CN201994738U - Enclosed self-cooling motor - Google Patents
Enclosed self-cooling motor Download PDFInfo
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- CN201994738U CN201994738U CN2011200490816U CN201120049081U CN201994738U CN 201994738 U CN201994738 U CN 201994738U CN 2011200490816 U CN2011200490816 U CN 2011200490816U CN 201120049081 U CN201120049081 U CN 201120049081U CN 201994738 U CN201994738 U CN 201994738U
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Abstract
本实用新型提供了一种封闭式自冷却电机，包括定子、转子及壳体，定子包括定子铁芯及定子绕组，定子绕组包括位于定子槽内的槽内绕组和位于定子槽外定子铁芯两侧的槽外绕组，在定子槽外绕组上装有冷却管道，管道贴合定子绕组发热部位，直接利用冷却液对流将定子绕组产生热量带走，再经外部热量交换器进行循环散热，在壳体上设有入油口和出油口，并在壳体空腔内循环注入润滑油冷却液，经外部热量交换器将定子铁芯、定子绕组、转子产生的热量带走，也同时起到润滑轴承的作用。通过以上技术方案，可以均匀地控制电机各部分的温升，降低定子槽外绕组的温升，提高电机冷却效果，提高电机的输出扭矩、输出功率，并延长了电机的使用寿命。
The utility model provides a closed self-cooling motor, which includes a stator, a rotor and a casing. The stator includes a stator core and a stator winding. The outer winding on the side of the slot is equipped with a cooling pipe on the outer winding of the stator slot. The pipe is attached to the heating part of the stator winding. There is an oil inlet and an oil outlet on the top, and the lubricating oil coolant is circulated in the cavity of the housing, and the heat generated by the stator core, stator winding, and rotor is taken away by the external heat exchanger, and it also plays a role in lubrication at the same time. The role of bearings. Through the above technical solutions, the temperature rise of each part of the motor can be uniformly controlled, the temperature rise of the outer winding of the stator slot can be reduced, the cooling effect of the motor can be improved, the output torque and output power of the motor can be improved, and the service life of the motor can be extended.
Description
Technical field
The utility model relates to a kind of closed from cooling off motor.
Background technology
Can produce copper loss, core loss, stray loss and mechanical loss equal loss during the drive motors operation, these loss meetings are transformed into heat, if untimely the coming out of heat that produces, can make the temperature rise of motor internal each several part too high, this can have a strong impact on the normal use of electrical machine insulation, motor bearings, magnetic steel of motor.The stator core of closed drive motors, stator winding, rotor have constituted three thermals source of motor internal, wherein stator winding is because the inconsistent winding and the outer winding temperature rise of groove of causing in the stator slot of radiating effect is inconsistent, the heat major part that winding produces in the stator slot can be by stator slot insulation and stator core heat conduction to casing, again by casing outward air-cooled or water-cooled cool off.Because the very thin and stator core coefficient of conductivity height of stator slot insulation, so the heat that winding in the stator slot is produced by heat conduction distributes or reasonable effect is arranged, but the air or the lubricating oil that contact with the outer winding of groove are the low-down materials of conductive coefficient, there is not the good especially fluid of radiating effect that the heat that the outer winding of groove produces is carried out convective exchange again, make that the thermal conduction effect of the outer winding of groove is undesirable, and then can cause tens even tens degree on the interior winding temperature height of the outer ratio of winding stator slot of groove, make that the outer winding position of groove is the weak link of motor cooling.
In the prior art, enclosed motor also has and adopts liquid circulation to charge into motor internal heat is taken away, but circulating cooling liquid there is no fear of contacting with whole windings, and just reduce the mean temperature of winding, the part winding maximum temperaturerise that does not have heat exchange contact there is not fine control, and the maximum temperaturerise height is exactly depended in the insulation use that influences stator winding, so such cooling effect does not have the restriction of fine solution part winding maximum temperaturerise yet.
The utility model content
The utility model is intended to solve that the cooling effect of motor stator part winding in the prior art is bad, and the problem that the winding maximum temperaturerise is too high provides a kind of good heat dissipation effect, low closed from cooling off motor of the outer winding temperature rise of groove.
A kind of closed from cooling off motor, comprise stator, rotor and housing, described stator is positioned on the enclosure interior circumference, stator comprises the stator core that has stator slot and is wrapped in stator winding on the stator slot, described stator winding comprises the groove winding that is positioned at stator slot and is positioned at the outer winding of groove of stator slot external stator core both sides, it is characterized in that, be provided with cooling pipe around stator winding and outside stator slot on the winding outer rim on the radial section of stator, described cooling pipe also comprises outlet spout and goes into the mouth of pipe.
Preferably, described cooling pipe adopts the embedding of heat conduction Embedding Material to be arranged on the outer winding outer rim of described stator slot.
Preferably, being shaped as of described cooling pipe axial cross section " Ω ".
Preferably, the material of described cooling pipe is an iron.
Preferably, be respectively equipped with cooling pipe on the outer winding of the groove of described stator slot external stator core both sides.
Preferably, the radial cross-section of described cooling pipe is circular or oval.
Preferably, form cavity between described stator, rotor and the housing, the oiler and the oil-out that are connected with cavity are arranged on the housing.
Preferably, described heat conduction Embedding Material is an epoxy glue.
In above technical scheme, by on the winding cooling pipe is set outside the stator slot of motor, pipeline approaches the inner heat position, directly utilizes the cooling fluid heat convection that the outer winding heat of stator slot is taken away, again through external cooler circulation and external heat exchange.Simultaneously, set into hydraulic fluid port on the housing, go back other circulation in chassis cavity and inject the lubricating oil cooling fluid, the heat transferred that stator core, stator winding, rotor produce is arrived the external world, play the effect of lubricating bearings simultaneously through the outside heat interchanger.Through the enforcement of this programme, can control the temperature rise of motor various piece equably, reduce the temperature rise of winding inner wire bag, improve the motor cooling effect, improve output torque, the power output of motor, and prolonged the useful life of motor.
Description of drawings
Fig. 1 is the closed from cooling off motor shaft to structure chart of a kind of embodiment of the utility model.
Fig. 2 is the enlarged diagram of A part among Fig. 1.
Fig. 3 is the closed from cooling off motor stator structure figure of a kind of embodiment of the utility model.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
In conjunction with illustrated in figures 1 and 2, closed drive motors for a kind of water proof and dust proof, comprise stator, rotor and housing 4, described stator is positioned on the enclosure interior circumference, described stator, form cavity between rotor and the housing 4, described stator comprises the stator core 2 that has stator slot and is wrapped in stator winding on the stator slot, stator winding comprises the groove winding that is positioned at stator slot and is positioned at the outer winding 3 of groove of stator slot external stator core both sides, described housing 4 also comprises bearing 7 and mechanical oil sealing 8, described bearing 7 is used for the rotating shaft of support rotor, and then keep the support rotor running, described mechanical oil sealing 8 is used for oil sealing, prevents that cold oil from leaking.
The position of placing in the time of with the motor operate as normal, here for convenience of explanation, the end that regulation is exposed machine shaft is a front end, an end corresponding with front end is the rear end, it is the bottom that motor is used to connect the side of carrying the enclosure body workbench, and the motor side corresponding with motor bottom is the motor top.
Described housing 4 is provided with oiler 1 and oil-out 9, wherein, oiler 1 is arranged on housing 4 tops near on the position of electric motor end cap, oil-out 9 is arranged on the position of housing 4 bottoms near motor rear end, 9 one-tenth diagonal settings of oiler 1 and oil-out, path 9 can reach optimal path from oiler 1 to oil-out like this, accelerate in order to make fluid-flow rate, be provided with the device of conveyance fluid at oil-out 9 or oiler 4, in the present embodiment, as a scheme preferably, adopt oil pump at oiler 4 places.
Described cavity is by stator, rotor, housing 4 constitutes, because internal heat is accumulated in the time of work, influence the motor operate as normal, so must in time heat transferred be arrived the motor outside, closed drive motors for water proof and dust proof, motor is by having adopted measures such as mechanical oil sealing, the motor internal sealing property is improved greatly, employing is injected cooling fluid to cavity, in time take away internal heat, preferred in the present embodiment the employing to cavity injected the lubricating oil cooling fluid, utilize the lubricating oil cooling fluid to stator core in the housing cavity, stator winding, the heat that rotor produces transmits heat radiation, the lubricating oil cooling fluid is injected in the cavity, via stator core from oiler 1, stator winding, rotor is flowed out by oil-out 9, and the lubricating oil cooling fluid is taken away motor part heat through motor internal by heat convection, give the bearing lubrication effect simultaneously, owing to the existence of heat conduction Embedding Material 6, strengthened the area of motor stator winding heat convection, improved the effect of motor cooling.
In conjunction with Fig. 3, as main inventive point of the present utility model, the convenient heat that directly the outer winding 3 of groove is produced directly transmits by cooling fluid heat, on the radial section of stator around stator winding and outside stator slot on winding 3 outer rims fixed installation cooling pipe 5, the cooling pipe 5 whole and outer winding 3 outer rims applyings of stator slot adopt the heat conduction Embedding Material that both are fixed together.In order to obtain better radiating effect, preferably, at least one cooling pipe 5 is installed all on the winding 3 outside the groove of stator core both sides, on the outer winding 3 of the groove of stator core both sides a cooling pipe 5 is set respectively in the present embodiment.In addition, the axial cross section of described cooling pipe 5 is not limited to a kind of shape, as long as cooling pipe 5 can be fitted on outer winding 3 outer rims of groove and not influence the work of motor.As a kind of preferred scheme, adopting axial cross section in the present embodiment is the annular cooling pipe of " Ω " shape, such shape, outside not influencing cooling pipe 5 applying grooves in the winding 3, pipeline path is shorter relatively, saves material, can make that again the flow of cooling fluid exchange is greater and faster.Cooling pipe 5 also comprises outlet spout 11 and goes into the mouth of pipe 10, be used in cooling pipe 5, injecting cooling fluid, as a scheme preferably, the described outlet spout 11 and the radial cross-section of going into the mouth of pipe 10 are for circular or oval, outlet spout 11 and go into the mouth of pipe 10 and pass housing 4 and guide to the motor outside, connect with the heat exchanger of outside, the outer winding 3 of stator slot is further dispelled the heat.In order to make cooling fluid in cooling pipe 5, quicken to flow, the mouth of pipe be provided with can conveyance fluid device, in the present embodiment, preferably adopt kinetic pump, be arranged on into the mouth of pipe 10 places, the flowing velocity of accelerating fluid, thus faster internal heat is delivered to the external world by convection current.In the prior art, the heat conduction Embedding Material that extensively adopts 6 is modal to be the organic silicon rubber system and two big classes epoxy systems, and in the present embodiment, described heat conduction Embedding Material 6 is preferably epoxy glue.Cooling pipe 5 can adopt material of the prior art widely, satisfies requirements such as mechanical strength and thermal endurance, as copper, iron, aluminium or the like, preferably adopts iron as material in the present embodiment.
The utility model is closed to be such from the course of work of cooling off motor: in machine operation, because internal heat is accumulated and can be caused inefficiency, even situation such as cisco unity malfunction, inject the lubricating oil cooling fluid by the oiler that is provided with on the electric machine casing to the cavity of motor internal, in order to make the flowing velocity of lubricating oil cooling fluid accelerate, add oil loading pump at oiler, the lubricating oil cooling fluid is by the motor stator core of flowing through like this, stator winding, oil-out behind the rotor from the electric machine casing flows out, connect with the external heat interchanger, heat transferred is arrived the motor outside, although adopt this kind cooling heat dissipation technological means, the heat transferred that can not directly the outer winding of groove be produced is gone out, so on the winding of stator slot external stator core both sides, cooling pipe has been installed, outer winding of groove and cooling pipe has been fixed together by the heat conduction Embedding Material.When the lubricating oil cooling fluid is injected in the circulation of motor cavity, also circulation feeds cooling fluid in cooling pipe, directly carry out exchange heat at the outer winding of stator slot, in time the circulation of the heat on the outer winding of groove by cooling fluid is delivered on the heat exchanger of motor outside and dispels the heat, the mouth of pipe of going at cooling pipe is provided with kinetic pump equally, accelerate flowing of cooling fluid, improve heat transfer efficiency, the use of cooling pipe has improved the motor internal radiating efficiency greatly, the particularly heat conduction of the outer winding of stator slot, directly the heat with the maximum temperaturerise place in time is delivered to the motor outside, not only well solved the restriction of maximum temperaturerise to stator winding, more can reduce the influence of temperature rise, improve operating efficiency, also prolong the useful life of motor to a certain extent machine operation.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200490816U CN201994738U (en) | 2011-02-28 | 2011-02-28 | Enclosed self-cooling motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200490816U CN201994738U (en) | 2011-02-28 | 2011-02-28 | Enclosed self-cooling motor |
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| Publication Number | Publication Date |
|---|---|
| CN201994738U true CN201994738U (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200490816U Expired - Lifetime CN201994738U (en) | 2011-02-28 | 2011-02-28 | Enclosed self-cooling motor |
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| CN (1) | CN201994738U (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065185A (en) * | 2014-06-13 | 2014-09-24 | 北京交通大学 | Multi-channel immersion motor |
| CN107528438A (en) * | 2017-10-19 | 2017-12-29 | 江西南磁电气有限公司 | A kind of cooling totally enclosed type asynchronous machine certainly |
| CN107607258A (en) * | 2017-09-11 | 2018-01-19 | 重庆依凯科技有限公司 | A kind of high temperature resistant pressure gauge |
| CN107733109A (en) * | 2017-10-19 | 2018-02-23 | 江西南磁电气有限公司 | A kind of disc-type permanent magnet motor with cooling rotor structure |
| CN107733129A (en) * | 2017-09-19 | 2018-02-23 | 天津市源泉机电设备制造有限公司 | Oil-filled submersible motor |
| CN109525056A (en) * | 2019-01-14 | 2019-03-26 | 苏州阿福机器人有限公司 | A kind of oil-cooled motor |
| CN110173434A (en) * | 2018-02-20 | 2019-08-27 | 株式会社荏原制作所 | Motor-mount pump |
| CN110266127A (en) * | 2019-06-04 | 2019-09-20 | 华为技术有限公司 | Electric Motors, Motor Cooling Systems and Electric Vehicles |
| CN111169616A (en) * | 2020-02-11 | 2020-05-19 | 无锡斯波机械科技有限公司 | A dual cooling surf pedal electric jet pump powertrain |
| CN111711287A (en) * | 2020-06-29 | 2020-09-25 | 苏州炽优装备科技有限公司 | Efficient heat dissipation method for motor and motor applied by efficient heat dissipation method |
| CN112910181A (en) * | 2021-03-01 | 2021-06-04 | 江苏华频电子科技有限公司 | Brushless motor with high-efficient heat dissipation |
| CN113305621A (en) * | 2021-06-25 | 2021-08-27 | 意特利（滁州）智能数控科技有限公司 | Unclamping cutter mechanism and five-axis head electric spindle |
| CN113572299A (en) * | 2020-04-28 | 2021-10-29 | 中车株洲电力机车研究所有限公司 | Oil-cooled permanent magnet motor and end cover thereof |
| CN114844299A (en) * | 2022-07-01 | 2022-08-02 | 苏州上舜精密工业科技有限公司 | Motor heat dissipation structure, motor with structure and heat dissipation method |
| CN108282056B (en) * | 2018-03-30 | 2024-03-01 | 北京理工大学 | A liquid-cooled drive motor for vehicles |
-
2011
- 2011-02-28 CN CN2011200490816U patent/CN201994738U/en not_active Expired - Lifetime
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065185A (en) * | 2014-06-13 | 2014-09-24 | 北京交通大学 | Multi-channel immersion motor |
| CN104065185B (en) * | 2014-06-13 | 2017-02-15 | 北京交通大学 | Multi-way soaking type motor |
| CN107607258A (en) * | 2017-09-11 | 2018-01-19 | 重庆依凯科技有限公司 | A kind of high temperature resistant pressure gauge |
| CN107733129A (en) * | 2017-09-19 | 2018-02-23 | 天津市源泉机电设备制造有限公司 | Oil-filled submersible motor |
| CN107733129B (en) * | 2017-09-19 | 2024-12-03 | 天津市源泉机电设备制造有限公司 | Oil-filled submersible motor |
| CN107528438A (en) * | 2017-10-19 | 2017-12-29 | 江西南磁电气有限公司 | A kind of cooling totally enclosed type asynchronous machine certainly |
| CN107733109A (en) * | 2017-10-19 | 2018-02-23 | 江西南磁电气有限公司 | A kind of disc-type permanent magnet motor with cooling rotor structure |
| CN110173434B (en) * | 2018-02-20 | 2022-02-18 | 株式会社荏原制作所 | Motor pump |
| TWI777034B (en) * | 2018-02-20 | 2022-09-11 | 日商荏原製作所股份有限公司 | Motor pump |
| CN110173434A (en) * | 2018-02-20 | 2019-08-27 | 株式会社荏原制作所 | Motor-mount pump |
| CN108282056B (en) * | 2018-03-30 | 2024-03-01 | 北京理工大学 | A liquid-cooled drive motor for vehicles |
| CN109525056A (en) * | 2019-01-14 | 2019-03-26 | 苏州阿福机器人有限公司 | A kind of oil-cooled motor |
| CN110266127A (en) * | 2019-06-04 | 2019-09-20 | 华为技术有限公司 | Electric Motors, Motor Cooling Systems and Electric Vehicles |
| US11577600B2 (en) | 2019-06-04 | 2023-02-14 | Huawei Digital Power Technologies Co., Ltd. | Motor, motor cooling system, and electric vehicle |
| CN111169616A (en) * | 2020-02-11 | 2020-05-19 | 无锡斯波机械科技有限公司 | A dual cooling surf pedal electric jet pump powertrain |
| CN113572299A (en) * | 2020-04-28 | 2021-10-29 | 中车株洲电力机车研究所有限公司 | Oil-cooled permanent magnet motor and end cover thereof |
| CN111711287A (en) * | 2020-06-29 | 2020-09-25 | 苏州炽优装备科技有限公司 | Efficient heat dissipation method for motor and motor applied by efficient heat dissipation method |
| CN111711287B (en) * | 2020-06-29 | 2022-02-01 | 苏州恒科机电科技有限公司 | Efficient heat dissipation method for motor and motor applied by efficient heat dissipation method |
| CN112910181A (en) * | 2021-03-01 | 2021-06-04 | 江苏华频电子科技有限公司 | Brushless motor with high-efficient heat dissipation |
| CN112910181B (en) * | 2021-03-01 | 2022-02-22 | 江苏华频电子科技有限公司 | Brushless motor with high-efficient heat dissipation |
| CN113305621A (en) * | 2021-06-25 | 2021-08-27 | 意特利（滁州）智能数控科技有限公司 | Unclamping cutter mechanism and five-axis head electric spindle |
| CN114844299A (en) * | 2022-07-01 | 2022-08-02 | 苏州上舜精密工业科技有限公司 | Motor heat dissipation structure, motor with structure and heat dissipation method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110928 |
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| CX01 | Expiry of patent term |