WO2020125113A1 - Cooling water channel structure fixedly connected to motor stator - Google Patents
Cooling water channel structure fixedly connected to motor stator Download PDFInfo
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- WO2020125113A1 WO2020125113A1 PCT/CN2019/107453 CN2019107453W WO2020125113A1 WO 2020125113 A1 WO2020125113 A1 WO 2020125113A1 CN 2019107453 W CN2019107453 W CN 2019107453W WO 2020125113 A1 WO2020125113 A1 WO 2020125113A1
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- WIPO (PCT)
- Prior art keywords
- water
- flow channel
- stator
- cooling
- channel
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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 relates to a cooling water channel structure fixedly connected with a motor stator.
- Circulating water cooling is a commonly used cooling method for motors. By setting a flow channel on the motor casing, the cooling water takes away the heat transferred internally to the outer surface of the casing to achieve the purpose of cooling the stator.
- the flow channel is usually implemented in the following ways: 1. Pre-buried the ring pipe before the casing is poured; 2. Directly obtained by using profiles; 3. Using a material removal method to process a spiral water-cooled flow channel on the blank, and then Made of stitching.
- the maximum outer circle of the end of the stator coil is required to be smaller than the inner diameter of the casing, and an appropriate insulation distance is retained.
- the coil end has special requirements, for example, the axial dimension of the coil end is required, but the radial dimension is not required. In this case, it is required that the outer circle of the coil end must be smaller than the inner diameter of the motor housing and an appropriate safety distance is maintained, otherwise the motor stator cannot be assembled. If the size of the coil end is larger than the inner diameter of the casing, a stepped structure needs to be additionally provided on the motor casing to make room for assembly.
- the present invention is to provide a cooling water channel structure that is fixedly connected to a motor stator in order to solve the above-mentioned problems in the prior art.
- a cooling water channel structure fixedly connected with a motor stator including a casing, a stator, a water cooling flow channel and a pipe joint
- the water cooling flow channel is a tubular structure
- a water cooling channel is provided with an inlet
- the liquid port, the liquid outlet and the spiral cooling water flow channel are provided with a positioning step on the inner wall of the casing, the water cooling flow channel is placed in the casing, and the bottom of the water cooling flow channel is against the positioning step, and the stator is penetrated In the water-cooled flow channel, and the stator and the water-cooled flow channel have an interference fit, both pipe joints pass through the side wall of the casing and are correspondingly screwed to the liquid inlet and the liquid outlet of the water-cooled flow channel.
- a sealing ring is provided at the joint of the pipe joint and the casing.
- the water-cooled runner is made of stainless steel or aluminum alloy.
- the casing is made of carbon steel or cast iron.
- the present invention has the following beneficial effects:
- the present invention uses the water-cooled runner as an independent component. Before the stator coil is placed in the silicon steel sheet slot, it is assembled with the stator silicon steel sheet by interference. Because the cooling water channel is close to the axial dimension of the stator, so The placement of the stator coil has no effect.
- Figure 1 is a structural diagram of the present invention.
- a cooling water channel structure fixedly connected with a motor stator of the present invention includes a casing 1, a stator 2, a water cooling flow channel 3 and a pipe joint 4.
- the water cooling flow channel 3 is a tubular structure and is provided on the water cooling flow channel 3
- a positioning step 11 is provided on the inner wall of the casing 1
- a water cooling flow channel 3 is placed in the casing 1
- the bottom of the water cooling flow channel 3 is in contact with
- the stator 2 is inserted into the water-cooled flow channel 3, and the stator 2 and the water-cooled flow channel 3 have an interference fit.
- Both pipe joints 4 pass through the side wall of the casing 1 and are correspondingly screwed to the water cooling On the inlet and outlet of the flow channel 3.
- the pipe joint 4 and the positioning step 11 jointly position the water-cooled runner 3.
- a sealing ring is provided at the joint of the pipe joint 4 and the casing 1.
- the present invention uses the water-cooled runner as an independent component. Before the stator coil is placed in the silicon steel sheet slot, it is assembled with the stator silicon steel sheet by interference. Because the cooling water channel is close to the axial dimension of the stator, it does not affect the placement of the stator coil. .
- the motor stator is installed into the motor housing together with the water-cooled runner.
- the pipe joint is passed through the reserved hole in the motor shell, and the pipe is screwed on the water-cooled flow channel, and sealed with an O-ring to complete the connection with the external pipeline.
- the water-cooled runner is processed separately and made of stainless steel or aluminum alloy.
- the casing 1 is made of carbon steel or cast iron, and the cost is relatively low, and the material with slightly weak rust resistance, because the cooling water flow path is not related to the motor casing, so there are requirements for the rust prevention of the motor casing reduce.
- stator of the motor and the water-cooled runner are interference assembled to ensure heat dissipation, and the cooperation between the water-cooled runner and the chassis no longer requires an interference fit, and can be set to a transitional fit or a gap fit to facilitate assembly.
- the water-cooled runner is independent of the motor housing, which reduces the material and machining accuracy requirements for the motor housing, and also reduces the effect of the coil end size on the motor housing inner diameter.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
Abstract
A cooling water channel structure fixedly connected to a motor stator, comprising a housing (1), a stator (2), a water cooling flow channel (3), and pipe joints (4). The water cooling flow channel (3) is of a tubular structure, and a liquid inlet, a liquid outlet and a spiral cooling water flow channel (31) are provided on the water cooling flow channel (3). A positioning step (11) is provided on an inner wall of the housing (1), the water cooling flow channel (3) is provided in the housing (1), and the bottom of the water cooling flow channel (3) abuts against the positioning step (11). The stator (2) passes through the water cooling flow channel (3), and the stator (2) is in an interference fit with the water cooling flow channel (3). The two pipe joints (4) both pass through the side wall of the housing (1) and are respectively connected in a threaded manner to the liquid inlet and the liquid outlet of the water cooling flow channel (3). The cooling water channel structure uses the water cooling flow channel (3) as an independent component, and before stator coils are placed in silicon steel sheet grooves, the cooling water flow channel is in an interference fit with stator silicon steel sheets; and as the axial dimension of the cooling water flow channel (31) is close to that of the stator (2), the cooling water flow channel does not affect the placement of the stator coils.
Description
本发明涉及一种与电机定子固连的冷却水道结构。The invention relates to a cooling water channel structure fixedly connected with a motor stator.
循环水冷却是电机常用的降温手段，通过在电机壳上设置流道，使冷却水带走内部传递到机壳外表面的热量，以达到给定子降温的目的。Circulating water cooling is a commonly used cooling method for motors. By setting a flow channel on the motor casing, the cooling water takes away the heat transferred internally to the outer surface of the casing to achieve the purpose of cooling the stator.
流道通常有如下方式来实现：1、在机壳浇筑前预埋好环形管道；2、采用型材直接获得；3、采用去除材料的手段在毛坯料上加工出螺旋型的水冷流道，然后拼接制成。The flow channel is usually implemented in the following ways: 1. Pre-buried the ring pipe before the casing is poured; 2. Directly obtained by using profiles; 3. Using a material removal method to process a spiral water-cooled flow channel on the blank, and then Made of stitching.
直接将水冷流道设计在电机壳上时，则要求定子线圈的端部最大外圆小于机壳内径，且保留适量的绝缘距离。面临线圈端部有特殊要求的场合，例如：对于线圈端部轴向尺寸有要求，而径向尺寸没有要求。这种情况下，要求线圈端部的外圆一定要小于电机壳内径，并且保有适量安全距离，否则电机定子无法实现装配。如果线圈端部的尺寸大于机壳内径，在电机壳上则需要额外设置台阶结构以让出装配空间。When the water-cooled runner is directly designed on the motor casing, the maximum outer circle of the end of the stator coil is required to be smaller than the inner diameter of the casing, and an appropriate insulation distance is retained. Faced with occasions where the coil end has special requirements, for example, the axial dimension of the coil end is required, but the radial dimension is not required. In this case, it is required that the outer circle of the coil end must be smaller than the inner diameter of the motor housing and an appropriate safety distance is maintained, otherwise the motor stator cannot be assembled. If the size of the coil end is larger than the inner diameter of the casing, a stepped structure needs to be additionally provided on the motor casing to make room for assembly.
发明内容：Summary of the invention:
本发明是为了解决上述现有技术存在的问题而提供一种与电机定子固连的冷却水道结构。The present invention is to provide a cooling water channel structure that is fixedly connected to a motor stator in order to solve the above-mentioned problems in the prior art.
本发明所采用的技术方案有：一种与电机定子固连的冷却水道结构，包括机壳、定子、水冷流道和管接头，所述水冷流道为管状结构，在水冷流道上设有进液口、出液口和螺旋状的冷却水流道，在机壳的内壁上设有定位台阶，水冷流道置于机壳内，且水冷流道的底部抵触于定位台阶上，定子穿设于水冷流道内，且定子与水冷流道之间过盈配合，两个管接头均穿过机壳的侧壁并对应螺纹连接在水冷流道的进液口和出液口上。The technical scheme adopted by the present invention is as follows: a cooling water channel structure fixedly connected with a motor stator, including a casing, a stator, a water cooling flow channel and a pipe joint, the water cooling flow channel is a tubular structure, and a water cooling channel is provided with an inlet The liquid port, the liquid outlet and the spiral cooling water flow channel are provided with a positioning step on the inner wall of the casing, the water cooling flow channel is placed in the casing, and the bottom of the water cooling flow channel is against the positioning step, and the stator is penetrated In the water-cooled flow channel, and the stator and the water-cooled flow channel have an interference fit, both pipe joints pass through the side wall of the casing and are correspondingly screwed to the liquid inlet and the liquid outlet of the water-cooled flow channel.
进一步地，所述管接头与机壳的结合处设有密封圈。Further, a sealing ring is provided at the joint of the pipe joint and the casing.
进一步地，所述水冷流道采用不锈钢或铝合金制成。Further, the water-cooled runner is made of stainless steel or aluminum alloy.
进一步地，所述机壳采用碳钢或铸铁制成。Further, the casing is made of carbon steel or cast iron.
进一步地，所水冷流道与机壳之间过渡配合或者间隙配合。Further, there is a transition fit or clearance fit between the water cooling flow channel and the cabinet.
本发明具有如下有益效果：本发明将水冷流道作为一个独立的部件，在定子线圈放置硅钢片槽内之前，与定子硅钢片过盈装配好，因为冷却水道与定子轴向尺寸接近，所以对于定子线圈的安放不构成影响。The present invention has the following beneficial effects: The present invention uses the water-cooled runner as an independent component. Before the stator coil is placed in the silicon steel sheet slot, it is assembled with the stator silicon steel sheet by interference. Because the cooling water channel is close to the axial dimension of the stator, so The placement of the stator coil has no effect.
图1为本发明结构图。Figure 1 is a structural diagram of the present invention.
下面结合附图对本发明作进一步的说明。The present invention will be further described below with reference to the drawings.
如图1，本发明一种与电机定子固连的冷却水道结构，包括机壳1、定子2、水冷流道3和管接头4，水冷流道3为管状结构，在水冷流道3上设有进液口、出液口和螺旋状的冷却水流道31，在机壳1的内壁上设有定位台阶11，水冷流道3置于机壳1内，且水冷流道3的底部抵触于定位台阶11上，定子2穿设于水冷流道3内，且定子2与水冷流道3之间过盈配合，两个管接头4均穿过机壳1的侧壁并对应螺纹连接在水冷流道3的进液口和出液口上。管接头4和定位台阶11共同对水冷流道3进行定位。As shown in FIG. 1, a cooling water channel structure fixedly connected with a motor stator of the present invention includes a casing 1, a stator 2, a water cooling flow channel 3 and a pipe joint 4. The water cooling flow channel 3 is a tubular structure and is provided on the water cooling flow channel 3 There are a liquid inlet, a liquid outlet and a spiral cooling water flow channel 31, a positioning step 11 is provided on the inner wall of the casing 1, a water cooling flow channel 3 is placed in the casing 1, and the bottom of the water cooling flow channel 3 is in contact with On the positioning step 11, the stator 2 is inserted into the water-cooled flow channel 3, and the stator 2 and the water-cooled flow channel 3 have an interference fit. Both pipe joints 4 pass through the side wall of the casing 1 and are correspondingly screwed to the water cooling On the inlet and outlet of the flow channel 3. The pipe joint 4 and the positioning step 11 jointly position the water-cooled runner 3.
为保证密封性，在管接头4与机壳1的结合处设有密封圈。In order to ensure the tightness, a sealing ring is provided at the joint of the pipe joint 4 and the casing 1.
本发明将水冷流道作为一个独立的部件，在定子线圈放置硅钢片槽内之前，与定子硅钢片过盈装配好，因为冷却水道与定子轴向尺寸接近，所以对于定子线圈的安放不构成影响。The present invention uses the water-cooled runner as an independent component. Before the stator coil is placed in the silicon steel sheet slot, it is assembled with the stator silicon steel sheet by interference. Because the cooling water channel is close to the axial dimension of the stator, it does not affect the placement of the stator coil. .
在定子线圈安放后，电机定子连同水冷流道一起，向电机壳内安装。安装完毕后，将管接头穿过电机壳上预留的通孔，与水冷流道上的管螺纹连接，并加以O型圈密封，即完成与外界管道的连接。After the stator coil is placed, the motor stator is installed into the motor housing together with the water-cooled runner. After the installation is completed, the pipe joint is passed through the reserved hole in the motor shell, and the pipe is screwed on the water-cooled flow channel, and sealed with an O-ring to complete the connection with the external pipeline.
水冷流道单独加工，采用不锈钢或铝合金制成。The water-cooled runner is processed separately and made of stainless steel or aluminum alloy.
机壳1采用碳钢或铸铁制成，成本相对较低，且防锈性能稍弱的材料，因为冷却水的流通路径里，与电机壳无关，故对于电机壳的防锈要求有所降低。The casing 1 is made of carbon steel or cast iron, and the cost is relatively low, and the material with slightly weak rust resistance, because the cooling water flow path is not related to the motor casing, so there are requirements for the rust prevention of the motor casing reduce.
如前所述，电机定子与水冷流道为过盈装配，以保证散热，而水冷流道与机壳的配合则不再需要过盈配合，可以设置成过渡配合或者间隙的配合以方便装配。As mentioned above, the stator of the motor and the water-cooled runner are interference assembled to ensure heat dissipation, and the cooperation between the water-cooled runner and the chassis no longer requires an interference fit, and can be set to a transitional fit or a gap fit to facilitate assembly.
水冷流道独立于电机壳，降低对于电机壳的材料和加工精度要求，同时也减小线圈端部尺寸对于电机壳内径尺寸的影响。The water-cooled runner is independent of the motor housing, which reduces the material and machining accuracy requirements for the motor housing, and also reduces the effect of the coil end size on the motor housing inner diameter.
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下还可以作出若干改进，这些改进也应视为本发明的保护范围。The above is only a preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, several improvements can be made without departing from the principles of the present invention, and these improvements should also be regarded as protected range.
Claims (5)
- 一种与电机定子固连的冷却水道结构，其特征在于：包括机壳(1)、定子(2)、水冷流道(3)和管接头(4)，所述水冷流道(3)为管状结构，在水冷流道(3)上设有进液口、出液口和螺旋状的冷却水流道(31)，在机壳(1)的内壁上设有定位台阶(11)，水冷流道(3)置于机壳(1)内，且水冷流道(3)的底部抵触于定位台阶(11)上，定子(2)穿设于水冷流道(3)内，且定子(2)与水冷流道(3)之间过盈配合，两个管接头(4)均穿过机壳(1)的侧壁并对应螺纹连接在水冷流道(3)的进液口和出液口上。A cooling water channel structure fixedly connected with a motor stator is characterized by comprising a casing (1), a stator (2), a water cooling flow channel (3) and a pipe joint (4). The water cooling flow channel (3) is Tubular structure, with liquid inlet, liquid outlet and spiral cooling water channel (31) on the water cooling channel (3), positioning steps (11) on the inner wall of the casing (1), water cooling flow The channel (3) is placed in the casing (1), and the bottom of the water-cooled flow channel (3) abuts on the positioning step (11), the stator (2) passes through the water-cooled flow channel (3), and the stator (2 ) Has an interference fit with the water-cooled runner (3), and the two pipe joints (4) pass through the side wall of the casing (1) and are correspondingly screwed to the liquid inlet and outlet of the water-cooled runner (3) On the mouth.
- 如权利要求1所述的与电机定子固连的冷却水道结构，其特征在于：所述管接头(4)与机壳(1)的结合处设有密封圈。The cooling water channel structure fixedly connected with a motor stator according to claim 1, wherein a sealing ring is provided at the joint of the pipe joint (4) and the casing (1).
- 如权利要求1所述的与电机定子固连的冷却水道结构，其特征在于：所述水冷流道(3)采用不锈钢或铝合金制成。The cooling water channel structure fixedly connected with a motor stator according to claim 1, wherein the water cooling channel (3) is made of stainless steel or aluminum alloy.
- 如权利要求1所述的与电机定子固连的冷却水道结构，其特征在于：所述机壳(1)采用碳钢或铸铁制成。The cooling water channel structure fixedly connected with a motor stator according to claim 1, wherein the casing (1) is made of carbon steel or cast iron.
- 如权利要求1所述的与电机定子固连的冷却水道结构，其特征在于：所水冷流道(3)与机壳(1)之间过渡配合或者间隙配合。The cooling water channel structure fixedly connected to the motor stator according to claim 1, characterized in that the water cooling flow channel (3) and the casing (1) are in transition fit or clearance fit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811552089.7 | 2018-12-18 | ||
| CN201811552089.7A CN109378927A (en) | 2018-12-18 | 2018-12-18 | A kind of cooling water channel structure being connected with motor stator |
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| WO2020125113A1 true WO2020125113A1 (en) | 2020-06-25 |
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| PCT/CN2019/107453 WO2020125113A1 (en) | 2018-12-18 | 2019-09-24 | Cooling water channel structure fixedly connected to motor stator |
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| WO (1) | WO2020125113A1 (en) |
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| CN109378927A (en) * | 2018-12-18 | 2019-02-22 | 南京磁谷科技有限公司 | A kind of cooling water channel structure being connected with motor stator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012023837A (en) * | 2010-07-13 | 2012-02-02 | Ihi Corp | Rotary machine and vehicle |
| CN103904825A (en) * | 2012-12-26 | 2014-07-02 | 现代摩比斯株式会社 | Cooling structure of magnetic bundle motor in axial direction |
| WO2016113565A1 (en) * | 2015-01-15 | 2016-07-21 | Electronica Products Limited | Rotary electric machine |
| CN109378927A (en) * | 2018-12-18 | 2019-02-22 | 南京磁谷科技有限公司 | A kind of cooling water channel structure being connected with motor stator |
| CN209389829U (en) * | 2018-12-18 | 2019-09-13 | 南京磁谷科技有限公司 | A kind of cooling water channel structure being connected with motor stator |
-
2018
- 2018-12-18 CN CN201811552089.7A patent/CN109378927A/en active Pending
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2019
- 2019-09-24 WO PCT/CN2019/107453 patent/WO2020125113A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012023837A (en) * | 2010-07-13 | 2012-02-02 | Ihi Corp | Rotary machine and vehicle |
| CN103904825A (en) * | 2012-12-26 | 2014-07-02 | 现代摩比斯株式会社 | Cooling structure of magnetic bundle motor in axial direction |
| WO2016113565A1 (en) * | 2015-01-15 | 2016-07-21 | Electronica Products Limited | Rotary electric machine |
| CN109378927A (en) * | 2018-12-18 | 2019-02-22 | 南京磁谷科技有限公司 | A kind of cooling water channel structure being connected with motor stator |
| CN209389829U (en) * | 2018-12-18 | 2019-09-13 | 南京磁谷科技有限公司 | A kind of cooling water channel structure being connected with motor stator |
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