CN206877948U - A kind of magnetic keeps overload protection arrangement - Google Patents
A kind of magnetic keeps overload protection arrangement Download PDFInfo
- Publication number
- CN206877948U CN206877948U CN201720787345.5U CN201720787345U CN206877948U CN 206877948 U CN206877948 U CN 206877948U CN 201720787345 U CN201720787345 U CN 201720787345U CN 206877948 U CN206877948 U CN 206877948U
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- iron core
- dynamic iron
- yoke
- magnetic
- overload protection
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Abstract
The utility model discloses a kind of magnetic to keep overload protection arrangement, including static contact；Moving contact, it is oppositely arranged with static contact；Dynamic iron core, the dynamic iron core are connected with moving contact；Paired permanent magnet, the paired permanent magnet are symmetrically mounted on the left and right sides of dynamic iron core；The preceding yoke of coiling, is oppositely arranged with the front end of dynamic iron core；The rear magnetic yoke of coiling, it is oppositely arranged with the rear end of dynamic iron core；When checking current overload in breaker, yoke before change and the rear magnetic yoke coil sense of current can be passed through, to change the magnetic pole of preceding yoke and rear magnetic yoke, according to magnetic pole, identical charges repel each other, the principle that there is a natural attraction between the sexes, so that dynamic iron core is under the electromagnetic force of preceding yoke and rear magnetic yoke, moved forward and backward between preceding yoke and rear magnetic yoke, when dynamic iron core is moved to required position, the magnetic pole of yoke and rear magnetic yoke before not changing, the position that dynamic iron core is presently in can effectively be kept so that moving contact keeps released state with static contact, avoids maloperation.
Description
Technical field
Field of circuit breakers is the utility model is related to, more specifically, it relates to which a kind of magnetic keeps overload protection arrangement.
Background technology
Breaker is a kind of equipment for being used to be switched off and on circuit and have defencive function, and the quality of its performance is directly
It is related to the safety of electricity consumption；Wherein overload protection arrangement as breaker in electric current excessive situation lower static contact and moving contact suddenly
And the executing agency of disconnecting circuit, it is the chief component that open circuit is protected.Wherein electromagnetic overload protection device includes being used to produce
The coil of raw electromagnetic force, it is slidably mounted on the armature that can be moved in coil and under electromagnetic force；It is connected with armature
Support body, driven by armature and moved between the first position and the second position along the axis of coil, support body makes moving contact and stationary contact
Head separation or contact, for armature to be fixed on to the locking piece of the second place, wherein locking piece can attract the rank by magnetic force
Iron one end simultaneously can be used as holding during ground-fault interrupter closure state with the permanent magnet of its adhesive by the use of the magnetic force of permanent magnet
Power, this requires that permanent magnet has enough magnetic force adhesive armatures, the problem of easily causing breaker overlond trip failure.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is that providing a kind of magnetic keeps drive device, it is real
Existing trip gear carries out overlond trip, it is possible to prevente effectively from the problem of breaker overlond trip failure.
To achieve the above object, the utility model provides following technical scheme：
A kind of magnetic keeps overload protection arrangement, including
Static contact；
Moving contact, it is oppositely arranged with static contact,
Dynamic iron core, the dynamic iron core are connected with moving contact；
Paired permanent magnet, the paired permanent magnet are symmetrically mounted on the left and right sides of dynamic iron core；
The preceding yoke of coiling, is oppositely arranged with the front end of dynamic iron core；
The rear magnetic yoke of coiling, it is oppositely arranged with the rear end of dynamic iron core；
When dynamic iron core is under the electromagnetic force of preceding yoke and rear magnetic yoke, moved forward and backward between preceding yoke and rear magnetic yoke,
So as to drive moving contact to separate or contact with static contact.
The utility model is further set：Also include fixed mount, the fixed mount is provided with the driving for being used for installing dynamic iron core
Passage and the mounting groove for installing permanent magnet, the mounting groove are symmetricly set on the left and right sides of dynamic iron core.
The utility model is further set：The dynamic iron core includes dynamic iron core main body and limiting section, the driving passage bag
Passage after including driving prepass and driving, passage setting corresponding with rear magnetic yoke after driving, the dynamic iron core main body are placed in driving
On prepass, the limiting section is placed in after driving the displacement on passage, limiting dynamic iron core.
The utility model is further set：The dynamic iron core main body is provided with the linkage head stretched out outside fixed mount, the linkage
Head is connected with static contact.
The utility model is further set：Be provided with front apron on the fixed mount, the linkage head through front apron with
Static contact is connected.
The utility model is further set：The paired permanent magnet at least one pair of, be arranged on the centre position of dynamic iron core.
The utility model beneficial effect：, can be by changing preceding yoke and rear magnetic when checking current overload in breaker
The yoke coil sense of current, to change the magnetic pole of preceding yoke and rear magnetic yoke, wherein paired permanent magnet is symmetrically mounted on dynamic iron core
The left and right sides, realize the magnetization to dynamic iron core, identical charges repel each other according to magnetic pole, the principle that there is a natural attraction between the sexes so that dynamic iron core is preceding
Under the electromagnetic force of yoke and rear magnetic yoke, moved forward and backward between preceding yoke and rear magnetic yoke, when rear magnetic yoke and dynamic iron core after
Hold magnetic pole it is identical, preceding yoke is different from the front end magnetic pole of dynamic iron core so that dynamic iron core forward movement, so as to drive moving contact with it is quiet
Contact separates, and realizes overload protection, and when dynamic iron core is moved to required position, the magnetic pole of yoke and rear magnetic yoke before not changing can
With the position for effectively keeping dynamic iron core to be presently in so that moving contact keeps released state with static contact, avoids maloperation.
Brief description of the drawings
Fig. 1 is the structural representation installed on breaker that a kind of magnetic of the utility model keeps overload protection arrangement；
Fig. 2 is the structural representation that a kind of magnetic of the utility model keeps overload protection arrangement；
Fig. 3 is that a kind of magnetic of the utility model keeps overload protection arrangement to remove the structural representation after static contact and moving contact
Figure；
Fig. 4 is the structural representation that fixed mount is provided with dynamic iron core and permanent magnet；
Fig. 5 is the structural representation of fixed mount；
Fig. 6 is the structural representation of dynamic iron core.
Description of reference numerals：1st, static contact；2nd, moving contact；3rd, dynamic iron core；31st, iron core main body；311st, link head；32 is spacing
Portion；4th, fixed mount；41st, passage is driven；411st, prepass is driven；412nd, passage after driving；42nd, mounting groove；5th, permanent magnet；6th, it is preceding
Yoke；7th, rear magnetic yoke；8th, front apron.
Embodiment
1 to Fig. 6 overload protection arrangement is kept to be described in further details a kind of magnetic of the utility model referring to the drawings.
A kind of magnetic keeps overload protection arrangement, including static contact 1, can be fixed in the housing of breaker, its with it is external
Power supply is connected；Moving contact 2, it is oppositely arranged with static contact 1, can be relatively moved towards static contact 1, realizes static contact 1 with moving
Contact 2 is contacted or separated, dynamic iron core 3, and the dynamic iron core 3 is connected with moving contact 2, and wherein dynamic iron core 3, which is arranged on, fixes
In the driving passage 41 of frame 4；Paired permanent magnet 5, the paired permanent magnet 5 are symmetrically mounted on the left and right sides of dynamic iron core 3, and
And in the mounting groove 42 of fixed mount 4；The preceding yoke 6 of coiling, is oppositely arranged with the front end of dynamic iron core 3；Coiling
Rear magnetic yoke 7, it is oppositely arranged with the rear end of dynamic iron core 3；When checking current overload in breaker, yoke before change 6 can be passed through
With the coil sense of current of rear magnetic yoke 7, come yoke 6 before changing and the magnetic pole of rear magnetic yoke 7, wherein paired permanent magnet 5 is symmetrically pacified
Mounted in the left and right sides of dynamic iron core 3, the magnetization to dynamic iron core 3 is realized, identical charges repel each other according to magnetic pole, the principle that there is a natural attraction between the sexes, makes
Dynamic iron core 3 under the electromagnetic force of preceding yoke 6 and rear magnetic yoke 7, between preceding yoke 6 and rear magnetic yoke 7 move forward and backward, when after
Yoke 7 is identical with the rear end magnetic pole of dynamic iron core 3, and preceding yoke 6 is different from the front end magnetic pole of dynamic iron core 3 so that dynamic iron core 3 is to reach
It is dynamic, so as to drive moving contact 2 to be separated with static contact 1, overload protection is realized, when dynamic iron core 3 is moved to required position, is not changed
The magnetic pole of preceding yoke 6 and rear magnetic yoke 7, the position that can effectively keep dynamic iron core 3 to be presently in so that moving contact 2 and static contact 1
Released state is kept, avoids maloperation.
Wherein described dynamic iron core 3 includes dynamic iron core main body 31 and limiting section 32, and the driving passage 41 leads to before including driving
Passage 412 behind road 411 and driving, passage 412 is placed in drive with 7 corresponding setting of rear magnetic yoke, the dynamic iron core main body 31 after driving
On dynamic prepass 411, the limiting section 32 is placed in after driving on passage 412, limits the displacement of dynamic iron core 3, improving it makes
Use performance.
The paired permanent magnet 5 at least one pair of, be arranged on the centre position of dynamic iron core 3, can be set according to actual conditions
Put the logarithm of permanent magnet 5.
Wherein described dynamic iron core main body 31 is provided with the linkage first 311 stretched out outside fixed mount 4, the linkage first 311 and stationary contact
First 1 is connected, and is easy to dynamic iron core 3 to be connected with static contact 1, wherein front apron 8 is provided with the fixed mount 4, the linkage
First 311 are connected through front apron 8 with static contact 1, can effectively limit first 311 moving range of linkage.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (6)
1. a kind of magnetic keeps overload protection arrangement, it is characterized in that：Including
Static contact；
Moving contact, it is oppositely arranged with static contact；
Dynamic iron core, the dynamic iron core are connected with moving contact；
Paired permanent magnet, the paired permanent magnet are symmetrically mounted on the left and right sides of dynamic iron core；
The preceding yoke of coiling, is oppositely arranged with the front end of dynamic iron core；
The rear magnetic yoke of coiling, it is oppositely arranged with the rear end of dynamic iron core；
When dynamic iron core is under the electromagnetic force of preceding yoke and rear magnetic yoke, moved forward and backward between preceding yoke and rear magnetic yoke, so as to
Moving contact is driven to separate or contact with static contact.
2. a kind of magnetic according to claim 1 keeps overload protection arrangement, it is characterized in that：Also include fixed mount, it is described solid
Fixed set up has the driving passage for installing dynamic iron core and the mounting groove for installing permanent magnet, and the mounting groove is symmetrical arranged
In the left and right sides of dynamic iron core.
3. a kind of magnetic according to claim 2 keeps overload protection arrangement, it is characterized in that：The dynamic iron core includes dynamic iron core
Main body and limiting section, the driving passage include passage after driving prepass and driving, and passage is corresponding with rear magnetic yoke after driving
Set, the dynamic iron core main body is placed on driving prepass, and the limiting section is placed in after driving on passage, limits the shifting of dynamic iron core
Dynamic distance.
4. a kind of magnetic according to claim 3 keeps overload protection arrangement, it is characterized in that：The dynamic iron core main body, which is provided with, stretches
The linkage head gone out outside fixed mount, the linkage head are connected with static contact.
5. a kind of magnetic according to claim 4 keeps overload protection arrangement, it is characterized in that：Before being provided with the fixed mount
Baffle plate, the linkage head are connected through front apron with static contact.
6. a kind of magnetic according to claim 1 keeps overload protection arrangement, it is characterized in that：The paired permanent magnet is at least
A pair, it is arranged on the centre position of dynamic iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720787345.5U CN206877948U (en) | 2017-07-01 | 2017-07-01 | A kind of magnetic keeps overload protection arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720787345.5U CN206877948U (en) | 2017-07-01 | 2017-07-01 | A kind of magnetic keeps overload protection arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206877948U true CN206877948U (en) | 2018-01-12 |
Family
ID=61331717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720787345.5U Active CN206877948U (en) | 2017-07-01 | 2017-07-01 | A kind of magnetic keeps overload protection arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206877948U (en) |
-
2017
- 2017-07-01 CN CN201720787345.5U patent/CN206877948U/en active Active
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