CN113380565B - Relay with enhanced magnetic field - Google Patents
Relay with enhanced magnetic field Download PDFInfo
- Publication number
- CN113380565B CN113380565B CN202110605486.1A CN202110605486A CN113380565B CN 113380565 B CN113380565 B CN 113380565B CN 202110605486 A CN202110605486 A CN 202110605486A CN 113380565 B CN113380565 B CN 113380565B
- Authority
- CN
- China
- Prior art keywords
- magnetic steel
- group
- steel group
- contact
- magnetic
- 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.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 416
- 239000010959 steel Substances 0.000 claims abstract description 416
- 239000000178 monomer Substances 0.000 claims abstract description 99
- 230000003068 static effect Effects 0.000 claims abstract description 9
- 238000010891 electric arc Methods 0.000 abstract description 28
- 230000004888 barrier function Effects 0.000 abstract description 5
- 230000005347 demagnetization Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 8
- 235000014676 Phragmites communis Nutrition 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- H01H50/54—Contact arrangements
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention relates to a relay, in particular to a relay with a reinforced magnetic field. The relay with the reinforced magnetic field is characterized by comprising a cavity for accommodating a contact group and a magnetic steel group, wherein at least one contact group consisting of a movable contact and a static contact is arranged in the cavity, at least one magnetic steel group is arranged beside the contact group in the cavity, the magnetic steel group consists of at least two magnetic steel monomers which are independent and close to each other, and the magnetic steel group comprises at least two magnetic steel monomers with different magnetizing directions. The invention can prolong the travel of the electric arc to avoid the electric arc damaging the arc barrier and the contact between the electric arc and the magnetic steel, thereby avoiding the demagnetization failure of the magnetic steel and ensuring the use of the relay to be more stable and the service life to be longer.
Description
Technical Field
The invention relates to a relay, in particular to a relay with a reinforced magnetic field.
Background
As shown in fig. 15, the conventional high-voltage relay includes a housing, two stationary contacts are disposed in the housing, the movable contacts 12 are all fixed on the movable springs 14, and a movable contact 12 is disposed under each stationary contact, for arc extinction, a magnetic steel 19 is disposed on front and rear sides of a chamber formed by the housing, and magnetizing directions of the two magnetic steels 19 are all along the front and rear directions, and the magnetizing direction is a. When the movable contact and the static contact are contacted and disconnected, an electric arc can be emitted at the contact position of the movable contact and the static contact, the electric arc can move to the left end part and the right end part of the magnetic steel 19, namely, the electric arc can move to the corner of an inner cavity formed by the shell, and the energy of the electric arc can be gradually dissipated in long-stroke movement, so that arc extinction is realized.
Fig. 16 is a magnetic circuit diagram of fig. 15, and fig. 17 is a graph of movement trajectories of the arcs after the moving contact point is broken in fig. 15 (the movement trajectories of the arcs are constituted by a plurality of consecutive dots in the graph).
The arc can contact with the corners of the magnetic steel when moving, and the magnetic steel can be demagnetized under the action of high temperature due to the fact that the arc has high temperature, so that the magnetic steel can fail. Some relays can set an insulating board made of ceramic or insulating plastic materials between the magnetic steel and the movable and static contacts to avoid the contact between the electric arc and the magnetic steel, but the high-temperature electric arc can strike the insulating board, the insulating board can be damaged due to the long-term contact with the high-temperature electric arc, the insulating board can be damaged or melt and deform, and the electric arc still contacts with the magnetic steel to cause the demagnetizing failure of the magnetic steel.
Disclosure of Invention
The invention aims to provide a relay with a reinforced magnetic field, which can improve arc stroke to avoid the contact of an arc and magnetic steel so as to lead the magnetic steel to fail.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a relay with strengthen magnetic field, includes the cavity that is used for holding contact group and magnet steel group, be equipped with at least one in the cavity by moving, stationary contact constitutes the contact group, to set up at least one in the cavity the contact group is other the magnet steel group, the magnet steel group comprises at least two mutually independent and magnet steel monomer that press close to, and the magnet steel group includes at least two magnet steel monomers that magnetize the direction is different.
According to the invention, the single magnet steel of the magnet steel group is set to be a plurality of magnet steel monomers, and the magnet steel monomers have different magnetizing directions, so that magnetic lines of force of the magnet steel group, which are closer to corners of the cavity, are denser, the magnetic field strength is higher, and the moving direction and the moving distance of the electric arc can be changed, thereby prolonging the moving time and the moving distance of the electric arc, further consuming the energy of the electric arc, avoiding the electric arc with certain energy from contacting with the magnet steel or an insulating plate outside the magnet steel, and avoiding damage to the insulating plate, and further avoiding demagnetization of the magnet steel. When the magnetic steel group is positioned at the left side or the right side of the contact group, at least two magnetic steel monomers of the magnetic steel group are sequentially arranged front and back; when the magnetic steel group is positioned at the front side or the rear side of the contact group, at least two magnetic steel monomers of the magnetic steel group are sequentially arranged left and right. Wherein, the magnetic steel monomers can be closely connected together so as to make the magnetic force lines more compact.
Preferably, the magnetic steel monomers at two opposite sides of the magnetic steel group magnetize to the outer side of the magnetic steel group, or the magnetic steel monomers at two opposite sides of the magnetic steel group magnetize to the inner side of the magnetic steel group. The arrangement enables the electric arc generated after the movable contact and the fixed contact are separated to move to the side far away from the magnetic steel group.
When the magnetic steel group is positioned at the front side or the rear side of the contact, the magnetic steel monomers are sequentially arranged left and right, the magnetic steel monomers at the left side of the magnetic steel group are magnetized to the left front or the left rear, and the magnetic steel monomers at the right side of the magnetic steel group are magnetized to the right front or the right rear; when the magnetic steel group is positioned on the left side or the right side of the contact, the magnetic steel monomers are sequentially arranged front and back, the magnetic steel monomers at the front side of the magnetic steel group are magnetized to the left front or the right front, and the magnetic steel monomers at the rear side of the magnetic steel group are magnetized to the left rear or the right rear. When the magnetic steel groups are positioned on the left side or the right side of the contact group, and the magnetic steel monomers of the magnetic steel groups are sequentially arranged front and back, the rear side of the forefront magnetic steel monomer of the magnetic steel group is taken as the inner side, the front side of the forefront magnetic steel monomer of the magnetic steel group is taken as the outer side, the front side of the rearmost magnetic steel monomer of the magnetic steel group is taken as the inner side, and the rear side of the rearmost magnetic steel monomer of the magnetic steel group is taken as the outer side. When the magnetic steel groups are positioned at the front side or the rear side of the contact group, and the magnetic steel monomers of the magnetic steel groups are sequentially arranged left and right, the right side of the leftmost magnetic steel monomer of the magnetic steel groups is taken as the inner side, the left side of the leftmost magnetic steel monomer of the magnetic steel groups is taken as the outer side, the left side of the rightmost magnetic steel monomer of the magnetic steel groups is taken as the inner side, and the right side of the rightmost magnetic steel monomer of the magnetic steel groups is taken as the outer side.
Preferably, the magnetizing directions of the magnetic steel monomers at two opposite sides of the magnetic steel group are symmetrically arranged. The arrangement ensures that the magnetic field center of the magnetic steel group is not deviated under the condition that the contact group is relatively positioned at one side of the middle part of the magnetic steel group, so that the electric arc can move according to the set track, and the arc striking distance is ensured.
Preferably, the number of the magnetic steel groups is two, the two magnetic steel groups are a first magnetic steel group and a second magnetic steel group, the first magnetic steel group and the second magnetic steel group are distributed on two sides of the contact group, and the first magnetic steel group and the second magnetic steel group comprise two magnetic steel monomers with different magnetizing directions. The magnetic fields are formed on the two opposite sides of the contact set to influence the electric arc, so that the electric arc can be better deviated from the magnetic steel, and the magnetic steel is prevented from demagnetizing due to the contact of the electric arc and the magnetic steel.
Preferably, the number of the contact sets is two, the two contact sets comprise a first contact set and a second contact set which are arranged at intervals, two opposite sides of the two contact sets are respectively provided with one magnetic steel set, and a first magnetic steel set, a first contact set, a second contact set and a second magnetic steel set are sequentially arranged in the cavity along the front-back direction. A magnetic field set is respectively arranged near two contact sets with a certain distance, and each contact set is matched with a magnetic field set, so that an electric arc generated by breaking each contact set can move farther.
Preferably, the plurality of magnetic steel monomers of the first magnetic steel group and the second magnetic steel group are respectively provided with three magnetic steel groups, each magnetic steel group comprises a middle magnetic steel group and side magnetic steel groups positioned at the left side and the right side of the middle magnetic steel group, the contact breaking center of the moving contact and the stationary contact is positioned between the side magnetic steel groups positioned at the two sides relatively, and the magnetizing directions of the side magnetic steel groups of the two sides are symmetrically arranged leftwards and rightwards. The magnetic steel components are divided into three magnetic steel groups, and the two ends and the middle part of the magnetic steel groups are respectively used as one magnetic steel group, so that the moving track of an electric arc can be better influenced.
Preferably, when the magnetizing direction of one magnetic steel group of the first magnetic steel group extends along the front-back direction and inclines leftwards, the magnetizing direction of the corresponding magnetic steel group of the second magnetic steel group extends along the front-back direction and inclines rightwards; when the magnetizing direction of one magnetic steel group of the first magnetic steel group extends along the front-back direction and inclines to the right, the magnetizing direction of the magnetic steel group corresponding to the front-back direction of the second magnetic steel group extends along the front-back direction and inclines to the left. The arrangement ensures that the electric arcs generated by breaking the two contact sets can move to four corners of the cavity, can avoid the electric arcs from contacting with the magnetic steel or the insulating plate, and can ensure that the moving track of the electric arcs is longer. Meanwhile, the arrangement can enable two arc movement tracks in the chamber to be diagonally arranged, and the temperatures at two ends in the chamber can be more uniform.
Preferably, when the magnetizing direction of one magnetic steel group of the first magnetic steel group extends to the left, the magnetizing direction of the magnetic steel group corresponding to the front and back of the second magnetic steel group is opposite to the magnetizing direction of the first magnetic steel group so as to extend to the right; when the magnetizing direction of one magnetic steel group of the first magnetic steel group extends rightward, the magnetizing direction of the magnetic steel group corresponding to the front and back of the second magnetic steel group is opposite to the magnetizing direction of the first magnetic steel group so as to extend leftward. The arrangement ensures that the electric arcs generated by breaking the two contact sets can move to four corners of the cavity, can avoid the electric arcs from contacting with the magnetic steel or the insulating plate, and can ensure that the moving track of the electric arcs is longer. Meanwhile, the arrangement can enable two arc movement tracks in the chamber to be diagonally arranged, and the temperatures at two ends in the chamber can be more uniform.
Preferably, when the magnetizing direction of one magnetic steel group of the first magnetic steel group extends along the front-back direction, the magnetizing direction of the second magnetic steel group is the same as that of the corresponding magnetic steel group. Meanwhile, the arrangement can enable two arc movement tracks in the chamber to be diagonally arranged, and the temperatures at two ends in the chamber can be more uniform.
Preferably, the number of the magnetic steel monomers in the magnetic steel group is at least two. The arrangement is convenient for maintenance and replacement of the magnetic steel of the relay, and replacement of partial magnetic steel monomers can be carried out according to actual needs so as to obtain magnetic fields with different magnetic line densities, so that the arc moving track can be changed.
The invention can prolong the travel of the electric arc to avoid the electric arc damaging the arc barrier and the contact between the electric arc and the magnetic steel, thereby avoiding the demagnetization failure of the magnetic steel and ensuring the use of the relay to be more stable and the service life to be longer.
Drawings
Fig. 1 is a schematic view of a structure of a relay of embodiment 1 with an insulating cover removed;
FIG. 2 is a schematic view of the repeater of FIG. 1 with the lead and stationary contacts removed;
FIG. 3 is a top view of the relay of FIG. 1 with the lead and stationary contacts removed;
fig. 4 is a magnetic circuit diagram of embodiment 1;
FIG. 5 is a graph of the movement trace of the arc after breaking the moving and static contacts in FIG. 4;
FIG. 6 is a schematic structural view of embodiment 2;
fig. 7 is a magnetic circuit diagram of embodiment 2;
fig. 8 is a diagram of a moving trace of an arc after breaking the moving and static contacts in fig. 6.
Fig. 9 is a schematic structural view of embodiment 3;
fig. 10 is a magnetic circuit diagram of embodiment 3;
FIG. 11 is a schematic structural view of embodiment 4;
fig. 12 is a magnetic circuit diagram of embodiment 4;
FIG. 13 is a graph of the movement trace of the arc after breaking the moving and static contacts of FIG. 11;
fig. 14 is a schematic structural view of embodiment 5;
fig. 15 is a schematic view of a structure of a conventional relay;
fig. 16 is a magnetic circuit diagram of the conventional relay shown in fig. 15;
fig. 17 is a diagram showing a moving trace of an arc after breaking the moving and static contacts in fig. 15.
Detailed Description
The invention is further described below with reference to the drawings and specific embodiments.
Example 1
As shown in fig. 1 to 5, a relay with a reinforced magnetic field according to the present invention includes a yoke plate 11 and an insulating cover (not shown in the drawings), wherein the yoke plate 11 and the insulating cover above the yoke plate 11 form a chamber for accommodating a contact group and a magnetic steel group, two contact groups comprising a movable contact 12 and a stationary contact 13 are provided in the chamber, two magnetic steel groups are provided in the chamber beside the two contact groups, each magnetic steel group is composed of six magnetic steel units 2 independent and close to each other, and each magnetic steel group includes at least two magnetic steel units 10 having different magnetizing directions. The front and rear movable contacts 12 are fixed on the movable reed 14, the movable reed 14 is connected and fixed with the push rod 15 by adopting a relay conventional structure, the front and rear fixed contacts 13 are both fixed on the lower side of a leading-out end 16, and the leading-out end 16 is fixed with an insulating cover by adopting a relay conventional structure (not shown in the figure). Wherein, the stationary contact 13 is located above the movable contact 12, and the magnetic steel unit 10 is magnetized along the horizontal direction.
The two magnetic steel groups are a first magnetic steel group 101 and a second magnetic steel group 102 respectively, the two contact groups comprise a first contact group 103 and a second contact group 104 which are arranged at intervals from front to back, the first magnetic steel group 101 and the second magnetic steel group 102 are distributed on the front side and the rear side of the two contact groups, the first magnetic steel group 101 and the second magnetic steel group 102 respectively comprise two magnetic steel monomers with different magnetizing directions, and the first magnetic steel group 101, the first contact group 103, the second contact group 104 and the second magnetic steel group 102 are sequentially arranged in the cavity along the front-rear direction.
Wherein, be equipped with insulating barrier 17 between magnet steel group and the contact group, insulating barrier 17 press close to the magnet steel group and semi-surrounding is in magnet steel group circumference side, and the magnet steel group is kept away from the outside of contact group and is equipped with the magnetism isolating plate 18 of making by magnetic conduction material. Wherein, the upper end face of the magnetic steel monomer 10 is positioned above the contact breaking position of the movable contact and the stationary contact, and the lower end face of the magnetic steel monomer 10 is positioned below the contact breaking position of the movable contact and the stationary contact. The number of the magnetic steel monomers 10 of the first magnetic steel group 101 and the second magnetic steel group 102 is consistent, the shape and structure of the first magnetic steel group 101 and the second magnetic steel group 102 are the same and are arranged in a front-back symmetrical way, and the central lines of the first magnetic steel group 101 and the second magnetic steel group 102 coincide with the connecting lines between the centers of the two movable contacts 12. The plurality of magnetic steel monomers 10 of the first magnetic steel group 101 and the plurality of magnetic steel monomers 10 of the second magnetic steel group 102 in this embodiment are all stacked left and right.
The first magnetic steel group 101 and the second magnetic steel group 102 of this embodiment each have six magnetic steel monomers 10, every two magnetic steel monomers form a magnetic steel group, the first magnetic steel group 101 and the second magnetic steel group 102 each have three magnetic steel groups, each magnetic steel group comprises a middle magnetic steel group 1011 and side magnetic steel groups 1012 positioned at the left side and the right side of the middle magnetic steel group 1011, the contact breaking center of the moving contact and the stationary contact is relatively positioned between the left end and the right end of the magnetic steel group, namely, the contact breaking center of the moving contact and the stationary contact is positioned between the side magnetic steel groups 1012 at the two sides, and the magnetizing directions of the magnetic steel monomers of the side magnetic steel groups 1012 at the two sides are symmetrically arranged.
The magnetizing directions B of the two magnetic steel monomers 10 of the middle magnetic steel group 1011 of the first magnetic steel group 101 and the two magnetic steel monomers 10 of the middle magnetic steel group 1011 of the second magnetic steel group 102 are all directions extending from front to back and parallel to the connecting line at the centers of the two movable contacts 12.
The magnetizing directions C of the two magnetic steel monomers 10 of the side magnetic steel group 1012 on the left side of the first magnetic steel group 101 are the same as the magnetizing directions of the two magnetic steel monomers 10 of the side magnetic steel group 1012 on the right side of the second magnetic steel group 102, and magnetizing is performed in the direction of inclining from front to back and to the left side.
The magnetizing directions D of the two magnetic steel monomers 10 of the side magnetic steel group 1012 on the right side of the first magnetic steel group 101 are the same as the magnetizing directions of the two magnetic steel monomers 10 of the side magnetic steel group 1012 on the left side of the second magnetic steel group 102, and magnetizing is performed in the direction of inclining from front to back and to the right side. The magnetizing direction C and the magnetizing direction D are symmetrically arranged left and right.
Example 2
As shown in fig. 6 to 8, the present embodiment is different from embodiment 1 only in the magnetizing direction of a part of the magnetic steel unit 10.
The magnetizing directions E of the left magnetic steel monomers of the left magnetic steel group of the first magnetic steel group 101, the right magnetic steel monomers of the middle magnetic steel group 1011 of the first magnetic steel group 101, the left magnetic steel monomers of the middle magnetic steel group of the second magnetic steel group 102 and the right magnetic steel monomers of the right magnetic steel group of the second magnetic steel group 102 are all directions inclined from front to back and to the left.
The magnetizing directions F of the left magnetic steel monomer of the middle magnetic steel group 1011 of the first magnetic steel group 101, the right magnetic steel monomer of the right magnetic steel group 1012 of the first magnetic steel group 101, the left magnetic steel monomer of the left magnetic steel group of the second magnetic steel group 102 and the right magnetic steel monomer of the middle magnetic steel group of the second magnetic steel group 102 are all directions inclined from front to back and to the right. The magnetizing direction F and the magnetizing direction E are symmetrically arranged left and right.
The magnetizing directions G of the right side magnet steel monomers of the left side magnet steel group of the first magnet steel group 101, the left side magnet steel monomers of the right side magnet steel group 1012 of the first magnet steel group 101, the right side magnet steel monomers of the left side magnet steel group of the second magnet steel group 102 and the left side magnet steel monomers of the right side magnet steel group 1012 of the second magnet steel group 102 are the same, and the magnetizing directions G are directions which extend from front to back and are parallel to the connecting line at the centers of the two movable contacts 12.
Example 3
As shown in fig. 9 and 10, the present embodiment is different from embodiment 1 only in the magnetizing direction of a part of the magnetic steel unit 10.
The magnetizing directions H of the two magnetic steel monomers 10 of the middle magnetic steel group 1011 of the first magnetic steel group 101 and the two magnetic steel monomers 10 of the middle magnetic steel group 1011 of the second magnetic steel group 102 are all directions extending from front to back and parallel to the connecting line at the centers of the two movable contacts 12.
The magnetizing directions I of the left magnetic steel monomers of the left magnetic steel group of the first magnetic steel group 101 and the right magnetic steel monomers of the right magnetic steel group of the second magnetic steel group 102 are all directions from front to back and inclining to the left.
The magnetizing directions J of the right magnetic steel monomers of the right magnetic steel group of the first magnetic steel group 101 and the left magnetic steel monomers of the left magnetic steel group of the second magnetic steel group 102 are all directions inclined from front to back and to the right. The magnetizing direction I and the magnetizing direction J are symmetrically arranged.
The magnetizing directions K of the right magnetic steel monomers of the left magnetic steel group of the first magnetic steel group 101 and the left magnetic steel monomers of the right magnetic steel group of the second magnetic steel group 102 are all directions from left to right and are perpendicular to the connecting line at the center of the two movable contacts 12.
The magnetizing directions L of the left magnetic steel monomers of the side magnetic steel groups on the right side of the first magnetic steel group 101 and the right magnetic steel monomers of the side magnetic steel groups on the left side of the second magnetic steel group 102 are all directions from right to left and are perpendicular to the connecting line at the centers of the two movable contacts 12. The magnetizing direction L and the magnetizing direction K are symmetrically arranged.
Example 4
As shown in fig. 11 to 13, the present embodiment differs from embodiment 1 only in the magnetizing direction of a part of the magnetic steel unit 10.
The magnetizing directions M of the right side magnetic steel monomers of the side magnetic steel groups 1012 on the left side of the first magnetic steel group 101, the left side magnetic steel monomers of the side magnetic steel groups 1012 on the right side of the first magnetic steel group 101, the right side magnetic steel monomers of the side magnetic steel groups 1012 on the left side of the second magnetic steel group 102 and the left side magnetic steel monomers of the side magnetic steel groups 1012 on the right side of the second magnetic steel group 102 are the same, and the magnetizing directions M are directions which extend from front to back and are parallel to the connecting line at the centers of the two movable contacts 12.
The magnetizing directions N of the left magnetic steel monomers of the left magnetic steel group 1012 of the first magnetic steel group 101 and the right magnetic steel monomers of the right magnetic steel group 1012 of the right magnetic steel group 102 are all directions inclined from front to back and to the left.
The magnetizing directions O of the right magnetic steel monomers of the right magnetic steel group of the first magnetic steel group 101 and the left magnetic steel monomers of the left magnetic steel group of the second magnetic steel group 102 are all directions from front to back and inclined to the right. The magnetizing direction N and the magnetizing direction O are symmetrically arranged.
The magnetizing directions P of the left magnetic steel monomer of the middle magnetic steel group 1011 of the first magnetic steel group 101 and the right magnetic steel monomer of the middle magnetic steel group 1011 of the second magnetic steel group 102 are all directions from left to right and are perpendicular to the connecting line at the centers of the two movable contacts 12.
The magnetizing directions Q of the right magnetic steel monomer of the middle magnetic steel group 1011 of the first magnetic steel group 101 and the magnetizing direction Q of the left magnetic steel monomer of the middle magnetic steel group 1011 of the second magnetic steel group 102 are all directions from right to left and are perpendicular to the connecting line at the centers of the two movable contacts 12. The magnetizing direction P and the magnetizing direction Q are symmetrically arranged.
Example 5
As shown in fig. 14, the difference between the present embodiment and embodiment 1 is only that the magnetizing direction of the partial magnetic steel unit 10 is different and the placement position of the partial magnetic steel unit 10 is different.
The two magnetic steel monomers of the side magnetic steel group 1012 of this embodiment are stacked up and down.
The magnetizing directions R of the rear side magnet steel monomer of the side magnet steel group 1012 on the left side of the first magnet steel group 101, the rear side magnet steel monomer of the side magnet steel group 1012 on the right side of the first magnet steel group 101, the two magnet steel monomers of the middle magnet steel group of the first magnet steel group 101, the front side magnet steel monomer of the side magnet steel group 1012 on the left side of the second magnet steel group 102, the front side magnet steel monomer of the side magnet steel group 1012 on the right side of the second magnet steel group 102 and the two magnet steel monomers of the middle magnet steel group of the second magnet steel group 102 are the same, and the magnetizing directions R are directions extending from front to back and parallel to the connecting line at the centers of the two movable contacts 12.
The magnetizing directions S of the front side magnetic steel monomers of the side magnetic steel groups 1012 on the left side of the first magnetic steel group 101 and the rear side magnetic steel monomers of the side magnetic steel groups 1012 on the right side of the second magnetic steel group 102 are all directions from right to left and perpendicular to the connecting line at the centers of the two movable contacts 12.
The magnetizing directions T of the front side magnetic steel monomers of the side magnetic steel groups 1012 on the right side of the first magnetic steel group 101 and the rear side magnetic steel monomers of the side magnetic steel groups 1012 on the left side of the second magnetic steel group 102 are all directions from left to right and perpendicular to the connecting line at the centers of the two movable contacts 12. The magnetizing direction T and the magnetizing direction S are symmetrically arranged.
The invention can prolong the travel of the electric arc to avoid the electric arc damaging the arc barrier and the contact between the electric arc and the magnetic steel, thereby avoiding the demagnetization failure of the magnetic steel and ensuring the use of the relay to be more stable and the service life to be longer.
Claims (7)
1. A relay with enhanced magnetic field, characterized by: the magnetic steel assembly comprises a cavity for accommodating a contact group and a magnetic steel group, wherein at least one contact group consisting of a movable contact and a static contact is arranged in the cavity, at least one magnetic steel group is arranged beside the contact group in the cavity, the magnetic steel group consists of at least two magnetic steel monomers which are independent and close to each other, and the magnetic steel group comprises at least two magnetic steel monomers with different magnetizing directions; the number of the magnetic steel groups is two, the two magnetic steel groups are a first magnetic steel group and a second magnetic steel group, the first magnetic steel group and the second magnetic steel group are distributed on two sides of the contact group, and the first magnetic steel group and the second magnetic steel group respectively comprise two magnetic steel monomers with different magnetizing directions; the magnetic steel units of the first magnetic steel group and the second magnetic steel group respectively form three magnetic steel groups, the magnetic steel groups comprise a middle magnetic steel group and side magnetic steel groups positioned at the left side and the right side of the middle magnetic steel group, the contact breaking center of the movable contact and the stationary contact is positioned between the side magnetic steel groups at the two sides relatively, and the magnetizing directions of the side magnetic steel groups and the magnetic steel units at the two sides are symmetrically arranged leftwards and rightwards; the number of the magnetic steel monomers of the magnetic steel group is at least two.
2. The relay with enhanced magnetic field of claim 1, wherein: the magnetic steel monomers at two opposite sides of the magnetic steel group magnetize to the outer side of the magnetic steel group, or the magnetic steel monomers at two opposite sides of the magnetic steel group magnetize to the inner side of the magnetic steel group.
3. The relay with enhanced magnetic field of claim 2, wherein: the magnetizing directions of the magnetic steel monomers at two opposite sides of the magnetic steel group are symmetrically arranged.
4. The relay with enhanced magnetic field of claim 1, wherein: the number of the contact sets is two, the two contact sets comprise a first contact set and a second contact set which are arranged at intervals, two magnetic steel sets are respectively arranged on two opposite sides of the two contact sets, and a first magnetic steel set, a first contact set, a second contact set and a second magnetic steel set are sequentially arranged in the cavity along the front-back direction.
5. The relay with enhanced magnetic field of claim 1, wherein: when the magnetizing direction of one magnetic steel group of the first magnetic steel group extends along the front-back direction and inclines leftwards, the magnetizing direction of the magnetic steel group corresponding to the front-back direction of the second magnetic steel group extends along the front-back direction and inclines rightwards; when the magnetizing direction of one magnetic steel group of the first magnetic steel group extends along the front-back direction and inclines to the right, the magnetizing direction of the magnetic steel group corresponding to the front-back direction of the second magnetic steel group extends along the front-back direction and inclines to the left.
6. The relay with enhanced magnetic field of claim 1, wherein: when the magnetizing direction of one magnetic steel group of the first magnetic steel group extends leftwards, the magnetizing direction of the magnetic steel group corresponding to the front and back of the second magnetic steel group is opposite to the magnetizing direction of the first magnetic steel group so as to extend rightwards; when the magnetizing direction of one magnetic steel group of the first magnetic steel group extends rightward, the magnetizing direction of the magnetic steel group corresponding to the front and back of the second magnetic steel group is opposite to the magnetizing direction of the first magnetic steel group so as to extend leftward.
7. The relay with enhanced magnetic field of claim 1, wherein: when the magnetizing direction of one magnetic steel group of the first magnetic steel group extends along the front-back direction, the magnetizing direction of the second magnetic steel group is the same as that of the corresponding magnetic steel group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110605486.1A CN113380565B (en) | 2021-05-31 | 2021-05-31 | Relay with enhanced magnetic field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110605486.1A CN113380565B (en) | 2021-05-31 | 2021-05-31 | Relay with enhanced magnetic field |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113380565A CN113380565A (en) | 2021-09-10 |
| CN113380565B true CN113380565B (en) | 2024-04-12 |
Family
ID=77575239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110605486.1A Active CN113380565B (en) | 2021-05-31 | 2021-05-31 | Relay with enhanced magnetic field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113380565B (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11221611A (en) * | 1998-02-06 | 1999-08-17 | Nippon Steel Corp | Method for removing magnetic material on surface of steel sheet and device therefor |
| JP2000341930A (en) * | 1999-05-25 | 2000-12-08 | Hitachi Kiden Kogyo Ltd | Linear motor utilizing permanent magnet |
| JP2002369478A (en) * | 2001-06-05 | 2002-12-20 | Yaskawa Electric Corp | Permanent magnet type synchronous motor |
| WO2006125360A1 (en) * | 2005-05-19 | 2006-11-30 | Xiamen Hongfa Electroacoustic Co., Ltd. | A magnetic circuit of a electromagnetic relay and an operating method thereof |
| CN101969239A (en) * | 2010-07-09 | 2011-02-09 | 瑞声声学科技(深圳)有限公司 | Magnetic steel and motor using same |
| CN103187210A (en) * | 2011-12-30 | 2013-07-03 | Ls产电株式会社 | Dc power relay |
| KR20130079045A (en) * | 2012-01-02 | 2013-07-10 | 엘에스산전 주식회사 | Dc power relay |
| JP2014086206A (en) * | 2012-10-22 | 2014-05-12 | Toshiba Corp | Power switchgear and operation mechanism thereof |
| CN106549550A (en) * | 2015-09-23 | 2017-03-29 | 上海微电子装备有限公司 | A kind of linear electric motors, sports platform and lithographic equipment |
| CN208061757U (en) * | 2017-12-31 | 2018-11-06 | 宁波尼兰德磁业股份有限公司 | A kind of magnet for nuclear magnetic resonance equipment |
| KR102009875B1 (en) * | 2019-02-11 | 2019-08-12 | 주식회사 와이엠텍 | DC Bi-Directional Contact Device |
| CN209374356U (en) * | 2018-12-28 | 2019-09-10 | 厦门宏发电力电器有限公司 | DC relay with arc extinguishing and resistance to shorting function of current |
| CN209675160U (en) * | 2019-04-12 | 2019-11-22 | 贵州振华群英电器有限公司（国营第八九一厂） | A kind of magnetic-quenching arc-extinguishing device |
| CN210429606U (en) * | 2019-09-24 | 2020-04-28 | 中国电子科技集团公司第四十研究所 | Multifunctional arc-extinguishing device |
| WO2020094135A1 (en) * | 2018-11-09 | 2020-05-14 | 厦门宏发电力电器有限公司 | Direct-current relay resistant to short-circuit current |
| CN214672276U (en) * | 2021-05-31 | 2021-11-09 | 浙江英洛华新能源科技有限公司 | Relay with reinforced magnetic field |
| CN115769329A (en) * | 2020-06-29 | 2023-03-07 | Ls电气株式会社 | Arc path forming part and direct current relay including the same |
-
2021
- 2021-05-31 CN CN202110605486.1A patent/CN113380565B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11221611A (en) * | 1998-02-06 | 1999-08-17 | Nippon Steel Corp | Method for removing magnetic material on surface of steel sheet and device therefor |
| JP2000341930A (en) * | 1999-05-25 | 2000-12-08 | Hitachi Kiden Kogyo Ltd | Linear motor utilizing permanent magnet |
| JP2002369478A (en) * | 2001-06-05 | 2002-12-20 | Yaskawa Electric Corp | Permanent magnet type synchronous motor |
| WO2006125360A1 (en) * | 2005-05-19 | 2006-11-30 | Xiamen Hongfa Electroacoustic Co., Ltd. | A magnetic circuit of a electromagnetic relay and an operating method thereof |
| CN101969239A (en) * | 2010-07-09 | 2011-02-09 | 瑞声声学科技(深圳)有限公司 | Magnetic steel and motor using same |
| CN103187210A (en) * | 2011-12-30 | 2013-07-03 | Ls产电株式会社 | Dc power relay |
| KR20130079045A (en) * | 2012-01-02 | 2013-07-10 | 엘에스산전 주식회사 | Dc power relay |
| JP2014086206A (en) * | 2012-10-22 | 2014-05-12 | Toshiba Corp | Power switchgear and operation mechanism thereof |
| CN106549550A (en) * | 2015-09-23 | 2017-03-29 | 上海微电子装备有限公司 | A kind of linear electric motors, sports platform and lithographic equipment |
| CN208061757U (en) * | 2017-12-31 | 2018-11-06 | 宁波尼兰德磁业股份有限公司 | A kind of magnet for nuclear magnetic resonance equipment |
| WO2020094135A1 (en) * | 2018-11-09 | 2020-05-14 | 厦门宏发电力电器有限公司 | Direct-current relay resistant to short-circuit current |
| CN209374356U (en) * | 2018-12-28 | 2019-09-10 | 厦门宏发电力电器有限公司 | DC relay with arc extinguishing and resistance to shorting function of current |
| KR102009875B1 (en) * | 2019-02-11 | 2019-08-12 | 주식회사 와이엠텍 | DC Bi-Directional Contact Device |
| CN209675160U (en) * | 2019-04-12 | 2019-11-22 | 贵州振华群英电器有限公司（国营第八九一厂） | A kind of magnetic-quenching arc-extinguishing device |
| CN210429606U (en) * | 2019-09-24 | 2020-04-28 | 中国电子科技集团公司第四十研究所 | Multifunctional arc-extinguishing device |
| CN115769329A (en) * | 2020-06-29 | 2023-03-07 | Ls电气株式会社 | Arc path forming part and direct current relay including the same |
| CN214672276U (en) * | 2021-05-31 | 2021-11-09 | 浙江英洛华新能源科技有限公司 | Relay with reinforced magnetic field |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113380565A (en) | 2021-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102280313B (en) | Relay | |
| US12068121B2 (en) | Arc path forming part and direct-current relay comprising same | |
| CN112309775B (en) | Direct current contactor, distribution box, power battery assembly and vehicle | |
| US20240145196A1 (en) | Arc path forming unit and direct current relay comprising same | |
| CN214672276U (en) | Relay with reinforced magnetic field | |
| CN113380565B (en) | Relay with enhanced magnetic field | |
| CN215896208U (en) | High-voltage relay with reinforced magnetic field | |
| CN113380564B (en) | Relay with high magnetic field strength | |
| US20230290599A1 (en) | Arc path-forming part and direct current relay comprising same | |
| CN215069713U (en) | Relay with high magnetic field strength | |
| CN215183629U (en) | High-voltage relay with enhanced magnetic field | |
| CN216435800U (en) | High-voltage direct-current relay with short-circuit resisting structure | |
| CN109686619B (en) | Bidirectional magnetic field enhanced magnetic blowing device | |
| CN215869142U (en) | High-voltage direct-current relay capable of longitudinally arcing | |
| CN221201004U (en) | Arc extinguishing chamber | |
| US2890309A (en) | Multiple break electric switch | |
| CN219303592U (en) | Magnetic conduction block, magnetic blowing structure and circuit breaker | |
| CN220627644U (en) | Bridge type double-breakpoint contact independent arc extinguishing structure | |
| CN212113573U (en) | Arc extinguishing structure of bidirectional nonpolar direct current contactor | |
| CN212392187U (en) | Nonpolarity high voltage direct current contactor arc extinguishing system | |
| US20200111624A1 (en) | Switch device with improved permanent magnetic arc extinction | |
| CN218730688U (en) | Arc extinguishing structure of high-voltage direct-current relay | |
| CN117238709A (en) | Arc extinguishing chamber | |
| CN210429686U (en) | Contact system and direct current contactor comprising same | |
| CN117457453B (en) | Arc extinguishing structure of circuit breaker and circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |