CN204833841U - Teaching aid of demonstration dc motor theory of operation - Google Patents
Teaching aid of demonstration dc motor theory of operation Download PDFInfo
- Publication number
- CN204833841U CN204833841U CN201520333965.2U CN201520333965U CN204833841U CN 204833841 U CN204833841 U CN 204833841U CN 201520333965 U CN201520333965 U CN 201520333965U CN 204833841 U CN204833841 U CN 204833841U
- Authority
- CN
- China
- Prior art keywords
- coil
- motor
- auto
- transductor
- commutator
- 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
Links
Landscapes
- Dc Machiner (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
The utility model provides a teaching aid of demonstration dc motor theory of operation, including base plate, presentation device, interior latent device. Be equipped with presentation device on the base plate, latent device in presentation device one side is equipped with. The utility model has the advantages of but the sight has a current conveyance that the naked eye was seen on the coil, and the coil rotates, and when forwarding the neutral surface to, visual on -line sense of current changes, and then the coil can last and rotates, coil revolution a week in magnetic field promptly, but twice sight the direction of current flow change, but change the change of coil pivoted orientation as sight the direction of current flow, change the change of coil pivoted direction as magnetic field direction, when the big microvariation of visual line current, the coil rotational speed changes. Be favorable to the relation between applied left hand rule judgement electric current atress direction of student and magnetic field direction, the the direction of current flow, deepen to understand the structure and the theory of operation of motor.
Description
[technical field]
The utility model relates to a kind of teaching aid of motor principle of work, particularly relates to the teaching aid of a kind of demonstration d. c. motor principle of work.
[background technology]
In Middle School Physics class, the teaching of " direct current motor principle of work " is an important content, but student understands difficulty to the structure of motor and principle, especially understands difficulty to the electric current rule that Impact direction changes in magnetic field.And when utilizing its principle of model demonstration of existing motor, the change student of electric current and direction of current cannot see and can not touch, teacher can only be listened to lecture, understand with the imagination, can not form perceptual knowledge, teaching efficiency is general, if design hot-wire coil in magnetic field during Forced rotation, the direction that student is rotated by sense of current and coil on " visible light " energy direct visual perception to coil, is just easy to structure and the principle of work of grasping direct current motor, receives the teaching efficiency of getting twice the result with half the effort.
[utility model content]
When the purpose of this utility model is structure and the principle solving instruction direct current motor, the change student of electric current and direction of current cannot see and can not touch, teacher can only be listened to lecture, understand with the imagination, perceptual knowledge can not be formed, the deficiency that teaching efficiency is general and the teaching aid of a kind of novel demonstration d. c. motor's principle of work provided.
The utility model is achieved through the following technical solutions: the teaching aid of a kind of demonstration d. c. motor principle of work, and comprise substrate, apparatus for demonstrating, interior hidden device, described substrate is provided with apparatus for demonstrating, and described apparatus for demonstrating side is provided with interior hidden device.
Further, described apparatus for demonstrating comprises the first support, second support, 3rd support, rotating shaft, commutator, coil, magnet, brush, binding post, accumulator, described first support, second support, through there being a rotating shaft above 3rd support, the side rotating shaft of described first support is provided with a commutator, described commutator side is connected with a coil, described coil is separately installed with two contrary first visible light electric currents and the second visible light electric current, first visible light electric current and the second visible light electric current are connected to binding post, two binding posts connect accumulator by wire, brush is provided with above described binding post.
Further, described interior hidden device comprises the first auto transductor, the first automatic commutator, the second auto transductor, the second automatic commutator, motor, switch, power supply, described first auto transductor, the first automatic commutator connecting circuit board, difference connecting valve and power supply on described circuit board, described power supply is by circuit board connecting valve, connect the second auto transductor, the second automatic commutator respectively to motor by circuit board again, motor drives rotating shaft and coil to rotate.
Further, the auto transductor of described first auto transductor for a change visible light size of current, the automatic commutator of described first automatic commutator for a change visible light direction of current, the auto transductor of described second auto transductor for a change motor speed, the automatic commutator of described second automatic commutator for a change motor rotation direction.
Further, described substrate is insulated substrate.
Further, described apparatus for demonstrating plays demonstration.
The beneficial effects of the utility model are: the electric current having naked eyes to see when visible light on coil passes through, and coil rotates, when forwarding neutral surface to, on visible light, sense of current changes, then coil can continue to rotate, and namely coil often circles in magnetic field, and visible light direction of current changes twice; When visible light direction of current changes, the direction that coil rotates changes; When magnetic direction changes, the direction that coil rotates changes; When the change of visible light size of current, coil rotation speed change.Be conducive to student and apply the relation that left-hand rule judges between electric current Impact direction and magnetic direction, direction of current, the structure of the motor that sharpens understanding and principle of work.
[accompanying drawing explanation]
Fig. 1 is the teaching aid structure schematic diagram of the utility model demonstration d. c. motor principle of work;
Reference numeral: 1, substrate; 2, apparatus for demonstrating; 21, the first support; 22, the second support; 23, the 3rd support; 24, rotating shaft; 25, commutator; 26, coil; 27, magnet; 28, brush; 29, binding post; 30, accumulator; 3, interior hidden device; 310 first auto transductors; 311, the first automatic commutator; 312, the second auto transductor; 313, the second automatic commutator; 314, motor; 315, switch; 316, power supply; 317, circuit board;
[embodiment]
Below in conjunction with the drawings and the specific embodiments, the utility model is described further:
As shown in Figure 1, the teaching aid of a kind of demonstration d. c. motor principle of work, comprise substrate 1, apparatus for demonstrating 2, interior hidden device 3, described substrate 1 is provided with apparatus for demonstrating 2, and described apparatus for demonstrating 2 side is provided with interior hidden device 3.
Preferably, described apparatus for demonstrating 2 comprises the first support 21, second support 22, 3rd support 23, rotating shaft 24, commutator 25, coil 26, magnet 27, brush 28, binding post 29, accumulator 30, described first support 21, second support 21, through there being a rotating shaft 24 above 3rd support 23, the side rotating shaft 24 of described first support 21 is provided with a commutator 25, described commutator 25 side is connected with a coil 26, described coil 26 is separately installed with two contrary first visible light electric currents and the second visible light electric current, first visible light electric current and the second visible light electric current are connected to binding post 29, two binding posts 29 connect accumulator 30 by wire, brush 28 is provided with above described binding post 29.
Preferably, described interior hidden device 3 comprises the first auto transductor 310, first automatic commutator 311, second auto transductor 312, second automatic commutator 313, motor 314, switch 315, power supply 316, described first auto transductor 310, first automatic commutator 311 connecting circuit board, difference connecting valve 315 and power supply 316 on described circuit board 317, described power supply 316 is by circuit board 317 connecting valve 315, the second auto transductor 312 is connected respectively again by circuit board 317, second automatic commutator 313 powers to motor 314, motor 314 drives rotating shaft 24 and coil 26 to rotate.
Preferably, the auto transductor of described first auto transductor 310 for a change visible light size of current, the automatic commutator of described first automatic commutator 311 for a change visible light direction of current, the auto transductor of described second auto transductor 312 for a change motor speed, the automatic commutator of described second automatic commutator 313 for a change motor rotation direction.
Preferably, described substrate 1 is insulated substrate.
Preferably, described apparatus for demonstrating 2 plays demonstration.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and amendment to above-mentioned embodiment.Therefore, the utility model is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.In addition, although employ some specific terms in this instructions, these terms just for convenience of description, do not form any restriction to the utility model.
Claims (4)
1. a teaching aid for demonstration d. c. motor's principle of work, is characterized in that: comprise substrate, apparatus for demonstrating, interior hidden device, described substrate is provided with apparatus for demonstrating, and described apparatus for demonstrating side is provided with interior hidden device;
Described apparatus for demonstrating comprises the first support, second support, 3rd support, rotating shaft, commutator, coil, magnet, brush, binding post, accumulator, described first support, second support, through there being a rotating shaft above 3rd support, the side rotating shaft of described first support is provided with a commutator, described commutator side is connected with a coil, described coil is separately installed with two contrary first " visible light " electric currents and second " visible light " electric current, first " visible light " electric current and second " visible light " electric current are connected to binding post, two binding posts connect accumulator by wire, brush is provided with above described binding post,
Described interior hidden device comprises the first auto transductor, the first automatic commutator, the second auto transductor, the second automatic commutator, motor, switch, power supply, described first auto transductor, the first automatic commutator connecting circuit board, difference connecting valve and power supply on described circuit board, described power supply is by circuit board connecting valve, connect the second auto transductor, the second automatic commutator respectively to motor by circuit board again, motor drives rotating shaft and coil to rotate.
2. the teaching aid of demonstration d. c. motor according to claim 1 principle of work, it is characterized in that: the auto transductor of described first auto transductor for a change " visible light " size of current, the automatic commutator of described first automatic commutator for a change " visible light " direction of current, the auto transductor of described second auto transductor for a change motor speed, the automatic commutator of described second automatic commutator for a change motor rotation direction.
3. the teaching aid of demonstration d. c. motor according to claim 1 principle of work, is characterized in that: described substrate is insulated substrate.
4. the teaching aid of demonstration d. c. motor according to claim 1 principle of work, is characterized in that: described apparatus for demonstrating plays demonstration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520333965.2U CN204833841U (en) | 2015-05-15 | 2015-05-15 | Teaching aid of demonstration dc motor theory of operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520333965.2U CN204833841U (en) | 2015-05-15 | 2015-05-15 | Teaching aid of demonstration dc motor theory of operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204833841U true CN204833841U (en) | 2015-12-02 |
Family
ID=54691414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520333965.2U Expired - Fee Related CN204833841U (en) | 2015-05-15 | 2015-05-15 | Teaching aid of demonstration dc motor theory of operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204833841U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448379A (en) * | 2016-10-19 | 2017-02-22 | 济南大学 | AC generator principle demonstration instrument |
| CN109727515A (en) * | 2019-03-06 | 2019-05-07 | 张嘉馨 | A kind of magnetic line of force and the visual generator model of current direction |
-
2015
- 2015-05-15 CN CN201520333965.2U patent/CN204833841U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448379A (en) * | 2016-10-19 | 2017-02-22 | 济南大学 | AC generator principle demonstration instrument |
| CN109727515A (en) * | 2019-03-06 | 2019-05-07 | 张嘉馨 | A kind of magnetic line of force and the visual generator model of current direction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203966412U (en) | A kind of double current generator principle best explain teaching apparatus | |
| CN204833841U (en) | Teaching aid of demonstration dc motor theory of operation | |
| CN204288627U (en) | DC electromotor principle demonstrator | |
| CN202413113U (en) | Anti-reflecting blackboard | |
| CN106023769A (en) | Motor and engine integrated teaching demonstration model | |
| CN207833752U (en) | A kind of demonstration instrument that can demonstrate solar energy and electric magnetisation principle | |
| CN201084300Y (en) | A device for demonstrating electromagnetic induction | |
| CN206893156U (en) | A kind of law of electromagnetic induction teaching aid | |
| CN107248358A (en) | One kind visualization circuit arrangement | |
| CN206293070U (en) | A kind of Alternator Principle apparatus for demonstrating | |
| CN205993998U (en) | A kind of classroom instruction mobile phone placement frame | |
| CN202008768U (en) | Wind-driven generator simulation demonstration instrument | |
| CN106157765A (en) | A kind of teaching aid of demonstration d. c. motor operation principle | |
| CN106448379A (en) | AC generator principle demonstration instrument | |
| CN204990941U (en) | Two quick -witted integrative teaching demonstration model in motor and generator | |
| CN205670406U (en) | A kind of variable magnetic field motor experimental provision | |
| CN207008936U (en) | It is a kind of to impart knowledge to students with the improvement device for probing into Faraday's disc dynamo | |
| CN202838809U (en) | Earth rotation and revolution demonstrating device for geographical teaching | |
| CN206516198U (en) | A kind of ampere force presentation interactive device suitable for science popularization venue | |
| CN203910159U (en) | Teaching practical-training device of brushless engine | |
| CN105303937B (en) | A kind of double current generator principle explains teaching apparatus comprehensively | |
| CN204680266U (en) | The teaching demonstration device at angle | |
| CN205038849U (en) | Teaching notes frame device of flexible bracing piece in area that convenient real standard teaching was used | |
| CN103985308B (en) | A kind of Multiple coil brushless motor teaching training apparatus | |
| CN106373468A (en) | Alternating current generator principle demonstration device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20190515 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |