CN2558031Y - Electricity teaching demonstrator - Google Patents
Electricity teaching demonstrator Download PDFInfo
- Publication number
- CN2558031Y CN2558031Y CN 02278882 CN02278882U CN2558031Y CN 2558031 Y CN2558031 Y CN 2558031Y CN 02278882 CN02278882 CN 02278882 CN 02278882 U CN02278882 U CN 02278882U CN 2558031 Y CN2558031 Y CN 2558031Y
- Authority
- CN
- China
- Prior art keywords
- brassboard
- electricity
- demonstration
- breadboard
- groove
- 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
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- Instructional Devices (AREA)
Abstract
The utility model discloses a novel electronic teaching demonstration apparatus which consists of a breadboard, electronic demonstration elements, a battery box and conductors. A groove is arranged in the middle of the upper part of the breadboard and the battery box is arranged in the groove; post heads are arranged under the groove on the breadboard; an AC-DC power supply select switch and a voltage select switch are also arranged on the breadboard; and a power supply circuit board is arranged on the back of the breadboard. Magnets are arranged on the electronic demonstration elements which are fixed with the breadboard through the magnets and are connected with the post heads through the conductors; rubber hoses are sleeved outside the conductors; and the magnets are arranged on the rubber hoses. With the structure, the real conductors can be virtually enlarged, meanwhile, the demonstration elements are adsorbed and fixed by the magnets and the output voltage is flexibly changed by the multilevel voltage power supply, as a result, the purpose of enhancing demonstration effect is achieved.
Description
Technical field
The utility model relates to a kind of middle school teaching classroom electricity apparatus for demonstrating, particularly a kind of novel electricity teaching demonstration device.
Background technology
Experiments of Electricity are demonstrated with the circuit brassboard in each middle school now, the Experiment of Electrical Circuits plate adopts plug-in mounting demonstration element, can on blackboard, hang, but have many parts that complies with one's wishes not to the utmost: 1, circuit connection lead is too thin, the student who is positioned at the front row, classroom just is difficult to see clearly, and student at a distance cannot see especially whatever.2, lead natural torsion distortion is connected with sagging making under action of gravity that lead is interlaced to be influenced the integral layout of circuit and cause the circuit analysis difficulty.3, direction of current in can not the positive and negative and circuit of display power supply.4, luminous miniature bulb adopts common miniature bulb (rated voltage is 2.5V, and 3.8V), luminous visibility is less, and the luminous situation of bulb can't be observed in whole classroom.
Summary of the invention
The purpose of this utility model will provide a kind of novel electricity teaching demonstration device exactly, it has overcome the shortcoming of prior art, employing is with the true lead of the virtual amplification of lead overcoat rubber tube, with the fixing demonstration of magnet absorption element, change output voltage flexibly and reach the purpose that strengthens the demonstration effect simultaneously with the multilevel voltage power supply.
The purpose of this utility model is achieved in that a kind of novel electricity teaching demonstration device, by brassboard 1, electricity demonstration element 2, battery case 3 and lead 4 are formed, brassboard 1 top middle part is provided with groove 5, battery case 3 is positioned at groove 5, brassboard 1 upper groove 5 belows are provided with binding post 6, also be provided with power of alterating and direct current selector switch 7 and voltage-selected switch 8 on the brassboard 1, the back side of brassboard 1 is provided with power supply circuit board 9, electricity demonstration element 2 is provided with magnet 10, electricity demonstration element 2 is fixing with brassboard 1 by magnet 10, and each electricity demonstration element 2 is connected with binding post 6 by lead 4.Brassboard 1 is made up of four iron plates, is movably connected by loose-leaf 12 between each piece iron plate, all offers aperture 13 one by one on each piece iron plate, is with rubber tube 11 outside the lead 4, and rubber tube 11 is provided with magnet 10 one by one.
The utility model is owing to adopt at lead overcoat rubber tube, and the structure of magnet is set on the rubber tube, so the virtual amplification of true lead can be strengthened stimulation to vision, thereby increase visibility, and lead is distributed with the optional position, avoided effectively lead natural torsion distortion to make connecting that lead is interlaced to influence the circuit integral layout, and caused the generation of circuit analysis difficult problem; Again because employing is provided with AC-DC multilevel voltage power supply circuit board at the brassboard back side, the structure of power selection switch and voltage-selected switch is set on the brassboard, so can select different power supply, voltage according to the Experiments of Electricity needs, reach the purpose that increases experiment effect.The utility model also has advantages such as simple in structure, easy to use, cheap, is particularly suitable for middle school electricity teaching and uses.
Description of drawings
Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is a structural representation of the present utility model.
Fig. 1 double as Figure of abstract.
Among the figure; 1, brassboard, 2, electricity demonstration element, 3, battery case, 4, lead, 5, groove, 6, binding post, 7, the power of alterating and direct current selector switch, 8, voltage-selected switch, 9, power supply circuit board, 10, magnet, 11, rubber tube, 12, loose-leaf, 13, aperture.
Embodiment
As shown in Figure 1, a kind of novel electricity teaching demonstration device, by brassboard 1, electricity demonstration element 2, battery case 3 and lead 4 are formed, brassboard 1 top middle part is provided with groove 5, battery case 3 is positioned at groove 5, brassboard 1 upper groove 5 belows are provided with binding post 6, also be provided with power of alterating and direct current selector switch 7 and voltage-selected switch 8 on the brassboard 1, the back side of brassboard 1 is provided with power supply circuit board 9, electricity demonstration element 2 is provided with magnet 10, electricity demonstration element 2 is connected with brassboard 1 by magnet 10, and each electricity demonstration element 2 is connected with binding post 6 by lead 4.
Brassboard 1 is made up of four iron plates, and each piece iron plate loose-leaf 12 is movably connected, and all offers aperture 13 one by one on each piece iron plate, is with rubber tube 11 outside the lead 4, and rubber tube 11 is provided with magnet 10 one by one.
During use, earlier brassboard 1 is opened fixingly, be suspended on then on the Demonstration table, again electricity is demonstrated element 2 and put desired location on the brassboard 1 one by one, because electricity demonstration element 2 is provided with magnet 10, so each electricity demonstration element 2 can be fixed together with brassboard 1.The lead 4 that will be with rubber tube 11 then is connected with binding post 6 with each electricity demonstration element 2, so just can carry out the electricity Demonstrator Trials according to the Experiments of Electricity needs.
The teacher also can be fixed on the mark that indicates arrow or indicate the power supply positive and negative electrode on the brassboard 1 according to the experiment needs, reaches the purpose of display circuit direction of current and power supply positive and negative electrode.
Claims (4)
1, a kind of novel electricity teaching demonstration device, by brassboard (1), electricity demonstration element (2), battery case (3) and lead (4) are formed, it is characterized in that: brassboard (1) top middle part is provided with groove (5), battery case (3) is positioned at groove (5), brassboard (1) upper groove (5) below is provided with binding post (6), also be provided with power of alterating and direct current selector switch (7) and voltage-selected switch (8) on the brassboard (1), the back side of brassboard (1) is provided with power supply circuit board (9), electricity demonstration element (2) is provided with magnet (10), electricity demonstration element (2) is fixing by magnet (10) and brassboard (1), and each electricity demonstration element (2) is connected with binding post (6) by lead (4).
2, a kind of novel electricity teaching demonstration device according to claim 1, it is characterized in that: brassboard (1) is made up of four iron plates, is movably connected by loose-leaf (12) between each piece iron plate, all offers aperture (13) one by one on each piece iron plate.
3, a kind of novel electricity teaching demonstration device according to claim 1 is characterized in that: the outer rubber tube (11) that is with of lead (4).
4, according to claim 1 or 3 described a kind of electric type electricity teaching demonstration devices, it is characterized in that: rubber tube (11) is provided with magnet (10) one by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02278882 CN2558031Y (en) | 2002-08-21 | 2002-08-21 | Electricity teaching demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02278882 CN2558031Y (en) | 2002-08-21 | 2002-08-21 | Electricity teaching demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2558031Y true CN2558031Y (en) | 2003-06-25 |
Family
ID=33742086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02278882 Expired - Fee Related CN2558031Y (en) | 2002-08-21 | 2002-08-21 | Electricity teaching demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2558031Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10528694B2 (en) | 2016-09-01 | 2020-01-07 | Joebotics Incorporated | Breadboard and electronics experimentation system |
-
2002
- 2002-08-21 CN CN 02278882 patent/CN2558031Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10528694B2 (en) | 2016-09-01 | 2020-01-07 | Joebotics Incorporated | Breadboard and electronics experimentation system |
| US10915687B2 (en) | 2016-09-01 | 2021-02-09 | Joebotics Incorporated | Breadboard and electronics experimentation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |