CN210722940U - Conductive arc-extinguishing device of residual current circuit breaker - Google Patents
Conductive arc-extinguishing device of residual current circuit breaker Download PDFInfo
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- CN210722940U CN210722940U CN201922207329.6U CN201922207329U CN210722940U CN 210722940 U CN210722940 U CN 210722940U CN 201922207329 U CN201922207329 U CN 201922207329U CN 210722940 U CN210722940 U CN 210722940U
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- static contact
- base
- conducting strip
- arc extinguishing
- installation cavity
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Abstract
The utility model relates to a conductive arc extinguishing device of a leakage circuit breaker, which comprises a base, wherein the front side and the rear side of the base are respectively provided with a moving contact terminal and a static contact terminal, the base is provided with a static contact and an arc extinguishing chamber, one side of the base close to the static contact terminal is provided with an installation cavity, the bottom of the installation cavity is provided with a conducting strip, one end of the conducting strip is electrically connected with the static contact terminal, one end of the conducting strip far away from the static contact terminal is provided with a hinged seat, the hinged seat is hinged with a static contact plate, the static contact is arranged at one end of the static contact plate close to the static contact terminal, the conducting strip is provided with a reset piece which drives the static contact plate to always rotate towards the outside of the installation cavity, the base is inserted with an insulating seat at the installation cavity, the side edge of the upper storage cavity is provided with a positioning groove for the positioning plate to be inserted. Through adopting above-mentioned scheme, its simple structure, easy dismounting.
Description
Technical Field
The utility model belongs to the technical field of the leakage circuit breaker technique and specifically relates to a conductive arc control device of leakage circuit breaker.
Background
The electric leakage circuit breaker has overload, undervoltage and earth leakage protection, general electric leakage circuit breaker includes base and upper cover, both sides are provided with the terminal around the base, be equipped with the static contact on the base, the moving contact, moving contact operating device, from contacting to detached in-process at static contact and moving contact, can produce electric arc, make the unable open circuit of circuit breaker, in order to prevent this process, when designing the circuit breaker, adorn two contacts in an arc extinguish chamber, there are many passageways inside the arc extinguish chamber, firstly, cut apart electric arc, secondly, utilize the high-pressure draught that electric arc high temperature produced, blow out electric arc through the certain passageway spout of arc extinguish chamber. The arc extinguish chamber and the base are usually inconvenient to disassemble and assemble.
Disclosure of Invention
The utility model overcomes prior art's is not enough, provides a leakage circuit breaker's electrically conductive arc control device, its simple structure, easy dismounting.
In order to realize the purpose, the utility model discloses a technical scheme is: a conductive arc extinguishing device of a leakage circuit breaker comprises a base, wherein a moving contact terminal and a static contact terminal are respectively arranged on the front side and the rear side of the base, a static contact and an arc extinguishing chamber are arranged on the base, an installation cavity is arranged beside the static contact terminal on the base, a conducting strip is arranged at the bottom of the installation cavity, one end of the conducting strip is electrically connected with the static contact terminal, a hinged seat is arranged at one end of the conducting strip away from the static contact terminal, a static contact is hinged on the hinged seat, the static contact is arranged at one end of the static contact close to the static contact terminal, a reset piece for driving the static contact to always rotate towards the outside of the installation cavity is arranged on the conducting strip, a limit structure for limiting the swinging angle of the static contact is arranged between the static contact and the conducting strip, an insulating seat is inserted in the, the upper portion of insulating seat is equipped with the overhead thing chamber that supplies the explosion chamber to place, is equipped with the first opening that is used for communicateing overhead thing chamber and lower thing chamber on the insulating seat, and the static contact is located first opening part, the explosion chamber is including the locating plate that is located both sides and a plurality of interval distribution's arc extinguishing bars piece, and the second opening of arc extinguishing bars piece is back to the static contact terminal, and the arc extinguishing bars piece that is located the installation cavity bottom is close to first opening setting, the side department of overhead thing chamber is equipped with and supplies the locating plate to insert the constant head tank of establishing.
Through adopting above-mentioned scheme, install conducting strip and static contact piece in the bottom of installation cavity earlier, then insert the insulator bay and establish on the base, the static contact piece is arranged in and is put the thing intracavity down this moment, the insulator bay can prevent the electric leakage effectively, the moving contact of circuit breaker can wear to establish the static contact of first opening and static contact piece and switch on, the last thing chamber department of putting of establishing at the insulator bay is reinserted to the explosion chamber, the second opening of arc extinguishing bars piece is back to the static contact terminal, the moving contact can be in the activity of the second opening part of arc extinguishing bars piece, and reasonable design can not take place to interfere, insulator bay and explosion chamber all adopt to insert the mode installation of establishing, moreover, the steam.
The utility model discloses a further setting is: the outer sleeve of static contact piece, the static contact salient sets up in insulating cover, limit structure includes the spacing groove of setting on the conducting strip and sets up the gag lever post on insulating cover, and the gag lever post is inserted and is located the spacing groove and can slide along the spacing groove, is equipped with the trapezoidal lug with trapezoidal recess shape adaptation on the base in the department that corresponds trapezoidal recess.
By adopting the scheme, the insulating sleeve is made of plastics, when the moving contact passes through the first opening and abuts against the static contact, the static contact piece can be abutted against and swing towards the direction close to the conducting strip, and the limiting rod swings along with the static contact piece until the limiting rod abuts against one end of the limiting groove; when the moving contact breaks away from the contact with the static contact, the static contact swings under the drive of the reset piece until the limiting rod is abutted against the other end of the limiting groove, the structure is simple, the design is reasonable, and the electric leakage is effectively prevented by arranging the insulating sleeve.
The utility model discloses a further setting is: the insulating seat is equipped with the picture peg in the one side that is close to the static contact terminal, be equipped with on the base and supply the picture peg to insert the slot of establishing, the insulating seat is equipped with trapezoidal recess near picture peg department, is equipped with the trapezoidal lug with trapezoidal recess shape adaptation on the base.
By adopting the above scheme, when the insulating base is installed, the inserting plate is aligned to the inserting slot, the trapezoidal groove is aligned to the trapezoidal bump, then the insulating base is pressed until the insulating base is abutted to the conductive sheet, the insulating base can be positioned and installed, the structure is simple, and the dismounting and the mounting are convenient.
The utility model discloses a further setting is: the insulating seat is provided with a third opening at the position corresponding to the limiting rod, and when the insulating seat is inserted into the installation cavity, the limiting rod is arranged at the third opening.
Through adopting above-mentioned scheme, the insulating seat is inserted and is established the installation back, and gag lever post and insulating seat can not take place to interfere reasonable in design.
The utility model discloses a further setting is: the piece that resets is the torsional spring of installing on the conducting strip, and the one end and the static contact of torsional spring are inconsistent, and the other end is inconsistent with the conducting strip.
By adopting the scheme, the side surface of the conducting plate is provided with the convex block, the torsional spring is sleeved on the convex block, and the torsional spring can automatically drive the static contact plate to rotate towards the outside of the mounting cavity so as to realize reset.
The utility model discloses a further setting is: and an inclined plane is arranged at one end of the insulating seat close to the moving contact binding post.
Through adopting above-mentioned scheme, the insulator bay sets up the inclined plane, can avoid the moving contact to contradict with the insulator bay at the wobbling in-process, and the structure sets up rationally.
The present invention will be further described with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a matching structure of the arc extinguish chamber, the insulating base and the conducting strip;
FIG. 3 is a schematic view of the mating structure of the conducting strip, the static contact and the insulating sleeve;
FIG. 4 is a schematic front view of the insulating base;
FIG. 5 is a schematic view of a bottom structure of the insulating base;
FIG. 6 is a schematic view of the fitting structure of the static contact, the insulating sleeve and the limiting rod;
FIG. 7 is a schematic structural diagram of an arc extinguishing chamber;
FIG. 8 is a schematic structural view of a base;
FIG. 9 is an enlarged view of section A of FIG. 8;
fig. 10 is a schematic structural view of a conductive sheet.
Detailed Description
As shown in fig. 1-10, a conductive arc extinguishing device of a leakage breaker comprises a base 1, a movable contact terminal 21 and a fixed contact terminal 22 are respectively disposed on the front side and the rear side of the base 1, a fixed contact 31 and an arc extinguishing chamber 4 are disposed on the base 1, an installation cavity 11 is disposed on the base 1 near the fixed contact terminal 22, a conductive plate 5 is fixedly disposed at the bottom of the installation cavity 11, one end of the conductive plate 5 is directly connected with the fixed contact terminal 22 in a rotating manner, a hinged seat 51 is disposed at one end of the conductive plate 5 far away from the fixed contact terminal 22, a fixed contact 3 is hinged on the hinged seat 51, the fixed contact 3 is disposed at one end of the fixed contact 3 near the fixed contact terminal 22, a reset member for driving the fixed contact 3 to rotate towards the outside of the installation cavity 11 all the time is disposed on the conductive plate 5, the, the torsion spring 6 is sleeved on the bump 52, one end of the torsion spring 6 is abutted against the static contact piece 3, the other end is abutted against the conducting strip 5, the reset element can also be a spring, a limit structure for limiting the swing angle of the static contact piece 3 is arranged between the static contact piece 3 and the conducting strip 5, the base 1 is inserted in the installation cavity 11 and provided with an insulating seat 7, the insulating seat 7 is made of plastics, the lower part of the insulating seat 7 is provided with a lower object cavity 71 for accommodating the static contact piece 3, the upper part of the insulating seat 7 is provided with an upper object cavity 72 for accommodating the arc extinguish chamber 4, the insulating seat 7 is provided with a first opening 73 for communicating the upper object cavity 71 with the lower object cavity 72, the static contact 31 is positioned at the first opening 73, the arc extinguish chamber 4 comprises positioning plates 41 positioned at two sides and a plurality of arc extinguish grid pieces 42 distributed at intervals, the second openings of the arc extinguish grid pieces 42 are opposite to the static contact post 22, the arc extinguish grid pieces 42 positioned at, a positioning groove 74 for inserting the positioning plate 41 is formed at the side edge of the upper storage cavity 72.
In this embodiment, the outer cover has insulating cover 8 on static contact 3, insulating cover 8 adopts plastics to make, and static contact 31 is outstanding in the setting of insulating cover 8, and limit structure is including setting up spacing groove 53 on conducting strip 5 and setting up gag lever post 9 on insulating cover 8, and gag lever post 9 wears to locate insulating cover 8 and static contact 3, and gag lever post 9 is inserted and is located spacing groove 53 and can follow spacing groove 53 and slide, and gag lever post 9 can restrict the swing of static contact 3 with the both ends counterbalance of spacing groove 53.
In this embodiment, an insertion plate 75 is disposed on a side of the insulating base 7 close to the fixed contact terminal 22, a slot 12 for the insertion plate 75 to be inserted is disposed on the base 1, a trapezoidal groove 76 is disposed on the insulating base 7 close to the insertion plate 75, and a trapezoidal protrusion 13 adapted to the shape of the trapezoidal groove 76 is disposed on the base 1 corresponding to the trapezoidal groove 76.
In this embodiment, the insulating base 7 is provided with a third opening 77 at a position corresponding to the limiting rod 9, and when the insulating base 7 is inserted into the mounting cavity 11, the limiting rod 9 is disposed at the third opening 77.
In this embodiment, the insulating base 7 is provided with a slope 78 at an end close to the movable contact terminal 21.
The above embodiment is only one of the preferred embodiments of the present invention, and the general changes and substitutions performed by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a conductive arc control device of residual current circuit breaker, includes the base, and both sides are provided with moving contact terminal and static contact terminal respectively around the base, are equipped with static contact and explosion chamber on the base, its characterized in that: an installation cavity is arranged on one side of the base close to the static contact binding post, a conducting strip is arranged at the bottom of the installation cavity, one end of the conducting strip is electrically connected with the static contact binding post, a hinged seat is arranged at one end of the conducting strip far away from the static contact binding post, a static contact is hinged on the hinged seat, the static contact is arranged at one end of the static contact close to the static contact binding post, a reset piece for driving the static contact to rotate outwards from the installation cavity all the time is arranged on the conducting strip, a limit structure for limiting the swing angle of the static contact is arranged between the static contact and the conducting strip, an insulating seat is inserted in the installation cavity of the base, a lower object placing cavity for accommodating the static contact is arranged at the lower part of the insulating seat, an upper object placing cavity for placing an arc extinguish chamber is arranged at the upper part of the insulating seat, a first opening for communicating, the arc extinguishing chamber is including the locating plate that is located both sides and a plurality of interval distribution's arc extinguishing bars piece, and the second opening of arc extinguishing bars piece is back to the static contact terminal, and the arc extinguishing bars piece that is located the installation cavity bottom is close to first opening setting, the side department of putting the thing chamber on is equipped with the constant head tank that supplies the locating plate to insert the establishment.
2. A conductive arc extinguishing device of a residual current circuit breaker according to claim 1, characterized in that: the outer cover of static contact piece has insulating cover, the static contact salient sets up in insulating cover, limit structure is including setting up the spacing groove on the conducting strip and setting up the gag lever post on insulating cover, and the gag lever post is inserted and is located the spacing groove and can slide along the spacing groove, and the gag lever post can restrict the swing of static contact with the both ends counterbalance of spacing groove.
3. A conductive arc extinguishing device of a residual current circuit breaker according to claim 1 or 2, characterized in that: the insulating seat is equipped with the picture peg in the one side that is close to the static contact terminal, be equipped with on the base and supply the picture peg to insert the slot of establishing, the insulating seat is equipped with trapezoidal recess being close to picture peg department, is equipped with the trapezoidal lug with trapezoidal recess shape adaptation on the base corresponding trapezoidal recess department.
4. A conductive arc extinguishing device of a residual current circuit breaker according to claim 2, characterized in that: the insulating seat is provided with a third opening at the position corresponding to the limiting rod, and when the insulating seat is inserted into the installation cavity, the limiting rod is arranged at the third opening.
5. A conductive arc extinguishing device of a residual current circuit breaker according to claim 1 or 2, characterized in that: the piece that resets is the torsional spring of installing on the conducting strip, and the one end and the static contact of torsional spring are inconsistent, and the other end is inconsistent with the conducting strip.
6. A conductive arc extinguishing device of a residual current circuit breaker according to claim 1 or 2, characterized in that: and an inclined plane is arranged at one end of the insulating seat close to the moving contact binding post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922207329.6U CN210722940U (en) | 2019-12-10 | 2019-12-10 | Conductive arc-extinguishing device of residual current circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922207329.6U CN210722940U (en) | 2019-12-10 | 2019-12-10 | Conductive arc-extinguishing device of residual current circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210722940U true CN210722940U (en) | 2020-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922207329.6U Active CN210722940U (en) | 2019-12-10 | 2019-12-10 | Conductive arc-extinguishing device of residual current circuit breaker |
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| CN (1) | CN210722940U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114068232A (en) * | 2020-08-10 | 2022-02-18 | 平高集团有限公司 | Quiet end structure of explosion chamber |
-
2019
- 2019-12-10 CN CN201922207329.6U patent/CN210722940U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114068232A (en) * | 2020-08-10 | 2022-02-18 | 平高集团有限公司 | Quiet end structure of explosion chamber |
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