CN217114296U - Arc extinguishing structure and circuit breaker - Google Patents
Arc extinguishing structure and circuit breaker Download PDFInfo
- Publication number
- CN217114296U CN217114296U CN202220949531.5U CN202220949531U CN217114296U CN 217114296 U CN217114296 U CN 217114296U CN 202220949531 U CN202220949531 U CN 202220949531U CN 217114296 U CN217114296 U CN 217114296U
- Authority
- CN
- China
- Prior art keywords
- arc
- circuit breaker
- arc extinguishing
- terminal cover
- spout
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model provides an arc extinguishing structure and a circuit breaker, which relate to the technical field of circuit breakers and solve the technical problem that the installation mode of arc extinguishing grid pieces at an arc spraying port is complicated; the arc extinguishing structure comprises arc extinguishing grid pieces and a base with an arc spraying opening, wherein a raised installation part is arranged on the side part of the arc spraying opening, a cavity channel allowing electric arcs to enter is formed in the installation part, a clamping groove is formed in the installation part, one or more than two clamping grooves are arranged along the length direction of the cavity channel at intervals, and the arc extinguishing grid pieces are inserted into the clamping grooves and fixed in the cavity channel; the utility model discloses arc extinguishing bars piece is spraying arc mouth department simple to operate, does not extend body size, saves space, can effectively reduce and spout arc free particle, can effectively shorten the arc distance of spouting of circuit breaker, and protection distribution lines avoids the secondary harm of electric arc, protection distribution circuit. This circuit breaker is owing to have above-mentioned arc extinguishing structure, can spout the arc mouth at last, spout the arc mouth down and effectively shorten the arc distance that spouts of circuit breaker, and the protection distribution lines avoids the secondary harm of electric arc.
Description
Technical Field
The utility model belongs to the technical field of the circuit breaker technique and specifically relates to an arc extinguishing structure and circuit breaker are related to.
Background
When the breaker is in a breaking process, electric arcs can be generated between the moving contact and the fixed contact, and the electric arcs have conductive performance, so that the current limiting capacity of the breaker can be directly influenced, the breaking capacity can be reduced if the electric arcs cannot be extinguished in time, the service life of the breaker is influenced, and even the personal safety is endangered. Therefore, in order to ensure safety of electricity, arc-extinguishing grid pieces are often used in circuit breakers to extinguish the generated arc.
The existing double-breakpoint circuit breaker has extremely high current limiting and short circuit breaking capacity, but along with the application of the new energy industry, the rated voltage is larger and larger, the arc spraying distance is longer and longer, compared with the traditional single-breakpoint circuit breaker, the double-breakpoint circuit breaker has two ports, and the arc spraying of the double-breakpoint circuit breaker is performed from the upper end and the lower end of the circuit breaker.
The applicant has found that the prior art has at least the following technical problems: the existing arc extinguishing flash sheet is difficult to fix at the arc spraying opening of the circuit breaker, and the installation mode of the arc extinguishing grid sheet at the arc spraying opening is complex, so that the arc extinguishing effect is poor, and potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an arc extinguishing structure and a circuit breaker, which solve the technical problem that the installation mode of arc extinguishing grid pieces at an arc spraying port is complicated in the prior art; the utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a pair of arc extinguishing structure, including arc extinguishing bars piece and the base that has the arc spout mouth, wherein:
spout the lateral part of arc mouth and be provided with bellied installation department, be formed with the chamber way that allows electric arc to get into in the installation department, be provided with the draw-in groove on the installation department, the draw-in groove is followed the length direction that the chamber was said is provided with one or the interval and is provided with more than two, the arc extinguishing bars piece inserts in the draw-in groove and be fixed in the chamber way.
Preferably, when the mounting portion is provided with more than two clamping grooves, all the clamping grooves are arranged at intervals along the length direction of the cavity.
Preferably, the arc extinguishing structure further comprises a wiring terminal cover, the wiring terminal cover is fixed in the arc spraying port in a clamping mode, and the wiring terminal cover can be used for plugging at least one opening side of the clamping groove when being assembled in place.
Preferably, the lateral part of binding post cover is provided with the accepting part, the installation department can stretch into in the accepting part and will binding post cover joint is fixed in spout in the arc mouth, just binding post cover is in when spouting the arc mouth internal fixation and targetting in place, the accepting part will the shutoff of an at least opening side of draw-in groove.
Preferably, the installation department is provided with spout the relative both sides of arc mouth, the accepting part is located the relative both sides of binding post cover, binding post cover with when the base joint is fixed, the installation department stretches into and corresponds in the accepting part.
Preferably, the receiving portion is a groove structure, and at least one side opening of the groove structure is arranged towards the mounting portion.
Preferably, the base is provided with more than two arc spraying openings, and all the arc spraying openings are arranged at intervals along the width direction or the length direction of the base.
Preferably, the cross section of the arc chute sheet is the same as the cross section of the cavity channel.
The utility model also provides a circuit breaker, including above-mentioned arc extinguishing structure.
Preferably, the arc spraying port comprises an upper arc spraying port and a lower arc spraying port, and the arc extinguishing structure is arranged at the upper arc spraying port and/or the lower arc spraying port.
The utility model provides an arc extinguishing structure and circuit breaker compares with prior art, has following beneficial effect: spout arc mouth department and set up bellied installation department, set up the draw-in groove on the installation department, the arc extinguishing bars piece is fixed in the chamber of installation department is said through the mode that inserts in the draw-in groove, above-mentioned arc extinction structure, the arc extinguishing bars piece is spouting arc mouth department simple to operate, does not extend body size, saves space, can effectively reduce and spout the free particle of arc, can effectively shorten the arc distance of spouting of circuit breaker, the protection distribution lines avoids the secondary harm of electric arc, protection distribution circuit. This circuit breaker is owing to have above-mentioned arc extinguishing structure, can spout the arc mouth at last, spout the arc mouth down and effectively shorten the arc distance that spouts of circuit breaker, and the protection distribution lines avoids the secondary harm of electric arc.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an exploded view of a circuit breaker having the arc extinguishing structure;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a schematic structural view of the terminal cover;
FIG. 4 is a schematic structural view of the arc chute after being matched with one of the slots;
FIG. 5 is a schematic view of the terminal, arc chute and mounting portion assembled in place;
fig. 6 is a partially enlarged view at B in fig. 5.
100, circuit breaker; 101. a lower arc spraying port; 102. a base; 1. an installation part; 11. a lumen; 12. a card slot; 2. arc extinguishing grid pieces; 3. a terminal cover; 31. a bearing part.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment of the utility model provides an arc extinguishing structure and circuit breaker, arc extinguishing bars piece is not adding long body size at spout arc mouth simple to operate, saves space, can effectively reduce and spout arc free particle, can effectively shorten the arc distance of spouting of circuit breaker.
The technical solution provided by the present invention is explained in more detail with reference to fig. 1 to 6.
Example one
As shown in fig. 1 to fig. 6, the present embodiment provides an arc extinguishing structure, which includes arc extinguishing grid plates 2 and a base 102 having an arc spraying opening, wherein: the lateral part of the arc spraying opening is provided with a raised installation part 1, a cavity channel 11 allowing an arc to enter is formed in the installation part 1, a clamping groove 12 is arranged on the installation part 1, one or more than two clamping grooves 12 are arranged along the length direction of the cavity channel 11 at intervals, and the arc extinguishing grid plates 2 are inserted into the clamping grooves 12 and fixed in the cavity channel 11.
The arc-extinguishing grid plates 2 are the existing mature technologies, and the arc-extinguishing grid plates 2 are generally made of steel sheets, which are not described herein again. For the double-break-point circuit breaker 100, the arc-extinguishing structure in this embodiment may be separately disposed on the upper arc-spraying opening or the lower arc-spraying opening 101, or both the upper arc-spraying opening and the lower arc-spraying opening 101 may be disposed with the arc-extinguishing structure.
The arc extinguishing structure of this embodiment, spout arc mouth department and set up bellied installation department 1, set up draw-in groove 12 on installation department 1, arc extinguishing bars piece 2 is fixed in installation department 1's chamber way 11 through the mode that inserts in draw-in groove 12, above-mentioned arc extinguishing structure, arc extinguishing bars piece 2 is spouting arc mouth department simple to operate, do not increase body size, save space, can effectively reduce and spout arc free particle, can effectively shorten the arc distance of spouting of circuit breaker 100, the protection distribution lines avoids the secondary harm of electric arc, protection distribution circuit.
As an alternative embodiment, referring to fig. 1 and 2, when more than two card slots 12 are provided on the mounting portion 1, all the card slots 12 are arranged at intervals along the length direction of the cavity 11.
In this embodiment, three clamping grooves 12 (not limited to this quantity) are provided on each installation part 1, the three clamping grooves 12 are arranged at intervals along the length direction of the channel 11, when a short-circuit large current exists in the distribution line, the breaker 100 breaks the short-circuit large current, and arc free particles block and extinguish layer by layer through a plurality of arc-extinguishing grid pieces 2 in the channel 11 of the installation part 1, so that the arc-extinguishing effect is improved, the distribution line can be effectively protected, and the secondary damage of the arc particles to the distribution cabinet is prevented.
In order to further fix the arc chute blade 2, as an alternative embodiment, as shown in fig. 1 and 3, the arc extinguishing structure further comprises a terminal cover 3, the terminal cover 3 is fixed in the arc spout in a clamping manner, and the terminal cover 3 can block at least one opening side of the clamping groove 12 when being assembled in place.
Referring to fig. 1, 3 and 6, when the wiring terminal cover 3 is clamped into the arc spraying opening, the wiring terminal cover 3 plugs at least one opening side of the clamping groove 12, so that the arc extinguishing grid pieces 2 can be prevented from falling out of the clamping groove 12, the arc extinguishing grid pieces 2 are further fixed, the structural stability is improved, and the arc extinguishing grid pieces 2 can normally work in the cavity channel 11 of the mounting part 1.
As an alternative embodiment, the side portion of the terminal cover 3 is provided with a receiving portion 31, the mounting portion 1 can extend into the receiving portion 31 and clamp and fix the terminal cover 3 in the arc spraying opening, and when the terminal cover 3 is fixed in place in the arc spraying opening, the receiving portion 31 blocks at least one opening side of the slot 12.
As an alternative embodiment, the mounting portion 1 is provided with two opposite sides of the arc spraying opening, the receiving portion 31 is located at two opposite sides of the terminal cover 3, and when the terminal cover 3 is clamped and fixed with the base 102, the mounting portion 1 extends into the corresponding receiving portion 31. And one of the two mounting parts 1 in the same spray arc opening protrudes towards the other direction.
As an alternative embodiment, referring to fig. 1 and 3, fig. 5, and fig. 6, the receiving portion 31 is a groove structure, and at least one side of the groove structure is opened toward the mounting portion 1. Referring to fig. 1 and 3, when the terminal cover 3 is fixed to the base 102 in a clamping manner, the protruding mounting portion 1 extends into the corresponding receiving portion 31, the mounting portion 1 and the receiving portion 31 are matched with each other, and when the terminal cover 3 is clamped and fixed in the arc spraying opening, the terminal cover 3 can prevent the arc extinguishing grid piece 2 from coming off from the clamping groove 12, so that the structural stability is further improved.
As an alternative embodiment, referring to fig. 1, two or more arc spraying openings (lower arc spraying openings 101 in fig. 1) are provided on the base 102, and all the arc spraying openings are arranged at intervals along the width direction or the length direction of the base 102. As shown in fig. 1, in the present embodiment, three lower arc spraying ports 101 are provided on a base 102, and the three lower arc spraying ports 101 are arranged at intervals in the width direction of the base 102.
As an alternative embodiment, see fig. 1, the arc chute 2 has a cross-section of the same shape as the cross-section of the channel 11. In this embodiment, the cavity 11 in the installation portion 1 is a rectangular structure (not limited to this structure), and the arc-extinguishing grid 2 is a rectangular sheet-shaped structure, so that when the arc-extinguishing grid 2 is fixed in the installation portion 1, arc-extinguishing free particles can be blocked layer by layer, and the arc spraying distance of the circuit breaker 100 can be effectively shortened.
Example two
Referring to fig. 1, 5 and 6, the present embodiment provides a circuit breaker 100 including the arc extinguishing structure described above. This circuit breaker 100 is owing to have above-mentioned arc extinction structure, has 2 simple to operate's of arc extinguishing bars advantage equally, and can spout the arc mouth at last, spout arc mouth 101 under and effectively shorten circuit breaker 100's the arc distance that spouts, protects distribution lines from the secondary harm of electric arc.
As an optional embodiment, the arc spraying openings include an upper arc spraying opening and a lower arc spraying opening 101, and the arc extinguishing structure is disposed at the upper arc spraying opening and/or the lower arc spraying opening 101. Referring to fig. 1, in the circuit breaker 100 of this embodiment, the arc extinguishing structure is disposed at the lower arc spraying port 101 of the base 102, so that the problem of arc spraying at the rear end of the double-break-point circuit breaker 100 is solved, the arc spraying distance of the circuit breaker 100 can be effectively shortened, and the distribution line is protected from secondary damage of the arc.
The particular features, structures, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An arc extinguishing structure, characterized in that, including arc extinguishing bars piece (2) and base (102) that has the arc spout, wherein:
spout the lateral part of arc mouth and be provided with bellied installation department (1), be formed with chamber way (11) that allow electric arc to get into in installation department (1), be provided with draw-in groove (12) on installation department (1), draw-in groove (12) are followed the length direction that chamber was said (11) is provided with one or the interval and is provided with more than two, arc extinguishing bars piece (2) insert in draw-in groove (12) and be fixed in chamber way (11).
2. An arc extinction structure according to claim 1, characterized in that when more than two said slots (12) are provided on the mounting portion (1), all said slots (12) are arranged at intervals along the length direction of the cavity (11).
3. An arc extinction structure according to claim 1, characterized in that the arc extinction structure also comprises a terminal cover (3), the terminal cover (3) is fixed in the arc spraying opening in a clamping mode, and the terminal cover (3) can block at least one opening side of the clamping groove (12) when being assembled in place.
4. An arc extinction structure according to claim 3, characterized in that the side of the terminal cover (3) is provided with a receiving portion (31), the mounting portion (1) can extend into the receiving portion (31) and fix the terminal cover (3) in the arc-spraying opening in a clamping manner, and when the terminal cover (3) is fixed in place in the arc-spraying opening, the receiving portion (31) blocks at least one opening side of the clamping groove (12).
5. An arc extinction structure according to claim 4, characterized in that the mounting portion (1) is provided with opposite sides of the arc ejection opening, the receiving portion (31) is located at opposite sides of the terminal cover (3), and when the terminal cover (3) is fixed with the base (102) in a clamping manner, the mounting portion (1) extends into the corresponding receiving portion (31).
6. An arc extinguishing structure according to claim 4, characterized in that the receiving portion (31) is a groove structure, at least one side of which is open towards the mounting portion (1).
7. An arc extinguishing structure according to claim 1, characterized in that the arc ejection openings are provided in more than two on the base (102), all the arc ejection openings being arranged at intervals in the width direction or the length direction of the base (102).
8. An arc extinction structure according to claim 1, characterized in that the cross section of the arc chute plates (2) is the same shape as the cross section of the cavity (11).
9. A circuit breaker (100) comprising the arc suppression arrangement of any of claims 1-8.
10. The circuit breaker (100) of claim 9, wherein the arc ejection ports comprise an upper arc ejection port and a lower arc ejection port (101), and the arc extinguishing structure is disposed at the upper arc ejection port and/or the lower arc ejection port (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220949531.5U CN217114296U (en) | 2022-04-22 | 2022-04-22 | Arc extinguishing structure and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220949531.5U CN217114296U (en) | 2022-04-22 | 2022-04-22 | Arc extinguishing structure and circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217114296U true CN217114296U (en) | 2022-08-02 |
Family
ID=82585119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220949531.5U Active CN217114296U (en) | 2022-04-22 | 2022-04-22 | Arc extinguishing structure and circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217114296U (en) |
-
2022
- 2022-04-22 CN CN202220949531.5U patent/CN217114296U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201256131Y (en) | Contact system for low voltage circuit breaker | |
| CN217114296U (en) | Arc extinguishing structure and circuit breaker | |
| CN217114297U (en) | External arc extinction subassembly and circuit breaker | |
| KR101503319B1 (en) | Terminal Cover for Circuit Breaker | |
| CN109461614B (en) | Main knife brake device of isolating switch | |
| CN216928464U (en) | Integrated arc extinction cover cap and matched structure | |
| CN217822630U (en) | Terminal cover and circuit breaker | |
| CN112863952A (en) | Electric circuit breaker | |
| CN216120122U (en) | Novel arc extinguishing system of direct current contactor | |
| CN210866017U (en) | Device for preventing switch-on with grounding switch, circuit breaker vehicle and high-voltage cabinet | |
| CN218385091U (en) | Single-frame low-voltage frame circuit breaker | |
| CN210628224U (en) | Contact system of circuit breaker | |
| CN215680594U (en) | Flow guide structure of molded case circuit breaker | |
| CN219457514U (en) | Universal breaker contact mounting seat | |
| CN218585913U (en) | Arc extinguishing grid piece group | |
| CN217134304U (en) | Terminal cover and have its circuit breaker | |
| CN218631886U (en) | Circuit breaker | |
| CN212810218U (en) | Zero-arcing shield shell, zero-arcing shield structure and circuit breaker | |
| CN220121720U (en) | Open-type knife switch | |
| CN211719529U (en) | Shell structure of power distribution electrical appliance and power distribution system | |
| CN217061988U (en) | Circuit breaker | |
| CN216250616U (en) | Be applied to disconnected bars piece limit structure of fuse | |
| CN212485233U (en) | Multipurpose circuit breaker plug board | |
| CN218385095U (en) | Circuit breaker | |
| CN218004673U (en) | Arc extinguish chamber of switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |