned motor of the fourth preferred embodiment. This embodiment is generally the same as the above embodiment, except that the 'conical portion 628 is a curved cone, which provides a better guiding effect. The above-described embodiments are merely examples for the convenience of the description, and the scope of the claims is intended to be based on the scope of the patent application, and is not limited to the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view of a conventional canned motor. Figure 2 is a cross-sectional view of the canned motor of the first preferred embodiment of the present invention. 3 is a schematic view of the remaining port of the canned motor of the second preferred embodiment of the present invention. FIG. 4 is a cross-sectional view of the canned motor of the third preferred embodiment of the present invention. Figure 5 is a schematic view showing the conical portion of the canned motor of the fourth preferred embodiment of the present invention 12 M323163
【主要元件符號說明】 外殼體11 後端開口 112 前端蓋12,62 前端環凸緣121，621 彈性密封圈123，133,53 環狀内側126，136 後端外環面130 馬達結構14 密封套筒142,442 轉軸144 後端軸承146 轉軸通孔148 前端部21，41 頸部 23,33,43 頸内環面431 後端部之外徑D1 環凹部之外徑D3 密封套筒91 彈性密封圈92 前端開口 111 内部容室113 前端外環面120,620 環凹部 122，132,44 環狀外側125，135 後端蓋13 後端環凸緣131 馬達定子141 馬達轉子143 前端軸承145 線圈147 中空内部149 後端部22,42 喇 口八口 24,34 圓錐部627,628 剩^八口外徑D2 馬達定子内徑D4 端緣部911 組入方向P 13[Main component symbol description] Outer casing 11 Rear end opening 112 Front end cover 12, 62 Front end ring flange 121, 621 Elastic seal ring 123, 133, 53 Annular inner side 126, 136 Rear end outer ring surface 130 Motor structure 14 Seal sleeve Cartridge 142, 442 Rotary shaft 144 Rear end bearing 146 Rotary shaft through hole 148 Front end portion 21, 41 Neck 23, 33, 43 Neck inner ring surface 431 Rear end outer diameter D1 Annular part outer diameter D3 Sealing sleeve 91 Elastic sealing ring 92 Front opening 111 Internal chamber 113 Front end outer ring surface 120, 620 Annular recess 122, 132, 44 Annular outer side 125, 135 Rear end cover 13 Rear end ring flange 131 Motor stator 141 Motor rotor 143 Front end bearing 145 Coil 147 Hollow interior 149 End 22, 42 8 mouth 24, 34 Conical 627, 628 Remaining ^ 8 OD D2 Motor stator inner diameter D4 End edge 911 Grouping direction P 13