CN202523641U - Switch type electricity loss time-delayed release device - Google Patents
Switch type electricity loss time-delayed release device Download PDFInfo
- Publication number
- CN202523641U CN202523641U CN2012200293456U CN201220029345U CN202523641U CN 202523641 U CN202523641 U CN 202523641U CN 2012200293456 U CN2012200293456 U CN 2012200293456U CN 201220029345 U CN201220029345 U CN 201220029345U CN 202523641 U CN202523641 U CN 202523641U
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- contactor
- diode
- converting module
- release device
- delayed release
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Abstract
A switch type electricity loss time-delayed release device basically comprises a capacitor, six diodes and a DC/DC conversion module. With the device, an alternating current is rectified to a direct current, electromagnet attraction and time-delayed release of stored electricity in the case of electricity loss are completed through the capacitor, and the current of normal working is provided for the electromagnet through the DC/DC conversion module. The device can be used for silent energy-saving running and electricity loss time-delayed release of an alternating current contactor. When the device is used in factories and mines in need of continuous production, the production can be effectively prevented from being interrupted due to short-time electricity loss area of a power supply. When a micro relay is added inside the device, the device can further be used for controlling electromagnets such as an electromagnetic valve. In addition, the device can replace the control switch of the electromagnet, and the silent energy-saving running and the electricity loss time-delayed release work of the electromagnet can be realized.
Description
Technical field
The utility model relates to a kind of A.C. contactor switching mode dead electricity extended release device; Be mainly used in continuous production unit and prevent electrical network dead electricity and the production that causes is interrupted in short-term, have the purpose that makes A.C. contactor or other electromagnetically operated valve, the operation of high-speed double electromagnet silent power-saving simultaneously.
Background technology
Disclosed utility model patent " energy-saving electrical network flashing the retainer " (patent No.: ZL96214935.7); Utilize elements such as diode, electric capacity, resistance, voltage stabilizing didoe, PCT resistance; Realized ac contactor silent dead electricity extended release function; But have following weak point: 1, when contactor is not worked, source current can flow through its PCT resistance and voltage stabilizing didoe, has wasted electric energy; 2, PCT resistance is bigger, and on the extended release electric capacity parallel connection voltage stabilizing didoe, when causing the contactor operate as normal, its capacitance voltage is not enough; 3, the contactor coil two ends do not connect fly-wheel diode, and during the contactor adhesive, its impulse current can damage rectifier diode and electrochemical capacitor; 4, be provided with current limiting capacitance, high pressure adhesive electric capacity and low pressure time-delay and discharge electric capacity, its volume is big, and its high pressure adhesive electric capacity is not effect after the contactor adhesive basically; For guaranteeing that contactor has dead electricity time-delay release function, must make the low pressure time-delay discharge the electric capacity voltage and be higher than the minimum release voltage of contactor, wasted partly electric energy.
The utility model content
The main purpose of the utility model is: overcome the said apparatus deficiency, design a kind of more energy-conservation, extended release time of utility model long, volume is littler, A.C. contactor (electromagnet) the dead electricity extended release device of long service life.
For realizing the utility model purpose, the technical scheme that the utility model is taked is:
A kind of switching mode dead electricity extended release device includes capacitor C, diode D1, D2-D6 and 1 DC/DC DC converting module and constitutes; It is characterized in that: described diode D1-D4 constitutes rectifier bridge, start button QA be connected between the output and DC/DC DC converting module input of rectifier bridge after contactor JC normally open contact JC is parallelly connected; DC/DC DC converting module output constitutes a galvanic circle after diode D5, contactor coil JC, protection normally closed interlock RJ, stop button TA series connection; One end of DC/DC DC converting module input/output terminal be linked together, the other end through capacitor C, diode D5 be linked together; Between stop button TA and contactor coil JC, be connected to sustained diode 6.
Its effect and course of action are: connect AC power, become direct current behind the rectifier bridge that alternating current diode D1-D4 constitutes.As press start button QA, charge to capacitor C through stop button TA, protection contact RJ contactor coil JC on the one hand; Because of contactor coil is an inductance coil, its current step raises, and when the capacitor C voltage was raised to the supply voltage maximum, its electric current was maximum; Thereafter, current step descends, and makes sustained diode 6 conductings; On the other hand, DC/DC DC converting module gets electric, output DC stream; When the contactor coil JC electric current of flowing through during, supply power to contactor by the direct current module less than DC/DC DC converting module output current; Again on the one hand, along with the increase of contactor coil electric current, the contactor adhesive, the contactor normally open contact is closed, after this, unclamps start button QA, and A.C. contactor still can keep attracting state.When pressing stop button TA, the contactor coil dead electricity, contactor breaks off.Unclamp stop button TA, the electric weight by capacitor C stores still can make DC/DC DC converting module work a period of time, but because of DC/DC DC converting module output voltage much smaller than contactor JC attract current, contactor can adhesive yet.Along with the discharge of capacitor C, when being lower than DC/DC DC converting module, its voltage keeps output during minimum operating voltage, and DC/DC DC converting module quits work, and the contactor coil electric current of flowing through drops to 0.
After the contactor adhesive, like the power supply dead electricity, the voltage that capacitor C stores can make DC/DC DC converting module work on a period of time, reaches the purpose that the contactor time-delay discharges.Do not restore electricity as before breaking off at contactor, can continue to keep in touch the attracting state of device, avoided the production of continuous process units to interrupt.
In this circuit, the effect of diode D5 is to prevent that its high-voltage dc voltage is input to the output of DC/DC DC converting module by start button moment, damages the direct current module.
DC/DC DC converting module+Eo output and contactor (electromagnet) JC coil one end are connected with midget relay K through diode D7, and the normal opened contact of midget relay K has substituted contactor normally open contact JC.Like this, can omit the wiring that connects contactor normal opened contact JC on the one hand, simultaneously, also can be used for not being with in other electromagnet (electromagnetically operated valve) of contact.Because of all electromagnetically operated valves and other electromagnet apparatus, not during adhesive, longer because of the magnetic circuit air gap, the attract current that needs is bigger at electromagnet; And behind the electromagnetic actuation, reduce the magnetic circuit air gap, need keep adhesive the general not enough attract current of electric current 1/10.Therefore, also available device reduces the normal attract current of electromagnet, the purpose that time-delay discharges when reaching saves energy and dead electricity.
Only need select because of the output voltage of DC/DC DC converting module, need not to consider to postpone release voltage according to keeping the contactor adhesive, therefore, little, more energy-conservation than " energy-saving electrical network flashing retainer " required electric current.
Midget relay normally closed interlock K and resistance R series circuit in the described switching mode dead electricity extended release device, and the circuit after the series connection is parallelly connected with capacitor C.Can not before the adhesive, to contactor auxiliary attract current be provided at midget relay K like this, improve the reliability of contactor adhesive through its normally closed loop.When described resistance R can be the PTC element of band positive temperature coefficient, its electric current can gradually reduce along with the delay of time, cut-off capacity to reduce midget relay normally closed interlock K.
The voltage stabilizing control unit of described DC/DC DC converting inside modules is connected to delay capacitor C4, can make DC/DC DC converting module get electric initial stage output higher voltage at it, impels the contactor adhesive.
Description of drawings
Fig. 1 is the theory structure sketch map of the utility model embodiment one;
Fig. 2 is the theory structure sketch map of the utility model embodiment two;
Fig. 3 is the theory structure sketch map of the utility model embodiment three.
Embodiment
Embodiment one: like Fig. 1, include capacitor C, diode D1, D2-D6 and 1 DC/DC DC converting module.Direct current module wherein can keep the required voltage of adhesive according to contactor, buys standard module in market.
Embodiment two: as shown in Figure 2; Its basic comprising and course of action are suitable with embodiment one; Different is to be connected with midget relay K at DC/DC DC converting module+Eo output and contactor (electromagnet) JC coil one end through diode D7, and the normal opened contact of midget relay K has substituted contactor normally open contact JC.Like this, can omit the wiring that connects contactor normal opened contact JC, simultaneously, also can be used for not being with in other electromagnet (electromagnetically operated valve) of contact, realize its voiceless sound power-saving running, simultaneously, go back instead electro-magnet control switch (contactor).
Embodiment three: as shown in Figure 3; Its basic comprising is identical with embodiment two with course of action; Different just DC/DC DC converting modules be to adopt the discrete component assembling; And be connected to delay capacitor C4 at its voltage stabilizing control unit, can make DC/DC DC converting module get electric initial stage output higher voltage, impel contactor (electromagnetically operated valve) adhesive at it.
Claims (4)
1. switching mode dead electricity extended release device includes electric capacity (C), diode (D1, D2-D6) and 1 (DC/DC) DC converting module and constitutes; It is characterized in that: described diode (D1-D4) constitutes rectifier bridge, start button (QA) be connected on the output of rectifier bridge after contactor (JC) normally open contact (JC) is parallelly connected and (DC/DC) between the DC converting module input; (DC/DC) DC converting module output constitutes a galvanic circle after diode (D5), contactor coil (JC), protection normally closed interlock (RJ), stop button (TA) series connection; (DC/DC) end of DC converting module input/output terminal be linked together, the other end through electric capacity (C), diode (D5) be linked together; Between stop button (TA) and contactor coil (JC), be connected to fly-wheel diode (D6).
2. switching mode dead electricity extended release device according to claim 1; It is characterized in that: described (DC/DC) DC converting module (+Eo) output and contactor electromagnet coil (JC) end are connected with midget relay (K) through diode (D7), and the normal opened contact of midget relay K has substituted contactor normally open contact (JC).
3. switching mode dead electricity extended release device according to claim 2 is characterized in that: midget relay normally closed interlock (K) and resistance (R) series circuit, and the circuit after the series connection is parallelly connected with electric capacity (C); Described resistance (R) can be (PTC) element of band positive temperature coefficient.
4. switching mode dead electricity extended release device according to claim 1 is characterized in that: the voltage stabilizing control unit of described (DC/DC) DC converting inside modules is connected to delay capacitor (C4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200293456U CN202523641U (en) | 2012-01-11 | 2012-01-11 | Switch type electricity loss time-delayed release device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200293456U CN202523641U (en) | 2012-01-11 | 2012-01-11 | Switch type electricity loss time-delayed release device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202523641U true CN202523641U (en) | 2012-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200293456U Expired - Fee Related CN202523641U (en) | 2012-01-11 | 2012-01-11 | Switch type electricity loss time-delayed release device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202523641U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397698A (en) * | 2020-01-03 | 2020-07-10 | 骆金山 | Current type water level display and controller |
-
2012
- 2012-01-11 CN CN2012200293456U patent/CN202523641U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397698A (en) * | 2020-01-03 | 2020-07-10 | 骆金山 | Current type water level display and controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20140111 |