CN104409236A - A retaining force adjustable parallel permanent magnetic actuator - Google Patents
A retaining force adjustable parallel permanent magnetic actuator Download PDFInfo
- Publication number
- CN104409236A CN104409236A CN201410206714.8A CN201410206714A CN104409236A CN 104409236 A CN104409236 A CN 104409236A CN 201410206714 A CN201410206714 A CN 201410206714A CN 104409236 A CN104409236 A CN 104409236A
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- CN
- China
- Prior art keywords
- yoke
- iron core
- permanent
- magnet
- dynamic iron
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- 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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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
- H01H50/40—Branched or multiple-limb main magnetic circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/01—Relays in which the armature is maintained in one position by a permanent magnet and freed by energisation of a coil producing an opposing magnetic field
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
Abstract
The invention discloses a retaining force adjustable parallel permanent magnetic actuator relating to the technical field of a high-voltage electrical apparatus. The retaining force adjustable parallel permanent magnetic actuator includes an upper yoke, self-lubricating bearings, a close-open coil, an ejector pin, a movable iron core, an outer yoke, a permanent magnet, an inner yoke and a lower yoke, and is characterized in that the self-lubricating bearing is embedded to the center hole of each of the upper yoke and the lower yoke, and the upper yoke and the lower yoke are fixed to the reducing outer yoke; the permanent magnet is sealed by a structural adhesive between the outer yoke and the inner yoke which has a chamfer at the lower side; the ejector pin is fixed to the movable iron core having a chamfer and a protrusion at the lower side, and passes through the upper yoke and the lower yoke; and the close-open coil is positioned in an upper cavity of the inner yoke. The close-open speed is improved by the formation of two parallel magnetic paths with the main magnetic path, and the formation of a groove on a face where the upper yoke attracts the movable iron core, and also the energy consumption is reduced and the capacity of the control power supply is reduced. The invention plays a role of improving reliability of the switching device and promoting energy conservation.
Description
Technical field
The present invention relates to the adjustable parallel circuits permanent-magnet manipulating mechanism of a kind of confining force of adapted electric switching system, belong to high voltage electrical apparatus technical field.
Background technology
Along with the development that national intelligent grid is built, the advantage of permanent-magnet manipulating mechanism by its power electronics control aspect and the reliability of transmission aspect, be used widely at adapted electric switching system.But permanent-magnet manipulating mechanism ubiquity two technological deficiencies of adapted electric switching system on market: is in magnetic Circuit Design, do not solve the holdback force of permanent magnetic field to dynamic iron core in the middle of switchgear separating brake process at all, opening velocity can only be improved by increase counteracting spring load or electromagnetic force, energy consumption is higher, controls power supply capacity larger; Two is that the permanent magnet assembling of permanent-magnet manipulating mechanism adopts structure glue sealing technique, the permanent magnetism confining force that after sizing, permanent magnetic field produces is bigger than normal and can not adjust, also need increase counteracting spring load or electromagnetic force to improve opening velocity, energy consumption increases, control power supply capacity increases, these two technological deficiencies directly affect the performance of adapted electric switching system, are also the uneven principal elements of Related product quality in the market.In addition according to " Energy Conservation Law of the People's Republic of China " and country's 12 development plans, energy savings as China's fundamental state policy and strategic choice, relies on scientific and technological advances, and development energy-conserving product is the inexorable trend of social development.
Summary of the invention
The object of the invention is to be to overcome the deficiencies in the prior art and exploitation energy-conserving product, and provide a kind of confining force adjustable parallel circuits permanent-magnet manipulating mechanism.
Technical scheme of the present invention is as follows:
The adjustable parallel circuits permanent-magnet manipulating mechanism of a kind of confining force, comprise upper magnet yoke, self-lubricating bearing, on/off switch coil, push rod, dynamic iron core, outer yoke, permanent magnet, inner yoke and lower yoke, it is characterized in that: the centre bore embedded self-lubricating bearing respectively of upper magnet yoke and lower yoke, and be fastened in the outer yoke of reducing; Permanent magnet has between the inner yoke of a chamfering and outer yoke in below uses structure glue sealing; Push rod is fixed on below to be had on the dynamic iron core of a chamfering and boss, runs through upper magnet yoke and lower yoke; On/off switch coil to be placed in above inner yoke in chamber.
The adhesive face of wherein upper magnet yoke and dynamic iron core has the groove of, width H can according to confining force size variation.
Wherein inner yoke and have fixed air gap L respectively between outer yoke, lower yoke and dynamic iron core, fixed air gap L is 2 ~ 3mm, and inner yoke and the fixed air gap value between outer yoke, lower yoke and dynamic iron core can be inconsistent.
Wherein inner yoke, permanent magnet, upper magnet yoke and dynamic iron core form main magnetic circuit, the magnetic circuit that inner yoke, permanent magnet and outer yoke and lower yoke are formed, and form two parallel circuitses with main magnetic circuit.
Wherein bottom lower yoke with boss, corresponding with the groove of dynamic mandrel lower.
The invention has the beneficial effects as follows: provide a kind of confining force adjustable parallel circuits permanent-magnet manipulating mechanism, adopt two parallel circuitses formed with main magnetic circuit, when switchgear separating brake, changed by magnetic flux, the holdback force of permanent magnetic field to dynamic iron core being reduced greatly, without the need to increasing counteracting spring load or electromagnetic force again to improve opening velocity, reducing energy consumption simultaneously, control the capacity also corresponding minimizing of power supply, have facilitation to raising switchgear reliability and energy-conservation aspect; Utilize the method for recessing on the adhesive face of upper magnet yoke and dynamic iron core, suitable minimizing adhesive face area, permanent magnetism confining force is made to be reduced to required value from bigger than normal, really solve the problem of permanent magnetism confining force and switchgear characteristics match, without the need to increasing counteracting spring load or electromagnetic force again to improve opening velocity, reduce energy consumption, also the corresponding capacity reducing control power supply, also has facilitation to raising switchgear reliability and energy-conservation aspect.In addition, with boss bottom lower yoke, the length of push rod is reduced, and the outer yoke of reducing, all the relative decrease volume of permanent-magnet manipulating mechanism, and then can make switchgear miniaturized, also will have positive meaning to energy savings consumption aspect.
Accompanying drawing explanation
Fig. 1 is the adjustable parallel circuits permanent-magnet manipulating mechanism of confining force analysing and observe and magnetic flux distribution schematic diagram at open position.
Fig. 2 is the adjustable parallel circuits permanent-magnet manipulating mechanism of confining force analysing and observe and magnetic flux distribution schematic diagram at closing position.
Fig. 3 is the adjustable parallel circuits permanent-magnet manipulating mechanism of confining force analysing and observe and magnetic flux distribution schematic diagram in firm point position.
In figure: 1 upper magnet yoke, 2 self-lubricating bearings, 3 on/off switch coils, 4 push rods, 5 dynamic iron core, 6 outer yokes, 7 permanent magnets, 8 inner yokes, 9 lower yokes
Embodiment
As shown in Figure 1, 2, 3, the present invention is the adjustable parallel circuits permanent-magnet manipulating mechanism of a kind of confining force, comprise upper magnet yoke (1), self-lubricating bearing (2), on/off switch coil (3), push rod (4), dynamic iron core (5), outer yoke (6), permanent magnet (7), inner yoke (8) and lower yoke (9), it is characterized in that: the centre bore embedded self-lubricating bearing (2) respectively of upper magnet yoke (1) and lower yoke (9), and be fastened in the outer yoke (6) of reducing; Permanent magnet (7) has between the inner yoke of a chamfering (8) and outer yoke (9) in below uses structure glue sealing; Push rod (4) is fixed on below to be had on the dynamic iron core (5) of a chamfering and boss, runs through upper magnet yoke (1) and lower yoke (9); On/off switch coil (3) is placed in chamber, inner yoke (6) top.
The adhesive face of wherein upper magnet yoke (1) and dynamic iron core (5) has the groove of, width H can according to confining force size variation.
Wherein inner yoke (8) and have fixed air gap L respectively between outer yoke (6), lower yoke (9) and dynamic iron core (5), fixed air gap L is 2 ~ 3mm, and inner yoke (8) and the fixed air gap value between outer yoke (6), lower yoke (9) and dynamic iron core (5) can be inconsistent.
Wherein inner yoke (8), permanent magnet (7), upper magnet yoke (1) and dynamic iron core (5) form main magnetic circuit, the magnetic circuit that inner yoke (8), permanent magnet (7) and outer yoke (6) and lower yoke (9) are formed, forms two parallel circuitses with main magnetic circuit.
Wherein lower yoke (9) bottom is with boss, corresponding with the groove of dynamic iron core (5) bottom.
Operation principle of the present invention is as follows:
The present invention is the adjustable parallel circuits permanent-magnet manipulating mechanism of a kind of confining force, inner yoke (8), the magnetic circuit that permanent magnet (7) and outer yoke (6) and lower yoke (9) are formed, with inner yoke (8), permanent magnet (7), upper magnet yoke (1) and dynamic iron core (5) form main magnetic circuit and form two parallel circuitses, the magnetic flux of permanent magnetic field is mutually changed between main magnetic circuit and parallel circuits, follow Ohm's law and the Kirchhoff's first law of magnetic circuit, the magnetomotive force of permanent magnetic field is constant, magnetic flux and magnetic resistance are inversely, the magnetic flux of permanent magnetic field equals main magnetic circuit magnetic flux and two parallel circuits magnetic flux sums.When permanent-magnet manipulating mechanism is in closing position, main magnetic circuit forms closed magnetic circuit, the magnetic flux of permanent magnetic field is by moving the adhesive face of iron core (5), the powerful confining force produced is greater than switchgear load force, and remain on this position, because the fixing air-gap reluctance of two parallel circuitses is much larger than the ferromagnetic resistance of closed magnetic circuit, most of magnetic flux is mainly distributed in main magnetic circuit, and few part magnetic flux is by two parallel circuitses.During work, when on/off switch coil (3) passes to reverse direct current or reverse impulse instantaneously, the magnetic flux of electromagnetic field superposes with the flux-reversal of permanent magnetic field, counteract the magnetic flux of part by dynamic iron core (5), confining force on iron core (5) adhesive face is reduced, start to move downward lower than moving iron core (5) during switchgear load force, reach just point position, air-gap reluctance between dynamic iron core (5) and upper magnet yoke (1) is greater than two open union magnetic circuits when fixing air-gap reluctance, major part magnetic flux is transferred by two parallel circuitses, and fallen sharply by the magnetic flux of dynamic iron core (5), slacken the holdback force of permanent magnetic field to dynamic iron core, iron core (5) is made to rapidly move to permanent-magnet manipulating mechanism open position, without the need to increasing counteracting spring load or electromagnetic force again, in order to overcome the holdback force of permanent magnetic field to dynamic iron core, improve opening velocity, reduce energy consumption simultaneously, control the capacity also corresponding minimizing of power supply, facilitation is had to raising switchgear reliability and energy-conservation aspect.Again when on/off switch coil (3) passes to forward dc or direct impulse instantaneously, the magnetic flux of electromagnetic field and the equidirectional superposition of the magnetic flux of permanent magnetic field, the suction produced makes iron core (9) overcome switchgear load force to move upward, to dynamic iron core (5) adhesive face respectively with the adhesive face adhesive of upper magnet yoke (1), inner yoke (8), permanent-magnet manipulating mechanism is made to be in closing position, now the magnetic flux major part of permanent magnetic field gets back to main magnetic circuit again, and pole is at least partially through parallel circuits.
The present invention is the adjustable parallel circuits permanent-magnet manipulating mechanism of a kind of confining force, when the permanent magnetism confining force recorded after permanent-magnet manipulating mechanism prepackage is greater than required value, according to maxwell's suction formula, permanent magnetism confining force is directly proportional to adhesive face area, only dynamic iron core (5) adhesive face need will process the groove of a proper width, reduce the area in adhesive face, after being assembled again by permanent-magnet manipulating mechanism, permanent magnetism confining force can be made to reach required value.The real like this problem solving permanent magnetism confining force and switchgear characteristics match, without the need to increasing counteracting spring load or electromagnetic force again in order to overcome too much permanent magnetism confining force, improve opening velocity, reduce energy consumption, also the corresponding capacity reducing control power supply, also has facilitation to raising switchgear reliability and energy-conservation aspect.
The above is the preferred embodiment of the present invention, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, as the groove on the adhesive face of upper magnet yoke (1) and dynamic iron core (5), also can only at upper magnet yoke (1) or dynamic iron core (5) is upper arranges; Form two parallel circuitses with main magnetic circuit, also one of two parallel circuitses can only form a parallel circuits etc. with main magnetic circuit, all should be considered as protection scope of the present invention.
Claims (5)
1. the adjustable parallel circuits permanent-magnet manipulating mechanism of confining force, comprise upper magnet yoke (1), self-lubricating bearing (2), on/off switch coil (3), push rod (4), dynamic iron core (5), outer yoke (6), permanent magnet (7), inner yoke (8) and lower yoke (9), it is characterized in that: the centre bore embedded self-lubricating bearing (2) respectively of upper magnet yoke (1) and lower yoke (9), and be fastened in the outer yoke (6) of reducing; Permanent magnet (7) has between the inner yoke of a chamfering (8) and outer yoke (9) in below uses structure glue sealing; Push rod (4) is fixed on below to be had on the dynamic iron core (5) of a chamfering and boss, runs through upper magnet yoke (1) and lower yoke (9); On/off switch coil (3) is placed in chamber, inner yoke (6) top.
2. the adjustable parallel circuits permanent-magnet manipulating mechanism of a kind of confining force according to claim 1, it is characterized in that: the adhesive face of upper magnet yoke (1) and dynamic iron core (5) has the groove of, width H can according to confining force size variation.
3. the adjustable parallel circuits permanent-magnet manipulating mechanism of a kind of confining force according to claim 1, it is characterized in that: inner yoke (8) and have fixed air gap L respectively between outer yoke (6), lower yoke (9) and dynamic iron core (5), fixed air gap L is 2 ~ 3mm, and inner yoke (8) and the fixed air gap value between outer yoke (6), lower yoke (9) and dynamic iron core (5) can be inconsistent.
4. the adjustable parallel circuits permanent-magnet manipulating mechanism of a kind of confining force according to claim 1, it is characterized in that: inner yoke (8), permanent magnet (7), upper magnet yoke (1) and dynamic iron core (5) form main magnetic circuit, the magnetic circuit that inner yoke (8), permanent magnet (7) and outer yoke (6) and lower yoke (9) are formed, forms two parallel circuitses with main magnetic circuit.
5. the adjustable parallel circuits permanent-magnet manipulating mechanism of a kind of confining force according to claim 1, is characterized in that: lower yoke (9) bottom is with boss, corresponding with the groove of dynamic iron core (5) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410206714.8A CN104409236A (en) | 2014-05-15 | 2014-05-15 | A retaining force adjustable parallel permanent magnetic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410206714.8A CN104409236A (en) | 2014-05-15 | 2014-05-15 | A retaining force adjustable parallel permanent magnetic actuator |
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| Publication Number | Publication Date |
|---|---|
| CN104409236A true CN104409236A (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410206714.8A Pending CN104409236A (en) | 2014-05-15 | 2014-05-15 | A retaining force adjustable parallel permanent magnetic actuator |
Country Status (1)
| Country | Link |
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| CN (1) | CN104409236A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107527769A (en) * | 2016-06-17 | 2017-12-29 | 松下知识产权经营株式会社 | Electromagnet apparatus and the electromagnetic relay for being equipped with the electromagnet apparatus |
| CN107578949A (en) * | 2017-09-26 | 2018-01-12 | 日新恒通电气有限公司 | A kind of vacuum circuit breaker permanent magnetic mechanism |
| CN107968026A (en) * | 2016-10-20 | 2018-04-27 | 浙江乾纳电气有限公司 | A kind of adjustable electromagnetic release |
| CN109524255A (en) * | 2019-01-04 | 2019-03-26 | 扬州新概念电气有限公司 | A kind of bistable-state permanent magnet mechanism with double stress surfaces |
| CN110131467A (en) * | 2019-06-06 | 2019-08-16 | 福建洁博利厨卫科技有限公司 | A kind of bistable electromagnetic valve and induction discharging device |
| CN116313580A (en) * | 2023-05-15 | 2023-06-23 | 深圳市国立智能电力科技有限公司 | Permanent magnet mechanism |
| WO2023246667A1 (en) * | 2022-06-23 | 2023-12-28 | 浙江正泰电器股份有限公司 | Electromagnetic mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2694465Y (en) * | 2004-03-25 | 2005-04-20 | 鞍山市宏源自动化工程有限公司 | Single coil permanent-magnet operating mechanism |
| CN201160032Y (en) * | 2008-02-02 | 2008-12-03 | 苏艳刚 | Air gap-changing magnetic circuit double coil permanent magnet control mechanism |
| CN102214522A (en) * | 2010-04-12 | 2011-10-12 | 王守林 | Permanent magnet operating mechanism with air opening damping device for high-voltage and low-voltage switches |
| CN202008946U (en) * | 2011-04-27 | 2011-10-12 | 许继集团有限公司 | Double-air-gap permanent magnetic operation mechanism for high-voltage switch |
| CN102254716A (en) * | 2011-07-15 | 2011-11-23 | 许继集团有限公司 | High-pressure switch permanent magnet operation mechanism with pull characteristic adjustability |
-
2014
- 2014-05-15 CN CN201410206714.8A patent/CN104409236A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2694465Y (en) * | 2004-03-25 | 2005-04-20 | 鞍山市宏源自动化工程有限公司 | Single coil permanent-magnet operating mechanism |
| CN201160032Y (en) * | 2008-02-02 | 2008-12-03 | 苏艳刚 | Air gap-changing magnetic circuit double coil permanent magnet control mechanism |
| CN102214522A (en) * | 2010-04-12 | 2011-10-12 | 王守林 | Permanent magnet operating mechanism with air opening damping device for high-voltage and low-voltage switches |
| CN202008946U (en) * | 2011-04-27 | 2011-10-12 | 许继集团有限公司 | Double-air-gap permanent magnetic operation mechanism for high-voltage switch |
| CN102254716A (en) * | 2011-07-15 | 2011-11-23 | 许继集团有限公司 | High-pressure switch permanent magnet operation mechanism with pull characteristic adjustability |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107527769A (en) * | 2016-06-17 | 2017-12-29 | 松下知识产权经营株式会社 | Electromagnet apparatus and the electromagnetic relay for being equipped with the electromagnet apparatus |
| CN107968026A (en) * | 2016-10-20 | 2018-04-27 | 浙江乾纳电气有限公司 | A kind of adjustable electromagnetic release |
| CN107578949A (en) * | 2017-09-26 | 2018-01-12 | 日新恒通电气有限公司 | A kind of vacuum circuit breaker permanent magnetic mechanism |
| CN109524255A (en) * | 2019-01-04 | 2019-03-26 | 扬州新概念电气有限公司 | A kind of bistable-state permanent magnet mechanism with double stress surfaces |
| CN110131467A (en) * | 2019-06-06 | 2019-08-16 | 福建洁博利厨卫科技有限公司 | A kind of bistable electromagnetic valve and induction discharging device |
| WO2023246667A1 (en) * | 2022-06-23 | 2023-12-28 | 浙江正泰电器股份有限公司 | Electromagnetic mechanism |
| CN116313580A (en) * | 2023-05-15 | 2023-06-23 | 深圳市国立智能电力科技有限公司 | Permanent magnet mechanism |
| CN116313580B (en) * | 2023-05-15 | 2023-08-15 | 深圳市国立智能电力科技有限公司 | Permanent magnet mechanism |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150311 |
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| RJ01 | Rejection of invention patent application after publication |