CN205680647U - High-breaking miniature breaker - Google Patents
High-breaking miniature breaker Download PDFInfo
- Publication number
- CN205680647U CN205680647U CN201620642925.0U CN201620642925U CN205680647U CN 205680647 U CN205680647 U CN 205680647U CN 201620642925 U CN201620642925 U CN 201620642925U CN 205680647 U CN205680647 U CN 205680647U
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- CN
- China
- Prior art keywords
- contact
- static contact
- arc
- miniature breaker
- pull bar
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- 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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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a kind of high-breaking miniature breaker, its drip irrigation device includes housing, moving contact, static contact, magnetic system and binding post, a pull bar it is equipped with in the middle of the iron core of magnetic system, pull bar passes from moving contact, the end of pull bar is provided with spacing head, the middle part of described static contact is provided with a rotary shaft and forms lever construction, described spacing extended has action bars, action bars is rotationally connected with one end of static contact, and the other end of described static contact contacts for coordinating with moving contact.The purpose of this utility model is to provide a kind of high-breaking miniature breaker being effectively improved disjunction distance.
Description
Technical field
This utility model relates to miniature circuit breaker, and it relates to a kind of high-breaking miniature breaker in particular.
Background technology
At present, in prior art Authorization Notice No. to be that the Chinese patent document of CN2457727Y discloses a kind of high breaking little
Type chopper, including: freely take off mouth and operating mechanism, contact and arc-chutes, described freely take off mouth and operating mechanism is four
Linkage, is made up of handle, some connecting rods and tripping, and handle and some connecting rods are fixed with moving contact after being flexibly connected successively again
Connecting, tripping is also flexibly connected moving contact with connecting rod with static contact arranged opposite, and snap close is installed in that tripping is corresponding and energy
On the position fastened；Bimetal leaf is installed in snap close side, and makes bi-metal plate deformed can promote snap close after bending；Bimetallic
The lower section of sheet is fixing with magnetic system to be connected, and wears in the middle of the iron core of magnetic system；Being provided with a pull bar, this pull bar is worn from moving contact
Going out, the other end is equipped with a push rod；Being fixedly arranged above compression spring in frame, the other end of this spring is withstood with connecting rod.
The pull bar of above-mentioned patent is in outwardly directed state in normal state, when magnetic system detects big electric current,
Pull bar retracts, and owing to tie rod end is provided with spacing head, spacing head can be conflicted with moving contact, thus moving contact is pulled open static contact,
Play the effect of quick disjunction.But for existing above-mentioned chopper, even if moving contact and static contact are in disjunction state, but dynamic
Disjunction distance between contact and static contact is shorter, containing High-speed Electric ion in the electric arc produced during disjunction, by this electron ion
Can still result in moving contact to connect with static contact, although the time that electric arc exists is the shortest, but still the equipment connected can be caused damage
Evil, causes reduce the service life of equipment.
Utility model content
The deficiency existed for prior art, the purpose of this utility model is to provide one can be effectively improved disjunction distance
High-breaking miniature breaker.
For achieving the above object, this utility model provides following technical scheme: a kind of high-breaking miniature breaker, including
Housing, moving contact, static contact, magnetic system and binding post, be equipped with a pull bar in the middle of the iron core of magnetic system, and pull bar is driven
Passing in contact, the end of pull bar is provided with spacing head, and the middle part of described static contact is provided with a rotary shaft and forms lever construction, described
Spacing extended action bars, and action bars is rotationally connected with one end of static contact, the other end of described static contact for
Moving contact coordinates contact.
By using technique scheme, relative to traditional high-breaking miniature breaker, this utility model is by by quiet
Contact is arranged to mobilizable lever construction, and one end is identical with traditional structure for contacting with moving contact cooperation, and the other end is then
Being rotationally connected with action bars, action bars is connected with pull bar.Under normal power-up state, pull bar is in the state of stretching out, and works as magnetic system
When big electric current being detected, pull bar is retracted by iron core adhesive, and spacing head and moving contact are conflicted while being retracted by moving contact, action bars
Also static contact one end is pulled to the side at pull bar place, due to the lever construction of static contact, just makes static contact touch with dynamic simultaneously
One end of head contact deflects to the side away from moving contact.Final realization, when big electric current being detected, moving contact, static contact divide
The purpose not deflected round about, effectively increases the disjunction distance of moving contact and static contact.Owing to disjunction distance increases, point
The electric arc produced time disconnected draws away from increase, and the electron ion of flowing is difficult to contact with each other, and plays after preventing disjunction moving contact, static contact still
The purpose being conductively connected, faster, effect is more preferable for breaking speed.
This utility model is further arranged to: the part that described static contact connects with action bars is relative to the opposite side of action bars
Being provided with limited block, limited block is shaped in housing.
By using technique scheme, one end that the setting of limited block makes static contact be connected with action bars can only folk prescription
To being pulled to the side at pull bar place, i.e. the deflection angle to static contact plays restriction effect, and relative improves consolidating of static contact
Determine effect, use more stable.
This utility model is further arranged to: also include that arc-chutes, the lower section of described static contact are provided with for being drawn by electric arc
Enter the run-on tab in arc-chutes.
By using technique scheme, the bootable electric arc of run-on tab enters arc-chutes, to play arc extinguishing effect faster
Really.
This utility model is further arranged to: described run-on tab is arcuate structure.
By using technique scheme, traditional run-on tab structure is the straight plate tilted, and touches this straight plate at electric arc
Time by refraction by the way of enter arc-chutes, owing to refraction point is more concentrated by the effect of electric arc, life-time service is easily caused folding
Occur at exit point burning, melting phenomenon, cause chopper to damage, this utility model by run-on tab is set to arcuate structure,
Electric arc is along in the complete introducing arc-chutes of run-on tab, and centre occurs without the centrostigma of arcing, run-on tab not easy damaged, enters
And improve the service life of this high-breaking miniature breaker.
This utility model is further arranged to: described housing be positioned at the both sides, contact site of moving contact and static contact be provided with every
Arc sheet.
By using technique scheme, the arc sheet of setting can be avoided arcing on housing, prevent housing from damaging
Bad.
This utility model is further arranged to: also include that binding post, described binding post are connected with rotary shaft, rotary shaft
For conductive material.
By using technique scheme, owing to the position of rotary shaft will not change, rotary shaft is conductive material, logical
Cross binding post and with rotary shaft thus realize the connection of binding post and static contact, facilitate the connection of binding post and static contact.
This utility model is further arranged to: also include that binding post, described binding post and static contact pass through flexible circuit conductor
Connect.
By using technique scheme, another kind of binding post and the connected mode of static contact, binding post uses soft
Wire connects the mode of static contact, drags flexible circuit conductor when static contact deflects, and flexible circuit conductor will not fracture, and will not be to static contact
Deflection impacts, and facilitates the connection of binding post and static contact.
This utility model is further arranged to: described action bars is connected with pull bar one.
By using technique scheme, facilitate the production and processing of action bars and pull bar.
This utility model is further arranged to: the position that described moving contact and static contact contact with each other is equipped with silver contact.
By using technique scheme, the electric conductivity of silver is preferable, by arranging silver contact on moving contact with static contact
Contact, the energising performance of moving contact and static contact can be improved.
This utility model is further arranged to: the lower end of described moving contact is in the structure tilted to arc-chutes.
By using technique scheme, contributing to preferably electric arc being introduced arc-chutes, arc extinction performance is more preferable.
In sum, this utility model provides one can be effectively improved disjunction distance, the faster high breaking of breaking speed
Miniature circuit breaker.
Accompanying drawing explanation
Fig. 1 is internal structure schematic diagram during high-breaking miniature breaker disconnection described in this utility model embodiment one；
Fig. 2 is enlarged drawing at the A of Fig. 1；
Fig. 3 is internal structure schematic diagram during high-breaking miniature breaker disconnection described in this utility model embodiment two；
Fig. 4 is enlarged drawing at the B of Fig. 3.
Description of reference numerals: 1, housing；2, magnetic system；3, moving contact；4, static contact；5, pull bar；6, action bars；7, rotate
Axle；8, binding post；9, spacing head；10, arc-chutes；11, run-on tab；12, arc sheet；13, limited block；14, silver contact；15、
Connecting rod；16, flexible circuit conductor.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
Embodiment one, such as Fig. 1-2, a kind of high-breaking miniature breaker, including housing 1, arc-chutes 10, moving contact 3, stationary contact
4, magnetic system 2 and binding post 8, be equipped with a pull bar 5 in the middle of the iron core of magnetic system 2, and pull bar 5 is worn from moving contact 3
Going out, the end of pull bar 5 is provided with spacing 9, and above section is as good as with prior art, therefore seldom repeats；As in figure 2 it is shown, static contact 4
Middle part be provided with a rotary shaft 7 and form lever construction, spacing 9 one is the most extended action bars 6, action bars 6 and static contact 4
One end be rotationally connected, the other end of static contact 4 for moving contact 3 coordinate contact, this cooperation contact for arranging silver contact 14
Contact；The part that static contact 4 connects with action bars 6 is provided with limited block 13, limited block 13 1 relative to the opposite side of action bars 6
Body formed in housing 1；Rotary shaft 7 is to be connected between copper material, and binding post 8 with rotary shaft 7 to have connecting rod 15, thus realizes
Static contact 4 and the connection of binding post 8.
Under normal power-up state, pull bar 5 is in the state of stretching out, and one end of static contact 4 is pushed against limited block by action bars 6
On 13, now static contact 4 is in vertical state；When magnetic system 2 detects big electric current, pull bar 5 is retracted by iron core adhesive, spacing
9 conflict with moving contact 3 moving contact 3 is retracted while, static contact 4 one end is also pulled to the one of pull bar 5 place by action bars 6
Side, due to the lever construction of static contact 4, just makes one end that static contact 4 contacts with moving contact 3 to away from moving contact 3 simultaneously
Side deflects.Final realization, when big electric current being detected, the purpose that moving contact 3, static contact 4 deflect the most round about, have
Effect adds the disjunction distance of moving contact 3 and static contact 4.Owing to disjunction distance increases, the electric arc produced during disjunction draws away from increase,
The electron ion of flowing is difficult to contact with each other, and plays moving contact 3 after preventing disjunction, purpose that static contact 4 is still conductively connected, disjunction speed
Faster, effect is more preferable for degree.One end that the setting of limited block 13 makes static contact 4 be connected with action bars 6 can only one direction be pulled to
Restriction effect, the relative fixing effect improving static contact 4 are played in the side at pull bar 5 place, the i.e. deflection angle to static contact 4
Really, use more stable.
It addition, lifting arc quenching effect, acceleration extinguishing electric arc can play the effect improving breaking capacity further；Scheme exists
In, the lower end of moving contact 3 is in the structure tilted to arc-chutes 10, and it contributes to preferably being introduced by electric arc arc-chutes 10；Simultaneously
The lower section of static contact 4 is provided with the run-on tab 11 for being introduced by electric arc in arc-chutes 10, and this run-on tab 11 is arcuate structure.Pass through
Electric arc is introduced arc-chutes 10 by run-on tab 11, is more conducive to the quick extinguishing of electric arc, it is to avoid in electric arc, electron ion is free forms sky
Between path, thus improve disjunction effect；And electric arc is arcuate structure, electric arc is along the complete introducing arc-chutes 10 of run-on tab 11
In, centre occurs without the centrostigma of arcing, run-on tab 11 not easy damaged, and then improves this high-breaking miniature breaker
Service life.
As in figure 2 it is shown, the both sides, contact site that housing 1 is positioned at moving contact 3 and static contact 4 are provided with arc sheet 12.Arrange
Arc sheet 12 can avoid arcing on housing 1, prevents housing 1 from damaging.
Embodiment two, as shown in Figure 3-4, with differing only in of embodiment one, binding post 8 and static contact 4 are by soft
Wire 16 connects, and two ends are welding.Binding post 8 uses flexible circuit conductor 16 to connect the mode of static contact 4, when static contact 4 deflects
Dragging flexible circuit conductor 16, flexible circuit conductor 16 will not fracture, and will not impact the deflection of static contact 4, facilitates binding post 8 with quiet
The connection of contact 4.
In sum, this utility model provides one can be effectively improved disjunction distance, the faster high breaking of breaking speed
Miniature circuit breaker.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, all in this practicality
Within novel design concept, any modification, equivalent substitution and improvement etc. made, should be included in protection of the present utility model
Within the scope of.
Claims (10)
1. a high-breaking miniature breaker, including housing (1), moving contact (3), static contact (4), magnetic system (2) and wiring
Terminal (8), is equipped with a pull bar (5) in the middle of the iron core of magnetic system (2), and pull bar (5) passes from moving contact (3), pull bar (5)
End be provided with spacing head (9), it is characterised in that: the middle part of described static contact (4) be provided with a rotary shaft (7) formed lever knot
Structure, described spacing head (9) is extended action bars (6), and action bars (6) is rotationally connected with one end of static contact (4), described quiet
The other end of contact (4) contacts for coordinating with moving contact (3).
High-breaking miniature breaker the most according to claim 1, it is characterised in that: described static contact (4) and action bars (6)
The part connected is provided with limited block (13) relative to the opposite side of action bars (6), and limited block (13) is shaped in housing (1).
High-breaking miniature breaker the most according to claim 1 and 2, it is characterised in that: also include arc-chutes (10), described
The lower section of static contact (4) is provided with the run-on tab (11) in electric arc introduces arc-chutes (10).
High-breaking miniature breaker the most according to claim 3, it is characterised in that: described run-on tab (11) is arc knot
Structure.
High-breaking miniature breaker the most according to claim 4, it is characterised in that: described housing (1) is positioned at moving contact (3)
It is provided with arc sheet (12) with the both sides, contact site of static contact (4).
High-breaking miniature breaker the most according to claim 5, it is characterised in that: also include binding post (8), described in connect
Line terminals (8) is connected with rotary shaft (7), and rotary shaft (7) is conductive material.
High-breaking miniature breaker the most according to claim 5, it is characterised in that: also include binding post (8), described in connect
Line terminals (8) is connected by flexible circuit conductor (16) with static contact (4).
High-breaking miniature breaker the most according to claim 1, it is characterised in that: described action bars (6) and pull bar (5)
Body connects.
High-breaking miniature breaker the most according to claim 1, it is characterised in that: described moving contact (3) and static contact (4)
The position contacted with each other is equipped with silver contact (14).
High-breaking miniature breaker the most according to claim 3, it is characterised in that: the lower end of described moving contact (3) in
The structure that arc-chutes (10) tilt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620642925.0U CN205680647U (en) | 2016-06-22 | 2016-06-22 | High-breaking miniature breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620642925.0U CN205680647U (en) | 2016-06-22 | 2016-06-22 | High-breaking miniature breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205680647U true CN205680647U (en) | 2016-11-09 |
Family
ID=57429449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620642925.0U Expired - Fee Related CN205680647U (en) | 2016-06-22 | 2016-06-22 | High-breaking miniature breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205680647U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108242373A (en) * | 2018-02-27 | 2018-07-03 | 首瑞（天津）电气设备有限公司 | A kind of breaker |
-
2016
- 2016-06-22 CN CN201620642925.0U patent/CN205680647U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108242373A (en) * | 2018-02-27 | 2018-07-03 | 首瑞（天津）电气设备有限公司 | A kind of breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161109 Termination date: 20180622 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |