CN209104925U - Flat wire winding electric machine stator - Google Patents
Flat wire winding electric machine stator Download PDFInfo
- Publication number
- CN209104925U CN209104925U CN201822082618.3U CN201822082618U CN209104925U CN 209104925 U CN209104925 U CN 209104925U CN 201822082618 U CN201822082618 U CN 201822082618U CN 209104925 U CN209104925 U CN 209104925U
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- stator
- electric machine
- flat wire
- slot
- conductor segment
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Abstract
The utility model provides a kind of flat wire winding electric machine stator.Including multiple stator slots and the winding being set in multiple stator slots；Winding includes multiple conductor segments, and each conductor segment has the straightway being set in stator slot and two linkage sections positioned at stator slot two sides；Each linkage section of each conductor segment welds together to the corresponding linkage section of connected another conductor segment；And stator is during installation, after each conductor segment is linearly inserted into corresponding stator slot, is welded after re-forming corresponding two linkage sections；Or each conductor segment after being inserted into corresponding stator slot, is welded by being linearly initially formed a linkage section after re-forming another linkage section.It solves the problems, such as that the bending part paint film of traditional hair fastener type coil punching press or forming process coil of turning one's head collides with Damage to insulation, while realizing the offline automated production of least cost, save time and the cost of production, improve product qualification rate.
Description
Technical field
The utility model relates to electric machine structure fields, more particularly to a kind of flat wire winding electric machine stator.
Background technique
With the continuous development of New-energy electric vehicle, driving motor high power density, the demand of small size are further
It improves, this just needs the innovation support of new construction, new material, new process.Since the copper factor of flat wire winding is high, function can be improved
Rate density simultaneously can reduce current density, reduce temperature rise, improve electric efficiency.Therefore, stator winding coil has from round wires to flat wire
The trend of development.But flat type copper wire is rigidly big, and bending is bad, offline again after need to being formed with particular manufacturing craft, flat wire coil
Molding and inserting-coil process are a difficult points.It is at present flat wire hair fastener type coil 20 (as depicted in figs. 1 and 2) with more method,
Flat wire is cut into straight line different in size according to different spans, recycles punching press or torsional mode that flat wire is fabricated to not
It is offline with the hair fastener type coil of span, then with manual or automaticization mode, it is turned one's head and is welded in welding ends again after offline
Process, stator such as Fig. 3 after molding.The molding mode of this hair fastener coil requires coil surface insulating layer ductility and toughness non-
The bending part paint film of Chang Gao, punching press or twist process coil is easy gouge, influences the insulation performance of coil.In addition, in line style
It will increase offline difficulty in the case where more, automating offline is even more that difficulty is big, increases production cost.
Utility model content
The purpose of the utility model is to overcome at least one defects of the stator of existing flat wire winding electric machine, provide a kind of new
The flat wire winding electric machine stator of grain husk, can be welded at the both ends of conductor segment, will not be damaged to the insulating layer of coil as much as possible,
It is also easier to realize automation, saves time and the cost of production.
Thus the utility model proposes a kind of flat wire winding electric machine stator, including multiple stator slots and it is set to multiple institutes
State the winding in stator slot；It is characterized in that, the winding includes multiple conductor segments, each conductor segment, which has, is set to institute
State the straightway in stator slot and two linkage sections positioned at the stator slot two sides；
Each linkage section of each conductor segment linkage section corresponding to connected another conductor segment welds
Together；And the stator is during installation, after each conductor segment is linearly inserted into the corresponding stator slot, re-forms phase
It is welded after two linkage sections answered；Or each conductor segment is inserted by being linearly initially formed the linkage section
After entering the corresponding stator slot, welded after re-forming another linkage section.
Further, the end of each linkage section extends along the direction for the axis for being parallel to the stator, to carry out
Welding.
Further, each stator slot is semi-closed slot or closed slot.
Further, the flat wire winding electric machine stator further includes preset in the corresponding stator slot of conductor segment insertion
Insulation tube in the stator slot.
Further, the quantity of insulation tube described in each stator slot is one or more.
Further, it made of the insulation tube is wound in a manner of continuous helical as ribbon insulation system, is square
Seal.
Further, the ribbon insulation system is stripped insulating paper；And
The insulating paper includes one layer of paper and one layer of insulating film for being set to the paper side；Or, the insulating paper includes
Two layers of paper and one layer of insulating film being set between two layers of the paper；
The insulating film is polyimide film.
Further, there are four the straightways for setting in each stator slot.
In the flat wire winding electric machine stator of the utility model, coil only needs single straight wire or half of half-formed line
It encloses, unformed one side is turned one's head together after embedding, and last stator both ends are directly welded, and will not be damaged to the insulation of coil in this way
Layer is also easier to realize automation, saves time and the cost of production.I.e. the utility model solves traditional hair fastener type coil punching
Press or turn one's head forming process coil bending part paint film collide with Damage to insulation the problem of, while realize least cost it is offline from
Dynamic metaplasia produces, and saves time and the cost of production, improves product qualification rate.
Further, since insulation tube is made by the way of winding, manufacture craft is greatly simplified, motor is reduced
Manufacturing cost, moreover it is possible to which the copper factor for improving conducting wire further increases the power density of motor.Since insulating paper can wrap in insulation tube
One layer of one tunic of paper is included, is worked it out according to folded packet mode is wound, different packet stack rates can be set according to different voltages demand, it is thick
Actually there is multilayer insulation paper on degree, but it is essentially identical compared with traditional approach to can control actual insulation thickness, but due to playing master
Want the insulating film number of plies of insulating effect is practical increased, insulation performance can greatly enhance.
According to the accompanying drawings to the detailed description of the utility model specific embodiment, those skilled in the art will be more
Add the above-mentioned and other purposes, advantages and features of clear the utility model.
Detailed description of the invention
Some specific realities of the utility model are described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter
Apply example.Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that
The drawings are not necessarily drawn to scale.In attached drawing:
Fig. 1 and Fig. 2 is respectively the schematic diagram of the different angle of existing flat wire hair fastener type coil；
Fig. 3 is the schematic diagram of existing motor stator；
Fig. 4 is the schematic cross sectional views according to the flat wire winding electric machine stator of the utility model one embodiment；
Fig. 5 and Fig. 6 is the schematic diagram in the utility model before conductor segment insertion stator slot respectively；
Fig. 7 is in the utility model after conductor segment insertion stator slot and treated schematic diagram；
Fig. 8 is the schematic diagram after two conductor segments are welded.
Fig. 9 is the schematic elementary diagram of a phase winding in the stator of flat wire winding electric machine shown in Fig. 4；
Figure 10 is the schematic diagram of a stator slot in the stator of flat wire winding electric machine shown in Fig. 4
Figure 11 is the forming process schematic diagram of insulation tube.
Specific embodiment
Fig. 4 is the schematic cross sectional views according to the flat wire winding electric machine stator of the utility model one embodiment.Such as Fig. 4 institute
Show and refer to Fig. 5 to Fig. 8, the utility model embodiment provides a kind of flat wire winding electric machine stator, it may include multiple stator slots
50 and the winding that is set in multiple stator slots 50.Winding includes multiple conductor segments 30, and each conductor segment 30, which has to be set to, determines
Straightway 31 in pilot trench 50 and two linkage sections 32 positioned at 50 two sides of stator slot.Each linkage section 32 of each conductor segment 30
Weld together to the corresponding linkage section 32 of connected another conductor segment 30, the position as indicated by the example shown 33 is welded
It connects.Moreover, stator is during installation, as shown in Fig. 5, Fig. 7 and Fig. 8, each conductor segment 30 is linearly axially inserted into corresponding stator
It after slot 50, is welded after re-forming corresponding two linkage sections 32, i.e., is first inserted into and carries out elbow, welding again.Or, such as Fig. 6, figure
Shown in 7 and Fig. 8, each conductor segment 30 is by being linearly initially formed a linkage section 32, after being axially inserted into corresponding stator slot 50, then shape
At being welded after another linkage section 32, i.e., an elbow, insertion are first carried out, then carry out another elbow and welding.
The method that the flat wire winding electric machine stator uses both ends welding, offline rear unfashioned one side is turned one's head together, such as Fig. 5
To Fig. 7, last stator both ends are directly welded, such as Fig. 8.Coil only needs single straight wire or half of half-formed coil, embedding
Unformed one side is turned one's head together after line, and last stator both ends are directly welded, and will not be damaged to the insulating layer of coil in this way, also more
Automation easy to accomplish saves time and the cost of production.
Further, the end of each linkage section 32 extends along the direction for the axis for being parallel to stator, to be welded.Often
A stator slot 50 is semi-closed slot or closed slot, can not have slot wedge.Straightway 31 there are four being set in each stator slot 50.
In some embodiments of the utility model, offline rear unfashioned one or both ends need to design specific equipment
Or tooling is turned one's head, wire insulation is not damaged after guarantee is turned one's head.Inventor is in view of automating offline and welding, therefore coil
Offline mode is single regular as far as possible, as shown in figure 9, reducing automation complexity.
Specifically, it was known that slot number 60, number of poles 10, every slot conductor number are 4.Wave winding coil elementary diagram as shown in figure 9,
Coil is straight copper wire (such as Fig. 5), is inserted into 4 conducting wires (such as Figure 10), two rectilinear ends after conducting wire has been inserted in every slot from top to bottom respectively
Turn one's head (such as Fig. 7) respectively, finally welds at both ends, stator after molding such as Fig. 4.Alternatively, known slot number 60, number of poles 10, every slot
Conductor number is 4.Wave winding coil elementary diagram as shown in figure 9, coil is half-formed coil (such as Fig. 6), in every slot respectively from
Top to bottm is inserted into 4 conducting wires (such as Figure 10), and the half-formed coil linear end of stator is turned one's head (such as Fig. 7) after conducting wire has been inserted, finally
Stator such as Fig. 4 after the welding fabrication of both ends.
In some embodiments of the utility model, as shown in Figure 10 and Figure 11, flat wire winding electric machine stator, further include
Conductor segment 30 is inserted into the insulation tube 40 that corresponding stator slot 50 is preset in stator slot 50.That is, direct-insert coil is in stator
In the case that slot 50 has been laid out insulating paper, i.e., molding insulation tube 40 is first arranged in stator slot 50.
Further, the quantity of insulation tube 40 is one or more in each stator slot 50.Insulation tube 40 is exhausted by ribbon
Edge structure 41 wound in a manner of continuous helical made of, the seal that is square.Ribbon insulation system 41 is with continuous spiral shell
The mode of rotation winds also referred to as folded packet mode, that is to say, that part ribbon insulation system 41 can be at winding part
Outside, in unwound part winding after inside.Further, during ribbon insulation system 41 is wound, lead to
It crosses splicing or molding is fixed in welding manner.Specifically, it in the edge cementing of ribbon insulation system 41, or utilizes
As the particular form of ultrasonic bonding forms insulation tube 40.In some preferred embodiments of the utility model, ribbon
Insulation system 41 is stripped insulating paper；And insulating paper includes one layer of paper and one layer of insulating film for being set to paper side；Or,
Insulating paper includes two layers of paper and one layer of insulating film being set between two layers of paper；Insulating film is polyimide film.It is practical new at this
In some alternate embodiments of type, can also other methods production insulation tube 40, when installation, insulation tube 40 is preset in stator slot
It is interior.
So far, although those skilled in the art will appreciate that the more of the utility model have been shown and described in detail herein
A exemplary embodiment still, still can be according to the utility model public affairs in the case where not departing from the spirit and scope of the utility model
The content opened directly determines or derives many other variations or modifications for meeting the utility model principle.Therefore, this is practical new
The range of type is understood that and regards as to cover all such other variations or modifications.
Claims (8)
1. a kind of flat wire winding electric machine stator, including multiple stator slots and the winding being set in multiple stator slots；It is special
Sign is that the winding includes multiple conductor segments, each conductor segment have the straightway that is set in the stator slot and
Two linkage sections positioned at the stator slot two sides；
Each linkage section of each conductor segment is welded on one to the corresponding linkage section of connected another conductor segment
It rises；And the stator is during installation, after each conductor segment is linearly inserted into the corresponding stator slot, re-forms corresponding
It is welded after two linkage sections；Or each conductor segment is inserted into phase by being linearly initially formed the linkage section
After answering the stator slot, welded after re-forming another linkage section.
2. flat wire winding electric machine stator according to claim 1, which is characterized in that
The end of each linkage section extends along the direction for the axis for being parallel to the stator, to be welded.
3. flat wire winding electric machine stator according to claim 1, which is characterized in that
Each stator slot is semi-closed slot or closed slot.
4. flat wire winding electric machine stator according to claim 1, which is characterized in that further include being inserted into phase in the conductor segment
The stator slot is answered to be preset in the insulation tube in the stator slot.
5. flat wire winding electric machine stator according to claim 4, which is characterized in that
The quantity of insulation tube described in each stator slot is one or more.
6. flat wire winding electric machine stator according to claim 4 or 5, which is characterized in that
The insulation tube wound in a manner of continuous helical as ribbon insulation system made of, the seal that is square.
7. flat wire winding electric machine stator according to claim 6, which is characterized in that
The ribbon insulation system is stripped insulating paper；And
The insulating paper includes one layer of paper and one layer of insulating film for being set to the paper side；Or, the insulating paper includes two layers
Paper and one layer of insulating film being set between two layers of the paper；
The insulating film is polyimide film.
8. flat wire winding electric machine stator according to claim 1, which is characterized in that
There are four the straightways for setting in each stator slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822082618.3U CN209104925U (en) | 2018-12-12 | 2018-12-12 | Flat wire winding electric machine stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822082618.3U CN209104925U (en) | 2018-12-12 | 2018-12-12 | Flat wire winding electric machine stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209104925U true CN209104925U (en) | 2019-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822082618.3U Active CN209104925U (en) | 2018-12-12 | 2018-12-12 | Flat wire winding electric machine stator |
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| CN (1) | CN209104925U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114498972A (en) * | 2022-01-25 | 2022-05-13 | 丽水方德智驱应用技术研究院有限公司 | Segmented skewed slot stator assembly and flat wire motor |
-
2018
- 2018-12-12 CN CN201822082618.3U patent/CN209104925U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114498972A (en) * | 2022-01-25 | 2022-05-13 | 丽水方德智驱应用技术研究院有限公司 | Segmented skewed slot stator assembly and flat wire motor |
| CN114498972B (en) * | 2022-01-25 | 2023-10-27 | 丽水方德智驱应用技术研究院有限公司 | Sectional chute stator assembly and flat wire motor |
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