CN108242362A - A kind of contactor for having the function of to switch phase sequence - Google Patents

A kind of contactor for having the function of to switch phase sequence Download PDF

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Publication number
CN108242362A
CN108242362A CN201810055342.1A CN201810055342A CN108242362A CN 108242362 A CN108242362 A CN 108242362A CN 201810055342 A CN201810055342 A CN 201810055342A CN 108242362 A CN108242362 A CN 108242362A
Authority
CN
China
Prior art keywords
main contacts
copper sheet
phase sequence
armature
contacts copper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810055342.1A
Other languages
Chinese (zh)
Inventor
王勇
周英辉
胡鸿荣
汪伟平
魏小刘
许正辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Golden Hair Science And Technology Enterprise Technology Center Co Ltd
Wuhan Kingfa Sci and Tech Co Ltd
Original Assignee
Wuhan Golden Hair Science And Technology Enterprise Technology Center Co Ltd
Wuhan Kingfa Sci and Tech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan Golden Hair Science And Technology Enterprise Technology Center Co Ltd, Wuhan Kingfa Sci and Tech Co Ltd filed Critical Wuhan Golden Hair Science And Technology Enterprise Technology Center Co Ltd
Priority to CN201810055342.1A priority Critical patent/CN108242362A/en
Publication of CN108242362A publication Critical patent/CN108242362A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00Details of electromagnetic relays
    • H01H50/16Magnetic circuit arrangements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00Details of electromagnetic relays
    • H01H50/54Contact arrangements
    • H01H50/56Contact spring sets
    • H01H50/58Driving arrangements structurally associated therewith; Mounting of driving arrangements on armature
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P23/00Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/24Controlling the direction, e.g. clockwise or counterclockwise

Abstract

A kind of contactor for having the function of to switch phase sequence, electric and power blackout situation is obtained by two iron cores of control, to control the steering of armature, simultaneously, since the phase sequence of wherein three upper main contacts copper sheets of side is A, C, B or B, A, C or C, B, A, for its phase sequence A, B, C relative to three upper main contacts copper sheets of opposite side, it is to exchange any two phase sequence position to be formed, therefore, it can be in same contactor by the way that the positive and negative swing of armature is controlled to realize the function of switching phase sequence, so as to fulfill the rotating of three phase electric machine;Since the rotating of three phase electric machine can be realized by a contactor, can be greatly reduced the occupancy that electric cabinet is controlled three phase electric machine;In addition, the rotating of armature is directly controlled by belt coil iron core, moreover it is possible to play the function as electrical interlocks circuit, avoid addition electrical interlocks circuit, further improve the space availability ratio of the electric cabinet of three phase electric machine control.The contactor construction is simple, at low cost, later maintenance facility.

Description

A kind of contactor for having the function of to switch phase sequence
Technical field
The present invention relates to a kind of contactors for having the function of to switch phase sequence.
Background technology
The rotating of three phase electric machine is all realized by A, B, C three-phase phase-sequence in existing electric loop, at present work The motor positive/reverse rotation circuit of widely used two contactors composition in industry, by accessing two common contacts in electric loop Device so as to fulfill the rotating of motor, however sets two common contact devices in electric loop, occupies very much three phase electric machine control The space of the electric cabinet of system;Meanwhile in order to avoid being interfered with each other when two contactors are run, it need to also additionally increase electricity in electric loop Gas interlocking loop due to increasing electrical interlocks circuit, not only further occupies the sky of the electric cabinet of three phase electric machine control Between, the tedious work of electrical wiring is also accordingly increased, is not easy to the maintenance of three phase electric machine.
Invention content
The present invention is intended to provide contactor a kind of simple in structure and that there is switching phase sequence.
A kind of contactor for having the function of to switch phase sequence of the present invention, including shell, being equipped with inside the housing can The armature of opposite shell rotation, also installs the iron core for being wound with coil, the iron in every side respectively on the side wall of outer shell of armature both sides Three in top upper main contacts copper sheets and three lower main contacts copper sheets being below are both provided between core and armature, Main contacts copper sheets on three that can connect homonymy are additionally provided on armature and contact copper sheet with three the intermediate of lower main contacts copper sheet, The phase sequence of three of middle side upper main contacts copper sheets is A, B, C, the phase sequences of three upper main contacts copper sheets of opposite side for A, C, B or B, A, C or C, B, A, when the iron core in main contacts copper sheet side on three that phase sequence is A, B, C obtains electric, armature turns towards the side It is dynamic, intermediate contact copper sheet is made to be contacted simultaneously with three upper main contacts copper sheets of the side and three lower main contacts copper sheets, by the side Upper main contacts copper sheet is connected with lower main contacts copper sheet, and motor rotates forward at this time;Phase sequence be A, C, B or B, A, C or C, three of B, A When the iron core of upper main contacts copper sheet side obtains electric, armature is rotated towards the side, makes three of intermediate contact copper sheet and the side above to lead Contact copper sheet and three lower main contacts copper sheets contact simultaneously, and the upper main contacts copper sheet of the side is connected with lower main contacts copper sheet, this When motor reversal.
A kind of contactor for having the function of to switch phase sequence of the present invention obtains electric and power-off by two iron cores of control Situation, to control the steering of armature, simultaneously as the phase sequence of wherein three upper main contacts copper sheets of side is A, C, B or B, A, C Or C, B, A, it is by any two phase sequence position for phase sequence A, B, C of three upper main contacts copper sheets of opposite side It exchanges to be formed, therefore, can realize the function of switching phase sequence by controlling the rotating of armature in same contactor, so as to Realize the rotating of three phase electric machine;Since the rotating of three phase electric machine can be realized by a contactor, can substantially drop The low occupancy for controlling three phase electric machine electric cabinet space;In addition, directly controlling the rotating of armature by belt coil iron core, not only may be used Make contactor operating accuracy higher, moreover it is possible to play the function as electrical interlocks circuit, avoid addition electrical interlocks circuit, more Further improve the space availability ratio of the electric cabinet of three phase electric machine control;In addition, by the way that intermediate contact copper sheet is set to can effectively avoid Upper main contacts copper sheet and lower main contacts copper sheet are in direct contact the impact generated in the process, and then influence the service life of contactor. The contactor construction is simple, at low cost, later maintenance facility.
Description of the drawings
Fig. 1 is assembly structure diagram of the present invention.
Fig. 2 is decomposition diagram of the present invention.
Fig. 3 is the mounting structure schematic diagram of the upper main contacts copper sheet of the present invention.
Fig. 4 is the mounting structure schematic diagram of the lower main contacts copper sheet of the present invention.
Fig. 5 is the attachment structure schematic diagram of intermediate contact copper sheet.
Specific embodiment
A kind of contactor for having the function of to switch phase sequence, as depicted in figs. 1 and 2, including shell 1, is installed inside shell 1 Have can the armature 2 that rotates of opposite shell 1, also installation is wound with the iron core 3 of coil respectively on 1 side wall of shell of 2 both sides of armature, It is led under every main contacts copper sheet 4 on three in top is both provided between the iron core 3 of side and armature 2 and is below three Contact copper sheet 5 is additionally provided with main contacts copper sheet 4 on can connect homonymy three and three lower main contacts copper sheets 5 on armature 2 Centre contact copper sheet 6, the phase sequence of the wherein upper main contacts copper sheet 4 of the three of side are A, B, C, three upper main contacts copper of opposite side The phase sequence of piece 4 is A, C, B or B, A, C or C, B, A, and the iron core 3 of 4 side of main contacts copper sheet obtains on three that phase sequence is A, B, C When electric, armature 2 is rotated towards the side, makes intermediate contact copper sheet 6 and three upper main contacts copper sheets 4 of the side and three lower main contacts Copper sheet 5 contacts simultaneously, and the upper main contacts copper sheet 4 of the side is connected with lower main contacts copper sheet 5, and motor rotates forward at this time;It is in phase sequence A, C, B or B, A, C or C, three of B, A upper 4 sides of main contacts copper sheet iron cores 3 it is electric when, armature 2 is rotated towards the side, is made Centre contact copper sheet 6 contacts simultaneously with three upper main contacts copper sheets 4 of the side and three lower main contacts copper sheets 5, by the upper of the side Main contacts copper sheet 4 is connected with lower main contacts copper sheet 5, at this time motor reversal.The phase sequence of the upper main contacts copper sheet 4 of three of opposite side is excellent A, C, B are selected, connection is more convenient.
As shown in Figure 3 and Figure 4, the upper main contacts copper sheet 4 of the both sides is installed on footstock 7, and footstock 7 is mounted on shell Top surface inside 1, the lower main contacts copper sheet 5 of the both sides are installed on pedestal 8, and pedestal 8 is mounted on the bottom inside shell 1 Face;The footstock 7 and pedestal 8 are stacked to be formed by two concave shape mounting base coincidences, in the coincidence of the mounting base in inside The continuous groove 9 of three consistent with mounting base shape is provided on face, in the wherein one side wall of the mounting base in outside Be provided with two rows through-hole 10, per exhausting hole 10 number it is equal there are three;The upper main contacts copper sheet 4 and lower main contacts copper sheet 5 be in L-shaped;Phase sequence is that a line of three upper main contacts copper sheets 4 of A, B, C is embedded in the mounting base in inside of footstock 7 Wherein one side wall on groove 9 in, another a line is by separate groove 9 bottom surface on the side wall for the mounting base for being in outside One exhausting hole 10 is pierced by, and a line of three lower main contacts copper sheets 5 of homonymy is embedded in its of the mounting base in inside of pedestal 8 In groove 9 in middle one side wall, another a line by be in outside mounting base side wall on 9 bottom surface of close groove a row Through-hole 10 is pierced by;Phase sequence is three places of a lines insertion footstock 7 for going up main contacts copper sheets 4 of A, C, B or B, A, C or C, B, A In in the groove 9 on another side wall of the mounting base of inside, another a line is by leaning on the side wall for the mounting base for being in outside One exhausting hole 10 of nearly 9 bottom surface of groove is pierced by, and a line insertion pedestal 8 of three lower main contacts copper sheets 5 of homonymy is in interior In groove 9 on another side wall of mounting base of side, another a line is by 9 bottom of separate groove on the mounting base side wall on the outside of being in One exhausting hole 10 in face is pierced by;The part of the upper main contacts copper sheet 4 insertion groove 9 of both sides is extended downwardly out other than groove 9, and two The part of the lower main contacts copper sheet 5 insertion groove 9 of side is extended upward other than groove 9.By footstock 7 and pedestal 8 with fixation Main contacts copper sheet 5 under main contacts copper sheet 4 and two groups on two groups, so as to realize effect that phase sequence changes in a contactor.
The armature 2 that is partially toward that the upper main contacts copper sheet 4 of both sides extends other than groove 9 is bent, the lower main contacts of both sides The iron core 3 that is partially toward that copper sheet 5 extends other than groove 9 is bent, and bending part and the lower master of the upper main contacts copper sheet 4 of homonymy touch The bending part of point copper sheet 5 is aligned obliquely.Due to bending part and the lower main contacts copper of the upper main contacts copper sheet 4 of homonymy The bending part of piece 5 is aligned obliquely, therefore forms a plane, convenient for being contacted with the intermediate contact copper sheet 6 on armature 2.
On the bending part of the upper main contacts copper sheet 4 of the both sides and on the bending part of the lower main contacts copper sheet 5 of both sides The first spherical surface 11 of protrusion is both provided with, is respectively provided on the intermediate contact copper sheet 6 of both sides there are two the second spherical surface 12, in centre Copper sheet 6 is contacted in 2 rotation process of armature, centre contacts the upper main contacts copper of second spherical surface 12 and homonymy on copper sheet 6 The first spherical surface 11 on piece 4 contacts, another second spherical surface 12 connects with the first spherical surface 11 on the lower main contacts copper sheet 5 of homonymy It touches, the upper main contacts copper sheet 4 of homonymy is connected with lower main contacts copper sheet 5, so as to fulfill the rotating of three phase electric machine;Meanwhile It contacts copper sheet 6 with intermediate since upper main contacts copper sheet 4 contact with centre copper sheet 6 and lower main contacts copper sheet 5 and is connect by spherical surface It touches, greatly reduces contact area therebetween, the arc-quenching part formed by the spherical surface of protrusion, moreover it is possible to greatly improve and connect The usage safety performance of tentaculum.
The armature 2 is connected to by shaft on shell 1, and the armature is in Y types, and a line of Y types armature 2 extend into bottom In the groove 21 of the mounting base in inside of seat 8, intermediate contact is respectively arranged on the two other adjacent side of Y types armature 2 Copper sheet 6 by setting Y types armature 2, is faster replied convenient for intermediate contact copper sheet 6 thereon in 2 swing process of Y types armature To intermediate equilibria position.
As shown in Figure 2 and Figure 5, it is respectively arranged on two adjacent sides of Y types armature 2 for being provided with intermediate contact copper sheet 6 Three mounting grooves 13 are mounted on spring 14 in the mounting groove 13 of every side, and 14 free end of spring is protruding to other than mounting groove 13, Inserted link 15 is provided in the intermediate one side for contacting copper sheet 6 towards mounting groove 13 of both sides, centre contacts the inserted link 15 on copper sheet 6 It is inserted into the free end of the spring 14 in corresponding mounting groove 13, centre contact copper sheet 6 is mounted on by Y type armature by spring 14 On 2.In contactor action process, spring 14 can play the upper main contacts copper sheet 4 of buffering and lower main contacts copper sheet 5 respectively with centre The effect of impact force when copper sheet 6 contacts is contacted, in addition, in the contactor course of work, if upper main contacts copper sheet 4 or lower master touch Slight deformation occurs for point copper sheet 5, at this point, there may be main contacts copper sheets 4 on part and lower master in 2 action process of Y types armature Contact copper sheet 5 contacts respectively with centre can not completely attach in the contact process of copper sheet 6 there are gap, and copper is contacted by centre Piece 6 ensures to contact gapless, contacts to obtain more consolidation, effectively prevent the upper master caused by external vibration using the deformation of spring 14 Contact copper sheet 4 and lower main contacts copper sheet 5 contact the phenomenon that being disconnected when copper sheet 6 connects with centre respectively, and it is worked to improve contactor Reliability in journey.
The stripe shape through-hole 16 of arcuation is provided on the column end face of Y types armature 2, be provided on the inner wall of shell 1 with The strip bulge 17 of 16 corresponding arcuation of strip through-hole, the arc length of the strip bulge 17 are less than the arc length of strip through-hole 16, The strip bulge 17 is extend into corresponding strip through-hole 16.In 2 swing process of Y types armature, strip bulge 17 can opposite Y Strip through-hole 16 on type armature 2 moves, when the either end of strip bulge 17 is with the corresponding end in contact of strip through-hole 16, Y Type armature 2 stops swinging or towards backswing, by the cooperation of strip through-hole 16 and strip bulge 17, plays limitation Y type ranks Iron 2 is excessive in actuation moment rotation angle, further avoids causing main contacts copper sheet 4 and lower main contacts copper sheet 5 respectively in Between contact copper sheet 6 generate larger impact force.
Two iron cores 3 are mounted on the vertical side inside shell 1 by the iron core mounting base 18 triangular in shape of both sides respectively On wall, two iron core mounting bases 18 are towards being arranged at intervals with multiple slots 19 in the one side of shell 1, inside the shell 1 The plate 20 identical with 19 numbers of slot is provided in upright side walls, plate 20 is inserted into corresponding slot 19, iron core is installed Seat 18 is mounted on shell 1.By the connection structure of slot 19 and plate 20, convenient for the installation and removal of iron core mounting base 18.
The iron core 3 is in E fonts, and coil is wound in a line that iron core 3 is in intermediate.
Directionality instruction involved in the present invention(Top surface, bottom surface etc.), it is only used for explaining that contactor is in such as Fig. 1 shapes The relative position relation between each component during state, when changing such as the particular state, then directionality indicates also correspondingly It changes correspondingly.

Claims (10)

1. a kind of contactor for having the function of to switch phase sequence, it is characterised in that:Including shell(1), in shell(1)Inside is equipped with It can opposite shell(1)The armature of rotation(2), in armature(2)The shell of both sides(1)The iron for being wound with coil is also installed respectively on side wall Core(3), the iron core in every side(3)With armature(2)Between be both provided with main contacts copper sheet on three in top(4)With in Three lower main contacts copper sheets of lower section(5), in armature(2)On be additionally provided with and can connect three of homonymy upper main contacts copper sheets(4) With three lower main contacts copper sheets(5)Intermediate contact copper sheet(6), wherein three of side upper main contacts copper sheets(4)Phase sequence be A, B, C, three upper main contacts copper sheets of opposite side(4)Phase sequence be A, C, B or B, A, C or C, B, A, be A, B, C in phase sequence Three upper main contacts copper sheets(4)The iron core of side(3)When obtaining electric, armature(2)It is rotated towards the side, makes intermediate contact copper sheet(6) With three upper main contacts copper sheets of the side(4)And three lower main contacts copper sheets(5)It contacts simultaneously, by the upper main contacts copper sheet of the side (4)With lower main contacts copper sheet(5)Connection, at this time motor rotating forward;It is A, C, B or B, A, C or C, main on three of B, A touches in phase sequence Point copper sheet(4)The iron core of side(3)When obtaining electric, armature(2)It is rotated towards the side, makes intermediate contact copper sheet(6)With the three of the side A upper main contacts copper sheet(4)And three lower main contacts copper sheets(5)It contacts simultaneously, by the upper main contacts copper sheet of the side(4)With lower master Contact copper sheet(5)It connects, at this time motor reversal.
2. a kind of contactor for having the function of to switch phase sequence according to claim 1, it is characterised in that:The opposite side Three upper main contacts copper sheets(4)Phase sequence be A, C, B.
3. a kind of contactor for having the function of to switch phase sequence according to claim 1, it is characterised in that:The both sides it is upper Main contacts copper sheet(4)It is installed in footstock(7)On, footstock(7)Mounted on shell(1)Internal top surface, the lower master of the both sides Contact copper sheet(5)It is installed in pedestal(8)On, pedestal(8)Mounted on shell(1)Internal bottom surface;The footstock(7)And pedestal (8)It is stacked to be formed by two concave shape mounting base coincidences, is provided with and installs in the coincidence face of the mounting base in inside Three consistent continuous grooves of seat shape(9), two rows are provided in the wherein one side wall of the mounting base in outside Through-hole(10), per exhausting hole(10)Number it is equal there are three;The upper main contacts copper sheet(4)And lower main contacts copper sheet(5)It is in L Font;Phase sequence is three upper main contacts copper sheets of A, B, C(4)A line insertion footstock(7)Mounting base in inside Groove wherein in one side wall(9)Interior, another a line is by the separate groove on the side wall for the mounting base for being in outside(9)Bottom surface An exhausting hole(10)It is pierced by, three lower main contacts copper sheets of homonymy(5)A line insertion pedestal(8)The peace in inside Fill the groove in the wherein one side wall of seat(9)Interior, another a line is by the close groove on the side wall for the mounting base for being in outside (9)One exhausting hole of bottom surface(10)It is pierced by;Phase sequence is three upper main contacts copper sheets of A, C, B or B, A, C or C, B, A(4)One Side insertion footstock(7)The mounting base in inside another side wall on groove(9)Interior, another a line is by being in outside Mounting base side wall on close groove(9)One exhausting hole of bottom surface(10)It is pierced by, three lower main contacts copper sheets of homonymy(5) A line insertion pedestal(8)Another side wall of the mounting base in inside on groove(9)Interior, another a line is by being in outer Separate groove on the mounting base side wall of side(9)One exhausting hole of bottom surface(10)It is pierced by;The upper main contacts copper sheet of both sides(4)It is embedded Groove(9)Part extend downwardly out groove(9)In addition, the lower main contacts copper sheet of both sides(5)Embedded groove(9)Part it is equal Extend upward groove(9)In addition.
4. a kind of contactor for having the function of to switch phase sequence according to claim 3, it is characterised in that:The upper master of both sides touches Point copper sheet(4)Extend groove(9)In addition be partially toward armature(2)Bending, the lower main contacts copper sheet of both sides(5)Extend recessed Slot(9)In addition be partially toward iron core(3)Bending, the upper main contacts copper sheet of homonymy(4)Bending part and lower main contacts copper sheet (5)Bending part be aligned obliquely.
5. a kind of contactor for having the function of to switch phase sequence according to claim 4, it is characterised in that:The both sides it is upper Main contacts copper sheet(4)Bending part on and both sides lower main contacts copper sheet(5)Bending part on be both provided with the of protrusion One spherical surface(11), the intermediate contact copper sheet in both sides(6)On be respectively provided with there are two the second spherical surface(12), copper sheet is contacted in centre (6)With armature(2)In rotation process, centre contact copper sheet(6)On second spherical surface(12)With the upper main contacts copper of homonymy Piece(4)On the first spherical surface(11)Contact, another second spherical surface(12)With the lower main contacts copper sheet of homonymy(5)On the first ball Face(11)Contact, by the upper main contacts copper sheet of homonymy(4)With lower main contacts copper sheet(5)Connection.
6. a kind of contactor for having the function of to switch phase sequence according to claim 1, it is characterised in that:The armature(2) Shell is connected to by shaft(1)On, the armature(2)In Y types, Y type armature(2)A line extend into pedestal(8)Place In the groove of the mounting base of inside(21)It is interior, in Y type armature(2)Two other adjacent side on be respectively arranged with intermediate contact copper sheet (6).
7. a kind of contactor for having the function of to switch phase sequence according to claim 6, it is characterised in that:It is being provided with centre Contact copper sheet(6)Y type armature(2)Two adjacent sides on be respectively arranged with three mounting grooves(13), the mounting groove in every side (13)Inside it is mounted on spring(14), spring(14)Free end is protruding to mounting groove(13)In addition, in the intermediate contact copper of both sides Piece(6)Towards mounting groove(13)One side on be provided with inserted link(15), centre contact copper sheet(6)On inserted link(15)It is inserted into and corresponds to Mounting groove(13)Interior spring(14)Free end in, pass through spring(14)Centre is contacted into copper sheet(6)Mounted on Y type armature (2)On.
8. a kind of contactor for having the function of to switch phase sequence described according to claim 6 or 7, it is characterised in that:In Y type armature (2)Column end face on be provided with the stripe shape through-hole of arcuation(16), in shell(1)Inner wall on be provided with and strip through-hole(16) The strip bulge of corresponding arcuation(17), the strip bulge(17)Arc length be less than strip through-hole(16)Arc length, it is described Strip bulge(17)It extend into corresponding strip through-hole(16)It is interior.
9. a kind of contactor for having the function of to switch phase sequence according to claim 1, it is characterised in that:Two iron cores(3) Pass through the iron core mounting base triangular in shape of both sides respectively(18)Mounted on shell(1)In internal upright side walls, two iron cores Mounting base(18)Towards shell(1)One side on be arranged at intervals with multiple slots(19), in the shell(1)Internal vertical side It is provided on wall and slot(19)The identical plate of number(20), plate(20)It is inserted into corresponding slot(19)It is interior, iron core is pacified Fill seat(18)Mounted on shell(1)On.
10. a kind of contactor for having the function of to switch phase sequence according to claim 1 or 9, it is characterised in that:The iron core (3)In E fonts, coil is wound on iron core(3)In intermediate a line.
CN201810055342.1A 2018-01-19 2018-01-19 A kind of contactor for having the function of to switch phase sequence Pending CN108242362A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810055342.1A CN108242362A (en) 2018-01-19 2018-01-19 A kind of contactor for having the function of to switch phase sequence

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810055342.1A CN108242362A (en) 2018-01-19 2018-01-19 A kind of contactor for having the function of to switch phase sequence

Publications (1)

Publication Number Publication Date
CN108242362A true CN108242362A (en) 2018-07-03

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Application Number Title Priority Date Filing Date
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1221146A (en) * 1958-02-26 1960-05-31 Electric contactor
FR1378765A (en) * 1964-01-08 1964-11-13 Multi-circuit contactor
CN2314468Y (en) * 1997-11-28 1999-04-14 杨松 Directional contactor
CN2342459Y (en) * 1998-06-23 1999-10-06 柳州 AC contactor for controlling motor forword and backword rotation
CN105589348A (en) * 2014-11-06 2016-05-18 洛克威尔自动控制技术股份有限公司 Single-pole, single current path switching system and method
CN208111356U (en) * 2018-01-19 2018-11-16 武汉金发科技有限公司 A kind of contactor with switching phase sequence function

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1221146A (en) * 1958-02-26 1960-05-31 Electric contactor
FR1378765A (en) * 1964-01-08 1964-11-13 Multi-circuit contactor
CN2314468Y (en) * 1997-11-28 1999-04-14 杨松 Directional contactor
CN2342459Y (en) * 1998-06-23 1999-10-06 柳州 AC contactor for controlling motor forword and backword rotation
CN105589348A (en) * 2014-11-06 2016-05-18 洛克威尔自动控制技术股份有限公司 Single-pole, single current path switching system and method
CN208111356U (en) * 2018-01-19 2018-11-16 武汉金发科技有限公司 A kind of contactor with switching phase sequence function

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