CN2796079Y - Permanent magnet mechanism of square permanent magnet mechanism case flat plate permanent magnet - Google Patents
Permanent magnet mechanism of square permanent magnet mechanism case flat plate permanent magnet Download PDFInfo
- Publication number
- CN2796079Y CN2796079Y CN 200520025592 CN200520025592U CN2796079Y CN 2796079 Y CN2796079 Y CN 2796079Y CN 200520025592 CN200520025592 CN 200520025592 CN 200520025592 U CN200520025592 U CN 200520025592U CN 2796079 Y CN2796079 Y CN 2796079Y
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- China
- Prior art keywords
- permanent magnet
- magnet mechanism
- square
- mechanism case
- utility
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- Expired - Fee Related
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Abstract
The utility model relates to a permanent magnet mechanism with a square permanent magnet mechanism case and a flat plate permanent magnet, which comprises a permanent magnet mechanism case, a coil and a movable core arranged in the permanent magnet mechanism case, wherein the section of the permanent magnet mechanism case is designed to be square, and a magnetic conductor of which the section presents a square outside and a round inside is arranged in the permanent magnet mechanism case. A magnetic conductor of which the section presents a square outside and a round inside, a circular separating coil and a closing coil are arranged between the permanent magnet mechanism case and the movable core. A flat plate permanent magnet is fixedly arranged between the permanent magnet mechanism case and the magnetic conductor, and a transmission rod is installed on the movable core. The utility model has the advantages that the volume of the permanent magnet mechanism is more compact, so the usage space of the permanent magnet mechanism in a breaker is saved, and the utilization rate of the magnetic field of the permanent magnet is enhanced; the process is convenient, so the cost of processing is decreased greatly. Thus, the utility model can be widely used for all kinds of vacuum circuit breakers.
Description
Technical field
The utility model belongs to the device for switching field, particularly relates to a kind of permanent magnet mechanism that is used for the dull and stereotyped permanent magnet of square permanent magnet mechanism shell of all kinds of high and low pressure vacuum circuit-breakers.
Background technology
General circular permanent magnetism housing and the arc-shaped permanent magnets of adopting of the permanent magnet mechanism that uses in the high-low pressure circuit breaker in the electric power system at present more, circular permanent magnetism housing more square permanent magnetism housing wasting space under identical magnetic conduction cross section, and arc-shaped permanent magnet surface active polar under identical weight is less than the surface active polar of flat-plate type permanent-magnetic body, and processing is complicated, therefore the corresponding increase of its processing charges is subjected to certain restriction dwindling the circuit breaker volume and reduce on the circuit breaker manufacturing cost; In addition because above-mentioned permanent magnet mechanism complex structure, part are more, so cause its poor stability, maintenance also to strengthen.
Summary of the invention
The utility model provides a kind of simple in structure, permanent magnet mechanism of saving the dull and stereotyped permanent magnet of square permanent magnet mechanism shell of circuit breaker space and cheap high and low pressure vacuum circuit-breaker for solving the technical problem that exists in the known technology.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
The permanent magnet mechanism of the dull and stereotyped permanent magnet of square permanent magnet mechanism shell, comprise permanent magnet mechanism housing, coil and the moving iron core that in the permanent magnet mechanism housing, is provided with, it is characterized in that: described permanent magnet mechanism housing Cross section Design is square, in the permanent magnet mechanism housing, also be provided with the magnetic conductor that its cross section is square-outside and round-inside, between permanent magnet mechanism housing and moving iron core, switching winding and closing coil are installed, be fixed with the flat-plate type permanent-magnetic body between permanent magnet mechanism housing and the magnetic conductor, on moving iron core, drive link be installed.
The utility model can also adopt following technical measures:
Described moving core design is a cylinder.
Described switching winding and closing coil are circular.
Advantage and the good effect that the utlity model has are: because the utility model adopts square permanent-magnet structure housing to substitute circular shell, arc-shaped permanent magnet is designed to flat, so not only make the volume of permanent magnet mechanism compact more, and can also save permanent magnet mechanism taking up room in circuit breaker, also can improve the utilance and the magnetic field induction degree of magnetic field of permanent magnet simultaneously; In addition because the square body permanent magnet mechanism is convenient to processing, so reduced its processing cost significantly.Therefore can be widely used in all kinds of vacuum circuit-breakers supporting for the utility model, released a kind of permanent magnet mechanism of the brand-new dull and stereotyped permanent magnet of square permanent magnet mechanism shell for the vacuum circuit-breaker field.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1.
Among the figure: 1 drive link, 2 moving iron cores, 3 square-outside and round-inside magnetic conductors, 4 dull and stereotyped permanent magnets, 5 permanent magnet mechanism housings, 6 switching windings, 7 closing coils.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1 and Fig. 2, the permanent magnet mechanism of the dull and stereotyped permanent magnet of square permanent magnet mechanism shell, comprise that permanent magnet mechanism housing 5, coil and the cylinder that is that is provided with move iron core 2 in the permanent magnet mechanism housing, described permanent magnet mechanism housing Cross section Design is square, between permanent magnet mechanism housing and moving iron core 2, be provided with the magnetic conductor 3 that its cross section is square-outside and round-inside, circular switching winding 6 and circular closing coil 7 also are installed between permanent magnet mechanism housing 5 and moving iron core 2, be fixed with flat-plate type permanent-magnetic body 4 between permanent magnet mechanism housing and the magnetic conductor 3, on moving iron core 2, drive link 1 be installed.
Operation principle of the present utility model is described below: when the switching winding 6 of permanent magnet mechanism is switched on, the magnetic field that electromagnetic field and dull and stereotyped permanent magnet 4 produces form common return by moving iron core 2 to square-outside and round-inside magnetic conductor 3, get back to moving iron core 2 by dull and stereotyped permanent magnet 4 and permanent magnet mechanism housing 5 again, make iron core 2 move to switching winding 6 one sides, make breaker open operation by drive link 1, after switching winding 6 outages, the magnetic force that is produced by permanent magnet 4 makes circuit breaker remain on gate-dividing state.Otherwise moving iron core 2 moves to closing coil 7 one sides, makes breaker closing by drive link 1, and closing coil 7 outage backs make circuit breaker remain on "on" position by the magnetic force that dull and stereotyped permanent magnet 4 produces.
Claims (3)
1. the permanent magnet mechanism of the dull and stereotyped permanent magnet of a square permanent magnet mechanism shell, comprise permanent magnet mechanism housing, coil and the moving iron core that in the permanent magnet mechanism housing, is provided with, it is characterized in that: described permanent magnet mechanism housing Cross section Design is square, between permanent magnet mechanism housing and moving iron core, be provided with magnetic conductor, switching winding and closing coil that its cross section is square-outside and round-inside, be fixed with the flat-plate type permanent-magnetic body between permanent magnet mechanism housing and the magnetic conductor, on moving iron core, drive link be installed.
2. the permanent magnet mechanism of the dull and stereotyped permanent magnet of square permanent magnet mechanism shell according to claim 1, it is characterized in that: described moving core design is a cylinder.
3. the permanent magnet mechanism of the dull and stereotyped permanent magnet of square permanent magnet mechanism shell according to claim 1 is characterized in that: described switching winding and closing coil are for circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520025592 CN2796079Y (en) | 2005-04-15 | 2005-04-15 | Permanent magnet mechanism of square permanent magnet mechanism case flat plate permanent magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520025592 CN2796079Y (en) | 2005-04-15 | 2005-04-15 | Permanent magnet mechanism of square permanent magnet mechanism case flat plate permanent magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2796079Y true CN2796079Y (en) | 2006-07-12 |
Family
ID=36813830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520025592 Expired - Fee Related CN2796079Y (en) | 2005-04-15 | 2005-04-15 | Permanent magnet mechanism of square permanent magnet mechanism case flat plate permanent magnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2796079Y (en) |
-
2005
- 2005-04-15 CN CN 200520025592 patent/CN2796079Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |