CN111653164A - Electromagnetic induction teaching aid - Google Patents
Electromagnetic induction teaching aid Download PDFInfo
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- CN111653164A CN111653164A CN202010631752.3A CN202010631752A CN111653164A CN 111653164 A CN111653164 A CN 111653164A CN 202010631752 A CN202010631752 A CN 202010631752A CN 111653164 A CN111653164 A CN 111653164A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/181—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for electric and magnetic fields; for voltages; for currents
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Abstract
The invention discloses an electromagnetic induction teaching aid, which comprises a teaching aid body, and a wire and a power supply which are arranged in the teaching aid body, wherein the teaching aid body comprises a first glass body, a second glass body, an upper cover and a lower cover; the second glass body is sleeved in the first glass body, and the second glass body and the first glass body are coaxially arranged; the upper end of the first glass body and the upper end of the second glass body are both welded on the upper cover, the lower ends of the first glass body and the second glass body are connected into an integral structure, and the inner wall of the integral structure is in a thread shape; a cavity is formed between the first glass body and the second glass body; the cavity is filled with a suspended fluorescent metal sheet; the lead is arranged in the second glass body and vertically penetrates through the second glass body; the two ends of the lead are respectively connected with the anode and the cathode of the power supply. The teaching aid disclosed by the invention is simple in structure and low in cost, and is convenient for students to operate, so that the students can more intuitively feel the existence of electromagnetic induction and better understand the phenomenon of 'electromagnetism', a teacher can give lessons, the experimental effect is real, and the scientific theory is easy to understand.
Description
Technical Field
The invention relates to the technical field of teaching aids, in particular to an electromagnetic induction teaching aid.
Background
The magnetic induction lines are curves for visually describing the distribution of a magnetic field, and people define the magnetic induction lines as lines tangent to the magnetic induction intensity everywhere, the direction of the magnetic induction intensity is the same as the direction of the magnetic induction lines, and the size of the magnetic induction lines is in direct proportion to the density of the magnetic induction lines. Since the magnetic induction lines are curves of artificial assumptions, and the magnetic induction lines have a series of characteristics including that the magnetic induction lines are numerous and numerous, are three-dimensional, do not intersect, always start from an N pole and enter an S pole which is closest to the N pole, and the like, the magnetic induction lines are more or less difficult to understand for students just connected to the theory of electric magnetic induction.
Among the prior art, electromagnetic induction's teaching aid is perhaps very complicated, and the student of being not convenient for oneself operates, need watch teacher's demonstration, and the ordinary teaching aid that the student is operatable is two-dimentional again more, and this makes no matter which kind of mode of adoption the student can't experience electromagnetic induction's existence directly perceivedly, and the teacher also has the degree of difficulty of giving lessons. And current electromagnetic induction's teaching aid is perhaps very complicated, perhaps is two-dimensional ordinary teaching aid again, and the student of being not convenient for that leads to oneself operates, needs watch teacher's demonstration for no matter the student adopts which kind of mode can't experience electromagnetic induction directly perceived existence, and the teacher also has the problem of the degree of difficulty of giving lessons, and then provides the three-dimensional electromagnetic induction teaching aid of an optimized structure.
Therefore, how to provide a teaching aid capable of not only optimizing the structure but also displaying the electromagnetic induction in three dimensions is a problem that needs to be solved urgently by those skilled in the art.
Disclosure of Invention
Among the prior art, electromagnetic induction's teaching aid is perhaps very complicated, perhaps is two-dimensional ordinary teaching aid again, and the student of being not convenient for that leads to oneself operates, need watch teacher's demonstration for no matter the student adopts which kind of mode can't directly perceivedly experience electromagnetic induction's existence, the teacher also has very big degree of difficulty problem to how to demonstrate "electromagnetism" in giving lessons. The invention further provides a teaching aid with an optimized structure and capable of displaying electromagnetic induction in a three-dimensional mode.
In order to solve the technical problems, the invention adopts the following technical scheme: an electromagnetic induction teaching aid comprises; the teaching aid comprises a teaching aid body, and a wire and a power supply which are arranged in the teaching aid body, wherein the teaching aid body comprises a first glass body, a second glass body, an upper cover and a lower cover; the second glass body is sleeved in the first glass body, and the second glass body and the first glass body are coaxially arranged; the upper end of the first glass body and the upper end of the second glass body are both welded on the upper cover, the lower ends of the first glass body and the second glass body are connected into an integral structure, and the inner wall of the integral structure is in a thread shape; a cavity is formed between the first glass body and the second glass body; the cavity is filled with a suspended fluorescent metal sheet;
the lead is arranged in the second glass body and vertically penetrates through the second glass body; and two ends of the lead are respectively connected with the anode and the cathode of the power supply.
Preferably, the outer side of the lower cover is provided with a thread shape and is matched with the lower ends of the first glass body and the second glass body.
Preferably, through holes are formed in the middle of the upper cover and the middle of the lower cover, and each through hole is matched with the lead.
Preferably, the first glass body and the second glass body are the same in length and are coaxially arranged.
Preferably, the conducting wire is coaxially arranged with the first glass body and the second glass body.
Compared with the prior art, the invention has the following technical effects:
according to the invention, by arranging the first glass body, the second glass body, the upper cover, the lower cover, the conducting wire and the power supply, a cavity formed by the first glass body and the second glass body is filled with liquid in which a fluorescent metal sheet is suspended, and the second glass body is internally coaxially provided with an electrifying conducting wire in a penetrating manner; the container is shaken before the use, and sheetmetal evenly distributed is in the container, and when the back of switching on the wire, the fluorescence sheetmetal in the container can demonstrate the distribution of magnetic induction line because electromagnetic induction, and the phenomenon of "electricity generates magnetism" is understood to the help student that can be splendid to great promotion mr's teaching efficiency. The teaching aid disclosed by the invention is simple in structure and low in cost, and is convenient for students to operate, so that the students can more intuitively feel the existence of electromagnetic induction and better understand the phenomenon of 'electromagnetism', a teacher can give lessons, the experimental effect is real, and the scientific theory is easy to understand.
Drawings
FIG. 1 is a schematic cross-sectional view of an electromagnetic induction teaching aid according to the present invention;
FIG. 2 is a schematic cross-sectional view of a lower cover 14 of an electromagnetic induction teaching aid of the present invention;
in the figure: 1. a teaching aid body; 11. a first glass body; 12. a second glass body; 13. an upper cover; 14, a lower cover; 15. a cavity; 2. and (4) conducting wires.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1, the electromagnetic induction teaching aid comprises an electromagnetic induction teaching aid body 1, and a wire 2 and a power supply which are arranged in the teaching aid body 1, wherein the teaching aid body 1 comprises a first glass body 11, a second glass body 12, an upper cover 13 and a lower cover 14; the second glass body 12 is sleeved in the first glass body 11, and the second glass body 12 and the first glass body are coaxially arranged; the upper end of the first glass body 11 and the upper end of the second glass body 12 are both welded on the upper cover 13, the lower ends of the first glass body and the second glass body are connected into an integral structure, and the inner wall of the integral structure is in a thread shape; and a cavity 15 is formed between the first glass body 11 and the second glass body 12; the cavity 15 is filled with suspended fluorescent metal sheets;
the lead 2 is arranged in the second glass body 12 and vertically penetrates through the second glass body 12; and two ends of the lead 2 are respectively connected with the anode and the cathode of the power supply.
The outer side of the lower cover 14 is provided with a thread shape and is matched with the lower ends of the first glass body 11 and the second glass body 12. Through holes are formed in the middle of the upper cover 13 and the lower cover 14, and each through hole is matched with the lead 2.
The first glass body 11 and the second glass body 12 are the same in length and are coaxially arranged.
The conducting wire 2 is also arranged coaxially with the first glass body 11 and the second glass body 12.
In some embodiments, the first glass body and the second glass body are both configured as cylinders for facilitating the student's understanding of the simulation and for facilitating the configuration of the overall structure.
The invention solves the problems that in the prior art, the teaching aid of electromagnetic induction is very complex or is a two-dimensional common teaching aid, so that the students are inconvenient to operate and need to watch the demonstration of a teacher, and the students cannot intuitively feel the existence of the electromagnetic induction in any way and the teaching of the teacher is difficult, and the invention is provided with the first glass body 11, the second glass body 12, the upper cover 13, the lower cover 14, the lead 2 and the power supply, wherein the cavity 15 formed by the first glass body 11 and the second glass body 12 is filled with liquid in which a fluorescent metal sheet is suspended, and the lead 2 is coaxially arranged in the second glass body 12 in a penetrating way; the container is shaken before the use, and sheetmetal evenly distributed is in the container, and after 2 circular telegrams to the wire, the fluorescence sheetmetal in the container can demonstrate the distribution of magnetic induction line because electromagnetic induction, and the phenomenon of "electricity is given birth to magnetism" is understood to the help student that can be splendid to great promotion mr's teaching efficiency. The teaching aid disclosed by the invention is simple in structure and low in cost, and is convenient for students to operate, so that the students can more intuitively feel the existence of electromagnetic induction and better understand the phenomenon of 'electromagnetism', a teacher can give lessons, the experimental effect is real, and the scientific theory is easy to understand.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (5)
1. An electromagnetic induction teaching aid comprises a teaching aid body (1), a wire (2) arranged in the teaching aid body (1) and a power supply, and is characterized in that the teaching aid body (1) comprises a first glass body (11), a second glass body (12), an upper cover (13) and a lower cover (14); the second glass body (12) is sleeved in the first glass body (11), and the second glass body (12) and the first glass body are coaxially arranged; the upper end of the first glass body (11) and the upper end of the second glass body (12) are both welded on the upper cover (13), the lower ends of the first glass body and the second glass body are connected into an integral structure, and the inner wall of the integral structure is in a thread shape; and a cavity (15) is formed between the first glass body (11) and the second glass body (12); the cavity (15) is filled with suspended fluorescent metal sheets;
the lead (2) is arranged in the second glass body (12) and vertically penetrates through the second glass body (12); and two ends of the lead (2) are respectively connected with the anode and the cathode of the power supply.
2. An electromagnetic induction teaching aid according to claim 1, characterized in that the outer side of the lower cover (14) is provided with a thread shape and is matched with the lower ends of the first glass body (11) and the second glass body (12).
3. An electromagnetic induction teaching aid according to claim 2, characterized in that the middle parts of the upper cover (13) and the lower cover (14) are provided with through holes, and each through hole is matched with the lead (2).
4. An electromagnetic induction teaching aid according to any of claims 1 to 3, characterized in that the first glass body (11) and the second glass body (12) are of the same length and are arranged coaxially.
5. An electromagnetic induction teaching aid according to any claim 4, characterized in that the conducting wire (2) is also arranged coaxially with the first glass body (11) and the second glass body (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010631752.3A CN111653164A (en) | 2020-07-03 | 2020-07-03 | Electromagnetic induction teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010631752.3A CN111653164A (en) | 2020-07-03 | 2020-07-03 | Electromagnetic induction teaching aid |
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| Publication Number | Publication Date |
|---|---|
| CN111653164A true CN111653164A (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010631752.3A Pending CN111653164A (en) | 2020-07-03 | 2020-07-03 | Electromagnetic induction teaching aid |
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| CN (1) | CN111653164A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2271008Y (en) * | 1996-07-05 | 1997-12-17 | 张林广 | Electromagnetism demonstration box |
| CN201084300Y (en) * | 2007-09-05 | 2008-07-09 | 安徽省科学技术馆 | A device for demonstrating electromagnetic induction |
| CN201893054U (en) * | 2010-09-30 | 2011-07-06 | 曹广雪 | Toy capable of being used as electromagnetic induction demonstrator |
| JP3190272U (en) * | 2014-02-12 | 2014-04-24 | 株式会社誠文社 | Science teaching materials |
| CN206431930U (en) * | 2016-12-29 | 2017-08-22 | 黄心怡 | A kind of 3 D electromagnetic senses teaching aid |
| CN107993533A (en) * | 2017-12-22 | 2018-05-04 | 宁波沸柴机器人科技有限公司 | A kind of Chaos Pendulum overturn at random |
-
2020
- 2020-07-03 CN CN202010631752.3A patent/CN111653164A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2271008Y (en) * | 1996-07-05 | 1997-12-17 | 张林广 | Electromagnetism demonstration box |
| CN201084300Y (en) * | 2007-09-05 | 2008-07-09 | 安徽省科学技术馆 | A device for demonstrating electromagnetic induction |
| CN201893054U (en) * | 2010-09-30 | 2011-07-06 | 曹广雪 | Toy capable of being used as electromagnetic induction demonstrator |
| JP3190272U (en) * | 2014-02-12 | 2014-04-24 | 株式会社誠文社 | Science teaching materials |
| CN206431930U (en) * | 2016-12-29 | 2017-08-22 | 黄心怡 | A kind of 3 D electromagnetic senses teaching aid |
| CN107993533A (en) * | 2017-12-22 | 2018-05-04 | 宁波沸柴机器人科技有限公司 | A kind of Chaos Pendulum overturn at random |
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Application publication date: 20200911 |
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| RJ01 | Rejection of invention patent application after publication |