CN106448379A - AC generator principle demonstration instrument - Google Patents
AC generator principle demonstration instrument Download PDFInfo
- Publication number
- CN106448379A CN106448379A CN201610906946.3A CN201610906946A CN106448379A CN 106448379 A CN106448379 A CN 106448379A CN 201610906946 A CN201610906946 A CN 201610906946A CN 106448379 A CN106448379 A CN 106448379A
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- CN
- China
- Prior art keywords
- coil
- control circuit
- water light
- led water
- demonstration instrument
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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
- G09B23/188—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for motors; for generators; for power supplies; for power distribution
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Mathematical Analysis (AREA)
- Computational Mathematics (AREA)
- Algebra (AREA)
- Power Engineering (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention discloses an AC generator principle demonstration instrument, which comprises a display board, a coil, an LED water light, a rotating shaft and a control circuit, and is characterized in that the coil is arranged at the hollow position of the display board, the coil can rotate around a central shaft, the coil is provided with the LED water light, and the control circuit is composed of a Hall inductive switch module and a water light control module. According to the invention, the LED water light is adopted to demonstrate changes of current, the LED water light is controlled through the inductive switch module, the flow direction of the LED water light is changed according to an angle relation between the coil and the magnetic field, a relation between the variation in magnetic flux and the direction of induced current is displayed, and the AC generator principle demonstration effect is greatly improved. The AC generator principle demonstration instrument is simple to install and easy to operate, transforms an abstract physical phenomenon to be more intuitive and more vivid, and overcomes a defect that a traditional demonstration instrument is complex and difficult to be explained.
Description
Technical field
The present invention relates to a kind of Middle School Physics demonstrator, specifically, it is related to a kind of Alternator Principle demonstrator.
Background technology
Alternating current generator is a kind of application of the law of electromagnetic induction in Middle School Physics.The alternating current that Middle School Physics are learnt
Producing principle is：When closing coil does uniform angular velocity around the axis perpendicular to magnetic induction line in magnetic field and rotates, closing coil
Magnetic flux changes generation induction electromotive force, thus producing faradic current in closing coil.Sense of current is solely dependent upon
The angle ω t that coil rotates, during coil rotates clockwise one week, often changes one through a neutral surface sense of current
Secondary, a cycle changes twice.
Student is required to know the generation principle of alternating current and the change of the sense of current in the curricular standard in middle school.Middle school is taught
Pass through in material to explain the generation principle of the principle Explanation of AC electricity of alternating current generator, and closing coil is explained with diagram method substep
Rotate, the change of magnetic flux in coil, judge the several process of change of the sense of current according to Lenz's law.But alternating current is general
Read excessively abstract, be not easy to understand, student can not understand above-mentioned abstract concept and physical process one by one.In actual classroom instruction
In, teacher is many to be imparted knowledge to students using diagram method, but the method excessively simple it is impossible to show physical change process, student was learning
Cannot be visual in image in journey do not see that coil plane turns to the change in coil induced currents direction during diverse location, and not
Can thoroughly understand and grasp this physical process.Diagram method of lecture efficiency in conventional teaching is low, and not intuitively, demonstrating effect is poor,
Students ' learning performance is bad.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of Alternator Principle demonstrator, installs simple to operation,
By abstract physical change process change more directly perceived, vivid, overcome that traditional demonstration instrument phenomenon is directly perceived, demonstrating effect
The drawbacks of differ from, be difficult to explanation.
The present invention adopts the following technical scheme that and realizes goal of the invention：
A kind of Alternator Principle demonstrator, is characterized in that:By the change using LED running lamp demonstrating current direction, lead to
Cross control circuit LED running lamp is controlled, according to the angular relationship of coil and magnetic field, change the flowing side of LED running lamp
To, the relation between displaying magnetic flux change and inductive current direction, complicated physical principle visual pattern greatly improves
The class demonstration effect of Alternator Principle, strengthens the understanding of student.
As the restriction further to the technical program, the material of described Graphic Panel and its base is rigid foam plate.
As the restriction further to the technical program, coil is connected by rotating shaft with Graphic Panel.
As the restriction further to the technical program, control circuit is by inducted switch module, flowing water lamp control module two
Part forms.Control circuit determines coil position by inducted switch module, then controls the change of LED running lamp by single-chip microcomputer
Change.
As the restriction further to the technical program, inductive switch switchs for hall sensing.
As the restriction further to the technical program, coil top center vertical coil in-plane is provided with two
Switch corresponding permanent magnet with hall sensing.
Compared with prior art, advantages of the present invention and good effect are：Present invention composition structure is simple, is easy to carry,
Easy to operate show the sense of current using LED running lamp it is easy to teacher uses in classroom teaching and during giving lessons,
And coil is showed in rotation process coil plane and magnetic field by the change that control circuit controls LED running lamp flow direction
The angle change in direction causes how the sense of current of coil inside changes, and during showing, student can understand directly
That sees sees that the faradic direction producing in coil rotates with coil plane and changes, and is easy to Students ' Learning exchange and sends out
The principle of motor, and the relation more between thorough explanation Lenz's law, faradic current and this concept of alternating current.
Brief description
Fig. 1 is the schematic device of the preferred embodiment of the present invention.
In figure, 1, Graphic Panel, 2, coil, 3, LED running lamp, 4, permanent magnet, 5, control circuit, 6, rotating shaft.
Fig. 2 is the control circuit schematic diagram of the preferred embodiment of the present invention.
Specific embodiment
With preferred embodiment, the present invention is further described in detail below in conjunction with the accompanying drawings.
Referring to Fig. 1, described Graphic Panel 1 hollow position is provided with coil 2, and coil 2 is provided with LED running lamp 3, coil top
Portion and coil plane vertical direction two ends are provided with two permanent magnets 4, and Graphic Panel 1 top is provided with control circuit 5.
Described permanent magnet 4 is circular Nd-Fe-B permanent magnetic Magnet.
Described control circuit 5 includes flowing water lamp control module, inducted switch module.
Described inducted switch module includes Hall switch, permanent magnet 4.
Described flowing water lamp control module includes single-chip microcomputer, power supply.
The workflow of the present invention is：Connect demonstrator power supply, can be manually rotated coil 2, coil 2 cutting magnetic induction line, according to
Magnetic direction on Graphic Panel 1 it can be determined that in coil 2 magnetic flux increase and decrease, coil 2 is understood according to the law of electromagnetic induction
Produce induction electromotive force and faradic current, faradic direction, the flowing water in control circuit 5 be may determine that by Lenz's law
Lamp control module controls LED running lamp 3 to light and to current generated direction flowing；When coil 2 plane goes to and Graphic Panel
When plane is vertical, near Hall switch, the action of a magnetic field of permanent magnet 4, in Hall switch, makes Hall switch produce electric current to permanent magnet 4
Signal, after control circuit 5 receives this signal, by the change of Single-chip Controlling LED running lamp flow direction, thus represent sense
The change in induced current direction；Coil 2 rotates a circle around the shaft, and two on permanent magnet 4 Magnet is respectively through Hall switch 1 time, real
The existing coil inductive current direction that rotates a circle changes the demonstrating effect of 2 times.
Certainly, described above not limitation of the present invention, the present invention is also not limited to the example above, the art
Change, remodeling, interpolation or replacement that those of ordinary skill is made in the essential scope of the present invention, fall within the guarantor of the present invention
Shield scope.
Claims (4)
1. a kind of Alternator Principle demonstrator, including Graphic Panel, coil, control circuit, rotating shaft, is characterized in that：Described exhibition
Show that plate hollow position is provided with coil, described coil is provided with LED running lamp.
2. a kind of Alternator Principle demonstrator according to claim 1, is characterized in that：Described coil pass through rotating shaft with
Graphic Panel is connected.
3. a kind of Alternator Principle demonstrator according to claim 1, is characterized in that：The setting of described Graphic Panel top
There is control circuit, described control circuit is made up of inducted switch module, flowing water lamp control module two parts.
4. a kind of Alternator Principle demonstrator according to claim 3, is characterized in that：Described inducted switch module is
Hall sensing switchs, and coil top center vertical coil in-plane is provided with two and switchs corresponding permanent magnetism with hall sensing
Body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610906946.3A CN106448379A (en) | 2016-10-19 | 2016-10-19 | AC generator principle demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610906946.3A CN106448379A (en) | 2016-10-19 | 2016-10-19 | AC generator principle demonstration instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106448379A true CN106448379A (en) | 2017-02-22 |
Family
ID=58176889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610906946.3A Pending CN106448379A (en) | 2016-10-19 | 2016-10-19 | AC generator principle demonstration instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106448379A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107564385A (en) * | 2017-10-10 | 2018-01-09 | 陕西舜洋电子科技有限公司 | A kind of vertical hydroelectric generator apparatus for demonstrating |
| CN107622721A (en) * | 2017-09-22 | 2018-01-23 | 济南大学 | A kind of elastic potential energy generator experimental device |
Citations (6)
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| CN201725470U (en) * | 2010-05-17 | 2011-01-26 | 江成奎 | Electric engine principle demonstrator |
| KR20120108874A (en) * | 2011-03-26 | 2012-10-05 | 안선후 | Studying device by the electromagnetic induction theory |
| CN204288627U (en) * | 2014-12-02 | 2015-04-22 | 许言召 | DC electromotor principle demonstrator |
| CN204833841U (en) * | 2015-05-15 | 2015-12-02 | 刘绍家 | Teaching aid of demonstration dc motor theory of operation |
| CN106023769A (en) * | 2015-09-23 | 2016-10-12 | 刘绍家 | Motor and engine integrated teaching demonstration model |
| CN106023746A (en) * | 2015-10-02 | 2016-10-12 | 刘绍家 | Visual demonstration instrument for Lenz's law |
-
2016
- 2016-10-19 CN CN201610906946.3A patent/CN106448379A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201725470U (en) * | 2010-05-17 | 2011-01-26 | 江成奎 | Electric engine principle demonstrator |
| KR20120108874A (en) * | 2011-03-26 | 2012-10-05 | 안선후 | Studying device by the electromagnetic induction theory |
| CN204288627U (en) * | 2014-12-02 | 2015-04-22 | 许言召 | DC electromotor principle demonstrator |
| CN204833841U (en) * | 2015-05-15 | 2015-12-02 | 刘绍家 | Teaching aid of demonstration dc motor theory of operation |
| CN106023769A (en) * | 2015-09-23 | 2016-10-12 | 刘绍家 | Motor and engine integrated teaching demonstration model |
| CN106023746A (en) * | 2015-10-02 | 2016-10-12 | 刘绍家 | Visual demonstration instrument for Lenz's law |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107622721A (en) * | 2017-09-22 | 2018-01-23 | 济南大学 | A kind of elastic potential energy generator experimental device |
| CN107622721B (en) * | 2017-09-22 | 2024-01-02 | 济南大学 | Elastic potential energy power generation experimental device |
| CN107564385A (en) * | 2017-10-10 | 2018-01-09 | 陕西舜洋电子科技有限公司 | A kind of vertical hydroelectric generator apparatus for demonstrating |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |
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| WD01 | Invention patent application deemed withdrawn after publication |