CN207368780U - A kind of machine winding - Google Patents

Abstract

A kind of phase winding number of welds of the utility model offer is few, the lower machine winding of q＆r higher, cost.The machine winding, including three-phase windings, each phase winding are the conductor or several connected conductors to pass through wire casing.

Description

A kind of machine winding

Technical field

Machine winding is the utility model is related to, is a kind of stator winding and its winding method specifically.

Background technology

In current technical field of motors, due to forming the round conductor of winding when mutually arranged, exist between cylindrical Larger gap, compared to round conductor, flat conductor accounts for the space smaller of stator, so, by flat conductor form around Group（Hereinafter referred to as flat wire winding）, progressively substituting the winding being made of round conductor（Hereinafter referred to as round wires winding）, become and work as The developing direction of modern motor field.

But since the bend resistance intensity of flat wire is far above the buckling strength for the conductor bundle being made of multiply round conductor, No image of Buddha round wires winding is easily coiled into the shape of needs like that, and cannot be as round wires winding, then first coiling is molded again Line is put into groove by iron core channel opening.Therefore, the production difficulty of flat wire winding is much larger than round wires winding.Lower line process is complicated （Process coil being put into stator）, it is unfavorable for realizing automation.

Technology in terms of existing more advanced flat wire winding, is the shape made flat wire in advance similar to hair fastener, then, Hair fastener line is inserted into iron core slot from the side of iron core, then hair fastener type conductor ends are bent to both ends, finally will be all adjacent Endpoint weld, form coil and flat wire winding one by one.The method technique is extremely complex, and since there is substantial amounts of Solder joint, product quality are difficult to control, and production cost is high, difficulty is big.Other prior arts, are mainly in advance pressed into conductor Type, it is complicated by the way that into more valve structures, stator design is combined into stator, and more valve stators are unfavorable for the uniform of magnetic field Distribution and magnetic field conduction.

Utility model content

The purpose of this utility model is to provide that a kind of phase winding number of welds is few, and q＆r higher, cost are lower Machine winding.

The machine winding of the utility model, including three-phase windings, each phase winding are a conductors to pass through wire casing Or several connected conductors.

Above-mentioned machine winding, the conductor are flat.

Above-mentioned machine winding, winding are Double Layer Winding, and a conductor superposition is respectively adopted in upper strata winding and lower floor's winding Together, form upper strata winding with the first and last end of two conductors of lower floor winding to be connected, remaining head end and end are as winding Extraction electrode, or upper strata winding and lower floor's winding parallel, winding both ends are as extraction electrode.

The beneficial effects of the utility model：A phase winding is formed with several conductors being connected using one, is significantly reduced Coil number of welds, it might even be possible to eliminate coil solder joint, reduce quality weak spot, reliability higher is a large amount of due to being not required Welding, therefore production efficiency is high, and cost is lower.

The utility model also provides a kind of simple process at the same time, and production efficiency is high, and cost is lower, can adapt to automatic metaplasia The machine winding winding method of production, manufactured machine winding number of welds is few in this way, reduces quality weak spot, reliability Higher, due to need not largely weld, production efficiency is high, and cost is lower.

The winding method of machine winding described in the utility model, using a conductor, repeats procedure below until with one Root conductor completes the coiling of the whole or part of a phase winding；When conductor completes the local coiling of winding, by part around The exit of group is interconnected to form a phase winding；The repetitive process is：Conductor free end is inserted into from the head end of a wire casing Wire casing and after wire casing tail end extraction, conductor back bending, is inserted into conductor free end from another wire casing tail end and another from this Wire casing head end is drawn, then conductor back bending.

The insertion wire casing can be that conductor is pushed or/and pulled.Any one of conductor can by mobile end, with Lower abbreviation free end.

Above-mentioned winding method, the free end of the conductor after back bending insertion wire casing during, to out of wire casing The conductor exit of extraction is bent, and makes coiling smooth.When the wire casing is inserted into conductor free end from a wire casing head end, it is The conductor exit of head end extraction from another wire casing is bent；Should when conductor free end is inserted into from a wire casing tail end It is that the conductor exit of the tail end extraction from another wire casing is bent during wire casing.

Above-mentioned winding method, the free end of the conductor after back bending insertion wire casing during, to out of wire casing The conductor exit of extraction is successively repeatedly bent, after inflection point once than previous inflection point closer to wire casing end Portion.

Above-mentioned winding method, the free end of the conductor after back bending insertion wire casing during, to out of wire casing The conductor exit of extraction is carried out at the same time multiple spot bending.

Above-mentioned winding method, during wire casing is inserted into the free end of the conductor after back bending, bends conductor, To avoid the conductor that coiling is completed.

Above-mentioned winding method, when being bent to conductor, be to conductor be provided with the radial direction of the iron core of wire casing or/ Bent with tangential direction.

Above-mentioned winding method, during winding double-layer winding, a conductor superposition is respectively adopted in upper strata winding and lower floor's winding Together, thread at the same time, after the completion of bending coiling at the same time or separately, two conductors for forming upper strata winding and lower floor's winding First and last end is connected, the extraction electrode of remaining head end and end as winding, or upper strata winding and lower floor's winding parallel, around Group both ends are as extraction electrode.

Above-mentioned winding method, head end, end the conductor of formation three-phase windings carry out triangle or star-like connection.

By threading and bent using long conductor, form the coil of motor, and then form winding, significantly reduce coil Number of welds, it might even be possible to eliminate coil solder joint, reduce quality weak spot, reliability higher, due to need not largely weld Connect, therefore production efficiency is high, cost is lower.The winding method could be used that at the same time carries out automated production using robot, into One step improves efficiency.Every conductor can be sub-thread or multiply.This method can carry out coiling to Single-layer Windings, Coiling can be carried out to Double Layer Winding, it is adaptable.

Brief description of the drawings

Fig. 1 is iron core schematic diagram（The direction instruction figure of winding process is described）；

Fig. 2-Fig. 7 is from A to the circle coil-winding process schematic diagram seen.

Fig. 3-Figure 12 is from B to the circle coil-winding process schematic diagram seen.

Figure 13 is the expanded view of coil-winding process.

Embodiment

Referring to the winding process of the circle coil shown in Fig. 2-7, using the method for threading coiling, long conductor 100 is used Wire casing 22 on through stator 110, then later forms a U-shaped 106, conductor free end 108 from wire casing by end conductor again The other wire casing 16 of insertion of 16 head ends（Referring to Fig. 2）, traction conductor passes through wire casing 16, when the U-shaped portion position of conductor is close to iron core line During groove, while conductor is drawn, the first inflection point 101 on the conductor exit 109 drawn out of wire casing 22 carries out the Once bend（Referring to Fig. 3）, then draw conductor be gradually inserted wire casing 16, the second inflection point 102 on conductor exit into Second of bending of row（Referring to Fig. 4）, then conductor is inserted into wire casing 16, the 3rd inflection point 103 on conductor exit carries out the Bend three times（Referring to Fig. 5）, 102 to the first inflection point 101 of the second inflection point is compared close to 22 head end of wire casing, the 3rd inflection point 103 Second inflection point 102 is close to 22 head end of wire casing.In bending, progress at the inflection point of bending folder clamping conductor can be used curved Folding, on the one hand can play the role of clamping conductor, when on the other hand can prevent traction conductor, prevent the exit of conductor from moving It is dynamic.

What the bending of conductor was substantially completed at the same time with traction, that is to say, that with while traction to conductor or successively The movement of conductor is followed to be bent, principle is to make coiling smooth as much as possible, makes the invalid bending amount of line minimum.It is preferred that Bending successively.

It is of course also possible to two or three inflection points are bent at the same time.

The bending, either " V " type being made of described by this example three inflection points is curved or circular The U-typed of bottom is curved or any has two angles more than the effective edge of 90 degree of conductor（Conductor in wire casing Part）The geometry of composition, these belong to the described category of this method, and the shape of transition position is unlimited.

With the traction and bending to conductor, end conductor（Close to the position of iron core end face）Form arc-shaped transition 105（Ginseng See Fig. 6,7）.It can also be the moving along wire casing of the conductor as caused by bending to draw conductor, or leading for formation is pushed into wire casing Body moves, or the conductor movement that drawing conductor is formed.

As illustrated in figs. 8-12, in threading process, since there may be located at target groove around the conductor 107 made before Above iron core end face, for this, it may be necessary to by just coiling conductor 100 to away from around the direction of the conductor 107 made Curved conductor forms one or more bending sections 104, with the conductor 107 that coiling is completed before avoiding.Away from coiling The direction of good conductor, refers to the radial direction or tangential direction or at the same time in any energy such as radial direction and tangential direction of iron core Enough avoid around the direction made.

The utility model by threading and bending and bending, forms the coil of motor using long conductor, so form around Group, significantly reduces coil number of welds, it might even be possible to and coil solder joint is eliminated, reduces quality weak spot, reliability higher, by In need not largely weld, therefore production efficiency is high, and cost is lower.During winding double-layer winding, while folded using two conductors Coiling together, after the completion of coiling, can be connected the both ends of the double-layer conductor of formation three-phase windings with head, formed it is in parallel around Group, can also be from beginning to end, forms series connection winding, connects three-phase windings according to star or triangle afterwards, forms machine winding.

By taking 48 groove motor stators as an example, the coiling expanded view of coil arrangement scheme shown in Figure 13（Dotted line table in figure Show lower floor, solid line represents upper strata）, coiling is threaded at the same time using two conductors forms winding.In the same way, three groups of coiling, Form the stator winding of three phase electric machine.

Winding method main points：Using two flat wires 130,140（Every flat wire can be sub-thread or multiply）.

10 (on) represent wire casing 10 upper strata, 4 (under) represent wire casing 4 lower floor, other implications are similar, and form is：Line Groove number (level number).Specific winding process：

1st, flat wire 130 from 8 (on) enter line, flat wire 140 from 13 (on) enter line, extend to both sides.

2nd, 8 (on)->1 (under)->44 (on)->37 (under)->32 (on)->25 (under)->20 (on)->13 (under)->7 (on)->48 (under)->43 (on)->36 (under)->31 (on)->24 (under)->19 (on)->12 (under)->Outlet

3rd, 13 (on)->6 (under)->1 (on)->42 (under)->37 (on)->30 (under)->25 (on)->18 (under)->14 (on)->7 (under)->2 (on)->43 (under)->38 (on)->31 (under)->26 (on)->19 (under)->Outlet

Conductor passes repeatedly through wire casing, and threading bends and bend when closing to an end in advance every time, referring specifically to Fig. 2-12 and upper Described in text.After the completion of two flat wire coilings, and from 8 (on) enter the flat wire 130 of line with from 13 (on) enter 140 phase of flat wire of line Even.

If using a conductor（Flat wire 130 is regarded as be connected one with flat wire 140）, enter when from No. 19 wire casings Line, from during No. 12 wire casing outlets, its winding process is：

19 (under)->26 (on)->31 (under)->38 (on)->43 (under)->2 (on)->7 (under)->14 (on)->18 (under)- >25 (on)->30 (under)->37 (on)->42 (under)->1 (on)->6 (under)->13 (on)->8 (on)->1 (under)->44 (on)-> 37 (under)->32 (on)->25 (under)->20 (on)->13 (under)->7 (on)->48 (under)->43 (on)->36 (under)->31 (on)->24 (under)->19 (on)->12 (under)->Outlet.

If using a conductor（Flat wire 130 is regarded as be connected one with flat wire 140）When entering line from No. 12 wire casings, From during No. 19 wire casing outlets, its winding process is：

12 (under)->19 (on)->24 (under)->31 (on)->36 (under)->43 (on)->48 (under)->7 (on)->13 (under)->20 (on)->25 (under)->32 (on)->37 (under)->44 (on)->1 (under)->8 (on)->13 (on)->6 (under)->1 (on)->42 (under)->37 (on)->30 (under)->25 (on)->18 (under)->14 (on)->7 (under)->2 (on)->43 (under)-> 38 (on)->31 (under)->26 (on)->19 (under)->Outlet.

This method makes it possible that multilayer winding formula flat wire winding, rather than use weld winding, both have identical Electric property, but craftsmanship, the better reliability of the Wound-rotor type winding of the utility model, production cost is lower, and reliability is excellent In welding winding.

After the completion of three-phase windings coiling, the tail end of each phase winding is connected as needed, forms Y-shaped or triangle connects Connect.Interconnection technique between winding belongs to routine techniques, is not described in detail herein.

Claims (3)

1. a kind of machine winding, including three-phase windings, it is characterized in that：Each phase winding be to pass through wire casing a conductor or Several connected conductors.

2. machine winding as claimed in claim 1, it is characterized in that：The conductor is flat.

3. machine winding as claimed in claim 1, it is characterized in that：Winding is Double Layer Winding, and upper strata winding and lower floor are around component Not Cai Yong a conductor be superimposed, the first and last end for forming upper strata winding with two conductors of lower floor winding is connected, remaining The extraction electrode of head end and end as winding, or upper strata winding and lower floor's winding parallel, winding both ends are electric as drawing Pole.