CN202364019U

CN202364019U - Stator coil of motor

Info

Publication number: CN202364019U
Application number: CN2011205146459U
Authority: CN
Inventors: 郑明得
Original assignee: PREJECTION INDUSTRIAL CORP
Current assignee: PREJECTION INDUSTRIAL CORP; PREJECTION IND CORP
Priority date: 2011-12-12
Filing date: 2011-12-12
Publication date: 2012-08-01
Anticipated expiration: 2021-12-12

Abstract

The utility model relates to a stator coil of a motor, which is mainly characterized in that a stator substrate is fixedly arranged on a wheel shaft of the motor while an outward-rotating type wheel group rotor disk rotates correspondingly to a stator; cores made of silicon steel plates are correspondingly arranged on the stator substrate in a ring way; and more than two layers of flat coils are arranged outside each core in a winding way, and two adjacent coils are arranged in opposite directions in the winding way, so that the stator coil has the effect of a compact magnetic field, and also has an effect that high torque of the motor can be achieved.

Description

The stator coil of motor

Technical field

The utility model relates to a kind of stator coil of motor, refers in particular to the stator coil configuration on the big motor of a kind of torsion that applies to start to walk, and uses letting coil produce the high density magnetic line of force, attacks to imitate to primary utility model and uses and let motor have high torsion.

Background technology

Motor is applied to various products as main power source by a large amount of, particularly applies to rotating speed or the higher device of torsion demand, as: compressor, air conditioner, fruit juice mixer or electric carrier (like electric motor car, the car of riding instead of walk) etc.And the start principle of motor mainly utilizes electric energy that the stator that is coated with coil is generated an electromagnetic field, and makes the magnetic field interphase interaction again, has the rotor rotation of magnetic with promotion, and then converts electrical energy into mechanical energy.

And with electric motor car, be universally acknowledged for having the vehicles of environmental protection and source benefit this century concurrently, the running power resources of electric motor car are to be the electric-powered system that core is formed with the motor; Since its source is a motor; For the handling of electric motor car, acceleration performance, grade climbing performance, extremely speed and endurance etc. are influenced by motor performance all, and the motor suitable speed reducing ratio that sees through drive system is converted into required torsion and the power of real vehicle running usually, and the motor that is most commonly used to electric motor car has brush direct current motor, dc brushless motor and AC induction motor; Its each tool pluses and minuses; Yet the space of general motor vehicle is limited, if can improve motor and the power density and the torsion density of driving the control system; Then configuration increases very big elasticity to car load, also can increase rider's usage space.

And electric motor car all uses the electric machine structure of hub-type recently, the mechanism design of its wheel hub motor, and form has a variety of, and electric machine structure haply is for being provided with a stator fixed disk; And in the stator fixed disk periphery plural circle hole that is shaped, circle be the coil of circle around the cross section on the circle wall of separating the circle hole again, according to this; To form the stator of motor, be provided with ring in the stator fixed disk outside again in addition, and make this ring inwall group be provided with magnetic; With rotor as motor, by this, when implementing to use; Be with the logical electric current that gives of coil, with generation magnetic field, and the magnetic that ring inwall group is established; After the effect that receives coil generation magnetic field, promptly begin to rotate, carry out start to drive the driven member that is connected with group with ring.So, this prior motor structure in the circle of its coil around last, must coil be passed narrow circle hole after, walk around the circle wall again; Continue it, again coil is penetrated adjacent circle hole, so, wear circle repeatedly around the winding that can on a circle wall, accomplish coil; And on performing, desire with coil in narrow circle hole centre circle around very time-consuming inconvenience, do not meet production efficiency, and this kind cross section is circular coil configuration mode; Can occupy bigger space, and weight is also quite heavy, in addition; Its magnetic density that can produce is lower, under the slow-speed of revolution, can't produce high torsion, so it is also relatively poor to drive effect.

Summary of the invention

The main purpose of the stator coil of the motor of the utility model is to improve the not enough disappearance of motor torsion, using letting coil produce the highdensity magnetic line of force and magnetic flux, is purpose to let motor have the big usefulness of starting torsion.

The purpose of the stator coil of the utility model motor and effect are to be realized by following technology:

Mainly the wheel shaft in motor is fixed with stator substrate; And corresponding stator rotation is the wheels rotor disk of outward rotation type; Its corresponding ring on this stator substrate is established and is arranged with the stamen heart that is constituted with silicon steel sheet; Be arranged with the coil of the flat more than two-layer at least in each stamen heart outside, and let two adjacent coils be opposite winding direction; By this, let this stator coil have the closely effect of (density of line of magnetic force is high more, and magnetic field is strong more) of magnetic field, make it can let motor reach usefulness with high torsion.

The stator coil of the utility model motor further can constitute a coil groups by two-layer flatwise coil; And two flatwise coils are opposite winding direction; And also can at least one coil groups in the outside winding of the stamen heart, and the winding direction of two adjacent pairing flatwise coils of coil groups also be opposite setting; So, let this stator coil have the closely effect of (density of line of magnetic force is high more, and magnetic field is strong more) of magnetic field, make it can let motor reach usefulness with high torsion.

Description of drawings

Fig. 1 is the front elevational schematic of the utility model;

Fig. 2 is the flatwise coil three-dimensional appearance sketch map of the utility model;

Fig. 3 is the schematic side view of the utility model;

Fig. 4 is the magnetic line of force flow schematic diagram of the utility model;

Fig. 5 is another view of the utility model.

Drawing reference numeral:

< the utility model >

(1) wheel shaft (11) stator

(111) stator substrate (112) the stamen heart

(113) flatwise coil (12) rotor disk

(A) coil groups

Embodiment

At first; See also Fig. 1 to shown in Figure 3; For the solid of the stator coil of the utility model motor is decomposed, cross-sectional schematic, it is mainly the stator coil on the big motor of the torsion that applies to start to walk, and mainly the wheel shaft 1 in motor is fixed with stator 11; And corresponding stator 11 rotates is the wheels rotor disk 12 of outward rotation type, and its this stator 11 includes:

One stator substrate 111;

A plurality of stamen hearts 112 are made up of silicon steel sheet, and corresponding ring is established and is arranged on stator substrate 111 end faces;

Be set around the flatwise coil 113 of each the stamen heart 112 outside, its correspondence is arranged with two-layer at least above flatwise coil 113 on the stamen heart 112, and lets two adjacent flatwise coils 113 be opposite winding direction.

By this, let these stator 11 coils have the closely effect of (density of line of magnetic force is high more, and magnetic field is strong more) of magnetic field, make it can let motor can reach usefulness with high torsion.

Please consult Fig. 1 in the lump to shown in Figure 3; For the solid of the stator coil of the utility model motor is decomposed, analysed and observe, combination and local enlarged diagram, its utility model can apply to electric motor car or any facility that need power, when assembling is used; Be fixed with the stator 11 that does not rotate on the wheel shaft 1 of this motor; And corresponding stator 11 rotates is the wheels rotor disk 12 of outward rotation type, continues, and is provided with a stator substrate 111 in this stator 11; Ring is established and is arranged with a plurality of stamen hearts 112 that constituted with silicon steel sheet on stator substrate 111; And be arranged with loop construction on each the stamen heart 112 outside, and this loop construction is for being arranged with the flatwise coil 113 more than two-layer at least in each the stamen heart 112 outside, and let two adjacent flatwise coils 113 be opposite winding direction; Further the winding of this stator coil is as shown in Figure 5; Can constitute a coil groups A by two-layer flatwise coil 113; And two flatwise coils 113 are opposite winding direction; And also can at least one coil groups A in the 112 outside windings of the stamen heart, and the winding direction of two adjacent pairing flatwise coils 113 of coil groups A also be opposite setting.

See also shown in Figure 4ly, when conducting electric power, it can let these stator 11 coil respective rotor dishes 12 generation magnetic fields; And because of the winding direction of the flatwise coil 113 of the utility model is opposite setting, with form N, S is corresponding around arrangement, thus; The magnetic line of force except every layer line circle generation; Also by the stacking mutually of N, S utmost point phase, so that produce higher magnetic density, add and use the magnetic field that flatwise coil produced to have more tightness; Be the density height that the magnetic line of force distributes, the relative magnetic field that produces is strong more.

It more than is the service firing state of the utility model; Continue, explain again how the utility model motor reaches magnetic field closely and have high torsion usefulness, at first; What can know is electric efficiency=output/input=output/output+loss; The kw number that indicates on the motor nameplate (or horsepower number) is meant motor output, and this power output can not change.Will improve electric efficiency relatively, have only and reduce loss, and generally speaking its loss be divided into five big types, promptly copper loss, iron loss, secondary copper loss, a machinery undermine spuious damage; And copper loss is meant and the flow through loss of stator coil of electric current as long as electric current flows through the object that resistance is arranged, just has I ²The loss of * R; Wherein I representes electric current, and R is a resistance, in order to produce rotating magnetic field, is wound with coil on the electric machine stator iron, has coil that resistance will be arranged.Can reduce a copper loss through following method, be about to the line footpath overstriking of coiled wire-wound coil, (λ/A), because of sectional area A becomes big, resistance R diminishes resistance R=ρ, I ²* R reduces naturally.

Then; This inductance value=(coil number * magnetic flux)/electric current, at identical silicon steel sheet and import under the identical direct current, the inductance of circle line coil gained: the numerical value of 42uH, D.C. resistance DCR:46.6m Ω; And the numerical value of the inductance of flatwise coil: 41uH, D.C. resistance DCR:27.3m Ω; It is little because of circle line enamelled wire sectional area, therefore needs the winding number of turns many, produces higher value of inductance; According to cross-sectional area (A)=permeability (the μ) * magnetic field intensity (H) of magnetic density (B)=magnetic flux (Φ)/vertical magnetic line of force, learn that magnetic flux all is directly proportional with magnetic density, magnetic field intensity, and the utility model is to increase sectional area A with the double-deck winding mode of flatwise coil; Under the state of input same current; Measured data are inductance: 2.24uH, impedance DCR:7.5m Ω, and add the inductance of silicon steel sheet gained with the double-deck coiling of flatwise coil: 9.0uH, impedance DCR:7.5m Ω, but no matter its resistance value of number of turns number of winding is identical for the flatwise coil of knowledge capital utility model; With respect to circle line enamelled wire is to reduce resistance value; And the utility model makes its inductance value lower with the double-deck coiling of flatwise coil, and the current flux quantitative change is big relatively, so; Can let motor when starting (step), have the usefulness of high torsion.

Know that through above-mentioned the composition of the utility model explains that with using enforcement we can know the stator coil structure of motor, have following several advantages compared to general existing motor, as follows:

1. the stator coil of the utility model motor; Mainly can improve the not disappearance of the high torsion of tool of conventional motors; Through utilizing the flatwise coil and the number of plies and reverse design each other, can let this stator coil have the closely effect of (density of line of magnetic force is high more, and magnetic field is strong more) of magnetic field.

The stator coil of the utility model motor with above-mentioned, through utilizing the flatwise coil and the number of plies and reverse design each other, makes it can let motor reach the usefulness with high torsion.

Claims

1. the stator coil of a motor; It is characterized in that, be fixed with stator in the wheel shaft of motor, is the wheels rotor disk of outward rotation type and corresponding stator rotates; Said stator pack contains a stator substrate; Be arranged with several stamen hearts and on stator substrate, encircle to establish, and each stamen is arranged with stator coil in the heart, wherein:

Be arranged with the flatwise coil more than two-layer at least in each stamen heart outside, and two adjacent flatwise coils are opposite winding direction.

2. the stator coil of motor as claimed in claim 1 is characterized in that, said flatwise coil is with the even level setting.

3. the stator coil of motor as claimed in claim 1 is characterized in that, the said stamen heart is made up of silicon steel sheet.

4. the stator coil of motor as claimed in claim 2 is characterized in that, the said stamen heart is made up of silicon steel sheet.

5. the stator coil of a motor; It is characterized in that, be fixed with stator in the wheel shaft of motor, is the wheels rotor disk of outward rotation type and corresponding stator rotates; Said stator pack contains a stator substrate; Be arranged with several stamen hearts and on stator substrate, encircle to establish, and each stamen is arranged with stator coil in the heart, wherein:

Be arranged with at least one group of coil groups in each stamen heart outside, and said coil groups is constituted by being opposite flatwise coil by two winding directions, and its winding direction of flatwise coil of two adjacent coil groups also is opposite.

6. the stator coil of motor as claimed in claim 5 is characterized in that, the said stamen heart is made up of silicon steel sheet.