CN109950071A - Integral type star triangle start construction of switch - Google Patents
Integral type star triangle start construction of switch Download PDFInfo
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- CN109950071A CN109950071A CN201910326217.4A CN201910326217A CN109950071A CN 109950071 A CN109950071 A CN 109950071A CN 201910326217 A CN201910326217 A CN 201910326217A CN 109950071 A CN109950071 A CN 109950071A
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Abstract
The invention discloses integral type star triangle start constructions of switch, it include the Switch main body with control circuit, the Switch main body includes main switch, change-over switch and time-delay mechanism, the input terminal of the main switch is electrically connected with L1 phase, L2 phase and the L3 of external AC three phase mains inlet wire, the output end of the main switch is connected with the input terminal of change-over switch, and the output circuit of the change-over switch is electrically connected with external motor M；The output circuit of the change-over switch includes multiple star triangle change-over switches, start motor M by the main switch, the motor M is controlled by star triangle change-over switch and carries out star triangle start, delta connection is returned again to by star triangle change-over switch after time-delay mechanism is delayed, realizes that motor M is operated normally.Using construction of switch of the present invention, can reach the purpose of reduced-voltage starting, can significantly reduce switching shock electric current, have it is compact-sized, each function element scientific arrangement is reasonable, operate it is more convenient, it is safe and reliable the features such as.
Description
Technical field
The present invention relates to three phase alternating current motor star triangle start technical field, specifically integral type star triangle is opened
Dynamic construction of switch.
Background technique
With the development of society, the use of motor is also more and more common, and the kind of motor in different fields
Class is also more and more, and the main composition of motor is control of the electric energy by circuit system, driving mechanical system work, usual root
According to needing to be designed to reach necessary requirement circuit system and mechanical system.Since three-phase alternating-current motor has structure
Simply, cheap, high reliability, and be widely used, but starting current is larger during startup, so capacity
Big motor must take certain mode to start.Star triangle start is exactly a kind of simply and easily reduced-voltage starting mode, thus
Star triangle start circuit using very extensive.The connection type of three phase alternating current motor includes that star-like connection is connected with triangle,
It is small to power grid impact on startup since the starting current of star-like connection is less than the starting current of triangle connection, and triangle
The torque of connection is greater than star-like connection.Therefore, star triangle start the two combined is the advantageous Starting mode of three-phase motor, i.e.,
Star-like connection is used in startup stage to reduce the impact to power grid, and the operation phase after startup stage is connected using triangle
To generate big torque.But existing conventional star triangle start starts in the handoff procedure run to triangle in star, exists
The phenomenon that very big dash current easily causes circuit breaker trip phenomenon, leads to starting failure.Especially in high-power low tension
In the conventional star triangle start of machine, impact phenomenon is become apparent from.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to background technique, providing one kind can significantly reduce
Switching shock electric current has compact-sized, safe and reliable star triangle start switch, specifically integral type star triangle start
Construction of switch.
In order to solve the above technical problems, the technical scheme adopted by the invention is as follows: integral type star triangle start construction of switch,
It include the Switch main body with control circuit, the Switch main body includes main switch, change-over switch and time-delay mechanism, the master
The input terminal of switch be electrically connected with L1 phase, L2 phase and the L3 of external AC three phase mains inlet wire, the output end of the main switch and
The input terminal of change-over switch is connected, and the output circuit of the change-over switch is electrically connected with external motor M；The change-over switch
Output circuit includes multiple star triangle change-over switches, starts motor M by the main switch, is controlled by star triangle change-over switch
The motor M carries out star triangle start, returns again to delta connection by star triangle change-over switch after time-delay mechanism is delayed, and realizes
Motor M is operated normally.
Further, construction of switch of the present invention, wherein the main switch includes the first bus, the first moving contact group
Part and the first arc-chutes, first bus) electric conductor including there are three, respectively electric conductor A, electric conductor B and electric conductor C,
Electric conductor A, electric conductor B and electric conductor C in first bus are successively juxtaposed on the top of Switch main body；Described
The front end of one bus is respectively equipped with input wires terminal, and is respectively equipped with the first static contact in its back-end, the input terminal
Son can be electrically connected with L1 phase, L2 phase and the L3 phase of external AC three phase mains inlet wire, the three-phase as the Switch main body
Electric power incoming line interface；First moving contact component is corresponding with first bus, and first moving contact component is successively simultaneously
Column are arranged in the side of first static contact, first moving contact component include the first movable contact, the second movable contact and
First is flexible coupling, the outside of first static contact and the first movable contact be equipped with corresponding first arc-chutes, described first
Three main switches are respectively constituted between movable contact and the first static contact；
The change-over switch include the second bus, the second moving contact component, lower discharge bus, third bus, upper discharge bus,
First electric conductor, the first connection bus, the second electric conductor, the second connection bus, the second arc-chutes and third arc-chutes；Described
The quantity of two buses and third bus is corresponding with first bus, includes that there are three electric conductors, respectively electric conductor
A, electric conductor B and electric conductor C；
Three electric conductors in second bus are successively juxtaposed on the bottom of Switch main body, before second bus
End is equipped with the second static contact, and the second movable contact in first moving contact component is quiet with second in second bus respectively
Contact overlap joint, and first other end being flexible coupling in first moving contact component is connected with the second bus respectively；It is described
The rear end of second bus is connect with the bottom end of the third bus, the other end of the third bus and the upper discharge bus phase
Connection, the upper discharge bus are set to the upper ranking at the top of Switch main body and set, and are provided in the front end of the upper discharge bus
First connecting terminal, as one group of discharge wiring, wherein row's connecting terminal is electrically connected with external motor M for the discharge wiring；
Second moving contact component includes mandrel, the first moving contact, the second moving contact, second is flexible coupling and circular arc swing arm,
Wherein first moving contact and the second moving contact are located at the circular arc swing arm two sides using mandrel as the center of circle, the circular arc
Swing arm can swing with the mandrel；
The lower discharge bus is set to the lower ranking of Switch main body bottom and sets, the front end of the lower discharge bus be provided with
Corresponding second connecting terminal of first connecting terminal, as another group of discharge wiring, the discharge wiring and external electrical
Another row's connecting terminal electrical connection in machine M；And it is provided with and second moving contact component in the lower discharge bus rear end
In second be flexible coupling the (solder contacts being connected；
The first connection bus is set to the upper right position of second moving contact component, and the second connection bus is set to
The upper left position of second moving contact component；It is equipped with and second moving contact component in the first connection bus
In the corresponding right contact point of the second moving contact, it is described second connection bus in be equipped with in second moving contact component
The corresponding left contact point of the first moving contact；
Second moving contact component can swing under the action of the circular arc swing arm with the mandrel, drive described the
The left connecting terminal central collision that the first moving contact in two moving contact components is connect in bus with second connects, or drives described second
The right contact point central collision that the second moving contact in moving contact component is connect in bus with first connects, and realizes second moving contact
Three star triangle change-over switches arranged side by side are constituted between component and the first connection bus and the second connection bus；
The upper discharge bus and the first connection bus are connected, and also set between the upper discharge bus and the first connection bus
There is the first electric conductor, during second moving contact component is with mandrel clockwise oscillation, in second moving contact component
The second moving contact when connecting right contact point central collision in bus with first and connecting, pass through first electric conductor and constitute triangle
Wiring；During second moving contact component is with mandrel counter-clockwise swing, it is rocked in second moving contact component
When the left connecting terminal central collision that first moving contact is connect in bus with second connects, pass through second electric conductor and described second
Bus electrical connection is connected, star-star connection is constituted；
Near the outside of the first moving contact in the left connecting terminal and the second moving contact component in the second connection bus
Equipped with the second arc-chutes, and the second moving contact in the right contact point and the second moving contact component in the first connection bus
Outside be nearby provided with third arc-chutes.
Further, construction of switch of the present invention, wherein the lower discharge bus, upper discharge bus, the first connection mother
Line and the second connection bus are made of three electric conductors, and the number of three electric conductors is respectively No. 1 electric conductor, No. 2 electric conductors
With No. 3 electric conductors；Wherein No. 1 electric conductor, No. 2 electric conductors and No. 3 electric conductors in the lower discharge bus are successively set side by side
Lower ranking in Switch main body bottom is set, and No. 1 electric conductor, No. 2 electric conductors and No. 3 electric conductors in the upper discharge bus are successively
It is juxtaposed on the upper ranking at the top of Switch main body to set, three electric conductors in the first connection bus press No. 3 electric conductors, 1
Number electric conductor and No. 2 putting in order for electric conductor are successively juxtaposed on the top of the upper discharge bus, the upper discharge mother
No. 1 electric conductor and No. 2 electric conductors connection corresponding with No. 1 electric conductor in the first connection bus and No. 2 electric conductors respectively in line；
The second dynamic touching during second moving contact component is with mandrel clockwise oscillation, in second moving contact component
Head be rocked to described first connect in bus right contact point central collision connection when, by the first electric conductor respectively with the upper row
No. 3 electric conductors in No. 3 electric conductors in bus and the first connection bus are connected out, constitute delta connection；
The first dynamic touching during second moving contact component is with mandrel counter-clockwise swing, in second moving contact component
Head is rocked to when connect left connecting terminal central collision in bus with described second and connecting, and passes through second electric conductor and described the
Two connection bus electrical connections, constitute star-star connection.
Further, construction of switch of the present invention, wherein first moving contact component further includes having support arm, transmission
Bar, swing arm, shaft and connection bolt, the support arm are connected by one end of connection bolt and drive rod, the shaft setting
In the swing arm, the lower end of the swing arm is connected by the other end of connection bolt and drive rod, and first movable contact is set
It is placed in the upper end of the support arm, and corresponding with the first static contact in first bus, first movable contact and
Main switch is constituted between one static contact；The lower end of support arm described in second movable contact, and in second bus
Two stationary contacts are corresponding, mutually overlap between second movable contact and the second static contact；Described first is flexible coupling positioned at the biography
Below lever, described first one end being flexible coupling is fixed in the support arm, is equipped with arc at the middle part of second bus
Protrusion, described first other end being flexible coupling are connected using welding manner with the arc protrusion in second bus, are passed through
Overlap joint and first between second movable contact and the second static contact, which are flexible coupling to be connected with the arc protrusion, to be connect, real
Good electric connection can be kept between existing dynamic first moving contact component and the second bus.
Further, construction of switch of the present invention, wherein first arc-chutes, the second arc-chutes and third arc-chutes
Be disposed as grid-type arc-chutes, the grid-type arc-chutes have arc-chute, by set arc-chute can reduce main switch and
Change-over switch connects the arcing time of disjunction moment, reduces contact abrasion.
Further, construction of switch of the present invention, wherein the motor M is threephase asynchronous.
Further, construction of switch of the present invention, wherein the time-delay mechanism is mechanical delay device or time relay
The time range of device, the time-delay mechanism delay is 2-10 seconds.
Further, construction of switch of the present invention, wherein the Switch main body further includes having operating mechanism, the operation
Mechanism is electrically connected with main switch and change-over switch respectively, the work shape for controlling motor M starting by the operating mechanism or closing
State.
Using construction of switch of the present invention, compared with prior art, the beneficial effect is that: by using integral type knot
Structure not only can achieve the purpose of reduced-voltage starting, can also eliminate motor the problem of voltage switches instantaneous loss of pressure, can significantly subtract
Small switching shock electric current, has compact-sized, and each function element scientific arrangement is reasonable, operates more convenient, safe and reliable equal spies
Point.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is schematic perspective view one of the invention；
Fig. 2 is schematic perspective view two of the invention；
Fig. 3 is structural schematic diagram of the invention；
Structural schematic diagram when Fig. 4 is the direction the A-A connection status in Fig. 3；
Fig. 5 is the structural schematic diagram of heretofore described first moving contact component；
Fig. 6 is the structural schematic diagram of heretofore described second moving contact component；
Fig. 7 is electrical block diagram of the invention.
It is as shown in the figure: the first bus of 1-, the first static contact of 101-, 102- input wires terminal, the first moving contact component of 2-,
The first movable contact of 201-, the second movable contact of 202-, 203- shaft, 204- first be flexible coupling, 205- swing arm, 206- drive rod,
207- support arm, 208- connection bolt, the second bus of 3-, the second static contact of 301-, 302- arc protrusion, the second moving contact of 4-
Component, 401- mandrel, the first moving contact of 402-, the second moving contact of 403-, 404- second be flexible coupling, the swing arm of 405- circular arc, under 5-
Bus is discharged, 501- solder contacts, the second connecting terminal of 502-, 6- third bus, bus, the first terminals of 701- are discharged on 7-
Son, the first electric conductor of 8-, the connection of 9- first bus, the right contact point 901-, the second electric conductor of 10-, the connection of 11- second bus,
The left contact point 1101-, the first arc-chutes of 12-, the second arc-chutes of 13-, 14- third arc-chutes.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is made with reference to the accompanying drawing
It is described in further detail.
As shown in Figures 1 to 7, integral type star triangle start construction of switch of the present invention includes band control circuit
Switch main body, the Switch main body includes main switch, change-over switch, time-delay mechanism and operating mechanism, the main switch
Input terminal is electrically connected with L1 phase, L2 phase and the L3 of external AC three phase mains inlet wire, and output end and the conversion of the main switch are opened
The input terminal of pass is connected, and the output circuit of the change-over switch is electrically connected with external motor M, wherein the motor M is three-phase
Asynchronous motor；The output circuit of the change-over switch includes multiple star triangle change-over switches, is started by the main switch
Motor M controls the motor M by star triangle change-over switch and carries out star triangle start, turned after time-delay mechanism is delayed by star triangle
It changes switch and returns again to delta connection, realize that motor M is operated normally, the operating mechanism is electric with main switch and change-over switch respectively
Connection, the working condition that motor M starting is controlled by the operating mechanism or is closed；Wherein the time-delay mechanism is mechanical delay
The time range of device or the time relay, the time-delay mechanism delay is 2-10 seconds.
Further, integral type star triangle start construction of switch of the present invention has specifically included the first bus 1, the
One moving contact component 2, the second bus 3, the second moving contact component 4, lower discharge bus 5, third bus 6, upper discharge bus 7,
One electric conductor 8, first connects bus 9, the second electric conductor 10, second connects bus 11, the first arc-chutes 12, the second arc-chutes 13
With third arc-chutes 14；Wherein first bus 1, the second bus 3 and third bus 6 include that there are three electric conductors, respectively
For electric conductor A, electric conductor B and electric conductor C；The lower discharge bus 5, upper discharge bus 7, first connection bus 9 and second connect
It connects bus 11 to be made of three electric conductors, the number of three electric conductors is respectively No. 1 electric conductor, No. 2 electric conductors and No. 3 conductions
Body.Wherein three electric conductors A, B and C in second bus 3 are individually identified as A3, B3 and C3；In the lower discharge bus 5
No. 1 electric conductor, No. 2 electric conductors and No. 3 electric conductors be individually identified as No. 15, No. 25 and No. 35；Three in the third bus 6
A electric conductor A, B and C are individually identified as A6, B6 and C6；Upper No. 1 electric conductor being discharged in bus 7, No. 2 electric conductors and No. 3
Electric conductor is individually identified as No. 17, No. 27 and No. 37；Three electric conductors in the first connection bus 9 press No. 3 electric conductors, 1
Number electric conductor and No. 2 putting in order for electric conductor are successively individually identified as No. 39, No. 19 and No. 29.
Three electric conductors in first bus 1, i.e. electric conductor A, electric conductor B and electric conductor C are successively disposed in parallel in
The top that switch is originally stopped；And it is respectively equipped with input wires terminal 102 in the front end of first bus 1, and distinguish in its back-end
Equipped with the first static contact 101, the input wires terminal 102 can be with L1 phase, L2 phase and the L3 of external AC three phase mains inlet wire
It is mutually electrically connected, the three phase mains inlet interface as the Switch main body.
First moving contact component 2 is corresponding with first bus 1, be respectively set there are three, the described first dynamic touching
Head assembly 2 is successively disposed in parallel in the side of first static contact 101, wherein first moving contact component 2 includes
One movable contact 201, the second movable contact 202 and first are flexible coupling 204, between first movable contact 201 and the first static contact 101
Respectively constitute three main switches；The second movable contact 202 on first moving contact component 2 is quiet with second in the second bus 3 respectively
301 phase of contact overlap joint, and first on the first moving contact component 2 be flexible coupling 204 one end respectively with 3 phase of the second bus weld,
Ensure to keep good between the first moving contact component 2 and the second bus 3 with this to be electrically connected.
Three electric conductors in second bus 3, i.e. electric conductor A, electric conductor B and electric conductor C are successively set side by side according to this
The bottom that this is stopped in switch, second static contact 301 are located at the upper end of the second bus 3.Distinguish the lower end of second bus 3
It is connect with the bottom end of third bus 6；The other end of third bus 6 respectively with upper discharge bus 7.Upper discharge bus 7 is arranged on
Switch is ranked and is set on this bottom for stopping, upper discharge bus 7, in be respectively arranged with the first connecting terminal 701, connect as one group of discharge
Line, connecting terminal of the discharge wiring as the U1/V1/W1 with external threephase asynchronous；The lower discharge bus 5 is set
The lower ranking for being placed in Switch main body bottom is set, and is provided with and first connecting terminal 701 in the front end of the lower discharge bus 5
Corresponding second connecting terminal 502, as another group of discharge wiring, the discharge wiring as with external three-phase asynchronous electric
The connecting terminal of the U2/V2/W2 of machine.
Three electric conductors in second bus 3 are successively juxtaposed on the bottom of Switch main body, female described second
The front end of line 3 is equipped with the second static contact 301, and the second movable contact 202 in first moving contact component 2 is respectively with described second
In bus 3 the second static contact 301 overlap joint, and first in first moving contact component 2 be flexible coupling 204 the other end difference
It is connected with the second bus 3；The rear end of second bus 3 is connect with the bottom end of the third bus 6, the third bus 6
The other end be connected with the upper discharge bus 7, the upper discharge bus 7 is set to the upper ranking at the top of Switch main body and sets,
It is described it is upper discharge bus 7 front end be provided with the first connecting terminal 701, as one group of discharge wiring, the discharge wiring and
Wherein row's connecting terminal is electrically connected external motor M；Second moving contact component 4 includes mandrel 401, the first moving contact
402, the second moving contact 403, second are flexible coupling 404 and circular arc swing arm 405, wherein first moving contact 402 and the second dynamic touching
First 403 are located at 405 two sides of circular arc swing arm with mandrel 401 for the center of circle, and the circular arc swing arm 405 can be with the mandrel
401 swing；The lower ranking that the lower discharge bus 5 is set to Switch main body bottom is set, before the lower discharge bus 5
End is provided with second connecting terminal 502 corresponding with first connecting terminal 701, described as another group of discharge wiring
Discharge wiring is electrically connected with another row's connecting terminal in external motor M；And it is provided with and institute in lower 5 rear end of discharge bus
Second in the second moving contact component 4 is stated to be flexible coupling 404 solder contacts 501 being connected；The first connection bus 9 is set to
The upper right position of second moving contact component 4, the second connection bus 11 are set to the upper of second moving contact component 4
Square leftward position；It is equipped with and 403 phase of the second moving contact in second moving contact component 4 in the first connection bus 9
Corresponding right contact point 901 is equipped with and the first dynamic touching in second moving contact component 4 in the second connection bus 11
First 402 corresponding left contact point 1101；Second moving contact component 4, can be with institute under the action of circular arc swing arm 405
It states mandrel 401 to swing, the first moving contact 402 in second moving contact component 4 is driven to connect in bus 11 with second
1101 central collision of left connecting terminal connection, or the second moving contact 403 in second moving contact component 4 is driven to connect with first
901 central collision of right contact point connection in bus 9 realizes that second moving contact component 4 connect bus 9 and the second connection with first
Three star triangle change-over switches arranged side by side are constituted between bus 11；The upper discharge bus 7 is connected with the first connection bus 9,
Be additionally provided with the first electric conductor 8 between the upper discharge bus 7 and the first connection bus 9, second moving contact component 4 with
During 401 clockwise oscillation of mandrel, the second moving contact 403 in second moving contact component 4 is connect in bus 9 with first
901 central collision of right contact point connection when, pass through first electric conductor 8 constitute delta connection；In the second moving contact group
During part 4 is with 401 counter-clockwise swing of mandrel, the first moving contact 402 and second for being rocked in second moving contact component 4
When connecting 1101 central collision of the left connecting terminal connection in bus 11, bus is connect with described second by second electric conductor 10
11 electrical connections, constitute star-star connection；Left connecting terminal 1101 and the second moving contact component 4 in the second connection bus 11
In the outside of the first moving contact 402 be nearby equipped with the second arc-chutes 13, and the right contact point in the first connection bus 9
901 and the outside of second the second moving contact 403 in moving contact component 4 be nearby provided with third arc-chutes 14.
During second moving contact component 4 is with 401 clockwise oscillation of mandrel, in second moving contact component 4
The second moving contact 403 be rocked to when connecting 901 central collision of right contact point in bus 9 with described first and connecting, led by first
No. 3 electric conductors that electric body 8 is connect in bus 9 with upper No. 3 electric conductors being discharged in bus 7 and first respectively are connected, structure
At delta connection；During second moving contact component 4 is with 401 counter-clockwise swing of mandrel, the second moving contact group
When the first moving contact 402 in part 4 is rocked to 1101 central collision of the left connecting terminal connection being connect in bus 11 with described second, lead to
It crosses second electric conductor 10 and connect the electrical connection of bus 11 with described second, constitute star-star connection.
Further, integral type star triangle start construction of switch of the present invention, wherein first moving contact component 2
It further include thering is support arm 207, drive rod 206, swing arm 205, shaft 203 and connection bolt 208, the support arm 207 to pass through company
Connecting bolt 208 is connect with one end of drive rod 206, and the shaft 203 is set in the swing arm 205, under the swing arm 205
End is connect by connecting bolt 208 with the other end of drive rod 206, and first movable contact 201 is set to the support arm 207
Upper end, and, first movable contact 201 and first static contact corresponding with the first static contact 101 in first bus 1
Main switch is constituted between 101；The lower end of support arm 207 described in second movable contact 202, and in second bus 3
Second static contact 301 is corresponding, mutually overlaps between second movable contact 202 and the second static contact 301；The first soft company
It connects 204 and is located at 206 lower section of the drive rod, described first be flexible coupling 204 one end is fixed in the support arm 207, in institute
The middle part for stating the second bus 3 is equipped with arc protrusion 302, and described first is flexible coupling in 204 other end and second bus 3
Arc protrusion 302 is connected using welding manner, by the overlap joint between second movable contact 202 and the second static contact 301,
And first be flexible coupling and 204 be connected with the arc protrusion 302, realizes dynamic first moving contact component 2 and the second bus 3
Between can keep good electric connection.
Further, integral type star triangle start construction of switch of the present invention, wherein first arc-chutes 12,
Two arc-chutes 13 and third arc-chutes 14 are disposed as grid-type arc-chutes, and the grid-type arc-chutes have arc-chute, by set
The arc-chute set can reduce the arcing time that main switch connects disjunction moment with change-over switch, can effective protection and mitigation contact material
Expect scaling loss.
The above description is only a preferred embodiment of the present invention, is not intended to limit the invention, for those skilled in the art
For member, the invention may be variously modified and varied, all within the spirits and principles of the present invention, made any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. integral type star triangle start construction of switch, includes the Switch main body with control circuit, it is characterised in that: the switch
Ontology includes main switch, change-over switch and time-delay mechanism, the input terminal and the AC three phase mains inlet wire of outside of the main switch
L1 phase, L2 phase and L3 electrical connection, the output end of the main switch is connected with the input terminal of change-over switch, the change-over switch
Output circuit be electrically connected with external motor M；The output circuit of the change-over switch includes multiple star triangle change-over switches, is led to
The main switch starting motor M is crossed, the motor M is controlled by star triangle change-over switch and carries out star triangle start, through time-delay mechanism
Delta connection is returned again to by star triangle change-over switch after delay, realizes that motor M is operated normally.
2. integral type star triangle start construction of switch according to claim 1, it is characterised in that: the main switch includes
First bus (1), the first moving contact component (2) and the first arc-chutes (12), first bus (1) include that there are three conductive
Body, respectively electric conductor A, electric conductor B and electric conductor C, electric conductor A, electric conductor B and electric conductor C in first bus (1)
Successively it is juxtaposed on the top of Switch main body；Input wires terminal is respectively equipped in the front end of first bus (1)
(102), it and is in its back-end respectively equipped with the first static contact (101), the input wires terminal (102) can be with external AC three-phase
L1 phase, the L2 phase of electric power incoming line are electrically connected with L3 phase, the three phase mains inlet interface as the Switch main body；Described
One moving contact component (2) is corresponding with the first bus (1), and first moving contact component (2) is successively disposed in parallel in institute
The side of the first static contact (101) is stated, first moving contact component (2) includes the first movable contact (201), the second movable contact
(202) it is flexible coupling (204) with first, is equipped in the outside of first static contact (101) and the first movable contact (201) corresponding
The first arc-chutes (12), respectively constitute three main switches between first movable contact (201) and the first static contact (101)；
The change-over switch includes the second bus (3), the second moving contact component (4), lower discharge bus (5), third bus
(6), upper discharge bus (7), the first electric conductor (8), the first connection bus (9), the second electric conductor (10), the second connection bus
(11), the second arc-chutes (13) and third arc-chutes (14)；The quantity of second bus (3) and third bus (6) is and institute
It is corresponding to state the first bus (1), includes that there are three electric conductor, respectively electric conductor A, electric conductor B and electric conductor C；
Three electric conductors in second bus (3) are successively juxtaposed on the bottom of Switch main body, in second bus
(3) front end is equipped with the second static contact (301), the second movable contact (202) in first moving contact component (2) respectively with institute
The second static contact (301) overlap joint in the second bus (3) is stated, and first in first moving contact component (2) is flexible coupling
(204) the other end is connected with the second bus (3) respectively；The rear end of second bus (3) and the third bus (6)
Bottom end connection, the other end of the third bus (6) are connected with the upper discharge bus (7), and the upper discharge bus (7) sets
The upper ranking being placed at the top of Switch main body is set, and the front end of upper discharge bus (7) is provided with the first connecting terminal (701),
As one group of discharge wiring, wherein row's connecting terminal is electrically connected with external motor M for the discharge wiring；
Second moving contact component (4) includes mandrel (401), the first moving contact (402), the second moving contact (403), second
Be flexible coupling (404) and circular arc swing arm (405), wherein first moving contact (402) and the second moving contact (403) be located at
Mandrel (401) is circular arc swing arm (405) two sides in the center of circle, and the circular arc swing arm (405) can be with the mandrel (401) left and right
It swings；
The lower ranking that lower discharge bus (5) is set to Switch main body bottom is set, and is set in the front end of lower discharge bus (5)
It is equipped with the second connecting terminal (502) corresponding with the first connecting terminal (701), it is described as another group of discharge wiring
Discharge wiring is electrically connected with another row's connecting terminal in external motor M；And lower discharge bus (5) rear end be provided with
Second in second moving contact component (4) is flexible coupling solder contacts (501) that (404) be connected；
First connection bus (9) is set to the upper right position of second moving contact component (4), the second connection bus
(11) it is set to the upper left position of second moving contact component (4)；It is equipped with and institute in first connection bus (9)
The corresponding right contact point (901) of the second moving contact (403) in the second moving contact component (4) is stated, it is female in second connection
Left contact point (1101) corresponding with the first moving contact (402) in second moving contact component (4) is equipped in line (11)；
Second moving contact component (4) can put under the action of circular arc swing arm (405) with the mandrel (401) left and right
Dynamic, the left connection for driving the first moving contact (402) in second moving contact component (4) to be connect in bus (11) with second is touched
Point (1101) central collision connection, or the second moving contact (403) in second moving contact component (4) is driven to connect bus with first
(9) right contact point (901) the central collision connection in, realizes that second moving contact component (4) connect bus (9) and second with first
It connects and constitutes three star triangle change-over switches arranged side by side between bus (11)；
The upper discharge bus (7) is connected with the first connection bus (9), female in the upper discharge bus (7) and the first connection
The first electric conductor (8) are additionally provided between line (9), in second moving contact component (4) with mandrel (401) clockwise oscillation process
In, the second moving contact (403) in second moving contact component (4) connect the right contact point (901) in bus (9) with first
When central collision connects, delta connection is constituted by first electric conductor (8)；In second moving contact component (4) with mandrel
(401) during counter-clockwise swing, the first moving contact (402) being rocked in second moving contact component (4) connects with second
When connecing left connecting terminal (1101) the central collision connection in bus (11), it is connect by second electric conductor (10) with described second
Bus (11) electrical connection, constitutes star-star connection；
The first dynamic touching in the left connecting terminal (1101) and the second moving contact component (4) in second connection bus (11)
The outside of head (402) is nearby equipped with the second arc-chutes (13), and the right contact point (901) in first connection bus (9)
Nearby third arc-chutes (14) are provided with the outside of the second moving contact (403) in the second moving contact component (4).
3. integral type star triangle start construction of switch according to claim 2, it is characterised in that: the lower discharge bus
(5), upper discharge bus (7), the first connection bus (9) and the second connection bus (11) are made of three electric conductors, and three are led
The number of electric body is respectively No. 1 electric conductor, No. 2 electric conductors and No. 3 electric conductors；Wherein No. 1 in lower discharge bus (5) is led
The lower ranking that electric body, No. 2 electric conductors and No. 3 electric conductors are successively juxtaposed on Switch main body bottom is set, the upper discharge bus
(7) No. 1 electric conductor, No. 2 electric conductors and No. 3 electric conductors in are successively juxtaposed on the upper ranking at the top of Switch main body and set, institute
State three electric conductors in the first connection bus (9) putting in order successively by No. 3 electric conductors, No. 1 electric conductor and No. 2 electric conductors
It is juxtaposed on the top of upper discharge bus (7), No. 1 electric conductor and No. 2 electric conductors point in upper discharge bus (7)
Connection not corresponding with No. 1 electric conductor in the first connection bus (9) and No. 2 electric conductors；
During second moving contact component (4) is with mandrel (401) clockwise oscillation, second moving contact component (4)
In the second moving contact (403) be rocked to when connecting right contact point (901) central collision in bus (9) with described first and connecting, lead to
Cross the first electric conductor (8) respectively in upper discharge bus (7) No. 3 electric conductors and first connect in bus (9) No. 3 lead
Electric body is connected, and constitutes delta connection；
During second moving contact component (4) is with mandrel (401) counter-clockwise swing, second moving contact component (4)
In the first moving contact (402) be rocked to and connect left connecting terminal (1101) central collision in bus (11) with described second and connect
When, bus (11) electrical connection is connect with described second by second electric conductor (10), constitutes star-star connection.
4. integral type star triangle start construction of switch according to claim 2, it is characterised in that: the first moving contact group
Part (2) further includes having support arm (207), drive rod (206), swing arm (205), shaft (203) and connection bolt (208), described
Support arm (207) is connect by connecting bolt (208) with one end of drive rod (206), and the shaft (203) is set to the pendulum
In arm (205), the lower end of the swing arm (205) is connect by connecting bolt (208) with the other end of drive rod (206), described
First movable contact (201) is set to the upper end of the support arm (207), and with the first static contact in first bus (1)
(101) corresponding, main switch is constituted between first movable contact (201) and the first static contact (101)；Second movable contact
(202) lower end of the support arm (207), and it is corresponding with the second static contact (301) in second bus (3), it is described
(202 and second mutually overlap between static contact (301) second movable contact；Described first be flexible coupling (204) be located at the drive rod
(206) lower section, described first one end for being flexible coupling (204) is fixed in the support arm (207), in second bus (3)
Middle part be equipped with arc protrusion (302), described first be flexible coupling (204) the other end and second bus (3) in arc
Protrusion (302) is connected using welding manner, passes through second movable contact (202 and second the taking between static contact (301)
Connect and first be flexible coupling (204) be connected with the arc protrusion (302) and connect, realize dynamic first moving contact component (2)
Good electric connection can be kept between the second bus (3).
5. integral type star triangle start construction of switch according to claim 2, it is characterised in that: first arc-chutes
(12), the second arc-chutes (13) and third arc-chutes (14) are disposed as grid-type arc-chutes, and the grid-type arc-chutes have arc extinguishing
Grid can reduce the arcing time that main switch connects with change-over switch disjunction moment by set arc-chute, reduce contact mill
Damage.
6. integral type star triangle start construction of switch according to claim 1, it is characterised in that: the motor M is three-phase
Asynchronous motor.
7. integral type star triangle start construction of switch according to claim 1, it is characterised in that: the time-delay mechanism is machine
The time range of tool time-delay mechanism or the time relay, the time-delay mechanism delay is 2-10 seconds.
8. integral type star triangle start construction of switch according to claim 1, it is characterised in that: the Switch main body also wraps
Operating mechanism is included, the operating mechanism is electrically connected with main switch and change-over switch respectively, controls electricity by the operating mechanism
Working condition machine M starting or closed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910326217.4A CN109950071B (en) | 2019-04-23 | 2019-04-23 | Integrated star-delta starting switch structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910326217.4A CN109950071B (en) | 2019-04-23 | 2019-04-23 | Integrated star-delta starting switch structure |
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| Publication Number | Publication Date |
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| CN109950071A true CN109950071A (en) | 2019-06-28 |
| CN109950071B CN109950071B (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910326217.4A Active CN109950071B (en) | 2019-04-23 | 2019-04-23 | Integrated star-delta starting switch structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022181980A1 (en) * | 2021-02-26 | 2022-09-01 | 엘에스일렉트릭 (주) | Arc chute and load break switch including same |
| WO2022181986A1 (en) * | 2021-02-26 | 2022-09-01 | 엘에스일렉트릭 (주) | Arc chute and load switch comprising same |
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|---|---|---|---|---|
| EP2009343A2 (en) * | 2007-06-28 | 2008-12-31 | Omron Corporation | Safety system and safety equipment |
| CN202334404U (en) * | 2011-11-23 | 2012-07-11 | 永贵能源开发有限责任公司 | Star type triangular starter of high-power motor |
| CN206686110U (en) * | 2017-04-11 | 2017-11-28 | 马云浦 | A kind of star triangle start type controller |
| CN206759347U (en) * | 2017-03-28 | 2017-12-15 | 郑州龙威电子科技有限公司 | A kind of star triangle start controller |
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2019
- 2019-04-23 CN CN201910326217.4A patent/CN109950071B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2009343A2 (en) * | 2007-06-28 | 2008-12-31 | Omron Corporation | Safety system and safety equipment |
| CN202334404U (en) * | 2011-11-23 | 2012-07-11 | 永贵能源开发有限责任公司 | Star type triangular starter of high-power motor |
| CN206759347U (en) * | 2017-03-28 | 2017-12-15 | 郑州龙威电子科技有限公司 | A kind of star triangle start controller |
| CN206686110U (en) * | 2017-04-11 | 2017-11-28 | 马云浦 | A kind of star triangle start type controller |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022181980A1 (en) * | 2021-02-26 | 2022-09-01 | 엘에스일렉트릭 (주) | Arc chute and load break switch including same |
| WO2022181986A1 (en) * | 2021-02-26 | 2022-09-01 | 엘에스일렉트릭 (주) | Arc chute and load switch comprising same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109950071B (en) | 2020-03-24 |
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