CN109801818A - Contact system with arc - Google Patents
Contact system with arc Download PDFInfo
- Publication number
- CN109801818A CN109801818A CN201910221561.7A CN201910221561A CN109801818A CN 109801818 A CN109801818 A CN 109801818A CN 201910221561 A CN201910221561 A CN 201910221561A CN 109801818 A CN109801818 A CN 109801818A
- Authority
- CN
- China
- Prior art keywords
- contact
- arc
- flash barrier
- moving contact
- hinged
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000004888 barrier function Effects 0.000 claims abstract description 59
- 230000003068 static effect Effects 0.000 claims abstract description 54
- 238000010891 electric arc Methods 0.000 claims abstract description 16
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The present invention 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 present invention, 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 present invention relates to a kind of contact system for low tension switch, in particular in miniature circuit breaker with arc
Contact system.
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, can separate in time when the present invention provides a kind of dynamic and static contact disjunction electric arc have no effect on it is dynamic and static
The contact system with arc of Contact Breaking/Making Operations lock.
In order to achieve the goal above, the present invention uses a kind of contact system with arc, including moving contact, static contact, move
Contact is provided with dynamic touching with a little the swinging within a certain angle for fulcrum on direction that extend internally in front of moving contact outer end
Point 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 flash barrier,
Flash barrier is made of insulation heat proof material, and the dispersal direction of the electric arc generated between moving contact and static contact is arranged in flash barrier
On, 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, on hinged end
It is 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 is arranged in the hinged end that the present invention is further arranged to the flash barrier, forms gear on flash barrier
Plate, baffle are connected on hinged end, and baffle extends to moving contact rear, and the space between arc end and baffle is arranged in moving contact
It is interior.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 pushes away arc end
From moving contact, when static contact, moving contact separate, moving contact outer end makes the dynamic touching of flash barrier quick insertion against the baffle of flash barrier
Between head.
The hinged end that the present invention is further arranged to the flash barrier is hinged on hinged seat, and protrusion is formed on hinged seat
Limited block corresponds to limited block on hinged end and forms locating piece, and locating piece is construed as limiting flash barrier rotational angle to limited block extension
Limit cooperation.The limited block of hinged seat limits the rotation of flash barrier by cooperating with locating piece, prevents rotation excessively cannot
It resets.
The hinged end side that the present invention is further arranged to the flash barrier is provided with fixing axle, and one end of torsional spring is connected to
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 present invention, which is further arranged to the flash barrier,.Arc to moving contact bending energy more
It is quickly inserted between dynamic and static contact.
The beneficial effects of the invention are as follows be inserted between dynamic and static contact to completely cut off electricity in dynamic and static contact disjunction using flash barrier
Arc improves arc extinguishing speed, improves breaking capacity.
The angle that the present invention 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 embodiment of the present invention.
Fig. 2 is the gate-dividing state main view of the embodiment of the present invention.
Fig. 3 is the gate-dividing state schematic diagram of the embodiment of the present invention.
Specific embodiment
The present invention is described further below in conjunction with attached drawing.
As shown in Figure 1-3, specific embodiments of the present invention are a kind of contact system with arc, including moving contact 2, stationary contact
First 3 and flash barrier 1, moving contact 2 with a little being swung within a certain angle for fulcrum on direction that extend internally, moving contact 2 it is 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, flash barrier 1 by
Insulation heat proof material is made, and the outside of moving contact 2, the electricity that flash barrier 1 is generated in moving contact 2 and static contact 3 is arranged in flash barrier 1
At arc dispersal direction, 1 one end of flash barrier forms hinged end 11, and the other end forms arc end 12, and the hinged end 11 of flash barrier 1 is arranged
It is hinged on hinged seat 4 in the hinged end 11 of the rear side of moving contact 2, flash barrier 1, forms baffle 15, baffle 15 1 on flash barrier 1
End is connected on hinged end 11, and 15 other end of baffle extends to 2 rear of moving contact, and the angle between arc end 12 and baffle 15 is
75 °~100 °, moving contact 2 is arranged in the space between arc end 12 and baffle 15, and the limited block of protrusion is formed on hinged seat 4
41, limited block 41 is corresponded on hinged end 11 and forms locating piece 14, and locating piece 14 is construed as limiting 1 turn of flash barrier to the extension of limited block 41
The limit cooperation of dynamic angle, 11 side of hinged end of flash barrier 1 are provided with fixing axle 5, torsional spring 13 are provided on hinged end 11, turn round
Spring 13 pushes 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 on flash barrier 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, flash barrier 1
Length ensures that arc end 12 will not contact static contact 3.
Fig. 1 is the closed state schematic diagram of the specific embodiment of the invention, is overlapped on the flash barrier 1 on moving contact 2 in dynamic touching
Overcome that the torsion of torsional spring 13 is driven, exits between static contact under first 2 promotion, does not affect dynamic and static contact (2,3), make,
Static contact (2,3) can normally closed.
Fig. 2 is the disjunction status diagram of the specific embodiment of the invention, when dynamic and static contact (2,3) disjunction, outside moving contact 2
The baffle 15 against flash barrier 1 is held, between making the dynamic and static contact of 1 quick insertion of flash barrier (2,3), meanwhile, flash barrier 1 is in torsional spring 13
Promotion under can protrude between dynamic and static contact (2,3), separate the electric arc between dynamic and static contact (2,3), extinguish electric arc quickly.
It is highly preferred embodiment of the present invention in above-mentioned specific embodiment, other obvious deformations are as changed flash barrier
Shape etc. is within the scope of the invention.
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 |
|---|---|---|---|
| CN201910221561.7A CN109801818A (en) | 2019-03-22 | 2019-03-22 | Contact system with arc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910221561.7A CN109801818A (en) | 2019-03-22 | 2019-03-22 | Contact system with arc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109801818A true CN109801818A (en) | 2019-05-24 |
Family
ID=66563954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910221561.7A Pending CN109801818A (en) | 2019-03-22 | 2019-03-22 | Contact system with arc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109801818A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571111A (en) * | 2019-09-02 | 2019-12-13 | 浙江正泰电器股份有限公司 | small-sized circuit breaker |
| CN113081298A (en) * | 2021-03-18 | 2021-07-09 | 甘肃省动物疫病预防控制中心 | Intelligent controllable temperature's animal doctor's sampling box |
| CN113851358A (en) * | 2021-08-04 | 2021-12-28 | 谢昕 | Arc isolation device with forced arc isolation function applied to circuit breaker |
| WO2022135046A1 (en) * | 2020-12-25 | 2022-06-30 | 浙江奥来电器有限公司 | Moving contact mechanism for circuit breaker |
| CN117524757A (en) * | 2024-01-05 | 2024-02-06 | 浙江正泰电器股份有限公司 | Switch contact and plug-in circuit breaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102486982A (en) * | 2010-12-03 | 2012-06-06 | 北京人民电器厂有限公司 | Breaker with forced flash barrier device |
| CN107359067A (en) * | 2017-08-23 | 2017-11-17 | 河北宝凯电气股份有限公司 | A kind of miniature circuit breaker with stronger arc extinguishing ability |
| CN207303016U (en) * | 2017-08-23 | 2018-05-01 | 河北宝凯电气股份有限公司 | A kind of miniature circuit breaker of strong breaking capacity |
| CN207303022U (en) * | 2017-08-23 | 2018-05-01 | 河北宝凯电气股份有限公司 | A kind of breaker of plastic casing with high breaking performance |
| CN209328828U (en) * | 2019-03-22 | 2019-08-30 | 乐清市速通电气有限公司 | Contact system with arc |
-
2019
- 2019-03-22 CN CN201910221561.7A patent/CN109801818A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102486982A (en) * | 2010-12-03 | 2012-06-06 | 北京人民电器厂有限公司 | Breaker with forced flash barrier device |
| CN107359067A (en) * | 2017-08-23 | 2017-11-17 | 河北宝凯电气股份有限公司 | A kind of miniature circuit breaker with stronger arc extinguishing ability |
| CN207303016U (en) * | 2017-08-23 | 2018-05-01 | 河北宝凯电气股份有限公司 | A kind of miniature circuit breaker of strong breaking capacity |
| CN207303022U (en) * | 2017-08-23 | 2018-05-01 | 河北宝凯电气股份有限公司 | A kind of breaker of plastic casing with high breaking performance |
| CN209328828U (en) * | 2019-03-22 | 2019-08-30 | 乐清市速通电气有限公司 | Contact system with arc |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571111A (en) * | 2019-09-02 | 2019-12-13 | 浙江正泰电器股份有限公司 | small-sized circuit breaker |
| WO2022135046A1 (en) * | 2020-12-25 | 2022-06-30 | 浙江奥来电器有限公司 | Moving contact mechanism for circuit breaker |
| CN113081298A (en) * | 2021-03-18 | 2021-07-09 | 甘肃省动物疫病预防控制中心 | Intelligent controllable temperature's animal doctor's sampling box |
| CN113851358A (en) * | 2021-08-04 | 2021-12-28 | 谢昕 | Arc isolation device with forced arc isolation function applied to circuit breaker |
| CN113851358B (en) * | 2021-08-04 | 2023-09-15 | 浙江创奇电气有限公司 | Arc isolation device with forced arc isolation function applied to circuit breaker |
| CN117524757A (en) * | 2024-01-05 | 2024-02-06 | 浙江正泰电器股份有限公司 | Switch contact and plug-in circuit breaker |
| CN117524757B (en) * | 2024-01-05 | 2024-05-17 | 浙江正泰电器股份有限公司 | Switch contact and plug-in circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190524 |
|
| RJ01 | Rejection of invention patent application after publication |