M363517 五、新型說明： 【新型所屬之技術領域】 本新型疋有關於-種水栗，特別是指一種電動水系。 【先前技術】 在汽車中，為降低引擎運轉溫度，會透過一冷卻系統 之電動水泵將水箱液導流至引擎的冷卻流道令，藉以散除 引擎…、此但在電動水泵運作過程中，由於其轉子單元被 驅轉而連動葉輪進行汲水時，轉軸之高速轉動通常也為因 為摩擦而產生南溫，或是因為控制電路之作用而產生高溫 ，為避免電動水粟本身溫度過高而故障，目前有些電動水 泵θ於其内部導流入冷卻液，藉以散除其内部構件運轉產 生，熱能，以降低電動水泵之溫度，並延長電動水栗之使 用2命，例如美國專利案號第5997261號與簡143號所 揭露之電動水系，該等專利前案是將哪抽輸送之部分液體 丨流入其内。Ρ腔至中’而使其轉子、線圈與局部定子部位 浸泡於液體中，並使流經轉子、線圈與定子後之液體自轉 子之中二軸柃回々IL入葉輪容置空間中，藉以將轉子、線圈 與定子熱能帶走。上述結構雖可用以降低電動水系溫度， 但上述專利案將轉子的轴桿改成中空管狀的設計，除了會 大幅降低軸桿之結構強度外，且中空轴桿之加工製造成本 亦較高。 【新型内容】 因此，本新型之目的，即在提供—種兼具較佳散熱效 果與結構強度之電動水泵。 3 M363517 於是’本新型電動水系，包含一中空機殼、一安裝於 機殼中之中空冷卻筒、一安裝於機殼與冷卻筒間之導水蓋 ，及一安裝於機殼、冷卻筒與導水蓋間之汲水機構。該機 设具有一界定出一開口朝前之安裝空間的筒狀殼壁，且該 殼壁中設置有一間隔環繞該安裝空間之冷卻空間。該冷卻 同疋開口朝前地往後穿設固定於殼壁上，而插置於安裝空 間中，並具有至少一貫穿其内、外周面且可使液體流入該 冷卻空間之連通孔。該導水蓋是蓋封安裝空間開口地安裝 固定於殼壁與冷卻筒前端，且内部界定出一與冷卻筒開口 連通之汲水空間，及一與汲水空間外周緣連通且環繞汲水 空間螺旋延伸之導流空間’並具有一與汲水空間連通之進 水口、一與導流空間之螺旋末端連通的出水口，及一連通 導流空間與冷卻空間之引流孔。該汲水機構包括一同轴插 裝樞設於冷卻筒中並往前延伸穿入汲水空間中之轉子單元 、一固定於轉子單元並可被轉子單元連動樞轉的葉輪，及 一固定於該安裝空間中並可被驅動而驅使轉子單元柩轉之 定子單元’且該葉輪可被驅轉而於汲水空間中產生將液體 自進水口與冷卻筒開口吸入並導流入導流空間，而導流炱 出水口排出之離心吸力。 本新型之功效：透過導流空間之液體可被吸入冷卻空 間’並經由該冷卻筒而再被吸引回流入該汲水空間的設計 ’有助於散除汲水機構產生之熱能，並降低電動水泵製造 加工成本。 【實施方式】 M363517 有關本新型之前述及其他技術内容、特點與功效，在 以下配合參考圖式之一個較佳實施例的詳細說明中，將可 清楚的呈現。 如圖1〜3所示，本新型電動水泵之較佳實施例，包含 一開口朝前之中空機殼3、一設置於機殼3中且開口朝前之 中空冷卻筒4、一蓋封機殼3開口地安裝固定於機殼3與冷 卻筒4前端之中空導水蓋5,及一安裝於機殼3、冷卻筒\ 與導水蓋5間之汲水機構6。 該機殼3具有一界定出一開口朝前之安裝空間3〇1的 琦狀设壁31，且該殼壁31中設置有一環繞於安裝空間3〇1 周圍但與安裝空間301相間隔之冷卻空間3〇2。在本實施例 中’該機殼3包括一界定出該安裝空間3〇1的内殼體311， 及一往前套接固定於内殼體311外而與内殼體311相配合界 定出該殼壁31之外殼體313，該冷卻空間302介於内、外 殼體311、313間。 如圖1、3、4所示，該冷卻筒4具有一同軸往後嵌穿 固定於内殼體311端壁上的中空嵌插部41、一往後靠抵於 内殼體311端壁地固接於嵌插部41前端且管徑較大之中空 管體部42，及數個相間隔地徑向突設於嵌插部41内周面的 L字型限位肋部43，且該冷卻筒4還具有數個徑向貫穿該 嵌插部41内、外周面，而與冷卻空間302連通之連通孔40 〇 該導水蓋5包括一蓋封安裝空間301開口地固接於機 殼3與冷卻筒4前端之環狀内蓋體51，及一安裝固定於内 5 M363517 蓋體51前側面的外蓋體52，且該外蓋體52與内蓋體51相 配合界定出一與冷卻筒4開口連通之汲水空間504，及一與 没水空間504周緣連通地螺旋環繞該汲水空間5〇4延伸之 導流空間501，且該導流空間501之内徑是自其螺旋起始端 5〇5朝其螺旋末端5〇6逐漸變大。 該導水蓋5具有一穿設於外蓋體52中心部位而與汲水 空間504連通之進水口 5〇2、一位於外蓋體52側邊且與導 流空間501螺旋末端506連通之出水口 503。該内蓋體51 具有一前後延伸貫穿其鄰近外周緣部位並導通導流空間501 與冷卻空間302的引流孔512，且該引流孔512是鄰近該導 流空間501之螺旋起始端5〇5。 該汲水機構6包括一同轴樞設定位於冷卻筒4中並往 前延伸貫穿内蓋體51之轉子單元61、一安裝固定於安裝空 間301中而介於内殼體311與冷卻筒4間之定子單元62， 及女裝固疋於轉子單元61前端部並位於没水空間5〇4中 之葉輪63。 該轉子單元61包括一安裝固定於冷卻筒*之該等限位 肋部43間之轴承611、 前延伸穿入汲水空間5 0 、一穿插樞設定位於轴承611上並往M363517 V. New description: [New technical field] This new type has a kind of water chestnut, especially an electric water system. [Prior Art] In the automobile, in order to reduce the operating temperature of the engine, the water tank liquid is diverted to the cooling passage of the engine through an electric water pump of a cooling system, thereby dissipating the engine... However, during the operation of the electric water pump, When the rotor unit is driven to drive the impeller to carry out water sloshing, the high-speed rotation of the rotating shaft usually also generates south temperature due to friction, or generates high temperature due to the action of the control circuit, in order to avoid the temperature of the electric water millenium itself being too high. Fault, some electric water pumps θ currently flow into the coolant inside, in order to dissipate the internal components to generate heat, to reduce the temperature of the electric water pump, and to extend the use of electric water pump, such as the US Patent No. 5997261 The electric water system disclosed in No. 143 and No. 143, the patents of the prior art are which part of the liquid to be conveyed into the liquid. The cavity, the coil and the local stator are immersed in the liquid, and the liquid flowing through the rotor, the coil and the stator is returned to the impeller accommodation space from the two axes of the rotor. Take away the rotor, coil and stator heat. Although the above structure can be used to reduce the temperature of the electric water system, the above patent design changes the shaft of the rotor into a hollow tubular design, in addition to greatly reducing the structural strength of the shaft, and the manufacturing cost of the hollow shaft is also high. [New content] Therefore, the purpose of the present invention is to provide an electric water pump having both a good heat dissipation effect and a structural strength. 3 M363517 Then the new electric water system comprises a hollow casing, a hollow cooling cylinder installed in the casing, a water guiding cover installed between the casing and the cooling cylinder, and a casing, a cooling cylinder and a water guiding device. The drowning mechanism between the covers. The machine is provided with a cylindrical casing wall defining an opening space facing the front, and the casing wall is provided with a cooling space spaced around the installation space. The cooling fin opening is fixed to the casing wall toward the front and inserted into the installation space, and has at least one communication hole penetrating the inner and outer peripheral surfaces thereof and allowing liquid to flow into the cooling space. The water guiding cover is fixedly mounted on the front wall of the sealing and sealing space and the front end of the cooling cylinder, and defines a hydrophobic space communicating with the opening of the cooling cylinder, and a spiral surrounding the outer circumference of the hydrophobic space and surrounding the hydrophobic space. The extended flow guiding space has a water inlet communicating with the hydrophobic space, a water outlet communicating with the spiral end of the flow guiding space, and a drainage hole connecting the guiding space and the cooling space. The water-repellent mechanism includes a coaxial unit that is pivotally mounted in the cooling cylinder and extends forwardly into the hydrophobic space, an impeller fixed to the rotor unit and pivotally coupled by the rotor unit, and a fixed to the a stator unit that can be driven to drive the rotor unit to rotate, and the impeller can be driven to generate a liquid in the hydrophobic space to draw in and into the flow guiding space from the water inlet and the cooling cylinder opening. The centrifugal suction discharged from the outflow outlet. The effect of the present invention: the liquid passing through the flow guiding space can be sucked into the cooling space 'by the cooling cylinder and then sucked back into the design of the hydrophobic space' to help dissipate the heat generated by the hydrophobic mechanism and reduce the electric power Pump manufacturing and processing costs. [Embodiment] The above-mentioned and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments. As shown in FIG. 1 to FIG. 3, a preferred embodiment of the present invention includes a hollow casing 3 having an opening facing forward, a hollow cooling cylinder 4 disposed in the casing 3 and having an opening facing forward, and a sealing machine. The casing 3 is openly mounted to the hollow water guiding cover 5 fixed to the front end of the casing 3 and the cooling cylinder 4, and a water immersing mechanism 6 installed between the casing 3, the cooling cylinder\ and the water guiding cover 5. The casing 3 has a flush-shaped wall 31 defining an opening-facing installation space 3〇1, and the casing wall 31 is provided with a cooling surrounding the installation space 3〇1 but spaced apart from the installation space 301. The space is 3〇2. In the present embodiment, the casing 3 includes an inner casing 311 defining the installation space 3〇1, and a front sleeve is fixedly fixed to the outer casing 311 to cooperate with the inner casing 311 to define the casing. The casing wall 31 is outside the casing 313, and the cooling space 302 is interposed between the inner and outer casings 311 and 313. As shown in FIGS. 1, 3 and 4, the cooling cylinder 4 has a hollow insertion portion 41 which is coaxially inserted back and fixed to the end wall of the inner casing 311, and abuts against the end wall of the inner casing 311. a hollow tubular body portion 42 fixed to the distal end of the insertion portion 41 and having a large diameter, and a plurality of L-shaped limiting rib portions 43 radially protruding from the inner circumferential surface of the insertion portion 41, and The cooling cylinder 4 further has a plurality of communicating holes 40 extending through the inner peripheral surface of the inserting portion 41 and communicating with the cooling space 302. The water guiding cover 5 includes a cover sealing installation space 301 and is fixedly fixed to the casing. 3, an annular inner cover body 51 at the front end of the cooling cylinder 4, and an outer cover body 52 fixed to the front side of the inner cover 5 M363517, and the outer cover body 52 cooperates with the inner cover body 51 to define a a cooling space 504 in which the cooling cylinder 4 is open, and a guiding space 501 extending in a spiral around the surrounding space of the water-free space 504, and the inner diameter of the guiding space 501 is spiraled from the spiral space 504 The starting end 5〇5 gradually becomes larger toward its spiral end 5〇6. The water guiding cover 5 has a water inlet 5 穿 2 which is disposed at a central portion of the outer cover 52 and communicates with the hydrophobic space 504 , and a water outlet which is located at the side of the outer cover 52 and communicates with the spiral end 506 of the guiding space 501 . 503. The inner cover body 51 has a drainage hole 512 extending forwardly and distally adjacent to the outer peripheral edge portion and guiding the flow guiding space 501 and the cooling space 302, and the drainage hole 512 is adjacent to the spiral starting end 5〇5 of the guiding space 501. The water squeezing mechanism 6 includes a coaxial pivoting unit 61 disposed in the cooling cylinder 4 and extending forwardly through the inner cover body 51, and is mounted and fixed in the installation space 301 between the inner casing 311 and the cooling cylinder 4 The stator unit 62 and the wearer 63 are fixed to the front end portion of the rotor unit 61 and located in the waterless space 5〇4. The rotor unit 61 includes a bearing 611 mounted between the limiting ribs 43 of the cooling cylinder*, a front extension penetrating into the hydrophobic space 50, and a penetrating pivot setting on the bearing 611.
中，而自該出水口 :前端部，且可被旋轉軸612連動樞轉，而 中產生一可將液體自進水口 5〇2往後吸入 並隨即將吸入之液體導弓丨入該導流空間5〇1 口 502排出的離心吸力，且該葉輪63於汲 M363517 水^間504中產生之離心吸力，亦會將冷卻筒*中之液體 往前經由該等貫孔511而吸入沒水空間州中，而致使連通 於冷卻筒4之冷卻空間地產生—負壓吸力，進而可將導 流空間5〇1内之部分液體自相連通之^流孔512吸入冷卻 空間302。該定子單元62可被驅動而驅使該轉子單元J帶 動葉輪63轉動。由於魏水機構6為習知構件，且類型眾 多，因此不再詳述。And from the water outlet: the front end portion, and can be pivotally rotated by the rotating shaft 612, and a liquid guiding rod can be sucked in from the water inlet 5〇2 and then sucked into the guiding flow. The centrifugal suction force discharged from the space 〇1 port 502, and the centrifugal suction force generated by the impeller 63 in the water 504 of the 363M363517 also sucks the liquid in the cooling cylinder* into the water-free space through the through holes 511. In the state, a vacuum suction force is generated in the cooling space connected to the cooling cylinder 4, and a part of the liquid in the flow guiding space 5〇1 can be sucked into the cooling space 302 from the communicating hole 512. The stator unit 62 can be driven to drive the rotor unit J to rotate the impeller 63. Since the Weishui mechanism 6 is a conventional member and has many types, it will not be described in detail.
該電動水系進行汲水時，葉輪63於汲水空間5〇4中轉 動產生之離心吸力’可持續將液體自進水^ 5〇2吸入並導 流至導流空間501，而自出水口 5〇3排出。於此同時，導流 空間501内之部分液體會被吸入冷卻空間3〇ι，並經由連通 孔4〇流入冷卻筒4中，然後再回流入没水空間504，而再 次被導流人導流空間5(Η，而與來自進水口術之相對較低 溫液體混合降溫，藉此’可使得轉子單元61可持續浸泡在 相對低溫之液體中作動。 藉由於冷卻筒4與冷卻空間3G2中充填液體，且流入 冷部空間302與冷卻筒4中之液體可再回流入汲水空間5〇4 中的結構設計，可持續地以相對低溫之液體散岐水機構6 產生之熱旎，而能使該電動水泵之内部構件維持在一較低 的工作環境，進而可大幅降低構件因溫度過高而故障的 發生率。 綜上所述，透過汲水機構6於汲水空間504中產生之 離心吸力’可自動促使導流空間501之液體被吸入冷卻空 間301 ’並於流經冷卻筒4内之轉子單元61後再被吸引 7 M363517 回流入汲水空間504,而與相對低溫之液體混合降溫排出的 結構設計，可使轉子單元61持續浸泡於相對低溫的液體中 作動’而可利用不斷被吸入冷卻空間302與冷卻筒4之低 溫液體散除汲水機構6作動時所產生之熱能，所以能夠迅 速降低汲水機構6之溫度，達到迅速散熱降溫之目的，進 而可大幅降低電動水泵因溫度過高而故障的發生率，且上 述結構設計，不需另外將旋轉轴612加工成中空管狀，所 以可在保有該旋轉軸612之結構強度的情況下，相對降低 電動水泵之製造成本。故確實能達成本新型之目的。 惟以上所述者，僅為本新型之較佳實施例而已，當不 能以此限定本新型實施之範圍，即大凡依本新型申請專利 範圍及新型說明内容所作之簡單的等效變化與修飾，皆仍 屬本新型專利涵蓋之範圍内。 【圖式簡單說明】 圖1是本新型電動水泵之一較佳實施例的立體圖； 圖2是該較佳實施例的前側視圖； 圖3疋圖2沿線瓜-瓜之右側視剖面圖；及 圖4是該較佳實施例之前側視剖面圖。 M363517 【主要元件符號說明】 -·機殼 503… …出水口 3 01 "… ·*安裝空間 504… …*汲水空間 3 0 2…… •-冷卻空間 505… —螺旋起始端 1 9t « « 0 X « Λ …殼壁 5 0 6… …·螺旋末端 3 * *，* * "内殼體 5 1 9 * * * f . …·内蓋體 3 13，11 *κ， …外殼體 512… •…引流孔 **»0**»» ••冷卻筒 5 2 "… •…外蓋體 j 0 Κ * κ Φ X ♦ » “連通孔 U « X « ^ <· …沒水機構 4 1 S，**6»» -嵌插部 G 1 <r * > 1κ « …·轉子單元 4 2 « * » S » * » -管體部 611… •…轴承 ♦&*».·»«« "限位肋部 612… …·旋轉轴 "導水蓋 613" •…磁鐵 5 01 "… •-導流空間 6 2 "。。 …*定子單元 502，"* ••進水口 6 3 μ… •…葉輪When the electric water system is drowning, the centrifugal suction generated by the rotation of the impeller 63 in the hydrophobic space 5〇4 can continuously suck and guide the liquid from the influent water to the flow guiding space 501, and the water outlet 5 〇3 is discharged. At the same time, part of the liquid in the flow guiding space 501 is sucked into the cooling space 3〇, and flows into the cooling cylinder 4 through the communication hole 4, and then flows back into the water-free space 504, and is again diverted by the guiding person. Space 5 (Η, and mixing with a relatively lower temperature liquid from the inlet nozzle to cool down, thereby 'can cause the rotor unit 61 to continue to immerse in a relatively low temperature liquid. By means of the cooling cylinder 4 and the cooling space 3G2 filled with liquid And the structural design of the liquid flowing into the cold space 302 and the cooling cylinder 4 can be re-flowed into the hydrophobic space 5〇4, and the enthalpy generated by the relatively low temperature liquid dispersing water mechanism 6 can be continuously The internal components of the electric water pump are maintained in a low working environment, thereby greatly reducing the incidence of failure of the component due to excessive temperature. In summary, the centrifugal suction generated by the water immersion mechanism 6 in the hydrophobic space 504 'The liquid of the flow guiding space 501 can be automatically sucked into the cooling space 301' and then passed through the rotor unit 61 in the cooling cylinder 4 and then sucked into the hydrophobic space 504 by 7 M363517, and mixed with the relatively low temperature liquid. The structural design of the cooling discharge can make the rotor unit 61 continue to be immersed in the relatively low temperature liquid to operate, and the heat energy generated by the cryogenic liquid that is continuously sucked into the cooling space 302 and the cooling cylinder 4 to dissipate the water immersion mechanism 6 can be utilized. Therefore, the temperature of the water-repellent mechanism 6 can be quickly reduced, and the purpose of rapid heat dissipation and temperature reduction can be achieved, thereby greatly reducing the incidence of failure of the electric water pump due to excessive temperature, and the above structural design does not need to separately process the rotating shaft 612 into a hollow tubular shape. Therefore, the manufacturing cost of the electric water pump can be relatively reduced while maintaining the structural strength of the rotating shaft 612. Therefore, the object of the present invention can be achieved. However, the above description is only a preferred embodiment of the present invention. When it is not possible to limit the scope of the implementation of the present invention, that is, the simple equivalent changes and modifications made by the present invention in accordance with the scope of the novel application and the novel description are still within the scope of the present patent. [Simplified illustration] 1 is a perspective view of a preferred embodiment of the present invention; FIG. 2 is a front side view of the preferred embodiment; 3 is a side cross-sectional view of the melon-melon along the line; and FIG. 4 is a side cross-sectional view of the preferred embodiment. M363517 [Description of main components] - · Case 503... Water outlet 3 01 "... · * Installation space 504... ... * Water space 3 0 2... • - Cooling space 505... - Spiral starting point 1 9t « « 0 X « Λ ... Shell wall 5 0 6... ...·Spiral end 3 * *,* * "Inner housing 5 1 9 * * * f . ...· Inner cover 3 13,11 *κ, ...Outer body 512... •...Drainage hole**»0**»» ••Cooling cylinder 5 2 " ;... •...outer cover j 0 Κ * κ Φ X ♦ » "Connecting hole U « X « ^ <· ...Waterless mechanism 4 1 S, **6»» - Inserting part G 1 <r * > 1κ « ...·Rotor unit 4 2 « * » S » * » - Tube body 611... •...bearing ♦&*».»»«« "limit rib 612... ...·rotation axis" Water guide cover 613" •... Magnet 5 01 "... • - Diversion space 6 2 ". . ...*stator unit 502,"* •• Inlet 6 3 μ... •...impeller