CN104485257A - Control circuit for double coiled relay - Google Patents
Control circuit for double coiled relay Download PDFInfo
- Publication number
- CN104485257A CN104485257A CN201410756648.1A CN201410756648A CN104485257A CN 104485257 A CN104485257 A CN 104485257A CN 201410756648 A CN201410756648 A CN 201410756648A CN 104485257 A CN104485257 A CN 104485257A
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- CN
- China
- Prior art keywords
- switching tube
- control circuit
- relay
- coil
- winding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
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- Relay Circuits (AREA)
Abstract
The invention provides a control circuit for a double coiled relay, comprising a starting coil K1, a holding coil K2, output contacts K, a capacitor C, a resistor R and a switching tube M1, wherein the output contacts K are controlled by the starting coil K1 and the holding coil K2; one end of the starting coil K1 is connected with the positive electrode of an input end; the other end of the starting coil K1 is connected with the drain electrode of the switching tube M1; the grid electrode of the switching tube M1 is connected with the positive electrode of the input end through the capacitor C; the grid electrode of the switching tube M1 is further connected with the negative electrode of the input end through the resistor R; the source electrode of the switching tube M1 is connected with the negative electrode of the input end. According to the control circuit for the double coiled relay, the mechanical switching of the relay is converted into the switching between the starting coil and the holding coil by utilization of the control circuit composed of electronic components, so that the influence caused by environmental stress is difficultly caused, and the switching reliability is greatly improved; meanwhile, an auxiliary contact is canceled, so that the overall service life of the relay cannot be influenced by the auxiliary contact.
Description
Technical field
The present invention relates to relay technical field, be specifically related to a kind of control circuit of double-wound relay.
Background technology
Because high-power magnetic relay coil when continuous firing can produce very large heat, affect the reliability of relay work, energy consumption is also comparatively large simultaneously, so people devise a kind of mechanical system that utilizes solve this problem to the power relay realizing the maintenance of twin coil startup unicoil.As shown in Figure 2, the output contact K of relay is by actuating coil K2 and hold-in winding K1 co-controlling, and wherein the ampere-turn value of actuating coil K2 is comparatively large, and action is fast, and the ampere-turn value of hold-in winding K1 is less, slow motion for fundamental diagram; Auxiliary contact K1-1 controls by hold-in winding K1, and during the input of relay no-voltage, auxiliary contact K1-1 is in closure state; Actuating coil K2 connects with auxiliary contact K1-1.After relay input powers up, due to the effect of actuating coil K2, the output contact K of relay connects rapidly, due to the effect of hold-in winding K1 after several milliseconds, auxiliary contact K1-1 is disconnected, actuating coil K2 power-off, quit work, and the output contact K state of relay is maintained by maintainer coil K1.This relay mainly realizes the switching between actuating coil and maintainer coil mechanically, there is the shortcoming that it is fatal, when being subject to environmental stress impact, the reliability of auxiliary contact K1-1 reduces greatly, simultaneously because auxiliary contact K1-1 is mechanical contact, useful life is limited, can affect the bulk life time of relay very in large extent.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of control circuit of double-wound relay, the unicoil that the control circuit of this double-wound relay realizes relay by the control circuit utilizing electronic devices and components to form starts, twin coil keeps function, solve and utilize auxiliary contact to be easily subject to environmental stress impact, the problems such as reliability is low.
The present invention is achieved by the following technical programs.
The control circuit of a kind of double-wound relay provided by the invention, comprises actuating coil K1, hold-in winding K2, output contact K, electric capacity C, resistance R and switching tube M1; Described output contact K controls by actuating coil K1 and hold-in winding K2, and one end of described actuating coil K1 is connected with input anode, and the other end is connected with the drain electrode of switching tube M1; The grid of described switching tube M1 is connected with input anode through electric capacity C, and the grid of described switching tube M1 is also connected with input cathode through resistance R, and the source class of described switching tube M1 is connected with input cathode; One end of described hold-in winding K2 is connected with input anode, and the other end is connected with input cathode.
The ampere-turn value of described actuating coil K1 is greater than the ampere-turn value of hold-in winding K2.
The two ends of described actuating coil K1 are parallel with diode D1.
The two ends of described hold-in winding K2 are parallel with diode D2.
Described switching tube M1 is N channel enhancement field effect transistor.
Beneficial effect of the present invention is: the control circuit becoming electronic devices and components to form the mechanical system switch transition of relay is to realize the switching between actuating coil and maintainer coil, be not easy to be subject to environmental stress impact, substantially increase the reliability of switching, simultaneously owing to eliminating auxiliary contact, the whole service life of relay can not be subject to the impact of auxiliary contact again.
Accompanying drawing explanation
Fig. 1 is control circuit figure of the present invention;
Fig. 2 is the control circuit figure of traditional control method.
Embodiment
Further describe technical scheme of the present invention below, but described in claimed scope is not limited to.
The control circuit of a kind of double-wound relay as shown in Figure 1, comprises actuating coil K1, hold-in winding K2, output contact K, electric capacity C, resistance R and switching tube M1; Described output contact K controls by actuating coil K1 and hold-in winding K2, and one end of described actuating coil K1 is connected with input anode, and the other end is connected with the drain electrode of switching tube M1; The grid of described switching tube M1 is connected with input anode through electric capacity C, and the grid of described switching tube M1 is also connected with input cathode through resistance R, and the source class of described switching tube M1 is connected with input cathode; One end of described hold-in winding K2 is connected with input anode, and the other end is connected with input cathode.The ampere-turn value of described actuating coil K1 is greater than the ampere-turn value of hold-in winding K2.
The two ends of described actuating coil K1 are parallel with diode D1, and the two ends of described hold-in winding K2 are parallel with diode D2; The inverse electromotive force that produces when being used for suppressing coil blackout.
Described switching tube M1 is N channel enhancement field effect transistor.
The present invention is in practical work process, and electric capacity C and resistance R form resistance-capacitance circuit, is used for the grid of control switch pipe.After product powers up, electric capacity C starts charging, due to the existence of resistance R, in electric capacity C charging process, the gate voltage values of switching tube M1 reduces gradually, and before this voltage is decreased to its threshold voltage, source electrode and the drain electrode of switching tube M1 are in conducting state, power supply forms loop by actuating coil and switching tube M1, and actuating coil 1 is in running order; Power supply forms an other loop by hold-in winding K2 simultaneously, and hold-in winding K2 works, and under the acting in conjunction of two coils, the output contact K of product connects rapidly.Along with electric capacity C constantly charges, the voltage of switching tube M1 grid reduces gradually, after this magnitude of voltage is lower than its threshold voltage, drain electrode and the source electrode of switching tube M1 become off-state from conducting state, now the loop at actuating coil K1 place disconnects, actuating coil K1 quits work, and the output contact K of product still keeps on-state under the effect of hold-in winding K2.
Claims (5)
1. the control circuit of a double-wound relay, comprise actuating coil K1, hold-in winding K2, output contact K, electric capacity C, resistance R and switching tube M1, it is characterized in that: described output contact K controls by actuating coil K1 and hold-in winding K2, one end of described actuating coil K1 is connected with input anode, and the other end is connected with the drain electrode of switching tube M1; The grid of described switching tube M1 is connected with input anode through electric capacity C, and the grid of described switching tube M1 is also connected with input cathode through resistance R, and the source class of described switching tube M1 is connected with input cathode; One end of described hold-in winding K2 is connected with input anode, and the other end is connected with input cathode.
2. the control circuit of double-wound relay as claimed in claim 1, is characterized in that: the ampere-turn value of described actuating coil K1 is greater than the ampere-turn value of hold-in winding K2.
3. the control circuit of double-wound relay as claimed in claim 1, is characterized in that: the two ends of described actuating coil K1 are parallel with diode D1.
4. the control circuit of double-wound relay as claimed in claim 1, is characterized in that: the two ends of described hold-in winding K2 are parallel with diode D2.
5. the control circuit of double-wound relay as claimed in claim 1, is characterized in that: described switching tube M1 is N channel enhancement field effect transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410756648.1A CN104485257A (en) | 2014-12-10 | 2014-12-10 | Control circuit for double coiled relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410756648.1A CN104485257A (en) | 2014-12-10 | 2014-12-10 | Control circuit for double coiled relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104485257A true CN104485257A (en) | 2015-04-01 |
Family
ID=52759794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410756648.1A Pending CN104485257A (en) | 2014-12-10 | 2014-12-10 | Control circuit for double coiled relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104485257A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109427509A (en) * | 2017-09-04 | 2019-03-05 | 比亚迪股份有限公司 | Relay |
| CN110335784A (en) * | 2019-07-22 | 2019-10-15 | 三友联众集团股份有限公司 | A kind of twin coil Multi-contact electromagnetic relay |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5737161A (en) * | 1996-11-25 | 1998-04-07 | Raychem Corporation | Overcurrent protection device and arrangement |
| CN101159201A (en) * | 2007-09-12 | 2008-04-09 | 长春理工大学 | Twin coil energy saving contactor |
| CN201918318U (en) * | 2011-01-24 | 2011-08-03 | 李喜通 | Relay electricity-saving controller capable of expanding load capacity |
| CN104021986A (en) * | 2014-05-27 | 2014-09-03 | 国网新疆伊犁供电有限责任公司 | Energy-saving double-coil magnetic latching relay device with differential driving circuit |
| CN203931943U (en) * | 2014-05-16 | 2014-11-05 | 重庆伟略智能系统集成技术有限公司 | A kind of circuit that reduces relay coil power consumption |
-
2014
- 2014-12-10 CN CN201410756648.1A patent/CN104485257A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5737161A (en) * | 1996-11-25 | 1998-04-07 | Raychem Corporation | Overcurrent protection device and arrangement |
| CN101159201A (en) * | 2007-09-12 | 2008-04-09 | 长春理工大学 | Twin coil energy saving contactor |
| CN201918318U (en) * | 2011-01-24 | 2011-08-03 | 李喜通 | Relay electricity-saving controller capable of expanding load capacity |
| CN203931943U (en) * | 2014-05-16 | 2014-11-05 | 重庆伟略智能系统集成技术有限公司 | A kind of circuit that reduces relay coil power consumption |
| CN104021986A (en) * | 2014-05-27 | 2014-09-03 | 国网新疆伊犁供电有限责任公司 | Energy-saving double-coil magnetic latching relay device with differential driving circuit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109427509A (en) * | 2017-09-04 | 2019-03-05 | 比亚迪股份有限公司 | Relay |
| CN109427509B (en) * | 2017-09-04 | 2020-08-25 | 比亚迪股份有限公司 | Relay with a movable contact |
| CN110335784A (en) * | 2019-07-22 | 2019-10-15 | 三友联众集团股份有限公司 | A kind of twin coil Multi-contact electromagnetic relay |
| CN110335784B (en) * | 2019-07-22 | 2024-03-19 | 三友联众集团股份有限公司 | Double-coil multi-contact electromagnetic relay |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150401 |
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| RJ01 | Rejection of invention patent application after publication |