JP2007181394A - Electrical equipment - Google Patents

Abstract

An object of the present invention is to provide a power generator that can stably supply electric energy without destroying the natural environment and that can be made compact.
A primary winding that generates a traveling magnetic field in addition to an alternating magnetic field, and a secondary winding that is arranged so as to interlink with the alternating magnetic field and the traveling magnetic field generated by the primary winding are provided. A primary winding generates the magnetic field by intermittent direct current or alternating current, and a secondary winding is arranged to interlink with the magnetic field in order to induce an electromotive force. An iron core composed of a first iron core part and a second iron core part magnetically coupled to each other; and a plurality of slots formed between the iron core parts or an annular groove formed between the iron core parts. The primary and secondary windings are arranged in slots or annular grooves.
[Selection figure] None

Description

  The present invention relates to an electric device, and more particularly to an electric device (electromotive force induction device) as an electric energy source for supplying induced electric energy to, for example, a converter, a load circuit, and the like.

Conventionally, this type of power generator includes the following.
a) A hydroelectric generator that generates electrical energy by using the falling energy of water at a high place.
b) A thermal power generator that generates electrical energy using the thermal energy of fuels such as coal, heavy oil and combustible gas.
c) A nuclear power generation device that generates electric energy by using the energy released by the reaction in the fission process.
d) A solar power generation device that generates electric energy using solar thermal energy or solar energy.
e) A wind power generator that uses wind energy to generate electrical energy.
f) Chemical power generation devices, so-called batteries, that generate electrical energy using chemical energy based on the occurrence of a chemical reaction that gives a product with a low energy content.

However, each of the power generation devices described above has the following problems. Hydroelectric power generators have a natural environment due to dam construction, thermal power generators have a natural environment based on air pollution due to exhaust gases such as carbon dioxide, NO _x , SO _x , and nuclear power generators have a nuclear environment. In addition to the natural environment caused by accidents and nuclear waste, batteries also have problems in the natural environment due to the disposal of heavy metals such as mercury, nickel, and cadmium used in chemical reactions.

  On the other hand, solar power generators and wind power generators do not adversely affect the natural environment, but solar power generators limit the number of days that can be used annually, and wind power generators because of the intermittent nature of wind energy. There is a problem in the stable supply of electric energy.

  An electrical device (electromotive force induction device) according to the present invention includes a primary winding that generates a traveling magnetic field in addition to an alternating magnetic field, and an alternating magnetic field and a traveling magnetic field generated by the primary winding in order to achieve the above-described object. And having secondary windings arranged so as to interlink.

  According to this configuration, the secondary winding has an electromotive force due to the alternating magnetic field and an electromotive force due to the traveling magnetic field due to the alternating magnetic field and the traveling magnetic field generated by the alternating magnetic flux generated by the excitation current flowing through the primary winding. Be guided. The electromotive force induced in the secondary winding based on the alternating magnetic field and the electromotive force induced based on the rotating magnetic field combine to induce an electromotive force in the secondary winding.

  Therefore, the electromotive force can be stably induced, and further downsizing is possible. You may comprise so that at least one part of the electromotive force induced | guided | derived to the said secondary winding may be supplied to the said primary winding.

The electrical device of the present invention includes a primary winding that generates a traveling magnetic field in addition to an alternating magnetic field, and a secondary winding that is arranged so as to be linked to the alternating magnetic field and the traveling magnetic field generated by the primary winding. An electrical device,
The primary winding generates an alternating magnetic field and a traveling magnetic field by intermittent direct current or alternating current,
The secondary winding is arranged to interlink with an alternating magnetic field and a traveling magnetic field generated by the primary winding in order to induce an electromotive force;
The apparatus further includes an iron core composed of a first iron core part and a second iron core part magnetically coupled to each other, and a plurality of slots formed in the first iron core part or the second iron core part, Or an annular groove formed between the first and second iron cores, wherein the primary winding and the secondary winding are each constituted by a single-phase winding or a multi-phase winding, and the primary A winding and a secondary winding are paired and arranged in the slot or the annular groove. The device may not have a braking winding. Both the primary winding and the secondary winding may be composed of (i) a single-phase main winding and an auxiliary winding with a capacitor, or (ii) a multi-phase winding. It may be configured. The electrical device includes a primary winding constituted by a multiphase winding, and a secondary winding arranged adjacent to the primary winding and constituted by a multiphase winding. May be paired with the secondary winding and disposed in the slot or the annular groove.

  In the electric device, the iron core is disposed in an annular cylindrical core part, a cylindrical core part that is disposed in a hollow part of the annular cylindrical core part, and is magnetically coupled to each other, and the annular cylindrical core part or It is formed of a plurality of slots formed in the cylindrical iron core portion and spaced apart in the circumferential direction, and the primary winding and the secondary winding may be disposed in the slots. . In such an electric device, each of the plurality of slots may be formed along the axial direction between the annular cylindrical core portion and the cylindrical core portion, and may be formed circumferentially at equal intervals. . Further, the annular cylindrical core part and the cylindrical core part may be fitted so as not to rotate. The electrical device includes an annular cylindrical core and a cylindrical core disposed in the form of a cylindrical rotor, and one of the annular cylindrical core and the cylindrical core is a rotating shaft. May be arranged so as to be rotatable with respect to the other. At least one of the annular cylindrical core part and the cylindrical core part has cut grooves formed along the axial direction at equal intervals on at least one surface between these core parts. The protruding part of the other iron core part formed between the slots may be inserted into the cut groove formed in the iron core part. The cylindrical iron core portion and the cylindrical iron core portion are formed by laminating circular thin steel plates, and the primary winding and the secondary winding are each composed of a three-phase winding, and Y You may arrange | position by the three-phase symmetrical winding of connection or (DELTA) connection.

  The electric device includes a primary winding composed of a multiphase winding and a secondary winding composed of a multiphase winding, and the primary winding and the secondary winding are two-phase or multiphase. It may be arranged in the slot with a symmetrical winding. The primary winding and the secondary winding may each be composed of multiphase windings arranged in the form of Y-connection or Δ-connection. The primary winding may be provided with multiphase alternating current including intermittent direct current, single phase alternating current, two phase alternating current, or three phase alternating current. The primary winding and the secondary winding may be arranged in the same magnetic circuit. The traveling magnetic field may be a rotating magnetic field. The primary winding may be a multiphase symmetrical winding having a predetermined number of phases.

  In the electric device, the primary winding may be a multiphase symmetrical winding including a three-phase symmetrical winding and a multipolar winding including a four-pole winding. The secondary winding may be a symmetric winding having the same number of phases as the primary winding. In the electric device, the cycle of the polyphase alternating current may be shortened to increase the number of alternating magnetic fields and the number of rotating magnetic fields.

  In the electric device, the voltage / current of the electromotive force induced in the secondary winding may be adjusted according to the turns ratio of the primary winding and the secondary winding. In the electric device of the present invention, at least a part of the electromotive force induced in the secondary winding may be supplied to the primary winding.

  The present invention includes the use of the electrical device to improve induction efficiency from a secondary winding, and a method for improving induction efficiency from a secondary winding, the primary winding of the electrical device In addition, a method for improving induction efficiency for supplying intermittent direct current or alternating current is also included.

  The alternating magnetic field generated by the primary winding and the traveling magnetic field including the rotating magnetic field can be generated from a multiphase alternating current including a direct current, a single-phase alternating current, a two-phase alternating current, or a three-phase alternating current. By the way, assuming that the traveling magnetic field is, for example, a rotating magnetic field, the alternating number of alternating magnetic fields generated by the multiphase alternating current including the direct current, single-phase alternating current, two-phase alternating current, or three-phase alternating current and the rotational speed of the rotating magnetic field are, In the case of, the cycle of direct current flowing intermittently is shortened, and in the case of single-phase alternating current, two-phase alternating current and polyphase alternating current, the period of alternating current is shortened and the frequency is increased (increased). The electromotive force induced in the winding increases. Further, if the primary winding is configured to be a multi-phase winding including three phases and a multi-pole winding including four-pole winding, the number of phases of the multi-phase winding and the number of poles of the multi-pole winding are increased. As the electromotive force induced in the secondary winding increases. In this case, the secondary winding is preferably a symmetric winding having the same number of phases as the primary winding. The same can be said when the traveling magnetic field is different from the rotating magnetic field.

  Moreover, it is preferable that the voltage / current of the electromotive force induced in the secondary winding is adjusted by the turn ratio of the primary winding and the secondary winding. The primary winding and the secondary winding are disposed in the same magnetic circuit, and the corresponding winding portions of the primary winding and the secondary winding are close to the iron core constituting the same magnetic circuit. Are preferably arranged.

  It is to be noted that there is provided a rotor having a rotating shaft at the rotating shaft core of the rotating magnetic field and having the primary and secondary windings as stators and driven to rotate based on a current induced by the rotating magnetic field. Alternatively, the primary winding and the secondary winding are used as a rotor having a rotating shaft at the rotating shaft core of the rotating magnetic field, and a stator for rotating the rotor based on the current induced by the rotating magnetic field is provided. If comprised in this way, it can be used also as an induction motor. Further, if the primary winding and the secondary winding are set as the primary side and a secondary side that is moved relative to the primary side based on the current induced by the traveling magnetic field is provided, a linear It can also be used as a motor.

  According to the present invention, an electromotive force can be induced stably. Therefore, it is possible to supply an induced electromotive force in place of a conventional battery, etc., and it is extremely useful in all electric appliances including a consumer use in which a motor is driven by the electromotive force. .

  Other objects of the present invention will become apparent from the detailed description given below. However, while the detailed description and specific examples describe the most preferred embodiment, various changes and modifications within the spirit and scope of the invention will be apparent to those skilled in the art from the detailed description. This is only an example.

  In the present invention, the electromotive force can be stably induced, and further downsizing is possible.

  Next, specific embodiments of the electric device according to the present invention will be described sequentially with reference to the drawings.

[First embodiment-three-phase AC two-pole concentration (all sections) winding]
1 and 2, an iron core 10 has a cylindrical iron core portion 10A and an annular cylindrical shape in which the cylindrical iron core portion 10A is fitted into the hollow portion and is magnetically coupled to the cylindrical iron core portion 10A. It is comprised from the iron core part 10B. The cylindrical iron core portion 10A is formed by laminating circular thin steel plates, and six slots 11 are formed on the outer peripheral surface side at equal intervals in the circumferential direction and along the axial direction. In addition, the annular cylindrical core portion 10B is similarly formed by laminating annular thin steel plates, and the cylindrical core portion 10A is arranged on the inner peripheral surface side at equal intervals in the circumferential direction and along the axial direction thereof. Six cut grooves 13 into which the tip end sides of the projecting portions 12 between the slots 11 are inserted are formed. Thus, the cylindrical core part 10A is fitted into the hollow part of the annular cylindrical core part 10B while the protruding part 12 of the cylindrical core part 10A is fitted along the cut groove 13 of the annular cylindrical core 10B. The iron core 10 is assembled.

  A U1-phase winding 15A, which is a primary winding 15 connected to a three-phase AC power source 14 as shown in FIG. A V1-phase winding 15B and a W1-phase winding 15C are arranged and fitted as shown in FIG. 3B with three-phase symmetric windings of Y connection. Further, the U2 phase winding 16A, the V2 phase winding 16B and the W2 phase winding 16C, which are the secondary windings 16 shown in FIG. Are arranged and inserted as shown in FIG. 3 (c). 2 and FIGS. 3B and 3C, symbols (1) to (6) indicate slot numbers.

Thus, when balanced three-phase alternating currents i _a1 , i _b1 , and _ic1 are passed from the three-phase alternating current power supply 14 to the U1 phase winding 15A, the V1 phase winding 15B, and the W1 phase winding 15C, which are the primary windings 15, as excitation currents. As shown in FIG. 4, each alternating magnetic field 17 and one cycle of the balanced three-phase alternating _currents i _a1 , i _b1 , and _ic1 are generated by the alternating magnetic flux generated by these balanced three-phase alternating _currents i _a1 , i _b1 , and _ic 1. A rotating magnetic field 18 which is a kind of traveling magnetic field that rotates once in the clockwise direction is generated. On the other hand, the U2 phase winding 16A, the V2 phase winding 16B and the W2 phase winding 16C, which are the secondary windings 16, are linked to the alternating magnetic field 17 and the rotating magnetic field 18, and the U2 phase windings 16A and V2 phase are interlinked. An electromotive force is induced in each of the winding 16B and the W2-phase winding 16C by the alternating magnetic field 17 and the rotating magnetic field 18, and as shown in FIGS. 3 (a) and 3 (c), the balanced three-phase alternating current i _a2 , i _b2 and _ic2 flow.

  As described above, the secondary winding 16 is added with the alternating magnetic field 17 by the primary winding 15 and the induced electromotive force by the rotating magnetic field 18 to efficiently induce the electromotive force.

In this embodiment, the case of two pole concentrated (all nodes) winding is described. However, the number of slots 11 'is doubled and the slots 11' are shown in FIGS. 5 (a), (b), (c). For example, the U1-phase winding 15A ′, which is the primary winding 15 ′, the V1-phase winding 15B ′, and the W1-phase winding 15C ′, and the U2-phase winding, which is the secondary winding 16 ′, are lap windings as shown in FIG. If the wire 16A ′, the V2 phase winding 16B ′ and the W2 phase winding 16C ′ are arranged, a 4-pole concentrated (all nodes) winding is obtained, and a 4-pole rotating magnetic field 18 ′ is generated as shown in FIG. One clockwise rotation is performed during two cycles of balanced three-phase alternating _currents i _a1 , i _b1 , and _ic 1. Similarly, a rotating magnetic field of 6 poles or more can be obtained. If the rotating magnetic field is made multipolar in this way, the electromotive force induced in the secondary windings 16 and 16 'becomes larger as the number of multipoles is increased.

  In the present embodiment, the concentrated (all-node) winding case has been described. However, in the case of the distributed (all-node) winding, for example, in the case of a quadrupole distribution (all-node winding), 36 slots 11 ″ are shown in FIG. ), (B), and (c), for example, a primary winding 15 ″ of U1 phase winding 15A ″, V1 phase winding 15B ″ and W1 phase winding 15C ″ which are lap windings, A secondary winding 16 ″, that is, a U2-phase winding 16A ″, a V2-phase winding 16B ″, and a W2-phase winding 16C ″ may be disposed.

  5 (a), (b), (c) and FIGS. 7 (a), (b), (c) are denoted by the same reference numerals (1) to (12) and (1) to (36). The slot number is shown.

  [Modification] Next, the case where the above-described electric device is used as an induction motor will be described by taking the electric device of the three-phase AC quadrupole distribution (all sections) winding as an example.

  8 and 9, an annular cylindrical iron core 21 is provided coaxially in a cylindrical stator frame 20 having upper and lower walls and fixed to the stator frame 20. On the inner peripheral surface side of the annular cylindrical iron core 21, 36 slots 22 are formed at equal intervals in the circumferential direction and along the axial direction thereof. A primary winding 23 is arranged on the back side in these slots 22, and a secondary winding 24 is arranged on the front side. The primary winding 23 and the secondary winding 24 are disposed by lap winding.

  By the way, in the hollow part in the annular cylindrical iron core 21, the holes 25 and 26 provided in the upper and lower walls of the stator frame 20 are positioned on the axis of the rotating magnetic field via the bearings 27 and 28, respectively. A cylindrical conductor 30 having a rotating shaft 29 that is rotatably supported is provided. Thus, the induction magnetic field based on the current induced on the surface side of the cylindrical conductor 30 by the rotating magnetic field generated by the primary winding 23 with the annular cylindrical iron core 21 side as a stator and the cylindrical conductor 30 side as a rotor. Thus, the columnar conductor 30 as a rotor is rotated by an electromagnetic force generated by the rotating magnetic field and the induction magnetic field. Needless to say, by supplying power to the primary winding 23, the electromotive force is efficiently induced in the secondary winding 24 as described above.

  Further, as shown in FIGS. 10 and 11, an annular cylindrical iron core 21 ′ fixed coaxially to the lower wall of the stator frame 20 ′ is provided in the cylindrical stator frame 20 ′. An annular cylindrical conductor 30 ′ that is loosely fitted in an annular cylindrical space between the outer peripheral surface of the annular cylindrical core 21 ′ and the inner peripheral surface of the stator frame 20 ′ may be provided. . In this case, except that the slot 22 'is formed on the outer peripheral surface side of the annular cylindrical core 21', the rotating shaft 29 'of the annular cylindrical conductor 30' rotates in the hollow portion of the annular cylindrical core 21 '. It is the same as described above, such as being positioned on the magnetic field axis.

  In addition, although the case of the three-phase AC quadrupole distribution (all sections) winding has been described as an example, the above-described three-phase AC two-pole concentrated (all sections) winding and four-pole concentrated (all sections) may be used. Needless to say. Further, the annular cylindrical iron cores 21, 21 ′ side is described as a stator, and the cylindrical conductor 30, the annular cylindrical conductor 30 ′ side is described as a rotor. The annular cylindrical iron cores 21, 21 ′ may be used as a rotor, and the cylindrical conductor 30 and the annular cylindrical conductor 30 ′ may be used as a stator.

  In the present embodiment, the primary windings 15, 15 ', 15 ", 23 are arranged on the back side in the slots 11, 11', 11", 22, 22 ', and the secondary windings 16, 16 on the front side. ', 16 ", 24 are arranged, but conversely, the primary windings 15, 15', 15", 23 are arranged on the front side and the secondary windings 16, 16 ', 16 ", 24 are arranged on the rear side. The primary windings 15, 15 ′, 15 ″, 23 and the secondary windings 16, 16 ′, 16 ″, 24 may be arranged without distinction on the front side and the back side. Although the case of the nominal winding has been described, it may be a three-phase symmetric winding of △ connection, and further, the case of a lap winding may be described, but it may be a wave winding or a chain winding, and the case of a full-pitch winding will be described. However, short winding may be used, in other words, any winding method may be used.

  In this embodiment, the iron cores 10, 10 ′, 10 ″, 21 and 21 ′ are made by laminating thin steel plates, but they may be wound or formed in a lump, and the ferrite is sintered. In other words, any material may be used as long as it is made of a magnetic material.

[Second Example-Single-phase AC Capacitor Phase Separation Type Quadrupole Distribution (All Sections) Winding]
12 (a), 12 (b), and 12 (c), the iron core 40 has a cylindrical iron core portion 40A and the cylindrical iron core portion 40A fitted into the hollow portion thereof in the same manner as in the first embodiment. It is composed of a cylindrical core part 40A and an annular cylindrical core part 40B magnetically coupled to each other. As shown in FIG. 13, the rear side in the 16 slots 41 formed at equal intervals in the circumferential direction on the outer peripheral surface side of the cylindrical core part 40A and along the axial direction thereof is simply as shown in FIG. A main winding 43A of a single phase winding which is a primary winding 43 connected to a phase AC power source 42 and an auxiliary winding 43B having a capacitor 44 are illustrated with two-phase symmetrical winding, lap winding and full-pitch winding. As shown in the figure, the main winding 43A and the auxiliary winding 43B are arranged and inserted so that there is an electrical phase angle of 90 °. Further, on the front side in the slot 41, the main winding 45A of the single-phase winding which is the secondary winding 45 shown in FIG. 13 and the auxiliary winding 45B having the capacitor 46 are similarly two-phase symmetric. Both the main winding 45A and the auxiliary winding 45B are arranged and inserted so as to have an electrical phase angle of 90 ° by winding, overlapping winding and full-pitch winding.

Thus, when a single-phase alternating current i _{1 is} passed from the single-phase alternating current power supply 42 to the primary winding 43 as an excitation power supply, each alternating magnetic field is generated by the alternating magnetic flux generated by the respective currents i _1a and i _1b flowing in the main winding 43A and the auxiliary winding 43B. Then, a rotating magnetic field that rotates _once in one cycle of the single-phase alternating current i ₁ is generated by the phase difference between the currents i _1a and i _1b between the main winding 43A and the auxiliary winding 43B. On the other hand, these main winding 45A and auxiliary winding 45B of the alternating magnetic field and a 45 secondary winding by the rotating magnetic field single-phase winding is interlinked, it is induced electromotive force phase AC i ₂ flows. Thus, by supplying power to the primary winding 43, an electromotive force is efficiently induced in the secondary winding 45 as in the case of the first embodiment.

  Also in this embodiment, as in the case of the first embodiment, the primary winding 43 and the secondary winding 45 are placed in the slot 41, conversely the primary winding 43 is on the near side, and the secondary winding. 45 may be arranged on the back side, and may be arranged on the front side and the back side without distinction. In addition, although the case of lap winding is described, it may be wave winding or chain winding, and the case of full-pitch winding is described, but short winding may be used, in other words, any winding method may be used. Also good. In addition, the iron core 40 may be made by laminating thin steel plates in the same manner as in the first embodiment, may be made by winding, may be made in a lump shape, and may be made by further sintering the ferrite. In other words, any material may be used as long as it is composed of a magnetic material.

  By the way, also in the single phase AC capacitor phase separation type, as described in the modification in the first embodiment, the electric device can be used as an induction motor by adopting the same configuration.

  Note that the rotating magnetic field generated by providing a difference in reactance between the main winding and the auxiliary winding without using a capacitor, or by a two-phase AC having a phase angle of 90 ° is the same as the single-phase AC capacitor phase-dividing type described above. It goes without saying that an alternating magnetic field and a rotating magnetic field are generated, and electric power is efficiently induced in the secondary winding by supplying power to the primary winding, and can also be used as an induction motor.

[Third embodiment-single-phase AC bear coil type 2-pole winding]
In FIG. 14, an iron core 50 is fitted into a U-shaped iron core portion 50A and a hollow portion between both side portions of the U-shaped iron core portion 50A and is magnetically coupled to the U-shaped iron core portion 50A. And an X-shaped iron core 50B. The U-shaped iron core portion 50A and the X-shaped iron core portion 50B are formed by laminating U-shaped and X-shaped thin steel plates, and are formed on the inner sides of both ends of the U-shaped iron core portion 50A. Each has two cut grooves 51 into which the tip side of the X-shaped iron core 50B is inserted. In this way, the X-shaped iron core 50B is inserted into the hollow portion between both side portions of the U-shaped core 50A while the respective leading ends of the X-shaped core 50B are fitted along the cut grooves 51 of the U-shaped core 50A. The iron core 50 is assembled by fitting the part 50B.

  A primary winding 53 connected to a single-phase AC power source 52 is wound around an intermediate side portion of the U-shaped iron core portion 50A as shown in FIG. Further, the first and second windings 54A and 54B, which are the secondary windings 54 shown in FIG. 15, are wound around the X-shaped iron core portion 50B so as to cross each other. Further, the X-shaped iron core portion 50B is shown with a pair of copper coiled coils 55, 56, for example, so that a rotating magnetic field rotating counterclockwise is generated in the X-shaped iron core portion 50B in FIG. It is arranged like this.

Thus, when a single-phase AC power i ₁ is supplied from the single-phase AC power supply 52 to the primary winding 53, the alternating magnetic field generated by the single-phase AC power i ₁ and the magnetic flux generated by the pair of coiled coils 55 and 56 are delayed. In combination, a rotating magnetic field that rotates once during one cycle of the single-phase alternating current i ₁ is generated. On the other hand, the first and second windings 54A and 54B, which are the secondary winding 54, are linked by the alternating magnetic field and the rotating magnetic field, the electromotive force is induced, and single-phase alternating currents i _2a and i _2b flow. Thus, as in the case of the first and second embodiments, the electromotive force is efficiently induced in the secondary winding 54 by supplying power to the primary winding 53.

  In the present embodiment, the case of the iron core 50 constituted by the U-shaped iron core portion 50A and the X-shaped iron core portion 50B has been described. However, as shown in FIG. The character-shaped iron core portion 50A ′ and a circular (column) -shaped iron core portion 50B ′ disposed in a loosely fitted state in the hollow portion between both side portions of the deformed U-shaped iron core portion 50A ′ may be configured. . The deformed U-shaped core part 50A 'and the circular (columnar) core part 50B' are formed by laminating deformed U-shaped and circular thin steel plates, and the intermediate side part of the deformed U-shaped core part 50A '. The primary winding 53 'is wound around the first and second windings 54A' and 54B ', which are the secondary winding 54', crossing each other in the circular (columnar) core portion 50B '. It is the same as in the case described above. In addition, the code | symbol 57 is a space | gap, and the codes | symbols 58 and 59 are bear coils.

  Incidentally, as shown in FIG. 17, the secondary windings 54 and 54 'are composed of first to third windings 54A ", 54B" and 54C ", and the first winding 54C" is U-shaped. The second and third windings 54A ″ and 54B ″ are wound on or below the primary windings 53 and 53 ′ wound around the intermediate side portion of the iron core 50A or the deformed U-shaped iron core 50A ′. Is wound around the X-shaped core part 50B or the circular (columnar) core part 50B ′ in the same manner as the first and second windings 54A, 54B, 54A ′, 54B ′ described above, An electromotive force based on the alternating magnetic field generated by the primary windings 53 and 53 ′ is efficiently induced in the first winding 54C ″.

[Modification]
Next, taking as an example an electric device having an iron core 50 'composed of the above-described deformed U-shaped iron core portion 50A' and circular (columnar) iron core portion 50B ', this electric device is also used as an induction motor. explain.

  In FIG. 18, an iron core 60 is formed by laminating deformed U-shaped thin steel plates in the same manner as described above, and the above-described circular shape ( In place of the column-like iron core portion 50B ′, the rotating shaft 61 has a rotating shaft 61 that is arranged in a vertical state with respect to the drawing and that is rotatably supported at both ends via bearings (not shown), for example. On the other hand, a coaxial cylindrical conductor 62 is arranged in a loosely fitted state. Further, a primary winding 63 is wound around the intermediate side portion of the deformed U-shaped iron core 60, and the columnar conductor 62 is rotatably wound around the columnar conductor 62. The first and second windings 64A and 64B, which are the windings 64, are arranged so as to cross each other. Thus, with the iron core 60 side as a stator and the cylindrical conductor 62 side as a rotor, these rotating magnetic fields are generated by an induced magnetic field based on a current induced on the surface side of the cylindrical conductor 62 by a rotating magnetic field generated by the primary winding 63. The cylindrical conductor 62 is rotated by an electromagnetic force generated by the induced magnetic field and the induction magnetic field in the same manner as in the above-described modified example, and by supplying power to the primary winding 63, the electromotive force is efficiently converted into the secondary winding. The guidance to the line 64 is the same as described above. As shown in FIG. 17, the secondary winding 64 is composed of first to third windings, and the first winding is wound on or below the primary winding 63, and the second and second windings are wound. If the three windings are arranged so as to intersect so as to wind the cylindrical conductor 62 in the same manner as the first and second windings 64A and 64B, the alternating magnetic field generated by the primary winding 63 is similarly applied. The original electromotive force is efficiently induced in the first winding. Others are the same as described above.

  In this embodiment, the iron cores 50, 50 'and 60 are formed by laminating thin steel plates. However, similar to the first and second embodiments, the iron cores 50, 50' and 60 may be formed in a lump shape or sintered with ferrite. In other words, any material may be used as long as it is composed of a magnetic material.

[Fourth embodiment-DC 2-pole concentrated (all sections) winding]
In FIG. 19, the iron core 70 is composed of two disk-like iron core portions 70 </ b> A and 70 </ b> B made, for example, by sintering ferrite. As shown in FIG. 20, these disk-shaped iron core portions 70A, 70B are formed with annular grooves 71A, (71B) coaxially on one surface side, and through holes 72A, ( 72B) is formed. By the way, in the annular groove 71A of one disk-shaped core part 70A, as shown in FIG. 21, it is connected to the DC power source 74 via a switch circuit 73 composed of _six SCR ₁ to SCR _6. The three windings 75A, 75B, 75C, which are the primary windings 75, are arranged as shown in FIG. 22 in a lap winding and a full-pitch winding, and are made of resin or the like with respect to the annular groove 71A. Glued and fixed. Further, in the annular groove 71B of the other disk-shaped iron core portion 70B, the three windings 76A, 76B, and 76C that are the secondary windings 76 shown in FIG. The node winding is arranged as shown in FIG. 22, and is bonded and fixed to the annular groove 71B by a resin or the like. In this manner, the two disk-shaped cores 70A and 70B are mutually sandwiched so that the windings 75A, 75B, 75C, 76A, 76B, and 76C are sandwiched and overlapped with each other. The iron core 70 is assembled by inserting bolts 77 through the through holes 72 </ b> A and 72 </ b> B so as to face each other and fastening with the nuts 78.

In this way, the three windings 75A, 75B, and 75C, which are the primary windings 75, are turned on and off sequentially by the on / off action of the SCR _{1 to} SCR ₆ in the switch circuit 73 as an excitation power source from the DC power source 74. _{a1, i b1,} the flow _{i c1,} and the alternating magnetic field by an alternating magnetic flux generated by these direct currents _{i a1, i b1, i c1} , by slightly DC current _{i a1, i b1, i c1} to sequentially flow A rotating magnetic field that rotates once is generated. On the other hand, three windings 76A, 76B, and 76C, which are secondary windings 76, are linked to the alternating magnetic field and the rotating magnetic field, and each of the windings 76A, 76B, and 76C has an electromotive force generated by the alternating magnetic field and the rotating magnetic field. Are induced out of phase with each other, and direct currents i _a2 , i _b2 , and _{ic 2} flow intermittently. In this way, an electromotive force is efficiently induced in the secondary winding 76 by supplying power to the primary winding 75.

[Modification]
Next, the case where this electric device is used as an induction motor will be described by taking the above-described electric device with concentrated DC two poles (all sections) as an example.

  23 and 24, at the lower end side of the cylindrical stator frame 80 having the upper wall, the primary winding 81 and the secondary winding 82 arranged in an annular shape as described above are vertically arranged on the upper surface. A circular lower wall portion 83 is provided as an iron core which is provided by being laminated and fixed, for example, by sintering ferrite. The primary winding 81 and the secondary winding 82 are each composed of three windings as described above, and are arranged in a DC two-pole concentrated winding.

  By the way, the hollow portions of the annular primary winding 81 and the secondary winding 82 are provided on the upper wall and the circular lower wall portion 83 of the stator frame 80 and positioned at the axis of the rotating magnetic field. A disc-shaped conductor 89 having a rotation shaft 88 rotatably supported in the holes 84 and 85 via bearings 86 and 87 is disposed between the upper wall of the stator frame 80 and the primary winding 81. Is provided. Thus, the primary winding 81 and the secondary winding 82 side are used as a stator, and the disk-shaped conductor 89 side is used as a rotor. The disk-shaped conductor 89 is rotated in the same manner as in the above-described modification, and the electromotive force is efficiently induced in the secondary winding 82 by supplying power to the primary winding 81 as described above. .

  In the present embodiment, the primary winding 81 and the secondary winding 82 side are the stator and the disk-shaped conductor 89 side is the rotor, but the primary winding 81 and the secondary winding 82 side are the rotor. The disk-shaped conductor 89 side may be a stator.

  In this embodiment, the primary windings 75 and 81 are disposed on the upper side and the secondary windings 76 and 82 are disposed on the lower side. However, the primary windings 75 and 81 are disposed on the lower side and the secondary windings 76 and 82 are disposed on the upper side. You may arrange in. In addition, the lap winding has been described in the same manner as each of the above-described embodiments, but it may be a wave winding or a chain winding, and the case of a full-pitch winding may be a short-pitch winding, that is, a distribution. Any winding method including winding may be used.

  In this embodiment, the iron core 70 and the circular lower wall portion 83 are made by sintering ferrite, but any other material may be used as long as it is made of a magnetic material.

[Fifth embodiment-three-phase AC single-phase (all sections) winding]
In FIG. 25, an iron core 90 has a first iron core portion 90A in which slots 91 are formed at equal intervals in the left-right direction on the lower surface side and in a direction perpendicular to the drawing, and at equal intervals in the left-right direction on the upper surface side. A second core part 90B in which a cut groove 93 into which the leading end side of the projecting part 92 is inserted between the slots 91 of the first iron core part 90A is perpendicularly coupled to the drawing and is magnetically coupled to each other. Is made up of. The first and second iron core portions 90A and 90B are made, for example, by laminating thin steel plates or by sintering ferrite. Thus, the iron core 90 is assembled by fitting the protruding portion 92 of the first iron core portion 90A into the cut groove 93 of the second iron core portion 90B.

  On the back side in the slot 91A of the first iron core portion 90A, a U1-phase winding 94A, a V1-phase winding 94B and a W1-phase are primary windings 94 connected to a three-phase AC power source (not shown). The windings 94C are sequentially arranged and inserted as shown in FIG. Further, on the front side in the slot 91, the U2-phase winding 95A, the V2-phase winding 95B, and the W2-phase winding 95C, which are the secondary windings 95 shown in FIG. It is arranged and inserted. Note that reference numerals (1) to (10) in FIGS. 25, 26 (a) and 26 (b) indicate slot numbers.

Thus, the balanced three-phase AC currents i _a1 , i _b1 , and _ic1 are supplied as excitation currents from the three-phase AC power source (not shown) to the U1-phase winding 94A, the V1-phase winding 94B, and the W1-phase winding 94C as the primary winding 94. As shown in FIG. 25, each alternating magnetic field 96 and a traveling magnetic field 97 traveling in the direction of the arrow shown in FIG. 25 are generated by the alternating magnetic flux generated by these balanced three-phase alternating currents i _a1 , i _b1 , and _{ic 1} . Arise. Note that the alternating magnetic field 96 and the like in FIG. 25 indicate when the current i _a1 is flowing through the U1-phase winding 94A out of the balanced three-layer AC currents i _a1 , i _b1 , and _ic1 . On the other hand, each of the alternating magnetic field 96 and the traveling magnetic field 97 causes the U2-phase winding 95A, the V2-phase winding 95B, and the W2-phase winding 95C, which are the secondary windings 95, to supply power to the primary winding 94 as described above. By supplying, an electromotive force is efficiently induced, and balanced three-phase alternating currents i _a2 , i _b2 , and _ic2 flow as shown in FIG.

[Modification]
Next, the case where the above-described three-phase AC single-phase (all-section) electric device is used as an induction motor as a so-called linear motor will be described.

  In FIG. 27, the iron core 100 is formed as a primary side by laminating thin steel plates or by sintering ferrite in the same manner as described above, and the lower surface side of the iron core 100 is equally spaced in the left-right direction. A slot 101 is formed. As described above, the U1-phase winding 102A, the V1-phase winding 102B, and the W1-phase winding 102C, which are the primary windings 102, are sequentially arranged and inserted in the back side in the slot 101. Similarly, the U2-phase winding 103A, the V2-phase winding 103B, and the W2-phase winding 103C, which are the secondary windings 103, are sequentially arranged and fitted on the front side in the slot 101.

  On the other hand, a conductor plate 104 as a secondary side is disposed on the lower side of the iron core 100 along the iron core 100. Thus, if the iron core 100 side is the fixed side and the conductor plate 104 side is the movable side, the current induced to the surface side of the conductor plate 104 by the traveling magnetic field generated in the direction of the arrow shown by the primary winding 102 is generated. The conductive plate 104 is moved in the direction of the arrow by an electromagnetic force generated by the traveling magnetic field and the induced magnetic field by the induced magnetic field. In addition, by supplying electric power to the primary winding 102, an electromotive force is efficiently induced in the secondary winding 103, and the like, as in the case described above.

  In the above description, the iron core 100 side is the fixed side and the conductor plate 104 side is the movable side, but the iron core 100 side may be the movable side and the conductor plate 104 may be the fixed side. In the present embodiment, the case of full-pitch winding with single-phase winding of three-phase alternating current has been described, but two-phase winding, lap winding, wave winding or chain winding, and even short-pitch winding may be used. Any winding method may be used.

  In this embodiment, the primary windings 94 and 102 are arranged on the back side in the slots 91 and 101, and the secondary windings 95 and 103 are arranged on the front side. However, the primary windings 94 and 102 are arranged on the front side. The secondary windings 95 and 103 may be arranged on the back side, and may be arranged on the front side and the back side without distinction.

  In this embodiment, the iron cores 90 and 100 are made by laminating thin steel plates or by sintering ferrite, but any iron cores 90 and 100 may be used as long as they are made of a magnetic material.

  In each of the embodiments and modifications described above, at least a part of the electromotive force induced in the secondary winding may be supplied to the primary winding. Furthermore, you may utilize for an induction motor and a linear motor. In addition, if the period of the current flowing in the primary winding is shortened to increase the number of alternating magnetic fields and the number of rotations of the rotating magnetic field, and the number of phases of the multiphase winding increases, Needless to say, the power becomes large. Further, the traveling magnetic field includes a moving magnetic field that reversibly moves in the front-rear direction in addition to the rotating magnetic field described above.

  As described above, it is obvious that the present invention can be modified in various ways. Such modifications do not depart from the spirit and scope of the present invention, and all such variations and modifications apparent to those skilled in the art are intended to be included within the scope of the claims.

  According to the present invention, it is possible to supply electric energy in place of the conventional hydroelectric generator, thermal power generator, nuclear power generator, solar power generator, wind power generator, battery, etc. It is extremely useful in all electric equipment including consumer use such as driving a motor.

FIG. 1 is a cross-sectional perspective view for explaining a first embodiment of the electric apparatus according to the present invention. FIG. 2 is a cross-sectional view for explaining a first embodiment of the electric apparatus according to the present invention. FIGS. 3A, 3B and 3C are a circuit diagram and a winding diagram for explaining the first embodiment of the electric apparatus according to the present invention. FIG. 4 is a diagram illustrating generation of a rotating magnetic field for explaining a first embodiment of the electric apparatus according to the present invention. 5 (a), 5 (b) and 5 (c) are cross-sectional views corresponding to FIG. 2 of the first embodiment of the first embodiment of the electric device according to the present invention and FIGS. 3 (b) and 3 (c). It is a corresponding winding diagram. FIG. 6 is a diagram showing the generation of the rotating magnetic field of the first embodiment in the first embodiment of the electric apparatus according to the present invention. 7 (a), (b) and (c) are cross-sectional views corresponding to FIG. 2 of the second embodiment of the first embodiment of the electric device according to the present invention and FIGS. 3 (b) and (c). It is a corresponding winding diagram. FIG. 8 is a longitudinal sectional view of a first modified example in which the electric apparatus of the first embodiment is also used as an induction motor. FIG. 9 is a cross-sectional view of a first modification when the electric apparatus of the first embodiment is also used as an induction motor. FIG. 10 is a longitudinal cross-sectional view of a second modification when the electric apparatus of the first embodiment is also used as an induction motor. FIG. 11 is a cross-sectional view of a second modification when the electric apparatus of the first embodiment is also used as an induction motor. 12 (a), 12 (b), and 12 (c) correspond to a cross-sectional view corresponding to FIG. 2 and FIGS. 3 (b) and 3 (c) for explaining a second embodiment of the electric device according to the present invention. FIG. FIG. 13 is a circuit diagram for explaining a second embodiment of the electric apparatus according to the present invention. FIG. 14 is a plan external view for explaining a third embodiment of the electric apparatus according to the present invention. FIG. 15 is a circuit diagram for explaining a third embodiment of the electric apparatus according to the present invention. FIG. 16 is a plan external view of a first mode example in the third embodiment of the electric device according to the present invention. FIG. 17 is a circuit diagram of a second mode example in the third embodiment of the electric apparatus according to the present invention. FIG. 18 is a plan external view as a modification corresponding to the first mode example in the case where the electric device of the third embodiment is also used as an induction motor. FIG. 19 is a longitudinal sectional view for explaining a fourth embodiment of the electric apparatus according to the present invention. FIG. 20 is a perspective view of an iron core for explaining a fourth embodiment of the electric apparatus according to the present invention. FIG. 21 is a circuit diagram for explaining a fourth embodiment of the electric apparatus according to the present invention. FIG. 22 is a winding layout diagram for explaining a fourth embodiment of the electric apparatus according to the present invention. FIG. 23 is a longitudinal sectional view for explaining a modification in the case where the electric device of the fourth embodiment is also used as an induction motor. 24 is a cross-sectional view taken along line A-A ′ in FIG. 23. FIG. 25 is a cross-sectional view corresponding to FIG. 2 for explaining a fifth embodiment of the electric device according to the present invention. FIGS. 26A and 26B are winding diagrams corresponding to FIGS. 3B and 3C for explaining a fifth embodiment of the electric device according to the present invention. FIG. 27 is a longitudinal sectional view when the electric device of the fifth embodiment is also used as a linear motor.

Explanation of symbols

10, 10 ', 10 ", 21, 21', 40, 50, 50 ', 60, 70, 90, 100 Iron core 11, 11', 11", 22, 22 ', 41, 91, 101 Slot 12, 92 Protrusion 13, 51, 93 Cut groove 14 Three-phase AC power supply 15, 15 ', 15 ", 23, 43, 53, 53', 63, 75, 81, 94, 102 Primary winding 16, 16 ', 16 ”, 24, 45, 54, 64, 76, 82, 95, 103 Secondary winding 17, 17 ′, 96 Alternating magnetic field 18, 18 ′, 97 Rotating magnetic field 20, 20 ′, 80 Stator frame 25, 26, 84, 85 Holes 27, 28, 86, 87 Bearings 29, 29 ', 61, 88 Rotating shaft 30, 62 Cylindrical conductor 30' Toroidal cylindrical conductor 42, 52 Single-layer AC power supply 44, 46 Capacitors 55, 56, 58,59 Bear coil 57 Air gap 73 Switch circuit 74 DC power supply 77 Volt 78 Nut 83 Circular columnar lower wall part 89 Disc-shaped conductor 104 Conductor plate

Claims (23)

An electrical device comprising a primary winding that generates a traveling magnetic field in addition to an alternating magnetic field, and a secondary winding that is arranged to interlink with the alternating magnetic field and the traveling magnetic field generated by the primary winding,
The primary winding generates an alternating magnetic field and a traveling magnetic field by intermittent direct current or alternating current,
The secondary winding is arranged to interlink with an alternating magnetic field and a traveling magnetic field generated by the primary winding in order to induce an electromotive force;
The apparatus further includes an iron core composed of a first iron core part and a second iron core part magnetically coupled to each other, and a plurality of slots formed in the first iron core part or the second iron core part, Or an annular groove formed between the first and second iron cores, wherein the primary winding and the secondary winding are each constituted by a single-phase winding or a multi-phase winding, and the primary An electrical device in which a winding and a secondary winding are paired and disposed in the slot or annular groove.   Both the primary and secondary windings are (i) composed of a single-phase main winding and an auxiliary winding with a capacitor, or (ii) composed of multi-phase windings. The electrical device according to claim 1.   A primary winding composed of a multi-phase winding, and a secondary winding arranged adjacent to the primary winding and composed of a multi-phase winding, the primary winding being a secondary winding The electric device according to claim 1, wherein the electric device is disposed in a slot or an annular groove in a pair.   An iron core is disposed in an annular cylindrical core part, a cylindrical core part disposed in a hollow part of the annular cylindrical core part, and magnetically coupled to each other, and the annular cylindrical core part or the cylindrical core part 2. The electric device according to claim 1, wherein the first winding and the second winding are disposed in the slot, and the first winding and the second winding are disposed in the slot. apparatus.   5. The electrical device according to claim 4, wherein each of the plurality of slots is formed along the axial direction between the annular cylindrical core portion and the cylindrical core portion, and is formed in the circumferential direction at equal intervals.   The electric device according to claim 4, wherein the annular cylindrical core part and the cylindrical core part are fitted so as not to rotate.   A primary winding composed of a multi-phase winding and a secondary winding composed of a multi-phase winding, wherein the primary winding and the secondary winding are two-phase or multi-phase symmetrical windings. The electrical device of claim 1 disposed in the slot.   An annular cylindrical core part and a cylindrical core part arranged in the form of a cylindrical rotor, and one of the annular cylindrical core part and the cylindrical core part is centered on the rotation axis The electric device according to claim 4, wherein the electric device is rotatably arranged with respect to the other.   At least one of the annular cylindrical core part and the cylindrical core part has cut grooves formed along the axial direction at equal intervals on at least one surface between these core parts. The electric device according to claim 4, wherein a protruding portion of the other iron core portion formed between the slots is fitted into the cut groove formed in the iron core portion.   2. The electric device according to claim 1, wherein the primary winding and the secondary winding are each constituted by a multiphase winding arranged in a Y-connection or a Δ-connection.   The cylindrical iron core part and the cylindrical iron core part are formed by laminating circular thin steel plates, and the primary winding and the secondary winding are each composed of a three-phase winding, and Y The electrical device according to claim 4, wherein the electrical device is arranged in a three-phase symmetrical winding of connection or Δ connection.   The electrical device according to claim 1, wherein a multiphase alternating current including intermittent direct current, single phase alternating current, two phase alternating current, or three phase alternating current is applied to the primary winding.   The electric device according to claim 1, wherein the primary winding and the secondary winding are disposed in the same magnetic circuit.   The electric device according to claim 1, wherein the traveling magnetic field is a rotating magnetic field.   2. The electrical device according to claim 1, wherein the primary winding is a multiphase symmetrical winding having a predetermined number of phases.   The electrical device according to claim 1 or 14, wherein the primary winding is a multiphase symmetrical winding including a three-phase symmetrical winding and a multipolar winding including a four-pole winding.   The electric device according to claim 16, wherein the secondary winding is a symmetrical winding having the same number of phases as the primary winding.   The electrical device according to claim 16, wherein the number of alternating magnetic fields and the number of rotating magnetic fields are increased by shortening the cycle of the polyphase alternating current.   The electric device according to claim 1, wherein the voltage / current of the electromotive force induced in the secondary winding is adjusted according to the turns ratio of the primary winding and the secondary winding.   The electric device according to claim 1, wherein at least part of the electromotive force induced in the secondary winding is supplied to the primary winding.   The electrical device according to claim 1, wherein the electrical device does not have a braking winding.   Use of an electrical device according to claim 1 for improving the induction efficiency from the secondary winding.   A method for improving induction efficiency from a secondary winding, wherein the induction efficiency is increased by supplying intermittent direct current or alternating current to the primary winding of the electric device according to claim 1.

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