CN220895442U - Circuit breaker arc-extinguishing chamber with arc-extinguishing gate piece anticreep function - Google Patents
Circuit breaker arc-extinguishing chamber with arc-extinguishing gate piece anticreep function Download PDFInfo
- Publication number
- CN220895442U CN220895442U CN202321628711.4U CN202321628711U CN220895442U CN 220895442 U CN220895442 U CN 220895442U CN 202321628711 U CN202321628711 U CN 202321628711U CN 220895442 U CN220895442 U CN 220895442U
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- arc
- falling
- extinguishing
- circuit breaker
- plates
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- 238000004880 explosion Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 7
- 238000010891 electric arc Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses an arc-extinguishing cover of a circuit breaker with an arc-extinguishing grid piece anti-falling function, which comprises two connecting side plates and a plurality of vertically arranged arc-extinguishing grid pieces arranged between the two connecting side plates, wherein fixing plates are fixedly arranged at two ends of each connecting side plate, anti-falling clamping blocks are fixedly arranged at two sides of each arc-extinguishing grid piece, and anti-falling fasteners are inserted between the fixing plates and the anti-falling clamping blocks. According to the structure, when the circuit breaker arc-extinguishing cover is used for a long time, the phenomenon of looseness between the arc-extinguishing grid sheet and the connecting side plate does not occur, so that the arc-extinguishing effect of the circuit breaker arc-extinguishing cover is prevented from being influenced due to the looseness of the arc-extinguishing grid sheet, the whole structure of the circuit breaker arc-extinguishing cover is more stable, and the circuit breaker arc-extinguishing cover is simple in structure and convenient to install.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to an arc extinguishing chamber of a circuit breaker with an arc extinguishing gate anti-drop function.
Background
The circuit breaker is an important part in the distribution electrical equipment, is mainly used for an industrial low-voltage power system, and is used for switching on and off current in a power grid circuit and protecting a circuit and power supply equipment from damage caused by faults such as overload, undervoltage, short circuit, single-phase grounding and the like. The breaker is mainly used for breaking overload or short-circuit current through an arc extinguishing chamber arranged in the breaker. When fault current occurs in the circuit and the current value exceeds the set protection range of the circuit breaker, the tripping mechanism is driven to act, so that the moving contact and the fixed contact of the circuit breaker are rapidly disconnected, and at the moment, the voltage between the moving contact and the fixed contact causes air medium discharge so as to generate high-temperature arc. The arc causes, on the one hand, a sharp rise in the temperature of the air in the arc extinguishing device during the combustion process, thereby accelerating the ionization of the air. On the other hand, the electric arc is separated into a plurality of short arcs by a plurality of arc extinguishing grid plates under the pushing of the magnetic field and the fluid effect in the arc extinguishing chamber, the deionization effect of the electric arc is enhanced by virtue of the metal arc separation plates, the electric arc is reduced, the voltage is rapidly increased, and the electric arc is extinguished.
At present, the structure of current circuit breaker explosion vent comprises two curb plates and a plurality of arc extinguishing bars piece of installing between the curb plate generally, when the installation, the arc extinguishing bars piece is installed between two curb plates through the joint mode only, leads to can appear not hard up even drop phenomenon under long-time use between arc extinguishing bars piece and the curb plate, leads to the unable normal work of explosion vent, and then leads to the unable normal arc extinction of circuit breaker and appear serious arc short circuit or ground connection scheduling problem.
Disclosure of utility model
The utility model provides an arc-extinguishing cover of a circuit breaker with an arc-extinguishing grid piece anti-drop function, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The utility model provides a circuit breaker explosion-proof housing with explosion bars piece anticreep function, includes two connection curb plates to and install a plurality of arc bars pieces of vertical arranging between two connection curb plates, the both ends of connecting the curb plate are all fixed to be provided with the fixed plate, the both sides of arc bars piece are all fixed to be provided with anticreep joint piece, the fixed plate with it is provided with anticreep fastener to alternate on the anticreep joint piece.
Preferably, a plurality of anti-falling clamping interfaces matched with the anti-falling clamping blocks are formed on the surface of the connecting side plate, and the anti-falling clamping blocks are clamped into the anti-falling clamping interfaces.
Preferably, the anti-falling fastener comprises an anti-falling inserting rod, threads are fixedly arranged on the outer diameter of one end of the anti-falling inserting rod, and fastening bolts are arranged on the anti-falling inserting rod through threaded connection.
Preferably, through holes are formed in the fixing plate and the anti-falling clamping blocks, and the anti-falling inserting rods are arranged in the through holes in a penetrating mode.
Preferably, arc striking openings are formed in the arc extinguishing grid plates, and the arc extinguishing grid plates are distributed at equal intervals.
Advantageous effects
The technical scheme of the circuit breaker arc-extinguishing cover with the arc-extinguishing grid piece anti-drop function provided by the embodiment of the utility model has at least one of the following technical effects:
According to the circuit breaker arc-extinguishing cover with the arc-extinguishing grid piece anti-drop function, through the technical scheme, the device is free from loosening between the arc-extinguishing grid piece and the connecting side plate when being used for a long time, so that the arc-extinguishing effect of the circuit breaker arc-extinguishing cover is prevented from being influenced due to loosening of the arc-extinguishing grid piece, the circuit breaker arc-extinguishing cover can work normally when being used for a long time, the arc-extinguishing effect is guaranteed, the whole structure of the circuit breaker arc-extinguishing cover is more stable, and the structure is simple and convenient to install.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of a front view structure of the present utility model;
FIG. 3 is a schematic view of a front cross-sectional structure of the present utility model;
FIG. 4 is a schematic side view of the present utility model;
The correspondence between the reference numerals and the component names in the drawings is as follows:
1. connecting side plates; 2. arc extinguishing grid plates; 3. a fixing plate; 4. an anti-falling clamping block; 5. an anti-falling fastener; 6. an anti-disengaging interface; 7. an anti-drop insert rod; 8. a fastening bolt; 9. a through hole; 10. and (5) an arc striking opening.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are 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.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
1-4, Which are schematic structural views of an arc extinguishing chamber of a circuit breaker with an arc extinguishing gate anti-drop function according to a preferred embodiment of the present utility model;
The utility model discloses an arc-extinguishing cover of a circuit breaker with an arc-extinguishing grid piece anti-drop function, which comprises two connecting side plates 1, wherein the connecting side plates are made of polyamide resin, and a plurality of arc-extinguishing grid pieces 2 which are vertically arranged and are arranged between the two connecting side plates 1, the arc-extinguishing grid pieces 2 are made of steel materials, nickel films are plated on the arc-extinguishing grid pieces 2, fixing plates 3 are fixedly arranged at two ends of the connecting side plates 1, the fixing plates 3 and the connecting side plates 1 are arranged at right angles, two anti-drop clamping blocks 4 are fixedly arranged at two sides of the arc-extinguishing grid pieces 2, anti-drop fasteners 5 are arranged on the fixing plates 3 and the anti-drop clamping blocks 4 in an inserted mode, the phenomenon of loosening and dropping between the arc-extinguishing grid pieces 2 and the connecting side plates 1 is effectively avoided through the arrangement of the structure, normal operation of an arc-extinguishing chamber is ensured, and the overall stability of the arc-extinguishing chamber is improved.
According to the circuit breaker arc-extinguishing cover with the arc-extinguishing grid piece anti-drop function, the surface of the connecting side plate 1 is provided with the plurality of anti-drop clamping interfaces 6 matched with the anti-drop clamping blocks 4, the anti-drop clamping blocks 4 are clamped into the anti-drop clamping interfaces 6, the anti-drop clamping blocks are longer than the anti-drop clamping interfaces 6, the anti-drop fastening piece 5 comprises the anti-drop inserting rod 7, threads are fixedly arranged at the outer diameter of one end of the anti-drop inserting rod 7, the anti-drop inserting rod 7 is provided with the fastening bolts 8 through threaded connection, and the anti-drop inserting rod 7 and the fastening bolts 8 are provided with four groups in total and are arranged in a symmetrical structure. The fixed plate 3 with the through-hole 9 has all been seted up on the anticreep joint piece 4, anticreep inserted bar 7 alternate set up in the through-hole 9, the through-hole 9 is on same horizontal line all, arc striking opening 10 has been seted up on the arc extinguishing bars piece 2, be equidistant between the arc extinguishing bars piece 2 and arrange, can introduce the arc into the explosion chamber through arc striking opening 10 effectively. When the anti-drop plug-in type arc extinguishing device is installed, the connecting side plate 1 is connected with the arc extinguishing grid plate 2, the anti-drop plug-in type arc extinguishing device is connected into the anti-drop clamping interface 6 through the anti-drop clamping block 4, the anti-drop plug-in rods 7 are sequentially inserted into all through holes 9, and the fastening bolts 8 are connected with the anti-drop plug-in rods 7 through threads and screwed, so that the installation can be completed.
The circuit breaker arc-extinguishing cover with the arc-extinguishing grid piece anti-drop function is common in mechanical mode in the installation mode, connection mode or arrangement mode, and can be implemented as long as the beneficial effects of the circuit breaker arc-extinguishing cover can be achieved.
The foregoing is a further elaboration of the present utility model in connection with the detailed description, and it is not intended that the utility model be limited to the specific embodiments shown, but rather that a number of simple deductions or substitutions be made by one of ordinary skill in the art without departing from the spirit of the utility model, should be considered as falling within the scope of the utility model as defined in the appended claims.
Claims (5)
1. The utility model provides a circuit breaker explosion vent with arc extinguishing bars piece anticreep function, includes two connection curb plates (1), anticreep inserted bar (7) to and install a plurality of arc extinguishing bars pieces (2) of vertical arranging between two connection curb plates (1), its characterized in that: the anti-falling arc extinguishing grid is characterized in that fixing plates (3) are fixedly arranged at two ends of the connecting side plates (1), anti-falling clamping blocks (4) are fixedly arranged at two sides of the arc extinguishing grid piece (2), and anti-falling fasteners (5) are arranged on the fixing plates (3) and the anti-falling clamping blocks (4) in an inserted mode.
2. The arc chute of a circuit breaker with arc chute sheet anti-drop function of claim 1, wherein: the anti-falling clamping interfaces (6) matched with the anti-falling clamping blocks (4) are formed in the surface of the connecting side plate (1), and the anti-falling clamping blocks (4) are clamped into the anti-falling clamping interfaces (6).
3. The arc chute of a circuit breaker with arc chute sheet anti-drop function of claim 1, wherein: the anti-falling fastener (5) comprises an anti-falling inserting rod (7), threads are fixedly arranged on the outer diameter of one end of the anti-falling inserting rod (7), and fastening bolts (8) are arranged on the anti-falling inserting rod (7) through threaded connection.
4. The arc chute of a circuit breaker with arc chute sheet anti-drop function of claim 1, wherein: through holes (9) are formed in the fixing plate (3) and the anti-falling clamping blocks (4), and the anti-falling inserting rods (7) are arranged in the through holes (9) in an inserted mode.
5. The arc chute of a circuit breaker with arc chute sheet anti-drop function of claim 1, wherein: arc striking openings (10) are formed in the arc extinguishing grid plates (2), and the arc extinguishing grid plates (2) are distributed at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321628711.4U CN220895442U (en) | 2023-06-26 | 2023-06-26 | Circuit breaker arc-extinguishing chamber with arc-extinguishing gate piece anticreep function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321628711.4U CN220895442U (en) | 2023-06-26 | 2023-06-26 | Circuit breaker arc-extinguishing chamber with arc-extinguishing gate piece anticreep function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220895442U true CN220895442U (en) | 2024-05-03 |
Family
ID=90837049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321628711.4U Active CN220895442U (en) | 2023-06-26 | 2023-06-26 | Circuit breaker arc-extinguishing chamber with arc-extinguishing gate piece anticreep function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220895442U (en) |
-
2023
- 2023-06-26 CN CN202321628711.4U patent/CN220895442U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |