CN212084873U - Novel high-voltage arc extinguishing device - Google Patents
Novel high-voltage arc extinguishing device Download PDFInfo
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- CN212084873U CN212084873U CN202021119085.2U CN202021119085U CN212084873U CN 212084873 U CN212084873 U CN 212084873U CN 202021119085 U CN202021119085 U CN 202021119085U CN 212084873 U CN212084873 U CN 212084873U
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Abstract
The utility model discloses a novel high pressure arc extinguishing device, including the casing, static contact and moving contact, the both sides of the inherent static contact of casing and moving contact correspond respectively and are equipped with left arc extinguishing mechanism and right arc extinguishing mechanism, and left side arc extinguishing mechanism and right arc extinguishing mechanism all include the insulation board, and the front side of insulation board is towards static contact and moving contact, and the front side of insulation board is equipped with the arc extinguishing slit that extends to its rear side, and top-down is equipped with respectively on the lateral wall of insulation board from the left side of arc extinguishing slit, a plurality of air inlets that arc extinguishing slit was accesss to on right side and the rear side. The utility model has simple structure and does not occupy space, and the electric arc generated in the process of jointing or separating the static contact and the moving contact is led into the arc extinguishing slit of the insulating plate and can not be led to any other electric conductor; the air current blows into the arc extinguishing slit from a plurality of directions, blows the electric arc along the transverse direction fast, so that the electric arc is dispersed rapidly and disappears, and the use safety of the electric appliance is ensured.
Description
Technical Field
The utility model relates to an arc control device technical field specifically is a novel high-pressure arc control device.
Background
In a contact electric appliance, the process of making and breaking the current by the contact is often accompanied by the generation and extinction of an electric arc. The arc is a gas discharge phenomenon and has certain harm to electrical appliances. An arc is a form of gas discharge, which is classified into self-sustaining discharge and non-self-sustaining discharge, and belongs to arc discharge in gas self-sustaining discharge. Tests prove that when a circuit with voltage over 10V and current over 0.5A is opened or closed in the atmosphere, a mass of gas with extremely high temperature, extremely strong brightness and conductivity, called an electric arc, is generated in a contact gap (or arc gap). In the case of electrical appliances with contacts, the arc generated when the contacts open the circuit will burn the contacts and the insulation, and in severe cases, even cause short circuit between phases and explosion of the electrical appliances, thereby causing fire and endangering the safety of personnel and equipment.
For this reason, measures are taken to perform arc extinction, and the adopted device is called an arc extinction device. Most of the existing arc extinguishing devices are complex in structure, occupy space and cannot meet the requirements of simplification and miniaturization.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects and shortcomings of the prior art, and provides a novel high-voltage arc-extinguishing device which has simple structure and does not occupy space, and the electric arc generated in the process of jointing or separating the static contact and the moving contact is led into the arc-extinguishing slit of the insulating plate and can not be led to any other electric conductor; the air current blows into the arc extinguishing slit from a plurality of directions, blows the electric arc along the transverse direction fast, so that the electric arc is dispersed rapidly and disappears, and the use safety of the electric appliance is ensured.
The technical scheme of the utility model as follows:
the utility model provides a novel high-voltage arc extinguishing device, including the casing, set up the static contact in the casing and be connected with actuating mechanism to can under the actuating mechanism drive with the moving contact of static contact joint or separation, its characterized in that: the shell is internally provided with a left arc extinguishing mechanism and a right arc extinguishing mechanism which are respectively and correspondingly arranged on two sides of the static contact and the moving contact, the left arc extinguishing mechanism and the right arc extinguishing mechanism respectively comprise an insulating plate, the front side of the insulating plate faces towards the static contact and the moving contact, the front side of the insulating plate is provided with an arc extinguishing slit extending towards the rear side of the insulating plate, and the side wall of the insulating plate is respectively provided with a plurality of air inlets leading to the arc extinguishing slit from the left side, the right side and the rear side of the arc extinguishing slit from top to bottom.
The novel high-voltage arc extinguishing device is characterized in that: the both sides of casing are equipped with left through-hole and right through-hole respectively, and the outside of casing is equipped with left cylinder and right cylinder respectively, the piston rod of left side cylinder and right cylinder corresponds respectively and passes left through-hole and right through-hole after extend to the inside of casing, the piston rod of left side cylinder and right cylinder correspond respectively with the rear side looks fixed connection of insulation board.
The novel high-voltage arc extinguishing device is characterized in that: the two sides of the shell are respectively provided with a fixing seat, and the left air cylinder and the right air cylinder are respectively fixed on the corresponding fixing seats.
The novel high-voltage arc extinguishing device is characterized in that: the arc extinguishing slit comprises a horn mouth-shaped arc striking section positioned on the front side and an arc extinguishing section positioned on the rear side.
The novel high-voltage arc extinguishing device is characterized in that: the air inlets are respectively connected with an air inlet hose.
The utility model has the advantages that:
the utility model has simple structure and does not occupy space, and the electric arc generated in the process of jointing or separating the static contact and the moving contact is led into the arc extinguishing slit of the insulating plate and can not be led to any other electric conductor; the air current blows into the arc extinguishing slit from a plurality of directions, blows the electric arc along the transverse direction fast, so that the electric arc is dispersed rapidly and disappears, and the use safety of the electric appliance is ensured.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the middle insulating plate of the present invention.
Detailed Description
Referring to fig. 1 and 2, a novel high-voltage arc extinguishing device comprises a housing 1, a static contact 2 arranged in the housing 1 and a moving contact 3 connected with a driving mechanism and capable of being connected with or separated from the static contact 2 under the driving of the driving mechanism, a left arc extinguishing mechanism and a right arc extinguishing mechanism are respectively and correspondingly arranged on two sides of the static contact 2 and the moving contact 3 in the housing 1, each of the left arc extinguishing mechanism and the right arc extinguishing mechanism comprises an insulating plate 4, the front side of the insulating plate 4 faces the static contact 2 and the moving contact 3, an arc extinguishing slit 5 extending towards the rear side of the insulating plate 4 is arranged on the front side of the insulating plate 4, and a plurality of air inlets 6 leading to the arc extinguishing slit 5 from the left side, the right side and the rear side of the arc extinguishing slit.
The utility model discloses in, casing 1's both sides are equipped with left through-hole and right through-hole respectively, and casing 1's the outside is equipped with left cylinder and right cylinder 7 respectively, and left cylinder and right cylinder 7's piston rod corresponds the inside that extends to casing 1 after passing left through-hole and right through-hole respectively, and left cylinder and right cylinder 7's piston rod corresponds the rear side looks fixed connection with insulation board 4 respectively.
The quenching slot 5 comprises a flared arc ignition section 51 at the front side and a quenching section 52 at the rear side.
The plurality of air inlets 6 are connected to air inlet hoses, respectively.
The invention is further described below with reference to the accompanying drawings:
the moving contact 3 moves up and down in the housing 1 under the driving of a driving mechanism (not shown in the figure), so that the moving contact 3 is connected with or separated from the static contact 2, and an electric arc 9 is generated between two ends of the moving contact 3 and two ends of the static contact 2 in the process of connecting or separating the moving contact 3 and the static contact 2.
The generated electric arc 9 is introduced into the arc extinguishing slit 5, the air flow (which can be generated by compressed air and the like) for arc extinguishing blows into the arc extinguishing slit 5 from a plurality of directions through the plurality of air inlets 6, and the air flow direction is vertical to the arc column of the electric arc 9, so that the electric arc is blown away quickly along the transverse direction, the electric arc is dispersed quickly and disappears, and the use safety of the electric appliance is ensured.
In the working process, the two insulating plates positioned at the two sides of the static contact 2 and the moving contact 3 are correspondingly pushed to move towards each other to be close to each other or move away from each other in a back-to-back manner through the extension and retraction of the piston rods of the left air cylinder and the right air cylinder 7, and the distances between the insulating plates 4 and the static contact 2 and the moving contact 3 are adjusted to introduce electric arcs with different radians into the arc extinguishing slit 5.
The above embodiments are only described for the preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention, and the modifications and improvements made by the technical solutions of the present invention should fall into the protection scope of the present invention without departing from the design spirit of the present invention.
Claims (5)
1. The utility model provides a novel high-voltage arc extinguishing device, including the casing, set up the static contact in the casing and be connected with actuating mechanism to can under the actuating mechanism drive with the moving contact of static contact joint or separation, its characterized in that: the shell is internally provided with a left arc extinguishing mechanism and a right arc extinguishing mechanism which are respectively and correspondingly arranged on two sides of the static contact and the moving contact, the left arc extinguishing mechanism and the right arc extinguishing mechanism respectively comprise an insulating plate, the front side of the insulating plate faces towards the static contact and the moving contact, the front side of the insulating plate is provided with an arc extinguishing slit extending towards the rear side of the insulating plate, and the side wall of the insulating plate is respectively provided with a plurality of air inlets leading to the arc extinguishing slit from the left side, the right side and the rear side of the arc extinguishing slit from top to bottom.
2. The novel high-voltage arc extinguishing device according to claim 1, characterized in that: the both sides of casing are equipped with left through-hole and right through-hole respectively, and the outside of casing is equipped with left cylinder and right cylinder respectively, the piston rod of left side cylinder and right cylinder corresponds respectively and passes left through-hole and right through-hole after extend to the inside of casing, the piston rod of left side cylinder and right cylinder correspond respectively with the rear side looks fixed connection of insulation board.
3. A novel high-voltage arc extinguishing device according to claim 2, characterized in that: the two sides of the shell are respectively provided with a fixing seat, and the left air cylinder and the right air cylinder are respectively fixed on the corresponding fixing seats.
4. The novel high-voltage arc extinguishing device according to claim 1, characterized in that: the arc extinguishing slit comprises a horn mouth-shaped arc striking section positioned on the front side and an arc extinguishing section positioned on the rear side.
5. The novel high-voltage arc extinguishing device according to claim 1, characterized in that: the air inlets are respectively connected with an air inlet hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021119085.2U CN212084873U (en) | 2020-06-17 | 2020-06-17 | Novel high-voltage arc extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021119085.2U CN212084873U (en) | 2020-06-17 | 2020-06-17 | Novel high-voltage arc extinguishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212084873U true CN212084873U (en) | 2020-12-04 |
Family
ID=73557817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021119085.2U Active CN212084873U (en) | 2020-06-17 | 2020-06-17 | Novel high-voltage arc extinguishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212084873U (en) |
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2020
- 2020-06-17 CN CN202021119085.2U patent/CN212084873U/en active Active
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