CN2768187Y - Controller of DC operation contactor - Google Patents
Controller of DC operation contactor Download PDFInfo
- Publication number
- CN2768187Y CN2768187Y CN 200420107331 CN200420107331U CN2768187Y CN 2768187 Y CN2768187 Y CN 2768187Y CN 200420107331 CN200420107331 CN 200420107331 CN 200420107331 U CN200420107331 U CN 200420107331U CN 2768187 Y CN2768187 Y CN 2768187Y
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- triode
- relay
- operation contactor
- diode
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Abstract
The utility model relates to a controller of a DC operation contactor, which comprises a casing provided with leading-out wire ends and an interior circuit in the casing, wherein the interior circuit comprises a power supply return circuit of a DC electromagnetic coil of the DC operation contactor and the power supply return circuit comprises a diode bridge type rectifier circuit. A normally open contact J1-1 of a relay J1 and leading-out wire ends 8, 1 are serially connected to the power supply return circuit, wherein the leading-out wire ends 8, 1 are connected with normally closed auxiliary contacts of the DC operation contactor. The power supply return circuit comprises a control circuit which is used for controlling the electrification and non-electrification of the relay J1, wherein the switching of the control circuit is controlled by DC control voltage Us. Each wire end which needs to be circumscribed is led out from the casing, and the power of the controller of the DC operation contactor is supplied by double power supplies, which fills the blank of the existing controllers at the aspect of the function. The controller can control the contactors of different rated voltage (single phase or three phase), and the controller uses the control mode of the double power supplies of the starting pickup and the maintaining pickup, which is favorable for realizing the intelligent gate closing. The utility model is suitable to be integrated with the contactor products.
Description
Technical field
The utility model relates to the control device of dc operation contactor (three-phase or single-phase), is specially the controller of dc operation contactor.
Background technology
The dc operation contactor is the new energy saving product of introducing to the market in recent years.Existing certain occupation rate on market.At present, the coil of dc operation contactor is directly powered by direct-current control voltage, and start and keep and be to use same d-c solenoid, abundant adhesive during for the starting of assurance dc operation contactor, its d-c solenoid volume is big, copper loss is many, cost is high, and the electric current when also causing the dc operation contactor to keep is big, power consumption is high.For reducing the volume of dc operation contactor d-c solenoid, reduce cost and the power consumption when moving, the dc operation contactor needs Configuration Control Unit.Existing controller all is single power supply, its complex structure, cost height.Do not see at present the controller product and the relevant bibliographical information of dual power supply.Existing in addition controller only is applicable to a kind of rated voltage, and what promptly have is applicable to 220 volts, and what have is applicable to 380 volts, and a kind of controller can not be common to various rated voltages.
Summary of the invention
The controller that the utility model solves existing dc operation contactor all is with single power supply, does not have the problem of the controller of dual power supply, and a kind of controller of dc operation contactor is provided.This controller is used to satisfy the contactor starting adhesive power consumption needs different with keeping adhesive and is realized the intelligent switch-on function by dual power supply.
The utility model is to adopt following technical scheme to realize: the controller of dc operation contactor, comprise and have the housing and the interior internal circuit of housing of drawing line end, internal circuit comprises the current supply circuit of the dc operation contactor d-c solenoid that contains diode bridge rectifier circuit, the normally opened contact J1-1 that is serially connected with relay J 1 in this current supply circuit be used for linking to each other with the normally closed auxiliary contact of dc operation contactor draw line end 8,1; Comprise one by direct-current control voltage U
SThe control switching be used for that control relay J1 is charged, the control circuit of dead electricity; The line end that links to each other with the d-c solenoid of dc operation contactor in the internal circuit, the line end that links to each other with dc operation contactor normally closed auxiliary contact, with direct-current control voltage U
SThe input of the line end that links to each other, the line end that links to each other with power supply, rectification circuit is drawn from housing; Two of direct-current control voltage is drawn line end and is linked to each other with the two ends of the series arm of the normally opened contact J1-1 that draws line end and relay J 1 of contactor d-c solenoid through diode D5, D9 respectively.The utility model is as the control device of dc operation contactor, during use, the line end of respectively drawing on its housing links to each other with solenoid two ends, normally closed auxiliary contact two ends, direct-current control voltage two ends, power supply (three-phase or the single-phase) two ends of dc operation contactor accordingly; As direct-current control voltage U
SWhen being higher than a certain value, the control circuit conducting of relay J 1 makes relay J 1 charged, make the normally opened contact J1-1 closure of relay J 1, connect the current supply circuit of contactor d-c solenoid, at dc operation contactor starting attracting process, because its normally closed auxiliary contact still is in closure state, the d-c solenoid of dc operation contactor by electric network source by rectification integration circuit and direct-current control voltage U
SPower supply simultaneously, thereby the charged probe of contactor closure that makes of dc operation contactor coil.After the contact closure, its normally closed auxiliary contact disconnects, by direct-current control voltage U
SProvide to the d-c solenoid of dc operation contactor and to keep electric current, start big electric current to satisfy the dc operation contactor, keep the energy-conservation purpose of little electric current; As direct-current control voltage U
SWhen being lower than a certain value, the control circuit of relay J 1 disconnects and makes relay J 1 dead electricity, and the normally opened contact J1-1 of relay J 1 is disconnected, thereby disconnect the current supply circuit of dc operation contactor d-c solenoid, dc operation contactor dead electricity, contact disconnects, and stops to power to the load.
From the above-mentioned course of work as can be seen, the control circuit of relay J 1 is exactly at direct-current control voltage U
SControl under finish that relay is charged, the conversion of dead electricity, promptly as direct-current control voltage U
SWhen being higher than a certain value, make relay J 1 charged; When being lower than a certain value, make relay electric-loss.Concerning the those of ordinary skill in electricity automatic control field, the control circuit with relay J 1 of above-mentioned functions need not creative work and just can realize easily, and can easily design multiple different circuit structure; The easiest realization, also be that the easiest what expect is to be the control circuit that the basic element of character makes up relay J 1 with the triode.Certainly also available controllable silicon, existing various functional chips, functional module realize.Therefore, the utility model is not described specifically the control circuit of relay J 1 in claim 1, but provided a kind of physical circuit schematic diagram of the control circuit of relay J 1 in the accompanying drawings, and in embodiment, made specific descriptions, with the exploitativeness of showing that the utility model is the most basic.
In the control circuit of relay J 1, be provided with K switch 1.When K switch 1 is in off-state, make the control circuit of whole relay J 1 be in off state, promptly the control circuit of relay J 1 just is not subjected to direct-current control voltage U
SControl, thereby make entire controller also not be subjected to direct-current control voltage U
SControl.Like this, increased artificial control to the dc operation contactor.When not wanting to allow the dc operation contactor with direct-current control voltage U
SAnd when action can disconnect K switch 1.
Input side at diode bridge rectifier circuit is serially connected with resistance R 1-R3 (can be connected in series more resistance as required), and the end points of the electric current inflow side of each resistance is drawn from housing.High-voltage power supply is drawn the line end introducing from the end points of the resistance that electric current is flowed through at first, make electric current through all series resistors, play step-down, metering function, LVPS is drawn line end from the end points of subsequently resistance and is introduced, the resistance of process is few, makes less step-down, current limliting.By at the input side series resistor of diode bridge rectifier circuit and draw line end, make controller described in the utility model applicable to the dc operation contactor of different rated voltages, make its applicability, versatility with broad.
The controller of dc operation contactor described in the utility model is a dual power supply, has replenished the blank of existing controller in this function aspects.Use this controller that the d-c solenoid volume of dc operation contactor is reduced, reduce power consumption and cost.The contactor (single-phase or three-phase) of the different rated voltages of this controller may command is 110 volts, 220 volts, 380 volts, 660 volts a dc operation contactor applicable to rated voltage, and the scope of application is wide.This controller has the function that big electric current starts, little electric current is kept, power and energy saving.This controller adopts the starting adhesive and keeps the duplicate supply control mode of adhesive, helps realizing intelligent switch-on.Its circuit structure design is reasonable, simple, and cost is low, and volume is little, is applicable to the contactor product to be integrated in one, and is convenient to promote the use of on a large scale.
Description of drawings
Fig. 1 is a surface structure schematic diagram of the present utility model;
Fig. 2 is a kind of physical circuit schematic diagram of internal circuit;
When using for this controller, Fig. 3 draws the line end connection diagram;
Embodiment
The controller of dc operation contactor, comprise and have the housing 1 and the interior internal circuit of housing of drawing line end, internal circuit comprises the current supply circuit of the dc operation contactor d-c solenoid that contains diode bridge rectifier circuit, the normally opened contact J1-1 that is serially connected with relay J 1 in this current supply circuit be used for linking to each other with the normally closed auxiliary contact of dc operation contactor draw line end 8,1; Comprise one by direct-current control voltage U
SThe control switching be used for that control relay J1 is charged, the control circuit of dead electricity; The line end 1,4 that links to each other with the d-c solenoid of dc operation contactor in the internal circuit, the line end 8,1 that links to each other with dc operation contactor normally closed auxiliary contact, with direct-current control voltage U
SThe input 6 of the line end 9,11 that links to each other, the line end 3,7 that links to each other with AC power, rectification circuit is drawn from housing; Two of direct-current control voltage is drawn line end 9,11 and is linked to each other with the two ends of the series arm of the normally opened contact J1-1 that draws line end and relay J 1 of dc operation contactor d-c solenoid through diode D5, D9 respectively.
Interchange input side at diode bridge rectifier circuit is serially connected with resistance R 1-R3, and the end points of the electric current inflow side of each resistance 3,2,5 is drawn from housing.
The control circuit of relay J 1 can adopt following circuit structure: the control circuit of relay J 1 comprise the relay J 1 that contains triode BG1, BG4, diode D7 main current supply circuit, contain the triode BG4 switching control circuit that the auxiliary power supply loop of the relay J 1 of triode BG5 links to each other with base stage with triode BG4; In the main current supply circuit of relay J 1, the collector electrode of triode BG1 and direct-current control voltage U
SPositive outside wire end 9 link to each other, emitter links to each other with the collector electrode of triode BG4 through the coil of diode D7, relay J 1, the emitter of triode BG4 links to each other with the anode of diode D9, and the base stage of triode BG1 links to each other with the anode of diode D9 through voltage stabilizing didoe DW1; In the auxiliary power supply loop of relay J 1, the collector electrode of triode BG5 and direct-current control voltage U
SPositive outside wire end 9 link to each other, emitter links to each other with the positive pole of relay J 1 coil through diode D8, triode BG5 has by resistance R 4, the base loop that diode D6 and relay normally open contact J1-1 are in series, the base stage of triode BG5 and resistance R 4, the intermediate node of diode D6 (but another normally opened contact in the relay normally open contact relay J 1 in the base loop that links to each other, also can sharedly be serially connected with the normally opened contact in the dc operation contactor d-c solenoid current supply circuit, but after like this normally opened contact in the dc operation contactor d-c solenoid current supply circuit need be serially connected in d-c solenoid); Triode BG4 switching control circuit comprises triode BG3, and the emitter of triode BG3, base stage are respectively by resistance R 8, voltage stabilizing didoe DW2 and direct-current control voltage U
SThe anode of positive outside wire end 9, diode D9 link to each other, the collector electrode of triode BG3 links to each other with the base stage of triode BG2, the collector electrode of triode BG2 through resistance R 6 link to each other with the emitter of triode BG1, emitter is through light-emitting diode and the direct-current control voltage U of photoelectrical coupler IC1
SNegative outside wire end 11 link to each other, the formation of connecting with resistance R 5, R9 of the optocoupler triode among the photoelectrical coupler IC1 is connected in series arm between the anode of the emitter of triode BG1 and diode D9, the base stage of triode BG4 links to each other with the front end of resistance R 9.
Triode BG1 plays pressure stabilization function, and diode D9, D6, D5, D7 play the duplicate supply buffer action.
Triode BG2 emitter and direct-current control voltage U
SNegative outside wire end 11 between branch road on be connected with K switch 1.K switch 1 can directly be fixed on the housing, also the two ends 10,11 of K switch 1 can be drawn from housing, to realize the far-end control of K switch 1.
When controller uses, draw line end 1,4 and link to each other with the d-c solenoid two ends of dc operation contactor.Direct-current control voltage U
SWith draw line end 9,11 and link to each other.Drawing line end 8,1 links to each other with the normally closed auxiliary contact of dc operation contactor.During 660 volts of rated power supplies, introduce from drawing line end 3,7; During 380 volts of rated power supplies, introduce from drawing line end 2,7; When rated power supply is 220 volts, introduce from drawing line end 5,7.When the electrical network rated voltage was lower than required starting voltage, that draws line end 6 external special settings equaled (1.2-2.0) U
SThe anode of starting voltage.
The course of work is following (with 380 volts of ac rated voltages, controls voltage U
S24VDC is an example): the K1 that closes a switch, line end 10,11 is connected.Because emitter-base stage of triode BG3 has base current to pass through, the light-emitting diode of triode BG3 conducting → triode BG2 conducting → photoelectrical coupler IC1 has electric current to pass through → optocoupler triode conducting → triode BG4 conducting, the control voltage U
SForm the loop by triode BG1, diode D7, relay J 1 coil, triode BG4, then have 12V voltage to be added in relay J 1 coil two ends, meanwhile and since triode BG5 relay J 1 not adhesive be in conducting state in the past, so U
SThe positive voltage of 24VDC is added in relay J 1 coil two ends by triode BG5, diode D8 and triode BG4, guarantees the reliable adhesive of relay.After the normally opened contact adhesive of relay, the base potential of triode BG5 is clamped at about 0.7 volt, so triode BG5 ends, relay J 1 is kept attracting state by 12 volts of voltages.Relay J 1 coil is charged, normally opened contact J1-1 closure, the current supply circuit conducting of dc operation contactor d-c solenoid, and d-c solenoid is charged, makes the adhesive of dc operation probe of contactor, powers to the load.After the adhesive of dc operation contactor, because its normally closed auxiliary contact disconnects, the starting voltage and the electric current that are provided by electric network source are cut off, and at this moment control voltage U
SNormally opened contact J1-1 by diode D5 and relay is added in dc operation contactor d-c solenoid two ends, keeps pick-up voltage for the d-c solenoid of dc operation contactor provides.Keep pick-up voltage and the electric current of this moment are far smaller than starting pick-up voltage and electric current.
When the control voltage U
SDuring less than 12 volts, triode BG3, BG2 end, and finally make relay J 1 dead electricity, and its normally opened contact disconnects.The current supply circuit of dc operation contactor d-c solenoid is disconnected, the d-c solenoid dead electricity, the contact of dc operation contactor disconnects, and cuts off the power supply of load.
When K switch 1 is pulled out to open position, disconnect between the line end 10,11, controller is quit work.
Claims (6)
1, a kind of controller of dc operation contactor, comprise and have the housing (1) and the interior internal circuit of housing of drawing line end, it is characterized by: internal circuit comprises the current supply circuit of the dc operation contactor d-c solenoid that contains diode bridge rectifier circuit, the normally opened contact J1-1 that is serially connected with relay J 1 in this current supply circuit be used for linking to each other with the normally closed auxiliary contact of dc operation contactor draw line end (8,1); Comprise one by direct-current control voltage U
SThe control switching be used for that control relay J1 is charged, the control circuit of dead electricity; The line end that links to each other with the d-c solenoid of dc operation contactor in the internal circuit (1,4), the line end (8,1) that links to each other with dc operation contactor normally closed auxiliary contact, with direct-current control voltage U
SThe line end (9,11) that links to each other, the line end (3,7) that links to each other with power supply, the input (6) of rectification circuit are drawn from housing; Two of direct-current control voltage is drawn line end (9,11) and is linked to each other with the two ends of the series arm of the normally opened contact J1-1 that draws line end and relay J 1 of dc operation contactor d-c solenoid through diode D5, D9 respectively.
2, the controller of dc operation contactor as claimed in claim 1 is characterized by: the input side at diode bridge rectifier circuit is serially connected with resistance R 1-R3, and the end points of the electric current inflow side of each resistance (3,2,5) is drawn from housing.
3, the controller of dc operation contactor as claimed in claim 1 or 2 is characterized by: be provided with K switch 1 in the control circuit of relay J 1.
4, the controller of dc operation contactor as claimed in claim 1 or 2 is characterized by: the control circuit of relay J 1 comprise the relay J 1 that contains triode BG1, BG4, diode D7 main current supply circuit, contain the triode BG4 switching control circuit that the auxiliary power supply loop of the relay J 1 of triode BG5 links to each other with base stage with triode BG4; In the main current supply circuit of relay J 1, the collector electrode of triode BG1 and direct-current control voltage U
SPositive outside wire end (9) link to each other, emitter links to each other with the collector electrode of triode BG4 through the coil of diode D7, relay J 1, the emitter of triode BG4 links to each other with the anode of diode D9, and the base stage of triode BG1 links to each other with the anode of diode D9 through voltage stabilizing didoe DW1; In the auxiliary power supply loop of relay J 1, the collector electrode of triode BG5 and direct-current control voltage U
SPositive outside wire end (9) link to each other, emitter links to each other with the positive pole of relay J 1 coil through diode D8, triode BG5 has the base loop that is in series by resistance R 4, diode D6 and relay normally open contact J1-1, and the base stage of triode BG5 links to each other with the intermediate node of resistance R 4, diode D6; Triode BG4 switching control circuit comprises triode BG3, and the emitter of triode BG3, base stage are respectively by resistance R 8, voltage stabilizing didoe DW2 and direct-current control voltage U
SThe anode of positive outside wire end (9), diode D9 link to each other, the collector electrode of triode BG3 links to each other with the base stage of triode BG2, the collector electrode of triode BG2 through resistance R 6 link to each other with the emitter of triode BG1, emitter is through light-emitting diode and the direct-current control voltage U of photoelectrical coupler IC1
SNegative outside wire end (11) link to each other, the formation of connecting with resistance R 5, R9 of the optocoupler triode among the photoelectrical coupler IC1 is connected in series arm between the anode of the emitter of triode BG1 and diode D9, the base stage of triode BG4 links to each other with the front end of resistance R 9.
5, the controller of dc operation contactor as claimed in claim 4 is characterized by: triode BG2 emitter and direct-current control voltage U
SNegative outside wire end (11) between branch road on be connected with K switch 1.
6, the controller of dc operation contactor as claimed in claim 5 is characterized by: the two ends (10,11) of K switch 1 are drawn from housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420107331 CN2768187Y (en) | 2004-11-17 | 2004-11-17 | Controller of DC operation contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420107331 CN2768187Y (en) | 2004-11-17 | 2004-11-17 | Controller of DC operation contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2768187Y true CN2768187Y (en) | 2006-03-29 |
Family
ID=36682056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420107331 Expired - Fee Related CN2768187Y (en) | 2004-11-17 | 2004-11-17 | Controller of DC operation contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2768187Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950709A (en) * | 2010-09-17 | 2011-01-19 | 上海诺雅克电气有限公司 | Low-voltage holding contactor |
| CN108448725A (en) * | 2018-04-12 | 2018-08-24 | 哈工大机器人（合肥）国际创新研究院 | A kind of power control circuit and control method |
-
2004
- 2004-11-17 CN CN 200420107331 patent/CN2768187Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950709A (en) * | 2010-09-17 | 2011-01-19 | 上海诺雅克电气有限公司 | Low-voltage holding contactor |
| CN101950709B (en) * | 2010-09-17 | 2013-05-01 | 上海诺雅克电气有限公司 | Low-voltage holding contactor |
| CN108448725A (en) * | 2018-04-12 | 2018-08-24 | 哈工大机器人（合肥）国际创新研究院 | A kind of power control circuit and control method |
| CN108448725B (en) * | 2018-04-12 | 2023-06-27 | 合肥哈工特安智能科技有限公司 | Power supply control circuit and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |