Deionization structure and circuit breaker

Abstract

The utility model relates to the technical field of low-voltage electric appliances, in particular to a deionization structure and a circuit breaker. The deionization structure is used for being arranged in the circuit breaker and used in cooperation with an arc extinguish chamber of the circuit breaker, the deionization structure comprises an exhaust channel and an arc extinction piece arranged in the exhaust channel, an inlet of the exhaust channel and an exhaust port of the arc extinguish chamber are oppositely arranged, and an outlet of the exhaust channel is communicated with the outside; and the arc extinguishing piece is formed by irregularly curling and / or winding a metal wire. The deionization structure has the following advantages: 1, the internal space of the circuit breaker is fully utilized, and the size of the circuit breaker is hardly increased while the deionization effect is enhanced; 2, a terminal cover on an existing circuit breaker can be replaced, so that the technical problems that the terminal cover occupies a large space and is inconvenient to install, and the connection between the terminal cover and a circuit breaker shell is easy to loosen under the impact of gas are solved; 3, the structure is stable and reliable; and 4, the cooling time of the airflow is prolonged, and cooling arc extinction is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage electrical appliances, in particular to a deionization structure and a circuit breaker. Background Art

[0002] During the breaking process of the circuit breaker, the voltage between the moving and static contacts will cause air medium discharge to form an arc. Only relying on the arc extinguishing chamber inside the circuit breaker cannot completely extinguish the arc, and the remaining arc and charged particles will spray out along the air outlet on the circuit breaker housing.

[0003] In order to prevent the sprayed arc and charged particles from damaging the surrounding circuits, the common current practice is to install a terminal cover at the position of the air outlet outside the circuit breaker housing. The terminal cover blocks the spraying of the arc and metal particles, thereby playing an arc extinguishing role.

[0004] Using a terminal cover for arc extinguishing has the following problems: The terminal cover occupies a large space and is inconvenient to install; when the air pressure of the sprayed gas is relatively large, the terminal cover will shake under the impact of the gas, causing the connection between the terminal cover and the circuit breaker housing to become loose, and in severe cases, it may cause damage to the terminal cover and the circuit breaker housing. Summary of the Utility Model

[0005] The first object of the utility model is to provide a deionization structure to solve the technical problems in the prior art that the terminal cover occupies a large space, is inconvenient to install, and the connection between the terminal cover and the housing is likely to become loose under the impact of gas.

[0006] In order to achieve the above object, the utility model adopts the following technical solutions:

[0007] A deionization structure is used to be arranged inside the circuit breaker and used in cooperation with the arc extinguishing chamber of the circuit breaker. It includes an exhaust passage and an arc extinguishing member arranged in the exhaust passage, wherein:

[0008] The inlet of the exhaust passage is oppositely arranged with the exhaust port of the arc extinguishing chamber, and the outlet of the exhaust passage is communicated with the outside;

[0009] The arc extinguishing member is formed by randomly curling and / or winding metal wires.

[0010] Further, the outlet of the exhaust passage is arranged at the bottom of the circuit breaker.

[0011] Further, both the inlet interface and the outlet interface of the circuit breaker are arranged at the bottom of the circuit breaker, and the inlet interface, the outlet of the exhaust passage, and the outlet interface are sequentially distributed in the horizontal direction.

[0012] Further, a plurality of metal grids are laid at the outlet of the exhaust passage.

[0013] Furthermore, it further includes a grid fixing seat installed in the exhaust passage. The grid fixing seat has a hollow structure, and a plurality of grid card slots are provided on the inner wall surface of the grid fixing seat. The metal grids are respectively and correspondingly clamped in the grid card slots.

[0014] Furthermore, the metal grid is made of a porous metal plate or formed by pressing metal wires.

[0015] Furthermore, the exhaust passage includes a guiding portion and an exhaust portion that are connected and communicate with each other. Among them, the guiding portion is located between the arc extinguishing chamber and the exhaust portion, and the opening area of the guiding portion decreases from the arc extinguishing chamber to the exhaust portion.

[0016] Furthermore, an arc extinguishing chamber mounting base is provided inside the circuit breaker, and the arc extinguishing chamber is installed on the arc extinguishing chamber mounting base;

[0017] The guiding portion is provided on the arc extinguishing chamber mounting base.

[0018] Furthermore, the arc extinguishing grids of the arc extinguishing chamber are arranged in parallel in the horizontal direction; the arc extinguishing chamber, the guiding portion, and the exhaust portion are sequentially distributed in the vertical direction, and the exhaust portion corresponds to the middle position of the arc extinguishing chamber.

[0019] The second object of the present invention is to provide a circuit breaker, which includes an arc extinguishing chamber, an incoming line terminal, an outgoing line terminal, and the deionization structure described in any one of the above;

[0020] The arc extinguishing grids of the arc extinguishing chamber are arranged in parallel in the horizontal direction;

[0021] The arc extinguishing chamber and the exhaust passage are sequentially distributed in the vertical direction;

[0022] The incoming line terminal, the exhaust passage, and the outgoing line terminal are sequentially distributed in the horizontal direction.

[0023] The beneficial effects of the present invention:

[0024] The present invention provides a deionization structure and a circuit breaker. The deionization structure is used to be arranged inside the circuit breaker and cooperate with the arc extinguishing chamber of the circuit breaker. It includes an exhaust passage and an arc extinguishing component arranged in the exhaust passage. Among them: the inlet of the exhaust passage is oppositely arranged with the exhaust port of the arc extinguishing chamber, and the outlet of the exhaust passage communicates with the outside; the arc extinguishing component is formed by randomly curling and / or winding metal wires.

[0025] The deionization structure has the following advantages: 1. It makes full use of the internal space of the circuit breaker, and hardly increases the volume of the circuit breaker while enhancing the deionization effect; 2. It can replace the terminal cover on the existing circuit breaker, thus solving the technical problems that the terminal cover occupies a large space, is inconvenient to install, and the connection between the terminal cover and the circuit breaker housing is prone to looseness under the impact of gas; 3. Constrained by the circuit breaker housing, the deionization structure will not shake under the impact of gas, and the structure is stable and reliable; 4. Compared with the existing circuit breaker, the length of the exhaust channel 1 is greater, thus prolonging the cooling time of the air flow in the channel, which is beneficial to cooling the arc extinction and avoiding the problem that the circuit breaker housing explodes under the impact of gas. Description of the Drawings

[0026] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 It is a schematic structural diagram of the deionization structure provided by the embodiment of the present invention applied in a circuit breaker;

[0028] Figure 2 It is a schematic structural diagram of the installation of the metal grid in the deionization structure provided by the embodiment of the present invention.

[0029] Icon:

[0030] 1 - Exhaust channel; 11 - Guide part; 12 - Exhaust part; 2 - Arc extinguishing part; 3 - Metal grid; 4 - Grid fixing seat; 41 - Grid card slot;

[0031] 100 - Arc chamber; 200 - Inlet interface; 300 - Outlet interface; 400 - Arc chamber mounting base; 500 - Moving contact; 600 - Inlet terminal; 700 - Outlet terminal; 800 - Operating mechanism; 900 - Housing; 901 - Face cover; 902 - Middle cover; 903 - Base; 904 - Plug - in base. Detailed Embodiments

[0032] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0033] It should be noted that in the description of the present utility model, the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0034] It should be noted that in the description of the present utility model, the terms "connection" and "installation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or connected through an intermediate medium; it can be a mechanical connection or an electrical connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] Currently, the common way to deionize is to install a terminal cover at the position of the air outlet outside the circuit breaker housing. This way has the following problems: the terminal cover occupies a large space and is inconvenient to install; when the air pressure of the ejected gas is large, the terminal cover will shake under the impact of the gas, causing the connection between the terminal cover and the circuit breaker housing to become loose, and in severe cases, cracks may occur in the terminal cover and the circuit breaker housing.

[0036] Based on this, the first aspect embodiment of the present utility model provides a deionization structure. Referring to Figure 1 , the deionization structure is used to be arranged inside the circuit breaker and cooperate with the arc extinguishing chamber 100 of the circuit breaker. It includes an exhaust passage 1 and an arc extinguishing member 2 arranged in the exhaust passage 1, wherein:

[0037] The inlet of the exhaust passage 1 is oppositely arranged with the exhaust port of the arc extinguishing chamber 100, and the outlet of the exhaust passage 1 is communicated with the outside;

[0038] The arc extinguishing member 2 is formed by randomly curling and / or winding metal wires.

[0039] When the circuit breaker is working, the high-temperature gas carrying metal particles discharged from the exhaust port of the arc extinguishing chamber 100 is discharged outward along the exhaust passage 1; when the gas passes through the arc extinguishing member 2, the arc extinguishing member 2 can block the metal particles in the gas to deionize the high-temperature gas generated by the breaking, achieving a better deionization effect.

[0040] In the above structure, since the arc extinguishing member 2 is formed by irregularly curling and winding of metal wire, a plurality of irregularly arranged air gaps are naturally formed on the surface and inside of the arc extinguishing member 2. These air gaps force the metal particles to meander in the arc extinguishing member 2, thereby increasing the contact path between the arc and the metal mesh and prolonging the time of the metal particles in the arc extinguishing member 2, effectively eliminating the flying metal particles. In addition, since the surface and inside of the arc extinguishing member 2 are covered with irregularly arranged air gaps, it is difficult for the metal particles to rebound into the circuit breaker, thereby improving the safety of the circuit breaker when in use. Furthermore, the irregularly wound metal wire has compressibility and resilience, and the arc extinguishing member 2 can be fixed in the exhaust channel 1 by extrusion deformation, and the installation structure is simple and the installation process is convenient and quick; due to the characteristics of the arc extinguishing member 2 itself, its compression increases with the increase of gas pressure, and the gas will rebound after being discharged, so it can make the exhaust channel 1 have a larger space for accommodating gas when the amount of gas is large.

[0041] As described above, the deionization structure provided by the present application has the following advantages: 1. It makes full use of the internal space of the circuit breaker, and almost does not increase the volume of the circuit breaker while enhancing the deionization effect; 2. It can replace the terminal cover on the existing circuit breaker, thereby solving the technical problems that the terminal cover occupies a large space, is inconvenient to install, and the connection between the terminal cover and the circuit breaker housing is easy to loosen under the impact of gas; 3. Since the deionization structure is arranged inside the circuit breaker, under the constraint of the circuit breaker housing, the deionization structure will not shake under the impact of gas, and the structure is stable and reliable; 4. Compared with the existing circuit breaker, the exhaust channel 1 is longer, thereby extending the cooling time of the airflow in the channel, which is conducive to cooling and arc extinguishing, and avoids the problem of the circuit breaker housing cracking under the impact of gas.

[0042] Optionally, the metal wire is a steel wire, and the diameter of the metal wire can be in the range of 0.5 to 3 mm. The shape of the arc extinguishing member 2 can be spherical, plate-shaped or any irregular shape, which is not limited here. When the shape of the arc extinguishing member 2 is plate-shaped, one or more arc extinguishing members 2 of plate-shaped structure can be wound and inserted into the exhaust passage 1; preferably, the axis of the wound arc extinguishing member 2 is perpendicular to the extension direction of the exhaust passage 1.

[0043] Continue to refer to Figure 1 , the outlet of the exhaust channel 1 is arranged at the bottom of the circuit breaker. Further, the incoming line interface 200 and the outgoing line interface 300 of the circuit breaker are both arranged at the bottom of the circuit breaker, and the incoming line interface 200, the outlet of the exhaust channel 1 and the outgoing line interface 300 are sequentially distributed in the horizontal direction.

[0044] Specifically, the circuit breaker further includes an incoming line terminal 600 and an outgoing line terminal 700, where: the incoming line terminal 600 is electrically connected to the incoming line interface 200, and the incoming line interface 200 is used to connect to a power source; the outgoing line terminal 700 is electrically connected to the outgoing line interface 300, and the outgoing line interface 300 is used to connect to a load. The exhaust channel 1 is arranged between the incoming line terminal 600 and the outgoing line terminal 700.

[0045] In the above structure, the exhaust channel 1 is arranged in the area between the incoming line terminal 600 and the outgoing line terminal 700. Such an arrangement makes full use of the internal space of the circuit breaker, thereby enhancing the deionization effect with almost no increase in the volume of the circuit breaker; furthermore, this embodiment makes full use of the area between the incoming line terminal 600 and the outgoing line terminal 700, and the exhaust channel 1 extends from the exhaust end of the arc extinguishing chamber to the bottom end face of the circuit breaker. Therefore, the length of the exhaust channel 1 is relatively large. Such an arrangement not only facilitates the arrangement of the arc extinguishing member 2, but also enables the outwardly ejected airflow to have a longer cooling and arc extinguishing time, so as to effectively cool and extinguish the high-temperature gas generated by the breaking, achieving the technical effect of zero flashover. In addition, both the incoming line interface 200 and the outgoing line interface 300 of the circuit breaker are arranged at the bottom of the circuit breaker, which is convenient for wiring the circuit breaker.

[0046] In this embodiment, the arc extinguishing grids of the arc extinguishing chamber 100 are arranged in parallel in the horizontal direction; the arc extinguishing chamber 100 and the exhaust channel 1 are arranged in sequence in the vertical direction. Analyzing the above structure, there is an exhaust channel 1 arranged between the incoming line terminal 600 and the outgoing line terminal 700, so that a larger installation space can be provided for the arc extinguishing chamber 100 in the horizontal direction, enabling the arc extinguishing chamber 100 to arrange more arc extinguishing grids, thereby enhancing the arc extinguishing effect of the arc extinguishing chamber 100.

[0047] Continue to refer to Figure 1 , the exhaust channel 1 includes a guiding portion 11 and an exhaust portion 12 that are connected and communicate with each other. Among them, the guiding portion 11 is located between the arc extinguishing chamber 100 and the exhaust portion 12, and the opening area of the guiding portion 11 decreases from the arc extinguishing chamber 100 to the exhaust portion 12. Further, the arc extinguishing chamber 100, the guiding portion 11, and the exhaust portion 12 are arranged in sequence in the vertical direction, and the exhaust portion 12 corresponds to the middle position of the arc extinguishing chamber 100.

[0048] Specifically, the guiding portion 11 is conical, and its flared end faces the exhaust port of the arc extinguishing chamber 100. After the gas is ejected from the exhaust port of the arc extinguishing chamber 100, it can converge along the guiding portion 11 towards the middle of the circuit breaker and finally enter the exhaust portion 12 and be discharged outward along the exhaust portion 12.

[0049] Based on the above structure, the arc extinguishing member 2 is clamped in the exhaust portion 12. After the gas discharged from the arc extinguishing chamber 100 is collected and enters the exhaust portion 12, it comes into full contact with the arc extinguishing member 2, so that the charged particles are blocked in the arc extinguishing member 2.

[0050] In this embodiment, an arc extinguishing chamber mounting base 400 is provided inside the circuit breaker, and the arc extinguishing chamber 100 is mounted on the arc extinguishing chamber mounting base 400;

[0051] A guiding portion 11 is provided on the arc extinguishing chamber mounting base 400.

[0052] Analyzing the above structure, both the arc extinguishing chamber 100 and the guiding portion 11 are provided on the arc extinguishing chamber mounting base 400. That is, the relative positions of the arc extinguishing chamber 100 and the guiding portion 11 can be restricted by the arc extinguishing chamber mounting base 400, so that all the exhaust ports of the arc extinguishing chamber 100 are within the inlet range of the guiding portion 11, thereby enabling the guiding portion 11 to effectively collect the gas discharged from the arc extinguishing chamber 100.

[0053] Continue to refer to Figure 1 , a plurality of metal grids 3 are laid at the outlet of the exhaust passage 1. Optionally, the number of the metal grids 3 is one or more; when the number of the metal grids 3 is multiple, the multiple metal grids 3 are arranged in parallel along the extending direction of the exhaust passage 1.

[0054] In the above structure, the arc extinguishing member 2 forms a first arc extinguishing layer in the exhaust passage 1, and the metal grid 3 forms a second arc extinguishing layer at the outlet of the exhaust passage 1, achieving the technical effect of zero flashover through the two arc extinguishing layers.

[0055] Optionally, the metal grid 3 is made of a porous metal plate or is formed by pressing metal wires.

[0056] Refer to Figure 2 , in this embodiment, the number of the metal grids 3 is multiple, and among the multiple metal grids 3, several are made of porous metal plates, and several others are formed by pressing metal wires. Further, the metal grid 3 formed by pressing metal wires is closer to the outlet of the exhaust passage 1 and / or is located between two adjacent metal grids 3 made of porous metal plates.

[0057] Exemplarily, the number of the metal grids 3 is three, two of which are porous metal plates, and the other is formed by pressing metal wires, and the metal grid 3 formed by pressing metal wires is close to the outlet of the exhaust passage 1. The metal grid 3 formed by pressing metal wires has smaller and more air gaps, so it has a better deionization effect; while the porous metal plate has a higher hardness and can block and buffer the impact of the gas. With the above arrangement, the porous metal plate can deionize and buffer the impact of the air flow at the same time, avoiding the deformation, damage and falling off of the metal grid 3 formed by pressing metal wires under the impact of the air flow, making the deionization structure have the advantages of zero flashover and stable and reliable structure.

[0058] Continue to refer to Figure 2, the deionization structure further includes a grid fixing seat 4 installed in the exhaust passage 1. The grid fixing seat 4 has a hollow structure, and a plurality of grid card slots 41 are provided on the inner wall surface of the grid fixing seat 4. The metal grids 3 are correspondingly clamped in the grid card slots 41 one by one.

[0059] Specifically, the grid fixing seat 4 is detachably fixed in the exhaust passage 1 by means of clamping or screwing. During the assembly of the circuit breaker, the metal grid can be first installed on the grid fixing seat 4 and then the grid fixing seat 4 can be fixed inside the circuit breaker, thus facilitating the installation and disassembly of the metal grid 3.

[0060] Continue to refer to Figure 1 , an embodiment of the second aspect of the present invention provides a circuit breaker, which includes an arc extinguishing chamber 100 and the deionization structure described in any one of the above embodiments. Therefore, the circuit breaker at least has all the technical effects of the above deionization structure, which will not be elaborated here.

[0061] Furthermore, the circuit breaker further includes a moving contact 500, an incoming line terminal 600, and an outgoing line terminal 700;

[0062] The arc extinguishing grids of the arc extinguishing chamber 100 are arranged in parallel along the horizontal direction;

[0063] The moving contact 500, the arc extinguishing chamber 100, and the exhaust passage 1 are arranged in sequence along the vertical direction;

[0064] The incoming line terminal 600, the exhaust passage 1, and the outgoing line terminal 700 are arranged in sequence along the horizontal direction;

[0065] The incoming line interface 200 of the circuit breaker, the outlet of the exhaust passage 1, and the outgoing line interface 300 of the circuit breaker are all located at the bottom of the circuit breaker and are arranged in sequence along the horizontal direction.

[0066] The above arrangement makes full use of the space in the height direction inside the circuit breaker, enables the exhaust passage 1 to have a greater length, and thus greatly improves the cooling and arc extinguishing effect on the basis of hardly increasing the volume of the circuit breaker; moreover, the above arrangement provides a greater installation space for the arc extinguishing chamber 100 in the horizontal direction, so that more arc extinguishing grids can be arranged, improving the arc extinguishing effect of the arc extinguishing chamber.

[0067] Continue to refer to Figure 1 , the circuit breaker further includes an operating mechanism 800, and the operating mechanism 800, the moving contact 500, the arc extinguishing chamber 100, and the exhaust passage 1 are arranged in sequence along the vertical direction.

[0068] Specifically, the housing 900 of the circuit breaker includes a face cover 901, a middle cover 902, a base 903, and a plug-in base 904 that are sequentially fitted from top to bottom in the height direction. Among them, a first cavity is formed between the face cover 901 and the middle cover 902, and the intelligent module and the operating mechanism 800 are arranged in the first cavity. A second cavity is formed between the middle cover 902 and the base 903, and the arc extinguishing chamber 100, the moving contact 500, and the static contact are arranged in the second cavity. A bridge-type contact assembly is arranged in the plug-in base 904. The upper part of the bridge-type contact assembly is connected to the moving and static contacts, and an incoming line interface 200 and an outgoing line interface 300 are arranged below the bridge-type contact assembly. The exhaust passage 1 penetrates through the plug-in base 904, extends from the exhaust end of the arc extinguishing chamber 100 to the bottom end face of the housing 900, and its outlet is located between the incoming line interface 200 and the outgoing line interface 300.

[0069] In the above structure, the operating mechanism 800 and the outlet of the exhaust passage 1 are respectively located at the upper and lower ends of the circuit breaker. Therefore, the gas ejected from the exhaust passage 1 will not damage the operating mechanism 800, thus improving the safety performance of the product. In addition, the arrangement of the bridge-type contact assembly facilitates the wiring of the circuit breaker and further extends the length of the exhaust passage 1, thereby further improving the cooling and arc extinguishing effect.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A deionization structure, characterized in that, It is used to be arranged inside a circuit breaker and used in cooperation with the arc extinguishing chamber (100) of the circuit breaker. It includes an exhaust passage (1) and an arc extinguishing component (2) arranged in the exhaust passage (1), wherein: The inlet of the exhaust passage (1) is arranged opposite to the exhaust port of the arc extinguishing chamber (100), and the outlet of the exhaust passage (1) communicates with the outside; The arc extinguishing component (2) is formed by randomly curling and / or winding metal wires.

2. The deionization structure according to claim 1, characterized in that, The outlet of the exhaust passage (1) is arranged at the bottom of the circuit breaker.

3. The deionization structure according to claim 2, characterized in that, Both the incoming line interface (200) and the outgoing line interface (300) of the circuit breaker are arranged at the bottom of the circuit breaker, and the incoming line interface (200), the outlet of the exhaust passage (1), and the outgoing line interface (300) are arranged in sequence along the horizontal direction.

4. The deionization structure according to claim 1, characterized in that, A plurality of metal grids (3) are laid at the outlet of the exhaust passage (1).

5. The deionization structure according to claim 4, characterized in that, It further includes a grid fixing seat (4) arranged in the exhaust passage (1). The grid fixing seat (4) has a hollow structure, and a plurality of grid card slots (41) are arranged on the inner wall surface of the grid fixing seat (4). The metal grids (3) are correspondingly clamped in the grid card slots (41).

6. The deionization structure according to claim 4, wherein The metal grid (3) is made of a porous metal plate or pressed from metal wires.

7. The deionization structure according to claim 1, wherein The exhaust passage (1) includes a guiding part (11) and an exhaust part (12) that are connected and communicate with each other. Among them, the guiding part (11) is located between the arc extinguishing chamber (100) and the exhaust part (12), and the opening area of the guiding part (11) shows a decreasing trend from the arc extinguishing chamber (100) to the exhaust part (12).

8. The deionization structure according to claim 7, wherein, An arc extinguishing chamber installation base (400) is arranged inside the circuit breaker, and the arc extinguishing chamber (100) is installed on the arc extinguishing chamber installation base (400); The guiding part (11) is arranged on the arc extinguishing chamber installation base (400).

9. The deionization structure according to claim 7, characterized in that, The arc extinguishing grids of the arc extinguishing chamber (100) are arranged in parallel along the horizontal direction; the arc extinguishing chamber (100), the guiding part (11), and the exhaust part (12) are arranged in sequence along the vertical direction, and the exhaust part (12) corresponds to the middle position of the arc extinguishing chamber (100).

10. A circuit breaker, characterized in that, It includes an arc extinguishing chamber (100), an incoming line terminal (600), an outgoing line terminal (700), and the deionization structure according to any one of claims 1 to 9; The arc extinguishing grids of the arc extinguishing chamber (100) are arranged in parallel along the horizontal direction; The arc extinguishing chamber (100) and the exhaust passage (1) are arranged in sequence along the vertical direction; The incoming line terminal (600), the exhaust passage (1), and the outgoing line terminal (700) are arranged in sequence along the horizontal direction.

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