CN201112288Y - Multifunctional electricity-saving type relay - Google Patents
Multifunctional electricity-saving type relay Download PDFInfo
- Publication number
- CN201112288Y CN201112288Y CNU200720087509XU CN200720087509U CN201112288Y CN 201112288 Y CN201112288 Y CN 201112288Y CN U200720087509X U CNU200720087509X U CN U200720087509XU CN 200720087509 U CN200720087509 U CN 200720087509U CN 201112288 Y CN201112288 Y CN 201112288Y
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- solenoid
- power supply
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Abstract
The utility model relates to a multifunctional and electricity efficient relay which is applicable to the electric equipment field. The relay comprises an insulating shell, and the insulating shell is externally provided with a start-stop button, a function selective switch and a wiring column and internally provided with a main contact and an auxiliary contact which are connected with an electromagnetic iron with two magnetic poles through a link piece. The relay is characterized in that the electromagnetic iron comprises a fixed magnet which is provided with an electromagnetic coil and a movable magnet which is provided with a permanent magnet; a return spring is arranged between the fixed magnet and the movable magnet; the electromagnetic coil is connected with a forward DC power and an inverse DC power through the start-stop button; the relay is further provided with multifunctional tripping protection control circuits each of which is connected in series with each function selective switch and a control end of the multifunctional tripping protection control circuit is connected in series with the forward DC power which is connected with the electromagnetic coil. The multifunctional and electricity efficient relay has simple installation and connection and easy and flexible operation.
Description
Technical field
The utility model relates to a kind of multifunctional power saving type relay that is used for the electric equipment field, relates in particular to the multifunctional power saving type relay that is used for AC power.
Background technology
Relay has been widely used in the electric control gear of various electromechanical equipments as a kind of electric controling switch.Existing relay includes contactor, time-delay relay and various protection relay, and protection relay comprises under-voltage protection relay, overvoltage protection relay, overcurrent protection relay and earth leakage protective relay etc.Though kind is a lot, function ratio is more single, need dispose a plurality of relays according to the control system concrete condition when reality is used, and with a plurality of relay connections together.So not only line is many, and complex circuit, and the probability of the hidden danger that breaks down also increases is thereupon given and installed and use maintenance to bring inconvenience.In addition, existing relay mostly needs to keep by the energising of electromagnet coil the adhesive of electromagnet when closure state, the closure of ability latching relay normally open contact, and therefore, its work power consumption is higher.
Summary of the invention
Technical problem to be solved in the utility model is the deficiency that exists at above-mentioned prior art and the multiple relay function of a kind of collection is provided is one, and is easy to install and use, the multifunctional power saving type relay that consumes energy low.
The utility model is that the technical scheme that problem adopted of the above-mentioned proposition of solution is: include insulation shell; insulation shell is outside equipped with the start and stop button; functional select switch and binding post; be installed on main contact and auxiliary contact in the insulation shell; but main contact is connected with the electromagnet of adhesive by STATEMENT OF FEDERALLY SPONSORED with auxiliary contact; its difference is that described electromagnet includes fixed magnet and movable magnet; be installed on solenoid on the fixed magnet; install permanent magnet on the movable magnet; between fixed magnet and the movable magnet return spring is housed; described solenoid by the start and stop button respectively with just; oppositely DC power supply is joined; also be provided with multi-functional trigger protection control circuit simultaneously; each circuit of multi-functional trigger protection control circuit is connected in series mutually with each functional select switch respectively; the control end of multi-functional trigger protection control circuit is connected in series mutually with the forward dc power supply that connects solenoid, with the break-make of control solenoid and forward dc power supply.
Press such scheme, described multi-functional trigger protection control circuit comprises a plurality of function circuits for triggering and a protection control circuit, a plurality of function circuits for triggering comprise under-voltage circuits for triggering, overvoltage circuits for triggering, overcurrent circuits for triggering and electric leakage circuits for triggering, also the delay protection circuits for triggering can be set; A plurality of function circuits for triggering pass through or door links to each other with the protection control circuit; described protection control circuit is joined by triode and relay and forms; (breaking) contact of often opening of relay is connected in series mutually with a forward dc power supply, and the forward dc power supply is connected with solenoid.
Press such scheme, be provided with a dead electricity and touch jumping circuit, dead electricity is touched jumping circuit and forward dc power supply mutually and connect, and it is a charge-discharge circuit that described dead electricity is touched jumping circuit, powers to solenoid when being used to cut off the power supply, and makes the main contact tripping.
Press such scheme, described main contact is that three-phase is often opened main contact; Described auxiliary contact comprises that one often opens an auxiliary contact and a normally closed auxiliary contact, often opening auxiliary contact one end is connected with phase line, the other end is through stopping button and just connecing diode and solenoid joins, normally closed auxiliary contact one end is connected with phase line, and the other end joins through start button and reversal connection diode and solenoid.
Press such scheme, two-phase phase line circuit is provided with current sensor, and the induction output of current sensor and the signal input part of overcurrent circuits for triggering join; Be provided with electricity leakage sensor between phase line and zero line, the induction output of electricity leakage sensor links to each other with the signal input part of electric leakage circuits for triggering.
Press such scheme, dispose rectification circuit, rectification circuit comprises DC supply commutation voltage stabilizing circuit, sampling voltage rectification circuit and forward and reverse DC power supply circuit.Wherein the DC supply commutation voltage stabilizing circuit is as the working power of multi-functional trigger protection control circuit; Sampling voltage rectification circuit and under-voltage, overvoltage circuits for triggering input join; Forward and reverse DC power supply circuit links to each other with solenoid, the adhesive and the tripping of control electromagnet.
The beneficial effects of the utility model are:
1) the kinds of protect function is integrated and can selects one or more functions arbitrarily for use, so not only install connect simple, and use convenient flexibly.
2) install permanent magnet in the electromagnet, need not to continue the just automatic holding contact on-state of energy of energising after the adhesive, can save electric power; And the electric current that solenoid passes through after the adhesive is zero, and work can not generated heat when therefore long, can reduce the aging speed of coil, has improved the useful life of coil.
3) be provided with dead electricity touch jumping circuit can be when the circuit power down, guarantee that electromagnet keeping the tripping of safety smoothly under the attracting state, and provide additional power supply for protection system.
Description of drawings
Fig. 1 is the appearance structure stereogram of an embodiment of the utility model.
Fig. 2 is the circuit structure diagram of an embodiment of the utility model.
Embodiment
Further specify embodiment of the present utility model below in conjunction with accompanying drawing.
Include insulation shell 2, be provided with start button QA and stop button TA and external control binding post X1, X2, X3, X4 above insulation shell is outer, the both sides, top are provided with the main contact binding post, also are provided with functional select switch S1～S5 and set point adjustment knob 1 in a side of insulation shell; Be installed on main contact and auxiliary contact in the insulation shell, described main contact is that three-phase is often opened main contact KA, KB, KC; Described auxiliary contact comprises that one often opens an auxiliary contact KF and a normally closed auxiliary contact KH, often opening auxiliary contact one end is connected with phase line C, the other end is through stopping button TA and just meeting diode D10 and solenoid KM joins, normally closed auxiliary contact one end is connected with phase line C, and the other end joins through start button QA and reversal connection diode D9 and solenoid KM; But main contact is connected with the electromagnet of adhesive by STATEMENT OF FEDERALLY SPONSORED LG with auxiliary contact, described electromagnet includes fixed magnet GT and movable magnet DT, be installed on solenoid KM on the fixed magnet, install permanent magnet YC on the movable magnet, movable magnet is with the fixed magnet phase configuration and be connected STATEMENT OF FEDERALLY SPONSORED LG, and return spring TH is housed between fixed magnet and the movable magnet.Also being provided with multi-functional trigger protection control circuit and configuration in the insulation shell provides the rectification circuit of DC power supply, described multi-functional trigger protection control circuit comprises a plurality of function circuits for triggering and a protection control circuit, and a plurality of function circuits for triggering comprise under-voltage circuits for triggering, overvoltage circuits for triggering, overcurrent circuits for triggering, electric leakage circuits for triggering and delay protection circuits for triggering; Described under-voltage circuits for triggering are joined through functional select switch S2 and operational amplifier U1B by variable resistor RW2, the input of operational amplifier links to each other with sampling voltage, benchmark termination stabilized voltage power supply, output links to each other with the input of protection control circuit by diode D4; Described overvoltage circuits for triggering are joined through functional select switch S3 and operational amplifier U2A by variable resistor RW3, the input of operational amplifier links to each other with sampling voltage, benchmark termination stabilized voltage power supply, output links to each other with the input of protection control circuit by diode D5; Described overcurrent circuits for triggering are joined through functional select switch S4 and operational amplifier U2B by variable resistor RW4, the input of operational amplifier links to each other with the induction output N1 of current sensor LH, LH1, benchmark termination stabilized voltage power supply, output links to each other with the input of protection control circuit by diode D6; Described electric leakage circuits for triggering are joined through functional select switch S5 and operational amplifier U3A by variable resistor RW5, the input of operational amplifier links to each other with the induction output N2 of electricity leakage sensor LSH, benchmark termination stabilized voltage power supply, output links to each other with the input of protection control circuit by diode D7; Described delay protection circuits for triggering comprise charge-discharge circuit, charge-discharge circuit is joined by resistance R 2, variable resistor RW1, capacitor C 1 and functional select switch S1 and constitutes, charge-discharge circuit is connected with the operational amplifier input by resistance R 1, and the output of operational amplifier links to each other with the input of protection control circuit by diode D3; The output of above-mentioned each diode mutually and connect and constitute or door links to each other with the protection control circuit; described protection control circuit is joined by triode T and relay J and forms; (breaking) contact of often opening of relay is connected in series mutually with a forward dc power supply; the forward dc power supply is made of the half-wave rectifying circuit that resistance R 6 and diode D2 are formed, and the forward dc power supply is connected with solenoid with diode D8 through the normally open contact of relay J.Two-phase phase line B, C circuit are provided with current sensor LH, LH1, and the induction output N1 of current sensor and the signal input part of overcurrent circuits for triggering join; Be provided with electricity leakage sensor LHS between phase line A and zero line N, the induction output N2 of electricity leakage sensor links to each other with the signal input part of electric leakage circuits for triggering.The rectification circuit of above-mentioned DC power supply comprises DC supply commutation voltage stabilizing circuit, sampling voltage rectification circuit and forward and reverse DC power supply circuit.Wherein the DC supply commutation voltage stabilizing circuit connects resistance R 7, capacitor C 3 and voltage-stabiliser tube W1 by the forward dc power supply and constitutes as the working power of multi-functional trigger protection control circuit; The sampling voltage rectification circuit is joined by resistance R 5 and diode D1 and constitutes, and joins with under-voltage, overvoltage circuits for triggering input; The forward dc power circuit has two-way, one the tunnel links to each other with solenoid with diode D10 via often opening auxiliary contact KF, stop button TA, the half-wave rectifying circuit that another routing resistance R6 and diode D2 are formed constitutes, link to each other the tripping of control electromagnet with solenoid with diode D8 through the relay J contact.Oppositely DC power supply circuit is one the tunnel, links to each other with solenoid with reversal connection diode D9 via normally closed auxiliary contact KH, start button QA.Also be provided with external control binding post X1, X2, X3, X4 often opening auxiliary contact and normally closed auxiliary contact place, so that the external remote control of relay.Also be provided with a dead electricity in the circuit and touch jumping circuit, it is a charge-discharge circuit that described dead electricity is touched jumping circuit, and C2 forms by charging capacitor, and dead electricity is touched jumping circuit and forward dc power supply mutually and connect.Above-mentioned operational amplifier is provided by 3 integrated chips, and U1 provides U1A, U1B two operational amplifiers, and U2 provides U2A, U2B two operational amplifiers, and U3 provides U3A an operational amplifier; Above-mentioned variable resistor is continuous with corresponding set point adjustment knob 1 respectively.
The used direct current of electromagnetic actuation of the present invention is to be obtained by diode rectification, under often opening, normally closed auxiliary contact cooperate, utilize the positive and negative half-wave of alternating current to realize the direct current reverse conversion. the permanent magnet that the reaction force that converts magnetic force to and overcome spring by solenoid will be embedded on the armature is inhaled to fixed magnet, normally closed interlocking contact disconnects (often switching on) thereupon, cut off the coil power supply electric current, this moment, electric current was zero.After the main contact adhesive, keep the needed power of adhesive by the magnetic of permanent magnet.When needing main contact to disconnect, provide reverse current, just produce electrode and turn to solenoid, under the spring force mate-assist, just can realize main contact separation, reach the purpose of relay power auto switching.
Dead electricity touch jumping circuit by capacitance energy storage after the circuit dead electricity, guarantee that relay is kept at permanent magnet under the state of adhesive can throw off smoothly, and provide additional power supply for protection system.
The present invention utilizes electronic device that transmission process is protected control; functions such as under-voltage, overvoltage, overcurrent time-delay and earth leakage protective are brought together; adopt operational amplifier that the signal value of setting and the signal of the voltage sensor in the loaded line, current sensor and electricity leakage sensor are compared, amplify, the electrical equipment in the loaded line is protected control by OR circuit and protection control circuit.
The defencive function selector switch can make overcurrent protection, and functional select switches such as earth leakage protective and delay protection are opened separately or opened simultaneously.
Claims (7)
1. multifunctional power saving type relay; include insulation shell; insulation shell is outside equipped with the start and stop button; functional select switch and binding post; be installed on main contact and auxiliary contact in the insulation shell; but main contact is connected with the electromagnet of adhesive by STATEMENT OF FEDERALLY SPONSORED with auxiliary contact; it is characterized in that described electromagnet includes fixed magnet and movable magnet; be installed on solenoid on the fixed magnet; install permanent magnet on the movable magnet; between fixed magnet and the movable magnet return spring is housed; described solenoid by the start and stop button respectively with just; oppositely DC power supply is joined; also be provided with multi-functional trigger protection control circuit simultaneously; each circuit of multi-functional trigger protection control circuit is connected in series mutually with each functional select switch respectively; the control end of multi-functional trigger protection control circuit is connected in series mutually with the forward dc power supply that connects solenoid, with the break-make of control solenoid and forward dc power supply.
2. multifunctional power saving type relay according to claim 1, it is characterized in that described multi-functional trigger protection control circuit comprises a plurality of function circuits for triggering and a protection control circuit, a plurality of function circuits for triggering comprise under-voltage circuits for triggering, overvoltage circuits for triggering, overcurrent circuits for triggering and electric leakage circuits for triggering, also the delay protection circuits for triggering can be set; A plurality of function circuits for triggering pass through or door links to each other with the protection control circuit.
3. multifunctional power saving type relay according to claim 2; it is characterized in that described protection control circuit is joined by triode and relay forms; the normally open contact of relay is connected in series mutually with a forward dc power supply, and the forward dc power supply is connected with solenoid.
4. multifunctional power saving type relay according to claim 1 and 2, it is characterized in that being provided with a dead electricity and touch jumping circuit, dead electricity is touched jumping circuit and forward dc power supply mutually and connect, and it is a charge-discharge circuit that described dead electricity is touched jumping circuit, power to solenoid when being used to cut off the power supply, make the main contact tripping.
5. multifunctional power saving type relay according to claim 1 and 2 is characterized in that described main contact is that three-phase is often opened main contact; Described auxiliary contact comprises that one often opens an auxiliary contact and a normally closed auxiliary contact, often opening auxiliary contact one end is connected with phase line, the other end is through stopping button and just connecing diode and solenoid joins, normally closed auxiliary contact one end is connected with phase line, and the other end joins through start button and reversal connection diode and solenoid.
6. multifunctional power saving type relay according to claim 1 and 2 is characterized in that two-phase phase line circuit is provided with current sensor, and the induction output of current sensor and the signal input part of overcurrent circuits for triggering join; Be provided with electricity leakage sensor between phase line and zero line, the induction output of electricity leakage sensor links to each other with the signal input part of electric leakage circuits for triggering.
7. multifunctional power saving type relay according to claim 1 and 2, it is characterized in that disposing rectification circuit, rectification circuit comprises DC supply commutation voltage stabilizing circuit, sampling voltage rectification circuit and forward and reverse DC power supply circuit, and wherein the DC supply commutation voltage stabilizing circuit is as the working power of multi-functional trigger protection control circuit; Sampling voltage rectification circuit and under-voltage, overvoltage circuits for triggering input join; Forward and reverse DC power supply circuit links to each other with solenoid, the adhesive and the tripping of control electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720087509XU CN201112288Y (en) | 2007-10-11 | 2007-10-11 | Multifunctional electricity-saving type relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720087509XU CN201112288Y (en) | 2007-10-11 | 2007-10-11 | Multifunctional electricity-saving type relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201112288Y true CN201112288Y (en) | 2008-09-10 |
Family
ID=39964033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720087509XU Expired - Fee Related CN201112288Y (en) | 2007-10-11 | 2007-10-11 | Multifunctional electricity-saving type relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201112288Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538251A (en) * | 2014-12-31 | 2015-04-22 | 通能顺达科技国际有限公司 | Contactor driven by capacitive stored energy |
| 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 |
| CN112793437A (en) * | 2020-12-30 | 2021-05-14 | 重庆金康赛力斯新能源汽车设计院有限公司 | Direct-current charging contactor, ultrahigh-voltage electric vehicle and power battery charging method |
-
2007
- 2007-10-11 CN CNU200720087509XU patent/CN201112288Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538251A (en) * | 2014-12-31 | 2015-04-22 | 通能顺达科技国际有限公司 | Contactor driven by capacitive stored energy |
| CN104538251B (en) * | 2014-12-31 | 2017-10-03 | 通能顺达科技国际有限公司 | A kind of contactor of capacitance energy storage driving |
| 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 |
| CN112793437A (en) * | 2020-12-30 | 2021-05-14 | 重庆金康赛力斯新能源汽车设计院有限公司 | Direct-current charging contactor, ultrahigh-voltage electric vehicle and power battery charging method |
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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: 20080910 Termination date: 20121011 |