CN203850919U - Anti-interference electricity contactor time-delay device - Google Patents

Anti-interference electricity contactor time-delay device Download PDF

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Publication number
CN203850919U
CN203850919U CN201420265675.4U CN201420265675U CN203850919U CN 203850919 U CN203850919 U CN 203850919U CN 201420265675 U CN201420265675 U CN 201420265675U CN 203850919 U CN203850919 U CN 203850919U
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CN
China
Prior art keywords
module
contactor
power supply
time
state detection
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Expired - Lifetime
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CN201420265675.4U
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Chinese (zh)
Inventor
王晓辉
戴顺辉
施红雷
彭江
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SHANGHAI HUAJIAN ELECTRICAL EQUIPMENT CO Ltd
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SHANGHAI HUAJIAN ELECTRICAL EQUIPMENT CO Ltd
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Priority to CN201420265675.4U priority Critical patent/CN203850919U/en
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Publication of CN203850919U publication Critical patent/CN203850919U/en
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Abstract

The utility model discloses an anti-interference electricity contactor time-delay device. The anti-interference electricity contactor time-delay device includes an alternating current auxiliary power source input module, an auxiliary power source state detection module, a switch power source module, a switch power source state detection module, a pull-in voltage circuit module, a holding voltage circuit module, a selective control switch module, a keys, display, alarm and output module, a contactor coil, a contactor coil running state detection module and a main control unit module. According to the anti-interference electricity contactor time-delay device, a 0.1s-to-9.9s delay time settable range and a 2.0V-to-12V holding voltage adjustable range can be realized through setting different parameters, and power-losing voltage and recovery voltage are settable; display and alarm outlets as well as an action output outlet are provided; and therefore, the anti-interference electricity contactor time-delay device of the utility model has the advantages of high reliability, flexible selective application, low cost and energy-saving performance and simple control line. With the anti-interference electricity contactor time-delay device adopted, a contactor can be released in a time-delayed manner when interference electricity exists in a system.

Description

A kind of anti-shake electric contactor time-delay mechanism
Technical field
A kind of anti-shake electric contactor time-delay mechanism of the utility model, relates to one " voltage shock avoiding " technical field, particularly contactor continued power time delay release tech field.
Background technology
" shaking electric " is that thunder and lightning, short circuit, duplicate supply switching, transient fault and other reason cause, and causes that voltage has the phenomenon fluctuating widely very much.If there is to shake electricity, the ac contactor coil of general electric equipment will make contactor thread off because of coil both end voltage lower than maintaining voltage, main contact disconnects, cause pump stoppage in transit, equipment to have a power failure, the continuity that impact is produced, cause unnecessary economic loss, easily cause work safety accident, damage production equipment.Especially petrochemical enterprise of a lot of enterprises, some important pumps, in the situation that having consecutive production requirement, do not allow equipment to interrupt in short-term at power supply causing unit trip to have a power failure in the process of (shake electricity) in technique.In order to meet the requirement of enterprise's consecutive production, make the production of enterprise avoid the impact of the factors such as instantaneous power-off, rolling electricity, power network fluctuation, must adopt technological means to address the above problem.
The function of voltage shock avoiding is mainly on device coil, to adopt some means to ensure that contactor does not trip in the time shaking electricity connecing, its cardinal principle is the closure that ensures main noddle on contactor, and this closure has several approach: mechanical locker mode, permanent-magnet type, uninterrupted power supply UPS power supply and continued power type.Time delay snap close head unit, after contactor adhesive, coil proceeds to battery saving mode, and keeps main contact on-state by snap close head snap action.Shake electricity while occurring main noddle on contactor do not disconnect, just disconnect carrying out main contact after orderly closedown operation.But this snap close head can only be used in conjunction with custom-designed special contactor, and the main contact being locked by snap close head disconnects independently power supply in the situation that of power-off.Permanent-magnet type A.C. contactor, is utilize electricity positive and negative, produces magnetic field and permanent magnet interaction quick pick-up and the releasing contactor of different directions.After probe of contactor adhesive, the current cut-off of sucking coil, coil is not worked, not power consumption, and coil can not generate heat, and relies on permanent magnetic that contact is remained on to attracting state completely, is not subject to the impact of voltage ripple of power network.Owing to utilizing electromagnetic induction work, easily produce electromagnetic interference, therefore higher to on-the-spot environment for use, be not suitable for the environment that has the transmission of mass communication signal.Uninterrupted power supply UPS power supply, ups system is generally made up of rectifier, inverter, storage battery and static switch etc., and when civil power is normal, civil power is transformed to direct current through rectifier and supplies with inverter, charge a battery, direct current is transformed to alternating current supply load by inverter simultaneously.Cost is high, complex circuit, and failure rate is high.Continued power type, adopts energy storage delay cell, continues to provide energy to the coil of contactor during rolling point, ensures the adhesive of main contact.Anti-shake electric contactor time delay module, utilize the inner power supply that discharges and recharges in the short time, to provide maintenance voltage to contactor coil in the time occurring to shake electricity, main noddle on contactor is not thrown off, other loop control principle is unchanged, in control loop, the equipment of a unique power consumption is exactly contactor coil, and required voltage is provided by module.Normal operating conditions lower device is in energy storage state, while there is " shaking electric ", module is started working, keep in touch device continuation adhesive to store up releasable form, after supply voltage recovers, control module has proceeded to again energy storage state, it does not rely on back work power supply and auxiliary machinery in addition, thereby volume is little, and reliability is high.But the shortcoming of this control mode is exactly expensive.
Utility model content
The purpose of this utility model is the various deficiencies in order to overcome existing anti-shake power technology, has designed a kind of high reliability, has selected applying flexible, low cost, the energy-conservation and simple anti-shake electric contactor time-delay mechanism of control circuit.Its technical scheme adopting is: comprise and exchange auxiliary Power Entry Module, accessory power supply state detection module, switch power module, Switching Power Supply state detection module, pick-up voltage circuit module, holding voltage circuit module, select control switch module, button, show, report to the police, output module, contactor coil, contactor coil condition monitoring module and main control unit module are in interior structure, it is characterized in that: exchange auxiliary Power Entry Module respectively with accessory power supply state detection module, switch power module, pick-up voltage circuit module, select control switch module to be connected, accessory power supply state detection module is connected with main control unit module again, switch power module is connected with Switching Power Supply state detection module, holding voltage circuit module respectively again, Switching Power Supply detection module is connected with main control unit module again, pick-up voltage module is connected with selecting control switch module again, holding voltage circuit module is connected with main control unit module with selecting control switch module respectively again, select control switch module to be connected with main control unit module with contactor coil respectively again, contactor coil is connected with contactor coil condition monitoring module again, contactor coil condition monitoring module is connected with main control unit module again, main control unit module is connected with button, demonstration, warning, output module again, the auxiliary Power Entry Module of described interchange is realized security protection and filtering, described accessory power supply state detection module is made up of voltage transformer and amplifier, realizes the detection of accessory power supply voltage magnitude, described switch power module is realized power conversion, provides each module required power supply, described Switching Power Supply state detection module is realized Switching Power Supply condition monitoring, finds in time Switching Power Supply abnormality, described pick-up voltage circuit module is made up of full-wave rectifying circuit and electric capacity, the pick-up voltage needing while realizing ac contactor coil adhesive, described holding voltage module provides Yi road voltage and adjustable output voltage module to form by switch power module, realizes the required holding voltage of adjustable contactor coil, described selection control module is made up of multichannel selective relay, realizes the selection output that exchanges accessory power supply, pick-up voltage, holding voltage, contactor condition monitoring module realizes the detection of contactor running status, halted state, described button, demonstration, warning, output module are realized human-computer interaction interface, can set rolling electric delay time, dead electricity voltage definite value and recovery voltage definite value, and testing button is adjusted holding voltage automatically, main control unit module realizes the detection of the detection of measurement calculating, the Switching Power Supply running status of accessory power supply voltage, the adjusting of holding voltage, the selection of selecting control switch, contactor running status and parameter input, the demonstration of state, warning, output function.
Device can be realized the established scope of 0.1s to the delay time of 9.9s by setting different parameters, 2.0V is to the holding voltage adjustable extent of 12V, dead electricity voltage, recovery voltage can be established, there is demonstration, warning outlet, action output outlet, thereby realize high reliability, selected applying flexible, the function of low cost, energy-conservation and control circuit simple anti-shake electric contactor time delay module, reached the object of delayed releasing contactor function when system is shaken electricity.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Wherein: 1-exchanges auxiliary Power Entry Module, 2-accessory power supply state detection module, 3-switch power module, 4-Switching Power Supply state detection module, 5-pick-up voltage circuit module, 6-holding voltage circuit module, 7-selects control switch module; 8-button, demonstration, warning, output module, 9-contactor coil, 10-contactor condition monitoring module, 11-main control unit module.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
See accompanying drawing 1, main control unit module 11 is cores of device, MCU adopts the MSP430F249 of TI company, there is abundant internal hardware resources, input signal is carried out to computing, logic analysis, send control signal, exchange auxiliary Power Entry Module 1 and provide safety for subsequent module, pure AC power, accessory power supply state detection module 2 converts accessory power supply, realize the measurement of accessory power supply voltage magnitude, there is storage capacitor switch power module 3 inside, more than the power supply 10s of each module needs can be provided in the time of accessory power supply dead electricity, Switching Power Supply state detection module 4 is realized the detection whether Switching Power Supply running status is intact, pick-up voltage circuit module 5 provides contactor coil reliable pick-up voltage, holding voltage circuit module 6 is realized the Voltage-output of adjustable 2V to 12V, the output of selecting control switch module 7 to realize the different voltages of different conditions is selected, button, show, report to the police, output module 8 provides man-machine interface, can set delay time, dead electricity voltage definite value, recovery voltage definite value, the various operating states of display unit, output alarm and work state information, contactor coil 9 is external contactor coil, whether contactor condition monitoring module 10 realizes contactor and detects in working order.
See accompanying drawing 1, when system standby, it is normal that accessory power supply state detection module 2 detects accessory power supply voltage magnitude, Switching Power Supply state detection module 4 sense switch power supply running statuses are normal, contactor condition monitoring module 10 detects contactor off-duty, main control unit module 11 is sent instruction to selecting control switch module 7, the pick-up voltage being provided by pick-up voltage circuit module 5 is provided to be exported, main control unit module 11 is sent instruction simultaneously and is exported suitable holding voltage to holding voltage circuit module 6, it is now holding state, can close a floodgate normally, when outside switch knob is pressed, on contactor coil 9, just apply the pick-up voltage that pick-up voltage circuit module 5 provides, contactor coil adhesive, when contactor condition monitoring module 10 detects adhesive of contactor, main control unit module 11 time delay 60ms, the holding voltage of selecting control switch module 7 to provide holding voltage circuit module 6 to export to contactor coil 9 is provided, whole making process completes, in the time carrying out normal separating brake, it is normal that accessory power supply state detection module 2 detects accessory power supply, contactor condition monitoring module 10 detects contactor and becomes gate-dividing state by "on" position, Switching Power Supply detection module 2 sense switch power supply normal operations, be judged as normal separating brake, main control unit module 11 is sent instruction and is switched to selecting control switch module 7 that the holding voltage being provided by holding voltage circuit module 6 is provided the pick-up voltage that pick-up voltage circuit module 6 provides, for close a floodgate and prepare next time, complete the process of normal separating brake, in the time of normal operation, if it is "on" position that contactor condition monitoring module 10 detects contactor, accessory power supply state detection module 2 detects accessory power supply and is less than from normally becoming the dead electricity voltage definite value that can set, the 4 sense switch power supply outputs of Switching Power Supply state detection module are normal, the system that is judged as is shaken electric, main control unit module 11 continues to provide holding voltage to contactor coil 10 in the delay time of setting, if before delay time finishes, accessory power supply voltage recovers, just finish time delay, enter normal operating condition, if delay time has arrived, accessory power supply voltage magnitude does not also return on the recovery voltage definite value of setting, be judged as system dead electricity overtime, main control unit module 11 sends instructions to the interchange accessory power supply of selecting control switch module 7 to switch to be output as to exchange the dead electricity that auxiliary Power Entry Module 1 provides, contactor discharges, complete the process that the overtime contactor of dead electricity discharges.
At accessory power supply during without electricity, select control switch module 7 to be defaulted as and select to exchange auxiliary Power Entry Module 1 for output, in the time that Switching Power Supply state detection module 4 detects that Switching Power Supply running status is abnormal, main control unit module 11 sends instructions to selecting control switch module 7 to select to exchange auxiliary Power Entry Module 1 for output, make the bypass of anti-shake electric contactor time delay module, the operation of not impact system, button, demonstration, warning, output module show, indicate and export various states simultaneously.
Can complete by testing button automatic imitation the setting of holding voltage at test phase.

Claims (1)

1. an anti-shake electric contactor time-delay mechanism, comprises and exchanges auxiliary Power Entry Module, accessory power supply state detection module, switch power module, Switching Power Supply state detection module, pick-up voltage circuit module, holding voltage circuit module, select control switch module, button, show, report to the police, output module, contactor coil, contactor coil condition monitoring module and main control unit module, interior, is characterized in that: exchange auxiliary Power Entry Module respectively with accessory power supply state detection module, switch power module, pick-up voltage circuit module, select control switch module to be connected, accessory power supply state detection module is connected with main control unit module again, switch power module again respectively with Switching Power Supply state detection module, holding voltage circuit module is connected, Switching Power Supply detection module is connected with main control unit module again, pick-up voltage module is connected with selecting control switch module again, holding voltage circuit module is connected with main control unit module with selecting control switch module respectively again, select control switch module to be connected with main control unit module with contactor coil respectively again, contactor coil is connected with contactor coil condition monitoring module again, contactor coil condition monitoring module is connected with main control unit module again, main control unit module again with button, show, report to the police, output module is connected.
CN201420265675.4U 2014-05-23 2014-05-23 Anti-interference electricity contactor time-delay device Expired - Lifetime CN203850919U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420265675.4U CN203850919U (en) 2014-05-23 2014-05-23 Anti-interference electricity contactor time-delay device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420265675.4U CN203850919U (en) 2014-05-23 2014-05-23 Anti-interference electricity contactor time-delay device

Publications (1)

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CN203850919U true CN203850919U (en) 2014-09-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106328441A (en) * 2015-06-18 2017-01-11 上海华建电力设备股份有限公司 Delay release controller
CN106783399A (en) * 2017-03-01 2017-05-31 上海电机学院 A kind of intelligent type permanent magnet contactor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106328441A (en) * 2015-06-18 2017-01-11 上海华建电力设备股份有限公司 Delay release controller
CN106783399A (en) * 2017-03-01 2017-05-31 上海电机学院 A kind of intelligent type permanent magnet contactor

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Granted publication date: 20140924