CN203966412U - A kind of double current generator principle best explain teaching apparatus - Google Patents
A kind of double current generator principle best explain teaching apparatus Download PDFInfo
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- CN203966412U CN203966412U CN201420391394.3U CN201420391394U CN203966412U CN 203966412 U CN203966412 U CN 203966412U CN 201420391394 U CN201420391394 U CN 201420391394U CN 203966412 U CN203966412 U CN 203966412U
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Abstract
The utility model provides a kind of double current generator principle best explain teaching apparatus, comprise insulated substrate, apparatus for demonstrating, interior hidden device, described insulated substrate is provided with apparatus for demonstrating, described apparatus for demonstrating right side is provided with interior hidden device, the beneficial effects of the utility model are: when coil does cutting magnetic induction line rotation in magnetic field, can observe directly generation current on coil by naked eyes, on coil, the direction of current of sense of current and output rotates and changes with coil, student is just easy to grasp the principle of double current generator and the rule that direction of current changes, can receive the teaching efficiency of getting twice the result with half the effort.
Description
[technical field]
The present invention relates to a kind of apparatus for demonstrating of double current generator principle, relate in particular to a kind of teaching apparatus of double current generator principle best explain teaching use.
[background technology]
In Middle School Physics class, the teaching of " double current generator principle of work ", is an important content, but structure and the principle of student to alternator and Dyn. understood difficulty, and the rule especially direction of current being changed is understood difficulty.And while utilizing its principle of model demonstration of existing generator, the variation student of electric current and direction of current cannot see and can not touch, and can only listen teacher to lecture, understand with the imagination, can not form perceptual knowledge, teaching efficiency is average.
If design coil in magnetic field, do cutting magnetic induction line rotate time, student can naked eyes observes directly the direction of current of sense of current and output on generation current on coil, coil and rotates and change with coil, just be easy to grasp the principle of double current generator and the rule that direction of current changes, receive the teaching efficiency of getting twice the result with half the effort.
[summary of the invention]
The object of the invention is to solve while utilizing at present its principle of model demonstration of existing generator, the variation student of electric current and direction of current cannot see and can not touch, can only listen teacher to lecture, understand with the imagination, can not form perceptual knowledge, the deficiency that teaching efficiency is average and a kind of double current generator principle of the one that provides best explain teaching apparatus.
The present invention is achieved through the following technical solutions: a kind of double current generator principle best explain teaching apparatus, comprise insulated substrate, apparatus for demonstrating, interior hidden device, described insulated substrate is provided with apparatus for demonstrating, and described apparatus for demonstrating right side is provided with interior hidden device;
Described apparatus for demonstrating comprises the first support, the second support, the 3rd support, rotating shaft, commutator, copper slip ring, coil, magnet, brush, little metal slip ring, binding post, described the first support, the second support, the 3rd support top is through there being a rotating shaft, the right-hand member of described rotating shaft is connected with a rocking handle, described, the right side rotating shaft of the first support is provided with a commutator and copper slip ring, described commutator and copper slip ring right side are connected with a coil, described coil is separately installed with two contrary First Line loop current visible lights and the second coil current visible light, described the first support is provided with two binding posts, on described binding post, cover has little metal slip ring, described little metal slip ring is provided with brush, described brush is connected with commutator or copper slip ring respectively, be provided with a bulb in the first support left side, described bulb is connected with the first bulb current visible line, the second bulb current visible line, the 3rd bulb current visible line, article three, bulb current visible line is connected with bulb zero line binding post with bulb firewire binding post respectively, and two binding posts on described the first support are connected with bulb zero line binding post with bulb firewire binding post by insulated wire respectively.Described apparatus for demonstrating has been the effect of demonstration, and itself is generation current not;
Described interior hidden device comprises inverter, described inverter comprises coil power supply commutator, bulb and bulb current visible line power supply commutator, described coil power supply commutator is cylindrical, being positioned at described coil right side is linked in rotating shaft, described coil power supply commutator sidewall is provided with two vertical-shaped metal contact pieces, on the sidewall on the opposite of described coil power supply commutator, be also provided with two vertical-shaped metal contact pieces, mutually insulated between described metal contact piece, described two vertical-shaped metal contact piece belows are provided with two coil power supply brushes, described two coil power supply brushes respectively with the live wire of external 220V voltage, zero line is connected, First Line loop current visible light on the described coil respectively metal contact piece vertical-shaped with two is connected, described the second coil current visible light respectively metal contact piece vertical-shaped with two of opposite is connected, external 220V power supply powers respectively to First Line loop current visible light and the second coil current visible light, can see sense of current in visible light,
Bulb and bulb current visible line power supply commutator are cylindrical, between the second support and the 3rd support, the sidewall of described bulb and bulb current visible line power supply commutator left end is provided with the first metal contact piece, the first metal contact piece below is provided with two the first bulb powered brushes, and two the first bulb powered brushes are connected on external 220V power firestreak and with the first bulb current visible line and are electrically connected; Described the second metal contact piece is positioned at the bulb powered commutator back side and the first metal contact piece staggers, described the second metal contact piece side is provided with two the second bulb powered brushes, and described two the second bulb powered brushes are connected on external 220V power firestreak and with the second bulb current visible line and are electrically connected; Described the 3rd metal contact piece is positioned at described the second metal contact piece right side, described the 3rd metal contact piece is two sheet metals that pros and cons is corresponding, described the 3rd metal contact piece below is provided with two the 3rd bulb powered brushes, and described two the 3rd bulb powered brushes are connected on external 220V power firestreak and with the 3rd bulb current visible line and are electrically connected;
Alternative electric generation state, moves to the brush on the first support with two copper slip rings and contacts.After switching on power, shake rocking handle, First Line loop current visible light is lighted, and can see sense of current in coil, and external power supply is electrically connected the first bulb current visible line by the first metal contact piece, bulb is lighted, the first bulb current visible line is lighted, and can see the direction of current in the first bulb current visible line, when continuation shake rocking handle makes coil vertical with magnet, in coil, current visible line extinguishes
Bulb extinguishes, bulb current visible line all extinguishes, illustrate and now do not have electric current to produce, when continuing after rotation, First Line loop current visible light extinguishes, the second coil current visible light is lighted, can see in coil that sense of current is with contrary before, external power supply is electrically connected the second bulb current visible line by the second metal contact piece, bulb is lighted, the first bulb current visible line extinguishes, and the second bulb current visible line is lighted, and can see direction of current in the second bulb current visible line and opposite direction before;
DC generation state, moves to the brush on the first support with two commutators and contacts.Close the power supply of the first bulb powered brush and the second bulb powered brush, open the power supply of the 3rd bulb powered brush, shake rocking handle, can see when in coil, sense of current is with alternating current consistent, the 3rd bulb current visible line is lighted, and the direction of current of bulb electric current and visible light only flows towards a direction.
Beneficial effect of the present invention is: when coil does cutting magnetic induction line rotation in magnetic field, can naked eyes observing directly the direction of current of sense of current and output on generation current on coil, coil rotates and changes with coil, just be easy to grasp the principle of double current generator and the rule that direction of current changes, receive the teaching efficiency of getting twice the result with half the effort.
[brief description of the drawings]
Fig. 1 is double current generator principle best explain teaching apparatus structural representation of the present invention;
[embodiment]
Below in conjunction with the drawings and the specific embodiments, the present invention is described further:
As shown in Figure 1, a kind of double current generator principle best explain teaching apparatus, comprises insulated substrate 1, apparatus for demonstrating 2, interior hidden device 4, and described insulated substrate 1 is provided with apparatus for demonstrating 2, and described apparatus for demonstrating right side is provided with interior hidden device 4;
Described apparatus for demonstrating 2 comprises the first support 21, the second support 22, the 3rd support 23, rotating shaft 24, copper slip ring 25, commutator 251, coil 26, magnet 27, brush 28, little metal slip ring 29, binding post 30, described the first support 21, the second support 22, the 3rd support 23 tops are through there being a rotating shaft 24, the right-hand member of described rotating shaft 24 is connected with a rocking handle 31, described, the right side rotating shaft of the first support 21 is provided with a bronze medal slip ring 25, commutator 251, described commutator 251 and copper slip ring 25 right sides are connected with a coil 26, described coil 26 is separately installed with two contrary First Line loop current visible lights 261 and the second coil current visible light 262, described the first support 21 is provided with two binding posts 30, on described binding post 30, cover has little metal slip ring 29, described little metal slip ring 29 is provided with brush 28, described brush 28 contacts with copper slip ring 25 or commutator 251 respectively, be provided with a bulb 32 in the first support 21 left sides, described bulb 32 is connected with the first bulb current visible line 321, the second bulb current visible line 322, the 3rd bulb current visible line 323, article three, bulb current visible line is connected with bulb zero line binding post with bulb firewire binding post respectively, two binding posts on described the first support 21 are connected with bulb zero line binding post with bulb firewire binding post by insulated wire respectively, described apparatus for demonstrating has been the effect of demonstration, and itself is generation current not,
Described interior hidden device 4 comprises inverter 41, described inverter 41 comprises coil power supply commutator 42, bulb powered commutator 43, described coil power supply commutator 42 is cylindrical, being positioned at described coil 26 right sides is linked in rotating shaft 24, described coil power supply commutator 42 sidewalls are provided with two vertical-shaped metal contact pieces, on the sidewall on the opposite of described coil power supply commutator 42, be also provided with two vertical-shaped metal contact pieces, mutually insulated between described metal contact piece, described two vertical-shaped metal contact piece belows are provided with two coil power supply brushes 421, described two coil power supply brushes 421 respectively with the live wire of external 220V voltage, zero line is connected, First Line loop current visible light 261 on the described coil respectively metal contact piece vertical-shaped with two is connected, described the second coil current visible light 262 respectively metal contact piece vertical-shaped with two of opposite is connected, external 220V power supply powers respectively to First Line loop current visible light 261 and the second coil current visible light 262, can see sense of current in visible light,
Bulb powered commutator 43 is cylindrical, between the second support 22 and the 3rd support 23, the sidewall of described bulb powered commutator 43 left ends is provided with the first metal contact piece 431, the first metal contact piece 431 belows are provided with two the first bulb powered brushes, and two the first bulb powered brushes are connected on external 220V power firestreak and with the first bulb current visible line 321 and are electrically connected; Described the second metal contact piece 432 is positioned at bulb powered commutator 43 back sides and the first metal contact piece 431 staggers, described the second metal contact piece 432 sides are provided with two the second bulb powered brushes, and described two the second bulb powered brushes are connected on external 220V power firestreak and with the second bulb current visible line 322 and are electrically connected; Described the 3rd metal contact piece 433 is positioned at described the second metal 432 contact right sides, described the 3rd metal contact piece 433 is two sheet metals that pros and cons is corresponding, described the 3rd metal contact piece 433 belows are provided with two the 3rd bulb powered brushes, and described two the 3rd bulb powered brushes are connected on external 220V power firestreak and with the 3rd bulb current visible line 323 and are electrically connected;
Alternative electric generation state, demonstration moves to the brush 28 on the first support 21 with two copper slip rings 25 and contacts.After switching on power, shake rocking handle 31, First Line loop current visible light 261 is lighted, can see sense of current in coil, external power supply is electrically connected the first bulb current visible line 321 by the first metal contact piece 431, bulb 32 is lighted, the first bulb current visible line 321 is lighted, can see the direction of current in the first bulb current visible line 321, when continuation shake rocking handle 31 makes coil vertical with magnet, in coil, current visible line extinguishes, bulb 32 extinguishes, bulb current visible line all extinguishes, illustrate and now do not have electric current to produce, when continuing after rotation, First Line loop current visible light 261 extinguishes, the second coil current visible light 262 is lighted, can see in coil that sense of current is with contrary before, external power supply is electrically connected the second bulb current visible line 322 by the second metal contact piece 432, bulb 32 is lighted, the first bulb current visible line 321 extinguishes, the second bulb current visible line 322 is lighted, can see direction of current in the second bulb current visible line 322 and opposite direction before,
DC generation state, demonstration moves to the brush 28 on the first support 21 with commutator 251 and contacts.Close the power supply of the first bulb powered brush and the second bulb powered brush, open the power supply of the 3rd bulb powered brush, shake rocking handle 31, can see when in coil, sense of current is with alternating current consistent, the 3rd bulb current visible line 323 is lighted, and the direction of current of bulb and visible light only flows towards a direction.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also carry out suitable change and amendment to above-mentioned embodiment.Therefore, the present invention is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.In addition,, although used some specific terms in this instructions, these terms just for convenience of description, do not form any restriction to the present invention.
Claims (1)
1. a double current generator principle best explain teaching apparatus, is characterized in that: comprise insulated substrate, apparatus for demonstrating, interior hidden device, described insulated substrate is provided with apparatus for demonstrating, and described apparatus for demonstrating right side is provided with interior hidden device;
Described apparatus for demonstrating comprises the first support, the second support, the 3rd support, rotating shaft, commutator, copper slip ring, coil, magnet, brush, little metal slip ring, binding post, described the first support, the second support, the 3rd support top is through there being a rotating shaft, the right-hand member of described rotating shaft is connected with a rocking handle, described, the right side rotating shaft of the first support is provided with a commutator and copper slip ring, described commutator and copper slip ring right-hand member are connected with a coil, described coil is separately installed with two contrary First Line loop current visible lights and the second coil current visible light, described the first support is provided with two binding posts, on described binding post, cover has little metal slip ring, described little metal slip ring is provided with brush, described brush is connected with commutator or copper slip ring respectively, be provided with a bulb in the first support left side, described bulb is connected with the first bulb current visible line, the second bulb current visible line, the 3rd bulb current visible line, article three, bulb current visible line is connected with bulb zero line binding post with bulb firewire binding post respectively, two binding posts on described the first support are connected with bulb zero line binding post with bulb firewire binding post by insulated wire respectively, described apparatus for demonstrating has been the effect of demonstration, and itself is generation current not,
Described interior hidden device comprises inverter, described inverter comprises coil power supply commutator, bulb and bulb current visible line power supply commutator, described coil power supply commutator is cylindrical, being positioned at described coil right side is linked in rotating shaft, described coil power supply commutator sidewall is provided with two vertical-shaped metal contact pieces, on the sidewall on the opposite of described coil power supply commutator, be also provided with two vertical-shaped metal contact pieces, mutually insulated between described metal contact piece, described two vertical-shaped metal contact piece belows are provided with two coil power supply brushes, described two coil power supply brushes respectively with the live wire of external 220V voltage, zero line is connected, First Line loop current visible light on the described coil respectively metal contact piece vertical-shaped with two is connected, described the second coil current visible light respectively metal contact piece vertical-shaped with two of opposite is connected, external 220V power supply can be given the power supply of First Line loop current visible light, can see sense of current in visible light,
Bulb and bulb current visible line power supply commutator are cylindrical, between the second support and the 3rd support, the sidewall of described bulb and bulb current visible line power supply commutator left end is provided with the first metal contact piece, the first metal contact piece below is provided with two the first bulb powered brushes, and two the first bulb powered brushes are connected on external 220V power firestreak and with the first bulb current visible line and are electrically connected; The second metal contact piece is positioned at the bulb powered commutator back side and the first metal contact piece staggers, described the second metal contact piece side is provided with two the second bulb powered brushes, and described two the second bulb powered brushes are connected on external 220V power firestreak and with the second bulb current visible line and are electrically connected; The 3rd metal contact piece is positioned at described the second metal contact piece right side, described the 3rd metal contact piece is two sheet metals that pros and cons is corresponding, described the 3rd metal contact piece below is provided with two the 3rd bulb powered brushes, and described two the 3rd bulb powered brushes are connected on external 220V power firestreak and with the 3rd bulb current visible line and are electrically connected;
Alternative electric generation state, moves to the brush on the first support with two copper slip rings and contacts, after switching on power, shake rocking handle, First Line loop current visible light is lighted, and can see sense of current in coil, and external power supply is electrically connected the first bulb current visible line by the first metal contact piece, bulb is lighted, the first bulb current visible line is lighted, and can see the direction of current in the first bulb current visible line, when continuation shake rocking handle makes coil vertical with magnet, in coil, current visible line extinguishes
Bulb extinguishes, bulb current visible line all extinguishes, illustrate and now do not have electric current to produce, when continuing after rotation, First Line loop current visible light extinguishes, the second coil current visible light is lighted, can see in coil that sense of current is with contrary before, external power supply is electrically connected the second bulb current visible line by the second metal contact piece, bulb is lighted, the first bulb current visible line extinguishes, and the second bulb current visible line is lighted, and can see direction of current in the second bulb current visible line and opposite direction before;
DC generation state, brush on the first support is moved to two commutators and contacted, close the power supply of the first bulb powered brush and the second bulb powered brush, open the power supply of the 3rd bulb powered brush, shake rocking handle, consistent can see in coil sense of current with alternating current time, the 3rd bulb current visible line is lighted, and the direction of current of bulb current visible line only flows towards a direction.
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| CN201420391394.3U CN203966412U (en) | 2014-07-08 | 2014-07-08 | A kind of double current generator principle best explain teaching apparatus |
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| CN201420391394.3U CN203966412U (en) | 2014-07-08 | 2014-07-08 | A kind of double current generator principle best explain teaching apparatus |
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Cited By (8)
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| CN105303937A (en) * | 2014-07-08 | 2016-02-03 | 刘绍家 | Demonstration teaching device for comprehensive double-current generator principle interpretation |
| CN106023769A (en) * | 2015-09-23 | 2016-10-12 | 刘绍家 | Motor and engine integrated teaching demonstration model |
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| CN108766055A (en) * | 2018-06-13 | 2018-11-06 | 尤辉煌 | A kind of novel English multimedia teaching apparatus |
| CN109785716A (en) * | 2017-11-11 | 2019-05-21 | 广东联力科技有限公司 | Magnetic force power generation demonstration teaching aid |
| CN110556043A (en) * | 2019-10-09 | 2019-12-10 | 上海宽射科技有限公司 | Dual-purpose generator rotor and experimental device thereof |
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- 2014-07-08 CN CN201420391394.3U patent/CN203966412U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105303937A (en) * | 2014-07-08 | 2016-02-03 | 刘绍家 | Demonstration teaching device for comprehensive double-current generator principle interpretation |
| CN105303937B (en) * | 2014-07-08 | 2019-02-12 | 刘绍家 | A kind of double current generator principle explains teaching apparatus comprehensively |
| CN106157765A (en) * | 2015-05-15 | 2016-11-23 | 刘绍家 | A kind of teaching aid of demonstration d. c. motor operation principle |
| CN106023769A (en) * | 2015-09-23 | 2016-10-12 | 刘绍家 | Motor and engine integrated teaching demonstration model |
| CN107123352A (en) * | 2017-06-23 | 2017-09-01 | 安徽省庐江第四中学 | A kind of planar imaging device |
| CN109785716A (en) * | 2017-11-11 | 2019-05-21 | 广东联力科技有限公司 | Magnetic force power generation demonstration teaching aid |
| CN108766055A (en) * | 2018-06-13 | 2018-11-06 | 尤辉煌 | A kind of novel English multimedia teaching apparatus |
| CN108766055B (en) * | 2018-06-13 | 2020-06-05 | 瑞安市派乐多教育培训有限公司 | Novel english multimedia teaching device |
| CN110556043A (en) * | 2019-10-09 | 2019-12-10 | 上海宽射科技有限公司 | Dual-purpose generator rotor and experimental device thereof |
| CN112382176A (en) * | 2020-10-21 | 2021-02-19 | 北京科技大学 | Magnetic suspension driving device and method |
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Granted publication date: 20141126 Termination date: 20190708 |
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