TWI745875B - Rotary electric machine - Google Patents

Rotary electric machine Download PDF

Info

Publication number
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
Authority
TW
Taiwan
Prior art keywords
rotor
cooling liquid
electric machine
stator
cylindrical portion
Prior art date
Application number
TW109106368A
Other languages
Chinese (zh)
Other versions
TW202034610A (en
Inventor
藤久保誠
Original Assignee
日商本田技研工業股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日商本田技研工業股份有限公司 filed Critical 日商本田技研工業股份有限公司
Publication of TW202034610A publication Critical patent/TW202034610A/en
Application granted granted Critical
Publication of TWI745875B publication Critical patent/TWI745875B/en

Links

Images

Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

A cooling liquid (CL) is simultaneously jetted from a stator side jetting hole (107) and a rotor side jetting hole (108, 110) that are formed in a liquid path (100) of the cooling liquid (CL) formed on an inside on a bottom surface side of a motor cover (20), toward a coil (34) of a stator (36) and an inner space of a bottomed cylindrical section (30) of a rotating shaft (14) externally fitted with a rotor (44). An inside of the rotor (44) communicates with an intake hole (111, 112, 113) formed in an inner side surface of the bottomed cylindrical section (30), and has formed therein a liquid path (121, 122, 123, 116) that extends to a release hole (131, 132) of an end plate (48, 50).

Description

旋轉電機Rotating motor

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 cooling system 70 of a vehicle 12 equipped with a motor 10 as an embodiment of a rotating electric machine. The vehicle 12 is, for example, an electric motorcycle. FIG. 2 is a partial enlarged view showing the flow of the cooling liquid inside the motor 10. FIG. 3 is a partial cross-sectional view focusing on the direction perpendicular to the axis of the liquid flow path of the cooling liquid inside the motor cover 20 of the motor 10. 4 is a partial cross-sectional view focusing on the direction orthogonal to the axis of the liquid flow path of the cooling liquid inside the rotor 44 of the motor 10.

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 motor 10 of the vehicle 12 is basically composed of a base portion 16, a motor body 18 and a motor cover 20.

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 motor housing 22 is composed of a base portion 16 and a motor cover 20, and a motor body 18 is arranged in an internal space (internal space of the motor housing 22) formed by the base portion 16 and the motor cover 20.

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 shaft 14 is provided along the axial direction of the motor 10 (base portion 16). The rotating shaft 14 is composed of the following components: a shaft portion 26, which is pivotally supported by a ball bearing 24 provided on the base portion 16, and a bottomed cylindrical portion 30, which is fixed to the shaft portion 26 by a nut 28. The motor cover 20 side extends the front end. The rotating shaft 14 is engaged with a reducer (not shown) of the vehicle 12.

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 motor body 18 is composed of the following components: a stator 36 in which a coil 34 wound around a yoke 32 is arranged in a ring shape (FIG. 4 ); and a rotor 44 in which a magnet 40 is embedded in the yoke 38 in the axial direction. The stator 36 is fixed to the base portion 16 with a bolt 49 via a bracket 46. The rotor 44 is fitted to the outer peripheral side surface of the bottomed cylindrical portion 30 constituting the rotating shaft 14.

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 yoke 38 of the rotor 44 are clamped by the end plates 48, 50, one end plate 48 is supported by the outer peripheral side of the bottomed cylindrical portion 30 and the flange portion 60, and the other end plate 50 It is supported and fixed by the outer peripheral side surface of the bottomed cylindrical portion 30 and the nut 62.

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 resolver rotor 56 is fixed to the outer periphery of the bottom surface side of the bottomed cylindrical portion 30 constituting the rotating shaft 14, and is fixed to the base portion 16 of the motor housing 22 so as to face the resolver rotor 56 Resolver stator 58.

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 shaft 14 and the motor body 18 to the base portion 16, by mounting the motor cover 20 on the base portion 16 via bolts 64, the motor body 18 can be arranged in the motor housing 22. space.

[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 cooling system 70 of the vehicle 12 equipped with the motor 10] The cooling system 70 includes a liquid flow passage 100 for cooling liquid formed inside the bottom surface side (X2 direction in FIG. 1) of the motor cover 20.

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 liquid flow passage 100 in the motor cover 20 is composed of the following components: a linear liquid flow passage 104 having a supply port 102, and from the supply port 102 through the inlet liquid flow passage 103 toward the center of the shaft, wherein , The supply port 102 is supplied with cooling liquid from an electric pump not shown. In this embodiment, for example, oil that is also used for lubrication is supplied; 104 is in communication, and extends in the circumferential direction from the intersection of the inlet liquid flow channel 103 and the linear liquid flow channel 104.

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 shaft 14 is provided at the front end of the linear liquid flow channel 104, and a central injection hole (rotor-side injection hole) 110 is provided at a position offset from the central injection hole 108 . One of the central spray hole 108 and the central spray hole 110 may be used, but it needs to be provided at a position where the cooling liquid CL is sprayed into the inner space of the bottomed cylindrical portion 30.

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 liquid flow channel 106 is provided with a plurality of injection holes (stator side injection holes) 107 for injecting the cooling liquid CL on the inner surface side of the space at approximately equal intervals along the circumference and parallel to the axial direction. . The spray hole 107 needs to be provided at a position where the cooling liquid CL is sprayed to the coil 34.

[搭載有馬達10之車輛12之冷卻系統70的作用] [The role of the cooling system 70 of the vehicle 12 equipped with the motor 10] (1)轉子44之冷卻 (1) Cooling of rotor 44

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 supply port 102 of the liquid channel 100 passes through the inlet liquid channel 103 and flows through the linear liquid channel 104. Spray from the central spray hole 108 and the central spray hole 110 toward the inner space of the motor 10 (FIG. 2 ).

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 central spray hole 108 faces the center of the inner bottom surface of the bottomed cylindrical portion 30 (the axial center of the rotating shaft 14). In addition, the cooling liquid CL sprayed from the central spray hole 110 is sprayed to a position of the inner bottom surface deviated from the center of the inner bottom surface of the bottomed cylindrical portion 30. The cooling liquid CL sprayed to the inner bottom surface of the bottomed cylindrical portion 30 flows toward the inner peripheral surface of the bottomed cylindrical portion 30 by centrifugal force.

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, suction holes 111, 112 (Fig. 4), and 113 are radially provided on the inner peripheral surface of the bottomed cylindrical portion 30 at three positions along the axis.

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 suction holes 111, 112, 113 are connected to one end of the radial liquid flow channels 121, 122, 123 provided in the yoke 38 of the rotor 44, and the liquid flow channels 121, 122 The other end side of, 123 is connected to the liquid channel 116 parallel to the magnet 40 and axially arranged in the yoke 38 of the rotor 44. The two axial ends of the liquid flow channel 116 are communicated with the discharge holes 131 and 132 provided in the end plates 48 and 50. The discharge holes 131 and 132 communicate with the internal spaces facing the sides of both bottom surfaces of the rotor 44.

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 supply port 102 of the liquid flow channel 100 from the electric pump (not shown) and sprayed from the central injection hole 108 and the central injection hole 110 to the inner space of the bottomed cylindrical portion 30 It flows toward the inner peripheral surface of the bottomed cylindrical portion 30 by centrifugal force, and then flows along the suction holes 111, 112, 113 and the liquid passages 121, 122, 123 by centrifugal force, and converges in the liquid passage 116, Then, the liquid is discharged from the liquid channel 116 toward the internal space of the motor 10 through the discharge holes 131 and 132. With such a flow of the cooling liquid CL, the rotor 44 (the yoke 38 and the magnet 40 embedded in the yoke 38) is cooled.

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 discharge holes 131, 132 of the end plates 48, 50 provided on the both bottom sides of the cylindrical rotor 44 toward the inner space of the motor 10 directly drops or touches It descends after the rotating shaft 14 or the stator 36, and is accumulated in the oil pan 120 (FIG. 1). The cooling liquid CL accumulated in the oil pan 120 is pumped by an electric pump, and exchanges heat through a radiator (not shown), and then is supplied to the supply port 102. In this way, the rotor 44 is mainly directly cooled.

(2)定子36之冷卻 (2) Cooling of stator 36

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 supply port 102 of the liquid channel 100 from an electric pump (not shown) and sprayed in the axial direction from the injection hole 107 (also refer to FIG. 3) and the stator 36 as shown in FIG. 2 Among the coils 34 except for the coils 34 cooled by the cooling liquid CL of the oil pan 120 (the three coils 34 in the lower part of the Z2 direction in Fig. 4), the coils 34 (in Fig. 4, except for the lower three coils 34) The remaining 9 coils 34) are in direct contact to be cooled.

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 coil 34 and cools the coil 34 further follows the coil 34 to cool the coil 34 and then drops from the coil 34 and accumulates in the oil pan 120. The cooling liquid CL stored in the oil pan 120 is pumped by an electric pump, and exchanges heat through a radiator (not shown), and then is supplied to the supply port 102.

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 side injection hole 107 and the rotor side injection holes 108 and 110 of the liquid flow channel 100 formed in the cooling liquid CL formed inside the bottom surface side of the motor cover 20 face the stator 36 at the same time. The inner space of the coil 34 and the bottomed cylindrical portion 30 of the rotating shaft 14 with the rotor 44 embedded outside is sprayed with a cooling liquid CL.

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 rotor 44 is formed a liquid flow communicating with the suction holes 111, 112, 113 formed on the inner surface of the bottomed cylindrical portion 30 and extending to the discharge holes 131, 132 of the end plates 48, 50 The passages 121, 122, 123, and 116, therefore, can effectively cool the rotor 44 from the inside by the cooling liquid CL flowing through the liquid flow passages 121, 122, 123, and 116.

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 coil 34 of the stator 36, the yoke 38 of the rotor 44, and the embedded magnet 40 (FIG. 4), which are the main heat sources, can be directly cooled at the same time. Therefore, the cooling system 70 of the motor 10 can be improved. Cooling efficiency.

[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 cooling system 70A in a vehicle 12A equipped with a motor 10A as a rotating electric machine of Modification 1. FIG.

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 cooling system 70A of the motor 10A of the vehicle 12A of Modification 1, the collar portion 60 of the bottomed cylindrical portion 30 fixed to the rotating shaft 14 is integrally provided with an annular protrusion extending in the center direction. 130.

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 annular protrusion 130, a recessed portion 133 is formed in the cross section of the inner surface of the bottomed cylindrical portion 30 in which the rotor 44 is embedded outside in the axial direction. With the recessed portion 133, it becomes easy to accumulate the cooling liquid CL collected on the inner surface of the bottomed cylindrical portion 30 by centrifugal force, and most of the cooling liquid CL collected on the inner side of the bottomed cylindrical portion 30 The suction holes 111, 112, 113, and 116 are discharged from the discharge holes 131, 132, so that the cooling effect can be improved.

＜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。 <Modification 2> 6 is a partial cross-sectional view showing the cooling system 70B in a vehicle 12B equipped with a motor 10B as a rotating electric machine of Modification 2. FIG.

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***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 cooling system 70B of the motor 10B of the vehicle 12B of the modification 2, compared to the cooling system 70A of the modification 1, the liquid flow path 100 of the cooling liquid CL formed inside the bottom surface side of the motor cover 20A is additionally formed to bulge to The hollow rod-shaped portion 134 of the inner space of the bottomed cylindrical portion 30 is provided with a plurality of injection holes 136 on the front end side of the hollow rod-shaped portion 134.

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 injection hole 136 provided in the hollow rod-shaped portion 134 is provided in the axial direction and communicates with the injection hole in the axial direction, and four are provided in the axial orthogonal direction (the cross section in the axial orthogonal direction is a cross).

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 injection hole 136 of the hollow rod-shaped portion 134 so as to enter and exit the inner space of the bottomed cylindrical portion 30, the cooling liquid CL can be more reliably directed toward the suction hole of the bottomed cylindrical portion 30 of the rotating shaft 14 The internal space where 111, 112, and 113 are located jets.

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 injection hole 136 provided at the front end side of the hollow rod-shaped portion 134, the cooling liquid CL can be reliably injected to the inner bottom surface and the inner surface of the bottomed cylindrical portion 30 of the rotating shaft 14.

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 injection hole 136 is provided with only the injection hole facing the inner surface side of the bottomed cylindrical portion 30 of the rotating shaft 14, a certain cooling effect can be achieved. The same applies to Modification 3 described below.

<變形例3> <Modification 3>

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 cooling system 70C in a vehicle 12C equipped with a motor 10C as a rotating electric machine as a modification 3. FIG.

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***部138的底面。In the cooling system 70C of the motor 10C of the vehicle 12C of the modified example 3, compared to the cooling system 70B of the modified example 2, a hollow rod-shaped portion 134A separated from the motor cover 20B is formed. In addition, the hollow rod-shaped portion 134A is fixed to the bottom surface of the cylindrical raised portion 138 of the motor cover 20B via the seal 140.

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 portion 134A, the same effect as the modification 2 can be achieved, and mass production (punching) of the motor cover 20B and the hollow rod-shaped portion 134A can be easily performed.

[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***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***(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:***部 140:密封件 CL:冷卻液體10, 10A, 10B, 10C: Motor 12, 12A, 12B, 12C: vehicles 14: Rotation axis 16: Abutment 18: Motor body 20, 20A, 20B: motor cover 22: Motor housing 24: Ball bearing 26: Shaft 28: Nut 30: Cylinder with bottom 32, 38: yoke 34: Coil 36: stator 40: Magnet 44: Rotor 46: Bracket 48, 50: end plate 49: Bolt 56: resolver rotor 58: Resolver stator 60: 锷部 62: Nut 64: Bolt 70, 70A, 70B, 70C: cooling system 100: Liquid flow path 102: supply port 103: Inlet liquid flow path 104: Straight liquid flow channel 106: C-shaped liquid flow path 107, 108, 110, 136: injection hole 111, 112, 113: suction hole 116, 121, 122, 123: liquid flow path 120: oil pan 130: protrusion 131, 132, 133: discharge hole 133: Concave 134, 134A: hollow rod 138: Prominence 140: Seal CL: Cooling liquid

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 Modification 2. FIG. FIG. 7 is a partial cross-sectional view showing a cooling system in a vehicle equipped with a motor as a rotating electric machine of Modification 3. FIG.

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)

一種旋轉電機，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；複數個定子側噴射孔(107)，其等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)。 A rotating electric machine is provided with: a motor body (18), which is composed of a stator (36) with coils (34) arranged in a ring shape, and coaxially arranged inside the stator (36) and generated by the stator (36) A cylindrical rotor (44) that rotates through excitation; 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) are 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); a plurality of stator side injection holes (107), which Etc. are formed in the liquid flow path (100), and spray the cooling liquid (CL) toward the stator (36); and rotor-side spray holes (108, 110, 136), which spray the cooling liquid toward the rotor (44) (CL). 如請求項1之旋轉電機，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。 The rotating electric machine of claim 1, wherein the rotor (44) is fixed to the outer peripheral side of the bottomed cylindrical portion (30) of the rotating shaft (14), and the rotor-side injection holes (108, 110, 136) are provided At a position where the cooling liquid (CL) is sprayed toward the inner peripheral side of the bottomed cylindrical portion (30). 如請求項2之旋轉電機，其中，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)。 The rotating electric machine of claim 2, wherein the inner peripheral surface of the opening side end of the bottomed cylindrical portion (30) is provided with a ring-shaped protrusion (130) facing the axial center direction. 如請求項2之旋轉電機，其中，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)係被形成於***至 上述有底圓筒部(30)之內部空間之中空棒狀部(134、134A)，於該中空棒狀部(134、134A)之前端部側設有複數個上述轉子側噴射孔(136)。 The rotating electric machine of claim 2, wherein the liquid flow path (100) of the cooling liquid (CL) formed inside the bottom surface side of the motor cover (20A, 20B) is formed from the bulge to The inner space of the bottomed cylindrical portion (30) has a hollow rod-shaped portion (134, 134A), and a plurality of the rotor-side injection holes (136) are provided on the front end side of the hollow rod-shaped portion (134, 134A) . 如請求項4之旋轉電機，其中，上述中空棒狀部(134A)係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。 The rotating electric machine of claim 4, wherein the hollow rod-shaped portion (134A) is formed separately from the liquid flow path (100) of the cooling liquid (CL) formed inside the bottom side of the motor cover (20B). 如請求項4或5之旋轉電機，其中，設於上述中空棒狀部(134、134A)之前端部側的複數個噴射孔(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。 The rotating electric machine of claim 4 or 5, wherein a plurality of injection holes (136) provided on the front end side of the hollow rod-shaped portion (134, 134A) are provided so that the cooling liquid (CL) faces the bottomed The position of the inner peripheral side of the cylindrical portion (30). 如請求項6之旋轉電機，其中，設於上述中空棒狀部(134、134A)之前端部側的複數個噴射孔(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)之內底面的位置。 The rotating electric machine of claim 6, wherein the plurality of injection holes (136) provided on the front end side of the hollow rod-shaped portion (134, 134A) are not provided to cause the cooling liquid (CL) to face the bottomed circle In addition to the position of the inner peripheral side surface of the cylindrical portion (30), it is also provided at a position where the cooling liquid (CL) faces the inner bottom surface of the bottomed cylindrical portion (30).
TW109106368A 2019-02-28 2020-02-27 Rotary electric machine TWI745875B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019035177A JP7233966B2 (en) 2019-02-28 2019-02-28 Rotating electric machine
JP2019-035177 2019-02-28

Publications (2)

Publication Number Publication Date
TW202034610A TW202034610A (en) 2020-09-16
TWI745875B true TWI745875B (en) 2021-11-11

Family

ID=72265338

Family Applications (1)

Application Number Title Priority Date Filing Date
TW109106368A TWI745875B (en) 2019-02-28 2020-02-27 Rotary electric machine

Country Status (3)

Country Link
JP (1) JP7233966B2 (en)
CN (1) CN111628612A (en)
TW (1) TWI745875B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2024081806A (en) * 2021-03-23 2024-06-19 株式会社アイシン Rotating Electric Machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
TW202034610A (en) 2020-09-16
JP2020141475A (en) 2020-09-03
JP7233966B2 (en) 2023-03-07
CN111628612A (en) 2020-09-04

Similar Documents

Publication Publication Date Title
US20160233744A1 (en) Rotary electric machine
JP4651488B2 (en) Engine generator cooling structure
EP2434160B1 (en) Pump
CN103620918A (en) Cooling structure of rotary electric machine
JP2010022148A (en) Outer rotor type vehicular generator
US20180262068A1 (en) Rotary electric machine
KR20150051682A (en) Cooling structure of oil cooling motor
CN109790854B (en) Electric compressor
CN111425409B (en) Internal liquid cooling isolated disc type brushless electronic water pump
TWI745875B (en) Rotary electric machine
JP2018038099A (en) Electric motor
JP6190910B1 (en) Rotating electric machine
WO2020176572A1 (en) Electric machine with internal cooling passageways
JP2014204608A (en) Rotary electric machine
US20120013206A1 (en) Cooling System and Method for an Electric Machine Module
US10516320B2 (en) Cooling system for an electric motor
JP2001045714A (en) Permanent magnet generator and manufacture thereof
CN210093024U (en) Oil-cooled motor
JP2019097241A (en) Cooling structure of dynamo-electric generator
JP4896201B2 (en) Fuel supply device
JP6743748B2 (en) Power unit
US20210006114A1 (en) Rotary electric machine for internal combustion engine and rotor thereof
JP2019161832A (en) Motor and fan motor
US11655827B2 (en) Pump device
CN111756179B (en) Motor and electric vehicle having the same