CN201054202Y - Short circuit demonstration device - Google Patents
Short circuit demonstration device Download PDFInfo
- Publication number
- CN201054202Y CN201054202Y CNU2007201230152U CN200720123015U CN201054202Y CN 201054202 Y CN201054202 Y CN 201054202Y CN U2007201230152 U CNU2007201230152 U CN U2007201230152U CN 200720123015 U CN200720123015 U CN 200720123015U CN 201054202 Y CN201054202 Y CN 201054202Y
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- CN
- China
- Prior art keywords
- short circuit
- utility
- power supply
- model
- switch
- 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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Abstract
The utility model discloses a short circuit demonstration device, which belongs to a teaching aid; the utility model aims at providing a demonstration device which can visibly, visually, safely, and reliably demonstrate the short circuit of a power supply. The technical proposal of the utility model comprises the power supply, a fusing element, and a switch; the power supply (1), a branch switch (2), a main switch (5), and the fusing element (6) are orderly connected in series and formed into a loop, a bulb (3) and a divider resistor (4) are connected in series and then parallelly connected to the two ends of the branch switch (2). The utility model has the advantages that the structure is simple, the operation is convenient, and the interest is strong, the recognition of the students to the short circuit principle can be enhanced, and the utility model is an ideal electrics experimental teaching aid.
Description
Technical field:
The utility model relates to a kind of physics teaching aid, relates in particular to a kind of device of illustrative circuitry short circuit.
Background technology:
As everyone knows, the harm of power supply short circuit is very big, and it is one of major reason that causes fire or device damage.In order to improve the understanding of student, in physics teaching in secondary school, often need the process of analog power short circuit to power supply short circuit harmfulness; Yet present most of middle schools all do not have to demonstrate specially the teaching aid of power supply short circuit, generally adopt the method for the direct short circuit of power supply to demonstrate short path principle, and danger is bigger.
Summary of the invention:
At the above-mentioned defective that exists in the prior art, the utility model aim to provide a kind of can be visual in image, the security short circuit apparatus for demonstrating of analog power short circuit process reliably.
To achieve these goals, the utility model by the following technical solutions: it comprises power supply, fuse element and switch; Power supply, branch switch, master switch and fuse element are connected in proper order and are formed the closed-loop path, are connected in parallel on the two ends of branch switch after bulb and the divider resistance series connection.
Fuse element is masking foil or fuse.
Compared with the prior art, the utility model is because the direct supply that has adopted 6～9V as the short circuit power supply, therefore compares safety; In addition, owing to adopt masking foil to substitute the part lead in the circuit, when being short-circuited, masking foil generates heat and burns, and therefore can simulate intuitively because the harm that short circuit may cause by comparison image.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Among the figure: power supply 1 branch switch 2 bulbs 3 divider resistances 4 master switchs 5 fuse elements 6
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment:
As shown in Figure 1, power supply 1, branch switch 2, master switch 5 and fuse element 6 order series connection form the closed-loop path, are connected in parallel on the two ends of branch switch 2 after bulb 3 and divider resistance 4 series connection.For safety, power supply 1 is the direct supply of 6～9V; The harm that is caused in order to reflect short circuit vivid, intuitively, fuse element 6 can adopt masking foil; Certainly, fuse element 6 also can adopt fuse.
During demonstration, at first closed master switch 5, bulb 3 is luminous; Closed then branch switch 2, circuit is short-circuited immediately, and masking foil heating burning, circuit are cut off, and bulb 3 extinguishes, and experiment finishes.In this experiment, the masking foil burning is very alike with real fire, can stay deep impression to the student.
Claims (3)
1. a short circuit apparatus for demonstrating comprises power supply, fuse element and switch; It is characterized in that: power supply (1), branch switch (2), master switch (5) and the series connection of fuse element (6) order form the closed-loop path, are connected in parallel on the two ends of branch switch (2) after bulb (3) and divider resistance (4) series connection.
2. short circuit apparatus for demonstrating according to claim 1, fuse element (6) is a masking foil.
3. short circuit apparatus for demonstrating according to claim 1, fuse element (6) is a fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201230152U CN201054202Y (en) | 2007-06-11 | 2007-06-11 | Short circuit demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201230152U CN201054202Y (en) | 2007-06-11 | 2007-06-11 | Short circuit demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201054202Y true CN201054202Y (en) | 2008-04-30 |
Family
ID=39393864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201230152U Expired - Fee Related CN201054202Y (en) | 2007-06-11 | 2007-06-11 | Short circuit demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201054202Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102693669A (en) * | 2012-06-15 | 2012-09-26 | 上海第二工业大学 | Demonstration device for proving logic algebraic formula A (A+B) =A |
| CN102750865A (en) * | 2012-06-08 | 2012-10-24 | 郑州万特电气有限公司 | Somatosensory practical training circuit and device for wire fused in case of circuit overload |
| CN102779446A (en) * | 2012-06-15 | 2012-11-14 | 上海第二工业大学 | Demonstration device for proving logic algebra common formula |
| CN103456217A (en) * | 2013-10-08 | 2013-12-18 | 熊德永 | Multifunctional short circuit demonstration device |
| CN104064087A (en) * | 2014-06-25 | 2014-09-24 | 徐晶 | Power source short circuit demonstration device |
| CN108198492A (en) * | 2018-01-03 | 2018-06-22 | 佛山杰致信息科技有限公司 | A kind of parallel series circuit demonstration rapid wiring device |
-
2007
- 2007-06-11 CN CNU2007201230152U patent/CN201054202Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102750865A (en) * | 2012-06-08 | 2012-10-24 | 郑州万特电气有限公司 | Somatosensory practical training circuit and device for wire fused in case of circuit overload |
| CN102693669A (en) * | 2012-06-15 | 2012-09-26 | 上海第二工业大学 | Demonstration device for proving logic algebraic formula A (A+B) =A |
| CN102779446A (en) * | 2012-06-15 | 2012-11-14 | 上海第二工业大学 | Demonstration device for proving logic algebra common formula |
| CN103456217A (en) * | 2013-10-08 | 2013-12-18 | 熊德永 | Multifunctional short circuit demonstration device |
| CN103456217B (en) * | 2013-10-08 | 2016-01-06 | 熊德永 | Multifunctional short circuit demonstration device |
| CN104064087A (en) * | 2014-06-25 | 2014-09-24 | 徐晶 | Power source short circuit demonstration device |
| CN108198492A (en) * | 2018-01-03 | 2018-06-22 | 佛山杰致信息科技有限公司 | A kind of parallel series circuit demonstration rapid wiring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080430 |