CN220138238U - Free subassembly, arc extinguishing system and circuit breaker disappear - Google Patents

Abstract

The utility model provides a dissociation component, an arc extinguishing system, a circuit breaker, a contact system and an arc blocking piece. The dissociation subassembly includes a plurality of dissociation boards of along the range upon range of setting of first direction, and the dissociation board includes the dissociation portion and the insulating part of along the adjacent setting of second direction, and the dissociation portion is used for adsorbing charged particle that disappears, and first direction and second direction intersect. Wherein the projection of the dissociation portion of one of the at least two dissociation plates in the first direction at least partially overlaps the projection of the insulation portion in the other in the first direction. According to the embodiment of the utility model, the dissociation parts and the insulation parts in different dissociation plates are mutually laminated in the first direction, so that the insulation parts can be positioned in an arc moving path, the adsorption capacity to charged particles is improved by means of the insulation parts, the probability of the arc flying out of the power distribution electric appliance is reduced, and the use safety is improved.

Description

Free subassembly, arc extinguishing system and circuit breaker disappear

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a dissociation component, an arc extinguishing system and a circuit breaker.

Background

The existing deionization technology is to place a woven metal filter screen at the air outlet of the power distribution electric appliance, thereby absorbing conductive particles in the air. However, as the voltage in the power distribution system is further increased, the concentration of charged particles generated by collision free and thermal free in the air is too high, when the charged particles move to the metal filter screen, the charged particles can be directly conducted by the metal filter screen, and the electric arc breaks down by the metal filter screen, so that the safe and stable operation of the circuit system is damaged.

Disclosure of Invention

The embodiment of the utility model provides a dissociation component, an arc extinguishing system and a circuit breaker, which can improve safety.

The embodiment of the utility model provides a dissociation component, which comprises a plurality of dissociation plates stacked along a first direction, wherein the dissociation plates comprise dissociation parts and insulation parts, the dissociation parts are adjacently arranged along a second direction, the dissociation parts are used for adsorbing charged particles, and the first direction is intersected with the second direction. Wherein the projection of the dissociation portion of one of the at least two dissociation plates in the first direction at least partially overlaps the projection of the insulation portion in the other in the first direction.

In some embodiments, the projected portions of at least some of the cancel portions in adjacent cancel plates in the first direction are disposed overlapping.

In some embodiments, the deionization plate includes a plurality of deionization portions disposed at intervals, and the insulating portion is disposed between adjacent deionization portions.

In some embodiments, the at least two deionization plates include a plurality of first deionization plates and a second deionization plate positioned between adjacent first deionization plates, the different first deionization plates being identical in structure.

In some embodiments, the insulating portion surrounds at least a portion of the outer circumference of the deionization portion.

In some embodiments, the plurality of deionization portions are arranged in an array.

In some embodiments, the dissociation component further includes a spacer disposed between adjacent dissociation plates, the spacer having a through-hole extending therethrough along a first direction, a projection of the through-hole in the first direction at least partially overlapping a projection of the dissociation portion in the adjacent dissociation plate in the first direction.

In some embodiments, the projections of the dissociation portions in the adjacent two dissociation plates in the first direction are arranged in a staggered manner.

In some embodiments, the number of through holes is a plurality, and the plurality of through holes are arrayed along the second direction and the third direction.

In a second aspect, an embodiment of the present utility model provides an arc extinguishing system, including the dissociation component in any of the foregoing embodiments, and the arc extinguishing chamber is connected with the dissociation component.

In a third aspect, embodiments of the present utility model provide a circuit breaker comprising the deionization assembly of any one of the preceding embodiments.

In some embodiments, a circuit breaker includes a housing, a contact arrangement, and an arc chute arrangement. The housing has a receiving cavity comprising a first arcing zone and a second arcing zone arranged along a first direction, and the contact arrangement is located in the receiving cavity on a side of the first arcing zone facing away from the second arcing zone.

The arc extinguishing device comprises a first arc extinguishing chamber located in a first arc extinguishing zone, a second arc extinguishing chamber located in a second arc extinguishing zone and an arc guide piece, wherein the projection of the first arc extinguishing chamber and the projection of the second arc extinguishing chamber in a first direction are at least partially overlapped, and the first arc extinguishing chamber and the projection of the second arc extinguishing chamber can be electrically connected through the arc guide piece. The shell is provided with an air outlet, and the dissociation component is arranged at the air outlet.

The embodiment of the utility model provides a dissociation component, an arc extinguishing system and a circuit breaker, when high voltage exists in a power distribution electrical appliance, during high voltage breaking, an arc easily flies out and leaves the power distribution electrical appliance along a first direction due to overlarge energy, at the moment, the dissociation part is possibly a conductor connected with the arc due to being made of a metal material, and the arc breaks down by means of breakdown of the dissociation part, so that the dissociation parts and insulating parts in different dissociation plates are mutually laminated along the first direction, the insulating parts can be positioned in an arc moving path, thereby improving the adsorption capacity to charged particles by means of the insulating parts, reducing the probability of the arc flying out of the power distribution electrical appliance and improving the use safety.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the drawings that are needed to be used in the embodiments of the present utility model will be briefly described, and it is possible for a person skilled in the art to obtain other drawings according to these drawings without inventive effort.

FIG. 1 is a schematic diagram of a deionization module according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a dissociation board in a dissociation assembly according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a structure of a dissociation board in a dissociation assembly according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a structure of a deionization plate in a deionization unit according to an embodiment of the present utility model

FIG. 5 is a schematic diagram of a structure of a dissociation board in a dissociation assembly according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of a structure of a dissociation board in a dissociation assembly according to an embodiment of the present utility model;

FIG. 7 is a schematic diagram of a further embodiment of a deionization unit according to the present utility model;

FIG. 8 is a schematic diagram of a further embodiment of a deionization unit according to the present utility model;

FIG. 9 is a schematic diagram of an explosion structure of a further dissociation device according to an embodiment of the present utility model

FIG. 10 is a schematic diagram of a further embodiment of a deionization assembly according to the present utility model;

fig. 11 is a schematic structural diagram of a circuit breaker according to an embodiment of the present utility model.

Marking:

1. a disassociation component;

10. a dissociation board; 11. a dissociation portion; 12. an insulating part;

20. a partition plate; 21. a through hole;

30. a housing;

40. a contact arrangement;

50. arc extinguishing device; 51. a first arc extinguishing chamber; 52. a second arc extinguishing chamber; 53. an arc guide member;

10a, a first deionization plate; 10b, a second deionization plate;

a1, a first arc extinguishing area; a2, a second arc extinguishing area;

K. an air outlet;

x, a first direction; y, second direction; z, third direction.

Detailed Description

Features and exemplary embodiments of various aspects of the present utility model will be described in detail below, and in order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail below with reference to the accompanying drawings and the detailed embodiments. It should be understood that the particular embodiments described herein are meant to be illustrative of the utility model only and not limiting. It will be apparent to one skilled in the art that the present utility model may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the utility model by showing examples of the utility model.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

In the existing electrical products, an arc can be generated in the large-current breaking process, and the arc can be effectively broken by introducing the arc into an arc extinguishing system, but when the arc energy is too high due to the extremely large short-circuit current, the arc is easy to break down. The product outlet is usually provided with a dissociation net or other measures to reduce short circuit between the product and the conductive loop caused by arc flying out, but the dissociation measures in the existing product are often stacked by one whole dissociation net or a plurality of whole dissociation nets and separated by insulating and breathable materials, so that arc movement to the dissociation net can generate breakdown by means of the metal net to cause arc breaking failure of the electrical appliance product.

In order to solve the above-mentioned problems, referring to fig. 1 and 2, an embodiment of the present utility model provides a deionization module 1, which includes a plurality of deionization plates 10 stacked along a first direction X, wherein the deionization plates 10 include deionization portions 11 disposed adjacently along a second direction Y, and an insulating portion 12, and the deionization portions 11 are used for adsorbing charged particles, and the first direction X intersects the second direction Y. Wherein the projection of the deionization portion 11 of one of the at least two deionization plates 10 in the first direction X at least partially overlaps with the projection of the insulating portion 12 in the other one in the first direction X.

The deionization assembly 1 is mainly used for absorbing charged particles in the environment so as to reduce the probability of transferring the charged particles to other spaces and ensure the use safety of electric appliances. The scope of use of the deionization assembly 1 is not limited by the embodiments of the present utility model, and the deionization assembly 1 may be adapted for use in a circuit breaker with an arc extinguishing system, or may be located in some other electrical distribution appliance, for example.

The deionization unit 1 includes a plurality of deionization plates 10 stacked in a first direction X, which may be a thickness direction of the deionization plates 10. The size and shape of the deionization plate 10 are not limited in the embodiment of the present utility model, and the shape and size of the different deionization plates 10 may be the same or different. Illustratively, the projected shape of the deionization plate 10 in the first direction X may be rectangular, trapezoidal, or other parallelogram, etc.

The deionization plate 10 includes an deionization portion 11 and an insulation portion 12 disposed adjacently, and the shape and size of the deionization portion 11 and the insulation portion 12 have various forms, to which the embodiment of the present utility model is not limited. The deionization portion 11 is disposed adjacent to the insulating portion 12 in a second direction Y, which may be a direction parallel to the deionization plate 10, and the first direction X is perpendicular to the second direction Y, for example.

Note that, the arrangement of the dissociation portion 11 and the insulating portion 12 adjacent to each other in the second direction Y in the embodiment of the present utility model means that: at least a part of the structures in the deionization portion 11 and at least a part of the structures in the insulating portion 12 are disposed adjacently in the second direction Y, and the embodiment of the present utility model is not limited as to the specific positional relationship between the deionization portion 11 and the insulating portion 12. For example, the deionization portion 11 and the insulating portion 12 may have block structures, and they may be disposed side by side in the second direction Y, or the insulating portion 12 may be disposed around at least a portion of the structures in the deionization portion 11, so that at least a portion of the structures in the two may be disposed adjacently in the second direction Y.

In addition, the number of the deionization parts 11 and the insulating parts 12 in the deionization plate 10 is not limited, and one or more deionization parts 11 may be included in the deionization plate 10, and one or more insulating parts 12 may be included in the deionization plate 10. The number of the dissociation portions 11 in the different dissociation plates 10 may be the same or different; the number of insulating parts 12 in different deionization plates 10 may be the same or different.

The deionization part 11 is for adsorbing charged particles, and the deionization part 11 may be, for example, a metal mesh structure including a plurality of hole structures penetrating in the first direction X. The insulating portion 12 is made of an insulating material, and the insulating portion 12 may be made of rubber, plastic, or the like, for example. The deionization portion 11 and the insulating portion 12 may be integrally connected by welding or the like, or may not be connected to each other, and the deionization plate 10 may further include a frame body, where the deionization portion 11 and the insulating portion 12 are connected to each other and are disposed adjacently in the second direction Y.

The deionization assembly 1 is generally installed at an air outlet of an electrical distribution apparatus, wherein the first direction X may be an air exhaust direction of the electrical distribution apparatus, in addition to an arrangement direction of a plurality of deionization plates 10. Further, if the electrical distribution apparatus is provided with an arc extinguishing system, the first direction X may be perpendicular to an arrangement direction of the plurality of grid plates in the arc extinguishing system.

The projection of the deionization portion 11 of one of the at least two deionization plates 10 in the first direction X at least partially overlaps with the projection of the insulating portion 12 in the other in the first direction X. That is, on an arbitrary plane perpendicular to the first direction X, there is an overlapping region of the orthographic projection of the erasing portion 11 in the partial erasing plate 10 and the orthographic projection of the insulating portion 12 in the other partial erasing plate 10. The different dissociation plates 10 where the dissociation portions 11 and the insulation portions 12 are projected and overlapped in the first direction X may be two adjacent dissociation plates 10 or two non-adjacent dissociation plates 10, which is not limited in the embodiment of the present utility model.

When high voltage exists in the power distribution electrical appliance, during high voltage breaking, the electric arc easily flies out and leaves the power distribution electrical appliance along the first direction X due to excessive energy, at the moment, the dissociation part 11 is made of metal material and possibly becomes a conductor connected with the electric arc, and the electric arc breaks down to cause breaking failure by means of breakdown of the dissociation part 11, so that the insulation part 12 can be positioned in an electric arc moving path by mutually stacking the dissociation parts 11 and the insulation parts 12 in different dissociation plates 10 along the first direction X, thereby improving the adsorption capacity to charged particles by means of the insulation parts 12, reducing the probability of the electric arc flying out of the power distribution electrical appliance and improving the use safety.

It should be noted that, in the deionization unit 1, as shown in fig. 1, the projection of the deionization portion 11 in any different deionization plate 10 in the first direction X may be arranged in a staggered manner, or as shown in fig. 3, the projection of the deionization portion 11 in the adjacent deionization plate 10 in the first direction X may be partially overlapped, or as shown in fig. 4, the projection of the deionization portion 11 in the partial deionization plate 10 in the first direction X may be partially overlapped, and the projection of the deionization portion 11 in the partial deionization plate 10 in the first direction X may be arranged in a staggered manner.

In some embodiments, as shown in fig. 3, projection portions of at least part of the deionization portions 11 in adjacent deionization plates 10 in the first direction X are disposed overlapping.

This kind of design makes the at least part of the dissociation portion 11 in the adjacent dissociation board 10 can switch on in first direction X to can form the exhaust passage that is used for realizing gas movement, with this assurance gas can shift fast and leave the distribution electrical apparatus, reduce the distribution electrical apparatus and because of the too big risk of the problem such as swell that appears of inside atmospheric pressure, improve the safety in utilization.

In some embodiments, referring to fig. 2 and fig. 5 and 6, the dissociation plate 10 includes a plurality of dissociation portions 11 disposed at intervals, and the insulation portions 12 are disposed between adjacent dissociation portions 11.

In the same deionization plate 10, a plurality of deionization portions 11 may be disposed at intervals in the same direction, and illustratively, a plurality of deionization portions 11 are disposed at intervals in the second direction Y. Or the plurality of deionization parts 11 may be arranged in an array or other regular arrangement along different directions, or the plurality of deionization parts 11 may be arranged irregularly, which is not limited in the embodiment of the present utility model.

The insulating portion 12 is used for insulating and separating adjacent dissociation portions 11 in the same dissociation plate 10, so that different dissociation portions 11 are discontinuously arranged. The shape and size of the deionization portion 11 and the insulation portion 12 are not limited in the embodiment of the present utility model. The shapes and sizes of the different dissociation portions 11 in the same dissociation plate 10 may be the same or different, and the insulating portion 12 may be a block structure sandwiched between adjacent dissociation portions 11, or the insulating portion 12 may be a ring-like structure or the like around at least part of the outer periphery of the dissociation portions 11.

In the embodiment of the present utility model, by disposing the insulating portion 12 between the adjacent deionization portions 11, the different deionization portions 11 in the same deionization plate 10 are discontinuously disposed, so that even under a high voltage condition, the electric arc extending along the second direction Y is difficult to be conducted by means of the deionization plate 10, thereby improving the safety of the power distribution apparatus.

In some embodiments, referring to fig. 7, at least two deionization plates 10 include a plurality of first deionization plates 10a and second deionization plates 10b between adjacent first deionization plates 10a, and different first deionization plates 10a have the same structure.

The number of the first deionization plates 10a is plural, and the plurality of first deionization plates 10a have the same structure, that is, the projections of the deionization portions 11 in the first direction X in each of the first deionization plates 10a overlap, and the projections of the insulating portions 12 in the first direction X in each of the first deionization plates 10a overlap.

The second dissociation plates 10b are located between adjacent first dissociation plates 10a, the number of the second dissociation plates 10b may be one or plural, when the number of the first dissociation plates 10a is two, the second dissociation plates 10b may be one, located between the two first dissociation plates 10a, or the second dissociation plates 10b may be two or three, located on different sides of the two first dissociation plates 10a in the first direction X, respectively. Further, when the number of the second deionization plates 10b is plural, the shape and size of the plural second deionization plates 10b may be the same.

Alternatively, the projection of the deionization portion 11 in the first deionization plate 10a in the first direction X may be disposed overlapping the projection of the insulating portion 12 in the second deionization plate 10b in the first direction X. In this way, the deionization part 11 of one of the two adjacent deionization plates 10 and the insulation part 12 of the other are stacked in the first direction X, so that the probability of the electric arc flying out of the deionization assembly 1 along the first direction X is further reduced, and the use safety of the power distribution electrical appliance is improved.

In the embodiment of the utility model, the plurality of first deionization plates 10a with the same structure are arranged in the deionization assembly 1, so that the plurality of first deionization plates 10a can be formed by adopting the same die or in the same preparation process, thereby improving the preparation efficiency of the deionization assembly 1 and reducing the preparation cost of the deionization assembly 1.

In some embodiments, as shown in fig. 5, the insulating portion 12 surrounds at least a portion of the outer circumference of the deionization portion 11. Further, the insulating portion 12 surrounds the entire outer peripheral side of the deionization portion 11.

The outer periphery of the isolation portion 12 surrounds and eliminates the portion 11, and does not indicate that the projection shape of the elimination portion 11 in the first direction X is circular, and the projection shape of the isolation portion 12 in the first direction X is annular. The projection shape of the deionization portion 11 in the first direction X may be a triangle, a quadrangle, or other irregular shape, and the projection shape of the insulation portion 12 in the first direction X may be a square ring or other irregular shape.

If the number of the free portions 11 is plural, the insulating portion 12 may surround a part of the outer peripheral side of the free portions 11 and surround the entire outer peripheral side of the free portions 11. The insulating portion 12 may be formed around the entire outer periphery of each of the free portions 11, or the insulating portion 12 may be formed around a part of the outer periphery of each of the free portions 11.

In other embodiments, as shown in fig. 6, a plurality of deionization portions 11 are arranged in an array. Illustratively, the plurality of dissociation portions 11 are arranged in an array along a second direction Y and a third direction Z, respectively, the second direction Y intersecting the third direction Z and both being perpendicular to the first direction X.

The plurality of dissociation portions 11 are arranged in an array, so that the number of the dissociation portions 11 is increased, the area ratio occupied by the dissociation portions 11 can be increased, and the capability of the dissociation plate 10 for adsorbing charged particles is improved.

Of course, in other embodiments, the plurality of deionization portions 11 may be regularly arranged in other manners, or may be irregularly arranged, which is not limited in the embodiment of the present utility model.

In some embodiments, referring to fig. 1, 8 and 9, the deionization assembly 1 further includes a partition 20 disposed between adjacent deionization plates 10, the partition 20 being provided with a through hole 21 penetrating in the first direction X, and a projection of the through hole 21 in the first direction X at least partially overlaps a projection of the deionization portion 11 in the adjacent deionization plate 10 in the first direction X.

The spacers 20 are located between adjacent deionization plates 10 in the first direction X, and the spacers 20 themselves may include an insulating material. The partition 20 is provided with a through hole 21, and the through hole 21 penetrates the deionization plate 10 in the first direction X, and the shape and size of the through hole 21 are not limited in the embodiment of the present utility model. Illustratively, the projection of the through hole 21 in the first direction X may be circular or square or the like. While the number of through holes 21 in the partition 20 is not limited as such. The partition 20 may be provided with one or a plurality of through holes 21.

As can be seen from the foregoing, the hole structure may be disposed on the dissociation portion 11, and on this basis, the projection of the through hole 21 in the first direction X and the projection of the dissociation portion 11 in the adjacent dissociation plate 10 in the first direction X are at least partially overlapped, so that the through hole 21 on the partition 20 and the hole structure on the dissociation portion 11 may be mutually communicated, and part of the gas may be transferred away from the electrical apparatus through the through hole 21 and the dissociation portion 11, so as to meet the exhaust requirement of the electrical apparatus.

Further, the size and the number of the through holes 21 on the partition board 20 or the relative position relationship between the partition board 20 and the dissociation portion 11 can be adjusted, so that the effect of adjusting the gas flow passing through the dissociation assembly 1 can be achieved, the actual requirements of different power distribution electrical appliances can be met, and the electric power distribution electrical appliance has strong universality and applicability.

In some embodiments, referring to fig. 10, the projections of the dissociation portions 11 in the adjacent two dissociation plates 10 in the first direction X are staggered. The dislocation arrangement mentioned in the embodiment of the utility model refers to: there is no overlapping area of projections of the deionization portions 11 in the adjacent two deionization plates 10 in the first direction X.

The deionization parts 11 in the adjacent deionization plates 10 can be conducted through the through holes 21 on the partition plates 20, and at this time, if the projections of the deionization parts 11 in the adjacent deionization plates 10 in the first direction X are overlapped, the moving distance of the gas in the adjacent deionization plates 10 can be reduced, and at the same time, the moving distance of the electric arc in the deionization assembly 1 can be reduced under the high voltage condition, and the electric arc can possibly move away from the distribution electrical appliance directly from the first direction X, so that potential safety hazards occur.

In view of this, in the embodiment of the present utility model, the projection of the dissociation portion 11 in the adjacent dissociation plate 10 in the first direction X is arranged in a staggered manner, so as to reduce the probability that the arc is directly transferred from the first direction X to the power distribution apparatus, thereby improving the transfer path length of the arc in the dissociation assembly 1, ensuring that the arc can be separated in the dissociation assembly 1, reducing the probability that the arc flies out of the power distribution apparatus, and improving the use safety.

In some embodiments, the number of the through holes 21 is plural, and the plurality of through holes 21 are arrayed along the second direction Y and the third direction Z. Further, the projection of the partition 20 in the first direction X may have a grid structure.

In the embodiment of the utility model, the number of the through holes 21 on the partition board 20 is multiple, and the overlapping area of the through holes 21 and the adjacent dissociation portion 11 in the first direction X can be effectively controlled by adjusting the number of the through holes 21 and the size of the through holes 21 on the partition board 20, so that the effect of adjusting the gas flow passing through the dissociation assembly 1 can be achieved, the actual requirements of different power distribution appliances can be met, and the method has strong universality and applicability.

In a second aspect, an embodiment of the present utility model provides an arc extinguishing system, including the dissociation assembly 1 in any of the foregoing embodiments, where the arc extinguishing chamber is connected to the dissociation assembly 1.

The arc extinguishing system comprises an arc extinguishing chamber, and a plurality of grid plates are arranged in the arc extinguishing chamber. Alternatively, the deionization unit 1 may be integrated with the arc extinguishing chamber and be assembled and disassembled together with the arc extinguishing chamber.

In a third aspect, referring to fig. 11, an embodiment of the present utility model provides a circuit breaker, including the deionization unit 1 in any of the foregoing embodiments.

Alternatively, the dissociation component 1 may be in a separate structure with the circuit breaker, and the dissociation component 1 is mounted and fixed with the circuit breaker in an accessory or mounted on the outer side of the circuit breaker.

In some embodiments, as shown in fig. 11, the circuit breaker includes a housing 30, a contact arrangement 40, and an arc extinguishing arrangement 50. The housing 30 has a receiving cavity comprising a first arc extinguishing area A1 and a second arc extinguishing area A2 arranged in a first direction X, the contact arrangement 40 being located in the receiving cavity on a side of the first arc extinguishing area A1 facing away from the second arc extinguishing area A2.

The arc extinguishing device 50 comprises a first arc extinguishing chamber 51 located in a first arc extinguishing zone A1, a second arc extinguishing chamber 52 located in a second arc extinguishing zone A2 and an arc guiding member 53, the projections of the first arc extinguishing chamber 51 and the second arc extinguishing chamber 52 in a first direction X at least partly overlap, and both can be electrically connected by the arc guiding member 53. The housing 30 has an air outlet K at which the deionization unit 1 is disposed.

The contact device 40 includes two contacts that can be moved away from or closer to each other, and that open the circuit after being moved away from each other, and that close to each other, close the circuit.

The air outlet K is positioned at one side of the second arc extinguishing area A2 away from the first arc extinguishing area A1. In the embodiment of the present utility model, the projections of the first arc extinguishing chamber 51 and the second arc extinguishing chamber 52 in the first direction X overlap, which means that there is a partial overlapping area of the orthographic projections of the surfaces of the first arc extinguishing chamber 51 and the second arc extinguishing chamber 52 in the direction perpendicular to the first direction X.

The arc guide 53 connects the first arc extinguishing chamber 51 and the second arc extinguishing chamber 52, and specifically, the arc guide 53 is connected to an end of an overlapping portion of the first arc extinguishing chamber 51 and an end of an overlapping portion of the second arc extinguishing chamber 52.

The deionization component 1 of the embodiment of the utility model can be applied to a circuit breaker with at least two arc-extinguishing chambers, the circuit breaker is generally applied to a circuit with higher voltage, the concentration of charged particles generated after arc extinction of the first arc-extinguishing chamber 51 and the second arc-extinguishing chamber 52 is higher, and the phenomenon that a metal filter screen is broken down by an arc easily occurs, so that the probability of breaking down by the arc can be greatly reduced by the deionization component 1 when the deionization component 1 is applied to the circuit breaker, the probability that the arc-extinguishing chamber adjacent to the deionization component 1 can cut the arc is increased, and the reliability and the safety of the circuit breaker are improved.

While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (11)

1. A dissociation piece comprising a plurality of dissociation plates stacked in a first direction, the dissociation plates including dissociation portions adjacent to each other in a second direction, the dissociation portions being configured to adsorb charged particles, and an insulating portion, the first direction intersecting the second direction;

wherein a projection of the vanishing portion of one of the at least two vanishing plates in the first direction at least partially overlaps a projection of the insulating portion of the other in the first direction.

2. The deionization assembly of claim 1, wherein projection portions of at least a portion of said deionization portions in said first direction in adjacent ones of said deionization plates are disposed overlapping.

3. The deionization assembly as claimed in claim 1, wherein said deionization plate comprises a plurality of said deionization portions disposed at intervals, said insulating portions being disposed between adjacent ones of said deionization portions.

4. A deionization unit as claimed in claim 3 wherein at least two of said deionization plates comprise a plurality of first deionization plates and second deionization plates located between adjacent ones of said first deionization plates, the configuration of said first deionization plates being different.

5. A deionization assembly as claimed in claim 3 wherein said insulating portion surrounds at least a portion of the periphery of said deionization portion; and/or the number of the groups of groups,

the plurality of dissociation portions are arranged in an array.

6. The deionization assembly of claim 1, further comprising a spacer disposed between adjacent ones of said deionization plates, said spacer being provided with through holes passing therethrough along said first direction, a projection of said through holes in said first direction at least partially overlapping a projection of said deionization portions in said first direction in adjacent ones of said deionization plates.

7. The deionization assembly as claimed in claim 6, wherein projections of said deionization portions in adjacent two of said deionization plates in said first direction are offset.

8. The deionization assembly of claim 6, wherein the number of through holes is plural, the plural through holes are arrayed along the second direction and the third direction, and the first direction, the second direction and the third direction intersect each other two by two.

9. An arc extinguishing system comprising an arc extinguishing assembly according to any one of claims 1 to 8 and an arc extinguishing chamber, the arc extinguishing chamber being connected to the arc extinguishing assembly.

10. A circuit breaker comprising a deionization assembly as claimed in any one of claims 1 to 8.

11. The circuit breaker of claim 10, wherein the circuit breaker comprises a housing, a contact arrangement and an arc extinguishing arrangement,

the shell is provided with a containing cavity, the containing cavity comprises a first arc extinguishing area and a second arc extinguishing area which are arranged along the first direction, and the contact device is positioned at one side of the containing cavity, away from the second arc extinguishing area, of the first arc extinguishing area;

the arc extinguishing device comprises a first arc extinguishing chamber positioned in the first arc extinguishing area, a second arc extinguishing chamber positioned in the second arc extinguishing area and an arc guide piece, wherein the projections of the first arc extinguishing chamber and the second arc extinguishing chamber in the first direction are at least partially overlapped, and the first arc extinguishing chamber and the second arc extinguishing chamber can be electrically connected through the arc guide piece;

the shell is provided with an air outlet, and the dissociation component is arranged at the air outlet.