CN104392853A - Changing-air-gap magnetic circuit double-coil permanent magnet operation mechanism - Google Patents
Changing-air-gap magnetic circuit double-coil permanent magnet operation mechanism Download PDFInfo
- Publication number
- CN104392853A CN104392853A CN201410061890.7A CN201410061890A CN104392853A CN 104392853 A CN104392853 A CN 104392853A CN 201410061890 A CN201410061890 A CN 201410061890A CN 104392853 A CN104392853 A CN 104392853A
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- China
- Prior art keywords
- yoke
- magnetic circuit
- permanent magnet
- air
- coil
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/163—Details concerning air-gaps, e.g. anti-remanence, damping, anti-corrosion
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/44—Magnetic coils or windings
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
Abstract
The invention relates to a changing-air-gap magnetic circuit double-coil permanent magnet operation mechanism used for a high-low voltage switch of an electric power system. The mechanism comprises an upper magnetic yoke, an outer magnetic yoke, a closing coil, a permanent magnet, an inner magnetic yoke, a moving iron core, a pushrod, a resetting spring, an opening coil and a lower magnetic yoke. The changing-air-gap magnetic circuit double-coil permanent magnet operation mechanism adopts the structure that the double coils are distributed in upper and lower cavities respectively and a changing-air-gap magnetic circuit is formed along the magnetic flux direction of the magnetic circuit, thereby not only preventing short-circuit accidents of the coils and improving service performance of the product, but also reducing starting current of the operation mechanism, reducing the capacity of the control equipment, and saving electric energy consumption.
Description
Technical field
The one that the present invention relates to electric power system high and low voltage switch becomes air-gap magnetic circuit double coil permanent magnet control mechanism.
Background technology
The permanent-magnet manipulating mechanism of current high and low voltage switch mostly adopts single coil structure, though solve two coils chamber mutual inductance problem altogether, avoid producing switching overvoltage, interference and harm are produced to coil itself and other related control device, but when carrying out on/off switch operation, easily there is the short circuit accident that positive-negative power bumps against in coil, reduce the reliability that product uses.The total capacity of installed generator of current China has followed the U.S. closely and has occupied the second in the world, but electric energy is still relatively in short supply, and the sustainable development inevitable requirement of China's economic is energy-conservation; On June 24th, 2007, the Standing Committee of the National People's Congress approved " Energy Conservation Law of the People's Republic of China " revised draft, was clearly fundamental state policy by energy savings; The Seventeenth National Congress of the Communist Party of China held in October, 2007 specify that energy-conservation strategic position in China's socio-economic development further, relies on innovation and technological progress, and new technology, the new product of actively promoting saves energy are imperative.
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 a kind of change air-gap magnetic circuit double coil permanent magnet control mechanism is provided.
Technical scheme of the present invention is as follows:
A kind of change air-gap magnetic circuit double coil permanent magnet control mechanism, comprise upper magnet yoke, outer yoke, closing coil, permanent magnet, inner yoke, dynamic iron core, push rod, back-moving spring, switching winding and lower yoke, it is characterized in that: the top of upper magnet yoke is with a step, and the reeded lower yoke of bottom belt is fastened in outer yoke respectively; The inner yoke of permanent magnet, outer yoke are located, and glued joint integral with inner yoke, outer yoke; Push rod is fastened on the reeded dynamic iron core of side straps, runs through upper magnet yoke and lower yoke; Push rod there is a back-moving spring be clipped between upper magnet yoke and dynamic iron core; Closing coil, switching winding are placed in inner yoke upper and lower two chambeies respectively.
Wherein dynamic iron core is in attracting process, and the air-gap L between inner yoke is by little increase, is formed become air-gap magnetic circuit along magnetic circuit flow direction.
Wherein closing coil, switching winding are placed in inner yoke upper and lower two chambeies respectively, belong to twin coil and divide chamber upper and lower arrangement.
Wherein the top of upper magnet yoke is with a step, and its width is suitable with lower yoke bottom width.
The wherein reeded lower yoke of bottom belt, groove can be annular distribution, also can be spot distribution.
The invention has the beneficial effects as follows: provide a kind of and become air-gap magnetic circuit double coil permanent magnet control mechanism, adopt twin coil to divide the upper and lower arrangement in chamber and formed along magnetic circuit flow direction and become air-gap magnetic circuit, coil is not only avoided to occur short circuit accident, improve the reliability that product uses, and the starting current of operating mechanism can be reduced, reduce control appliance capacity, saves energy consumption.
Accompanying drawing explanation
Fig. 1 becomes air-gap magnetic circuit double coil permanent magnet control mechanism to move the cutaway view of iron core at disconnected position.
Fig. 2 becomes air-gap magnetic circuit double coil permanent magnet control mechanism to move the cutaway view of iron core in attracted position.
In figure: 1 upper magnet yoke, 2 back-moving springs, 3 push rods, 4 outer yokes, 5 closing coils, 6 permanent magnets, 7 switching windings, 8 inner yokes, 9 dynamic iron core, 10 lower yokes
Embodiment
As shown in Figure 1, 2, the present invention is a kind of change air-gap magnetic circuit double coil permanent magnet control mechanism, comprise upper magnet yoke (1), outer yoke (4), closing coil (5), permanent magnet (6), inner yoke (8), dynamic iron core (9), push rod (3), back-moving spring (2), switching winding (7) and lower yoke (10), it is characterized in that: the top of upper magnet yoke (1) is with a step, and the reeded lower yoke of bottom belt (10) is fastened on (4) in outer yoke respectively; Permanent magnet (6) inner yoke (8), outer yoke (4) are located, and glued joint integral with inner yoke (8), outer yoke (4); Push rod (3) is fastened on the dynamic iron core (9) of side straps groove, runs through upper magnet yoke (1) and lower yoke (10); Push rod (3) there is a back-moving spring (2) be clipped between upper magnet yoke (1) and dynamic iron core (9); Closing coil (5), switching winding (7) are placed in inner yoke (8) upper and lower two chambeies respectively.
Wherein dynamic iron core (9) is in attracting process, and the air-gap between inner yoke (8) is by little increase, is formed become air-gap magnetic circuit along magnetic circuit flow direction.Closing coil (5), switching winding (7) are placed in inner yoke (8) upper and lower two chambeies respectively, belong to twin coil and divide chamber upper and lower arrangement.The top of upper magnet yoke (1) is with a step, and its width is suitable with lower yoke bottom width.The reeded lower yoke of bottom belt (10), groove can be annular distribution, also can be spot distribution.
Operation principle of the present invention is as follows:
The present invention is a kind of change air-gap magnetic circuit double coil permanent magnet control mechanism, closing coil (5) and switching winding (7) lay respectively at the both sides of inner yoke (8), forming twin coil divides chamber upper and lower arrangement, and two coils work independently, and do not interfere with each other.Dynamic iron core (9) is in attracting process, and the air-gap L between inner yoke (8) is by little increase, is formed become air-gap magnetic circuit along magnetic circuit flow direction.Such permanent-magnet manipulating mechanism is minimum along the air-gap L of magnetic circuit flow direction in adhesive moment, and the suction of generation is maximum, and starting current drops to minimum, and after arriving closing position, permanent-magnet manipulating mechanism is maximum along the air-gap L of magnetic circuit flow direction, and the confining force of generation is maximum.
During work, when closing coil (5) 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 load force to move upward, to dynamic iron core (9) adhesive face up and down respectively with the adhesive face adhesive of upper magnet yoke (1), inner yoke (8).Now, upper magnet yoke (1), dynamic iron core (9), inner yoke (8), permanent magnet (6) and outer yoke (4) form closed magnetic circuit, the magnetic flux of permanent magnetic field is by moving the adhesive face up and down of iron core (9), produce powerful confining force and be greater than load force, dynamic iron core (9) remains on the stable state of adhesive.When switching winding (7) passes to reverse direct current or reverse impulse instantaneously, the magnetic flux of electromagnetic field superposes with the flux-reversal of permanent magnetic field, fallen sharply by the magnetic flux of dynamic iron core (9), confining force on dynamic iron core (9) adhesive face is lower than load force, and dynamic iron core (9) moves downward the stable state of separating.
Claims (5)
1. one kind becomes air-gap magnetic circuit double coil permanent magnet control mechanism, it comprises upper magnet yoke, outer yoke, closing coil, permanent magnet, inner yoke, dynamic iron core, push rod, back-moving spring, switching winding and lower yoke, it is characterized in that: the top of upper magnet yoke (1) is with a step, and the reeded lower yoke of bottom belt (10) is fastened on (4) in outer yoke respectively; Permanent magnet (6) inner yoke (8), outer yoke (4) are located, and glued joint integral with inner yoke (8), outer yoke (4); Push rod (3) is fastened on the dynamic iron core (9) of side straps groove, runs through upper magnet yoke (1) and lower yoke (10); Push rod (3) there is a back-moving spring (2) be clipped between upper magnet yoke (1) and dynamic iron core (9); Closing coil (5), switching winding (7) are placed in inner yoke (8) upper and lower two chambeies respectively.
2. change air-gap magnetic circuit double coil permanent magnet control mechanism according to claim 1, it is characterized in that: dynamic iron core (9) is in attracting process, with the air-gap between inner yoke (8) is by little increase, is formed along magnetic circuit flow direction and become air-gap magnetic circuit.
3. according to claim 1 without spring permanent magnetism indoor high-voltage vacuum circuit breaker, it is characterized in that: closing coil (5), switching winding (7) are placed in inner yoke (8) upper and lower two chambeies respectively, belong to twin coil and divide chamber upper and lower arrangement.
4. change air-gap magnetic circuit double coil permanent magnet control mechanism according to claim 1, is characterized in that: the top of upper magnet yoke (1) is with a step, and its width is suitable with lower yoke bottom width.
5. change air-gap magnetic circuit double coil permanent magnet control mechanism according to claim 1, it is characterized in that: the reeded lower yoke of bottom belt (10), groove can be annular distribution, also can be spot distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410061890.7A CN104392853A (en) | 2014-02-24 | 2014-02-24 | Changing-air-gap magnetic circuit double-coil permanent magnet operation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410061890.7A CN104392853A (en) | 2014-02-24 | 2014-02-24 | Changing-air-gap magnetic circuit double-coil permanent magnet operation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104392853A true CN104392853A (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410061890.7A Pending CN104392853A (en) | 2014-02-24 | 2014-02-24 | Changing-air-gap magnetic circuit double-coil permanent magnet operation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104392853A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106449277A (en) * | 2016-10-28 | 2017-02-22 | 游民 | Self-closing magnetic circuit permanent magnetic mechanism for switch |
| CN114242533A (en) * | 2021-12-31 | 2022-03-25 | 江苏省如高高压电器有限公司 | Permanent magnet mechanism for direct current air circuit breaker |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201160032Y (en) * | 2008-02-02 | 2008-12-03 | 苏艳刚 | Air gap-changing magnetic circuit double coil permanent magnet control mechanism |
| WO2012165433A1 (en) * | 2011-05-31 | 2012-12-06 | オムロン株式会社 | Electromagnetic relay |
| CN203134717U (en) * | 2013-03-29 | 2013-08-14 | 厦门宏发电力电器有限公司 | Magnetic retaining relay with asymmetrical solenoid-type structure |
-
2014
- 2014-02-24 CN CN201410061890.7A patent/CN104392853A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201160032Y (en) * | 2008-02-02 | 2008-12-03 | 苏艳刚 | Air gap-changing magnetic circuit double coil permanent magnet control mechanism |
| WO2012165433A1 (en) * | 2011-05-31 | 2012-12-06 | オムロン株式会社 | Electromagnetic relay |
| CN203134717U (en) * | 2013-03-29 | 2013-08-14 | 厦门宏发电力电器有限公司 | Magnetic retaining relay with asymmetrical solenoid-type structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106449277A (en) * | 2016-10-28 | 2017-02-22 | 游民 | Self-closing magnetic circuit permanent magnetic mechanism for switch |
| CN114242533A (en) * | 2021-12-31 | 2022-03-25 | 江苏省如高高压电器有限公司 | Permanent magnet mechanism for direct current air circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: Su Yangang Document name: Notification of Passing Preliminary Examination of the Application for Invention |
|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Su Yangang Document name: Notification of Publication and of Entering the Substantive Examination Stage of the Application for Invention |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150304 |