CN208923011U - A kind of high-voltage circuitbreaker with permanent magnet synchronous motor operating mechanism - Google Patents
A kind of high-voltage circuitbreaker with permanent magnet synchronous motor operating mechanism Download PDFInfo
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- CN208923011U CN208923011U CN201820745711.5U CN201820745711U CN208923011U CN 208923011 U CN208923011 U CN 208923011U CN 201820745711 U CN201820745711 U CN 201820745711U CN 208923011 U CN208923011 U CN 208923011U
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Abstract
The utility model discloses a kind of high-voltage circuitbreaker with permanent magnet synchronous motor operating mechanism, high-voltage circuitbreaker includes arc extinguishing unit, transmission system and driving device.Arc extinguishing unit includes three-phase insulator, and three-phase insulator all includes upper insulator, lower insulator, static contact, moving contact, and upper insulator and lower insulator constitute insulation chamber, for cut-offfing and insulating for static contact, moving contact.Driving device includes power module, motor and attachment device, and power module provides power supply for motor, and motor drives attachment device, and drives the runner of transmission system；Transmission system includes transmission case, runner, output pull rod, multiple connecting rods, insulated pull rod, pull rod is exported by the rotate driving of runner, export multiple connecting rods that pull rod drives transmission system, horizontal displacement, which is carried out, by multiple connecting rods drives multiple insulated pull rods, the mechanical linkage of the vertical direction of the moving contact of A phase insulator, B phase insulator and C phase insulator is driven, realizes separating brake or combined floodgate.
Description
Technical field
The utility model relates to high-voltage circuitbreaker technical fields, match permanent magnet synchronous motor actuating more particularly, to one kind
The high-voltage circuitbreaker of mechanism.
Background technique
High-voltage circuitbreaker is protection and control equipment important in electric system, and operating mechanism is the important composition of breaker
One of part, movenent performance directly affects the ability of arc extinguishing unit drop-out current.Traditional operating mechanism is using spring, hydraulic
Or the mechanisms such as pneumatic, it is mainly made of several parts such as connecting rod, lock and energy supply system, components are more, mechanical knot
Structure is complicated, cumulative movement tolerance is big and cannot achieve regulation and control to actuating process.Currently, replacing spring using capacitor
Or compressed air becomes the new developing direction of high-voltage circuitbreaker to store the New-type electric machine operating mechanism of control operating mechanism energy.
The operating mechanism of prior art high-voltage circuitbreaker mostly uses greatly spring, the hydraulic or mechanisms such as pneumatic.Prior art behaviour
The components of motivation structure are excessive, too long for the output torque of driving machine, and setting is complicated.
Therefore, it is necessary to a kind of technologies, to realize the high-voltage circuitbreaker for synchronous triggering.
Summary of the invention
The present invention provides a kind of high-voltage circuitbreakers with permanent magnet synchronous motor operating mechanism, to solve how to synchronize triggering
The problem of high-voltage circuitbreaker.
To solve the above-mentioned problems, the present invention provides a kind of, and the high-voltage circuitbreaker with permanent magnet synchronous motor operating mechanism is high
Voltage breaker, the high-voltage circuitbreaker include arc extinguishing unit, transmission system and driving device, it is characterised in that:
The arc extinguishing unit includes A phase insulator, B phase insulator and C phase insulator, the A phase insulator, the B phase insulator with
And the C phase insulator all includes upper insulator, lower insulator, static contact, moving contact, the upper insulator and the lower insulator constitute insulation
Chamber, for cut-offfing and insulating for the static contact, the moving contact；
The driving device includes power module, motor and attachment device, and the power module provides electricity for the motor
Source, the motor drives the attachment device, and drives the runner of the transmission system；
The transmission system includes transmission case, runner, output pull rod, multiple connecting rods, insulated pull rod, passes through the runner
Pull rod is exported described in rotate driving, the output pull rod drives the multiple connecting rod of the transmission system, realizes the multiple
The horizontal displacement of connecting rod carries out horizontal displacement by the multiple connecting rod and drives the multiple insulated pull rod, drives the A phase porcelain
The mechanical linkage of the vertical direction of the moving contact of set, B phase insulator and C phase insulator realizes separating brake or combined floodgate.
Preferably, the angle that the driving unit is rotated by driving runner, with the moving contact displacement relation are as follows:
X indicates the moving contact displacement, and H indicates that moving contact stroke, δ are motor output shaft rotational angle.
Preferably, the transmission system includes connecting lever outside A phase, the outer connecting lever of connecting lever, C phase, A phase transmission shaft, B are passed on from one to another outside B phase
Moving axis, C phase transmission shaft, connecting lever in A phase, connecting lever in B phase, connecting lever, the first interphase connecting rod, the second interphase connecting rod, third phase in C phase
Between connecting rod, the 4th interphase connecting rod and runner.
Preferably, the outer connecting lever of the A phase and the first interphase connecting rod first end, the second interphase connecting rod first end phase
Connection；
The outer connecting lever of the B phase is alternate with the first interphase connecting rod second end, the second interphase connecting rod second end, third
Connecting rod first end, the 4th interphase connecting rod first end are connected；
The outer connecting lever of the C phase is connected with the third interphase connecting rod second end, the 4th interphase connecting rod second end.
Preferably, the outer connecting lever of the A phase, connecting lever first end is connected with the A phase transmission shaft in the A phase；
Connecting lever first end, the output pull rod are connected with the B phase transmission shaft in the outer connecting lever of the B phase, the B phase；
Connecting lever first end is connected with the C phase transmission shaft in the outer connecting lever of the C phase, the C phase.
Preferably, connecting lever second end is connected with A phase insulated pull rod in the A phase；
Connecting lever second end is connected with B phase insulated pull rod in the B phase；
Connecting lever second end is connected with C phase insulated pull rod in the C phase；
Preferably, the driving device is set to the underface medium position of the transmission system.
Preferably, rotational angle is no more than 100 ° in the runner driving making process, and the runner drives separating brake mistake
Rotational angle is no more than 90 ° in journey
Preferably, the motor is permanent magnet synchronous motor.
The good modulating properties of servo drive motor are combined with advanced control algolithm by digital control unit, it is real
Now the high-efficiency dynamic of breaker motion process is controlled.High-voltage circuitbreaker provided by the present application, in conjunction with sulfur hexafluoride breaker
Mechanical property index proposes a kind of operating mechanism that breaker is directly driven using three-phase permanent magnet synchronous motor, controls dynamic touching
Head not only may be implemented the matching of circuit breaker load counter-force and mechanism power output, also can be improved according to ideal divide-shut brake curvilinear motion
The switching on and off ability of breaker.
Detailed description of the invention
By reference to the following drawings, exemplary embodiments of the present invention can be more fully understood by:
Fig. 1 is a kind of high-voltage circuitbreaker structure with permanent magnet synchronous motor operating mechanism according to embodiment of the present invention
Figure；
Fig. 2-a is a kind of high-voltage circuitbreaker separating brake with permanent magnet synchronous motor operating mechanism according to embodiment of the present invention
The transmission schematic diagram of state；
Fig. 2-b is a kind of high voltage circuit breaker closing with permanent magnet synchronous motor operating mechanism according to embodiment of the present invention
State is driven schematic diagram；
Fig. 3-a is the driving motor structural schematic diagram according to embodiment of the present invention；
Fig. 3-b is the driving motor structural schematic diagram according to embodiment of the present invention.
Specific embodiment
Exemplary embodiments of the present invention are introduced referring now to the drawings, however, the present invention can use many different shapes
Formula is implemented, and is not limited to the embodiment described herein, and to provide these embodiments be at large and fully disclose
The present invention, and the scope of the present invention is sufficiently conveyed to person of ordinary skill in the field.Show for what is be illustrated in the accompanying drawings
Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements use identical attached
Icon note.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has person of ordinary skill in the field
It is common to understand meaning.Further it will be understood that with the term that usually used dictionary limits, should be understood as and its
The context of related fields has consistent meaning, and is not construed as Utopian or too formal meaning.
Fig. 1 is a kind of high-voltage circuitbreaker structure with permanent magnet synchronous motor operating mechanism according to embodiment of the present invention
Figure.High-voltage circuitbreaker motor trigger mechanism structure arc extinguishing unit, driving device and transmission system as shown in Figure 1, be mainly made of.
The application converts the spinning movement of motor to by transmission mechanism using connection scheme the linearly operating of moving contact, and then drives
Breaker is completed to divide/closing operation.As shown in Figure 1, a kind of high-voltage circuitbreaker 100 with permanent magnet synchronous motor operating mechanism, packet
Include arc extinguishing unit, transmission system and driving device, it is characterised in that:
Arc extinguishing unit includes A phase insulator A phase insulator, B phase insulator and C phase insulator, A phase insulator, B phase insulator and C phase
Insulator all includes upper insulator, lower insulator, static contact 1, moving contact 2, and upper insulator and lower insulator constitute insulation chamber, for being stationary contact
First 1, moving contact 2 cut-offs and insulate.
Arc extinguishing unit includes three phase isolated insulator composition in the application, and three phase isolated insulator is all divided into insulator and lower porcelain
Set, lower insulator are connected with the interior connecting lever of transmission system, turn in the horizontal displacement drive by the horizontal interphase connecting rod of transmission system
Arm, and then realize three phase mechanical linkage, the use of this connection scheme can reduce the requirement to transmission main shaft torque, mention simultaneously
The synchronism of high threephase switch triggering.
Driving device includes power module, motor and attachment device, and power module provides power supply for motor, and motor, which drives, to be connected
Connection device, and the runner 7 of transmission system is driven, by the driving output pull rod 8 of runner 7 of rotation, output pull rod 8 drives power train
Multiple connecting rods 61,62,63,64 of system, realize the horizontal displacement of multiple connecting rods 61,62,63,64.
Transmission system includes transmission case, runner, output pull rod, insulated pull rod, multiple connecting rods 61,62,63,64, by turning
The rotate driving of wheel exports pull rod, and output pull rod drives multiple connecting rods of transmission system, realizes the horizontal displacement of multiple connecting rods, leads to
It crosses multiple connecting rods 61,62,63,64 and carries out the multiple insulated pull rods of horizontal displacement driving, such as (the B phase porcelain of insulated pull rod 3 of A phase insulator
The insulated pull rod of set and the insulated pull rod of C phase insulator are position corresponding with the insulated pull rod 3 of A phase insulator, are not shown in Fig. 1
Out), the moving contact for driving A phase insulator, B phase insulator and C phase insulator, as A phase insulator moving contact 2 (moving contact of B phase insulator and
The moving contact of C phase insulator is position corresponding with the moving contact 2 of A phase insulator, is not shown in Fig. 1) vertical direction machinery
It interlocks, realizes separating brake or combined floodgate.
Transmission system is a set of crank block slider structure, mainly includes multiple connecting rods, transmission case, multiple interior connecting levers, multiple outer
Connecting lever, output pull rod, runner etc..The insulated pull rod phase that transmission mechanism passes through the horizontal interphase connecting rod and breaker body of transmission case
Even, transmission system is connected by runner 7 with driving device rotor.
Preferably, the angle that driving device is rotated by driving runner 7, with 2 displacement relation of moving contact are as follows:
X indicates that moving contact 2 is displaced, and H indicates that moving contact stroke, δ are motor output shaft rotational angle.
Preferably, transmission system includes connecting lever 4 outside A phase, the outer connecting lever of connecting lever, C phase, A phase transmission shaft 10, B are passed on from one to another outside B phase
Moving axis, C phase transmission shaft, connecting lever in A phase, connecting lever in B phase, connecting lever 9 in C phase, the first interphase connecting rod 61, the second interphase connecting rod 62,
Third interphase connecting rod 63, the 4th interphase connecting rod 64 and runner 7.
Preferably, the outer connecting lever 4 of A phase is connected with the first interphase connecting rod first end, the second interphase connecting rod first end；
The outer connecting lever of B phase and the first interphase connecting rod second end, the second interphase connecting rod second end, third interphase connecting rod first end,
4th interphase connecting rod first end is connected；
The outer connecting lever of C phase is connected with third interphase connecting rod second end, the 4th interphase connecting rod second end.
Preferably, the outer connecting lever of A phase, connecting lever first end is connected with A phase transmission shaft in A phase；
Connecting lever first end, output pull rod are connected with B phase transmission shaft in the outer connecting lever of B phase, B phase；
Connecting lever first end is connected with C phase transmission shaft in the outer connecting lever of C phase, C phase.
Preferably, connecting lever second end is connected with A phase insulated pull rod in A phase；
Connecting lever second end is connected with B phase insulated pull rod in B phase；
Connecting lever second end is connected with C phase insulated pull rod in C phase；
Preferably, driving device is set to the underface medium position of transmission system.
Preferably, rotational angle is no more than 100 ° in runner driving making process, and runner rotates during driving separating brake
Angle is no more than 90 °
Preferably, driving motor is permanent magnet synchronous motor.
Fig. 2-a is the transmission schematic diagram of high-voltage circuitbreaker separating brake state.Fig. 2-b is the transmission of high voltage circuit breaker closing state
Schematic diagram.As shown in Fig. 2-a, x indicates moving contact displacement in figure.When breaker carries out closing operation, since open position,
Runner rotates counterclockwise under the drive of the motor, drives insulated pull rod vertically moving by output pull rod and interior connecting lever,
The moving contact of lower insulator is driven to move to closing position.When closing position, motor driving force and transmission mechanism dead point (E') are utilized
It is common to inhibit rebound of closing a floodgate, so that breaker is eventually held in "on" position.For the sub-switching operation of breaker, the fortune of operating mechanism
Dynamic process is opposite with closing operation.Inter-agency angle passes through geometry point as shown in making process in Fig. 2-b in making process
Analysis, available motor corner and the approximation relation that contact is displaced are as shown in Equation 2, and OE is runner radius；ED is expressed as output and draws
Bar, CB indicate interior connecting lever, and AB is insulated pull rod
X indicates that moving contact 2 is displaced, and H indicates that moving contact stroke, δ are motor output shaft rotational angle.
It is verified for the technical effect to the application embodiment, to the open air a LW30-126 self extinguishing type SF6 open circuit
Device spring operating mechanism is simplified, and designs electric operating mechanism analog machine as shown in Fig. 3-a and 3-b.Touching is moved in action process
Head stroke is H=150mm, and corner when closing position is set as 100 °, and corner when open position is set as -90 °, entirely
Action process motor corner is 190 °.Therefore, the requirement to output torque can be reduced by crank block slider structure, meanwhile, most
It can reduce the requirement to motor torque using motor corner on a large scale.
In the application, the driving motor of driving device is located at medium position below transmission system, and output revolving shaft passes through biography
Motivation structure is connected with moving contact.The type selecting of motor will be in conjunction with the load characteristic during breaker actuation, to guarantee going out for motor
The spring load characteristic of force characteristic and breaker is good fit.The driving motor model that the present embodiment uses are as follows: phase-1340A's
4 pairs of pole permanent-magnet synchronous machines, outer dimension is as shown in Fig. 3-a or 3-b.
In the application, motor greatly reduces the zero of traditional operating mechanism as unique driving part in operating mechanism
Component improves the reliability of operating mechanism.Meanwhile the connection scheme of three-phase connecting rod horizontal conveyor, it reduces and rotary part is exported
The requirement of torque, threephase switch synchronism are good.In addition, reducing the requirement to motor torque.
From principle, the movement of trigger mechanism moving contact is only related with motor corner, and control motor corner displacement is equivalent to
Moving contact stroke curve is controlled, realizes that circuit-breaker switching on-off movement is controllable.
A kind of trigger mechanism that breaker is directly driven using three-phase permanent magnet synchronous motor that the application proposes controls contact
According to ideal divide-shut brake curvilinear motion, the matching of circuit breaker load counter-force and mechanism power output not only may be implemented, also can be improved disconnected
The switching on and off ability of road device.
The present invention is described by reference to a small amount of embodiment.However, it is known in those skilled in the art, as
Defined by subsidiary Patent right requirement, in addition to the present invention other embodiments disclosed above equally fall in it is of the invention
In range.
Normally, all terms used in the claims are all solved according to them in the common meaning of technical field
It releases, unless in addition clearly being defined wherein.All references " one/described/be somebody's turn to do [device, component etc.] " are all opened ground
At least one example being construed in described device, component etc., unless otherwise expressly specified.Any method disclosed herein
Step need not all be run with disclosed accurate sequence, unless explicitly stated otherwise.
Claims (9)
1. a kind of high-voltage circuitbreaker with permanent magnet synchronous motor operating mechanism, the high-voltage circuitbreaker includes arc extinguishing unit, transmission
System and driving device, it is characterised in that:
The arc extinguishing unit includes A phase insulator, B phase insulator and C phase insulator, the A phase insulator, the B phase insulator and institute
Stating C phase insulator all includes upper insulator, lower insulator, static contact, moving contact, and the upper insulator and the lower insulator constitute insulated cavity
Room, for cut-offfing and insulating for the static contact, the moving contact；
The driving device includes power module, motor and attachment device, and the power module provides power supply for the motor, institute
It states motor and drives the attachment device, and drive the runner of the transmission system；
The transmission system includes transmission case, runner, output pull rod, multiple connecting rods, insulated pull rod, passes through the rotation of the runner
The output pull rod is driven, the output pull rod drives the multiple connecting rod of the transmission system, realizes the multiple connecting rod
Horizontal displacement, horizontal displacement is carried out by the multiple connecting rod and drives multiple insulated pull rods, drives the A phase insulator, B phase porcelain
The mechanical linkage of the vertical direction of the moving contact of set and C phase insulator, realizes separating brake or combined floodgate.
2. high-voltage circuitbreaker according to claim 1, the driving device is and described by the angle of driving runner rotation
Moving contact displacement relation are as follows:
X indicates the moving contact displacement, and H indicates that moving contact stroke, δ are motor output shaft rotational angle.
3. high-voltage circuitbreaker according to claim 1, the transmission system includes the outer connecting lever of A phase, the outer connecting lever of B phase, outside C phase
Connecting lever, A phase transmission shaft, B phase transmission shaft, C phase transmission shaft, connecting lever in A phase, connecting lever in B phase, connecting lever, the first alternate company in C phase
Bar, the second interphase connecting rod, third interphase connecting rod, the 4th interphase connecting rod and runner.
4. high-voltage circuitbreaker according to claim 3, the outer connecting lever of the A phase and the first interphase connecting rod first end, institute
The second interphase connecting rod first end is stated to be connected；
The outer connecting lever of the B phase and the first interphase connecting rod second end, the second interphase connecting rod second end, third interphase connecting rod
First end, the 4th interphase connecting rod first end are connected；
The outer connecting lever of the C phase is connected with the third interphase connecting rod second end, the 4th interphase connecting rod second end.
5. high-voltage circuitbreaker according to claim 3, connecting lever first end and the A in the outer connecting lever of the A phase, the A phase
Phase transmission shaft is connected；
Connecting lever first end, the output pull rod are connected with the B phase transmission shaft in the outer connecting lever of the B phase, the B phase；
Connecting lever first end is connected with the C phase transmission shaft in the outer connecting lever of the C phase, the C phase.
6. high-voltage circuitbreaker according to claim 3, connecting lever second end is connected with A phase insulated pull rod in the A phase；
Connecting lever second end is connected with B phase insulated pull rod in the B phase；
Connecting lever second end is connected with C phase insulated pull rod in the C phase.
7. high-voltage circuitbreaker according to claim 1, the driving device is set in the underface of the transmission system
Portion position.
8. high-voltage circuitbreaker according to claim 1, in the runner driving making process rotational angle be no more than
100 °, it is no more than 90 ° that the runner, which drives rotational angle during separating brake,.
9. high-voltage circuitbreaker according to claim 1, the motor is permanent magnet synchronous motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820745711.5U CN208923011U (en) | 2018-05-18 | 2018-05-18 | A kind of high-voltage circuitbreaker with permanent magnet synchronous motor operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820745711.5U CN208923011U (en) | 2018-05-18 | 2018-05-18 | A kind of high-voltage circuitbreaker with permanent magnet synchronous motor operating mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN208923011U true CN208923011U (en) | 2019-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820745711.5U Active CN208923011U (en) | 2018-05-18 | 2018-05-18 | A kind of high-voltage circuitbreaker with permanent magnet synchronous motor operating mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN208923011U (en) |
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2018
- 2018-05-18 CN CN201820745711.5U patent/CN208923011U/en active Active
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