CN203553046U - Voltage sag prevention delay module - Google Patents
Voltage sag prevention delay module Download PDFInfo
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- CN203553046U CN203553046U CN201320646423.1U CN201320646423U CN203553046U CN 203553046 U CN203553046 U CN 203553046U CN 201320646423 U CN201320646423 U CN 201320646423U CN 203553046 U CN203553046 U CN 203553046U
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- module
- voltage
- delay module
- time delay
- voltage sag
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Abstract
The utility model relates to a voltage sag prevention delay module. The voltage sag prevention delay module comprises a control unit including a central processor CPU module, a detection module and a driver module; a change-over switch electrically connected with the driver module; and an energy storage unit electrically connected with the change-over switch. The central processor CPU module is electrically connected with the detection module and the driver module. With the voltage sag prevention delay module, rapid switching is carried out between an AC power supply and a low-voltage DC power supply, voltage sag can be effectively prevented, and stability and safety of an LN circuit are improved; working conditions of the LN circuit and the voltage sag prevention delay module are detected in real time and switched rapidly through intelligent control, and operational reliability of the LN circuit is effectively ensured; the LN circuit is prevented from being influenced by faults of the voltage sag prevention delay module due to fault automatic quit, and normal operation of the LN circuit is ensured; and misoperation on an AC contactor can be prevented due to anti-interference performance.
Description
Technical field
The utility model relates to electric field, relates to a kind of voltage shock avoiding time delay module.
Background technology
A.C. contactor is the most frequently used automatic control unit of industrial control field, for controlling large current load, as the switch of heavy-duty motor etc.Fig. 1 is existing A.C. contactor LN loop schematic diagram.As shown in the figure, generally, L, N are for exchanging 200V or 380V.The operation principle of A.C. contactor is its pull-in winding energising, and KM switch adhesive, connects load.Pull-in winding power-off, KM switch disconnects.Sometimes, phenomenon that L, N current supply circuit can exist is a kind of " shake electricity ", and LN loop voltage decompression in short-term, the process of recovering very soon again.At this moment, as long as the above or voltage falling of decompression time remaining 50ms surpasses 40% in LN loop, A.C. contactor pull-in winding must discharge, A.C. contactor is disconnected, even if it is normal that voltage recovers very soon, but A.C. contactor cannot recover adhesive automatically, need to rely on LN loop control circuit to restart.Therefore, in the LN control loop that the electricity that shakes causes, a large amount of A.C. contactors surprisingly discharges unexpected interruption, the load disconnection that causes controlling operation, and numerous production equipments are surprisingly stopped, and causes damage.
For A.C. contactor, easily shake electric problem, also there is no at present effective solution.
Utility model content
The purpose of this utility model is the problem that the rolling electrical phenomena that overcomes A.C. contactor affects LN loop stability and fail safe.
For achieving the above object, the utility model provides a kind of voltage shock avoiding time delay module.Comprise:
Control unit, comprises central processor CPU module, detecting module and driver module;
Diverter switch, is electrically connected to described driver module;
Energy-storage units, is electrically connected to described diverter switch;
Described central processor CPU module is electrically connected to described detecting module;
Described central processor CPU module is electrically connected to described driver module.
Preferably, described diverter switch has connectivity port, 1 loop and 1 switching connectivity port.
Preferably, described energy-storage units has connectivity port, 3 loops and 1 switching connectivity port.
Preferably, described energy-storage units is electric capacity.
Preferably, described energy-storage units is output as the low-voltage DC of 10V～20V.
Preferably, the voltage of described low-voltage DC is 12V.
Preferably, described diverter switch is high-speed relay.
When the voltage shock avoiding time delay module of the utility model embodiment is installed in LN loop, can not change the original wiring in LN loop, and can dismantle as required voltage shock avoiding time delay module, to its different energy-storage units that changes the outfit, to be applicable to the A.C. contactor of various different models; By by switching fast between the ac power supply method of 220V or 380V A.C. contactor and low-voltage DC supply mode, realized effective voltage shock avoiding, improved stability and the fail safe of LN loop control system; By intelligentized control unit, the operating state of LN loop and voltage shock avoiding time delay module is carried out detecting real-time and is made fast correct handover operation, effective guarantee LN loop reliability of operation; The automatic exit techniques of fault makes LN loop not be subject to the impact of voltage shock avoiding time delay module fault, has guaranteed the normal work of LN loop control system; There is anti-interference function, reduced LN loop because additionally having installed the interference to operational environment that parts produce additional, thereby avoided the misoperation to A.C. contactor, as the operation that starts or stops of mistake.
Accompanying drawing explanation
Fig. 1 is the line map in existing A.C. contactor LN loop;
Fig. 2 is the line map in the voltage shock avoiding time delay module access LN loop of the utility model embodiment.
Embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
The voltage shock avoiding time delay module of the utility model embodiment adds the method for electric capacity auxiliary power supply by employing direct current supply, realized the effect of voltage shock avoiding.
Fig. 2 is the conspectus in the voltage shock avoiding time delay module access LN loop of the utility model embodiment.As shown in the figure, this voltage shock avoiding time delay module comprises control unit 21, energy-storage units 22 and diverter switch 23.Wherein,
Energy-storage units 22 is critical components of voltage shock avoiding time delay module, can adopt jumbo capacitor batteries.Energy-storage units has 3 loops connectivity port 221-223 and 1 switching connectivity port 224, when occurring rolling electricity and A.C. contactor pull-in winding in attracting state when LN loop, energy-storage units is accessed in LN loop, continue as pull-in winding power supply, to guarantee that pull-in winding has enough energy to keep attracting state and can not disconnect always.Energy-storage units is output as the direct current of 10V～20V.Preferably, the energy-storage units of the utility model embodiment is that output voltage is the capacity cell of 12V, can fast and reliable power supply.
The workflow of the voltage shock avoiding time delay module of the utility model embodiment is as described below:
Under normal condition, the switching connectivity port 232 of diverter switch is connected to LN ring current, is connected with connectivity port, loop 200, and LN ring current is powered to A.C. contactor pull-in winding, now A.C. contactor pull-in winding, in attracting state, can normally be worked.Detecting module is being monitored the operating state in LN loop in real time, electric current in detecting LN loop and change in voltage situation, the state of A.C. contactor KM switch are, the operating state of the electric current of energy-storage units and change in voltage situation and voltage shock avoiding time delay module self, and detecting data is fed back to CPU module, by CPU module, judged; While there is decompression phenomenon in LN loop, if the decompression time is greater than 50 milliseconds, the reason that the voltage data judgement that CPU module is come according to feedback causes decompression phenomenon to produce is the normal turn-off in LN loop or rolling electrical phenomena has occurred:
If judgment result is that the normal turn-off in LN loop, driver module control diverter switch disconnects switching connectivity port 232 and LN ring current, stops the power supply of A.C. contactor pull-in winding, and A.C. contactor obtains discharging reliably disconnection;
If judgment result is that there is rolling electrical phenomena in LN loop, driver module control diverter switch disconnects switching connectivity port 232 and LN ring current be connected to the switching connectivity port 224 of energy-storage units fast, now, A.C. contactor pull-in winding continues power supply by energy-storage units, to guarantee the reliable adhesive of A.C. contactor pull-in winding, can not disconnect, guarantee that each load continues to keep normal operating conditions;
By energy-storage units, be that the power supply of A.C. contactor pull-in winding can continue about 5 seconds, at this moment section in, if detecting module monitors rolling, electrical phenomena disappears, illustrate that LN ring current can recover normal power supply, driver module is controlled diverter switch switching connectivity port 232 and energy-storage units is disconnected, and reconnects to LN ring current.Therefore so, because A.C. contactor is always in attracting state, connected all working load can be remained in operation and need not be by manually restarting, thereby reaches voltage shock avoiding, stablizes the object of LN circuit controls, has improved the fail safe of LN circuit system.
If detecting this voltage shock avoiding time delay module, detecting module self there is fault, diverter switch automatically resets and makes to switch connectivity port 232 and be connected to connectivity port, loop 200, and L and A1, N and A2 automatic short circuit, voltage shock avoiding time delay module exits LN loop control system automatically, has further ensured the safety and reliability of LN loop operation.
As mentioned above, this voltage shock avoiding time delay module has been realized effective voltage shock avoiding effect by control unit, energy-storage units, diverter switch and anti-interference parts.
When the voltage shock avoiding time delay module of the utility model embodiment is installed in LN loop, can not change the original wiring in LN loop, and can dismantle as required voltage shock avoiding time delay module, to its different energy-storage units that changes the outfit, to be applicable to the A.C. contactor of various different models; By by switching fast between the ac power supply method of 220V or 380V A.C. contactor and low-voltage DC supply mode, realized effective voltage shock avoiding, improved stability and the fail safe of LN loop control system; By intelligentized control unit, the operating state of LN loop and voltage shock avoiding time delay module is carried out detecting real-time and is made fast correct handover operation, effective guarantee LN loop reliability of operation; The automatic exit techniques of fault makes LN loop not be subject to the impact of voltage shock avoiding time delay module fault, has guaranteed the normal work of LN loop control system; There is anti-interference function, reduced LN loop because additionally having installed the interference to operational environment that parts produce additional, thereby avoided the misoperation to A.C. contactor, as the operation that starts or stops of mistake.
Above-described embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only embodiment of the present utility model; and be not used in and limit protection range of the present utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (7)
1. a voltage shock avoiding time delay module, is characterized in that, described voltage shock avoiding time delay module comprises:
Control unit, comprises central processor CPU module, detecting module and driver module;
Diverter switch, is electrically connected to described driver module;
Energy-storage units, is electrically connected to described diverter switch;
Described central processor CPU module is electrically connected to described detecting module;
Described central processor CPU module is electrically connected to described driver module.
2. voltage shock avoiding time delay module as claimed in claim 1, is characterized in that, described diverter switch has connectivity port, 1 loop and 1 switching connectivity port.
3. voltage shock avoiding time delay module as claimed in claim 1, is characterized in that, described energy-storage units has connectivity port, 3 loops and 1 switching connectivity port.
4. voltage shock avoiding time delay module as claimed in claim 1, is characterized in that, described energy-storage units is electric capacity.
5. voltage shock avoiding time delay module as claimed in claim 1, is characterized in that, described energy-storage units is output as the low-voltage DC of 10V～20V.
6. voltage shock avoiding time delay module as claimed in claim 5, is characterized in that, the voltage of described low-voltage DC is 12V.
7. voltage shock avoiding time delay module as claimed in claim 1, is characterized in that, described diverter switch is high-speed relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320646423.1U CN203553046U (en) | 2013-10-18 | 2013-10-18 | Voltage sag prevention delay module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320646423.1U CN203553046U (en) | 2013-10-18 | 2013-10-18 | Voltage sag prevention delay module |
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| Publication Number | Publication Date |
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| CN203553046U true CN203553046U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320646423.1U Expired - Fee Related CN203553046U (en) | 2013-10-18 | 2013-10-18 | Voltage sag prevention delay module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538253A (en) * | 2014-12-26 | 2015-04-22 | 深圳合尔凯科技有限公司 | Device for keeping working state of contactor during short-time voltage dropping of power grid |
| CN106301141A (en) * | 2016-08-31 | 2017-01-04 | 新能凤凰（滕州）能源有限公司 | Anti-interference electricity device and method for control loop of asynchronous motor |
| 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 |
-
2013
- 2013-10-18 CN CN201320646423.1U patent/CN203553046U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538253A (en) * | 2014-12-26 | 2015-04-22 | 深圳合尔凯科技有限公司 | Device for keeping working state of contactor during short-time voltage dropping of power grid |
| 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 |
| CN106301141A (en) * | 2016-08-31 | 2017-01-04 | 新能凤凰（滕州）能源有限公司 | Anti-interference electricity device and method for control loop of asynchronous motor |
| CN106301141B (en) * | 2016-08-31 | 2019-06-18 | 新能凤凰（滕州）能源有限公司 | Anti-interference electricity device and method for control loop of asynchronous motor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20151018 |
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| EXPY | Termination of patent right or utility model |