CN109861446A - The cooling hardened structure of rotor dynamic balancing in a kind of motor - Google Patents
The cooling hardened structure of rotor dynamic balancing in a kind of motor Download PDFInfo
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- CN109861446A CN109861446A CN201910119815.4A CN201910119815A CN109861446A CN 109861446 A CN109861446 A CN 109861446A CN 201910119815 A CN201910119815 A CN 201910119815A CN 109861446 A CN109861446 A CN 109861446A
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- dynamic balancing
- motor
- plate ontology
- balancing plate
- rotor
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Abstract
It is an object of the invention to disclose the cooling hardened structure of rotor dynamic balancing in a kind of motor, it includes dynamic balancing plate ontology, the outer end face of the dynamic balancing plate ontology is provided with the molding multiple ribs of high pressure die casting and center annular groove, the inner face of the dynamic balancing plate ontology is provided with the positioning convex key matched with the mounting hole of motor rotor core, the portion Zhong Xin Grains is provided among the dynamic balancing plate ontology, it is connected between the portion Zhong Xin Grains and the dynamic balancing plate body peripheral edge by rib, is provided with wind guide tank between the rib；Compared with prior art, structure is simple, good heat dissipation effect, easy to assembly, low in cost, high production efficiency, preferably ensure that motor motor reliability service under hot environment, high speed rotation, achieves the object of the present invention.
Description
Technical field
The present invention relates to a kind of hardened structure of rotor dynamic balancing, in particular to cooling rotor dynamic balancing is hardened in a kind of motor
Structure.
Background technique
With the continuous progress of science and technology, New energy automobile motor just develops towards the direction of high revolving speed, high power density, electricity
The problem of temperature rise of machine also increasingly highlights, and the mainstream technology route of New energy automobile motor is permanent magnet synchronous motor at this stage,
Magnet steel is very sensitive to operating temperature, and when magnet steel temperature is excessively high, the magnetic property of magnet steel can sharply decline, or even the permanent loss of excitation of meeting,
Seriously affect the performance and reliability of motor.
Currently, the dynamic balancing plate of permanent magnet synchronous motor is fixed, there are mainly two types of modes, and first way: dynamic balancing inner hole is opened
Convex key, convex key are stuck in shaft keyway, prevent rotor from generating phase between dynamic balancing plate and shaft during high speed or positive and negative rotation
To rotation.The second way: the uniformly distributed circular hole of a circle, both ends dynamic balancing plate and rotor core riveting are opened in dynamic balancing plate middle position
Nail or screw prevent from relatively rotating between dynamic balancing plate and shaft to drawing.
Under the conditions of high-power, high speed rotational operation, motor temperature rise rises fast motor, influences motor performance, or even generate
Magnet steel permanently demagnetizes risk.Rotor dynamic balancing plate centrifugal force in rotor high-speed rotation is big, is easy between dynamic balancing plate and shaft
It produces relative rotation, rotor dynamic balancing quality is deteriorated, and generates vibration, generates vibrating noise, accelerates bearing wear.
It is accordingly required in particular to which the cooling hardened structure of rotor dynamic balancing in a kind of motor, above-mentioned existing to solve the problems, such as.
Summary of the invention
The purpose of the present invention is to provide the hardened structures of rotor dynamic balancing cooling in a kind of motor, not for the prior art
Foot effectively solves the problems, such as that motor cavity body local temperature is excessively high in the prior art and active heat removal is difficult, simplify assemble and
Processing technology, solves dynamic balancing board machining process or assembly technology is complicated, and production efficiency is low, and the technology of high production cost is asked
Topic.
Technical problem solved by the invention can be realized using following technical scheme:
The cooling hardened structure of rotor dynamic balancing in a kind of motor, which is characterized in that it includes dynamic balancing plate ontology, the dynamic balancing plate
The outer end face of ontology is provided with the molding multiple ribs of high pressure die casting and center annular groove, the inner end of the dynamic balancing plate ontology
Face is provided with the positioning convex key matched with the mounting hole of motor rotor core, is provided with center among the dynamic balancing plate ontology
The portion Grains is connected by rib between the portion Zhong Xin Grains and the dynamic balancing plate body peripheral edge, is set between the rib
It is equipped with wind guide tank.
In one embodiment of the invention, transition fit between the portion Zhong Xin Grains and machine shaft.
In one embodiment of the invention, the peace that the dynamic balancing plate ontology passes through positioning convex key and motor rotor core
It fills hole and interconnects fixation.
In one embodiment of the invention, the rib is distributed on the dynamic balancing plate ontology by 60 ° of even angles.
In one embodiment of the invention, the width of the wind guide tank is 10mm.
The cooling hardened structure of rotor dynamic balancing in motor of the invention, compared with prior art, structure is simple, heat dissipation effect
Good, easy to assembly, low in cost, high production efficiency preferably ensure that motor motor under hot environment, high speed rotation is reliable
Operation, achieves the object of the present invention.
The features of the present invention sees the detailed description of the drawings of the present case and following preferable embodiment and obtains clearly
Solution.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of cooling rotor dynamic balancing plate inner face in motor of the invention；
Fig. 2 is the structural schematic diagram of cooling rotor dynamic balancing plate outer end face in motor of the invention；
Fig. 3 is the schematic diagram of the section structure of cooling rotor dynamic balancing plate in motor of the invention；
Fig. 4 is the structural schematic diagram of rotor dynamic balancing plate and rotor assembly of the invention.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Embodiment
As shown in Figures 1 to 4, the cooling hardened structure of rotor dynamic balancing in motor of the invention, it includes dynamic balancing plate ontology
10, the outer end face of dynamic balancing plate ontology 10 is provided with multiple ribs 11 and center annular groove 12, the inner face of dynamic balancing plate ontology 10
It is provided with positioning convex key 13, is provided with the portion middle heart Grains 14, the portion middle heart Grains 14 and dynamic balancing plate ontology among dynamic balancing plate ontology 10
It is connected between 10 neighboring by rib 11, wind guide tank 15 is provided between rib 11.
In the present embodiment, the rib 11 of 10 outer end face of dynamic balancing plate ontology and center annular groove 12 by high pressure die casting at
Type, rib 11 play disturbance motor cavity air effect in rotor rotation process, and center annular groove 12 plays control air flow direction
And the effect of flow, it is ensured that machine cavity internal heat generation is smaller, and temperature blows to larger, the temperature height that generates heat compared with the air of lower part
Part, make equalized temperature in machine cavity, the higher part of temperature allowed to be adequately cooled.
In the present embodiment, transition fit between the portion Zhong Xin Grains 14 and machine shaft 20, convenient installation between the two.
In the present embodiment, rib 11 is distributed on dynamic balancing plate ontology 10 by 60 ° of even angles；The width of wind guide tank 15
For 10mm.
Two on 10 inner face of dynamic balancing plate ontology positioning convex keys 13, which cooperate, removes repeated hole on rotor cores 30, can be to prevent
Stop balance plate produces relative rotation under high rotational speeds with shaft 20, it is ensured that rotor dynamic balancing quality will not change, and turn
Sub- dynamic balance checking uses duplicate removal method, the duplicate removal on both ends dynamic balancing rib.
The cooling hardened structure of rotor dynamic balancing, efficiently solves motor cavity body local temperature mistake in motor of the invention
Height, the problem of active heat removal difficulty.Increase by two positioning convex keys 13 by medial surface, simplify assembly and processing technology, solves
The technical issues of dynamic balancing board machining process or assembly technology are complicated, and production efficiency is low, high production cost.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention, the claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (5)
1. the cooling hardened structure of rotor dynamic balancing in a kind of motor, which is characterized in that it includes dynamic balancing plate ontology, the dynamic balancing
The outer end face of plate ontology is provided with the molding multiple ribs of high pressure die casting and center annular groove, the dynamic balancing plate ontology it is interior
End face is provided with the positioning convex key matched with the mounting hole of motor rotor core, is provided among the dynamic balancing plate ontology
The portion Xin Grains is connected, between the rib by rib between the portion Zhong Xin Grains and the dynamic balancing plate body peripheral edge
It is provided with wind guide tank.
2. the cooling hardened structure of rotor dynamic balancing in motor as described in claim 1, which is characterized in that the portion Zhong Xin Grains and electricity
Transition fit between machine shaft.
3. the cooling hardened structure of rotor dynamic balancing in motor as described in claim 1, which is characterized in that the dynamic balancing plate ontology
It is interconnected and is fixed by the mounting hole of positioning convex key and motor rotor core.
4. the cooling hardened structure of rotor dynamic balancing in motor as described in claim 1, which is characterized in that the rib presses 60 ° of angles
Degree is evenly distributed on the dynamic balancing plate ontology.
5. the cooling hardened structure of rotor dynamic balancing in motor as described in claim 1, which is characterized in that the width of the wind guide tank
For 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910119815.4A CN109861446A (en) | 2019-02-18 | 2019-02-18 | The cooling hardened structure of rotor dynamic balancing in a kind of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910119815.4A CN109861446A (en) | 2019-02-18 | 2019-02-18 | The cooling hardened structure of rotor dynamic balancing in a kind of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109861446A true CN109861446A (en) | 2019-06-07 |
Family
ID=66898139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910119815.4A Pending CN109861446A (en) | 2019-02-18 | 2019-02-18 | The cooling hardened structure of rotor dynamic balancing in a kind of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109861446A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022041136A1 (en) * | 2020-08-28 | 2022-03-03 | 舍弗勒技术股份两合公司 | Balancing plate and electric motor |
| WO2022041117A1 (en) * | 2020-08-28 | 2022-03-03 | 舍弗勒技术股份两合公司 | Balance plate and inner rotor motor |
| CN116647079A (en) * | 2023-05-24 | 2023-08-25 | 小米汽车科技有限公司 | Driving motor and vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020096966A1 (en) * | 2001-01-23 | 2002-07-25 | Jordan Lawrence E. | Winding restraint on wound rotor generators or motors and method for forming the same |
| CN102684340A (en) * | 2012-05-23 | 2012-09-19 | 佛山市威灵洗涤电机制造有限公司 | Permanent-magnet rotor with embedded magnetic steels |
| CN207098799U (en) * | 2017-07-31 | 2018-03-13 | 华域汽车电动系统有限公司 | A kind of rotor core and the riveting fixed structure of rotating shaft |
| CN207459903U (en) * | 2017-11-03 | 2018-06-05 | 长城汽车股份有限公司 | Motor and its rotor balancing plate |
| CN209963897U (en) * | 2019-02-18 | 2020-01-17 | 浙江龙芯电驱动科技有限公司 | Dynamic balance plate structure of cooling rotor in motor |
-
2019
- 2019-02-18 CN CN201910119815.4A patent/CN109861446A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020096966A1 (en) * | 2001-01-23 | 2002-07-25 | Jordan Lawrence E. | Winding restraint on wound rotor generators or motors and method for forming the same |
| CN102684340A (en) * | 2012-05-23 | 2012-09-19 | 佛山市威灵洗涤电机制造有限公司 | Permanent-magnet rotor with embedded magnetic steels |
| CN207098799U (en) * | 2017-07-31 | 2018-03-13 | 华域汽车电动系统有限公司 | A kind of rotor core and the riveting fixed structure of rotating shaft |
| CN207459903U (en) * | 2017-11-03 | 2018-06-05 | 长城汽车股份有限公司 | Motor and its rotor balancing plate |
| CN209963897U (en) * | 2019-02-18 | 2020-01-17 | 浙江龙芯电驱动科技有限公司 | Dynamic balance plate structure of cooling rotor in motor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022041136A1 (en) * | 2020-08-28 | 2022-03-03 | 舍弗勒技术股份两合公司 | Balancing plate and electric motor |
| WO2022041117A1 (en) * | 2020-08-28 | 2022-03-03 | 舍弗勒技术股份两合公司 | Balance plate and inner rotor motor |
| CN116647079A (en) * | 2023-05-24 | 2023-08-25 | 小米汽车科技有限公司 | Driving motor and vehicle |
| CN116647079B (en) * | 2023-05-24 | 2024-03-26 | 小米汽车科技有限公司 | Driving motor and vehicle |
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