CN205160031U - Device for detecting disconnection - Google Patents

Device for detecting disconnection Download PDF

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Publication number
CN205160031U
CN205160031U CN201520857165.0U CN201520857165U CN205160031U CN 205160031 U CN205160031 U CN 205160031U CN 201520857165 U CN201520857165 U CN 201520857165U CN 205160031 U CN205160031 U CN 205160031U
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CN
China
Prior art keywords
relay
emergency switching
circuit
detection controller
divider resistance
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Active
Application number
CN201520857165.0U
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Chinese (zh)
Inventor
渠吉朋
陈松涛
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Zhenjiang Saiernico Automation Co Ltd
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Zhenjiang Saiernico Automation Co Ltd
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Priority to CN201520857165.0U priority Critical patent/CN205160031U/en
Application granted granted Critical
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Abstract

The utility model discloses a device for detecting disconnection, including detection circuitry, yarn breaking detection controller, detection circuitry includes emergency switching -off button S1, voltage limiting resistance R11, divider resistance R12, emergency switching -off relay EK1, relay K1, emergency switching -off button S1 is parallelly connected with voltage limiting resistance R11 to ally oneself with one termination + the 24V power of circuit, the other end is established ties in proper order and is met GND behind divider resistance R12, relay K1's the normally closed contact, emergency switching -off relay EK1 coil, yarn breaking detection controller includes AD translation unit, singlechip, alarm output circuit, and yarn breaking detection controller signal input part connects between divider resistance R12 and relay K1's normally closed contact, gather voltage signal and deliver to AD translation unit, AD translation unit links to each other with the singlechip, and the singlechip links to each other with alarm output circuit. The utility model discloses can be in the short circuit, open circuit, produce the relay trouble time and report to the police.

Description

Broken thread detector
Technical field
The utility model relates to a kind of broken thread detector, particularly relates to a kind of broken thread detector for boats and ships emergency switching-off circuit, belongs to marine electric installation technical field.
Background technology
Along with the development of boats and ships electrical automation, the guarantee that the security of operation of marine system and system are normally run is all the target that boats and ships electrical automation is pursued.The fusion gradually of boats and ships electrical automation field also overlaps and mutually arranges in pairs or groups.Therefore be also a kind of important measures of safety guarantee as the emergency switching-off relay in case of emergency needing emergency switching-off machine to run.Although under peacetime state, emergency switching-off circuit is in off position, in case of emergency definitely can not occur system line fault, can not occur short-circuit conditions, causes the misoperation of emergency switching-off circuit, cut off the normal operation of ship equipment without reason.Therefore emergency switching-off circuit circuit breaking at ordinary times detects, and relay fault detect, automatically can disconnect the functions such as emergency switching-off circuit and just seem particularly important during short circuit.
Utility model content
The purpose of this utility model is to provide a kind of broken thread detector, realizes the burn out detection warning of boats and ships emergency switching-off circuit, relay fault detect warning, short circuit tripping protection function.
The purpose of this utility model is achieved by the following technical programs:
A kind of broken thread detector, comprise testing circuit 1, burn out detection controller 2, described testing circuit 1 comprises emergency switching-off button S1, pressure limiting resistance R11, divider resistance R12, emergency switching-off relay EK1, relay K 1, described emergency switching-off button S1 is in parallel with pressure limiting resistance R11, one termination+24V power supply of parallel circuits, the other end is connected successively after divider resistance R12, the normally-closed contact of relay K 1, emergency switching-off relay EK1 coil and is met GND; Direct current 24V power supply is powered to burn out detection controller 2, burn out detection controller 2 comprises AD conversion unit, single-chip microcomputer, alarm output circuit, the signal input part of described burn out detection controller 2 is connected between the normally-closed contact of divider resistance R12 and relay K 1, gather voltage signal and deliver to AD conversion unit, described AD conversion unit is connected with single-chip microcomputer, single-chip microcomputer is connected with alarm output circuit, the operating state of alarm output circuit control relay K1 output alarm signal.
The purpose of this utility model can also be realized further by following technical measures:
Aforementioned a kind of broken thread detector, wherein testing circuit 1 is multichannel.
Aforementioned a kind of broken thread detector, wherein pressure limiting resistance R11 is 2000 ohm, and divider resistance R12 is 200 ohm, and emergency switching-off relay EK1 coil working voltage is DC12V.
Aforementioned a kind of broken thread detector, wherein the model of emergency switching-off button S1 is LA18.
Aforementioned a kind of broken thread detector, wherein the model of emergency switching-off relay EK1 is JQC-3F.
Compared with prior art, the beneficial effects of the utility model are: the utility model distinguishes the various states such as broken string, short circuit, relay fault of circuit by sampled voltage, emergency switching-off circuit can be cut off by inside micro relay when short circuit, reaction fast, prevent misoperation, warning and outside relay output alarm point can also be produced when short circuit, open circuit, relay fault.
Accompanying drawing explanation
Fig. 1 is circuit diagram of the present utility model;
Fig. 2 is the circuit structure diagram of burn out detection controller of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.As shown in Figure 1, the utility model broken thread detector, comprise testing circuit 1, burn out detection controller 2, described testing circuit 1 comprises emergency switching-off button S1, pressure limiting resistance R11, divider resistance R12, emergency switching-off relay EK1, relay K 1, described emergency switching-off button S1 is in parallel with pressure limiting resistance R11, one termination+24V power supply of parallel circuits, the other end is connected successively after divider resistance R12, the normally-closed contact of relay K 1, emergency switching-off relay EK1 coil and is met GND; Direct current 24V power supply is powered to burn out detection controller 2, burn out detection controller 2 comprises AD conversion unit, single-chip microcomputer, alarm output circuit, the signal input part of described burn out detection controller 2 is connected between the normally-closed contact of divider resistance R12 and relay K 1, gather voltage signal and deliver to AD conversion unit, described AD conversion unit is connected with single-chip microcomputer, single-chip microcomputer is connected with alarm output circuit, the operating state of alarm output circuit control relay K1 output alarm signal.
Described testing circuit 1 can be multichannel, can carry out emergency switching-off to multichannel.The model of emergency switching-off button S1 is LA18, and the model of emergency switching-off relay EK1 is JQC-3F.Pressure limiting resistance R11 is 2000 ohm, and divider resistance R12 is 200 ohm, and emergency switching-off relay EK1 coil working voltage is DC12V.Described burn out detection controller 2 is Single Chip Microcomputer (SCM) system, and relay K 1 controls its operating state by single-chip microcomputer and alarm output circuit in burn out detection controller 2.
Native system is DC24V Power supply.In normal state, emergency switching-off button S1 is off state, and relay K 1 contact is closure state, electric current can pass through pressure limiting resistance R11, divider resistance R12, and emergency switching-off relay EK1 normally flows through, but emergency switching-off relay EK1 cisco unity malfunction, thus can not action.Now, emergency switching-off relay both end voltage maintains about 1.7V, and sampled voltage is through divider resistance post-sampling voltage at about 0.155V, and in burn out detection controller 2, single-chip microcomputer sampled value should more than 30.If there is the situation broken in this circuit, then sampled voltage is 0, and single-chip microcomputer judges that it is disconnection fault.
Under normal condition, when pressing emergency switching-off button S1, electric current no longer will flow through pressure limiting resistance R11, voltage on emergency switching-off relay EK1 just can allow emergency switching-off relay EK1 normally work, its coil adhesive, the corresponding external equipment of its break of contact, reaches the object of emergency switching-off.Now, the voltage at emergency switching-off relay EK1 two ends is about 11.8V, therefore can normally work.Sampled voltage is about 1.09V, and Chip Microcomputer A/D sampled value should be about 248.
When there is open circuit fault in emergency switching-off relay EK1 coil, the voltage at coil two ends will be increased to about 20V, but there is certain gap with the power supply total voltage 24V in circuit, now, be about 1.8V through dividing potential drop post-sampling voltage, Chip Microcomputer A/D sampled value about 385, after microprocessor detect to this value, by alarm output circuit output alarm signal.As shown in Figure 1,11,12,14 ends of burn out detection controller 2 export for reporting to the police, and 11,12 end inside are a normally opened contact, and 11,14 end inside are a normally-closed contact.
, easily there is damaged short-circuit conditions in boats and ships external cabling, when there is short-circuit conditions, causing shutting down phenomenon, will cut off whole circuit in time to prevent emergency switching-off relay EK1 misoperation.Now, relay both end voltage reaches 24V instantaneously, after sampling resistor dividing potential drop, voltage is about 2.2V, the AD sampled value of single-chip microcomputer is about 450, judge after microprocessor detect to this value to occur short trouble, the coil of control relay K1 obtains electric, and its normally-closed contact disconnects, testing circuit 1 cannot be worked, prevent emergency switching-off relay EK1 misoperation.
Under above different conditions single-chip microcomputer AD sampled value we, by distinguishing different AD sample states values, we can judge different states, so produce report to the police and effectively cut off process.Reach we want the result asked.
In addition to the implementation, the utility model can also have other execution modes, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection range of the utility model requirement.

Claims (5)

1. a broken thread detector, it is characterized in that, comprise testing circuit (1), burn out detection controller (2), described testing circuit (1) comprises emergency switching-off button S1, pressure limiting resistance R11, divider resistance R12, emergency switching-off relay EK1, relay K 1, described emergency switching-off button S1 is in parallel with pressure limiting resistance R11, one termination+24V power supply of parallel circuits, the other end is connected successively after divider resistance R12, the normally-closed contact of relay K 1, emergency switching-off relay EK1 coil and is met GND; Direct current 24V power supply is powered to burn out detection controller (2), burn out detection controller (2) comprises AD conversion unit, single-chip microcomputer, alarm output circuit, the signal input part of described burn out detection controller (2) is connected between the normally-closed contact of divider resistance R12 and relay K 1, gather voltage signal and deliver to AD conversion unit, described AD conversion unit is connected with single-chip microcomputer, single-chip microcomputer is connected with alarm output circuit, the operating state of alarm output circuit control relay K1 output alarm signal.
2. broken thread detector as claimed in claim 1, it is characterized in that, described testing circuit (1) is multichannel.
3. broken thread detector as claimed in claim 1, it is characterized in that, described pressure limiting resistance R11 is 2000 ohm, and divider resistance R12 is 200 ohm, and emergency switching-off relay EK1 coil working voltage is DC12V.
4. broken thread detector as claimed in claim 1, it is characterized in that, the model of described emergency switching-off button S1 is LA18.
5. broken thread detector as claimed in claim 1, it is characterized in that, the model of described emergency switching-off relay EK1 is JQC-3F.
CN201520857165.0U 2015-11-02 2015-11-02 Device for detecting disconnection Active CN205160031U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520857165.0U CN205160031U (en) 2015-11-02 2015-11-02 Device for detecting disconnection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520857165.0U CN205160031U (en) 2015-11-02 2015-11-02 Device for detecting disconnection

Publications (1)

Publication Number Publication Date
CN205160031U true CN205160031U (en) 2016-04-13

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105391022A (en) * 2015-11-02 2016-03-09 镇江赛尔尼柯自动化有限公司 Broken circuit detection device
CN107180508A (en) * 2017-05-22 2017-09-19 南京英安特科技实业有限公司 A kind of system and method for alarm defence area multiplication

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105391022A (en) * 2015-11-02 2016-03-09 镇江赛尔尼柯自动化有限公司 Broken circuit detection device
CN107180508A (en) * 2017-05-22 2017-09-19 南京英安特科技实业有限公司 A kind of system and method for alarm defence area multiplication

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
EE01 Entry into force of recordation of patent licensing contract

Assignee: Zhenjiang SaierNico Electric & Automation Co., Ltd.

Assignor: Zhenjiang SaierNico Automation Co., Ltd.

Contract record no.: 2016320000179

Denomination of utility model: Current injection neutral conductor wire breakage detection device and method

Granted publication date: 20160413

License type: Exclusive License

Record date: 20160721