WO2019200635A1 - 电机壳体冷却密封结构 - Google Patents
电机壳体冷却密封结构 Download PDFInfo
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- WO2019200635A1 WO2019200635A1 PCT/CN2018/086308 CN2018086308W WO2019200635A1 WO 2019200635 A1 WO2019200635 A1 WO 2019200635A1 CN 2018086308 W CN2018086308 W CN 2018086308W WO 2019200635 A1 WO2019200635 A1 WO 2019200635A1
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- motor housing
- cooling
- sealing structure
- sealing
- cooling water
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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
Definitions
- the invention belongs to the technical field of motor cooling, and in particular relates to a motor housing cooling and sealing structure.
- an object of the present invention is to provide a motor housing cooling and sealing structure to solve the problems of poor quality, low efficiency, and high cost brought about by the conventional cast molded housing.
- a motor housing cooling and sealing structure comprises a motor housing and a cooling water channel disposed in the motor housing, wherein the cooling water channel is distributed in an S-shaped structure in a week of the motor housing, the electric A sealing structure for sealing the cooling water channel is disposed on both end faces of the casing, and an outer surface of the motor casing is provided with a water inlet and a water outlet communicating with both ends of the cooling water channel.
- the cooling water channel comprises a plurality of axial water channels distributed in the circumferential direction, each of the axial water channels extending in the axial direction and sequentially alternately communicating at the front and back ends through the turning channel, wherein the turning channel is located at the front end
- the end of the motor housing is an open structure, and the sealing structure is located outside the turning passage for sealing the turning passage to form the cooling water passage for reciprocating folding back.
- the sealing structure comprises a ring groove disposed on an end surface of the motor housing and communicating with each of the turning passages, and a sealing ring is disposed in the ring groove.
- the sealing ring is an aluminum ring which is fixed in the ring groove by welding and supported by a support surface at the bottom of the ring groove.
- the sealing structure comprises a plurality of end recesses disposed on the end surface of the motor housing and communicating with each of the turning passages and a plurality of sealing blocks received in the end recesses.
- the sealing block is an aluminum block that is fixed in the end groove by welding and supported by a support surface at the bottom of the end groove.
- the plurality of end grooves are all arcuate and the center line is on the same circumference.
- the water inlet and the water outlet are disposed at the same side end or both side ends of the motor housing.
- the invention has the advantages and beneficial effects that the invention passes through a cooling water passage which flows through the casing in a S-shaped form, and the structure and the molding method effectively solve the molding problem of the motor casing, thereby improving the yield and reducing the cost. .
- the invention processes a groove at both ends of the motor casing, and the groove forms a passage of the coolant on the one hand, and an aluminum ring or an aluminum block is welded in the groove on the other hand to ensure the sealing of the cooling channel and avoid cooling. Liquid leakage.
- the invention has the advantages of simple structure and easy expansion, and the length of the casing can be adjusted according to the actual use without modifying the mold, and the processing technology is simple, the quality is reliable, and the efficiency is high.
- Figure 1 is a perspective view of the present invention
- Figure 2 is a cross-sectional view of the present invention
- FIG. 3 is an enlarged view of I in Figure 2;
- FIG. 4 is a schematic structural view of an end portion of a motor housing according to an embodiment of the present invention.
- FIG. 5 is a schematic structural view of an end portion of a motor casing according to another embodiment of the present invention.
- 1 is the motor housing, 11 is the ring groove, 2 is the sealing ring, 3 is the cooling water channel, 31 is the axial water channel, 32 is the turning channel, 4 is the water inlet, 5 is the water outlet, 6 is the sealing block .
- the existing motor housing usually adopts an integrated casting method, but the casting sand hole, the air hole, the shrinkage and the like have an influence on the yield of the product.
- the present invention provides a cooling structure for a motor housing, which flows through a cooling channel of the housing in the form of an S-shape.
- This structure and forming method effectively solve the motor.
- the molding problem of the housing improves the yield and reduces the cost.
- the present invention provides a motor housing cooling and sealing structure, comprising a motor housing 1 and a cooling water channel 3 disposed in the motor housing 1.
- the cooling water channel 3 is distributed in an S-shaped structure.
- One end of the casing 1 is provided with a sealing structure for sealing the cooling water channel 3 on both end faces of the motor casing 1.
- the outer surface of the motor casing 1 is provided with a water inlet 4 and a communicating with both ends of the cooling water channel 3. Nozzle 5.
- the cooling water channel 3 includes a plurality of axial water channels 31 distributed along the circumferential direction.
- Each of the axial water channels 31 is disposed along the axial direction and alternately communicates through the turning passages 32 at the front and back ends.
- the turning passage 32 is located at the end of the motor housing 1 and has an open structure.
- the sealing structure is located outside the turning passage 32 for sealing the turning passage 32 to form a reciprocating F-type cooling water passage 3.
- the water inlet 4 and the water outlet 5 are provided at the same side end or both ends of the motor housing 1.
- the sealing structure includes a ring groove 11 disposed on both end faces of the motor housing 1, and the ring groove 11 communicates with each of the turning passages 32 of the cooling water channel 3.
- a seal ring 2 for closing the turning passage 32 is provided in the ring groove 11.
- the seal ring 2 is an aluminum ring which is fixed in the ring groove 11 by welding, and the bottom of the ring groove 11 is provided with a support surface for supporting the seal ring 2.
- the bottom of the ring groove 11 is designed with an aluminum ring mounted support surface for the purpose of limiting the position of the welded aluminum ring and providing support for the aluminum ring during welding to meet the welding process.
- the purpose of welding the aluminum ring is to block the cooling water channel 3 and prevent the coolant from overflowing.
- the sealing structure includes a plurality of end grooves and receiving portions which are disposed on the end faces of the motor housing 1 and communicate with the turning passages 32 of the cooling water channel 3.
- the bottom of the end groove is provided with a support surface for supporting the sealing block 6.
- the plurality of end grooves are all arcuate and the center line is on the same circumference.
- the sealing block 6 is an aluminum block, and the aluminum block is fixed in the end groove by welding.
- the segmented aluminum block can be better applied to the motor casing of different sectional shapes.
- the purpose of welding the aluminum block is to block the cooling water channel 3 and prevent the coolant from overflowing.
- the motor housing cooling sealing structure provided by the invention has an axial water channel integrally formed in the motor housing 1 , and grooves (turning passages) are formed at both ends, and the grooves form a passage of the coolant on the one hand, and the other
- an aluminum ring or an aluminum block is placed on the outside of the groove, and the aluminum ring or the aluminum block is welded to the casing to ensure the sealing of the cooling water channel and avoid leakage of the coolant.
- Two holes are formed in the outer surface of the motor casing 3 as the water inlet 4 and the water outlet 5, and the water inlet 4 and the water outlet 5 communicate with the inlet and the outlet of the cooling water channel 3, respectively, so that the cooling liquid can be circulated and cooled.
- the purpose of the housing is formed in the outer surface of the motor casing 3 as the water inlet 4 and the water outlet 5, and the water inlet 4 and the water outlet 5 communicate with the inlet and the outlet of the cooling water channel 3, respectively, so that the cooling liquid can be circulated and cooled.
- the motor housing of the present invention cools the sealing structure, the cooling liquid in the cooling water channel 3 moves in the axial direction, is folded back at the end, flows through the motor housing 1 in the form of an S-type, and the cooling water channel 3 is squeezed.
- the pressure type housing is machined in the end to machine the turning passage 32 of the cooling water channel 3, and the two ends of the motor housing 1 are welded by means of two aluminum rings to ensure the sealing of the cooling water channel 3.
- the structure of the cooling water channel 3 is simple and easy to expand, and the length of the motor casing 1 can be adjusted according to actual use without modifying the mold, and the processing process is simple, the quality is reliable, and the efficiency is high.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
一种电机壳体冷却密封结构,包括电机壳体(1)及设置于电机壳体(1)内的冷却水道(3),冷却水道(3)以S型结构分布在电机壳体(1)的一周,电机壳体(1)两端端面上设有用于密封冷却水道(3)的密封结构,电机壳体(1)的外表面设有与冷却水道(3)两端连通的进水口(4)和出水口(5)。冷却液以S形式流经壳体一周的冷却水道(3),有效的解决电机壳体(1)的成型问题,提高了成品率,降低了成本。
Description
本发明属于电机冷却技术领域,特别涉及一种电机壳体冷却密封结构。
发明背景
电机使用时会产生大量的热量,若不及时排出电机壳体外部,聚集的热量会造成电机定子组件、转子组件温度过高,从而转子磁钢退磁、定子线包烧毁,影响电机的正常运转,使用寿命缩短,所以必须通过散热结构来使得温度稳定在电机各零部件能够承受的范围内。原有的电机壳体水道形式通常为一体铸造,这种铸造方式,容易造成产品缺陷,产品合格率降低,如砂眼、气孔等。同时也存在排砂困难、效率较低、成本较高等不足。现急需一种有效避免上述铸造风险,同时又能提高产品合格率,降低成本的电机壳体散热结构。
发明内容
针对上述问题,本发明的目的在于提供一种电机壳体冷却密封结构,以解决现有通常铸造成型壳体所带来的质量差、效率低和成本较高等问题。
为了实现上述目的,本发明采用以下技术方案:
一种电机壳体冷却密封结构,包括电机壳体及设置于所述电机壳体内的冷却水道,所述冷却水道以S型结构分布在所述电机壳体的一周,所述电机壳体两端端面上设有用于密封所述冷却水道的密封结构,所述电机壳体的外表面设有与所述冷却水道两端连通的进水口和出水口。
优选地,所述冷却水道包括多个沿周向分布的轴向水道,各所述轴向水道均沿轴向延伸、且在正反两端通过转折通道依次交替连通,所述转折通道位于所述电机壳体的端部、且为敞开式结构,所述密封结构位于所述转折通道的外侧,用于密封所述转折通道,以形成往复折返的所述冷却水道。
优选地,所述密封结构包括设置于所述电机壳体端面上与各所述转折通道连通的环槽,所述环槽内设有密封环。
优选地,所述密封环为铝环,所述铝环通过焊接方式固定在所述环槽内、且通过所述环槽底部的支撑面支撑。
优选地,所述密封结构包括设置于所述电机壳体端面上与各所述转折通道连通的多个端部凹槽及容置于各所述端部凹槽内的多个密封块。
优选地,所述密封块为铝块,所述铝块通过焊接方式固定在所述端部凹槽内、且通过所述端部凹槽底部的支撑面支撑。
优选地,多个所述端部凹槽均为弧形结构、且中心线位于同一圆周上。
优选地,所述进水口和所述出水口设置于所述电机壳体的同侧端部或两侧端部。
本发明的优点及有益效果是:本发明通过以S字形形式流经壳体一周的冷却水道,这种结构及成型方式有效的解决电机壳体的成型问题,提高了成品率,降低了成本。
本发明在电机壳体两端加工出凹槽,凹槽一方面形成冷却液的通道,另一方面在凹槽内通过焊接方式放置铝环或铝块,保证冷却水道的密封性,避免冷却液外漏。
本发明结构简单,易于扩展,可根据实际使用情况调整壳体长度而不修改模具,加工工艺简单、质量可靠,效率高。
附图简要说明
通过阅读下文优选实施方式的详细描述,各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的,而并不认为是对本发明的限制。而且在整个附图中,用相同的参考符号表示相同的部件。在附图中:
图1为本发明的轴测图;
图2为本发明的剖视图;
图3为图2中I处放大图;
图4为本发明一实施例中电机壳体端部结构示意图;
图5为本发明另一实施例中电机壳体端部的结构示意图。
图中:1为电机壳体,11为环槽,2为密封环,3为冷却水道,31为轴向水道,32为转折通道,4为进水口,5为出水口,6为密封块。
实施本发明的方式
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例,然而应当理解,可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反,提供这些实施例是为了能够更透彻地理解本公开,并且能够将本公开的范围完整的传达给本领域的技术人员。
现有的电机壳体通常采用一体式铸造方式,但铸造砂眼、气孔、缩松等给产品的合格率带来了影响。
针对现有一体式铸造壳体的不足问题,本发明提供了一种电机壳体冷却结构,以S型的形式流经壳体一周的冷却水道,这种结构及成型方式有效的解决电机壳体的成型问题,提高了成品率,降低了成本。
为了使本发明的目的、技术方案和优点更加清楚,下面结合附图和具体实施例对本发明进行详细描述。
如图1所示,本发明提供的一种电机壳体冷却密封结构,包括电机壳体1及设置于电机壳体1内的冷却水道3,冷却水道3以S型结构分布在电机壳体1的一周,电机壳体1两端端面上设有用于密封冷却水道3的密封结构,电机壳体1的外表面设有与冷却水道3两端连通的进水口4和出水口5。
如图2-3所示,冷却水道3包括多个沿周向间隔分布的轴向水道31,各轴向水道31均沿轴向布设、且在正反两端通过转折通道32依次交替连通,转折通道32位于电机壳体1的端部、且为敞开式结构,密封结构位于转折通道32外侧,用于密封转折通道32,以形成往复折返S型的冷却水道3。
进水口4和出水口5设置于电机壳体1的同侧端部或两端。
如图3-4所示,本发明的一实施例中,密封结构包括设置于电机壳体1的两端端面上的环槽11,环槽11与冷却水道3的各转折通道32连通,环槽11内设有用于封闭转折通道32的密封环2。
密封环2为铝环,铝环通过焊接方式固定在环槽11内,环槽11的底部设有用于支撑密封环2的支撑面。环槽11的底部设计有铝环安装的支撑面,目的是限制焊接铝环的位置,并提供焊接时对铝环的支撑从而满足焊接工艺。焊接铝环的目的是为了堵住冷却水道3,防止冷却液外溢。
如图5所示,本发明的另一实施例中,密封结构包括设置于电机壳体1的两端端面上与冷却水道3的各转折通道32连通的多个端部凹槽及容置于各端部凹槽内的密封块6,端部凹槽的底部设有用于支撑密封块6的支撑面。多个端部凹槽均为弧形结构、且中心线位于同一圆周上。
密封块6为铝块,铝块通过焊接方式固定在端部凹槽内,这种分段式的铝块,可以更好的适用于不同截面形状的电机壳体。焊接铝块的目的是为了堵住冷却水道3,防止冷却液外溢。
本发明提供的电机壳体冷却密封结构,在电机壳体1的内部一体成型有轴向水道,两端加工出凹槽(转折通道),凹槽一方面形成冷却液的通道,另一方面在凹槽的外部放置铝环或铝块,铝环或铝块与壳体焊接,保证冷却水道的密封性,避免 冷却液外漏。在电机壳体3的外表面加工两个孔作为进水口4和出水口5,进水口4和出水口5分别与冷却水道3的入口和出口相通,使冷却液能够进行循环流通,达到冷却壳体的目的。
本发明提供的电机壳体冷却密封结构,冷却水道3内的冷却液沿轴向移动,在端部折回,以S型的形式流经电机壳体1一周,这种冷却水道3采用挤压式壳体,在端部用机加工的方式加工出冷却水道3的转折通道32,在电机壳体1的两端端部用两个铝环通过焊接的方式保证冷却水道3的密封。该冷却水道3的结构简单,易于扩展,可根据实际使用情况调整电机壳体1的长度,而不用修改模具,加工工艺简单、质量可靠,效率高。
以上所述仅为本发明的实施方式,并非用于限定本发明的保护范围。凡在本发明的精神和原则之内所作的任何修改、等同替换、改进、扩展等,均包含在本发明的保护范围内。
Claims (8)
- 一种电机壳体冷却密封结构,其特征在于,包括电机壳体(1)及设置于所述电机壳体(1)内的冷却水道(3),所述冷却水道(3)以S型结构分布在所述电机壳体(1)的一周,所述电机壳体(1)两端端面上设有用于密封所述冷却水道(3)的密封结构,所述电机壳体(1)的外表面设有与所述冷却水道(3)两端连通的进水口(4)和出水口(5)。
- 根据权利要求1所述的电机壳体冷却密封结构,其特征在于,所述冷却水道(3)包括多个沿周向分布的轴向水道(31),各所述轴向水道(31)均沿轴向延伸、且在正反两端通过转折通道(32)依次交替连通,所述转折通道(32)位于所述电机壳体(1)的端部、且为敞开式结构,所述密封结构位于所述转折通道(32)的外侧,用于密封所述转折通道(32),以形成往复折返的所述冷却水道(3)。
- 根据权利要求2所述的电机壳体冷却密封结构,其特征在于,所述密封结构包括设置于所述电机壳体(1)端面上与各所述转折通道(32)连通的环槽(11),所述环槽(11)内设有密封环(2)。
- 根据权利要求3所述的电机壳体冷却密封结构,其特征在于,所述密封环(2)为铝环,所述铝环通过焊接方式固定在所述环槽(11)内、且通过所述环槽(11)底部的支撑面支撑。
- 根据权利要求2所述的电机壳体冷却密封结构,其特征在于,所述密封结构包括设置于所述电机壳体(1)端面上与各所述转折通道(32)连通的多个端部凹槽及容置于各所述端部凹槽内的多个密封块(6)。
- 根据权利要求5所述的电机壳体冷却密封结构,其特征在于,所述密封块(6)为铝块,所述铝块通过焊接方式固定在所述端部凹槽内、且通过所述端部凹槽底部的支撑面支撑。
- 根据权利要求5所述的电机壳体冷却密封结构,其特征在于,多个所述端部凹槽均为弧形结构、且中心线位于同一圆周上。
- 根据权利要求1所述的电机壳体冷却密封结构,其特征在于,所述进水口(4)和所述出水口(5)设置于所述电机壳体(1)的同侧端部或两侧端部。
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