CN207338281U - A kind of miniature circuit breaker - Google Patents
A kind of miniature circuit breaker Download PDFInfo
- Publication number
- CN207338281U CN207338281U CN201721450595.6U CN201721450595U CN207338281U CN 207338281 U CN207338281 U CN 207338281U CN 201721450595 U CN201721450595 U CN 201721450595U CN 207338281 U CN207338281 U CN 207338281U
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- China
- Prior art keywords
- connecting rod
- lock
- housing
- divide
- moving contact
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Abstract
It the utility model is related to a kind of miniature circuit breaker,Including housing,The operating mechanism being arranged in housing,Magnetictrip,Arc-chutes,Moving contact,Static contact,Bimetal leaf,Divide-shut brake indicator,Operating mechanism includes handle,Tripping,U type connecting rod,Big connecting rod,Lock,Shaft,One end of U type connecting rod is connected on handle,The other end of U type connecting rod is connected on one end of tripping,One end of big connecting rod is by rivet interlacement on the other end of tripping,Moving contact is arranged on the other end of big connecting rod,And it is provided with tension spring between the positioning column in moving contact and housing,Shaft sequentially passes through lock,Big connecting rod,And the both ends of shaft are installed in the location hole in housing,Banking stop is provided with the side of tripping direction lock,It is provided with the lock and the matched locked groove of banking stop,Draw bar is provided with lock,One end of draw bar is contradicted on bimetal leaf.The utility model has the advantages that simple in structure, stable and reliable for performance, high breaking.
Description
Technical field
The utility model belongs to low voltage electrical apparatus technology field, and in particular to a kind of miniature circuit breaker.
Background technology
Miniature circuit breaker be suitable for exchange 50/60Hz rated voltage 230/400V, the overload of rated current to 63A circuits and
Short-circuit protection is used, and infrequently operation conversion that can also be under normal circumstances as circuit is used.Miniature circuit breaker is mainly used
In various places such as industrial, commercial, high-rise and residential premises.Miniature circuit breaker includes housing, the operation machine being arranged in housing
Structure, contact system, electromagnetic system, arc-control device, the operating mechanism structure design of existing miniature circuit breaker is unreasonable, so that should
There are the defects of breaking capacity is relatively low, performance is unstable for miniature circuit breaker.
The content of the invention
The purpose of the utility model is to overcome the defects of the prior art, there is provided it is a kind of it is simple in structure, stable and reliable for performance,
The miniature circuit breaker of high breaking.
To achieve the above object, the utility model uses a kind of miniature circuit breaker, including housing, the behaviour that is arranged in housing
Make mechanism, magnetictrip, arc-chutes, moving contact, static contact, bimetal leaf, divide-shut brake indicator, the operating mechanism bag
Include handle, tripping, U type connecting rod, big connecting rod, lock, shaft, one end of U type connecting rod is connected on handle, U type connecting rod it is another
End is connected on one end of tripping, and by rivet interlacement on the other end of tripping, the moving contact is set for one end of big connecting rod
Put on the other end of big connecting rod, and tension spring is provided between the positioning column in moving contact and housing, the shaft is worn successively
Lock, big connecting rod are crossed, and the both ends of shaft are installed in the location hole in housing, are set on the side of tripping direction lock
Be equipped with banking stop, be provided with the lock with the matched locked groove of banking stop, be provided with draw bar on lock, draw bar
One end is contradicted on bimetal leaf.
The beneficial effect of said structure is：The miniature circuit breaker is simple, stable and reliable for performance, high breaking excellent with structure
Point, handle, tripping, U type connecting rod, the big connecting rod of the operating mechanism form a quadric chain, and the structure of the operating mechanism is set
Simple and simple operation is counted, in operation, rotational handle, handle drives tripping, big connecting rod, lock to act by U type connecting rod, greatly
The rich shaft of connecting rod, lock rotates, and big connecting rod drives moving contact action, and tension spring energy storage, so that moving contact is quickly closed with static contact
Close.
Especially, corresponded in the housing and locate limiting plate between moving contact and bimetal leaf, when moving contact is in separating brake
During position, moving contact is fitted on the side of limiting plate.Limiting plate can play position-limiting action to moving contact, ensure that moving contact moves
The reliability of work.
Especially, the divide-shut brake indicator is rotatably arranged on the positioning column in housing, the divide-shut brake indicator
Upper end is provided with arc direction board, and combined floodgate instruction is provided with the indication window on the upper surface of arc direction board in corresponding housing
Mark and separating brake Warning Mark, and corresponded on divide-shut brake indicator and be provided with arc allocating slot, the lower end of rivet at the lower end of rivet
It is interspersed in arc allocating slot, and rivet acts with big connecting rod and stirs divide-shut brake indicator, realizes the division of divide-shut brake indicator
Lock indicates.Be provided with housing with the matched divide-shut brake indicator of rivet on big connecting rod, which can be real
The divide-shut brake instruction of existing breaker, thus user can be observed from indication window combined floodgate Warning Mark on divide-shut brake indicator or
Separating brake Warning Mark, it is convenient for the user to operate.
Brief description of the drawings
Fig. 1 is the utility model embodiment internal structure stereogram.
Fig. 2 is the utility model embodiment internal structure front view.
Fig. 3 is the installation diagram of the utility model embodiment housing and divide-shut brake indicator
Embodiment
As shown in Figures 1 to 3, the utility model embodiment is a kind of miniature circuit breaker, including housing 10, is arranged on housing 10
Interior operating mechanism 20, magnetictrip 11, arc-chutes 12, moving contact 13, static contact 14, bimetal leaf 15, divide-shut brake instruction
Part 16, the operating mechanism 20 include handle 21, tripping 22, U type connecting rod 23, the big connecting rod being rotatably arranged in housing 10
24th, lock 25, shaft 26, one end of U type connecting rod 23 are connected on handle 21, and the other end of U type connecting rod is connected to tripping 22
On one end, one end of big connecting rod 24 is connected to by rivet 27 on the other end of tripping 22, and the moving contact 13 is arranged on greatly
On the other end of connecting rod 24, and tension spring 17 is provided between the positioning column 101 in moving contact 13 and housing 10, the shaft 26
Lock 25, big connecting rod 24 are sequentially passed through, and the both ends of shaft 26 are installed in the location hole 102 in housing 10, the tripping
Banking stop 221 is provided with the side of 22 direction locks 25, is provided with the lock 25 and 221 matched lock of banking stop
Groove 251, latches and draw bar 28 is provided with 25, and one end of draw bar 28 is contradicted on bimetal leaf 15.As illustrated in fig. 1 and 2, institute
Place's limiting plate 103 between moving contact 13 and bimetal leaf 15 is corresponded in the housing 10 stated, when moving contact 13 is in open position,
Moving contact 13 is fitted on the side of limiting plate 103.Limiting plate can play position-limiting action to moving contact, ensure that moving contact acts
Reliability.As shown in figs. 1 and 3, the divide-shut brake indicator 16 is rotatably arranged on the positioning column 104 in housing 10, should
The upper end of divide-shut brake indicator 16 is provided with arc direction board 161, on the upper surface of arc direction board 161 in corresponding housing 10
Combined floodgate Warning Mark and separating brake Warning Mark are provided with indication window 105, and rivet 27 is corresponded on divide-shut brake indicator 16
Arc allocating slot 162 is provided with lower end, the lower end of rivet 27 is interspersed in arc allocating slot 162, and rivet 27 is dynamic with big connecting rod 24
Make and stir divide-shut brake indicator 16, realize the divide-shut brake instruction of divide-shut brake indicator 16.It is provided with housing and big connecting rod
On the matched divide-shut brake indicator of rivet, the divide-shut brake indicator can realize breaker divide-shut brake instruction so that user
The combined floodgate Warning Mark or separating brake Warning Mark on divide-shut brake indicator can be observed from indication window, it is convenient for the user to operate.
The miniature circuit breaker has the advantages that structure is simple, stable and reliable for performance, high breaking, and the handle of the operating mechanism, jump
Button, U type connecting rod, big connecting rod form a quadric chain, and the structure design of the operating mechanism is simple and simple operation, is operating
When, rotational handle, handle drives tripping, big connecting rod, lock to act by U type connecting rod, and the rich shaft of big connecting rod, lock rotates, greatly
Connecting rod drives moving contact action, and tension spring energy storage, so that moving contact and static contact quick-make.When breaker is in "on" position
When, there is overload short circuit electric current in circuit, and magnetictrip promotes rapidly lock release tripping, and tension spring releases energy, so that dynamic touch
Head disconnects rapidly with static contact.
Claims (3)
1. a kind of miniature circuit breaker, including housing, the operating mechanism being arranged in housing, magnetictrip, arc-chutes, dynamic touch
Head, static contact, bimetal leaf, divide-shut brake indicator, it is characterised in that：The operating mechanism includes handle, tripping, U-shaped company
Bar, big connecting rod, lock, shaft, one end of U type connecting rod are connected on handle, and the other end of U type connecting rod is connected to one end of tripping
On, by rivet interlacement on the other end of tripping, the moving contact is arranged on the other end of big connecting rod for one end of big connecting rod
On, and tension spring is provided between the positioning column in moving contact and housing, the shaft sequentially passes through lock, big connecting rod, and turns
The both ends of axis are installed in the location hole in housing, and banking stop is provided with the side of tripping direction lock, described
Be provided with lock with the matched locked groove of banking stop, draw bar is provided with lock, one end of draw bar is contradicted in bimetallic
On piece.
2. miniature circuit breaker according to claim 1, it is characterised in that：Moving contact and bimetallic are corresponded in the housing
Locate limiting plate between piece, when moving contact is in open position, moving contact is fitted on the side of limiting plate.
3. miniature circuit breaker according to claim 1, it is characterised in that：The divide-shut brake indicator is rotatably arranged on shell
On internal positioning column, the upper end of the divide-shut brake indicator is provided with arc direction board, is corresponded on the upper surface of arc direction board
Combined floodgate Warning Mark and separating brake Warning Mark are provided with indication window on housing, and rivet is corresponded on divide-shut brake indicator
Arc allocating slot is provided with lower end, the lower end of rivet is interspersed in arc allocating slot, and rivet acts with big connecting rod and stirs division
Lock indicator, realizes the divide-shut brake instruction of divide-shut brake indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721450595.6U CN207338281U (en) | 2017-11-03 | 2017-11-03 | A kind of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721450595.6U CN207338281U (en) | 2017-11-03 | 2017-11-03 | A kind of miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207338281U true CN207338281U (en) | 2018-05-08 |
Family
ID=62364563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721450595.6U Active CN207338281U (en) | 2017-11-03 | 2017-11-03 | A kind of miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207338281U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659206A (en) * | 2018-12-24 | 2019-04-19 | 厦门宏发开关设备有限公司 | A kind of small type circuit breaker operating mechanism and miniature circuit breaker |
-
2017
- 2017-11-03 CN CN201721450595.6U patent/CN207338281U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659206A (en) * | 2018-12-24 | 2019-04-19 | 厦门宏发开关设备有限公司 | A kind of small type circuit breaker operating mechanism and miniature circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325603 Wenzhou Daqiao Industrial Park, Yueqing City, Wenzhou City, Zhejiang Province Patentee after: Huanyu Hi Tech Co.,Ltd. Address before: 325603 Wenzhou Daqiao Industrial Park, Yueqing City, Wenzhou City, Zhejiang Province Patentee before: HUANYU GROUP ZHEJIANG HIGH-TECH Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |