CN103021706B - Electric switch device with electric arc isolating sleeve - Google Patents
Electric switch device with electric arc isolating sleeve Download PDFInfo
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- CN103021706B CN103021706B CN201210581353.6A CN201210581353A CN103021706B CN 103021706 B CN103021706 B CN 103021706B CN 201210581353 A CN201210581353 A CN 201210581353A CN 103021706 B CN103021706 B CN 103021706B
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- electric arc
- buccal wall
- electric
- arc
- separation sleeve
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H2009/348—Provisions for recirculation of arcing gasses to improve the arc extinguishing, e.g. move the arc quicker into the arcing chamber
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses an electric switch device with an electric arc isolating sleeve and belongs to the technical field of electrical appliances. The device comprises a shell, an arc extinguishing chamber and a contact arc striking mechanism and is characterized in that the electric arc isolating sleeve is fixedly arranged in the shell and formed by enclosing a first buccal wall, a second buccal wall and a third buccal wall, the first buccal wall and the second buccal wall are arranged in a mutual face-to-face manner and form a containing cavity between the same, an upper arc striking plate, a fixed contact and a movable contact are correspondingly arranged at an opening on the upper portion of the containing cavity, a lower arc striking plate is correspondingly arranged on the lower portion of the containing cavity, the third buccal wall is arranged below the lower arc striking plate, the first buccal wall and the second buccal wall are connected into a whole through the third buccal wall, and a deionization chamber is formed between the outer wall of the electric arc isolating sleeve and the inner wall of the shell. The electric switch device with the electric arc isolating sleeve has the advantages that air-blowing to the moving direction of electric arc is enhanced to form the deionization chamber between the outer wall of the electric arc isolating sleeve and the inner wall of the shell, so that back breakdown of the electric arc is inhibited, and magnetic-blowing to the electric arc can be enhanced through a ferromagnetic part.
Description
Technical field
the invention belongs to technical field of electric appliances, be specifically related to a kind of electric switchgear with electric arc separation sleeve.
Background technology
when electric switchgear open circuit, (different according to the material of contact when if the electric current (voltage) being disconnected circuit exceedes a certain numerical value, its value is also different), electric arc will be produced between the contact of switch, electric arc enters could by extinguish fast in arc control device, if electric arc can not enter arc control device in time, short circuit current continues to increase, to a certain extent, the energy that electric arc discharges will make electric switch be damaged and cause disjunction failure.So the breaking capacity in order to improve electric switch, require to accelerate the speed that electric arc enters arc control device.Electric switchgear generally comprises and produces the contact regions of electric arc, the race arc passage of electric arc to arc control device transition flow warp and the arc control device of segmentation extinguish arcs, in prior art usually by the width running arc passage relative to arc control device arrange very narrow, make to run the pressure of the pressure in arc passage much larger than arc control device, thus make electric arc be subject to air-blowing, enter arc control device fast.On the other hand, due to the raising of electric switchgear breaking capacity, short circuit current or the voltage of disjunction are more and more higher, breaking course breaker in middle discharges more high-temperature metal steam, if be directly emitted on switch external will increase pollution to space outerpace, puncturing between switch busbar can be caused time serious, lead to a disaster.If high-temperature metal steam enters Huo Paohu district of contact district, the risk of electric arc back commutation will be increased.So the electric switchgear of high breaking capacity, needs reinforcement free to disappearing of high-temperature metal gas.Moreover, along with the raising of electric switchgear breaking capacity, only rely on the method for air-blowing, more and more be difficult to the current limliting requirement meeting electric switchgear, prior art also installs ferromagnetic parts in the contact regions that electric arc produces and race arc passage both sides, by increasing the method to electric arc magnetic blow-out, accelerate the movement velocity of electric arc to arc control device further.
existing electric switchgear, name disclosed in Chinese Authorization Notice No. CN1067487C is called " tripper of high rating electrical circuit breaker ", this tripper comprises one pole box, two shells of box are adjacent to each other, limit the inner space that is divided into the multiple cabins be arranged on varying level thus, thus on the direction of arc control device, increase the cross section of arc channel gradually, strengthen arc channel to the air-blowing effect of electric arc.But this device exists following limitation: first, although provide inner venthole and transverse groove, make part high-temperature metal gas can be disappeared free at circuit breaker internal, the upper end of venthole cover by conductor, circulation effect is weakened; For ensureing the intensity of housing, the opening size of transverse groove is less, simultaneously, in limited space, in order to ensure the width of arc control device, can very close to the shell of tripper for the outer wall encapsulating the housing of arc control device, between housing and tripper shell, available free air space is less.Above factor all causes tripper inner limited to the liberation that disappears of high-temperature metal gas, and high-temperature metal gas can be discharged beyond circuit breaker by external venting simultaneously, pollutes space outerpace.Secondly, this device needs the cooperation of two shells could realize described object, complicated structure, takes up room large.Finally, the ferromagnetic parts of this device can only be arranged in space-constrained groove, and reduce ferromagnetic parts to the effective area running arc passage, the magnetic blow-out effect that electric arc is subject to is weakened, can not accelerate the speed that electric arc enters arc control device further.
again for example, name disclosed in Chinese invention patent Authorization Notice No. CN1835151B is called " the electric assembly equipment of the extinguishing arc mechanism of band electric arc precombustion chamber, precombustion chamber plate and current limliting ", it is the convection current utilizing high-temperature metal steam to carry out between arc control device and electric arc precombustion chamber, disappears free at circuit breaker internal to high-temperature metal steam.The shortcoming of this structure is: only have and enter arc control device when electric arc and make the metal vapors in arc control device reach finite concentration, gas pressure intensity is higher than after electric arc precombustion chamber, and above-mentioned convection current could be formed.But, in order to form described convection current, said structure needs to arrange convection current opening in the upstream of electric arc, and the existence of convection current opening weakens the gas pressure intensity of electric arc generation and moving region and contact regions and race arc passage, thus the air-blowing power that reduction electric arc is subject to, affect the speed that electric arc enters arc control device.In addition, the electric switchgear of said structure is arranged on hull outside ferromagnet, away from electric arc, the magnetic blow-out power that electric arc is subject to can be weakened, and, the electric switchgear of said structure will make high-temperature metal steam carry out convection current between arc control device and electric arc precombustion chamber, and precombustion chamber plate opposite shell wall must be made to arrange in hanging, and how to be fixed the position of precombustion chamber plate is a problem that need solve.
again for example, name disclosed in Chinese invention patent publication number CN101436495A is called " arc chute and the circuit breaker with this arc chute ", the place formation that it can not install permanent magnet between buccal wall and case for circuit breaker disappears in Ionization chamber, disappear free to high-temperature metal steam disappearing in Ionization chamber, suppress the back commutation phenomenon of electric arc.But, because the installation of this structure to permanent magnet needs to be realized by coordinating between buccal wall with case for circuit breaker, just cannot the Ionization chamber that disappears be formed, so the ionized space that disappears that this structure can provide is very limited in the place of installing permanent magnet.
to sum up, the reinforcement that prior art provides has certain conflicting to the scheme of electric arc air-blowing and magnetic blow-out and enhancing to the gas free scheme that disappears, and all well can not solve three problems simultaneously.For this reason, the applicant has carried out useful exploration, finds a way to resolve the problem, and technical scheme described below produces under this background.
Summary of the invention
task of the present invention is to provide a kind of electric switchgear with electric arc separation sleeve, and this electric switchgear both can increase the air-blowing to electric arc, accelerates the speed that electric arc enters arc control device; Can provide for high temperature free gas the Ionization chamber that disappears again, suppress the back commutation phenomenon of electric arc; Further, by installing ferromagnetic parts on electric arc separation sleeve, can increase and the speed that electric arc enters arc control device is accelerated further to the method for electric arc magnetic blow-out.
task of the present invention has been come like this, and a kind of electric switchgear with electric arc separation sleeve, comprising: shell, if the arc control device be made up of stacked and multiple arc extinguishing grid pieces be separated from each other each other in the enclosure, if contact arc striking mechanism in the enclosure, described contact arc striking mechanism comprises fixed contact, moving contact, upper run-on tab and lower run-on tab, described fixed contact is fixed on shell, fixed contact is provided with fixed contact, described moving contact is arranged on shell rotationally, moving contact is provided with moving contact, moving contact is corresponding with fixed contact, one end of described upper run-on tab is connected with fixed contact, the other end of upper run-on tab extends to the top of arc control device, described lower run-on tab is fixed on shell, be positioned at the below of moving contact, and extend to the bottom of arc control device, electric arc runway is formed between lower run-on tab and upper run-on tab, be characterized in: in described shell, be also installed with an electric arc separation sleeve, this electric arc separation sleeve is by the first buccal wall, second buccal wall and the 3rd buccal wall enclosure form, wherein: the first described buccal wall and the second described buccal wall are each other in arranging face-to-face, and the containing cavity be formed between the two for inserting for described lower run-on tab, the upper run-on tab described in upper opening place correspondence of described containing cavity, fixed contact and moving contact, run-on tab under the bottom place correspondence of described containing cavity, it is the 3rd buccal wall in the below of lower run-on tab, by the 3rd buccal wall, the first buccal wall and the second buccal wall are connected as one, the Ionization chamber that disappears for communicating with described arc control device is formed between the outer wall and the inwall of described shell of described electric arc separation sleeve.
in a specific embodiment of the present invention, described shell also has additional the first baffle plate, the first described baffle plate is positioned at the end, rear end of arc control device.
in another specific embodiment of the present invention, described shell also has additional second baffle, described second baffle is positioned at the side of described electric arc separation sleeve and corresponds to one end of containing cavity side mouth, the opposite side of described electric arc separation sleeve be positioned at described arc control device other and make the other end of containing cavity side mouth aim at described in arc control device.
in another specific embodiment of the present invention, first buccal wall, second buccal wall of described electric arc separation sleeve are formed with curved end in the upper end of short transverse, correspondingly, described shell has additional and first locate convex surface for what match with curved end.
in another specific embodiment of the present invention, described shell also has additional one for what match with the 3rd described buccal wall and second locate convex surface.
also have in a specific embodiment of the present invention, the first described buccal wall and the second buccal wall are formed with the projection for matching with described lower run-on tab on the inner side surface faced each other.
in an of the present invention and then specific embodiment, the first described buccal wall and the second buccal wall are formed with flange respectively in the outer lateral side faced each other, between described flange and the first buccal wall and between described flange and the second buccal wall, be formed with mounting groove respectively, in described mounting groove, be installed with ferromagnetic parts.
more of the present invention and in a specific embodiment, the first described buccal wall or the second buccal wall are formed with flange on arbitrary side of the outer lateral side faced each other, between described flange and the first buccal wall or between described flange and the second buccal wall, be formed with mounting groove, in described mounting groove, be installed with ferromagnetic parts.
in an again of the present invention and then specific embodiment, described ferromagnetic parts is permanent magnet plate or ferromagnetic plate.
of the present invention again more and in a specific embodiment, the shape of described ferromagnetic parts is magnetosheath that is flat or U-shaped.
the present invention is due to after employing technique scheme, the beneficial effect had: first, by setting up electric arc separation sleeve in the shell of electric switchgear, the containing cavity become by three buccal wall enclosures of electric arc separation sleeve defines the space in Pao Hu road, thus the draught head that can increase between Pao Hu road and arc control device, strengthen the air-blowing to arc motion direction; Secondly, because the installation of electric arc separation sleeve is independent of the two side of the shell of electric switchgear, can makes between the outer wall of electric arc separation sleeve and the inwall of shell, to form the Ionization chamber that disappears communicated with arc control device, thus inhibit the back commutation phenomenon of electric arc; Again, first buccal wall of electric arc separation sleeve and/or the outer lateral side of the second buccal wall are formed with flange, at flange and the first buccal wall and/or form mounting groove between flange and the second buccal wall, ferromagnetic parts and mounting groove are fixedly mounted on electric arc separation sleeve by scarf, because ferromagnetic parts is close to Pao Hu road, therefore, the magnetic blow-out to electric arc can be strengthened by ferromagnetic parts, thus accelerate the movement velocity of electric arc to arc control device further.
Accompanying drawing explanation
fig. 1 is one embodiment of the invention structure chart.
fig. 2 be in Fig. 1 A-A ＇ to profile.
fig. 3 be electric arc separation sleeve of the present invention with arc control device, fixed contact, moving contact, upper run-on tab, lower run-on tab coordinate schematic diagram.
fig. 4 is an embodiment perspective view of electric arc separation sleeve of the present invention.
fig. 5 is the perspective view that electric arc separation sleeve of the present invention coordinates with lower run-on tab.
fig. 6 is another embodiment of the present invention figure.
the schematic diagram that the magnetosheath that Fig. 7 is electric arc separation sleeve of the present invention is U-shaped with the shape of ferromagnetic parts matches.
in figure: 1. shell, 11. second baffles, 12. second location convex surfaces, 13. first location convex surface, 14. first baffle plates, 15. outlet terminals; 2. arc control device, 21. arc extinguishing grid pieces; 3. electric arc runway; 4. run-on tab, 44. times run-on tabs, 45. fixed contacts, 46. moving contacts on contact arc striking mechanism, 41. fixed contacts, 42. moving contacts, 43.; 5. electric arc separation sleeve, 51. first buccal walls, 52. second buccal walls, 53. the 3rd buccal walls, 54. flange, 55. projections, 56. mounting grooves, 57. containing cavities, 58. curved ends; 6. ferromagnetic parts; 7. electric arc, 71. high temperature free gass, 9. to disappear Ionization chamber.
Embodiment
in order to enable the auditor of Patent Office especially the public clearly understand technical spirit of the present invention and beneficial effect, applicant will elaborate below by way of example, but be not all the restriction to the present invention program to the description of embodiment, any conceive according to the present invention done be only pro forma but not substantial equivalent transformation and all should be considered as technical scheme category of the present invention.
refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, there is an electric switchgear for electric arc separation sleeve, comprising: shell 1, the arc control device 2, the contact arc striking mechanism 4 be located in shell 1, operating mechanism, trip gear and the electric arc separation sleeve 5 that are made up of stacked and multiple arc extinguishing grid pieces 21 be separated from each other each other be located in shell 1.Described contact arc striking mechanism 4 comprises fixed contact 45, moving contact 46, upper run-on tab 43 and lower run-on tab 44, described fixed contact 45 is fixed on the shell 1 be made up of insulating material, fixed contact 45 is provided with fixed contact 41, described moving contact 46 is arranged on shell 1 rotationally, moving contact 46 is provided with moving contact 42, moving contact 42 is corresponding with fixed contact 41, each contact is connected to the binding post of switch by conductor and is communicated with, the disengaging movement of moving contact 42 can by rocking handle or trip gear, (said mechanism or device be known technology by operating mechanism, be not illustrated in the drawings) mode handle.Described trip gear can select electromagnetic tripping apparatus and thermal release device, and both all can cause the automatic separation of moving contact 42 when overload and/or short circuit.Described upper run-on tab 43 is corresponding with fixed contact 45, described lower run-on tab 44 is corresponding with moving contact 46, the end winding support of one end of upper run-on tab 43 and the location guide of fixed contact 45, the other end of upper run-on tab 43 extends to the top of arc control device 2, lower run-on tab 44 is fixed on shell 1, be positioned at the below of moving contact 46, one end of lower run-on tab 44 is positioned at the extreme position that moving contact 46 is opened, and be electrically connected with the outlet terminal 15 of electric switchgear, the other end of lower run-on tab 44 extends to the bottom of arc control device 2, electric arc runway 3 is formed between lower run-on tab 44 and upper run-on tab 43.Described electric arc separation sleeve 5 preferably adopts insulating material such as POM, the PA etc. with aerogenesis effect to process, this insulating material can absorb the energy of electric arc while the generation gas that is heated, the gas that insulating material produces can improve the pressure of electric arc runway further, accelerates the movement velocity of electric arc; And the gas that insulating material produces can change the composition of high-temperature vapour, suppress the generation of back commutation phenomenon further.This electric arc separation sleeve 5 is by the first buccal wall 51, second buccal wall 52 and the 3rd buccal wall 53 enclosure form, wherein: the first described buccal wall 51 and the second described buccal wall 52 are each other in arranging face-to-face, and the containing cavity 57 be formed between the two for inserting for described lower run-on tab 44, the upper opening place correspondence of described containing cavity 57 has described upper run-on tab 43, fixed contact 45 and moving contact 46, by upper run-on tab 43, the upper opening of containing cavity 57 covered by fixed contact 45 and moving contact 46, the bottom of described containing cavity 57 is to there being lower run-on tab 44, be the 3rd buccal wall 53 in the below of lower run-on tab 44, by the 3rd buccal wall 53, first buccal wall 51 and the second buccal wall 52 are connected as one, the width of electric arc runway 3 is defined by containing cavity 57, make it much smaller than the width of arc control device 2, thus the gas pressure intensity that can increase between electric arc runway 3 and arc control device 2 is poor.Meanwhile, because the installation of electric arc separation sleeve 5 is independent of the two side of the shell 1 of electric switchgear, between the outer wall and the inwall of shell 1 of described electric arc separation sleeve 5, the Ionization chamber 9 that disappears for communicating with described arc control device 2 is therefore formed with.On the shell 1 of switching device and corresponding to the rearward end of arc control device 2, the first baffle plate 14(is installed as shown in Figure 2), prevent high temperature free gas to electric switchgear External leakage, after electric arc 7 enters arc control device 2 by electric arc runway 3, the high-temperature metal steam discharged makes the air pressure in arc control device 2 increase, high-temperature metal steam is subject to the stop of the first baffle plate 14 and retroeflection, because the gas pressure intensity of Ionization chamber 9 inside that disappears is lower, high temperature free gas 71 is easy to enter this region and is cooled in this region and disappears free.
refer to Fig. 1, Fig. 2 and Fig. 3, the present invention also has additional second baffle 11 on described shell 1, described second baffle 11 is positioned at the side of described electric arc separation sleeve 5 and corresponds to one end of containing cavity 57 side mouth, for this side mouth of shutoff, the opposite side of described electric arc separation sleeve 5 is positioned at described arc control device 2 side and makes the arc control device 2 described in other end aligning of containing cavity 57 side mouth.
refer to Fig. 1, Fig. 3 and Fig. 4, first buccal wall 51, second buccal wall 52 of electric arc separation sleeve 5 of the present invention is formed with curved end 58 in the upper end of short transverse, correspondingly, described shell 1 has additional and first locates convex surface 13 for what match with curved end 58, first location convex surface 13 can carry out shutoff to the opening of the curved end 58 of electric arc separation sleeve 5, thus strengthen the pressure of electric arc runway 3 further, strengthen the air-blowing power be subject in arc motion process, accelerate the movement velocity of electric arc to arc control device.
refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the first buccal wall 51 of described electric arc separation sleeve 5 and the second buccal wall 52 are formed with the projection 55 for matching with described lower run-on tab 44 on the inner side surface faced each other; On described shell 1 extended have match with the 3rd buccal wall 53 second locate convex surface 12, thus electric arc separation sleeve 5 and shell 1 and lower run-on tab 44 are fixed, and make the other end of containing cavity 57 side mouth of electric arc separation sleeve 5 aim at described in arc control device 2.In one embodiment of the invention, first buccal wall 51 of described electric arc separation sleeve 5 and the second buccal wall 52 are formed with flange 54 respectively in the outer lateral side faced each other, between described flange 54 and the first buccal wall 51 and between described flange 54 and the second buccal wall 52, be formed with mounting groove 56 respectively, in described mounting groove 56, be installed with ferromagnetic parts 6.In another embodiment of the present invention, the first described buccal wall 51 or the second buccal wall 52 are formed with flange 54 on arbitrary side of the outer lateral side faced each other, between described flange 54 and the first buccal wall 51 or between described flange 54 and the second buccal wall 52, be formed with mounting groove 56, in described mounting groove 56, be installed with ferromagnetic parts 6.Described ferromagnetic parts 6 is ferromagnetic plate or permanent magnet plate.When electric switchgear is alternating-current switch, ferromagnetic parts 6 selects ferromagnetic plate, as Fig. 2, is arranged in mounting groove 56 symmetrically; When electric switchgear is DC switch, ferromagnetic parts 6 selects permanent magnet plate, as Fig. 2, can be arranged on symmetrically in mounting groove 56, or, as Fig. 6, can asymmetricly be arranged in mounting groove 56.The shape of described ferromagnetic parts 6 is unrestricted, can be magnetosheath etc. that is flat or U-shaped.Ferromagnetic parts 6 shown in Fig. 2 is plate armature, there are two pieces, to be arranged on symmetrically in described mounting groove 56 and with flange 54 in interference fit, thus make two pieces of ferromagnetic parts 6 abut against the both sides of electric arc runway 3, effectively can increase the magnetic blow-out power that electric arc 7 is subject to, accelerate the movement velocity of electric arc 7 further.Ferromagnetic parts 6 shown in Fig. 6 is also plate armature, there are two pieces, asymmetricly be arranged in described mounting groove 56, and the length of one piece of ferromagnetic parts 6 is less than the length of one piece of ferromagnetic parts 6 below above, and one piece of ferromagnetic parts 6 is above installed on the direction away from arc control device 2.Adopt asymmetrical ferromagnetic parts 6 can reduce electric arc 7 and enter the rear ferromagnet of arc control device 2 to its reverse suction.Ferromagnetic parts 6 shown in Fig. 7 adopts the magnetosheath structure of U-shaped, this magnetosheath comprises two and is affixed tactile sidewall and a diapire for coated 3rd buccal wall 53 be connected with described sidewall respectively with the first buccal wall 51 and the second buccal wall 52, make also ferromagnetic material to be installed below described lower run-on tab 44, the magnetic resistance in this region can be reduced like this, the magnetic blow-out power that further increase electric arc 7 is subject to, accelerates the motion of electric arc 7 to arc control device 2.
when moving contact 42 is separated with fixed contact 41, electric arc 7 is formed between contact, is subject to the active force of magnetic blow-out and air-blowing, and electric arc 7 moves to arc control device 2 direction along electric arc runway 3 in containing cavity 57 inside of electric arc separation sleeve 5.In arc control device 2, electric arc 7 is divided into many short arcs by grid 21, and the superposition of electrode drop makes arc voltage rise rapidly, and after arc voltage is greater than supply voltage, short circuit current starts decay, until extinguish.
the present invention only needs in shell 1, set up an electric arc separation sleeve 5, just can the space in limit switch device electric arc runway district, increases the gas pressure intensity in electric arc runway district; Meanwhile, this electric arc separation sleeve 5 can also and the shell 1 of switching device between formed high temperature free gas 71 disappeared the free Ionization chamber 9 that disappears; In addition, on electric arc separation sleeve 5, ferromagnetic parts 6 can be installed easily, the magnetic blow-out to electric arc 7 can be strengthened by ferromagnetic parts 6.Therefore can solve air-blowing, magnetic blow-out well and free three problems that disappear simultaneously.
in sum, technical scheme provided by the invention overcomes the shortcoming in prior art, reaches the object of invention and has fully demonstrated the technique effect of applicant described in technique effect hurdle, and thus can yet be regarded as is a ultimate attainment intention.
Claims (10)
1.
there is an electric switchgear for electric arc separation sleeve, comprising: shell (1), be located at the arc control device (2) be made up of stacked and multiple arc extinguishing grid pieces (21) be separated from each other each other in shell (1), be located at the contact arc striking mechanism (4) in shell (1), described contact arc striking mechanism (4) comprises fixed contact (45), moving contact (46), upper run-on tab (43) and lower run-on tab (44), described fixed contact (45) is fixed on shell (1), fixed contact (45) is provided with fixed contact (41), described moving contact (46) is arranged on shell (1) rotationally, moving contact (46) is provided with moving contact (42), moving contact (42) is corresponding with fixed contact (41), one end of described upper run-on tab (43) is connected with fixed contact (45), the other end of upper run-on tab (43) extends to the top of arc control device (2), described lower run-on tab (44) is fixed on shell (1), be positioned at the below of moving contact (46), and extend to the bottom of arc control device (2), electric arc runway (3) is formed between lower run-on tab (44) and upper run-on tab (43), it is characterized in that: in described shell (1), be also provided with an electric arc separation sleeve (5), this electric arc separation sleeve (5) is by the first buccal wall (51), second buccal wall (52) and the 3rd buccal wall (53) enclosure form, wherein: described the first buccal wall (51) and described the second buccal wall (52) are each other in arranging face-to-face, and the containing cavity (57) be formed between the two for inserting for described lower run-on tab (44), the upper run-on tab (43) described in upper opening place correspondence of described containing cavity (57), fixed contact (45) and moving contact (46), run-on tab (44) under the bottom place correspondence of described containing cavity (57), it is the 3rd buccal wall (53) in the below of lower run-on tab (44), by the 3rd buccal wall (53), the first buccal wall (51) and the second buccal wall (52) are connected as one, the Ionization chamber that disappears (9) for communicating with described arc control device (2) is formed between the outer wall and the inwall of described shell (1) of described electric arc separation sleeve (5), the described Ionization chamber that disappears (9) is positioned at the both sides of described containing cavity (57).
2.
the electric switchgear with electric arc separation sleeve according to claim 1, it is characterized in that described shell (1) also has additional the first baffle plate (14), described the first baffle plate (14) is positioned at the end, rear end of arc control device (2).
3.
the electric switchgear with electric arc separation sleeve according to claim 1, it is characterized in that described shell (1) also has additional second baffle (11), described second baffle (11) is positioned at the side of described electric arc separation sleeve (5) and corresponds to one end of containing cavity (57) side mouth, the opposite side of described electric arc separation sleeve (5) be positioned at described arc control device (2) other and make the other end of containing cavity (57) side mouth aim at described in arc control device (2).
4.
the electric switchgear with electric arc separation sleeve according to claim 1, it is characterized in that the first buccal wall (51), second buccal wall (52) of described electric arc separation sleeve (5) are formed with curved end (58) in the upper end of short transverse, correspondingly, described shell (1) has additional and first locate convex surface (13) for what match with curved end (58).
5.
the electric switchgear with electric arc separation sleeve according to claim 1, is characterized in that described shell (1) also has additional one for what match with the 3rd described buccal wall (53) and second locates convex surface (12).
6.
the electric switchgear with electric arc separation sleeve according to claim 1, is characterized in that described the first buccal wall (51) and the second buccal wall (52) are formed with the projection (55) for matching with described lower run-on tab (44) on the inner side surface faced each other.
7.
the electric switchgear with electric arc separation sleeve according to claim 1, it is characterized in that described the first buccal wall (51) and the second buccal wall (52) are formed with flange (54) respectively in the outer lateral side faced each other, between described flange (54) and the first buccal wall (51) and between described flange (54) and the second buccal wall (52), be formed with mounting groove (56) respectively, in described mounting groove (56), be installed with ferromagnetic parts (6).
8.
the electric switchgear with electric arc separation sleeve according to claim 1, it is characterized in that described the first buccal wall (51) or the second buccal wall (52) are formed with flange (54) on arbitrary side of the outer lateral side faced each other, between described flange (54) and the first buccal wall (51) or between described flange (54) and the second buccal wall (52), be formed with mounting groove (56), in described mounting groove (56), be installed with ferromagnetic parts (6).
9.
the electric switchgear with electric arc separation sleeve according to claim 7 or 8, is characterized in that described ferromagnetic parts (6) is permanent magnet plate or ferromagnetic plate.
10.
the electric switchgear with electric arc separation sleeve according to claim 7 or 8, is characterized in that the shape of described ferromagnetic parts (6) is magnetosheath that is flat or U-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210581353.6A CN103021706B (en) | 2012-12-28 | 2012-12-28 | Electric switch device with electric arc isolating sleeve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210581353.6A CN103021706B (en) | 2012-12-28 | 2012-12-28 | Electric switch device with electric arc isolating sleeve |
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| CN103021706A CN103021706A (en) | 2013-04-03 |
| CN103021706B true CN103021706B (en) | 2015-06-17 |
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| CN103198984B (en) * | 2013-04-10 | 2015-05-27 | 四川中光防雷科技股份有限公司 | High-security surge protection device |
| CN105097333B (en) * | 2014-04-21 | 2018-01-16 | 西门子公司 | The arc extinguishing component and its switching device of switching device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1008725A (en) * | 1961-08-21 | 1965-11-03 | Licentia Gmbh | An electric circuit breaker with single or double interruption |
| EP0138174A3 (en) * | 1983-10-15 | 1986-02-05 | Licentia Patent-Verwaltungs-Gmbh | Quenching device for an automatic circuit breaker |
| US4585912A (en) * | 1983-03-25 | 1986-04-29 | Siemens Aktiengesellschaft | Circuit breaker, particularly line-protective circuit breaker |
| CN1174391A (en) * | 1996-07-05 | 1998-02-25 | 施耐德电器公司 | Breaking device for high rating electrical circuit breaker |
| CN1835151A (en) * | 2005-02-17 | 2006-09-20 | Abb专利有限公司 | Electrical installation device with pre-arc chamber, pre-arc chamber plates and current limiting arc extinguishing device |
| CN101436495A (en) * | 2007-11-13 | 2009-05-20 | 施耐德电器工业公司 | Arc chamber and circuit breaker equipped with such an arc chamber |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312711C (en) * | 2004-02-20 | 2007-04-25 | 浙江正泰电器股份有限公司 | Arc suppressing room with gas deionization device |
-
2012
- 2012-12-28 CN CN201210581353.6A patent/CN103021706B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1008725A (en) * | 1961-08-21 | 1965-11-03 | Licentia Gmbh | An electric circuit breaker with single or double interruption |
| US4585912A (en) * | 1983-03-25 | 1986-04-29 | Siemens Aktiengesellschaft | Circuit breaker, particularly line-protective circuit breaker |
| EP0138174A3 (en) * | 1983-10-15 | 1986-02-05 | Licentia Patent-Verwaltungs-Gmbh | Quenching device for an automatic circuit breaker |
| CN1174391A (en) * | 1996-07-05 | 1998-02-25 | 施耐德电器公司 | Breaking device for high rating electrical circuit breaker |
| CN1835151A (en) * | 2005-02-17 | 2006-09-20 | Abb专利有限公司 | Electrical installation device with pre-arc chamber, pre-arc chamber plates and current limiting arc extinguishing device |
| CN101436495A (en) * | 2007-11-13 | 2009-05-20 | 施耐德电器工业公司 | Arc chamber and circuit breaker equipped with such an arc chamber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103021706A (en) | 2013-04-03 |
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