CN110211842A - A kind of efficient arc extinguishing relay - Google Patents
A kind of efficient arc extinguishing relay Download PDFInfo
- Publication number
- CN110211842A CN110211842A CN201910575047.3A CN201910575047A CN110211842A CN 110211842 A CN110211842 A CN 110211842A CN 201910575047 A CN201910575047 A CN 201910575047A CN 110211842 A CN110211842 A CN 110211842A
- Authority
- CN
- China
- Prior art keywords
- magnet steel
- magnetic isolation
- isolation plate
- arc extinguishing
- insulating boot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 64
- 239000010959 steel Substances 0.000 claims abstract description 64
- 238000002955 isolation Methods 0.000 claims abstract description 47
- 238000010891 electric arc Methods 0.000 abstract description 13
- 230000000171 quenching effect Effects 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 241001661355 Synapsis Species 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method 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
- H01H50/02—Bases; Casings; Covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
- H01H50/041—Details concerning assembly of relays
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H9/446—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using magnetisable elements associated with the contacts
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The object of the present invention is to provide a kind of arc quenching effect is more preferable, electric arc is not easy to beat after insulating boot inner wall rebound to the efficient arc extinguishing relay on sound contact.To achieve the above object, the present invention adopts the following technical scheme: a kind of efficient arc extinguishing relay, including outer housing, insulating boot and yoke plate are equipped in the outer housing, insulating boot and yoke plate constitute the chamber for accommodating movable contact and stationary contact, at least one set of sound contact sets are provided in the chamber, the interior side corresponding to sound contact sets described at least one of group of chamber is equipped with magnet steel and magnetic isolation plate, and magnet steel is between sound contact and magnetic isolation plate.
Description
Technical field
The present invention relates to a kind of high voltage direct current relays, and in particular to a kind of efficient arc extinguishing relay.
Background technique
Electric arc can be generated when the movable contact of high-voltage relay and stationary contact disjunction, electric arc will cause movable contact and connect with stationary contact
The corrosion of synapsis influences the service life of movable contact and stationary contact.To carry out arc extinguishing processing to electric arc, usually in sound contact
Outer circumferential places a pair of of magnet steel and carries out arc blow-out, but beats in sound contact there are still electric arc rebound so that sound contact endurance declines
Defect.Magnet steel is all located on the outside of insulating boot, in the case where relay1 case body does not increase, in order to carry out magnet steel
It places, insulation enclosure volume can be done smaller, and the contour structures of insulating boot will be increasingly complex, and the production for being not easy to insulating boot adds
Work, and insulating boot become smaller can make sound contact between insulating boot inner wall at a distance from reduce, electric arc be easy beats on insulating boot inner wall
And rebound to the components such as sound contact, movable contact spring, components in meeting Damage to insulation cover.
Summary of the invention
The object of the present invention is to provide a kind of arc quenching effect is more preferable, electric arc is not easy to beat after insulating boot inner wall rebound to sound
Efficient arc extinguishing relay on contact.
To achieve the above object, the present invention adopts the following technical scheme: a kind of efficient arc extinguishing relay, including outer housing,
Insulating boot and yoke plate are equipped in the outer housing, insulating boot and yoke plate constitute the chamber for accommodating movable contact and stationary contact
Room, at least one set of sound contact sets are provided in the chamber, correspond at least one of group in chamber described in sound contact sets
Side be equipped with magnet steel and magnetic isolation plate, magnet steel is between sound contact and magnetic isolation plate.
Magnetic isolation plate of the invention is for compressing magnet steel close to the magnetic field of sound contact sets side and reducing leakage field, so that sound
Contact sets influenced by magnet steel magnetic field it is bigger, to improve arc quenching effect；And magnetic isolation plate and magnet steel are all set in chamber, with after
In the case that electrical appliance shell shape size is constant, insulating boot can be done bigger as much as possible so that insulating boot inner circumferential wall with
Distance between sound contact is longer, beat electric arc can could in insulating boot inner circumferential wall by longer movement, with as far as possible
The energy of electric arc is eliminated on ground, improves arc quenching effect；Meanwhile magnet steel between sound contact at a distance from it is closer so that sound contact by
The influence in magnet steel magnetic field is bigger, to improve arc quenching effect.Wherein, the shroud-like structure that insulating boot can be constituted for insulating materials, can also
For the combination of slab structure made of insulating materials and enclosing shape structure.Wherein, when outer housing of the invention is cuboid, magnetic
Steel can do squarely, and magnetic isolation plate can be made into square plate shape；When outer housing is cylinder-shaped, magnet steel can be made into shoe, and magnetic isolation plate can also
To be made into shoe.
Preferably, the insulating boot includes enclosing part of the cross section in enclosing shape, shape in the enclosing part inner circumferential wall
At there is the first locating slot, the magnetic isolation plate is positioned partially or entirely in the first locating slot.
The first locating slot is formed in insulating boot inner circumferential wall in the case where guaranteeing insulating boot intensity, in order to magnetic isolation plate
Positioning, while reducing magnetic isolation plate and being formed by chamber shared space in insulating boot.
Preferably, the magnetic isolation plate face adjacent with magnet steel is bonded to each other.Above-mentioned setting to improve magnetism isolating effect, with into
One step is compressed magnetic field to increase the magnetic field strength at sound contact, while it is shared in chamber to reduce magnetic isolation plate and magnet steel
Space.
Preferably, the yoke plate is equipped with frame, the frame is formed with several protrusions upwardly extended, described convex
It rises to constitute and has the second recessing groove, the cross-sectional shape and the cross-sectional shape phase of magnet steel part outer rim of the second recessing groove groove face
Together, the magnet steel is limited between protrusion and magnetic isolation plate, the magnetic isolation plate be limited in magnet steel and insulating boot inner circumferential wall it
Between.Wherein, the protrusion on frame is used for positioning magnetic steel, in order to the placement of magnet steel.Magnet steel or magnet steel can be clamped by protrusion
Dispensing is fixed on the fixation that magnet steel is realized on frame.
Preferably, the protrusion includes the positioning protrusion C-shaped in cross section, the positioning protrusion is located at magnet steel circumferential direction
Outside, the positioning protrusion are formed with second recessing groove, and the second recessing groove opening is formed with open trough.Open trough
The magnet steel that is situated so as to be placed in the slot of positioning protrusion, the above-mentioned placement for being situated so as to magnet steel is fixed.
Preferably, the magnetic isolation plate width is greater than the width of magnet steel.Above-mentioned setting is imitated with reducing leakage field and improving every magnetic
Fruit, further to be compressed to magnetic field to increase the magnetic field strength at sound contact.
Preferably, the protrusion upper surface is located on the upside of the magnet steel upper surface.Above-mentioned setting is being insulated to avoid beating
The electric arc rebound in cover corner is beaten on magnet steel.
Preferably, the protrusion includes the lower convexity being supported on the downside of magnetic isolation plate and magnet steel, the lower convexity is formed with
It extends downwardly to accommodate the locating slot of magnetic isolation plate lower end.Lower convexity is supported magnet steel and magnetic isolation plate, does not need magnetic isolation plate
It is directly placed on yoke plate with magnet steel, to reduce consumptive material.Wherein, the setting of locating slot is for the positioning to magnetic isolation plate, so as to
It is assembled in the placement of magnetic isolation plate.
Preferably, the two groups of sound contact sets in left and right are equipped in the chamber, and corresponding to each group of sound contact sets
Magnet steel and magnetic isolation plate are all set in chamber.All magnet steel and all magnetic isolation plates are all set in chamber, so that insulating boot
What can be done in the case where guaranteeing that outer housing shape size is inconvenient is bigger.
Preferably, the magnet steel and magnetic isolation plate intersect with the line of symmetry in left-right direction of sound contact sets.It is above-mentioned
It is arranged to improve the magnetic field strength at sound contact.
The present invention has the advantages that arc quenching effect is more preferable.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the invention；
Fig. 2 is to remove the structural schematic diagram after magnet steel and magnetic isolation plate in Fig. 1；
Fig. 3 is a kind of structural schematic diagram of the positioning protrusion and lower convexity on frame of the present invention.
Specific embodiment
Below according to the drawings and specific embodiments, the invention will be further described.
As shown in Fig. 1, Fig. 2, Fig. 3, a kind of efficient arc extinguishing relay, including outer housing 1, outer housing 1 is interior to be equipped with insulating boot 2
With yoke plate, insulating boot 2 and yoke plate 8 constitute the chamber for accommodating movable contact 3 and stationary contact, are equipped with two groups of sound in chamber
Contact sets, the side corresponding to the sound contact sets is equipped with magnet steel 4 and magnetic isolation plate 5, and magnet steel 4 and magnetic isolation plate 5 are all set in
In chamber.Wherein, 5 width of magnetic isolation plate is greater than the width of magnet steel 4, and magnet steel 4 and magnetic isolation plate 5 are with sound contact sets along right and left
To line of symmetry intersection.
Insulating boot 2 includes enclosing part 21 of the cross section in enclosing shape, is formed with the first positioning in 21 inner circumferential wall of enclosing part
Slot 22,5 part of magnetic isolation plate are located in the first locating slot 22.
Yoke plate 8 is equipped with frame 6, and frame 6 is formed with several protrusions upwardly extended, and magnet steel 4 is located in several protrusions
Between 21 inner circumferential wall of enclosing part of insulating boot 2, magnet steel 4 is limited between protrusion and magnetic isolation plate 5, and magnetic isolation plate 5 is limited
Between magnet steel 4 and 21 inner circumferential wall of enclosing part of insulating boot 2.Wherein, the face adjacent with magnet steel 4 of magnetic isolation plate 5 is bonded to each other.
Protrusion, which is constituted, the second recessing groove 71, cross-sectional shape and the 4 part outer rim of magnet steel of 71 groove face of the second recessing groove
Cross-sectional shape is identical.Protrusion includes the positioning protrusion 72 C-shaped in cross section, and positioning protrusion 72 is located at 4 outer circumferential of magnet steel,
Positioning protrusion 72 is formed with second recessing groove 71, and 71 opening of the second recessing groove is formed with open trough 73.Protrusion further includes
It is supported on the lower convexity 74 of 4 downside of magnetic isolation plate 5 and magnet steel, lower convexity 74, which is formed with, to be extended downwardly to accommodate 5 lower end of magnetic isolation plate
Locating slot 75.Wherein, 72 upper surface of positioning protrusion is located on the upside of 4 upper surface of magnet steel.
The magnet steel and magnetic isolation plate of the present embodiment are all set in the chamber that insulating boot is constituted, in guard relay outer housing
In the case that shape size is constant, insulating boot can be done bigger as much as possible, so that between insulating boot inner circumferential wall and sound contact
Distance it is longer, beat electric arc can could in insulating boot inner circumferential wall by longer movement, to eliminate electric arc as much as possible
Energy, improve arc quenching effect.Magnet steel between sound contact at a distance from it is closer so that sound contact is influenced more by magnet steel magnetic field
Greatly, to improve arc quenching effect.The present invention has arc quenching effect more preferable, and electric arc is not easy to beat rebound to the sound after insulating boot inner wall and touches
Advantage on point.
Claims (10)
1. a kind of efficient arc extinguishing relay, it is characterised in that including outer housing, insulating boot and yoke plate are equipped in the outer housing,
Insulating boot and yoke plate constitute the chamber for accommodating movable contact and stationary contact, and at least one set of sound touching is provided in the chamber
Point group, the interior side corresponding to sound contact sets described at least one of group of chamber are equipped with magnet steel and magnetic isolation plate, and magnet steel is located at dynamic
Between stationary contact and magnetic isolation plate.
2. a kind of efficient arc extinguishing relay according to claim 1, it is characterised in that the insulating boot includes that cross section is in
The enclosing part of shape is enclosed, is formed with the first locating slot in the enclosing part inner circumferential wall, the magnetic isolation plate is positioned partially or entirely in
In first locating slot.
3. a kind of efficient arc extinguishing relay according to claim 1, it is characterised in that the magnetic isolation plate is adjacent with magnet steel
Face is bonded to each other.
4. a kind of efficient arc extinguishing relay according to claim 1, it is characterised in that the yoke plate is equipped with frame, institute
It states frame and is formed with several protrusions upwardly extended, the protrusion, which is constituted, the second recessing groove, the second recessing groove groove face
Cross-sectional shape is identical as the cross-sectional shape of magnet steel part outer rim, and the magnet steel is limited between protrusion and magnetic isolation plate, institute
Magnetic isolation plate is stated to be limited between magnet steel and insulating boot inner circumferential wall.
5. a kind of efficient arc extinguishing relay according to claim 4, it is characterised in that it is in C that the protrusion, which includes in cross section,
The positioning protrusion of shape, the positioning protrusion are located at magnet steel outer circumferential, and the positioning protrusion is formed with second recessing groove, institute
It states the second recessing groove opening and is formed with open trough.
6. a kind of efficient arc extinguishing relay according to claim 1, it is characterised in that the magnetic isolation plate width is greater than magnet steel
Width.
7. a kind of efficient arc extinguishing relay according to claim 4, it is characterised in that the protrusion upper surface is located at described
On the upside of magnet steel upper surface.
8. a kind of efficient arc extinguishing relay according to claim 4, it is characterised in that the protrusion includes being supported on every magnetic
Lower convexity on the downside of plate and magnet steel, the lower convexity, which is formed with, to be extended downwardly to accommodate the locating slot of magnetic isolation plate lower end.
9. a kind of efficient arc extinguishing relay according to claim 1, it is characterised in that be equipped with two groups of left and right in the chamber
Sound contact sets are all set in chamber with magnet steel corresponding to each group of sound contact sets and magnetic isolation plate.
10. a kind of efficient arc extinguishing relay according to claim 9, it is characterised in that the magnet steel and magnetic isolation plate with it is dynamic
The line of symmetry intersection in left-right direction of stationary contact group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910575047.3A CN110211842A (en) | 2019-06-28 | 2019-06-28 | A kind of efficient arc extinguishing relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910575047.3A CN110211842A (en) | 2019-06-28 | 2019-06-28 | A kind of efficient arc extinguishing relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110211842A true CN110211842A (en) | 2019-09-06 |
Family
ID=67795288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910575047.3A Pending CN110211842A (en) | 2019-06-28 | 2019-06-28 | A kind of efficient arc extinguishing relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110211842A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2544410Y (en) * | 2002-05-29 | 2003-04-09 | 宁波福特继电器有限公司 | Ultrasmall high sensitivity relay |
| CN1697110A (en) * | 2005-05-19 | 2005-11-16 | 厦门宏发电声有限公司 | Magnetic circuit system of electromagnetic relay, and application |
| CN206250125U (en) * | 2016-12-05 | 2017-06-13 | 浙江英洛华新能源科技有限公司 | HVDC relay magnetic steel fixed structure |
| CN109920700A (en) * | 2018-12-31 | 2019-06-21 | 浙江英洛华新能源科技有限公司 | High magnetic force relay |
| CN209785846U (en) * | 2019-06-28 | 2019-12-13 | 浙江英洛华新能源科技有限公司 | high-efficient arc extinguishing relay |
-
2019
- 2019-06-28 CN CN201910575047.3A patent/CN110211842A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2544410Y (en) * | 2002-05-29 | 2003-04-09 | 宁波福特继电器有限公司 | Ultrasmall high sensitivity relay |
| CN1697110A (en) * | 2005-05-19 | 2005-11-16 | 厦门宏发电声有限公司 | Magnetic circuit system of electromagnetic relay, and application |
| CN206250125U (en) * | 2016-12-05 | 2017-06-13 | 浙江英洛华新能源科技有限公司 | HVDC relay magnetic steel fixed structure |
| CN109920700A (en) * | 2018-12-31 | 2019-06-21 | 浙江英洛华新能源科技有限公司 | High magnetic force relay |
| CN209785846U (en) * | 2019-06-28 | 2019-12-13 | 浙江英洛华新能源科技有限公司 | high-efficient arc extinguishing relay |
Non-Patent Citations (1)
| Title |
|---|
| 蔡 文 智: "并联型非对称磁路的永磁继电器设计研究", 电器与能效管理技术 * |
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