CN206788324U - Detection sensor for miniature circuit breaker - Google Patents
Detection sensor for miniature circuit breaker Download PDFInfo
- Publication number
- CN206788324U CN206788324U CN201720669407.2U CN201720669407U CN206788324U CN 206788324 U CN206788324 U CN 206788324U CN 201720669407 U CN201720669407 U CN 201720669407U CN 206788324 U CN206788324 U CN 206788324U
- Authority
- CN
- China
- Prior art keywords
- copper conductor
- electric arc
- mcu
- control information
- circuit breaker
- 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.)
- Withdrawn - After Issue
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 54
- 229910052802 copper Inorganic materials 0.000 claims abstract description 54
- 239000010949 copper Substances 0.000 claims abstract description 54
- 239000004020 conductor Substances 0.000 claims abstract description 51
- 238000010891 electric arc Methods 0.000 claims abstract description 42
- 230000008859 change Effects 0.000 claims abstract description 16
- 230000009471 action Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 235000013399 edible fruits Nutrition 0.000 claims description 2
- 210000004209 hair Anatomy 0.000 claims 1
- 230000004888 barrier function Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
It the utility model is related to sensor technical field; the existing detection sensor for miniature circuit breaker can not be provided simultaneously with electric arc fault protection function and creepage protection function; for this problem; the utility model discloses a kind of detection sensor for miniature circuit breaker, including copper conductor A, copper conductor B, zero sequence current mutual inductor, electric arc transformer, yellow indicator lamp, red led, green indicating lamp, circuit board module and power module.The utility model senses copper conductor A and copper conductor B alternating current vector on test line using zero sequence current mutual inductor and fed back in electric arc transformer; size, change and the waveform of the transformer induced test line AC current of electric arc are utilized simultaneously; by realizing the detection to arc fault in circuit and electric leakage to vector information and curent change information analysis, so as to reach the protection to circuit.
Description
Technical field
It the utility model is related to sensor technical field, more particularly to a kind of detection sensor for miniature circuit breaker.
Background technology
The existing detection sensor function for miniature circuit breaker is relatively simple, can not be provided simultaneously with electric arc fault protection
Function and creepage protection function so that when miniature circuit breaker needs to have two kinds of defencive functions, then need in miniature circuit breaker
It is interior that two kinds of detection sensor is set, not only increase cost, and because detection device is more, add miniature circuit breaker
Fault rate, reduce the reliability used.
Utility model content
For the problems of the prior art, the utility model is provided for having electric arc to ensure work(while miniature circuit breaker
Can be with the detection sensor of creepage protection function.
To realize above technical purpose, the technical solution of the utility model is：A kind of detection for miniature circuit breaker passes
Sensor, including copper conductor A, copper conductor B, zero sequence current mutual inductor, electric arc transformer, yellow indicator lamp, red led, green
Indicator lamp, circuit board module and power module, one end of the copper conductor A are connected with the zero line of miniature circuit breaker, the other end with
Tested load is connected, and one end of the copper conductor B is connected with the live wire of miniature circuit breaker, and the other end is connected with tested load, institute
State copper conductor A and pass through zero sequence current mutual inductor, the copper conductor B passes through zero sequence current mutual inductor and electric arc transformer, the electricity
MCU is provided with inside arc transformer, the signal output part of the MCU is referred to yellow indicator lamp, red respectively by circuit board module
Show that lamp, green indicating lamp are connected with miniature circuit breaker trip gear, the signal output part of the zero sequence current mutual inductor passes through line
Road board component is connected with MCU, and the power module is electric arc transformer for supplying power, the electric arc transformer, yellow indicator lamp, red
Indicator lamp, green indicating lamp and power module are welded on circuit board module；
The zero sequence current mutual inductor is used to sense the vector for the electric current for flowing through copper conductor A and copper conductor B and passes through letter
Number output end feeds back to vector in the MCU of electric arc transformer；
The electric arc transformer is for sensing the size for the electric current for flowing through copper conductor B, waveform changes and change information is anti-
It is fed to the MCU of inside；
The MCU carries out the work shape that analyzing and processing draws tested load to the vector information and change information that receive
State result simultaneously generates corresponding control information according to working condition result, and the working condition result is including tested loaded work piece just
Often, there is arc fault in tested load, tested load has three kinds of leak current fault, and the control information, which includes threading off controlling, to be believed
Breath, yellow indicator lamp control information, red led control information and green indicating lamp control information；
The yellow indicator lamp is used to indicate tested load trip action caused by fault electric arc, the yellow indicator lamp
Receive the yellow indicator lamp control information that MCU is sent and light or extinguish according to the information；
The red led is used to indicate tested load trip action caused by electric leakage, and the red led receives
Red led control information that MCU is sent simultaneously is lighted or extinguished according to the information；
The green indicating lamp is used to indicate that tested load operating condition is normal, and the green indicating lamp receives MCU and sent
Green indicating lamp control information and light or extinguish according to the information；
The miniature circuit breaker trip gear receives dropout control information and acted according to the information.
Preferably, the MCU comprises at least operational amplifying module, AD conversion module and sampling analysis module
From the above, it can be seen that the utility model possesses advantages below：
The utility model flows through copper conductor A and copper conductor B alternating current vector using zero sequence current mutual inductor sensing
And feed back in electric arc transformer, while utilize the size of the transformer induced AC current for flowing through copper conductor B of electric arc, waveform
Change, Treatment Analysis then is carried out to vector information and change information using MCU, if analysis result meets fault electric arc
Characteristic or the characteristic of electric leakage, then MCU send the dropout of dropout control information control circuit, play to circuit while to carry out electric arc former
Barrier protection and earth leakage protective effect.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the connection diagram of the utility model and breaker zero line, live wire and tested load；
Reference：1. copper conductor A, 11. copper conductor A one end, the 12. copper conductor A other end, 2. copper conductor B, 21.
Copper conductor B one end, the 22. copper conductor B other end, 3. zero sequence current mutual inductors, the signal output of 31. zero sequence current mutual inductors
End, 4. electric arc transformers, 5. yellow indicator lamps, 6. red leds, 7. green indicating lamps, 8. circuit board modules.
Embodiment
With reference to Fig. 1 and Fig. 2, a specific embodiment of the present utility model is described in detail, but not to power of the present utility model
Profit requires to do any restriction.
As shown in figure 1, a kind of detection sensor for miniature circuit breaker, including copper conductor A1, copper conductor B2, zero sequence electricity
Current transformer 3, electric arc transformer 4, yellow indicator lamp 5, red led 6, green indicating lamp 7, circuit board module 8 and power supply mould
Block；
Copper conductor A1 one end 11 is connected with the zero line of miniature circuit breaker, and the other end 12 is connected with tested load, copper conductor
B2 one end 21 is connected with the live wire of miniature circuit breaker, and the other end 22 is connected with tested load, and copper conductor A1 passes through zero-sequence current
Transformer 3, copper conductor B2 pass through zero sequence current mutual inductor 3 and electric arc transformer 4, and the inside of electric arc transformer 4 is provided with MCU, MCU's
Signal output part by circuit board module respectively with yellow indicator lamp 5, red led 6, green indicating lamp 7 and miniature circuit breaker
Trip gear is connected, and the signal output part 31 of zero sequence current mutual inductor 3 is connected by circuit board module 8 with MCU, and power module is
Electric arc transformer 4 is powered, and electric arc transformer 4, yellow indicator lamp 5, red led 6, green indicating lamp 7 and power module weld
It is connected on circuit board module 8；
Zero sequence current mutual inductor 3 is used to sense the vector for the electric current for flowing through copper conductor A1 and copper conductor B2 and passes through signal
Output end feeds back to vector in the MCU of electric arc transformer；
Electric arc transformer 4 is used to sense the size for the electric current for flowing through copper conductor B2, waveform change and feeds back change information
To the MCU of inside；
MCU carries out the working condition knot that analyzing and processing draws tested load to the vector information and change information that receive
Fruit simultaneously generates corresponding control information according to working condition result, the working condition result include tested loaded work piece it is normal,
There is arc fault in tested load, tested load has three kinds of leak current fault, and the control information includes dropout control information, Huang
Color indicator lamp control information, red led control information and green indicating lamp control information；
Yellow indicator lamp 5 is used to indicate tested load trip action caused by fault electric arc, and the yellow indicator lamp connects
Receive the yellow indicator lamp control information that MCU is sent and light or extinguish according to the information；
Red led 6 is used to indicate tested load trip action caused by electric leakage, and the red led receives MCU
The red led control information that sends simultaneously is lighted or extinguished according to the information；
Green indicating lamp 7 is used to indicate that tested load operating condition is normal, and the green indicating lamp reception MCU sends green
Color indicator lamp control information is simultaneously lighted or extinguished according to the information；
Miniature circuit breaker trip gear receives dropout control information and acted according to the information.
Wherein, copper conductor A1 and copper conductor B2 can use copper spy soft whipping wire, copper litz wire or copper bar.
Preferably, MCU comprises at least operational amplifying module, AD conversion module and sampling analysis module.
Operation principle of the present utility model is：
1. flow through copper conductor A and copper conductor B AC current vector using zero sequence current mutual inductor sensing and will swear
Measure and feed back in the MCU of electric arc transformer；
2. changed using the size and waveform of the transformer induced AC current for flowing through copper conductor B of electric arc and believe change
Breath is fed back in MCU；
3. using MCU to flowing through copper conductor A and copper conductor B AC current vector information and flowing through copper conductor B's
The size and waveform change information of AC current carry out Treatment Analysis and obtain the working condition result of tested load.If analysis
Then working condition result is that working condition is normal to the characteristic of obtained data fit normal work, then MCU output green instructions
Lamp control information is to control green indicating lamp to light；The working condition if the characteristic for the data fit fault electric arc that analysis obtains
As a result fault electric arc be present for tested load, then MCU sends dropout control information and moved to tripping device for circuit breaker, trip gear
Make that circuit is threaded off, while also send yellow indicator lamp control information to control yellow indicator lamp to light；If analysis obtains
The characteristic of data fit electric leakage then there is electric leakage in working condition result for tested load, then MCU sends dropout control information
To tripping device for circuit breaker, trip gear, which acts, causes circuit to thread off, while also sends red led control information to control
Red led lights.
As shown in Fig. 2 it is the connection diagram of the utility model and miniature circuit breaker zero line, live wire and tested load.
In use, should be integrated in inside miniature circuit breaker, the cap part of three indicator lamps needs the utility model
To be shown on case for circuit breaker, in order to the sensor detection results of observation.
In summary, the utility model has advantages below：
The utility model flows through copper conductor A and copper conductor B alternating current vector using zero sequence current mutual inductor sensing
And feed back in electric arc transformer, while utilize the size of the transformer induced AC current for flowing through copper conductor B of electric arc, waveform
Change, Treatment Analysis then is carried out to vector information and change information using MCU, if analysis result meets fault electric arc
Characteristic or the characteristic of electric leakage, then MCU send the dropout of dropout control information control circuit, play to circuit while to carry out electric arc former
Barrier protection and earth leakage protective effect.
It is understood that above with respect to specific descriptions of the present utility model, it is merely to illustrate the utility model and is not
It is limited to the technical scheme described by the utility model embodiment.It will be understood by those within the art that still can be with
The utility model is modified or equivalent substitution, to reach identical technique effect；As long as satisfaction uses needs, all in this reality
Within new protection domain.
Claims (2)
- A kind of 1. detection sensor for miniature circuit breaker, it is characterised in that：Including copper conductor A (1), copper conductor B (2), zero Sequence current transformer (3), electric arc transformer (4), yellow indicator lamp (5), red led (6), green indicating lamp (7), circuit Board component (8) and power module, one end (11) of the copper conductor A (1) are connected with the zero line of miniature circuit breaker, the other end (12) It is connected with tested load, one end (21) of the copper conductor B (2) is connected with the live wire of miniature circuit breaker, the other end (22) and quilt Survey load to be connected, the copper conductor A (1) passes through zero sequence current mutual inductor (3), and the copper conductor B (2) passes through zero sequence current mutual inductance Device (3) and electric arc transformer (4), the electric arc transformer (4) is internal to be provided with MCU, and the signal output part of the MCU passes through circuit Board component (8) respectively with yellow indicator lamp (5), red led (6), green indicating lamp (7) and miniature circuit breaker trip gear It is connected, the signal output part (31) of the zero sequence current mutual inductor (3) is connected by circuit board module with MCU, the power supply mould Block is powered for electric arc transformer (4), the electric arc transformer (4), yellow indicator lamp (5), red led (6), green instruction Lamp (7) and power module are welded on circuit board module (8)；The zero sequence current mutual inductor (3) is used to sense the vector for the electric current for flowing through copper conductor A and copper conductor B and passes through signal Output end (31) feeds back to vector in the MCU of electric arc transformer (4)；The electric arc transformer (4) is used to sense the size for the electric current for flowing through copper conductor B, waveform change and feeds back change information To the MCU of inside；The MCU carries out the working condition knot that analyzing and processing draws tested load to the vector information and change information that receive Fruit simultaneously generates corresponding control information according to working condition result, the working condition result include tested loaded work piece it is normal, There is arc fault in tested load, tested load has three kinds of leak current fault, and the control information includes dropout control information, Huang Color indicator lamp control information, red led control information and green indicating lamp control information；The yellow indicator lamp (5) is used to indicate tested load trip action caused by fault electric arc, the yellow indicator lamp (5) receive the yellow indicator lamp control information that MCU is sent and light or extinguish according to the information；The red led (6) is used to indicate tested load trip action caused by electric leakage, and the red led (6) connects Receive the red led control information that MCU is sent and light or extinguish according to the information；The green indicating lamp (7) is used to indicate that tested load operating condition is normal, and the green indicating lamp (7) receives MCU hairs The green indicating lamp control information that goes out simultaneously is lighted or extinguished according to the information；The miniature circuit breaker trip gear receives dropout control information and acted according to the information.
- 2. the detection sensor according to claim 1 for miniature circuit breaker, it is characterised in that：The MCU is at least wrapped Include operational amplifying module, AD conversion module and sampling analysis module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720669407.2U CN206788324U (en) | 2017-06-09 | 2017-06-09 | Detection sensor for miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720669407.2U CN206788324U (en) | 2017-06-09 | 2017-06-09 | Detection sensor for miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206788324U true CN206788324U (en) | 2017-12-22 |
Family
ID=60715841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720669407.2U Withdrawn - After Issue CN206788324U (en) | 2017-06-09 | 2017-06-09 | Detection sensor for miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206788324U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179499A (en) * | 2017-06-09 | 2017-09-19 | 艾迪迪电气（苏州）有限公司 | Detection sensor for miniature circuit breaker |
-
2017
- 2017-06-09 CN CN201720669407.2U patent/CN206788324U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179499A (en) * | 2017-06-09 | 2017-09-19 | 艾迪迪电气（苏州）有限公司 | Detection sensor for miniature circuit breaker |
| CN107179499B (en) * | 2017-06-09 | 2023-12-08 | 艾迪迪电气（苏州）有限公司 | Detection sensor for miniature circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171222 Effective date of abandoning: 20231208 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20171222 Effective date of abandoning: 20231208 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |