CN204463634U - A kind of home circuit analyzes apparatus for demonstrating - Google Patents
A kind of home circuit analyzes apparatus for demonstrating Download PDFInfo
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- CN204463634U CN204463634U CN201520166291.1U CN201520166291U CN204463634U CN 204463634 U CN204463634 U CN 204463634U CN 201520166291 U CN201520166291 U CN 201520166291U CN 204463634 U CN204463634 U CN 204463634U
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Abstract
The utility model discloses a kind of home circuit and analyzes apparatus for demonstrating, comprise substrate, be located on described substrate, be fixed on the zero line on substrate and live wire, be connected to the power supply between zero line and live wire and circuit analysis module, the testing element being connected to the ground wire on zero line and being connected on described ground wire, wherein, circuit analysis module comprises the first bulb, second bulb, first switch, second switch and Three-hole socket, described first bulb is connected zero line and live wire after connecting with the first switch respectively, first switch connects live wire, second bulb is connected zero line and live wire after connecting with second switch respectively, second switch connects zero line, Three-hole socket connects zero line and live wire, earth terminal connects ground wire.By carrying out sunykatuib analysis to the various circuit conditions of circuit analysis module, carrying out under the safe voltage of power supply, ensure that the security of operation, realize Fast Learning and grasp electricity knowledge.
Description
Technical field
The utility model relates to a kind of technical field of visual illustration, is specifically related to a kind of home circuit and analyzes apparatus for demonstrating.
Background technology
In existing teaching, the fault analysis of home circuit is the difficult point in study always, and test pencil is the important tool of testing circuit fault in circuit analysis, the concrete use of test pencil, as being can normal luminous in connecting at which circuit, be can not these operations such as normal luminous in which circuit connects, relevant description of test is not had in existing teaching teaching material, student cannot experience in person, so, has certain restriction for student's Fast Learning and grasp electricity knowledge.
Do not arrange in teaching material and so learn experiment, an important reason is because general home circuit operating voltage is 220v, under this voltage, does short circuit, the circuit analyses such as open circuit, can there is certain potential safety hazard.
Therefore, be necessary to provide a kind of home circuit to analyze apparatus for demonstrating, to solve above-mentioned Problems existing.
Utility model content
The purpose of this utility model is to provide a kind of home circuit and analyzes apparatus for demonstrating.
The technical scheme realizing above-mentioned purpose is: a kind of home circuit analyzes apparatus for demonstrating, comprise substrate, be located on described substrate, be fixed on the zero line on substrate and live wire, be connected to the power supply between zero line and live wire and circuit analysis module, and the ground wire be connected on zero line and the testing element be connected on described ground wire, wherein, described circuit analysis module comprises the first bulb, second bulb, first switch, second switch and Three-hole socket, described first bulb is connected zero line and live wire after connecting with the first switch respectively, first switch connects live wire, second bulb is connected zero line and live wire after connecting with second switch respectively, second switch connects zero line, Three-hole socket connects zero line and live wire, earth terminal connects ground wire.
In technique scheme, the voltage of described power supply is that 220V is converted to 3V.
In technique scheme, described testing element is test pencil.
In technique scheme, described test pencil comprises the light emitting diode of two series connection.
In technique scheme, described substrate is that multiple circuit board combines.
In technique scheme, described substrate is also equiped with high-power LED lamp and fuse.
In technique scheme, described substrate is also equiped with experiment and uses little electric fan.
In technique scheme, described substrate is also equiped with experiment metal shell electrical appliance.
In technique scheme, described experiment metal shell electrical appliance comprises carton, two miniature bulbs in parallel, and be located in carton for one, another is located at outside carton, and the miniature bulb in carton is connected to outside carton by wire, and bag is provided with masking foil.
In technique scheme, between the zero line of described substrate and live wire, be also provided with short circuit current.
Technical solutions of the utility model, zero line and live wire is provided with by being located at substrate, be connected to the power supply between zero line and live wire and circuit analysis module, the testing element being connected to the ground wire on zero line and being connected on ground wire, in order to carry out sunykatuib analysis to the various circuit conditions of circuit analysis module, carry out under the safe voltage of power supply, ensure that the security of operation, realize Fast Learning and grasp electricity knowledge.
Accompanying drawing explanation
Fig. 1 is that the utility model home circuit analyzes apparatus for demonstrating circuit diagram;
Fig. 2 is test pencil circuit diagram;
Fig. 3 is experiment metal shell electrical appliance circuit diagram in the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with embodiment also with reference to accompanying drawing, the utility model is further described.Should be appreciated that, these describe just exemplary, and do not really want to limit scope of the present utility model.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring concept of the present invention.
Fig. 1 shows and analyzes apparatus for demonstrating circuit diagram according to the utility model home circuit; Fig. 2 shows test pencil circuit diagram; Fig. 3 shows experiment metal shell electrical appliance circuit diagram in the utility model embodiment.
As shown in Figure 1, home circuit of the present utility model is analyzed apparatus for demonstrating and is comprised substrate 1, and described substrate 1 combines for multiple circuit board, such as, can be fixed on together with nylon cable tie.
Described device also comprises to be located on described substrate and the zero line 2 be fixed on substrate 1 and live wire 3, be connected to power supply 4 between zero line 2 and live wire 3 and circuit analysis module 5 and the ground wire 7 be connected on zero line 2 and the testing element 6 be connected on described ground wire 7, wherein, described power supply 4 voltage is 3V, be, with student power source, 220V is converted into 3V, ensure that security during experimental implementation.In addition, 3V supply voltage also can adopt two joint dry cells to realize.
In the present embodiment, described testing element 6 is test pencil.As shown in Figure 2, described test pencil comprises the light emitting diode of two series connection, for the repacking of general test pencil, the metal cap on little for test pencil plastic tube both sides is opened, take out resistance and the metal neon tube of the inside, load onto the light emitting diode of described two series connection, and build metal cap, test pencil is assembled, makes it normally can use under 3V voltage.In addition, if the light emitting diode selected normally can work under 3V voltage, then without the need to two light emitting diodes of connecting.In this embodiment, test pencil be experiment 3V alternating current, then without the need to paying close attention to the both positive and negative polarity of diode, if with direct current or battery in other embodiments, then should be noted that the both positive and negative polarity of diode.In the present embodiment, select light emitting diode to be because the resistance of light emitting diode is very large, only need very small area analysis just can be luminous, to use equally with normal test pencil.
Wherein, described circuit analysis module 5 comprises the first bulb 51, second bulb 52, first switch 53, second switch 54 and Three-hole socket 55, described first bulb 51 is connected zero line 2 and live wire 3 after connecting with the first switch 53 respectively, first switch 53 connects live wire 3, second bulb 52 is connected zero line 2 and live wire 3 after connecting with second switch 54 respectively, second switch 54 connects zero line 2, and Three-hole socket 55 connects zero line 2 and live wire 3, and earth terminal connects ground wire.
Further, the room of described substrate 1 also can be provided with high-power LED lamp, test with little electric fan, experiment metal shell electrical appliance, in order to insert respectively in described socket, carry out experiments different as follows.
In addition, short circuit current 80 is also provided with between the zero line 2 of described substrate 1 and live wire 3.
Described home circuit analyzes apparatus for demonstrating, can complete following several circuit analysis respectively:
1. analog family circuit working
Closed described first switch 53 and second switch 54, described first bulb 51 and described second bulb 52 all can be shinny, then insert in described socket 55 by the plug of described experiment small fan, and described small fan runs well.Little electric fan and lighting circuit work are in order to the scene of electrical appliance work in analog family circuit.
2. the use of test pencil
Described apparatus for demonstrating tests described live wire 3, zero line 2 with described test pencil 6; After closing described first switch 53 and second switch 54, test the both sides of described first bulb 51 and the second bulb 52, or survey the jack of described socket 55, since using, demonstrate the using method of test pencil.
3. analyze switch to start to exchange fire line or connecting to neutral line
Closed described first switch 53 and second switch 54, described first bulb 51 and the second bulb 52 all can be shinny, disconnect the first switch 53 and second switch 54, test described first bulb 51 with test pencil 6 respectively, test pencil 6 does not work, and proves that the first switch 53 is started to exchange fire line 3, test described second bulb 52, test pencil 6 is shinny, proves described second switch 54 connecting to neutral line 2, can cause danger.
4. short circuit experiment
Short circuiting switch 8 is connected with between described zero line 2 and live wire 3, one end of described short circuiting switch 8 is connected on described live wire 3, the other end is connected on zero line 2, form described short circuit current 80, the short circuiting switch 8 of closed short circuit current 80, the plastics finding above resistance wire can burn thawing, smolder, show the harm of short circuit with this.
5. the fuse of different size
The fuse 10 coordinating high-power LED lamp to test together is installed on described live wire 3, first described live wire 3 loads onto the fuse that rated current is 1A, at this moment plugs the plug of high-powered LED lamp in described socket, blown fuse.Reequip the fuse that rated current is 5A again, repeat experiment, find that fuse does not fuse, LED normally works.This experiment has shown since using, and in home circuit, fuse should select rated current to be equal to or slightly greater than electric current maximum in circuit.
6. the effect of ground wire
Described experiment metal shell electrical appliance 9 comprises carton, two miniature bulbs 91 in parallel, a miniature bulb 91 is located in carton, another miniature bulb 92 is located at outside carton, miniature bulb 91 in carton is connected to outside carton by wire, and bag is provided with masking foil, be equivalent to metal shell and be connected with three hole plugs 93, concrete circuit connecting method as shown in Figure 3.
Be inserted on described socket 55 by three hole plugs 93 of described homemade test metal shell electrical appliance 9, miniature bulb 92 is shinny, represents electrical appliance work.Now three hole plug 93 ends ground wire 94 be connected disconnection with metal shell, as circuit diagram 3 breaker in middle 95 disconnects, survey metal shells with described survey electricity 6, test pencil is shinny, proves on metal shell charged, and explanation can be got an electric shock.Be connected with metal shell by ground wire 94, as circuit diagram breaker in middle 95 connects, repeat experiment, test pencil 6 does not work, and prove on metal shell not charged, explanation can not be got an electric shock again.Finally with wire, live wire is connected with metal shell, blown fuse.
The importance of this experiment in order to electrical appliance ground connection to be described, this electrical appliance need be combined with test pencil, and it can tell us, and for metal shell electrical appliance, no matter you connect ground wire, all can not affect electrical appliance work.But do not connect ground wire, have the danger of electric shock, what connect ground wire does not have Danger Electric shock risk.
7. electric circuit inspection
Replaced by detection lamp above-mentioned fuse 10 to be connected on described live wire 3, it is normal for testing circuit under test respectively, electric light short circuit, circuit breaker three kinds of situation analysis.
8. Analysis of Circuit Malfunction
Close the first switch 53 and second switch 54, first bulb 51 and the second bulb 52 shinny.Cut off by live wire 3, with each position in test pencil 6 test circuit, test pencil 6 does not work, circuit breaker.
Change zero line 2 again into cut off, with each position in test pencil 6 test circuit, test pencil 6 is shinny.
Whole zero line 2 is taken down, more described first switch 53 and second switch 54 and electrical appliance are mediated, then test with described test pencil 6, observe phenomena, analyze reason.
In actual life, there will be many circuit abnormality situations in home circuit, home circuit all can be caused dangerous, fault is exactly a kind of form of circuit abnormality, and fault comprises short circuit and open circuit, as above various experiment.The utility model home circuit analyze apparatus for demonstrating, substantially can complete above-mentioned experiment, and more about the experimental project in electricity, safety, reliably.Carry out under the safe voltage of power supply, ensure that the security of operation, realize Fast Learning and grasp electricity knowledge.
Should be understood that, above-mentioned embodiment of the present utility model only for exemplary illustration or explain principle of the present utility model, and is not formed restriction of the present utility model.Therefore, any amendment made when not departing from spirit and scope of the present utility model, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.In addition, the utility model claims be intended to contain fall into claims scope and border or this scope and border equivalents in whole change and modification.
Claims (10)
1. a home circuit analyzes apparatus for demonstrating, it is characterized in that: comprise substrate, be located at the zero line on described substrate and live wire, be connected to the power supply between zero line and live wire and circuit analysis module, and the ground wire be connected on zero line and the testing element be connected on described ground wire, wherein, described circuit analysis module comprises the first bulb, second bulb, first switch, second switch and Three-hole socket, described first bulb is connected zero line and live wire after connecting with the first switch respectively, first switch connects live wire, second bulb is connected zero line and live wire after connecting with second switch respectively, second switch connects zero line, Three-hole socket connects zero line and live wire, earth terminal connects ground wire.
2. home circuit according to claim 1 analyzes apparatus for demonstrating, it is characterized in that: the voltage of described power supply is 3V.
3. home circuit according to claim 1 analyzes apparatus for demonstrating, it is characterized in that: described testing element is test pencil.
4. home circuit according to claim 3 analyzes apparatus for demonstrating, it is characterized in that: described test pencil comprises the light emitting diode of two series connection.
5. home circuit according to claim 1 analyzes apparatus for demonstrating, it is characterized in that: described substrate is that multiple circuit board combines.
6. home circuit according to claim 1 analyzes apparatus for demonstrating, it is characterized in that: described substrate is also equiped with high-power LED lamp and fuse.
7. home circuit according to claim 1 analyzes apparatus for demonstrating, it is characterized in that: described substrate is also equiped with experiment and uses little electric fan.
8. home circuit according to claim 1 analyzes apparatus for demonstrating, it is characterized in that: described substrate is also equiped with test metal shell electrical appliance.
9. home circuit according to claim 8 analyzes apparatus for demonstrating, it is characterized in that: described metal shell electrical appliance comprises carton, two miniature bulbs in parallel, be located in carton for one, another is located at outside carton, miniature bulb in carton is connected to outside carton by wire, and bag is provided with masking foil.
10. home circuit according to claim 1 analyzes apparatus for demonstrating, it is characterized in that: be also provided with short circuit current between the zero line of described substrate and live wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520166291.1U CN204463634U (en) | 2015-03-24 | 2015-03-24 | A kind of home circuit analyzes apparatus for demonstrating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520166291.1U CN204463634U (en) | 2015-03-24 | 2015-03-24 | A kind of home circuit analyzes apparatus for demonstrating |
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| CN204463634U true CN204463634U (en) | 2015-07-08 |
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| CN201520166291.1U Expired - Fee Related CN204463634U (en) | 2015-03-24 | 2015-03-24 | A kind of home circuit analyzes apparatus for demonstrating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117334120A (en) * | 2023-12-01 | 2024-01-02 | 四川职业技术学院 | Electrical control system teaching aid and application method thereof |
-
2015
- 2015-03-24 CN CN201520166291.1U patent/CN204463634U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117334120A (en) * | 2023-12-01 | 2024-01-02 | 四川职业技术学院 | Electrical control system teaching aid and application method thereof |
| CN117334120B (en) * | 2023-12-01 | 2024-02-02 | 四川职业技术学院 | Electrical control system teaching aid and application method thereof |
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| Date | Code | Title | Description |
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| 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: 20150708 Termination date: 20160324 |