CN219457512U - Frame circuit breaker contact structure and frame circuit breaker - Google Patents
Frame circuit breaker contact structure and frame circuit breaker Download PDFInfo
- Publication number
- CN219457512U CN219457512U CN202320302455.3U CN202320302455U CN219457512U CN 219457512 U CN219457512 U CN 219457512U CN 202320302455 U CN202320302455 U CN 202320302455U CN 219457512 U CN219457512 U CN 219457512U
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- contact
- circuit breaker
- frame circuit
- support
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Abstract
The utility model discloses a frame circuit breaker contact structure and a frame circuit breaker. The technical scheme adopted comprises the following steps: the fixed contact assembly comprises a fixed contact, a contact and a contact support assembly, wherein the contact is arranged at the top of the fixed contact, the contact support assembly comprises a first contact support and a second contact support, the first contact support is wrapped on the fixed contact and fixed through rivet riveting, the rear end of the fixed contact is connected to a first connecting shaft and a second connecting shaft of the second contact support, the second contact support is provided with a mounting bottom plate, the mounting bottom plate is provided with a bolt, the upper end of the fixed contact is provided with a first positioning protruding portion, a positioning groove is formed by surrounding the first positioning protruding portion and the first contact support together, and the contact is arranged in the positioning groove.
Description
Technical Field
The utility model belongs to the field of electrical equipment, and particularly relates to a frame circuit breaker.
Background
The frame-type breaker is also called as universal breaker, and is a mechanical switching device which can turn on, bear and break current under normal circuit condition, and also can turn on, bear a certain time and break current under specified abnormal circuit condition. The frame-type circuit breaker is used for distributing electric energy and protecting overload, undervoltage, short circuit and the like of a circuit and power supply equipment. With the continuous improvement of breaking capacity requirements of the molded case circuit breaker, higher requirements are also put forward on the stability and strength of the contact structure of the circuit breaker. The traditional contact structure is mainly fixed by virtue of supporting ribs in a shell, and has the defects of poor strength and inconvenient installation.
Disclosure of Invention
The utility model aims to provide a frame circuit breaker contact structure and a frame circuit breaker.
In order to solve the problems, the technical scheme adopted by the utility model comprises the following steps: the static contact subassembly, its characterized in that: the static contact assembly comprises a static contact, a contact and a contact support assembly, wherein the contact is arranged at the top of the static contact, the contact support assembly comprises a first contact support and a second contact support, the first contact support is wrapped on the static contact and fixed through rivet riveting, the rear end of the static contact is connected to a first connecting shaft and a second connecting shaft of the second contact support, the second contact support is provided with a mounting base plate, the mounting base plate is provided with a bolt, the upper end of the static contact is provided with a first positioning protruding portion, a positioning groove is formed by the first positioning protruding portion and the first contact support in a surrounding mode, and the contact is arranged in the positioning groove.
The frame circuit breaker contact structure, its characterized in that: the front of the lower end of the second contact support is provided with a flange through bending, and the lower end of the fixed contact is provided with a second positioning protruding part matched with the flange in a positioning way.
The frame circuit breaker contact structure, its characterized in that: the second contact support is provided with a sheath outside, and the sheath is provided with a U-shaped positioning notch and a positioning column.
The frame circuit breaker contact structure, its characterized in that: the middle part of the fixed contact is provided with a convex welding part, a wire is welded at the welding part, and a wiring row is welded at the front end of the wire.
The frame circuit breaker contact structure, its characterized in that: the front end of the wiring row is provided with wiring holes, and the rear end of the wiring row is provided with mounting holes which are arranged in a triangular mode after being bent.
The frame circuit breaker contact structure, its characterized in that: an insulating partition board for isolating electric arcs is arranged between the fixed contact and the wiring row.
A frame circuit breaker, includes frame circuit breaker body, its characterized in that: the frame breaker body is internally provided with the contact structure of any one of the above.
The frame breaker contact structure and the frame breaker have the advantages that: the fixed contact is installed and fixed by adopting the contact support assembly consisting of the first contact support and the second contact support, wherein the fixed contact is fixed on the first contact support through rivets, the rivets are also adopted between the first contact support and the second contact support, and the second contact support is fixed at the bottom of the circuit breaker through bolts on the mounting bottom plate.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic view of the structure of a contact of the present utility model;
FIG. 2 is a cross-sectional view of the contact structure of the present utility model;
FIG. 3 is an exploded view of the contact structure of the present utility model;
fig. 4 is a schematic view of the structure of a second contact holder of the present utility model;
FIG. 5 is a schematic view of the structure of the wiring block of the present utility model;
fig. 6 is a schematic structural view of the frame circuit breaker of the present utility model.
Description of the embodiments
Examples
As shown in fig. 1 to 5, the frame circuit breaker contact structure of the utility model comprises a fixed contact assembly 1, wherein the fixed contact assembly 1 comprises a fixed contact 2, a contact 3 and a contact bracket assembly 4. The contact 3 is arranged at the top of the fixed contact 2, and the contact support assembly 4 comprises a first contact support 5 and a second contact support 6. The first contact support 5 is wrapped on the fixed contact 2 and is riveted and fixed through rivets 7 at two ends. The rear end of the fixed contact 2 is connected to a first connecting shaft 8 and a second connecting shaft 9 of the second contact bracket 6. The second contact bracket 6 is provided with a mounting bottom plate 10, two bolts 11 are arranged on the mounting bottom plate 10, and the second contact bracket 6 is fixed at the bottom of the circuit breaker shell through the cooperation of the bolts 11 and the mounting bottom plate 10. The upper end of the fixed contact 2 is provided with a first positioning protruding part 12, a positioning groove 13 is formed by the first positioning protruding part 12 and the first contact bracket 5 in a surrounding mode, and the contact 3 is arranged in the positioning groove 13. By positioning the positioning groove 13, the contact 3 can be more stably fixed at the upper end of the fixed contact 2. The contact 3 and the fixed contact 2 can be fixed by fusion welding.
Preferably, a flange 14 is formed in front of the lower end of the second contact support 6 through bending, and a second positioning protruding portion 15 matched with the flange 14 in a positioning manner is arranged at the lower end of the fixed contact 2. By the cooperation of the flange 14 and the second positioning protruding portion 15, the stationary contact 2 can be more stably fixed in the second contact support 6.
Preferably, the second contact support 6 is provided with a sheath 16, and the sheath 16 is provided with a U-shaped positioning notch 17 and a positioning column 18. After installation, the U-shaped positioning notch 17 and the positioning column 18 are positioned with the positioning structure in the breaker housing, so as to further improve the installation strength.
Preferably, a raised welding part 19 is arranged in the middle of the fixed contact 2, a wire 20 is welded through the welding part 19, and a wiring row 21 is welded at the front end of the wire 20. Through the soldering 19 to facilitate connection with the wire 20.
Preferably, the front end of the wiring row 21 is provided with wiring holes 22, and the rear end of the wiring row 21 is provided with mounting holes 23 arranged in a triangular manner after being bent. The wire bars 21 pass through the wire holes 22 to facilitate connection with external wires. The wiring harness 21 can be more stably fixed in the circuit breaker housing by the mounting holes 23 arranged in a triangle.
Preferably, an insulating partition 24 for isolating an arc is provided between the stationary contact 2 and the terminal block 21. So as to prevent the static contact 2 and the moving contact from burning wires or wiring bars by electric arcs produced in the breaking process.
Examples
As shown in fig. 6, the frame circuit breaker of the present utility model includes a frame circuit breaker body 25, and the contact structure a described in embodiment 1 is disposed in the frame circuit breaker body 25.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (7)
1. The utility model provides a frame circuit breaker contact structure, includes static contact subassembly (1), its characterized in that: the static contact assembly (1) comprises a static contact (2), a contact (3) and a contact support assembly (4), wherein the contact (3) is arranged at the top of the static contact (2), the contact support assembly (4) comprises a first contact support (5) and a second contact support (6), the first contact support (5) is wrapped by the static contact (2) and riveted and fixed through rivets (7), the rear end of the static contact (2) is connected to a first connecting shaft (8) and a second connecting shaft (9) of the second contact support (6), the second contact support (6) is provided with a mounting base plate (10), a bolt (11) is arranged on the mounting base plate (10), a first positioning protruding portion (12) is arranged at the upper end of the static contact (2), a positioning groove (13) is formed by the first positioning protruding portion (12) and the first contact support (5) in a surrounding mode, and the contact (3) is arranged in the positioning groove (13).
2. The frame circuit breaker contact structure of claim 1, wherein: a flange (14) is formed in front of the lower end of the second contact support (6) through bending, and a second positioning protruding portion (15) matched with the flange (14) in a positioning mode is arranged at the lower end of the fixed contact (2).
3. The frame circuit breaker contact structure of claim 1, wherein: the second contact support (6) is provided with a sheath (16), and the sheath (16) is provided with a U-shaped positioning notch (17) and a positioning column (18).
4. The frame circuit breaker contact structure of claim 1, wherein: the middle part of the fixed contact (2) is provided with a convex welding part (19), a wire (20) is welded through the welding part (19), and a wiring row (21) is welded at the front end of the wire (20).
5. The frame circuit breaker contact structure of claim 4, wherein: the front end of the wiring row (21) is provided with wiring holes (22), and the rear end of the wiring row is provided with mounting holes (23) which are arranged in a triangular mode after being bent.
6. The frame circuit breaker contact structure of claim 4, wherein: an insulating partition board (24) for isolating electric arcs is arranged between the fixed contact (2) and the wiring row (21).
7. Frame circuit breaker, including frame circuit breaker body (25), its characterized in that: the frame circuit breaker body (25) having the contact structure (a) of any one of claims 1-6 disposed therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320302455.3U CN219457512U (en) | 2023-02-24 | 2023-02-24 | Frame circuit breaker contact structure and frame circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320302455.3U CN219457512U (en) | 2023-02-24 | 2023-02-24 | Frame circuit breaker contact structure and frame circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219457512U true CN219457512U (en) | 2023-08-01 |
Family
ID=87384079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320302455.3U Active CN219457512U (en) | 2023-02-24 | 2023-02-24 | Frame circuit breaker contact structure and frame circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219457512U (en) |
-
2023
- 2023-02-24 CN CN202320302455.3U patent/CN219457512U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |