CN109301962A - A kind of winding overhang encapsulating liquid feeding cool electric machine - Google Patents
A kind of winding overhang encapsulating liquid feeding cool electric machine Download PDFInfo
- Publication number
- CN109301962A CN109301962A CN201811518704.2A CN201811518704A CN109301962A CN 109301962 A CN109301962 A CN 109301962A CN 201811518704 A CN201811518704 A CN 201811518704A CN 109301962 A CN109301962 A CN 109301962A
- Authority
- CN
- China
- Prior art keywords
- coolant pipe
- winding
- electric machine
- liquid feeding
- encapsulating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a kind of winding overhang encapsulating liquid feeding cool electric machines, it include: stator and coolant pipe, the end of the winding stator core of stator is equipped with encapsulated layer, and the end of winding stator core, the axis of cricoid coolant pipe and the axis co-axial of stator is annularly arranged in coolant pipe.By on the basis of the end encapsulating of winding stator core coil windings, increase coolant pipe, encapsulating layer can be effectively utilized and radiated, the heat of winding overhang is also directly taken away using liquid cooling loop, therefore it can effectively reduce motor winding temperature, improve the power density and overload capacity of motor.
Description
Technical field
The present invention relates to technical field of motors, more particularly to a kind of winding overhang encapsulating liquid feeding cool electric machine.
Background technique
The winding overhang temperature of motor is usually the highest point of motor temperature, therefore the temperature of electric motor winding end decides
The working performance and heat dissipation performance of complete machine.
Currently in order to solving winding overhang heat dissipation problem, it is primarily present following two solution: one is increasing motor
Structure increases material utilization amount and heat dissipation area；The second is electric motor winding end encapsulating, improves capacity of heat transmission.The first is solved
Scheme can reduce the power density of motor, and in second although capacity of heat transmission can be improved in solution, but its heat dissipation effect has
Limit.
Therefore, the heat dissipation effect for how improving electric motor winding end is the skill that those skilled in the art need to solve at present
Art problem.
Summary of the invention
In view of this, can be effectively improved scattered the object of the present invention is to provide a kind of winding overhang encapsulating liquid feeding cool electric machine
Thermal effect.
To achieve the above object, the invention provides the following technical scheme:
A kind of winding overhang encapsulating liquid feeding cool electric machine, comprising: stator and coolant pipe, the winding stator core of the stator
End be equipped with encapsulated layer, the end of the winding stator core is annularly arranged in the coolant pipe, cricoid described cold
But the axis co-axial of the axis of liquid pipe and the stator.
Preferably, the coolant pipe is located in the encapsulated layer, and the inlet and liquid outlet of the coolant pipe are from institute
It states in encapsulated layer and stretches out.
Preferably, the coolant pipe is monocycle shape or polycyclic structures.
Preferably, the coolant pipe is metal coolant pipe.
Preferably, the coolant pipe is externally coated with insulating layer.
Preferably, the insulating layer is insulating resin layer or insulating lacquer layer.
Preferably, the encapsulating layer is resin layer or heat conduction silicon layer.
It preferably, further include shell and rotor, the rotor is located in the stator, and the winding stator core is sleeved on
In the shell, the both ends of the shell are equipped with end cap, and the both ends of the rotor are fixed on the end cap by bearing, described
The inlet and liquid outlet of coolant pipe are stretched out from the shell or are stretched out from the end cap or one from the shell
Upper stretching, another is stretched out from the end cap.
Compared with prior art, above-mentioned technical proposal has the advantage that
A kind of winding overhang encapsulating liquid feeding cool electric machine provided by the present invention, comprising: stator and coolant pipe, stator around
The end of group stator core is equipped with encapsulated layer, and the end of winding stator core, cricoid cooling is annularly arranged in coolant pipe
The axis of liquid pipe and the axis co-axial of stator.By increasing cold on the basis of the end encapsulating of winding stator core coil windings
But liquid pipe can effectively utilize encapsulating layer and radiate, the heat of winding overhang is also directly taken away using liquid cooling loop, because
This can effectively reduce motor winding temperature, improve the power density and overload capacity of motor.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 shows for a kind of structure of winding overhang encapsulating liquid feeding cool electric machine provided by a kind of specific embodiment of the present invention
It is intended to；
Fig. 2 is a kind of stator of winding overhang encapsulating liquid feeding cool electric machine provided by a kind of specific embodiment of the present invention
Structural schematic diagram；
Fig. 3 is the partial enlargement structural representation of Fig. 2；
Fig. 4 is a kind of coolant liquid of winding overhang encapsulating liquid feeding cool electric machine provided by a kind of specific embodiment of the present invention
The structural schematic diagram of pipe.
Appended drawing reference is as follows:
1 is stator, and 2 be shell, and 3 be winding stator core, and 31 be coil windings end, and 32 be encapsulating layer, and 4 be coolant liquid
Pipe, 41 be inlet, and 42 be liquid outlet, and 5 be rotor, and 6 be left end cap, and 7 be right end cap, and 8 be bearing.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-Fig. 4 is please referred to, Fig. 1 is a kind of winding overhang encapsulating liquid feeding provided by a kind of specific embodiment of the present invention
The structural schematic diagram of cool electric machine；Fig. 2 is that a kind of winding overhang encapsulating liquid feeding provided by a kind of specific embodiment of the present invention is cold
The structural schematic diagram of the stator of motor；Fig. 3 is the partial enlargement structural representation of Fig. 2；Fig. 4 is a kind of specific embodiment party of the present invention
A kind of structural schematic diagram of the coolant pipe of winding overhang encapsulating liquid feeding cool electric machine provided by formula.
A kind of winding overhang encapsulating liquid feeding cool electric machine provided by the embodiment of the present invention, comprising: stator 1 and coolant pipe 4,
The coolant pipe 4 can be round tube, the pipe of square tube or other structures, the preferred water of cooling medium, the winding stator core of stator 1
3 end be equipped with encapsulated layer, wherein can winding stator core 3 lead end coil windings end or/and non-lead end-coil around
Group end carries out unilateral encapsulating or bilateral encapsulating, and the end of winding stator core 3 is annularly arranged in coolant pipe 4, cricoid cold
But the axis co-axial of the axis Yu stator 1 of liquid pipe 4.By on the basis of 3 31 encapsulating of coil windings end of winding stator core,
Increase coolant pipe 4, encapsulating layer 32 can be effectively utilized and radiated, also directly take away winding overhang using liquid cooling loop
Heat, therefore can effectively reduce motor winding temperature, improve the power density and overload capacity of motor.
Specifically, coolant pipe 4 is located in encapsulated layer, and the inlet 41 and liquid outlet 42 of coolant pipe 4 are from encapsulated layer
It stretches out.Coolant pipe 4 is first fixed on to the end of winding stator core 3 in encapsulating, is then carried out again filling.
Specifically, coolant pipe 4 is monocycle shape or polycyclic structures.Wherein polycyclic structures can pass through a coolant pipe
4 in a plane around forming, by polycyclic structures, can sufficiently improve cooling effect.
Wherein, coolant pipe 4 is metal coolant pipe 4.Such as to can be copper pipe, aluminum pipe or other heating conductions good
Material.
In addition, coolant pipe 4 is externally coated with insulating layer.Insulating layer is preferably insulating resin layer or insulating lacquer layer.
In addition, encapsulating layer 32 is preferably resin layer or heat conduction silicon layer.It furthermore can also be the mixed layer of other fillers.
It in one embodiment of the invention, further include shell 2 and rotor 5, rotor 5 is located in stator 1, wound stator iron
Core 3 is sleeved in shell 2, and the both ends of shell 2 are equipped with end cap, i.e. left end cap 6 and right end cap 7, and the both ends of rotor 5 pass through bearing 8
It is fixed on end cap, wherein the inside of end cap is equipped with 8, bearing of protrusion, is conducive to dissipating for bearing 8 by 8, bearing of protrusion
Heat, the inlet 41 and liquid outlet 42 of coolant pipe 4 are stretched out or are stretched out from end cap or one from shell 2 from shell 2
It stretches out, another is stretched out from end cap.The inlet 41 and liquid outlet 42 of coolant pipe 4 stretch out after with the liquid outside shell 2
Cold loop is connected.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
A kind of winding overhang encapsulating liquid feeding cool electric machine provided by the present invention is described in detail above.It answers herein
With a specific example illustrates the principle and implementation of the invention, the explanation of above example is only intended to help to manage
Solve method and its core concept of the invention.It should be pointed out that for those skilled in the art, not departing from
, can be with several improvements and modifications are made to the present invention under the premise of the principle of the invention, these improvement and modification also fall into this hair
In bright scope of protection of the claims.
Claims (8)
1. a kind of winding overhang encapsulating liquid feeding cool electric machine characterized by comprising stator and coolant pipe, the stator around
The end of group stator core is equipped with encapsulated layer, and the end of the winding stator core, ring is annularly arranged in the coolant pipe
The axis of the coolant pipe of shape and the axis co-axial of the stator.
2. winding overhang encapsulating liquid feeding cool electric machine according to claim 1, which is characterized in that the coolant pipe is located at institute
It states in encapsulated layer, the inlet and liquid outlet of the coolant pipe are stretched out from the encapsulated layer.
3. winding overhang encapsulating liquid feeding cool electric machine according to claim 2, which is characterized in that the coolant pipe is monocycle
Shape or polycyclic structures.
4. winding overhang encapsulating liquid feeding cool electric machine according to claim 1, which is characterized in that the coolant pipe is metal
Coolant pipe.
5. winding overhang encapsulating liquid feeding cool electric machine according to claim 4, which is characterized in that applied outside the coolant pipe
It is covered with insulating layer.
6. winding overhang encapsulating liquid feeding cool electric machine according to claim 5, which is characterized in that the insulating layer is insulation tree
Rouge layer or insulating lacquer layer.
7. winding overhang encapsulating liquid feeding cool electric machine according to claim 1, which is characterized in that the encapsulating layer is resin layer
Or heat conduction silicon layer.
8. winding overhang encapsulating liquid feeding cool electric machine according to any one of claims 1 to 7, which is characterized in that further include shell
Body and rotor, the rotor are located in the stator, and the winding stator core is sleeved in the shell, and the two of the shell
End is equipped with end cap, and the both ends of the rotor are fixed on the end cap by bearing, the inlet of the coolant pipe and out liquid
Mouth is stretched out from the shell or is stretched out from the end cap or one is stretched out from the shell, another is from the end
Cover stretching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811518704.2A CN109301962A (en) | 2018-12-12 | 2018-12-12 | A kind of winding overhang encapsulating liquid feeding cool electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811518704.2A CN109301962A (en) | 2018-12-12 | 2018-12-12 | A kind of winding overhang encapsulating liquid feeding cool electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109301962A true CN109301962A (en) | 2019-02-01 |
Family
ID=65141683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811518704.2A Pending CN109301962A (en) | 2018-12-12 | 2018-12-12 | A kind of winding overhang encapsulating liquid feeding cool electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109301962A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113437825A (en) * | 2021-07-05 | 2021-09-24 | 珠海格力电器股份有限公司 | Motor heat radiation structure, motor and compressor |
| CN114244022A (en) * | 2021-12-13 | 2022-03-25 | 陕西航空电气有限责任公司 | Motor with stator winding isolated from conductive cooling liquid |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101043169A (en) * | 2006-03-14 | 2007-09-26 | 通用汽车环球科技运作公司 | Method and apparatus for heat removal from electric motor winding end-turns |
| JP2008154319A (en) * | 2006-12-14 | 2008-07-03 | Hitachi Industrial Equipment Systems Co Ltd | Rotary electric machine |
| CN204858875U (en) * | 2015-06-30 | 2015-12-09 | 比亚迪股份有限公司 | Motor |
| CN206775255U (en) * | 2017-01-26 | 2017-12-19 | 上海蔚来汽车有限公司 | Stator module, Stator and electrical machine |
| JP2018121422A (en) * | 2017-01-24 | 2018-08-02 | トヨタ自動車株式会社 | Cooling structure of rotary electric machine |
-
2018
- 2018-12-12 CN CN201811518704.2A patent/CN109301962A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101043169A (en) * | 2006-03-14 | 2007-09-26 | 通用汽车环球科技运作公司 | Method and apparatus for heat removal from electric motor winding end-turns |
| JP2008154319A (en) * | 2006-12-14 | 2008-07-03 | Hitachi Industrial Equipment Systems Co Ltd | Rotary electric machine |
| CN204858875U (en) * | 2015-06-30 | 2015-12-09 | 比亚迪股份有限公司 | Motor |
| JP2018121422A (en) * | 2017-01-24 | 2018-08-02 | トヨタ自動車株式会社 | Cooling structure of rotary electric machine |
| CN206775255U (en) * | 2017-01-26 | 2017-12-19 | 上海蔚来汽车有限公司 | Stator module, Stator and electrical machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113437825A (en) * | 2021-07-05 | 2021-09-24 | 珠海格力电器股份有限公司 | Motor heat radiation structure, motor and compressor |
| CN114244022A (en) * | 2021-12-13 | 2022-03-25 | 陕西航空电气有限责任公司 | Motor with stator winding isolated from conductive cooling liquid |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190201 |
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| RJ01 | Rejection of invention patent application after publication |