CN208352248U - A kind of arc quenching system of miniature circuit breaker - Google Patents
A kind of arc quenching system of miniature circuit breaker Download PDFInfo
- Publication number
- CN208352248U CN208352248U CN201821204382.XU CN201821204382U CN208352248U CN 208352248 U CN208352248 U CN 208352248U CN 201821204382 U CN201821204382 U CN 201821204382U CN 208352248 U CN208352248 U CN 208352248U
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- Prior art keywords
- arc
- shell
- circuit breaker
- miniature circuit
- slope
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Abstract
A kind of arc quenching system of miniature circuit breaker.The problem of mainly solving present breaker has certain height into nock due to arc-chutes, and common striking muscle can not use well.It is characterized by: the inner walls are equipped with first slope (11), the first slope bottom is correspondingly arranged with the striking slot, and the top of the first slope is correspondingly arranged with described into nock.The utility model provides a kind of arc quenching system of miniature circuit breaker, and first slope is equipped in shell for electric arc to be preferably oriented to arc-chutes, is enhanced the arc quenching effect of breaker.
Description
Technical field
The utility model relates to miniature circuit breaker fields, and in particular to a kind of arc quenching system of miniature circuit breaker.
Background technique
Breaker has the characteristics of advanced structure, reliable performance, strong breaking capacity and small size, and makees office building, lives
The illumination of residence and similar building, the overload of distribution line and equipment and short-circuit protection are used, and can also be used as route infrequently
On-off line operation is used with conversion.
Arc-extinguishing mechanism is equipped in breaker, which includes arc-chutes, striking muscle, magnetic conduction sheet etc., for touching dynamic
The electric arc generated between head and static contact, which is directed in arc-chutes, carries out arc extinguishing, and present has one into nock due to arc-chutes
Fixed height, common striking muscle can not use well.
Utility model content
In order to overcome the shortcomings of background technique, the utility model provides a kind of arc quenching system of miniature circuit breaker, main to solve
Present breaker determined since arc-chutes into nock have certain height, what common striking muscle can not use well
Problem.
The technical scheme adopted by the utility model is
A kind of arc quenching system of miniature circuit breaker, including shell, the interior shell includes being equipped with arc-chutes and moving contact, institute
It states inner walls and is equipped with several striking muscle, form at least two striking slots between the adjacent striking muscle, the arc-chutes include
Into nock, striking slot one end is correspondingly arranged with the moving contact, and the other end is correspondingly arranged with described into nock, the shell
Inner wall is equipped with first slope, and the first slope bottom is correspondingly arranged with the striking slot, the top of the first slope and institute
It states and is correspondingly arranged into nock.
Striking muscle one end extends on the slope and is equipped with to the second slope tilted into nock.
The striking muscle is equipped with fixed block, further includes magnetic conduction sheet and flash barrier, on the magnetic conduction sheet and the flash barrier
It is equipped with the mounting hole being engaged by clamping with the fixed block.
The shell includes the first shell and second shell being detachably connected.
The first shell is connected by screw to the second shell.
The mounting base for screw connection is equipped in the first shell, further include with
The moving contact is also correspondingly provided with static contact, and the static contact includes that first and first one end bending are formed
Second, first outer wall is equipped with stationary contact, and the mounting base peripheral outer wall is contacted with first inner wall.
Described second extends towards described into nock.
The beneficial effects of the utility model are: the utility model provides a kind of arc quenching system of miniature circuit breaker, shell
The interior first slope that is equipped with is enhanced the arc quenching effect of breaker for electric arc to be preferably oriented to arc-chutes.
Detailed description of the invention
Fig. 1 is the schematic internal view of the utility model one embodiment.
Fig. 2 is the enlarged diagram in Fig. 1 at A.
Fig. 3 is the stereoscopic schematic diagram of the arc-chutes of the utility model one embodiment.
Fig. 4 is the first shell, the perspective view of the explosion of magnetic conduction sheet and flash barrier of the utility model one embodiment.
Specific embodiment
Utility model is described further with reference to the accompanying drawing: as shown, a kind of arc quenching system of miniature circuit breaker,
It include being equipped with arc-chutes 2 and moving contact 4 including shell 1, in the shell, the inner walls are equipped with several striking muscle 3, adjacent
At least two striking slots 31 are formed between the striking muscle, the arc-chutes include into nock 21, striking slot one end and institute
It states moving contact to be correspondingly arranged, the other end is correspondingly arranged with described into nock 21, and the inner walls are equipped with first slope 11, described
First slope bottom is correspondingly arranged with the striking slot, and the top of the first slope is correspondingly arranged with described into nock.It is going out
Arc chamber, part electric arc or gas flow to arc-chutes from the striking slot, are entered by first slope bottom, then from first slope
Top outflow, due to be directed towards at the top of first slope arc-chutes into nock, preferable striking effect can be played.
In the present embodiment, as shown, striking muscle one end extends on the slope and is equipped with sticks up into nock
The second slope risen.Striking effect is further strengthened, and is that overall structure is more compact.
It in the present embodiment, further include magnetic conduction sheet 51 and flash barrier as shown, the striking muscle is equipped with fixed block 32
52, the mounting hole 511 being engaged by clamping with the fixed block is equipped on the magnetic conduction sheet and the flash barrier.When installation,
Flash barrier is installed after first magnetic conduction sheet is installed, structure is simple, easy for installation.
In the present embodiment, as shown, the shell includes the first shell 101 and second shell being detachably connected.
It is convenient for disassembly and assembly.
In the present embodiment, as shown, the first shell is connected by screw to the second shell.It uses herein
Screw connection, it is more convenient to use.
In the present embodiment, it as shown, being equipped with the mounting base 1011 for screw connection in the first shell, also wraps
It includes and is also correspondingly provided with static contact 6 with the moving contact, the static contact includes that first 61 and first one end bending are formed
Second 62, first outer wall is equipped with stationary contact, and 1011 peripheral outer wall of mounting base is contacted with first inner wall.Dynamic
When contact hits first, first inner wall plays the role of protection first, and the mounting base sheet by mounting base stress
Body plays the role of installing first shell and second shell, the reasonable utilization intracorporal space of shell, compact-sized, user
Just.
In the present embodiment, as shown, described second extends towards described into nock.Further strengthen the effect of striking
Fruit.
In the description of the present invention, it should be understood that term " length ", " width ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached
Orientation or positional relationship shown in figure, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of utility model.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
The embodiment being described with reference to the drawings is exemplary, it is intended to for explaining the utility model, and should not be understood as pair
The limitation of the utility model.Embodiment is not construed as limitations of the present invention, but any spirit based on the utility model
Improvements introduced should be all within the protection scope of the utility model.
Claims (7)
1. a kind of arc quenching system of miniature circuit breaker, including shell (1), the interior shell includes equipped with arc-chutes (2) and dynamic touching
Head (4), the inner walls are equipped with several striking muscle (3), form at least two striking slots (31) between the adjacent striking muscle,
The arc-chutes include into nock (21), and striking slot one end is correspondingly arranged with the moving contact, the other end and described into arc
Mouthful (21) are correspondingly arranged, it is characterised in that: the inner walls are equipped with first slope (11), the first slope bottom with it is described
Striking slot is correspondingly arranged, and the top of the first slope is correspondingly arranged with described into nock.
2. a kind of arc quenching system of miniature circuit breaker according to claim 1, it is characterised in that: prolong striking muscle one end
It extends on the slope and is equipped with to the second slope (211) tilted into nock.
3. a kind of arc quenching system of miniature circuit breaker according to claim 2, it is characterised in that: the striking muscle is equipped with
Fixed block (32), further includes magnetic conduction sheet (51) and flash barrier (52), be equipped on the magnetic conduction sheet and the flash barrier with it is described
The mounting hole (511) that fixed block is engaged by clamping.
4. a kind of arc quenching system of miniature circuit breaker according to claim 3, it is characterised in that: the shell includes removable
Unload the first shell (101) and second shell of connection.
5. a kind of arc quenching system of miniature circuit breaker according to claim 4, it is characterised in that: the first shell with
The second shell is connected by screw to.
6. a kind of arc quenching system of miniature circuit breaker according to claim 5, it is characterised in that: set in the first shell
Have for screw connection mounting base (1011), further include with
The moving contact is also correspondingly provided with static contact (6), and the static contact includes first (61) and first one end bending shape
At second (62), first outer wall be equipped with stationary contact, mounting base (1011) peripheral outer wall and first inner wall
Contact.
7. a kind of arc quenching system of miniature circuit breaker according to claim 6, it is characterised in that: described second towards institute
It states and extends into nock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821204382.XU CN208352248U (en) | 2018-07-27 | 2018-07-27 | A kind of arc quenching system of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821204382.XU CN208352248U (en) | 2018-07-27 | 2018-07-27 | A kind of arc quenching system of miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208352248U true CN208352248U (en) | 2019-01-08 |
Family
ID=64905531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821204382.XU Active CN208352248U (en) | 2018-07-27 | 2018-07-27 | A kind of arc quenching system of miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208352248U (en) |
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2018
- 2018-07-27 CN CN201821204382.XU patent/CN208352248U/en active Active
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