CN1988094A - DC permanent magnet contactor - Google Patents
DC permanent magnet contactor Download PDFInfo
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- CN1988094A CN1988094A CN 200610125204 CN200610125204A CN1988094A CN 1988094 A CN1988094 A CN 1988094A CN 200610125204 CN200610125204 CN 200610125204 CN 200610125204 A CN200610125204 A CN 200610125204A CN 1988094 A CN1988094 A CN 1988094A
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- permanent magnet
- contactor
- iron core
- moving iron
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Abstract
This invention relates to a DC magnet contacting device including a contactor system and a drive system connected with the contactor and an operational system providing power to open and close the contactor and controlling it, said operational system includes a magnet unit and an assistant switch for switching, controlling and interlocking the magnet unit including an opening coil, a close coil, a magnetic cylinder, a moving core and a permanent magnet, in which, the close coil and the open coil are set at both ends of the moving core, the assistant switch is connected with the driving system and the magnet unit.
Description
Technical field
The present invention relates to a kind of DC permanent magnet contactor, belong to the control technology field in the electric system, be applicable to various automatically controlled occasions, be specially adapted to the control automatically of ship electricity.
Background technology
Existing D.C. contactor, as ZCZ-2,3 conversion contactors, employing be the operation format that Electromagnetically-operating adds mechanical lock buckle, operation principle as shown in Figure 2, its running is:
Making process: energized positive pole (+), connect power switch switch 5 again, electric current by normally closed auxiliary switch 3.2.1 again through closing line circle 8 to power cathode (-), closing circuit is promptly switched on.Contactor is under the effect of closing coil 8, overcome reaction spring, to make position motion, when arriving make position, normally closed auxiliary switch 3.2.1 is converted to disconnection by normally closed, make closing coil 8 outages, simultaneously, shunt release is with and is kept circuit switching 10 closures, hold-in winding 9 energisings, keep loop works, making process finishes.At this moment, often open auxiliary switch 3.2.2 and be converted to closure, ready for sub-switching operation, mechanical lock buckle also is in the snap close state.
The disconnection process: energized positive pole (+), connect separating brake mains switch 6 again, electric current by in the making process closed often open auxiliary switch 3.2.2 again through switching winding 7 to power cathode (-), sub-gate circuit is promptly switched on.Contactor is under the effect of switching winding 7, mechanical lock buckle is triped, simultaneously, shunt release is with and is kept circuit switching 10 to disconnect, and hold-in winding 9 outages make electricity keep the loop outage, contactor is under the effect of disjunction spring, to the open position motion, and make contactor remain on open position, the disconnection process finishes.At this moment, normally closed auxiliary switch 3.2.1 has been converted to closure, for closing operation is got ready.
When contactor was triped, often open auxiliary switch 3.2.2 and the shunt release of contactor were with and are kept circuit switching 10 to work good, otherwise release gear can't be triped.In order to satisfy action request, auxiliary switch can only dispersed placement, has increased the complexity of mechanism, adjust require high, the reliability of contactor is reduced, the auxiliary switch of this contactor adopts the Direct Action Type bridging contact simultaneously, open layout, and anti-environment capacity is poor, in having the environment of mist of oil, when contact surface had oil film, the contact will loose contact cause the contactor electric operating malfunctioning, reduces its reliability.
Owing to have hold-in winding 9, in order to guarantee low temperature rise, the wire diameter of hold-in winding 9 is generally all very little, adds that the space is less, and the scrappage of this coil in the course of processing is higher always, and the coil burning phenomenon is also arranged in actual use; In order to guarantee reliable adhesive and magnetic confining force, the non-working-gap of magnetic system under closure state is less, in the process and assemble process, do not note slightly, in the use afterwards because the influence of remanent magnetism, will come in contact device lumbering phenomenon when triping, influence reliability.
Summary of the invention
The objective of the invention is to, overcome the shortcoming of prior art, a kind of DC permanent magnet contactor is provided, this contactor adopts permanent magnet mechanism to replace the mechanical lock buckle in the existing contactor and keeps the electromagnetic mechanism in loop, it is more simple, reliable that its course of work becomes, and is active in one's movements.
Technical scheme of the present invention is: described a kind of DC permanent magnet contactor, comprise contact system and the drive system that is connected with contact system, and also promising contact is opened, closure provides power and the operating system controlled; Described operating system comprises a permanent magnet mechanism and an auxiliary switch that permanent magnet mechanism is played conversion, control and interlocking effect; Described permanent magnet mechanism comprises switching winding, closing coil, magnetic cylinder, moving iron core, permanent magnet; Moving iron core two ends have closing coil and switching winding respectively; Auxiliary switch connects drive system and permanent magnet mechanism.
Further technical scheme is:
Described closing coil and switching winding are contained in the magnetic cylinder, and moving iron core is contained among closing coil and the switching winding movingly, and permanent magnet is contained in the outside of moving iron core, between closing coil and switching winding.
Described drive system is a linkage, and wherein, an end of dwang and auxiliary switch flexibly connect by the switch connecting rod, and the other end and permanent magnet mechanism flexibly connect; The middle part of dwang flexibly connects a fixed lever, and this fixed lever one end is fixed on the pedestal, and the dwang middle part also flexibly connects by contact system connecting rod and contact system.
The moving iron core connecting rod of the other end of described dwang and permanent magnet mechanism flexibly connects.
Described contact system includes contact and arc-control device.
The technique effect of DC permanent magnet contactor of the present invention is, that assembling is adjusted is simple, the course of work is simple, be active in one's movements, reliability height, auxiliary switch are arranged and concentrated.
Description of drawings
Fig. 1 is the structural representation of an embodiment of DC permanent magnet contactor of the present invention;
Fig. 2 is the fundamental diagram of existing D.C. contactor;
Fig. 3 is the fundamental diagram of the described embodiment DC permanent magnet contactor of Fig. 1;
Fig. 4 is the schematic diagram of the permanent magnet mechanism among the described embodiment of Fig. 1.
Fig. 5 is the structural representation of the permanent magnet mechanism among the described embodiment of Fig. 1.
The member name of each figure number is called among the figure:
The 1-contact system; The 2-drive system, 2.1-dwang, 2.2-switch connecting rod, 2.3-contact system connecting rod, 2.4-fixed lever; 3-operating system, the 3.1-permanent magnet mechanism, the 3.2-auxiliary switch, the normally closed auxiliary switch of 3.2.1-, 3.2.2-often drives auxiliary switch; The 4-pedestal, 5-power switch switch, 6-separating brake mains switch, the 7-switching winding, the 8-closing coil, the 9-hold-in winding, 10-keeps circuit switching, 13-magnetic cylinder, 14-moves iron core, the 15-permanent magnet, 16-moves the iron core connecting rod.
Embodiment
Shown in Fig. 1,3,4,5: a kind of DC permanent magnet contactor, a contact system 1 and the drive system 2 that is connected with contact system 1 are arranged, also promising contact is opened, closure provides power and the operating system 3 controlled; Described operating system 3 has a permanent magnet mechanism 3.1 and an auxiliary switch 3.2 that permanent magnet mechanism 3.1 is played conversion, control and interlocking effect; Described permanent magnet mechanism 3.1 is made up of switching winding 7, closing coil 8, magnetic cylinder 13, moving iron core 14, permanent magnet 15 and moving iron core connecting rod 16; Moving iron core 14 two ends have closing coil 8 and switching winding 7 respectively; Auxiliary switch 3.2 connects drive system 2 and permanent magnet mechanism 3.1; Described closing coil 8 and switching winding 7 are contained in the magnetic cylinder 13, and moving iron core 14 is contained among closing coil 8 and the switching winding 7 movingly, and permanent magnet 15 is contained in the outside of moving iron core 14, between closing coil 8 and switching winding 7; Drive system 2 is linkages, and wherein, an end of dwang 2.1 and auxiliary switch 3.2 flexibly connect by switch connecting rod 2.2, and the other end and permanent magnet mechanism 3.1 flexibly connect; The middle part of dwang 2.1 flexibly connects a fixed lever 2.4, and these fixed lever 2.4 1 ends are fixed on the pedestal 4, and the middle part of dwang 2.1 also flexibly connects by contact system connecting rod 2.3 and contact system 1; The moving iron core connecting rod 16 of the other end of dwang 2.1 and permanent magnet mechanism 3.1 flexibly connects; Contact system 1 includes contact and arc-control device, and this contact and arc-control device flexibly connect with drive link 2.1 respectively, and promptly contact system connecting rod 2.3 is divided into two, and one of them is the contact connecting rod, and another is the arc-control device connecting rod.
Operation principle and structure in conjunction with symbol Fig. 1,3,4,5 pairs of DC permanent magnet contactors of the present invention are described further as follows:
Making process: energized positive pole (+), connect power switch switch 5 again, electric current by normally closed auxiliary switch 3.2.1 again through closing line circle 8 to power cathode (-); Under the effect of closing coil 8, overcome the confining force of permanent magnet 15, move to make position, when being about to arrive make position, normally closed auxiliary switch 3.2.1 is converted to disconnection by normally closed, makes closing coil 8 outages, at this moment, the suction that relies on permanent magnet 15 to produce makes mechanism continue to move to make position and keeps, and making process is finished.At this moment, often open auxiliary switch 3.2.2 and be converted to closure, for sub-switching operation is got ready.
The disconnection process is: energized positive pole (+), connect separating brake mains switch 6 again, electric current by in the making process closed often open auxiliary switch 3.2.2 again through switching winding 7 to power cathode (-); Under the effect of switching winding 7, overcome the confining force of permanent magnet 15, move to open position, when being about to arrive open position, often opening auxiliary switch 3.2.2 often is reduced to and opens, make switching winding 7 outages, rely on this moment the suction of permanent magnet 15 to make mechanism continue to move to open position and maintenance, the disconnection process is finished.At this moment, normally closed auxiliary switch 3.2.1 has been reduced to closure, for closing operation is got ready.
Permanent magnet mechanism 3.1 (seeing accompanying drawing 4,5) is that the permanent magnetic action with electromagnetic action and permanent magnet organically combines, and the attraction that produces by permanent magnet 15 just can make contactor remain on combined floodgate or the separating brake position.The present invention adopts bistable-state permanent magnet mechanism 3.1, and it mainly is made up of magnetic cylinder 13, moving iron core 14, permanent magnet 15, switching winding 7, closing coil 8, moving iron core connecting rod 16.When contactor was in closing position, the magnetic field of permanent magnet 15 mainly acted on the below of moving iron core 14.When receiving the separating brake order, switching winding 7 passes to corresponding electric current makes its magnetic direction in the generation of top working gas gap opposite with the magnetic direction of permanent magnet 15, its magnetic line of force mainly is distributed in the upper end of moving iron core 14, when switching winding 7 electric currents reach a certain value, moving iron core 14 begins to move upward, and presents accelerated motion along with the top air gap reduces.When moving iron core 14 reaches the separating brake position, cut off the electric current of switching winding 7, by the attraction maintenance separating brake position of permanent magnet 15.Operation principle is identical when becoming combined floodgate by the separating brake position.
Fig. 1 is the embodiment of DC permanent magnet contactor of the present invention, is used for the motor excitation loop of DC 220V.Described DC permanent magnet contactor contact system 1 (including arc-control device), the dwang 2.1 of drive system 2, permanent magnet mechanism 3.1, auxiliary switch 3.2 be installed on the pedestal 6, belong to floor plan and install; Permanent magnet mechanism 3.1 actions drive contact system connecting rod 2.3 by dwang 2.1 and realize contact and the combined floodgate (or separating brake) of arc quenching system and the conversion of auxiliary switch 3.2, and this process is simply reliable, and Installation and Debugging are simple, make things convenient for the process of through engineering approaches.When switching winding 7 energisings, moving iron core 14 arrives the upper end, and its permanent magnet mechanism 3.1 drive dwangs 2.1, contact system connecting rod 2.3 are realized the disjunction of contactor, the moving lower end that arrives unshakable in one's determination when closing coil is switched on, the combined floodgate or the conversion of realization contactor.
Claims (5)
1, a kind of DC permanent magnet contactor comprises contact system (1) and the drive system (2) that is connected with contact system (1), and also promising contact is opened, closure provides power and the operating system (3) controlled; It is characterized in that described operating system (3) comprises a permanent magnet mechanism (3.1) and an auxiliary switch (3.2) that permanent magnet mechanism (3.1) is played conversion, control and interlocking effect; Described permanent magnet mechanism (3.1) comprises switching winding (7), closing coil (8), magnetic cylinder (13), moving iron core (14), permanent magnet (15); Moving iron core (14) two ends have closing coil (8) and switching winding (7) respectively; Auxiliary switch (3.2) connects drive system (2) and permanent magnet mechanism (3.1).
2, DC permanent magnet contactor as claimed in claim 1, it is characterized in that, described closing coil (8) and switching winding (7) are contained in the magnetic cylinder (13), moving iron core (14) is contained among closing coil (8) and the switching winding (7) movingly, permanent magnet (15) is contained in the outside of moving iron core (14), is positioned between closing coil (8) and the brake cable circle (7).
3, DC permanent magnet contactor as claimed in claim 1, it is characterized in that described drive system (2) is a linkage, wherein, one end of dwang (2.1) and auxiliary switch (3.2) flexibly connect by switch connecting rod (2.2), and the other end and permanent magnet mechanism (3.1) flexibly connect; The middle part of dwang (2.1) flexibly connects a fixed lever (2.4), and these fixed lever (2.4) one ends are fixed on the pedestal (4), and the middle part of dwang (2.1) also flexibly connects by contact system connecting rod (2.3) and contact system (1).
4, DC permanent magnet contactor as claimed in claim 3 is characterized in that, the moving iron core connecting rod (16) of the other end of described dwang (2.1) and permanent magnet mechanism (3.1) flexibly connects.
5, DC permanent magnet contactor as claimed in claim 1 is characterized in that, described contact system (1) includes contact and arc-control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101252043A CN100459009C (en) | 2006-11-30 | 2006-11-30 | DC permanent magnet contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101252043A CN100459009C (en) | 2006-11-30 | 2006-11-30 | DC permanent magnet contactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1988094A true CN1988094A (en) | 2007-06-27 |
| CN100459009C CN100459009C (en) | 2009-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101252043A Expired - Fee Related CN100459009C (en) | 2006-11-30 | 2006-11-30 | DC permanent magnet contactor |
Country Status (1)
| Country | Link |
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| CN (1) | CN100459009C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101145468B (en) * | 2007-07-27 | 2010-11-10 | 浙江正泰电器股份有限公司 | Automatic switching switch adopting permanent-magnet operation device |
| CN104332366A (en) * | 2014-10-17 | 2015-02-04 | 宝鸡市西高电气科技有限公司 | Permanent magnetic mechanism with closing holding coil |
| CN109585196A (en) * | 2018-12-29 | 2019-04-05 | 昆山瑞普电气有限公司 | Magneto modular contact interlocking mechanism |
| CN110085486A (en) * | 2019-06-03 | 2019-08-02 | 昆山瑞普电气有限公司 | Double drive high-speed switch |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2553494Y (en) * | 2002-07-19 | 2003-05-28 | 严洪启 | Permanent-magnet separation tripping device |
| CN2676392Y (en) * | 2003-11-12 | 2005-02-02 | 吉林永大（集团）有限公司 | A permanent magnet low-voltage vacuum contactor |
-
2006
- 2006-11-30 CN CNB2006101252043A patent/CN100459009C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101145468B (en) * | 2007-07-27 | 2010-11-10 | 浙江正泰电器股份有限公司 | Automatic switching switch adopting permanent-magnet operation device |
| CN104332366A (en) * | 2014-10-17 | 2015-02-04 | 宝鸡市西高电气科技有限公司 | Permanent magnetic mechanism with closing holding coil |
| CN109585196A (en) * | 2018-12-29 | 2019-04-05 | 昆山瑞普电气有限公司 | Magneto modular contact interlocking mechanism |
| CN109585196B (en) * | 2018-12-29 | 2024-05-31 | 昆山瑞普电气有限公司 | Permanent magnet type combined contactor interlocking mechanism |
| CN110085486A (en) * | 2019-06-03 | 2019-08-02 | 昆山瑞普电气有限公司 | Double drive high-speed switch |
| CN110085486B (en) * | 2019-06-03 | 2024-05-28 | 昆山瑞普电气有限公司 | Dual-drive fast switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100459009C (en) | 2009-02-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuhan Changhai Electrical Technology Development Co., Ltd. Assignor: The 712 Research Institute, China Shipbuilding Industry Corp Contract fulfillment period: 2009.3.18 to 2014.3.17 contract change Contract record no.: 2009420010009 Denomination of invention: DC permanent magnet contactor Granted publication date: 20090204 License type: Exclusive license Record date: 2009.4.8 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.3.18 TO 2014.3.17; CHANGE OF CONTRACT Name of requester: WUHAN CHANGHAI ELECTRIC TECHNOLOGY DEVELOPMENT CO. Effective date: 20090408 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090204 Termination date: 20131130 |