Side iron core

Abstract

The invention discloses a side iron core technology which is characterized in that a side iron core is in a sheet shape or an annular sheet shape on the side face of a loop defined by a wire, the side iron core and the loop defined by the wire are parallel or approximately parallel, and the side iron core is used for an electromagnetic induction technology or an electromagnet technology; in the electromagnetic induction technology and the electromagnet technology, the side iron core is the same as a conventional iron core in electromagnetic induction and an electromagnet, induced current can be increased and generated in the electromagnetic induction technology, a magnetic field can be increased and generated in the electromagnet technology, and iron core members are increased due to the appearance of the side iron core technology; the side iron core can also be used together with a conventional iron core at the same time, the induced current generated by the side iron core in the electromagnetic induction technology is larger than that generated by only using the conventional iron core, and the magnetic field generated by the side iron core in the electromagnet technology is stronger than that generated by only using the conventional iron core.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of iron cores, the field of electromagnetic induction technology and the field of electromagnet technology. Background Art

[0002] The role of the iron core in electromagnetic induction technology is to increase the induced electric field. Compared with the case where the iron core is not used, the induced electric field generated by the iron core is larger. In the existing electromagnetic induction technology, Faraday's law of electromagnetic induction is generally used as the theoretical basis. Therefore, when using the iron core, the magnetic flux passing through the induced coil is considered; this patent is based on the theory of induced electric field generated by changing current. The theory of induced electric field generated by changing current can be found in "Electromagnetic Induction Field Generated by Changing Current" [J]. Science and Technology Wind, 2019(02): 248. and "Electromagnetic Induction Law of Induced Electric Field Generated by Changing Current" [J]. Science and Technology Wind, 2020(18): 129. The theory of induced electric field generated by changing current takes into account all the changing magnetic fields formed around the conductor of the induced coil. This patent combines this theory and, in the electromagnetic induction technology, innovatively places a side iron core on the side of the induced coil to increase the induced current, and invents the side iron core technology for electromagnetic induction phenomenon. The electromagnet technology and the electromagnetic induction technology are of the same origin, and the side iron core used on the electromagnet can increase the magnetic field of the electromagnet. The side iron core technology of the present invention adds an iron core member to the large family of electromagnetic induction technology and electromagnet technology, and the emergence of this new iron core form will bring new production and applications. Summary of the invention

[0003] The present invention provides a side-use iron core, providing a new form of iron core for electromagnetic induction technology and electromagnet technology;

[0004] This patent provides a side core, including:

[0005] The side iron core is in the shape of a sheet or an annular sheet; the side iron core is on the side of the wire coil, or on one side or both sides, and is parallel or approximately parallel to the coil around which the wire is wound;

[0006] The material of the side core can refer to the conventional core and select the appropriate material according to the needs;

[0007] The side iron core can be applied to both sides or one side of the wire coil formed by winding a conventional iron core (the side iron core can be a whole iron core covering the conventional iron core wound with the wire, or a ring-shaped iron core covering only the wire wound with the iron core); the side iron core can also be applied to both sides or one side of the wire coil formed by winding a non-iron core (the non-iron core is a component wound with the wire and cannot play the role of an iron core) (the side iron core can be a whole iron core covering the non-iron core wound with the wire, or a ring-shaped iron core covering only the wire wound with the non-iron core);

[0008] When the side iron core is used in electromagnetic induction technology, no matter whether the wire coil is wound with a conventional iron core or a non-iron core: under the same conditions, the induced current generated when the side iron core is used on one side is larger than when the side iron core is not used at all; under the same conditions, the induced current generated when the side iron core is used on both sides is larger than when the side iron core is used on only one side; When the side iron core is used in electromagnet technology, no matter the wire coil is wound with a conventional iron core or a non-iron core: under the same conditions, the magnetic field generated when the side iron core is used on one side is larger than when the side iron core is not used at all; under the same conditions, the magnetic field generated when the side iron core is used on both sides is larger than when the side iron core is used on only one side;

[0009] When in use, the side iron core on the side of the conductor loop should be as close to the conductor as possible. The closer the side iron core is to the conductor, the better the performance of the iron core. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The embodiments of the present invention are further described below in conjunction with the accompanying drawings. Obviously, the accompanying drawings described below are part of the embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0011] Figure 1 It is a schematic structural diagram of the side iron core in an embodiment of the present invention;

[0012] Figure 2 The left figure is a schematic diagram of an electromagnetic induction embodiment in which a cable containing two conductors is tightly wound around a disc-shaped iron core for 9 turns in the first embodiment of the present invention, and the two ends of one of the two conductors contained in the cable are connected to a variable current to form a loop, and the two ends of the other conductor are connected to an electrical appliance (here, a galvanometer) to form a closed loop; Figure 2 The right figure is a schematic diagram of electromagnetic induction using a side iron core - a schematic diagram of an electromagnetic induction embodiment in which a side iron core is covered on one side of a cable wound around a disc iron core to generate an induced current;

[0012] Figure 3 The left figure is a schematic diagram of an embodiment of the present invention in which a conductor is wound around a disc-shaped iron core for 9 turns and then both ends of the conductor are connected to a constant DC power supply to form an electromagnet; Figure 3 The figure on the right is a schematic diagram of an electromagnet using a side core - a schematic diagram of an electromagnet embodiment in which a side core covers one side of a conductor wound around a disc core (a narrow iron sheet is provided somewhere below the electromagnet to detect the magnetic force of the electromagnet when one side covers the side core); DETAILED DESCRIPTION

[0013] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative work belong to the protection scope of the present invention. Embodiment 1

[0014] like Figure 2 As shown in the left figure, a cable containing two conductors is tightly wound 9 turns on a disc-shaped iron core with a diameter of 28 cm and a thickness of 3 mm. The two ends of one of the two conductors in the cable are connected to a variable current to form a loop, and the two ends of the other conductor are connected to an electrical appliance (here is a galvanometer) to form a closed loop. When there is a variable current in the loop of the conductor connected to the variable current, an induced current 1 is generated in the closed loop connected to the electrical appliance (here is the galvanometer); the side iron core - a circular sheet-shaped side iron core with an inner diameter of 28 cm, an outer diameter of 34 cm, and a thickness of 3 mm is covered on Figure 2 The two sides of the cable wrapped around the disc-shaped iron core are as follows Figure 2 As shown in the right figure, when there is a changing current in the wire loop connected to the changing current, an induced current 2 is generated in the closed loop connected to the electrical appliance (here is the ammeter); the induced current 2 is greater than the induced current 1. The ring-shaped side iron core is used here to facilitate understanding of the role of the side iron core rather than to limit its shape. The side iron core can also be a whole iron core and cover the disc core wrapped around the wire. One side iron core is used here for the convenience of drawing. In practice, it is better to use two side iron cores on both sides of the wrapped wire. For Example 1, I did the following application experiment: Figure 2 As shown in the left figure, the diameter of the disc-shaped iron core wound by the cable containing two conductors is 28 cm and the thickness is 3 mm. The cable containing two conductors is wound 9 turns as shown in the figure. The two conductors of the cable containing two conductors are respectively connected to the galvanometer for changing current and measuring induced current to form two conductor loops. A No. 1 dry battery is used as the power source. When the closed loop connected to the battery is disconnected, the closed loop connected to the galvanometer shows that the induced current generated makes the maximum swing of the galvanometer pointer 2.5 grids; For Example 1, I also did the following application experiments: Experiment 2 verifies the effect of the side iron core in electromagnetic induction technology: Figure 2As shown on the right, a side iron core with an inner diameter of 28 cm, an outer diameter of 34 cm, and a thickness of 3 mm is placed on one side of the cable wound around the disc-shaped iron core 9 turns in Experiment 1, next to the cable and parallel to the disc-shaped iron core wound around the cable. A No. 1 dry battery, the same as in Experiment 1, is used as the power source. When the closed loop connected to the battery is disconnected, the closed loop connected to the galvanometer shows that the induced current generated makes the maximum swing of the galvanometer pointer 4 grids, which is much larger than the induced current generated in Experiment 1; when the side iron core is used on both sides, the induced current generated makes the maximum swing of the galvanometer pointer 6 grids; Experiment 2 shows the practicality of the side iron core in electromagnetic induction; Replace the disc iron core wound around the cable in Experiment 2 with a plastic disc of the same size. The induced current generated is smaller. In this case, the induced current generated when the side iron core is used is also greater than the induced current generated when the side iron core is not used. The induced current generated by using the side iron core on both sides is greater than the induced current generated by using the side iron core on one side. Embodiment 2

[0015] like Figure 3 As shown in the left figure, an insulated wire is wound around a disc-shaped iron core for 9 turns, and a steady DC current is connected at both ends of the wire to form a closed loop to create an electromagnet; Figure 3 As shown in the right figure, a side iron core - a circular sheet-shaped side iron core with an inner diameter of 28 cm, an outer diameter of 34 cm and a thickness of 3 mm is covered on one side of the wound wire of the manufactured electromagnet, thus forming an electromagnet with a single-sided side iron core. For Example 2, I did the following experiment: Figure 3 As shown in the left figure, the disc-shaped iron core around which the insulated wire is wound has a diameter of 28 cm and a thickness of 3 mm. The wire is wound 9 times as shown in the figure, and a No. 1 dry battery is connected at both ends of the wire to form a loop to create an electromagnet; Figure 3 As shown in the right figure, a circular sheet-shaped side with an inner diameter of 28 cm, an outer diameter of 34 cm, and a thickness of 3 mm is covered with an iron core on one side of the winding wire of the electromagnet manufactured above; Place a rectangular narrow iron sheet with a length of 31 cm, a width of 2 mm and a thickness of 0.11 mm on the outside and add it to the inside of the electromagnet with an iron core to test the magnetic attraction of the electromagnet at this time. The iron sheet is parallel to the electromagnet and is 2 mm away from the electromagnet. When the loop of the electromagnet is closed, the experiment shows that the electromagnet can attract the iron sheet. Figure 3 As shown in the right picture; after removing the side iron core, when the iron sheet is parallel to the electromagnet and 2 mm away from the electromagnet, the experiment shows that the electromagnet cannot attract the iron sheet at this time; when the side iron core is applied on both sides, it shows that the magnetic force of the electromagnet is stronger.

[0016] The above are only common embodiments of the present invention and the technical principles used, and do not limit the scope of the embodiments of the present invention. Any obvious changes and applications made without departing from the essential spirit of the present invention will constitute an infringement of this patent right and will bear corresponding legal responsibilities.

Claims

1. A side core, characterized in that: The side iron core is in the shape of a sheet or an annular sheet; the side iron core is on the side of the wire coil, or one side or both sides, and is parallel or approximately parallel to the coil around which the wire is wound.

2. The side core according to claim 1, characterized in that: The material of the side iron core can refer to the conventional iron core and select the appropriate material according to the needs.

3. The side core according to claim 1 or 2, characterized in that: The side iron core can be used on both sides or one side of the wire coil formed by winding a conventional iron core (the side iron core can be a whole iron core covering the conventional iron core around which the wire is wound, or it can be an annular sheet iron core that only covers the wire wound around the iron core); the side iron core can also be used on both sides or one side of the wire coil formed by winding a non-iron core (the non-iron core is an element around which the wire is wound and cannot serve as an iron core) (the side iron core can be a whole iron core covering the non-iron core around which the wire is wound, or it can be an annular sheet iron core that only covers the wire wound around the non-iron core).

4. The application of the side iron core according to claims 1, 2 and 3, characterized in that: When the side iron core is used in electromagnetic induction technology, no matter whether the wire coil is wound with a conventional iron core or a non-iron core: under the same conditions, the induced current generated when the side iron core is used on one side is larger than when the side iron core is not used at all; under the same conditions, the induced current generated when the side iron core is used on both sides is larger than when the side iron core is used on only one side; When side iron cores are used in electromagnet technology, regardless of whether the wire coil is wound with a conventional iron core or a non-iron core: under the same conditions, the magnetic field generated when the side iron core is used on one side will be larger than when no side iron core is used at all; under the same conditions, the magnetic field generated when the side iron core is used on both sides will be larger than when the side iron core is used on only one side.

5. The application of the side iron core according to claims 1, 2, 3, and 4, characterized in that: When in use, the side iron core on the side of the conductor loop should be as close to the conductor as possible. The closer the side iron core is to the conductor, the better the performance of the iron core.

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