CN202939889U - Simple electromagnetic induction teaching demonstration instrument - Google Patents
Simple electromagnetic induction teaching demonstration instrument Download PDFInfo
- Publication number
- CN202939889U CN202939889U CN2012206758090U CN201220675809U CN202939889U CN 202939889 U CN202939889 U CN 202939889U CN 2012206758090 U CN2012206758090 U CN 2012206758090U CN 201220675809 U CN201220675809 U CN 201220675809U CN 202939889 U CN202939889 U CN 202939889U
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- CN
- China
- Prior art keywords
- electromagnetic induction
- secondary coil
- coil
- demonstration instrument
- teaching demonstration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a simple electromagnetic induction teaching demonstration instrument. The simple electromagnetic induction teaching demonstration instrument is mainly composed of a secondary coil assembly and a primary coil. The secondary coil assembly is composed of an earplug pin, power connection wires and a secondary coil. The right ends of the power connection wires are connected onto the earplug pin, and the other ends of the power connection wires are connected onto two wire connection terminals of the secondary coil. The primary coil is composed of wire connection terminals and a coil. The simple electromagnetic induction teaching demonstration instrument of the utility model has characteristics, such as simple design, convenience, practicability, etc.
Description
Technical field
The utility model relates to a kind of demonstration instrument for teaching, relates in particular to a kind of easy electromagnetic induction demonstration instrument for teaching.
Background technology
Be difficult for allowing the student experience electromagnetic induction phenomenon in the teaching of electromagnetic induction, the student can not know from experience superiority and the application that electromagnetic induction brings intuitively in the process of study.
Summary of the invention
For the deficiencies in the prior art, the purpose of this utility model is to propose a kind of easy electromagnetic induction demonstration instrument for teaching, and this equipment is not only simple but also can allow the student experience the application in life that electromagnetic induction phenomenon and electromagnetic induction bring.
To achieve these goals, the technical solution adopted in the utility model is such: it mainly is comprised of secondary coil combination and main coil; The secondary coil combination is comprised of earplug contact pin, electric power connection line and secondary coil; The electric power connection line right-hand member is connected on the earplug contact pin, and the other end is connected on two binding posts of secondary coil; Main coil is comprised of binding post and coil.
Useful technique effect of the present utility model is: connect the contact pin of plug on two binding posts of secondary coil, such design just can import to the electric signal of sound in earphone in secondary coil; Main coil is connected with loudspeaker, utilize like this electromagnetic induction phenomenon just can be by in the electrical signal conduction main coil of secondary coil with sound in earphone, then by loudspeaker, electric signal is become acoustical signal, allow everybody hear, the student just can experience the application of electromagnetic induction in life intuitively like this, helps the Students ' Learning electromagnetic induction phenomenon.
Description of drawings
Fig. 1 is schematic perspective view of the present utility model.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Structure of the present utility model is: it mainly is comprised of secondary coil combination (1) and main coil (2); Secondary coil combination (1) is comprised of earplug contact pin (11), electric power connection line (12) and secondary coil (13); Electric power connection line (12) right-hand member is connected on earplug contact pin (11), and the other end is connected on two binding posts of secondary coil (13); Main coil (2) is comprised of binding post (21) and coil (22).
The utility model utilizes wire to connect on loudspeaker two binding posts of main coil when in use, the earplug contact pin (11) of secondary coil combination (1) is inserted in the earphone jack of earphone, play the music in earphone, secondary coil combination (1) is placed on the outside, this is that loudspeaker is mute, then secondary coil combination (1) is inserted in the coil (22) of main coil (2), just can hear that the sound that broadcasts in loudspeaker is exactly the music of playing in earphone this moment, this design can effectively be imparted knowledge to students, and helps the student to understand electromagnetic induction phenomenon.
Claims (1)
1. easy electromagnetic induction demonstration instrument for teaching is characterized in that: it mainly is comprised of secondary coil combination (1) and main coil (2); Secondary coil combination (1) is comprised of earplug contact pin (11), electric power connection line (12) and secondary coil (13); Electric power connection line (12) right-hand member is connected on earplug contact pin (11), and the other end is connected on two binding posts of secondary coil (13); Main coil (2) is comprised of binding post (21) and coil (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206758090U CN202939889U (en) | 2012-12-10 | 2012-12-10 | Simple electromagnetic induction teaching demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206758090U CN202939889U (en) | 2012-12-10 | 2012-12-10 | Simple electromagnetic induction teaching demonstration instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202939889U true CN202939889U (en) | 2013-05-15 |
Family
ID=48324116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206758090U Expired - Fee Related CN202939889U (en) | 2012-12-10 | 2012-12-10 | Simple electromagnetic induction teaching demonstration instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202939889U (en) |
-
2012
- 2012-12-10 CN CN2012206758090U patent/CN202939889U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20131210 |