CN109888955A - A kind of high power density disc type motor winding construction and its winding preparation method - Google Patents
A kind of high power density disc type motor winding construction and its winding preparation method Download PDFInfo
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- CN109888955A CN109888955A CN201910173110.0A CN201910173110A CN109888955A CN 109888955 A CN109888955 A CN 109888955A CN 201910173110 A CN201910173110 A CN 201910173110A CN 109888955 A CN109888955 A CN 109888955A
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Abstract
The present invention relates to a kind of high power density disc type motor winding construction and its winding preparation methods.Machine winding structure, it is embedded in iron core slot in the way of short distance or whole square including the identical coil rolling piece of multiple structures, or separately as iron-core-free winding straight forming, each coil rolling piece is from left to right wound by the loop construction expansion part gone out on one piece of copper sheet or wire cutting goes out and is constituted, loop construction is unfolded part and is laid on steel plate with the shape of similar wave, preferred winding radius is determined according to the number of turns of winding, preferred sectional area of wire is determined according to the area of motor inserting-coil slot, and preferred coil effective length is determined according to inside/outside diameter size.That the invention enables copper factors is higher, air gap flatness is more preferable, internal diameter gap utilization rate is higher, and the design and processing for high power density are then very useful.This winding construction is capable of providing more set of modules coil components, is convenient for motor manufacturing, to reduce manufacturing cost, reduces foozle incidence.
Description
Technical field
The present invention relates to the preparation fields more particularly to a kind of high power density disc type motor winding of winding and coil component
Structure and its winding preparation method.
Background technique
Since axial dimension is short, compact-sized, radiating condition is good etc., many advantages become current Gao Gong to disk rotary motor
The important trend of rate density electrical machine development.Such as there are these disk rotary motors stator and rotor two parts to constitute, stator with
Rotor is all in dish configuration, and air gap between the two is the plane vertical with machine shaft.Improve the copper factor and nothing of machine winding
Core design is all to improve the effective way of power of motor density, but the use of both modes will affect the smooth of entire winding
Degree then influences the uniformity of gas gap plane, therefore high power density and high-performance the two indexs, motor design and add
It is often to be difficult to take into account in terms of work.The difference of the especially winding of disc type electric machine, winding inner diameter and outer diameter is bigger, makes
It is more at the winding free time at outer diameter, and inner radius winding winding displacement space is nervous, and end space is caused to be critical, each coil is in end
Arrangement is laminated mutually, there is the risk of insulation damage layer and short circuit, such as patent No. CN108768033A and CN108015119A
The design and processing method of disclosed flat type copper wire form-wound coils, which are applied, all has similar problems in this disc-like type machine winding.
In addition, the patent No. CN101490933B and US2012/0217836A1 disclose a kind of structure shape of hairpin-type winding
U-shaped conductor is inserted into again to be bent end after wire casing and weld by formula.Copper factor and overall stiffness, but its can be improved in such winding
Winding construction is influenced by technique, can only do wave winding, and the end shaping unit tooling head before welding is complicated, automatic processing
It is difficult.It is more demanding to electromotive force and magnetomotive force especially for the motor having, need the mode spirit by using lap winding
Selection pitch living, or need to shorten by the short-chorded coil of lap winding the occasion of end, such winding is difficult to cope with.
Summary of the invention
The purpose of the present invention is to provide a kind of high power density disc type motor winding construction and its preparation method is wound, with
Solve above-mentioned technical problem, to achieve the above object the invention adopts the following technical scheme:
A kind of high power density disc type motor winding construction, including the identical coil rolling piece of multiple structures according to short distance or
The mode of whole square is embedded in iron core slot, or separately as iron-core-free winding straight forming, each coil rolling piece is by one piece of copper sheet
On go out or loop construction expansion part that wire cutting goes out from left to right winds compositions, the loop construction expansion part is similar to wave
The shape of line is laid on steel plate, determines preferred winding radius according to the number of turns of winding, the area according to motor inserting-coil slot is true
Fixed preferred sectional area of wire, determines preferred coil effective length according to inside/outside diameter size.
Preferably, the loop construction expansion part carries out insulating layer coating film treatment in the form of planar development.
Preferably, the beginning side of the loop construction expansion part constitutes line after being wound a few from inside to outside along coiling direction
Enclose rolling piece.
Preferably, the outer rim shape of the coil rolling piece is any shape round, in rectangle or ellipse with chamfering
Shape.
Preferably, after the coil rolling piece is arranged by design requirement, using connector by each phase adjacent windings
The beginning side of rolling piece and end side is welded is electrically connected, or according to actual needs by each phase adjacent windings rolling piece
Beginning side and beginning side is welded is electrically connected.
Preferably, two coil sides of the coil rolling piece are arranged in two slots with the state of upper and lower level, no overlap
Phenomenon.
Above-mentioned loop construction expansion part greatly reduces the complexity of insulating film coating process because of the state of planar development
Degree.Entire coil is wound by planar member, without boostrap around for the winding using fixed intercept, it is only necessary to use two
Kind structural member can complete the manufacture of entire winding, realize coil manufacture mechanization, improve production efficiency, be particularly suitable for single
The pattern of layer chain type winding, single or double layer lap winding.Coil produced by the invention, due to each coil rolling piece and phase
Adjacent line circle rolling piece is welded using structural member, and there is no overlapping and crossover phenomenons, is greatly reduced in coil manufacturing process and is insulated
A possibility that destruction.In addition, coil rolling piece eliminates the end nose of tradition molding flat type copper wire, reduce copper loss and coil leakage
Sense, improves electric efficiency.
A kind of winding preparation method of high power density disc type motor winding construction, includes the following steps: the coil
Structure expansion part beginning lateral edge coiling direction winds a few from inside to outside and constitutes coil rolling piece；Then by coil rolling piece according to
The scheme of design of electrical motor by short distance or it is whole be embedded in iron core slot away from a manner of, for iron-core-free winding then straight forming；This
In the case of, the coil rolling piece connector is welded to be electrically connected, according to design scheme, each mutually adjacent coil volume
It can be connect using the winding head of coil rolling piece beginning side with the end side of another coil rolling piece around part, coil volume
It is connect with the beginning side of another coil rolling piece with connector around the winding head of part end side；Or use a coil rolling piece
The winding head of beginning side is connect with the beginning side of another coil rolling piece, the winding head of coil rolling piece end side and another
The end side of coil rolling piece is connected with connector.
Compared with prior art, the invention has the following advantages that the present invention provides a kind of lap winding structure, so that copper factor
Higher, air gap flatness is more preferable, internal diameter gap utilization rate is higher, and the design and processing for high power density are then very useful.
This winding construction is capable of providing more set of modules coil components, is convenient for motor manufacturing, to reduce manufacturing cost, reduces manufacture
Error incidence.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of single layer chain type winding embodiment according to the present invention；
Fig. 2 is that the schematic diagram of part on the steel plate is unfolded in middle line coil structures of the present invention；
The schematic diagram of Fig. 3 formation sequence of coil rolling piece to illustrate the invention (a, b, c represent different processes)；
Connection schematic diagram of the Fig. 4 between coil rolling piece of the present invention.
Fig. 5 is the structural schematic diagram of the double-deck stacked winding embodiment according to the present invention.
Wherein, 1,1A, 1B are coil rolling piece, and 2 are unfolded part for loop construction, and 3 be connector, and 4 be winding beginning side, 4A
It is winding for winding end side, 5.
Specific embodiment
The present invention is further elaborated in the following with reference to the drawings and specific embodiments.
Embodiment 1
Fig. 1 is the schematic diagram of single layer chain type winding construction according to an embodiment of the invention.The winding construction (5) can wrap
Include multiple coil rolling pieces (1) and connector (3)；Under normal circumstances, winding is three-phase windings, such as U phase, V phase and W phase.Often
Phase winding equal turn numbers, resistance is equal, and 120 ° of spatial distribution mutual deviation.It can be with when winding is more sets or multiple branch circuit, between them
It is connected using structure situation in parallel or series.
The number of phases is 3 in this embodiment, slot number 96, number of poles 16, MgO-ZrO_2 brick 2, intersects chain type using single layer
The connection type of winding.Every phase winding includes 16 coil rolling pieces (1), two effective edges of each coil rolling piece (1) across
Cross 6 slots.
According to design of electrical motor as a result, each coil rolling piece is 5 circle conducting wires, the area of every circle conducting wire is 4.8mm2, because
This can be used one with a thickness of 0.8mm, area 1m2Copper sheet (a part of steel band), carry out punching press, as shown in Fig. 2, at most
It can get 93 loop construction expansion part (2), the utilization rate of copper material can achieve 73%.Above-mentioned loop construction expansion part (2) is complete
Coil rolling piece (1) is constituted at being wound after insulation coating process.
The manufacturing process of coil rolling piece (1), specifically, as shown in figure 3, by the beginning of loop construction expansion part (2)
Side (4) is from left to right wound, and each of 9 winding positions have preferred winding radius.It eventually passes through Fig. 3 (b) and constitutes Fig. 3
(c) coil rolling piece (1) shown in, there are two coil side, each coil sides 5 circle copper strap wires, line for above-mentioned coil rolling piece (1)
The winding beginning side (4) and winding end side (4A) of enclosing rolling piece (1) are respectively two leading-out ends of this coil rolling piece, line
Ring cross-section product is identical.Use connector (3) by each phase adjacent lines 96 leading-out ends of 48 coil rolling pieces of three-phase
The beginning side leading-out end (4) and end side leading-out end (4A) for enclosing rolling piece (1,1A, 1B) are welded according to Fig. 4, are reserved 6 and are drawn
Lift one's head and lift one's head as the connection of three-phase windings, constitutes the winding (5) of lateral flat form.
In addition, two coil sides of coil rolling piece (1) are arranged in two slots with the state of upper and lower level, not only avoid
Overlapping phenomenon eliminates the technique for crossing line and wire jumper in conventional coil winding process, improves copper factor, be also double-layer coil
Manufacture provides possibility.The coil that coil of the invention can be used as cored motor is embedded into iron core slot, can also be straight
The coil as iron-core less motor is connect, particularly suitable slimming requires strong high density disc type rotating electric machine.
Embodiment 2
Fig. 5 is the schematic diagram of the double-deck stacked winding construction according to an embodiment of the invention.The winding construction may include
Multiple coil rolling pieces (1) and connector (3).Under normal circumstances, winding is three-phase windings, such as U phase, V phase and W phase.Every phase
Umber of turn is equal, and resistance is equal, and 120 ° of spatial distribution mutual deviation.It can be adopted when winding is more sets or multiple branch circuit, between them
It is connected with structure situation in parallel or series.
The number of phases is 3 in this case, slot number 96, number of poles 16, MgO-ZrO_2 brick 2, using the company of the double-deck lap winding
Connect mode.Every phase winding includes 32 coil rolling pieces (1), and two effective edges of each coil rolling piece (1) are across 6 slots.
The punching press of loop construction expansion part (2) can be carried out, using method as shown in Figure 2 with a thickness of 0.8mm, area
For the copperplate of 1 ㎡, the manufacture of coil rolling piece (1) is carried out using method as shown in Figure 3.Unlike embodiment 1, this side
Have 2 coil sides in case in each slot, three-phase windings share 96 coil rolling pieces, 192 leading-out ends using connector (3) into
Row welding, reserves 6 leading-out ends and lifts one's head as the connection of three-phase windings, constitutes the winding (5) of lateral flat form.
In addition, the outer rim form of above-mentioned coil rolling piece is sector, but the shape be also possible to round, ellipse or
Rectangle with chamfering.The invention is applicable not only to the coil in insertion iron core, is applied equally to iron-less core coil.
The above is present pre-ferred embodiments, for the ordinary skill in the art, according to the present invention
Introduction, in the case where not departing from the principle of the present invention and spirit, changes, modifications, replacement and change that embodiment is carried out
Type is still fallen within protection scope of the present invention.
Claims (7)
1. a kind of high power density disc type motor winding construction, which is characterized in that including the identical coil rolling piece of multiple structures
(1) it is embedded in iron core slot in the way of short distance or whole square, or separately as iron-core-free winding straight forming, each coil winding
Part (1) is from left to right wound by loop construction expansion part (2) gone out on one piece of copper sheet or wire cutting goes out and is constituted, the coil knot
Structure is unfolded part (2) and is laid on steel plate with the shape of similar wave, determines preferred winding radius, root according to the number of turns of winding
Preferred sectional area of wire is determined according to the area of motor inserting-coil slot, and preferred coil effective length is determined according to inside/outside diameter size.
2. a kind of high power density disc type motor winding construction according to claim 1, which is characterized in that the coil knot
Structure is unfolded part (2) and is carried out insulating layer coating film treatment in the form of planar development.
3. a kind of high power density disc type motor winding construction according to claim 1, which is characterized in that its feature exists
In the beginning side of loop construction expansion part (2) constitutes coil rolling piece after being wound a few from inside to outside along coiling direction
(1)。
4. a kind of high power density disc type motor winding construction according to claim 1, which is characterized in that the coil volume
Outer rim shape around part (1) is any shape round, in rectangle or ellipse with chamfering.
5. a kind of high power density disc type motor winding construction according to claim 1, which is characterized in that the coil volume
After being arranged by design requirement around part (1), using connector (3) by the beginning side and end of each phase adjacent windings rolling piece
Side is welded to be electrically connected, or according to actual needs that the beginning side of each phase adjacent windings rolling piece and beginning side is welded
It is electrically connected.
6. a kind of high power density disc type motor winding construction according to claim 1, which is characterized in that the coil volume
Two coil sides around part (1) are arranged in two slots with the state of upper and lower level, no overlap phenomenon.
7. a kind of winding preparation method of the high power density disc type motor winding construction as described in claim 1-6 is any,
It is characterized in that, includes the following steps: loop construction expansion part (2) beginning lateral edge coiling direction winding a few from inside to outside
It constitutes coil rolling piece (1)；Then coil rolling piece (1) whole is embedded in by short distance or away from a manner of according to the scheme of design of electrical motor
In iron core slot, for iron-core-free winding then straight forming；In this case, the coil rolling piece (1) is passed through with connector (3)
Welding is electrically connected, and according to design scheme, each mutually adjacent coil rolling piece can be begun using a coil rolling piece (1)
The winding head of end side is connect with the end side of another coil rolling piece (1A), the winding head of coil rolling piece (1) end side with
The beginning side of another coil rolling piece (1B) is connected with connector (3)；Or using coil rolling piece (1) beginning side around
Group head is connect with the beginning side of another coil rolling piece (1A), the winding head and another line of coil rolling piece (1) end side
The end side for enclosing rolling piece (1B) is connected with connector (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910173110.0A CN109888955B (en) | 2019-03-07 | 2019-03-07 | High-power-density disc type motor winding structure and winding preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910173110.0A CN109888955B (en) | 2019-03-07 | 2019-03-07 | High-power-density disc type motor winding structure and winding preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN109888955A true CN109888955A (en) | 2019-06-14 |
| CN109888955B CN109888955B (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910173110.0A Active CN109888955B (en) | 2019-03-07 | 2019-03-07 | High-power-density disc type motor winding structure and winding preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021196523A1 (en) * | 2020-04-02 | 2021-10-07 | 苏卫星 | Combined electric motor |
| CN113517795A (en) * | 2021-09-07 | 2021-10-19 | 北京精雕科技集团有限公司 | Rotating electric machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0955330A (en) * | 1995-08-14 | 1997-02-25 | Siemens Ag | Insulation method of molded wound coil |
| JP2008010743A (en) * | 2006-06-30 | 2008-01-17 | Hokkaido | Coil component, and its manufacturing method |
| JP2015173561A (en) * | 2014-03-12 | 2015-10-01 | 株式会社デンソー | Stator winding, method of manufacturing stator winding, stator, rotary electric machine, and wheel |
| JP2016052193A (en) * | 2014-08-29 | 2016-04-11 | 株式会社小松製作所 | Coil for motor, and motor |
| CN107078580A (en) * | 2014-09-18 | 2017-08-18 | 爱信艾达株式会社 | Stator |
-
2019
- 2019-03-07 CN CN201910173110.0A patent/CN109888955B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0955330A (en) * | 1995-08-14 | 1997-02-25 | Siemens Ag | Insulation method of molded wound coil |
| JP2008010743A (en) * | 2006-06-30 | 2008-01-17 | Hokkaido | Coil component, and its manufacturing method |
| JP2015173561A (en) * | 2014-03-12 | 2015-10-01 | 株式会社デンソー | Stator winding, method of manufacturing stator winding, stator, rotary electric machine, and wheel |
| JP2016052193A (en) * | 2014-08-29 | 2016-04-11 | 株式会社小松製作所 | Coil for motor, and motor |
| CN107078580A (en) * | 2014-09-18 | 2017-08-18 | 爱信艾达株式会社 | Stator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021196523A1 (en) * | 2020-04-02 | 2021-10-07 | 苏卫星 | Combined electric motor |
| CN113517795A (en) * | 2021-09-07 | 2021-10-19 | 北京精雕科技集团有限公司 | Rotating electric machine |
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| Publication number | Publication date |
|---|---|
| CN109888955B (en) | 2022-05-17 |
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