CN202067434U - Characteristic experiment board for capacitor, inductor, resistor and diode in middle school physics - Google Patents
Characteristic experiment board for capacitor, inductor, resistor and diode in middle school physics Download PDFInfo
- Publication number
- CN202067434U CN202067434U CN2011200231192U CN201120023119U CN202067434U CN 202067434 U CN202067434 U CN 202067434U CN 2011200231192 U CN2011200231192 U CN 2011200231192U CN 201120023119 U CN201120023119 U CN 201120023119U CN 202067434 U CN202067434 U CN 202067434U
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- middle school
- resistance
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Abstract
The utility model discloses a characteristic experiment board for a capacitor, an inductor, a resistor and a diode in the middle school physics, which is formed by arranging components on a mainboard and connecting the components and the mainboard through conductors according to a designed circuit; 220V alternating current is sent to a voltage reduction isolation transformer sequentially through a power supply plug, a power switch and a power supply protective tube; 36V alternating current output by a secondary coil of the voltage reduction isolation transformer is divided into two paths, wherein one path is converted into direct current through the rectification by a rectifier diode, then is converted into constant voltage direct current through the filtering by a filter capacitor and is sent to a select switch for selection at last; the other path is directly sent to the select switch for selection; the select switch is connected with a load circuit; active interfaces are arranged at two sides of a through switch in parallel; and the current of the load circuit passes through a load protective tube through the through switch or the active interfaces and is sent to a 36V lamp finally. The experiment board is convenient in operation, phenomena can be compared, the experiment effect is remarkable, visual and interesting, and therefore, the experiment board can stimulate the learning interest of students.
Description
Technical field
The utility model relates to technical field of teaching instruments, the brassboard of using more specifically to physics teaching in secondary school.
Background technology
Existing experiment equipment about electric capacity, inductance, resistance, diode characteristic mostly is independent and outmoded in the school laboratory, experimental implementation inconvenience, not contrast, DeGrain.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of easy to operate, and phenomenon has contrast, the tangible middle school of experiment effect physics electric capacity, inductance, resistance, diode characteristic brassboard.
The purpose of this utility model is achieved by the following technical programs: a kind of middle school physics electric capacity, inductance, resistance, diode characteristic brassboard, and select these components and parts of switch by attaching plug, power switch, power safety pipe, step-down isolation transformer, commutation diode, filter capacitor, through swtich, active interface, 36V electric light, load protective tube and friendship, direct election and be installed on the mainboard and and be formed by connecting by lead by the circuit that designs; The 220V alternating current is delivered to step-down isolation transformer through attaching plug, power switch, power safety pipe successively, step-down isolation transformer is the 220V alternating circuit and experimental circuit is isolated and voltage is reduced to the 36V safe voltage by 220V, can guarantee to test and carry out under safety condition; The 36V alternating current of step-down isolation transformer secondary coil output divides two-way, one the tunnel becomes direct current after rectifies, after filter capacitor filtering, become the constant voltage direct current again, it is selective to deliver to selector switch, it is selective that selector switch is directly delivered on another road, selector switch connects load circuit, upper and lowerly pulls out the power supply source that selector switch can be selected load circuit; For making things convenient for the grafting experiment component, on the through swtich both sides and adorn an active interface, the load circuit electric current flows through the load protective tube through through swtich or active interface, delivers to the 36V electric light at last.In addition in order to allow the student further understand the experimental circuit principle, can be on brassboard a side be provided with one and put up the circuit theory diagrams position, circuit theory diagrams preferably are positioned at the brassboard downside, the brassboard upside is installed components and parts.Mainboard of the present utility model is preferably the Plastic chopping block with portable mouthful, and is easy to carry, can keep flat on the table to use for student experimenting, also mobilizable support stick can be installed in the mainboard back in addition, whole brassboard support is stood on said table top, do demonstrator usefulness for teacher, practical.
The utility model is in actual use:
1, understands the effective value of alternating current by experiment.Concrete grammar is: the through swtich in the circuit is connected, active interface is vacant, and attaching plug inserts 220V alternating current and energized switch, when selecting switch conversion between the AC and DC shelves, the brightness of observing electric light is the same, originally the voltage that exchanges in the circuit be 0～51V (
) between change, interchange 36V in the circuit is meant the effective value of alternating voltage, the effective value of alternating current is stipulated according to heating effect of current: AC and DC respectively by identical resistance (electric light can be thought pure resistance), if the heat that they produce in the time that equates equates (electric light brightness is identical), we just are called individual DC voltage numerical value the effective value of alternating voltage.This experiment can make the student understand the effective value definition of alternating current.
2, understand the characteristic of electric capacity by experiment, concrete grammar is: the through swtich in the circuit is connected, active interface is vacant, and selector switch is chosen in and exchanges shelves, and attaching plug inserts 220V alternating current and energized switch, this moment, electric light was normally luminous, disconnecting power switch, electric light promptly extinguishes, and selector switch is pulled out to zero frequency span again, see that electric light can be luminous this moment, but brightness was understood deepening gradually to extinguishing in several seconds.Why? originally the filter capacitor on the DC circuit has formerly filled electricity, and when selecting switch to pull out to zero frequency span, the filter capacitor that is filled with electricity can discharge and make electric light luminous, and this has just verified that capacitor has the performance of charge and discharge; When the experiment capacitor is gone up in the active interface grafting, disconnect through swtich, selector switch is selected to zero frequency span, attaching plug inserts 220V alternating current and energized switch, this moment, electric light did not work, and when pulling out selector switch to the interchange shelves again, electric light is luminous but darker, electric light is normally luminous when connecting through swtich again, this verified capacitor have logical hand over (stream), every the characteristic of straight (stream) and obstruction interchange.
3, understand the characteristic of inductance by experiment, concrete grammar is: the through swtich in the circuit disconnects, active interface is pegged graft and is gone up the experiment telefault, the selector switch choosing is connected on the zero frequency span, and attaching plug inserts 220V alternating current and energized switch, and this moment, electric light was normally luminous, when pulling out selector switch to the interchange shelves, electric light meeting deepening, electric light is normally luminous again when connecting through swtich again, and this has just verified that inductance has perfectly straight (stream), resistance to hand over (stream) characteristic.
4, understand the characteristic of resistance by experiment, concrete grammar is: the through swtich in the circuit disconnects, active interface is pegged graft and is gone up experiment resistance, attaching plug inserts 220V alternating current and energized switch, switch is being handed over when selecting, directly conversion between shelves, electric light all can send the same but darker light of brightness, and this has just verified that resistance is to handing over, directly have identical obstruction characteristic.
5, be familiar with the characteristic of diode by experiment, concrete grammar is: the through swtich in the circuit disconnects, the selector switch choosing is connected on zero frequency span, pegs graft into the experiment diode at the active interface forward, when attaching plug inserts 220V alternating current and energized switch, electric light can be bright, disconnecting power switch, when pegging graft the experiment diode reverse into active interface, the energized switch, this moment, electric light did not work, and this has just verified that diode has the unilateal conduction characteristic.
This utility model is easy to operate, and phenomenon has contrast, and experiment effect is obvious, directly perceived and interesting, can motivate students' interest in learning, and deepens the understanding to relevant knowledge.By experiment, know that capacitor has the function of charge and discharge, capacitor have logical hand over (stream), every directly (stream), and interchange is had the characteristic of inhibition; Inductance has perfectly straight (stream), and the characteristic of (stream) is handed in resistance, and resistance all has the characteristic of obstruction to the AC and DC electric current, and diode has unilateral conduction, can also test the definition that understand the alternating voltage effective value by these works.
Description of drawings
Accompanying drawing is circuit theory diagrams of the present utility model
Among the figure: 1, attaching plug; 2, power switch; 3, power safety pipe; 4, step-down isolation transformer; 5, commutation diode; 6, filter capacitor; 7, hand over, elect directly and select switch; 8, through swtich; 9, active interface; 10, load protective tube; 11,36V electric light.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Design circuit earlier, the circuit diagram that designs as shown in drawings, by circuit diagram these components and parts of switch being selected in attaching plug, power switch, power safety pipe, step-down isolation transformer, commutation diode, filter capacitor, through swtich, active interface, 36V electric light, load protective tube and friendship, direct election then is installed in and has portable mouthful Plastic chopping block upside and be connected by lead, the Plastic chopping block downside is puted up the experimental circuit schematic diagram, the Plastic chopping block back be equipped with mobilizable support stick the utility model.
Claims (6)
1. a middle school physics electric capacity, inductance, resistance, diode characteristic brassboard is characterized in that selecting these components and parts of switch by attaching plug, power switch, power safety pipe, step-down isolation transformer, commutation diode, filter capacitor, through swtich, active interface, 36V electric light, load protective tube and friendship, direct election is installed on the mainboard and by the circuit that designs and is formed by connecting by lead; The 220V alternating current is delivered to step-down isolation transformer through attaching plug, power switch, power safety pipe successively, the 36V alternating current of step-down isolation transformer secondary coil output divides two-way, one the tunnel becomes direct current after rectifies, after filter capacitor filtering, become the constant voltage direct current again, it is selective to deliver to selector switch, it is selective that selector switch is directly delivered on another road, selector switch connects load circuit, on the through swtich both sides and adorn an active interface, the load circuit electric current flows through the load insurance through through swtich or active interface delivers to the 36V electric light.
2. middle school according to claim 1 physics electric capacity, inductance, resistance, diode characteristic brassboard is characterized in that mainboard one side is provided with circuit theory diagrams.
3. middle school according to claim 2 physics electric capacity, inductance, resistance, diode characteristic brassboard is characterized in that components and parts are installed in the mainboard upside, and circuit theory diagrams are arranged on the mainboard downside.
4. middle school according to claim 1 physics electric capacity, inductance, resistance, diode characteristic brassboard is characterized in that mainboard is a Plastic chopping block.
5. middle school according to claim 4 physics electric capacity, inductance, resistance, diode characteristic brassboard is characterized in that Plastic chopping block is the Plastic chopping block with portable mouth.
6. according to claim 1 or 2 or 3 or 4 or 5 described middle school physics electric capacity, inductance, resistance, diode characteristic brassboard, it is characterized in that the mainboard back is equipped with mobilizable support stick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200231192U CN202067434U (en) | 2011-01-19 | 2011-01-19 | Characteristic experiment board for capacitor, inductor, resistor and diode in middle school physics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200231192U CN202067434U (en) | 2011-01-19 | 2011-01-19 | Characteristic experiment board for capacitor, inductor, resistor and diode in middle school physics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202067434U true CN202067434U (en) | 2011-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200231192U Expired - Fee Related CN202067434U (en) | 2011-01-19 | 2011-01-19 | Characteristic experiment board for capacitor, inductor, resistor and diode in middle school physics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202067434U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020024509A1 (en) * | 2018-08-01 | 2020-02-06 | 珠海格力电器股份有限公司 | Smart door lock, and method and device for supplying power to smart door lock |
| CN113409662A (en) * | 2021-06-21 | 2021-09-17 | 江苏省丹阳高级中学 | Multifunctional component testing device |
-
2011
- 2011-01-19 CN CN2011200231192U patent/CN202067434U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020024509A1 (en) * | 2018-08-01 | 2020-02-06 | 珠海格力电器股份有限公司 | Smart door lock, and method and device for supplying power to smart door lock |
| CN113409662A (en) * | 2021-06-21 | 2021-09-17 | 江苏省丹阳高级中学 | Multifunctional component testing device |
| CN113409662B (en) * | 2021-06-21 | 2022-06-28 | 江苏省丹阳高级中学 | Multifunctional component testing 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: 20111207 Termination date: 20140119 |