CN209544238U - A kind of permanent magnet mechanism and vacuum circuit breaker - Google Patents
A kind of permanent magnet mechanism and vacuum circuit breaker Download PDFInfo
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- CN209544238U CN209544238U CN201920102461.8U CN201920102461U CN209544238U CN 209544238 U CN209544238 U CN 209544238U CN 201920102461 U CN201920102461 U CN 201920102461U CN 209544238 U CN209544238 U CN 209544238U
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- iron core
- permanent magnet
- dynamic iron
- stroke
- drive shaft
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Abstract
The utility model discloses a kind of permanent magnet mechanism, including fixed frame, drive shaft and the dynamic iron core being arranged on fixed frame and electromagnetism are attracted component, drive shaft is actively located in fixed frame, dynamic iron core and electromagnetism are attracted component, electromagnetism is attracted component for being attracted dynamic iron core, the locating part for preventing dynamic iron core to be detached from is provided in drive shaft, shoulder is provided in drive shaft, dynamic iron core and electromagnetism are attracted the two sides that component is located at shoulder, excess of stroke spring and tripping spring are provided in drive shaft, the both ends of excess of stroke spring are connected with dynamic iron core and shoulder respectively, component is attracted with electromagnetism respectively for the both ends of tripping spring and shoulder connects.The utility model is provided with shoulder on the driving shaft, and excess of stroke spring and tripping spring are separately positioned on shoulder two sides, avoids external spring in permanent magnet mechanism, is conducive to the volume for reducing permanent magnet mechanism.
Description
Technical field
The utility model relates to field of electrical equipment, and in particular to a kind of permanent magnet mechanism and vacuum circuit breaker.
Background technique
Currently, in high-voltage switch gear field, there are the vacuum circuit breaker permanent magnetic mechanism of many different structures, wherein monostable is forever
Spring point in magnetic mechanism or less is several: excess of stroke spring and tripping spring series connection, excess of stroke spring and tripping spring parallel connection, excess of stroke bullet
Spring is external etc. several, but spring, outside mechanism, this must will increase the overall dimensions of mechanism.In order to reduce the land occupation of switchgear
Area saves precious land resource, requires its outer dimension the smaller the better under the premise of meeting switchgear function.And portion
Divide intrinsic opening time≤5ms of grid requirements switch, when in order to transformer failure, cutting is electric in the shortest time
Road prevents the generation of the accidents such as Explosion of Transformer.
Summary of the invention
In view of the deficiencies of the prior art, one of the purpose of this utility model is to provide a kind of permanent magnet mechanism, reduces permanent magnetism
The volume of mechanism.
The content of the utility model is as follows:
A kind of permanent magnet mechanism is attracted including fixed frame, drive shaft and the dynamic iron core being arranged on fixed frame and electromagnetism
Component, drive shaft are actively located in fixed frame, dynamic iron core and electromagnetism and are attracted component, and electromagnetism is attracted component and is used to be attracted dynamic iron core,
Be provided with the locating part for preventing dynamic iron core to be detached from the drive shaft, be provided with shoulder in the drive shaft, the dynamic iron core and
The electromagnetism is attracted the two sides that component is located at shoulder, is provided with excess of stroke spring and tripping spring, the excess of stroke in the drive shaft
The both ends of spring are connected with the dynamic iron core and shoulder respectively, and the both ends of tripping spring are attracted component with the electromagnetism respectively
It is connected with shoulder.
Preferably, it includes static iron core, permanent magnet and coil windings that the electromagnetism, which is attracted component, and the drive shaft activity is worn
In static iron core, permanent magnet surrounds the outside that static iron core is arranged in, and coil windings are set on static iron core.
Preferably, first chamber is provided in the dynamic iron core, the excess of stroke spring is arranged in first chamber.
Preferably, second chamber is provided on the static iron core, the tripping spring is arranged in the second chamber.
Preferably, the first copper sheathing is provided between the drive shaft and the dynamic iron core.
Preferably, the dynamic iron core is defined as first stroke, the drive in the stroke that the electromagnetism is attracted under component effect
Stroke of the moving axis under the action of dynamic iron core is defined as second stroke, and first stroke is greater than second stroke.
The two of the purpose of this utility model are to provide a kind of vacuum circuit breaker, are meeting the same of vacuum circuit breaker function
When, reduce the volume of vacuum circuit breaker.
The utility model also provides a kind of vacuum circuit breaker, including bracket and the insulated pull rod being arranged on bracket,
Vacuum interrupter and operating shaft, further include above-mentioned permanent magnet mechanism, and one end of permanent magnet mechanism passes through insulated pull rod and vacuum extinction
The moved end of room connects, and the moved end of vacuum interrupter is also connected with the first lead-out wire row, and the static side of vacuum interrupter is connected with second
Lead-out wire row, is provided with disconnecting link in operating shaft, and operating shaft side is provided with ground lead row, operating shaft and by disconnecting link respectively with
Second lead-out wire row and ground lead row are flexibly connected.
The utility model has the following beneficial effects: the utility model is provided with shoulder on the driving shaft, and by excess of stroke spring and
Tripping spring is separately positioned on shoulder two sides, avoids external spring in permanent magnet mechanism, is conducive to the volume for reducing permanent magnet mechanism；
The vacuum circuit breaker of the utility model uses the permanent magnet mechanism of the utility model, has both met the function of vacuum circuit breaker
Can, it is also beneficial to reduce the volume of vacuum circuit breaker, reduces the occupied area of vacuum circuit breaker.
Detailed description of the invention
Fig. 1 show the structure chart of the permanent magnet mechanism of the utility model embodiment；
Fig. 2A show the structure chart 1 of the drive shaft of the utility model embodiment；
Fig. 2 B show the structure chart 2 of the drive shaft of the utility model embodiment；
Fig. 3 show the main view of the permanent magnet mechanism of the utility model embodiment；
Fig. 4 A show the cross-sectional view 1 of A-A in Fig. 3；
Fig. 4 B show the cross-sectional view 2 of A-A in Fig. 3；
Fig. 5 show the structure chart of the vacuum circuit breaker of the utility model embodiment.
Specific embodiment
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and being implemented in accordance with the contents of the specification, and in order to allow the above and other purpose, feature of the utility model
It can be more clearly understood with advantage, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
It please refers to Fig. 1-4, a kind of permanent magnet mechanism disclosed in the present embodiment, including fixed frame 1, drive shaft 2 and is respectively provided with
Dynamic iron core 3 and electromagnetism on fixed frame 1 are attracted component, and it includes static iron core 4, permanent magnet 5 and coil windings that electromagnetism, which is attracted component,
6, drive shaft 2 is actively located in static iron core 4, and permanent magnet 5 surrounds the outside that static iron core 4 is arranged in, and coil windings 6 are set in quiet iron
On core 4, dynamic iron core 3 is arranged above static iron core 4 and activity is inserted in coil windings 6, when in use, coil windings 6 and peripheral hardware
PLC controller be electrically connected.Drive shaft 2 is actively located in fixed frame 1, dynamic iron core 3 and static iron core 4, and electromagnetism is attracted component and uses
In being attracted dynamic iron core 3, the locating part 7 for preventing dynamic iron core 3 to be detached from is provided in drive shaft 2, the locating part 7 of the present embodiment uses T
Type nut.
A, Fig. 2 B, Fig. 4 A and Fig. 4 B referring to figure 2. are provided with shoulder 2-1, dynamic iron core 3 and electromagnetism actuation group in drive shaft 2
Part is located at the two sides of shoulder 2-1, and excess of stroke spring (not shown) and tripping spring (not shown) are provided in drive shaft 2, moves
First chamber 3-1 is provided on iron core 3, excess of stroke spring is arranged in first chamber 3-1, is conducive to fixed excess of stroke spring, quiet iron
Second chamber 4-1 is provided on core 4, tripping spring is arranged in second chamber 4-1, is conducive to fixed tripping spring.Excess of stroke bullet
The both ends of spring are connected with dynamic iron core 3 and shoulder 2-1 respectively, and the both ends of tripping spring are attracted component and shoulder with electromagnetism respectively
2-1 is connected.The first copper sheathing 3-2 is provided between drive shaft 2 and dynamic iron core 3.The static iron core 4 that the present embodiment uses is annular
Iron core, the inner hole of static iron core 4 are provided with the second copper sheathing 4-2 connected with tripping spring.
Referring to figure 5., the present embodiment provides a kind of vacuum circuit breakers, including bracket and the insulation being arranged on bracket
Pull rod 9, vacuum interrupter 10 and operating shaft 11, further include above-mentioned permanent magnet mechanism 8, and one end of permanent magnet mechanism 8 is drawn by insulation
Bar 9 is connect with the moved end of vacuum interrupter 10, and the moved end of vacuum interrupter 10 is also connected with the first lead-out wire row 12, vacuum extinction
The static side of room 10 is connected with the second lead-out wire row, is provided with disconnecting link 13 in operating shaft 11,11 side of operating shaft is provided with grounding lead
Line row, operating shaft 11 are simultaneously flexibly connected with the second lead-out wire row and ground lead row by disconnecting link 13 respectively.
The working principle of the present embodiment is as follows:
A and Fig. 4 B referring to figure 4., Fig. 4 A show the gate-dividing state of switch, and Fig. 4 B show the "on" position of switch.When
When switch needs to close a floodgate, PLC controller is attracted component to electromagnetism and is powered, and under the action of electromagnetic force, dynamic iron core 3 moves downward,
Drive shaft 2 is driven to move downward by compression excess of stroke spring simultaneously, when switch reaches closing position, drive shaft 2 is not still further below
Movement, and dynamic iron core 3 continues to move downward 2~3mm under the action of electromagnetic force, dynamic iron core 3 starts to compress excess of stroke spring at this time
With tripping spring until preset position, thus guarantee contact rated pressure (dynamic iron core 3 electromagnetism be attracted component effect under by
The stroke that open position reaches complete attracted position is defined as first stroke, and drive shaft 2 is under the action of dynamic iron core 3 by sub-gate position
The stroke for setting arrival closing position is defined as second stroke, and first stroke is greater than second stroke).Work of the dynamic iron core 3 in permanent magnet 5
It is constant with lower holding position, complete the making process of switch.While also ensuring the decrement of excess of stroke spring and tripping spring, it is
Switch separating brake has carried out energy storage preparation.
The above, the only preferred embodiment of the utility model, the utility model are not limited to above-mentioned implementation
Mode, as long as its technical effect for reaching the utility model with identical means, all should belong to the protection scope of the utility model.
Its technical solution and/or embodiment within the protection scope of the present utility model can have a variety of different modifications and variations.
Claims (7)
1. a kind of permanent magnet mechanism, including fixed frame (1), drive shaft (2) and the dynamic iron core (3) being arranged on fixed frame (1)
It is attracted component with electromagnetism, drive shaft (2) is actively located in fixed frame (1), dynamic iron core (3) and electromagnetism and is attracted component, and electromagnetism is attracted
Component is provided with the locating part (7) for preventing dynamic iron core (3) to be detached from for being attracted dynamic iron core (3) on the drive shaft (2), special
Sign is: being provided with shoulder (2-1) on the drive shaft (2), the dynamic iron core (3) and the electromagnetism are attracted component and are located at
The two sides of shoulder (2-1), are provided with excess of stroke spring and tripping spring on the drive shaft (2), the both ends of excess of stroke spring respectively with
The dynamic iron core (3) and shoulder (2-1) connect, and the both ends of tripping spring are attracted component and shoulder with the electromagnetism respectively
(2-1) is connected.
2. permanent magnet mechanism as described in claim 1, it is characterised in that: it includes static iron core (4), permanent magnetism that the electromagnetism, which is attracted component,
Iron (5) and coil windings (6), the drive shaft (2) are actively located in static iron core (4), and permanent magnet (5) is around setting in static iron core
(4) outside, coil windings (6) are set on static iron core (4).
3. permanent magnet mechanism as claimed in claim 2, it is characterised in that: be provided with first chamber (3- on the dynamic iron core (3)
1), the excess of stroke spring setting is in first chamber (3-1).
4. permanent magnet mechanism as claimed in claim 3, it is characterised in that: be provided with second chamber (4- on the static iron core (4)
1), the tripping spring setting is in the second chamber (4-1).
5. permanent magnet mechanism as described in claim 1, it is characterised in that: set between the drive shaft (2) and the dynamic iron core (3)
It is equipped with the first copper sheathing (3-2).
6. permanent magnet mechanism as described in claim 1, it is characterised in that: the dynamic iron core (3) is attracted component in the electromagnetism and makees
First stroke is defined as by the stroke that open position reaches complete attracted position under, the drive shaft (2) is in the dynamic iron core
(3) second stroke is defined as by the stroke that open position reaches closing position under the action of, first stroke is greater than second stroke.
7. a kind of vacuum circuit breaker, including bracket and the insulated pull rod being arranged on bracket, vacuum interrupter (10) and behaviour
Make axis (11), it is characterised in that: further include permanent magnet mechanism as claimed in any one of claims 1 to 6, one end of permanent magnet mechanism
It is connect by insulated pull rod (9) with the moved end of vacuum interrupter (10), the moved end of vacuum interrupter (10) is also connected with first and draws
Outlet row (12), the static side of vacuum interrupter (10) are connected with the second lead-out wire row, are provided with disconnecting link (13) in operating shaft (11),
Operating shaft (11) side is provided with ground lead row, and operating shaft (11) is simultaneously arranged and connect with the second lead-out wire respectively by disconnecting link (13)
Ground lead is flexibly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920102461.8U CN209544238U (en) | 2019-01-22 | 2019-01-22 | A kind of permanent magnet mechanism and vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920102461.8U CN209544238U (en) | 2019-01-22 | 2019-01-22 | A kind of permanent magnet mechanism and vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209544238U true CN209544238U (en) | 2019-10-25 |
Family
ID=68270772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920102461.8U Active CN209544238U (en) | 2019-01-22 | 2019-01-22 | A kind of permanent magnet mechanism and vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209544238U (en) |
-
2019
- 2019-01-22 CN CN201920102461.8U patent/CN209544238U/en active Active
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