CN2072712U - Junior middle school electicity, electromagnetics comprehensive experiment board - Google Patents
Junior middle school electicity, electromagnetics comprehensive experiment board Download PDFInfo
- Publication number
- CN2072712U CN2072712U CN 90217975 CN90217975U CN2072712U CN 2072712 U CN2072712 U CN 2072712U CN 90217975 CN90217975 CN 90217975 CN 90217975 U CN90217975 U CN 90217975U CN 2072712 U CN2072712 U CN 2072712U
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- China
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- comprehensive experiment
- middle school
- binding post
- volts
- electricity
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Abstract
The utility model relates to a junior middle school electricity and magnetism comprehensive experiment board which is small in size and low in cost. A connection device is a cone point tension spring shaped binding post which is provided with a plastic cap. When in use, the junior middle school electricity and magnetism comprehensive experiment board can complete thirteen experiments of electricity and magnetism experiments of the junior middle school.
Description
The utility model belongs to the teaching appliance field, particularly relates to a kind of 13 Comprehensive Experiment plates that electricity, magnetics are tested in the junior physics textbook of doing.
Electricity, magnetics experiment are totally ten three kinds on the junior physics textbook, and the student whenever does a kind of experiment all will do many numerous and diverse preliminary works.Chinese patent " use the electrophysics brassboard " more (89210716.2) though integrate the described electronic component of multiple middle school textbook, can finish nearly 70 of middle school physical experiment, but be not equipped with volt ampere meter on this brassboard, therefore, very difficult many experiments of independently finishing in the physics teaching in secondary school.And use Physical Experiment plate this more, do not relate to the experiment of magnetics part in the textbook.
Goal of the invention of the present utility model provide a kind of with low cost, volume is small and exquisite, and can make the student independently finish the Comprehensive Experiment plate of electricity on the junior physics textbook, magnetics experiment.
Comprehensive Experiment plate of the present utility model is on the plastic plate or fiberboard of an exercise-book size, use shape method for designing in proportion, with the junior physics textbook power on, magnetic tests required components and parts: above classification such as volt ampere meter, small-sized DC motor, miniature relay, electric bell, miniature bulb, slide rheostat, fixed resistance, needle, battery folder, telegraph key, fixing cord are installed in.Each components and parts all is connected to awl end extension spring shape binding post 2.The awl end of binding post 2 and the taper hole strong bonded on the base plate 4, the other end of binding post 2 has plastic cap 3.Can put on number on the plastic cap 3, to distinguish the binding post of each components and parts correspondence.When making brassboard, the lead-in wire of components and parts 1 is inserted between corresponding binding post 2 awl end extension springs two pitches, compress the lead-in wire of components and parts, lead-in wire is fixed on the base plate 4 by the tension force of extension spring self.When the student does experiment, only need binding post 2 is pulled tiltedly, lead is inserted between the pitch of binding post 2, after loosing one's grip, binding post 2 just can clamping wire.Finish a certain experiment, with lead corresponding components and parts on the brassboard are coupled together, constitute allocated circuit on the textbook, just can observe experimental phenomena or measure experimental data according to said method.
Junior middle school's electricity, magnetics Comprehensive Experiment plate, electricity, magnetics experiment equipment are one in the collection junior middle school textbook, and volume is little, and cost is low, is easy to popularize.It makes each student can both independently finish the experiment content of textbook with most economical means, turns out observation of students, experiment, thinking and problem-solving ability, and then excites the interest of their learning physics.
Fig. 1 is the vertical view of Comprehensive Experiment plate.
Fig. 2 is the front view of Comprehensive Experiment plate.
An embodiment of the present utility model: on the Comprehensive Experiment plate: range is 1～5 volt, 0.5～1 and pacifies one of volt ampere meter, 2.2 two of the miniature bulbs of volt, 0.25 peace, one of 3 volts of small-sized DC motor, one of the miniature relay that coil voltage is 1.5 volts, one on the electric bell that operating voltage is 1.5 volts, one piece of needle, one of 50 ohm of slide rheostat, one of 5 ohm of fixed resistance, No. 5 battery two joints, three on telegraph key.Above components and parts are installed by position shown in Figure 1.
Claims (2)
1, a kind of by base plate, electricity, magnetics Comprehensive Experiment plate that components and parts constitute, termination is a spring shape binding post, the utility model is characterised in that the lead-in wire of volt ampere meter, needle, miniature relay, miniature bulb, small-sized DC motor, electric bell, slide rheostat, fixed resistance, battery folder, telegraph key is fixed on the Comprehensive Experiment plate base plate 4 with spring shape binding post 2, spring shape binding post 2 one end band plastic caps, the other end is taper.
2, electricity according to claim 1, magnetics Comprehensive Experiment plate, it is characterized in that components and parts 1 comprise: the volt ampere meter of 1～5 volt of range, 0.5～1 peace, 2.2 volts 0.25 miniature bulb of pacifying, 3 volts the electric bell, 50 ohm slide rheostat, 5 ohm fixed resistance, No. 5 batteries, needle, telegraph key of 1.5 volts of miniature relay, operating voltage of 1.5 volts of small-sized DC motor, coil voltages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90217975 CN2072712U (en) | 1990-08-11 | 1990-08-11 | Junior middle school electicity, electromagnetics comprehensive experiment board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90217975 CN2072712U (en) | 1990-08-11 | 1990-08-11 | Junior middle school electicity, electromagnetics comprehensive experiment board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2072712U true CN2072712U (en) | 1991-03-06 |
Family
ID=4896868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90217975 Withdrawn CN2072712U (en) | 1990-08-11 | 1990-08-11 | Junior middle school electicity, electromagnetics comprehensive experiment board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2072712U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008688A (en) * | 2014-06-09 | 2014-08-27 | 常州市零伍壹玖电子有限公司 | Slide rheostat teaching aid |
-
1990
- 1990-08-11 CN CN 90217975 patent/CN2072712U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008688A (en) * | 2014-06-09 | 2014-08-27 | 常州市零伍壹玖电子有限公司 | Slide rheostat teaching aid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |