CN105448603B - A kind of contactless electromagnetic switch and electromagnetic linear motor formula sectional power supply switching device - Google Patents
A kind of contactless electromagnetic switch and electromagnetic linear motor formula sectional power supply switching device Download PDFInfo
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- CN105448603B CN105448603B CN201510748318.2A CN201510748318A CN105448603B CN 105448603 B CN105448603 B CN 105448603B CN 201510748318 A CN201510748318 A CN 201510748318A CN 105448603 B CN105448603 B CN 105448603B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
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- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- Linear Motors (AREA)
- Control Of Linear Motors (AREA)
Abstract
A kind of electromagnetic linear motor formula sectional power supply switching device, it include be mounted on unit electric motor stand or on the way on the basis of stator department and the moving portion on mover, the stator department and moving portion clearance fit setting, constitute one group of contactless electromagnetic switch.Compared with prior art, the present invention the automatic linear motor sectional power switching device that traditional line motor driven systems sectional power supply switching mechanism is complicated, reliability is low, at high cost, of the invention, structure are simple, safe and reliable, economic and practical.
Description
Technical field
The present invention relates to linear motor drive areas, and in particular to driving system of linear motor sectional power supply and switching fill
It sets.
Background technique
Driving system of linear motor has been widely used for all trades and professions.In Linear Metro, directly drive elevator, straight-line electric
The isometric stroke applications field of machine automatic assembly line, it is general using long primary, short secondary structure of the linear motion actuator, power supply technique at
For one of key technology.Currently used scheme mainly has whole continuous power supply and sectional power supply two types.Whole continuous confession
Electric mode structure and control are simple, but wasting for entire power supply line is very serious.Using the meaning of sectional power supply to be can be with
Efficiency is significantly improved, electric energy is saved, reduces power supply capacity and driving power.Sectional power supply also complies with modularization, standardized wants
It asks, is conducive to manufacture installation and maintenance uses.Currently used sectional power supply has the function such as IGBT, thyristor, solid-state relay
Rate device or the electromagnetism such as power switch electronics switching mode and contactor, mechanical switch mode.Fig. 1 show existing direct-drive system
System sectional power supply switching principle figure, each unit motor arrange the two-way main contacts of normally-open normally-close, and N group unit motor just has N group
The two-way main contacts of normally-open normally-close, quantity is various, requires to arrange a large amount of position-detection sensor on the way, special protection electricity
The processing apparatus such as road, programmable controller, host computer, intermediate link is more, and there are electronic switches and solenoid winding to be lost greatly,
Circuit is complicated, sensor failure malfunction, switches the defects of unreliable, and electronics switching is difficult to realize directly drive the application such as elevator
All machine windings (are shorted, protection carriage is " forever by the passive dynamic brake protection of field permanent-magnetism linear motor automatically under power blackout situation
Do not drop ").
Summary of the invention
A kind of the technical problem to be solved in the present invention is to provide structures simple, safe and reliable, economic and practical linear motor
Sectional power supply switching device, the present invention solve traditional line motor driven systems sectional power supply switching mechanism complexity, reliability
Low, at high cost technical problem.
The invention is realized by the following technical scheme:
A kind of contactless electromagnetic switch, it include be mounted on unit electric motor stand or on the way on the basis of stator department and be located at
Moving portion on mover, the stator department and the setting of moving portion clearance fit, constitute one group of contactless electromagnetic switch.
The moving portion is mobile armature, and stator department is movement armature, is arranged on mobile armature or movement armature
Permanent magnet；Movement armature is connected by touch spring with movable contact, and movable contact is equipped with the stationary contact being matched therewith.
Compression spring is additionally provided on the movable contact, movement armature is connected with balancing spring, in touch spring, equilibrium bomb
Under the collective effect of spring and movement armature, mobile armature and movement armature are contactless.
The movable contact and stationary contact is located in arc-extinguish chamber or in vacuum tube.
The mobile armature and movement armature are E shape or U-shaped or rectangle armature, permanent magnet setting in mobile armature or
Act the iron core column end face of armature.
Magnet exciting coil is cased on mobile armature or the iron core column for acting armature.
The moving portion is permanent magnet, and stator department is tongue tube, setting moving contact and static contact in tongue tube.
Using the electromagnetic linear motor formula sectional power supply switching device, it include be fixed on hoistway rack or on the basis of
Stator track, power source bus, the multistage unit motor stator module being arranged in stator track, and with motor stator unit
The corresponding electric mover of module, it is characterised in that: at least one set of unit motor stator winding access at least set of segmentation power supply
Mechanism, sectional power supply mechanism are contactless electromagnetic switch；In mover moving process, all stators Chong Die with mover coupling around
Group, contactless electromagnetic switch are attracted, so that the electromagnetic switch of coupling is in closed state, persistently obtain electric energy, and non-with mover
The stator winding of overlapping region is in off-position since contactless electromagnetic switch is not attracted.
Along the hoistway mover direction of motion one column power source bus of parallel arrangement, power source bus is powered on by bus-tie circuit breaker and ground
Source connection；Each segment unit motor stator winding side is evenly arranged the stator department of at least one set of contactless electromagnetic switch respectively, and each section
Unit motor stator winding is connect by contactless electromagnetic switch with power source bus respectively；In setting and electromagnetic switch on mover
Stator department is parallel and is kept fixed the strip magnetism stick in gap, which is continuous homogenizing bar, by several insulating bars with
Mover is consolidated, and magnetism stick is mobile with mover and moves, and when magnetism stick is located at corresponding position of stator, magnetism stick will be corresponded to
The movement armature of electromagnetic switch stator department sucks up, and movement armature drives the contact action of electromagnetic switch, circuit is connected, by power supply
The feeding electric energy of bus gives corresponding stator winding；When except magnetism stick moving on to corresponding stator winding range, magnetism stick with
Corresponding movement armature is detached from, and movement armature returns under the reaction of spring, and corresponding contact is disconnected, and stator winding is disconnected
Electricity.
The contactless electromagnetic switch setting series connection degausser or series connection increase magnetic circuit or the series-parallel magnetic that increases removes magnetoelectricity
Road；
The normally opened auxiliary contact of the contactless electromagnetic switch constitute electromagnetic switch string together with magnet exciting coil, field power supply
Join degausser；
The normally opened auxiliary contact of adjacent at least two electromagnetic switch Cn-1, Cn+1 of n-th of electromagnetic switch Cn are in parallel,
The series connection that electromagnetic switch Cn is constituted together with electromagnetic switch Cn normally closed auxiliary contact and field power supply increases magnetic circuit；
The degausser increases that magnetic circuit and multiple groups are normally opened, normally closed auxiliary contact combines composition electromagnetic switch in series and parallel
The series-parallel increasing magnetic degausser of degaussing after the preceding increasing magnetic of actuation, actuation.
Power source bus is flanked at least one set of contactor or power switch with the two-way main contacts of normally-open normally-close, and described
At least one set of contactless electromagnetic switch, unit motor stator winding cooperation Component units motor are shorted dynamic brake and protect circuit.
Any group of contactless electromagnetic switch can be used as the auxiliary of position switch or position sensor or intermediate relay
Contact is helped to access intermediate control circuit or signal circuit, for turning on and off each unit motor or unit executing agency power supply master
The power electronic device or power electronic switching in circuit.
Compared with prior art, the present invention traditional line motor driven systems sectional power supply switching mechanism is complicated, reliability
Low, at high cost, of the invention automatic linear motor sectional power switching device, structure are simple, safe and reliable, economic and practical.
Detailed description of the invention
Fig. 1 is the electrical main connecting wire schematic diagram of existing linear motor segmentation power supply.
Fig. 2 is electrical main connecting wire schematic diagram of the invention.
Fig. 3 is the schematic diagram of sectional power supply switching device of the invention.
Fig. 4 a is the contactless electromagnetic switch structure schematic diagram one of the present invention.
Fig. 4 b is the contactless electromagnetic switch structure schematic diagram two of the present invention.
Fig. 4 c is the contactless electromagnetic switch structure schematic diagram three of the present invention.
Fig. 4 d is the contactless electromagnetic switch structure schematic diagram four of the present invention.
Fig. 5 is the contactless electromagnetic switch electronic schematic diagram of the present invention.
Fig. 6 is the contactless electromagnetic switch working state structure schematic diagram of the present invention.
Fig. 7 is the contactless electromagnetic switch schematic diagram of tongue tube of the present invention.
Specific embodiment
A kind of contactless electromagnetic switch, it include be mounted on unit electric motor stand or on the way on the basis of stator department and be located at
Moving portion on mover, the stator department and the setting of moving portion clearance fit, constitute one group of contactless electromagnetic switch.
As shown in Fig. 4 a, 4b, 4c, 4d, mover portion is mobile armature 12, and stator department is movement armature 11, in mobile armature
12 or movement armature 11 on permanent magnet is set；Movement armature is connected by touch spring 9 with movable contact 8, and movable contact is equipped with
The stationary contact 7 being matched therewith.
Compression spring 6 is additionally provided on above-mentioned movable contact 8, movement armature 11 is connected with balancing spring 10, in touch spring
9, under the collective effect of balancing spring 10 and movement armature 11, mobile armature 12 and movement armature 11 are contactless.
Preferably, in the top setting pad felt 14 of movement armature 11.
Preferably, movable contact 8 and stationary contact 7 are located in arc-extinguish chamber or in vacuum tube.
Preferably, mobile armature 12 and movement armature 11 are that armature is arranged in E shape or U-shaped or rectangle armature, permanent magnet
Iron core column end face.
Preferably, it is cased with magnet exciting coil 15 in the iron core column for being equipped with permanent magnet, as shown in Fig. 4 c, 4d.
As shown in fig. 7, mover portion is permanent magnet, stator department is tongue tube 43, setting moving contact 41 and quiet in tongue tube 43
Contact 42.
Fig. 2 show linear drive system sectional power supply switching device of the present invention, including is fixed on rack or basic on the way
On stator track, power supply line, multiple unit motors and its stator winding, mover corresponding with unit motor stator winding, point
Section power switching structure.Be arranged on power source bus at least one set of band two-way main contacts of normally-open normally-close (if without dynamic brake requirement, can
Normally opened main contacts is only set) contactor or power switch, the access of each unit motor stator winding is at least one set of to switch normally opened main touching
Point, as shown in Fig. 2, equally realizing the electronic effect with dynamic brake of Fig. 1, but circuit is very simple, saves and largely sets
Standby expense.
Fig. 2 realizes that linear drive system is electronic and dynamic brake function very well, but to realize sectional power supply, it is necessary to make to cut
Changing normally opened main contacts C1 can be by sectional power supply requirement action message and disjunction.In order to achieve the above objectives, using following technical side
Case:
As shown in figure 3, being the schematic diagram of the contactless electromagnetic switch sectional power supply: flat along the hoistway mover direction of motion
Row one column power source bus 30 of arrangement, power source bus 30 are coupled by bus-tie circuit breaker with power supply on ground.Each section of motor stator winding
Side is evenly arranged the stator department 25 of a contactless electromagnetic switch respectively, each section of motor stator winding pass through respectively electromagnetic switch with
Power source bus 30 connects.Strip magnetism stick 26 parallel with electromagnetic switch and being kept fixed gap, the magnetic are set on mover
Property stick 26 be continuous homogenizing bar, be consolidated by several insulating bars 20 with mover 18, magnetism stick 26 with mover 18 move and
Mobile, when magnetism stick 26 is located at corresponding primary position, magnetism stick 26 picks up the movement armature of corresponding electromagnetic switch stator department
Come, movement armature drive electromagnetic switch contact action, connect circuit, by the feeding electric energy of power source bus to corresponding stator around
Group.When except magnetism stick 26 moving on to corresponding stator winding range, magnetism stick 26 is detached from corresponding movement armature, movement rank
Iron returns under the reaction of spring, and corresponding contact is disconnected, stator winding power-off.Thereby realize mover moving process
In, all stator winding Chong Die with mover coupling pass through the actuation effect of magnetism stick, so that the electromagnetic switch of coupling is in
Closed state, persistently obtains electric energy, and with the stator primary of mover Non-overlapping Domain since the actuation of not no magnetism stick acts on, place
In off-position.To realize non-contact sectional power supply.Above scheme either single phase power supply, also may be implemented multiphase around
The power supply of group.That is: power source bus 30 can be single phase poaer supply, and the contact of corresponding electromagnetic switch is single group contact.Power source bus 30
It can be three phase mains or polyphase source, the contact of corresponding electromagnetic switch is three groups of contacts or multiple groups contact.
It is the structural schematic diagram of the contactless electromagnetic switch as shown in Fig. 4 a, 4b: each group electromagnetic switch stator department peace
On the basis of mounted in unit electric motor stand or on the way, electromagnetic switch stator department E shape movement armature corresponds to another and is fixed on mover
The mobile armature of E shape, the two is kept fixed gap, and the moving contact for the main contacts being connected with movement armature is placed in arc extinguishing with static contact
In cover 5 or vacuum tube, normally opened or normally closed auxiliary contact is also connected with movement armature.By taking 1# main contacts as an example, held in the mouth when mover is mobile
When iron 12 is moved to electromagnetic switch stator department movement 11 position of armature, movement armature 11 is overhanging by the suction of permanent magnet 13,
Moving contact 8 and static contact 7 are attracted, and normally opened contact C11 closure, normally-closed contact C12 is disconnected.Due to by compression spring 6, touch spring
9 and balancing spring 10 effect, act armature 11 and mover sidesway moving armature 12 and not in contact with electrical power and mover keep nothing
Contact operation.When mover is moved to next position, armature 11 is acted no longer by suction, by compression spring 6, touch spring
9 and balancing spring 10 effect, be pulled, electromagnetic switch is restored to original state.Due to by pad felt 14 and balancing spring 10
Effect, movement armature 11 will not be because of the excessive extruding electromagnetic switch inner wall of stress.As shown in Fig. 4 a, 4b.
In order to accelerate to act the speed of armature actuation, electromagnetic switch stator department in Fig. 4 a is improved to magnet exciting coil 15
Electromagnet obtains improvement project as shown in Fig. 4 c, 4d.In Fig. 5, at least two n-th of electromagnetic switch Cn adjacent electromagnetic switch
The normally opened auxiliary contact of Cn-1, Cn+1 are in parallel, the structure together with electromagnetic switch Cn normally closed auxiliary contact and magnet exciting coil, field power supply
At the series excitation circuit of electromagnetic switch Cn, magnet exciting coil is moved around to the magnetic pole and mover that movement armature surface should be made to be formed
The pole polarity on 13 surface of armature permanent magnet is opposite.
By taking the 2nd electromagnetic switch C2 as an example, when mover is moved from C1 → C3, C1 electromagnetic switch advancement, C2
Electromagnetic switch not yet acts, at this time the normally opened auxiliary contact C11 closure of C1, and the normally closed auxiliary contact C22 of C2 is still normally off, therefore C2
Excitation coil of electromagnet 15 in electromagnetic switch is powered in advance, and S polarity under upper N is presented in electromagnet, when the mobile armature 12 of mover into
Enter C2 electromagnetic switch operating space, since the magnetic pole on 13 surface of permanent magnet on the mobile armature 12 of mover is the pole N, is opened with C2 electromagnetism
Pass acts the pole S that armature surface is formed, and there is a natural attraction between the sexes, and the two generates biggish electromagnetic attraction, acts C2 electromagnetic switch stator department
11 quick acting of armature, the mechanical clearance between permanent magnet 13 and movement armature become smaller rapidly, and the normally closed auxiliary contact of C2 becomes normally opened,
So that C2 excitation circuit powers off, noseiron 17 loses magnetism, but due to the mechanical clearance between permanent magnet 13 and movement armature
Become smaller, be still able to maintain reliable actuation by permanent magnet suction, make the normally opened main contacts quick-make of C2, connects 2# unit motor power,
The normally opened auxiliary contact closure of C2 simultaneously, connects C3 electromagnetic switch excitation circuit, connects and do with 3# unit motor for C3 electromagnetic switch
It is good to prepare；When the mobile armature 12 of mover leaves C2 electromagnetic switch operating space, C2 electromagnetic switch resets, the normally opened main contacts of C2 becomes normal
It opens, the power-off of 2# unit motor；And so on.The actuation time of Fig. 5 electromagnetic switch greatly reduces.
It should be noted that from design and Practical angle, even if the full line excitation of supply excitation coil of electromagnet
Power outage, the suction between the mobile armature of mover and stator department movement armature also can guarantee that electromagnetic switch is reliably attracted, only
Pickup time is longer.In addition, accelerating actuation, excitation power supply voltage and function since the electromagnet coil in the present invention only serves
Rate can accomplish very little, and its conduction time is not also grown, and electromagnetic switch automatically powers off after being attracted, and loss, fever are than logical
Normal contactor is much lower, substantially prolongs working life.
Fig. 6 is another permanent magnetism and electrical excitation hybrid electromagnetic iron electromagnet switch solution.In Fig. 6,16 lower surface of permanent magnet
Magnetic pole and 13 upper surface of mover side permanent magnet magnetic pole on the contrary, to guarantee C2 electromagnetic switch quick pick-up；Electromagnetic switch is normally opened
Auxiliary contact C21 and magnet exciting coil 15, field power supply constitute electromagnetic switch series excitation circuit, magnet exciting coil around to should make
Make the exciting field of armature formation and the direction of magnetization in movement 16 magnetic field of armature end face permanent magnet on the contrary, i.e. permanent magnetism is weakened in electrical excitation field
Body magnetic field.When the mobile armature 12 of mover enters C2 electromagnetic switch operating space, the quick acting of C2 electromagnetic switch, the normally opened auxiliary touching of C2
Point closure, electromagnet excitation coil are powered, and the suction for generating two blocks of permanent magnetism reduces, and reduce electromagnetic switch stable state the suction-combining force and contact
Pressure extends working life.When the mobile armature 12 of mover leaves C2 electromagnetic switch operating space, C2 electromagnetic switch resets, C2 is normal
It opens auxiliary contact and becomes normally opened, energized circuit power-off.
By above-mentioned increasing magnetic circuit, degausser and multiple groups are normally opened, normally closed auxiliary contact combines also constitute electromagnetism in series and parallel
Switch increases the series-parallel increasing magnetic degausser of degaussing after magnetic, actuation before being attracted.
Fig. 7 is the contactless electromagnetic switch scheme of another tongue tube.The contactless electromagnetic switch sectional power supply machine
Structure, the stator department of electromagnetic switch be tongue tube 43 be mounted on unit electric motor stand or on the way on the basis of, permanent magnet is set on mover,
It is arranged with electromagnetic switch stator department tongue tube fit clearance, constitutes one group of contactless electromagnetic switch.When rotor permanent magnet is moved to
43 region of tongue tube, moving contact 41, static contact 42 inside tongue tube are acted on by permanent magnet becomes normally closed by normally opened, connects
Place unit machine winding.Conversely, leave 43 region of tongue tube when rotor permanent magnet, moving contact 41 inside tongue tube,
Static contact 42 becomes normally opened by normally closed, unit machine winding where disconnecting.
In addition, as an expanded application of the invention, the source side wiping rail and unit motor side wiping rail
Can access intermediate control circuit or signal circuit, wiping switch it is alternative or as position switch open in usual or position sensor or
The auxiliary contact of intermediate relay in turn switch on and turn off the power of the main circuit power supply of each unit motor or unit executing agency
Electronic device or power electronic switching.The electricity such as IGBT, thyristor, solid-state relay for driving control systems such as linear motors
The occasions such as minor sectional power supply and switching, act relatively reliable.
The normally opened or normally-closed contact of the contactless electromagnetic switch is also alternative or as position switch or position sensing
The auxiliary contact of device or intermediate relay access intermediate control circuit or signal circuit, in turn switch on and turn off each unit motor or
The power electronic device or power electronic switching of the main circuit power supply of unit executing agency.For the drive controls such as linear motor system
The occasions such as the electronic types such as IGBT, thyristor, solid-state relay of system sectional power supply and switching.
Because signal code, control electric current very little, switch and contactless as position switch and the wiping of centre control
Electromagnetic switch can be by low current, Miniaturization Design and manufacture.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (10)
1. electromagnetic linear motor formula sectional power supply switching device, it include be fixed on hoistway rack or on the basis of stator track,
Power source bus, the multistage unit motor stator module being arranged in stator track, and it is corresponding with motor stator unit module
Electric mover, it is characterised in that: at least one set of unit motor stator winding accesses an at least set of segmentation power supply mechanism, and segmentation supplies
Motor structure is contactless electromagnetic switch；Contactless electromagnetic switch include be mounted on unit electric motor stand or on the way on the basis of stator
Portion and the moving portion on mover, the stator department and the setting of moving portion clearance fit, constitute one group of contactless electromagnetism and open
Close unit；In mover moving process, all stator winding Chong Die with mover coupling, contactless electromagnetic switch is attracted, so that coupling
The electromagnetic switch of conjunction is in closed state, persistently obtains electric energy, and with the stator winding of mover Non-overlapping Domain due to contactless
Electromagnetic switch is not attracted, and is in off-position.
2. electromagnetic linear motor formula sectional power supply switching device according to claim 1, it is characterised in that: the movement
Portion is mobile armature (12), and stator department is movement armature (11), is arranged forever on mobile armature (12) or movement armature (11)
Magnet；Movement armature is connected by touch spring (9) with movable contact (8), and movable contact is equipped with the stationary contact being matched therewith
(7).
3. electromagnetic linear motor formula sectional power supply switching device according to claim 2, it is characterised in that: the dynamic touching
Compression spring is additionally provided on point (8), movement armature (11) is connected with balancing spring (10), in touch spring (9), balancing spring
(10) and under the collective effect of movement armature (11), mobile armature (12) and movement armature (11) are contactless.
4. electromagnetic linear motor formula sectional power supply switching device according to claim 2, it is characterised in that: the dynamic touching
Point (8) and stationary contact (7) are located in arc-extinguish chamber or in vacuum tube.
5. electromagnetic linear motor formula sectional power supply switching device according to claim 2, it is characterised in that: the movement
Armature (12) and movement armature (11) are E shape or U-shaped or rectangle armature, and permanent magnet setting is in mobile armature (12) or movement rank
The iron core column end face of iron (11).
6. electromagnetic linear motor formula sectional power supply switching device according to claim 5, it is characterised in that: in mobile armature
(12) or in the iron core column of movement armature (11) magnet exciting coil (15) are cased with.
7. electromagnetic linear motor formula sectional power supply switching device according to claim 1, it is characterised in that: the movement
Portion is permanent magnet, and stator department is tongue tube (43), setting moving contact (41) and static contact (42) in tongue tube (43).
8. -7 any electromagnetic linear motor formula sectional power supply switching device according to claim 1, it is characterised in that: along well
The road mover direction of motion one column power source bus (30) of parallel arrangement, power source bus (30) are joined by power supply on bus-tie circuit breaker and ground
It connects；Each segment unit motor stator winding side is evenly arranged the stator department (25) of at least one set of contactless electromagnetic switch respectively, and each section
Unit motor stator winding is connect by contactless electromagnetic switch with power source bus (30) respectively；It is arranged on mover and is opened with electromagnetism
It closes stator department in parallel and is kept fixed the strip magnetism stick (26) in gap, which is continuous homogenizing bar, if by
Dry insulating bar (20) is consolidated with mover (18), and magnetism stick (26) is mobile with mover (18) and moves, when magnetism stick (26)
When positioned at corresponding position of stator, magnetism stick (26) sucks up the movement armature of corresponding electromagnetic switch stator department, acts armature band
The contact action of dynamic electromagnetic switch, connects circuit, gives the feeding electric energy of power source bus to corresponding stator winding；Work as magnetism stick
(26) when moving on to except corresponding stator winding range, magnetism stick (26) is detached from corresponding movement armature, acts armature in bullet
It is returned under the reaction of spring, corresponding contact is disconnected, stator winding power-off.
9. electromagnetic linear motor formula sectional power supply switching device according to claim 8, it is characterised in that: the nothing connects
Series connection degausser is arranged in the magnetic switch that gets an electric shock or series connection increases magnetic circuit or series-parallel increasing magnetic degausser；
The normally opened auxiliary contact of the contactless electromagnetic switch constitute contactless electromagnetic switch together with magnet exciting coil, field power supply
Series connection degausser；
The normally opened auxiliary contact of adjacent at least two contactless electromagnetic switch Cn-1, Cn+1 of n-th of contactless electromagnetic switch Cn are simultaneously
Connection, the series connection that contactless electromagnetic switch Cn is constituted together with contactless electromagnetic switch Cn normally closed auxiliary contact and field power supply increase magnetic
Circuit, wherein n is natural number；
The degausser increases that magnetic circuit and multiple groups are normally opened, normally closed auxiliary contact combine composition electromagnetic switch actuation in series and parallel
The series-parallel increasing magnetic degausser of degaussing after preceding increasing magnetic, actuation.
10. electromagnetic linear motor formula sectional power supply switching device according to claim 8, it is characterised in that: power source bus
It flanks at least one set of contactor with the two-way main contacts of normally-open normally-close, at least one set of contactless electromagnetic switch, unit motor
Stator winding cooperates Component units motor to be shorted dynamic brake protection circuit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510748318.2A CN105448603B (en) | 2015-11-06 | 2015-11-06 | A kind of contactless electromagnetic switch and electromagnetic linear motor formula sectional power supply switching device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510748318.2A CN105448603B (en) | 2015-11-06 | 2015-11-06 | A kind of contactless electromagnetic switch and electromagnetic linear motor formula sectional power supply switching device |
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| CN105448603A CN105448603A (en) | 2016-03-30 |
| CN105448603B true CN105448603B (en) | 2019-01-18 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110491735B (en) * | 2019-08-07 | 2021-09-07 | 广州株电交通设备有限公司 | Reed switch relay with protective cover |
| CN111711337B (en) * | 2020-07-22 | 2022-03-22 | 上海电机学院 | Linear motor and transportation system |
| CN115913051A (en) * | 2022-11-04 | 2023-04-04 | 广东金马游乐股份有限公司 | Linear motor driving system connected in series |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5994798A (en) * | 1998-02-26 | 1999-11-30 | Anorad Corporation | Closed-path linear motor |
| CN2653683Y (en) * | 2003-08-29 | 2004-11-03 | 刘明清 | Magnetic electric type contactor |
| CN201797429U (en) * | 2010-04-14 | 2011-04-13 | 陈胜民 | Electromagnetic driver |
| CN103420260B (en) * | 2013-07-12 | 2015-12-23 | 河南理工大学 | The divided stator segmentation permanent-magnetism linear motor of distributed power supply is adopted directly to drive elevator system |
| CN104733230B (en) * | 2015-04-10 | 2017-03-08 | 福州大学 | A kind of permanent magnet intelligent contactor of the ensured normality separating brake with the controlled counter-force of electromagnetism |
| CN205692774U (en) * | 2015-11-06 | 2016-11-16 | 河南理工大学 | A kind of contactless electromagnetic switch and electromagnetic linear motor formula sectional power supply switching device |
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