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CN206379852U - The stator of electric rotating machine and the electric rotating machine for possessing the stator - Google Patents

The stator of electric rotating machine and the electric rotating machine for possessing the stator Download PDF

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Publication number
CN206379852U
CN206379852U CN201590000583.6U CN201590000583U CN206379852U CN 206379852 U CN206379852 U CN 206379852U CN 201590000583 U CN201590000583 U CN 201590000583U CN 206379852 U CN206379852 U CN 206379852U
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CN
China
Prior art keywords
stator
rotating machine
coil
electric rotating
magnetization
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Expired - Fee Related
Application number
CN201590000583.6U
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Chinese (zh)
Inventor
池田刚
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Publication of CN206379852U publication Critical patent/CN206379852U/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

The utility model provides the stator of electric rotating machine and possesses the electric rotating machine of the stator, can suppress to put on the load of coil line, and can carry out the magnetization with the past equal magnetic force.The stator of electric rotating machine is cylindric and with multiple teeth portion to the prominent setting in internal diameter side, it is connected in series in the way of multiple teeth portion are wound with electrically independent multiple coils by concentrating winding respectively, and the magnetic field produced when electric current is in the coil flowing is produced to same direction.

Description

The stator of electric rotating machine and the electric rotating machine for possessing the stator
Technical field
The utility model is related to the stator of electric rotating machine and possesses the electric rotating machine of the stator.
Background technology
In recent years, in order to improve the efficiency of motor, mostly using the direct winding line astragal of a teeth portion in stator It is referred to as the spiral mode for concentrating winding.With the mode for being referred to as distribution winding of multiple teeth portion winding line astragals across stator Compare, due to the length of coil line can be shortened, therefore, it is possible to reduce the loss brought by coil line resistance, so as to improve electronic The efficiency of machine.In addition, being wound by using concentrating, because the volume of coil can reduce, therefore with can be small by motor The feature of type.
In the rotor of motor for the stator for concentrating winding is employed, typically using permanent magnet.The permanent magnetic of rotor The mode of magnetization of iron has following two modes:The magnetization side before rotor before assembling stator and rotor has the assembling of permanent magnet Formula;With assembling stator and rotor after make high current flow in the stator and using its generation magnetic field, to the magnetic of rotor Property part carry out the magnetized embedded mode of magnetization.There is no the permanent magnet of the rotor when the embedded mode of magnetization is due to assembling The influence that magnetic force is brought, therefore compared with the mode of magnetization before assembling, assembleability is good.The magnetic part of other rotor by not yet by Magnetized magnetic material is constituted.
In patent document 1, the embedded magnetization of the rotor of the motor for the stator for concentrating winding has been taken as, it is open By connecting excitation supply, and plus high-pressure pulse voltage between the two phases in the three-phase of the stator of three-phase Y connection line, by This produces magnetic flux and carries out magnetizing method to the magnetic part of rotor.
In patent document 2, the spy of the saturated magnetization magnetic field reduction using rare earth element magnet needed for because of high temperature is disclosed Property, thermal medium is flowed to the inner side of rotor in embedded magnetization, so that in the temperature of the magnetic part that improves rotor Embedded magnetizing method is carried out under state.
In patent document 3, disclose when carrying out embedded magnetization, make the phase place change progress of rotor secondary magnetized Method.In once magnetizing, because magnetic flux distribution is uneven, therefore rotor is caused to occur magnetizing weaker part, but two It is secondary to magnetize the weaker part of magnetization that compensate for rotor.
Patent document 1:No. 3889532 publication of patent
Patent document 2:Japanese Unexamined Patent Publication 2013-240224 publications
Patent document 3:No. 3601288 publication of patent
But, in the technology disclosed in patent document 1, the magnetic field needed for embedded magnetization is more than 2T, is now applied It is several kV or so in the voltage of coil line, electric current is thousands of A larger numerical value.Thus exist in embedded magnetization to coil The insulating film of line applies the problem of load.
In addition, in technology disclosed in patent document 2, due to making thermal medium pass through in the rotary shaft for constituting rotor, therefore The equipment for circulating thermal medium is needed, therefore there is the problem of equipment enlarging.
In addition, in technology disclosed in patent document 3, although needed for making embedded magnetization by secondary embedded magnetization Magnetic flux density uneven equalization, but minimum magnetic flux density needed for magnetization and implementation once embedded magnetization when situation do not have Change.Therefore the problem for applying load to the insulating film of coil line is similarly there are with technology disclosed in patent document 1.
Utility model content
The utility model is used to solve above-mentioned problem, and its object is to provide not make equipment large-scale in embedded magnetization Change, reduce the damage for the insulating film for bringing coil line surface, and can carry out assigning the magnetic material of rotor and conventional The stator of the embedded magnetized electric rotating machine of same magnetic force and the electric rotating machine for possessing the stator.
The stator of electric rotating machine of the present utility model be it is cylindric and with multiple teeth portion to the prominent setting in internal diameter side, it is many The individual teeth portion is wound with electrically independent multiple coils by concentrating winding respectively, and with electric current in the coil flowing When the magnetic field that the produces mode that is produced to same direction be connected in series.
Preferably, the magnetic field that multiple coils are produced when electric current flowing is connected in the way of being produced to same direction, many The individual coil connects through switch to carry out, and the switch can be carried out to the state of electrical connection with the state not electrically connected Switching.
Electric rotating machine of the present utility model possesses the stator of above-mentioned electric rotating machine.
According to the utility model, due to a teeth portion of the stator in electric rotating machine to be wound with the shape of multiple coils side by side State carries out embedded magnetization, therefore required maximum voltage reduces the quantity of the coil wound side by side, so as to reduce to line The load of the insulating coating of astragal.In addition, in embedded magnetization, due to rotor need not be made to turn into high temperature, therefore, it is possible to provide The electric rotating machine of embedded magnetized equipment enlarging need not be made.
Brief description of the drawings
Fig. 1 is the stereogram of the stator of the electric rotating machine of embodiment 1 of the present utility model.
Fig. 2 be the electric rotating machine of embodiment 1 of the present utility model the section vertical with rotary shaft in stator and turn The explanation figure of the construction of son.
Fig. 3 is the figure that segmentation core is extracted from Fig. 1 stator.
Fig. 4 is the figure of the section for the segmentation core for representing Fig. 3.
Fig. 5 is the example for changing the respective number of turn of coil in Fig. 4 segmentation core.
Fig. 6 is the stereogram of the segmentation core of the stator of the electric rotating machine of embodiment 2 of the present utility model.
Fig. 7 is the stereogram of the segmentation core of the stator of the electric rotating machine of embodiment 3 of the present utility model.
Fig. 8 is the figure of the section for the brazed portion for representing Fig. 7.
Fig. 9 is the stereogram of the segmentation core of the stator of the electric rotating machine of embodiment 4 of the present utility model.
Embodiment
Hereinafter, embodiment of the present utility model is illustrated based on accompanying drawing.In addition, the utility model is not following The embodiment of explanation is limited.And the relation that in figures in the following, there is the size of each component parts is different from reality Situation.In the case where reference carries tail tag (such as " a " of " 10a "), to referring to band without the reference of tail tag There is the entirety of its tail tag.
Embodiment 1
Fig. 1 is the stereogram of the stator 10 of the electric rotating machine of embodiment 1 of the present utility model.Fig. 2 is the utility model Embodiment 1 electric rotating machine the section vertical with rotary shaft 52 in stator 10 and rotor 50 construction explanation figure. Fig. 3 is the figure that segmentation core 20 is extracted from Fig. 1 stator 10.Stator 10 is constituted by being configured to circular by multiple segmentation cores 20. The inner side of the housing of the electric rotating machine such as being fixed on motor in advance of stator 10.As shown in Fig. 2 stator 10 internal side diameter and The inner side of circle is arranged as in teeth portion 23, defined rotor 50 of the space insertion with unmagnetized magnetic part 51 is separated. The enclosure interior of electric rotating machine is supported by rotary shaft 52 by bearing etc., and thus rotor 50 is protected in the state of it can rotate Hold.In addition, the housing and bearing of electric rotating machine omit diagram.
(rolling step)
Multiple segmentation cores 20 are set in the mode prominent to the internal side diameter of stator 10 of teeth portion 23 respectively.It is wound with teeth portion 23 Multiple coils 40.In Fig. 1~Fig. 3, in order to which explanation is become into simple, show to be wound with two coils 40 (40a, 40b) and Each coil 40 (40a, 40b) is wound with the example of 1 circle coil line respectively.In addition, the winding side of each coil 40 (40a, 40b) To for same direction.Top portion 41a represents part when coil 40a winding starts, and terminal part 42a represents coil 40a volume Around the part of end.In the same manner, top portion 41b represents part when coil 40b winding starts, and terminal part 42b represents coil The part that 40b winding terminates.Stator 10 is fixed in electric rotating machine, is magnetized by the magnetic part 51 to rotor 50 Process before, coil 40a and coil 40b are electric independent respectively.In addition, rolling step is not limited in manufacture embodiment 1 The process that what is illustrated be wound with electrically independent two coil 40a and coil 40b the stator of the structure of 1 circle respectively.Also may be used To be wound with more than two coils 40 in a teeth portion 23, each coil 40 can also be wound more than 1 circle.
(magnetization process)
Permanent magnet is used in the rotor 50 using the electric rotating machine for the stator 10 for concentrating winding.The permanent magnetic of rotor 50 The mode of magnetization of iron has carries out the mode of magnetization before magnetized assembling before assembling stator 10 with rotor 50 to magnetic part 51. Also have after assembling stator 10 with rotor 50 to the applying high voltage of stator 10, so that using the magnetic field of its generation to magnetic portion Part 51 is magnetized and obtained the embedded mode of magnetization of permanent magnet.The embedded mode of magnetization assembling when, the rotor 50 Magnetic part 51 does not have magnetic force, and the operation on magnetic force does not influence, therefore compared with the mode of magnetization before assembling, assembleability is good It is good.In the electric rotating machine of embodiment 1, using the embedded mode of magnetization.
Fig. 4 is the figure of the section for the segmentation core 20 for representing Fig. 3.If splitting the vertical with length direction of core 20 in Fig. 3 Face intercepts section, then as shown in Figure 4.Embedded magnetization is electric in the multiple electrically independent coils 40 that will be wound in teeth portion 23 Ground carries out applied voltage in the state of being connected to excitation supply side by side.That is, coil 40a and coil 40b connects top portion 41a, 41b The electrode for the side being connected in two electrodes of excitation supply, terminal part 42a, 42b is connected to the electrode of the opposing party, and The DC voltage of high pressure.Thus the magnetic field of equidirectional is produced in coil 40a and coil 40b, by the magnetic field to rotor 50 Magnetic part 51 is magnetized.
(coil 40a and coil 40b connection process)
Then, the coil 40a and coil 40b of segmentation core 20 electrical connection are carried out.In a segmentation core 20 shown in Fig. 3 In, the coil 40b of the coil 40a positioned at the internal side diameter of stator 10 and the outside diameter positioned at stator 10 side of the electrical connection to connect Formula is connected.That is, the top portion 41a connections of the coil 40a of the coil 40b of outside diameter terminal part 42b and internal side diameter, are used as one Coil 40, is connected by the electric current of the flowing in coil 40 from the outside diameter of stator 10 towards internal diameter in the way of lateral direction flowing Connect.That is, it is connected as:If electric current flows in coil 40 in the state of coil 40a is connected with coil 40b, in coil 40a, line Circle 40b flows the electric current of identical direction of rotation respectively, produces unidirectional magnetic field.In addition, constituting each segmentation of stator 10 Core 20 is respectively same configuration.
(effect)
As described above, when carrying out embedded magnetization, the electrically independent multiple of segmentation core 20 will be wound in Coil 40a and coil 40b are connected side by side, and DC voltage.Therefore the voltage needed for embedded magnetization can be divided into The electrically independent coil number in embedded magnetization, therefore coil number is more divided, the voltage for putting on each coil 40 is lower, And then the load of the insulating film to the coil line of coil 40 can be reduced.
Fig. 5 is the example for changing the respective number of turn of coil 40 in Fig. 4 segmentation core 20.In embodiment 1, one is used as Individual example shows to wind electrically independent 2 coil 40a and coil 40b into the structure of 1 circle respectively, but the number of coil 40, The number of turn of each coil 40 is not limited to this.For example, it is also possible to as shown in Figure 4 turn into will electrically independent two coil 40a and Coil 40b winds the structure of 52 circles respectively.In Fig. 4, coil 40a is indicated added with hatching.
Embodiment 2
In embodiment 2, relative to embodiment 1, the mutual company of multiple coils 40 in each segmentation core 20 is changed Connect method.Hereinafter, by with being illustrated centered on the difference of embodiment 1.
Fig. 6 is the stereogram of the segmentation core 20 of the stator 10 of the electric rotating machine of embodiment 2 of the present utility model.Implementing After embedded magnetization, it is wound by pressure welding in the multiple coil 40a and coil 40b of segmentation core 20 electrical connection.It is right In the pressure welding of coil 40a and coil 40b coil line, such as using " the referred to as naked pressure welding of copper cash of the defineds of JIS C 2806 " The docking of the cartridge type of sleeve sleeve 30.Coil 40a top portion 41a and coil 40b are inserted with the inside of sleeve 30 in docking Terminal part 42b, and pressure welding is electrically connected in this condition.Pressure welding is carried out with sleeve 30 by using the docking of cartridge type, by This can be electrically connected with simple process, improve the productivity ratio of electric rotating machine.
Embodiment 3
Embodiment 3 is also to change multiple mutual connections of coil 40 in each segmentation core 20 relative to embodiment 1 The embodiment of method.Hereinafter, by with being illustrated centered on the difference of embodiment 1.
Fig. 7 is the stereogram of the segmentation core 20 of the stator 10 of the electric rotating machine of embodiment 3 of the present utility model.Implementing After embedded magnetization, the multiple coil 40a and coil 40b in segmentation core 20 are wound by soldering using solder 60 Electrical connection.Coil 40a is in coil 40b coil line around the state being connected as shown in Figure 6, online astragal and adhere to weldering Material 60 is electrically connected.
Fig. 8 is the figure of the section for the brazed portion for representing Fig. 7.If the portion intercepts top portion 41a of solder 60 in the figure 7 with And the terminal part 42b section substantially vertical with the central shaft of coil line, then as shown in Figure 8.In order to suppress the consumption of solder 60, The shape of solder 60 is preferably formed into the shape on the surface of covering coil line as shown in Figure 8.By making after embedded magnetization Coil 40a top portion 41a and coil 40b terminal part 42b are electrically connected with solder 60, thus with structure can be reduced Into electric rotating machine number of components and can directly reduce the effect of fee of material.For example compressor is assembled in stator 10 In the case of, the maximum temperature in compressor rises to 130 DEG C, therefore solder 60 is used with the fusing point more than this and inexpensively Such as alloy composition is the material of Sn96.5%-Ag3%-Cu0.5% lead-free solder etc.
Embodiment 4
Embodiment 4 is also that the mutual company of multiple coils 40 in each segmentation core 20 is changed relative to embodiment 1 Connect the embodiment of method.Hereinafter, by with being illustrated centered on the difference of embodiment 1.
Fig. 9 is the stereogram of the segmentation core 20 of the stator 10 of the electric rotating machine of embodiment 4 of the present utility model.Implementing After embedded magnetization, the switching for passing through switch 70 be wound in the multiple coil 40a and coil 40b of segmentation core 20 electricity Connection.Coil 40a top portion 41a and coil 40b terminal part 42b are connected to switch in advance before embedded magnetization 70.Then, switch 70 is by sliding sliding part 71, thus to coil 40a and the electrically independent states of coil 40b and electrically The state of series connection is switched over.By so, in embedded magnetization, coil 40a and coil 40b is electrically independent, and embedding Enter formula magnetization after, can by switch 70 switching, be electrically coupled what is be connected with coil 40b with single-tap come switching coil 40a State.Using the structure, the electrical connection with the coil 40 that can carry out segmentation core 20 in the short time after embedded magnetization Effect.Switch 70 is for example using by mobile sliding part 71, thus, it is possible to switch connecting between two contacts, disconnected cunning Dynamic switch etc..
(The effect of invention)
(1) manufacture method of electric rotating machine of the present utility model is that the electric rotating machine possesses:Cylindric stator 10, It has the multiple teeth portion 23 for protruding inwardly setting;Rotor 50, it is arranged at the internal diameter of stator 10 in the way of it can rotate Portion and with magnetic part 51, the manufacture method of the electric rotating machine has following process:Rolling step, is wound by concentrating Multiple coils 40 are wrapped around into multiple teeth portion 23;Magnetize process, by distinguishing additional magnetizing voltage to multiple coils 40, by This magnetizes to magnetic part 51;Process is connected, is produced with the magnetic field that electric current is produced when each coil 40 flows to same direction Raw mode electrically connects multiple coils 40.
By so constituting, the coil that for example a teeth portion 23 of the stator 10 in electric rotating machine can be side by side wound 40a and coil 40b each abreast apply voltage and carry out embedded magnetization.Therefore the maximum voltage needed for magnetizing is reduced side by side The quantity of the coil 40 of winding.The coil line to each coil 40 caused by the voltage of each coil 40 is put on therefore, it is possible to reduce Insulating coating load.And then the reliability of electric rotating machine can be improved.In addition in embedded magnetization, can utilize with Embedded magnetization, the maximization without equipment are carried out toward identical equipment.
(2) in the manufacture method of the electric rotating machine of above-mentioned (1), connection process carries out multiple coils 40 by pressure welding Connection.It by so constituting, can be electrically connected with simple process, improve the productivity ratio of electric rotating machine.
(3) in the manufacture method of the electric rotating machine of above-mentioned (1), connection process carries out multiple coils 40 by soldering Connection.By so constituting, thus with can reduce constitute electric rotating machine number of components, can directly reduce fee of material Effect.
(4) in the manufacture method of the electric rotating machine of above-mentioned (1), connection process carries out multiple coils 40 by switch 70 Connection, the switch 70 can be switched over to the state of electrical connection with the state not electrically connected.By so constituting, with embedding Enter to carry out the effect of the electrical connection of the coil 40 of segmentation core 20 in the short time after formula magnetizes.
(5) in addition, the stator of electric rotating machine of the present utility model is cylindrical shape and has setting prominent to internal diameter side The stator 10 of the electric rotating machine of multiple teeth portion 23, multiple teeth portion 23 are wound with electrically independent multiple by concentrating winding respectively Coil 40.
By so constituting, can to the coil 40a of a teeth portion 23 of the stator 10 for being wound in electric rotating machine side by side with And coil 40b each abreast applies voltage.In manufacture method therefore, it is possible to realize the electric rotating machine of above-mentioned (1)~(4) Magnetize process, can reduce the coil line to each coil 40 caused by the voltage for putting on each coil 40 insulating coating it is negative Lotus.In addition, and then the reliability of electric rotating machine can be improved.In addition in embedded magnetization, it can be set with as in the past It is standby to carry out magnetization process, the maximization without equipment.
(6) multiple coils 40 of the stator 10 of the electric rotating machine of above-mentioned (5), are produced with electric current when each coil 40 flows The mode that magnetic field is produced to same direction is set, and connecting through for multiple coils 40 switchs 70 to carry out, and the switch 70 can be right The state of electrical connection is switched over the state not electrically connected.By so constituting, it can obtain imitating with above-mentioned (5) identical Really, and after embedded magnetization the electrical connection of multiple coils 40 of segmentation core 20 can be carried out in the short time.
(7) electric rotating machine of the present utility model possesses the stator 10 of the electric rotating machine of above-mentioned (6).By so constituting, energy Enough offers reduce the load for the insulating coating for putting on the coil line to each coil 40 caused by the voltage of each coil 40, and Possess with the electric rotating machine with the rotor of in the past equal magnetic force.In addition, can manufacture in embedded magnetization, it can utilize Equipment as in the past carries out electric rotating machine of the embedded magnetization without equipment enlarging.In addition, can enter in the short time The electrical connection of multiple coils 40 of row segmentation core 20, can shorten the time that the manufacture of electric rotating machine is spent.
Description of reference numerals:10 ... stators;20 ... segmentation cores;23 ... teeth portion;30 ... docking sleeves;40 ... coils; 40a ... coils;40b ... coils;41a ... tops portion;41b ... tops portion;42a ... terminal parts;42b ... terminal parts;50 ... rotors; 51 ... magnetic parts;52 ... rotary shafts;60 ... scolding tin;70 ... switches;71 ... sliding parts.

Claims (3)

1. a kind of stator of electric rotating machine, the stator of the electric rotating machine is cylindric and with to the multiple of the prominents setting in internal diameter side Teeth portion, the stator of the electric rotating machine is characterised by,
Multiple teeth portion are wound with electrically independent multiple coils by concentrating winding respectively, and with electric current in the line The mode that the magnetic field produced during circle flowing is produced to same direction is connected in series.
2. the stator of electric rotating machine according to claim 1, it is characterised in that
The magnetic field that multiple coils are produced when electric current flowing is connected in the way of being produced to same direction,
Multiple coils connect through switch to carry out, the shape that the switch can be to the state of electrical connection with not electrically connecting State is switched over.
3. a kind of electric rotating machine, it is characterised in that
Possesses the stator of the electric rotating machine described in claim 2.
CN201590000583.6U 2015-09-18 2015-09-18 The stator of electric rotating machine and the electric rotating machine for possessing the stator Expired - Fee Related CN206379852U (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/076756 WO2017046954A1 (en) 2015-09-18 2015-09-18 Method for manufacturing rotary electric machine, stator for rotary electric machine, and rotary electric machine equipped with stator

Publications (1)

Publication Number Publication Date
CN206379852U true CN206379852U (en) 2017-08-04

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Publication number Priority date Publication date Assignee Title
JP7058802B2 (en) * 2019-05-24 2022-04-22 三菱電機株式会社 How to make motors, motors, compressors, and air conditioners

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Publication number Priority date Publication date Assignee Title
JP3903849B2 (en) * 2002-06-05 2007-04-11 日産自動車株式会社 Stator structure of electric motor and manufacturing method thereof
JP3750620B2 (en) * 2002-03-18 2006-03-01 松下電器産業株式会社 Permanent magnet motor
JP2005168086A (en) * 2003-11-28 2005-06-23 Sankyo Seiki Mfg Co Ltd Method of magnetizing permanent magnet of concentrated winding type motor, and concentrated winding type motor
JP4867978B2 (en) * 2008-11-14 2012-02-01 株式会社デンソー Motor and control device thereof
JP2010124636A (en) * 2008-11-20 2010-06-03 Sumitomo Electric Ind Ltd Coil unit and stator
JP6068953B2 (en) * 2012-11-28 2017-01-25 株式会社ミツバ Electric motor
JP5947744B2 (en) * 2013-05-09 2016-07-06 トヨタ自動車株式会社 Rotating electric machine stator and rotating electric machine

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