CN206893156U - A kind of law of electromagnetic induction teaching aid - Google Patents
A kind of law of electromagnetic induction teaching aid Download PDFInfo
- Publication number
- CN206893156U CN206893156U CN201720407945.4U CN201720407945U CN206893156U CN 206893156 U CN206893156 U CN 206893156U CN 201720407945 U CN201720407945 U CN 201720407945U CN 206893156 U CN206893156 U CN 206893156U
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- electric wires
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- swingle
- annular coil
- coil
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Abstract
Teaching demonstration appliance technology, more particularly to a kind of law of electromagnetic induction teaching aid are the utility model is related to, rocking bar drives driving gear to rotate, and driving gear drives swingle to rotate by driven gear；Annular coil is fixed on swingle by fixed cover with annular coil support, is realized swingle and is driven annular coil to rotate；Use varying strength magnet instead, thus it is possible to vary the intensity of the magnetic induction line of annular coil cutting；The length of annular coil cutting magnetic induction line can be changed by being slided by magnet in magnet chute；A brushes and B brushes on brush support seat coordinate with commutator, electric current is turned into directional current；A electric wires connect C electric wires, B electric wires connection D electric wires, the electric current on wiring board is formed loop；Control A switches can control powers to galvanometer and small bulbs；Control B switches can control the power supply to electric magnetisation coil；Compass is located at beside electric magnetisation coil, can be judged when being powered by compass electric magnetisation coil whether magnetisation.
Description
Technical field
It the utility model is related to teaching aid technical field, more particularly to a kind of law of electromagnetic induction teaching aid.
Background technology
Teacher of physics is usually told about and the side for demonstration of being mapped on blackboard when professor's electricity is with the relation of magnetic with oral
Formula, this mode is very abstract, and is not easy to allow people to understand, causes student big to electricity and the difficulty of magnetic understanding, teacher's
It is low to lecture efficiency.
Utility model content
Technical problem to be solved in the utility model, it is to be directed to above-mentioned technical deficiency, there is provided a kind of electromagnetism
Induction law teaching aid, drive driving gear to rotate by the rocking bar on rocker bracket, can pass through driving gear driven
Gear drives swingle to rotate；Annular coil is fixed on swingle by fixed cover with annular coil support, realizes swingle
Annular coil is driven to rotate；The rotation of annular coil can be with the magnetic induction line between septum magnet；Use varying strength magnet instead, can be with
Change the intensity of the magnetic induction line of annular coil cutting；A brushes and B brushes on brush support seat coordinate with commutator, make electric current
As directional current；A electric wires connect C electric wires, B electric wires connection D electric wires, the electric current on wiring board is formed loop；Control A switches
It can control and be powered to galvanometer and small bulbs；Control B switches can control the power supply to electric magnetisation coil；Compass is located at electricity
Beside magnetisation coil, can be judged when being powered by compass electric magnetisation coil whether magnetisation.
In order to solve the above technical problems, technical scheme is used by the utility model：Including base and wiring board；Base
One end is provided with rocker bracket；Rocker bracket upper end is provided with rocking bar；Driving gear is fixedly connected with rocking bar；In rocker bracket
Portion is set with swingle；One end of swingle is installed with driven gear；The other end of swingle is sleeved on swingle support
On；The middle part of swingle connects one end of annular coil by fixed cover；The other end of annular coil passes through annular coil support
It is sleeved on swingle；The both sides of annular coil are provided with magnet；Magnet is slidably connected in the magnet chute on base；It is ring-like
The side of swingle support is provided with commutator on coil brace；The side of commutator is provided with A brushes；Commutator it is another
Side is provided with B brushes；The outer end of A brushes and B brushes is set with brush support seat；A brushes are connected with one end of A electric wires；B
Brush is connected with one end of B electric wires；Wiring board upper end side is provided with C electric wires；Wiring board upper end opposite side is provided with D electric wires；C
One end of galvanometer is connected with the middle part of electric wire by electric wire；The other end of galvanometer is connected with one end of small bulbs by electric wire；
The other end of small bulbs is connected with one end of A switches by electric wire；One end of A switches is connected with D electric wires；C electric wires and D electric wires
End is connected with electric magnetisation coil；Compass is provided with beside electric magnetisation coil；D electric wires are provided with B switches close to end.
Further optimize the technical program, the other end of described A electric wires is connected with the top of C electric wires；B electric wires it is another
End is connected with the top of D electric wires.
Further optimize the technical program, the material of described brush support seat is rubber.
Compared with prior art, the utility model has advantages below：
1st, by the way of the A brushes on brush support seat and B brushes are engaged with commutator, electric current is made to turn into orientation electricity
Stream；
2nd, C electric wires are connected using A electric wires, B electric wires connection D electric wires, the electric current on wiring board is formed loop；
3rd, by using varying strength magnet instead, thus it is possible to vary the intensity of the magnetic induction line of annular coil cutting；
4th, compass is located at beside electric magnetisation coil, whether can simply judges very much electric magnetisation coil when being powered
Magnetisation.
Brief description of the drawings
Fig. 1 is a kind of law of electromagnetic induction teaching aid top view.
Fig. 2 is a kind of law of electromagnetic induction teaching aid left view.
Fig. 3 is a kind of law of electromagnetic induction teaching aid right view.
In figure：1st, base；2nd, wiring board；3rd, rocker bracket；4th, rocking bar；5th, driving gear；6th, swingle；7th, driven tooth
Wheel；8th, swingle support；9th, fixed cover；10th, annular coil；11st, annular coil support；12nd, magnet；13rd, magnet chute；14、
Commutator；15th, A brushes；16th, B points brush；17th, brush support seat；18th, A electric wires；19th, B electric wires；20th, C electric wires；21st, D electric wires；
22nd, galvanometer；23rd, small bulbs；24th, A is switched；25th, electric magnetisation coil；26th, compass；27th, B is switched.
Embodiment
To make the purpose of this utility model, technical scheme and advantage of greater clarity, with reference to embodiment
And referring to the drawings, the utility model is further described.It should be understood that these descriptions are merely illustrative, and do not really want
Limit the scope of the utility model.In addition, in the following description, the description to known features and technology is eliminated, to avoid not
Necessarily obscure concept of the present utility model.
Embodiment one：With reference to shown in Fig. 1-3, a kind of law of electromagnetic induction teaching aid, including base 1 and circuit
Plate 2；The one end of base 1 is provided with rocker bracket 3；The upper end of rocker bracket 3 is provided with rocking bar 4；Driving tooth is fixedly connected with rocking bar 4
Wheel 5；The middle part of rocker bracket 3 is set with swingle 6；One end of swingle 6 is installed with driven gear 7；Swingle 6 it is another
End is sleeved on swingle support 8；The middle part of swingle 6 connects one end of annular coil 10 by fixed cover 9；Annular coil 10
The other end be sleeved on by annular coil support 11 on swingle 6；The both sides of annular coil 10 are provided with magnet 12；Magnet 12
It is slidably connected in the magnet chute 13 on base 1；It is provided with and changes close to the side of swingle support 8 on annular coil support 11
To device 14；The side of commutator 14 is provided with A brushes 15；The opposite side of commutator 14 is provided with B brushes 16；A brushes 15 and B electricity
The outer end of brush 16 is set with brush support seat 17；A brushes 15 are connected with one end of A electric wires 18；B brushes 16 are connected with B electric wires
19 one end；The upper end side of wiring board 2 is provided with C electric wires 20；The upper end opposite side of wiring board 2 is provided with D electric wires 21；C electric wires 20
Middle part is connected with one end of galvanometer 22 by electric wire；The other end of galvanometer 22 is connected with the one of small bulbs 23 by electric wire
End；The other end of small bulbs 23 is connected with one end of A switches 24 by electric wire；One end of A switches 24 is connected with D electric wires 21；C electricity
The end of line 20 and D electric wires 21 is connected with electric magnetisation coil 25；The electric side of magnetisation coil 25 is provided with compass 26；D electric wires 21
End is provided with B switches 27；The other end of A electric wires 18 is connected with the top of C electric wires 20；The other end and D of B electric wires 19
The top of electric wire 21 is connected；The material of brush support seat 17 is rubber.
The utility model drives driving gear 5 to rotate in the specific implementation, by the rocking bar 4 on rocker bracket 3, can make
Driving gear 5 drives swingle 6 to rotate by driven gear 7, and the diameter of driving gear 5 is more than driven gear 7, forms booster engine
Structure, the rotating speed of driven gear 7 is more than the rotating speed of rocking bar 4, so that loop coil 10 is with higher speed cutting magnetic induction line；Fixed cover
9 are fixed on annular coil 10 on swingle 6 with annular coil support 11, realize swingle 6 and drive annular coil 10 to rotate；
The both sides of annular coil 10 are provided with magnet 12, and being slided by magnet 12 in magnet chute 13 can change at annular coil 10
Position in magnet 12, the length of the cutting magnetic induction line of annular coil 10 can be changed；The He of A brushes 15 on brush support seat 17
B brushes 16 coordinate with commutator 14, electric current is turned into directional current；A electric wires 18 connect C electric wires 20, and B electric wires 19 connect D electric wires
21, the electric current on wiring board 2 is formed loop；Control A switches 24 can control powers to galvanometer 22 and small bulbs 23；Control
B switches 27 can control the power supply to electric magnetisation coil 25；Compass 26 is located at the side of electric magnetisation coil 25, can be with when being powered
By compass 26 judge electric magnetisation coil 25 whether magnetisation；By using varying strength magnet 12 instead, thus it is possible to vary annular coil
The intensity of the magnetic induction line of 10 cuttings.
It should be appreciated that above-mentioned embodiment of the present utility model is used only for exemplary illustration or explains this reality
With new principle, without forming to limitation of the present utility model.Therefore, without departing from spirit and scope of the present utility model
In the case of any modification, equivalent substitution and improvements done etc., should be included within the scope of protection of the utility model.In addition,
The appended claims for the utility model are intended to fall into scope and border or this scope and border
Whole in equivalents changes and modifications example.
Claims (3)
- A kind of 1. law of electromagnetic induction teaching aid, it is characterised in that：Including base (1) and wiring board (2)；Base (1) one end It is provided with rocker bracket (3)；Rocker bracket (3) upper end is provided with rocking bar (4)；Rocking bar is fixedly connected with driving gear on (4) (5)；Swingle (6) is set with the middle part of rocker bracket (3)；One end of swingle (6) is installed with driven gear (7)；Rotation The other end of bar (6) is sleeved on swingle support (8)；The middle part of swingle (6) connects annular coil by fixed cover (9) (10) one end；The other end of annular coil (10) is sleeved on swingle (6) by annular coil support (11)；Annular coil (10) both sides are provided with magnet (12)；Magnet (12) is slidably connected at the magnet chute (13) on base (1) Nei；Annular coil Side on support (11) close to swingle support (8) is provided with commutator (14)；The side of commutator (14) is provided with A brushes (15)；The opposite side of commutator (14) is provided with B brushes (16)；The outer end of A brushes (15) and B brushes (16) is set with brush Support base (17)；A brushes (15) are connected with one end of A electric wires (18)；B brushes (16) are connected with one end of B electric wires (19)；Circuit Plate (2) upper end side is provided with C electric wires (20)；Wiring board（2）Upper end opposite side is provided with D electric wires (21)；In the middle part of C electric wires (20) One end of galvanometer (22) is connected with by electric wire；The other end of galvanometer (22) is connected with the one of small bulbs (23) by electric wire End；The other end of small bulbs (23) is connected with one end of A switches (24) by electric wire；One end of A switches (24) is connected with D electric wires (21)；The end of C electric wires (20) and D electric wires (21) is connected with electric magnetisation coil (25)；It is provided with beside electric magnetisation coil (25) Compass (26)；D electric wires (21) are provided with B switches (27) close to end.
- A kind of 2. law of electromagnetic induction teaching aid according to claim 1, it is characterised in that：A electric wires (18) it is another End is connected with the top of C electric wires (20)；The other end of B electric wires (19) is connected with the top of D electric wires (21).
- A kind of 3. law of electromagnetic induction teaching aid according to claim 1, it is characterised in that：Brush support seat (17) Material is rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720407945.4U CN206893156U (en) | 2017-04-18 | 2017-04-18 | A kind of law of electromagnetic induction teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720407945.4U CN206893156U (en) | 2017-04-18 | 2017-04-18 | A kind of law of electromagnetic induction teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206893156U true CN206893156U (en) | 2018-01-16 |
Family
ID=61324038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720407945.4U Expired - Fee Related CN206893156U (en) | 2017-04-18 | 2017-04-18 | A kind of law of electromagnetic induction teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206893156U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831265A (en) * | 2018-07-09 | 2018-11-16 | 陈继珍 | A kind of physical teaching aid and teaching method for electromagnetic induction demonstration |
| CN114758568A (en) * | 2022-04-12 | 2022-07-15 | 南通大学 | Magnetic induction wire cutting test device for magnetic force test through electromagnetic induction |
-
2017
- 2017-04-18 CN CN201720407945.4U patent/CN206893156U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831265A (en) * | 2018-07-09 | 2018-11-16 | 陈继珍 | A kind of physical teaching aid and teaching method for electromagnetic induction demonstration |
| CN108831265B (en) * | 2018-07-09 | 2020-07-07 | 武汉利睿合网络科技有限公司 | Physical teaching aid and teaching method for electromagnetic induction demonstration |
| CN114758568A (en) * | 2022-04-12 | 2022-07-15 | 南通大学 | Magnetic induction wire cutting test device for magnetic force test through electromagnetic induction |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180116 Termination date: 20180418 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |