JP6481841B1 - Motor or generator and also linear motor [2] - Google Patents

Abstract

【Task】
The registered patent No. 6085753 is an innovative so-called magnetless motor whose (torque, output / weight) is increased by about one digit compared to the conventional motor due to the innovation of the coil configuration and the iron core structure. The above-mentioned iron core structure has a structure in which both ends of the tooth core are opposed to each other for weight reduction, there is no yoke part, and the epoxy mold is combined with the coil. Become.
SOLUTION: Holes 7-1, 7-2,..., 7 into which toothed iron cores are fitted in support boards 7 made of non-magnetic, high strength, light metal, for example, hard aluminum material, according to the positions where the toothed iron cores 10 are arranged. A strong mold body can be constructed based on the principle of steel concrete by hollowing out '-1, 7'-2, ..., and fitting the tooth iron core tightly and epoxy molding according to the opposite surface of the tooth iron core. The generated heat of the coil is concentrated on the support substrate, and cooling can be achieved by cooling the support substrate.
[Selection] Figure 1

Description

  The present invention relates to a stator tooth core and coil mold structure in an interconnected composite type Umemori motor of Japanese Patent No. 6085753 described in the latter term [0002].

まれて現在のモータは制御性だけではなく高効率化，低コスト化への宿命を負わされていまった。
この様な状況のもとで本出願と同一の出願人，発明者によって特許第６０８５７５３号，相互結合複合型梅森モータが登録された。該特許は転流相手のＡ，Ｂ相の２相構成のコイル組を複数互いに位相角を（π／コイル組数）ずつずらして重ね両面対向面の複数の歯溝鉄心それぞれに収納して構成した固定子と，両面或は両端に対向面を持つ複数の吸引極で対向面を構成した回転子または移動子と，二象限定電流制御回路からの定電流をＡ相，Ｂ相に切り換へながら順次に位相差（π／コイル組数）で各コイル組に供給して，各コイルの起磁力が集中した位置に該吸引極先端部或は後端部がくるように動作するスイッチとで構成したモータ或は発電機さらにまたリニアモータに関するもので高効率化，低コスト化の時代の要求によく適応できる。In 1965, a variable voltage variable frequency inverter using a pseudo positive arc wave was invented, and a system capable of high-quality speed control in combination with a synchronous motor and induction motor was completed and has been widely used until now. However, in recent years, the problem of global warming caused by carbon dioxide has been

Rarely, current motors were not only responsible for controllability but also for high efficiency and low cost.
Under such circumstances, the same applicant and inventor as in the present application registered Japanese Patent No. 6085753, an interconnected hybrid Umemori motor. The patent consists of a pair of commutation counterpart A and B phase two-phase coil stacks, with phase angles shifted by (π / number of coil pairs) and housed in a plurality of tooth gap cores on both surfaces facing each other. The fixed current from the two-quadrant limited current control circuit is switched between the A phase and the B phase, and the stator or rotor having the opposing surface composed of a plurality of attracting poles having opposing surfaces on both sides or both ends. A switch that sequentially supplies a phase difference (π / the number of coil sets) to each coil set while moving so that the tip or rear end of the attracting pole comes to a position where the magnetomotive force of each coil is concentrated. This is related to the motors or generators configured as above, and also to linear motors, and can be well adapted to the requirements of the era of high efficiency and low cost.

  The present invention relates to a stator with a core structure and a coil structure of the above-mentioned Japanese Patent No. 6085753, an interconnected composite type Umemori motor, for maintaining the tooth core during the molding process, a strong skin structure that does not rely on the outer skin, It solves an effective cooling method and further enhances its practicality.

  In the present invention, a hole having the same shape as the cross-sectional shape of a tooth core is cut out in a nonmagnetic support substrate in which the outer peripheral portion and the inner peripheral portion are thick and the portion between them is thin. The opposing surfaces are aligned and fixed, the central portion of the tooth core is fixed to the support substrate, and a plurality of two-phase coil sets of the A and B phases of the commutation counterpart are set on the tooth core. (Π / number of sets) A plurality of stator elements that are stacked and housed in a shifted manner, a rotor or a moving element that has opposing surfaces with a plurality of attracting poles having opposing surfaces on both sides or both ends, and a two-quadrant limited current A constant current from the control circuit is sequentially supplied to each coil set with a phase difference (π / number of coil sets) while switching between the A phase and the B phase, and the tip of the attracting pole or the position where the magnetomotive force of each coil is concentrated. Is a motor or generator composed of a switch that operates so that the rear end comes. Data.

・ The mechanism for positioning and holding the tooth core at the time of manufacture is replaced by the work of fitting the tooth core into the hole of the non-magnetic support board, which is the first step in mechanization of stator manufacturing.
・ By selecting a hard-strength material for the non-magnetic support substrate, it plays the role of a steel frame in steel concrete and can maintain strength without relying on the stator skin.
-The non-magnetic support substrate can be effectively consolidated by selecting a material with good heat conductivity, and can be easily cooled by attaching cooling fins to the support substrate.

Example of a 6-pole, 4-phase 4-sided motor according to the present invention Non-magnetic support substrate according to the present invention [A] Coil configuration according to the present invention [B] Magnetic flux circulation of tooth core according to the present invention Rotor structure according to the present invention [A] Configuration of FF switch according to the present invention [B] Each phase coil current according to the present invention Basic configuration for operation explanation (1) Basic configuration for operation explanation (2) Basic configuration for operation explanation (3)

  FIG. 1 shows a cross-sectional configuration of a six-pole quadruple-phase four-plane configuration according to an embodiment of the present invention. In the figure, 1 is a stator, 2 is a rotor, 3 is a bearing plate, 4 is a rotating shaft, 5 is a bearing, 6 is an angular position detector, 7 is a support substrate, 8 is a cooling fin, 9 is a spacer, 10 is Tooth core, 12 is a coil, 23 is a stator support member, 13 is a rotor support member, 14 is a suction pole, 15 is a stator screw, and 16 is a rotor screw. The stator is disc-shaped and is fixed around the case by spacers 9 and stator screws 15. The rotor 2 is configured to be separated into a rotor element 2-1 and a rotor element 2-2, and is inserted into the rotating shaft 4 in order so as to sandwich the stator 1 during the assembly process, and is inserted into the rotor screw. 16 is fixed to the rotary shaft 4.

紙面に垂直方向に貫通する。歯鉄心の磁束に垂直な断面の形状と穴の形状が合致するように構成し，歯鉄心の磁束方向の中央部を支持板に固定するようにきつく固定する。歯鉄心の周囲は支持板の骨格部分も含めて対向面以内はコイル収納のためのスペースになる。コイルは巻線機で，巻いたものを収納することが可能である。この後，該支持基板の両側面の対向面に挟まれた総ての空間部，即ち外周側の歯鉄心の外周側の部分２３−１，隣接歯鉄心の溝の部分２３−２，２３−４，外周側歯鉄心と内周側歯鉄心に挟まれた部分２３−３，内周側歯鉄心の内側部分２３−５をコイル１２と共に固定子支持部材２３で充填する。コイル発生熱は支持基板７で効果的に集められ，図１を参照して，支持基板の外側に取付けた冷却フィン８によって効果的に放散できる。FIG. 2 shows a support substrate 7 which forms a skeleton for constituting the double ring-shaped tooth gap core of the stator 1 in FIG. The support substrate is made of non-magnetic, heat-conductive, high-strength light metal, for example, hard aluminum. The outer peripheral part and the inner peripheral part of the support substrate 7 are thick, and the part between them is thin. The thick part is made to correspond to the opposing surface of the ring-shaped tooth core mentioned later. The outer peripheral side holes 7-1, 7-2, 7-3... Fit into the outer peripheral side teeth, and the inner peripheral holes 7′-1, 7′-2, 7′-3. ...

It penetrates perpendicularly to the page. It is constructed so that the shape of the cross section perpendicular to the magnetic flux of the tooth core matches the shape of the hole, and it is firmly fixed so that the central portion of the tooth core in the magnetic flux direction is fixed to the support plate. The area around the tooth core, including the frame portion of the support plate, is a space for storing the coil within the opposing surface. The coil is a winding machine and can store the wound one. Thereafter, all the spaces sandwiched between the opposing surfaces of the both side surfaces of the support substrate, that is, the outer peripheral portion 23-1 of the outer peripheral iron core and the groove portions 23-2, 23- of the adjacent tooth core. 4. A portion 23-3 sandwiched between the outer peripheral side iron core and the inner peripheral side iron core, and an inner portion 23-5 of the inner peripheral side iron core are filled together with the coil 12 by the stator support member 23. The heat generated by the coil is effectively collected by the support substrate 7 and can be effectively dissipated by the cooling fins 8 attached to the outside of the support substrate with reference to FIG.

FIG. 3A is a diagram illustrating a configuration of a coil wound around the stator 1, and FIG. 3B is a diagram for explaining a circulation state of the magnetic flux 17 of the tooth core of the stator 1. From the 6-pole quadrupole configuration, the magnetic pole pitch is 360 ° / 6 (pole) = 60 °, the pitch of the tooth core and groove pitch is 60 ° / 4 (heavy phase) 60 poles / 4 (heavy phase) 15 °. The number of tooth cores and the number of grooves in one round is 360 ° / 15 ° = 24.
In FIG. 3 (A), the tooth cores 10-1, 10-2, 10-3... Are outer peripheral tooth cores, and the grooves 11-1, 11-2, 11-3. . Similarly, the tooth cores 10'-1, 10'-2, 10'-3 are inner tooth cores, and the grooves 11'-1, 11'-2, 11'-3 are inner grooves. Indicates. The figure shows a part of each. The rotation direction of the rotor 2 existing so as to sandwich the stator 1 is the forward direction of the serial number of the tooth cores 10-1, 10-2, 10-3,.
The coil 12-1A is wound at the same angle by turning the three toothed iron cores 10-1, 10-2, 10-3 between the outer circumferential groove 11-1 and the groove 11-4 to the right. Three tooth cores 10′-1, 10′-2, 10′-3 between the groove 11′-1 and the groove 11′-4 on the inner peripheral side of the position are predetermined by turning counterclockwise opposite to the above. Is wound. As a result, the circulation of the magnetic flux 17 shown in FIG. 5B occurs, and four opposing surfaces of the air gaps 18-1, 18-2, 18-3, and 18-4 can be formed in one magnetic pole.
Needless to say, the surface of the air gap 4 is a basis for generating a suction force as a motor and an electromotive force as a generator.
Although not shown in FIG. 3 (A), the same thing as the above is repeated 3 times as shown below with 2 magnetic pole pitch, that is, 8 groove pitch.
Groove 11-1, Groove 11-4 and Groove 11'-1, Groove 11'-4
Groove 11-9, Groove 11-12 and Groove 11'-9, Groove 11'-12
Groove 11-17, Groove 11-20 and Groove 11'-17, Groove 11'-20
As described above, the three sets of coils are connected in series to constitute the coil 12-1A.

  A coil 12-1B is configured by providing another coil with a shift of one magnetic pole pitch, that is, a groove pitch, with respect to the coil 12-1A. The coil 12-1A and the coil 12-1B are spaced by one groove pitch, but have a margin for commutation of the coil current.

  Furthermore, coils 12-2A and 12-2B are configured by providing separate coils with a shift of one groove pitch in the rotational direction with respect to the coils 12-1A and 12-1B. Further, the coils 12-3A and 12-3B are shifted by two grooves from the initial position, and the coils 12-4A and 12-4B are shifted by three grooves.

  The direction of magnetomotive force of the coil 12 is unified between the outer coil and the inner coil, and is reversed between the outer coil and the inner coil. Circulating magnetic flux is generated in the same direction regardless of the position of the tooth gap core.

する必要がある。Referring to FIG. 1, the rotor 2 has a structure that can be separated into a rotor element 2-1 and a rotor element 2-2, and the rotating shaft 4 is sequentially arranged so as to sandwich the stator 1 during the assembly process. And fixed with the rotor screw 16.
FIG. 4 is a diagram for explaining the configuration of the rotor element 2-1. FIG. 2A is a view of the facing surface of the rotor element 2-1 as viewed from the facing surface side of the counterpart stator 1. Reference numerals 14-1, 14-2, and 14-3 denote suction poles. The width of the suction pole in the rotational direction is 6-pole structure, (360 ° / 6 (pole)) = 60 °, and has opposing surfaces facing the outer peripheral iron core 10 and the inner peripheral iron core 10 ′. Both are configured to be connected by a magnetic path, and three sets are arranged at two magnetic pole pitches, that is, 120 ° pitches, and held by a nonmagnetic, lightweight rotor support member 13. Referring to FIG. 1, the rotor element 2-2 is configured to face the rotor element 2-1. The suction electrode 14 is perpendicular to the surface.

There is a need to.

FIG. 5 is a diagram illustrating a connection between a flip-flop switch (hereinafter abbreviated as FF switch) and a coil, and a coil current waveform according to the stator 1 of FIG.
In FIG. 5A, the two-quadrant limited current control circuit 22 is for inputting a constant current I set regardless of whether the load electromotive force is positive or negative, with an AC or DC power supply 21 as an input. The commutation counterpart coil 12-1A and coil 12-1B are connected in parallel via FF switches 20-1A and 20-1B, respectively, to form an FF switch unit, and two FF switches that are turned on A constant current I is supplied from the limited current control circuit 22. The currents that flow through one of the commutation counterparts are temporarily merged and input as a constant current I to the next FF switch unit, which is repeated four times in total.
The FF switch uses a normal switch symbol in the figure, but actually, a semiconductor switch such as an IGBT is used and processing such as overvoltage suppression by a capacitor or the like is required.
FIG. 5B shows eight-phase current waveforms of the coils 12-1A and 12-1B to coils 12-4A and 12-4B. All the waveforms are one-sided trapezoidal waves that flow in the same direction at the peak value I. The waveforms are sequentially shifted by a phase difference of π / 4. Table 1 shows the operation order of the FF switches in FIG. In the table, ◯ indicates FF switch on, and X indicates FF switch off. The operation mode is based on the forward operation, and when the operation mode is shifted by 4 the brake mode is set.

取得した磁気エネルギと同量の力学的エネルギが出力し，吸引力は移動距離ａで割って

ここに
Ｂ_ｍ：磁束密度〔Ｔ〕
Ｅ_ｍ：空隙磁気エネルギ〔Ｊ〕
Ｆ_ｍ：発生吸引力〔Ｎ〕
Ｍ_ｏ：４π×１０^−７
ｇ：空隙長〔ｍ〕
ａ：歯鉄心進行方向円弧長〔ｍ〕

多相コイルの各相コイルが独立して吸引力発生の仕事をするのではなく各相コイルの全電流が同じ方向に相互結合して競合して一体化して吸引動作の仕事をする。吸引力は電流の約二乗に比例するため各相コイル電流を相互競合結合で一体化することで実効的重相数倍の吸引力を生じさせている。FIG. 6 is a basic configuration for explaining the operation according to FIG. Since the embodiment of FIG. 1 has a 6-pole quadruple-phase 4-face configuration, there are 12 facing surfaces of the tooth core and the suction pole, but the basic configuration of FIG. 6 is simplified to only one face and is straight for easy viewing. It has become. The magnetic path configuration is not complete, and it is assumed that there is a magnetic path indicated by an arrow 17 in the figure.
Referring to FIG. 6, in the state where the tip P of the suction electrode 14 is in the groove 11-5, the FF switches 20-1A to 20-4A are all on, and the FF switches 20-B to 20-4B are all off. The coil 12-1A to 12-4A is supplied with the supply current I from the two-quadrant limited current control circuit 22.
The flow coil is painted black. The magnetic flux of each tooth core is generated as follows.
-The gap of the tooth core 10-3 is a magnetic flux generated by the current of one coil of the coil 12-1A.
-The gap of the tooth core 10-4 is a magnetic flux generated by the current of two coils of the coils 12-1A and 12-2A.
The gap of the tooth core 10-5 is a magnetic flux generated by the current of three coils 12-1A, 12-2A, and 12-3A only at the part where the attracting pole 14 faces.
While the tip P of the attracting pole 14 crosses the tooth core 10-5, the air gap magnetic flux of the tooth cores 10-3 and 10-4 does not change, and only the magnetic flux of the tooth core 10-5 increases linearly.
Eventually, the increase in magnetic energy while the attracting pole 14 moves through the tooth core 10-5 is equal to the gap magnetic energy of the tooth core 10-5, and per attracting pole.

The same amount of mechanical energy as the acquired magnetic energy is output, and the attractive force is divided by the moving distance a.

Where B _m : Magnetic flux density [T]
E _m : Air gap magnetic energy [J]
F _m : Generated suction force [N]
_Mo : 4π × 10 ⁻⁷
g: Air gap length [m]
a: Tooth iron core traveling direction arc length [m]

Each phase coil of the multi-phase coil does not work for generating an attractive force independently, but all currents of the respective phase coils are mutually coupled in the same direction and compete and integrate to work. Since the attractive force is proportional to the square of the current, each phase coil current is integrated by mutual competitive coupling to generate an attractive force that is double the number of effective heavy phases.

Referring to FIG. 7, when the tip P of the suction pole 14 crosses the tooth core 10-5 and reaches the groove 11-6, the current of the coil 12-1A is commutated to the coil 12-1B. The coil 12-1A holds the magnetic energy based on the self-inductance of its own coil and the magnetic energy based on the mutual inductance of the coils 12-2A and 12-3A.
At the time of commutation, the current is redistributed to the coils 12-2A, 12-3A and the coil 12-1B of the commutation destination, and a part is generated with high efficiency on the power source side by generating a negative overvoltage. .

Referring to FIG. 8, a state after commutation from the coil 12-1A to the coil 12-1B is shown. This state is basically the same as the state in FIG. 6, and the tip P of the attracting pole 14 can continue to be driven by the tooth core 10-6.
Although the present embodiment has been described with respect to the quadruple phase embodiment, the same concept can be applied to the sixfold phase, the eightfold phase, and so on.

・ The motor, generator and linear motor according to the present invention do not require a rare metal magnet, the coil can be made of aluminum wire, and is free of resources.
-Stationary type, shaft type, in-wheel type, flat type, iso-shape free,
・ (Torque, Output / Weight) About one digit larger than conventional equipment,
・ Drive and brake are reversible with 90% efficiency without any special control.
Furthermore, the following new adaptations utilizing the features of the motor, generator and linear motor of the present invention are conceivable.
・ In-wheel motor for electric vehicles, shaft type motor,
・ Low-floor type shaft motor ・ Garless wind generator ・ Garless flat elevator motor ・ Wireless linear motor drive elevator ・ Forklift linear motor ・ Catapult propulsion and braking linear motor ・ Building seismic isolation mechanism ・ Fuel cell ship Shaft type motor and battery damper mechanism

１３，回転子支持部材
１４ １４−１，１４−２，１４−３ 吸引極
１５，固定子ネジ
１６ 回転子ネジ
１７，磁束
１８，１８−１，１８−２，１８−３，１８−４ 空隙

２１，交流電源或は直流電源
２２，二象限定電流制御回路
２３，固定子支持部材1. Stator 2. Rotor 3, bearing plate 4 rotating shaft 5, bearing 6, angular position detector 7 support substrate 7-1, 7-2, 7-3, 7'-1, 7'-2, 7'-3 ... ... bored holes 8, cooling fins 9, spacers

13, rotor support member 14 14-1, 14-2, 14-3 suction pole 15, stator screw 16 rotor screw 17, magnetic flux 18, 18-1, 18-2, 18-3, 18-4 gap

21, AC power source or DC power source 22, two-quadrant limited current control circuit 23, stator support member

Claims (1)

  A non-magnetic support substrate with a thick outer peripheral part and inner peripheral part and a thin part between them is cut out with a hole having the same shape as the cross-sectional shape of the tooth core, and each of the opposite surfaces of the tooth core is inserted into the hole. The center of the tooth core is fixed to the support substrate, and a plurality of two-phase coil sets of the A and B phases of the commutation partner are set on the tooth core with a phase angle of (π / coil From a plurality of stator elements which are stacked and shifted in stages, a rotor or a mover having opposite surfaces formed by a plurality of suction poles having opposite surfaces on both sides or both ends, and a two-letter limited current control circuit The constant current of A is switched to the A phase and B phase while the phase difference (π / the number of coil sets) is sequentially supplied to each coil set, and the leading end or the rear end of the attracting pole at the position where the magnetomotive force of each coil is concentrated Motors or generators configured with switches that act like Ta.

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