CN207282397U - A kind of vacuum circuit breaker permanent magnetic mechanism - Google Patents
A kind of vacuum circuit breaker permanent magnetic mechanism Download PDFInfo
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- CN207282397U CN207282397U CN201721237796.8U CN201721237796U CN207282397U CN 207282397 U CN207282397 U CN 207282397U CN 201721237796 U CN201721237796 U CN 201721237796U CN 207282397 U CN207282397 U CN 207282397U
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- yoke
- iron core
- guiding axis
- dynamic iron
- magnetic
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Abstract
The utility model discloses a kind of vacuum circuit breaker permanent magnetic mechanism, including moving armature, permanent magnet and cylindrical yoke group, the moving armature includes guiding axis and dynamic iron core, the guiding axis runs through dynamic iron core, the yoke group includes upper magnet yoke, inner yoke, outer yoke and lower yoke, the inner yoke is structure as a whole with outer yoke, and inner yoke has boss, and the permanent magnet is placed between boss and outer yoke；The guiding axis carries adjustable position, and upper magnet yoke carries graduation mark；The guiding axis is interference fitted with dynamic iron core, and guiding axis is rotatable, and drives dynamic iron core to rotate.By the guiding axis with adjustable position and the upper magnet yoke with graduation mark, during guiding axis drives dynamic iron core to rotate, to realize that the accurate of retentivity is adjusted, reach simple in construction, easy to disassemble and assemble, can accurately adjust the effect of retentivity at any time.
Description
Technical field
Vacuum circuit breaker field is the utility model is related to, particularly a kind of vacuum circuit breaker permanent magnetic mechanism.
Background technology
The permanent-magnet manipulating mechanism of vacuum circuit breaker, is embedded in permanent magnet mechanism using permanent magnet, is come by the size of permanent magnetic field
Ensureing the action parameter of vacuum circuit breaker, but adjust permanent magnetic field size, the permanent magnet that can only lean in mechanism for assembling-disassembling again ensures,
Such a method is bothersome, laborious, and the numerical value adjusted is not accurate enough, generally requires to adjust repeatedly.
Utility model content
The purpose of this utility model is to provide a kind of permanent magnet mechanism for adjusting retentivity, pass through leading for rotary permanent-magnet mechanism
To axis, to complete the adjustment of retentivity, so as to reach simple in construction, easy to disassemble and assemble, the effect of retentivity can be accurately adjusted at any time
Fruit.
To realize this purpose, there is provided following technical scheme：
A kind of vacuum circuit breaker permanent magnetic mechanism, including moving armature, permanent magnet and cylindrical yoke group, the moving armature include
Guiding axis and dynamic iron core, the guiding axis run through dynamic iron core, and the yoke group includes upper magnet yoke, inner yoke, outer yoke and lower magnetic
Yoke, the inner yoke are structure as a whole with outer yoke, and inner yoke has boss, and the permanent magnet is placed between boss and outer yoke；
The guiding axis carries adjustable position, and upper magnet yoke carries graduation mark；
The guiding axis is interference fitted with dynamic iron core, and guiding axis is rotatable, and drives dynamic iron core to rotate.
Preferably, the upper magnet yoke is fixed by screws in outer yoke with lower yoke.
Preferably, the upper magnet yoke is fixed in outer yoke by six screws, six 60 degree of two twenty percents of screw, and is located at
On same circle；Lower yoke is fixed in outer yoke by six screws, and distribution situation is identical with six screws of upper magnet yoke.
Preferably, the dynamic iron core includes top and bottom, and upper end is interference fitted with guiding axis, and lower end is with being oriented between centers
Gap coordinates, and dynamic iron core is equidistantly provided with six clearance grooves.
Preferably, during combined floodgate, permanent magnet, inner yoke, dynamic iron core, lower yoke, outer yoke form magnetic conductive loop, realize and close a floodgate
Position is kept；During separating brake, magnetic conductive loop is formed by permanent magnet, outer yoke, upper magnet yoke, dynamic iron core, inner yoke, realizes sub-gate position
Put holding.
Preferably, during closing position, retentivity calculation formula is retentivity for F=10-6 × B × H × S/8 π, F, and B is magnetic
Field and the magnetic induction intensity at permeability magnetic material acting surface, H are magnetic field and the magnetic field intensity at permeability magnetic material acting surface, and S is magnetic field
With the area of permeability magnetic material acting surface.
The beneficial effects of the utility model are：Pass through the guiding axis with adjustable position and the upper magnetic with graduation mark
Yoke, during guiding axis drives dynamic iron core to rotate, to realize that the accurate of retentivity is adjusted, reaches simple in structure, dismounting side
Just, the effect of retentivity can be accurately adjusted at any time.
Brief description of the drawings
Fig. 1 is this permanent magnet mechanism semi-cutaway；
Fig. 2 is this permanent magnet mechanism top view；
Fig. 3 is moving armature structure diagram；
Fig. 4 is inside and outside magnetic yoke structure schematic diagram.
Embodiment
It is this permanent magnet mechanism semi-cutaway as shown in Figure 1, including moving armature 100, permanent magnet 300 and cylindrical yoke group 200,
Moving armature 300 includes guiding axis 101 and dynamic iron core 102, and guiding axis 101 runs through dynamic iron core 102, and yoke group 200 includes upper magnet yoke
201st, inner yoke 203, outer yoke 202 and lower yoke 204, inner yoke 203 are structure as a whole (as shown in Figure 4) with outer yoke 202,
Inner yoke 203 has boss, and permanent magnet 300 is placed between boss and outer yoke 202, permanent magnet 300, interior when permanent magnet mechanism closes a floodgate
Yoke 203, dynamic iron core 102, lower yoke 204, outer yoke 202 form magnetic conductive loop, realize that closing position is kept；During separating brake, lead to
Cross permanent magnet 300, outer yoke 202, upper magnet yoke 201, dynamic iron core 102, inner yoke 203 and form magnetic conductive loop, realize open position
Keep.During closing position, retentivity calculation formula is retentivity for F=10-6 × B × H × S/8 π, F, and B is magnetic field and magnetic conduction material
Expect the magnetic induction intensity at acting surface, H is magnetic field and the magnetic field intensity at permeability magnetic material acting surface, and S is magnetic field and permeability magnetic material
The area of acting surface.
Wherein, guiding axis 101 carries adjustable position, and upper magnet yoke 201 carries graduation mark, guiding axis 101 and dynamic iron core 102
Interference fit, guiding axis 101 is rotatable, and it is different from inner yoke 203 by varying dynamic iron core 102 to drive dynamic iron core 102 to rotate
Contact position, to change the area i.e. S of magnetic field and permeability magnetic material effect, and by the pointer on guiding axis 101, with upper magnet yoke
201 graduation mark, can clearly distinguish the position and direction of adjustment.
Wherein, upper magnet yoke 201 as shown in Figure 2 is fixed by screws in outer yoke 202 with lower yoke 204.Upper magnet yoke 201
It is fixed on by six level-one screws 401 in outer yoke 202, six 401 liang of level-one screw, 60 degree of twenty percents, and is located at same circle
On；Lower yoke is fixed in outer yoke 202 by six two level screws 402, distribution situation and six level-one spiral shells of upper magnet yoke 201
It is identical to follow closely 401.
Wherein, dynamic iron core 102 as shown in Figure 3 includes upper end 111 and lower end 110, and upper end 111 is matched somebody with somebody with 102 interference of guiding axis
Close, lower end 110 and 102 clearance fit of guiding axis, dynamic iron core 102 are equidistantly provided with six clearance grooves 112.
The foregoing is merely the preferred embodiment of this patent, this patent is not limited to, for the skill of this area
For art personnel, this patent can have various modifications and variations.It is all within the spirit and principle of this patent, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included within the protection domain of this patent.
Claims (6)
1. a kind of vacuum circuit breaker permanent magnetic mechanism, it is characterised in that described including moving armature, permanent magnet and cylindrical yoke group
Moving armature includes guiding axis and dynamic iron core, and the guiding axis runs through dynamic iron core, and the yoke group includes upper magnet yoke, inner yoke, outer
Yoke and lower yoke, the inner yoke are structure as a whole with outer yoke, and inner yoke has a boss, the permanent magnet be placed in boss with it is outer
Between yoke；
The guiding axis carries adjustable position, and upper magnet yoke carries graduation mark；
The guiding axis is interference fitted with dynamic iron core, and guiding axis is rotatable, and drives dynamic iron core to rotate.
2. a kind of vacuum circuit breaker permanent magnetic mechanism according to claim 1, it is characterised in that the upper magnet yoke and lower magnetic
Yoke is fixed by screws in outer yoke.
3. a kind of vacuum circuit breaker permanent magnetic mechanism according to claim 2, it is characterised in that the upper magnet yoke passes through six
Screw is fixed in outer yoke, six 60 degree of two twenty percents of screw, and on same circle；Lower yoke is fixed by six screws
In outer yoke, distribution situation is identical with six screws of upper magnet yoke.
4. a kind of vacuum circuit breaker permanent magnetic mechanism according to claim 1, it is characterised in that the dynamic iron core includes upper
End and lower end, upper end are interference fitted with guiding axis, and lower end and guiding axis clearance fit, dynamic iron core are equidistantly provided with six clearance grooves.
A kind of 5. vacuum circuit breaker permanent magnetic mechanism according to claim 1, it is characterised in that during combined floodgate, permanent magnet, interior magnetic
Yoke, dynamic iron core, lower yoke, outer yoke form magnetic conductive loop, realize that closing position is kept；During separating brake, pass through permanent magnet, outer magnetic
Yoke, upper magnet yoke, dynamic iron core, inner yoke form magnetic conductive loop, realize that open position is kept.
A kind of 6. vacuum circuit breaker permanent magnetic mechanism according to claim 5, it is characterised in that during closing position, retentivity
Calculation formula is retentivity for F=10-6 × B × H × S/8 π, F, and B is strong for magnetic field and the magnetic induction at permeability magnetic material acting surface
Degree, H are magnetic field and the magnetic field intensity at permeability magnetic material acting surface, and S is magnetic field and the area of permeability magnetic material acting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721237796.8U CN207282397U (en) | 2017-09-26 | 2017-09-26 | A kind of vacuum circuit breaker permanent magnetic mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721237796.8U CN207282397U (en) | 2017-09-26 | 2017-09-26 | A kind of vacuum circuit breaker permanent magnetic mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207282397U true CN207282397U (en) | 2018-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721237796.8U Active CN207282397U (en) | 2017-09-26 | 2017-09-26 | A kind of vacuum circuit breaker permanent magnetic mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN207282397U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2017
- 2017-09-26 CN CN201721237796.8U patent/CN207282397U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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