CN209328828U - Contact system with arc - Google Patents
Contact system with arc Download PDFInfo
- Publication number
- CN209328828U CN209328828U CN201920375875.8U CN201920375875U CN209328828U CN 209328828 U CN209328828 U CN 209328828U CN 201920375875 U CN201920375875 U CN 201920375875U CN 209328828 U CN209328828 U CN 209328828U
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- China
- Prior art keywords
- contact
- arc
- flash barrier
- moving contact
- hinged
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a kind of contact systems with arc, including moving contact, static contact, flash barrier, moving contact with a little the swinging for fulcrum on direction that extend internally within a certain angle, the outer end of moving contact is provided with movable contact, stationary contact is provided on static contact, movable contact and stationary contact are oppositely arranged, flash barrier is made of insulation heat proof material, the outside of moving contact is arranged in flash barrier, at the electric arc dispersal direction that moving contact and static contact generate, flash barrier one end forms hinged end, the other end forms arc end, arc end is overlapped on the outer end of moving contact, torsional spring is provided on hinged end, torsional spring pushes arc end to moving contact.The utility model, which is inserted between dynamic and static contact using flash barrier in dynamic and static contact disjunction, completely cuts off electric arc, improves arc extinguishing speed, improves breaking capacity.
Description
Technical field
The utility model relates to a kind of contact system for low tension switch, in particular for the band in miniature circuit breaker every
The contact system of arc.
Background technique
Breaker is by the contact system of moving contact and static contact composition come the division of control circuit, moving contact and operation machine
Structure connection controls moving contact and the connection of static contact by operating mechanism and separates the connection and disjunction to realize breaker.It is disconnected
Device contact system in disjunction in road is electrification, and when moving contact and static contact disjunction can generate electric arc, and breaker uses arc-extinguish chamber
Accelerate arc extinction, but as the breaking current of breaker is higher and higher, the arc extinguishing ability of breaker also proposed more next
Higher requirement.
102486982 A of publication number CN discloses a kind of breaker with compulsory arc partitioning device, including shell, dynamic touching
Head, static contact, the shell are provided with the lever being made of using insulating materials the left arm of force, the right arm of force and fulcrum；In moving contact
During being separated with static contact, the left arm of force of the lever can because the right arm of force is pushed to the right by moving contact be inserted into moving contact with
In gap between static contact；In moving contact and static contact closing course, the left arm of force of the lever can be by moving contact to the left
It pushes and exits the gap between moving contact and static contact.When moving contact, which does disconnection to static contact, to be moved and generate gap, thick stick
The right arm of force of bar under the driving of moving contact to lower swing so that the gap that the left arm of force is tilted and is inserted between dynamic and static contact
In, to play the role of forcing partition electric arc, improve the breaking capacity of breaker.When moving contact does closing motion to static contact
When, the left arm of force of lever to lower swing, exits, the right side of lever under the driving of moving contact in gap driven, between static contact
The arm of force then tilts, to not influence the connection of circuit.But it needs to be pushed by moving contact in disjunction using lever, moving contact movement
Lever could be pushed to separate static contact when to certain position, at this moment moving contact has certain distance apart from static contact, generation
Electric arc has been brought out between dynamic and static contact, therefore lever cannot separate the electric arc between dynamic and static contact in time, can not be complete
Play the role of separating electric arc entirely.
Summary of the invention
In view of the above deficiencies, electric arc can be separated in time when the utility model provides a kind of dynamic and static contact disjunction to have no effect on
The contact system with arc of dynamic and static Contact Breaking/Making Operations lock.
In order to achieve the goal above, the utility model uses a kind of contact system with arc, including moving contact, stationary contact
Head, with a little the swinging within a certain angle for fulcrum on direction that extend internally, moving contact is provided with moving contact in front of outer end
Movable contact is provided with stationary contact on static contact, and movable contact and stationary contact are oppositely arranged, and the contact system with arc further includes arc
Plate, flash barrier are made of insulation heat proof material, and the diffused sheet of the electric arc generated between moving contact and static contact is arranged in flash barrier
Upwards, flash barrier one end forms hinged end, and the other end forms arc end, and arc end is overlapped on the outer end of moving contact, hinged end
On be provided with torsional spring, torsional spring pushes arc end to moving contact.
Flash barrier is arranged in the outer end of dynamic and static contact in above-mentioned technical proposal, and flash barrier is pressed on moving contact by torsional spring control
On, when moving contact is separated with static contact, flash barrier can protrude between dynamic and static contact under the promotion of torsional spring, separate dynamic and static touching
The outside of moving contact is arranged in electric arc between head, flash barrier, i.e. flash barrier is spread in the electric arc that moving contact and static contact generate
At direction, therefore, in moving contact and static contact disjunction, the electric arc of generation can rush at flash barrier, and torsional spring can ensure that flash barrier again
It can timely intervene between disjunction moving contact and static contact, realize quickly isolation electric arc, guarantee that the arc energy of contact system is quick
It disconnects and extinguishing；When moving contact and static contact are closed, the flash barrier being overlapped on moving contact can overcome under the promotion of moving contact
The torsion of torsional spring is driven, exits between static contact, enables dynamic and static contact normally closed.
The outside of moving contact, shape on flash barrier is arranged in the hinged end that the utility model is further arranged to the flash barrier
At baffle, baffle is connected on hinged end, and baffle extends to moving contact rear, and moving contact is arranged between arc end and baffle
In space.Setting can easily be inserted between dynamic and static contact on rear side of moving contact when moving contact disjunction moves back, and torsional spring is by arc
End pushes away moving contact, and when static contact, moving contact separate, moving contact outer end makes flash barrier quick insertion against the baffle of flash barrier
Between moving contact.
The hinged end that the utility model is further arranged to the flash barrier is hinged on hinged seat, is formed on hinged seat convex
Limited block out corresponds to limited block on hinged end and forms locating piece, and locating piece is construed as limiting flash barrier rotation to limited block extension
The limit of angle cooperates.The limited block of hinged seat by with locating piece cooperate limitation flash barrier rotation, prevent rotation excessively and
It is not capable of resetting.
The hinged end side that the utility model is further arranged to the flash barrier is provided with fixing axle, and one end of torsional spring connects
It connects in fixing axle, the other end is connected on flash barrier.Torsional spring provides torsion by fixing axle for flash barrier.
It is to the curved arc of moving contact that the utility model, which is further arranged to the flash barrier,.Arc is bent to moving contact
It can faster be inserted between dynamic and static contact.
The utility model has the beneficial effects that the interval of dynamic and static contact is inserted into dynamic and static contact disjunction using flash barrier
Insulation arc improves arc extinguishing speed, improves breaking capacity.
The angle that the utility model is further arranged between the arc end and baffle is 75 °~100 °.
Detailed description of the invention
Fig. 1 is the "on" position main view of the utility model embodiment.
Fig. 2 is the gate-dividing state main view of the utility model embodiment.
Fig. 3 is the gate-dividing state schematic diagram of the utility model embodiment.
Specific embodiment
The utility model is described further below in conjunction with attached drawing.
As shown in Figure 1-3, specific embodiment of the utility model is a kind of contact system with arc, including moving contact 2,
Static contact 3 and flash barrier 1, moving contact 2 is with a little the swinging within a certain angle for fulcrum on direction that extend internally, moving contact 2
Outer end be provided with movable contact 21, stationary contact 31 is provided on static contact 3, movable contact 21 and stationary contact 31 are oppositely arranged, arc
Plate 1 is made of insulation heat proof material, and the outside of moving contact 2 is arranged in flash barrier 1, and flash barrier 1 is produced in moving contact 2 and static contact 3
At raw electric arc dispersal direction, 1 one end of flash barrier forms hinged end 11, and the other end forms arc end 12, the hinged end of flash barrier 1
11 are arranged in the rear side of moving contact 2, and the hinged end 11 of flash barrier 1 is hinged on hinged seat 4, and baffle 15, gear are formed on flash barrier 1
15 one end of plate is connected on hinged end 11, and 15 other end of baffle extends to 2 rear of moving contact, between arc end 12 and baffle 15
Angle is 75 °~100 °, and moving contact 2 is arranged in the space between arc end 12 and baffle 15, and protrusion is formed on hinged seat 4
Limited block 41 corresponds to limited block 41 on hinged end 11 and forms locating piece 14, locating piece 14 to the extension of limited block 41 be construed as limiting every
The limit of 1 rotational angle of arc plate cooperates, and 11 side of hinged end of flash barrier 1 is provided with fixing axle 5, torsion is provided on hinged end 11
Spring 13, torsional spring 13 push arc end 12 to moving contact 2, and one end of torsional spring 13 is connected in fixing axle 5, and the other end is connected to arc
On plate 1, flash barrier 1 is to the curved arc of moving contact 2, and the arc end 12 of flash barrier 1 is overlapped on the outer end of moving contact 2, every
The length of arc plate 1 ensures that arc end 12 will not contact static contact 3.
Fig. 1 is the closed state schematic diagram of the utility model specific embodiment, and the flash barrier 1 being overlapped on moving contact 2 exists
Overcome that the torsion of torsional spring 13 is driven, exits between static contact under the promotion of moving contact 2, do not affect dynamic and static contact (2,3),
Make dynamic and static contact (2,3) can normally closed.
Fig. 2 is the disjunction status diagram of the utility model specific embodiment, when dynamic and static contact (2,3) disjunction, moving contact
2 outer ends are against the baffle 15 of flash barrier 1, between making the dynamic and static contact of 1 quick insertion of flash barrier (2,3), meanwhile, flash barrier 1 is in torsional spring
It can be protruded under 13 promotion between dynamic and static contact (2,3), separate the electric arc between dynamic and static contact (2,3), put out electric arc quickly
It goes out.
It is the most preferred embodiment of the utility model in above-mentioned specific embodiment, other obvious deformations are as changed arc
The shape of plate etc. is within the protection scope of the present utility model.
Claims (6)
1. a kind of contact system with arc, including moving contact, static contact, moving contact with extend internally on direction a little for branch
Point is swung within a certain angle, and movable contact is provided in front of moving contact outer end, is provided with stationary contact on static contact, movable contact and
Stationary contact is oppositely arranged, it is characterised in that: the contact system with arc further includes flash barrier, and flash barrier is by insulation heat proof material system
At, flash barrier is arranged on the dispersal direction of the electric arc generated between moving contact and static contact, and flash barrier one end forms hinged end,
The other end forms arc end, and arc end is overlapped on the outer end of moving contact, torsional spring is provided on hinged end, torsional spring pushes away arc end
To moving contact.
2. the contact system according to claim 1 with arc, it is characterised in that: the hinged end setting of the flash barrier exists
The outside of moving contact forms baffle on flash barrier, and baffle is connected on hinged end, and baffle extends to moving contact rear, moving contact
It is arranged in the space between arc end and baffle.
3. the contact system according to claim 1 or 2 with arc, it is characterised in that: cut with scissors the hinged end of the flash barrier
It connects on hinged seat, forms the limited block of protrusion on hinged seat, limited block is corresponded on hinged end and forms locating piece, locating piece is to limit
Position block extends the limit cooperation for being construed as limiting flash barrier rotational angle.
4. the contact system according to claim 1 or 2 with arc, it is characterised in that: the hinged end one of the flash barrier
Side is provided with fixing axle, and one end of torsional spring is connected in fixing axle, and the other end is connected on flash barrier.
5. the contact system according to claim 1 or 2 with arc, it is characterised in that: the flash barrier is to moving contact
Curved arc.
6. the contact system according to claim 1 with arc, it is characterised in that: the folder between the arc end and baffle
Angle is 75 °~100 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920375875.8U CN209328828U (en) | 2019-03-22 | 2019-03-22 | Contact system with arc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920375875.8U CN209328828U (en) | 2019-03-22 | 2019-03-22 | Contact system with arc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209328828U true CN209328828U (en) | 2019-08-30 |
Family
ID=67733126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920375875.8U Active CN209328828U (en) | 2019-03-22 | 2019-03-22 | Contact system with arc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209328828U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109801818A (en) * | 2019-03-22 | 2019-05-24 | 乐清市速通电气有限公司 | Contact system with arc |
-
2019
- 2019-03-22 CN CN201920375875.8U patent/CN209328828U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109801818A (en) * | 2019-03-22 | 2019-05-24 | 乐清市速通电气有限公司 | Contact system with arc |
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