CN207731887U - A kind of permanent magnet mechanism - Google Patents
A kind of permanent magnet mechanism Download PDFInfo
- Publication number
- CN207731887U CN207731887U CN201820034988.7U CN201820034988U CN207731887U CN 207731887 U CN207731887 U CN 207731887U CN 201820034988 U CN201820034988 U CN 201820034988U CN 207731887 U CN207731887 U CN 207731887U
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- China
- Prior art keywords
- iron core
- dynamic iron
- operating position
- permanent magnet
- coil
- 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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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/32—Electromagnetic mechanisms having permanently magnetised part
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H71/68—Power reset mechanisms actuated by electromagnet
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
Abstract
The utility model discloses a kind of permanent magnet mechanism, including stator yoke, dynamic iron core, drive rod and permanent magnet, the stator yoke includes shell, upper end cover and bottom end cover；Coil, the first coil, the second coil, lower coil, the first magnetic guiding loop and the second magnetic guiding loop are equipped in the shell；The dynamic iron core is arranged in the shell in which can move up and down, and dynamic iron core is relative to specific first operating position of shell, the second operating position and third operating position.The utility model can move to the first operating position respectively by coil power control dynamic iron core by second, third operating position；The case where being not in dynamic iron core hyperkinesia, performance are stablized, and failure rate is low；And when moving, the pulling direction for the magnetic force that dynamic iron core is subject to is consistent with moving direction, and movement speed is fast, and Switch of working position is rapid, and work efficiency is high.
Description
Technical field
The utility model belongs to electrical equipment technical field more particularly to a kind of permanent magnet mechanism.
Background technology
Chinese patent CN102789928B discloses one kind《Driving mechanism》, including static iron core, dynamic iron core, upper driving line
Circle, permanent magnet and lower driving coil, dynamic iron core is mobile to be arranged in the dynamic iron core mobile space and with the first work
Position, the second operating position and third operating position.There are two permanent magnet mechanism substantially driving coils under this kind of structure, moves
Iron core is by same by the first operating position to the second operating position by third operating position to the first operating position and dynamic iron core
A coil drive, this can the following situation of outlet：Dynamic iron core, to the first operating position, is to make driving coil by third operating position
Be powered generate electromagnetic force, driving dynamic iron core movement, when dynamic iron core reach the first operating position when, only permanent magnet generate suction
Dynamic iron core is prevented to continue to move ahead, the electromagnetic force and inertia force that driving coil generates still drive dynamic iron core to continue to move ahead, so, it moves
Iron core is easy to cross through second operating position in the first operating position.Similar, when dynamic iron core is by the second operating position to
When one operating position, it is also possible to which dynamic iron core crosses the through third operating position in the first operating position.
And then the stability of permanent magnet mechanism is poor, when dynamic iron core is moved to the first operating position by the second operating position,
Easily there is the case where dynamic iron core first motion to third operating position；Or when dynamic iron core is moved to by third operating position
When one operating position, easily there is the case where dynamic iron core first motion to the second operating position, makes to influence the normal of equipment
With, or even bring prodigious harm.
Utility model content
In view of the above-mentioned problems, the utility model provides the permanent magnet mechanism that a kind of performance is stable, failure rate is low.
To achieve the goals above, the utility model uses following technical scheme：A kind of permanent magnet mechanism, including stator magnet
Yoke, dynamic iron core, drive rod and permanent magnet, the stator yoke include shell, upper end cover and bottom end cover；It is equipped in the shell upper
It coil, the first coil, the second coil, lower coil, the first magnetic guiding loop between coil and the first coil and sets
The second magnetic guiding loop between the second coil and lower coil；The dynamic iron core navigates in the shell in which can move up and down,
And dynamic iron core has the first operating position, the second operating position and third operating position relative to shell；
When dynamic iron core is in the first operating position, the permanent magnet, dynamic iron core, the first magnetic guiding loop, shell form first
Magnetic circuit；The permanent magnet, dynamic iron core, the second magnetic guiding loop, shell form the second magnetic circuit, are stable states；
When dynamic iron core is in the second operating position, the permanent magnet, dynamic iron core, upper end cover, shell form third magnetic circuit,
It is stable state；
When dynamic iron core is in third operating position, the permanent magnet, dynamic iron core, bottom end cover, shell form the 4th magnetic circuit,
It is stable state；
When first coil is powered, the dynamic iron core is moved under the driving of magnetic force by third operating position
One operating position；
When second coil is powered, the dynamic iron core is moved under the driving of magnetic force by the second operating position
One operating position.
Specifically, if dynamic iron core makes first coil be powered, institute by third operating position to the first operating position
It states after dynamic iron core is moved to the first operating position under the driving of magnetic force by third operating position, inertia force can be such that dynamic iron core continues
It moves ahead, but the electromagnetic force of the first coil generation and the suction of permanent magnet all can prevent dynamic iron core from continuing to move ahead, and dynamic iron core is made to stop
In the first operating position；
Similar, if dynamic iron core makes second coil be powered, institute by the second operating position to the first operating position
It states after dynamic iron core is moved to the first operating position under the driving of magnetic force by the second operating position, inertia force can be such that dynamic iron core continues
It moves ahead, but the electromagnetic force of the second coil generation and the suction of permanent magnet all can prevent dynamic iron core from continuing to move ahead, and dynamic iron core is made to stop
In the first operating position.
It is provided with four coils in the utility model, the first work is moved to by other two operating positions in control dynamic iron core
When making position, realized by being powered respectively to two coils, after dynamic iron core is moved to coil position, coil production
The suction of raw electromagnetic force and permanent magnet all can prevent dynamic iron core from continuing to move ahead, into the feelings without dynamic iron core hyperkinesia
Condition, what guarantee dynamic iron core can be stablized rests on the first operating position, and performance is stablized, and failure rate is low.
And when moving, the pulling direction for the magnetic force that dynamic iron core is subject to is consistent with moving direction, compares documents
For middle magnetic force and the moving direction of dynamic iron core are reversed situation, the movement speed of dynamic iron core faster, to three working positions
Switching between setting is more rapid, and work efficiency is high.
Further, the dynamic iron core includes dynamic iron core ontology, the first protrusion on dynamic iron core ontology, the second protrusion
And third protrusion；
When dynamic iron core is in the first operating position, the permanent magnet, the first protrusion, dynamic iron core ontology, the second protrusion,
One magnetic guiding loop, shell form the first magnetic circuit；The permanent magnet, the first protrusion, dynamic iron core ontology, third protrusion, the second magnetic guiding loop,
Shell forms the second magnetic circuit；
When dynamic iron core is in the second operating position, the permanent magnet, third protrusion, dynamic iron core ontology, the second protrusion, on
End cap, shell form third magnetic circuit；
When dynamic iron core is in third operating position, the permanent magnet, the second protrusion, dynamic iron core ontology third protrusion, under
End cap, shell form the 4th magnetic circuit.
Further, second protrusion and third protrusion are symmetricly set on first protrusion both sides；To dynamic iron core
For symmetrical structure, and then the magneticaction being subject on each operating position is more balanced, is further ensured that dynamic iron core can be steady
Surely it is maintained at each operating position.
Further, when the coil is powered, the dynamic iron core is under the electromagnetism power drive that coil generates by
One operating position is moved to the second operating position；Dynamic iron core can quickly move to the second operating position, work under the pulling of magnetic force
Position switch speed is fast, and work efficiency is high.
Further, when the lower coil is powered, the dynamic iron core is under the electromagnetism power drive that lower coil generates by
One operating position is moved to third operating position；Dynamic iron core can quickly move to third operating position, work under the pulling of magnetic force
Position switch speed is fast, and work efficiency is high.
Further, the permanent magnet is set between first coil and the second coil；When dynamic iron core is in
When the first operating position, ensure that permanent magnetism physical efficiency forms the magnetic line of force between the first magnetic guiding loop 15, the second magnetic guiding loop respectively, ensures dynamic
Iron core stabilization rests on the first operating position, and structural stability is strong.
Further, magnetic conduction construction is equipped between the permanent magnet and the dynamic iron core；Permanent magnetism is realized by magnetic conduction construction
Magnetic force between body and dynamic iron core is connected to.
Further, the magnetic conduction construction is magnetic guiding loop.
Preferably, when the dynamic iron core is in the first operating position, the upper end of the dynamic iron core is at least partly penetrated to institute
It states in coil, the lower end of the dynamic iron core is at least partly penetrated to the lower coil；In this way when dynamic iron core is by the first work
Either working the starting current of coil or lower coil when converting to third to the second work can be much lower, energy-saving consumption-reducing.
In conclusion the utility model has the beneficial effects that：It can be by coil power control dynamic iron core by second, third
Operating position moves to the first operating position respectively；The case where being not in dynamic iron core hyperkinesia, ensures that dynamic iron core can be steady
It is fixed reliably to rest on the first operating position.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is structural schematic diagram when the utility model dynamic iron core is in the first operating position.
Fig. 3 is structural schematic diagram when the utility model dynamic iron core is in the second operating position.
Fig. 4 is structural schematic diagram when the utility model dynamic iron core is in third operating position.
Specific implementation mode
In order to make those skilled in the art be better understood from the utility model, below in conjunction with the utility model reality
The attached drawing in example is applied, clear, complete description is carried out to the technical scheme in the embodiment of the utility model.
As shown in Figs 1-4, a kind of permanent magnet mechanism, including stator yoke, dynamic iron core 2, drive rod 3 and permanent magnet 4, it is described fixed
Sub- yoke includes shell 1, upper end cover 5 and bottom end cover 6;The fixation of the drive rod 3 is threaded through in the dynamic iron core 2, and drive rod 3
Both ends are pierced by respectively to upper end cover 5 and bottom end cover 6；Coil 11, the first coil 12, the second center line are equipped in the shell 1
Circle 13, lower coil 14, the first magnetic guiding loop 15 between coil and the first coil and set on the second coil with it is offline
The second magnetic guiding loop 16 between circle；The permanent magnet 4 is set between first coil, 12 and second coil 13, and described
Magnetic conduction construction 7 is equipped between permanent magnet 4 and the dynamic iron core 2, specifically, the magnetic conduction construction 7 is magnetic guiding loop；Shape in the shell
At cylindrical space, the dynamic iron core 2 is arranged in the cylindrical space in which can move up and down, and dynamic iron core 2 is relative to shell
1 specific first operating position of body, the second operating position and third operating position.
Preferably, the dynamic iron core 2 includes dynamic iron core ontology 21, the first protrusion 22 on dynamic iron core ontology, the
Two protrusions 23 and third protrusion 24；First protrusion 22, the second protrusion 23 and third protrusion 24 with the dynamic iron core ontology
21 integrated moldings are made, and are directed out and are extended to form by the side wall of dynamic iron core ontology 21；Further, first protrusion 22
Between the second protrusion 23 and third protrusion 24, and the second protrusion 23 and third protrusion 24 are convex to be symmetricly set on described first
On 22 both sides of portion so that dynamic iron core generally symmetrical structure.
As shown in Fig. 2, dynamic iron core is in the first operating position at this time, the first protrusion 22 and 7 mutual pairing of magnetic conduction construction (
Pairing herein can be fitting, coincidence, actuation or cooperation, and the description being hereinafter related to also is same looks like), it is described
Second protrusion 23 and first magnetic guiding loop, 15 mutual pairing, the third protrusion 24 are mutually right with second magnetic guiding loop 16
It closes；And the upper end of the dynamic iron core 2 is at least partly penetrated to the coil 11, the lower end of the dynamic iron core 2 is at least partly
It penetrates to the lower coil 14；So that permanent magnet 4, magnetic conduction construction 7, the first protrusion 22, dynamic iron core ontology 21, second are convex
Portion 23, the first magnetic guiding loop 15, shell 1 form closed first magnetic circuit；The permanent magnet 4, the first protrusion 22, moves magnetic conduction construction 7
Core body 21, third protrusion 24, the second magnetic guiding loop 16, shell 1 form closed second magnetic circuit, and dynamic iron core 2 is stablized the
On one operating position（Lines in figure are the magnetic line of force）.
As shown in figure 3, dynamic iron core is in the second operating position, the second protrusion 23 and 5 mutual pairing of upper end cover at this time, it is described
Third protrusion 24 and the mutual pairing of magnetic conduction construction；To permanent magnet 4, magnetic conduction construction 7, third protrusion 24, dynamic iron core ontology 21, the
Two protrusions 23, upper end cover 5, shell 1 form closed third magnetic circuit, and dynamic iron core 2 is stablized on the second operating position（In figure
Lines are the magnetic line of force）.
As shown in figure 4, when dynamic iron core 2 is in third operating position, the third protrusion 24 is mutually right with bottom end cover 6
It closes, second protrusion 23 and 7 mutual pairing of magnetic conduction construction；So that permanent magnet 4, magnetic conduction construction 7, the second protrusion 23, dynamic
Core body 21, third protrusion 24, bottom end cover 6, shell 1 form closed 4th magnetic circuit, and dynamic iron core 2 is stablized and is worked in third
On position（Lines in figure are the magnetic line of force）.
When dynamic iron core needs are moved to by the first operating position on the second operating position, control coil 11 is powered, on
The magnetic line of force direction of the magnetic line of force and permanent magnet that coil 11 generates is on the contrary, when the magnetic force that coil 11 generates is produced more than permanent magnet 4
When raw magnetic force, dynamic iron moves upwards arrival upper end cover, and coil 11 powers off；The magnetic force that permanent magnet 4 generates at this time passes through magnetic conduction
Structure 7, dynamic iron core 2, upper end cover 5, shell 1 are formed into a loop, and reach stable state.
When dynamic iron core needs are returned to by the second operating position on the first operating position, the second coil 13 of control is powered,
The magnetic force that second coil 13 generates is with the magnetic line of force direction with permanent magnet on the contrary, when the magnetic force that the second coil 13 generates is more than
When the magnetic force that permanent magnet 4 generates, dynamic iron moves back down to the first operating position, the power-off of the second coil 13；Dynamic iron core is convex
The magnetic boots in portion can look for most stable of state automatically to be stopped, and the magnetic force that permanent magnet 4 generates at this time is by magnetic conduction construction 7, dynamic iron core
2, the first magnetic guiding loop 15, shell 1 form the first circuit, are formed by magnetic conduction construction 7, dynamic iron core 2, the second magnetic guiding loop 16, shell 1
First circuit, reaches stable state.
When dynamic iron core needs are returned to by the first operating position on third operating position, control lower coil 14 is powered, offline
The magnetic force that circle 14 generates is with the magnetic line of force direction with permanent magnet on the contrary, when the magnetic force that lower coil 14 generates is generated more than permanent magnet 4
Magnetic force when, dynamic iron move downward reach bottom end cover 6, lower coil 14 power off；The magnetic force that permanent magnet 4 generates at this time passes through magnetic conduction knot
Structure 7, dynamic iron core 2, bottom end cover 6, shell 1 are formed into a loop, and reach stable state.
When dynamic iron core needs are returned to by third operating position on the first operating position, the first coil 12 of control is powered,
The magnetic force that first coil 12 generates is with the magnetic line of force direction with permanent magnet on the contrary, when the magnetic force that the first coil 12 generates is more than
When the magnetic force that permanent magnet 4 generates, dynamic iron, which moves upwards, returns to the first operating position, the power-off of the first coil 12；Dynamic iron core is convex
The magnetic boots in portion can look for most stable of state automatically to be stopped, and the magnetic force that permanent magnet 4 generates at this time is by magnetic conduction construction 7, dynamic iron core
2, the first magnetic guiding loop 15, shell 1 form the first circuit, are formed by magnetic conduction construction 7, dynamic iron core 2, the second magnetic guiding loop 16, shell 1
First circuit, reaches stable state.
Obviously, described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.
It is obtained by those of ordinary skill in the art without making creative efforts based on the embodiments of the present invention
Every other embodiment should all belong to the range of the utility model protection.
Claims (9)
1. a kind of permanent magnet mechanism, including stator yoke, dynamic iron core（2）, drive rod（3）And permanent magnet（4）, the stator yoke packet
Include shell（1）, upper end cover（5）And bottom end cover（6）;It is characterized in that：The shell（1）It is interior to be equipped with coil（11）, in first
Coil（12）, the second coil（13）, lower coil（14）, the first magnetic guiding loop（15）And second magnetic guiding loop（16）；The dynamic iron core
（2）It is arranged in the shell with can moving up and down（1）It is interior, and dynamic iron core（2）Relative to shell（1）With the first operating position,
Second operating position and third operating position；
When dynamic iron core is in the first operating position, the permanent magnet（4）, dynamic iron core（2）, the first magnetic guiding loop（15）, shell shape
At the first magnetic circuit；The permanent magnet（4）, dynamic iron core（2）, the second magnetic guiding loop（16）, shell（1）Form the second magnetic circuit；
When dynamic iron core is in the second operating position, the permanent magnet（4）, dynamic iron core（2）, upper end cover（5）, shell（1）It is formed
Third magnetic circuit；
When dynamic iron core is in third operating position, the permanent magnet（4）, dynamic iron core（2）, bottom end cover（6）, shell（1）It is formed
4th magnetic circuit；
When first coil（13）When energization, the dynamic iron core（2）It is moved by third operating position under the driving of magnetic force
To the first operating position；
When second coil（14）When energization, the dynamic iron core（2）It is moved by the second operating position under the driving of magnetic force
To the first operating position.
2. permanent magnet mechanism according to claim 1, it is characterised in that：The dynamic iron core（2）Including dynamic iron core ontology（21）、
The first protrusion on dynamic iron core ontology（22）, the second protrusion（23）And third protrusion（24）；
When dynamic iron core is in the first operating position, the permanent magnet（4）, the first protrusion（22）, the second protrusion（23）, first lead
Magnet ring（15）, shell（1）Form the first magnetic circuit；The permanent magnet（4）, the first protrusion（22）, third protrusion（24）, the second magnetic conduction
Ring（16）, shell（1）Form the second magnetic circuit；
When dynamic iron core is in the second operating position, the permanent magnet（4）, third protrusion（24）, the second protrusion（23）, upper end cover
（5）, shell（1）Form third magnetic circuit；
When dynamic iron core is in third operating position, the permanent magnet（4）, the second protrusion（23）, third protrusion（24）, bottom end cover
（6）, shell（1）Form the 4th magnetic circuit.
3. permanent magnet mechanism according to claim 1 or 2, it is characterised in that：Second protrusion（23）With third protrusion
（24）It is symmetricly set on first protrusion（22）Both sides.
4. permanent magnet mechanism according to claim 1 or 2, it is characterised in that：When the coil（11）It is described dynamic when energization
Iron core（2）The second operating position is moved to by the first operating position under the driving of magnetic force.
5. permanent magnet mechanism according to claim 1 or 2, it is characterised in that：When the lower coil（14）It is described dynamic when energization
Iron core（2）Third operating position is moved to by the first operating position under the driving of magnetic force.
6. permanent magnet mechanism according to claim 1 or 2, it is characterised in that：The permanent magnet（4）Set on first center line
Circle（12）With the second coil（13）Between.
7. permanent magnet mechanism according to claim 1 or 2, it is characterised in that：The permanent magnet（4）With the dynamic iron core（2）
Between be equipped with magnetic conduction construction（7）.
8. permanent magnet mechanism according to claim 7, it is characterised in that：The magnetic conduction construction（7）For magnetic guiding loop.
9. permanent magnet mechanism according to claim 1, it is characterised in that：The dynamic iron core（2）When in the first operating position,
The dynamic iron core（2）Upper end at least partly penetrate to the coil（11）It is interior, the dynamic iron core（2）Lower end at least partly
It penetrates to the lower coil（14）It is interior.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018200213302 | 2018-01-07 | ||
| CN201820021330 | 2018-01-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207731887U true CN207731887U (en) | 2018-08-14 |
Family
ID=62461061
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810020160.0A Pending CN108155076A (en) | 2018-01-07 | 2018-01-09 | A kind of permanent magnet mechanism |
| CN201820034988.7U Expired - Fee Related CN207731887U (en) | 2018-01-07 | 2018-01-09 | A kind of permanent magnet mechanism |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810020160.0A Pending CN108155076A (en) | 2018-01-07 | 2018-01-09 | A kind of permanent magnet mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN108155076A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155076A (en) * | 2018-01-07 | 2018-06-12 | 浙江宝威电气有限公司 | A kind of permanent magnet mechanism |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789318B (en) * | 2010-03-30 | 2012-05-23 | 西安交通大学 | Novel bistable permanent magnetic actuator capable of increasing instantaneous opening speed |
| CN102610407B (en) * | 2011-11-25 | 2014-10-01 | 中国西电电气股份有限公司 | Three-station bistable permanent magnet mechanism |
| CN102789928B (en) * | 2012-07-27 | 2015-05-13 | 北京电研华源电力技术有限公司 | Driving mechanism |
| CN102983017A (en) * | 2012-11-27 | 2013-03-20 | 北京电研华源电力技术有限公司 | Three-position switch |
| CN205645579U (en) * | 2016-04-18 | 2016-10-12 | 泉州亿兴电力有限公司 | Three -stable state permanent magnetic mechanism |
| CN108155076A (en) * | 2018-01-07 | 2018-06-12 | 浙江宝威电气有限公司 | A kind of permanent magnet mechanism |
-
2018
- 2018-01-09 CN CN201810020160.0A patent/CN108155076A/en active Pending
- 2018-01-09 CN CN201820034988.7U patent/CN207731887U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155076A (en) * | 2018-01-07 | 2018-06-12 | 浙江宝威电气有限公司 | A kind of permanent magnet mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108155076A (en) | 2018-06-12 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180814 Termination date: 20220109 |
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| CF01 | Termination of patent right due to non-payment of annual fee |