TWI745875B - Rotary electric machine - Google Patents
Rotary electric machine Download PDFInfo
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- TWI745875B TWI745875B TW109106368A TW109106368A TWI745875B TW I745875 B TWI745875 B TW I745875B TW 109106368 A TW109106368 A TW 109106368A TW 109106368 A TW109106368 A TW 109106368A TW I745875 B TWI745875 B TW I745875B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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Abstract
Description
本發明係關於一種藉由冷卻液體冷卻轉子及定子之旋轉電機。The present invention relates to a rotating electric machine in which the rotor and the stator are cooled by a cooling liquid.
例如,日本專利第5,158,861號公報揭示有使冷卻油通過設於藉由馬達之轉子而旋轉之轉子側旋轉構件之軸上的油道以冷卻上述轉子之構成、及使冷卻水通過設於安裝馬達之定子之構造體的冷卻水流道以冷卻上述定子之構成(日本專利第5,158,861號公報之[0037]、[0052])。For example, Japanese Patent No. 5,158,861 discloses a configuration in which cooling oil is passed through an oil passage provided on the shaft of a rotor-side rotating member that is rotated by the rotor of the motor to cool the rotor, and cooling water is passed through the installation motor. The cooling water flow channel of the structure of the stator is configured to cool the above-mentioned stator (Japanese Patent No. 5,158,861 [0037], [0052]).
然而,於日本專利第5,158,861號公報所揭示之冷卻構造中,由於分別成為間接地冷卻發熱構件即馬達之轉子(磁性體及磁鐵)及定子之線圈的構造,因此存在冷卻效率低之課題。However, in the cooling structure disclosed in Japanese Patent No. 5,158,861, the heat generating components, namely the rotor (magnetic body and magnet) of the motor and the coil of the stator, are indirectly cooled, respectively. Therefore, there is a problem of low cooling efficiency.
本發明係鑑於上述課題而完成者,其目的在於提供一種可有效地冷卻定子及轉子之旋轉電機。The present invention was made in view of the above-mentioned problems, and its object is to provide a rotating electric machine that can effectively cool the stator and the rotor.
本發明之一態樣之旋轉電機,係具備:馬達本體,其由呈環狀配置有線圈之定子、及同軸配置於上述定子之內側且藉由上述定子產生之激磁而旋轉之圓筒狀之轉子構成;及有底圓筒狀之馬達蓋,其覆蓋上述馬達本體之一主面側;上述旋轉電機具備:冷卻液體(CL)之液體流道,其形成於上述馬達蓋之底面側內部;定子側噴射孔,其形成於上述液體流道,且朝上述定子噴射上述冷卻液體(CL);及轉子側噴射孔,其朝上述轉子噴射上述冷卻液體(CL)。A rotary electric machine according to one aspect of the present invention is provided with a motor body composed of a stator with coils arranged in a ring shape and a cylindrical cylindrical shape arranged coaxially inside the stator and rotated by the excitation generated by the stator A rotor structure; and a cylindrical motor cover with a bottom, which covers a main surface side of the motor body; the rotating electric machine is equipped with: a liquid flow path for cooling liquid (CL) formed inside the bottom surface side of the motor cover; A stator-side injection hole, which is formed in the liquid flow path, and injects the cooling liquid (CL) toward the stator; and a rotor-side injection hole, which injects the cooling liquid (CL) toward the rotor.
根據本發明,自形成於冷卻液體之液體流道之定子側噴射孔及轉子側噴射孔同時噴射冷卻液體,該液體流道係形成於馬達蓋之底面側內部。藉此,可同時冷卻定子與轉子之雙方,可提高旋轉電機整體之冷卻效率。According to the present invention, the cooling liquid is simultaneously sprayed from the stator-side injection holes and the rotor-side injection holes formed in the liquid flow path of the cooling liquid formed inside the bottom surface side of the motor cover. Thereby, both the stator and the rotor can be cooled at the same time, and the cooling efficiency of the entire rotating electric machine can be improved.
上述目的、特徵及優點,根據參照附圖說明之以下之實施形態的說明,應可容易理解。The above objects, features, and advantages should be easily understood from the description of the following embodiments described with reference to the accompanying drawings.
以下,列舉實施形態且參照附圖而對本發明之旋轉電機詳細地進行說明。再者,為了便於理解發明,附圖中之剖面係沿基本中心線以外的線剖切之截面。此外,於附圖中,X1、X2方向顯示軸向即大致水平方向,Z1、Z2方向顯示軸正交方向即大致鉛垂方向。並且,Y1、Y2方向顯示在水平面內與X1、X2方向正交的方向。Hereinafter, the rotating electrical machine of the present invention will be described in detail with reference to the embodiments and the drawings. Furthermore, in order to facilitate the understanding of the invention, the section in the drawings is a section cut along a line other than the basic center line. In addition, in the drawings, the X1 and X2 directions indicate the axial direction, that is, the substantially horizontal direction, and the Z1, Z2 directions indicate the axis orthogonal direction, that is, the substantially vertical direction. In addition, the Y1 and Y2 directions are displayed as directions orthogonal to the X1 and X2 directions in the horizontal plane.
[實施形態]
[構成]
圖1為著眼於搭載有作為實施形態之旋轉電機之馬達10的車輛12之冷卻系統70而顯示之軸向之局部剖視圖。車輛12例如為電動自動二輪機車。圖2為顯示馬達10之內部之冷卻液體的流動之局部放大圖。圖3為著眼於馬達10之馬達蓋20之內部的冷卻液體之液體流道的軸正交方向之局部剖視圖。圖4為著眼於馬達10之轉子44之內部的冷卻液體之液體流道的軸正交方向之局部橫剖視圖。[Implementation form]
[constitute]
FIG. 1 is a partial cross-sectional view in the axial direction, focusing on a
如圖1所示,車輛12之馬達10基本由基台部16、馬達本體18及馬達蓋20構成。As shown in FIG. 1, the
馬達殼22係由基台部16及馬達蓋20構成,於藉由基台部16及馬達蓋20形成之內部空間(馬達殼22之內部空間)配置有馬達本體18。The
此外,沿馬達10(基台部16)之軸線方向設置有旋轉軸14。旋轉軸14係由如下構件構成:軸部26,其由設於基台部16之滾珠軸承24樞軸支撐;及有底圓筒部30,其藉由螺帽28而固定於軸部26朝馬達蓋20側延伸之前端部。旋轉軸14係與車輛12之未圖示之減速機卡合。In addition, a rotating
馬達本體18係由如下構件構成:定子36,其呈環狀(圖4)配置有捲繞於磁軛32之線圈34;及轉子44,其將磁鐵40沿軸向埋入於磁軛38。定子36係經由支架46而藉由螺栓49以固定於基台部16。轉子44嵌合於構成旋轉軸14之有底圓筒部30的外周側面。The
更詳細而言,轉子44之磁軛38之兩端係由端板48、50夾持,一端板48係藉由有底圓筒部30之外周側面與鍔部60所支撐,另一端板50係藉由有底圓筒部30之外周側面與螺帽62而被支撐固定。In more detail, the two ends of the
於構成旋轉軸14之有底圓筒部30的底面部側之外周固定有解角器轉子56,且以與該解角器轉子56對向之方式於馬達殼22之基台部16固定有解角器定子58。A
於將旋轉軸14及馬達本體18組裝於基台部16之狀態下,藉由將馬達蓋20經由螺栓64而安裝於基台部16,藉此可將馬達本體18配置於馬達殼22內的空間。In the state of assembling the rotating
[搭載有馬達10之車輛12之冷卻系統70之構成]
冷卻系統70具備形成於馬達蓋20之底面側(圖1中的X2方向)內部之冷卻液體的液體流道100。[Configuration of the
如圖3所示,馬達蓋20內之液體流道100係由如下構件構成:直線液體流道104,其具有供給口102,且自供給口102通過入口液體流道103而朝向軸中心,其中,該供給口102係自未圖示之電動泵而被供給冷卻液體,於本實施形態中被供給有例如兼用於潤滑的油;及C字狀液體流道106,其與該直線液體流道104連通,且自入口液體流道103與直線液體流道104之交叉部朝圓周方向延伸。
As shown in Fig. 3, the
於直線液體流道104之前端部設有指向旋轉軸14之中心的中心噴射孔(轉子側噴射孔)108、及設於偏離中心噴射孔108之位置的中央噴射孔(轉子側噴射孔)110。中心噴射孔108及中央噴射孔110也可採用其中一個,但需要設於將冷卻液體CL噴射於有底圓筒部30之內部空間的位置。
A central injection hole (rotor-side injection hole) 108 directed to the center of the rotating
另一方面,於C字狀液體流道106上,沿圓周大致等間隔且與軸向平行地設有複數個將冷卻液體CL噴射於空間之內面側的噴射孔(定子側噴射孔)107。噴射孔107需要設於將冷卻液體CL噴射於線圈34之位置。
On the other hand, the C-shaped
如圖2及圖3所示,自電動泵(未圖示)朝液體流道100之供給口102供給(流入)之冷卻液體CL係通過入口液體流道103,且經由直線液體流道104而自中心噴射孔108及中央噴射孔110朝馬達10的內部空間噴射(圖2)。
As shown in Figures 2 and 3, the cooling liquid CL supplied (inflowed) from the electric pump (not shown) to the
於該情況下,自中心噴射孔108噴射之冷卻液體CL朝向有底圓筒部30之內部底面的中心(旋轉軸14之軸中心)位置。此外,自中央噴射孔110噴射之冷卻液體CL被噴射至偏離有底圓筒部30之內部底面的中心之內部底面位置。噴射至有底圓筒部30之內部底面的冷卻液體CL係藉由離心力而朝向有底圓筒部30之內周側面流動。
In this case, the cooling liquid CL sprayed from the
如圖1及圖2所示,於有底圓筒部30之內周側面,分別於沿軸線之3個位置呈放射狀設置有吸入孔111、112(圖4)、113。
As shown in Figs. 1 and 2,
如圖2及圖4所示,吸入孔111、112、113係與設於轉子44之磁軛38內之放射狀液體流道121、122、123的一端側連通,且液體流道121、122、123之另一端側係與平行於磁鐵40且沿軸向設於轉子44之磁軛38內之液體流道116連通。液體流道116之軸向兩端係與設於端板48、50之排出孔131、132連通。排出孔131、132係與面臨轉子44之兩底面側的內部空間連通。
As shown in Figures 2 and 4, the
藉此,自電動泵(未圖示)供給(流入)於液體流道100之供給口102且自中心噴射孔108及中央噴射孔110噴射至有底圓筒部30之內部空間的冷卻液體CL係藉由離心力而朝向有底圓筒部30之內周面流動,然後再藉由離心力,沿吸入孔111、112、113及液體流道121、122、123流動且匯流於液體流道116,然後通過排出孔131、132而自液體流道116朝馬達10的內部空間排出。藉由如此之冷卻液體CL的流動,將轉子44(磁軛38及埋入磁軛38內之磁鐵40)冷卻。
Thereby, the cooling liquid CL supplied (flowed into) into the
自設於圓筒狀之轉子44之兩底面側的端板48、50之排出孔131、132朝馬達10之內部空間排出的冷卻液體CL直接落下,或接觸
於旋轉軸14或定子36之後下降,並蓄積於承油盤120(圖1)。蓄積於承油盤120之冷卻液體CL係藉由電動泵而被汲取,且通過未圖示之散熱器進行熱交換,然後再被供給於供給口102。如此,主要直接冷卻轉子44。
The cooling liquid CL discharged from the
另一方面,自電動泵(未圖示)供給於液體流道100之供給口102且如圖2所示自噴射孔107(也參照圖3)朝軸向噴射之冷卻液體CL係與定子36之線圈34中的除了由承油盤120之冷卻液體CL冷卻的線圈34(圖4中,Z2方向之下部的3個線圈34)外的線圈34(圖4中,除了下部之3個線圈34外之剩餘的9個線圈34)直接接觸而加以冷卻。
On the other hand, the cooling liquid CL supplied to the
直接接觸線圈34而冷卻線圈34之冷卻液體CL進一步沿線圈34而將線圈34冷卻後自線圈34落下並蓄積於承油盤120。蓄積於承油盤120之冷卻液體CL藉由電動泵而被汲取,且通過未圖示之散熱器進行熱交換,然後再供給於供給口102。
The cooling liquid CL that directly contacts the
如上述,根據上述實施形態,自形成於被形成在馬達蓋20之底面側內部之冷卻液體CL的液體流道100之定子側噴射孔107及轉子側噴射孔108、110,分別同時朝向定子36的線圈34及外嵌有轉子44之旋轉軸14之有底圓筒部30的內部空間噴射冷卻液體CL。
As described above, according to the above embodiment, the stator
於該情況下,於轉子44之內部形成有與形成於有底圓筒部30之內側面的吸入孔111、112、113連通且延伸至端板48、50的排出孔131、132之液體流道121、122、123及116,因此,可藉由流經液體流道121、122、123及116之冷卻液體CL而自內部有效地冷卻轉子44。In this case, inside the
藉此,根據上述實施形態,可分別同時直接冷卻作為主要發熱源之定子36的線圈34、轉子44之磁軛38及埋入磁鐵40(圖4),因此可提高馬達10之冷卻系統70的冷卻效率。Thereby, according to the above-mentioned embodiment, the
[變形例] 上述實施形態也可進行如下變形。再者,對與實施形態相同之構成,賦予相同之參照符號,並僅對不同之部分進行說明。[Modifications] The above-mentioned embodiment can also be modified as follows. In addition, the same reference numerals are assigned to the same configuration as that of the embodiment, and only the different parts will be described.
<變形例1>
圖5為顯示搭載有作為變形例1之旋轉電機之馬達10A的車輛12A中著眼於冷卻系統70A之局部剖視圖。<Modification 1>
FIG. 5 is a partial cross-sectional view showing the
於變形例1之車輛12A之馬達10A的冷卻系統70A中,於固定在旋轉軸14之有底圓筒部30的鍔部60之內周側,一體地設有沿中心方向延伸之環狀突起130。In the
藉由設置環狀之突起130,外嵌有轉子44之有底圓筒部30之軸向之內側面截面係形成凹部133。藉由該凹部133,變得容易蓄積藉由離心力而聚集於有底圓筒部30之內側面之冷卻液體CL,且聚集於有底圓筒部30之內側面之冷卻液體CL之絕大部分通過吸入孔111、112、113、116而自排出孔131、132排出,從而可提高冷卻效果。By providing the
<變形例2>
圖6為顯示搭載有作為變形例2之旋轉電機之馬達10B的車輛12B中著眼於冷卻系統70B之局部剖視圖。
<
於變形例2之車輛12B之馬達10B的冷卻系統70B中,相對於變形例1之冷卻系統70A,於形成在馬達蓋20A之底面側內部之冷卻液體CL的液體流道100,另外形成隆起至有底圓筒部30之內部空間的中空棒狀部134,且於該中空棒狀部134之前端部側設有複數個噴射孔136。
In the
設於中空棒狀部134之噴射孔136係於軸向設置一個,且與該軸向之噴射孔連通,而在軸正交方向設置4個(軸正交方向之截面為十字形)。
One
藉由以進出於有底圓筒部30之內部空間的方式設置之中空棒狀部134之噴射孔136,可更確實地將冷卻液體CL朝旋轉軸14之有底圓筒部30的吸入孔111、112、113所位處之內部空間噴射。
By providing the
藉由設於中空棒狀部134之前端部側的噴射孔136,可確實地將冷卻液體CL噴射至旋轉軸14之有底圓筒部30的內底面及內側面。
With the
再者,即使噴射孔136僅設置朝向旋轉軸14之有底圓筒部30的內側面側的噴射孔,也可達成一定的冷卻效果。於以下說明之變形例3中也同樣。
Furthermore, even if the
圖7為顯示搭載有作為變形例3之旋轉電機之馬達10C的車輛12C中著眼於冷卻系統70C之局部剖視圖。
FIG. 7 is a partial cross-sectional view showing the
於變形例3之車輛12C之馬達10C的冷卻系統70C中,相對於變形例2之冷卻系統70B,製作與馬達蓋20B分開之中空棒狀部134A。再者,中空棒狀部134A係經由密封件140而被固定於馬達蓋20B之圓筒狀的隆起部138的底面。In the
藉由分開製造中空棒狀部134A,可達成與變形例2相同的功效,且容易進行馬達蓋20B及中空棒狀部134A之批量生產(沖裁)。By separately manufacturing the hollow rod-shaped
[可根據實施形態掌握的發明] 在此,以下對可根據上述實施形態及變形例1〜3掌握的發明加以記載。再者,為了便於理解,對上述(實施形態及變形例1〜3)中使用於構成要素之符號添加括號,但該構成要素不限於附加該符號者。[Inventions that can be grasped according to the embodiment] Here, the following describes inventions that can be grasped based on the above-mentioned embodiment and Modifications 1 to 3. In addition, in order to facilitate understanding, the symbols used for the constituent elements in the above (Embodiments and Modifications 1 to 3) are added with parentheses, but the constituent elements are not limited to those appended with the symbols.
本發明之旋轉電機係具備:馬達本體(18),其由呈環狀配置有線圈(34)之定子(36)、及同軸配置於上述定子(36)之內側且藉由上述定子(36)產生之激磁而旋轉之圓筒狀的轉子(44)構成;及有底圓筒狀之馬達蓋(20、20A、20B),其覆蓋上述馬達本體(18)的一主面側;該旋轉電機(10、10A〜10C)具備:冷卻液體(CL)之液體流道(100),其形成於上述馬達蓋(20、20A、20B)的底面側內部;定子側噴射孔(107),其形成於上述液體流道(100),且朝上述定子(36)噴射上述冷卻液體(CL);及轉子側噴射孔(108、110、136),其朝上述轉子(44)噴射上述冷卻液體(CL)。The rotating electric machine of the present invention is provided with a motor body (18), which consists of a stator (36) with coils (34) arranged in a ring shape, and a stator (36) coaxially arranged on the inner side of the stator (36) and through the stator (36) A cylindrical rotor (44) that rotates when the excitation is generated; and a bottomed cylindrical motor cover (20, 20A, 20B), which covers a main surface side of the motor body (18); the rotating electric machine (10, 10A~10C) Equipped with: a liquid flow path (100) for cooling liquid (CL), which is formed inside the bottom side of the motor cover (20, 20A, 20B); and a stator side injection hole (107), which forms In the liquid flow path (100), the cooling liquid (CL) is sprayed toward the stator (36); and the rotor-side spray holes (108, 110, 136), which spray the cooling liquid (CL) toward the rotor (44) ).
根據本發明,自形成於冷卻液體(CL)之液體流道(100)之定子側噴射孔(107)及轉子側噴射孔(108、110、136)同時噴射冷卻液體(CL),該液體流道(100)係形成於馬達蓋(20、20A、20B)之底面側內部。藉此,可同時冷卻定子(36)與轉子(44)之雙方,可提高旋轉電機(10、10A〜10C)整體之冷卻效率。According to the present invention, the cooling liquid (CL) is simultaneously injected from the stator side injection holes (107) and the rotor side injection holes (108, 110, 136) formed in the liquid flow channel (100) of the cooling liquid (CL), and the liquid flow The channel (100) is formed inside the bottom side of the motor cover (20, 20A, 20B). Thereby, both the stator (36) and the rotor (44) can be cooled at the same time, and the cooling efficiency of the entire rotating electric machine (10, 10A-10C) can be improved.
其中,上述轉子(44)係固定於旋轉軸(14)之有底圓筒部(30)的外周側面,上述轉子側噴射孔(108、110、136)係設於朝上述有底圓筒部(30)之內周側噴射上述冷卻液體(CL)的位置。藉此,蓄積於旋轉軸(14)之有底圓筒部(30)之內周側的冷卻液體(CL)藉由轉子(44)之旋轉而擴散至整個圓筒內周及底面內周,因此,整個轉子(44)通過旋轉軸(14)而被有效地冷卻。Wherein, the rotor (44) is fixed to the outer peripheral side surface of the bottomed cylindrical portion (30) of the rotating shaft (14), and the rotor-side injection holes (108, 110, 136) are provided facing the bottomed cylindrical portion (30) The position where the cooling liquid (CL) is sprayed on the inner peripheral side. Thereby, the cooling liquid (CL) accumulated on the inner circumference side of the bottomed cylindrical portion (30) of the rotating shaft (14) is diffused to the entire inner circumference of the cylinder and the inner circumference of the bottom surface by the rotation of the rotor (44), Therefore, the entire rotor (44) is effectively cooled by the rotating shaft (14).
另外,於上述有底圓筒部(30)之開口側端部內周面設有朝向軸中心方向的環狀突起(130)。藉此,外嵌有轉子(44)之有底圓筒部(30)之軸向的內側面截面成為凹部(133),冷卻液體(CL)藉由離心力而容易蓄積於該凹部(133),從而可提高冷卻效果。In addition, an annular protrusion (130) facing the axial center direction is provided on the inner peripheral surface of the opening side end of the bottomed cylindrical portion (30). Thereby, the cross section of the axial inner side surface of the bottomed cylindrical portion (30) on which the rotor (44) is embedded becomes a recess (133), and the cooling liquid (CL) is easily accumulated in the recess (133) by centrifugal force. Thereby, the cooling effect can be improved.
並且,形成於上述馬達蓋(20A、20B)之底面側內部之冷卻液體(CL)的液體流道(100)係形成於隆起至上述有底圓筒部(30)之內部空間之中空棒狀部(134、134A),且於該中空棒狀部(134、134A)之前端部側設有上述轉子側噴射孔(136)。藉此,藉由以隆起(進入)至有底圓筒部(30)之內部空間之方式設置的中空棒狀部(134、134A)的噴射孔(136),可更確實地朝旋轉軸(14)之有底圓筒部(30)的內部空間噴射冷卻液體(CL)。In addition, the liquid flow path (100) of the cooling liquid (CL) formed inside the bottom surface side of the motor cover (20A, 20B) is formed in the hollow rod shape from the bulge to the inner space of the bottomed cylindrical portion (30) Part (134, 134A), and the rotor-side injection hole (136) is provided on the front end side of the hollow rod-shaped part (134, 134A). Thereby, the injection hole (136) of the hollow rod-shaped portion (134, 134A) provided so as to bulge (enter) into the inner space of the bottomed cylindrical portion (30) can be directed toward the rotating shaft ( 14) The inner space of the bottomed cylindrical portion (30) is sprayed with cooling liquid (CL).
並且,上述中空棒狀部(134A)也可與形成於上述馬達蓋(20B)之底面側內部的冷卻液體(CL)之液體流道(100)分開形成。藉此,由於不需要與馬達蓋(20B)一體地設置中空棒狀部(134A),因而馬達蓋(20B)的製作變得容易。In addition, the hollow rod-shaped portion (134A) may be formed separately from the liquid flow path (100) of the cooling liquid (CL) formed inside the bottom surface side of the motor cover (20B). Thereby, since there is no need to provide the hollow rod-shaped part (134A) integrally with the motor cover (20B), the manufacture of the motor cover (20B) becomes easy.
此外,較佳為,設於上述中空棒狀部(134、134A)之前端部側的噴射孔(136)係設於使上述冷卻液體(CL)朝向上述有底圓筒部(30)的內周側面之位置。藉此,可直接噴射冷卻液體(CL)而接觸於截面形狀成為凹部(133)的部分,該部分係由外周側面嵌合有轉子(44)之有底圓筒部(30)的內周側面形成,因此可以進一步提高冷卻效果。In addition, it is preferable that the injection hole (136) provided on the front end side of the hollow rod-shaped portion (134, 134A) is provided so that the cooling liquid (CL) is directed toward the inside of the bottomed cylindrical portion (30) The position on the side of the circumference. Thereby, the cooling liquid (CL) can be directly sprayed to contact the part where the cross-sectional shape becomes the recessed portion (133), which is fitted with the inner circumferential surface of the bottomed cylindrical portion (30) of the rotor (44) from the outer circumferential surface Therefore, the cooling effect can be further improved.
此外,亦可為,設於上述中空棒狀部(134、134A)之前端部側的噴射孔(136)係除了設於使上述冷卻液體(CL)朝向上述有底圓筒部(30)之內周側面的位置外,還設於使上述冷卻液體(CL)朝向上述有底圓筒部(30)的內底面的位置。藉此,可將冷卻液體(CL)直接噴射於外嵌有轉子(44)之有底圓筒部(30)的軸向之內側截面的凹部(133)及內底面,因此可進一步提高冷卻效果。In addition, the injection hole (136) provided on the front end side of the hollow rod-shaped portion (134, 134A) may be provided in addition to the one that causes the cooling liquid (CL) to face the bottomed cylindrical portion (30). In addition to the position of the inner peripheral side surface, it is also provided at a position where the cooling liquid (CL) faces the inner bottom surface of the bottomed cylindrical portion (30). By this, the cooling liquid (CL) can be directly sprayed on the recessed portion (133) and the inner bottom surface of the axially inner cross-section of the bottomed cylindrical portion (30) in which the rotor (44) is embedded, so that the cooling effect can be further improved .
再者,本發明不限於上述實施形態,當然可根據本說明書之記載內容,採用各種之構成。In addition, the present invention is not limited to the above-mentioned embodiments, and it is of course possible to adopt various configurations based on the contents described in this specification.
10、10A、10B、10C:馬達
12、12A、12B、12C:車輛
14:旋轉軸
16:基台部
18:馬達本體
20、20A、20B:馬達蓋
22:馬達殼
24:滾珠軸承
26:軸部
28:螺帽
30:有底圓筒部
32、38:磁軛
34:線圈
36:定子
40:磁鐵
44:轉子
46:支架
48、50:端板
49:螺栓
56:解角器轉子
58:解角器定子
60:鍔部
62:螺帽
64:螺栓
70、70A、70B、70C:冷卻系統
100:液體流道
102:供給口
103:入口液體流道
104:直線液體流道
106:C字狀液體流道
107、108、110、136:噴射孔
111、112、113:吸入孔
116、121、122、123:液體流道
120:承油盤
130:突起
131、132、133:排出孔
133:凹部
134、134A:中空棒狀部
138:隆起部
140:密封件
CL:冷卻液體10, 10A, 10B, 10C:
圖1為顯示搭載有作為本實施形態之旋轉電機之馬達的車輛中著眼於冷卻系統之局部剖視圖。
圖2為顯示圖1所示之馬達中之冷卻液體的流動之局部放大圖。
圖3為著眼於圖1所示之馬達之馬達蓋之內部的冷卻液體之液體流道的局部放大圖。
圖4為著眼於圖1所示之馬達之轉子內的冷卻液體之液體流道的局部橫剖視圖。
圖5為顯示搭載有作為變形例1之旋轉電機之馬達的車輛中著眼於冷卻系統之局部剖視圖。
圖6為顯示搭載有作為變形例2之旋轉電機之馬達的車輛中著眼於冷卻系統之局部剖視圖。
圖7為顯示搭載有作為變形例3之旋轉電機之馬達的車輛中著眼於冷卻系統之局部剖視圖。Fig. 1 is a partial cross-sectional view showing a cooling system in a vehicle equipped with a motor as a rotating electric machine of the present embodiment.
FIG. 2 is a partial enlarged view showing the flow of cooling liquid in the motor shown in FIG. 1. FIG.
Fig. 3 is a partial enlarged view focusing on the liquid flow path of the cooling liquid inside the motor cover of the motor shown in Fig. 1.
Fig. 4 is a partial cross-sectional view focusing on the liquid flow path of the cooling liquid in the rotor of the motor shown in Fig. 1.
Fig. 5 is a partial cross-sectional view showing a cooling system in a vehicle equipped with a motor as a rotating electric machine of Modification 1.
FIG. 6 is a partial cross-sectional view showing a cooling system in a vehicle equipped with a motor as a rotating electric machine of
10:馬達 10: Motor
12:車輛 12: Vehicle
14:旋轉軸 14: Rotation axis
16:基台部 16: Abutment
18:馬達本體 18: Motor body
20:馬達蓋 20: Motor cover
22:馬達殼 22: Motor housing
26:軸部 26: Shaft
28:螺帽 28: Nut
30:有底圓筒部 30: Cylinder with bottom
32:磁軛 32: Magnetic yoke
34:線圈 34: Coil
36:定子 36: stator
38:磁軛 38: Magnetic yoke
44:轉子 44: Rotor
46:支架 46: Bracket
48:端板 48: end plate
49:螺栓 49: Bolt
50:端板 50: end plate
60:鍔部 60: 锷部
62:螺帽 62: Nut
70:冷卻系統 70: Cooling system
100:液體流道 100: Liquid flow path
102:供給口 102: supply port
103:入口液體流道 103: Inlet liquid flow path
107:噴射孔 107: Jet Hole
108:噴射孔 108: Jet Hole
110:噴射孔 110: Jet hole
111、112、113:吸入孔 111, 112, 113: suction hole
116、121、122、123:液體流道 116, 121, 122, 123: liquid flow path
131、132:排出孔 131, 132: discharge hole
CL:冷卻液體 CL: Cooling liquid
Claims (7)
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US2648789A (en) * | 1950-01-27 | 1953-08-11 | Wilhelm F Gauster | Liquid-cooled rotary electric machine |
CN1057551A (en) * | 1990-06-15 | 1992-01-01 | 通用电气公司 | The liquid cools of rotor |
TWI303513B (en) * | 2005-06-24 | 2008-11-21 | Univ Nat Kaohsiung Marine | |
JP5158861B2 (en) * | 2008-03-11 | 2013-03-06 | Ntn株式会社 | In-wheel motor drive device |
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JPS51100803U (en) * | 1975-02-08 | 1976-08-13 | ||
JP2008295192A (en) * | 2007-05-24 | 2008-12-04 | Toyota Motor Corp | Rotary electric machine |
JP5088577B2 (en) * | 2008-08-22 | 2012-12-05 | アイシン・エィ・ダブリュ株式会社 | Rotating electric machine |
JP5715299B2 (en) * | 2012-03-30 | 2015-05-07 | 本田技研工業株式会社 | Rotating electric machine |
JP6201650B2 (en) * | 2013-11-06 | 2017-09-27 | 日産自動車株式会社 | Rotor core cooling structure |
US10811939B2 (en) * | 2014-10-28 | 2020-10-20 | Mitsubishi Electric Corporation | Rotating electric machine |
JP6072866B1 (en) * | 2015-08-26 | 2017-02-01 | 三菱電機株式会社 | Rotating electric machine |
WO2018030324A1 (en) * | 2016-08-09 | 2018-02-15 | 日本電産株式会社 | Drive device |
WO2018225878A1 (en) * | 2017-06-05 | 2018-12-13 | 엘지전자 주식회사 | Motor |
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US2648789A (en) * | 1950-01-27 | 1953-08-11 | Wilhelm F Gauster | Liquid-cooled rotary electric machine |
CN1057551A (en) * | 1990-06-15 | 1992-01-01 | 通用电气公司 | The liquid cools of rotor |
TWI303513B (en) * | 2005-06-24 | 2008-11-21 | Univ Nat Kaohsiung Marine | |
JP5158861B2 (en) * | 2008-03-11 | 2013-03-06 | Ntn株式会社 | In-wheel motor drive device |
US20140175920A1 (en) * | 2012-12-18 | 2014-06-26 | Ferrari S.P.A. | Rotating electrical machine for vehicles with liquid cooling |
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