CN205920941U - Nonpolarity arc extinguishing magnetic circuit and direct current relay thereof - Google Patents
Nonpolarity arc extinguishing magnetic circuit and direct current relay thereof Download PDFInfo
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- CN205920941U CN205920941U CN201620825456.6U CN201620825456U CN205920941U CN 205920941 U CN205920941 U CN 205920941U CN 201620825456 U CN201620825456 U CN 201620825456U CN 205920941 U CN205920941 U CN 205920941U
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Abstract
The utility model discloses a nonpolarity arc extinguishing magnetic circuit and direct current relay thereof, arc extinguishing magnetic circuit include that two connect contact and four magnet steel that can realize contact or separation through the movable contact spring electricity, in four magnet steel, wherein the outside at the both ends of line between two contacts is established respectively to two magnet steel, and two magnet steel are established the both sides of line between two contacts and be that the dislocation distributes and relative respectively with two contacts in addition, in four magnet steel, line up the L shape that is not connected corresponding to two magnet steel of same contact, just the magnetic pole of the one side of orientation contact is established to different, makes and forms the magnetic field that the magnetic line of force distributes into fan -shaped direction between two magnet steel to the magnetic line of force that makes this magnetic field is through the center of correspond contact, thus correspond the contact locate direction of formation and two contact within a definite time the line and have the magnetic blowing force of a contained angle. The utility model has the characteristics of the arc blow -out is effectual, can circuit nonpolarity connection.
Description
Technical field
This utility model is related to a kind of DC relay, more particularly to a kind of nonpolarity arc extinguishing magnetic circuit and its direct current relay
Device.
Background technology
Relay is a kind of electronic control device, it have control system (also known as input circuit) and by control system (and
Claim output loop), it is commonly used in automatic control circuit, it actually goes to control the one of larger current with less electric current
Plant " automatic switch ".Therefore play in circuit automatically adjust, safeguard protection, the effect such as change-over circuit.DC relay is relay
One of device, existing DC relay adopts movable contact spring Direct Action Type (also referred to as solenoid Direct Action Type) technical scheme mostly.
For making small product size little, the load of utilization is high, and contactor gap is typically made less, so by existing DC relay
So that the arc length between contact is broken, thus reaching the ability of arc extinguishing afterwards using extraneous strength.For example: the manufacturer such as Panasonic, safe section, ls
All use magnet steel arc extinguishing (nearly all HVDC product is all).But their equal polarized of arc extinguishing scheme requires, and works as pole
When property is reversed, life capacity declines suddenly, or even can explode.Fig. 1 is a kind of arc extinguishing magnetic circuit of DC relay of prior art
(electric current is positive to be connected), as shown in figure 1, this arc extinguishing magnetic circuit includes contact part, contact part includes two and is respectively intended to provide
Electric current inflow, the static contact 101 flowing out and a movable contact spring (not shown), wherein, one, left side static contact 101 is electric current
Flow into, one, the right static contact 101 is electric current outflow, and matched formation two respectively with two static contacts 101 for the two ends of movable contact spring
Contact；It is respectively provided with a magnet steel 102 in the outside on the both sides of the width of movable contact spring corresponding to each contact, totally four magnet steel,
Two magnet steel 102 corresponding to same contact pass through a u shape yoke folder 103 connection, and the polarity opposite sex phase of two blocks of magnet steel 102
Right, that is, above the n pole of a magnet steel 102 towards contact direction, below a magnet steel 102 s pole towards contact direction, root Ju is left
Hand rule, the magnetic field Hui Liang contact being formed by upper lower magnetic steel 102 (i.e. the contact position of two static contacts and movable contact spring) point
Xing Cheng outside power f (as arrow indication in Fig. 1) not touch so that direction pointed by towards power f for the electric arc is blown, that is, towards two
The opposite direction of point is blown；When the electric current of two static contacts 101 is reversed, as shown in Fig. 2 Fig. 2 is a kind of direct current of prior art
The arc extinguishing magnetic circuit (electric current Opposite direction connection) of relay, same root Ju left hand rule, the magnetic field being formed by upper lower magnetic steel 102 can be
Form inward force f (as arrow indication in Fig. 2) at two contacts respectively, during reverse electric life, arc be in
Between blow so that the probability that two arcs are collided substantially increases, and there is movable contact spring, catch bar, spring etc. assembly centre, and arc temperature easily makes
Part fusing in the middle of movable contact spring etc., and due to two contacts between spacing be also to be connected by middle movable contact spring, the reversely electric longevity
Life is also easy to connect so that the contact of the right and left punctures by arc, and then electric life was lost efficacy, or even blast.
Utility model content
The purpose of this utility model is to overcome the deficiency of prior art, provides a kind of nonpolarity arc extinguishing magnetic circuit and its direct current
Relay, has that arc blow-out effect is good, is capable of the feature of the nonpolarity connection of circuit.
This utility model solves its technical problem and be the technical scheme is that a kind of nonpolarity arc extinguishing magnetic circuit, including two
Electrically connect and enable contact or detached contact and four magnet steel by movable contact spring；In described four magnet steel, two of which magnetic
Steel is respectively provided at the outside at the two ends of line between two contacts, and another two magnet steel is located between two contacts the both sides of line and in dislocation point
Cloth and relative respectively with two contacts；In four magnet steel, the l shape shape being not connected with lined up by two magnet steel corresponding to same contact
Shape, and the magnetic pole towards the one side of contact is set to different, makes to form the magnetic line of force between two magnet steel and is scattered in the magnetic in fan-shaped direction
, and make the magnetic line of force in this magnetic field through the center of corresponding contact, thus forming a direction and two at corresponding contact
Between contact, line has the magnetic blow-out power of an angle.
The direction of described two magnetic blow-out power is identical.
The magnetic polarity of the opposite one side of described two magnet steel being located at the outside at the two ends of line between two contacts is set to identical.
The centrage of described two magnet steel being located at the outside at the two ends of line between two contacts is respectively provided at respect to respective
It is matched with the position for line between more than two contacts for the magnetic pole strength of corresponding magnet steel of same contact, make in this two magnet steel
Heart line is not mutually concordant.
Described it is located at both sides of line between two contacts and the centrage in two magnet steel being dislocatedly distributed is respectively provided at relatively
For exceeding each at the position of corresponding contact for be each matched with the magnetic pole strength of corresponding magnet steel of same contact.
Described corresponding to be also connected between two magnet steel of same contact one l type yoke folder.
A kind of DC relay, including described arc extinguishing magnetic circuit.
Compared with prior art, the beneficial effects of the utility model are:
1st, this utility model employs in four magnet steel, and two magnet steel corresponding to same contact are lined up and are not connected with
L shape shape, and towards the one side of contact magnetic pole be set to different, make between two magnet steel formed the magnetic line of force be scattered in fan-shaped direction
Magnetic field, and make the magnetic line of force in this magnetic field through the center of corresponding contact, thus forming a direction at corresponding contact
Line has the magnetic blow-out power of an angle and between two contacts.This structure of the present utility model, the direction of arc blow-out, in diagonal, makes
The space blown of arc is bigger, be more beneficial for current interruption, arc extinguishing ability is higher, and the utilization space of product is higher.
2nd, this utility model employs magnet steel and the folder collocation of l type yoke carrying out arc extinguishing, using l type yoke so that magnet steel
Magnetic field trend, from dissipate in the air magnetic field trend become along l type yoke flowing, be so easy to focus on the magnetic line of force
The position needing, greatly strengthen the effect of arc extinguishing, thus reducing the volume required for magnet steel, cost-effective.
3rd, this utility model employs the centrage of two magnet steel by being located at the outside at the two ends of line between two contacts and divides
Be not located at for being each matched with the magnetic pole strength of corresponding magnet steel of same contact be more than two contacts between line position
Place, and both sides of line between two contacts will be located at and the centrage in two magnet steel being dislocatedly distributed is respectively provided at respect to each
It is to exceed each at the position of corresponding contact from for the magnetic pole strength of corresponding magnet steel being matched with same contact.This utility model
This structure, by the special placement of magnet steel position, make the magnetic induction line (i.e. the magnetic line of force) that contact center passes through the most intensive, from
And greatly improve magnetic blow-out effect.
4th, this utility model employs the polarity of two magnet steel by being located at the outside at the two ends of line between two contacts and is set to
Identical.This structure of the present utility model, no matter the closure of electric current is positive or reversely, can make the arc blow-out of two contacts
Direction is identical, will not produce the drawbacks of cause two arcs to collide in prior art when the sense of current is reversed, it is achieved thereby that electrodeless
Property arc extinguishing.
Below in conjunction with drawings and Examples, this utility model is described in further detail；But a kind of nothing of the present utility model
Polarity arc extinguishing magnetic circuit and its DC relay are not limited to embodiment.
Brief description
Fig. 1 is a kind of schematic diagram of the arc extinguishing magnetic circuit (electric current is positive to be connected) of DC relay of prior art；
Fig. 2 is a kind of schematic diagram of the arc extinguishing magnetic circuit (electric current Opposite direction connection) of DC relay of prior art；
Fig. 3 is the schematic diagram of embodiment one arc extinguishing magnetic circuit of the present utility model (electric current is positive to be connected)；
Fig. 4 is the schematic diagram of embodiment one arc extinguishing magnetic circuit of the present utility model (electric current Opposite direction connection)；
Fig. 5 is the schematic diagram of embodiment two arc extinguishing magnetic circuit of the present utility model (electric current is positive to be connected)；
Fig. 6 is the schematic diagram of embodiment two arc extinguishing magnetic circuit of the present utility model (electric current Opposite direction connection).
Specific embodiment
Embodiment one
Referring to shown in Fig. 3, Fig. 4, a kind of nonpolarity arc extinguishing magnetic circuit of the present utility model, electrically connected by movable contact spring including two
And enable contact or detached contact 11,12 and four magnet steel 21,22,23,24；In described four magnet steel, two of which magnetic
Steel 21,22 is respectively provided at the outside at the two ends of two 11,12 lines in contact, and another two magnet steel 23,24 is located at line between two contacts
Both sides and in being dislocatedly distributed and relative respectively with two contacts, that is, magnet steel 23 is relative with contact 11, and magnet steel 24 is relative with contact 12；
In four magnet steel, the l shape shape being not connected with lined up by two magnet steel corresponding to same contact, and the magnetic of the one side towards contact
Pole is set to different, makes to form the magnetic line of force between two magnet steel and is scattered in the magnetic field in fan-shaped direction, and makes the magnetic line of force warp in this magnetic field
Cross the center of corresponding contact, thus forming line between a direction and two contacts at corresponding contact there is an angle
Magnetic blow-out power；That is, two magnet steel 21,23 corresponding to contact 11 line up the l shape shape being not connected with, two magnet steel 21,23 directions
The magnetic pole of the one side of contact 11 is set to different, in this manner it is possible to make the formation magnetic line of force between two magnet steel 21,23 be scattered in sector
The magnetic field in direction, and make the magnetic line of force in this magnetic field through the center of corresponding contact 11, thus being formed at corresponding contact 11
Between one direction and two contacts, line has magnetic blow-out power f of an angle；Equally, corresponding to two magnet steel 22,24 of contact 12
Also line up the l shape shape being not connected with, the magnetic pole of two magnet steel 22,24 one side towards contact 12 be set to different, so so that it may
So that forming, between two magnet steel 22,24, the magnetic field that the magnetic line of force is scattered in fan-shaped direction, and make the magnetic line of force in this magnetic field through institute
The center of corresponding contact 12, thus form line between a direction and two contacts have an angle at corresponding contact 12
Magnetic blow-out power f.
Wherein, the magnetic polarity being located at the opposite one side of two magnet steel in the outside at the two ends of line between two contacts is set to phase
With；I.e. the polarity of the opposite one side of magnet steel 21 and magnet steel 22 is set to identical, in the present embodiment, is by the phase of magnet steel 21 and magnet steel 22
Be set to n pole to the magnetic polarity of one side, due to magnet steel 21 and magnet steel 22 opposite one side be to be respectively facing each corresponding touching
Point, therefore, the magnetic polarity towards the one side each corresponding to contact of magnet steel 21 and magnet steel 22 is n pole that is to say, that magnet steel 21
The magnetic polarity of the one side towards corresponding contact 11 be n pole, the magnetic polarity of the one side towards corresponding contact 12 of magnet steel 22 is n
Pole, so, the magnetic polarity of the one side towards corresponding contact 11 of magnet steel 23 is just s pole, the corresponding contact 12 of direction of magnet steel 24
Magnetic polarity simultaneously is s pole.
In the present embodiment, the centrage being located at two magnet steel 21,22 in the outside at the two ends of line between two contacts sets respectively
For being each matched with the magnetic pole strength of corresponding magnet steel of same contact be more than two contacts between line position at, make
The centrage of this two magnet steel 21,22 is not mutually concordant；That is, the centrage of magnet steel 21 is located at respect to being matched with same contact 11
At position for line between more than two contacts for the magnetic pole strength of corresponding magnet steel 23, the centrage of magnet steel 22 is located at respect to cooperation
At the position for line between more than two contacts for the magnetic pole strength of the corresponding magnet steel 24 of same contact 12.
In the present embodiment, it is located at the both sides of line the centrage in two magnet steel 23,24 being dislocatedly distributed between two contacts
Be respectively provided at for being each matched with the magnetic pole strength of corresponding magnet steel of same contact is to exceed each corresponding contact
At position；That is, the centrage of magnet steel 23 is located at and for being matched with the magnetic pole strength of corresponding magnet steel 21 of same contact 11 is
Exceed at the position of corresponding contact 11, the centrage of magnet steel 24 is located at respect to the corresponding magnet steel 22 being matched with same contact 12
Magnetic pole strength for for exceeding at the position of corresponding contact 12.
In the present embodiment, press from both sides corresponding to being also connected with a l type yoke between two magnet steel of same contact；That is, corresponding to tactile
It is also connected with a l type yoke folder 31 between two magnet steel 21,23 of point 11, go back corresponding between two magnet steel 22,24 of contact 12
Connect a l type yoke folder 32.
In the case of the positive connection of electric current, that is, contact 11 electric current flows into, the outflow of contact 12 electric current, magnet steel 21 and magnet steel
23rd, the magnetic line of force of magnet steel 22 and magnet steel 24 is distributed as shown in figure 3, root Ju left hand rule, is formed by magnet steel 21 and magnet steel 23
Magnetic field can (i.e. line has an angle and between two contacts, as arrow institute in Fig. 3 in power f of one tilted direction of contact 11 formation
Refer to), the magnetic field being formed by magnet steel 22 and magnet steel 24 can form power f of a tilted direction in contact 12, and the direction of two power f
Identical so that direction pointed by towards power f for the electric arc is blown.
As shown in figure 4, in the case of electric current Opposite direction connection, that is, contact 11 electric current flows out, contact 12 electric current flows into, magnet steel
21 are distributed still identical, root Ju left hand rule with magnet steel 23, magnet steel 22 and the magnetic line of force of magnet steel 24, by magnet steel 21 and magnet steel 23,
The magnetic field Hui Liang contact 11,12 that magnet steel 22 and magnet steel 24 are formed respectively forms power f of a tilted direction respectively, due to electric current
Direction is reversed, the power contrast of two tilted directions in power f of two tilted directions and Fig. 3 in Fig. 4, but the direction of two power f
Or identical, therefore, be not in cause the situation that two arcs collide to occur in prior art when the sense of current is reversed it is achieved that
Nonpolarity wiring.
A kind of nonpolarity arc extinguishing magnetic circuit of the present utility model, employs in four magnet steel, corresponding to the two of same contact
The l shape shape being not connected with lined up by individual magnet steel, and the magnetic pole towards the one side of contact is set to different, makes to be formed between two magnet steel
The magnetic line of force is scattered in the magnetic field in fan-shaped direction, and makes the magnetic line of force in this magnetic field through the center of corresponding contact, thus right
Answer and at contact, form the magnetic blow-out power that line between a direction and two contacts has an angle；This structure of the present utility model,
The direction of arc blow-out is more beneficial for current interruption, arc extinguishing ability is higher, and the utilization of product in diagonal so that the space blown of arc is bigger
Space is higher.This utility model employs magnet steel and the folder collocation of l type yoke carrying out arc extinguishing, using l type yoke so that magnet steel
Magnetic field is moved towards, and is become along the flowing of l type yoke from the magnetic field trend dissipating in the air, and being so easy to focus on the magnetic line of force needs
The position wanted, greatly strengthen the effect of arc extinguishing, thus reducing the volume required for magnet steel, cost-effective.This utility model
The centrage employing two magnet steel by being located at the outside at the two ends of line between two contacts is respectively provided at respect to respective cooperation
At the position for line between more than two contacts for the magnetic pole strength of the corresponding magnet steel of same contact, and will be located between two contacts
The both sides of line are simultaneously respectively provided at respect to being each matched with the right of same contact in the centrage of two magnet steel being dislocatedly distributed
Answer for the magnetic pole strength of magnet steel as exceeding each at the position of corresponding contact；This structure of the present utility model, by magnet steel
The special placement of position, makes the magnetic induction line (i.e. the magnetic line of force) that contact center passes through the most intensive, thus greatly improving magnetic blow-out effect.
This utility model employ two magnet steel by being located at the outside at the two ends of line between two contacts polarity be set to identical；This practicality
New this structure, no matter the closure of electric current is positive or reversely, and the arc blow-out direction of two contacts can be made identical, no
The drawbacks of cause two arcs to collide in prior art when the sense of current is reversed can be produced, it is achieved thereby that nonpolarity arc extinguishing.
A kind of DC relay of the present utility model, including above-mentioned arc extinguishing magnetic circuit.
Embodiment two
Referring to shown in Fig. 5, Fig. 6, a kind of nonpolarity arc extinguishing magnetic circuit of the present utility model, exist with the difference of embodiment one
In the polarity set-up mode of four magnet steel is different, wherein, in the present embodiment, is the opposite one side by magnet steel 21 and magnet steel 22
Magnetic polarity is set to s pole that is to say, that the magnetic polarity of the one side towards corresponding contact 11 of magnet steel 21 is s pole, the direction of magnet steel 22
The magnetic polarity of the one side of corresponding contact 12 is s pole, and so, the magnetic polarity of the one side towards corresponding contact 11 of magnet steel 23 is just n
Pole, the magnetic polarity of the one side towards corresponding contact 12 of magnet steel 24 is n pole.
Above-mentioned simply preferred embodiment of the present utility model, not makees any pro forma restriction to this utility model.Though
So this utility model is disclosed above with preferred embodiment, but is not limited to this utility model.Any it is familiar with this area
Technical staff, in the case of without departing from technical solutions of the utility model scope, the technology contents of the disclosure above all can be utilized
Technical solutions of the utility model are made with many possible variations and modification, or is revised as equivalents Equivalent embodiments.Therefore,
Every content without departing from technical solutions of the utility model, according to this utility model technical spirit to made for any of the above embodiments
What simple modification, equivalent variations and modification, all should fall in the range of technical solutions of the utility model protection.
Claims (7)
1. a kind of nonpolarity arc extinguishing magnetic circuit, electrically connects and enables contact or detached contact and four including two by movable contact spring
Magnet steel；In described four magnet steel, two of which magnet steel is respectively provided at the outside at the two ends of line between two contacts, and another two magnet steel sets
Both sides of line in being dislocatedly distributed and relative respectively with two contacts between two contacts；It is characterized in that: in four magnet steel, corresponding
The l shape shape being not connected with lined up by two magnet steel in same contact, and the magnetic pole towards the one side of contact is set to different, makes two
Form, between individual magnet steel, the magnetic field that the magnetic line of force is scattered in fan-shaped direction, and make the magnetic line of force in this magnetic field in corresponding contact
The heart, thus form the magnetic blow-out power that line between a direction and two contacts has an angle at corresponding contact.
2. arc extinguishing magnetic circuit according to claim 1 it is characterised in that: the direction of described two magnetic blow-out power is identical.
3. nonpolarity arc extinguishing magnetic circuit according to claim 2 it is characterised in that: the described two ends being located at line between two contacts
The opposite one side of two magnet steel in outside magnetic polarity be set to identical.
4. nonpolarity arc extinguishing magnetic circuit according to claim 3 it is characterised in that: the described two ends being located at line between two contacts
Two magnet steel in outside centrage be respectively provided at respect to the corresponding magnet steel being each matched with same contact magnetic pole strength come
Say at the position for line between more than two contacts, make the centrage of this two magnet steel mutually not concordant.
5. nonpolarity arc extinguishing magnetic circuit according to claim 4 it is characterised in that: the described both sides being located at line between two contacts
And it is respectively provided at the magnetic with respect to the corresponding magnet steel being each matched with same contact in the centrage of two magnet steel being dislocatedly distributed
It is to exceed each at the position of corresponding contact for pole-face.
6. the nonpolarity arc extinguishing magnetic circuit according to claim 1 or 2 or 3 or 4 or 5 it is characterised in that: described corresponding to same
It is also connected with a l type yoke folder between two magnet steel of contact.
7. a kind of DC relay it is characterised in that: include the arc extinguishing magnetic as described in any claim in claim 1 to 6
Road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620825456.6U CN205920941U (en) | 2016-08-01 | 2016-08-01 | Nonpolarity arc extinguishing magnetic circuit and direct current relay thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620825456.6U CN205920941U (en) | 2016-08-01 | 2016-08-01 | Nonpolarity arc extinguishing magnetic circuit and direct current relay thereof |
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| Publication Number | Publication Date |
|---|---|
| CN205920941U true CN205920941U (en) | 2017-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620825456.6U Active CN205920941U (en) | 2016-08-01 | 2016-08-01 | Nonpolarity arc extinguishing magnetic circuit and direct current relay thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114342033A (en) * | 2019-08-28 | 2022-04-12 | Ls电气株式会社 | Arc path forming part and direct current relay including the same |
-
2016
- 2016-08-01 CN CN201620825456.6U patent/CN205920941U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114342033A (en) * | 2019-08-28 | 2022-04-12 | Ls电气株式会社 | Arc path forming part and direct current relay including the same |
| US12062509B2 (en) | 2019-08-28 | 2024-08-13 | Ls Electric Co., Ltd. | ARC path forming unit and direct current relay including same |
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