CN208352247U - A kind of miniature circuit breaker that striking effect is good - Google Patents
A kind of miniature circuit breaker that striking effect is good Download PDFInfo
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- CN208352247U CN208352247U CN201821202415.7U CN201821202415U CN208352247U CN 208352247 U CN208352247 U CN 208352247U CN 201821202415 U CN201821202415 U CN 201821202415U CN 208352247 U CN208352247 U CN 208352247U
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- shell
- striking
- circuit breaker
- miniature circuit
- good
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Abstract
A kind of miniature circuit breaker that striking effect is good.The run-on tab of present breaker is mainly solved due to farther out from moving contact, it can not be well by the problem of electric arc directs away on moving contact.It is characterized by: the arc striking piece includes first (31) and second (32), second on piece is connected with bimetal leaf (321), described first is correspondingly arranged with the arc-chutes for striking, described first extension (311) being bonded including top with second part, the extension are correspondingly arranged with the moving contact.The utility model provides a kind of miniature circuit breaker that striking effect is good, and arc striking piece is equipped with extension, reduces arc striking piece at a distance from moving contact, strengthen striking effect, use is safer.
Description
Technical field
The utility model relates to Low Voltage Electrical Apparatus, and in particular to a kind of miniature circuit breaker that striking effect is good.
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-chutes, moving contact and run-on tab are equipped in breaker, run-on tab is carried out for electric arc to be directed in arc-chutes
Arc extinguishing, however present run-on tab is due to farther out from moving contact, can not well direct away electric arc on moving contact.
Utility model content
In order to overcome the shortcomings of background technique, the utility model provides a kind of miniature circuit breaker that striking effect is good, mainly
The run-on tab of present breaker is solved due to that farther out from moving contact, can not ask well by what electric arc on moving contact directed away
Topic.
Technical solution used by utility model is:
A kind of miniature circuit breaker that striking effect is good, including shell, include in the shell equipped with arc-chutes, arc striking piece and
Moving contact, the arc striking piece include first and second, and second on piece is connected with bimetal leaf, described first and institute
It states arc-chutes to be correspondingly arranged for striking, described first extension being bonded including top with second part is described
Extension is correspondingly arranged with the moving contact.
It with the distance between the extension is 2.5mm ~ 4mm when the moving contact is in open position.
The shell includes the first shell and second shell being detachably connected, and the first shell is equipped with fixing seat, described solid
Mounting groove is equipped in reservation, second two sides are equipped with side plate, and described side plate one end is protruded into the mounting groove and the peace
Tankage is engaged by clamping.
Retaining wall is correspondingly provided in the shell with the fixing seat, the retaining wall is equipped with the first convex block, the mounting groove
Inside it is equipped with the second convex block, second back and first convex block compress cooperation, second front end face and described the
Two convex blocks compress cooperation.
The cross section of first convex block is semicircle, and the cross section of second convex block is triangle.
It is additionally provided with baffle in the first shell, is correspondingly provided with first tiltedly with the extension upper surface on the baffle
Slope.
The screw base for connecting with second shell screw is equipped in the first shell, the screw base side is equipped with cross
Plate, forms clamping groove between the transverse slat and the first shell bottom interior wall, first tail end protrudes into the clamping groove
It is interior to be engaged by clamping with the clamping groove.
Described first and second is made into integration.
The inner walls are additionally provided with several striking muscle, and striking muscle one end is correspondingly arranged with moving contact, other end court
It is arranged to arc-chutes and is upturned equipped with the second slope.
The beneficial effect of utility model is: the utility model provides a kind of miniature circuit breaker that striking effect is good, striking
On piece is equipped with extension, reduces arc striking piece at a distance from moving contact, strengthens striking effect, use is safer.
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 enlarged diagram in Fig. 1 at B.
Fig. 4 is the shell sectional perspective schematic diagram of the utility model one embodiment.
Fig. 5 is the stereoscopic schematic diagram of the arc striking piece of the utility model one embodiment.
Specific embodiment
Utility model is described further with reference to the accompanying drawing: as shown, a kind of small-sized open circuit that striking effect is good
Device, including shell 1, the interior shell includes being equipped with arc-chutes 2, arc striking piece 3 and moving contact 4, and the arc striking piece includes first
31 and second 32, second on piece is connected with bimetal leaf 321, and described first is correspondingly arranged with the arc-chutes and is used for
Striking, described first extension 311 being bonded including top with second part, the extension and the moving contact
It is correspondingly arranged.Other components, such as buckle releaser, lock, tripping and bracket in breaker etc. are the prior art, no longer superfluous
It states.The utility model provides a kind of miniature circuit breaker that striking effect is good, and arc striking piece is equipped with extension, reduces arc striking piece
At a distance from moving contact, striking effect is strengthened, use is safer.
In the present embodiment, as shown, the distance between with the extension when moving contact is in open position
For 2.5mm ~ 4mm.The distance between moving contact and extension be between 2.5mm to 4mm be preferably, can preferably lead arc and
It will not influence the normal rotation of moving contact.
In the present embodiment, as shown, the shell includes the first shell 11 and second shell being detachably connected, described
One shell is equipped with fixing seat 110, mounting groove 111 is equipped in the fixing seat, second two sides are equipped with side plate 322, described
Side plate one end is protruded into the mounting groove and is engaged by clamping with the mounting groove.First shell and second shell can be connected by screw to,
Second on piece is equipped with side plate, and first shell is equipped with the mounting groove installed with side plate, and structure is simple, easy for installation.
In the present embodiment, as shown, being correspondingly provided with retaining wall 101, the retaining wall with the fixing seat in the shell
It is equipped with the first convex block 102, is equipped with the second convex block 111 in the mounting groove, second back is supported with first convex block
Press-fit, second front end face and second convex block compress cooperation.
Second is clamped in both direction by the first convex block and the second convex block, makes second to be not easy to shake, using effect
More preferably.
In the present embodiment, as shown, the cross section of first convex block be semicircle, second convex block it is transversal
Face is triangle.
In the present embodiment, as shown, being additionally provided with baffle 113 in the first shell, prolong on the baffle with described
Long 311 upper surface of portion is correspondingly provided with first slope 114.
In the present embodiment, as shown, being equipped with the screw for connecting with second shell screw in the first shell
Seat 115, the screw base side are equipped with transverse slat 116, form clamping groove between the transverse slat and the first shell bottom interior wall
117, first tail end is protruded into the clamping groove and is engaged by clamping with the clamping groove.Installation is more firm, using effect
More preferably.
In the present embodiment, as shown, described first and second is made into integration.Easily manufactured, structure is simple.
In the present embodiment, as shown, the inner walls are additionally provided with several striking muscle 15, striking muscle one end with
Moving contact is correspondingly arranged, and the other end is arranged towards arc-chutes and is upturned equipped with the second slope 151.Further increase striking
Effect makes electric arc pass through the second slope upwarped and enters arc-chutes.
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 (9)
1. a kind of miniature circuit breaker that striking effect is good, including shell (1), the interior shell includes being equipped with arc-chutes (2), striking
Piece (3) and moving contact (4), it is characterised in that: the arc striking piece includes first (31) and second (32), second on piece
It is connected with bimetal leaf (321), described first is correspondingly arranged with the arc-chutes for striking, and described first includes top
The extension (311) being bonded with second part, the extension are correspondingly arranged with the moving contact.
2. a kind of good miniature circuit breaker of striking effect according to claim 1, it is characterised in that: the moving contact is in
It with the distance between the extension is 2.5mm ~ 4mm when open position.
3. a kind of good miniature circuit breaker of striking effect according to claim 2, it is characterised in that: the shell includes can
The first shell (11) and second shell of dismantling connection, the first shell are equipped with fixing seat (110), and installation is equipped in the fixing seat
Slot (111), second two sides are equipped with side plate (322), and described side plate one end is protruded into the mounting groove and the mounting groove
It is engaged by clamping.
4. a kind of good miniature circuit breaker of striking effect according to claim 3, it is characterised in that: in the shell and institute
It states fixing seat to be correspondingly provided with retaining wall (101), the retaining wall is equipped with the first convex block (102), and it is convex that second is equipped in the mounting groove
Block (112), second back and first convex block compress cooperation, and second front end face is supported with second convex block
Press-fit.
5. a kind of good miniature circuit breaker of striking effect according to claim 4, it is characterised in that: first convex block
Cross section is semicircle, and the cross section of second convex block is triangle.
6. a kind of good miniature circuit breaker of striking effect according to claim 5, it is characterised in that: in the first shell
It is additionally provided with baffle (113), is correspondingly provided with first slope (114) with the extension (311) upper surface on the baffle.
7. a kind of good miniature circuit breaker of striking effect according to claim 6, it is characterised in that: in the first shell
Equipped with the screw base (115) for connecting with second shell screw, the screw base side is equipped with transverse slat (116), the transverse slat
Clamping groove (117) are formed between the first shell bottom interior wall, first tail end protrudes into the clamping groove and institute
State clamping groove clamping engagement.
8. a kind of good miniature circuit breaker of striking effect according to claim 7, it is characterised in that: described first and
Two are made into integration.
9. a kind of good miniature circuit breaker of striking effect according to claim 7, it is characterised in that: the inner walls are also
Equipped with several striking muscle (15), striking muscle one end is correspondingly arranged with moving contact, the other end towards arc-chutes be arranged and upwards
It tilts and is equipped with the second slope (151).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821202415.7U CN208352247U (en) | 2018-07-27 | 2018-07-27 | A kind of miniature circuit breaker that striking effect is good |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821202415.7U CN208352247U (en) | 2018-07-27 | 2018-07-27 | A kind of miniature circuit breaker that striking effect is good |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208352247U true CN208352247U (en) | 2019-01-08 |
Family
ID=64905356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821202415.7U Active CN208352247U (en) | 2018-07-27 | 2018-07-27 | A kind of miniature circuit breaker that striking effect is good |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208352247U (en) |
-
2018
- 2018-07-27 CN CN201821202415.7U patent/CN208352247U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |