CN204858766U - Stator core and motor - Google Patents

Stator core and motor Download PDF

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Publication number
CN204858766U
CN204858766U CN201520566607.6U CN201520566607U CN204858766U CN 204858766 U CN204858766 U CN 204858766U CN 201520566607 U CN201520566607 U CN 201520566607U CN 204858766 U CN204858766 U CN 204858766U
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China
Prior art keywords
stator core
motor
lug
groove
channel
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CN201520566607.6U
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Chinese (zh)
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李富强
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BYD Co Ltd
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BYD Co Ltd
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  • Iron Core Of Rotating Electric Machines (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

The utility model provides a stator core and motor, stator core include stator body, and stator body's outer wall protrusion has a plurality of to be used for the installation stator core's first lug, be provided with on stator body's between the first lug the outer wall and be used for carrying out the cold recess of oil for stator core, the recess is the square waveform. The utility model provides a stator core and motor has better radiating effect and simple structure, the cost is lower.

Description

A kind of stator core and motor
Technical field
The utility model relates to machine field, particularly relates to a kind of stator core and the motor with better heat dissipation effect.
Background technology
Along with the raising of people's living standard, increasing place needs to use motor.Motor has different types, but in various types of motor, its heat dissipation problem is the key factor of the performance affecting all motors always.In prior art, various radiator structure is set in motor, by water-cooled or oil cooling structure, it is dispelled the heat.But, because the environment for use of motor relates to electricity usually, in order to avoid the danger of the short circuit that water-band is come, motor adopts oil cooling mostly, in motor, namely arrange the mechanical structure of oil cooling, but it normally dispels the heat to casing, stator core is not dispelled the heat, and its radiating effect is not ideal enough, and structure is more complicated, and then affects the cost of manufacture of motor.
Summary of the invention
Technical problem to be solved in the utility model is and defect that structure more complicated not ideal enough for stator core radiating effect in prior art to provide one both to have good radiating effect, and the stator core that structure is simple, cost of manufacture is lower.
The utility model solves the technical scheme that its technical problem adopts and is to provide a kind of stator core, stator core comprises stator body, the outer wall of stator body is protruding with several for installing the first lug of described stator core, the outer wall of the stator body between described first lug is provided with the groove for carrying out oil cooling to stator core, described groove is square waveform.
In said stator iron core, stator body comprises several punching groups laminated successively, and each punching group comprises several and laminates successively and the identical stamping of shape.
In said stator iron core, each punching group is provided with the welding groove for itself and adjacent punching bond pads being fixed.
In order to better solve the problems of the technologies described above, the utility model additionally provides a kind of motor, it comprises casing and is arranged at the stator core in described casing, described stator core is the stator core according to any one of above-mentioned, described stator core and described casing interference fit, described casing is provided with the fuel feed hole for the fluid outside casing being provided to described groove.
Preferably, described fuel feed hole is communicated with to form path with groove with described groove.
Preferably, described casing is provided with the second lug mated with described first lug, the third channel that described casing is provided with the first passage be communicated with groove, the second channel be communicated with first passage near the second lug place and is communicated with second channel, described third channel is arranged in described second lug.
Preferably, described third channel is positioned at the end of described second lug.
Preferably, described first passage and described texturearunaperpendicular, described second channel is vertical with first passage, and described third channel is vertical with second channel.
Preferably, the bottom of the installation position of described casing is provided with the oil storage tank of arc.Described oil storage tank is provided with the oil-out for discharging fluid.
In the stator core that the utility model provides, stator core is provided with preferably for the oil circuit of oil cooling, it is arranged on the outer wall of the stator body between several first lugs by the groove of square waveform, it can make cooling fluid and stator core fully contact to make stator core have good radiating effect, and its structure is simple, manufacture craft simple, cost of manufacture is lower, and then make the motor including this stator core have good radiating effect, and then make that machine operation performance is more stable, the life-span is longer.
Accompanying drawing explanation
Fig. 1 is the structure chart of stator core in the embodiment that provides of the utility model;
Fig. 2 is the structure chart of stator core in the another embodiment that provides of the utility model;
Fig. 3 is the structure chart of motor in the embodiment that provides of the utility model;
Fig. 4 is the structural representation of motor in the another embodiment that provides of the utility model.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " length ", " width ", " thickness ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.
In description of the present utility model, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
See shown in Fig. 1 to Fig. 4, the stator core that the utility model provides is provided with the oil circuit of oil cooling, to effectively reduce the temperature of stator core.Concrete, the stator core that the utility model provides comprises: stator body, the outer wall of stator body is protruding with several for installing the first lug 21 of described stator core 20, the outer wall of the stator body between described first lug 21 is provided with the groove 11 for carrying out oil cooling to stator core 20, described groove 11 is in square waveform.Motor in actual use, its stator core 20 often can gather more heat transfer, so that affects performance and the life-span of motor.Groove 11 on stator core 20 outer wall of the present utility model is as the oil circuit of stator core 20 oil cooling, on the one hand, this groove 11 is arranged between some first lugs 21 of stator core 20, and its mounting process not affecting stator core 20 does not affect the steadiness after stator core 20 installation yet; On the other hand, groove 11 as cooling oil path is square waveform, the shape and structure of its rule is convenient to processing and fabricating stator core 20 relatively, those skilled in the art know, stator core 20 is owing to being iron core, the making of its structure and processing all more loaded down with trivial details, so the structure of stator core 20 that the utility model provides can greatly reduce stator core 20 and motor manufacture difficulty, it greatly can improve the make efficiency of stator core 20 and motor and can reduce the cost of stator core 20 and motor; And, the groove 11 of square waveform is in bending, its roundabout structure is convenient to fully contact with stator core 20 as the fluid of cooling fluid, with better, heat on stator core 20 is taken away, and then the effective heat dissipation problem solving stator core 20 and motor, relative improves motor performance parameter.
In the preferred embodiment of the stator core 20 provided at the utility model, described stator body comprises several punching groups laminated successively, each punching group comprises several and laminates successively and the identical stamping of shape, make the profile of the identical and then one group of punching group of the shape of each stamping in each punching group unified like this, and then this punching group and other punching group form the groove 11 of square waveform with different profiles.Preferably, stator body comprises six punching groups, better to form square waveform groove 11, and form square waveform groove 11 with minimum punching group, as in Fig. 2, it comprises punching group A, punching group B, punching group C, punching group D, punching group E, punching group F, and manufacture craft of stator core 20 is simplified for it and cost of manufacture reduces.
Preferably, each punching group is provided with the welding groove 19 for itself and adjacent punching bond pads being fixed.Under normal circumstances, stator core 20 is built up by punching, connection can be fixed in several ways between different punchings, in preferred embodiment of the present utility model, the edge of each punching group is provided with welding groove 19, makes to be fixed connection by the welding of its marginal portion between adjacent punching group.And be provided with the installing hole 211 for fixedly mounting stator core 20 in the first lug 21 on stator core 20, this installing hole 211 is generally columniform, better to install fixed stator iron core 20.
The utility model additionally provides a kind of motor, it comprises casing 10 and is arranged at the stator core 20 in described casing 10, stator core 20 in this motor is any one in said stator iron core 20, described stator core 20 and described casing 10 interference fit, described casing 10 is provided with the fuel feed hole (not shown) for the fluid outside casing 10 being provided to described groove 11.So, in the motor that the utility model provides, fluid (cooling oil that such as oil pump provides) outside motor is provided in the groove 11 of stator core 20 by the fuel feed hole on casing 10 by it, because stator core 20 and casing 10 are interference fit, so the groove 11 of the inwall of casing 10 and stator core 20 forms the oil duct of oil cooling, and then in motor stator core 20 on heat effectively can be distributed by the oil duct on it, and then solve the defect that in prior art, stator core 20 temperature is higher, therefore the motor that the utility model provides effectively can solve the stator core 20 of motor and the heat dissipation problem of motor, and its overall structure is simple, manufacture craft is simpler, cost of manufacture is lower.
Concrete, the fluid in the motor external world can be provided in the groove 11 on stator core 20 by the fuel feed hole of motor in several ways, preferably, described fuel feed hole is communicated with to form path with groove 11 with described groove 11, such as, the position that fuel feed hole is in casing 10 is identical with the position that groove 11 is in casing 10, then the end of fuel feed hole can be made to be located immediately in groove 11, and then the oil of fuel feed hole directly enters in groove 11 and dispels the heat.In a preferred embodiment, casing 10 is provided with the second lug 13 mated with described first lug 21, the third channel 16 that described casing 10 is provided with the first passage 14 be communicated with groove 11, the second channel 15 be communicated with first passage 14 near the second lug 13 place and is communicated with second channel 15, described third channel 16 is arranged in described second lug 13.Because groove 11 is the outer walls being positioned at stator core 20, and the outer wall of stator core 20 between the first lug 21, therefore by the first passage 14 be communicated with groove 11, the second channel 15 being arranged at the third channel 16 in the second lug 13 and being communicated with first passage 14 and third channel 16 simultaneously, complete oil circuit can be formed and avoid the first lug 21, its neither affect the first lug 21 install after steadiness, good oil cooling gallery and good radiating effect and structure is simple can be provided again.More preferably, described third channel 16 is positioned at the end of described second lug 13.In other words, after motor installs (i.e. the installation position of motor), the second lug 13 is positioned at the lateral wall of motor, then third channel 16 is positioned at top and/or the bottom of the second lug 13, and third channel 16 is in the form of slot at the second lug 13 place.More preferably, described first passage 14 is vertical with described groove 11, and described second channel 15 is vertical with first passage 14, and described third channel 16 is vertical with second channel 15.As shown in the figure, the third channel 16 formed can be made like this to be positioned at the end of the second lug 13, with guarantee the oil circuit that groove 11 extends unobstructed while dodge the second lug 13 preferably, and the connectedness of whole oil circuit is better, structure is simple, it is also simple and easy to make.
In the preferred embodiment of the motor provided at the utility model, the bottom of the installation position of casing 10 is provided with the oil storage tank 17 of arc, makes fluid after stator core 20 and casing 10 upper reaches passband walk heat, be pooled to the bottom of casing 10.More preferably, described oil storage tank 17 is provided with the oil-out (not shown) for discharging fluid, to regularly replace the fluid for cooling.
As fully visible, the stator core that the utility model provides and motor, extraneous fluid is made to be entered motor by oil pump from the fuel feed hole of casing, the inwall of casing and the groove of stator core form the oil circuit for cooling simultaneously, fluid only has the oil circuit at above-mentioned groove place to circulate after fuel feed hole enters motor, therefore fluid along groove place oil circuit circulation to take away the heat on stator core and casing, when cooling oil is circulated to the first lug place on the groove of square waveform, it avoids the first lug, namely direct one end from groove flows through first passage, second channel, third channel enters the second lug, then than the first lug avoided on stator core, then, fluid enters next second channel from the second lug, first passage, the other end of groove, namely fluid is again got back to groove and is circulated, principle circulates until the oil storage tank of motor bottom in stator core and casing according to this, such fluid fully contacts with stator core and casing, and then heat more on motor can be taken away, and then substantially increase heat dispersion and the life-span of motor.What deserves to be explained is, the structure that the utility model provides is mainly used in the motor of oil cooling.
In sum, the stator core that the utility model provides is provided with preferably for the oil circuit of oil cooling, it can make cooling fluid and stator core fully contact to make stator core have good radiating effect, and its structure is simple, manufacture craft simple, cost of manufacture is lower.Simultaneously, the motor that the utility model provides has preferably for the oil circuit of oil cooling, it can make cooling fluid and motor fully contact to make motor have good radiating effect, and then make that machine operation performance is more stable, the life-span is longer, and its structure is simple, manufacture craft simple, cost of manufacture is lower.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.

Claims (10)

1. a stator core, it is characterized in that, comprise stator body, the outer wall of stator body is protruding with several for installing the first lug of described stator core, the outer wall of the stator body between described first lug is provided with the groove for carrying out oil cooling to stator core, described groove is square waveform.
2. stator core as claimed in claim 1, it is characterized in that, described stator body comprises several punching groups laminated successively, and each punching group comprises several and laminates successively and the identical stamping of shape.
3. stator core as claimed in claim 2, is characterized in that, each punching group is provided with the welding groove for itself and adjacent punching bond pads being fixed.
4. a motor, comprise casing and be arranged at the stator core in described casing, it is characterized in that, the stator core of described stator core according to any one of the claims 1 to 3, described stator core and described casing interference fit, described casing is provided with the fuel feed hole for the fluid outside casing being provided to described groove.
5. motor as claimed in claim 4, it is characterized in that, described fuel feed hole is communicated with to form path with groove with described groove.
6. the motor as described in claim 4 or 5, it is characterized in that, described casing is provided with the second lug mated with described first lug, the third channel that described casing is provided with the first passage be communicated with groove, the second channel be communicated with first passage near the second lug place and is communicated with second channel, described third channel is arranged in described second lug.
7. motor as claimed in claim 6, it is characterized in that, described third channel is positioned at the end of described second lug.
8. motor as claimed in claim 7, it is characterized in that, described first passage and described texturearunaperpendicular, described second channel is vertical with first passage, and described third channel is vertical with second channel.
9. motor as claimed in claim 4, it is characterized in that, the bottom of the installation position of described casing is provided with the oil storage tank of arc.
10. motor as claimed in claim 9, is characterized in that, described oil storage tank being provided with the oil-out for discharging fluid.
CN201520566607.6U 2015-07-31 2015-07-31 Stator core and motor Active CN204858766U (en)

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Application Number Priority Date Filing Date Title
CN201520566607.6U CN204858766U (en) 2015-07-31 2015-07-31 Stator core and motor

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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111224499A (en) * 2018-11-23 2020-06-02 广东德昌电机有限公司 Oil pump and motor thereof
CN112104172A (en) * 2020-08-29 2020-12-18 佛山市顺德区金泰德胜电机有限公司 Method for manufacturing stator of closed oil-cooled motor
CN112104171A (en) * 2020-08-29 2020-12-18 佛山市顺德区金泰德胜电机有限公司 Method for manufacturing stator of oil-cooled motor
WO2020253321A1 (en) * 2019-06-18 2020-12-24 华为技术有限公司 Stator core, housing, motor cooling system for electric vehicle, and electric vehicle
EP3913769A4 (en) * 2019-06-04 2022-04-20 Huawei Digital Power Technologies Co., Ltd. Electric motor, electric motor cooling system and electric vehicle
WO2023143659A1 (en) * 2022-01-27 2023-08-03 Schaeffler Technologies AG & Co. KG Stator

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111224499A (en) * 2018-11-23 2020-06-02 广东德昌电机有限公司 Oil pump and motor thereof
EP3913769A4 (en) * 2019-06-04 2022-04-20 Huawei Digital Power Technologies Co., Ltd. Electric motor, electric motor cooling system and electric vehicle
JP2022527245A (en) * 2019-06-04 2022-06-01 華為数字能源技術有限公司 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
JP7231758B2 (en) 2019-06-04 2023-03-01 華為数字能源技術有限公司 Motors, motor cooling systems, and electric vehicles
WO2020253321A1 (en) * 2019-06-18 2020-12-24 华为技术有限公司 Stator core, housing, motor cooling system for electric vehicle, and electric vehicle
US11581785B2 (en) 2019-06-18 2023-02-14 Huawei Digital Power Technologies Co., Ltd. Stator core, housing, motor cooling system of electric vehicle, and electric vehicle
CN112104172A (en) * 2020-08-29 2020-12-18 佛山市顺德区金泰德胜电机有限公司 Method for manufacturing stator of closed oil-cooled motor
CN112104171A (en) * 2020-08-29 2020-12-18 佛山市顺德区金泰德胜电机有限公司 Method for manufacturing stator of oil-cooled motor
CN112104171B (en) * 2020-08-29 2022-01-14 佛山市顺德区金泰德胜电机有限公司 Method for manufacturing stator of oil-cooled motor
WO2023143659A1 (en) * 2022-01-27 2023-08-03 Schaeffler Technologies AG & Co. KG Stator

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