JP2003017335A - Capacitor built-in coil system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a capacitor built-in coil that incorporates a capacitor function for accumulating charge in a coil for electromagnetic circuits, and a control system for controlling the capacitor built-in coil. SOLUTION: As a coil wire, two types of conductive plates, namely a flat coil plate and an electrode plate, are covered in a lamination structure by an insulator having a high dielectric constant. Additionally, when operation is made as a coil as the control system of the coil unit formed by the coil wire, a power supply is provided for conduction between the coil plate of the tip section of the coil unit and that of the terminal section of the coil unit. When operating as a capacitor, the coil plate and the electrode plate at the tip section are short-circuited by a capacitor setting switch, and further electromotive force being generated by the coil unit is applied, thus accumulating, as a charge, the electromotive force being generated by the coil unit at the capacitor formed by the coil plate and the electrode plate in the coil unit.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil with a built-in capacitor having a capacitor function for accumulating electric charge in a coil for an electromagnetic circuit, and to control the coil with a built-in capacitor. For a control system. 2. Description of the Related Art Hitherto, as a means for forming an electromagnetic circuit, for example, a coil such as a motor or a solenoid, a copper wire such as an enamel wire has been wound around an iron core. Further, as a means for forming a thin linear motor, a solenoid, or the like, there is a method in which a copper foil is printed in a coil shape on a printed circuit board. [0003] However, the coil of the motor or the solenoid merely generates a magnetic field to cause the motor or the solenoid to rotate or adsorb, and has no other purpose of use. . Further, the above operation is performed only when the external power supply is energized. However, when the external power supply is stopped and continued to operate due to inertia or other factors, a back electromotive force is generated. When the back electromotive force has an adverse effect on the device, it is erased by a protection circuit. In the case of a motor or a solenoid such as a solenoid, if it has a somewhat large shape, the number of turns is several hundred to several thousand, and the coils are very densely wound in order to increase the magnetic flux density. The applicant of the present invention pays attention to the above points, and winds another electrode wire around the coil wire of the coil for the electromagnetic circuit, and has two functions of a coil for performing electromagnetic induction and a capacitor for storing electric charge. It was determined that they could be formed in the same coil. If this function is realized, when performing electromagnetic induction, that is, when energizing the coil, the capacitor function is opened to operate only the coil function, and when stopping electromagnetic induction, that is, when energizing the coil is stopped. By activating the capacitor function and storing the electromotive force generated in the coil as electric charge in the capacitor, the electric charge can be reduced as part of the energy when the coil is energized again, creating new electromagnetic induction technology and saving energy. A system is to be constructed. The present invention has been made in view of the above circumstances, and has a capacitor built-in coil having a built-in capacitor function for accumulating electric charge in a coil for an electromagnetic circuit, and a method for controlling the capacitor built-in coil. The purpose of the present invention is to provide a control system. In order to solve the above problems, two types of conductive plates, namely, a flat coil plate 3 and an electrode plate 4, are used as the coil wires 2 in the coil system with a built-in capacitor of the present invention. The laminated structure is covered with an insulator 5 having a dielectric constant. As a control system of the coil unit 1 formed by winding the coil wire 2 many times, when the coil unit 2 is operated as a coil, the coil plate 3 at the end of the coil unit 1 and the coil plate 3 at the end of the coil unit 1 A power supply 8 is disposed between the power supply and the power supply. When operating as a capacitor, the coil plate 3 and the electrode plate 4 at the end of the coil unit 1 are short-circuited by the capacitor setting switch 6 and the electromotive force generated in the coil unit 1 is applied. The electromotive force generated in the coil unit 1 is accumulated as a charge in a capacitor formed by the first coil plate 3 and the electrode plate 4, and further charges an external high-capacity capacitor or a secondary battery 7. Then, when operating as a coil again, the energy obtained by the capacitor function is returned to the power supply 8. An embodiment of the present invention will be described with reference to the drawings. FIG. 2 is an external view of a coil wire in the coil system with a built-in capacitor of the present invention, and FIG. 3 is an enlarged sectional view of the coil wire in the coil system with a built-in capacitor of the present invention. As shown in FIGS. 2 and 3, two types of conductive plates, namely a flat coil plate 3 and an electrode plate 4, are used as the coil wires 2 in the coil system with a built-in capacitor according to the present invention. It is assumed that the body 5 covers the laminated structure. The material of the coil plate 3 and the electrode plate 4 is not particularly limited, but a lightweight, inexpensive and highly conductive aluminum plate is preferable. Elements such as the gap between the coil plate 3 and the electrode plate 4, the material of the insulator 5 and the width of the coil wire 2 are related to the characteristics of the magnetic flux density and the capacitance of the coil unit 1 to be manufactured. Good to keep. FIG. 1 is a schematic configuration diagram of a coil system with a built-in capacitor according to the present invention. In the coil unit 1 formed by winding the coil wire 2 many times, the coil unit 1 is operated as a coil. A power source 8 is provided between the coil plate 3 at the end of the unit 1 and the coil plate 3 at the end of the coil unit 1 to energize.
At this time, the capacitor setting switch 6 is opened.
In this case, only the coil plate 3 indicated by a solid line in the coil unit 1 in the drawing operates as a general coil. Further, the electrode plate 4 indicated by the dotted line simply functions as a heat sink. When operating as a capacitor, the coil plate 3 and the electrode plate 4 at the tip of the coil unit 1 are used.
Is short-circuited by the capacitor setting switch 6 and the electromotive force generated in the coil unit 1 is applied.
The electromotive force generated in the coil unit 1 is accumulated as a charge in a capacitor formed by the coil plate 3 and the electrode plate 4 of the coil unit 1. Further, this charge is charged to an external high-capacity capacitor or a secondary battery 7. And
When the coil is operated again, if the energy obtained by the capacitor function is returned to the power supply 8, the inrush current at the time of driving the coil can be replenished by the external high-capacity capacitor or the secondary battery 7, thereby saving energy. Is obtained. An embodiment of the present invention will be described with reference to the drawings. FIG.
Is an example of a circuit for driving the coil system with a built-in capacitor of the present invention. As shown in FIG. 4, in the circuit example, two types of conductive plates, namely a flat coil plate 3 and an electrode plate 4, are covered with an insulator 5 having a high dielectric constant in a laminated structure. A coil unit 1 formed by winding a large number of coil wires 2,
The coil unit 1 comprises a drive unit 9 for operating as a coil or operating as a capacitor. The drive unit 9 controls the function of the capacitor setting switch 6, the drive control of the coil and the charge control of the secondary battery 13, and the function of the coil unit 1 as a coil. A coil drive unit 11 for controlling power supply to the coil plates 3 at both ends of the coil wire 2, and an AC for converting the main power supply 14 and the secondary battery 13, which are DC power supplies, to an AC power supply for driving the coil. The conversion unit 12 is configured. This circuit example shows an example in which a secondary battery 13 such as a lithium ion battery is used as a means for charging the electromotive force generated in the coil unit 1. When the coil unit 1 is operated as a coil, the control unit 10 controls the triacs P1, P
Gate signal for turning ON the isolator U
1, U2 to turn on triacs P1 and P2. Also, the DC power from the main power supply 14 and the secondary battery 13 is converted to the AC converter 1 composed of an oscillator, a transformer, and the like.
2 to an AC power source.
When the coil unit 1 is energized through the coil, operation as a coil becomes possible. The isolator U
Reference numerals 1 and U2 are used for signal insulation from the drive unit 9. When the power supply to the coil unit 1 is stopped and the coil unit 1 is operated as a capacitor for storing the electromotive force generated in the coil unit 1, a gate signal for turning off the triacs P1 and P2 from the control unit 10 is provided by the control unit 10. Is input to the isolators U1 and U2 to turn off the triacs P1 and P2.
Input a gate signal for turning ON. Then, the gate signal of the thyristor S2 is turned on, and the electric charge stored as the capacitor is charged in the secondary battery 13. The main power source 14 is used as a power source even in the coil drive in the next cycle. In this case, the gate signal of the thyristor S1 is turned on by the control unit 10 to energize the main power supply 14, but if the current is insufficient, replenishment is performed from the secondary battery 13. By doing so, it is not necessary to increase the capacity of the main power supply 14 more than necessary, and the discharge current can be suppressed, so that a power supply smaller than before can be obtained, and an energy saving effect can be obtained. In the above description, if the coil unit 1 is of a DC drive type, the AC converter 12 becomes unnecessary. As described above, according to the coil system with a built-in capacitor of the present invention, a coil unit having a built-in capacitor function for accumulating electric charges in a coil for an electromagnetic circuit, A control system for controlling can be easily configured. Then, by combining the coil function and the capacitor function, the energy obtained by the capacitor function can be returned to the power supply. Therefore, the inrush current at the time of driving the coil can be supplied by an external high-capacity capacitor or a secondary battery,
Energy saving effect can be obtained. Therefore, if this system is applied to various products that require motor drive and solenoid drive such as hybrid cars,
Numerous effects such as downsizing the product, reducing the weight, reducing the manufacturing cost, and extending the service life are achieved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic configuration diagram of a coil system with a built-in capacitor of the present invention. FIG. 2 is an external view of a coil wire in the coil system with a built-in capacitor of the present invention. FIG. 3 is an enlarged sectional view of a coil wire in the coil system with a built-in capacitor of the present invention. FIG. 4 is an example of a circuit for driving the coil system with a built-in capacitor of the present invention. [Description of Signs] 1 Coil unit 2 Coil wire 3 Coil plate 4 Electrode plate 5 Insulator 6 Capacitor setting switch 7 High-capacity capacitor or secondary battery 8 Power supply 9 Drive unit 10 Control unit 11 Coil drive unit 12 AC conversion unit 13 2 Secondary battery 14 Main power supply P1, P2 Triac T1, T2 Triac S1, S2 Thyristor U1, U2 Isolator

Claims (1)

Claims: 1. An insulator (5) having a high dielectric constant by using two types of conductive plates as a coil wire (2), a flat coil plate (3) and an electrode plate (4). To cover the laminated structure with
As a control system for the coil unit (1) formed by winding a large number of the coil wires (2), when operating as a coil, the coil plate (3) at the tip of the coil unit (1) and the coil unit (1) When a power source (8) is provided between the coil unit (3) at the end and energized to operate as a capacitor, the coil unit (3) at the end of the coil unit (1) and the electrode plate (4) are used. ) Is short-circuited by the capacitor setting switch (6), and the electromotive force generated in the coil unit (1) is applied to form a coil plate (3) and an electrode plate (4) of the coil unit (1). When the electromotive force generated in the coil unit (1) is accumulated as an electric charge in the capacitor, and the external high-capacity capacitor or the secondary battery (7) is charged and operated again as a coil, Characterized by being constituted by the functions of reducing the energy obtained by Pashita function to a power source (8), capacitor internal coil system.