CN206179354U - Joule law tests teaching aid - Google Patents
Joule law tests teaching aid Download PDFInfo
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- CN206179354U CN206179354U CN201620981737.0U CN201620981737U CN206179354U CN 206179354 U CN206179354 U CN 206179354U CN 201620981737 U CN201620981737 U CN 201620981737U CN 206179354 U CN206179354 U CN 206179354U
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- teaching aid
- resistance
- joule law
- joule
- experiment
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Abstract
The utility model discloses a joule law tests teaching aid, this teaching aid has following advantage: one, manufacturing method innovation just can change the electric current through resistance through the connection in series -parallel among the changing circuitry, makes the simple manufacture of whole device and operation process also simple, two, use this teaching aid can finely find out the relation of heat Q and electric current I square and resistance, three, joule law will just can measure with the instrument, and this teaching aid can very audio -visual " seeing " joule law, four, expand the experiment with this teaching aid, can save time, improve classroom efficiency conscientiously, five, experiment phenomena is obvious, and the visibility is big, and nature directly perceived is strong, is fit for demonstrating at classroom teaching, six, experiment operation is simple, only need open switch in the experimentation and can do, seven, the experiment success rate is high, and experiment demonstration's success rate is 100%, broad prospect nearly.
Description
Technical field
This utility model is related to teaching aid field, more particularly to a kind of Joule Law Experiment teaching aid.
Background technology
Joule's law Q=I is probed in teaching material2The assay device of the relation of Rt and resistance and electric current is adding the time of hot standby
Long, intuitive is on the weak side, operates also comparatively laborious.Therefore I devises this teaching aid -- Joule's law exploring instrument, be conducive to carrying
The classroom efficiency of high " probing into Joule's law ".It mainly has three below function：
1st, the relation of Joule's law and resistance sizes can be probed into.
2nd, the relation of Joule's law and size of current can be probed into.
3rd, can be very good the quadratic relationship for embodying electric current in Joule's law.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of Joule Law Experiment teaching aid, to solve prior art
In caused above-mentioned multinomial defect.
For achieving the above object, this utility model provides following technical scheme：A kind of Joule Law Experiment teaching aid, including
Opaque plastics plate, electric resistance structure, U-tube, student power source, transparent mineral water bottle, switch and rubber hose, the rubber is soft
Pipe and U-tube connection, are provided with U-tube manometer in the U-tube, the electric resistance structure is arranged in transparent mineral water bottle,
The U-tube and transparent mineral water bottle are fixed on opaque plastics plate, the U-tube, transparent mineral water bottle, Xue Sheng electricity
Source and switch are connected by wire and terminal.
Preferably, the opaque plastics plate bottom side is provided with bracing frame.
Preferably, the electric resistance structure includes heating wire, resistance and wire, and the heating wire and resistance are connected by wire
Connect, and outside is wound with red rope.
Preferably, the number of the heating wire is three, and the number of the resistance is one.
Preferably, the resistance of the heating wire is R, and the resistance of the resistance is 2R.
Preferably, the switch is single-pole double-throw switch (SPDT).
It is using the beneficial effect of above technical scheme：A kind of Joule Law Experiment teaching aid of this utility model structure, should
Teaching aid has advantages below：First, manufacture method innovation, the electricity by resistance can be just changed by the connection in series-parallel in change circuit
Stream, makes that the making of whole device is simple and operating process is also simple；2nd, heat Q and electric current I can very well be found out using this teaching aid
Square and resistance relation；3rd, Joule's law instrument just can be measured come this teaching aid very intuitively " can see " Jiao
Tumour of external auditory meatus is restrained；4th, test is launched with this teaching aid, can be time-consuming, classroom efficiency is improved conscientiously；5th, experimental phenomena is obvious, it is seen that degree
Greatly, intuitive is strong, is adapted to be demonstrated in classroom instruction；6th, experimental implementation is simple, only need to turn on the power switch in experimentation
Made；7th, experiment success rate is high, and the success rate nearly 100% of experimental demonstration has a extensive future.
Description of the drawings
Fig. 1 is a kind of structural representation of Joule Law Experiment teaching aid of the present utility model；
Fig. 2 is the structural representation of electric resistance structure；
Fig. 3 is the principle schematic of Joule Law Experiment teaching aid.
Wherein：1- opaque plastics plates, 2- electric resistance structures, 3-U type pipes, the transparent mineral water bottle of 4- student power sources, 5-, 6-
Single-pole double-throw switch (SPDT), 7- rubber hose, 8-U U-tube manometers, 9- wires, 10- terminals, 11- bracing frames, 12- heating wire,
13- resistance, 14- redness ropes.
Specific embodiment
Describe preferred implementation of the present utility model in detail below in conjunction with the accompanying drawings.
Fig. 1 shows specific embodiment of the present utility model：A kind of Joule Law Experiment teaching aid, including opaque plastics plate
1st, electric resistance structure 2, U-tube 3, student power source 4, transparent mineral water bottle 5, switch and rubber hose 7, the rubber hose 7 and U
Type pipe 3 connects, and in the U-tube 3 U-tube manometer 8 is provided with, and the electric resistance structure 2 is arranged in transparent mineral water bottle 5,
The U-tube 3 and transparent mineral water bottle 5 are fixed on opaque plastics plate 1, the U-tube 3, transparent mineral water bottle 5,
Student power source 4 and switch are connected by wire 9 and terminal 10.
Additionally, as shown in Figures 2 and 3, the bottom side of opaque plastics plate 1 is provided with bracing frame 11, and the electric resistance structure 2 is wrapped
Heating wire 12, resistance 13 and wire 9 are included, the heating wire 12 and resistance 13 are connected by wire 9, and outside is wound with red rope
Son 14, the number of the heating wire 12 is three, and the number of the resistance 13 is one, and the resistance of the heating wire 12 is R, institute
The resistance for stating resistance 13 is 2R, and the switch is single-pole double-throw switch (SPDT) 6.
Based on above-mentioned, this utility model provides a kind of Joule Law Experiment teaching aid, and the teaching aid has advantages below：First,
Manufacture method is innovated, and by the connection in series-parallel in change circuit the electric current by resistance can be just changed, and makes the making of whole device
Simple and operating process is also simple；2nd, the relation of heat Q and I square of electric current and resistance can be very well found out using this teaching aid；
3rd, Joule's law instrument just can be measured come this teaching aid very intuitively " can see " Joule's law；4th, taught with this
Tool launches test, can be time-consuming, and classroom efficiency is improved conscientiously；5th, experimental phenomena is obvious, it is seen that degree is big, and intuitive is strong, is adapted to
In classroom instruction demonstration；6th, experimental implementation is simple, is made by only need to turning on the power switch in experimentation；7th, test into
Power is high, and the success rate nearly 100% of experimental demonstration has a extensive future.
Above-described is only preferred implementation of the present utility model, it is noted that for the ordinary skill of this area
For personnel, on the premise of design is created without departing from this utility model, some deformations and improvement can also be made, these all belong to
In protection domain of the present utility model.
Claims (6)
1. a kind of Joule Law Experiment teaching aid, it is characterised in that：Including opaque plastics plate, electric resistance structure, U-tube, Xue Sheng electricity
Source, transparent mineral water bottle, switch and rubber hose, the rubber hose and U-tube connect, and are provided with the U-tube U-shaped
Piezometer, the electric resistance structure is arranged in transparent mineral water bottle, and the U-tube and transparent mineral water bottle are fixed on impermeable
On bright plastic plate, the U-tube, transparent mineral water bottle, student power source and switch are connected by wire and terminal.
2. a kind of Joule Law Experiment teaching aid according to claim 1, it is characterised in that the opaque plastics plate bottom side
It is provided with bracing frame.
3. a kind of Joule Law Experiment teaching aid according to claim 1, it is characterised in that the electric resistance structure includes electric heating
Silk, resistance and wire, the heating wire and resistance are connected by wire, and outside is wound with red rope.
4. a kind of Joule Law Experiment teaching aid according to claim 3, it is characterised in that the number of the heating wire is three
Individual, the number of the resistance is one.
5. a kind of Joule Law Experiment teaching aid according to claim 3, it is characterised in that the resistance of the heating wire is R,
The resistance of the resistance is 2R.
6. a kind of Joule Law Experiment teaching aid according to claim 1, it is characterised in that the switch is opened for single-pole double throw
Close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620981737.0U CN206179354U (en) | 2016-08-30 | 2016-08-30 | Joule law tests teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620981737.0U CN206179354U (en) | 2016-08-30 | 2016-08-30 | Joule law tests teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206179354U true CN206179354U (en) | 2017-05-17 |
Family
ID=60241651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620981737.0U Active CN206179354U (en) | 2016-08-30 | 2016-08-30 | Joule law tests teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206179354U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110660300A (en) * | 2019-11-12 | 2020-01-07 | 苏红 | Joule's law experiment demonstration instrument and experiment method |
-
2016
- 2016-08-30 CN CN201620981737.0U patent/CN206179354U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110660300A (en) * | 2019-11-12 | 2020-01-07 | 苏红 | Joule's law experiment demonstration instrument and experiment method |
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