CN207517637U - A kind of arc extinguishing structure suitable for hydraulic electromagnetic circuit breaker - Google Patents
A kind of arc extinguishing structure suitable for hydraulic electromagnetic circuit breaker Download PDFInfo
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- CN207517637U CN207517637U CN201721678885.6U CN201721678885U CN207517637U CN 207517637 U CN207517637 U CN 207517637U CN 201721678885 U CN201721678885 U CN 201721678885U CN 207517637 U CN207517637 U CN 207517637U
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- arc
- arc extinguishing
- circuit breaker
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- contact
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Abstract
The utility model is related to hydraulic electromagnetic circuit breaker technical fields, specifically disclose a kind of arc extinguishing structure suitable for hydraulic electromagnetic circuit breaker, including the arc extinguishing block (3) for being rotatably arranged on the internal contact stem (2) of case for circuit breaker (1) and being arranged in contact stem, the upper end of the arc extinguishing block is equipped with moving contact (4), and the lower part of the arc extinguishing block is rotatably connected to baffle (6) by shaft (5).The utility model has the characteristics that simple in structure, reliability preferably and the arc time is shorter.
Description
Technical field
The utility model is related to hydraulic electromagnetic circuit breaker technical fields, more particularly to a kind of to be suitable for hydraulic electromagnetic circuit breaker
Arc extinguishing structure.
Background technology
Breaker be refer to connect, carry and disjunction normal circuit under the conditions of electric current, also can be defined improper
Under the conditions of (such as overload, short circuit) connect, carry and the device for switching of breaking current within a certain period of time.Hydraulic pressure in breaker
Electro-magnetic circuit breaker is widely used in provides accurate protection to the circuit or electric component of equipment.Existing hydraulic electromagnetic circuit breaker,
When inside short circuit current occurs and starts separating brake, held since the moving contact and static contact of breaker can form one separated when
Mouthful, when short trouble occurs, because the electric arc thermal temperature generated when moving contact and static contact separate is high, easily from opening
The parts outside to opening are sprayed to generate electric arc calcination and then cause its damage, simultaneously because electric arc can outward be sprayed from opening,
Arc-chutes can not be timely entered, the meeting long period carries out calcination to moving contact and static contact, and the arc time is longer, reduces
The service life of moving contact and static contact weakens the breaking capacity of breaker.
Utility model content
The utility model provides a kind of suitable to solve the above-mentioned technical problem present in existing hydraulic electromagnetic circuit breaker
For the arc extinguishing structure of hydraulic electromagnetic circuit breaker, it has the characteristics that simple in structure, reliability preferably and the arc time is shorter.
The technical solution of the utility model：A kind of arc extinguishing structure suitable for hydraulic electromagnetic circuit breaker is set including rotation
Contact stem inside case for circuit breaker and the arc extinguishing block being arranged in contact stem, the upper end of the arc extinguishing block are equipped with moving contact,
The lower part of the arc extinguishing block is rotatably connected to baffle by shaft.The utility model is simple in structure, by being set in contact stem
Arc extinguishing block connects baffle in the lower rotational of arc extinguishing block, to cause when breaker separating brake when short-circuit, can by baffle and
When the closure of openings that will be formed between moving contact and circuit breaker static contact, prevent strong because being generated when moving contact and static contact separation
Big electric arc carries out calcination to the breaker component behind baffle, protects the safety of component outside baffle, and reliability is preferable；
Simultaneously during flapper, also to circuit breaker internal, increased air pressure is stopped baffle, and baffle stops air pressure
The reaction force formed so that a reversed draught head, reversed air pressure are formd between arc extinguishing block and the arc-chutes of breaker
Difference accelerates the speed that electric arc enters arc-chutes, reduces calcination of the electric arc to static contact and moving contact, reduces the arc time,
Improve the breaking capacity of breaker.
Preferably, the arc extinguishing block is L-shaped structure.The arc extinguishing block of L-shaped had not only facilitated the quick assembling between contact stem, but also
Installation moving contact is facilitated to realize the good contact between moving contact and static contact and separate, installation baffle is also facilitated to realize baffle
Flexible rotating, the arc extinguishing block structure of L-shaped is simplified, simple and practical.
Preferably, the arc extinguishing block is clamped or is riveted in contact stem.Arc extinguishing block can be fixed secured, when needed
It can also facilitate and be removed from contact stem, it is convenient, flexible.
Preferably, the baffle is channel-shaped；The side toward separate moving contact of notch.The baffle of channel-shaped can either
It is preferable to realize the closing that opening is formed between static contact and moving contact, and can preferably protect the component of baffle rear end
From the calcination of electric arc.
Preferably, the moving contact is cylindrical structure, the moving contact is equipped with through-hole, moving contact welding or
It is riveted on the upper end of arc extinguishing block.The moving contact of cylindrical shape with through-hole can be realized good with circuit breaker internal static contact
Contact so that the conducting of circuit is more sensitive with disconnecting.
The utility model has the advantages that：
(1) by setting arc extinguishing block in contact stem, baffle is connected in the lower rotational of arc extinguishing block, is come moving contact in time
The closure of openings formed between the static contact of breaker prevents electric arc from carrying out calcination to the breaker component behind baffle,
Reliability is preferable；
(2) baffle is to the barrier effect of air pressure, but also the space of a relative closure is formed between baffle and arc-chutes,
This space air pressure increases rapidly, and accelerates the speed that electric arc enters arc-chutes, reduces electric arc and burns to static contact and moving contact
It burns so that the arc time is less, improves the breaking capacity of breaker；
(3) connection mode for clamping or riveting facilitates fixation and dismounting of the arc extinguishing block in contact stem, convenient, flexible；Channel-shaped
Baffle can either preferably realize the closing that opening is formed between static contact and moving contact, and can preferably protect baffle
The component of rear end is damaged from the calcination of electric arc.
Description of the drawings
Fig. 1 is structure diagram when separating brake is broken down when the utility model uses in breaker；
Fig. 2 is enlarged drawing at A in Fig. 1；
Fig. 3 is state diagram when separating brake fault-free is installed using the vertical forward direction of breaker of the utility model；
Fig. 4 is state diagram when combined floodgate fault-free is installed using the vertical forward direction of breaker of the utility model；
Fig. 5 is state diagram when separating brake fault-free is installed using the horizontal forward direction of breaker of the utility model；
Fig. 6 is state diagram when combined floodgate fault-free is installed using the horizontal forward direction of breaker of the utility model；
Fig. 7 is state diagram when reversely installing separating brake fault-free vertically using the breaker of the utility model；
Fig. 8 is state diagram when reversely installing combined floodgate fault-free vertically using the breaker of the utility model.
Label in attached drawing for：1- shells, 2- contact stems, 3- arc extinguishing blocks, 4- moving contacts, 5- shafts, 6- baffles, 7- lead to
Hole, 8- magnetictrips, 9- tripping mechanisms, 10- static contacts, 11- arc-chutes, 12- locating pieces, 13- openings, the upper arc leading angles of 14-,
The upper arc spraying mouths of 15-, the upper flash barriers of 16-, arc spraying mouth under 17-, arc leading angle under 18-, 19- electromagnetic coils, 20- delay pipes, 21- ranks
Iron, 22- cams, 23- are latched, 24- stents, 25- rivets, 26- handles, 27- frames, flash barrier under 28-.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and examples, but is not intended as to the utility model
The foundation of limitation.
Embodiment 1.A kind of arc extinguishing structure suitable for hydraulic electromagnetic circuit breaker as shown in Figure 1, including being rotatably arranged on
Contact stem 2 and the arc extinguishing block 3 being arranged in contact stem inside case for circuit breaker 1, the upper end of arc extinguishing block is equipped with as shown in Figure 2
Moving contact 4, the lower part of arc extinguishing block are rotatably connected to baffle 6 by shaft 5.Arc extinguishing block is L-shaped structure.Arc extinguishing block clamps or riveting
In contact stem.Baffle is channel-shaped.Moving contact is cylindrical structure, and moving contact is equipped with through-hole 7, and moving contact is upper with arc extinguishing block
End is attached by way of welding or riveting.Magnetictrip 8 includes electromagnetic coil 19, delay pipe 20 and armature 21, prolongs
When pipe sleeve be connected on coil inside, armature is located at the top of delay pipe；Tripping mechanism includes cam 22, lock 23, stent 24 and riveting
Nail 25, cam is fixedly connected by rivet with stent, and cam is connect with handle, can be by handle drives, and the lower end of stent is with touching
Head rod is rotatablely connected, and lock is fixed on stent, and lock can fasten with the locked groove of enclosure.
Embodiment 2.The arc-suppressing method of a kind of arc extinguishing structure suitable for hydraulic electromagnetic circuit breaker, if breaker closing works
Occurs short circuit current in the process, then the electromagnetic coil 19 of circuit breaker internal inhales moving armature 21, and armature pushes the lock in tripping mechanism 9
Button 23 is detached from locked groove, opens tripping mechanism, and during opening of threading off, tripping mechanism passes through contact stem 2 and drives arc extinguishing block 3
Rotation so that the moving contact 4 of arc extinguishing block upper end and the static contact 10 of breaker separate, and cut off the current path of circuit breaker internal；
When moving contact and static contact separate, electric arc, electric arc heated arc-extinguishing chamber of circuit breaker are formed between moving contact and static contact
Air and arc extinguishing block in 11 are close to the air of arc-chutes side so that close to going out outside the air pressure and arc-chutes inside arc-chutes
The air pressure raising of arc block side, raised air pressure push baffle 6 on arc extinguishing block towards rotationally clockwise, and baffle is until touching
It stops operating when encountering the locating piece 12 inside case for circuit breaker, what baffle was formed when enclosing moving contact and static contact separately opens
Mouth 13 so that electric arc will not be sprayed from opening, to prevent breaker parts of the calcination baffle far from arc-chutes side；In air pressure
When promotion baffle rotates clockwise, air pressure gives baffle one active force, and baffle gives air pressure one reaction force, when baffle touches
When encountering locating piece, the space of a relative closure is formed between baffle and arc-chutes, this space air pressure increases rapidly so that
A reversed draught head is formed between baffle and arc-chutes, reversed draught head accelerates the speed that electric arc enters arc-chutes, subtracts
Calcination time of the electric arc to moving contact and static contact is lacked.
If not occurring short circuit current in the breaker closing course of work, baffle 6 be in installation direction straight down
Free state；Breaker can be transversely mounted as shown in Figure 5 and Figure 6 use, as shown in Figure 3 and Figure 4 vertical forward direction install and use,
It reversely installs and uses vertically as shown in Figure 7 and Figure 8, no matter breaker is used with which kind of mounting means, baffle is in nature always
Downward state, when short circuit current occurs, the air pressure impact that electric arc generates all can cause baffle to be moved towards locating piece 12,
A relatively closed space is formed between baffle and arc-chutes 11；The inside of shell 1 is fixed with frame 27, cam 22 and contact
Bar 2 is connect with frame member.
The operation principle of the utility model is：
Manual toggle handle 26 rotates clockwise so that breaker closing works, and handle band moving cam 22 acts, cam band
Dynamic lock 23 locks locked groove, and cam drives 24 downward actuation of stent, 2 opposing frame of supporting band movable contact rod during movement
On rotate down, moving contact 4 connects as contact stem rotates downwardly together with the static contact 10 being fixed in shell 1 of its underpart
Touch, static contact is the spheric structure of top bump, the top spherical surface of static contact can with the through-hole 7 on moving contact is good connects
Touch, realize the circuit communication of circuit breaker internal, the baffle 6 being connected at this time on arc extinguishing block 3 it is free always straight down from
By state；When there is short-circuit overload current, the electromagnetic coil 19 of magnetictrip 8 is due to the powerful electromagnetism of electromagnetic induction generation
Magnetization delay pipe 20, makes the pole shoe of delay pipe generate suction, armature 21 is attracted to rotate counterclockwise, linking is when turning to pole-shoe face
Lock is pushed to be detached from locked groove, when lock is detached from locked groove, handle starts return counterclockwise, and breaker starts point
Lock, handle are moved upwards when return by cam driven stent, the stent axis with movable contact rod on frame 27 again
Movement, under the drive of contact stem rotation, moving contact is gradually disengaged with static contact, is risen in moving contact with what static contact detached suddenly
Stage beginning can form strong electric arc between moving contact and static contact, air in electric arc heated arc-extinguishing chamber of circuit breaker 11 and go out
Air near arc block so that the air pressure outside the air pressure and arc-chutes inside arc-chutes close to arc extinguishing block side increases, raising
Air pressure push baffle on arc extinguishing block towards rotationally clockwise, until baffle touches the positioning inside case for circuit breaker
It stops operating during block 12, baffle encloses the opening 13 formed when moving contact and static contact separate so that electric arc will not be from opening
Place sprays breaker parts of the calcination baffle far from arc-chutes side；When air pressure pushes baffle to rotate clockwise, gear
Plate can give one reaction force of air pressure, and when baffle touches locating piece, reversed draught head is formed between baffle and arc-chutes,
Reversed draught head so that fast speed enters arc-chutes to electric arc in turn, reduces calcination of the electric arc to moving contact and static contact
Time, while arc leading angle 14 and lower arc leading angle 18 are respectively provided with close to the upper and lower part of arc extinguishing block side in arc-chutes,
Can electric arc preferably be led into arc-chutes, it is therefore prevented that Space sprawls of the electric arc outside arc-chutes, after arc-chutes are handled
Electric arc formed gas can be respectively from 15 He of upper arc spraying mouth on top of the arc-chutes far from arc extinguishing block side on flash barrier 16
Lower arc spraying mouth 17 on lower subordinate's flash barrier 28 scatters and disappears so that the indoor air pressure of arc extinguishing returns normal.
The utility model has the advantages that：(1) by setting arc extinguishing block in contact stem, in the lower part of arc extinguishing block
Baffle is rotatablely connected, come the closure of openings that will be formed between moving contact and the static contact of breaker in time, prevents electric arc to baffle
Breaker component below carries out calcination, and reliability is preferable；(2) baffle is to the barrier effect of air pressure, but also baffle and going out
The space of a relative closure is formed between arc chamber, this space air pressure increases rapidly, and accelerates the speed that electric arc enters arc-chutes,
Reduce calcination of the electric arc to static contact and moving contact so that the arc time is less, improves the breaking capacity of breaker；(3)
It clamps or the connection mode of riveting facilitates fixation and dismounting of the arc extinguishing block in contact stem, it is convenient, flexible；The baffle of channel-shaped can
Enough preferable realizations form the closing of opening, and can preferably protect first device of baffle rear end between static contact and moving contact
Part is damaged from the calcination of electric arc.
Claims (5)
1. a kind of arc extinguishing structure suitable for hydraulic electromagnetic circuit breaker, it is characterized in that：Including being rotatably arranged on case for circuit breaker (1)
Internal contact stem (2) and the arc extinguishing block (3) being arranged in contact stem, the upper end of the arc extinguishing block is equipped with moving contact (4), described
The lower part of arc extinguishing block is rotatably connected to baffle (6) by shaft (5).
2. a kind of arc extinguishing structure suitable for hydraulic electromagnetic circuit breaker according to claim 1, it is characterized in that：The arc extinguishing
Block is L-shaped structure.
3. a kind of arc extinguishing structure suitable for hydraulic electromagnetic circuit breaker according to claim 1 or 2, it is characterized in that：It is described
Arc extinguishing block is clamped or is riveted in contact stem.
4. a kind of arc extinguishing structure suitable for hydraulic electromagnetic circuit breaker according to claim 3, it is characterized in that：The baffle
For channel-shaped.
5. a kind of arc extinguishing structure suitable for hydraulic electromagnetic circuit breaker according to claim 3, it is characterized in that：It is described dynamic tactile
Head is cylindrical structure, and the moving contact is equipped with through-hole (7), the moving contact welding or the upper end for being riveted on arc extinguishing block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721678885.6U CN207517637U (en) | 2017-12-06 | 2017-12-06 | A kind of arc extinguishing structure suitable for hydraulic electromagnetic circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721678885.6U CN207517637U (en) | 2017-12-06 | 2017-12-06 | A kind of arc extinguishing structure suitable for hydraulic electromagnetic circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207517637U true CN207517637U (en) | 2018-06-19 |
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ID=62543675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721678885.6U Active CN207517637U (en) | 2017-12-06 | 2017-12-06 | A kind of arc extinguishing structure suitable for hydraulic electromagnetic circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207517637U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833812A (en) * | 2017-12-06 | 2018-03-23 | 浙江百事宝电器股份有限公司 | A kind of arc extinguishing structure and arc-suppressing method suitable for hydraulic electromagnetic circuit breaker |
| CN110211850A (en) * | 2019-07-05 | 2019-09-06 | 浙江百事宝电器股份有限公司 | Safety-type hydraulic electromagnetic circuit breaker and method for dividing |
-
2017
- 2017-12-06 CN CN201721678885.6U patent/CN207517637U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833812A (en) * | 2017-12-06 | 2018-03-23 | 浙江百事宝电器股份有限公司 | A kind of arc extinguishing structure and arc-suppressing method suitable for hydraulic electromagnetic circuit breaker |
| CN107833812B (en) * | 2017-12-06 | 2020-06-16 | 浙江百事宝电器股份有限公司 | Arc extinguishing structure and arc extinguishing method suitable for hydraulic electromagnetic circuit breaker |
| CN110211850A (en) * | 2019-07-05 | 2019-09-06 | 浙江百事宝电器股份有限公司 | Safety-type hydraulic electromagnetic circuit breaker and method for dividing |
| CN110211850B (en) * | 2019-07-05 | 2024-04-30 | 浙江百事宝电器股份有限公司 | Safety hydraulic electromagnetic circuit breaker and breaking method |
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