CN208637051U - A kind of device for demonstrating transformer principle - Google Patents
A kind of device for demonstrating transformer principle Download PDFInfo
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- CN208637051U CN208637051U CN201721649985.6U CN201721649985U CN208637051U CN 208637051 U CN208637051 U CN 208637051U CN 201721649985 U CN201721649985 U CN 201721649985U CN 208637051 U CN208637051 U CN 208637051U
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Abstract
The utility model relates to Popular Science Education technical fields, more particularly to a kind of device for demonstrating transformer principle, including table top and the apparatus for demonstrating being located on the table top, the apparatus for demonstrating includes ammeter, coil block, plug-in strip component and power supply, the coil block includes soft iron component in a ring and the first coil skeleton and the second coil rack that are located on the soft iron component, first coil is wound on the first coil skeleton, the second coil is wound on second coil rack, the first coil and ammeter circuit in series, second coil connects with the plug-in strip component and power supply and constitutes circuit.The utility model is using the moment that DC power supply powers off come the situation of change of analog alternating current, allow spectators' discovery that can generate changing magnetic field in the second coil that the moment of current switching is connected with power supply, to influence first coil and show the presence of electric current in ammeter, spectators is allowed to can be visually seen the working principle of transformer by simply interaction.
Description
Technical field
The present invention relates to Popular Science Education technical field more particularly to a kind of devices for demonstrating transformer principle.
Background technique
Transformer is the device for changing alternating voltage using the principle of electromagnetic induction, and main member is primary coil, secondary
Grade coil and iron core (magnetic core), and the device of few demonstration transformer principles at present.
Summary of the invention
The purpose of the present invention is to provide a kind of devices for demonstrating transformer principle.
In order to solve the above technical problems, the present invention adopts the following technical scheme that:
A kind of device for demonstrating transformer principle, including table top and the apparatus for demonstrating being located on the table top, the demonstration
Device includes ammeter, coil block, plug-in strip component and power supply, and the coil block includes soft iron component in a ring and is located at
First coil skeleton and the second coil rack on the soft iron component, are wound with First Line on the first coil skeleton
Circle is wound with the second coil, the first coil and ammeter circuit in series, institute on second coil rack
State the second coil and the plug-in strip component and power supply circuit in series.
Preferably, the power supply is the DC power supply lower than 36V.
Compared with prior art, the invention has the benefit that
A kind of device for demonstrating transformer principle of the present invention, using the moment of DC power supply power-off come the change of analog alternating current
Change situation, since the second coil that the moment in current switching is connected with power supply can generate changing magnetic field, thus act on and
It is fixed on the first coil of the same soft iron component, causes to produce induced current in first coil.By with described first
The concatenated ammeter of coil, allows spectators to can be visually seen the working principle of transformer.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the present invention；
Fig. 2 is overlooking structure diagram of the present invention.
Specific embodiment
Referring to shown in attached drawing 1-2, a kind of device for demonstrating transformer principle including table top 1 and is located on the table top 1
Apparatus for demonstrating, the apparatus for demonstrating include ammeter 2, coil block, plug-in strip component 3 and power supply 4, and the coil block includes being in
The soft iron component 5 of annular and the first coil skeleton 6 and the second coil rack 7 being located on the soft iron component 5, described first
It is wound with first coil 8 on coil rack 6, the second coil 9, the first coil 8 are wound on second coil rack 7
With the ammeter 2 circuit in series, second coil 9 connects with the plug-in strip component 3 and power supply 4 and constitutes circuit.
A kind of device for demonstrating transformer principle of the present invention, a shield 10 is additionally provided on the outside of apparatus for demonstrating, is grasped
Make as follows:
1, when plug-in strip component 3 disconnects, ammeter 2 is observed, is found without registration；
2, it is closed the moment of plug-in strip component 3, observes ammeter 2, discovery has registration variation；
3, after being closed 3 a period of time of plug-in strip component, ammeter 2 is observed, is found without registration；
4, the moment of disconnection valve knife assembly 3, ammeter 2 is observed, discovery has registration variation.
Apparatus of the present invention are exactly to be found come the situation of change of analog alternating current in electric current using the moment of DC power supply power-off
The second coil 9 that the moment of on-off is connected with power supply 4 can generate changing magnetic field, thus act on be fixed on it is same soft
The first coil 8 of iron component 5, to make to produce induced current in first coil 8.By concatenated with the first coil 8
Ammeter 2 allows spectators to can be visually seen the working principle of transformer by simply interaction.
The above description is only the preferred embodiments of the present invention, is not intended to limit the present invention in any other form,
Any person skilled in the art is changed or is modified as equivalent variations possibly also with the technology contents of the disclosure above
Equivalent embodiment.But without departing from the concept of the present invention, above embodiments are done according to the technical essence of the invention
Any simple modification, equivalent variations and remodeling, still fall within protection scope of the present invention.
Claims (2)
1. a kind of device for demonstrating transformer principle, including table top and the apparatus for demonstrating being located on the table top, it is characterised in that:
The apparatus for demonstrating includes ammeter, coil block, plug-in strip component and power supply, and the coil block includes soft iron group in a ring
Part and the first coil skeleton and the second coil rack being located on the soft iron component, are wound on the first coil skeleton
First coil, is wound with the second coil on second coil rack, and the first coil and the ammeter are in series
Circuit, second coil and the plug-in strip component and power supply circuit in series.
2. it is according to claim 1 it is a kind of demonstrate transformer principle device, it is characterised in that: the power supply be lower than
The DC power supply of 36V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721649985.6U CN208637051U (en) | 2017-12-01 | 2017-12-01 | A kind of device for demonstrating transformer principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721649985.6U CN208637051U (en) | 2017-12-01 | 2017-12-01 | A kind of device for demonstrating transformer principle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208637051U true CN208637051U (en) | 2019-03-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721649985.6U Active CN208637051U (en) | 2017-12-01 | 2017-12-01 | A kind of device for demonstrating transformer principle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208637051U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749226A (en) * | 2017-12-01 | 2018-03-02 | 合肥探奥自动化有限公司 | A kind of device for demonstrating transformer principle |
-
2017
- 2017-12-01 CN CN201721649985.6U patent/CN208637051U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749226A (en) * | 2017-12-01 | 2018-03-02 | 合肥探奥自动化有限公司 | A kind of device for demonstrating transformer principle |
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