CN116895489B - DC1500V arc extinguishing system and production process for producing same - Google Patents
DC1500V arc extinguishing system and production process for producing same Download PDFInfo
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- CN116895489B CN116895489B CN202310615578.7A CN202310615578A CN116895489B CN 116895489 B CN116895489 B CN 116895489B CN 202310615578 A CN202310615578 A CN 202310615578A CN 116895489 B CN116895489 B CN 116895489B
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- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 230000007246 mechanism Effects 0.000 claims description 51
- 230000004888 barrier function Effects 0.000 claims description 21
- 238000002955 isolation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 22
- 230000003068 static effect Effects 0.000 abstract description 11
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000010891 electric arc Methods 0.000 description 52
- 230000002829 reductive effect Effects 0.000 description 9
- 230000008033 biological extinction Effects 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000006698 induction Effects 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000009467 reduction Effects 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 4
- 238000004880 explosion Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/08—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H33/182—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Transmission Devices (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention relates to a DC1500V arc extinguishing system, which further comprises a plurality of arc extinguishing plates, wherein the arc extinguishing plates are arranged in a U-shaped manner, the arc extinguishing plates are stacked and integrally form a fan ring shape, and gaps are arranged between the adjacent arc extinguishing plates at equal intervals; the arc-isolating plates are arranged in a fan ring shape and are two; the permanent magnet is set as a fan ring shape, the inner cambered surface of the permanent magnet is set as an N pole, and the outer cambered surface is set as an S pole; the arc striking angle is arranged on the static contact; the gas collecting cavity is arranged in the shell; wherein, a plurality of arc-extinguishing plates are all established between two arc-extinguishing plates, and the permanent magnet is established in the "U" inslot of arc-extinguishing plate, and the N utmost point of permanent magnet sets up towards the opening direction of arc-extinguishing plate, and arc-extinguishing plate, permanent magnet and a plurality of arc-extinguishing plates stack the centre of a circle that forms the fan ring type and all are on same straight line, and the arc striking angle stretches into in the arc-extinguishing plate, has seted up the exhaust hole of intercommunication gas collection chamber and outside on the casing. The beneficial effects of the invention are as follows: the extinguishing space of the arc is enlarged, and the arc extinguishing effect and speed are effectively improved.
Description
Technical Field
The invention relates to the technical field of isolating switches, in particular to a DC1500V arc extinguishing system and a production process for producing the same.
Background
The isolating switch is one of the common electrical appliances in switching devices and is used for isolating in a circuit. When the direct current isolating switch is disconnected, electric arcs can be generated between the moving contact and the fixed contact, a large amount of heat and air ions are generated by the electric arcs, if the electric arcs stay between the moving contact and the fixed contact for too long, the direct current isolating switch contacts are likely to be burnt out, and even the electric arcs are likely to short out to destroy the switch, so that the arc quenching treatment is needed as soon as possible. The current common practice of the direct current isolating switch is that an arc extinguishing grid plate is arranged below a contact area of a fixed contact and a moving contact, and generated electric arcs leave the contact area and enter the arc extinguishing grid plate to extinguish the arc. In recent years, with the change of primary energy and the requirement of high-power density energy supply, a direct current power grid is vigorously developed in the fields of new energy access, urban distribution network construction, data centers, ships and the like, voltage levels are developed from low voltage to high voltage, short-circuit breaking current reaches hundreds of kiloamperes, a new requirement is provided for a direct current breaking technology and switch equipment, for high-capacity direct current breaking, no natural zero crossing point exists in the direct current, an inductor (circuit and load) exists in a direct current loop, overvoltage is generated between the breaks by system inductance and unreleased energy, breakdown of the break of a direct current switch is extremely easy to cause, so that an arc is reburnt, and the switch is damaged or even burnt out by the fact that the arc cannot be extinguished timely.
Chinese patent 2021220895147 discloses an arc-extinguishing chamber, which comprises two arc-extinguishing plates arranged oppositely and a plurality of arc-extinguishing bars arranged between the two arc-extinguishing plates, wherein all arc-extinguishing bars are arranged at radial intervals from the inlet to the outlet of the arc-extinguishing chamber; the arc extinguishing chamber further comprises an arc entering channel which is of an arc-shaped structure, the arc entering channel comprises a channel inlet section, a channel middle section and a channel tail section, the channel inlet section, the channel middle section and the channel tail section are sequentially connected from an inlet of the arc extinguishing chamber to an outlet, the channel inlet section is of a horn-shaped structure, a small opening end of the channel inlet section is connected with the channel middle section, the width of the channel middle section is constant, and the channel tail section comprises two V-shaped channels which are arranged side by side. The conductive device comprises a conductive device shell, and a contact system and an arc extinguishing system which are arranged in the conductive device shell and are matched with each other for use, wherein the contact system comprises a movable contact mechanism which is pivoted on the conductive device shell and a fixed contact matched with the movable contact mechanism, and an operating mechanism is connected with the movable contact mechanism in a driving way to drive the movable contact mechanism to rotate, so that the movable contact mechanism and the fixed contact are closed or opened. Further, the moving contact mechanism comprises a contact support which is pivoted and a moving contact assembly which is inserted on the contact support and two ends of which protrude out of the outer sides of the two radial ends of the contact support, and two fixed contacts are arranged on two sides of the moving contact mechanism and are respectively matched with two ends of the moving contact mechanism; the arc extinguishing system comprises two arc extinguishing chambers which are respectively arranged at two sides of the contact system. The arc extinguishing system further comprises permanent magnets, wherein the permanent magnets are arranged outside outlets of the arc extinguishing chambers, the two permanent magnets are respectively arranged at one ends of the two arc extinguishing chambers, which are close to the fixed contacts, or the two permanent magnets are arranged at the middle parts of the two arc extinguishing chambers and are biased towards one ends of the arc extinguishing chambers, which are far away from the fixed contacts corresponding to the arc extinguishing chambers.
In the above patent, the arc generated when the moving contact mechanism and the fixed contact are closed or opened is subjected to lorentz force caused by the magnetic field generated by the permanent magnet, so that the arc is deflected into the arc extinguishing chamber, the arc is quickly deflected to the bottom of the arc extinguishing grid plate in the arc extinguishing chamber, the arc is more quickly extinguished by dividing the arc extinguishing grid plate, but the extinguishing path of the arc is also limited due to the limited width of the bottom of the arc extinguishing grid plate, when overload happens suddenly in a circuit, the arc extinguishing chamber in the patent is difficult to effectively and quickly extinguish the arc, the arc extinguishing effect is poor, a large amount of gas is generated in the arc extinguishing chamber in the moment when the arc is generated, and if the arc cannot be extinguished timely, the gas in the isolating switch cannot be discharged timely, so that the isolating switch is exploded.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a DC1500V arc extinguishing system and a production process for producing the same so as to solve the problems.
The technical scheme of the invention is realized as follows: a DC1500V arc extinguishing system, which comprises a shell, a moving contact mechanism arranged in the shell and rotating, two matched fixed contacts, and also comprises,
The arc extinguishing plates are provided with a plurality of U-shaped arc extinguishing plates, the arc extinguishing plates are stacked and integrally form a fan ring shape, and gaps are formed between adjacent arc extinguishing plates at equal intervals;
the arc-shaped isolation plates are arranged in a fan ring shape and are two;
the permanent magnet is set to be a fan ring shape, the inner cambered surface of the permanent magnet is set to be an N pole, and the outer cambered surface is set to be an S pole;
the arc striking angle is arranged on the static contact;
the gas collecting cavity is arranged in the shell;
the arc extinguishing plates are arranged between the arc extinguishing plates, the permanent magnets are arranged in U-shaped grooves of the arc extinguishing plates, the N poles of the permanent magnets are arranged towards the opening direction of the arc extinguishing plates, the permanent magnets and the arc extinguishing plates are stacked to form a fan-shaped circle center on the same straight line, the arc striking angles extend into the arc extinguishing plates, and exhaust holes communicated with the gas collecting cavity and the outside are formed in the shell.
By adopting the technical scheme, the permanent magnet is arranged in the U-shaped groove of the arc extinguishing piece, so that the permanent magnet is closer to an electric arc generated when the moving contact mechanism rotates and the fixed contact is closed or opened, the magnetic induction intensity acting on the electric arc is higher, the Lorentz force on the electric arc is improved, the electric arc is quickly deviated to the left side or the right side of the arc extinguishing piece, the extinguishing space of the electric arc is increased, the arc extinguishing effect and speed are effectively improved, the opening distance of the rotating moving contact mechanism can be effectively reduced, the integral volume of the nonpolar direct current isolating switch is reduced, and the cost is reduced; when the nonpolar direct current isolating switch is powered on positively, the static contact on the left side is connected with the negative electrode, the static contact on the right side is connected with the positive electrode, the current direction of the electric arc is approximately upward along the movement direction of the moving contact mechanism, and the electric arc is subjected to a force perpendicular to the magnetic induction line and rightward according to the left hand rule, so that the electric arc is deviated to the right side of the arc extinguishing piece, the side edge part on the right side of the arc extinguishing piece is divided, the arc barrier can effectively limit the electric arc between the side edge parts, and the electric arc moves rightward and rearward along the side edge part, thereby realizing arc extinction; when the nonpolar direct current isolating switch is reversely electrified, the static contact on the left side is connected with the positive electrode, the static contact on the right side is connected with the negative electrode, the current direction of the electric arc is approximately downward along the motion direction of the moving contact mechanism, and the electric arc is subjected to a force perpendicular to the magnetic induction line and leftwards according to the left hand rule, so that the electric arc is deviated to the left side of the arc extinguishing piece and is divided by the side edge part on the left side of the arc extinguishing piece, the arc barrier can effectively limit the electric arc between the side edge parts, the electric arc moves leftwards and backwards along the side edge parts, and the extinguishing path of the electric arc is controlled, so that the extinguishing effect is improved; when the electric arc is generated, gas generated by the arc extinguishing system can stay in the gas collecting cavity and form air pressure for the electric arc, the electric arc is extinguished, after the electric arc is extinguished, the gas is discharged through the exhaust hole, the air pressure generated in the isolating switch can be effectively discharged through the exhaust hole, the isolating switch is prevented from explosion, and meanwhile, an arc striking angle on the static contact can effectively introduce the electric arc into the arc extinguishing system, so that the electric arc is guided, and the arc extinguishing effect is improved; therefore, no matter whether the wiring direction of the direct current isolating switch is positive or reverse, the arc can be effectively led into the left side or the right side of the arc extinguishing piece, the extinguishing space of the arc is increased, and even if an overload arc extinguishing system suddenly occurs on a circuit, the arc can be effectively extinguished, the wiring is more convenient, and the arc extinguishing effect is better.
The invention is further provided with: further comprises:
the permanent magnet device comprises an insulating frame, a permanent magnet and a permanent magnet, wherein a groove for installing the permanent magnet is formed in the insulating frame, and the insulating frame is in a fan ring shape;
the arc extinguishing device comprises an insulating frame, arc extinguishing plates, arc striking angles, an arc striking space and an insulating frame, wherein the arc striking angles extend into the arc extinguishing space, the arc striking angles are arranged in U-shaped grooves of the arc extinguishing plates, the arc striking angles are arranged on the arc extinguishing plates, and the arc striking angles are arranged on the arc extinguishing plates.
Through adopting above-mentioned technical scheme, the permanent magnet passes through insulator bracket fixed mounting in the arc extinguishing piece, makes the permanent magnet more stable in the arc extinguishing piece.
The invention is further provided with: the arc extinguishing piece comprises:
a bottom;
the side edge part is provided with two symmetrical side edge parts which are arranged on the same side of the bottom, the side edge part comprises an inlet part and an outlet part, the inner side of the inlet part is provided with a first inclined plane, one end with larger width of the inlet part is connected with the outlet part, and one end, far away from the inlet part, of the outer side of the outlet part is provided with a second inclined plane;
the one end that draws forth portion to keep away from the portion of leading in is connected with the bottom, the both sides joint of insulating frame is between two draw forth portion of side portion, the extrados of insulating frame is contradicted with the inboard of bottom and is connected.
Through adopting above-mentioned technical scheme, can make the opening part loudspeaker form setting of arc extinguishing piece for in the arc extinguishing piece can be better entered into to the electric arc, and the route that the control electric arc extinguished improves the effect of arc extinction.
The invention is further provided with: the distance d between the ends of the introduction parts with smaller widths, which are adjacent to each other, is set to be 1.5mm-2.5mm.
Through adopting above-mentioned technical scheme, can effectually control the holistic volume size behind the arc extinguishing piece pile up, reduce isolator's volume, reduction in production cost can also guarantee the effect of arc extinction.
The invention is further provided with: the included angle alpha between the uppermost arc-extinguishing sheet and the lowermost arc-extinguishing sheet is set to be 25-45 degrees.
Through adopting above-mentioned technical scheme, the route that the control electric arc that can be better extinguished between the arc extinguishing piece can also reduce the holistic volume size after the arc extinguishing piece piles up, has reduced isolator's volume, reduction in production cost.
The invention is further provided with: the ratio of the length L of the lead-in part to the length L of the lead-out part is 2-2.5:1.
by adopting the technical scheme, the arc extinguishing path can be effectively controlled, and the arc extinguishing effect is ensured.
The invention is further provided with: the included angle beta of the first inclined surface of the introducing part is set to be 70-80 degrees.
Through adopting above-mentioned technical scheme, can make the electric arc efficient enter into in the arc extinguishing piece, can also make the arc extinguishing piece effectual cut apart the electric arc, improved the effect of arc extinction.
The invention is further provided with: the upper end face and the lower end face of the arc-shield plate respectively protrude out of the uppermost arc-extinguishing sheet and the lowermost arc-extinguishing sheet, and the upper end face and the lower end face of the permanent magnet respectively protrude out of the uppermost arc-extinguishing sheet and the lowermost arc-extinguishing sheet.
Through adopting above-mentioned technical scheme, can effectually restrict electric arc in the arc extinguishing piece completely, can also make the permanent magnet better to the effect of electric arc, improve the effect of arc extinguishing.
A production process for producing the arc extinguishing system, comprising:
s1: the arc extinguishing piece and the arc barrier are arranged in the assembling riveting device;
s2: the riveting device is assembled to fix the arc extinguishing plates and the arc-isolating plates in a riveting way, and the arc extinguishing plates and the arc-isolating plates after riveting are taken out;
s3: the permanent magnet is arranged in the insulating frame;
s4: and (5) loading the insulating frame into the U-shaped groove of the arc extinguishing piece.
Through adopting above-mentioned technical scheme, can be automatic carry out riveting to arc extinguishing piece and flash barrier fixed, need not the manual work and operate, effectual improvement production efficiency.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a perspective view of a structure of an embodiment of the present invention;
FIG. 2 is a schematic diagram of the internal structure of an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a construction of an embodiment of the present invention;
fig. 4 is a schematic structural view of an arc extinguishing system according to an embodiment of the present invention;
fig. 5 is an exploded view of an arc extinguishing system according to an embodiment of the present invention;
fig. 6 is a schematic structural view of an arc extinguishing plate according to an embodiment of the present invention;
fig. 7 is a side view of the structure of an arc extinguishing system according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a stress state of an arc in an arc extinguishing system during forward power connection in an embodiment of the present invention;
FIG. 9 is a two-dimensional schematic diagram of a stress state of an arc under the action of magnetic force of a permanent magnet when the arc is powered on in a forward direction in an embodiment of the invention;
Fig. 10 is a schematic diagram of a stress state of an arc in an arc extinguishing system when reverse power is applied in an embodiment of the present invention;
FIG. 11 is a two-dimensional schematic diagram of the stress state of an arc under the action of the magnetic force of a permanent magnet when reverse power is applied in the embodiment of the invention;
FIG. 12 is a waveform diagram of a test record of the present invention;
FIG. 13 is a graph of an oscillogram of the present invention showing the switching on and off capability;
FIG. 14 is a perspective view of a structure of an assembled riveting device when a positioning block is positioned at a loading station in an embodiment of the invention;
FIG. 15 is a schematic view of a partial structure of an assembled riveting device according to an embodiment of the invention;
FIG. 16 is a top view of the internal structure of the drive mechanism according to the embodiment of the present invention;
FIG. 17 is a top view of a second internal structure of the driving mechanism according to the embodiment of the present invention;
FIG. 18 is a side cross-sectional view of the structure of the assembled riveting device with the locating block in the loading station in accordance with the present invention;
FIG. 19 is a schematic view of the structure of FIG. 18A according to the present invention;
FIG. 20 is a cross-sectional view of the structure of FIG. 19 taken along the direction a-a in accordance with the present invention;
FIG. 21 is a top cross-sectional view of an assembled riveting device with a locating block in a loading station according to an embodiment of the invention;
FIG. 22 is a schematic view of the structure of FIG. 21B according to the present invention;
FIG. 23 is a perspective view of a structure of an assembled riveting device when a positioning block is positioned at a station for installing a flash barrier according to an embodiment of the present invention;
FIG. 24 is a perspective view of a structure of an assembled riveting device with a locating block located at a riveting station according to an embodiment of the present invention;
FIG. 25 is a perspective view of a structure of an assembled riveting device when a positioning block is positioned at a blanking station in an embodiment of the invention;
FIG. 26 is a top cross-sectional view of an assembled riveting device with a locating block in a blanking station in accordance with an embodiment of the present invention;
FIG. 27 is a schematic view of the structure of FIG. 26C in accordance with the present invention;
fig. 28 is a top cross-sectional view of the structure at the rotating disc and locating block in an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-28, the invention discloses a DC1500V arc extinguishing system, which comprises a shell 1, a moving contact mechanism 2 arranged in the shell 1 and rotating, two matched fixed contacts 3, and also comprises,
The arc extinguishing plates 40 are provided with a plurality of U-shaped arc extinguishing plates 40, the arc extinguishing plates 40 are stacked and integrally form a fan ring shape, and gaps are equidistantly arranged between adjacent arc extinguishing plates 40;
the arc-shaped plate 41, wherein the arc-shaped plate 41 is provided with two fan-shaped rings;
the permanent magnet 42, wherein the permanent magnet 42 is a fan ring, the inner cambered surface of the permanent magnet 42 is an N pole, and the outer cambered surface is an S pole;
the arc striking angle 30 is arranged on the fixed contact 3;
the gas collection cavity 14 is arranged in the shell 1;
the arc-extinguishing plates 40 are arranged between the arc-extinguishing plates 41, the permanent magnets 42 are arranged in U-shaped grooves of the arc-extinguishing plates 40, N poles of the permanent magnets 42 are arranged towards the opening direction of the arc-extinguishing plates 40, the arc-extinguishing plates 41, the permanent magnets 42 and a plurality of arc-extinguishing plates 40 are stacked to form a fan-shaped circle center on the same straight line, the arc striking angles 30 extend into the arc-extinguishing plates 40, and the shell 1 is provided with exhaust holes 5 communicated with the gas collecting cavity 14 and the outside.
By adopting the technical scheme, the permanent magnet 42 is arranged in the U-shaped groove of the arc extinguishing sheet 40, so that the permanent magnet is closer to the arc generated when the moving contact mechanism 2 rotates and the fixed contact 3 is closed or opened, the magnetic induction intensity acting on the arc is higher, the lorentz force on the arc is improved, the arc is quickly deflected to the left side or the right side of the arc extinguishing sheet 40, the extinguishing space of the arc is increased, the arcing time in the arc extinguishing system 4 is only 3.71ms when the arc extinguishing system is switched on and off under the conditions of 1612.3V and 1.670KA of current in the attached drawing 12, the arc extinguishing system 4 can finish arc extinguishing in 3.71ms under the conditions of high voltage and high current, the arc extinguishing effect and speed are effectively improved, the opening distance when the moving contact mechanism 2 rotates is effectively reduced, the whole volume of the nonpolar direct current isolating switch is reduced, and the cost is reduced; when the nonpolar direct current isolating switch is powered on positively, the static contact 3 on the left side is connected with the negative electrode, the static contact 3 on the right side is connected with the positive electrode, the current direction of the electric arc is approximately upward along the moving direction of the moving contact mechanism 2, and according to the left hand rule, the electric arc is subjected to a force perpendicular to the magnetic induction line and rightward, so that the electric arc deflects to the right side of the arc extinguishing sheet 40, the side edge 401 on the right side of the arc extinguishing sheet 40 is divided, the arc barrier 41 can effectively limit the electric arc between the side edge 401, and the electric arc moves rightward and backward along the side edge 401, thereby realizing arc extinction; when the nonpolar direct current isolating switch is reversely powered on, the static contact 3 on the left side is connected with the positive electrode, the static contact 3 on the right side is connected with the negative electrode, at the moment, the current direction of the electric arc is approximately downward along the motion direction of the moving contact mechanism 2, and according to the left hand rule, the electric arc is subjected to a force which is perpendicular to the magnetic induction line and leftwards, so that the electric arc is deviated to the left side of the arc extinguishing piece 40, the side edge 401 on the left side of the arc extinguishing piece 40 is divided, the arc barrier 41 can effectively limit the electric arc between the side edge 401, the electric arc moves leftwards and backwards along the side edge 401, and the extinguishing path of the electric arc is controlled, so that the extinguishing effect is improved; when an electric arc is generated, gas generated by an arc extinguishing system stays in the gas collection cavity 14 and forms air pressure for the electric arc, the electric arc is extinguished, after the electric arc is extinguished, the gas is discharged through the exhaust hole 5, the air pressure generated in the isolating switch can be effectively discharged through the exhaust hole 5, the isolating switch is prevented from being exploded, and meanwhile, an arc striking angle 30 on the fixed contact 3 can effectively introduce the electric arc into the arc extinguishing system, so that the electric arc is guided, and the arc extinguishing effect is improved; therefore, no matter whether the wiring direction of the direct current isolating switch is positive or reverse, the arc can be effectively introduced to the left side or the right side of the arc extinguishing sheet 40, so that the extinguishing space of the arc is enlarged, the overload arc extinguishing system 4 can also effectively extinguish the arc even if the circuit suddenly happens, the wiring is more convenient, and the arc extinguishing effect is better.
In an embodiment of the present invention, the method further includes:
an insulation frame 43, wherein a groove 430 for installing the permanent magnet 42 is formed on the insulation frame 43, and the insulation frame 43 is in a fan ring shape;
the outer arc surface of the insulating frame 43 corresponds to the inner wall formed by the arc extinguishing plates 40, the inner arc surface of the insulating frame 43 and two sides of the opening of the arc extinguishing plates 40 form an arc extinguishing space 44, the arc striking angle 30 extends into the arc extinguishing space 44, and the insulating frame 43 is arranged in a U-shaped groove of the arc extinguishing plates 40.
By adopting the technical scheme, the permanent magnet 42 is fixedly arranged in the arc-extinguishing sheet 40 through the insulating frame 43, so that the permanent magnet 42 is more stable in the arc-extinguishing sheet 40.
In an embodiment of the present invention, the arc extinguishing plate 40 includes:
a bottom 400;
a side edge part 401, wherein the side edge part 401 is provided with two symmetrical parts and is arranged on the same side of the bottom 400, the side edge part 401 comprises an inlet part 4010 and an outlet part 4011, a first inclined surface 4012 is arranged on the inner side of the inlet part 4010, one end with a larger width of the inlet part 4010 is connected with the outlet part 4011, and a second inclined surface 4013 is arranged on the outer side of the outlet part 4011 and away from one end of the inlet part 4010;
wherein, one end of the leading-out portion 4011 far away from the leading-in portion 4010 is connected with the bottom 400, two sides of the insulating frame 43 are clamped between the leading-out portions 4011 of the two side edge portions 401, and an extrados surface of the insulating frame 43 is in abutting connection with the inner side of the bottom 400.
Through adopting above-mentioned technical scheme, can make the opening part loudspeaker form setting of arc extinguishing piece 40 for the electric arc can be better enter into in the arc extinguishing piece 40, and the route that the control electric arc extinguished improves the effect of arc extinction.
In the embodiment of the present invention, the distance d between the ends of the introduction portions 4010 adjacent to each other vertically and having a smaller width is set to be 1.5mm to 2.5mm.
Through adopting above-mentioned technical scheme, can effectually control the holistic volume size behind the arc extinguishing piece 40 pile up, reduce isolator's volume, reduction in production cost can also guarantee the effect of arc extinction.
In the embodiment of the present invention, the included angle α between the uppermost arc extinguishing sheet 40 and the lowermost arc extinguishing sheet 40 is set to 25 ° -45 °.
Through adopting above-mentioned technical scheme, the route that the arc extinguished between the arc extinguishing piece 40 can be better control, the holistic volume size after the arc extinguishing piece 40 stacks can also be reduced, isolator's volume has been reduced, reduction in production cost.
In the embodiment of the present invention, the ratio of the length L1 of the inlet 4010 to the length L2 of the outlet 4011 is 2-2.5:1.
by adopting the technical scheme, the arc extinguishing path can be effectively controlled, and the arc extinguishing effect is ensured.
In the embodiment of the present invention, the included angle β of the first inclined surface 4012 of the introducing portion 4010 is set to 70 ° -80 °.
Through adopting above-mentioned technical scheme, can make the efficient entering of electric arc in the arc extinguishing piece 40, can also make arc extinguishing piece 40 effectual cut apart the electric arc, improved the effect of arc extinction.
In the embodiment of the present invention, the upper and lower end surfaces of the arc-barrier 41 protrude from the uppermost arc-extinguishing sheet 40 and the lowermost arc-extinguishing sheet 40, respectively, and the upper and lower end surfaces of the permanent magnet 42 protrude from the uppermost arc-extinguishing sheet 40 and the lowermost arc-extinguishing sheet 40, respectively.
By adopting the technical scheme, the electric arc can be effectively and completely limited in the arc extinguishing sheet 40, the effect of the permanent magnet 42 on the electric arc is better, and the arc extinguishing effect is improved.
A production process for producing the arc extinguishing system, comprising:
s1: the arc extinguishing piece 40 and the arc barrier 41 are arranged in the assembled riveting device;
s2: the riveting device is assembled to fix the arc extinguishing pieces 40 and the arc-isolating plates 41 in a riveting way, and the arc extinguishing pieces 40 and the arc-isolating plates 41 after riveting are taken out;
s3: the permanent magnet 42 is installed in the insulating frame 43;
s4: the insulating frame 43 is fitted into the "U" shaped slot of the arc chute 40.
Through adopting above-mentioned technical scheme, can be automatic carry out the riveting to arc extinguishing piece 40 and flash barrier 41 fixed, need not the manual work and operate, effectual improvement production efficiency.
In an embodiment of the present invention, the assembly riveting device includes:
a frame 6, wherein the frame 6 is of a multi-layer structure;
the rotary disk 7, the periphery of the rotary disk 7 is provided with a positioning block 8 for inserting the arc extinguishing piece 40, and the rotary disk 7 is rotationally connected to the frame 6 through a central shaft 70;
the first feeding mechanism 9 is used for inserting the arc extinguishing plates 40 into the positioning blocks 8 one by one;
the driving mechanism 10 is used for driving the rotating disc 7 to rotate and driving the first feeding mechanism 9;
a second feeding mechanism 11 for mounting arc plates 41 to both sides of the arc extinguishing plates 40;
a riveting cylinder 12;
the frame 6 is sequentially provided with a sheet loading station 60, an arc-isolating plate loading station 61, a riveting station 62 and a blanking station 63 around the rotating disc 7, the first feeding mechanism 9 is arranged at the sheet loading station 60, the second feeding mechanism 11 is arranged at the arc-isolating plate loading station 61, and the riveting cylinder 12 is arranged at the riveting station 62.
Through adopting above-mentioned technical scheme, actuating mechanism 10 drives rotor disk 7 and locating piece 8 rotatory, when locating piece 8 rotates to last piece station 60, drive first feeding mechanism 9 through actuating mechanism 10 and insert arc extinguishing piece 40 on locating piece 8 one by one, every insert a slice arc extinguishing piece 40 just drive the locating piece 8 rotatory certain angle on the rotor disk 7, thereby insert arc extinguishing piece 40 equidistance on locating piece 8, after inserting full a certain amount of arc extinguishing piece 40 on locating piece 8, rotate to dress arc-extinguishing plate station 61, through second feeding mechanism 11 with arc-extinguishing plate 41 joint so the upper and lower both sides of arc extinguishing piece 40, link together arc extinguishing piece 40 on the locating piece 8, then rotate to riveting station 62 and rivet arc extinguishing piece 40 through riveting cylinder 12 and make arc extinguishing plate 41 and arc extinguishing piece 40 stable link together, finally rotate to unloading station 63 and release arc extinguishing piece 40 and arc extinguishing plate 41 that the riveting is accomplished in 8 and collect, the whole course is automatic, the operation of need not to carry out, effectively improve work efficiency, and the same angle between the adjacent arc extinguishing piece 40 is kept, the acceptable system is guaranteed, and the acceptable spacing between the system is guaranteed.
In the embodiment of the present invention, the first feeding mechanism 9 includes:
the baffle 90 is vertically arranged on the frame 6, and a sliding block mechanism is arranged on the baffle 90;
the feeding rod 91, the upper end of the feeding rod 91 is connected with an external feeding mechanism, the feeding rod 91 is obliquely arranged, a plurality of arc extinguishing plates 40 are connected to the feeding rod 91 in a sliding manner, and the openings of the arc extinguishing plates 40 on the feeding rod 91 are arranged towards the rotating disc 7;
the lower end of the connecting rod 92 is connected with the driving mechanism 10 and can reciprocate through the driving mechanism 10, the connecting rod 92 is connected with a push plate 94 through an adjusting mechanism 93, the push plate 94 is arranged in a long strip shape, and the connecting rod 92 is connected with a sliding block mechanism on the baffle 90;
the gap for sliding the arc extinguishing piece 40 is arranged between the lower end of the feeding rod 91 and the baffle 90, the arc extinguishing piece 40 between the lower end of the feeding rod 91 and the baffle 90 is located on the moving path of the push plate 94, and the baffle 90 is provided with a slot 900 for the adjusting mechanism 93 and the push plate 94 to slide through.
Through adopting above-mentioned technical scheme, the upper end of feed rod 91 is constantly sent into arc extinguishing piece 40 through external feed mechanism, a plurality of arc extinguishing pieces 40 slide downwards from feed rod 91, the arc extinguishing piece 40 that is lowermost breaks away from feed rod 91 and is blockked by baffle 90 and thereby stand in the clearance between baffle 90 and the feed rod 91, connecting rod 92 drives push pedal 94 and promotes this arc extinguishing piece 40 and remove and insert on locating piece 8, the in-process that push pedal 94 promotes is forward keeps the state of sliding contact with next arc extinguishing piece 40 all the time, thereby block next arc extinguishing piece 40 to slide down and get into this clearance, avoid taking place the condition that push pedal 94 can't remove the reset backward, break away from with next arc extinguishing piece 40 that blocks when push pedal 94 moves back to initial position, thereby next arc extinguishing piece 40 will automatic landing to be in the clearance, prepare to be released by push pedal 94 and send into on locating piece 8, can effectually send out arc extinguishing piece 40 one by one and insert on the locating piece 8 according to the regulation, the production efficiency of arc extinguishing system has been effectually improved.
In an embodiment of the present invention, the driving mechanism 10 includes:
a first motor 100, the first motor 100 being fixed to the frame 6;
the sliding box 101 is provided with racks 1010 on two sides of the inner wall of the sliding box 101, a gear 1011 which is independently meshed with the racks 1010 on one side is arranged in the sliding box 101, the gear 1011 is positioned between the two racks 1010, teeth on the outer wall of the gear 1011 occupy no more than half of the periphery of the gear 1011, and an opening 1012 for the output shaft of the first motor 100 to pass through is formed in the lower side of the sliding box 101;
a second motor 102, the second motor 102 being fixed to the frame 6;
a one-way gear 103, the one-way gear 103 being fixed on the outer wall of the central shaft 70;
an extension rod 104, wherein a first sliding clamping block 105 is connected to one end of the extension rod 104 in a sliding and telescopic manner, the sliding direction of the first sliding clamping block 105 is perpendicular to the moving direction of the sliding box 101, the top end of the first sliding clamping block 105 and one side facing the unidirectional gear 103 are provided with an inclined plane matched with the unidirectional gear 103, and a first spring 1050 is arranged between the bottom end of the first sliding clamping block 105 and the extension rod 104;
the lower end of the connecting rod 92 is fixed on the sliding box 101, the gear 1011 is connected with an output shaft of the first motor 100, the sliding box 101 is slidably connected on the frame 6 through a sliding block mechanism, the lower end of the central shaft 70 is connected with the second motor 102 through a transmission device, one end of the extension rod 104, which is far away from the first sliding clamping block 105, is fixedly connected with the sliding box 101, a moving path of the first sliding clamping block 105 along with the sliding box 101 moves is tangential to one side of the unidirectional gear 103, and the first sliding clamping block 105 and the unidirectional gear 103 are at the same horizontal height.
By adopting the technical scheme, the first motor 100 drives the gear 1011 to rotate, the gear 1011 is only meshed with the rack 1010 on one side, when the gear 1011 is meshed with the rack 1010 on the right side, the sliding box 101 is driven to move towards the direction which is close to the unidirectional gear 103, at the moment, the sliding box 101 drives the push plate 94 to push out the arc extinguishing piece 40 through the connecting rod 92, meanwhile, the first sliding clamping block 105 on the extension rod 104 is close to the unidirectional gear 103, the inclined surface on the first sliding clamping block 105 is matched with the inclined surface on the unidirectional gear 103, the first sliding clamping block 105 is pushed into the extension rod 104 when being moved forwards to be in contact with the unidirectional gear 103, so that the unidirectional gear 103 is not driven to rotate, when the gear 1011 is rotated to be separated from the rack 1010 on the right side and meshed with the rack 1010 on the left side, the sliding box 101 is driven to move towards the direction which is far away from the unidirectional gear 103, at the moment, the sliding box 101 drives the push plate 94 to reset through the connecting rod 92 to prepare for pushing out the next arc extinguishing piece 40, and at the same time, the first sliding clamping block 105 is moved backwards, the unidirectional gear 103 is rotated anticlockwise, so that the central shaft 70 is rotated by a certain angle; the sliding box 101 is driven by the first motor 100 to reciprocate, so that the arc extinguishing plates 40 are pushed out and inserted onto the positioning blocks 8 when the sliding box 101 moves forwards, the unidirectional gears 103 are driven to rotate through the cooperation of the first sliding clamping blocks 105 and the unidirectional gears 103 when the sliding box 101 moves backwards, the rotating disc 7 rotates by a certain angle, the position, to be inserted, of the upper arc extinguishing plates 40 and the lower arc extinguishing plates 40 of the positioning blocks 8 are rotated to the position angle matched with the first feeding mechanism 9, the degree of flexibility of cooperation between the whole is high, and the angle of each time the first sliding clamping blocks 105 drive the unidirectional gears 103 to rotate is the same as the angle between two adjacent arc extinguishing plates 40 in the arc extinguishing system.
In an embodiment of the present invention, the transmission device includes:
a housing 107, wherein the housing 107 is hollow, and unidirectional teeth 1070 are circumferentially arranged on the inner wall of the housing 107;
the first through hole 108 is transversely formed at the lower end of the central shaft 70, and the axial lead of the first through hole 108 is perpendicular to the axial lead of the central shaft 70;
the second sliding clamping blocks 109 are at least provided with two second sliding clamping blocks 109, the axes of the second sliding clamping blocks 109 are coincident, the second sliding clamping blocks 109 are all connected in the first through hole 108 in a sliding mode, a second spring 1090 is arranged between the two second sliding clamping blocks 109, and one ends, away from each other, of the two second sliding clamping blocks 109 are provided with inclined planes matched with the unidirectional teeth 1070;
the housing 107 is connected to the output shaft of the second motor 102, the lower end of the central shaft 70 extends into the housing 107 to be rotationally connected, and the unidirectional gear 103 has the same tooth pattern direction as the unidirectional teeth 1070.
By adopting the technical scheme, when the positioning block 8 is inserted into the arc extinguishing piece 40 on the piece loading station 60, the one-way gear 103 is driven to rotate anticlockwise through the first sliding clamping block 105, and when the positioning block 8 moves between different stations, the shell 107 is driven to rotate anticlockwise through the second motor 102; when the first sliding clamping block 105 drives the unidirectional gear 103 to rotate anticlockwise, the second sliding clamping block 109 also rotates anticlockwise in the housing 107, and through the matching of the inclined planes between the first sliding clamping block 105 and the second sliding clamping block 109, the unidirectional teeth 1070 can not block the anticlockwise rotation of the second sliding clamping block 109, so that the first sliding clamping block 105 does not affect the housing 107 and the second motor 102 when driving the unidirectional gear 103 to rotate anticlockwise; when the second motor 102 operates, the housing 107 is driven to rotate anticlockwise, so that the unidirectional teeth 1070 in the housing 107 are matched with the second sliding clamping blocks 109 on the central shaft 70, and the second sliding clamping blocks 109 and the central shaft 70 are driven to rotate anticlockwise, so that the positioning block 8 can move between different stations.
In the embodiment of the invention, an elastic positioning spacer 80 is arranged on one side of the positioning block 8 far away from the rotating disc 7, a plurality of slots 800 for inserting the inner side of the bottom 400 of the arc extinguishing piece 40 are equidistantly arranged on the elastic positioning spacer 80, chamfers are arranged at the notch of the slots 800, and the elastic positioning spacer 80 is made of elastic rubber.
Through adopting above-mentioned technical scheme, when arc extinguishing piece 40 inserts on locating piece 8, the bottom of arc extinguishing piece 40 inserts in slot 800 and is pressed from both sides tightly to effectual stability that has improved arc extinguishing piece 40 on locating piece 8, the chamfer can make the inserting of locating piece 8 more light, convenient, and elastic rubber material's elasticity location spacer 80 can make the clamp of arc extinguishing piece 40 more stable, can also make locating piece 8 after the riveting is accomplished take out more convenient, light.
In an embodiment of the present invention, the adjusting mechanism 93 includes:
a base 930;
the outer barrel 931, one end of the outer barrel 931 far away from the push plate 94 is provided with a first blind hole 931, the bottom of the first blind hole 931 is provided with a square hole 931 in a penetrating mode, the outer wall and the inner wall of the outer barrel 931 are both provided with threads, and the outer wall of one end of the outer barrel 931 far away from the push plate 94 is provided with a polygonal straight rod;
The operating rod 932 is in threaded connection with the inner wall of the outer barrel 931, a second blind hole 9320 is formed in one end of the operating rod 932 facing the push plate 94, threads are formed in the inner wall of the operating rod 932, and a handle block 9321 is arranged at one end of the operating rod 932 away from the second blind hole 9320;
a telescopic rod 933, wherein the telescopic rod 933 comprises a threaded section 9330 and a square rod section 9331, the threaded section 9330 is in threaded connection with the inner wall of the operating rod 932, and the square rod section 9331 is in sliding connection in the square hole 931 and extends out of the outer cylinder 931 to be in rotational connection with the push plate 94;
a lock nut 934, the lock nut 934 being screwed on the outer wall of the outer cylinder 931 and abutting against one side of the base 930;
wherein, the outer wall of the outer cylinder 931 is in threaded connection with the base 930, the screw pitch on the outer wall of the operating lever 932 is larger than the screw pitch on the inner wall, and the screw pitch on the outer wall of the outer cylinder 931 is larger than the screw pitch on the inner wall.
Through adopting the technical scheme, the distance between the front end of the push plate 94 and the connecting rod 92 can be effectively adjusted through the adjusting mechanism 93, so that the depth of the push plate 94 after advancing is adjusted, the push plate 94 is adapted to the production of a plurality of arc extinguishing systems with different specifications, the adjusting mechanism 93 has two modes of coarse adjustment and fine adjustment, the coarse adjustment drives the push plate 94 to move by rotating the outer cylinder 931, and the moving distance is larger; the fine adjustment is that by rotating the operating rod 932, the operating rod 932 rotates once, the moving distance of the telescopic rod 933 is the pitch difference value between the external thread and the internal thread of the operating rod 932, when the pitch difference value between the external thread and the internal thread of the operating rod 932 is smaller, the moving distance of the telescopic rod 933 is very small when the operating rod 932 is rotated each time, and the telescopic precision adjustment of the telescopic rod 933 can be realized, so that the distance adjustment between the front end of the push plate 94 and the connecting rod 92 is more precise and convenient.
In the embodiment of the present invention, the second feeding mechanism 11 includes:
the feeding plate 110 is provided with a channel for sliding and conveying the arc-shaped plate 41, one end of the feeding plate 110 is connected with an external feeding mechanism, one side of the other end of the feeding plate 110 is provided with a blanking hole 1100 for the arc-shaped plate 41 to pass through, and one side of the feeding plate 110 far away from the blanking hole 1100 is provided with an opening 1101;
a push-out cylinder 111, wherein a push rod 1110 is arranged on an output shaft of the push-out cylinder 111, and the push-out cylinder 111 is fixed on the frame 6;
when the arc-extinguishing plate 40 on the positioning block 8 rotates to the arc-extinguishing plate mounting station 61 along with the rotating disc 7, the blanking holes 1100 are correspondingly formed in the upper side and the lower side of the arc-extinguishing plate 40, the push-out cylinder 111 is arranged on one side close to the opening 1101 of the feeding plate 110, and the push-out cylinder 111 can drive the push rod 1110 to pass through the opening 1101 and push the arc-extinguishing plate 41 to pass through the blanking holes 1100 to be inserted on one side of the arc-extinguishing plate 40.
Through adopting above-mentioned technical scheme, the arc-stop plate 41 moves to blanking hole 1100 department and enters into blanking hole 1100 through the feeding plate 110 through external feed mechanism, promotes arc-stop plate 41 through blanking hole 1100 to the arc-extinguishing plate 40 side removal on the locating piece 8 through ejecting cylinder 111, makes arc-stop plate 41 and arc-extinguishing plate 40 pegging graft, installs arc-stop plate 41 on the one side of all arc-extinguishing plates 40 on the locating piece 8, effectually improved production efficiency.
In the embodiment of the invention, a blocking strip 1102 is protruded from an inner wall of one end of the blanking hole 1100 far away from the push-out cylinder 111, and the blocking strip 1102 is flexibly arranged.
Through adopting above-mentioned technical scheme, block through blocking strip 1102 when the arc barrier 41 enters into the unloading hole 1100, thereby avoid arc barrier 41 directly to pass unloading hole 1100 and drop and produce the dislocation, thereby lead to unable being connected with arc extinguishing piece 40, when the telescopic shaft of release cylinder 111 promotes arc barrier 41, arc barrier 41 will extrude blocking strip 1102, make blocking strip 1102 take place deformation, thereby arc barrier 41 can pass unloading hole 1100 and install on arc extinguishing piece 40, blocking strip 1102 can make arc barrier 41 pass unloading hole 1100 and install on one side of arc extinguishing piece 40 when receiving the effort of release cylinder 111 stable, make the installation of arc barrier 41 more accurate, stable.
In the embodiment of the present invention, at least two riveting cylinders 12 are provided, a riveting plate 120 is provided on an output shaft of each riveting cylinder 12, when the arc extinguishing plate 40 and the arc barrier 41 on the positioning block 8 rotate to the riveting station 62 along with the rotating disc 7, the riveting plates 120 are respectively located on the upper and lower sides of the arc barrier 41, and a notch 64 through which the riveting plate 120 below the positioning block 8 passes is provided on the frame 6.
Through adopting above-mentioned technical scheme, when locating piece 8 moved to riveting station 62, riveting cylinder 12 drove riveting board 120 and rivet the both sides of arc extinguishing piece 40, makes arc barrier 41 fix on arc extinguishing piece 40, and locating piece 8 supports the inboard of arc extinguishing piece 40 when riveting to prevent that arc extinguishing piece 40 from taking place deformation.
In the embodiment of the present invention, the positioning block 8 includes:
the block 81, the upper and lower sides of the block 81 and one side far away from the rotating disc 7 are provided with shapes corresponding to U-shaped grooves of the arc extinguishing plates 40, one side of the block 81 far away from the rotating disc 7 is provided with a containing groove 810, and the block 81 is arranged on the rotating disc 7;
the sealing cover 82 is detachably arranged at the notch of the accommodating groove 810, and a plurality of second through holes 820 are formed in the sealing cover 82;
the top plate 83 is arranged in a U shape, the top plate 83 is slidably connected in the accommodating groove 810, one end of two sides of the U shape of the top plate 83 extends out and slides through the second through hole 820, the bottom of the top plate 83 is connected with a supporting rod 830 extending out into the rotating disc 7 from the bottom of the accommodating groove 810, and one end of the supporting rod 830 far away from the top plate 83 is provided with a roller 831;
a third spring 84, the third spring 84 being disposed between the "U" shaped interior of the top plate 83 and the cover 82;
Wherein, the elastic positioning spacer 80 is arranged outside the cover 82, and two sides of the U-shaped top plate 83 are respectively positioned above and below the elastic positioning spacer 80.
Through adopting above-mentioned technical scheme, accessible promotes bracing piece 830 and drives roof 83 and remove to make roof 83 pass second through-hole 820 stretch out and promote the explosion piece 40 after the riveting is accomplished on the locating piece 8, make explosion piece 40 break away from locating piece 8, collect, third spring 84 can make roof 83 quick reset, and closing cap 82 can effectually restrict roof 83 and third spring 84 in holding tank 810.
In the embodiment of the invention, the inside of the rotating disc 7 is hollow and the lower side is provided with an opening, the upper end of the central shaft 70 is fixedly connected with the upper side of the inside of the rotating disc 7, the inside of the rotating disc 7 is provided with a cam plate 13 which is fixed on a rack 6 and is annularly arranged, the cam plate 13 is sleeved outside the central shaft 70 and is provided with a gap with the central shaft 70, the cam plate 13 comprises a semicircular part 130 and an elliptic part 131, the centers of circles of the semicircular part 130 and the elliptic part 131 are coincident with the axis center of the central shaft 70, the minor axis 2b of the elliptic part 131 is the same as the diameter of the semicircular part 130, one half of the major axis 2a of the elliptic part 131 is larger than the radius of the semicircular part 130, the top end of the elliptic part 131 is arranged towards the blanking station 63, the roller 831 is in rolling connection with the outer wall of the cam plate 13, the rack 6 is provided with a blanking slide plate 630 for receiving the arc extinguishing piece 40 and the arc barrier 41 after riveting is completed at the blanking station 63, the top plate 83 is positioned in the accommodating groove when the roller 831 contacts with the outer wall of the semicircular part 130, and the top plate 83 is in contact with the outer wall 810, and the top plate 83 is in contact with the arc extinguishing piece 83.
By adopting the above technical scheme, when the positioning block 8 rotates from the riveting station 62 to the blanking station 63, the roller 831 rolls from the outer wall of the semicircular portion 130 to the outer wall of the elliptical portion 131 and gradually approaches to the top end of the elliptical portion 131, at this time, the support rod 830 slides to one side of the cover 82 under the action of the cam plate 13 and presses the third spring 84, so that the top plate 83 gradually stretches out through the second through hole 820 to push the arc extinguishing piece 40 on the positioning block 8, the arc extinguishing piece 40 after riveting is pushed up and down by the positioning block 8, when the positioning block 8 rotates to the blanking station 63, the arc extinguishing piece 40 just falls onto the blanking slide plate 630 to slide out and collect, and when the positioning block 8 rotates from the blanking station 63 to the upper piece station 60, the roller 831 rolls from the top end of the elliptical portion 131 to the outer wall of the semicircular portion 130, at this time, the support rod 830 gradually loses support and under the action of the third spring 84, the top plate 83 retracts into the accommodating groove 810, and the next splicing of the arc extinguishing piece 40 is facilitated; the blanking can not be carried out by an additional power element, when the positioning block 8 rotates to the blanking station 63, the arc extinguishing plates 40 after riveting on the positioning block 8 can be automatically pushed out through the cooperation of the supporting rods 830 and the cam plates 13, the action is very smooth, and the production efficiency is effectively improved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
1. The DC1500V arc extinguishing system comprises a shell (1), a moving contact mechanism (2) arranged in the shell (1) and rotating, and two matched fixed contacts (3), and is characterized by further comprising,
the arc extinguishing plates (40) are arranged in a plurality of U-shaped mode, the arc extinguishing plates (40) are stacked and integrally formed into a fan-shaped ring, and gaps are formed between adjacent arc extinguishing plates (40) at equal intervals;
the arc-shaped isolation plates (41), wherein the arc-shaped isolation plates (41) are in a fan ring shape and are provided with two;
the permanent magnet (42), the permanent magnet (42) is set as a fan ring, the inner cambered surface of the permanent magnet (42) is set as an N pole, and the outer cambered surface is set as an S pole;
the arc striking angle (30), the arc striking angle (30) is arranged on the fixed contact (3);
the gas collection cavity (14), the gas collection cavity (14) is arranged in the shell (1);
the arc extinguishing plates (40) are arranged between the two arc extinguishing plates (41), the permanent magnets (42) are arranged in U-shaped grooves of the arc extinguishing plates (40), N poles of the permanent magnets (42) are arranged towards the opening direction of the arc extinguishing plates (40), circle centers of the arc extinguishing plates (41), the permanent magnets (42) and the arc extinguishing plates (40) which are stacked to form a fan ring are all on the same straight line, the arc striking angles (30) extend into the arc extinguishing plates (40), and the shell (1) is provided with exhaust holes (5) which are communicated with the air collecting cavity (14) and the outside;
Further comprises:
the permanent magnet device comprises an insulating frame (43), wherein a groove (430) for installing a permanent magnet (42) is formed in the insulating frame (43), and the insulating frame (43) is in a fan ring shape;
the arc extinguishing device comprises an insulating frame (43), a plurality of arc extinguishing plates (40) and an arc striking angle (30), wherein the outer cambered surface of the insulating frame (43) corresponds to the inner wall formed by the arc extinguishing plates (40), an arc extinguishing space (44) is formed by the inner cambered surface of the insulating frame (43) and the two sides of an opening of the arc extinguishing plates (40), the arc striking angle (30) extends into the arc extinguishing space (44), and the insulating frame (43) is arranged in a U-shaped groove of the arc extinguishing plates (40);
the arc extinguishing sheet (40) includes:
a bottom (400);
the side edge part (401), the side edge part (401) is provided with two symmetrical parts which are arranged on the same side of the bottom part (400), the side edge part (401) comprises an inlet part (4010) and an outlet part (4011), a first inclined surface (4012) is arranged on the inner side of the inlet part (4010), one end with larger width of the inlet part (4010) is connected with the outlet part (4011), and a second inclined surface (4013) is arranged on the outer side of the outlet part (4011) and far away from one end of the inlet part (4010);
one end of the leading-out part (4011) far away from the leading-in part (4010) is connected with the bottom part (400), two sides of the insulating frame (43) are clamped between the leading-out parts (4011) of the two side edge parts (401), and the extrados of the insulating frame (43) is in abutting connection with the inner side of the bottom part (400).
2. A DC1500V arc extinguishing system according to claim 1, characterized in that the spacing (d) between the ends of the introduction sections (4010) adjacent one another up and down, which ends have smaller widths, is set to 1.5mm-2.5mm.
3. A DC1500V arc extinguishing system according to claim 1, characterized in that the angle (a) between the uppermost arc extinguishing sheet (40) and the lowermost arc extinguishing sheet (40) is set to 25 ° -45 °.
4. The DC1500V arc extinguishing system according to claim 1, characterized in that the ratio of the length (L1) of the inlet section (4010) to the length (L2) of the outlet section (4011) is 2-2.5:1.
5. a DC1500V arc extinguishing system according to claim 1, characterized in that the angle (β) of the first slope (4012) of the introduction portion (4010) is set at 70 ° -80 °.
6. The DC1500V arc extinguishing system according to claim 1, wherein the upper and lower end surfaces of the arc shield plates (41) protrude from the uppermost arc extinguishing sheet (40) and the lowermost arc extinguishing sheet (40), respectively, and the upper and lower end surfaces of the permanent magnets (42) protrude from the uppermost arc extinguishing sheet (40) and the lowermost arc extinguishing sheet (40), respectively.
7. A production process for producing the arc extinguishing system according to any one of claims 1 to 6, characterized by comprising:
S1: the arc extinguishing sheet (40) and the arc barrier (41) are arranged in the assembling riveting device;
s2: the riveting device is assembled to fix the arc extinguishing pieces (40) and the arc-isolating plates (41) in a riveting way, and the arc extinguishing pieces (40) and the arc-isolating plates (41) after the riveting is completed are taken out;
s3: loading the permanent magnet (42) into an insulating frame (43);
s4: the insulating frame (43) is arranged in the U-shaped groove of the arc extinguishing piece (40).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311719098.1A CN117831976B (en) | 2023-05-26 | 2023-05-26 | Production process of DC1500V arc extinguishing system |
| CN202310615578.7A CN116895489B (en) | 2023-05-26 | 2023-05-26 | DC1500V arc extinguishing system and production process for producing same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310615578.7A CN116895489B (en) | 2023-05-26 | 2023-05-26 | DC1500V arc extinguishing system and production process for producing same |
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| CN202311719098.1A Division CN117831976B (en) | 2023-05-26 | 2023-05-26 | Production process of DC1500V arc extinguishing system |
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| CN116895489A CN116895489A (en) | 2023-10-17 |
| CN116895489B true CN116895489B (en) | 2024-01-02 |
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| CN202310615578.7A Active CN116895489B (en) | 2023-05-26 | 2023-05-26 | DC1500V arc extinguishing system and production process for producing same |
| CN202311719098.1A Active CN117831976B (en) | 2023-05-26 | 2023-05-26 | Production process of DC1500V arc extinguishing system |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN117831976A (en) | 2024-04-05 |
| CN117831976B (en) | 2024-06-07 |
| CN116895489A (en) | 2023-10-17 |
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Address after: 325600, No. 66 Punan Fifth Road, Leqing Economic Development Zone, Wenzhou City, Zhejiang Province Patentee after: Zhejiang Jinlaile Electric Co.,Ltd. Country or region after: China Address before: 325600 No. 66, Punan fifth road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province Patentee before: ZHEJIANG GRL ELECTRIC CO.,LTD. Country or region before: China |