CN102005895A - Permanent magnet linear motor with clamping function - Google Patents
Permanent magnet linear motor with clamping function Download PDFInfo
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- CN102005895A CN102005895A CN 201010595115 CN201010595115A CN102005895A CN 102005895 A CN102005895 A CN 102005895A CN 201010595115 CN201010595115 CN 201010595115 CN 201010595115 A CN201010595115 A CN 201010595115A CN 102005895 A CN102005895 A CN 102005895A
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Abstract
具有嵌位功能的永磁直线电机包括初级铁芯(2)、初级线圈(3)、永磁体(8)、次级非磁性轴(9)，所述的初级铁芯(2)、初级线圈(3)、永磁体(8)、次级非磁性轴(9)由外向内依次排列，所述的初级线圈(3)绕制在所述的初级铁芯(2)的槽中，所述的非磁性轴(9)支撑永磁体(8)和内铁芯(7)，气隙(4)为初级与次级之间的空气气隙，内铁芯(7)为固定在次级非磁性轴(9)上且与永磁体(8)的上端紧贴，外铁芯(6)为固定在机壳(1)上的铁芯；在所述的铁芯(6)上绕制了线圈(5)，在吸合时，线圈(5)中通电流时会增加对铁芯(7)的吸力，加速吸合，并起到定位作用；断开时，通反向电流时削弱轴向磁场，加速断路器分离。
The permanent magnet linear motor with clamping function includes a primary iron core (2), a primary coil (3), a permanent magnet (8), a secondary non-magnetic shaft (9), and the primary iron core (2), primary coil (3), permanent magnets (8), and secondary non-magnetic shafts (9) are arranged sequentially from outside to inside, and the primary coil (3) is wound in the slot of the primary iron core (2), and the The non-magnetic shaft (9) supports the permanent magnet (8) and the inner iron core (7), the air gap (4) is the air gap between the primary and the secondary, and the inner iron core (7) is fixed on the secondary non-magnetic On the magnetic shaft (9) and close to the upper end of the permanent magnet (8), the outer iron core (6) is an iron core fixed on the casing (1); Coil (5), when the coil (5) is pulled in, the suction force on the iron core (7) will be increased when the current is passed through the coil (5), the pull-in will be accelerated, and it will play a positioning role; when it is disconnected, the shaft will be weakened when the reverse current is passed To the magnetic field, accelerate breaker separation.
Description
Technical field
This invention belongs to the linear electric motors field, is a kind of cylinder permanent magnetic line motor with clamped function, and this motor can be used in the intelligent grid, and undertaking loads allocates, accident is defendd especially large tracts of land accident defence, safeguards electric power netting safe running.
Background technology
The high voltage switchgear intellectuality can improve the self adaptation and the self-healing ability of electrical network.Therefore intelligent primary cut-out is the important development direction of high voltage switchgear, and the key of its technology is to realize that operating mechanism action safety is controlled.High-quality operating mechanism claimed structure is simple, and moving component is few, and is reliable, and the assurance circuit breaker is realized breaking-closing operating reliably.
High-voltage breaker operation mechanism commonly used at present has spring mechanism, pneumatic mechanism, hydraulic mechanism and hydraulic spring mechanism etc., many, the complex structure of element, and operating process is uncontrollable, can not satisfy intelligentized needs.Researching and developing the permanent-magnet manipulating mechanism that is used in primary cut-out is to come across the sixties in last century the earliest, obtains at first using in the mesolow switchgear.Permanent-magnet manipulating mechanism is simple in structure, and moving component has only one usually, has strengthened the reliability of operating mechanism, has improved useful life, and access times can reach more than 100,000 times, is much higher than existing operating mechanism.Permanent-magnet manipulating mechanism does not have troublesome mechanical lock buckle and other high-speed moving part, so the permanent magnet mechanism failure rate of machinery is well below electromagnetic operating mechanism and spring operating mechanism.
But permanent magnet mechanism does not realize that the actuating process is controlled, and the adhesive impact is big, need use very big impulsive force to disconnect during disconnection, therefore influences the performance and the useful life of circuit breaker to a certain extent yet.Permanent magnet mechanism need use energy storage capacitor to be coil power supply in addition, realize breaking-closing operating, so the quality of energy storage capacitor directly influences the performance of operating mechanism.Permanent magnet suction is big, and therefore just component is big, is difficult to obtain desirable opening velocity characteristic.
Linear electric motor operation mechanism is the intelligent element that comes in the permanent-magnet manipulating mechanism development, meets the Based Intelligent Control requirement.It also has only a moving component, and is simple in structure, does not need energy storage capacitor, and can satisfy the characteristics that stroke is little, speed is fast, just-off speed is big.The breaking-closing operating process can realize precise motion control by control circuit, energy stable operation, so linear electric motor operation mechanism is desirable intelligent operating mechanism.
Summary of the invention
Technical problem:Technical problem to be solved by this invention is the deficiency at the conventional high-tension breaker operation mechanism, provides a kind of simple in structure, does not need energy storage capacitor, and stroke is little, speed is fast, just-off speed is big, and the high-voltage breaker operation mechanism with clamped function.
Technical scheme:For solving the problems of the technologies described above, the permanent-magnetism linear motor with clamped function that the present invention adopts comprises elementary iron core, primary coil, permanent magnet, secondary non magnetic axle, described elementary iron core, primary coil, permanent magnet, secondary non magnetic axle ecto-entad is arranged in order, described primary coil is wound in the groove of described elementary iron core, described non magnetic axle supports permanent magnets and interior iron core, air gap is the air air gap between elementary and secondary, interior iron core is to be fixed on secondary non magnetic axle upward and with the upper end of permanent magnet to be close to, and outer iron core is the iron core that is fixed on the casing; On described iron core coiling coil, when adhesive, can increase suction in the coil during galvanization to iron core, quicken adhesive, and play positioning action; During disconnection, weaken axial magnetic field when leading to reverse current, quicken circuit breaker and separate.
Described permanent magnet is made up of a plurality of single permanent magnet sequence arrangement, and magnetic line of force direction is identical.
Beneficial effect:The present invention adopts permanent-magnetism linear motor, is applied to high-voltage breaker operation mechanism, has following advantage: the volume of (1) permanent-magnetism linear motor is little, response is fast, electromagnetic push is big, control is simple.
(2) power that produces of permanent-magnetism linear motor is by linkage or directly make contact of breaker draw back or contact, keep coil electricity, remain on close, the position of separating brake, do not need to prepare moving holding device, therefore this mechanism has overcome shortcomings such as the parts that existing operating mechanism had are many, transmission mechanism is complicated, motion process is uncontrollable.
(3) very big just-off speed can be obtained during separating brake, and the separating brake position can be remained on; Owing to the weakening of permanent magnetic field, moving iron core does not need to obtain very big kinetic energy during combined floodgate.
Description of drawings
Fig. 1 is the structural scheme of mechanism that the present invention has the permanent-magnetism linear motor of clamped function.
Embodiment
The present invention is that the permanent magnet 8 at permanent-magnetism linear motor is fixed on the non magnetic axle 9 of mover with interior iron core 7, and iron core 6 is fixing with casing 1, and on the tooth of outer iron core 6 coiling 5.
These linear electric motors comprise elementary unshakable in one's determination 2, primary coil 3, permanent magnet 8, secondary non magnetic axle 9, described elementary unshakable in one's determination 2, primary coil 3, permanent magnet 8, secondary non magnetic axle 9 ecto-entads are arranged in order, described primary coil 3 is wound in described elementary unshakable in one's determination 2 the groove, described non magnetic axle 9 supports permanent magnets 8 and interior iron core 7, air gap 4 is the air air gap between elementary and secondary, interior iron core 7 is close to for being fixed on the secondary non magnetic axle 9 and with the upper end of permanent magnet 8, and outer iron core 6 is for being fixed on the iron core on the casing 1; On described iron core 6 coiling coil 5, when adhesive, can increase suction in the coil 5 during galvanization to iron core 7, quicken adhesive, and play positioning action; During disconnection, weaken axial magnetic field when leading to reverse current, quicken circuit breaker and separate.Described permanent magnet 8 is made up of a plurality of single permanent magnet sequence arrangement, and magnetic line of force direction is identical.
In making process, logical forward current strengthens the attraction to iron core 7 in the coil 5, makes the bigger kinetic energy of secondary acquisition, and operating mechanism obtains very big just-off speed.By control device, circuit breaker can not produce sharp impacts during combined floodgate.Iron core 7 has small gap with outer iron core 6 in this moment, hold-in winding 5 energisings, and suction makes secondary this position that remains on, and makes operating mechanism remain on the separating brake position; In the separating brake process, logical reverse current weakens axial permanent magnetic field in the coil 5, does not secondaryly so need to obtain very big initial kinetic energy with regard to actively, moves to the separating brake position.
For primary cut-out, electric operating mechanism is a kind of novel operating mechanism, and it is that the power that produces of motor is by linkage or directly make contact of breaker draw back or contact, coil 5 energisings, just can keep closing position, not need holding device, simplify the internal structure of an organization.This mechanism has overcome shortcomings such as the parts that existing operating mechanism had are many, transmission mechanism is complicated, motion process is uncontrollable.Advantages such as the permanent-magnet linear direct current machine is little with its volume, response is fast, electromagnetic push is big, control is simple more and more receive publicity.The permanent-magnetism linear motor of primary cut-out operating mechanism set forth in the present invention with clamped function, be a kind of simple in structure, do not need energy storage capacitor, stroke is little, speed is fast, just-off speed is big, and high-voltage breaker operation mechanism with clamped function, be a kind of New Intelligent element, meet the requirement of Based Intelligent Control, have good application prospects.
Claims (2)
1. permanent-magnetism linear motor with clamped function, it is characterized in that these linear electric motors comprise elementary iron core (2), primary coil (3), permanent magnet (8), secondary non magnetic axle (9), described elementary iron core (2), primary coil (3), permanent magnet (8), secondary non magnetic axle (9) ecto-entad is arranged in order, described primary coil (3) is wound in the groove of described elementary iron core (2), described non magnetic axle (9) supports permanent magnets (8) and interior iron core (7), air gap (4) is the air air gap between elementary and secondary, interior iron core (7) upward and with the upper end of permanent magnet (8) is close to for being fixed on secondary non magnetic axle (9), and outer iron core (6) is for being fixed on the iron core on the casing (1); Gone up coiling coil (5) at described iron core (6), when adhesive, can increase suction in the coil (5) during galvanization, quickened adhesive, and play positioning action iron core (7); During disconnection, weaken axial magnetic field when leading to reverse current, quicken circuit breaker and separate.
2. the permanent-magnetism linear motor with clamped function according to claim 1 is characterized in that described permanent magnet (8) is made up of a plurality of single permanent magnet sequence arrangement, and magnetic line of force direction is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010595115 CN102005895A (en) | 2010-12-20 | 2010-12-20 | Permanent magnet linear motor with clamping function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010595115 CN102005895A (en) | 2010-12-20 | 2010-12-20 | Permanent magnet linear motor with clamping function |
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| Publication Number | Publication Date |
|---|---|
| CN102005895A true CN102005895A (en) | 2011-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010595115 Pending CN102005895A (en) | 2010-12-20 | 2010-12-20 | Permanent magnet linear motor with clamping function |
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| CN (1) | CN102005895A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157309A (en) * | 2011-04-20 | 2011-08-17 | 东南大学 | Long-stroke linear permanent magnet motor operation mechanism of high-voltage breaker |
| CN102157310A (en) * | 2011-04-20 | 2011-08-17 | 东南大学 | Linear permanent magnet motor operating mechanism of high-voltage circuit breaker |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2385420Y (en) * | 1999-04-28 | 2000-06-28 | 鄂明杰 | Permanent-magnetic operating driving mechanism |
| US20040095027A1 (en) * | 2002-11-19 | 2004-05-20 | Michael Berghaus | Linear motor |
| CN101225888A (en) * | 2008-02-04 | 2008-07-23 | 重庆大学 | A Bistable Pulse Solenoid Valve and Its Driving Circuit |
| CN101236856A (en) * | 2008-03-05 | 2008-08-06 | 沈阳工业大学 | Cylindrical Permanent Magnet Linear Motor Operating Mechanism for High Voltage Circuit Breaker |
| CN101459012A (en) * | 2008-12-26 | 2009-06-17 | 沈阳工业大学 | High voltage circuit breaker permanent magnet linear motor operating mechanism |
| CN201956873U (en) * | 2010-12-20 | 2011-08-31 | 东南大学 | Permanent-magnet linear motor with clamping function |
-
2010
- 2010-12-20 CN CN 201010595115 patent/CN102005895A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2385420Y (en) * | 1999-04-28 | 2000-06-28 | 鄂明杰 | Permanent-magnetic operating driving mechanism |
| US20040095027A1 (en) * | 2002-11-19 | 2004-05-20 | Michael Berghaus | Linear motor |
| CN101225888A (en) * | 2008-02-04 | 2008-07-23 | 重庆大学 | A Bistable Pulse Solenoid Valve and Its Driving Circuit |
| CN101236856A (en) * | 2008-03-05 | 2008-08-06 | 沈阳工业大学 | Cylindrical Permanent Magnet Linear Motor Operating Mechanism for High Voltage Circuit Breaker |
| CN101459012A (en) * | 2008-12-26 | 2009-06-17 | 沈阳工业大学 | High voltage circuit breaker permanent magnet linear motor operating mechanism |
| CN201956873U (en) * | 2010-12-20 | 2011-08-31 | 东南大学 | Permanent-magnet linear motor with clamping function |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157309A (en) * | 2011-04-20 | 2011-08-17 | 东南大学 | Long-stroke linear permanent magnet motor operation mechanism of high-voltage breaker |
| CN102157310A (en) * | 2011-04-20 | 2011-08-17 | 东南大学 | Linear permanent magnet motor operating mechanism of high-voltage circuit breaker |
| CN102157309B (en) * | 2011-04-20 | 2013-03-20 | 东南大学 | Long-stroke linear permanent magnet motor operation mechanism of high-voltage breaker |
| CN102157310B (en) * | 2011-04-20 | 2013-04-03 | 东南大学 | Linear permanent magnet motor operating mechanism of high-voltage circuit breaker |
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Application publication date: 20110406 |