CN202363371U - Alternating-current high-voltage bistable permanent magnet contactor - Google Patents
Alternating-current high-voltage bistable permanent magnet contactor Download PDFInfo
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- CN202363371U CN202363371U CN2011205075434U CN201120507543U CN202363371U CN 202363371 U CN202363371 U CN 202363371U CN 2011205075434 U CN2011205075434 U CN 2011205075434U CN 201120507543 U CN201120507543 U CN 201120507543U CN 202363371 U CN202363371 U CN 202363371U
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Abstract
The utility model relates to an alternating-current high-voltage bistable permanent magnet contactor, which comprises a contactor body and a contactor circuit, wherein the contactor body comprises a bistable permanent magnet driving mechanism used for driving switch-on and switch-off, and the contactor circuit comprises an intelligent controller used for controlling the motion of the permanent magnet driving mechanism. The intelligent controller comprises a control input circuit, a main function circuit and an output circuit, wherein the control input circuit is used for transferring a manual or remote-control switch-on and switch-off control signal; the main function circuit is used for receiving the control signal from the control input circuit and outputting a switch-on and switch-off operational order after logical judgment; and the output circuit can carry out corresponding output to control the contactor body according to the switch-on and switch-off operational order output by the main function circuit. The alternating-current high-voltage bistable permanent magnet contactor can realize frequent switch-on and switch-off operation and has the advantages of low energy consumption, high reliability, long mechanical life and self-holding function. The alternating-current high-voltage bistable permanent magnet contactor is widely applied on occasions needing frequently start and control alternating-current motors, transformers and capacitors.
Description
Technical field
The utility model relates to a kind of A.C. contactor; Be specifically related to a kind of ac high-voltage bistable permanent magnetic contactor; Be mainly used in a large amount of deciliters, frequent operation occasion, for example be used for connection and disjunction and frequent starting and control alternating current motor, transformer and capacitor group etc.
Background technology
The ac high-voltage contactor is widely used as cut-offfing of electric power and control circuit; Play frequent on-off action; On electrotechnics;,, also can be used as electrical loads such as control Gong Chang She Bei ﹑ Dian Re Qi ﹑ machine-tool and various kinds electric power unit so often apply to that motor, transformer and capacitor group etc. need to divide in a large number, the occasion of closing operation circulation because but fast shut-off exchanges and direct current major loop and the device that can connect continually with big current control circuit; Can be made into fixed or withdraw-type, be fit to be installed in set type transformer station and the switch cubicle.
Ac high-voltage contactor control capacity is big, and circuit be can not only connect and cut off, and frequent operation and far distance controlled are applicable to, be one of critical elements in electric power system and the automatic control system, extremely important status is arranged.
Traditional ac high-voltage contactor adopts pneumatic type or electromagnetic type operating mechanism more, and these operating mechanism parts are many, requirement on machining accuracy is high, cooperate difficulty big, easy to wear, thereby reliability is low; Do not reach permanent mechanical endurance and electrical endurance, the frequent appearance divides, closes fault in running, is not only the major hidden danger of safety in production; Also brought great inconvenience to maintenance; And have problems such as big energy-consuming, contact bounce be big, in addition, the electromagnetic mechanism maintenance of need switching in the on/off switch position; The power supply dead electricity can cause the mechanism can not self-sustaining, has influenced the reliability of contactor.Aspect control, traditional contactor need be opened into a deciliter positional information, then could driving operations mechanism, and wrong if positional information can not be imported or import, can cause contactor malfunction or tripping, this also influences the reliability of control section.
Therefore, continue to use the advantage that traditional operating mechanism is difficult to embody contactor high life, high reliability, high reliability, long-life, the intelligentized contactor of control are badly in need of in electric power system at present.
The utility model content
In order to overcome the above-mentioned defective of prior art, the utility model provides a kind of ac high-voltage bistable permanent magnetic contactor, and this contactor can be realized frequent branch, closing operation, and energy consumption is low, and reliability is high, and mechanical endurance is long, and has self-retaining function.
To achieve these goals, the technical scheme that provides of the utility model is:
A kind of ac high-voltage bistable permanent magnetic contactor; Comprise two parts of contactor body and contactor circuit; Said contactor body comprise be used to drive close, the bistable permanent magnetic driving mechanism of separating brake, said contactor circuit comprises the intelligent controller that is used to control said permanent mechanism driving mechanism action.
Said permanent mechanism driving mechanism comprise fixing hollow columnar yoke, be used to produce the separating brake actuating force switching winding, be used to produce the combined floodgate actuating force closing coil, be used for the permanent magnet that divide-shut brake keeps, output shaft and the moving iron core that is used to export branch, combined floodgate actuating force; Said moving iron core is fixedly connected with said output shaft; Said branch, closing coil, permanent magnet are located in the said yoke; And directly connect the inwall of said yoke; Said permanent magnet is looped around the outside of said moving iron core ringwise.
For above-mentioned any described ac high-voltage bistable permanent magnetic contactor, said intelligent controller comprise be used to transmit manually or the control of remote control divide-shut brake control signal open entry loop, be used to receive output breaking-closing operating instruction after opening the control signal of entry loop and carry out logic determines from said control function of tonic chord loop, can export accordingly to control the output loop of said contactor body according to the breaking-closing operating instruction of said function of tonic chord loop output.
Also be provided with in the said function of tonic chord loop through a series of logic analyses and judge the logic discrimination sub-loop that draws said breaking-closing operating instruction; Do not contain the analysis that the current divide-shut brake position of said contactor body is carried out in the said logic analysis, the breaking-closing operating instruction of deciding pulsewidth form of said breaking-closing operating instruction for modulating.
Said contactor circuit preferably is provided with the fuse circuit interface that is used to realize making up with fuse interlock control; Being provided with fuse in the said fuse circuit interface threads off and exclusive circuit; Said fuse is threaded off and the working method of exclusive circuit is: when fuse blows, contactor is separating brake reliably; When one mutually or heterogeneous fuse be unkitted fashionablely, contactor can No switching on.
The beneficial effect of the utility model is: owing to replaced traditional electromagnetic drive mechanism with permanent mechanism driving mechanism; The magnetic field energy that provides by permanent magnet in the on/off switch position; Make it to remain on extreme position, do not need just ability self-sustaining of external power source, improved the reliability of operating mechanism greatly;
Because permanent mechanism driving mechanism has saved mechanical devices such as the energy storage, snap close of traditional mechanism rapid wear; Simplify the structure, its number of parts has reduced more than 80% than traditional driving mechanism, has not only simplified assembling; And the reliability and the life-span of having improved driving mechanism greatly; Frequent operation for a long time, the life-span is 300,000 times, and it is permanent non-maintaining that contactor is accomplished;
Because permanent mechanism driving mechanism branch, switching current are little, low in energy consumption, thus to power supply require lowly, owing to adopted electric capacity, avoided the influence of accessory power supply fluctuation simultaneously to said permanent mechanism driving mechanism operating characteristics;
Owing to adopted based on the novel intelligent type permanent magnet mechanism controller of deciding pulse width modulation controlled, this controller need not be gathered the contactor position signalling, divide-shut brake reliably under any circumstance, thus improved the reliability of control section;
Owing to adopted supporting current limiting fuse, have fuse and thread off and blocking function, can realize short-circuit protection reliably: when fuse blows, contactor is separating brake reliably; When one mutually or heterogeneous fuse be unkitted fashionablely, contactor can No switching on, the intelligent level of protection is improved.
Description of drawings
Fig. 1 is the mechanical structure sketch map of an embodiment of the utility model;
Fig. 2 is the structural representation of an embodiment of the bistable permanent magnetic driving mechanism of the utility model;
Fig. 3 is the theory diagram of the intelligent controller of the utility model;
Fig. 4 is the schematic diagram of expansion of a kind of embodiment of the intelligent controller of the utility model;
Fig. 5 is the control model figure of the intelligent controller of traditional controller;
Fig. 6 is the control model figure of the intelligent controller of the utility model;
Fig. 7 is the operation principle sketch map of the utility model.
Embodiment
As shown in Figure 1; The utility model provides a kind of ac high-voltage bistable permanent magnetic contactor; It is applicable to that interchange 50HZ, rated voltage are among the electric power system of 10KV; Be used to connect occasion with disjunction and frequent starting and needs a large amount of deciliters such as control alternating current motor, transformer and capacitor group, frequent operation; It comprises contactor body and two parts of contactor circuit, said contactor body comprise be used to drive close, the bistable permanent magnetic driving mechanism 11 of separating brake, said contactor circuit comprises the intelligent controller that is used to control said permanent mechanism driving mechanism action.
As shown in Figure 2; Said permanent mechanism driving mechanism comprise fixing hollow columnar yoke, be used to produce the separating brake actuating force switching winding 7, be used to produce the combined floodgate actuating force closing coil 6, be used for the permanent magnet 2 that divide-shut brake keeps, output shaft 4 and the moving iron core that is used to export branch, combined floodgate actuating force; Said moving iron core is fixedly connected with said output shaft; Said branch, closing coil, permanent magnet are located in the said yoke; And directly connecting the inwall of said yoke, said permanent magnet is looped around the outside of said moving iron core ringwise.
Said yoke is preferably the branch body structure; Yoke body 1 and the separating brake baffle plate that is provided with central through hole 8 and combined floodgate baffle plate 5 that is fixedly connected on the left and right two ends of said yoke body that can comprise the hollow columnar of both ends open; And utilize hold-down nut 9 to be fixed in the two ends of said yoke respectively; Said output shaft runs through said branch, closing coil, the middle part of branch, combined floodgate baffle plate and permanent magnet.Whole driving mechanism is installed on the mount pad 3; This permanent mechanism driving mechanism utilizes a kind of magnetic circuit system of stable state; Use magnetizing coil (switching winding and closing coil) to drive moving iron core and move to corresponding extreme position; And the magnetic field energy of utilizing high performance said permanent magnet to provide makes it to remain on corresponding extreme position, excites one of them magnetizing coil to make it to produce the actuating force greater than the residue confining force, and the moving iron core that can make said permanent mechanism driving mechanism is to another extreme position action.
The closing operation process is: said permanent mechanism driving mechanism is in the separating brake position; With the conducting of closing operation loop,, press the switch knob of control unit on the spot by control loop for closing operation is got ready; Perhaps through remote operation starting closing circuit; Encourage the closing coil of permanent mechanism driving mechanism, overcome the suction of separating brake side permanent magnet, make iron core drive the contactor moving contact simultaneously and close a floodgate by fixing speed.When contactor was in closing position, control loop broke off the closing coil power supply automatically, and allows sub-switching operation simultaneously; Ready for sub-switching operation, this moment, moving iron core was because the effect of permanent magnet remains on the combined floodgate side, after the closing coil outage; It not only can overcome the reaction force of probe of contactor spring; But also have certain combined floodgate self-sustaining power, and make contactor remain on closing position reliably, need not to continue energising or establish holding device in addition.
The sub-switching operation process is: contactor is in closing position, by control loop with the conducting of sub-switching operation loop, for sub-switching operation is got ready.Press the opening button of control unit on the spot,, make iron core driving contactor moving contact by the fixing speed separating brake when overcoming the self-sustaining power of permanent magnet of permanent mechanism driving mechanism combined floodgate side perhaps through the switching winding of remote operation excitation operating mechanism.When contactor has been in the separating brake position, automatically with the excision of switching winding power supply, and allow closing operation simultaneously, for closing operation is got ready.When permanent mechanism driving mechanism was in the separating brake position, moving iron core was because the effect of permanent magnet remains on the separating brake side, and contactor is in the separating brake position reliably, and false switching can not occur.
Said contactor body also comprises transmission mechanism 13 and insulator 14; Said transmission mechanism comprises successively the macro-axis that flexibly connects, connecting lever and in flakes; Said insulator includes vacuum interrupter and current-carrying part; One end of said transmission mechanism connects the output shaft of said permanent mechanism driving mechanism, and the other end of said transmission mechanism connects the moved end of the arc control device of said insulator.Insulator realizes that high tension loop reaches phase insulation and support over the ground, and transmission mechanism and permanent mechanism driving mechanism are realized the divide-shut brake action of contactor.
Said contactor body can also comprise chassis 10 and be installed in the framework 12 on the chassis that said permanent mechanism driving mechanism is installed in the said framework.
Like Fig. 3, shown in 4; For above-mentioned any described ac high-voltage bistable permanent magnetic contactor, said intelligent controller comprise be used to transmit manually or the control of remote control divide-shut brake control signal open entry loop, be used to receive output breaking-closing operating instruction after opening the control signal of entry loop and carry out logic determines from said control function of tonic chord loop, can export accordingly to control the output loop of said contactor body according to the breaking-closing operating instruction of said function of tonic chord loop output.Said control is opened entry loop and is utilized photoelectric isolation technology, and input signal is isolated, and has improved the anti-interference of system.Said function of tonic chord loop has functions such as logic discrimination, interlock function, alarm loop, System self-test, and this partial circuit provides corresponding operational order through the judgement of splitting into amount and/or analog quantity and System self-test situation.
Also be provided with in the said function of tonic chord loop through a series of logic analyses and judge the logic discrimination sub-loop that draws said breaking-closing operating instruction; Do not contain the analysis that the current divide-shut brake position of said contactor body is carried out in the said logic analysis, the breaking-closing operating instruction of deciding pulsewidth form of said breaking-closing operating instruction for modulating.
Be illustrated in figure 5 as the control model of the controller in traditional contactor, controller will judge earlier whether the position of contactor is correct before providing the divide-shut brake instruction, break down if open entry loop, and controller just can not provide action command so.Behind long-time, frequent operation, owing to reasons such as wearing and tearing, vibrations, the probability that breaks down in the loop of collection position signal is bigger, causes contactor to refuse branch or refuse to close easily.
To this defective, the utility model combines bistable-state permanent magnet mechanism, has designed based on the novel intelligent type permanent magnet mechanism controller of deciding pulse width modulation controlled.Its control model is as shown in Figure 6, and this controller need not be gathered the contactor position signalling, controller provide can modulate decide pulsewidth divide-shut brake instruction, divide-shut brake reliably under any circumstance.Experiment shows that controller can cooperate permanent magnet mechanism to accomplish the frequent action message of contactor.
Said intelligent controller can also comprise and being connected with said function of tonic chord loop and the order circuit of two-way communication; Said communicating circuit is provided with the RS-485 communication interface; Can be through the mode of communication, that accomplishes contactor information (position, system related information) uploads functions such as remote control divide-shut brake.
Said intelligent controller can also comprise be used for voltage, current information convert to said function of tonic chord loop needs form data and import said function of tonic chord loop the analog quantity input circuit and can be according to the loop of leaving of the operational order in said function of tonic chord loop output respective switch signal.Said analog quantity input circuit adopts EMI to suppress technology and photoelectric isolation technology, has adopted high-precision amplifier and comparator simultaneously, has guaranteed the accuracy of sampling precision and alarm.
Said intelligent controller also preferably includes input voltage is transformed to dc operation voltage, simultaneously can be to the supply voltage translation circuit of other each loop power supplies of comprising said function of tonic chord loop.Said supply voltage transformation loop utilizes AC (DC)/dc voltage converter technique, and input voltage is transformed to dc operation voltage, and to the control loop power supply, the supply voltage translation circuit has voltage stabilizing function simultaneously.
Said contactor circuit preferably is provided with the fuse circuit interface that is used to realize making up with fuse interlock control; Being provided with fuse in the said fuse circuit interface threads off and exclusive circuit; Said fuse is threaded off and the working method of exclusive circuit is: when fuse blows, contactor is separating brake reliably; When one mutually or heterogeneous fuse be unkitted fashionablely, contactor can No switching on.When being used with fuse, on the insulation fixed mount, the fuse bearing is installed usually, fuse (referring to 15 among Fig. 1) is installed on this bearing, also be equipped with the interlock tripping mechanism.The fuse circuit part is connected to form the loop with the contactor circuit part through said fuse circuit interface, specifically is that said fuse and insulator are formed the galvanic circle.
Said closing coil, switching winding, intelligent controller, auxiliary switch and capacitor etc. are formed control loop, and the integrated framework inside that is installed on said contactor is as shown in Figure 7; The operation principle of the utility model is: AC power becomes DC power supply and sends into said intelligent controller after rectification, and after receiving the order of closing a floodgate, the CPU of said intelligent controller is through after calculating, handling; Send reclosing command; The closing coil energising of said permanent mechanism driving mechanism, said permanent mechanism driving mechanism action is through linking to each other in flakes with macro-axis with said permanent mechanism driving mechanism; The band macro-axis rotates; Through the connecting lever that links to each other with insulator with macro-axis, drive the action of arc control device moved end, contactor is realized closing a floodgate; Separating brake is opposite process.
The utility model has reduced contactor branch, switching current, has reduced energy consumption, has improved reliability, has improved mechanical endurance, has overcome shortcomings such as electromagnetic contactor big energy-consuming, contact bounce, and has had self-retaining function, has certain popularization and using value.
Claims (10)
1. ac high-voltage bistable permanent magnetic contactor; Comprise two parts of contactor body and contactor circuit; It is characterized in that said contactor body comprise be used to drive close, the bistable permanent magnetic driving mechanism of separating brake, said contactor circuit comprises the intelligent controller that is used to control said permanent mechanism driving mechanism action.
2. ac high-voltage bistable permanent magnetic contactor as claimed in claim 1; It is characterized in that said permanent mechanism driving mechanism comprise fixing hollow columnar yoke, be used to produce the separating brake actuating force switching winding, be used to produce the combined floodgate actuating force closing coil, be used for the permanent magnet that divide-shut brake keeps, output shaft and the moving iron core that is used to export branch, combined floodgate actuating force; Said moving iron core is fixedly connected with said output shaft; Said branch, closing coil, permanent magnet are located in the said yoke; And directly connecting the inwall of said yoke, said permanent magnet is looped around the outside of said moving iron core ringwise.
3. ac high-voltage bistable permanent magnetic contactor as claimed in claim 2; It is characterized in that said contactor body also comprises transmission mechanism and insulator; One end of said transmission mechanism connects the output shaft of said permanent mechanism driving mechanism, and the other end of said transmission mechanism connects the moved end of the arc control device of said insulator.
4. ac high-voltage bistable permanent magnetic contactor as claimed in claim 3 is characterized in that said contactor body also comprises chassis and is installed in the framework on the chassis, and said permanent mechanism driving mechanism is installed in the said framework.
5. like claim 1,2,3 or 4 described ac high-voltage bistable permanent magnetic contactors, it is characterized in that said intelligent controller comprise be used to transmit manually or the control of remote control divide-shut brake control signal open entry loop, be used to receive output breaking-closing operating instruction after opening the control signal of entry loop and carry out logic determines from said control function of tonic chord loop, can export accordingly to control the output loop of said contactor body according to the breaking-closing operating instruction of said function of tonic chord loop output.
6. ac high-voltage bistable permanent magnetic contactor as claimed in claim 5; It is characterized in that being provided with in the said function of tonic chord loop and judge the logic discrimination sub-loop that draws said breaking-closing operating instruction through a series of logic analyses; Do not contain the analysis that the current divide-shut brake position of said contactor body is carried out in the said logic analysis, the breaking-closing operating instruction of deciding pulsewidth form of said breaking-closing operating instruction for modulating.
7. ac high-voltage bistable permanent magnetic contactor as claimed in claim 6 is characterized in that said intelligent controller also comprises to be connected with said function of tonic chord loop and the order circuit of two-way communication, and said communicating circuit is provided with the RS-485 communication interface.
8. ac high-voltage bistable permanent magnetic contactor as claimed in claim 7, it is characterized in that said intelligent controller also comprise be used for voltage, current information convert to said function of tonic chord loop needs form data and import said function of tonic chord loop the analog quantity input circuit and can be according to the loop of leaving of the operational order in said function of tonic chord loop output respective switch signal.
9. ac high-voltage bistable permanent magnetic contactor as claimed in claim 8; It is characterized in that said intelligent controller also comprises is transformed to dc operation voltage with input voltage, simultaneously can be to the supply voltage translation circuit of other each loop power supplies of comprising said function of tonic chord loop.
10. ac high-voltage bistable permanent magnetic contactor as claimed in claim 9; It is characterized in that said contactor circuit is provided with the fuse circuit interface that is used to realize making up with fuse interlock control; Being provided with fuse in the said fuse circuit interface threads off and exclusive circuit; Said fuse is threaded off and the working method of exclusive circuit is: when fuse blows, contactor is separating brake reliably; When one mutually or heterogeneous fuse be unkitted fashionablely, contactor can No switching on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205075434U CN202363371U (en) | 2011-12-08 | 2011-12-08 | Alternating-current high-voltage bistable permanent magnet contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205075434U CN202363371U (en) | 2011-12-08 | 2011-12-08 | Alternating-current high-voltage bistable permanent magnet contactor |
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| Publication Number | Publication Date |
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| CN202363371U true CN202363371U (en) | 2012-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205075434U Expired - Lifetime CN202363371U (en) | 2011-12-08 | 2011-12-08 | Alternating-current high-voltage bistable permanent magnet contactor |
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| CN (1) | CN202363371U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745884A (en) * | 2014-01-13 | 2014-04-23 | 江苏现代电力科技股份有限公司 | Intelligent integration high-voltage alternating current contactor |
| WO2015180511A1 (en) * | 2014-05-27 | 2015-12-03 | 华为技术有限公司 | Contactor driving circuit |
| CN110085486A (en) * | 2019-06-03 | 2019-08-02 | 昆山瑞普电气有限公司 | Double drive high-speed switch |
| CN116417303A (en) * | 2023-03-21 | 2023-07-11 | 国网山东省电力公司成武县供电公司 | High-voltage intelligent drop-out fuse device and safe gate opening and closing method |
-
2011
- 2011-12-08 CN CN2011205075434U patent/CN202363371U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745884A (en) * | 2014-01-13 | 2014-04-23 | 江苏现代电力科技股份有限公司 | Intelligent integration high-voltage alternating current contactor |
| CN103745884B (en) * | 2014-01-13 | 2015-01-07 | 江苏现代电力科技股份有限公司 | Intelligent integration high-voltage alternating current contactor |
| WO2015103885A1 (en) * | 2014-01-13 | 2015-07-16 | 江苏现代电力科技股份有限公司 | Intelligent integrated high-voltage alternating-current contactor |
| WO2015180511A1 (en) * | 2014-05-27 | 2015-12-03 | 华为技术有限公司 | Contactor driving circuit |
| CN110085486A (en) * | 2019-06-03 | 2019-08-02 | 昆山瑞普电气有限公司 | Double drive high-speed switch |
| CN116417303A (en) * | 2023-03-21 | 2023-07-11 | 国网山东省电力公司成武县供电公司 | High-voltage intelligent drop-out fuse device and safe gate opening and closing method |
| CN116417303B (en) * | 2023-03-21 | 2023-09-01 | 国网山东省电力公司成武县供电公司 | High-voltage intelligent drop-out fuse device and safe gate opening and closing method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120801 |
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| CX01 | Expiry of patent term |