CN113380564B - Relay with high magnetic field strength - Google Patents
Relay with high magnetic field strength Download PDFInfo
- Publication number
- CN113380564B CN113380564B CN202110603121.5A CN202110603121A CN113380564B CN 113380564 B CN113380564 B CN 113380564B CN 202110603121 A CN202110603121 A CN 202110603121A CN 113380564 B CN113380564 B CN 113380564B
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- magnetic steel
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- steel group
- magnet steel
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
Abstract
The invention relates to a relay, in particular to a relay with high magnetic field strength. The utility model provides a relay of high magnetic field intensity, its characterized in that is including the cavity that is used for holding basic magnet steel group, supplementary magnet steel group and contact group, at least one side in the relative both sides of contact group is equipped with basic magnet steel group, at least one side in another relative both sides of contact group is equipped with supplementary magnet steel group, basic magnet steel group comprises two at least mutually independent and magnet steel that press close to, and basic magnet steel group includes the different magnet steel of two at least magnetization directions, supplementary magnet steel group includes at least one magnet steel, the magnet steel of basic magnet steel group tip magnetizes to the direction in basic magnet steel group inboard or basic magnet steel group outside, the magnet steel of supplementary magnet steel group magnetizes along the magnetic force direction of the magnet steel of adjacent basic magnet steel group. The invention has the advantages of prolonging the stroke of the electric arc, avoiding the failure of the demagnetization of the magnetic steel, and ensuring more stable use and longer service life of the relay.
Description
Technical Field
The invention relates to a relay, in particular to a relay with high magnetic field strength.
Background
As shown in fig. 1, the conventional high voltage relay includes a housing, two left and right spaced stationary contacts and two moving contacts 12 are disposed in the housing, the moving contacts 12 are fixed to a moving spring 14, and a moving contact is disposed below each stationary contact. In order to realize arc extinction, the front side and the rear side in the shell are respectively provided with a magnetic steel 19, the magnetizing directions of the two magnetic steels 19 are A, and A is the magnetizing direction which extends forwards or backwards. When the movable contact and the static contact are disconnected in a contact mode, arcs are emitted from the contact positions of the movable contact and the static contact, the arcs move to the left end portion and the right end portion of the magnetic steel 19, namely the arcs move to the corner positions of an inner cavity formed by the shell, energy of the arcs is gradually dissipated in long-stroke movement, and accordingly arc extinction is achieved.
Fig. 2 is a magnetic circuit diagram of fig. 1, and fig. 3 is a diagram of a moving track of an arc after the movable and stationary contacts are separated in fig. 1 (the moving track of the arc is formed by a plurality of continuous dots in the diagram). The electric arc can contact with the magnet steel corner when removing, because the electric arc has high temperature, the magnet steel can demagnetize under the high temperature effect, can cause the magnet steel to become invalid. Some relays can set up the insulation board of being made by pottery or insulating plastic material between magnet steel and moving, stationary contact to avoid electric arc and magnet steel contact, but the electric arc of high temperature can strike the insulation board, and the insulation board can be impaired because of contacting with high temperature electric arc for a long time, and the insulation board exists can break or melt the condition of deformation and take place, still exists electric arc and magnet steel contact so that the condition of magnet steel demagnetization inefficacy takes place.
Disclosure of Invention
The invention aims to provide a relay with high magnetic field strength, which can improve the arc stroke to avoid the contact of an arc and magnetic steel so as to cause the magnetic steel to lose efficacy.
In order to realize the purpose, the invention adopts the following technical scheme: the utility model provides a relay of high magnetic field strength, is including being used for holding basic magnet steel group, supplementary magnet steel group and contact group's cavity, be equipped with in the cavity by moving, the contact group that the stationary contact constitutes, at least one side in the relative both sides of contact group is equipped with basic magnet steel group, at least one side in another relative both sides of contact group is equipped with supplementary magnet steel group, basic magnet steel group comprises two at least mutually independent and magnet steel that press close to, and basic magnet steel group is including two at least magnet steels that magnetize the direction difference, supplementary magnet steel group is including at least one magnet steel, the magnet steel of basic magnet steel group tip magnetizes to the inboard direction of basic magnet steel group or the outside direction of basic magnet steel group, the magnet steel of supplementary magnet steel group magnetizes along the magnetic force direction of the magnet steel of adjacent basic magnet steel group.
The basic magnetic steel group is provided with a plurality of magnetic steels, the magnetic steels have different magnetizing directions, the magnetic steels of the side magnetic steel group are magnetized along the direction inclined to the left or the right, so that magnetic lines of force of the basic magnetic steel group closer to the corners of the chamber are denser, the magnetic field intensity is higher, the moving direction and the stroke of an electric arc can be changed, the moving time and the moving distance of the electric arc are prolonged, the energy of the electric arc is further consumed, the electric arc with certain energy is prevented from contacting the magnetic steels or insulating plates on the outer sides of the magnetic steels, the insulating plates are prevented from being damaged, and the demagnetization of the magnetic steels is further avoided. The auxiliary magnetic steel set is arranged, so that magnetic lines of force at the corners of the chamber can be denser, the magnetic field strength at the corners of the chamber can be higher, the electric arc can move to the sides of the corners of the chamber, and the moving distance of the electric arc is prolonged. The basic magnetic steel group is positioned on the left side of the contact group, and when the magnetic steels of the basic magnetic steel group are sequentially arranged front and back, the rear side of the most front magnetic steel of the basic magnetic steel group is used as the inner side, the front side of the most front magnetic steel of the basic magnetic steel group is used as the outer side, the front side of the most rear magnetic steel of the basic magnetic steel group is used as the inner side, and the rear side of the most rear magnetic steel of the basic magnetic steel group is used as the outer side. The left side and the right side of the contact group are opposite sides, and the front side and the rear side of the contact group are second opposite sides, namely when the basic magnetic steel group is positioned on the left side or the rear side of the contact group, the auxiliary magnetic steel group is positioned on the front side or the rear side of the contact group.
Preferably, the magnetizing directions of the magnetic steels at the two opposite ends of the basic magnetic steel group are symmetrically arranged; the auxiliary magnetic steel sets are arranged on two sides of the other two opposite sides of the contact set, and the magnetizing directions of the magnetic steels of the auxiliary magnetic steel sets on the two opposite sides are opposite. The setting is so that the magnetic field intensity is stronger, the arc extinguishing effect is better, and the condition that the center of the magnetic field deviates from the moving contact and the static contact cannot occur.
Preferably, the basic magnetic steel group is composed of a middle magnetic steel group positioned in the middle and side magnetic steel groups positioned at two sides, magnetizing directions of the magnetic steels of the two side magnetic steel groups are symmetrically arranged, and the magnetizing direction of the magnetic steel of the auxiliary magnetic steel group is perpendicular to a symmetrical plane of the basic magnetic steel group. The arrangement is convenient for magnetizing the magnetic steel of the auxiliary magnetic steel group, and the moving trend of the electric arc to the end part side of the basic magnetic steel group is larger.
Preferably, the basic magnetic steel group is composed of a middle magnetic steel group located in the middle and side magnetic steels located on two sides, a second auxiliary magnetic steel is arranged on the side, away from the basic magnetic steel group, of the auxiliary magnetic steel group, the second auxiliary magnetic steel magnetizes the side of the basic magnetic steel group, and the basic magnetic steel group is provided with magnetic steels, wherein the magnetizing directions of the magnetic steels are opposite to those of the second auxiliary magnetic steel. The second auxiliary magnetic steel is arranged to straighten the magnetic force lines of the whole magnetic field, so that the moving stroke of the electric arc is longer.
Preferably, two contact sets and two basic magnetic steel sets are arranged in the chamber, an auxiliary magnetic steel set is arranged on the other two opposite sides of each of the two contact sets, and the second auxiliary magnetic steel is arranged between the two auxiliary magnetic steel sets on the same side.
Preferably, the magnetic steel of the auxiliary magnetic steel group is close to and in contact with the second auxiliary magnetic steel. The magnetic force lines are closer due to the arrangement, the second auxiliary magnetic steel can be made larger, and the influence effect on the magnetic field is better.
Preferably, the basic magnetic steel group is composed of a middle magnetic steel group positioned in the middle and side magnetic steel groups positioned on the left and right sides, a front contact group and a rear contact group and a front basic magnetic steel group and a rear basic magnetic steel group are arranged in the chamber, the two basic magnetic steel groups include a first basic magnetic steel group and a second basic magnetic steel group, auxiliary magnetic steel groups are arranged beside the two contact groups, each auxiliary magnetic steel group includes a first auxiliary magnetic steel group close to the first basic magnetic steel group and a second auxiliary magnetic steel group close to the second basic magnetic steel group, the magnetizing direction of the magnetic steel group on the left side of the first basic magnetic steel group is the same as that of the magnetic steel group on the right side of the second basic magnetic steel group, the magnetizing direction of the magnetic steel group on the right side of the first basic magnetic steel group is the same as that of the magnetic steel group on the left side of the second basic magnetic steel group, the magnetizing direction of the magnetic steel group on the left side of the first basic magnetic steel group is opposite to that of the magnetic steel group on the left side of the first basic magnetic steel group, and when the first auxiliary magnetic steel group and the second auxiliary magnetic steel group are positioned on the left side of the contact group; when the first auxiliary magnetic steel group and the second auxiliary magnetic steel group are respectively positioned at one of the left side and the right side of the contact group, the magnetizing direction of the magnetic steel of the first auxiliary magnetic steel group is the same as that of the magnetic steel of the second auxiliary magnetic steel group. The magnetizing directions of the opposite angles are the same, so that electric arcs generated by breaking of the two contact groups can be prevented from moving to the same side, and the temperatures of the left side and the right side in the chamber can be more uniform.
Preferably, when the basic magnetic steel group is positioned at the left side or the right side of the contact group, all the magnetic steels of the basic magnetic steel group are arranged in a front-back manner; when the basic magnetic steel group is positioned at the front side or the rear side of the contact group, all the magnetic steels of the basic magnetic steel group are arranged in a left-right mode. The arrangement makes the magnetic force lines more compact so as to improve the arc extinguishing effect.
The invention has the advantages of prolonging the stroke of the electric arc, avoiding the electric arc from damaging the flash barrier, avoiding the electric arc from contacting with the magnetic steel, avoiding the demagnetization failure of the magnetic steel, and ensuring that the relay is more stable to use and has longer service life.
Drawings
FIG. 1 is a schematic diagram of a conventional relay;
fig. 2 is a magnetic circuit diagram of the conventional relay shown in fig. 1;
FIG. 3 is a diagram showing the moving path of the arc after the movable and stationary contacts in FIG. 1 are broken;
FIG. 4 is a schematic diagram of a relay according to the present invention with the insulating cover removed;
FIG. 5 is a schematic diagram of the relay of FIG. 4 with the terminals and stationary contacts removed;
FIG. 6 is a top view of the electrical relay of FIG. 4 with terminals and stationary contacts removed;
FIG. 7 is a magnetic circuit diagram of the present invention;
fig. 8 is a graph of the travel path of the arc after breaking of the contact set in fig. 4.
Detailed Description
The invention is further described below with reference to the figures and specific embodiments.
As shown in fig. 4 to 8, the relay with high magnetic field strength of the present invention includes a yoke iron plate 11 and an insulating cover (not shown in the drawings), the yoke iron plate 11 and the insulating cover above the yoke iron plate 11 form a chamber for accommodating a contact group, a basic magnetic steel group and an auxiliary magnetic steel group, each contact group includes a movable contact 12 and a stationary contact 13 above the movable contact 12, the movable contacts are fixed on movable springs 14, the movable springs 14 are connected and fixed with a push rod 15 by a conventional relay structure, the front and rear stationary contacts 13 are respectively fixed on the lower side of a leading-out terminal 16, and the leading-out terminal 16 is fixed with the insulating cover by a conventional relay structure (not shown in the drawings).
The magnetic steels of the basic magnetic steel group and the magnetic steels of the auxiliary magnetic steel group are magnetized along the horizontal direction (the horizontal direction is relative to the moving and static contacts arranged up and down, and when the moving and static contacts are arranged left and right, all the magnetic steels are magnetized along the up and down direction).
The front side of the front side contact group and the rear side of the rear side contact group are respectively provided with a basic magnetic steel group, the left side and the right side of the two contact groups are respectively provided with an auxiliary magnetic steel group, and a second auxiliary magnetic steel 300 is arranged between the two left auxiliary magnetic steel groups and between the two right auxiliary magnetic steel groups. Basic magnet steel group comprises two at least mutually independent and magnet steel of pressing close to, and basic magnet steel group includes the different magnet steel of two at least directions of magnetizing, and supplementary magnet steel group includes a magnet steel, and the magnet steel of basic magnet steel group tip magnetizes to the inboard or the outside direction of basic magnet steel group, and the magnet steel of supplementary magnet steel group magnetizes along the magnetic force direction of the magnet steel of adjacent basic magnet steel group. Wherein, all the magnetic steels of the basic magnetic steel group are arranged in sequence from left to right.
The two basic magnetic steel groups are respectively a first basic magnetic steel group 101 and a second basic magnetic steel group 102, the second basic magnetic steel group 102 is located on the front side of the first basic magnetic steel group 101, and the four auxiliary magnetic steel groups comprise a first auxiliary magnetic steel group 103 located on the left front side, a second auxiliary magnetic steel group 104 located on the left rear side, a third auxiliary magnetic steel group 105 located on the right front side and a fourth auxiliary magnetic steel group 106 located on the right rear side. Wherein, one is arranged between the first auxiliary magnetic steel group 103 and the second auxiliary magnetic steel group 104, and between the third auxiliary magnetic steel group 105 and the fourth auxiliary magnetic steel group 106. The second auxiliary magnetic steel 300, and the magnetic steel of the auxiliary magnetic steel group is attached to the second auxiliary magnetic steel 300.
The magnetizing directions of the magnetic steels at the left and right ends of the first basic magnetic steel group 101 are arranged in a bilateral symmetry manner, the magnetizing directions of the magnetic steels at the left and right ends of the second basic magnetic steel group 102 are arranged in a bilateral symmetry manner, the magnetizing direction of the magnetic steel of the first auxiliary magnetic steel group 103 is opposite to that of the magnetic steel of the second auxiliary magnetic steel group 104, and the magnetizing direction of the magnetic steel of the third auxiliary magnetic steel group 105 is opposite to that of the magnetic steel of the fourth auxiliary magnetic steel group 106.
The first basic magnetic steel group 101 and the second basic magnetic steel group 102 are composed of a middle magnetic steel group 1011 located in the middle and side magnetic steel groups 1012 located on the left and right sides, and the magnetizing directions of the magnetic steels of the first auxiliary magnetic steel group 103, the second auxiliary magnetic steel group 104, the third auxiliary magnetic steel group 105, and the fourth auxiliary magnetic steel group 106 are all arranged along the left and right directions so as to be perpendicular to the symmetry plane of the basic magnetic steel groups. The magnetizing direction of the second auxiliary magnetic steel 300 is parallel to the symmetry plane of the basic magnetic steel group, and both the first basic magnetic steel group 101 and the second basic magnetic steel group 102 have magnetic steels opposite to the magnetizing direction of the second auxiliary magnetic steel 300.
The magnetic steels of the middle magnetic steel group 1011 of the first basic magnetic steel group 101 and the second basic magnetic steel group 102 are magnetized forward along the front-back direction, the magnetizing direction of the magnetic steels of the middle magnetic steel group 1011 is B, the magnetizing direction B is parallel to the connecting line of the centers of the two moving contacts 12, and the magnetizing direction B is the same as that of the magnetizing direction a in fig. 1.
The magnetizing directions of the magnetic steels of the two side magnetic steel groups 1012 are arranged in bilateral symmetry, the magnetic steel of the side magnetic steel group 1012 on the left side of the first basic magnetic steel group 101 is magnetized to the left front, and the magnetic steel of the side magnetic steel group 1012 on the right side of the second basic magnetic steel group 102 is magnetized to the left front. The magnetizing direction of the magnetic steel of the left side magnetic steel grouping 1012 of the first basic magnetic steel group 101 is C.
The magnetic steel of the side magnetic steel grouping 1012 on the right side of the first basic magnetic steel group 101 is magnetized to the right front, and the magnetic steel of the side magnetic steel grouping 1012 on the left side of the second basic magnetic steel group 102 is magnetized to the right front. The magnetizing direction of the magnetic steel of the side magnetic steel grouping 1012 on the right side of the first basic magnetic steel group 101 is D, and C and D are arranged in bilateral symmetry.
The magnetizing direction of the magnetic steel of the first auxiliary magnetic steel group 103 and the magnetizing direction of the magnetic steel of the fourth auxiliary magnetic steel group 106 are E, and E is a direction for magnetizing to the right. The magnetizing directions of the magnetic steels of the second auxiliary magnetic steel group 104 and the third auxiliary magnetic steel group 105 are both F, and F is the leftward magnetizing direction. E and F are arranged in bilateral symmetry.
The second auxiliary magnetic steel 300 is magnetized backward, the magnetizing direction of the second auxiliary magnetic steel 300 is G, and G and B are symmetrically arranged in front and back.
Wherein, basic magnet steel group is equipped with insulating board 17 with the contact interblock, and insulating board 17 is close to basic magnet steel group and partly surrounds basic magnet steel group circumference side. And magnetic isolation plates 18 made of magnetic materials are arranged on the outer sides of the basic magnetic steel group far away from the contact group and the outer sides of the auxiliary magnetic steel group far away from the contact group.
The invention has the advantages of prolonging the stroke of the electric arc, avoiding the electric arc from damaging the flash barrier, avoiding the electric arc from contacting with the magnetic steel, avoiding the demagnetization failure of the magnetic steel, and ensuring that the relay is more stable to use and has longer service life.
Claims (8)
1. The utility model provides a relay of high magnetic field intensity, its characterized in that is including the cavity that is used for holding basic magnet steel group, supplementary magnet steel group and contact group, be equipped with in the cavity by moving, the contact group that the stationary contact constitutes, at least one side in the relative both sides of contact group is equipped with basic magnet steel group, at least one side in another relative both sides of contact group is equipped with supplementary magnet steel group, basic magnet steel group comprises two at least mutually independent and the magnet steel of pressing close to, and basic magnet steel group includes the different magnet steel of two at least magnetization directions, supplementary magnet steel group includes at least one magnet steel, the magnet steel of basic magnet steel group tip magnetizes to the inboard direction of basic magnet steel group or the outside of basic magnet steel group, the magnet steel of supplementary magnet steel group magnetizes along the magnetic force direction of the magnet steel of adjacent basic magnet steel group.
2. The relay with high magnetic field strength according to claim 1, wherein the basic magnetic steel group is symmetrically arranged relative to the magnetizing directions of the magnetic steels at two ends; the auxiliary magnetic steel sets are arranged on two sides of the other two opposite sides of the contact set, and the magnetizing directions of the magnetic steels of the auxiliary magnetic steel sets on the two opposite sides are opposite.
3. The relay with high magnetic field strength according to claim 1, wherein the basic magnetic steel group is composed of a middle magnetic steel group located in the middle and side magnetic steel groups located at both sides, magnetizing directions of the magnetic steels of the two side magnetic steel groups are symmetrically arranged, and magnetizing directions of the magnetic steels of the auxiliary magnetic steel group are perpendicular to a symmetrical plane of the basic magnetic steel group.
4. The relay of claim 1, wherein the basic magnetic steel set is composed of a middle magnetic steel group located in the middle and side magnetic steel groups located at both sides, the side of the auxiliary magnetic steel set away from the basic magnetic steel set is provided with a second auxiliary magnetic steel, the second auxiliary magnetic steel charges the side of the basic magnetic steel set, and the basic magnetic steel set has a magnetic steel with a charging direction opposite to that of the second auxiliary magnetic steel.
5. The high magnetic field strength relay according to claim 4, wherein two contact sets and two basic magnetic steel sets are disposed in the chamber, an auxiliary magnetic steel set is disposed on the other opposite sides of the two contact sets, and the second auxiliary magnetic steel is disposed between the two auxiliary magnetic steel sets on the same side.
6. A relay with high magnetic field strength according to claim 4 or 5, wherein the magnetic steel of the auxiliary magnetic steel set is close to and in contact with the second auxiliary magnetic steel.
7. The relay with high magnetic field strength according to claim 4, wherein the basic magnetic steel group is composed of a middle magnetic steel group located in the middle and side magnetic steel groups located on the left and right sides, a front and a rear two contact groups and a front and a rear two basic magnetic steel groups are arranged in the chamber, the two basic magnetic steel groups include a first basic magnetic steel group and a second basic magnetic steel group, auxiliary magnetic steel groups are arranged beside the two contact groups, the auxiliary magnetic steel groups include a first auxiliary magnetic steel group adjacent to the first basic magnetic steel group and a second auxiliary magnetic steel group adjacent to the second basic magnetic steel group, the magnetic steel magnetizing direction of the side magnetic steel group on the left side of the first basic magnetic steel group is the same as that of the side magnetic steel group on the right side of the second basic magnetic steel group, the magnetic steel magnetizing direction of the side magnetic steel group on the right side of the first basic magnetic steel group is the same as that of the side magnetic steel group on the left side of the second basic magnetic steel group, the magnetic steel magnetizing direction of the side magnetic steel group on the left side of the first basic magnetic steel group is opposite to that of the auxiliary magnetic steel group when the first and the second auxiliary magnetic steel groups are located on the left and right sides of the auxiliary magnetic steel groups; when the first auxiliary magnetic steel group and the second auxiliary magnetic steel group are respectively positioned at one of the left side and the right side of the contact group, the magnetizing direction of the magnetic steel of the first auxiliary magnetic steel group is the same as that of the magnetic steel of the second auxiliary magnetic steel group.
8. The relay of claim 1, wherein when the basic magnetic steel set is located at the left side or the right side of the contact set, all the magnetic steels of the basic magnetic steel set are arranged in a front-back manner; when the basic magnetic steel group is positioned at the front side or the rear side of the contact group, all the magnetic steels of the basic magnetic steel group are arranged in a left-right mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110603121.5A CN113380564B (en) | 2021-05-31 | 2021-05-31 | Relay with high magnetic field strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110603121.5A CN113380564B (en) | 2021-05-31 | 2021-05-31 | Relay with high magnetic field strength |
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| Publication Number | Publication Date |
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| CN113380564A CN113380564A (en) | 2021-09-10 |
| CN113380564B true CN113380564B (en) | 2022-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110603121.5A Active CN113380564B (en) | 2021-05-31 | 2021-05-31 | Relay with high magnetic field strength |
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| JP2000164103A (en) * | 1998-11-30 | 2000-06-16 | Matsushita Electric Works Ltd | Electromagnetic relay |
| WO2011072593A1 (en) * | 2009-12-17 | 2011-06-23 | 厦门宏发电声股份有限公司 | Magnet holding relay with improved magnetic path structure |
| JP2012142231A (en) * | 2011-01-05 | 2012-07-26 | Fujitsu Component Ltd | Permanent magnet actuation type switch |
| CN103000454A (en) * | 2012-11-23 | 2013-03-27 | 哈尔滨工业大学 | Novel-structure electromagnetic relay containing permanent magnet |
| CN204760327U (en) * | 2015-06-26 | 2015-11-11 | 厦门宏发电力电器有限公司 | Box -like electromagnetic relay of bat that can be used for high voltage DC |
| WO2018024167A1 (en) * | 2016-08-01 | 2018-02-08 | 厦门宏发电力电器有限公司 | Arc extinguishing magnetic circuit and direct current relay thereof |
| CN111755285A (en) * | 2019-03-28 | 2020-10-09 | 浙江英洛华新能源科技有限公司 | High-efficient arc-extinguishing relay |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8068002B2 (en) * | 2008-04-22 | 2011-11-29 | Magvention (Suzhou), Ltd. | Coupled electromechanical relay and method of operating same |
| JP6406596B2 (en) * | 2014-05-12 | 2018-10-17 | パナソニックＩｐマネジメント株式会社 | Contact device |
| JP7313168B2 (en) * | 2019-03-19 | 2023-07-24 | 富士通コンポーネント株式会社 | electromagnetic relay |
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2021
- 2021-05-31 CN CN202110603121.5A patent/CN113380564B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000164103A (en) * | 1998-11-30 | 2000-06-16 | Matsushita Electric Works Ltd | Electromagnetic relay |
| WO2011072593A1 (en) * | 2009-12-17 | 2011-06-23 | 厦门宏发电声股份有限公司 | Magnet holding relay with improved magnetic path structure |
| JP2012142231A (en) * | 2011-01-05 | 2012-07-26 | Fujitsu Component Ltd | Permanent magnet actuation type switch |
| CN103000454A (en) * | 2012-11-23 | 2013-03-27 | 哈尔滨工业大学 | Novel-structure electromagnetic relay containing permanent magnet |
| CN204760327U (en) * | 2015-06-26 | 2015-11-11 | 厦门宏发电力电器有限公司 | Box -like electromagnetic relay of bat that can be used for high voltage DC |
| WO2018024167A1 (en) * | 2016-08-01 | 2018-02-08 | 厦门宏发电力电器有限公司 | Arc extinguishing magnetic circuit and direct current relay thereof |
| CN111755285A (en) * | 2019-03-28 | 2020-10-09 | 浙江英洛华新能源科技有限公司 | High-efficient arc-extinguishing relay |
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| CN113380564A (en) | 2021-09-10 |
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