CN102931739A - Motor stator cooling structure - Google Patents
Motor stator cooling structure Download PDFInfo
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- CN102931739A CN102931739A CN2012104840589A CN201210484058A CN102931739A CN 102931739 A CN102931739 A CN 102931739A CN 2012104840589 A CN2012104840589 A CN 2012104840589A CN 201210484058 A CN201210484058 A CN 201210484058A CN 102931739 A CN102931739 A CN 102931739A
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- stator
- cooling water
- cooling
- cooling structure
- stator core
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Abstract
The invention relates to a motor stator cooling structure. The cooling structure comprises a stator core and a cooling water channel, wherein the stator core is a dual-stator iron core; the dual-stator iron core comprises an inner stator and an outer stator which are integrated; the cooling water channel is arranged between the inner stator and the outer stator; preferably, the cooling water channel is an axial channel arranged in the axial direction of the stator iron core and comprises a plurality of cooling tubes and a plurality of bent pipes, and the cooling tubes is arranged between the inner stator and the outer stator in the axial direction of the stator iron core in a penetrating manner; the end parts of two cooling tubes positioned at the same end of the stator iron core are connected by one bent pipe; and a plurality of magnetism isolating holes or a plurality of fixing holes are formed in the stator iron core between the inner stator and the outer stator in the axial direction of the stator iron core. The motor stator cooling structure provided by the invention is unique in design, simple in structure, simple, convenient and quick in manufacture, low in cost, uniform and reliable in cooling, and suitable for large-scale promotion and application.
Description
Technical field
The present invention relates to the cooling structure technical field, particularly the motor cooling technical field specifically refers to a kind of motor stator cooling structure.
Background technology
At present, for the living environment of to protect mankind and save non-renewable resources must change energy consumption structure, just may avoid energy crisis, so new-energy automobile is just aobvious very important under current situation.
Electric motor of automobile is as the heart of new-energy automobile, iron loss, copper loss owing to stator module during its work produce a large amount of heats, if the words that obstructed overcooling structure goes out the loss hot type, can cause motor stator component, rotor assembly excess Temperature, thereby rotor magnetic steel demagnetization, stator line bag burn, and affect the normal operation of motor.Current common way is to form cooling water channel at motor case, and the heat that motor produces is taken out of water channel or machining, or mould molding, high expensive under many kinds, small lot batch manufacture situation after by stator core, casing by cooling fluid.
Therefore, need to provide a kind of motor cooling, it produces easy to be quick, and cost is low, and cooling is evenly reliable.
Summary of the invention
The objective of the invention is to have overcome above-mentioned shortcoming of the prior art, a kind of motor stator cooling structure is provided, the design of this motor stator cooling structure is ingenious, simple for structure, produces that easy cost is low fast, and cooling evenly reliably is not suitable for large-scale promotion application.
To achieve these goals, motor stator cooling structure of the present invention, comprise stator core, described stator core is two stator cores, described pair of stator core comprises internal stator and external stator, is characterized in, described internal stator and described external stator are integrally formed, described motor stator cooling structure also comprises cooling water channel, and described cooling water channel is arranged between described internal stator and the described external stator.
Preferably, described cooling water channel is the axial water channel along the axial setting of described stator core.
Preferably, described cooling water channel comprises some cooling water pipes and some bend pipes, described cooling water pipe axially is located between described internal stator and the described external stator along described stator core, connects by described bend pipe between the end of two described cooling water pipes of described stator core same side.
More preferably, described cooling water pipe is circle distribution.
More preferably, described cooling water pipe is metal tube.
More preferably, described bend pipe is metal tube or non-metallic pipe.
More preferably, on the described stator core between described internal stator and described external stator along described stator core axially be provided with some perforation, described cooling water pipe is located in the described perforation.
Further, described motor stator cooling structure also comprises the heat conduction filler, and described heat conduction filler is filled between described cooling water pipe and the described perforation.
Preferably, some every the magnetic hole along axially being provided with of described stator core between described internal stator and described external stator on the described stator core.
Preferably, between described internal stator and described external stator, axially be provided with some fixing holes along described stator core on the described stator core.
Beneficial effect of the present invention specifically is:
1, motor stator cooling structure of the present invention comprises stator core, described stator core is two stator cores, and described pair of stator core comprises internal stator and external stator, and described internal stator and described external stator are integrally formed, described motor stator cooling structure also comprises cooling water channel, described cooling water channel is arranged between described internal stator and the described external stator, designs ingenious, simple for structure, produce easy to be quick, cost is low, and cooling is evenly reliable, is suitable for large-scale promotion application.
2, the described cooling water channel of motor stator cooling structure of the present invention comprises some cooling water pipes and some bend pipes, described cooling water pipe axially is located between described internal stator and the described external stator along described stator core, between the end of two described cooling water pipes of described stator core same side, connect by described bend pipe, design ingenious, simple for structure, produce easy fast, cost is low, and cooling is evenly reliable, is suitable for large-scale promotion application.
Description of drawings
Fig. 1 is the schematic perspective view of a specific embodiment of the present invention.
Fig. 2 is the schematic perspective view that specific embodiment shown in Figure 1 is not installed cooling water pipe and bend pipe.
Embodiment
In order more clearly to understand technology contents of the present invention, describe in detail especially exemplified by following examples.
See also Fig. 1～shown in Figure 2, motor stator cooling structure of the present invention comprises stator core 1 and cooling water channel 2, described stator core 1 is two stator cores, described pair of stator core 1 comprises internal stator 11 and external stator 12, described internal stator 11 and described external stator 12 are integrally formed, and described cooling water channel 2 is arranged between described internal stator 11 and the described external stator 12.
Described cooling water channel 2 can be any suitable cooling water channel, sees also Fig. 1～shown in Figure 2, and in specific embodiments of the invention, described cooling water channel 2 is the axial water channel along the axial setting of described stator core 1.
Described cooling water channel 2 can adopt any suitable structure, see also Fig. 1～shown in Figure 2, in specific embodiments of the invention, described cooling water channel 2 comprises some cooling water pipes 21 and some bend pipes 22, described cooling water pipe 21 is along between the described internal stator 11 of axially being located in of described stator core 1 and the described external stator 12, connects by described bend pipe 22 between the end of two described cooling water pipes 21 of described stator core 1 same side.
Described cooling water pipe 21 can be arranged into any suitable shape, sees also shown in Figure 2ly, and in specific embodiments of the invention, described cooling water pipe 21 is circle distribution.
Described cooling water pipe 21 can be any suitable cooling water pipe, and in specific embodiments of the invention, described cooling water pipe 21 is metal tubes.
Described bend pipe 22 can be any suitable bend pipe, and more preferably, described bend pipe 22 is metal tube or non-metallic pipe.In specific embodiments of the invention, described bend pipe 22 is metal tube.
Described cooling water pipe 21 can adopt any suitable structure between the described internal stator 11 of axially being located in of described stator core 1 and described external stator 12, see also Fig. 1～shown in Figure 2, in specific embodiments of the invention, on the described stator core 1 between described internal stator 11 and described external stator 12 along the some perforation 13 of axially being provided with of described stator core 1, described cooling water pipe 21 is located in the described perforation 13.
In order to improve cooling effectiveness, in specific embodiments of the invention, described motor stator cooling structure also comprises heat conduction filler (not shown), and described heat conduction filler is filled between described cooling water pipe 21 and the described perforation 13.
In order to reduce the magnetic circuit coupling between internal stator 11 and the external stator 12, see also Fig. 1～shown in Figure 2, in specific embodiments of the invention, some every magnetic hole 14 along axially being provided with of described stator core 1 between described internal stator 11 and described external stator 12 on the described stator core 1.
Describedly can be positioned at any suitable position every magnetic hole 14, see also Fig. 1～shown in Figure 2, in specific embodiments of the invention, described every magnetic hole 14 between two described perforation 13.
Be fixed to other mechanical structure for the ease of stator core 1, see also Fig. 1～shown in Figure 2, in specific embodiments of the invention, on the described stator core 1 between described internal stator 11 and described external stator 12 along the some fixing holes 15 of axially being provided with of described stator core 1.
Described fixing hole 15 can be positioned at any suitable position, sees also Fig. 1～shown in Figure 2, and in specific embodiments of the invention, described fixing hole 15 is positioned at different circumference from described perforation 13.
Manufacturing of the present invention is very simple, for example can be at first between described internal stator 11 and described external stator 12 stamping-out go out perforation 13, perforation adds between 13 an amount of every magnetic hole 14, add that an amount of fixing hole 15(also can not arrange fixing hole 15 specially outside the perforation 13, can be used as fixing hole every magnetic hole 14), fixing hole 15 and perforation 13 that stator core 1 and other structural member are required are not radially belonging to same circle diameter.Cooling water pipe 21 is inserted perforation 13, between fill the heat conduction filler, the end connects with bend pipe 22, if bend pipe 22 is metal tube, can be welded to connect, if bend pipe 22 is nonmetal, available securing member is tightened connection, should be noted, an end of two cooling water pipes 21 of head and the tail is bridge piece not, respectively as water inlet 3 and delivery port 4.At the axial cooling water channel 2 of stator core 1 inner formation, the heat that motor produces is taken away thus.
In fact, part bend pipe 22 can with cooling water pipe 21 one, namely long cooling water pipe 21 middle parts can be bent into U-shaped with bending machine, stator core 1 one sides of packing into connect with bend pipe 22 between a plurality of U-shaped spares of stator core 1 opposite side.More particularly, all bend pipe 22 and all cooling water pipe 21 one namely adopt a longer cooling water pipe 21 circuitous wearing to bore a hole 13, need crooked place to adopt the bending machine bending.
Therefore, the invention provides a kind of directly cooling water channel 2 in stator core 1, adopt cooling water pipe 21 and bend pipe 22 moulding, remove the machining water channel from, be applicable to the production of many kinds, small lot, its cost is lower, and even, reliable to the cooling of motor.Compare with original motor housing cooling structure, adopt the present invention to have the following advantages:
1, the whole stamping-out of two stator cores has saved a wherein secondary mould of internal stator 11 and external stator 12 difference stamping-outs.
2, metal tube market is raised variety variously, cheap, and the bending of water pipe is directly made by bending machine, makes very conveniently, and its equipment is cheap, and cost of manufacture is cheap.
3, whole channel structure need not machine work, has saved cost of labor, has improved production efficiency.
To sum up, motor stator cooling structure of the present invention design is ingenious, simple for structure, produces that easy cost is low fast, and cooling evenly reliably is not suitable for large-scale promotion application.
In this specification, the present invention is described with reference to its specific embodiment.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (10)
1. motor stator cooling structure, comprise stator core, described stator core is two stator cores, described pair of stator core comprises internal stator and external stator, it is characterized in that, described internal stator and described external stator are integrally formed, and described motor stator cooling structure also comprises cooling water channel, and described cooling water channel is arranged between described internal stator and the described external stator.
2. motor stator cooling structure according to claim 1 is characterized in that, described cooling water channel is the axial water channel along the axial setting of described stator core.
3. motor stator cooling structure according to claim 1, it is characterized in that, described cooling water channel comprises some cooling water pipes and some bend pipes, described cooling water pipe axially is located between described internal stator and the described external stator along described stator core, connects by described bend pipe between the end of two described cooling water pipes of described stator core same side.
4. motor stator cooling structure according to claim 3 is characterized in that, described cooling water pipe is circle distribution.
5. motor stator cooling structure according to claim 3 is characterized in that, described cooling water pipe is metal tube.
6. motor stator cooling structure according to claim 3 is characterized in that, described bend pipe is metal tube or non-metallic pipe.
7. motor stator cooling structure according to claim 3 is characterized in that, on the described stator core between described internal stator and described external stator along described stator core axially be provided with some perforation, described cooling water pipe is located in the described perforation.
8. motor stator cooling structure according to claim 7 is characterized in that, described motor stator cooling structure also comprises the heat conduction filler, and described heat conduction filler is filled between described cooling water pipe and the described perforation.
9. motor stator cooling structure according to claim 1 is characterized in that, and is some every the magnetic hole along axially being provided with of described stator core between described internal stator and described external stator on the described stator core.
10. motor stator cooling structure according to claim 1 is characterized in that, axially is provided with some fixing holes along described stator core on the described stator core between described internal stator and described external stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104840589A CN102931739A (en) | 2012-11-23 | 2012-11-23 | Motor stator cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104840589A CN102931739A (en) | 2012-11-23 | 2012-11-23 | Motor stator cooling structure |
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| CN102931739A true CN102931739A (en) | 2013-02-13 |
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| CN2012104840589A Pending CN102931739A (en) | 2012-11-23 | 2012-11-23 | Motor stator cooling structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105099109A (en) * | 2015-08-03 | 2015-11-25 | 聊城汇创电机有限公司 | Water-cooled double-stator switched reluctance motor and control system thereof |
| CN105634163A (en) * | 2016-04-07 | 2016-06-01 | 福建亚南电机有限公司 | Permanent magnetic drive motor with built-in water channel |
| CN106451844A (en) * | 2016-10-28 | 2017-02-22 | 湘潭电机股份有限公司 | Motor and stator cooling structure thereof |
| CN108028561A (en) * | 2015-09-08 | 2018-05-11 | 西门子公司 | Motor with connector in a cooling system |
| CN108599411A (en) * | 2018-07-19 | 2018-09-28 | 扬州大学 | A kind of stator water-cooling structure of wheel hub motor |
| CN112600320A (en) * | 2020-11-27 | 2021-04-02 | 超音速智能技术(杭州)有限公司 | Stator punching sheet of small motor |
| US11601023B2 (en) * | 2019-12-19 | 2023-03-07 | Toyota Jidosha Kabushiki Kaisha | Rotary electric machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201750239U (en) * | 2010-06-09 | 2011-02-16 | 无锡东元电机有限公司 | Water-jacket type water-cooled motor |
| CN102222992A (en) * | 2010-04-13 | 2011-10-19 | 西门子公司 | Stator-arrangement |
| US20120074798A1 (en) * | 2010-09-23 | 2012-03-29 | Northern Power Systems, Inc. | Electromagnetic Rotary Machines Having Modular Active-Coil Portions and Modules For Such Machines |
| CN102780340A (en) * | 2011-10-05 | 2012-11-14 | Impsa有限公司 | Synchronous wind turbine generator |
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2012
- 2012-11-23 CN CN2012104840589A patent/CN102931739A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102222992A (en) * | 2010-04-13 | 2011-10-19 | 西门子公司 | Stator-arrangement |
| CN201750239U (en) * | 2010-06-09 | 2011-02-16 | 无锡东元电机有限公司 | Water-jacket type water-cooled motor |
| US20120074798A1 (en) * | 2010-09-23 | 2012-03-29 | Northern Power Systems, Inc. | Electromagnetic Rotary Machines Having Modular Active-Coil Portions and Modules For Such Machines |
| CN102780340A (en) * | 2011-10-05 | 2012-11-14 | Impsa有限公司 | Synchronous wind turbine generator |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105099109A (en) * | 2015-08-03 | 2015-11-25 | 聊城汇创电机有限公司 | Water-cooled double-stator switched reluctance motor and control system thereof |
| CN108028561A (en) * | 2015-09-08 | 2018-05-11 | 西门子公司 | Motor with connector in a cooling system |
| US10749389B2 (en) | 2015-09-08 | 2020-08-18 | Siemens Aktiengesellschaft | Method and electrical machine with couplings in the cooling system |
| CN108028561B (en) * | 2015-09-08 | 2020-12-04 | 西门子公司 | Electric machine with coupling in cooling system |
| CN105634163A (en) * | 2016-04-07 | 2016-06-01 | 福建亚南电机有限公司 | Permanent magnetic drive motor with built-in water channel |
| CN106451844A (en) * | 2016-10-28 | 2017-02-22 | 湘潭电机股份有限公司 | Motor and stator cooling structure thereof |
| CN106451844B (en) * | 2016-10-28 | 2019-04-30 | 湘潭电机股份有限公司 | A kind of motor stator cooling structure and motor |
| CN108599411A (en) * | 2018-07-19 | 2018-09-28 | 扬州大学 | A kind of stator water-cooling structure of wheel hub motor |
| US11601023B2 (en) * | 2019-12-19 | 2023-03-07 | Toyota Jidosha Kabushiki Kaisha | Rotary electric machine |
| CN112600320A (en) * | 2020-11-27 | 2021-04-02 | 超音速智能技术(杭州)有限公司 | Stator punching sheet of small motor |
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Application publication date: 20130213 |