KR102344370B1 - Non-rotation Type AC Generator With High-elasticity Insulation Plate - Google Patents

Abstract

The present invention relates to a non-rotating alternator provided with a highly elastic insulating plate capable of generating alternating current with high efficiency without rotating a field or an armature. A non-rotating alternator according to the present invention is an alternator for generating an alternating current, comprising: a rod-shaped core member; A first hollow portion is formed in the central portion as the electric line is wound, and a second hollow portion is formed in the central portion as the electric line is wound and the field disposed on the outside of the core member through the first hollow portion, the first an armature disposed on the outside of the core member through a hollow portion, a pole piece is provided between the field and the armature, an insulating plate is disposed between the field and the pole piece, and between the armature and the pole piece, the insulating plate is made of PET material.

Description

Non-rotation Type AC Generator With High-elasticity Insulation Plate

The present invention relates to an alternator, and more particularly, to a non-rotating alternator capable of generating alternating current with high efficiency without rotating a field or an armature.

An electric generator mainly refers to a device that converts mechanical energy into electrical energy, and it is also referred to as a DC generator, a synchronous generator, and an induction generator according to its operation method or operating principle. A generator basically includes an armature for generating and outputting a current and a field for generating a magnetic field. A generator generates a current flow in the armature by rotating the armature with respect to the field or rotating the field with respect to the armature while forming a magnetic field by supplying DC power to the field. At this time, the method of rotating the armature is called a rotating armature type, and the method of rotating the field is called a rotating field type. In such a rotary generator, rotational driving of an armature or field is performed by a separate energy source. As the energy source, an appropriate one is employed depending on the intended use, but generally natural energy such as hydraulic power, wind power, and tidal power, or driving means such as a turbine, an engine, and a motor are used.

In general, direct current has the advantage of being able to easily store electricity, but has a disadvantage in that it is difficult to achieve high power including step-up. In contrast, alternating current has a very low storage property, but has an advantage in that it is easy to increase the voltage and increase the power. As one preferred application of the generator, there is a system configured to generate various AC power by rotating a field or an armature using a stored DC power source such as a battery or another AC power source. Such a power system or power conversion system is widely used as an emergency power means in industries requiring high power, such as hospitals or factories. In addition, such an electric power system may be very usefully employed in an electric vehicle that requires generation of various driving torques according to circumstances while using electricity as an energy source.

The above-described conventional generator requires rotational driving of an armature or a field. These structural features inevitably lead to an increase in the manufacturing cost of the generator along with the structural and mechanical complexity of the generator. In particular, since a large amount of energy loss occurs due to mechanical friction or the like when the armature or field rotates, there is a limit in increasing the power generation efficiency and power conversion efficiency of the generator.

Korean Patent Registration No. 10-1913746 (Name: AC power generator with adjustable frequency and voltage), Korean Patent Laid-Open No. 10-2014-0078732 (Name: Power Conversion Device), Japanese Patent Laid-Open No. 2000-353627 (Name) : Insulation converter transformer and switching power circuit), etc., have introduced devices or systems designed to perform power conversion without rotating the armature or field. Here, Patent Registration No. 10-1913746 is particularly noteworthy. In this patent, the frequency and power of the AC power obtained from the armature can be easily adjusted by repeatedly stacking the armature and the field alternately and controlling the pulse width of the DC power supplied to the field.

A main technical object of the present invention is to provide a non-rotating alternator capable of generating AC power without rotating an armature or a field.

Another technical object of the present invention is to provide a non-rotating alternator capable of generating AC power with high efficiency.

A non-rotating alternator according to the present invention for realizing the above object is an alternator for generating an alternating current, comprising: a rod-shaped core member; A first hollow portion is formed in the central portion as the electric line is wound, and a second hollow portion is formed in the central portion as the electric line is wound and the field disposed on the outside of the core member through the first hollow portion, the second An armature disposed outside the core member through a hollow portion, a pole piece is provided between the field and the armature, an insulating plate is disposed between the field and the pole piece, and between the armature and the pole piece, the insulating plate It is composed of PET,
A hollow is provided in the central portion of the core member along the longitudinal direction,
The field and the armature are provided in plurality, and the field and the armature are alternately arranged,
The plurality of armatures are connected in series with each other,
The plurality of fields are divided into a first field group and a second field group,
The first field group and the second field group are driven alternately to form a first magnetic field and a second magnetic field, respectively;
The first magnetic field and the second magnetic field are characterized in that they have opposite directions,
Among the n fields, n/2 fields constitute a first field group, and the remaining n/2 fields constitute a second field group, wherein the odd-numbered field constitutes the first field group, and the even-th field Fields constitute the second field group, the first field group and the second field group are each driven synchronously, and the first field group and the second field group are driven alternately, so that the fields as a whole are in opposite directions There is provided a non-rotating alternator with a highly elastic insulating plate, characterized in that it forms a first magnetic field and a second magnetic field of.

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In addition, an insulating material is further disposed between the core member and the first or second hollow part.

In addition, the insulating plate is characterized in that it is composed of one of polycarbonate (PC) and polymethacrylate (PMMA).

In addition, the core member is characterized in that the heat treatment is performed while being composed of pure iron.

In addition, the pole piece is characterized in that the heat treatment is performed while being composed of pure iron.

In addition, in the heat treatment, the core member or the pole piece is put in a kiln together with the solid fuel, the solid fuel is burned to heat the core member or the pole piece to a certain temperature or higher, and the core member or the pole piece is naturally combined with the burned solid fuel. It is characterized in that it is carried out by cooling.

In addition, the solid fuel is characterized in that the white coal.

In addition, the core member or the pole piece is characterized in that the surface treatment with oil.

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In addition, the first or second field group is characterized in that it is connected in series with respect to the field current input, respectively.

In addition, the first or second field group is characterized in that each is connected in parallel with respect to the field current input.

According to the present invention having the above configuration, a desired alternating current is generated from the armature by stacking and arranging the field and the armature with respect to the core member and appropriately supplying the field current to the field. Accordingly, in the present invention, since a mechanical structure for rotationally driving a field or an armature is unnecessary, the structure of the alternator is greatly simplified.

In addition, in the present invention, since the alternator is configured as a non-rotating type, energy loss due to friction or the like generated in the course of rotation of a field or armature is minimized. Accordingly, the power generation efficiency of the generator is greatly improved.

The drawings attached to this specification are for efficiently explaining the technical configuration of the present invention. It should be understood that some components in the drawings may be simplified or exaggerated for an efficient understanding of the present invention.
1 is a block diagram showing an alternator according to a first embodiment of the present invention.
2 is a block diagram showing an alternator according to a second embodiment of the present invention.
3 is a front view schematically showing an external shape of a non-rotating alternator according to a third embodiment of the present invention;
Fig. 4 is an exploded perspective view of the alternator shown in Fig. 3;
5 is a graph showing the demagnetization time characteristics according to the cooling time of pure iron.
6 is a graph showing a cooling characteristic curve according to time in the case of heat treatment of the core member 40 and the pole piece 80 in the present invention.
7 is a waveform diagram showing an example of the field current supplied to the alternator and the alternating current output from the alternator accordingly.
8 is a front view schematically showing an external shape of a non-rotating alternator according to a fourth embodiment of the present invention;
9 is a waveform diagram showing another example of the field current supplied to the alternator.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. However, the examples described below are illustrative of preferred embodiments of the present invention, and the examples of these examples are not intended to limit the scope of the present invention. Those skilled in the art will readily understand that the present invention can be implemented with various modifications without departing from the technical spirit thereof.

First, the basic concept of the present invention will be described. As described above, the basic principle of the generator is to generate a flow of induced current in the armature by changing the magnetic field (magnetic flux) applied to the armature. Here, as a method of changing the magnetic flux to the armature, it is applied to the armature by externally supplying DC power to the magnetic field to generate a magnetic field (magnetic flux), and changing the relative position between the magnetic field and the armature, that is, rotating the magnetic field or the armature. It changes the magnetic field (magnetic flux). This method is currently employed in most generators, and as described above, as the magnetic field or the armature is driven to rotate, the structure of the generator becomes complicated and there is a problem in that the power generation efficiency is lowered.

Another way to change the magnetic flux in the armature is to change the field current supplied to the field to change the magnetic field (magnetic flux) itself generated by the field. In this method, if an appropriate method for changing the field current is provided, it is possible to prevent the conventional problems, that is, the complexity of the generator structure and the decrease in efficiency due to rotational driving of the armature or field. In the present invention, this method is referred to as a non-rotating type as a concept relative to the conventional rotating armature type or rotating field type, and a generator using this method is referred to as a non-rotating type generator.

1 is a block diagram showing an alternator according to a first embodiment of the present invention. In the figure, the alternator has a field 10 and an armature 20 . The field 10 and the armature 20 are each formed by winding conductive lines 11 and 21 coated with an insulating material. Here, as the conductive wire, for example, a polyurethane copper wire, a polyester copper wire, a polyamide imide (PAI) copper wire, a polyester imide copper wire, etc. may be preferably employed. The field 10 is provided with an input terminal 12 for supplying a field current, and the armature 20 is provided with an output terminal 22 for drawing an induced current, that is, a current generated in the armature 20, the field ( 10) and the turns ratio of the armature 20 will be appropriately set according to the field power and the output power.

The field 10 and the armature 20 are formed in a cylindrical shape with hollow parts 13 and 23 in the central part as a whole. At this time, the shapes of the field 10 and the armature 20 are not limited to specific ones. For example, the field 10 and the armature 20 may be configured in an elliptical shape or a polygonal shape. The field 10 and the armature 20 are arranged in a vertical direction or a horizontal direction so that the hollow parts 13 and 23 are matched with each other. Preferably, the magnetic field 10 and the armature 20 are disposed in a position that is as close as possible to each other within a range in which leakage current or sparks do not occur between them. The arrangement positions of the field 10 and the armature 20 are not specified. For example, when the field 10 and the armature 20 are arranged in a vertical direction, the field 10 may be arranged above or below the armature 20 . In addition, when the field 10 and the armature 20 are arranged in the horizontal direction, the field 10 may be arranged on the left or right side of the armature 20 . The field 10 is suitably disposed on one side of the armature 20 .

In the above configuration, the field current supplied to the input terminal 12 of the field 10 has a constant period and is appropriately changed. Preferably, the field current in the first direction and the field current in the second direction in the opposite direction are alternately supplied to the input terminal 12 at regular time intervals. When a field current flows through the line 11 of the field 10 , a magnetic field is formed in a direction perpendicular to the traveling direction of the line corresponding to the winding direction of the line 11 . When the magnetic field generated by the field current in the first direction is referred to as the first magnetic field and the magnetic field generated by the field current in the second direction is referred to as the second magnetic field, the first magnetic field and the second magnetic field are related to the first and second field currents. Correspondingly, the magnetic field directions will be opposite to each other. The direction in which the magnetic field is formed can be defined by Ampere's right hand screw rules.

The magnetic field generated in the field 10 is linked in a vertical direction with respect to the line 21 of the armature 20 . In addition, current flow is generated in the line 21 of the armature 20 in a predetermined direction corresponding to the direction of the magnetic field and the winding direction of the line 21 . At this time, the magnitude of the induced current will correspond to the strength of the magnetic field and its change amount. Whenever the field current in the first direction and the field current in the second direction alternate, the first or second magnetic field is interlinked in the armature line 20, and the flow of the induced current alternates between the first and second field currents. Correspondingly, its direction is changed. The frequency of the AC power drawn from the output terminal 22 of the armature 20 is determined by the alternating period of the field current.

In the above configuration, the field 10 and the armature 20 are fixedly arranged in adjacent positions, and AC power can be generated and output from the armature 20 by changing the field current supplied to the field 10 . do.

2 is a block diagram showing an alternator according to a second embodiment of the present invention. In addition, in FIG. 2, parts substantially identical to those of FIG. 1 are given the same reference numerals, and detailed descriptions thereof are omitted.

In the embodiment of FIG. 1 , since the field current supplied to the field 10 must be changed in order to obtain a desired AC power from the armature 20 , a separate circuit unit for varying the field current is required. In this embodiment, while the first field 10 - 1 is disposed on one side of the armature 20 , the second field 10 - 2 is disposed on the other side of the armature 20 . As in the above embodiment, the first field 10-1 and the second field 10-2 are disposed as close to the armature 20 as possible. The first and second fields 10 - 1 and 10 - 2 have substantially the same configuration as the field 10 of FIG. 1 . However, in this embodiment, the first field 10-1 and the second field 10-2 have magnetic fields in opposite directions, for example, the first field 10-1 generates a first magnetic field and a second field (10-2) is configured to generate the second magnetic field. To this end, in the first field 10-1 and the second field 10-2, the winding direction of the line 11 is opposite to each other. In addition, in another preferred embodiment, the first field 10-1 and the second field 10-2 have substantially the same configuration including the winding direction of the line 11, and the first field 10-1 ), the current direction of the field current supplied to the input terminal 12-1 and the field current supplied to the input terminal 12-2 of the second field 10-2 are set to be opposite to each other. As the current source for supplying the field current to the first and second fields 10-1. 10-2, the same or different ones may be employed.

In the embodiment of FIG. 1 , the direction of the field current supplied to the field 10 is alternately changed with a constant period, but in this embodiment, the first field 10-1 and the second field 10-2 are driven alternately. That is, the supply of the field current to the first field 10-1 and the supply of the field current to the second field 10-2 are alternately performed. A first magnetic field is generated by driving the first field 10-1, and a second magnetic field is generated by driving the second field 10-2. In addition, the first and second magnetic fields generate an induced current flow in the direction opposite to each other in the armature 20 , and an alternating current is output from the output terminal 21 of the armature 20 . The operation of the armature 20 is substantially the same as the embodiment of FIG. 1 .

In this embodiment, the first and second fields 10-1. 10-2 are selectively driven without changing the current supplied to the field 10 in a direction opposite to the armature 20. First and second magnetic fields are generated. Accordingly, the present embodiment can further simplify the configuration of the alternator compared to the embodiment of FIG. 1 .

3 is a front view schematically showing an external shape of a non-rotating alternator according to a third embodiment of the present invention, and FIG. 4 is an exploded perspective view thereof. In FIG. 3 , the alternator includes a base member 30 and a rod-shaped core member 40 coupled to a central portion of the base member 30 . The outer peripheral surface of the core member 40 has a shape corresponding to the shape of the hollow parts 13 and 23 of the field fields 10-1 and 10-2 and the armatures 20-1, 20-2, 20-3, and the core The member 40, the fields 10-1, 10-2, and the armatures 20-1, 20-2, 20-3 are configured to be disposed as closely as possible as a whole. And the core member 40 is preferably provided with a hollow 41 in the longitudinal direction. The hollow 41 is to prevent improper accumulation of thermal energy in the core member 40 by allowing air to smoothly flow through the inner side of the core member 40 .

In the core member 40, the fields 10-1 and 10-2 and the armatures 20-1, 20-2, and 20-3 are alternately inserted along the outer peripheral surface thereof to be laminated or combined. In this embodiment, as in FIG. 2 , the first armature 20-11 is disposed inside the first and second field fields 10-1 and 10-2, that is, in the space between them, and in addition to this, the first and second A second armature 20-2 and a third armature 20-3 are disposed outside the second fields 10-1 and 10-2, respectively.

The first to third armatures 20-1 to 20-3 have substantially the same configuration and are coupled in series with each other to act as one armature as a whole. That is, in all of the first to third armatures 20-1 to 20-3, the line 11 is wound in the same direction, and one output end of the first armature 20-1 is connected to the second through the connecting line 201 . While being electrically coupled to the other output terminal of the armature 20-2, the other output terminal of the first armature 20-1 is electrically coupled to one output terminal of the third armature 20-3 through the connection line 202. More specifically, the first to third armatures 20-1 to 20-3 are configured and coupled to generate an induced current flow in the same direction for an electric field in the same direction. And one output terminal 22a of the second armature 20-2 and the other output terminal 22b of the third armature 20-3 constitute an output terminal of the alternator.

Meanwhile, in another preferred embodiment of the present invention, insulating materials 130 and 230 are coated on the inner peripheral surfaces of the fields 10-1 and 10-2 and the armatures 20-1 to 20-3, respectively. The insulating materials 130 and 230 are formed between the magnetic fields 10-1 and 10-2 and the armatures 20-1 to 20-3 and the core member 40 inserted through the hollow portions 13 and 23 thereof. It is adopted for more reliable insulation.

A magnetic pole piece 80 is provided between the field 10-1. 10-2 and the armature 20-1 to 20-3, respectively. In addition, preferably, the pole pieces 80 are also installed on the uppermost and lowermost sides of the armature or field, that is, the upper side of the second armature 20-2 and the lower side of the third armature 20-3 in this embodiment, respectively. this is provided In addition, an insulating plate 90 is provided between the pole piece 80 and the field 10-1. 10-2 and between the pole piece 80 and the armature 20-1 to 20-3, respectively. At this time, preferably, the cross-sectional shape and size of the pole piece 80 are set to be the same as those of the field 10-1. 10-2 and the armature 20-1 to 20-3. In addition, although not specifically shown in the drawings, the cross-sectional shape and size of the insulating plate 90 are set larger than those of the field 10-1. 10-2 and the armature 20-1 to 20-3 for stable insulation.

The material of the insulating plate 90 is not limited to a specific one. In order to most effectively apply the magnetic field generated by the field (10-1. 10-2) to the armature (20-1 to 20-3), the field (10-1. 10-2) and the armature (20-1 to 20) It is necessary to reduce the separation distance of -3) to a minimum or preferably to make them close together. The insulating plate 90 is between the magnetic field 10-1. 10-2 or the armature 20-1 to 20-3 and the pole piece 80, or the field 10-1. 10-2 and the armature 20 It prevents leakage current or sparks between -1 to 20-3) so that the field (10-1. 10-2) and the armature (20-1 to 20-3) can be as close as possible .

In addition, in a preferred embodiment of the present invention, a material having a high elastic modulus and excellent impact resistance, such as polyethylene terephthalate (PET), is employed as the material of the insulating plate 90 . In addition, the insulating plate 90 may be made of polycarbonate (PC), polymethacrylate (PMMA), etc. in addition to polyethylene terephthalate (PET), and may have a thickness of about 0.1 to 1.0 mm. However, the material and thickness are not limited thereto. As will be described later, the core member 40 and the pole piece 80 provide a magnetic path of the magnetic field generated in the field 10-1. 10-2, and in the field 10-1. 10-2 Let the generated magnetic field circulate while linking the armatures 20-1 to 20-3 as a whole. The first and second magnetic fields 10 - 1 and 10 - 2 respectively generate a first magnetic field and a second magnetic field having opposite directions to each other. Accordingly, when the first and second magnetic fields circulate through the core member 40 and the pole piece 80 , the magnetization and demagnetization of the core member 40 and the pole piece 80 are alternately and repeatedly performed. In addition, such magnetization and demagnetization may give an impact to the core member 40 , in particular, the pole piece 80 , thereby causing minute vibration or vibration in the pole piece 80 . When vibration or the like occurs in the core member 40 and the pole piece 80, instantaneous deformation or distortion occurs in the magnetic path that circulates through it, resulting in a change in the magnetic field linked to the armatures 20-1 to 20-3 As a result, an undesirable change may occur in the induced current generated in the armatures 20-1 to 20-3. The insulating plate 90 prevents the flow of alternating current generated through the armatures 20-1 to 20-3 from being unnecessarily distorted by minimizing the vibration or vibration of the pole piece 80 with high elasticity.

As described above, the core member 40 and the pole piece 80 are provided for the smooth flow of the magnetic field generated by the fields 10-1 and 10-2. As the material of the core member 40 and/or the pole piece 80 , a ferromagnetic material, preferably silicon steel having high magnetic permeability and low coercive force may be employed. However, silicon steel has relatively low electrical conductivity and the internal resistance value is easily increased by light or heat applied from the outside. When a magnetic path is formed through the core member 40 and the magnetic pole 80 , the flow of current may be generated by itself in response to the fluctuation of the magnetic field. At this time, the electricity of the core member 40 and the magnetic pole piece 80 Heat is generated in inverse proportion to conductivity. That is, there is a problem in that the magnetic energy generated in the fields 10-1 and 10-2 is lost as thermal energy.

In another preferred embodiment of the present invention, pure iron, more preferably heat-treated pure iron is employed as the material of the core member 40 and/or the pole piece 80 . Pure iron has high magnetic permeability and excellent electrical conductivity, but has relatively high coercive force. Since the first and second magnetic fields generated by the first and second magnetic fields 10-1 and 10-2 are alternately applied to the core member 40 and the pole piece 80, demagnetization is as fast as possible for the material of the material. It is required to have a firing time, ie, a low coercive force. According to the research conducted by the present inventors, when pure iron is heated to a certain temperature or higher and then cooled slowly, the demagnetization time is shortened in response to the cooling time. 5 is a graph showing the demagnetization time characteristics according to the cooling time of pure iron. As a result of the study, it was confirmed that the demagnetization time could be shortened to 1/450 (sec) or less if the temperature of pure iron heated to a certain temperature was gradually cooled for a sufficient time for more than 10 hours. In addition, if the cooling time of pure iron is delayed, an additional effect of improving magnetic permeability and electrical conductivity is obtained.

In the present invention, first, the core member 40 and the pole piece 80 are manufactured using pure iron, and then heat treatment is performed. The heat treatment is performed using, for example, a solid fuel such as black coal or white coal, preferably white coal. That is, during the heat treatment, the core member 40 and the pole piece 80 are put in a kiln together with the white coal, and the white coal is burned to heat the core member 40 and the pole piece 80 to 1000 to 1300 degrees or more. And by leaving the core member 40 and the pole piece 80 together at room temperature as it is, the white coal is naturally burned and extinguished, and then the core member 40 and the pole piece 80 are naturally cooled together with the white coal. do. In this way, the temperature of the core member 40 and the pole piece 80 is gradually lowered in the process of burning and extinguishing the white coal, and thereafter, the core member 40 and the pole piece 80 are heated to room temperature by the latent heat of the white coal. It takes a considerable amount of time to cool down. 6 is a graph showing cooling characteristic curves according to time of the core member 40 and the pole piece 80 that are heat-treated through the above-described method. And after the heat treatment is finished, impurities such as white charcoal are removed from the core member 40 and the pole piece 80, and finally, rust prevention treatment is performed with oil or the like.

3 and 4 , when assembling the alternator, the core member 40 is first fastened to the base member 30 . Then, while inserting the pole piece 80 and the insulating plate 90 on the outside of the core member 40, sequentially stacking the armatures 20-1 to 20-3 and the field fields 10-1 and 10-2 alternately, , and then the cover 60 and the fastening member 70 are coupled. And finally, by performing a connection between the first to third armatures 20-1 to 20-3 using the connecting wires 201 and 202, the alternator is completed.

The alternator is provided with first and second input terminals 12-1 and 12-2 for supplying a field current, and output terminals 22a and 22b for outputting alternating current. In the case of driving the present alternator, the first and second field currents are alternately supplied through the first and second input terminals 12-1 and 12-2 to form the first field 10-1 and the second field current. The field 10-2 is driven selectively and alternately. 7 is a waveform diagram showing an example of the field current supplied to the alternator and the alternating current outputted from the alternator accordingly. In FIG. 7, A is the first field residual supplied to the first input terminal 12-1, B is an example of the second field current supplied to the second input terminal 12-2, O is the output terminal of the alternator An example of the output alternating current output through (22a, 22b) is shown. The waveform of the output AC current O in FIG. 7 shows one typical example of the AC output output from the alternator, and the output waveform is the current magnitude and pulse width of the first and second field currents A and B. It will be transformed into various forms depending on

In the alternator, a DC source such as a battery may be employed to supply the field currents A and B, and a plurality of DC sources may be employed to respectively supply the first and second field currents. As described in the embodiment of FIG. 2 , the frequency of the output AC current may be adjusted by adjusting the alternating period of the first field current A and the second field current B, and the first field current and the second field current B may be adjusted. The output AC power can be adjusted by adjusting the duty ratio of the current. To the first and second input terminals 21-1. 12-2, switching means such as an insulated gate bipolar transistor (IGBT) for alternately supplying the first and second field currents A and B and adjusting the period thereof may be provided, and a PWM (Pulse Width Modulation) control means may be provided to control the pulse width of the field current. The supply and control of the first and second field currents through the switching means and the PWM control means are described in detail in Korean Patent Registration No. 10-1913746.

8 is a front view schematically showing an external shape of a non-rotating alternator according to a fourth embodiment of the present invention. In this embodiment, the core member 40 is fastened to the base member 30, and the core member 40 has a plurality of fields 10-1 to 10-n and a plurality of armatures 20-0 to 20-n. The insulating plate 90 and the pole piece 80 are alternately laminated and bonded. At this time, the armatures 20-0 to 20-n are configured and coupled to generate an induced current in the same direction with respect to the same magnetic field as in FIG. 3 .

In contrast, in the fields 10-1 to 10-n, n/2 fields among n fields constitute a first field group, and the remaining n/2 fields constitute a second field group. Preferably, the odd field (10-1. 10-3, ..., 10-(n-1)) constitutes the first field group, and the even field (10-2. 10-4, ..., 10-n) ) constitutes the second field group. In this case, the configuration of each field group can be performed by appropriately setting the winding direction of the lines constituting each field as described above, or by appropriately setting the connection method of the field current supplied to these fields. The first field group and the second field group are driven synchronously, respectively, and the first field group and the second field group are driven alternately. A first magnetic field and a second magnetic field are formed. Fields constituting the first field group and the second field group may be wired in various ways. Input terminals of the first field group and the second field group may be connected in series with each other, so that the first and second field groups may be connected in series with respect to one field current input, respectively. Also, each of the first field group and the second field group may be connected in parallel with respect to one field current input. In addition, a plurality of current sources are provided to supply a field current to the fields 10-1 to 10-n, and the first or second field group is divided into a plurality of sub field groups corresponding to the current sources, and each The sub field groups may be coupled in series or parallel to the current source respectively. The wiring method of the fields 10-1 to 10-n and the number of current sources for this are not specified, and will be appropriately selected according to the amount of output power to be generated through the alternator.

In this embodiment, a plurality of fields 10-1 to 10-n and armatures 20-0 to 20-n are provided, so that various AC power can be generated as needed. And, since other parts are substantially the same as in the above-described embodiment, the same reference numerals are attached to the same parts as in the embodiment, and detailed descriptions thereof are omitted.

An embodiment according to the present invention has been described above. However, the present invention is not limited to the above embodiment and can be implemented with various modifications. For example, in the above embodiment, it has been described that the fields 10-1 to 10-n and the armatures 20-0 to 20-n are sequentially alternately installed one by one. However, the present invention can be practiced with modifications in various ways, for example, by alternately installing two continuous fields and one armature.

In addition, the configuration and coupling structure of the base member 30, the cover 60, and the fastening member 70 employed to configure the alternator in the above embodiment are for explaining one structural example constituting the generator, The present invention is not limited to these examples of structures and configurations. The present invention can provide its technical effects through the configuration and coupling structure of the core member 40 and the magnetic field 10 and the armature 20 coupled thereto, and the structure and configuration employed for their installation are essential It will be readily understood by those skilled in the art that this is not the case.

In addition, the embodiment of FIG. 3 can be equally applied to the embodiments of FIGS. 1 and 2 . That is, in the embodiments of FIGS. 1 and 2 , the field 10 and the armature 20 are disposed while being inserted into the core member 40 , and between the field 10 and the armature 20 , the magnetic pole piece 80 and An insulating plate 90 may be disposed.

In addition, in the waveform diagram of FIG. 7 , the field currents A and B supplied to the respective input terminals 12-1 and 12-2 of the field 10-1. 10-2 were configured in the form of a single square wave pulse. However, the field currents A and B may be configured as a plurality of pulse trains, that is, a square wave having a constant frequency as shown in FIG. 9 . As described above, when the field currents A and B are composed of a plurality of pulse trains and the amount of change is increased, the first generated in the field 10-1. 10-2 corresponding to the change of the field currents A and B is increased. And the change in the second magnetic field, that is, the change in magnetic flux becomes larger, so that the output of the alternator becomes higher can be expected.

10: field, 20: armature,
30: a base member, 40: a core member,
60: cover, 70: fastening member,
80: a pole piece, 90: an insulating plate.

Claims (14)

An alternator for generating an alternating current, comprising:
and a rod-shaped core member.
A first hollow portion is formed in the central portion along with the winding of the electric line, and a field disposed on the outside of the core member through the first hollow portion;
A second hollow portion is formed in the central portion along with the winding of the electric line, and an armature disposed on the outside of the core member through the second hollow portion,
A pole piece is provided between the field and the armature,
An insulating plate is disposed between the field and the pole piece and between the armature and the pole piece,
The insulating plate is made of PET material,
A hollow is provided in the central portion of the core member along the longitudinal direction,
The field and the armature are provided in plurality, and the field and the armature are alternately arranged,
The plurality of armatures are connected in series with each other,
The plurality of fields are divided into a first field group and a second field group,
The first field group and the second field group are driven alternately to form a first magnetic field and a second magnetic field, respectively;
The first magnetic field and the second magnetic field are characterized in that they have opposite directions,
Among the n fields, n/2 fields constitute a first field group, and the remaining n/2 fields constitute a second field group, wherein the odd-numbered field constitutes the first field group, and the even-th field Fields constitute the second field group, the first field group and the second field group are each driven synchronously, and the first field group and the second field group are driven alternately, so that the fields as a whole are in opposite directions A non-rotating alternator with a highly elastic insulating plate, characterized in that it forms a first magnetic field and a second magnetic field of delete According to claim 1,
A non-rotating alternator with a high elasticity insulating plate, characterized in that an insulating material is additionally disposed between the core member and the first or second hollow part. According to claim 1,
A non-rotating alternator with a high elasticity insulating plate, characterized in that the insulating plate is made of one of polycarbonate (PC) and polymethacrylate (PMMA). According to claim 1,
The non-rotating alternator provided with a high-elasticity insulating plate, characterized in that the core member is made of pure iron and heat-treated. According to claim 1,
The non-rotating alternator with a high elasticity insulating plate, characterized in that the pole piece is made of pure iron and heat treatment is performed. 7. The method according to claim 5 or 6,
In the heat treatment, the core member or the pole piece is put in a kiln together with the solid fuel, the solid fuel is burned to heat the core member or the pole piece to a certain temperature or higher, and the core member or the pole piece is naturally cooled together with the burned solid fuel. A non-rotating alternator with a highly elastic insulating plate, characterized in that it is implemented. 8. The method of claim 7,
The solid fuel is a non-rotating alternator with a high elasticity insulating plate, characterized in that the white coal. According to claim 1,
The non-rotating alternator with a high elasticity insulating plate, characterized in that the core member or the pole piece is surface-treated with oil. delete delete delete According to claim 1,
The first or second field group is a non-rotating alternator with a high elastic insulating plate, characterized in that each is connected in series with respect to the field current input. According to claim 1,
The first or second field group is a non-rotating alternator with a high elastic insulating plate, characterized in that each connected in parallel with respect to the field current input.

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