201118259 . 六、發明說明： 【發明所屬之技術領域】 本發明是關於一種水泵，特別是指一種以電動方式輸 送冷卻水，並設有散熱結構的水栗。 【先前技術】 一般車輛在設計上，通常會利用一冷卻系統來降低引 擎運轉的溫度，前述冷卻系統主要包括一個可抽送冷卻水 並具有一汲水機構的電動水泵，以及將冷卻水送往引擎的 冷卻管路，由於電動水泵的汲水機構在運作時會產生高溫 ’因此’有些水泵會設計散熱結構。 參閱圖1 ’是公告編號M363517新型專利的剖視圖， 該專利所揭示的水泵主要包含：一個内殼座u、一個框套 在該内殼座11外周圍並共同界定出一冷卻空間12的外殼座 13、一個和内、外殼座U、13對接的銜接座14、一個架設 在該内殼座11及銜接座14間的汲水機構15，以及一個組 • 裝在5亥銜接座14右側並和銜接座14共同界定出一導流空 間16的導水蓋17。其中該外殼座13具有一端壁ΐ3ι，以 及一個自端壁131往該冷卻空間12突伸的環突台132，而 該内殼座11具有一個對應該環突台132的架設孔m，所 述汲水機構15則是具有一個橫向架設在内殼座丨丨之架設孔 111及銜接座14間的套筒151、一個安裝在該套筒151之一201118259. VI. Description of the Invention: [Technical Field] The present invention relates to a water pump, and more particularly to a water chestnut that electrically delivers cooling water and is provided with a heat dissipating structure. [Prior Art] A general vehicle is usually designed to reduce the operating temperature of the engine by using a cooling system that mainly includes an electric water pump that can pump cooling water and has a water immersing mechanism, and sends the cooling water to the engine. The cooling circuit, because the water pump of the electric water pump will generate high temperature during operation, so some pumps will design a heat dissipation structure. Referring to Fig. 1 ' is a cross-sectional view of the new patent No. M363517, the water pump disclosed in the patent mainly comprises: an inner casing u, a casing seat around the outer casing 11 and jointly defining a cooling space 12 13. A docking station 14 that interfaces with the inner and outer housings U, 13, a water-repellent mechanism 15 that is disposed between the inner housing 11 and the docking seat 14, and a group that is mounted on the right side of the 5-well connector 14 and The adapters 14 collectively define a water guiding cover 17 for a flow guiding space 16. The housing base 13 has an end wall ΐ 3 ι and an annular projection 132 projecting from the end wall 131 to the cooling space 12 , and the inner housing 11 has a mounting hole m corresponding to the annular projection 132 . The water-repellent mechanism 15 has a sleeve 151 which is laterally disposed between the mounting hole 111 of the inner casing and the connecting seat 14, and one of the sleeves 151 is mounted on the sleeve 151.
一〜哪求/X 154， 及内殼座11間的定子155，所; 個與轉子153連動地結合並位在 154，以及一個安裝在該套筒ι51 5’所述銜接座14並具有一個連通 201118259 該冷卻空間12及導流空間16的冷卻通道i 4丨，該導流空間 16則是具有一個入水口 161及一出水口 162。 虽轉子153受到電力驅動帶動扇葉座154沿著一送水 方向旋轉時，冷卻水會由入水口 161進入該導流空間16, 再由出水口 162送出，而在冷卻水進出該導流空間16的過 程中，有部分的冷卻水會經由冷卻通道141流入冷卻空間 12’目的在於協助汲水機構μ散熱。 刖述新型專利雖然具有較佳的散熱效果，但是就製造 的角度’該水栗必需先以鑄造方式成型該外殼座13、内殼 座11、銜接座14以及導水蓋17，然後將汲水機構15先裝 设在内殼座11内，再將該組合體組裝在外殼座13内部，之 後再裝設該銜接座14及導水蓋17，由於前述專利的内、外 威座11、13的縱身較長’因此，當内、外殼座11、13在相 互套接時不太容易精確對位，組裝上比較不方便。亦即， 則述新型專利雖然具有散熱的效果，但其需要的模具數量 較多’組裝時也比較困難。 【發明内容】 本發明之目的是提供一種組裝及製造容易之水泵。 本發明的水泵包含：一機殼，以及一個安裝在該機殼 内部的汲水機構，該機殼包括一基座，以及一個和該基座 十接的導Jc蓋，其中该基座具有一個界定出一安裝空間的 内圍繞壁、一個一體連接並圍繞該内圍繞壁的外圍繞壁， 以及一個鄰近該導水蓋的架設環壁，其中該外圍繞壁的長 度小於内圍繞壁，所述導水蓋具有一個和該基座之外圍繞 201118259 壁對接並且和内、外圍繞壁共同界定出一冷卻空間的延伸 圍壁，以及一個界定一導流空間的導水壁。而該汲水機構 包括一個架設在該基座之安裝空間内的驅動單元，以及一 個受到該驅動單元驅動而沿著一送水方向轉動的扇葉座’ 該扇葉座並位在該導水蓋之導流空間内。 本發明的有益功效在於：藉在導水蓋上設置與基座之 外圍繞壁對接的延伸圍壁，可以縮短該基座之外圍繞壁的 大伸長度，以方便一體鑄造成型該基座，前述結構亦可增 進汲水機構組裝時的方便性。 【實施方式】 有關本發明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較佳實施例的詳細說明中，將可清楚 的呈現。 參閲圖2、3，本發明水泵之一較佳實施例包含：一機 殼20,以及一個安裝在該機殼2〇内部並可電動汲水的汲水 機構21。該機殼20並包括：一個基座3、一個固定地安裝 在該基座3 —側的端蓋4、一個與該基座3對接並與端蓋4 分別位在基座3相反側的導水蓋5，以及一控制箱蓋6。 本實施例的基座3是由金屬材料一體鑄造成型，並具 有.一個圍繞一中心軸線且界定出一安襞空間3〇的内圍繞 壁31、一個一體自該内圍繞壁31突出的外圍繞壁32、一 環鄰近6亥導水蓋5且自内圍繞壁31往中央突出的架設環壁 34，以及一個跨越内、外圍繞壁31、32且徑向突出的控制 箱壁35。 201118259 其中，該内圍繞壁31具有一段與該架設環壁％接連 的第-壁段3H ’以及-段厚度大約是第—^段3ιι之二分 之—的第二壁段312’在本實施财，該第—壁段3ιι的厚 度大約是8毫米(匪)’該第二壁段312的厚度則以4毫米為 較佳’所述第-壁段311的長度L1大約是整個内圍繞壁3ι 長度L2的三分之二。即經由發明人實際測試發現，本發明 之第-壁段312的厚度若為2毫米時，水栗在接近端蓋* 部位的散熱效果比較差，而當該第二壁段312料度增厚 度4毫米時，其散纽率大約可提高25%，推測原因，可 月匕疋-玄第一壁段312之厚度增加後，可以吸收安裝空間％ 内部較多的熱源，同時往外快速擴散。 又本實施例之外圍繞壁32具有—個平行對應該内圍繞 壁31之第-壁段311的圍壁部321、一個垂直連接該圍壁 部32i及第-壁段311的連接部322,以及一個自該圍壁部 32i往徑向外端突出的對接框部奶。在本實施例中，該外 圍繞壁32的長度L3大約是第一壁段311之長度u的二分 之一，亦即，從製造容易度作考量，本實施例之外圍繞壁 32的長度L3相對於第一壁段311的長度u乃以4〇〜6〇%為 佳’並以50%為較佳。 本實施例之架設環壁34具有一環朝向端蓋4並圍繞中 心軸線的插設槽341 ’而該控制箱壁35是跨越在外圍繞壁 32及部分之内圍繞壁31的第二壁段312，其並和外圍繞壁 32的部分外表面共同界定出一個開口朝上的控制容室35】 ，又該基座3還具有一個貫穿該控制容室351及安裝空間 201118259 30的電線通道36。 本實施例之端蓋4是藉數支螺絲4〇固定地對接在該基 座3的一側，即位在圖3的右側，該端蓋4並包括一個圓 形之端壁41、一個自該端壁41的外周圍往該内圍繞壁31 大伸對接的對接蓋壁42，以及一個自該端壁41往安裝空間 30内突出的端蓋突環43，上述端蓋4之對接蓋壁42的厚 度相同於該基座3之第二壁段312的厚度。 本實施例的導水蓋5包括：一個圍繞該中心轴線並和 外圍繞壁32之圍壁部321對接的延伸圍壁51，以及一個自 該延伸圍壁51 —體突出並界定出一導流空間5〇的導水壁 52 ’在該延伸圍壁51、基座3之内、外圍繞壁3丨、32間並 界定出一個環形的冷卻空間53。其中該導水壁52具有一個 位在中央的入水管部521、一個呈螺旋狀圍繞該入水管部 521的出水管部522,以及一個連通該導流空間5〇及冷卻 空間53的冷卻通道523。而該導流空間5〇具有一個對應該 % 入水管部521的入水口 501 ’以及一個對應該出水管部522 的出水口 502。 本實施例之控制箱蓋6是藉數支螺絲6〇安裝在該基座 3的控制箱壁35上’用以封閉該控制容室35 i。 本實施例的没水機構21包括一個安裝在該安裝空間3〇 内的驅動單元210，以及一個受該驅動單元21 〇驅動而沿著 —送水方向旋轉的扇葉座214。該驅動單元21〇具有一個橫 向架設在該基座3之插設槽341及端蓋突環43之間的套筒 21丨、一個安裝在該套筒211内部的轉子213，以及一個環 201118259 套在該套筒211之外周圍的定子215，而用來控制該汲水機 構21作動的電路板、微動開關等等的電子零件則是安裝在 該基座3的控制容室351内，用來連通電子零件及驅動單 元210的電線則可經由該電線通道刊。由於本發明之汲水 機構21為已知技術’不再詳述其結構及作動原理。 本實施例之水泵在製$時，#先以缚造方式各別成型 該基座3、端蓋4及導水蓋5，然後將沒水機構21的驅動 早疋210安裝在該基座3的安裝空間3〇内再將端蓋4固 定在該基座3的右侧’即可將驅動單a 21()穩固地架設在 安裝空間30内。 而該扇葉座214是連動地和驅動單元21〇結合，並且 突出於該基座3的架設環壁34，而用來控制驅動單元 及扇葉座214的電子零件，則是安裝在該基座3的控制容 室351内，最後將導水蓋5對接在基座3的一側，同時將 控制箱蓋6組裝在基座3的控制箱壁35上，即完成該水系 的組合。 當沒水機構之驅動單元21()受到電力㈣而旋轉時 ’將帶動扇葉I 214沿著送水方向旋轉，此時冷卻水將由 入水口 50!吸入導流空間5〇,最後由出水口皿送出。而 在冷卻水進出料流M 5G的過财，會有部分的冷卻水 經由冷卻通道523流科卻空間53，亦即，在冷卻水循環 的過程中，制制冷卻空間53的冷卻水來協助沒水機構 21散熱。由於舰水機構21如何運作及散熱為已知技術， 不再說明。 201118259 值得說明的是，本實施例除了具有散熱效果外，更可 藉由機殼20結構的改變，而達到製造及組裝容易之目的。 亦即’-般㈣鑄造-體成型的物件，料造品中需要預 留狹長、環形的空間時，告猙职办Ββ 形空間越長、越窄，鑄造的a stator 155 between the inner casing 11 and the inner casing 11 is coupled to the rotor 153 and positioned at 154, and a coupling seat 14 mounted on the sleeve ι51 5' and having a The cooling space 12 and the cooling passage i 4 of the flow guiding space 16 are connected to the 201118259, and the guiding space 16 has a water inlet 161 and a water outlet 162. When the rotor 153 is driven by the electric drive to rotate the blade seat 154 in a water supply direction, the cooling water enters the flow guiding space 16 from the water inlet 161, and is sent out by the water outlet 162, and the cooling water enters and exits the flow guiding space 16 During the process, part of the cooling water flows into the cooling space 12' via the cooling passage 141 in order to assist the water-repellent mechanism to dissipate heat. Although the novel patent has a better heat dissipation effect, the angle of manufacture is that the water chestnut must first be molded into the outer casing 13, the inner casing 11, the adapter seat 14, and the water guiding cover 17, and then the water-repellent mechanism. 15 is first installed in the inner casing 11, and the assembly is assembled inside the outer casing 13, and then the connecting seat 14 and the water guiding cover 17 are installed, because the inner and outer seats 11 and 13 of the aforementioned patent are extended. Longer, therefore, it is less convenient to assemble when the inner and outer casings 11, 13 are not easily aligned accurately when they are nested with each other. That is, although the new patent has the effect of dissipating heat, it requires a large number of molds, which is difficult to assemble. SUMMARY OF THE INVENTION It is an object of the present invention to provide a water pump that is easy to assemble and manufacture. The water pump of the present invention comprises: a casing, and a water-repellent mechanism mounted inside the casing, the casing comprising a base, and a guiding Jc cover connected to the base, wherein the base has a An inner surrounding wall defining an installation space, an outer surrounding wall integrally connected to and surrounding the inner surrounding wall, and an erecting ring wall adjacent to the water guiding cover, wherein the outer surrounding wall has a length smaller than the inner surrounding wall, the water guiding The cover has an extended wall that abuts the wall of 201118259 outside the base and defines a cooling space with the inner and outer surrounding walls, and a water guiding wall defining a flow guiding space. The water-repellent mechanism includes a driving unit that is mounted in the installation space of the base, and a blade seat that is driven by the driving unit to rotate in a water supply direction. The blade seat is located at the water guiding cover. Within the diversion space. The beneficial effect of the invention is that by providing an extending wall on the water guiding cover that abuts the surrounding wall outside the base, the large elongation of the surrounding wall outside the base can be shortened, so as to facilitate the integrally casting of the base, the aforementioned The structure also enhances the ease of assembly of the drowning mechanism. The above and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention. Referring to Figures 2 and 3, a preferred embodiment of the water pump of the present invention comprises: a casing 20, and a water immersion mechanism 21 mounted inside the casing 2 and electrically decanterable. The casing 20 includes: a base 3, an end cover 4 fixedly mounted on the side of the base 3, a water guiding body abutting the base 3 and the end cover 4 respectively located on the opposite side of the base 3 Cover 5, and a control box cover 6. The base 3 of the present embodiment is integrally molded from a metal material and has an inner surrounding wall 31 surrounding a central axis and defining an ampoule space 3〇, and an outer surrounding body integrally protruding from the inner surrounding wall 31. The wall 32, a ring-shaped annular wall 34 adjacent to the 6-well water-conducting cover 5 and projecting from the inner surrounding wall 31, and a control box wall 35 projecting radially around the inner and outer surrounding walls 31, 32. 201118259 wherein the inner surrounding wall 31 has a first wall section 3H' connected to the erecting ring wall % and a second wall section 312' having a section thickness of about two-third of the first section The thickness of the first wall segment 3 ιι is about 8 mm. The thickness of the second wall segment 312 is preferably 4 mm. The length L1 of the first wall segment 311 is about the entire inner surrounding wall 3 ι. Two-thirds of the length L2. That is, it has been found through actual testing by the inventors that when the thickness of the first wall segment 312 of the present invention is 2 mm, the heat dissipation effect of the water chestnut near the end cover* portion is relatively poor, and when the second wall segment 312 is increased in thickness, At 4 mm, the divergence rate can be increased by about 25%. It is speculated that the thickness of the first wall section 312 of the Moonlight-Xuan can be increased to absorb more heat inside the installation space and rapidly spread outward. Further, the surrounding wall 32 has a surrounding wall portion 321 which is parallel to the first wall portion 311 of the inner surrounding wall 31, and a connecting portion 322 which vertically connects the surrounding wall portion 32i and the first wall portion 311. And a butt frame milk protruding from the surrounding wall portion 32i toward the radially outer end. In the present embodiment, the length L3 of the outer surrounding wall 32 is approximately one-half of the length u of the first wall section 311, that is, the length of the surrounding wall 32 outside the present embodiment, taking into consideration the ease of manufacture. The length u of L3 with respect to the first wall segment 311 is preferably 4 〇 to 6 〇% and is preferably 50%. The erecting ring wall 34 of the present embodiment has a groove 341 ′ that faces the end cap 4 and surrounds the central axis, and the control box wall 35 is a second wall section 312 that surrounds the wall 31 around the outer surrounding wall 32 and a portion. It also defines an opening-facing control chamber 35 together with a portion of the outer surface of the outer surrounding wall 32. The base 3 also has a wire passage 36 extending through the control chamber 351 and the mounting space 201118259 30. The end cover 4 of the embodiment is fixedly docked on one side of the base 3 by a plurality of screws 4, that is, on the right side of FIG. 3, and the end cover 4 includes a circular end wall 41, one from The outer peripheral portion of the end wall 41 extends to the inner peripheral wall 31 to abut the abutting cover wall 42 and an end cap ring 43 projecting from the end wall 41 into the mounting space 30, and the abutment cover wall 42 of the end cover 4 The thickness is the same as the thickness of the second wall section 312 of the base 3. The water guiding cover 5 of the present embodiment includes: an extending surrounding wall 51 surrounding the central axis and abutting the surrounding wall portion 321 of the outer surrounding wall 32, and a body extending from the extending surrounding wall 51 and defining a diversion flow The water guiding wall 52' of the space 5 is defined between the extending wall 51, the inside of the base 3, and the outer surrounding walls 3, 32 and defining an annular cooling space 53. The water guiding wall 52 has a water inlet portion 521 located at the center, a water outlet portion 522 spirally surrounding the water inlet portion 521, and a cooling passage 523 communicating with the flow guiding space 5 and the cooling space 53. The flow guiding space 5A has a water inlet 501' corresponding to the % water inlet portion 521 and a water outlet 502 corresponding to the water outlet portion 522. The control box cover 6 of this embodiment is mounted on the control box wall 35 of the base 3 by means of a plurality of screws 6'' for closing the control chamber 35i. The water-removing mechanism 21 of the present embodiment includes a drive unit 210 installed in the installation space 3, and a blade holder 214 which is driven by the drive unit 21 to rotate in the water supply direction. The driving unit 21A has a sleeve 21 横向 transversely disposed between the insertion groove 341 and the end cover ring 43 of the base 3, a rotor 213 mounted inside the sleeve 211, and a ring 201118259 The stator 215 around the sleeve 211, and the electronic components of the circuit board, the micro switch, etc., for controlling the operation of the water immersing mechanism 21 are mounted in the control chamber 351 of the base 3 for Wires connecting the electronic components and the drive unit 210 can be published via the wire channel. Since the water immersion mechanism 21 of the present invention is a known technique, its structure and operation principle will not be described in detail. When the water pump of the embodiment is manufactured, the base 3, the end cover 4 and the water guide cover 5 are separately formed in a restraining manner, and then the driving mechanism 210 of the water-free mechanism 21 is installed on the base 3. The drive cover 3 is fixed to the right side of the base 3 in the installation space 3, and the drive unit a 21 () can be stably mounted in the installation space 30. The blade seat 214 is coupled to the driving unit 21A in a linked manner, and protrudes from the mounting ring wall 34 of the base 3, and the electronic components for controlling the driving unit and the blade seat 214 are mounted on the base. In the control chamber 351 of the seat 3, the water guiding cover 5 is finally docked on one side of the base 3, and the control box cover 6 is assembled on the control box wall 35 of the base 3, that is, the combination of the water system is completed. When the drive unit 21 () of the waterless mechanism is rotated by the electric power (4), the fan blade I 214 will be rotated in the water supply direction, and the cooling water will be sucked into the flow space 5 by the water inlet 50! Send it out. In the case where the cooling water enters and exits the stream M 5G, part of the cooling water flows through the cooling passage 523 but the space 53 is cleaned, that is, during the cooling water circulation, the cooling water of the cooling space 53 is prepared to assist. The water mechanism 21 dissipates heat. Since the ship water mechanism 21 operates and dissipates heat as a known technique, it will not be described. 201118259 It should be noted that in addition to the heat dissipation effect, the embodiment can be easily manufactured and assembled by changing the structure of the casing 20. That is, the '-- (four) casting-body-formed object, when it is necessary to reserve a narrow and circular space in the material, the longer and narrower the Ββ-shaped space is, the cast
材料越不容易完整的流到模具的每個角落，故其成型時的 困難度就越高。而本發明該機殼2〇的設計，除了將元件的 數量由習知的四個減少為三個外，其主要設計理念是將構 成冷卻空間53的外壁部分—分為二，並且將料壁部分各 別成型在基座3及導水蓋5 1，上述結構的改變不僅在水 栗的設計上為前所未以的創新，還可以改善鑄造成型 料不容易流到模具之各個角度的缺失，因此，本發明該項 設計確實可以提高元件成型時的容易度。 另一方面，本發明在安裝該汲水機構21時可以輕易 地將驅動單元21〇架設在基座3的安裝空間3g内㈣用 端蓋4固定該驅動單元21〇的右端。因此，本發明藉由改 變機殼20的結構，不但可間化構件、提高構件成型的容 易度’還具有組裝方便的功效。 惟以上所述者，僅為本發明之較佳實施例而已，當不 能以此限定本發明實施之範圍，即大凡依本發明申請^利 範圍及發明說明内容所作之簡單的等效變化與修飾，皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是公告編號M363517之新型專利的組合剖視圖； 圖2是本發明水泵之一較佳實施例的立體分解圖；及 201118259 圖3是該較佳實施例之一組合剖視圖。The less easily the material flows to each corner of the mold, the more difficult it is to form. The design of the casing 2 of the present invention, in addition to reducing the number of components from the conventional four to three, is mainly designed to divide the outer wall portion constituting the cooling space 53 into two, and to divide the wall. Partially formed in the base 3 and the water-conducting cover 5 1, the above-mentioned structural changes are not only an unprecedented innovation in the design of the water chestnut, but also can improve the lack of casting molding materials that do not easily flow to the various angles of the mold. Therefore, the design of the present invention can indeed improve the ease of molding of the component. On the other hand, in the present invention, the driving unit 21 can be easily mounted in the mounting space 3g of the base 3 when the water-repellent mechanism 21 is mounted. (4) The right end of the driving unit 21A is fixed by the end cover 4. Therefore, the present invention has the effect of facilitating assembly by changing the structure of the casing 20, not only to refine the member, but also to improve the ease of forming the member. The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made in accordance with the scope of the invention and the description of the invention. All remain within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing a combination of a novel patent of the publication No. M363517; FIG. 2 is an exploded perspective view of a preferred embodiment of the water pump of the present invention; and 201118259 FIG. 3 is a sectional view showing a combination of the preferred embodiment. .
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【主要元件符號說明】 20 機殼 41 端壁 21 沒水機構 42 對接蓋壁 210 驅動單元 43 端蓋突環 211 套筒 5 導水蓋 213 轉子 50 導流空間 214 扇葉座 501 入水口 215 定子 502 出水口 3 基座 51 延伸圍壁 30 安裝空間 52 導水壁 31 内圍繞壁 521 入水管部 311 第一壁段 522 出水管部 312 第二壁段 523 冷卻通道 32 外圍繞壁 53 冷卻空間 321 圍壁部 6 控制箱蓋 322 連接部 60 螺絲 323 對接框部 L1 長度 34 架設環壁 L2 長度 341 插設槽 L3 長度 35 控制箱壁 351 控制容室 36 電線通道 4 端蓋 40 螺絲 11[Main component symbol description] 20 Enclosure 41 End wall 21 Waterless mechanism 42 Butt cover wall 210 Drive unit 43 End cap ring 211 Sleeve 5 Water guide cover 213 Rotor 50 Guide space 214 Fan seat 501 Water inlet 215 Stator 502 Water outlet 3 Base 51 Extension wall 30 Installation space 52 Water guide wall 31 Inner wall 521 Water inlet pipe section 311 First wall section 522 Outlet pipe section 312 Second wall section 523 Cooling passage 32 Outer surrounding wall 53 Cooling space 321 Surrounding wall Part 6 Control box cover 322 Connection 60 Screw 323 Butt frame L1 Length 34 Erection of ring wall L2 Length 341 Insert slot L3 Length 35 Control box wall 351 Control chamber 36 Wire channel 4 End cap 40 Screw 11