CN219303590U - Enhanced three-dimensional arc striking magnetic field structure - Google Patents
Enhanced three-dimensional arc striking magnetic field structure Download PDFInfo
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- CN219303590U CN219303590U CN202223548503.1U CN202223548503U CN219303590U CN 219303590 U CN219303590 U CN 219303590U CN 202223548503 U CN202223548503 U CN 202223548503U CN 219303590 U CN219303590 U CN 219303590U
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Abstract
The utility model discloses an enhanced three-dimensional arc striking magnetic field structure, which comprises: the device comprises a moving contact, a fixed contact, a permanent magnet, a first magnetic conduction plate, a second magnetic conduction plate, a first magnetic conduction plate cover plate and a second magnetic conduction plate cover plate; the moving contact is arranged above the fixed contact and positioned at one end of the arc running channel, the first magnetic conduction plate and the second magnetic conduction plate are respectively arranged at two sides of the arc running channel, permanent magnets are arranged at two sides of the first magnetic conduction plate and the second magnetic conduction plate and are used for forming three-dimensional strong magnetic field distribution, the first magnetic conduction plate cover plate is arranged between the permanent magnets on the first magnetic conduction plate and the moving contact and the fixed contact, and the second magnetic conduction plate cover plate is arranged between the permanent magnets on the second magnetic conduction plate and the moving contact and the fixed contact. Permanent magnets are respectively arranged on two surfaces of the magnetic conduction plates on two sides of the moving contact and the arc running channel, and three-dimensional strong magnetic field distribution for positively driving alternating current or bidirectional direct current electric arcs to move away from the moving contact and the moving contact is generated in the moving contact and the arc running channel area, so that the control of the electric arcs is facilitated to be enhanced.
Description
Technical Field
The utility model belongs to the field of piezoelectric devices, and particularly relates to an enhanced three-dimensional arc striking magnetic field structure.
Background
The switching arc is high-temperature and conductive gas which is inevitably generated in the switch when the low-voltage switching appliance breaks fault current, and can be quickly driven to transfer from a moving contact and a fixed contact of the switching appliance into a metal grid arc-extinguishing chamber, so that a contact and a switching mechanism can be better protected, excessive ablation is avoided, and the electrical life and breaking capacity of the switching appliance are improved. Because the switching arc has the dual characteristics of a conductor and a fluid, the switching arc can be controlled by an electromagnetic field and an airflow field, and therefore how to strengthen the electromagnetic field and the airflow field which drive the arc forward to move towards the arc extinguishing chamber and inhibit the action of the reverse electromagnetic field and the airflow field becomes a hot spot problem for long-term research in the field. The application provides an enhanced externally-added three-dimensional arc striking magnetic field structure, which can realize the strong magnetic field driving effect on alternating current and bidirectional direct current.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide an enhanced externally-added three-dimensional arc striking magnetic field structure which realizes the strong magnetic field driving effect on alternating current and bidirectional direct current.
In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:
the utility model discloses an enhanced three-dimensional arc striking magnetic field structure, which comprises: the device comprises a moving contact, a fixed contact, a permanent magnet, a first magnetic conduction plate, a second magnetic conduction plate, a first magnetic conduction plate cover plate and a second magnetic conduction plate cover plate; the moving contact is arranged above the fixed contact and positioned at one end of the arc running channel, the first magnetic conduction plate and the second magnetic conduction plate are respectively arranged at the moving contact, the fixed contact and the two sides of the arc running channel, permanent magnets are arranged at the two sides of the first magnetic conduction plate and the second magnetic conduction plate and used for forming three-dimensional strong magnetic field distribution, the first magnetic conduction plate cover plate is arranged between the permanent magnets on the first magnetic conduction plate and the moving contact and the fixed contact, and the second magnetic conduction plate cover plate is arranged between the permanent magnets on the second magnetic conduction plate and the moving contact and the fixed contact.
Preferably, the permanent magnet includes: a first permanent magnet group, a second permanent magnet group, a third permanent magnet group, and a fourth permanent magnet group; the third permanent magnet group is arranged on one side of the first magnetic conduction plate, close to the arc running channel, and is positioned between the first magnetic conduction plate and the first magnetic conduction plate cover plate, and the first permanent magnet group is arranged on the other side of the first magnetic conduction plate; the fourth permanent magnet group is arranged on one side of the second magnetic conduction plate, close to the arc running channel, and is positioned between the second magnetic conduction plate and the second magnetic conduction plate cover plate, the second permanent magnet group is arranged on the other side of the second magnetic conduction plate, and the first permanent magnet group and the second permanent magnet group are arranged close to the moving contact and the fixed contact.
Preferably, the first magnetic conductive plate comprises a first wall surface and a second wall surface; the first wall surface of the first magnetic conduction plate faces the plane formed by the moving contact and the fixed contact, and the second wall surface of the first magnetic conduction plate faces away from the plane formed by the moving contact and the fixed contact.
Preferably, the first permanent magnet group is in contact with the second wall surface or has a distance of not more than 5mm, and the third permanent magnet group is in contact with the first wall surface or has a distance of not more than 5 mm.
Preferably, the second magnetic conductive plate includes a third wall surface and a fourth wall surface, the third wall surface of the second magnetic conductive plate faces the plane formed by the moving contact and the fixed contact, and the fourth wall surface of the second magnetic conductive plate faces away from the plane formed by the moving contact and the fixed contact.
Preferably, the second permanent magnet group is in contact with or has a distance of not more than 5mm from a fourth wall surface, and the fourth permanent magnet group is in contact with or has a distance of not more than 5mm from a third wall surface.
Preferably, the first permanent magnet group, the second permanent magnet group, the third permanent magnet group and the fourth permanent magnet group all comprise an N pole and an S pole, the homopolar surfaces of the first permanent magnet group and the second permanent magnet group are oppositely arranged, and the homopolar surfaces of the first permanent magnet group and the second permanent magnet group are parallel or have an included angle of not more than 180 degrees; the homopolar surfaces of the third permanent magnet group and the fourth permanent magnet group are oppositely arranged, and the homopolar surfaces of the third permanent magnet group and the fourth permanent magnet group are parallel or have an included angle of not more than 180 degrees.
Preferably, the polarity of the first permanent magnet group facing the first magnetic conductive plate is the same as the polarity of the third permanent magnet group facing the first magnetic conductive plate, and the polarity of the second permanent magnet group facing the second magnetic conductive plate is the same as the polarity of the fourth permanent magnet group facing the second magnetic conductive plate.
Preferably, the first permanent magnet group, the second permanent magnet group, the third permanent magnet group and the fourth permanent magnet group are all one permanent magnet or the superposition of multiple permanent magnets, and the polarities of the multiple permanent magnets are the same when the multiple permanent magnets are superposed.
Preferably, the first permanent magnet group and the second permanent magnet group have the same magnetism, size and structure; and the magnetism, the size and the structure of the third permanent magnet group and the fourth permanent magnet group are the same.
Compared with the prior art, the utility model has the following beneficial effects:
by adopting the structural scheme provided by the application, through the mode that permanent magnets are respectively arranged on the two surfaces of the first magnetic conduction plate and the second magnetic conduction plate on the two sides of the moving contact, the fixed contact and the arc running channel, three-dimensional strong magnetic field distribution for positively driving alternating current or bidirectional direct current electric arcs to move far away from the moving contact and the fixed contact is generated in the moving contact, the fixed contact and the arc running channel area, the control of the electric arcs is facilitated to be enhanced, and the strong magnetic field driving effect on alternating current and bidirectional direct current is realized.
Drawings
FIG. 1 is a schematic top view of an enhanced three-dimensional arc striking magnetic field structure according to embodiment 1 of the present utility model;
FIG. 2 is a schematic diagram showing a front view of an enhanced three-dimensional arc striking magnetic field structure according to embodiment 1 of the present utility model;
FIG. 3 is a schematic diagram of a contact system and an arc extinguishing chamber of an enhanced three-dimensional arc striking magnetic field structure according to embodiment 1 of the present utility model, wherein (a) is the contact system; (b) is a schematic diagram of an arc extinguishing chamber;
FIG. 4 is a schematic top view of the enhanced three-dimensional arc striking magnetic field structure of embodiment 2 of the present utility model;
FIG. 5 is a schematic top view of the enhanced three-dimensional arc striking magnetic field structure of embodiment 3 of the present utility model;
FIG. 6 is a schematic top view of the enhanced three-dimensional arc striking magnetic field structure of embodiment 4 of the present utility model;
FIG. 7 is a schematic top view of the enhanced three-dimensional arc striking magnetic field structure of embodiment 5 of the present utility model;
fig. 8 is a schematic top view of an enhanced three-dimensional arc striking magnetic field structure according to embodiment 6 of the present utility model.
Wherein: 1-a moving contact; 2-a fixed contact; 3-a first permanent magnet group; 4-a second permanent magnet group; 5-a third permanent magnet group; 6-a fourth permanent magnet group; 7-a first magnetic conductive plate; 701-a first wall; 702-a second wall; 8-a second magnetic conductive plate; 801-a third wall; 802-fourth wall; 9-a first magnetic conduction plate cover plate; 10-a second magnetic conduction plate cover plate; 11-metal grid arc extinguishing chamber.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The utility model is described in further detail below with reference to the attached drawing figures:
referring to fig. 1 to 3, the enhanced three-dimensional arc striking magnetic field structure provided in embodiment 1 of the present utility model includes a moving contact 1, a fixed contact 2, a first permanent magnet group 3, a second permanent magnet group 4, a third permanent magnet group 5, a fourth permanent magnet group 6, a first magnetic conduction plate 7, a second magnetic conduction plate 8, a first magnetic conduction plate cover plate 9, a second magnetic conduction plate cover plate 10, and a metal grid arc extinguishing chamber 11;
the first magnetic conduction plate 7 and the second magnetic conduction plate 8 are respectively positioned at two sides of the moving contact 1 and the fixed contact 2;
the first magnetic conductive plate 7 includes a first wall surface 701 and a second wall surface 702, the first wall surface 701 of the first magnetic conductive plate 7 faces a plane formed by the moving contact 1 and the fixed contact 2, and the second wall surface 702 of the first magnetic conductive plate 7 faces away from the plane formed by the moving contact 1 and the fixed contact 2; the second magnetic conductive plate 8 includes a third wall surface 801 and a fourth wall surface 802, the third wall surface 801 of the second magnetic conductive plate 8 faces the plane formed by the moving contact 1 and the fixed contact 2, and the fourth wall surface 802 of the second magnetic conductive plate 8 faces away from the plane formed by the moving contact 1 and the fixed contact 2;
the first permanent magnet group 3 and the third permanent magnet group 5 are respectively located at two sides of the first magnetic conduction plate 7, the first permanent magnet group 3 is in contact with the second wall surface 702 of the first magnetic conduction plate 7 or has a distance of not more than 5mm, and the third permanent magnet group 5 is in contact with the first wall surface 701 of the first magnetic conduction plate 7 or has a distance of not more than 5 mm; the second permanent magnet group 4 and the fourth permanent magnet group 6 are respectively located at two sides of the second magnetic conduction plate 8, the second permanent magnet group 4 is in contact with the fourth wall surface 802 of the second magnetic conduction plate 8 or has a distance of not more than 5mm, and the fourth permanent magnet group 6 is in contact with the third wall surface 801 of the second magnetic conduction plate 8 or has a distance of not more than 5 mm;
the first permanent magnet 3 group is positioned at one end of the first magnetic conduction plate 7, which is close to the moving contact 1 and the fixed contact 2, and the third permanent magnet 5 group is positioned at one end of the first magnetic conduction plate 7, which is far away from the moving contact 1 and the fixed contact 2; the second permanent magnet group 4 is positioned at one end of the second magnetic conduction plate 8 close to the moving contact 1 and the fixed contact 2, and the fourth permanent magnet group 6 is positioned at one end of the second magnetic conduction plate 8 far away from the moving contact 1 and the fixed contact 2;
the first permanent magnet group 3, the second permanent magnet group 4, the third permanent magnet group 5 and the fourth permanent magnet group 6 comprise N poles and S poles, the homopolar surfaces of the first permanent magnet group 3 and the second permanent magnet group 4 are oppositely arranged, and the homopolar surfaces of the first permanent magnet group 3 and the second permanent magnet group 4 are parallel or have an included angle of not more than 180 degrees; the homopolar surfaces of the third permanent magnet group 5 and the fourth permanent magnet group 6 are oppositely arranged, and the homopolar surfaces of the third permanent magnet group 5 and the fourth permanent magnet group 6 are parallel or have an included angle of not more than 180 degrees; the polarity of the first permanent magnet group 3 facing the first magnetic conduction plate 7 is the same as the polarity of the third permanent magnet group 5 facing the first magnetic conduction plate 7, and the polarity of the second permanent magnet group 4 facing the second magnetic conduction plate 8 is the same as the polarity of the fourth permanent magnet group 6 facing the first magnetic conduction plate 8;
a first magnetic conduction plate cover plate 9 is arranged between the moving contact 1 and the fixed contact 2, the first permanent magnet group 3, the third permanent magnet group 5 and the first magnetic conduction plate 7; a second magnetic conduction plate cover plate 10 is arranged between the moving contact 1 and the fixed contact 2 and the second permanent magnet group 4, the fourth permanent magnet group 6 and the second magnetic conduction plate 8; the materials of the first magnetic conductive plate cover plate 9 and the second magnetic conductive plate cover plate 10 are ablation-resistant insulating materials, and are gas-generating or non-gas-generating materials, such as nylon, POM, BMC, DMC, SMC, ABS, PMMA, PPS and the like.
In embodiment 1, the first permanent magnet group 3 and the second permanent magnet group 4 are single-piece magnets, and the magnetism, the size and the structure of the single-piece magnets are the same; the third permanent magnet group 5 and the fourth permanent magnet group 6 are single-piece magnets, and have the same or similar magnetism, size and structure.
Referring to fig. 4, in embodiment 2, the first permanent magnet group 3 and the second permanent magnet group 4 are stacked by two or more magnets, and the stacked polarities of the multiple permanent magnets are the same, and the magnetism, the size and the structure of the split magnets adopted by the first permanent magnet group 3 and the second permanent magnet group 4 are the same; the third permanent magnet group 5 and the fourth permanent magnet group 6 are single-piece magnets, and have the same or similar magnetism, size and structure. In addition, the third permanent magnet group 5 and the fourth permanent magnet group 6 may be stacked multiple permanent magnets, where the polarities of the multiple permanent magnets are the same when the multiple permanent magnets are stacked.
Referring to fig. 5, in embodiment 3, the first permanent magnet group 3 is a plurality of permanent magnets placed in parallel, and the polarity directions of the plurality of permanent magnets facing the first magnetic conductive plate are the same, and the first permanent magnet group 4 is a plurality of permanent magnets placed in parallel, and the polarity directions of the plurality of permanent magnets facing the first magnetic conductive plate are the same; the third permanent magnet group 5 and the fourth permanent magnet group 6 are single-piece magnets, and have the same or similar magnetism, size and structure. In addition, the third permanent magnet group 5 and the fourth permanent magnet group 6 may be a plurality of permanent magnets placed in parallel, and the polarity directions of the plurality of permanent magnets facing the first magnetic conductive plate are the same.
Referring to fig. 6, in embodiment 4, the first permanent magnet group 3 and the second permanent magnet group 4 are single-piece magnets, the magnetism, the size and the structure of which are the same, and the homopolar surfaces of the first permanent magnet group 3 and the second permanent magnet group 4 face the second wall surface 702 of the first magnetic conductive plate 7 and the fourth wall surface 802 of the second magnetic conductive plate 8, respectively; the third permanent magnet group 5 and the fourth permanent magnet group 6 are single-piece magnets with the same magnetism, size, structure or the like, the polar surfaces of the third permanent magnet group 5 and the fourth permanent magnet group 6 face the moving contact 1 and the fixed contact 2, the polarities of the polar surfaces are opposite to the polarities of the second wall surface 702 facing the first magnetic conduction plate 7 and the fourth wall surface 802 of the second magnetic conduction plate 8 in the first permanent magnet group 3 and the second permanent magnet group 4, and the polar surfaces of the third permanent magnet group 5 and the fourth permanent magnet group 6 are perpendicular to the third wall surface 801 of the first magnetic conduction plate 7 and the third wall surface 701 of the second magnetic conduction plate 8.
Referring to fig. 7, in embodiment 5, the first permanent magnet group 3 and the second permanent magnet group 4 are single-piece magnets, the magnetism, the size and the structure of which are the same, and the homopolar surfaces of the first permanent magnet group 3 and the second permanent magnet group 4 face the second wall surface 702 of the first magnetic conductive plate 7 and the fourth wall surface 802 of the second magnetic conductive plate 8, respectively; the effect of the third permanent magnet group 5 and the fourth permanent magnet group 6 is achieved by one permanent magnet, only the third permanent magnet group 5 is reserved, as shown in fig. 7, the third permanent magnet group 5 is located on a plane formed by the moving contact 1 and the fixed contact 2, a polarity surface of the third permanent magnet group 5 faces the moving contact 1 and the fixed contact 2, and the polarity of the polarity surface is opposite to that of a second wall surface 702 facing the first magnetic conduction plate 7 and a fourth wall surface 802 of the second magnetic conduction plate 8 in the first permanent magnet group 3 and the second permanent magnet group 4.
Referring to fig. 8, in embodiment 6, the effect of the first permanent magnet group 3 and the second permanent magnet group 4 is achieved by one permanent magnet, only the first permanent magnet group 3 remains, and referring to fig. 8, the first permanent magnet group 3 is located on a plane formed by the moving contact 1 and the fixed contact 2, a polarity surface of the first permanent magnet group 3 faces the moving contact 1 and the fixed contact 2, and the polarity of the polarity surface is opposite to that of a first wall surface 701 facing the first magnetic conductive plate 7 and a third wall surface 801 facing the second magnetic conductive plate 8 in the third permanent magnet group 5 and the fourth permanent magnet group 6.
According to the enhanced three-dimensional arc striking magnetic field structure, the permanent magnets are respectively arranged on the two surfaces of the magnetic conduction plates on the two sides of the moving contact and the arc running channel, so that three-dimensional strong magnetic field distribution for positively driving alternating current or bidirectional direct current arcs to move in the direction away from the moving contact and the moving contact is generated in the moving contact and the arc running channel area, and the enhanced control of the arcs is facilitated.
The above is only for illustrating the technical idea of the present utility model, and the protection scope of the present utility model is not limited by this, and any modification made on the basis of the technical scheme according to the technical idea of the present utility model falls within the protection scope of the claims of the present utility model.
Claims (10)
1. An enhanced three-dimensional arc striking magnetic field structure, comprising: the device comprises a moving contact (1), a fixed contact (2), a permanent magnet, a first magnetic conduction plate (7), a second magnetic conduction plate (8), a first magnetic conduction plate cover plate (9) and a second magnetic conduction plate cover plate (10); moving contact (1) are located and run arc passageway one end above fixed contact (2), first magnetic conduction board (7) and second magnetic conduction board (8) set up respectively in moving contact (1), fixed contact (2) and run arc passageway both sides, and first magnetic conduction board (7) and second magnetic conduction board (8) both sides all are equipped with the permanent magnet and are used for forming three-dimensional powerful magnetic field and distribute, first magnetic conduction board apron (9) set up between permanent magnet and moving contact (1) and fixed contact (2) on first magnetic conduction board (7), second magnetic conduction board apron (10) set up between permanent magnet and moving contact (1) and fixed contact (2) on second magnetic conduction board (8).
2. The enhanced three-dimensional arc striking magnetic field structure of claim 1, wherein the permanent magnet comprises: a first permanent magnet group (3), a second permanent magnet group (4), a third permanent magnet group (5) and a fourth permanent magnet group (6); the third permanent magnet group (5) is arranged on one side of the first magnetic conduction plate (7) close to the arc running channel and is positioned between the first magnetic conduction plate (7) and the first magnetic conduction plate cover plate (9), and the first permanent magnet group (3) is arranged on the other side of the first magnetic conduction plate (7); the fourth permanent magnet group (6) is arranged on one side of the second magnetic conduction plate (8) close to the arc running channel and is positioned between the second magnetic conduction plate (8) and the second magnetic conduction plate cover plate (10), the second permanent magnet group (4) is arranged on the other side of the second magnetic conduction plate (8), and the first permanent magnet group (3) and the second permanent magnet group (4) are arranged close to the moving contact (1) and the fixed contact (2).
3. An enhanced three-dimensional striking magnetic field structure according to claim 2, characterized in that the first magnetically permeable plate (7) comprises a first wall (701) and a second wall (702); the first wall surface (701) of the first magnetic conduction plate (7) faces the plane formed by the moving contact (1) and the fixed contact (2), and the second wall surface (702) of the first magnetic conduction plate (7) faces away from the plane formed by the moving contact (1) and the fixed contact (2).
4. An enhanced three-dimensional striking magnetic field structure according to claim 3, characterized in that the first permanent magnet group (3) is in contact with the second wall (702) or at a distance of not more than 5mm, and the third permanent magnet group (5) is in contact with the first wall (701) or at a distance of not more than 5 mm.
5. The enhanced three-dimensional arc striking magnetic field structure according to claim 2, wherein the second magnetic conduction plate (8) comprises a third wall surface (801) and a fourth wall surface (802), the third wall surface (801) of the second magnetic conduction plate (8) faces a plane formed by the moving contact (1) and the fixed contact (2), and the fourth wall surface (802) of the second magnetic conduction plate (8) faces away from the plane formed by the moving contact (1) and the fixed contact (2).
6. An enhanced three-dimensional striking magnetic field structure according to claim 5, characterized in that the second permanent magnet group (4) is in contact with or at a distance of not more than 5mm from a fourth wall (802), and the fourth permanent magnet group (6) is in contact with or at a distance of not more than 5mm from a third wall (801).
7. The enhanced three-dimensional arc striking magnetic field structure according to claim 2, wherein the first permanent magnet group (3), the second permanent magnet group (4), the third permanent magnet group (5) and the fourth permanent magnet group (6) each comprise an N pole and an S pole, homopolar surfaces of the first permanent magnet group (3) and the second permanent magnet group (4) are oppositely arranged, and homopolar surfaces of the first permanent magnet group (3) and the second permanent magnet group (4) are parallel or have an included angle of not more than 180 °; the homopolar surfaces of the third permanent magnet group (5) and the fourth permanent magnet group (6) are arranged oppositely, and the homopolar surfaces of the third permanent magnet group (5) and the fourth permanent magnet group (6) are parallel or have an included angle of not more than 180 degrees.
8. The enhanced three-dimensional arc striking magnetic field structure according to claim 7, wherein the polarity of the first permanent magnet group (3) facing the first magnetic conductive plate (7) is the same as the polarity of the third permanent magnet group (5) facing the first magnetic conductive plate (7), and the polarity of the second permanent magnet group (4) facing the second magnetic conductive plate (8) is the same as the polarity of the fourth permanent magnet group (6) facing the second magnetic conductive plate (8).
9. The enhanced three-dimensional arc striking magnetic field structure according to claim 2, wherein the first permanent magnet group (3), the second permanent magnet group (4), the third permanent magnet group (5) and the fourth permanent magnet group (6) are all one permanent magnet or a superposition of multiple permanent magnets, and the polarities of the multiple permanent magnets are the same when the multiple permanent magnets are superposed.
10. An enhanced three-dimensional striking magnetic field structure according to claim 2, characterized in that the first permanent magnet group (3) and the second permanent magnet group (4) are identical in magnetism, size, structure; the third permanent magnet group (5) and the fourth permanent magnet group (6) have the same magnetism, size and structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223548503.1U CN219303590U (en) | 2022-12-29 | 2022-12-29 | Enhanced three-dimensional arc striking magnetic field structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223548503.1U CN219303590U (en) | 2022-12-29 | 2022-12-29 | Enhanced three-dimensional arc striking magnetic field structure |
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| Publication Number | Publication Date |
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| CN219303590U true CN219303590U (en) | 2023-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223548503.1U Active CN219303590U (en) | 2022-12-29 | 2022-12-29 | Enhanced three-dimensional arc striking magnetic field structure |
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| Country | Link |
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| CN (1) | CN219303590U (en) |
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- 2022-12-29 CN CN202223548503.1U patent/CN219303590U/en active Active
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