CN205484714U - Circuit is listened to killer switch state - Google Patents

Circuit is listened to killer switch state Download PDF

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Publication number
CN205484714U
CN205484714U CN201620249018.XU CN201620249018U CN205484714U CN 205484714 U CN205484714 U CN 205484714U CN 201620249018 U CN201620249018 U CN 201620249018U CN 205484714 U CN205484714 U CN 205484714U
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China
Prior art keywords
resistance
input
comparator
circuit
photoelectrical coupler
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CN201620249018.XU
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Chinese (zh)
Inventor
赫季芬
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Guangzhou Yi energy refrigeration equipment Technology Co., Ltd.
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赫季芬
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Abstract

The utility model belongs to the technical field of power electronic, concretely relates to circuit is listened to killer switch state. Optoelectronic coupler U1's input positive pole connects the input of circuit breaker through first diode D1 and first resistance R1, and optoelectronic coupler U1's input negative pole connects the output of circuit breaker through second resistance R2, optoelectronic coupler U1's first output termination comparator U2's syntropy input V2, optoelectronic coupler U1's second output ground connection, fourth resistance R4 and the 5th resistance R5 connect between power vcc2 and ground after establishing ties, and comparator U2's reverse input end V1 connects fourth resistance R4 and the 5th resistance R5's common port, and comparator U2's syntropy input V2 is through third resistance R3 power connection vcc1, and comparator U2's output V3 meets emitting diode D3's negative pole and IO port, emitting diode D3's positive pole power connection vcc2 respectively.

Description

A kind of circuit breaker switch state circuit for detecting
Technical field
This utility model belongs to electric and electronic technical field, is specifically related to a kind of circuit breaker switch state detecting electricity Road.
Background technology
In recent years, along with the fast development of science and technology, electrical equipment occupies increasingly in industrial automation system Important position.In the electric power system of electrical equipment and control system, it is required for using protection components and parts to electricity Road carries out short-circuit protection or heavy overload protection.Protection components and parts have concatenation overcurrent protection unit device in circuit Part, and the overvoltage protection components and parts that parallel connection is in circuit.
Chopper (circuit-breaker) refers to close, carry and cut-off under normal loop condition Electric current the switching device of electric current that can close, carry within the time of regulation and cut-off under abnormal loop condition. Chopper can be used to distribute electric energy, infrequently starts asynchronous motor, real to power circuit and motor etc. Row protection, when there are serious overloads or the fault such as short-circuit and under-voltage in them can automatic shutdown circuit, its Function is equivalent to Fuse switch and crosses the combination of underheat relay etc..And after disjunction fault current one As need not change parts.
Circuit safety is most important ingredient in people's productive life, and chopper is as the switch of isolation electricity consumption Equipment, can not only ensure circuit safety, makes electrical equipment normally work, but also has protection electricity consumption and set Standby and the personal safety of staff.Leading of side circuit operating interruptions road device the most effectively control circuit Lead to and turn off, being the effective guarantee of circuit safety.
But in productive life, chopper is a lot, and is distributed to different places, the concentration of very inconvenient chopper Management controls.For scattered chopper, existing State-Inspect of High-Voltage Circuit is for each circuit-breaker status Detect one by one.Existing detection mode is that staff uses circuit tester or test pencil to each chopper Chopper is detected by location, and this detection mode is not only lost time, and testing result is also required to manually remember Record, and cost of labor is high.
Utility model content
The state of artificial detection chopper the most one by one is used for prior art, the problem taken time and effort, The utility model proposes a kind of circuit breaker switch state circuit for detecting, this circuit breaker switch state circuit for detecting Chopper can be detected be in on-state and be in off-state.Only need to be by this circuit breaker switch state Circuit for detecting is connected with chopper, it is not necessary to increase extra structure, with low cost.
This utility model adopts the following technical scheme that
A kind of circuit breaker switch state circuit for detecting, it include the first resistance R1, the first diode D1, second Resistance R2, photoelectrical coupler U1, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, comparator U2 With light emitting diode D3, the input anode of photoelectrical coupler U1 is through the first diode D1 and the first resistance R1 Connecing the input of chopper, the input cathode of photoelectrical coupler U1 connects the defeated of chopper through the second resistance R2 Go out end, the input V2 in the same direction of the first output termination comparator U2 of photoelectrical coupler U1, photoelectrical coupler Second output head grounding of U1;4th resistance R4 and the 5th resistance R5 series connection is followed by power Vcc 2 and ground Between, the reverse input end V1 of comparator U2 connects the 4th resistance R4 and the common port of the 5th resistance R5, compares The V2 of input in the same direction of device U2 connects power Vcc 1 through the 3rd resistance R3, and the outfan V3 of comparator U2 is respectively The negative electrode of sending and receiving optical diode D3 and I/O port, the anode of light emitting diode D3 connects power Vcc 2.
Further, also include that the second diode D2, the positive pole of the second diode D2 connect the 3rd resistance R3's One end, the negative pole of the second diode D2 meets the input V2 in the same direction of comparator U2.
Further, light emitting diode D3 is yellow light-emitting diode.
Further, photoelectrical coupler U1 is the photoelectrical coupler of audion output type.
The utility model proposes a kind of circuit breaker switch state circuit for detecting, for detecting the switch of chopper State, and the on off state of chopper is fed back.This utility model uses simple electronic circuit, inspection Surveying chopper input and the change in voltage situation of outfan, design is simple, with low cost, can be used for detecting The on off state of chopper, fuse etc..
Accompanying drawing explanation
Fig. 1 is the schematic diagram of circuit breaker switch state circuit for detecting.
Detailed description of the invention
For further illustrating each embodiment, this utility model is provided with accompanying drawing.These accompanying drawings are this utility model A part for disclosure, it is mainly in order to illustrate embodiment, and the associated description of description can be coordinated to solve Release the operation principles of embodiment.Coordinating with reference to these contents, those of ordinary skill in the art will be understood that other Possible embodiment and advantage of the present utility model.Assembly in figure is not necessarily to scale, and is similar to Element numbers be conventionally used to indicate similar assembly.
In conjunction with the drawings and specific embodiments, this utility model is further illustrated.
Refering to shown in Fig. 1, a kind of circuit breaker switch state circuit for detecting of a this utility model preferably embodiment, It includes the first resistance R1, the first diode D1, the second resistance R2, photoelectrical coupler U1, the 3rd resistance R3, the second diode D2, the 4th resistance R4, the 5th resistance R5, comparator U2 and light emitting diode D3.
The input anode of photoelectrical coupler U1 connects the defeated of chopper through the first diode D1 and the first resistance R1 Entering to hold A, the positive pole of the first diode D1 connects one end of the first resistance R1, and the negative pole of the first diode D1 connects The input anode of photoelectrical coupler U1, the input cathode of photoelectrical coupler U1 connects disconnected through the second resistance R2 The outfan B of road device.The input V2 in the same direction of the first output termination comparator U2 of photoelectrical coupler U1, light Second output head grounding of electric coupler U1.
4th resistance R4 and the 5th resistance R5 series connection is followed by between power Vcc 2 and ground, comparator U2's Reverse input end V1 connects the 4th resistance R4 and the common port of the 5th resistance R5.The input in the same direction of comparator U2 End V2 connects power Vcc 1 through the second diode D2 and the 3rd resistance R3, and the positive pole of the second diode D2 connects the One end of three resistance R3, the negative pole of the second diode D2 meets the input V2 in the same direction of comparator U2.Comparator The negative electrode of the outfan V3 of U2 sending and receiving optical diode D3 respectively and I/O port, the anode of light emitting diode D3 Connect power Vcc 2.
When chopper disconnects, the input A of chopper is high level, the outfan B ground connection of chopper, The input anode of photoelectrical coupler U1 connects the input of chopper through the first diode D1 and the first resistance R1 A, the i.e. input anode of photoelectrical coupler U1 are high level.The input cathode of photoelectrical coupler U1 is through Two resistance R2 connect the input cathode ground connection of the outfan B of chopper, i.e. photoelectrical coupler U1, photoelectric coupling Device U1 turns on.The V2 ground connection of input in the same direction of comparator U2, power Vcc 1 is through the 4th resistance R4 and the 5th Resistance R5 dividing potential drop, the reverse input end V1 of comparator U2 is the voltage at the 5th resistance R5 two ends, relatively device U2 Voltage more than input V2 in the same direction of the voltage of reverse input end V1, the outfan V3 of comparator U2 is Low level (ground connection), light emitting diode D3 constitutes loop, and light emitting diode D3 is bright, and I/O port is low level.
When breaker closing, the input A and outfan B of chopper are all high level, photoelectrical coupler The input anode of U1 and input cathode do not constitute pressure reduction, therefore photoelectrical coupler U1 is in by state.This Time, the V2 of input in the same direction of comparator U2 connects power Vcc 1 through the second diode D2 and the 3rd resistance R3, Therefore the voltage of the V2 of input in the same direction of comparator U2 is Vcc1, power Vcc 1 is through the 4th resistance R4 and the 5th Resistance R5 dividing potential drop, the reverse input end V1 of comparator U2 is the voltage at the 5th resistance R5 two ends, relatively device U2 Voltage less than input V2 in the same direction of the voltage of reverse input end V1, the outfan V3 of comparator U2 is (defeated Go out level signal) it is high-impedance state, block the conducting of light emitting diode D3, light emitting diode D3 does not works, I/O Port is high level.
It should be noted that the light emitting diode D3 of this embodiment is yellow light-emitting diode.Photoelectrical coupler U1 is the photoelectrical coupler of audion output type.
Although specifically show and describe this utility model in conjunction with preferred embodiment, but the technology of art Personnel should be understood that in the spirit and scope of the present utility model limited without departing from appended claims, This utility model can be made a variety of changes in the form and details, be protection model of the present utility model Enclose.

Claims (4)

1. a circuit breaker switch state circuit for detecting, it is characterised in that: it includes the first resistance R1, the one or two pole Pipe D1, the second resistance R2, photoelectrical coupler U1, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, comparator U2 and light emitting diode D3, the input anode of described photoelectrical coupler U1 is through the one or two Pole pipe D1 and the first resistance R1 connects the input of chopper, the input cathode warp of photoelectrical coupler U1 Second resistance R2 connects the outfan of chopper, the first output termination comparator U2 of photoelectrical coupler U1 Second output head grounding of input V2 in the same direction, photoelectrical coupler U1;4th resistance R4 and the 5th electricity Resistance R5 series connection is followed by between power Vcc 2 and ground, and the reverse input end V1 of comparator U2 connects the 4th electricity Resistance R4 and the common port of the 5th resistance R5, the V2 of input in the same direction of comparator U2 is through the 3rd resistance R3 Connect power Vcc 1, the negative electrode of the outfan V3 of comparator U2 sending and receiving optical diode D3 respectively and I/O end Mouthful, the anode of light emitting diode D3 connects power Vcc 2.
2. circuit breaker switch state circuit for detecting as claimed in claim 1, it is characterised in that: also include the two or two The positive pole of pole pipe D2, the second diode D2 connects one end of the 3rd resistance R3, and the second diode D2's is negative Pole meets the input V2 in the same direction of comparator U2.
3. circuit breaker switch state circuit for detecting as claimed in claim 1, it is characterised in that: described light-emitting diodes Pipe D3 is yellow light-emitting diode.
4. circuit breaker switch state circuit for detecting as claimed in claim 1, it is characterised in that: described photoelectric coupling Device U1 is the photoelectrical coupler of audion output type.
CN201620249018.XU 2016-03-24 2016-03-24 Circuit is listened to killer switch state Active CN205484714U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620249018.XU CN205484714U (en) 2016-03-24 2016-03-24 Circuit is listened to killer switch state

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620249018.XU CN205484714U (en) 2016-03-24 2016-03-24 Circuit is listened to killer switch state

Publications (1)

Publication Number Publication Date
CN205484714U true CN205484714U (en) 2016-08-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107957547A (en) * 2017-11-27 2018-04-24 深圳市英威腾电气股份有限公司 A kind of D.C. contactor detecting system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107957547A (en) * 2017-11-27 2018-04-24 深圳市英威腾电气股份有限公司 A kind of D.C. contactor detecting system

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CB03 Change of inventor or designer information
TR01 Transfer of patent right
CB03 Change of inventor or designer information

Inventor after: Huang Junchang

Inventor after: Huang Weiliu

Inventor before: He Jifen

TR01 Transfer of patent right

Effective date of registration: 20170405

Address after: 511400 Guangdong science and technology innovation building, Panyu energy saving science and Technology Park, No. 730 Yingbin Road, Panyu District, Guangzhou, China, Room 302

Patentee after: Guangzhou Yi energy refrigeration equipment Technology Co., Ltd.

Address before: 233500 Anhui city of Bozhou province Mengcheng County Xiao Xin Ji Xiang Xinji community Xinji Street No. 70-763

Patentee before: He Jifen