CN219106058U - Magnetic blow-out arc striking mechanism of circuit breaker - Google Patents
Magnetic blow-out arc striking mechanism of circuit breaker Download PDFInfo
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- CN219106058U CN219106058U CN202223385800.9U CN202223385800U CN219106058U CN 219106058 U CN219106058 U CN 219106058U CN 202223385800 U CN202223385800 U CN 202223385800U CN 219106058 U CN219106058 U CN 219106058U
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- rod
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Abstract
The utility model relates to the technical field of circuit breaker arc striking, in particular to a magnetic arc blowing and striking mechanism of a circuit breaker, which comprises: an arc striking member for guiding an arc in the circuit breaker; and the bimetal strip is fixedly connected to one side of the arc striking piece, the arc extinguishing chamber is connected to the other side of the arc striking piece, a movable contact is fixedly arranged on the bimetal strip, a wiring board is fixedly arranged on one side of the bimetal strip, and a static contact board is fixedly arranged on one side of the arc extinguishing chamber. The magnetic attraction arc mechanism adopts an integrated arc striking piece, forms a magnetic attraction magnetic field after being electrified to attract an arc, rapidly guides the arc into an arc extinguishing chamber, achieves the function of rapid arc striking and extinguishing, has the advantages of rapid arc striking, good effect, simple structure, proper width and length, no occupation of a larger internal structure of the circuit breaker, suitability for use in some small-sized circuit breakers, realization of the function of rapid arc striking, and safe use of a protection circuit.
Description
Technical Field
The utility model relates to the technical field of circuit breaker arc striking, in particular to a magnetic blowing arc striking mechanism of a circuit breaker.
Background
The circuit breaker is widely used in the fields of industry, commercial, residential houses and the like, and is used for detecting and timely disconnecting conditions of short circuit, electricity leakage, overload and the like of a circuit to ensure electricity utilization safety.
In the prior art, the application number is disclosed as follows: the utility model of cn201721677524.X is named: the arc striking mechanism of the miniature circuit breaker is characterized in that the arc striking sheet consists of a main arc striking sheet and an auxiliary arc striking sheet which are arranged side by side left and right, the width of the arc striking sheet is increased, and the auxiliary arc striking sheet with larger size can be designed by the left and right arranged structure, so that the strength of the auxiliary arc striking sheet structure is improved; the auxiliary arc striking piece and the magnetism increasing part are arranged in a surrounding mode, so that two spiral magnetic fields can be generated in the arc extinguishing mechanism, and arc striking can be performed more rapidly.
However, in the prior art, as in the arc striking mechanism mentioned in application number cn201721677524.X, the size of the arc striking structure is larger, the installation of the arc striking sheet can be performed by occupying a larger width inside the circuit breaker, the whole width of the circuit breaker is increased, the structure is complex, and the disassembly and assembly are inconvenient.
Disclosure of Invention
The utility model aims to provide a magnetic blow-out arc striking mechanism of a circuit breaker, which aims to solve the problems in the prior art.
The aim of the utility model can be achieved by the following technical scheme:
a magnetic blow-out mechanism for a circuit breaker, the magnetic blow-out mechanism comprising:
an arc striking member for guiding an arc in the circuit breaker;
and the bimetal strip is fixedly connected to one side of the arc striking piece, the arc extinguishing chamber is connected to the other side of the arc striking piece, a movable contact is fixedly arranged on the bimetal strip, a wiring board is fixedly arranged on one side of the bimetal strip, and a static contact board is fixedly arranged on one side of the arc extinguishing chamber.
Further, the striking spare comprises welded surface, first straight-bar, second straight-bar, montant, inclined bar and locating part, is connected with the circuit breaker through first straight-bar, locating part, and the one end and the welded surface fixed connection of first straight-bar, the other end is connected with the second straight-bar and is formed V type structure.
Further, one end of the vertical rod is fixedly connected with one end, far away from the first straight rod, of the second straight rod, the other end of the vertical rod is connected with one end of the inclined rod, the other end of the inclined rod is fixedly connected with the positioning part, a through groove is formed in the inclined rod, and the connecting position of the first straight rod and the second straight rod is located in the through groove.
Further, an annular structure for generating a magnetic blowing magnetic field is formed among the second straight rod, the vertical rod and the inclined rod.
Furthermore, one side of the arc-extinguishing chamber is fixedly provided with a static contact plate, the other side of the arc-extinguishing chamber is connected with the inclined rod to form an arc channel, and the static contact plate and the arc-extinguishing chamber form an acute angle.
Further, the bimetal is welded and fixed with the welding surface.
Further, the arc extinguishing chamber comprises two arc baffles, and arc isolating grids distributed in an array are fixedly arranged between the arc baffles.
The utility model has the beneficial effects that:
1. the magnetic attraction arc mechanism adopts an integrated arc striking piece, forms a magnetic attraction magnetic field after electrifying an annular structure formed in the arc striking piece, attracts an arc, and rapidly guides the arc into an arc extinguishing chamber, thereby achieving the function of rapid arc striking and arc extinguishing, and the arc striking is rapid and has good effect;
2. the magnetic attraction arc mechanism has the advantages of simple structure, proper width and length, no occupation of a larger internal structure of the circuit breaker, suitability for some small circuit breakers, realization of a rapid arc striking function and safe use of a protection circuit.
Drawings
The utility model is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a magnetic blow-off mechanism according to the present utility model;
FIG. 2 is a schematic view of the structure of the arc striking member of the present utility model;
fig. 3 is a schematic view of the structure of the arc extinguishing chamber of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the magnetic arc striking mechanism of the circuit breaker comprises an arc striking piece 5, wherein the arc striking piece 5 consists of a welding surface 121, a first straight rod 122, a second straight rod 123, a vertical rod 124, an inclined rod 125 and a positioning part 126, the welding surface 121 is fixedly connected with one end of the first straight rod 122, and the other end of the first straight rod 122 is connected with one end of the second straight rod 123.
One end of the second straight rod 123 far away from the first straight rod 122 is fixedly connected with the vertical rod 124, one end of the vertical rod 124 far away from the second straight rod 123 is connected with one end of the inclined rod 125, the other end of the inclined rod 125 is fixedly connected with the positioning part 126, a through groove is formed in the inclined rod 125, and the first straight rod 122, the positioning part 126 and the circuit breaker shell are fixedly connected.
The first straight rod 122 is connected with the second straight rod 123 to form a V-shaped structure, the connection position is located in the through groove, an annular structure is formed among the second straight rod 123, the vertical rod 124 and the inclined rod 125, a magnetic blowing magnetic field is generated after the electric arc is electrified, and the electric arc is rapidly introduced into the arc extinguishing chamber 6.
The explosion chamber 6 sets up in the one side of striking spare 5, and the fixed static contact board 3 that is equipped with in one side of explosion chamber 6, and the opposite side is connected with diagonal 125, forms the electric arc passageway, introduces the arc into the explosion chamber fast, and static contact board 3 and explosion chamber 6 are installed in the circuit breaker casing, and static contact board 3 forms the acute angle with explosion chamber 6.
The side of arc striking piece 5, which is far away from explosion chamber 6, is provided with bimetallic strip 4, bimetallic strip 4 and welding surface 121 are fixedly connected in a welding mode, moving contact 2 is fixedly connected on bimetallic strip 4, one side of bimetallic strip 4, which is far away from explosion chamber 6, is fixedly provided with wiring board 1, and bimetallic strip 4 connects wiring board 1 with moving contact 2 through flexible connection.
The arc extinguishing chamber 6 comprises two arc baffles 101, and arc barriers 102 distributed in an array are fixedly arranged between the arc baffles 101, and in this embodiment, the number of the arc barriers 102 is 5.
When the magnetic arc striking mechanism is used, the using method of the magnetic arc striking mechanism of the circuit breaker is as follows:
the arc striking piece 5 welded with the bimetallic strip 4 is arranged in the circuit breaker shell, the arc striking piece 5 is fixed by being matched and connected with a groove formed in the circuit breaker shell through a first straight rod 122 and a positioning part 126, then the arc extinguishing chamber 6 and the static contact plate 3 are arranged in the circuit breaker shell, the arc extinguishing chamber 6 is connected with a diagonal rod 125 on the arc striking piece 5,
in this embodiment, simple structure has reduced the volume of arc extinguishing system, and simultaneously after the circular telegram, the multistage bending structure of striking spare 5 produces magnetism and inhales the magnetic field, can effectually guide the inside electric arc of circuit breaker to explosion chamber 6 departments, improves the inside striking efficiency of circuit breaker, introduces the explosion chamber fast with electric arc, strengthens striking effect, improves small-size circuit breaker's breaking capacity.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.
Claims (7)
1. A magnetic blow-out mechanism for a circuit breaker, the magnetic blow-out mechanism comprising:
an arc striking member (5) for guiding an arc in the circuit breaker;
and explosion chamber (6) and bimetallic strip (4), bimetallic strip (4) fixed connection is in one side of striking spare (5), and explosion chamber (6) are connected in the opposite side of striking spare (5), and fixed moving contact (2) that are equipped with on bimetallic strip (4), and fixed wiring board (1) that are equipped with in one side of bimetallic strip (4), fixed static contact board (3) that are provided with in one side of explosion chamber (6).
2. The magnetic blow-out striking mechanism of a circuit breaker according to claim 1, wherein the striking member (5) is composed of a welding surface (121), a first straight rod (122), a second straight rod (123), a vertical rod (124), an inclined rod (125) and a positioning part (126), and is connected with the circuit breaker through the first straight rod (122) and the positioning part (126), one end of the first straight rod (122) is fixedly connected with the welding surface (121), and the other end is connected with the second straight rod (123) to form a V-shaped structure.
3. The magnetic blowout striking mechanism of a circuit breaker according to claim 2, wherein one end of the vertical rod (124) is fixedly connected with one end of the second straight rod (123) far away from the first straight rod (122), the other end of the vertical rod is connected with one end of the diagonal rod (125), the other end of the diagonal rod (125) is fixedly connected with the positioning part (126), a through groove is formed in the diagonal rod (125), and the connection position of the first straight rod (122) and the second straight rod (123) is located in the through groove.
4. A magnetic blow-out mechanism for a circuit breaker according to claim 3, characterized in that the second straight bar (123), the vertical bar (124) and the diagonal bar (125) form a ring-shaped structure for generating a magnetic blow-out field.
5. A magnetic blow-out mechanism for a circuit breaker according to claim 2, characterized in that the static contact plate (3) is fixedly arranged on one side of the arc extinguishing chamber (6), the other side is connected with the diagonal rod (125) to form an arc channel, and the static contact plate (3) forms an acute angle with the arc extinguishing chamber (6).
6. A magnetic blow-out mechanism for a circuit breaker according to claim 2, characterized in that the bimetal (4) is welded to the welding surface (121).
7. A magnetic blow-out striking mechanism of a circuit breaker according to claim 1, characterized in that the arc extinguishing chamber (6) comprises two arc baffles (101), between which arc baffles (101) an array of arc barriers (102) are fixedly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223385800.9U CN219106058U (en) | 2022-12-16 | 2022-12-16 | Magnetic blow-out arc striking mechanism of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223385800.9U CN219106058U (en) | 2022-12-16 | 2022-12-16 | Magnetic blow-out arc striking mechanism of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219106058U true CN219106058U (en) | 2023-05-30 |
Family
ID=86468613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223385800.9U Active CN219106058U (en) | 2022-12-16 | 2022-12-16 | Magnetic blow-out arc striking mechanism of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219106058U (en) |
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2022
- 2022-12-16 CN CN202223385800.9U patent/CN219106058U/en active Active
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