阅读说明：本技术 一种消弧线圈 (Arc suppression coil ) 是由 姚创元 于 2020-06-09 设计创作，主要内容包括：本发明提出了一种消弧线圈。本发明涉及电力设备技术领域。本发明的方案：包括第一灭弧单元和第二灭弧单元,第一灭弧单元和第二灭弧单元均为腔体,第二灭弧单元位于第一灭弧单元内,第一灭弧单元设置有第一开口,第二灭弧单元设置有第二开口,第一开口与第二开口匹配。本发明通过第一灭弧单元和第二灭弧单元大大降低了电弧的危害,切断电流后电弧会被吸收到第一灭弧单元和第二灭弧单元,动刀就能安全的分开到位,防止了开关的烧毁。(The invention provides an arc suppression coil. The invention relates to the technical field of power equipment. The scheme of the invention is as follows: including first arc extinguishing unit and second arc extinguishing unit, first arc extinguishing unit and second arc extinguishing unit are the cavity, and second arc extinguishing unit is located first arc extinguishing unit, and first arc extinguishing unit is provided with first opening, and second arc extinguishing unit is provided with the second opening, and first opening matches with the second opening. The invention greatly reduces the harm of electric arc through the first arc extinguishing unit and the second arc extinguishing unit, the electric arc can be absorbed into the first arc extinguishing unit and the second arc extinguishing unit after the current is cut off, the movable knife can be safely separated in place, and the burning of the switch is prevented.)

1. The utility model provides an arc extinguishing coil, its characterized in that, includes first arc extinguishing unit and second arc extinguishing unit, first arc extinguishing unit with second arc extinguishing unit is the cavity, second arc extinguishing unit is located in the first arc extinguishing unit, first arc extinguishing unit is provided with first opening, second arc extinguishing unit is provided with the second opening, first opening with the second opening matches.

2. An arc suppressing coil as recited in claim 1 wherein said first arc suppressing unit is an arc suppressing grid and said second arc suppressing unit is an arc suppressing grid.

3. An arc suppressing coil as recited in claim 1 wherein one end of said second arc suppressing unit is connected to an inner wall of said first arc suppressing unit, and an arc suppressing chamber is formed between said first arc suppressing unit and said second arc suppressing unit.

4. An arc suppressing coil as recited in claim 1 wherein said first arc suppressing unit is connected to an inflatable cabinet, said first arc suppressing unit is located in said inflatable cabinet, said inflatable cabinet is provided with an inflation inlet, said inflation inlet is connected to an insulated gas outlet.

5. An arc suppression coil as claimed in claim 4, wherein said insulated gas output is a sulfur hexafluoride output.

6. An arc suppressing coil as recited in claim 1 wherein said second arc suppressing unit is connected to a stationary blade assembly and a moving blade assembly, respectively.

7. An arc suppressing coil as recited in claim 6 wherein one end of said static blade assembly is provided with a static blade portion, said static blade portion respectively penetrates through said first arc suppressing unit and said second arc suppressing unit, said static blade portion is located in said second arc suppressing unit.

8. An arc suppressing coil as set forth in claim 6 wherein said moving blade assembly includes a moving blade portion and a connecting portion, said moving blade portion having a size matching said first opening and said second opening, and a driving member for driving said moving blade portion to reciprocate being disposed between said moving blade portion and said connecting portion.

9. An arc suppressing coil as set forth in claim 8 wherein said transmission member is a cylinder, one end of said cylinder being connected to said movable blade portion, the other end of said cylinder being connected to said connecting portion.

10. An arc suppressing coil as set forth in claim 6 wherein the exterior material of said stationary blade assembly and said moving blade assembly is epoxy resin.

Technical Field

The invention relates to the technical field of power equipment, in particular to an arc suppression coil.

Background

An arc is a gas discharge phenomenon, a momentary spark generated by current passing through some insulating medium (such as air), an arc is a self-sustaining gas conduction (electrical conduction in ionized gas), most of carriers are electrons generated by primary electron emission, and when a switch cuts off a large current, the arc often burns the switch, and the like.

At present, an arc suppression coil is adopted for eliminating electric arcs, the arc suppression coil enables the electric arcs to be extinguished automatically, and the overload capacity is limited when large current is cut off in the prior art; if the switch is forcibly disconnected, the whole switch can be burnt.

Disclosure of Invention

The invention aims to provide an arc suppression coil which can improve the normal current breaking capacity and the short-circuit overload capacity of the whole load switch.

The embodiment of the invention is realized by the following steps:

the embodiment of the application provides an arc extinguishing coil, including first arc extinguishing unit and second arc extinguishing unit, first arc extinguishing unit and second arc extinguishing unit are the cavity, and second arc extinguishing unit is located first arc extinguishing unit, and first arc extinguishing unit is provided with first opening, and second arc extinguishing unit is provided with the second opening, and first opening matches with the second opening.

In some embodiments of the invention, the first arc extinguishing unit is an arc extinguishing grid, and the second arc extinguishing unit is an arc extinguishing grid.

In some embodiments of the invention, one end of the second arc extinguishing unit is connected to an inner wall of the first arc extinguishing unit, and an arc extinguishing cavity is formed between the first arc extinguishing unit and the second arc extinguishing unit.

In some embodiments of the present invention, the first arc extinguishing unit is connected to an air charging cabinet, the first arc extinguishing unit is located in the air charging cabinet, and an air charging port is disposed on the air charging cabinet and connected to an insulating gas output end.

In some embodiments of the invention, the insulating gas output terminal is a sulfur hexafluoride output terminal.

In some embodiments of the present invention, the second arc extinguishing unit is connected to the stationary blade assembly and the movable blade assembly respectively.

In some embodiments of the present invention, one end of the stationary blade assembly is provided with a stationary blade portion, the stationary blade portion respectively penetrates through the first arc extinguishing unit and the second arc extinguishing unit, and the stationary blade portion is located in the second arc extinguishing unit.

In some embodiments of the present invention, the movable blade assembly includes a movable blade portion and a connecting portion, the size of the movable blade portion matches the size of the first opening and the size of the second opening, and a transmission member for driving the movable blade portion to reciprocate is disposed between the movable blade portion and the connecting portion.

In some embodiments of the present invention, the driving member is a cylinder, one end of the cylinder is connected to the movable knife portion, and the other end of the cylinder is connected to the connecting portion.

In some embodiments of the present invention, the exterior material of the stationary blade assembly and the movable blade assembly is epoxy resin.

Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects:

the utility model provides an arc extinguishing coil, includes first arc extinguishing unit and second arc extinguishing unit, and first arc extinguishing unit and second arc extinguishing unit are the cavity, and second arc extinguishing unit is located first arc extinguishing unit, and first arc extinguishing unit is provided with first opening, and second arc extinguishing unit is provided with the second opening, and first opening matches with the second opening.

The arc suppression coil includes first arc extinguishing unit and second arc extinguishing unit, and first arc extinguishing unit and second arc extinguishing unit are the cavity, and first opening and second opening are located same horizontal plane and size and match each other.

When the movable knife acts and the movable knife is far away from the static knife to cut off large current during working, the overload capacity is limited, if the arc switch is forcibly disconnected, the whole switch can be burnt, the overload capacity of the arc switch can be increased by arranging the first arc extinguishing unit and the second arc extinguishing unit, can absorb more electric arcs, the electric arcs are absorbed to the second arc extinguishing unit due to the relation of potential difference when the electric arcs are generated, the safety problem caused by overlarge electric arcs is protected by the absorption of the electric arcs, meanwhile, the electric arc can be absorbed into the first arc extinguishing unit, the first arc extinguishing unit can absorb a large amount of electric arc to reduce the possibility of danger caused by the electric arc, through the harm of first arc extinguishing unit and second arc extinguishing unit greatly reduced electric arc, electric arc can absorb first arc extinguishing unit and second arc extinguishing unit after cutting off the electric current, moves the sword and just can safe separately target in place, has prevented burning of switch.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of a load switch applied to an arc suppression coil according to an embodiment of the present invention;

FIG. 2 is a schematic view of the connection between the moving blade portion and the stationary blade portion in the arc suppression coil according to the embodiment of the present invention;

fig. 3 is a schematic diagram of an arc suppression coil according to an embodiment of the invention.

The following are marked in the figure: 1-a first arc extinguishing unit, 2-a second arc extinguishing unit, 3-a static knife part, 4-a movable knife part, 5-an inner cavity, 6-an air cylinder and 7-a connecting part.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "horizontal", "inner", "outer", etc. are used for indicating the orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships conventionally arranged when the products of the present invention are used, the description is merely for convenience of describing the present invention and simplifying the description, but the indication or suggestion that the referred devices or elements must have specific orientations, be constructed and operated in specific orientations, and thus, the present invention should not be construed as being limited. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the term "horizontal" and the like, if present, does not require that the components be absolutely horizontal or overhanging, but may be slightly inclined.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.