CN208299655U - Double air gaps motor - Google Patents

Abstract

The utility model relates to a kind of double air gaps motor.Double air gaps motor includes shell and is mounted on the intracorporal stator of shell, rotor, stator includes the first stator and the second stator, rotor makes to form double air gaps between rotor and the first, second stator between the first, second stator, first stator and the second stator include stator core and stator winding, rotor includes rotor core and rotor windings, second stator winding is identical as the number of turns of every phase winding of the first stator winding, phase is identical, pitch is identical, and the second stator is consistent with the direction for the axis of magnet that the first stator winding generates on rotor magnetic loop.The double air gaps motor of the utility model using double air gaps structure and rotor conductor current direction in a pair of magnetic field it is identical.The magnetic field that electrical conductor in a pair of magnetic field generates can act on a pair of of magnetic pole simultaneously.For double air gaps motor compared with existing motor in volume, the identical situation of electric parameter, efficiency and power are higher, more energy saving.

Description

Double air gaps motor

Technical field

The utility model relates to a kind of double air gaps motor.

Background technique

With the rapid development of economy, power-equipment has become essential material base in for people's lives.Motor It is common power-equipment, is usually made of rotor and stator, is to be worked using electromagnetic field drive rotor and pass through output shaft Output power.Unilateral air gap is mostly used to be arranged between the stator of existing motor, rotor greatly, the work of the motor of unilateral air gap Principle as shown in Figure 1, pole flux from the pole N → air gap → rotor core tooth socket → rotor core magnetic yoke → rotor core tooth socket → Air gap → the pole S → magnetic pole magnetic yoke → pole N.The current direction in the rotor conductor circuit in each pair of N, S pole field circuit is two (one Positive one is negative), which results in the conductors of a current direction can only act on single magnetic pole, and cannot act on a pair of of magnetic simultaneously The motor of pole, this unilateral air gap setting cannot effectively play whole magnetic energy of rotor conductor.And double air gaps motor rotor Winding with single air gap rotor windings when parameters are identical, in the case where identical frequency voltage and current, double air gaps motor The electromotive force that rotor windings generate is identical as the electromotive force of single air gap motor rotor windings, this is allowed in identical electrical power In the case of double air gaps output power of motor be greater than single air gap motor output power.

Utility model content

The purpose of this utility model is to provide a kind of double air gaps motor, it is intended to solve existing single air gap motor because depositing In the problem that magnetic yoke flux circuit causes power consumption big.

To achieve the above object, the technical solution of the double air gaps motor of the utility model is:

A kind of double air gaps motor includes shell and is mounted on the intracorporal stator of shell, rotor, and the stator includes first Stator and the second stator, rotor make to form double gas between rotor and the first, second stator between the first, second stator Gap, first stator and the second stator include stator core and stator winding, rotor include rotor core and rotor around Group, the second stator winding is identical as the number of turns of every phase winding of the first stator winding, phase is identical, pitch is identical, and second is fixed Son is consistent with the direction for the axis of magnet that the winding of the first stator generates on rotor magnetic loop.

The beneficial effects of the utility model are: referring to Fig. 2, the working principle of the double air gaps motor of the utility model are as follows: Rotor core two sides form double air gaps circuit, and (magnetic flux is from the pole N → air gap → rotor core → air gap → pole S → magnetic pole magnetic yoke → N Pole → air gap → rotor core → air gap → pole S → magnetic pole magnetic yoke → pole N) and rotor core without magnetic yoke flux circuit, in a pair Whole conductor currents direction is identical in magnetic pole and magnetic field, and the magnetic field energy that conductor current generates acts on a pair of of magnetic pole simultaneously.It is this double Air gap motor is compared with existing motor in volume, the identical situation of electric parameter, and efficiency and power are higher, more supernumerary segment Energy.

The specific structure of rotor core is further limited, rotor core can have two kinds of forms, the first form: institute Rotor core is stated as two-sided dentalation, tooth socket, rotor windings point are equipped on rotor core inside and outside circle or on both sides of the face It is not embedded in inside and outside circle or two sides tooth socket.Rotor core is bidentate structure, and winding is arranged on rotor core bidentate, helps In the efficiency for improving motor.

Further, the rotor windings are multiphase distribution winding.Help to improve electric efficiency.

Further, the rotor core silicon steel sheet is fixed in support plate by least three or more locating shaft, by The insulation sleeve of engineering plastics production is fixed between rotor core and locating shaft.

Second of form are as follows: the rotor core is monodentate structure, and rotor windings are wrapped on tooth socket.Rotor core is single Tooth is easy to process.

Further, the rotor windings are centralized winding.Centralized winding construction is simple, and processing cost is low.

Also a variety of improvement can be carried out for above-mentioned multiple technologies scheme:

The first is improved: the first stator, the second stator and rotor coaxial setting, shell radially, rotor is located at the Between two stators and the first stator.

Two kinds of fixed forms can be used to the first, second stator and rotor, it is one of are as follows: to be equipped in the shell Fixing axle, second stator are fixed in fixing axle, and the both ends of rotor pass through supporting element and fixing axle rolling assembling, supporting element One end stretch out shell constitute output shaft.Setting fixing axle helps to enhance the fixing intensity of stator in shell.

It is another are as follows: output shaft is rotatably equipped in the shell, the rotor is fixedly connected on output shaft, and described the Two stators are immobilized in the shell with the first stator.Facilitate to keep housing interior structure more compact using the form.

When using second of fixed form, the lead of rotor polyphase windings is connect by slip ring with input power cord.

When rotor core is monodentate structure, the silicon steel sheet for building up rotor core is spliced by least four I-shaped silicon steel sheets It forms, the groove of two neighboring I-shaped silicon steel sheet docks to form tooth socket.Rotor windings are arranged by multiple I-shaped silicon steel sheets In the tooth socket being combined into, facilitate the fixing intensity for enhancing rotor windings.

Second of improvement: double air gaps motor is asynchronous motor, and the second stator is respectively and fixedly installed to the first stator In shell, the second stator winding is connected in parallel with the first stator winding or the windings in series of same phase is connect.

The structure type of rotor windings and stator winding can be two kinds, one of are as follows: the rotor windings are mouse cage Winding, the second stator winding and the first stator winding are multiphase distribution winding.

It is another are as follows: the rotor windings are multiphase distribution winding, and the second stator winding is with the first stator winding Mouse cage winding.

The third is improved: output shaft is rotatably equipped in the shell, the first, second stator and rotor are axial disk Structure, the first, second stator and rotor coaxial setting, in shell axial direction, rotor between the first, second stator, first, Second stator is fixedly connected with the casing, and rotor is fixedly connected with output shaft.

The setting form of first, second stator and rotor is further limited, the first, second stator is arranged in groups and is Multiple groups have a rotor between two adjacent groups.

When the first, second stator is multiple groups, the first, second stator is fixed on shell by T shape support ring.

Detailed description of the invention

Fig. 1 is the working principle diagram of single air gap motor in the prior art；

Fig. 2 is the working principle diagram of the double air gaps motor of the utility model；

Fig. 3 is the structural schematic diagram of the embodiment one of the double air gaps motor of the utility model；

Fig. 4 be Fig. 3 in stator, rotor structural schematic diagram；

Fig. 5 is the state diagram when rotor in Fig. 2 is fixed；

Fig. 6 is the structural schematic diagram of the embodiment two of the double air gaps motor of the utility model；

Fig. 7 is the structural schematic diagram of the embodiment three of the double air gaps motor of the utility model；

Fig. 8 is the sectional view along A-A in Fig. 7；

Fig. 9 is the structural schematic diagram of the example IV of the double air gaps motor of the utility model；

Figure 10 is the structural schematic diagram of the embodiment five of the double air gaps motor of the utility model；

Figure 11 is the partial sectional view of Figure 10；

Figure 12 is the partial sectional view of Figure 10；

Figure 13 is the structural schematic diagram of the embodiment six of the double air gaps motor of the utility model；

Figure 14 is the structural schematic diagram of the embodiment seven of the double air gaps motor of the utility model；

Figure 15 is the B-B direction cross-sectional view in Figure 14；

Figure 16 is the structural schematic diagram one of the embodiment eight of the double air gaps motor of the utility model；

Figure 17 is the structural schematic diagram two of the embodiment eight of the double air gaps motor of the utility model.

Specific embodiment

The embodiments of the present invention is described further with reference to the accompanying drawing.

The specific embodiment one of the double air gaps motor of the utility model, as shown in figure 3, figure 4 and figure 5, including shell, shell The first stator 102 and the second stator 102a are installed in vivo, there is rotor 101 between the first stator 102 and the second stator 102a. First, second stator is coaxial with the rotor setting, and rotor is radially located between the first stator and the second stator in shell.Rotor 101 have the silicon steel sheet of dentation to be formed by stacking by annular inside and outside circle, and the slot form of slot form and existing rotor is complete Equally, the tooth socket on 101 inside and outside circle of rotor is that uniformly distributed and interior external tooth is corresponding, the silicon steel sheet radial width four of slot root 101a Millimeter or more, rotor 101 is evenly equipped with no less than three or more location hole 106a, location hole in the middle separated time between inside and outside circle Two millimeters of aperture of 106a or more.It is inlaid with rotor windings 103 respectively along wire casing inside and outside rotor 101, rotor windings 103 are more Phase Distributed Winding, its magnetic axis direction of every phase winding on 101 inside and outside circle of rotor be arranged radially and direction is identical, pitch is identical, The number of turns is identical, phase is identical.The winding of 101 two sides of rotor be often connected in series connection or two sets of polyphase windings be connected in parallel, rotor around 103 distribution forms of group are identical with existing machine winding distribution form, and the rotor windings of the present embodiment are three-phase windings and lead to It crosses slip ring 115 and accesses three phase mains.Rotor 101 is fastened on front and back rotor supports disk by the locating shaft 106 in location hole 106a 105, between 105a.107. insulation sleeve 107 of insulation sleeve of two sections or more tight fits is equipped between locating shaft 106 and location hole 106a It is made for engineering plastics or oxidized metal, locating shaft 106 is made by structural alloy steel, and 106 one end of locating shaft is fixed on rotor branch On support plate 105, the other end has screw thread and by nut 110, plain cushion 109, felt pad 108 by fan 111, rotor supports disk 105a, rotor 101 are fastened on rotor supports disk 105, rotor supports disk 105,105a be discoid metal material make and It is equipped with location hole corresponding with rotor 101 along disk end face, two sets of bearings 119 on rotor supports disk 105,105a are supported on solid On dead axle 116, fixing axle 116 is that metal material makes and is fixed on the inner hole of end cap 112a, rotor supports disk 105 and rotor Axis 105b is structure as a whole, and the short set outer circle of rotor supports disk 105a is equipped with three-phase copper slip ring.The inside and outside circle two sides of rotor 101 point It is not provided with the second stator 102a, the first stator 102, a fixed length is equipped between the first, second stator 102,102a and rotor 101 Spend size air gap, the first, second stator 102,102a by silicon steel sheet stack be combined into its form construction it is complete with existing synchronous motor Exactly the same, the present embodiment uses existing synchronous motor hidden pole type electromagnet poles structure, on the first, second stator 102,102a First, second stator winding 104, the number of turns of 104a are identical, excitation magnetic axis direction is identical, 101 two sides magnetic pole winding of rotor is string The magnetic direction that connection connection generates is identical and inside and outside field axis is overlapped, and the second stator 102a is fixed by positioning device solid The lead of the second stator winding 104a on dead axle 116 is drawn by 116 centre bore of fixing axle, and the first stator winding 104 passes through Positioning device is fixed on the rib 114 of casing 113, and fixing axle 116 is made by carbon steel and passes through positioning key 117 and set screw It is fixed in end cap 112a inner hole.End cap 112,112a are equipped with air port 130, and pass through positioning and fastening arrangement group with casing 113 At a fixed body, end cap 112 is equipped with bearing 120 and is used to support armature spindle 105b, and armature spindle 105b is output shaft.

The method of operation one: double air gaps motor running mode in the present embodiment passes through double air gaps motor there are two types of having External separate excitation rectifying device of excitation is specified with being generated in stator rotor airgap with rated direct current to motor excitation winding Magnetic flux, external three phase mains pass to three-phase electricity to rotor windings by slip ring, and rotor is in the first, second magnetic pole of the stator shape At double air gaps magnetic field in rotate, and pass through the outer output mechanical power of rotor axial.

The method of operation two: it installs third harmonic excitation winding additional in rotor tooth socket and forms self-excitation magnetic system and slided by excitation Ring is connect with stator winding, other are identical as the method for operation one.

The specific embodiment two of the double air gaps motor of the utility model, as shown in fig. 6, rotor 101 in the present embodiment, The structure and embodiment of rotor windings 103, rotor supports disk 105, locating shaft 106, insulation sleeve 107, felt pad 108, plain cushion 109 Structure in one is identical.With embodiment one the difference is that the 110a in the present embodiment is riveted joint, rotor supports disk 105 It is fixed on motor rotary shaft 122 for L shape sleeve-like structure, the lead of rotor windings 103 passes through the centre bore connection in shaft 122 Onto slip ring 115.End cap 112 is drag cup sleeve-like structure, have big denticular silicon steel sheet be made the first, second stator 102, 102a, structure is identical as first, second stator of the present embodiment one and the glass holder outer circle that is separately fixed on end cap 112 on and In the inner circle of casing 113, the first, second stator 102,102a also can be used permanent magnet material and make, the first, second stator 102, 102a is identical as specific embodiment one as the positional relationship of rotor 101, equipped with bearing 120 for branch in end cap 112,112a internal diameter Support shaft 122.

There are two types of double air gaps motor running mode in the present embodiment has, the method for operation one: fixed casing passes through shaft On slip ring to rotor windings provide multiphase electricity or by controller provide variable-frequency variable-voltage power supply, rotor rotate, externally export machine Tool power.

The method of operation two: fixed rotor axis installs Hall element, rotor windings lead and Hall element additional on rotor silicon steel sheet Lead is directly led out by hollow shaft, is connected on controller, and DC power supply provides variable-frequency electric to rotor windings by controller Pressure, casing rotate external output mechanical power.

The specific embodiment three of the double air gaps motor of the utility model, as shown in Figure 7, Figure 8, the difference with embodiment one Place is that the multilayer silicon steel sheet that rotor core is built up in the present embodiment is spliced by six I-shaped stators, two neighboring The groove of I-shaped silicon steel sheet docks to form tooth socket.Rotor windings 103 are that be embedded in six monodentates respectively I-shaped for concentratred winding In iron core groove, the concentratred winding on rotor 101 can connect into polyphase windings, along the fan shape center line of each monodentate iron core Outer circle both ends are set altogether there are two location hole 106a, and each I-shaped sector rotor 101 is by two set screw 106b and pressing plate 102c is axially fixed on rotor supports disk 105, has twice annular convex rib at 105 angle head cylindrical of rotor supports disk, has in convex ribs 12 positioning wire holes have between interior place's convex ribs an annular groove for accommodating rotor windings 103, set screw 106b and rotor Support plate 105, rotor 101 are a fixed body, remaining mechanical structure and electromagnetic relationship working method and implementation in the present embodiment Example one and embodiment two are identical.

The specific embodiment four of the double air gaps motor of the utility model, as shown in figure 9, the double air gaps electricity in the present embodiment Motivation is asynchronous machine, and there are two types of structure type, one: the second stator 102a of form and 102 silicon steel of the first stator for asynchronous machine tool The tooth socket of on piece is that (shape is identical as existing asynchronous machine stator) is arranged in circumference uniform distribution dentation, and the second stator 102a and first is fixed Stator winding 104a, 104 are inlaid in the wire casing of son 102, and the first, second stator winding 104,104a are polyphase windings, and phase Number is identical, phase is identical, and every phase the number of turns is identical, every phase magnetic axis direction is identical, and two sets of the first, second stator winding 104,104a Winding parallel connection or the windings in series connection of every same phase, the iron core of rotor 101 is identical as the rotor core of embodiment one, Be inlaid with rotor windings 103 respectively along excircle and inner periphery in wire casing on 101 inside and outside circle of rotor, rotor windings be mouse cage around Group.Remaining mechanical structure in the embodiment is identical as specific embodiment one, specific embodiment two.Double air gaps in the present embodiment The method of operation of motor are as follows: to the polyphase windings of the second stator 102a and the first stator 102 input polyphase ac voltage, second The polyphase windings of stator 102a and the first stator 102 form a double air gaps rotating excitation field, the rotating excitation field cutting rotor mouse cage Winding, asynchronous rotation under the action of electromagnetic force of the rotor windings in double air gaps.Form two: with form one the difference is that Mouse cage winding is changed to polyphase windings, polyphase windings are changed to mouse cage winding, remaining structure method of operation and specific embodiment two It is identical.

The specific embodiment five of the double air gaps motor of the utility model, as shown in figs. 10,11 and 12, with embodiment One the difference is that, stator core 202 in the present embodiment is two stator cores there are two disc type axial arrangement and tools 202 are fixed on casing rib 225 along shell axial alignment and by T shape outer support ring 223.Outer support ring 223 is by metal material Material production, outer support ring 223 are positioned with casing rib 225 by positioning key 226, and two disc type positioning iron cores 202 are by silicon Steel coil strip makes around annular and is respectively provided with tooth socket in both sides of the face, and the form of tooth socket is identical as existing disc type electric machine tooth socket form, Axial width between two 202 two sides slot bottoms of disc type stator core is greater than five millimeters and passes through set screw 229 or welding side Formula is fixed in the internal diameter of outer support ring 223, passes through set screw 229 or welding by the inside support ring 224 of metal material production Mode is fixed in 202 internal diameter of disc type stator core, is inlaid with multiphase point in two 202 both ends tooth sockets of disc type stator core respectively Cloth winding 204, the magnetic axis direction of polyphase windings 204 are axial alignment, structure type and electromagnetic relationship and embodiment one In rotor 101 on rotor windings 103 it is identical.Each 202 two sides of stator core are equipped with disk rotor magnetic pole 201, and disc type turns Sub- magnetic pole 201 can be hidden pole type or salient pole formula, and there are two types of the specific production forms of disk rotor magnetic pole 201.One: L shape of form It is made with T shape disk rotor magnetic pole 201 by whole ferromagnetic metallic material, is provided with tooth socket in face or both ends of the surface at one end and by fixed Position key 227 is fixed in shaft 222.Form two: disk rotor core magnetic pole 201 is made by silicon steel tape wrapping, at one end face or It is provided with tooth socket in both ends of the surface and is fixed in inside and outside metal support sleeve by weld 228 or set screw 229, support sleeve 224 Inner hole be fixed in shaft 222 by positioning key 227.

Excitation winding 203 is inlaid in the tooth socket of disk rotor magnetic pole 201 respectively and is drawn by the centre bore of shaft 222 and is connect Onto slip ring 215, the structure type and connection type of excitation winding 203 are the same as example 1, each disk rotor magnetic pole 201 It is also identical as specific embodiment one as the electromagnetic relationship of disc type stator core 202.Fan 211 is fixed on L shape rotor, casing 213 are made of metal material and are fixed between two end cap 212,212a, have air port 230 on end cap 212,212a and in internal diameter In be used to support shaft equipped with bearing 220.

The method of operation of the double air gaps motor of the present embodiment is identical as the method for operation of specific embodiment one.

The specific embodiment six of the double air gaps motor of the utility model, as shown in figure 13, the double air gaps in the present embodiment Motor is single rotor disc-type electric motor, and disk rotor magnetic pole 201 is fixed on shaft 222 by inside and outside support ring 224,223 On, disc type stator core 202 is fixed on casing 213, and disc type magnetic pole of the stator is magneto or electromagnetic type.Other and embodiment five It is identical, it repeats no more.

The specific embodiment seven of the double air gaps motor of the utility model is determined in the present embodiment as shown in Figure 14, Figure 15 Sub- iron core 202 is cyclic annular split type I-shaped monodentate iron core, is inlaid with excitation winding 203, excitation in 202 groove of stator core 203 form of winding is concentratred winding, and stator core 202 is that radially overlapping passes through two fixed screw 206b and pressure to arc silicon steel sheet Plate 202c is fixed on outer U-shaped support ring 223b or interior U-shaped support ring 224b, and U-shaped support ring 223b is made simultaneously by metal material It is fixed in casing 213 or shaft 222, remaining structure and electromagnetic relationship are identical as specific embodiment five, specific embodiment six.

The specific embodiment eight of the double air gaps motor of the utility model, it is double in the present embodiment as shown in Figure 16, Figure 17 Air gap motor is disc type asynchronous motor.There are two types of form, forms one: disk rotor magnetic pole for disc type asynchronous motor tool 201 are made by silicon steel tape wrapping and are provided in both sides of the face uniformly distributed tooth socket, slot form and existing disc-type electric motor tooth socket It is identical, mouse cage winding 203 is inlaid in the iron core two sides tooth socket of disk rotor 201c respectively, rotor core passes through inside and outside support sleeve It is fixed in shaft.Disc type stator core 202 is provided with uniformly distributed tooth socket, stator core by silicon-steel sheet coiled around production and in one side 202 are placed in the two sides of disk rotor 201c, are inlaid with multiphase distribution winding 204, stator iron in stator core tooth socket respectively Core 202 is fixed in casing inner circle by inside and outside support sleeve 224.Other structures form is identical as embodiment five.Form two: by shape The disk rotor 201c of formula one is changed to disc type stator core 202 and is fixed in casing inner circle, 202 two sides tooth socket of disc type stator core Inside it is inlaid with multiphase distribution winding 204.The disc type stator core 202 of form one is changed to disk rotor 201c and is fixed on shaft On, it is inlaid with mouse cage winding in the tooth socket of the every side disk rotor 201c, other are identical as form one.

The method of operation of double air gaps motor in the present embodiment is identical as the traffic direction of specific embodiment four.

Claims (17)

1. double air gaps motor, it is characterised in that: including shell and be mounted on the intracorporal stator of shell, rotor, the stator packet The first stator and the second stator are included, rotor makes to be formed between rotor and the first, second stator between the first, second stator Double air gaps, first stator and the second stator include stator core and stator winding, and rotor includes rotor core and turns Sub- winding, the second stator winding is identical as the number of turns of every phase winding of the first stator winding, phase is identical, pitch is identical, and the Two stators are consistent with the direction for the axis of magnet that the winding of the first stator generates on rotor magnetic loop.

2. double air gaps motor according to claim 1, it is characterised in that: the rotor core is two-sided dentalation, Perhaps be equipped with tooth socket rotor windings on both sides of the face is embedded in inside and outside circle or two sides tooth to the inside and outside circle of rotor core respectively In slot.

3. double air gaps motor according to claim 2, it is characterised in that: the rotor windings be multiphase distribution around Group.

4. double air gaps motor according to claim 2, it is characterised in that: the silicon steel sheet of the rotor core is by least Three or more locating shafts are fixed in support plate, by the insulation sleeve that engineering plastics make be fixed on rotor core and locating shaft it Between.

5. double air gaps motor according to claim 1, it is characterised in that: the rotor core is monodentate structure, rotor Winding is wrapped on tooth socket.

6. double air gaps motor according to claim 5, it is characterised in that: the rotor windings are centralized winding.

7. described in any item double air gaps motor according to claim 1 ~ 6, it is characterised in that: the first stator, the second stator with And rotor coaxial setting, shell radially, rotor is between the second stator and the first stator.

8. double air gaps motor according to claim 7, it is characterised in that: it is equipped with fixing axle in the shell, described the Two stators are fixed in fixing axle, and by supporting element and fixing axle rolling assembling, shell is stretched out in one end of supporting element at the both ends of rotor Body constitutes output shaft.

9. double air gaps motor according to claim 7, it is characterised in that: it is rotatably equipped with output shaft in the shell, The rotor is fixedly connected on output shaft, and second stator is immobilized in the shell with the first stator.

10. double air gaps motor according to claim 9, it is characterised in that: the lead of rotor polyphase windings passes through slip ring It is connect with input power cord.

11. double air gaps motor according to claim 5 or 6, it is characterised in that: build up the silicon steel sheet of rotor core by extremely Few four I-shaped silicon steel sheets are spliced, and the groove of two neighboring I-shaped silicon steel sheet docks to form tooth socket.

12. described in any item double air gaps motor according to claim 1 ~ 6, it is characterised in that: double air gaps motor is asynchronous Motor, the second stator and the first stator are respectively and fixedly installed in shell, and the second stator winding is in parallel with the first stator winding The connection of the windings in series of connection or same phase.

13. double air gaps motor according to claim 12, it is characterised in that: the rotor windings are mouse cage winding, the Two stator winding and the first stator winding are multiphase distribution winding.

14. double air gaps motor according to claim 12, it is characterised in that: the rotor windings be multiphase distribution around Group, the second stator winding and the first stator winding are mouse cage winding.

15. described in any item double air gaps motor according to claim 1 ~ 6, it is characterised in that: rolling assembling in the shell There is output shaft, the first, second stator and rotor are axial disk structure, and the first, second stator and rotor coaxial are arranged in shell In body axial direction, between the first, second stator, the first, second stator is fixedly connected with the casing rotor, and rotor and output shaft are solid Fixed connection.

16. double air gaps motor according to claim 15, it is characterised in that: the first, second stator is arranged in groups and is Multiple groups have a rotor between two adjacent groups.

17. double air gaps motor according to claim 16, it is characterised in that: the first, second stator passes through T shape support ring It is fixed on shell.