CN218122840U - Simple magnetic audio-visual education tool - Google Patents
Simple magnetic audio-visual education tool Download PDFInfo
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- CN218122840U CN218122840U CN202220637147.1U CN202220637147U CN218122840U CN 218122840 U CN218122840 U CN 218122840U CN 202220637147 U CN202220637147 U CN 202220637147U CN 218122840 U CN218122840 U CN 218122840U
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Abstract
The utility model discloses a simple and easy magnetism gives birth to electrical education instrument, including frame, rotor, magnet unit, wire frame, wire, bulb and crank carousel, the horizontal activity of rotor runs through and sets up in the middle of the frame, the wire frame is square structure activity and sets up on the rotor, it corresponds fixedly with the frame through the couple respectively on four angles of wire frame, correspond fixed being provided with through the rubber band on the rotor and being located the inboard magnet unit of wire frame, the wire winding sets up on the wire frame and corresponds the series connection at the frame upper surface and be provided with the bulb, rotor one end corresponds and is provided with driven gear, the frame corresponds above the rotor and is provided with the crank carousel, be provided with driving gear and driven gear meshing on the crank carousel. The utility model judges whether the power generation is carried out or not and the generated energy is generated by utilizing the light emitting and the brightness degree of the light emitting of the small bulb; the structure design can change the magnetic size; the speed of change of the magnetic flux can be adjusted by adjusting the rotational speed of the magnet.
Description
Technical Field
The utility model belongs to the physical teaching tool field of this branch of academic or vocational study of junior high school and university especially relates to a simple and easy magnetism of Faraday electromagnetic induction phenomenon gives birth to electric teaching tool.
Background
In the basic teaching course of electromagnetism, the principle of electromagnetic induction is always the key knowledge of learning. Is the basis of future higher-order physical knowledge. How to visually and rapidly display the magnetic generating electricity phenomenon and enable students to understand the principle of the magnetic generating electricity is a difficult point in teaching. However, in the current daily teaching, common students can only study through a two-dimensional textbook attached drawing or a two-dimensional schematic drawing which is drawn by a teacher on a blackboard by hands. Students can hardly intuitively feel the magnetic-induced and electric imagination. In addition, the textbook and the two-dimensional graph drawn by the teacher by hands are explained by adopting the mode of fixing the magnetic field and swinging and cutting the magnetic field by local wires, but the two-dimensional graph is simple but not novel enough, and can not be deeply memorized by students. Further, the influence of the strength of the magnetic field and the changing speed of the magnetic flux on the induced current cannot be intuitively and quickly understood.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problem of providing a simple magnetic-induced electricity teaching tool, in order to visually and deeply display the magnetic-induced electricity principle, the designed electric wire which is different from the traditional mode is fixed, the magnetic-induced electricity phenomenon is displayed in a mode of cutting a wire by a magnetic field, and whether electricity is generated or not and the generated energy is judged by utilizing the light emitting of a small bulb and the brightness degree of the light emitting; in order to show the relationship between the magnetic field intensity and the magnitude of induced current, a structure design which can be disassembled for replacement and can change the magnetic magnitude is designed; in order to show the relationship between the change speed of the magnetic flux and the induced current, a rocker and shiftable gear driving structure is designed, and the change speed of the magnetic flux can be adjusted by adjusting the rotation speed of the magnet.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a simple and easy magnetism gives birth to electrified education instrument, including frame, rotor, magnet group, wire frame, wire, bulb and crank carousel, the frame is square structure setting and the bottom both sides correspond the support through the base respectively, the horizontal activity of rotor runs through to set up in the middle of the frame, the wire frame is square structure activity and sets up on the rotor, it is fixed with the frame correspondence through the couple respectively on four angles of wire frame, correspond fixedly through the rubber band on the rotor and be provided with the magnet group that is located the wire frame inboard, the wire winding sets up on the wire frame and corresponds the series connection at the frame upper surface and be provided with the bulb, rotor one end corresponds and is provided with driven gear, the frame corresponds in the rotor top and is provided with the crank carousel, be provided with driving gear and driven gear meshing on the crank carousel.
In a preferred embodiment of the present invention, the magnet assembly is formed by stacking a plurality of rectangular thin magnets.
In a preferred embodiment of the present invention, the light bulbs are connected in series in a plurality.
In a preferred embodiment of the present invention, the driven gear includes a first driven gear and a second driven gear, and the first driven gear and the second driven gear are disposed at intervals on both sides of the frame.
In a preferred embodiment of the present invention, the driving gear includes a first driving gear and a second driving gear, and the first driving gear and the second driving gear are disposed on two sides of the frame.
In a preferred embodiment of the present invention, the first driving gear and the second driving gear are arranged in a staggered manner when the first driving gear meshes with the first driven gear, whereas the second driving gear and the first driven gear are arranged in a staggered manner when the second driving gear meshes with the second driven gear.
In a preferred embodiment of the present invention, the gear ratio of the first driving gear and the first driven gear is 2:1, the gear ratio of the second driving gear to the second driven gear is 1:2, i.e., the second gear speed is 4 times the first gear speed.
The utility model has the advantages that: the utility model discloses a simple and easy magnetism gives birth to electric teaching tool who points out has following advantage:
1. in order to visually and deeply show the magnetic generating principle, the designed electric wire which is different from the traditional mode is fixed, the magnetic generating phenomenon is shown in a mode of cutting a lead by a magnetic field, and whether power generation is carried out or not and the magnitude of generated energy is judged by utilizing the luminous brightness degree of a small bulb;
2. in order to show the relationship between the magnetic field intensity and the magnitude of induced current, a structure design which can be disassembled for replacement and can change the magnetic magnitude is designed;
3. in order to show the relationship between the change speed of the magnetic flux and the induced current, a rocker and shiftable gear driving structure is designed, and the change speed of the magnetic flux can be adjusted by adjusting the rotating speed of a magnet.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
FIG. 1 is a perspective view of a preferred embodiment of the present invention;
FIG. 2 is a front view of a preferred embodiment of the present invention;
FIG. 3 is a right side view of a preferred embodiment of the simple magnetohydrodynamic teaching tool of the present invention;
FIG. 4 is a top view of a preferred embodiment of the present invention;
FIG. 5 is a schematic view of a rotor of a preferred embodiment of the simple magnetic teaching tool;
fig. 6 is a schematic structural view of a simple magnetic-electric teaching tool of the present invention, in which 10 rectangular thin magnets are provided at a first gear rotation speed in accordance with a preferred embodiment;
FIG. 7 is a schematic structural view of a preferred embodiment of the present invention, which is a simplified magnetic-electric teaching tool, showing 10 rectangular thin magnets at a second gear speed;
fig. 8 is a schematic structural view of the simple magnetic-generating-electric teaching tool of the present invention, which is equipped with 6 rectangular thin magnets at a first gear rotation speed according to a preferred embodiment;
fig. 9 is a schematic structural view of a rotor and a crank turntable transmission part of a preferred embodiment of the simple magnetic teaching tool.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 in conjunction with fig. 2-9, an embodiment of the present invention includes:
a simple magnetic bioelectricity teaching tool comprises a frame 1, a rotor 2, a magnet group 3, a lead frame 4, a lead 5, a bulb 6 and a crank turntable 7.
Wherein, frame 1 is the square structure setting and the bottom both sides correspond the support through base 8 respectively, and frame 1 can make things convenient for the installation of each part, and base 8 can guarantee that frame 1's support is stable.
The rotor 2 is transversely movably arranged in the middle of the frame 1 in a penetrating manner, and can realize axial adjustment and axial rotation.
The lead frame 4 is movably arranged on the rotor 2 in a square structure, the lead frame 4 is prevented from synchronously rotating along with the rotor 2, and the four corners of the lead frame 4 are correspondingly fixed with the frame 1 through the hooks 9, so that the lead frame 4 is ensured to be fixed stably.
The rotor 2 is correspondingly and fixedly provided with a magnet group 3 positioned on the inner side of the lead frame 4 through a rubber band 10, and the magnet group 3 synchronously rotates along with the rotor 2. The magnet group 3 is formed by stacking a plurality of rectangular thin magnets, and the size of the magnetic field is adjusted by increasing or decreasing the rectangular thin magnets.
Enough transverse moving space of the magnet group 3 is reserved in the lead frame 4, and the normal operation of the experiment is ensured.
The lead 5 is wound on the lead frame 4, the plurality of bulbs 6 are correspondingly arranged on the upper surface of the frame 1 in series, the magnetic field 11 (represented by the magnetic induction line) of the magnet group 3 passes through the conductive coil on the lead frame 4 in a cutting mode in the rotating process, and according to the electromagnetic induction principle, induced current can be generated in the lead 5 and is conducted to the bulbs 6 through the lead 5, so that the bulbs 6 are lightened, the larger the current is, the brighter the bulbs 6 are, and the electromagnetic induction principle and the magnetic electrification phenomenon are visually displayed and verified.
The frame 1 is correspondingly provided with a crank turntable 7 above the rotor 2, and the crank turntable 7 is provided with a driving gear meshed with a driven gear and used for driving the rotor 2 to rotate through the crank turntable 7.
The driving gear includes first driving gear 14 and second driving gear 15, first driving gear 14 and second driving gear 15 paste and set up in frame 1 both sides, guarantee the stable use of crank carousel 7.
When the first driving gear 14 is engaged with the first driven gear 12, the first driving gear 15 and the second driven gear 13 are arranged in a staggered manner, and when the second driving gear 15 is engaged with the second driven gear 13, the second driving gear 14 is arranged in a staggered manner with the first driven gear 12. The first gear rotating speed and the second gear rotating speed are converted and used through manually adjusting the rotor 2.
The gear ratio of the first driving gear 14 to the first driven gear 12 at the first gear speed is 2:1, the gear ratio of the second driving gear 15 to the second driven gear 13 at the second-gear rotating speed is 1:2, i.e., the second gear speed is 4 times the first gear speed.
Under the conditions that the gear is unchanged and the rotating speed of the crank rotating disk 7 is basically unchanged, the relationship between the magnitude of the magnetic field and the magnitude of the induced current is demonstrated and researched by increasing and reducing the number of the fixed rectangular thin magnets and observing the brightness change of the bulb 6, and the conclusion that the more the rectangular thin magnets are, the stronger the magnetic field is obtained.
Under the condition that the number of the magnet groups 3 fixed on the rotor 2 is unchanged and the rotating speed of the crank turntable 7 is basically unchanged, gear ratios are changed by switching gears to form different magnetic field rotating speeds. The relationship between the changing speed of the magnetic flux and the induced current is demonstrated and studied by observing the brightness change of the bulb 6.
To sum up, the utility model discloses a simple and easy magnetism gives birth to electric teaching tool who points out has following advantage:
1. in order to visually and deeply show the magnetic generating principle, the designed electric wire which is different from the traditional mode is fixed, the magnetic generating phenomenon is shown in a mode of cutting a lead by a magnetic field, and whether power generation is carried out or not and the magnitude of generated energy is judged by utilizing the luminous brightness degree of a small bulb;
2. in order to show the relationship between the magnetic field intensity and the magnitude of induced current, a structure design which can be disassembled for replacement and can change the magnetic magnitude is designed;
3. in order to show the relationship between the change speed of the magnetic flux and the induced current, a rocker and shiftable gear driving structure is designed, and the change speed of the magnetic flux can be adjusted by adjusting the rotating speed of a magnet.
The above-mentioned only be the embodiment of the utility model, not consequently the restriction the patent scope of the utility model, all utilize the equivalent structure or equivalent flow transform that the content of the specification was done, or directly or indirectly use in other relevant technical field, all the same reason is included in the patent protection scope of the utility model.
Claims (7)
1. The utility model provides a simple and easy magnetism gives birth to electric teaching tool, its characterized in that, includes frame, rotor, magnet group, lead frame, wire, bulb and crank carousel, the frame is square structure setting and the bottom both sides correspond the support through the base respectively, the horizontal activity of rotor runs through to be set up in the middle of the frame, the lead frame is square structure activity and sets up on the rotor, it is fixed with the frame correspondence through the couple respectively on four angles of lead frame, correspond fixedly through the rubber band on the rotor and be provided with the magnet group that is located the lead frame inboard, the wire winding sets up on the lead frame and corresponds the series connection at the frame upper surface and be provided with the bulb, rotor one end corresponds and is provided with driven gear, the frame corresponds in the rotor top and is provided with the crank carousel, be provided with driving gear and driven gear meshing on the crank carousel.
2. The simplified magneto-electric teaching tool of claim 1 wherein the magnet assembly is formed by stacking a plurality of rectangular thin magnets.
3. The simple magneto-electric teaching tool of claim 1 wherein the plurality of light bulbs are arranged in series.
4. The simple magneto-electric teaching tool of claim 1, wherein the driven gears comprise a first driven gear and a second driven gear, and the first driven gear and the second driven gear are spaced apart from each other on both sides of the frame.
5. The simple magnetic teaching tool according to claim 4 wherein the driving gears comprise a first driving gear and a second driving gear, and the first driving gear and the second driving gear are attached to two sides of the frame.
6. The simple magnetic teaching tool according to claim 5 wherein the first driving gear and the first driven gear are staggered when the first driving gear is engaged with the first driven gear, and vice versa the first driving gear and the first driven gear are staggered when the second driving gear is engaged with the second driven gear.
7. The simple magnetic teaching tool according to claim 6 wherein the gear ratio of the first driving gear to the first driven gear is 2:1, the gear ratio of the second driving gear to the second driven gear is 1:2, i.e., the second gear speed is 4 times the first gear speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220637147.1U CN218122840U (en) | 2022-03-23 | 2022-03-23 | Simple magnetic audio-visual education tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220637147.1U CN218122840U (en) | 2022-03-23 | 2022-03-23 | Simple magnetic audio-visual education tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218122840U true CN218122840U (en) | 2022-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220637147.1U Active CN218122840U (en) | 2022-03-23 | 2022-03-23 | Simple magnetic audio-visual education tool |
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| Country | Link |
|---|---|
| CN (1) | CN218122840U (en) |
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- 2022-03-23 CN CN202220637147.1U patent/CN218122840U/en active Active
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