CN206758316U - The electromagnetic relay of high pressure resistant large current load - Google Patents
The electromagnetic relay of high pressure resistant large current load Download PDFInfo
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- CN206758316U CN206758316U CN201720454573.0U CN201720454573U CN206758316U CN 206758316 U CN206758316 U CN 206758316U CN 201720454573 U CN201720454573 U CN 201720454573U CN 206758316 U CN206758316 U CN 206758316U
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Abstract
The utility model discloses a kind of electromagnetic relay of high pressure resistant large current load, including two movable contacts, bridge at the movable contact spring of two movable contacts and two stationary contacts of adaptation corresponding with two movable contacts, and one of stationary contact is set to electric current inflow, another stationary contact is set to electric current outflow, and the line in gap of the caused electric arc along two pairs of contacts splashes laterally making two contacts；Be respectively equipped with the outside of the line in the gap of two pairs of contacts one be used for stopping corresponding to gap of the electric arc along two pairs of contacts line fly out in outward direction first lead arcs, first leads arcs is made up of conductive metal material, and first leads arcs and be wired to angularly disposed so that the electric arc being blocked can be along the first preset striking direction guiding movement for leading arcs relative to the gap of two pairs of contacts.The utility model can meet the load for cut-offfing high voltage, high current, and and can is effectively prevented from electric arc burn plastics and reduces arc energy, but also can be suitably used for AC and DC load.
Description
Technical field
Relay technical field is the utility model is related to, more particularly to a kind of electromagnetism relay of high pressure resistant large current load
Device.
Background technology
With developing rapidly for New Energy Industry, higher requirement, traditional 220VAC are proposed to the power of power distribution circuit
~below the 400VAC/50A demand for development that can not have met society with electrical power.Therefore, exploitation rated voltage is more than
400VAC, high-power magnetic relay of the electric current more than 50A are following demands for development.
But after relay disjunction load voltage reaches more than 400VAC, and breaking current reaches more than 50A, relay
The electric arc of very high energies can be produced between device contact, the plastics around contact of easily burning cause insulation degradation；Moreover, above-mentioned negative
Under load, because arc energy is extremely strong, voltage recovery rate is fast, after zero passage is loaded, is still easy to that arc reignition occurs
Phenomenon, make relay can not such as 220VAC systems normal voltage zero-acrross ing moment extinguish electric arc.Therefore, Most current
High power relay can not meet the load for cut-offfing high voltage, high current.
In order to reduce electric arc burn plastics and effectively extinguish electric arc, prior art mainly employs following several ways and come in fact
It is existing：
When stopped using ceramics and cool down electric arc, as disclosed by Chinese patent CN106098479A, this relay
It is to block electric arc using ceramics, avoids electric arc burn plastics.This relay can only obstruct electric arc not towards the direction splash of plastics,
Electric arc can not be divided into multistage short arc, can not pilot arc burnt towards prescribed direction, thus also just can not fundamentally reduce electricity
The energy of arc, and electric arc radiating is slow, therefore, though avoiding the electric arc burn plastics from having certain effect, reduce arc energy,
Avoid alternating current arc restrike on it is ineffective.
Second, magnetic quenching, as disclosed by Chinese patent CN102306572A, this relay is to use magnetic field arc blow-out
To separate high voltage direct current.This relay is elongated using permanent magnetism arc blow-out and is changed electric arc direction, so as to extinguish electric arc.But by
In introducing permanent magnetism arc blow-out, after permanent magnet installation and direction are fixed, its N pole and S poles are fixed, when disjunction AC load
When, because the sense of current is alternation, the direction that electric arc can be caused to be elongated is also unfixed, therefore, to the arc extinguishing of exchange
Poor effect, or even side effect can be produced.
Third, the potsherd cooling electric arc of magnetic blow-out electric arc+insulation, as disclosed by Chinese patent CN103985604A A, this
Kind relay is to be elongated using permanent magnetism arc blow-out and changed electric arc direction, stops cooling electric arc using the potsherd of insulation.This
The basic principle of kind arc quenching method is " elongating arc+cooling electric arc ", has certain effect for extinguishing electric arc.But similarly, by
It is very poor to the arc quenching effect of AC load in introducing permanent magnetism arc blow-out.It is not suitable for although disclosed technical scheme is not specified
AC load, but in practical application, because permanent magnet has been firmly fixed, its N, S direction is fixed, it is impossible to any adjustment
N, S directions, therefore, for the AC load of AC load, particularly more than 400VAC voltages, electric arc direction mistake is inevitably resulted in
Disorderly, arc quenching effect is bad or even the phenomenon for burning out part occurs；Further, since using the potsherd of insulation, can only obstruct
Electric arc, and can not pilot arc direction, cooling effect can only be played to electric arc, and multistage short arc can not be formed, fail really to drop
Low arc energy.
Utility model content
The purpose of this utility model is the deficiency for overcoming prior art, there is provided a kind of electromagnetism of high pressure resistant large current load
Relay, by the improvement to arc extinguishing structure, the load for cut-offfing high voltage, high current can be met, and can is effectively prevented from electricity
Arcing hinders plastics and reduces arc energy, but also can be suitably used for AC and DC load.
Technical scheme is used by the utility model solves its technical problem：A kind of electromagnetism of high pressure resistant large current load
Relay, including two movable contacts, bridge at two movable contacts movable contact spring and two of adaptation corresponding with two movable contacts it is quiet
Contact, and one of stationary contact is set to electric current inflow, another stationary contact is set to electric current outflow, produced making two contacts
The line in gap of the electric arc along two pairs of contacts splash laterally；It is respectively equipped with the outside of the line in the gap of two pairs of contacts
One be used for stopping corresponding to gap of the electric arc along two pairs of contacts line fly out in outward direction first lead arcs, it is described
First leads arcs is made up of conductive metal material, and first to lead arcs oblique relative to being wired to for the gap of two pairs of contacts
Set so that the electric arc being blocked can be along the first preset striking direction guiding movement for leading arcs.
Described first leads arcs and contact loop mutually insulated, and described first one end for leading arcs is fixed on away from stationary contact
Side, first leads the other ends of arcs is extended up to close to the position of stationary contact, so that institute from bearing to stationary contact direction
It is the direction for facing away from stationary contact to state preset striking direction.
One second, which is further respectively had, on the outside of the line in the gap of two pairs of contacts leads arcs；Described second leads arcs
It is made up of conductive metal material, described second leads arcs and contact loop mutually insulated, and described second leads arcs and first
Arcs also mutually insulated is led, described second one end for leading arcs is fixed on away from the side of stationary contact, and second leads the another of arcs
Hold from bearing to contactor gap direction and extend up to position close to movable contact, so that first leads arcs and second and lead arcs and enclose
Arc passage is led into one, it is the direction for facing away from stationary contact to make the preset striking direction.
Described first, which leads the other end of arcs and second, leads the distance between other end of arcs size no more than between contact
The size of gap, so that caused electric arc forms the short arc of very multi-stage series between contact, and then reduce arc voltage and electric arc
Energy.
Described first, which leads one end bearing of arcs and second, leads the distance between one end bearing of arcs size and is more than
First, which leads the other end of arcs and second, leads the distance between other end of arcs size, so that the arc passage of leading is that opening is small
Inboard big flared structure.
Described second leads the kink that is provided with of the other end of arcs, and second, which leads the end of the other end of arcs and first, leads arc
The other end of piece is almost parallel.
At least one 3rd, which is further respectively had, on the outside of the line in the gap of two pairs of contacts leads arcs；Described 3rd leads
Arcs are made up of conductive metal material, and the described 3rd leads arcs and contact loop mutually insulated, the described 3rd lead arcs with
First leads arcs, second leads arcs also mutually insulated, and the described 3rd, which leads arcs, is located at first and leads arcs and second and lead between arcs
Or first lead arcs and second and lead outside between arcs.
The electromagnetic relay also include be used for install stationary contact and be the base being made by plastic material, it is described
First leads arcs or also leads arcs including second or also lead arcs including the 3rd and be separately fixed on base.
Compared with prior art, the beneficial effects of the utility model are：
The utility model be respectively equipped with the outside of the line of two pairs of contacts it is at least one be used for stop corresponding electric arc
Arcs are led along what the line of two pairs of contacts flew out in outward direction, and leads arcs and is made up of conductive metal material, lead arc
Piece is wired to angularly disposed so that the electric arc being blocked can be along the preset striking direction for leading arcs relative to two pairs of contacts
Guiding movement.This structure of the present utility model, when the metal that the electric arc of motion encounters conduction leads arcs, electric arc is formed at once
The short arc of the series connection of multistage, cause the voltage between every section of short arc to produce a times drop, greatly reduce the resume speed of voltage, and reduce
The energy of electric arc, moved moreover, arc burning point can lead arcs surface along metal, so as to accelerate to radiate, accelerate medium recovery
Speed；Therefore, for direct-current arc, electric arc is easier to extinguish；For alternating current arc, after voltage zero-cross, it is possible to prevente effectively from
Arc reignition problem；The utility model by set metal lead the gap between arcs and two pairs of contacts line formed it is certain
Angle, metal are led arcs in addition to preventing to change electric arc direction, can moved with pilot arc along metal surface, by reasonable
The angle for leading arcs is set, can effectively be moved away from the direction of plastics pilot arc, avoid electric arc burn plastics.
The utility model is described in further detail below in conjunction with drawings and Examples；But one kind of the present utility model is resistance to
The electromagnetic relay of high-voltage great-current load is not limited to embodiment.
Brief description of the drawings
Fig. 1 is the D structure schematic diagram of the present utility model of embodiment one；
Fig. 2 is one structure sectional view of the present utility model of embodiment；
Fig. 3 is two structure sectional view of the present utility model of embodiment；
Fig. 4 is three structure sectional view of the present utility model of embodiment.
Embodiment
Embodiment one
Referring to shown in Fig. 1 to Fig. 2, a kind of electromagnetic relay of high pressure resistant large current load of the present utility model, including bottom
Seat 1, coil 2, yoke 3, iron core 4, armature part 5, reset reed 6, bridge joint movable spring group 7, quiet spring part 8, lead arcs etc. zero
Part, wherein, bridge joint movable spring group 7 includes two movable contacts 71 and bridges at the movable contact spring 72 of two movable contacts, and quiet spring part 8 includes
Stationary contact 81 and quiet spring 82, coil 2 are fixed with yoke 3 by iron core 4, form magnetic circuit part, and base 1 is main support part,
Secure magnetic circuit part, quiet spring part 8, lead the parts such as arcs 9, one end of armature part 5 has riveted bridge joint movable spring group 7, middle
Rotating part coordinate in the presence of reset reed 6 with the edge of a knife of yoke 3, the yoke edge of a knife will not be left, the other end forms magnetic
Pole produces suction with the effect of iron core 4.In the presence of coil 2, armature is inhaled by iron core 4, and then drives movable spring group action, realizes
Movable contact 71 in movable spring group is moved on the stationary contact 81 of quiet spring part, realizes the connection of circuit, conversely, when coil 2 powers off
When, counter-force caused by reset reed 6 makes movable spring group leave quiet spring part, realizes the disjunction of circuit.
A kind of electromagnetic relay of high pressure resistant large current load of the present utility model, two movable contacts 71 and two stationary contacts
81 corresponding adaptations, and one of stationary contact 81 is set to electric current inflow, another stationary contact 81 is set to electric current outflow, makes two pairs
The line in gap of the caused electric arc 10 along two pairs of contacts splashes laterally between contact；Because two pairs of contacts are using bridge-type series connection
Mode, either to AC load or DC load, the electric current for flowing through two pairs of contacts necessarily " is thought in equal in magnitude, direction
Method ", caused electric arc necessarily excludes each other two contacts, and therefore, two electric arcs will necessarily be towards the side being located remotely from each other
To motion, that is, it is displaced outwardly on the outside of the line in gap along two pairs of contacts；Line in the gaps of two pairs of contacts
Outside be respectively equipped with one be used for stopping corresponding to gap of the electric arc along two pairs of contacts line fly out in outward direction the
One leads arcs 91, and described first leads arcs 91 is made up of conductive metal material, and first lead arcs 91 relative to two pairs touch
The gap of point is wired to angularly disposed so that the preset striking direction that the electric arc being blocked can lead arcs along first is oriented to
It is mobile, i.e. first lead the gap of arcs 91 and two pairs of contacts be wired to a θ angles.First, which leads arcs 91, can both use and can lead
Magnetic and conductive iron, cobalt, nickel and its alloy material are made, and can also use only conductive but non-magnetic other metal materials
(such as copper, silver etc.) is made.
In the present embodiment, first leads arcs 91 and contact loop mutually insulated, and first one end for leading arcs 91 is fixed on the back of the body
From the side of stationary contact 81, first other end for leading arcs 91 is extended up to close to stationary contact from bearing to stationary contact direction
Position, so that the preset striking direction is the direction for facing away from stationary contact.
One second, which is further respectively had, in the present embodiment, on the outside of the line in the gap of two pairs of contacts leads arcs 92；
Described second leads arcs 92 is made up of conductive metal material, and described second leads arcs 92 and contact loop mutually insulated, institute
State second and lead arcs 92 and first and lead the also mutually insulated of arcs 91, described second one end for leading arcs 92 is fixed on away from stationary contact
Side, second leads the other ends of arcs 92 is extended up to close to the position of movable contact from bearing to contactor gap direction, with
Make first to lead arcs 91 and second to lead arcs 92 and surround one and lead arc passage, make the preset striking direction to face away from stationary contact
The direction of point.Likewise, second leads arcs 92 and can both use magnetically permeable and conductive iron, cobalt, nickel and its alloy material system
Into only conductive but non-magnetic other metal materials (such as copper, silver etc.) can also being used to be made.
In the present embodiment, first, which leads the other end of arcs 91 and second, leads the distance between the other end of arcs 92 size not
More than the size of contactor gap, so that caused electric arc forms the short arc of very multi-stage series between contact, and then electric arc is reduced
Voltage and arc energy.
In the present embodiment, first lead one end bearing of arcs 91 and second lead between one end bearing of arcs 92 away from
The other end of arcs and second is led more than first from size and lead the distance between the other end of arcs size, so that the arc of leading leads to
Road is the big flared structure in the small inboard of opening.
In the present embodiment, second lead the other end of arcs 92 be provided with kink, second leads the end of the other end of arcs
921 led with first arcs 91 the other end it is almost parallel.
Described first, which leads arcs 91 and second, leads arcs 92 and is separately fixed on base 1.
A kind of electromagnetic relay of high pressure resistant large current load of the present utility model, is in the outside of the line of two pairs of contacts
Be respectively equipped with it is at least one be used for stopping corresponding to line of the electric arc along two pairs of contacts fly out in outward direction lead arcs, and
Lead arcs to be made up of conductive metal material, lead arcs and be wired to angularly disposed so as to be blocked relative to two pairs of contacts
Electric arc can be along the preset striking direction guiding movement for leading arcs.This structure of the present utility model, by setting conduction
Metal leads arcs, and when the metal that the electric arc of motion encounters conduction leads arcs, electric arc forms the short arc of the series connection of multistage at once, leads
Cause the voltage between every section of short arc to produce a times drop, greatly reduce the resume speed of voltage, and reduce the energy of electric arc, moreover, electric
Arc burning point can lead arcs surface along metal and move, and so as to accelerate to radiate, accelerate medium recovery speed；Therefore, for direct current
Electric arc, electric arc are easier to extinguish；For alternating current arc, after voltage zero-cross, it is possible to prevente effectively from arc reignition problem；This practicality
It is new set metal is led to the gap between arcs and two pairs of contacts line shape it is at a certain angle, metal lead arcs except
Prevent to change outside electric arc direction, can be moved with pilot arc along metal surface, the angle of arcs is led by rationally setting, can
Moved with direction of effective pilot arc away from plastics, avoid electric arc burn plastics.
A kind of electromagnetic relay of high pressure resistant large current load of the present utility model, either DC load still exchange negative
Carry, the direction of electric arc caused by two pairs of contacts is all towards the direction movement being located remotely from each other, and therefore, extinguishing arc object can be straight
Stream or exchange.In order to prevent electric arc from burning plastics, the arcs of leading of the utility model design both employed " bulkhead " electric arc
Mode, employ " guiding " electric arc again, dredge the mode of radiating, therefore, extinguishing arc effect is more preferable.The utility model can be by electricity
Arc reformulates multistage short arc, reduces arc voltage, slows down the resume speed of voltage.
Embodiment two
It is shown in Figure 3, a kind of electromagnetic relay of high pressure resistant large current load of the present utility model, with embodiment one
Difference is that the first fixed position for leading one end of arcs 91 differs, and the first of the present embodiment leads one end of arcs 91
It is fixed on the edge of base 1.
Embodiment three
It is shown in Figure 4, a kind of electromagnetic relay of high pressure resistant large current load of the present utility model, with embodiment one
Difference is, arcs 92 are led without second, and " bulkhead " electric arc and " guiding " electric arc all lead arcs 91 to realize by first.
Certainly, as needed, can also set first lead arcs 91 and second lead arcs 92 on the basis of, be further added by the
Three lead arcs, the 3rd lead arcs can with it is a piece of can also multi-disc, the 3rd leads arcs is also made up of conductive metal material, described
3rd leads arcs and contact loop mutually insulated, and the described 3rd, which leads arcs, leads arcs with first, second leads arcs also mutually insulated,
Described 3rd lead arcs be located at first lead arcs and second lead between arcs or first lead arcs and second lead it is outer between arcs
Side.
Above-mentioned simply preferred embodiment of the present utility model, not makees any formal limitation to the utility model.Though
Right the utility model is disclosed above with preferred embodiment, but is not limited to the utility model.It is any to be familiar with this area
Technical staff, in the case where not departing from technical solutions of the utility model scope, all using the technology contents of the disclosure above
Technical solutions of the utility model are made with many possible changes and modifications, or is revised as equivalents equivalent embodiment.Therefore,
Every content without departing from technical solutions of the utility model, according to the utility model technical spirit to made for any of the above embodiments
What simple modification, equivalent variation and modification, all should fall in the range of technical solutions of the utility model protection.
Claims (8)
1. a kind of electromagnetic relay of high pressure resistant large current load, including two movable contacts, the dynamic spring for bridging at two movable contacts
Two stationary contacts of piece and adaptation corresponding with two movable contacts, and one of stationary contact is set to electric current inflow, another is quiet
Contact is set to electric current outflow, and the line in gap of the caused electric arc along two pairs of contacts splashes laterally making two contacts；Its
It is characterised by：One is respectively equipped with the outside of the line in the gap of two pairs of contacts to be used for stopping that corresponding electric arc touches along two Duis
First that the line in the gap of point flies out in outward direction leads arcs, and described first to lead arcs be conductive metal material system
Into, and first leads arcs and is wired to angularly disposed so that the electric arc being blocked can be along relative to the gap of two pairs of contacts
One leads the preset striking direction guiding movement of arcs.
2. the electromagnetic relay of high pressure resistant large current load according to claim 1, it is characterised in that：Described first leads arc
Piece and contact loop mutually insulated, described first one end for leading arcs are fixed on away from the side of stationary contact, and first leads arcs
The other end is extended up to close to the position of stationary contact, so that the preset striking direction is direction from bearing to stationary contact direction
Away from the direction of stationary contact.
3. the electromagnetic relay of high pressure resistant large current load according to claim 2, it is characterised in that：Two pairs of contacts
Gap line on the outside of further respectively have one second and lead arcs；Described second to lead arcs be conductive metal material system
Into described second leads arcs and contact loop mutually insulated, and described second, which leads arcs and first, leads arcs also mutually insulated, described
Second one end for leading arcs is fixed on away from the side of stationary contact, and second leads the other ends of arcs from bearing to contactor gap side
To the position extended up to close to movable contact, so that first leads arcs and second and lead arcs and surround one and lead arc passage, make described
Preset striking direction is the direction for facing away from stationary contact.
4. the electromagnetic relay of high pressure resistant large current load according to claim 3, it is characterised in that：Described first leads arc
The other end of piece and second leads the size that the distance between other end of arcs size is not more than contactor gap, so that contact
Between caused electric arc form the short arc of very multi-stage series, and then reduce arc voltage and arc energy.
5. the electromagnetic relay of high pressure resistant large current load according to claim 4, it is characterised in that：Described first leads arc
One end bearing of piece with second lead the distance between one end bearing of arcs size lead more than first the other ends of arcs with
Second leads the distance between other end of arcs size, so that the arc passage of leading is the big flared structure in the small inboard of opening.
6. the electromagnetic relay of high pressure resistant large current load according to claim 5, it is characterised in that：Described second leads arc
The other end of piece is provided with kink, and the other end that the second end for leading the other end of arcs leads arcs with first is almost parallel.
7. the electromagnetic relay of high pressure resistant large current load according to claim 3, it is characterised in that：Two pairs of contacts
Gap line on the outside of further respectively have at least one 3rd and lead arcs；Described 3rd to lead arcs be conductive metal material
Material is made, and the described 3rd leads arcs and contact loop mutually insulated, and the described 3rd, which leads arcs, leads arcs with first, second leads arcs
Also mutually insulated, the described 3rd, which leads arcs, is located at first and leads arcs and second and lead between arcs or first leads arcs and second and lead arc
Outside between piece.
8. the electromagnetic relay of high pressure resistant large current load according to claim 7, it is characterised in that：The electromagnetism relay
Device also include being used for installing stationary contact and be the base being made by plastic material, described first leads arcs or also includes the
Two lead arcs or also lead arcs including the 3rd and are separately fixed on base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720454573.0U CN206758316U (en) | 2017-04-27 | 2017-04-27 | The electromagnetic relay of high pressure resistant large current load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720454573.0U CN206758316U (en) | 2017-04-27 | 2017-04-27 | The electromagnetic relay of high pressure resistant large current load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206758316U true CN206758316U (en) | 2017-12-15 |
Family
ID=60615021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720454573.0U Withdrawn - After Issue CN206758316U (en) | 2017-04-27 | 2017-04-27 | The electromagnetic relay of high pressure resistant large current load |
Country Status (1)
| Country | Link |
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| CN (1) | CN206758316U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107045955A (en) * | 2017-04-27 | 2017-08-15 | 厦门宏发电声股份有限公司 | A kind of electromagnetic relay of high pressure resistant large current load |
-
2017
- 2017-04-27 CN CN201720454573.0U patent/CN206758316U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107045955A (en) * | 2017-04-27 | 2017-08-15 | 厦门宏发电声股份有限公司 | A kind of electromagnetic relay of high pressure resistant large current load |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171215 Effective date of abandoning: 20200121 |
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| AV01 | Patent right actively abandoned |