CN206021713U - Lighting circuit comprehensive demonstration instrument - Google Patents
Lighting circuit comprehensive demonstration instrument Download PDFInfo
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- CN206021713U CN206021713U CN201620573592.0U CN201620573592U CN206021713U CN 206021713 U CN206021713 U CN 206021713U CN 201620573592 U CN201620573592 U CN 201620573592U CN 206021713 U CN206021713 U CN 206021713U
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Abstract
The utility model discloses a kind of lighting circuit comprehensive demonstration instrument, in order to solve to there are problems that in prior art that existing illumination demonstrator single function, circuit are complicated unpractical.Including：Lighting circuit demonstration module is rectangle tabular, and two sides of its side are provided with slide block, and on the inside of shell, the slide rail coordinated with slide block is installed in relevant position；The one side of lighting circuit demonstration module fixes the first demonstration unit, and another side fixes the second demonstration unit；First demonstration unit includes that house lead in connection electric energy meter, electric energy meter, plug-in strip, safety box are connected on before the first main line, and connection in series-parallel demonstration module, bulb line demonstration module and socket are all connected in parallel on the first main line；Second demonstration unit includes house lead in connection electric leakage air switch, and with transformer series before the second main line, human electric shock's circuit demonstration module and low voltage control high-tension circuit demonstration module all and are listed on the second main line electric leakage air switch.The demonstrator can demonstrate kinds of experiments process, improve equipment utilization rate.
Description
Technical field
The utility model is related to electricity teaching equipment, more particularly to a kind of lighting circuit comprehensive demonstration instrument.
Background technology
Physics is a subject based on experiment, and a lot of definition, law are all built upon on substantial amounts of experiment.
Experimental teaching simultaneously can also evoke the interest of Students ' Learning physics, improve classroom efficiency.Physics Course basic concept requires me
?：" facing to all students improves Scientific Literacy；Teaching will press close to student life, motivate students' interest in learning；Carry
Diversified teaching method is advocated, focuses on scientific exploration, allow student's experience scientific exploration process, learning science research method to cultivate
Its initiative spirit and the ability of practice." this is accomplished by us and constantly updates experiment equipment in teaching, teaches with experiment as far as possible
Learn.China's lighting circuit voltage is 220V, belongs to non-security voltage, consequently leads in compulsory education, and lighting circuit is taught
Learn content almost individual " blank " in terms of experiment.Not can be good on the market demonstrating domestic lighting circuits and human body is led
The demonstration instrument of electricity, all circuit is complicated mostly, realizes that difficult and demo function is single.
Content of the invention
The utility model embodiment provides a kind of lighting circuit comprehensive demonstration instrument, existing in order to solve to exist in prior art
The complicated unpractical problem of illumination demonstrator single function, circuit.
The lighting circuit comprehensive demonstration instrument that the utility model embodiment is provided, including：Shell, side mounting knob and photograph
Bright circuit demonstration module；Lighting circuit demonstration module is rectangle tabular, and two sides of its side are provided with slide block, on the inside of shell
Relevant position is installed by the slide rail coordinated with slide block；The one side of lighting circuit demonstration module fixes the first demonstration unit, and another side is solid
Fixed second demonstration unit；First demonstration unit includes house lead in connection electric energy meter 1, and electric energy meter 1, plug-in strip 2, safety box are connected on the
Before one main line, connection in series-parallel demonstration module, bulb line demonstration module and socket 3 are all connected in parallel on the first main line 4；Second demonstration
Unit includes that house lead in connection electric leakage air switch 5, electric leakage air switch 5 are connected on before the second main line 7 with transformer 6, people
Body electric shock circuit demonstration module and low voltage control high-tension circuit demonstration module all and are listed on the second main line 7.
Preferably, connection in series-parallel demonstration module includes：First switch 8, second switch the 9, the 3rd switch the 10, first bulb 11 with
And second bulb 12；One end of first switch 8 connects one end of the first bulb 11, and one end of the 3rd switch 10 connects the second bulb
12 one end, one end of second switch 9 connect the other end of the first bulb 11 and the second bulb 12, the other end of first switch 8
With the other end of second switch 9, the first main line 4 is connected in parallel on the other end of the 3rd switch 10.
Preferably, bulb line demonstration module includes：4th switch 13 is connected with the 3rd bulb 14, the lamp of the 3rd bulb 14
Seat is spiral lamp holder.
Preferably, human electric shock's circuit demonstration module includes：The 16, the 7th switch the 17, the 8th of the 15, the 6th switch of 5th switch
The 18, the 4th bulb 19 of switch, the 5th bulb 20 and the 6th bulb 21；The 15, the 4th bulb 19 of 5th switch and the 6th switch 16
It is connected in parallel on the second main line 7 after series connection, one end that the 4th bulb 19 is connected with the 5th switch 15 are simultaneously connected with the 5th bulb 20 and the
Six bulbs 21, the 7th switch 17 are connected on 7 live wire of the second main line after connecting the 5th bulb 20, and the 8th switch 18 connects the 6th lamp
It is connected on 7 live wire of the second main line after bubble 21, wherein the 4th bulb 19, the 5th bulb 20 and the 6th bulb 21 are all LED.
Preferably, low voltage control high-tension circuit demonstration module includes：Electromagnetic relay 22, electric fan 23 and the 9th switch
24；9th switch 24 is connected between electromagnetic relay 22 and transformer 6, and electromagnetic relay 22 is in parallel after connecting with electric fan 23
On the second main line 7.
The utility model beneficial effect includes：Modern design, can cause the curiosity of student, excite seeking knowledge for student
It is intended to；Replace special safety box with the transparent safety box below plug-in strip 2, be in order to allow student see in classroom blown fuse come
The process of protection circuit.Show after two kinds of electric shock modes of human body and power-off there there is transformer 6 with " simulated experiment " true to nature drilling
Remaining electricity.Too many explanation is not done in physics textbook to earth leakage circuit-breaker, but has popularized utilization, this power for illumination in living
Also courage illustrates its role in family's short circuit to road comprehensive demonstration instrument.
Description of the drawings
Fig. 1 is the circuit diagram of the first demonstration unit of the lighting circuit comprehensive demonstration instrument in the utility model embodiment；
Fig. 2 is the circuit diagram of the second demonstration unit of the lighting circuit comprehensive demonstration instrument in the utility model embodiment.
Specific embodiment
Kinds of experiments phenomenon can be demonstrated in order to provide one kind, teacher is reduced and found the work that equipment assembles experimental apparatus,
The implementation of equipment utilization rate is improved, the utility model embodiment provides a kind of lighting circuit comprehensive demonstration instrument, below ties
Close Figure of description to illustrate preferred embodiment of the present utility model.
Refering to shown in Fig. 1 and Fig. 2, the utility model embodiment provides a kind of lighting circuit comprehensive demonstration instrument, specifically includes：
Shell, side mounting knob and lighting circuit demonstration module；Lighting circuit demonstration module be rectangle tabular, the two of its side
Bar side is provided with slide block, and on the inside of shell, the slide rail coordinated with slide block is installed in relevant position；The one side of lighting circuit demonstration module is solid
Fixed first demonstration unit, another side fix the second demonstration unit；First demonstration unit includes house lead in connection electric energy meter 1, electric energy
Table 1, plug-in strip 2, safety box are connected on before the first main line 4, and connection in series-parallel demonstration module, bulb line demonstration module and socket 3 are all
It is connected in parallel on the first main line 4；Second demonstration unit includes house lead in connection electric leakage air switch 5, electric leakage air switch 5 and transformation
Device 6 is connected on before the second main line 7, and human electric shock's circuit demonstration module and low voltage control high-tension circuit demonstration module all and are listed in
On second main line 7.
Specifically, pull handle can extract lighting circuit demonstration module out, and can be fixed on above shell, demonstration
When, lighting circuit demonstration module can be raised, experiment visibility is improved.Circuit board front and back is dual-purpose, improves the utilization of equipment
Rate.Whole circuit board is made by fire prevention and insulating materials, and front and back circuit board respectively has fuse box and earth leakage circuit-breaker,
These all improve the safety coefficient of whole instrument.
Connection in series-parallel demonstration module includes：First switch 8, second switch the 9, the 3rd switch the 10, first bulb 11 and second
Bulb 12；One end of first switch 8 connects one end of the first bulb 11, and one end of the 3rd switch 10 connects the one of the second bulb 12
End, one end of second switch 9 connect the other end of the first bulb 11 and the second bulb 12, the other end of first switch 8 and second
The other end of switch 9, is connected in parallel on the first main line 4 with the other end of the 3rd switch 10.
Bulb line demonstration module includes：4th switch 13 is connected with the 3rd bulb 14, and the lamp socket of the 3rd bulb 14 is spiral shell
Rotating lamp socket.
Human electric shock's circuit demonstration module includes：The 17, the 8th switch 18 of the 16, the 7th switch of the 15, the 6th switch of 5th switch,
4th bulb 19, the 5th bulb 20 and the 6th bulb 21；After the 15, the 4th bulb 19 of 5th switch and 16 series connection of the 6th switch simultaneously
The second main line 7 is associated in, one end that the 4th bulb 19 is connected with the 5th switch 15 is simultaneously connected with the 5th bulb 20 and the 6th bulb
21, the 7th switch 17 is connected on 7 live wire of the second main line after connecting the 5th bulb 20, after the 8th switch 18 connects the 6th bulb 21
It is connected on 7 live wire of the second main line, wherein the 4th bulb 19, the 5th bulb 20 and the 6th bulb 21 are all LED.
Low voltage control high-tension circuit demonstration module includes：Electromagnetic relay 22, electric fan 23 and the 9th switch 24；9th
Switch 24 is connected between electromagnetic relay 22 and transformer 6, and electromagnetic relay 22 is connected in parallel on second after connecting with electric fan 23
On main line 7.
Above-mentioned lighting circuit comprehensive demonstration instrument, can demonstrate 14 kinds of experimental phenomenas, and function is more, improve equipment utilization
Rate, it is adaptable to which junior-senior high school Physics Classroom is demonstrated, and can be also used for the demonstration of family, building site or rental housing.Below to 14 kinds
The experimental phenomena that can be demonstrated makes introduction one by one.
Demonstration 1：The each element of home circuit and the connected mode of " bulb and switch and socket 3 "
Principle and effect：Student is allowed to know that " house lead in low-voltage line-electric energy meter 1- plug-in strips 2 switch-safety box-in home circuit
The order of connection of household electrical appliance ", learns to connect ball bearing made in life.
Demonstration 2：The profile of each element, structure and nameplate in home circuit
Principle and effect：Show to student, such as electric energy meter 1, plug-in strip 2 are switched, earth leakage circuit-breaker, various bulbs, open
Pass, lamp socket, fuse, voltage test pencil, multiplex wiring board, the profile of electromagnetic relay 22；Displaying plug-in strip 2 is switched, voltage test pencil, electromagnetism
Relay 22 and the internal structure of fuse box；Show electric energy meter 1, plug-in strip 2 switch, the nameplate of earth leakage circuit-breaker and bulb.
Demonstration 3：Brightness ratio of the two different lamps of rated power in series parallel circuits
Principle and effect：First bulb 11220V, the bulb of 60W, the second bulb 12 are 220V, and the bulb of 25W, conjunction are gone here and there down
Connection plug-in strip 2, first switch 8 and the 3rd switch 10 are closed, and second switch 9 disconnects, and " 220V 60W, 220V 25W " two lamps are connected,
According to P=I2R, electric current are identical, and 25W light bulb filaments are thin, and resistance is big, and actual power is big, brighter.When closing lower parallel connection plug-in strip 2, first
Switch 8, second switch 9 and the 3rd switch 10 are all closed, according to P=U2/ R, when voltage is identical, 25W light bulb filaments are thin, resistance
Greatly, actual power is little, so the bulb of 25W is dark on the contrary.In the utility model, series connection disconnecting link to the right for close a floodgate, disconnecting link in parallel to
Left is to close a floodgate, and series connection disconnecting link and disconnecting link enemy in parallel install so that series connection disconnecting link and disconnecting link in parallel can not be closed a floodgate simultaneously, it is to avoid electric
Short out road, burns demonstration instrument.
Demonstration 4：Whether interfere with each other when in series parallel circuits, each electrical appliance works
Principle and effect：When screwing out any one bulb in series circuit, another bulb would not work, and series connection is described
Circuit is interfered with each other.Any one bulb is screwed out in parallel circuit, and another bulb energy normal work illustrates parallel circuit mutually not
Interference.
Demonstration 5：The contour structures and effect of three pin plug and Three-hole socket 3
Principle and effect：The plug of three pin plug mark E is longer than other two, is because the gold of the wire and electrical appliance of mark E
Category shell is connected, and on Three-hole socket 3, corresponding wire is connected with the earth of outdoor, just in case live wire insulated hull is damaged, electrical appliance gold
Category outer casing electrification, electric current will import the earth in time, will not cause injury of getting an electric shock to human body.
Demonstration 6：Lamp socket and the connected mode of switch, Edison base and live wire
Principle and effect：The switch of electric light is connected with lamp socket and can only be connected on zero line, and specially bulb line demonstration is single
In unit, the 4th switch 13 connects live wire, the 3rd bulb 14 of connecting, then accesses zero line.If bulb switch is connected on zero line side, although
When can play a part of to be tested with test pencil at switching lamp, but zero line break tail light socket, neon tube still lights, and bulb not work is described
As when there is no electric current, but have voltage, during demonstration, screw out bulb, it can be seen that the afterbody center of Edison base must be with live wire phase
Even.
Demonstration 7：The using method of voltage test pencil and effect
Principle and effect：A tail metallic object of human contact's voltage test pencil, nib contact live wire, just make " live wire-voltage test pencil-
A loop is constituted between human body-greatly ", has electric current by voltage test pencil, neon tube luminous.Live wire is verified in this way.
Demonstration 8：The rated power of measurement electrical appliance
Principle and effect：The electric energy W that electrical appliance is consumed in time t is measured using mechanical stopwatch and electric energy meter 1, according to public affairs
Formula P=W/t measures the actual power of electrical appliance indirectly.When allowing student to know that virtual voltage is equal with rated voltage actual power with
Rated power is equal.
Demonstration 9：The frequency of 1 pulse indicator lamp of electric energy meter flicker is relevant with the general power in circuit
Principle and effect：Gradually increase the electrical appliance of work in circuit, socket 3 can be with external electric kettle, electric heater
Frequency Deng the flicker of, 1 pulse indicator lamp of electric energy meter is also just accelerated.
Demonstration 10：The condition of blown fuse and effect
Principle and effect：High-power electric appliance is gradually accessed in circuit, is reached and burn out guarantor more than the rated current of fuse
The degree of dangerous silk, allows student to witness the process of fuse protection circuit.
Demonstration 11：Two kinds of electric shock modes of human body
Principle and effect：Demonstrated by human electric shock's circuit demonstration module, two articles of arms that people is simulated by the 4th bulb 19,
The one article of arm and left foot that people is simulated by the 5th bulb 20, the one article of arm and right crus of diaphragm that people is simulated by the 6th bulb 21, the
4 the 5th the 6th bulbs 21 are all LED, show current flowing people during electric shock by bulb is installed on below cartoon character
The path of body.When cartoon human contact fire, zero line, i.e., the 5th switch 15 or the 6th 16 connection of switch, demonstration two-wire gets an electric shock：People
On insulator, body contacts live wire and zero line simultaneously at body station；Or on the other hand contact live wire pin steps on the earth of humidity, i.e., the 5th
Switch 15 or the 6th switch 16 are connected, while the 7th switch 17 or the 8th switch 18 are connected, demonstration single line gets an electric shock：Human body stands in ground
Body contact live wire on face, lumination of light emitting diode show human electric shock.
Demonstration 12：Have a surplus after 6 power-off of transformer electricity
Principle and effect：6 power-off latter two electric shock phenomenon of transformer exists, the same in continuing to demonstration 11, connects
5th switch 15 and the 6th switch 16, the 4th bulb 19 flashes, or connects the 5th switch 15 and the 7th switch 17, the 5th bulb 20
Flicker, electricity of also having a surplus after 6 power-off of transformer is described.Caution school will have security provisions to realize in life during electricity consumption.
Demonstration 13：" electromagnetic relay 22 " is utilized to realize low-voltage circuit control high-tension circuit
Principle and effect：Observation electromagnetic relay 22 is how to realize low-voltage circuit control high-tension circuit.Transformer 6 is by family
12V voltages are reduced to 220V voltages, are powered to electromagnetic relay 22 by the 9th switch 24, electromagnetic relay 22 is used as electric fan
23 switch, controls the break-make of electric fan 23 namely high-tension circuit.
Demonstration 14：The consequence of short circuit at the effect of earth leakage circuit-breaker and electrical appliance plug
Principle and effect：The effect of observation of students earth leakage circuit-breaker protection circuit at home circuit " short circuit ".Allow
Short circuit at raw observation plug will not damage electrical appliance.
In sum, the scheme that the utility model embodiment is provided, novel in design, the curiosity of student can be caused, swashed
Send out the aspiration to knowledge of student；Replace special safety box with the transparent safety box below plug-in strip 2, be to allow student to see in classroom
Blown fuse carrys out the process of protection circuit.Shown after two kinds of electric shock modes of human body and power-off with " simulated experiment " true to nature drilling
Transformer 6 is all had a surplus electricity.Too many explanation is not done in physics textbook to earth leakage circuit-breaker, but has popularized fortune in living
With also courage illustrates its role in family's short circuit to this lighting circuit comprehensive demonstration instrument.
Obviously, those skilled in the art can carry out various changes and modification without deviating from this practicality to the utility model
New spirit and scope.So, if of the present utility model these modification and modification belong to the utility model claim and
Within the scope of its equivalent technologies, then the utility model is also intended to comprising these changes and modification.
Claims (5)
1. a kind of lighting circuit comprehensive demonstration instrument, it is characterised in that include：Shell, side mounting knob and power for illumination roadshow
Show module；Lighting circuit demonstration module is rectangle tabular, and two sides of its side are provided with slide block, relevant position on the inside of shell
The slide rail coordinated with slide block is installed；The one side of lighting circuit demonstration module fixes the first demonstration unit, and another side is fixed second and drilled
Show unit；First demonstration unit includes that house lead in connection electric energy meter, electric energy meter, plug-in strip, safety box are connected on before the first main line,
Connection in series-parallel demonstration module, bulb line demonstration module and socket are all connected in parallel on the first main line；Second demonstration unit includes house lead in
Line connection electric leakage air switch, electric leakage air switch and transformer series before the second main line, human electric shock's circuit demonstration mould
Block and low voltage control high-tension circuit demonstration module all and are listed on the second main line.
2. lighting circuit comprehensive demonstration instrument as claimed in claim 1, it is characterised in that connection in series-parallel demonstration module includes：First
Switch, second switch, the 3rd switch, the first bulb and the second bulb；One end of first switch connects one end of the first bulb,
One end of 3rd switch connects one end of the second bulb, and one end of second switch connects the another of the first bulb and the second bulb
End, the other end of the other end and second switch of first switch are connected in parallel on the first main line with the other end of the 3rd switch.
3. lighting circuit comprehensive demonstration instrument as claimed in claim 1, it is characterised in that bulb line demonstration module includes：The
Four switches are connected with the 3rd bulb, and the lamp socket of the 3rd bulb is spiral lamp holder.
4. lighting circuit comprehensive demonstration instrument as claimed in claim 1, it is characterised in that human electric shock's circuit demonstration module bag
Include：5th switch, the 6th switch, the 7th switch, the 8th switch, the 4th bulb, the 5th bulb and the 6th bulb；5th opens
The second main line is connected in parallel on after pass, the 4th bulb and the 6th switch series connection, one end that the 4th bulb is connected with the 5th switch, while connect
The 5th bulb and the 6th bulb is connect, is connected on the second main line live wire after the 7th switch the 5th bulb of connection, the 8th switch connection
It is connected to after 6th bulb on the second main line live wire, wherein the 4th bulb, the 5th bulb and the 6th bulb are all LED.
5. lighting circuit comprehensive demonstration instrument as claimed in claim 1, it is characterised in that low voltage control high-tension circuit demonstration module
Including：Electromagnetic relay, electric fan and the 9th switch；9th switch is connected between electromagnetic relay and transformer, electromagnetism
Relay is connected in parallel on after being connected with electric fan on the second main line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620573592.0U CN206021713U (en) | 2016-06-15 | 2016-06-15 | Lighting circuit comprehensive demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620573592.0U CN206021713U (en) | 2016-06-15 | 2016-06-15 | Lighting circuit comprehensive demonstration instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206021713U true CN206021713U (en) | 2017-03-15 |
Family
ID=58242502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620573592.0U Expired - Fee Related CN206021713U (en) | 2016-06-15 | 2016-06-15 | Lighting circuit comprehensive demonstration instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206021713U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068113A (en) * | 2017-06-08 | 2017-08-18 | 北京望远迅杰科技有限公司 | A kind of circuit structure of media screen |
-
2016
- 2016-06-15 CN CN201620573592.0U patent/CN206021713U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068113A (en) * | 2017-06-08 | 2017-08-18 | 北京望远迅杰科技有限公司 | A kind of circuit structure of media screen |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20170615 |