CN210349751U - All-round general type moulded case circuit breaker explosion chamber exhaust striking arc extinguishing system - Google Patents
All-round general type moulded case circuit breaker explosion chamber exhaust striking arc extinguishing system Download PDFInfo
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- CN210349751U CN210349751U CN201921709710.6U CN201921709710U CN210349751U CN 210349751 U CN210349751 U CN 210349751U CN 201921709710 U CN201921709710 U CN 201921709710U CN 210349751 U CN210349751 U CN 210349751U
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- arc extinguishing
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Abstract
The utility model relates to an all-round general type mould shell circuit breaker explosion chamber exhaust striking arc extinguishing system, it includes the casing that comprises base and well lid and sets up the explosion chamber in the casing, the both sides that the base is located the explosion chamber are provided with the flange, when well lid and base cooperate, form air guide channel between the outside of flange and the inner wall of well lid, the fabric board rear side of explosion chamber is equipped with insulating scraps of paper, insulating scraps of paper include scraps of paper body and are located the movable part at scraps of paper body center, movable part and the only one end of scraps of paper body are connected, movable part cover the aperture of fabric board, the air guide channel of side direction is in the side top of explosion chamber, can upwards actuate the flying arc direction through the gas port during the separating brake, cuts apart electric arc through the arc extinguishing chamber, discharges unnecessary gas simultaneously and reduces the atmospheric pressure in the explosion chamber.
Description
Technical Field
The utility model relates to an electrical apparatus protection field, concretely relates to all-round general type shell circuit breaker explosion chamber exhaust striking arc extinguishing system.
Background
The arc extinguish chamber of the existing plastic shell breaker is always difficult to overcome, and the switch cannot be normally switched on and off due to the fact that airflow generated by breaking rushes into the mechanism, and a face cover base is broken by serious people; the generated electric arc continuously consumes silver points and the arc extinguishing cover, so that the breaking capacity cannot be improved.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model provides an all-round general type mould shell circuit breaker explosion chamber exhaust striking arc extinguishing system.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an all-round general type moulds shell circuit breaker explosion chamber exhaust striking arc extinguishing system, its includes the casing that constitutes by base and well lid and sets up the explosion chamber in the casing, the both sides that the base is located the explosion chamber are provided with the flange, when well lid and base cooperation, form air guide channel between the outside of flange and the inner wall of well lid, the fabric board rear side of explosion chamber is equipped with insulating scraps of paper, insulating scraps of paper include scraps of paper body and are located the movable part at scraps of paper body center, movable part is connected with only one end of scraps of paper body, movable part covers the aperture of fabric board.
The joint of the flange and the base is an inclined plane.
The movable portion is integrally formed with the paper piece body.
Two sides of the insulation paper sheet extend outwards to form limiting parts.
The bottom of the insulating paper sheet is bent inwards.
The arc extinguishing chamber includes the arc extinguishing bars piece of a plurality of range upon range of settings, is used for the baffle of fixed arc extinguishing bars piece and is located the cloth board of arc extinguishing chamber rear side.
The bottom of arc extinguishing bars piece is equipped with the breach, and the breach bilateral symmetry staggered of adjacent arc extinguishing bars piece piles up the setting.
The base is provided with a slot, and the cloth plate and the insulating paper sheets are inserted into the slot.
The utility model has the advantages that: the side direction air guide channel is arranged above the side of the arc extinguish chamber, the flashover direction can be upwards driven through the air guide port during brake separating, electric arcs are cut through the arc extinguish chamber, meanwhile, redundant gas is discharged to reduce the air pressure in the arc extinguish chamber, and the unique middle cover and the base are combined to form the folding air guide channel to prevent sundries from being blown into the arc extinguish chamber to cause product safety problems.
Insulating scraps of paper opening design cooperation epoxy glass cloth board, form one-way exhaust passage, only can be from inside to outside exhaust, the circuit breaker normal during operation, insulating scraps of paper have played the effect that blocks debris such as outside dust, protection switch reliable work, when the circuit breaker suddenly when the disconnection of heavy current, inside atmospheric pressure grow, insulating scraps of paper are backed down, inside atmospheric pressure is adjusted in self-bleeding, and open position is in the oblique top of contact, can lead to the arc extinguishing cover with the flashover, the flashover is cut apart to the arc extinguishing cover of being convenient for.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged schematic view of the baffle of the present invention.
Fig. 3 is a schematic structural diagram of the base of the present invention.
Fig. 4 is a schematic structural diagram of the arc extinguish chamber of the present invention.
Fig. 5 is a schematic diagram of a local explosion of the arc extinguish chamber according to the present invention.
Fig. 6 is a schematic structural view of the insulation paper sheet and the cloth sheet of the present invention.
Fig. 7 is a schematic cross-sectional view of the insulation paper sheet and the cloth board of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The utility model provides an all-round general type mould shell circuit breaker explosion chamber exhaust striking arc extinguishing system, it includes the casing that comprises base 2 and well lid 1 and sets up the explosion chamber 3 in the casing, base 2 is located the both sides of explosion chamber 3 and is provided with flange 4, when well lid and base cooperate, form the air guide passageway between the outside of flange and the inner wall of well lid, when well lid covers on the base promptly, because have certain clearance between the inner wall of flange and well lid, and set up to inclined plane 5 in the junction of flange and base, make the air guide passageway between well lid and flange communicate with the outside through the inclined plane, and the air guide passageway of the air guide passageway lateral direction that is located the side top can be through the gas guide mouth that flange and well lid lateral wall formed during the separating brake to guide the arc direction upwards, cut apart electric arc through the arc extinguishing cover, discharge unnecessary arc simultaneously and reduce indoor atmospheric pressure, and the unique folding air guide channel formed by combining the middle cover and the base prevents sundries from blowing into the arc extinguish chamber to cause the product safety problem.
And the rear side of the cloth plate 33 of the arc extinguish chamber is provided with an insulating paper sheet 6, the insulating paper sheet 6 comprises a paper sheet body 61 and a movable part 62 positioned in the center of the paper sheet body, the movable part is connected with only one end of the paper sheet body, and the movable part covers the small holes of the cloth plate.
Insulating scraps of paper open-ended design cooperation cloth 33, this cloth is the epoxy glass cloth, a plurality of apertures distribute on it, form one-way exhaust passage, only can be from inside to outside exhaust, the circuit breaker normal during operation, insulating scraps of paper have played the effect that blocks debris such as outside dust, protection switch reliable work, when the circuit breaker suddenly through heavy current disconnection, inside atmospheric pressure grow, insulating scraps of paper are backed down, inside atmospheric pressure is adjusted in self-bleeding, and open position is in the oblique top of contact, can lead to the arc extinguishing chamber with the arcing, the arcing is cut apart to the arc extinguishing chamber of being convenient for.
The movable part and the paper sheet body are integrally formed and directly cut by using a piece of paper, so that the paper is convenient to process and has better paper mobility.
The two sides of the insulation paper sheet extend outwards to form a limiting part 63, the width of the limiting part is consistent with that of the cloth plate and matched with that of the slot, and the insulation paper sheet is limited in the slot to play a role in fixing and prevent the insulation paper sheet from separating.
The bottom of the insulating paper sheet is bent inwards to form a bent part 64, so that the insulating paper sheet can be further fixed when the cloth board is inserted into the slot.
The arc extinguishing chamber includes the arc extinguishing bars piece 31 of a plurality of range upon range of settings, is used for the baffle 32 of fixed arc extinguishing bars piece and is located the cloth 33 of arc extinguishing chamber rear side.
The bottom of arc extinguishing bars piece is equipped with the breach, and the breach bilateral symmetry staggered of adjacent arc extinguishing bars piece piles up the setting.
The two ends of the arc extinguishing grid piece are provided with salient points which are used for being matched with the partition plate and fixed by the partition plate.
And adopt asymmetric breach design, the flashover length of cutting apart under the same clearance is longer, and the protection silver point reduces the injury with the arc-extinguishing chamber that comprises arc extinguishing bars piece, and the arc-extinguishing chamber is closer apart from the sound contact distance, keeps 3-4 mm's effective distance, has both accelerated arc extinguishing speed and has reduced and draw the arc distance, prevents again that moving contact and arc-extinguishing chamber from appearing the fusion welding phenomenon.
The examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of the present invention.
Claims (8)
1. The utility model provides an all-round general type mould shell circuit breaker explosion chamber exhaust striking arc extinguishing system, its includes the casing that constitutes by base and well lid and sets up the explosion chamber in the casing, its characterized in that: the base is located the both sides of explosion chamber and is provided with the flange, when well lid and base cooperation, form the air guide passageway between the outside of flange and the inner wall of well lid, the fabric board rear side of explosion chamber is equipped with insulating scraps of paper, insulating scraps of paper include the scraps of paper body and are located the movable part at scraps of paper body center, movable part is connected with only one end of scraps of paper body, movable part covers the aperture of fabric board.
2. The omnidirectional universal type arc extinguishing system for arc extinguishing chamber of molded case circuit breaker according to claim 1, characterized in that: the joint of the flange and the base is an inclined plane.
3. The omnidirectional universal type arc extinguishing system for arc extinguishing chamber of molded case circuit breaker according to claim 1, characterized in that: the movable portion is integrally formed with the paper piece body.
4. The omnidirectional universal type arc extinguishing system for arc extinguishing chamber of molded case circuit breaker according to claim 1 or 3, characterized in that: two sides of the insulation paper sheet extend outwards to form limiting parts.
5. The omnidirectional universal type arc extinguishing system of a molded case circuit breaker arc extinguishing chamber for exhaust, striking and extinguishing of claim 4, wherein: the bottom of the insulating paper sheet is bent inwards.
6. The omnidirectional universal type arc extinguishing system for arc extinguishing chamber of molded case circuit breaker according to claim 1, characterized in that: the arc extinguishing chamber includes the arc extinguishing bars piece of a plurality of range upon range of settings, is used for the baffle of fixed arc extinguishing bars piece and is located the cloth board of arc extinguishing chamber rear side.
7. The omnidirectional universal type arc extinguishing system of a molded case circuit breaker arc extinguishing chamber for exhaust, striking and extinguishing of claim 6, wherein: the bottom of arc extinguishing bars piece is equipped with the breach, and the breach bilateral symmetry staggered of adjacent arc extinguishing bars piece piles up the setting.
8. The omnidirectional universal type arc extinguishing system for arc extinguishing chamber of molded case circuit breaker according to claim 1 or 6, characterized in that: the base is provided with a slot, and the cloth plate and the insulating paper sheets are inserted into the slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921709710.6U CN210349751U (en) | 2019-10-14 | 2019-10-14 | All-round general type moulded case circuit breaker explosion chamber exhaust striking arc extinguishing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921709710.6U CN210349751U (en) | 2019-10-14 | 2019-10-14 | All-round general type moulded case circuit breaker explosion chamber exhaust striking arc extinguishing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210349751U true CN210349751U (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921709710.6U Active CN210349751U (en) | 2019-10-14 | 2019-10-14 | All-round general type moulded case circuit breaker explosion chamber exhaust striking arc extinguishing system |
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| CN (1) | CN210349751U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112820604A (en) * | 2021-02-07 | 2021-05-18 | 浙江世隆电气科技有限公司 | Zero-flashover molded case circuit breaker |
-
2019
- 2019-10-14 CN CN201921709710.6U patent/CN210349751U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112820604A (en) * | 2021-02-07 | 2021-05-18 | 浙江世隆电气科技有限公司 | Zero-flashover molded case circuit breaker |
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