CN102403138A - Permanent-magnet mechanism with dual iron cores - Google Patents
Permanent-magnet mechanism with dual iron cores Download PDFInfo
- Publication number
- CN102403138A CN102403138A CN2011103828617A CN201110382861A CN102403138A CN 102403138 A CN102403138 A CN 102403138A CN 2011103828617 A CN2011103828617 A CN 2011103828617A CN 201110382861 A CN201110382861 A CN 201110382861A CN 102403138 A CN102403138 A CN 102403138A
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- China
- Prior art keywords
- magnetic domain
- iron core
- screw rod
- permanent magnet
- moving iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 230000007246 mechanism Effects 0.000 title claims abstract description 29
- 230000009977 dual effect Effects 0.000 title abstract 3
- 230000005381 magnetic domain Effects 0.000 claims abstract description 61
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 28
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000004411 aluminium Substances 0.000 claims description 23
- 230000005389 magnetism Effects 0.000 description 4
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The invention relates to a permanent-magnet mechanism with dual iron cores, belonging to the technical field of the permanent-magnet mechanism structure. An upper magnetic domain and a lower magnetic domain are fixed on a drum magnetic domain; a first aluminum pad, a first permanent magnet, an aluminum ring, an intermediate magnetic domain, a second aluminum pad, a second permanent magnet and a switching-off and on coil are arranged in the drum magnetic domain; a first movable iron core is arranged in the aluminum ring, the first permanent magnet and the first aluminum pad; a switching-off screw rod penetrates through the middle of a spiral central hole of the lower magnetic domain and a spiral central hole of the first aluminum pad at intervals; the first movable iron core is fixedly connected with the switching-off screw rod; a second movable iron core is arranged in the switching-off and on coil, the second permanent magnet and the second aluminum pad; a switching-on screw rod penetrates through a spiral central hole of the upper magnetic domain; the second movable iron core is fixedly connected with the switching-on screw rod; a connecting screw rod is fixedly connected between the first movable iron core and the second movable iron core and penetrates through a spiral central hole of the intermediate magnetic domain at intervals; and the switching-off screw rod on the outer end of the lower magnetic domain is provided with a switching-off spring through a fixing nut. The permanent-magnet mechanism with dual iron cores is stable and reliable and can meet the demand of an ultra-high pressure switch operating mechanism.
Description
Technical field
The invention belongs to high-voltage switch gear operating mechanism field, particularly the permanent magnet mechanism technical field of structures.
Background technology
Characteristics such as permanent-magnet operating mechanism is simple in structure with it, and is reliable and stable, and volume is little, non-maintaining are favored by the user deeply; It is a kind of development trend that high voltage switchgear is equipped with permanent-magnet operating mechanism; But, receive the restriction of structure and performance, the movement travel weak point of traditional permanent-magnet operating mechanism (≤25mm); Branch/closing speed not high (≤2.0m/s), can only use in the Medium voltage switch or circuit breaker field.High-voltage switch gear for 72.5kV and above electric pressure; The stroke that requires is generally greater than 40mm; Divide-shut brake speed is generally greater than 3.0m/s, and this just requires to operate can provide bigger movement travel and branch/closing speed of Geng Gao, but traditional permanent magnet mechanism all can't satisfy the demand.
Summary of the invention
The purpose of this invention is to provide a kind of reliable and stablely, can satisfy the permanent magnet mechanism two unshakable in one's determination of superhigh pressure switch operating mechanism demand.
The present invention includes a drum magnetic domain, the upper/lower terminal of said drum magnetic domain be fixed with respectively axial center hole on magnetic domain and following magnetic domain; In the drum magnetic domain on said between magnetic domain and the following magnetic domain, be fixedly provided with the first aluminium pad, first permanent magnet, aluminium ring, middle magnetic domain of annular, the second aluminium pad, second permanent magnet and the divide-shut brake coil of annular from the bottom to top; The said first aluminium pad and the second aluminium pad be the center step of indent respectively, offers axial center hole at each center step; In said aluminium ring, first permanent magnet and the first aluminium pad, arrange the first moving iron core, place the separating brake screw rod at the axial center hole of following magnetic domain and the axial center hole intermediate gap formula of the first aluminium pad, the said first moving iron core is fixedly connected with said separating brake screw rod; In said divide-shut brake coil, second permanent magnet and the second aluminium pad, arrange the second moving iron core, the axial center hole internal clearance formula of magnetic domain places the combined floodgate screw rod on said, and the said second moving iron core is fixedly connected with the combined floodgate screw rod; Between the said first moving iron core and the second moving iron core, be fixedly connected screw rod, said connecting screw rod clearance-type is set in the axial center hole of middle magnetic domain; On the separating brake screw rod of said magnetic domain outer end down, tripping spring is set through hold-down nut.
During work; Whole drum magnetic domain of the present invention is fixed on the framework of high voltage switchgear; Transfixion, entire mechanism is inner, except combined floodgate screw rod, connecting screw rod and separating brake screw rod carry out upper and lower motion along with the first moving iron core, second moves iron core; Outside tripping spring compressed thereupon, miscellaneous part is transfixion all.
When permanent magnet mechanism during at closing position: the second moving iron core contacts with last magnetic domain, through the magnetic circuit of a drum magnetic domain and a closure of second permanent magnet formation; The first moving iron core contacts with middle magnetic domain, forms another closed magnetic circuit through the drum magnetic domain and first permanent magnet, and two magnetic circuits are separate, a permanent magnetism suction is provided for respectively whole permanent magnet mechanism.
When permanent magnet mechanism during in the separating brake position: the second moving iron core separates with last magnetic domain, and contacts with the second following aluminium pad, causes the magnetic line of force of second permanent magnet can't form the magnetic circuit of a sealing; First moves iron core and intermediate magnetic domain separation, and contacts with the first following aluminium pad, causes the second permanent magnet magnetic line of force can't form the magnetic circuit of a sealing, and two magnetic circuits do not seal, and cause the permanent magnetism suction of whole permanent magnet mechanism very little.
The present invention is when closing position; The separate magnetic conductive loop of two-way is arranged; Be respectively whole permanent magnet mechanism permanent magnetism suction is provided, in the motion of mechanism process, two-way permanent magnet magnetic conductive loop is separate; Can under the situation of the external diameter that does not increase whole permanent magnet mechanism, significantly improve the combined floodgate suction of whole permanent magnet mechanism.The present invention is simple in structure, and is reliable and stable, and movement travel can reach 60mm, and branch, closing speed can reach 5.0m/s, can satisfy the demand of superhigh pressure switch operating mechanism.
Description of drawings
Fig. 1 is the structural representation of the present invention at closing position.
Fig. 2 is the structural representation of the present invention in the separating brake position.
Embodiment
Like Fig. 1, shown in 2, the present invention is fixedly connected magnetic domain 2 and following magnetic domain 12 respectively at the upper/lower terminal of drum magnetic domain 6 through double-screw bolt, and last magnetic domain 2 is respectively equipped with axial center hole with following magnetic domain 12.
In the drum magnetic domain 6 between last magnetic domain 2 and following magnetic domain 12, each other ground, location is provided with the second aluminium pad 16, second permanent magnet 4 and the divide-shut brake coil 3 of the first aluminium pad 8, first permanent magnet 7, aluminium ring 15, middle magnetic domain 5, the annular of annular successively from the bottom to top.The first aluminium pad 8 and the second aluminium pad 16 be center step 8-1, the 16-1 of indent respectively, offers axial center hole respectively on center step 8-1 and the 16-1.
In the center step 8-1 of aluminium ring 15, first permanent magnet 7 and the first aluminium pad 8, arrange the first moving iron core 13; Placing separating brake screw rod 11, the first moving iron cores 13 in the axial center hole intermediate gap formula of the axial center hole of following magnetic domain 12 and the first aluminium pad 8 is fixedly connected with separating brake screw rod 11.
In the center step 16-1 of divide-shut brake coil 3, second permanent magnet 4 and the second aluminium pad 16, arrange the second moving iron core 17, place combined floodgate screw rod 1, the second in the axial center hole internal clearance formula of last magnetic domain 2 and move iron core 17 and be fixedly connected with combined floodgate screw rod 1.
Between the first moving iron core 13 and the second moving iron core 17, be fixedly connected screw rod 14, in the axial center hole of magnetic domain 5, said middle magnetic domain 5 was fixed in the drum magnetic domain 6 through double-screw bolt in the middle of connecting screw rod 14 clearance-types were set in.
On the separating brake screw rod 11 of the outer end of descending magnetic domain 12, tripping spring 9 is set through hold-down nut 10.
When permanent magnet mechanism in the separating brake position, when need accomplishing closing operation, apply the electric current of a positive direction in divide-shut brake coil 3 inside; Produce a very big electromagnetic force,, the second moving iron core 17 is closely contacted with last magnetic domain 2 the second moving iron core 17 upwards adhesives; Drive motion on first iron core 13 simultaneously, the first moving iron core 13 is closely contacted with middle magnetic domain 5, form two groups of closed magnetic circuits respectively; Give tripping spring 9 energy storage simultaneously, at this moment, close the electric current of divide-shut brake coil 3; Second moving iron core 17, the first moving iron core 13 is pull-in on respectively on magnetic domain 2, the middle magnetic domain 5 under the effect of permanent magnetism suction tightly, makes whole permanent magnet mechanism remain on closing position.
When permanent magnet mechanism at closing position, when need accomplishing sub-switching operation, apply a reciprocal electric current in divide-shut brake coil 3 inside, produce a very big electromagnetic force; The second moving iron core 17 is pushed away downwards, and along with the increase of electric current, downward thrust increases gradually; When the certain value that increases, the first moving iron core 13 moves downward, and the second moving iron core 17 separates with last magnetic domain 2; The moving iron core 13 of winning is separated with middle magnetic domain 5, and two groups of closed magnetic circuits all are disconnected, and the magnetic force that permanent magnet produces sharply disappears; Second moving iron core 17, the first moving iron core 13 moves downward, when moving to the separating brake position under the acting in conjunction of divide-shut brake coil 3 electric currents and tripping spring 9 rapidly; Close the electric current of divide-shut brake coil 3, under the effect of tripping spring 9 precompressions, whole permanent magnet mechanism remains on the separating brake position.
Claims (1)
1. two permanent magnet mechanisms unshakable in one's determination is characterized in that comprising a drum magnetic domain, the upper/lower terminal of said drum magnetic domain be fixedly connected respectively be provided with axial center hole on magnetic domain and following magnetic domain; In the drum magnetic domain on said between magnetic domain and the following magnetic domain, be fixedly provided with the first aluminium pad, first permanent magnet, aluminium ring, middle magnetic domain of annular, the second aluminium pad, second permanent magnet and the divide-shut brake coil of annular from the bottom to top; The said first aluminium pad and the second aluminium pad be the center step of indent respectively, offers axial center hole at each center step; In said aluminium ring, first permanent magnet and the first aluminium pad, arrange the first moving iron core, place the separating brake screw rod at the axial center hole of following magnetic domain and the axial center hole intermediate gap formula of the first aluminium pad, the said first moving iron core is fixedly connected with said separating brake screw rod; In said divide-shut brake coil, second permanent magnet and the second aluminium pad, arrange the second moving iron core, the axial center hole internal clearance formula of magnetic domain places the combined floodgate screw rod on said, and the said second moving iron core is fixedly connected with the combined floodgate screw rod; Between the said first moving iron core and the second moving iron core, be fixedly connected screw rod, said connecting screw rod clearance-type is set in the axial center hole of middle magnetic domain; On the separating brake screw rod of said magnetic domain outer end down, tripping spring is set through hold-down nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103828617A CN102403138B (en) | 2011-11-28 | 2011-11-28 | Permanent-magnet mechanism with dual iron cores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103828617A CN102403138B (en) | 2011-11-28 | 2011-11-28 | Permanent-magnet mechanism with dual iron cores |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102403138A true CN102403138A (en) | 2012-04-04 |
| CN102403138B CN102403138B (en) | 2013-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103828617A Active CN102403138B (en) | 2011-11-28 | 2011-11-28 | Permanent-magnet mechanism with dual iron cores |
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| CN (1) | CN102403138B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1078381A1 (en) * | 1999-03-09 | 2001-02-28 | E.I.B. S.A. | Bistable magnetic drive for a switch |
| CN2624377Y (en) * | 2003-06-10 | 2004-07-07 | 扬州新概念电气有限公司 | Vacuum automatic circuit recloser |
| US6791442B1 (en) * | 2003-11-21 | 2004-09-14 | Trombetta, Llc | Magnetic latching solenoid |
| CN201536064U (en) * | 2009-10-27 | 2010-07-28 | 珠海方新电气有限责任公司 | Permanent-magnet operating mechanism |
| CN201708051U (en) * | 2009-10-30 | 2011-01-12 | 宝鸡同步电器有限公司 | Novel permanent magnet mechanism |
| CN201749819U (en) * | 2010-08-02 | 2011-02-16 | 珠海许继电气有限公司 | Miniaturized permanent magnetic mechanism for high-voltage vacuum switchgear |
| CN202332607U (en) * | 2011-11-28 | 2012-07-11 | 扬州新概念电气有限公司 | Permanent magnet mechanism with double iron cores |
-
2011
- 2011-11-28 CN CN2011103828617A patent/CN102403138B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1078381A1 (en) * | 1999-03-09 | 2001-02-28 | E.I.B. S.A. | Bistable magnetic drive for a switch |
| CN2624377Y (en) * | 2003-06-10 | 2004-07-07 | 扬州新概念电气有限公司 | Vacuum automatic circuit recloser |
| US6791442B1 (en) * | 2003-11-21 | 2004-09-14 | Trombetta, Llc | Magnetic latching solenoid |
| CN201536064U (en) * | 2009-10-27 | 2010-07-28 | 珠海方新电气有限责任公司 | Permanent-magnet operating mechanism |
| CN201708051U (en) * | 2009-10-30 | 2011-01-12 | 宝鸡同步电器有限公司 | Novel permanent magnet mechanism |
| CN201749819U (en) * | 2010-08-02 | 2011-02-16 | 珠海许继电气有限公司 | Miniaturized permanent magnetic mechanism for high-voltage vacuum switchgear |
| CN202332607U (en) * | 2011-11-28 | 2012-07-11 | 扬州新概念电气有限公司 | Permanent magnet mechanism with double iron cores |
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| Publication number | Publication date |
|---|---|
| CN102403138B (en) | 2013-09-25 |
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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 | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA JIANGSU ELECTRIC P Effective date: 20140912 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Peng Qingming Inventor after: Zhu Xiaoping Inventor after: Liu Zhen Inventor before: Peng Qingming Inventor before: Zhu Xiaoping |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: PENG QINGMING ZHU XIAOPING TO: PENG QINGMING ZHU XIAOPING LIU ZHEN |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140912 Address after: 225127 Jiangsu city of Yangzhou province Hongyang Road No. 20-8 Patentee after: Yangzhou New Concept Electric Co., Ltd. Patentee after: State Grid Corporation of China Patentee after: Jiangsu Electric Power Company Patentee after: Yangzhou Power Supply Company of Jiangsu Electric Power Company Address before: 225127 Jiangsu city of Yangzhou province Hongyang Road No. 20-8 Patentee before: Yangzhou New Concept Electric Co., Ltd. |