CN109243924A - Small size high voltage direct current relay and the method for eliminating electromagnetic relay electric arc - Google Patents
Small size high voltage direct current relay and the method for eliminating electromagnetic relay electric arc Download PDFInfo
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- CN109243924A CN109243924A CN201811146669.6A CN201811146669A CN109243924A CN 109243924 A CN109243924 A CN 109243924A CN 201811146669 A CN201811146669 A CN 201811146669A CN 109243924 A CN109243924 A CN 109243924A
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- 238000010891 electric arc Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000000712 assembly Effects 0.000 claims abstract description 22
- 238000000429 assembly Methods 0.000 claims abstract description 22
- 230000003068 static effect Effects 0.000 claims description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 235000014676 Phragmites communis Nutrition 0.000 claims description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 2
- 210000000988 bone and bone Anatomy 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
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- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
- H01H50/38—Part of main magnetic circuit shaped to suppress arcing between the contacts of the relay
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a kind of small size high voltage direct current relays, the shell that insulate including one and it is set in the housing the electromagnetic assembly and terminal assemblies in portion, terminal assemblies are nearby additionally provided with field generator for magnetic, the magnetic field that field generator for magnetic intersects vertically for generating a current direction between movable contact and stationary contact.The small size high voltage direct current relay, field generator for magnetic is arranged near terminal assemblies, plays the role of arc blow-out to relay.The electric arc that relay generates shifts under magnetic fields, thus elongating arc, plays arc-suppression function, and face terminals are distributed upper layer and lower layer, when application outside can connect and make contactor gap double together, be conducive to current interruption.The distribution mode of two pairs of face terminals, can effective elongating arc, avoid electric arc from being shorted on load circuit, at the same also may make the safety clearance of product, creepage distance maximize, but also the height of product is as low as possible.The invention discloses a kind of methods for eliminating electromagnetic relay electric arc.
Description
Technical field
The present invention relates to relay, in particular to a kind of small size high voltage direct current relay and elimination electromagnetic relay electric arc
Method.
Background technique
Since relay has unique electrical, physical characteristic, the high insulation resistance and on-state of off-state in control circuit
Low on-resistance so that other any electronic components can not in contrast, in addition relay standardization level is high, versatility
Well, the advantages that circuit can be simplified, so relay is widely used in space flight, aviation, Military Electronic Equipment, information industry and its people
In economic various electronic equipments.With science and technology rapid development, usage amount of the relay in programmed communication equipment also into
One step increases, so, how to guarantee the reliability of relay, meet the reliability of machine system, becomes focus concerned by people.
Relay can usually generate electric arc when cutting off circuit, this is inevitable.Usually reach 10V in contact voltage
More than, electric current will generate electric arc in 200mA or more, relay cutting electric current.
When relay closure contact just separates, gap is minimum, and circuit voltage almost all is added between contact, is formed very strong
Electric field, cathode free electron evolution marches on towards anode, become forceful electric power Flied emission.Electronics high-speed motion, collision neutral gas point
Son makes its ionization.For cation to cathode motion, hitting cathode surface increases its temperature after ionization, and then forms thermoelectron hair
It penetrates, and participates in ionization by collision again, therefore a large amount of charged particles can be formed between electrode, gaseous conduction is made to form red-hot electronics
Stream is electric arc.
Electric arc is a kind of form of gas discharge.Gas discharge is divided into self-maintained discharge and two class of non-self-maintained discharge, electric arc category
Arc discharge in gas self-maintained discharge.Test proves that, when cut-offfing in an atmosphere or sealing voltage is more than 10V, electric current is more than
When the circuit of 0.5A, an extreme temperatures can be generated in contact gap (or arc gap), the gas that brightness is extremely strong and energy is conductive,
Referred to as electric arc.Due to the high temperature and strong light of electric arc, it can be widely applied to welding, melting, chemical synthesis, intense light source and space
Technology etc..For Electric device with a contact, when occurring mainly with contact disconnecting circuit due to electric arc, high temperature is by scaling loss contact
And insulate, phase fault, electric appliance explosion are even caused under serious conditions, to lead to fire, jeopardize personnel and the safety of equipment.
And relay and electromagnetic radiation can be externally carried out during generating electric arc, interference is generated to the equipment of surrounding.
Therefore, the spacing between relay movable contact and stationary contact wants sufficiently large, is greater than arc length, just can ensure that electric arc
It is pulled off extinguishing, and then eliminates the influence of electric arc.Fig. 1 show the length of electric arc under different voltages electric current.By that can be seen in figure
Out, when voltage is higher than 100V and electric current is greater than 2A, the length of electric arc has had reached 2cm, that is to say, that wants relay
Movable contact and the distance between stationary contact be designed as 2cm or more just and can guarantee the safe handling of relay.This results in height
The outer dimension of the relay of straightening stream is usually quite greatly, it is difficult to be made in the limited occasion of the installation spaces such as electric car
With.
Summary of the invention
The object of the present invention is to provide a kind of small size high voltage direct current relays.It is a further object to provide one
The method that kind elongates relay electric-arc.
According to an aspect of the invention, there is provided a kind of small size high voltage direct current relay, the shell to insulate including one
Body and the electromagnetic assembly and terminal assemblies for being set in the housing portion, terminal assemblies, including at least a pair of of moved end and static terminal, it is quiet
Terminal is equipped at least one stationary contact, and moved end has at least one movable contact, and movable contact is corresponding with stationary contact；
Terminal assemblies are nearby additionally provided with field generator for magnetic, and field generator for magnetic between movable contact and stationary contact for producing
The perpendicular magnetic field of the moving direction of a raw direction and movable contact.
Using the small size high voltage direct current relay of above technical scheme, magnetic field is set near terminal assemblies and is filled
It sets, plays the role of arc blow-out to relay.Electric arc in magnetic field since Lorentz force shifts, elongating arc, so as to
Accelerate burying in oblivion for electric arc.It is possible thereby to greatly reduce the linear distance between relay movable contact and stationary contact.Outside relay
Shape size can also be substantially reduced, be suitble to the limited occasion of installation space carry out using.Using the small ruler of above technical scheme
Very little high voltage direct current relay, can not only carry the high load of 600VDC13A, and volume is extra small, and height is only 16mm.
Further, field generator for magnetic includes electromagnet or permanent magnet.
Specifically, electromagnet or permanent magnet are arranged in pairs above and below contact, pairs of electromagnet or
The shift motion region of movable contact, and the shifting of the magnetic line of force and movable contact in magnetic field is completely covered in the magnetic field generated between person's permanent magnet
Dynamic direction is vertical.The arc blowing function in magnetic field is best as a result,.
Further, electromagnetic assembly is mainly made of the coil of skeleton and skeleton periphery, and coil is coiled to form by enameled wire,
Skeletal internal is equipped with iron core, the setting direction of iron core its internal magnetic line of force direction after coil energization；Skeleton one end is equipped with one
A armature, one end of armature face iron core, armature are in contact with a hook；
Terminal assemblies include that at least a pair of of moved end and static terminal, static terminal are connected with the side of external circuit, static side
Son is equipped at least one stationary contact, and the sub- one end in moved end is connected with the other side of external circuit, and the other end is fixed with one and moves
Reed, movable contact spring is elastic conduction sheet metal, and movable contact spring has at least one movable contact, and movable contact is corresponding with stationary contact,
The elastic reaction of movable contact spring separates movable contact with stationary contact, and hook one end is connected with armature, and the other end is fixed with movable contact spring
Connection；
When coil is powered, the magnetic attraction armature that iron core generates is close to iron core, and the push jack being connected on armature moves therewith
Dynamic, push jack drives movable contact spring that the elasticity of its own is overcome to be moved, so that movable contact be made to contact with each other with stationary contact, and then makes
It is connected between load and power supply.
Further, terminal assemblies include multipair moved end and static terminal, and the movable contact of multiple moved end is respectively along vertical
In the mutually isolated setting in the direction of the moving direction of movable contact, the movable contact one of the stationary contact of multiple static terminals and multiple moved end
One is corresponding.By movable contact and stationary contact according to layering by way of be configured, every a pair of moved end and static terminal can be with
In the external series connection realized between different groups of contacts, so that contactor gap is double., it is ensured that between movable contact and stationary contact
Spacing, be conducive to current interruption, while the outer dimension of relay can also be made smaller.
Further, terminal assemblies include that two pairs of moved end and static terminal, static terminal are connected with the side of external circuit,
The sub- one end in moved end is connected with the other side of external circuit, and a stationary contact, the movable contact other end point are respectively equipped on static terminal
Be not fixed with a movable contact spring, the setting direction of two movable contact springs is parallel to each other, the elastic reaction of movable contact spring make movable contact with it is quiet
Contact separation, the movable contact of two moved end is respectively along the mutually isolated setting in direction of the moving direction perpendicular to movable contact.
Further, every a pair of of moved end and static terminal are respectively used to one load of control；
Alternatively, two pairs of moved end and static terminal series connection are for controlling the same load.
Face terminals are distributed upper layer and lower layer as a result, when application outside can connect and make contactor gap double together, favorably
In current interruption.The distribution mode of two pairs of face terminals can effective elongating arc, avoid electric arc from being shorted on load circuit, while
The safety clearance of product, creepage distance can be made to maximize, but also the height of product is as low as possible.Magnet steel is respectively placed in
The upper and lower of face terminals, the magnetic direction of generation are conducive to electric arc utmostly to elongate, play the role of arc extinguishing.
Further, skeleton is fixedly connected with the casing by an insulating base, and insulating base is equipped with a push jack, push jack
Along insulating base parallel sliding, the side of push jack is connected with movable contact spring, and the other side is then connected with armature；
When coil is powered, the magnetic attraction armature that iron core generates is close to iron core, and push jack is driven to slide in parallel along insulating base
It is dynamic, and the elasticity for driving movable contact spring to overcome its own is moved, so that movable contact be made to contact with each other with stationary contact, and then makes to bear
It carries and is connected between power supply.
According to another aspect of the present invention, additionally provide it is a kind of eliminate electromagnetic relay electric arc method, electromagnetism after
One magnetic field intersected with the moving direction of movable contact is set between the movable contact and stationary contact of electric appliance.
Specifically, the shift motion region of movable contact, and the shifting of the magnetic line of force and movable contact in magnetic field is completely covered in magnetic field
Dynamic direction is vertical.
Detailed description of the invention
Fig. 1 is the length curve figure of electric arc under different voltages electric current.
Fig. 2 is the structural schematic diagram of the small size high voltage direct current relay of one embodiment of the present invention.
Fig. 3 is the pin configuration schematic diagram of small size high voltage direct current relay shown in Fig. 2.
Fig. 4 is the explosive view of small size high voltage direct current relay shown in Fig. 2.
Fig. 5 is the structural schematic diagram of field generator for magnetic shown in Fig. 4.
Fig. 6 is the structural schematic diagram of terminal assemblies shown in Fig. 4.
Fig. 7 is the structural schematic diagram of insulating substrate shown in Fig. 4.
Specific embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
Fig. 2 to Fig. 7 schematically shows a kind of small size high voltage direct current relay of embodiment according to the present invention.
As shown, the device includes the shell 1 an of insulation and the electromagnetic assembly 2 and terminal assemblies 4 for being set in the housing portion.
Wherein, shell 1 is fastened by shell 11 and cover board 12.
Terminal assemblies 4 include two pairs of moved end and static terminal, and the respectively sub- 42a in moved end and static terminal 41a and moved end are sub
42b and static terminal 41b.
Moved end sub- 42a and static terminal 41a are for controlling a upper layer load, and moved end sub- 42b and static terminal 41b are for controlling
One lower layer's load.Upper layer load and lower layer's load Simultaneous Switching movement.
Static terminal (41a, 41b) is connected with the side of external circuit.
Moved end son one end (42a, 42b) is connected with the other side of external circuit.
A stationary contact 411 is respectively equipped on static terminal (41a, 41b)
422 other end of movable contact is respectively fixed with a movable contact spring 421.
The setting direction of two movable contact springs 421 is parallel to each other.
Movable contact spring 421 is elastic conduction sheet metal, and movable contact spring 421 has at least one movable contact 422.
Movable contact 422 is corresponding with stationary contact 411.
The elastic reaction of movable contact spring 421 separates movable contact 422 with stationary contact 411.
The movable contact 422 of two moved end (42a, 42b) is respectively along the direction phase of the moving direction perpendicular to movable contact 422
Mutually isolation setting.
In other examples, terminal assemblies 4 can also include multipair moved end and static terminal, and multiple moved end move
Respectively along the mutually isolated setting in direction of the moving direction perpendicular to movable contact, the stationary contact of multiple static terminals is moved with multiple for contact
The movable contact of terminal corresponds.
Every a pair of moved end and static terminal are respectively used to one load of control；
Alternatively, two pairs of moved end and static terminal series connection are together for controlling the same load.
Terminal assemblies 4 are nearby additionally provided with field generator for magnetic.
Field generator for magnetic between movable contact 422 and stationary contact 411 for generating the movement in a direction and movable contact
The magnetic field of direction intersection.
In the present embodiment, field generator for magnetic is by 5 structure of a pair of of magnet steel that is set to above and below stationary contact 411
At.
Magnet steel 5 is permanent magnet.
The shift motion region of movable contact 422, and the magnetic line of force in magnetic field is completely covered in the magnetic field generated between two magnet steel 5
It is vertical with the moving direction of movable contact 422.
In other examples, field generator for magnetic can also include be arranged in pairs in stationary contact 411 top and
Lower section electromagnet or other permanent magnets.
Electromagnetic assembly 2 is mainly made of the coil 22 of 21 periphery of skeleton 21 and skeleton.
Coil 22 is coiled to form by enameled wire, and is electrically connected by two pins 221 with control terminal.
Iron core 23 is equipped with inside skeleton 21.
The setting direction of iron core 23 its internal magnetic line of force direction after the energization of coil 22.
21 one end of skeleton is equipped with an armature 24.
One end of 24 face iron core 23 of armature.
Armature 24 is connected with a hook 25；
In the present embodiment, skeleton 21 is fixedly connected by an insulating base 3 with shell 1.
Insulating base 3 is equipped with a push jack 31.
Push jack 31 is along 3 parallel sliding of insulating base.
The side of push jack 31 is connected with movable contact spring 421, and the other side is then connected with hook 25.
Electromagnetic assembly 2 further includes a yoke 26.
The one end opposite with armature 24 from iron core 23 of yoke 26 extends outside coil 22 to armature 24,26 top of yoke with
Armature 24 is connected.
Iron core 23, armature 24 and yoke 26 can form an annular field circuit.
In the present embodiment, face terminals are distributed upper layer and lower layer, when application outside can connect and make contactor gap together
It is double, be conducive to current interruption.The distribution mode of two pairs of face terminals can effective elongating arc, avoid electric arc short on load circuit
It connects, while it is also possible that the safety clearance of product, creepage distance maximize, but also the height of product is as low as possible.Magnet steel
It is respectively placed in the upper and lower of face terminals, the magnetic direction of generation is conducive to electric arc utmostly to elongate, and plays arc extinguishing work
With.
The design (calculated) load of small size high voltage direct current relay in the present embodiment is 600VDC13A, is highly 16mm.
The course of work of small size high voltage direct current relay in the present embodiment are as follows:
(1) when coil 22 is powered, the magnetic attraction armature 24 that iron core 23 generates is close to iron core 23, drives push jack 31 along exhausted
3 parallel sliding of edge pedestal, and the elasticity for driving movable contact spring 421 to overcome its own is moved, to make movable contact 422 and stationary contact
Point 411 contacts with each other, and then makes to be connected between load and power supply.
(2) when coil 22 powers off, the magnetic disappearance that iron core 23 generates, movable contact spring 421 is under the action of the elasticity of its own
Reverse movement disconnects movable contact 422 and stationary contact 411, meanwhile, it drives push jack 31 and armature to reset by hook 25, moves touching
The electric arc that point 422 generates when disconnecting with stationary contact 411 is in the magnetic field that magnet steel 5 is formed since Lorentz force shifts.
Using the small size high voltage direct current relay of above technical scheme, magnetic field is set near terminal assemblies and is filled
It sets, plays the role of arc blow-out to relay.Relay generate electric arc in magnetic field since Lorentz force shifts, so as to
To accelerate the length of electric arc buried in oblivion and then shorten electric arc.It is possible thereby to greatly reduce between relay movable contact and stationary contact
Linear distance.The outer dimension of relay can also be substantially reduced, be suitble to the limited occasion of the installation spaces such as electric car into
It exercises and uses.Using the small size high voltage direct current relay of above technical scheme, the high load of 600VDC12A can not only be carried,
And volume is extra small, and height is only 16mm.
It further include a kind of elimination electromagnetic relay electric arc based on the above small size high voltage direct current relay, in the present embodiment
Method, core element are, the mobile side of one with movable contact are arranged between the movable contact and stationary contact of electromagnetic relay
To the magnetic field of intersection.
Specifically, magnetic field is made to be completely covered the shift motion region of movable contact, and the magnetic line of force in magnetic field and movable contact
Moving direction is vertical.
The principle of this method is that Lorentz force effect electric arc elongates in magnetic field using electric arc, and arc energy is not enough to tie up
It holds, to play burying in oblivion for electric arc.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.
Claims (10)
1. small size high voltage direct current relay, which is characterized in that including one insulate shell and be disposed in the housing portion
Electromagnetic assembly and terminal assemblies, the terminal assemblies include that at least a pair of of moved end and static terminal, the static terminal are equipped with
At least one stationary contact, moved end have at least one movable contact, and the movable contact is corresponding with the stationary contact；
The terminal assemblies are nearby additionally provided with field generator for magnetic, and the field generator for magnetic is used in the movable contact and stationary contact
A direction is generated between point and the sound terminal current moves towards perpendicular magnetic field.
2. small size high voltage direct current relay according to claim 1, which is characterized in that the field generator for magnetic can be with
It is electromagnet or permanent magnet.
3. small size high voltage direct current relay according to claim 2, which is characterized in that the electromagnet or it is described forever
Magnet is arranged in pairs above and below the contact, is generated between the pairs of electromagnet or the permanent magnet
The shift motion region of the movable contact, and the moving direction of the magnetic line of force in the magnetic field and the movable contact is completely covered in magnetic field
Vertically.
4. small size high voltage direct current relay according to claim 1, which is characterized in that the electromagnetic assembly is mainly by bone
Frame and the coil of skeleton periphery composition, the coil are coiled to form by enameled wire, and the skeletal internal is equipped with iron core, described
The setting direction of iron core its internal magnetic line of force direction, described skeleton one end after coil energization are equipped with an armature, side
Side is equipped with yoke, one end of iron core described in the armature face, and the armature is in contact with a hook；
The terminal assemblies include that at least a pair of of moved end and static terminal, the static terminal are connected with the side of external circuit,
The static terminal is equipped at least one stationary contact, and described sub- one end in moved end is connected with the other side of external circuit, the other end
It is fixed with a movable contact spring, the movable contact spring is elastic conduction sheet metal, and the movable contact spring has at least one movable contact, institute
It is corresponding with the stationary contact to state movable contact, the movable contact spring and armature residual gap place a push jack, work of the movable contact spring in elastic force
Separate the movable contact with the stationary contact, described hook one end is in contact with the armature, and the other end is moved with described
Reed is fixedly connected；
When the coil is powered, armature described in the magnetic attraction that the iron core generates is close to the iron core, drives on armature
Push jack moves, and the elasticity that the push jack drives the movable contact spring to overcome its own is moved, to make the movable contact
It contacts with each other with the stationary contact, and then makes to be connected between load and power supply.
5. small size high voltage direct current relay according to claim 4, which is characterized in that the terminal assemblies include multipair
Moved end and the static terminal, the movable contact of multiple moved end is respectively along the moving direction perpendicular to the movable contact
The mutually isolated setting in direction, the movable contact one-to-one correspondence of the stationary contact of multiple static terminals and multiple moved end sons, institute
It states moved end and is respectively provided with the movable contact spring, and the movable contact spring has at least one movable contact, the movable contact spring is set
Direction is set to be parallel to each other.
6. small size high voltage direct current relay according to claim 5, which is characterized in that the terminal assemblies include two pairs
Moved end and static terminal, static terminal are connected with the side of external circuit, the other side of moved end sub- one end and external circuit
It is connected, a stationary contact is respectively equipped on static terminal, the movable contact other end is respectively fixed with a movable contact spring, two movable contact springs
Setting direction be parallel to each other, the elastic reaction of movable contact spring separates movable contact with stationary contact, the movable contact of two moved end point
Not along the mutually isolated setting in direction of the moving direction perpendicular to movable contact.
7. small size high voltage direct current relay according to claim 6, which is characterized in that every a pair moved end and quiet
Terminal is respectively used to one load of control；
Alternatively, two pairs of moved end and static terminal series connection are for controlling the same load.
8. small size high voltage direct current relay according to claim 4, which is characterized in that the skeleton passes through an insulation
Pedestal is fixedly connected with the shell, is equipped with a push jack in movable contact spring and armature residual gap, the push jack is flat along the insulating base
Row sliding, the side of the push jack are connected with the movable contact spring, and the other side is then connected with the armature；
When the coil is powered, the magnetic force that the iron core generates attracts the armature close to the iron core, and the push jack is along institute
Insulating base parallel sliding is stated, the elasticity that the push jack drives the movable contact spring to overcome its own is moved, to make described
Movable contact contacts with each other with the stationary contact, and then makes to be connected between load and power supply.
9. it is a kind of eliminate electromagnetic relay electric arc method, which is characterized in that electromagnetic relay movable contact and stationary contact it
Between be arranged a magnetic field perpendicular with the moving direction of the movable contact.
10. the method according to claim 9 for eliminating electromagnetic relay electric arc, which is characterized in that cover completely in the magnetic field
The shift motion region of the movable contact is covered, and the magnetic line of force in the magnetic field is vertical with the moving direction of the movable contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811146669.6A CN109243924A (en) | 2018-09-29 | 2018-09-29 | Small size high voltage direct current relay and the method for eliminating electromagnetic relay electric arc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811146669.6A CN109243924A (en) | 2018-09-29 | 2018-09-29 | Small size high voltage direct current relay and the method for eliminating electromagnetic relay electric arc |
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| Publication Number | Publication Date |
|---|---|
| CN109243924A true CN109243924A (en) | 2019-01-18 |
Family
ID=65055387
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811146669.6A Pending CN109243924A (en) | 2018-09-29 | 2018-09-29 | Small size high voltage direct current relay and the method for eliminating electromagnetic relay electric arc |
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| CN (1) | CN109243924A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109920704A (en) * | 2019-03-28 | 2019-06-21 | 浙江英洛华新能源科技有限公司 | Anti- Lorentz force relay |
| CN109935499A (en) * | 2019-04-26 | 2019-06-25 | 上海立新电器控制设备有限公司 | A kind of contact assembly and the towing vehicle DC. current electromagnetic contactor using it |
| WO2021027008A1 (en) * | 2019-08-09 | 2021-02-18 | Techtronic Cordless Gp | Terminal and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109920704A (en) * | 2019-03-28 | 2019-06-21 | 浙江英洛华新能源科技有限公司 | Anti- Lorentz force relay |
| CN109935499A (en) * | 2019-04-26 | 2019-06-25 | 上海立新电器控制设备有限公司 | A kind of contact assembly and the towing vehicle DC. current electromagnetic contactor using it |
| WO2021027008A1 (en) * | 2019-08-09 | 2021-02-18 | Techtronic Cordless Gp | Terminal and method |
| CN114097148A (en) * | 2019-08-09 | 2022-02-25 | 创科无线普通合伙 | Terminal and method |
| EP4010950A4 (en) * | 2019-08-09 | 2023-10-18 | Techtronic Cordless GP | Terminal and method |
| CN114097148B (en) * | 2019-08-09 | 2024-02-23 | 创科无线普通合伙 | Terminal and method |
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