CN208422761U - A kind of arc-control device with semiclosed chamber - Google Patents
A kind of arc-control device with semiclosed chamber Download PDFInfo
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- CN208422761U CN208422761U CN201820983552.2U CN201820983552U CN208422761U CN 208422761 U CN208422761 U CN 208422761U CN 201820983552 U CN201820983552 U CN 201820983552U CN 208422761 U CN208422761 U CN 208422761U
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- arc
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Abstract
A kind of arc-control device with semiclosed chamber, it includes arc extinguishing grid pieces group (1), the arc extinguishing grid pieces group (1), which is located on the side of moving contact (2) and static contact (3) coupling, produces gas hood (4) equipped with semi-enclosed insulation, the lateral surface that the insulation produces gas hood (4) is equipped with the feeder connection (401) protruded into for moving contact (2) and static contact (3), medial surface is equipped with gas overflowing mouth (402), it is characterised in that: the openings of sizes of the feeder connection (401) and gas overfall (402) is shunk from inside to outside.This arc-control device gas exhausted material area is bigger, the gas of generation makes the hyperbar for being able to maintain a period of time in chamber, the gas in channel be discharged can continuously and healthily whithin a period of time in the semiclosed chamber that gas exhausted material is formed, to maintain high arc voltage, to achieve the purpose that fast arc extinction.
Description
Technical field
The utility model belongs to breaker technical field, is specifically exactly to be related to a kind of interrupter cartridge with semiclosed chamber
It sets.
Background technique
Breaker is the pith in electrical power distribution apparatus, is mainly used for industrial low-voltage power system, for connecting and dividing
The danger of electric current and protection circuit and power-supply device in disconnected mains-power circuit from failures such as overload, under-voltage, short circuit, single-phase earthings
Evil.The function that breaker carries out disjunction to overload or short circuit current is mainly to be completed by the arc-chutes being mounted in breaker
's.When the electric current that breaks down in circuit, and when current value is more than the setting protection scope of breaker, tripping mechanism movement makes
The dynamic and static contact of breaker disconnects rapidly, and the voltage between dynamic and static contact causes air dielectric electric discharge to generate high temperature at this time
Electric arc.Electric arc causes the air themperature in arc-control device to steeply rise in combustion to accelerate air ionization.Another party
Face under the promotion in magnetic field and hydrodynamic effect of the electric arc in arc-chutes, is separated into multiple short arcs by multiple arc grid, by gold
Belong to the deionization effect that arc piece strengthens electric arc, electric arc becomes smaller and voltage rapidly increases, and makes arc extinction.
With the development of the new energy industry such as photovoltaic, breaker rated operational voltage is required higher and higher.Arc voltage
It is higher, it is more advantageous for arc extinguishing.Existing arc extinguishing process is that sound contact two sides are formed narrow channel by gas exhausted material, when dynamic
Gas exhausted material causes air pressure in channel to increase to form air-blowing under high arc temperature effect when static contact disconnects, and keeps electric arc quick
It is mobile to achieve the purpose that arc extinguishing to arc extinguishing grid pieces direction.But gas exhausted material forms one two during this traditional arc extinguishing
Open channels are held, the gas in channel can quickly be discharged, and hyperbar can not continue to maintain, and cause arc voltage that can comparatively fast fall.
Chinese patent ZL201510770423.6 discloses a kind of moulded case circuit breaker with semiclosed arc-chutes.Its
Feature is to use semi-enclosed arc-chutes technology, i.e., according to the shape and the two of stationary contact head part and arc-chute in assembly
Positional relationship, the arc-extinguish chamber of two mutual mirror images docking is devised, for by stationary contact head part, arc-chute and Du Pont's cardboard
It is connected in inside the two arc-extinguish chambers, and then is integrated into an integral module, which strengthens the air-tightness of arc-chutes.
But it does not have the gas exhausted material of insulation to separate between contact and grid, air-blowing effect is poor.
Utility model content
Air-blowing effect of the purpose of this utility model aiming at the above-mentioned existing arc-control device with semiclosed chamber
Bad technological deficiency provides a kind of arc-control device with semiclosed chamber, and gas exhausted material area is bigger, and the gas of generation exists
In the semiclosed chamber that gas exhausted material is formed, makes the hyperbar for being able to maintain a period of time in chamber, make the gas in channel one
It can be discharged continuously and healthily in the section time, to maintain high arc voltage, to achieve the purpose that fast arc extinction.
Technical solution
In order to achieve the above technical purposes, a kind of arc-control device with semiclosed chamber of the utility model design, it
Including arc extinguishing grid pieces group, the arc extinguishing grid pieces group is located on the side of moving contact and static contact coupling to be produced equipped with semi-enclosed insulation
Gas hood, the lateral surface that the insulation produces gas hood are equipped with the feeder connection protruded into for moving contact and static contact, and medial surface is equipped with gas
Overfall, it is characterised in that: the openings of sizes of the feeder connection and gas overfall is shunk from inside to outside.
Further, the gas overflowing mouth is greater than the feeder connection.
Further, the insulation is produced gas hood and is made of gas exhausted material.
Beneficial effect
A kind of arc-control device with semiclosed chamber provided by the utility model, gas exhausted material area is bigger, generation
Gas makes the hyperbar for being able to maintain a period of time in chamber, makes the gas in channel in the semiclosed chamber that gas exhausted material is formed
Body can be discharged continuously and healthily whithin a period of time, to maintain high arc voltage, to achieve the purpose that fast arc extinction.
Detailed description of the invention
Attached drawing 1 is the schematic diagram of product structure of the utility model embodiment.
Attached drawing 2 is the decomposition diagram of the utility model embodiment.
Attached drawing 3 is the structural schematic diagram that insulation produces gas hood feeder connection and gas overfall in the utility model embodiment.
Attached drawing 4 is the structural schematic diagram that insulation produces gas hood in the utility model embodiment.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is described further.
Embodiment
As shown in attached drawing 1~4, a kind of arc-control device with semiclosed chamber, it includes arc extinguishing grid pieces group 1, described to go out
Arc grid group 1, which is located on the side that moving contact 2 and static contact 3 couple, produces gas hood 4 equipped with semi-enclosed insulation, and the insulation produces gas
The lateral surface of cover 4 is equipped with the feeder connection 401 protruded into for moving contact 2 and static contact 3, and medial surface is equipped with gas overflowing mouth 402,
Be characterized in that: the openings of sizes of the feeder connection 401 and gas overfall 402 is shunk from inside to outside.
The gas overflowing mouth 402 is greater than the feeder connection 401.
The insulation is produced gas hood 4 and is made of gas exhausted material.
The structure of the present embodiment can make arc-chutes chamber interior air pressure be higher than external pressure, form air-blowing using draught head
Effect improves disjunction.Whether the contraction of gas overflowing mouth 402 or the contraction of feeder connection 401, can prevent gas
Chamber quickly is left, achievees the effect that form draught head；
A kind of arc-control device with semiclosed chamber provided by the utility model, gas exhausted material area is bigger, generation
Gas makes the hyperbar for being able to maintain a period of time in chamber, makes the gas in channel in the semiclosed chamber that gas exhausted material is formed
Body can be discharged continuously and healthily whithin a period of time, to maintain high arc voltage, to achieve the purpose that fast arc extinction.
The utility model embodiment structure depicted in this specification institute accompanying drawings, ratio, size, quantity etc., only to cooperate
The bright revealed content of book is not intended to limit the utility model implementable so that those skilled in the art understands and reads
Qualifications, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size,
In the case where not influencing the effect of the utility model can be generated and the purpose that can reach, should all still fall in disclosed in the utility model
Technology contents obtain and can cover in the range of.Meanwhile in this specification it is cited as "upper", "lower", "left", "right", " in
Between ", " clockwise ", " counterclockwise " etc. term, be merely convenient to being illustrated for narration, rather than can be real to limit the utility model
The range applied, relativeness are altered or modified, under the content of no substantial changes in technology, can be real when being also considered as the utility model
The scope applied.
Claims (3)
1. a kind of arc-control device with semiclosed chamber, it includes arc extinguishing grid pieces group (1), and the arc extinguishing grid pieces group (1) is located at
Gas hood (4) are produced equipped with semi-enclosed insulation on the side of moving contact (2) and static contact (3) coupling, the insulation produces gas hood (4)
Lateral surface is equipped with the feeder connection (401) protruded into for moving contact (2) and static contact (3), and medial surface is equipped with gas overflowing mouth
(402), it is characterised in that: the openings of sizes of the feeder connection (401) and gas overfall (402) is shunk from inside to outside.
2. a kind of arc-control device with semiclosed chamber as described in claim 1, it is characterised in that: the gas overflowing mouth
(402) it is greater than the feeder connection (401).
3. a kind of arc-control device with semiclosed chamber as described in claim 1, it is characterised in that: the insulation produces gas hood
(4) it is made of gas exhausted material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820983552.2U CN208422761U (en) | 2018-06-22 | 2018-06-22 | A kind of arc-control device with semiclosed chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820983552.2U CN208422761U (en) | 2018-06-22 | 2018-06-22 | A kind of arc-control device with semiclosed chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208422761U true CN208422761U (en) | 2019-01-22 |
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ID=65107855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820983552.2U Active CN208422761U (en) | 2018-06-22 | 2018-06-22 | A kind of arc-control device with semiclosed chamber |
Country Status (1)
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| CN (1) | CN208422761U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597940A (en) * | 2018-06-22 | 2018-09-28 | 上海良信电器股份有限公司 | A kind of arc-control device with semiclosed chamber |
-
2018
- 2018-06-22 CN CN201820983552.2U patent/CN208422761U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597940A (en) * | 2018-06-22 | 2018-09-28 | 上海良信电器股份有限公司 | A kind of arc-control device with semiclosed chamber |
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