CN203882505U - Portable teaching aid used for circuit analysis basic experiments - Google Patents
Portable teaching aid used for circuit analysis basic experiments Download PDFInfo
- Publication number
- CN203882505U CN203882505U CN201420281481.3U CN201420281481U CN203882505U CN 203882505 U CN203882505 U CN 203882505U CN 201420281481 U CN201420281481 U CN 201420281481U CN 203882505 U CN203882505 U CN 203882505U
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- circuit
- branch road
- teaching aid
- double throw
- throw switch
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Abstract
The utility model discloses a portable teaching aid used for circuit analysis basic experiments. The portable teaching aid includes an experiment box, a power source module, a main power source switch, a direct current ampere meter, a direct current voltmeter and an experiment circuit; the panel of the experimental box is provided with the main power source switch, the experiment circuit, the direct current ampere meter and the direct current voltmeter; the experiment circuit includes a main circuit, resistors, current measurement holes, voltage measurement holes and double-throw switches; and the main circuit includes a first branch circuit, a second branch circuit and a third branch circuit, wherein the second branch circuit is located between the first branch circuit and the third branch circuit. The portable teaching aid used for the circuit analysis basic experiments of the utility model has the advantages of simple structure, reasonable design and small size, and can be compatible with Kirchhoff's voltage law, Kirchhoff's current law, superposition theorem and Thevenin's theorem.
Description
Technical field
The utility model relates to teaching and experimental demonstration device, specifically a kind of portable teaching aid for Basic Experiment on Circuit Analysis.
Background technology
In electricity education, Kirchhoff's second law, Kirchhoff's current law (KCL), superposition theorem and Thevenin theorem are the bases of circuit analysis, are also the important knowledge points of the correlated curriculum such as electrical and electronic technology or circuit analysis.And in actual teaching process, because above-mentioned knowledge point is all very abstract, especially Thevenin theorem, is used traditional theory to lecture, the often more difficult fast understanding of student and grasp.
In order to help these knowledge of the better understand and master of student, just need to use relevant teaching aid, by demonstrating intuitively, help student correlated knowledge point is understood and grasped.But present relevant teaching aid, function singleness, volume is larger, not portable movement, operation is simultaneously also comparatively numerous and diverse, is unfavorable for carrying out of teaching.
Utility model content
The purpose of this utility model is to provide a kind of and is easy to carry, simple operation and can ocular demonstration Kirchhoff's second law, the teaching aid of Kirchhoff's current law (KCL), superposition theorem and Thevenin theorem.
For achieving the above object, the technical scheme that the utility model adopts is as follows:
For a portable teaching aid for Basic Experiment on Circuit Analysis, it includes experimental box, power module, total power switch, DC ammeter, D.C. voltmeter and experimental circuit.
Experimental box is built-in with DC power supplier;
The panel of experimental box is provided with total power switch, experimental circuit, DC ammeter, D.C. voltmeter;
The top of experimental box is provided with a handle;
Experimental box side is provided with AC power cord;
Described total power switch is provided with and stops and start button;
Preferably, described direct supply table and D.C. voltmeter are digital display type, and direct supply table arranges single head measurement data line.
Preferably, described DC power supplier has two groups of Voltage-output ports at least;
Described experimental circuit, comprises main circuit, resistance, current measurement hole, voltage measurement hole, double throw switch;
Preferably, described resistance is adjustable;
Described main circuit comprises the first branch road, the second branch road and the 3rd branch road, and the second branch road is positioned between the first branch road and the 3rd branch road;
Described the first branch road, the second branch road and 2 of the 3rd branch road phases intersect;
Described the first branch road is provided with the first double throw switch, the spending extravagantly as short circuit of double throw switch, and another is thrown and is provided with direct supply wiring hole, is also provided with the resistance of at least one two ends with voltage measurement hole on the first branch road;
Described the second branch road is provided with the second double throw switch, the spending extravagantly as short circuit of double throw switch, and another is thrown as opening circuit, and is also provided with the resistance of at least one two ends with voltage measurement hole on the second branch road;
Described the 3rd branch road is provided with the 3rd double throw switch, the spending extravagantly as short circuit of double throw switch, and another is thrown and is provided with direct supply wiring hole, is also provided with the resistance of at least one two ends with voltage measurement hole on the 3rd branch road.
The utility model is simple in structure, reasonable in design, and volume is little, can realize the teaching aid of compatible Kirchhoff's second law, Kirchhoff's current law (KCL), superposition theorem and Thevenin theorem.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the circuit connection diagram of the utility model main circuit.
Embodiment
For convenience of the utility model is done further to understand, existing in conjunction with Fig. 1, Fig. 2 for an embodiment, the utility model is made to further explanation.
Embodiment:
As shown in Figure 1 and Figure 2, the utility model comprises experimental box 1, and be arranged on the DC power supplier 70 in experimental box 1, be arranged on total power switch 10, DC ammeter 20, D.C. voltmeter 30, experimental circuit 50 and empirical theory base description 40 on experimental box panel.
Described experimental box top is provided with a handle 2, described experimental box side is provided with AC power cord 80, described experimental circuit 50 is arranged on the top of described chamber 1 panel, described DC power supplier 70 and empirical theory base description 40 are arranged on the middle part of described experimental box 1 panel, and described experimental box 1 panel bottom is provided with described total power switch 10, described DC ammeter 20 and D.C. voltmeter 30.
Described total power switch 10, is provided with and stops and start button.
Preferably, described DC ammeter 20 and D.C. voltmeter 30 adopt digital display pattern, and DC ammeter 20 arranges single head measurement data line, are convenient to measure.
Preferably, 70 of described direct supply moulds are at least exported two groups of direct voltage sources, and common 5V and 12V voltage source is provided.
Described experimental circuit 50, comprises main circuit, resistance 62, current measurement hole 53, voltage measurement hole 51, double throw switch (52,55,58).
Preferably, resistance 62 adopts adjustable resistance, to increase the diversity of experimental data.
Described main circuit comprises three branch roads (59,60,61), two nodes, comprise the first branch road 59, the second branch road 60 and the 3rd branch road 61, it is characterized in that the first branch road 59 and the 3rd branch road 61 are positioned at the left and right sides of described main circuit, the second branch road 60 is positioned at the centre of described main circuit, and described three branch roads (59,60,61) intersect at two described nodes.On every branch road, be at least provided with a described resistance 62, described three branch roads (59,60,61) are upper, and every branch road is provided with a described current measurement hole 53 and a described double throw switch, and described resistance 62 two ends are provided with described voltage measurement hole 51.
The quantity of described double throw switch is three, be respectively the first double throw switch 55, the second double throw switch 58 and the 3rd double throw switch 52, wherein the first double throw switch 55 is positioned on described the first branch road 59, the second double throw switch 58 is positioned on described the second branch road 60, the 3rd double throw switch 52 is positioned on described the 3rd branch road 61, one side of described the first double throw switch 55 and the 3rd double throw switch 52 is set to short circuit 57, opposite side is provided with direct supply wiring hole 56, one side of described the second double throw switch 58 is set to short circuit, and opposite side is set to open circuit.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (4)
1. for a portable teaching aid for Basic Experiment on Circuit Analysis, it is characterized in that: include experimental box, power module, total power switch, DC ammeter, D.C. voltmeter and experimental circuit, experimental box is built-in with DC power supplier; The panel of experimental box is provided with total power switch, experimental circuit, DC ammeter, D.C. voltmeter; Experimental box side is provided with AC power cord; Described experimental circuit, comprises main circuit, resistance, current measurement hole, voltage measurement hole, double throw switch.
2. as described in claim 1 for the portable teaching aid of Basic Experiment on Circuit Analysis, it is characterized in that: the top of experimental box is provided with a handle.
3. as described in claim 1 for the portable teaching aid of Basic Experiment on Circuit Analysis, it is characterized in that: described total power switch is provided with and stops and start button.
4. as described in claim 1 for the portable teaching aid of Basic Experiment on Circuit Analysis, it is characterized in that: described main circuit comprises the first branch road, the second branch road and the 3rd branch road, the second branch road is positioned between the first branch road and the 3rd branch road; Described the first branch road, the second branch road and 2 of the 3rd branch road phases intersect; Described the first branch road is provided with the first double throw switch, the spending extravagantly as short circuit of double throw switch, and another is thrown and is provided with direct supply wiring hole, is also provided with the resistance of at least one two ends with voltage measurement hole on the first branch road; Described the second branch road is provided with the second double throw switch, the spending extravagantly as short circuit of double throw switch, and another is thrown as opening circuit, and is also provided with the resistance of at least one two ends with voltage measurement hole on the second branch road;
Described the 3rd branch road is provided with the 3rd double throw switch, the spending extravagantly as short circuit of double throw switch, and another is thrown and is provided with direct supply wiring hole, is also provided with the resistance of at least one two ends with voltage measurement hole on the 3rd branch road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420281481.3U CN203882505U (en) | 2014-05-29 | 2014-05-29 | Portable teaching aid used for circuit analysis basic experiments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420281481.3U CN203882505U (en) | 2014-05-29 | 2014-05-29 | Portable teaching aid used for circuit analysis basic experiments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203882505U true CN203882505U (en) | 2014-10-15 |
Family
ID=51682981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420281481.3U Expired - Fee Related CN203882505U (en) | 2014-05-29 | 2014-05-29 | Portable teaching aid used for circuit analysis basic experiments |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203882505U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108470499A (en) * | 2018-03-13 | 2018-08-31 | 上海科技大学 | Discrete networks experimental teaching circuit board and connection method |
| CN110120174A (en) * | 2019-05-24 | 2019-08-13 | 湖南理工学院 | A kind of new-type circuit and system experimental device and application method |
-
2014
- 2014-05-29 CN CN201420281481.3U patent/CN203882505U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108470499A (en) * | 2018-03-13 | 2018-08-31 | 上海科技大学 | Discrete networks experimental teaching circuit board and connection method |
| CN110120174A (en) * | 2019-05-24 | 2019-08-13 | 湖南理工学院 | A kind of new-type circuit and system experimental device and application method |
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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: 20141015 Termination date: 20150529 |
|
| EXPY | Termination of patent right or utility model |