CN202196535U - Safe electric shock tester - Google Patents
Safe electric shock tester Download PDFInfo
- Publication number
- CN202196535U CN202196535U CN2011203238719U CN201120323871U CN202196535U CN 202196535 U CN202196535 U CN 202196535U CN 2011203238719 U CN2011203238719 U CN 2011203238719U CN 201120323871 U CN201120323871 U CN 201120323871U CN 202196535 U CN202196535 U CN 202196535U
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- CN
- China
- Prior art keywords
- transformer
- power supply
- electric shock
- primary input
- electromagnetic relay
- 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 safe electric shock tester, including a transformer, an electromagnetic relay and a power supply. The safe electric shock tester is characterized in that the first terminal of the primary input terminal of the transformer is connected with the anode of the power supply through the normal open contact of the electromagnetic relay, one line of the second terminal of the primary input terminal of the transformer is connected with the anode of the power supply through a relay coil and a switch, the other line of the second terminal of the primary input terminal of the transformer is connected with the cathode of the power supply, the secondary output terminal of the transformer is respectively provided with a first touch point and a second touch point for a tester to have a try. In the utility model, the voltage of the power supply is raised by the transformer, the current is small, no harm is caused to a human body, a good teaching purpose is realized, the structure is simple, the cost is low, and the realization is easy.
Description
Technical field
The utility model relates to a kind of teaching aid, and particularly a kind of safety is got an electric shock and attempted device.
Background technology
At present, in physical teaching course, the student has produced great interest for safety utilization of electric power after having learnt ninth grade physics " safety utilization of electric power " relevant knowledge.In order to improve student's learning enthusiasm, and make the student be fully recognized that the importance of safety utilization of electric power, need attempt device as teaching aid for the student provide a kind of safety to get an electric shock.
The utility model content
The purpose of the utility model provides a kind of safety electric shock and attempts device, can in teaching process, make the student under the situation that guarantees safety, attempt electric shock feeling.
The utility model adopts following technical proposals:
A kind of safety is got an electric shock and is attempted device; Comprise transformer, electromagnetic relay and power supply; Said primary input end first end connects positive source through the normally opened contact of electromagnetic relay; Second end of primary input end is leaded up to electromagnetic relay coil and switch and is connected to positive source, and another road of second end of primary input end connects power cathode, and the transformer secondary output output terminal is provided with first touch point and second touch point respectively.
The primary input terminal input voltage of said transformer is 3V, and secondary output voltage is 110V.
Said power supply adopts two joint 1.5V dry cells.
The utility model raises supply voltage through using transformer, because electric current is very little, can not work the mischief to human body, has reached good teaching purpose, and is simple in structure, with low cost, is easy to realize.
Description of drawings
Fig. 1 is the circuit diagram of the utility model.
Embodiment
As shown in Figure 1; The utility model transformer, electromagnetic relay J and power supply; Primary input end first end connects positive source through the normally opened contact J1 of electromagnetic relay; Second end of primary input end is leaded up to electromagnetic relay coil J and K switch and is connected to positive source, and another road of second end of primary input end connects power cathode.In the present embodiment, power supply adopts two joint 1.5V dry cells.During use, user's Closing Switch K, electromagnetic relay J coil electricity; The normally opened contact J1 of electromagnetic relay is closed, and transformer energising and voltage are 3v, through the transformer transformation; Two output terminals A of transformer secondary output and the voltage between the B are 110V; Because electric current is less, can not produce danger to human body, can reach teaching purpose preferably.
In the present embodiment, power supply can adopt two joint 1.5V dry cells.
Claims (3)
1. a safety is got an electric shock and is attempted device; Comprise transformer, electromagnetic relay and power supply; It is characterized in that: said primary input end first end connects positive source through the normally opened contact of electromagnetic relay; Second end of primary input end is leaded up to electromagnetic relay coil and switch and is connected to positive source; Another road of second end of primary input end connects power cathode, and the transformer secondary output output terminal is respectively arranged with and is used for first touch point and second touch point that the experiencer experiences.
2. safety according to claim 1 is got an electric shock and is attempted device, and it is characterized in that: the primary input terminal input voltage of said transformer is 3V, and secondary output voltage is 110V.
3. safety according to claim 2 is got an electric shock and attempted device, it is characterized in that: said power supply adopts two joint 1.5V dry cells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203238719U CN202196535U (en) | 2011-08-31 | 2011-08-31 | Safe electric shock tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203238719U CN202196535U (en) | 2011-08-31 | 2011-08-31 | Safe electric shock tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202196535U true CN202196535U (en) | 2012-04-18 |
Family
ID=45951437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203238719U Expired - Fee Related CN202196535U (en) | 2011-08-31 | 2011-08-31 | Safe electric shock tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202196535U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102750858A (en) * | 2012-06-08 | 2012-10-24 | 郑州万特电气有限公司 | Somatosensory circuit and device for current capable of being borne by human body |
-
2011
- 2011-08-31 CN CN2011203238719U patent/CN202196535U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102750858A (en) * | 2012-06-08 | 2012-10-24 | 郑州万特电气有限公司 | Somatosensory circuit and device for current capable of being borne by human body |
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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: 20120418 Termination date: 20120831 |