CN207573097U - A kind of motor stator slot mouth structure - Google Patents

Abstract

The utility model discloses a kind of motor stator slot mouth structures, the motor stator includes stator winding and stator core, the stator winding is made of more copper wire, multiple stator slots are set on the stator core, the copper wire is placed in the stator slot, the stator slot is rectangular configuration, the stator slot at one end stator core ecto-entad develops into structure wide outside and narrow inside, by to stator slot end stator core to develop the stator slot port larger, not only facilitate insulating paper, the insertion of copper wire, and copper wire can be avoided to be damaged in line process is turned round, it can also reduce end height simultaneously.

Description

A kind of motor stator slot mouth structure

Technical field

The utility model is related to motor stator structures, and in particular to the stator slot structure of motor stator.

Background technology

General motor stator structure is usually related to winding construction, can be divided into distributed winding and centralized wound stator knot Structure, current distributed-winding stator structure is generally integral type stator laminating structure, in advance around the winding for making respective pitches Afterwards, by manual wire embedding or by machine embedding, Distributed Winding stator structure has the characteristics that torque pulsation is small, harmonic content is low, but Winding generally by multiply and around circular copper wire coiling form, naked copper fill-in ratio is low in slot, tip lengths are also higher, is unfavorable for into one Step improves efficiency and power density；Current centralized wound stator structure includes integral type stator and is segmented piece stator, and one Body formula stator can be completed by manual wire embedding's mode；Integral type stator can also be completed using Machine automated coiling, But copper factor is very low, and for segmentation piece stator generally in a manner that then monolithic stator winding is spliced into entire stator, end is high Degree can be made smaller, but the general torque pulsation of concentrated winding stator structure is larger, harmonic content is higher, and naked copper accounts in slot Product rate is also less high, is unfavorable for further improving power density.

In order to overcome the above problem, someone uses copper wire of the rectangular copper wire as machine winding, the electricity of rectangular copper wire Machine stator technique is mainly used in the large-size machines equipment such as wind-driven generator, hydroelectric generator, generally using integrated stator Embedding technology simultaneously has been manually done, and in recent years, in order to further improve the power density of motor, has application in vehicular electric machine, adopts With rectangular copper wire make motor and a kind of hair fastener motor of Distributed Winding technique, be substantially employ segmentation wave around Group technique, hair fastener motor is also rectangular line motor, and the rectangular many industries of line motor have application, the winding construction system of hair fastener motor It is made of during making n hair fastener, it, can be significantly relative to traditional Distributed Winding motor using coiling scattering set coil The fill-in ratio of buried copper line is improved, and the height of non-solder end End winding can be significantly decreased, process engineering is generally：Point Paper, the insertion of segmentation copper wire, the torsion of opposite side copper wire, the insulation of opposite side copper wire welding, weld are inserted in the molding of section copper wire, stator core Processing.

However, larger due to turning round line torque, winding copper wire has larger extruding force with stator rabbet, causes winding copper wire Abrasion, fall paint, while can also be damaged to realizing the insulating paper of motor stator of insulation by insulating paper, it is existing at present Scheme is to enhance the abrasive resistance for turning round line end mouth by using the modes such as wearing layer are increased, although mill when turning round line can be reduced Damage, but increase wearing layer and not only increase cost, and can lead to increase the height of winding line end, it is unfavorable for the small-sized of motor Change development.

Utility model content

For solving the above problems, the utility model proposes a kind of motor stator slot mouth structure, the motor stator includes Stator winding and stator core, the stator winding are made of more copper wire, and multiple stator slots, institute are set on the stator core It states copper wire to be placed in the stator slot, the stator slot at one end stator core ecto-entad develops into structure wide outside and narrow inside, leads to Developing so that the stator slot port is larger to stator slot end stator core is crossed, not only facilitates the insertion of copper wire, and And copper wire can be avoided to be damaged in line process is turned round, fall paint, while can also reduce end height.

To achieve the above object, the technical solution of the utility model is：

A kind of motor stator slot mouth structure, the motor stator include stator winding and stator core, the stator winding It is made of more copper wire, multiple stator slots is set on the stator core, the copper wire is placed in the stator slot, the stator Slot one end ecto-entad develops into structure wide outside and narrow inside.

The stator core end that the stator slot develops end is smooth globoidal structure.

Insulation system is set between the stator slot and the copper wire, and the insulation system is applied for insulating paper or insulating materials It applies, wherein, the stator slot interior insulation paper is " B " type structure or " S " type structure.

Setting at least four copper wire in each stator slot, the copper wire end are square structure.

Compared to existing hair fastener motor stator structure, the utility model has remarkable advantage and advantageous effect, is embodied as：

1. using the motor stator slot mouth structure of the utility model, stator rabbet is expanded by developing, copper wire is facilitated to insert Line；

2. using the motor stator slot mouth structure of the utility model, stator rabbet is developed as smooth globoidal structure, energy Enough avoid turning round the extrusion abrasion of copper wire, insulating paper and notch in line process；

3. using the motor stator slot mouth structure of the utility model, stator rabbet is developed as smooth globoidal structure, Copper wire after turning round line is enabled to closer to stator core, to reduce end height.

Description of the drawings

Fig. 1 is the structure diagram of the utility model motor stator；

Fig. 2 is the utility model motor stator partial enlargement structural representation；

Fig. 3 is the axial section structure diagram of the utility model motor stator slot.

Specific embodiment

The specific implementation method of the utility model is as follows：

Existing rectangular copper wire motor is developed by hair fastener motor, thus existing rectangular copper wire motor is mostly a kind of The motor of Distributed Winding technique, is substantially to employ segmentation wave winding technique, dissipates embedding using coiling relative to traditional The Distributed Winding motor of circle, can significantly increase the fill-in ratio of buried copper line, and can significantly decrease non-solder end end around The height of group, process engineering are generally：Paper is inserted in the molding of segmentation copper wire, stator core, segmentation copper wire is inserted into, opposite side copper wire is turned round Turn, opposite side copper wire welding, weld insulation processing, however, larger due to turning round line torque, winding copper wire has with stator rabbet Larger extruding force causes the abrasion of winding copper wire, falls paint, while also can be to realizing the motor stator to insulate by insulating paper Insulating paper damages, and current existing scheme is to enhance the wear-resisting energy for turning round line end mouth by using the modes such as wearing layer are increased Power although abrasion when turning round line can be reduced, increases wearing layer and not only increases cost, and can cause to increase winding wire The height at end is unfavorable for the miniaturization of motor.

In view of the above-mentioned problems, the utility model proposes a kind of motor stator slot mouth structure, the motor stator includes stator Winding and stator core, the stator winding are made of more copper wire, and multiple stator slots, the copper are set on the stator core Line is placed in the stator slot, the stator slot be rectangular configuration or trapezium structure, the stator slot at one end stator core Ecto-entad develops into structure wide outside and narrow inside, by developing the stator slot end to stator slot end stator core Mouth is larger, not only facilitates the insertion of copper wire, but also copper wire can be avoided to be damaged in line process is turned round, fall paint, while can also drop End portion height

The concrete structure of the utility model motor stator notch is illustrated below in conjunction with the accompanying drawings：

Fig. 1 is the structure diagram of the utility model motor stator, and the utility model provides a kind of motor stator notch Structure, the motor stator include stator winding and stator core 1, and the stator winding is made of more copper wire, the stator Multiple stator slots 2 are set on iron core 1, and the copper wire is placed in the stator slot 2, and the stator slot 2 is rectangular configuration or trapezoidal Structure, the stator core 1 can be integral type lamination structure, or segmented splicing construction.

Fig. 2 is the utility model motor stator partial enlargement structural representation, and 2 one end ecto-entad of stator slot develops Into structure wide outside and narrow inside, 1 end of stator core that the stator slot 2 develops end is smooth globoidal structure, that is, realizes the copper wire It is larger with the contact area of 1 end of stator core in line process is turned round, single point pressure is reduced, prevents the copper wire because squeezing Paint is fallen in damage, and the copper wire can also be caused more close to 1 end of stator core, to reduce the copper wire end height.

Axial section structure diagrams of the Fig. 3 for the utility model motor stator slot, the stator of the end of the stator slot 2 Iron core 1 is developed by punch 3, and the punch 3 is connect with developing equipment automatically, and rushing for the stator rabbet is realized in automation Expand technique, high in machining efficiency and consistency is good.

Insulation system is set between the stator slot 2 and the copper wire, and the insulation system is insulating paper or insulating materials Coating, wherein, for using the insulation system of insulating paper, the 2 interior insulation paper of stator slot is " B " type structure or " S " type structure, And setting at least four copper wire in each stator slot 2, the copper wire end are square structure.

For the exemplary embodiment for the utility model, it should be understood that be the guarantor of claims of the utility model A certain kind demonstrative example therein in the range of shield, has the directiveness that those skilled in the art are realized with corresponding technical solution Effect rather than the restriction to the utility model.

Claims (5)

1. a kind of motor stator slot mouth structure, which is characterized in that the motor stator includes stator winding and stator core, described Stator winding is made of more copper wire, and multiple stator slots are set on the stator core, and the copper wire is placed in the stator slot, Described stator slot one end ecto-entad develops into structure wide outside and narrow inside.

2. motor stator slot mouth structure according to claim 1, which is characterized in that the stator slot develops the stator iron at end Core end is smooth globoidal structure.

3. motor stator slot mouth structure according to claim 2, which is characterized in that between the stator slot and the copper wire Insulation system is set.

4. motor stator slot mouth structure according to claim 1, which is characterized in that set at least in each stator slot Four copper wire.

5. motor stator slot mouth structure according to claim 4, which is characterized in that the copper wire end is square structure.