CN104979936A - Motor with cooling structure - Google Patents
Motor with cooling structure Download PDFInfo
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- CN104979936A CN104979936A CN201510487181.XA CN201510487181A CN104979936A CN 104979936 A CN104979936 A CN 104979936A CN 201510487181 A CN201510487181 A CN 201510487181A CN 104979936 A CN104979936 A CN 104979936A
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Abstract
The invention provides a motor with a cooling structure, belonging to the field of transmission devices. The motor comprises a motor body, wherein the motor body comprises a shell, a stator and a rotor, the shell and the stator are shaped like cylinders, the stator is arranged on the inner wall of the shell, the stator and the shell are coaxially arranged, and the rotor is arranged inside the stator; the outer side wall of the shell is provided with a cooling pipe which spirally encircles the shell, the two ends of the cooling pipe are respectively provided with an input hole and an output hole, and the cooling pipe and the shell are integrally molded. According to the motor with the structure, the motor can be cooled effectively and permanently, meanwhile, the possibility of damage of internal parts can be effectively reduced, and the maintenance and replacement cost can be lowered.
Description
Technical field
The present invention relates to transmission device field, in particular to a kind of motor with cooling structure.
Background technology
Motor is also motor, and operation principle is drive starter armature to rotate by electromagnetic induction, and on rotor, the structure such as flywheel driven rotates.
Motor can generate heat in operation, needs to use cooling body and cools it.In prior art, cooling structure is of a great variety, be exemplified below: a kind of motor outside is convexly equipped with the fin for cooling, and by being attached to the fan of wherein one end at motor drive shaft two ends, or independent of a forced draft fan set beyond this motor, this air-supply carries out the cooling of motor to respectively this fin of this motor by this, reaches the object cooling this motor; But the heat abstractor of this motor of tradition, still has many shortcomings to have much room for improvement; Wherein bottom the recess of each this fin of radial direction, easily deposit dust or dust at this motor each other, not only not easy to clean and overheated time reduce the efficiency of running, even cause the problem that inner body burns; In addition, tradition uses the radiating mode of each this heat radiation of this fan collocation, and its cooling capacity is limited is unfavorable for the running that works long hours, and perplexs related personnel for a long time.
Therefore visible, cooling body of the prior art is practical not, can not meet the demand of motor cooling.
Summary of the invention
The invention provides a kind of motor with cooling structure, be intended to improve the problems referred to above.
The present invention is achieved in that
With a motor for cooling structure, comprise motor body, described motor body comprises housing, stator and rotor, and described housing and stator are cylindrical shape, and the inwall of housing is located at by stator, and stator and housing are coaxially arranged, and the inside of stator is located at by rotor; The lateral wall of housing is provided with the cooling water pipe of this housing of spiral surrounding, and the two ends of cooling water pipe are respectively equipped with input port and delivery outlet, described cooling water pipe and housing one-body molded.
This cooling structure and the type of cooling are different from traditional cooling structure.Cooling media is at cooling Bottomhole pressure, and because cooling media is at any time in renewal, therefore its temperature remains lower temperature, and can play the effect of cooling constantly to motor body, long-play still can maintain high efficiency cooling effect; Cooling water pipe is positioned at the outside of housing simultaneously, does not stretch into the inside of housing, effectively can reduce the damage of motor body inner components, reduces the cost of maintain and replace.
Further, input port or the delivery outlet of described cooling water pipe are connected with pusher, and this pusher flows for driving the cooling media of cooling water pipe inside.Pusher can be connected to input port or the delivery outlet of cooling water pipe, is preferably connected to equipped at outlet port.
Further, the rear and front end of described housing is respectively equipped with protecgulum and bonnet, and described rotor is located in axle, and the two ends of this axle are rotationally connected with described protecgulum and bonnet respectively.During work, make rotor turns by electromagnetic induction principle, drive central axis, thus complete acting.
Further, described protecgulum and bonnet are respectively equipped with front-end bearing pedestal and rear bearing block, and the two ends of described axle are arranged with bearing respectively, and two bearings are located in described front-end bearing pedestal and rear bearing block respectively.Bearing enables axle rotate more reposefully.
Further, the link of described axle and bonnet extends described bonnet and forms elongated end, and the outside of bonnet is provided with dust cap.Dust cap can prevent dust from entering the inside of motor body, makes its inner structural members keep accuracy.
Further, described protecgulum is connected with the pusher for driving the cooling media of cooling water pipe inside to flow away from one end of housing, this pusher is connected with the delivery outlet of cooling water pipe by pipeline, and this pusher is connected with axle, can drive pusher work when central axis.
This design make use of the characteristic of motor body, makes the power of pusher from motor body: just can drive pusher work when motor operations, drives the cooling media flowing in cooling water pipe, plays efficient cooling effect; When motor quits work, pusher just quits work, and cooling media also no longer flows, and plays the effect reducing energy consumption.
Further, the outside of described housing is also connected with control box.Control box inside connects wire, and wire connects rotor and stator respectively.
Further, described cooling water pipe comprises multi-turn and is in charge of, every two circles are adjacent be in charge of between all there is gap.Cooling water pipe is one whole continuous print pipeline, and centre does not exist breakpoint or tie point.There is gap between being in charge of, the impurity such as the dust that cooling water pipe is piled up are removed more easily, facilitates the maintenance of motor, cooling structure is run better.
Further, the lateral wall of described housing is also provided with multiple bracing frame, and the bottom surface of all bracing frames is positioned at same plane.Bracing frame is for supporting motor body.Bracing frame preferably adopts column structure.
Further, described housing and cooling water pipe all adopt corrosion resistant metal to make.
The invention has the beneficial effects as follows: the motor with cooling structure that the present invention is obtained by above-mentioned design, can motor be cooled high-efficient and lasting, effectively reduce the damage of inner components simultaneously, reduce the cost of maintain and replace.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of embodiment of the present invention, be briefly described to the accompanying drawing used required in execution mode below, be to be understood that, the following drawings illustrate only some embodiment of the present invention, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the explosive view (not shown pusher) of the motor with cooling structure that embodiment of the present invention provides;
Fig. 2 is the axonometric drawing (not shown pusher) of the motor with cooling structure that embodiment of the present invention provides;
Fig. 3 is the right side view of Fig. 2;
Fig. 4 is the front view of Fig. 2;
Fig. 5 is the axonometric drawing after protecgulum removed by the motor with cooling structure that provides of embodiment of the present invention;
Fig. 6 is the right side view of Fig. 5;
Fig. 7 is the axonometric drawing of the motor with cooling structure that embodiment of the present invention provides;
Fig. 8 is the cutaway view of the motor middle shell with cooling structure that embodiment of the present invention provides.
Figure acceptance of the bid note is respectively:
Housing 101; Stator 102; Rotor 103; Cooling water pipe 104; Input port 105; Delivery outlet 106; Pusher 107; Protecgulum 108; Bonnet 109; Axle 110; Bearing 111; Dust cap 112; Control box 113; Bracing frame 114.
Embodiment
For making the object of embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in embodiment of the present invention, technical scheme in embodiment of the present invention is clearly and completely described, obviously, described execution mode is the present invention's part execution mode, instead of whole execution modes.Based on the execution mode in the present invention, those of ordinary skill in the art, not making the every other execution mode obtained under creative work prerequisite, belong to the scope of protection of the invention.Therefore, below to the detailed description of the embodiments of the present invention provided in the accompanying drawings and the claimed scope of the present invention of not intended to be limiting, but selected execution mode of the present invention is only represented.Based on the execution mode in the present invention, those of ordinary skill in the art, not making the every other execution mode obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the equipment of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
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 describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as 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, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, 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.
Refer to Fig. 1-Fig. 8
The motor with cooling structure that present embodiment provides, comprise motor body, described motor body comprises housing 101, stator 102 and rotor 103, described housing 101 and stator 102 are cylindrical shape, the inwall of housing 101 is located at by stator 102, and stator 102 and housing 101 are coaxially arranged, the inside of stator 102 is located at by rotor 103; The lateral wall of housing 101 is provided with the cooling water pipe 104 of this housing 101 of spiral surrounding, and the two ends of cooling water pipe 104 are respectively equipped with input port 105 and delivery outlet 106, and described cooling water pipe 104 is one-body molded with housing 101.
This motor with cooling structure, can be applied to multiple occasion.The structure of motor is existing, and substantially comprise the structures such as stator 102, rotor 103, housing 101, stator 102 is arranged on housing 101, and during work, rotor 103 relative stator 102 is rotated.
Cooling water pipe 104 spiral surrounding, in the outside of housing 101, during use, passes into cooling media by its input port 105 to cooling water pipe 104 inside, and cooling media can be water, wet goods liquid.Cooling media flows in spiral helicine cooling water pipe 104, can be reduced the temperature of housing 101 by heat exchange, and then reduces the temperature in other structures and space in stator 102, rotor 103 and motor.
This cooling structure and the type of cooling are different from traditional cooling structure.Cooling media flows in cooling water pipe 104, and because cooling media continues flowing, therefore its temperature remains lower temperature, and can play the effect of cooling constantly to motor body, long-play still can maintain high efficiency cooling effect; Cooling water pipe 104 is positioned at the outside of housing 101 simultaneously, does not stretch into the inside of housing 101, effectively can reduce the damage of motor body inner components, reduces the cost of maintain and replace.
In addition, cooling water pipe 104 is one-body molded with housing 101, and the two belongs to an entirety, has better heat exchange effect, further increases heat dispersion, effectively improve economic benefit.
Also be connected with pusher 107 in the input port 105 of cooling water pipe 104 or delivery outlet 106, this pusher 107 flows for driving the cooling media of cooling water pipe 104 inside.Seemingly, therefore pusher 107 herein can adopt water pump to the function class of pusher 107 and water pump.Flowed in cooling water pipe 104 by the drive cooling media of pusher 107, make it play cooling effect.
Pusher 107 can be connected to input port 105 or the delivery outlet 106 of cooling water pipe 104, is preferably connected to delivery outlet 106 place.
The rear and front end of housing 101 is respectively equipped with protecgulum 108 and bonnet 109, and described rotor 103 is located in axle 110, and the two ends of this axle 110 are rotationally connected with described protecgulum 108 and bonnet 109 respectively.During work, by electromagnetic induction principle, rotor 103 is rotated, drive axle 110 to rotate, thus complete acting.
Particularly, protecgulum 108 and bonnet 109 are respectively equipped with fore bearing 111 and rear bearing 111, and the two ends of described axle 110 are arranged with bearing 111 respectively, and two bearings 111 are located in described fore bearing 111 and rear bearing 111 respectively.Bearing 111 makes axle 110 rotate more reposefully.
Axle 110 is extended described bonnet 109 with the link of bonnet 109 and is formed elongated end, and the outside of bonnet 109 is provided with dust cap 112.Dust cap 112 can prevent dust from entering the inside of motor body, makes its inner structural members keep accuracy.
On the basis containing said structure, pusher 107 is arranged on the one end away from housing 101 on protecgulum 108, and pusher 107 is connected with the delivery outlet 106 of cooling water pipe 104 by pipeline.The pusher 107 be arranged on herein makes the more compact structure of motor body.
Meanwhile, axle 110 is extended protecgulum 108 and is connected with pusher 107, and pusher 107 can be driven when axle 110 is rotated to work, and then drives the cooling media flowing of cooling water pipe 104 inside.This design make use of the characteristic of motor body, makes the power of pusher 107 from motor body: pusher 107 just can be driven to work when motor operations, drives the cooling media flowing in cooling water pipe 104, plays efficient cooling effect; When motor quits work, pusher 107 just quits work, and cooling media also no longer flows, and plays the effect reducing energy consumption.
Such design makes pusher 107 not need to arrange driver part and control program in addition, makes whole motor configuration simply compact, and operating efficiency is higher simultaneously, and it is more reasonable to design.
Particularly, the outside of housing 101 is also connected with control box 113.Control box 113 inside connects wire, and wire connects rotor 103 and stator 102 respectively.
As shown in Figure 8, cooling water pipe 104 comprises multi-turn and is in charge of, every two circles are adjacent be in charge of between all there is gap.Multi-turn is herein in charge of a just noun, and convenient description, in fact cooling water pipe 104 is one whole continuous print pipeline, and centre does not exist breakpoint or tie point.
There is gap between being in charge of, the impurity such as the dust that cooling water pipe 104 is piled up are removed more easily, facilitates the maintenance of motor, cooling structure is run better.
Preferably, the lateral wall of housing 101 is also provided with multiple bracing frame 114, and the bottom surface of all bracing frames 114 is positioned at same plane.Bracing frame 114 is for supporting motor body.Bracing frame 114 preferably adopts column structure.
Housing 101 and cooling water pipe 104 all adopt corrosion resistant metal to make.Housing 101 and cooling water pipe 104 is made to have decay resistance.Housing 101 preferably adopts aluminium alloy to make, and cooling water pipe 104 preferably adopts stainless steel to make.
For clearly demonstrating the present invention, in present embodiment, list some specific embodiments:
Embodiment 1
A kind of motor with cooling structure, comprise motor body, described motor body comprises housing 101, stator 102 and rotor 103, described housing 101 and stator 102 are cylindrical shape, the inwall of housing 101 is located at by stator 102, and stator 102 and housing 101 are coaxially arranged, the inside of stator 102 is located at by rotor 103; The lateral wall of housing 101 is provided with the cooling water pipe 104 of this housing 101 of spiral surrounding, and the two ends of cooling water pipe 104 are respectively equipped with input port 105 and delivery outlet 106, and described cooling water pipe 104 is one-body molded with housing 101.
Embodiment 2
A kind of motor with cooling structure, comprise motor body, described motor body comprises housing 101, stator 102 and rotor 103, described housing 101 and stator 102 are cylindrical shape, the inwall of housing 101 is located at by stator 102, and stator 102 and housing 101 are coaxially arranged, the inside of stator 102 is located at by rotor 103; The lateral wall of housing 101 is provided with the cooling water pipe 104 of this housing 101 of spiral surrounding, and the two ends of cooling water pipe 104 are respectively equipped with input port 105 and delivery outlet 106, and described cooling water pipe 104 is one-body molded with housing 101.
The rear and front end of described housing 101 is respectively equipped with protecgulum 108 and bonnet 109, and described rotor 103 is located in axle 110, and the two ends of this axle 110 are rotationally connected with described protecgulum 108 and bonnet 109 respectively.Described protecgulum 108 is connected with the pusher 107 for driving the cooling media of cooling water pipe 104 inside to flow away from one end of housing 101, this pusher 107 is connected with the delivery outlet 106 of cooling water pipe 104 by pipeline, and this pusher 107 is connected with axle 110, pusher 107 can be driven to work when axle 110 is rotated.
Embodiment 3
A kind of motor with cooling structure, comprise motor body, described motor body comprises housing 101, stator 102 and rotor 103, described housing 101 and stator 102 are cylindrical shape, the inwall of housing 101 is located at by stator 102, and stator 102 and housing 101 are coaxially arranged, the inside of stator 102 is located at by rotor 103; The lateral wall of housing 101 is provided with the cooling water pipe 104 of this housing 101 of spiral surrounding, and the two ends of cooling water pipe 104 are respectively equipped with input port 105 and delivery outlet 106, and described cooling water pipe 104 is one-body molded with housing 101.
The rear and front end of described housing 101 is respectively equipped with protecgulum 108 and bonnet 109, and described rotor 103 is located in axle 110, and the two ends of this axle 110 are rotationally connected with described protecgulum 108 and bonnet 109 respectively.Protecgulum 108 and bonnet 109 are respectively equipped with fore bearing 111 and rear bearing 111, and the two ends of described axle 110 are arranged with bearing 111 respectively, and two bearings 111 are located in described fore bearing 111 and rear bearing 111 respectively.Axle 110 is extended described bonnet 109 with the link of bonnet 109 and is formed elongated end, and the outside of bonnet 109 is provided with dust cap 112.
Described protecgulum 108 is connected with the pusher 107 for driving the cooling media of cooling water pipe 104 inside to flow away from one end of housing 101, this pusher 107 is connected with the delivery outlet 106 of cooling water pipe 104 by pipeline, and this pusher 107 is connected with axle 110, pusher 107 can be driven to work when axle 110 is rotated.
Embodiment 4
A kind of motor with cooling structure, comprise motor body, described motor body comprises housing 101, stator 102 and rotor 103, described housing 101 and stator 102 are cylindrical shape, the inwall of housing 101 is located at by stator 102, and stator 102 and housing 101 are coaxially arranged, the inside of stator 102 is located at by rotor 103; The lateral wall of housing 101 is provided with the cooling water pipe 104 of this housing 101 of spiral surrounding, and the two ends of cooling water pipe 104 are respectively equipped with input port 105 and delivery outlet 106, and described cooling water pipe 104 is one-body molded with housing 101.
The rear and front end of described housing 101 is respectively equipped with protecgulum 108 and bonnet 109, and described rotor 103 is located in axle 110, and the two ends of this axle 110 are rotationally connected with described protecgulum 108 and bonnet 109 respectively.Protecgulum 108 and bonnet 109 are respectively equipped with fore bearing 111 and rear bearing 111, and the two ends of described axle 110 are arranged with bearing 111 respectively, and two bearings 111 are located in described fore bearing 111 and rear bearing 111 respectively.Axle 110 is extended described bonnet 109 with the link of bonnet 109 and is formed elongated end, and the outside of bonnet 109 is provided with dust cap 112.
Described protecgulum 108 is connected with the pusher 107 for driving the cooling media of cooling water pipe 104 inside to flow away from one end of housing 101, this pusher 107 is connected with the delivery outlet 106 of cooling water pipe 104 by pipeline, and this pusher 107 is connected with axle 110, pusher 107 can be driven to work when axle 110 is rotated.
The outside of housing 101 is also connected with control box 113.Cooling water pipe 104 comprises multi-turn and is in charge of, every two circles are adjacent be in charge of between all there is gap.The lateral wall of housing 101 is also provided with multiple bracing frame 114, and the bottom surface of all bracing frames 114 is positioned at same plane.Housing 101 adopts aluminium alloy to make, and cooling water pipe 104 adopts stainless steel to make.
The foregoing is only the preferred embodiment of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. with a motor for cooling structure, it is characterized in that, comprise motor body, described motor body comprises housing, stator and rotor, and described housing and stator are cylindrical shape, and the inwall of housing is located at by stator, and stator and housing are coaxially arranged, the inside of stator is located at by rotor; The lateral wall of housing is provided with the cooling water pipe of this housing of spiral surrounding, and the two ends of cooling water pipe are respectively equipped with input port and delivery outlet, described cooling water pipe and housing one-body molded.
2. the motor with cooling structure according to claim 1, is characterized in that, input port or the delivery outlet of described cooling water pipe are connected with pusher, and this pusher flows for driving the cooling media of cooling water pipe inside.
3. the motor with cooling structure according to claim 1, is characterized in that, the rear and front end of described housing is respectively equipped with protecgulum and bonnet, and described rotor is located in axle, and the two ends of this axle are rotationally connected with described protecgulum and bonnet respectively.
4. the motor with cooling structure according to claim 3, it is characterized in that, described protecgulum and bonnet are respectively equipped with front-end bearing pedestal and rear bearing block, and the two ends of described axle are arranged with bearing respectively, and two bearings are located in described front-end bearing pedestal and rear bearing block respectively.
5. the motor with cooling structure according to claim 3 or 4, is characterized in that, the link of described axle and bonnet extends described bonnet and forms elongated end, and the outside of bonnet is provided with dust cap.
6. the motor with cooling structure according to claim 3 or 4, it is characterized in that, described protecgulum is connected with the pusher for driving the cooling media of cooling water pipe inside to flow away from one end of housing, this pusher is connected with the delivery outlet of cooling water pipe by pipeline, and this pusher is connected with axle, pusher work can be driven when central axis.
7. the motor with cooling structure according to claim 1, is characterized in that, the outside of described housing is also connected with control box.
8. the motor with cooling structure according to claim 1, is characterized in that, described cooling water pipe comprises multi-turn and is in charge of, every two circles are adjacent be in charge of between all there is gap.
9. the motor with cooling structure according to claim 1, is characterized in that, the lateral wall of described housing is also provided with multiple bracing frame, and the bottom surface of all bracing frames is positioned at same plane.
10. the motor with cooling structure according to claim 1, is characterized in that, described housing and cooling water pipe all adopt corrosion resistant metal to make.
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| CN201510487181.XA CN104979936B (en) | 2015-08-10 | 2015-08-10 | A kind of motor with cooling structure |
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| CN201510487181.XA CN104979936B (en) | 2015-08-10 | 2015-08-10 | A kind of motor with cooling structure |
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| CN104979936B CN104979936B (en) | 2018-03-09 |
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| CN106300779A (en) * | 2016-08-20 | 2017-01-04 | 宁波云控电气有限公司 | A kind of liquid-cooled motor and control device all-in-one thereof |
| 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 |
| CN110635607A (en) * | 2018-06-22 | 2019-12-31 | 群光电能科技股份有限公司 | Integrated motor and integrated heat dissipation system |
| CN113993776A (en) * | 2019-06-10 | 2022-01-28 | Rmu工程有限责任公司 | Electric gear motor assembly for a bicycle |
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| CN204794508U (en) * | 2015-08-10 | 2015-11-18 | 陆雄机械（浙江）有限公司 | Motor with cooling structure |
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| JP2004229418A (en) * | 2003-01-23 | 2004-08-12 | Tamagawa Seiki Co Ltd | Water-cooling structure of motor |
| CN102035306A (en) * | 2011-01-18 | 2011-04-27 | 江西特种电机股份有限公司 | Water cooling method and cooling device for motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106300779A (en) * | 2016-08-20 | 2017-01-04 | 宁波云控电气有限公司 | A kind of liquid-cooled motor and control device all-in-one thereof |
| 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 |
| CN110635607A (en) * | 2018-06-22 | 2019-12-31 | 群光电能科技股份有限公司 | Integrated motor and integrated heat dissipation system |
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| CN113993776A (en) * | 2019-06-10 | 2022-01-28 | Rmu工程有限责任公司 | Electric gear motor assembly for a bicycle |
| CN113993776B (en) * | 2019-06-10 | 2023-11-07 | Rmu工程有限责任公司 | Electric gear motor assembly for a bicycle |
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| CN104979936B (en) | 2018-03-09 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Address after: Taizhou City, Zhejiang province 318000 Jiaojiang District Three Street No. 569-2 San Lu Hong Applicant after: Zhejiang Xin Lu Xiongjian cheerful agriculture machinery corp Address before: Taizhou City, Zhejiang province 318000 Jiaojiang District Three Street No. 569-2 San Lu Hong Applicant before: Luxiong Machine (Zhejiang) Co., Ltd. |
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