CN110620022A - High-voltage large-current magnetic force maintaining vacuum relay - Google Patents
High-voltage large-current magnetic force maintaining vacuum relay Download PDFInfo
- Publication number
- CN110620022A CN110620022A CN201910917237.9A CN201910917237A CN110620022A CN 110620022 A CN110620022 A CN 110620022A CN 201910917237 A CN201910917237 A CN 201910917237A CN 110620022 A CN110620022 A CN 110620022A
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- Prior art keywords
- contact
- movable contact
- electromagnetic component
- assembly
- electromagnetic
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
- H01H50/641—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/01—Relays in which the armature is maintained in one position by a permanent magnet and freed by energisation of a coil producing an opposing magnetic field
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
Abstract
The invention discloses a high-voltage large-current magnetic force maintaining vacuum relay which comprises a shell, wherein a first electromagnetic assembly and a second electromagnetic assembly are arranged in the shell, a magnetic movable contact assembly is movably arranged between the first electromagnetic assembly and the second electromagnetic assembly and comprises a movable contact, the first electromagnetic assembly and the second electromagnetic assembly generate magnetic fields in opposite directions when current passes through the first electromagnetic assembly and the second electromagnetic assembly, and the first electromagnetic assembly is provided with a fixed contact. The invention can bear high voltage and heavy current, and can control the quick contact or separation between the movable contact and the fixed contact by arranging the first electromagnetic assembly and the second electromagnetic assembly, thereby avoiding the electric arc generated by overlong time when the clearance between the movable contact and the fixed contact is small, and prolonging the service life of the relay.
Description
Technical Field
The invention relates to the technical field of relays, in particular to a high-voltage large-current magnetic force maintaining vacuum relay.
Background
The electromagnetic relay is generally composed of an electromagnet, an armature, a spring piece, a contact and the like, can realize remote control and automatic control, and as long as certain voltage is applied to two ends of a coil, certain current flows in the coil, so that an electromagnetic effect is generated, the armature overcomes the tension of a return spring and is attracted to an iron core under the attraction effect of electromagnetic force, and then the movable contact of the armature is driven to be in contact with a fixed contact (normally open contact). When the coil is powered off, the electromagnetic attraction force disappears, and the armature returns to the original position under the counterforce of the spring, so that the movable contact is separated from the original fixed contact (normally closed contact). Thus, the purpose of conducting and cutting off in the circuit is achieved.
The existing electromagnetic relay achieves the effect of controlling a circuit switch by the fact that magnetism and magnetism disappear when an electromagnet is electrified and deenergized, and the existing electromagnetic relay and an armature iron with a contact are attracted due to the magnetism. The electrons move at high speed and collide with neutral gas molecules, ionizing them. After ionization, positive ions move to the cathode, impact the surface of the cathode to increase the temperature of the cathode, further form thermionic emission and participate in impact ionization, so that a large number of charged particles are formed between electrodes, and gas is conducted to form a hot electron flow, namely an electric arc. The contact can be burnt by electric arc generated in the relay, so that the service life of the relay is shortened, and even the relay cannot be normally used.
Disclosure of Invention
Aiming at the defects of the prior art, the high-voltage large-current magnetic force maintaining vacuum relay is provided, high-voltage large current can be borne, the first electromagnetic assembly and the second electromagnetic assembly are arranged, the rapid contact or separation between the movable contact and the fixed contact can be controlled, the phenomenon that electric arc is generated due to overlong time when the gap between the movable contact and the fixed contact is small is avoided, and the service life of the relay is prolonged.
In order to achieve the above object, the present invention provides the following technical solutions.
The high-voltage large-current magnetic force maintaining vacuum relay comprises a shell, wherein a first electromagnetic assembly and a second electromagnetic assembly are arranged in the shell, a magnetic movable contact assembly is movably arranged between the first electromagnetic assembly and the second electromagnetic assembly, the movable contact assembly comprises a movable contact, the first electromagnetic assembly and the second electromagnetic assembly generate magnetic fields in opposite directions when current passes through the first electromagnetic assembly and the second electromagnetic assembly, the first electromagnetic assembly is provided with a fixed contact, when the first electromagnetic assembly and the second electromagnetic assembly pass through the current, the movable contact assembly moves to the first electromagnetic assembly and enables the movable contact to be in contact with the fixed contact or moves to the second electromagnetic assembly and enables the movable contact to be separated from the fixed contact, and when the direction of the current passing through the first electromagnetic assembly and the second electromagnetic assembly is changed, the movable contact assembly moves to the second electromagnetic assembly and enables the movable contact to be separated from the fixed contact or the movable contact assembly to move To the first electromagnetic assembly and to bring the movable contact into contact with the fixed contact.
The invention has the beneficial effects that: by arranging the first electromagnetic assembly and the second electromagnetic assembly, when the first electromagnetic assembly and the second electromagnetic assembly pass through the current, the first electromagnetic assembly and the second electromagnetic assembly generate magnetic fields in opposite directions, so that the direction of the magnetic field generated by one of the electromagnetic assemblies is the same as that of the magnetic field of the movable contact assembly, and accordingly, repulsion is generated on the movable contact assembly, the direction of the magnetic field generated by the other of the electromagnetic assemblies is opposite to that of the magnetic field of the movable contact assembly, and accordingly, attraction is generated on the movable contact assembly, because the movable contact assembly is movably arranged between the first electromagnetic assembly and the second electromagnetic assembly, the repulsion and the attraction generated by the two magnetic fields are in the same direction when acting on the movable contact assembly, so that the movable contact assembly can rapidly move, the movable contact is rapidly contacted with or separated from the fixed contact, and when the contact state between the movable contact and the fixed contact needs to be changed, the magnetic fields generated by the first electromagnetic assembly and the second electromagnetic assembly are changed by changing the direction of current passing through the first electromagnetic assembly and the second electromagnetic assembly, so that the direction of the magnetic field generated by one of the electromagnetic assemblies is changed from the original direction of the magnetic field which is the same as that of the movable contact assembly to the direction which is opposite to that of the magnetic field of the movable contact assembly, so that the acting force generated on the movable contact assembly is changed from repulsion force to attraction force, the direction of the magnetic field generated by the other electromagnetic assembly is changed from the original direction which is opposite to that of the magnetic field of the movable contact assembly to the same direction of the magnetic field which is the same as that of the movable contact assembly, so that the acting force generated on the movable contact assembly is changed from attraction force to repulsion force, the acting force of the two magnetic fields on the movable contact assembly is opposite to the original acting force, so that the moving, the magnetic fields generated by the two electromagnetic assemblies simultaneously generate acting force on the movable contact assembly, so that the movable contact and the fixed contact can be quickly contacted or separated, the phenomenon that electric arcs are generated due to overlong time when the gap between the movable contact and the fixed contact is small is avoided, and the service life of the relay is prolonged.
As an improvement of the present invention, the movable contact assembly further includes a first mounting seat, a second mounting seat, a first magnet and a second magnet, the first mounting seat and the second mounting seat are in insertion fit, the movable contact is located between the first mounting seat and the second mounting seat, the first magnet is mounted in the first mounting seat, and the second magnet is mounted in the second mounting seat. Through the improvement, the movable contact assembly is made to have magnetism.
As an improvement of the invention, a first insulating gasket is arranged between the movable contact and the first mounting seat, and a second insulating gasket is arranged between the movable contact and the second mounting seat. Through the improvement, the movable contact is insulated from the first mounting seat and the second mounting seat.
As a modification of the invention, the movable contact comprises a base body and a contact point arranged on the base body, the base body is annular, a plurality of mounting arms extend outwards from the periphery of the base body, and the contact point is arranged on the mounting arms.
As an improvement of the present invention, a first connecting seat and a second connecting seat are further disposed in the housing, the first electromagnetic assembly is disposed in the first connecting seat, the second electromagnetic assembly is disposed in the second connecting seat, the fixed contact is disposed on the first connecting seat, and the movable contact is movably disposed between the first connecting seat and the second connecting seat. Through the improvement, the assembly of the whole relay is convenient.
As an improvement of the invention, a positioning column is arranged on the fixed contact, a positioning hole matched with the positioning column is arranged on the first connecting seat, and the positioning column passes through the positioning hole and is connected with a wiring board. Through the improvement, the fixed contact is convenient to position and install and the fixed contact is convenient to connect with the wiring board.
As an improvement of the invention, the second connecting seat extends along the circumference in the direction of the first connecting seat and is provided with a plurality of bulges, and a guide groove matched with the mounting arm is formed between every two adjacent bulges. Through the improvement, the moving of the movable contact is more stable.
As an improvement of the present invention, the first electromagnetic assembly includes a first coil including a first bobbin and a first coil wound on the first bobbin, and the second electromagnetic assembly includes a second coil including a second bobbin and a second coil wound on the second bobbin. Through the improvement, when current passes through the first coil, the first coil generates a magnetic field, when the direction of the current is changed, the direction of the magnetic field generated by the first coil is changed, when current passes through the second coil, the second coil generates a magnetic field, and when the direction of the current is changed, the direction of the magnetic field generated by the second coil is changed.
As an improvement of the present invention, the first electromagnetic assembly further includes a first magnetic steel, the first magnetic steel is disposed in the first bobbin, and the second electromagnetic assembly further includes a second magnetic steel, the second magnetic steel is disposed in the second bobbin. Through the improvement, the first electromagnetic assembly and the second electromagnetic assembly can always have the magnetic field.
As an improvement of the present invention, the first electromagnetic assembly further includes a first magnetic yoke, the first magnetic yoke is sleeved outside the first solenoid, the second electromagnetic assembly further includes a second magnetic yoke, and the second magnetic yoke is sleeved outside the second solenoid. By providing the first yoke and the second yoke, magnetic diffusion is prevented.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the present invention with the housing removed.
Fig. 3 is a cross-sectional view of fig. 2 in the present invention.
Fig. 4 is a schematic view of fig. 2 with the first and second connecting seats removed.
Fig. 5 is a schematic diagram of the moving contact structure of the present invention.
FIG. 6 is a schematic diagram of a first electromagnetic assembly of the present invention.
FIG. 7 is a schematic diagram of a second electromagnetic assembly of the present invention.
Fig. 8 is a schematic structural diagram of the first connecting seat of the present invention.
Fig. 9 is a schematic view of a second connecting seat structure of the present invention.
In the figure, 1, a housing; 2. a movable contact; 2.1, a substrate; 2.2, mounting an arm; 2.3, contact points; 3. a fixed contact; 3.1, positioning columns; 4. a first electromagnetic assembly; 4.1, a first coil; 4.2, first magnetic steel; 4.3, a first magnetic yoke; 5. a second electromagnetic assembly; 5.1, a second coil; 5.2, second magnetic steel; 5.3, a second magnetic yoke; 6. a first mounting seat; 7. a second mounting seat; 8. a first magnet; 9. a second magnet; 10. a first insulating pad; 11. a second insulating spacer; 12. a first connecting seat; 12.1, positioning holes; 13. a second connecting seat; 13.1, a bulge; 13.2, a guide groove; 14. a patch panel.
Detailed Description
The invention is further explained with reference to the drawings.
Referring to fig. 1 to 9, the high-voltage large-current magnetic force maintaining vacuum relay includes a housing 1, the housing 1 has a mounting cavity, a first electromagnetic assembly 4 and a second electromagnetic assembly 5 are arranged in the housing 1, a magnetic movable contact assembly is arranged between the first electromagnetic assembly 4 and the second electromagnetic assembly 5, a movable contact 2 is movably arranged between the first electromagnetic assembly 4 and the second electromagnetic assembly 5, the first electromagnetic assembly 4 includes a first coil pack 4.1, the first coil pack 4.1 includes a first coil frame and a first coil wound on the first coil frame, the second electromagnetic assembly 5 includes a second coil pack 5.1, and the second coil pack 5.1 includes a second coil frame and a second coil wound on the second coil frame, in this embodiment, a winding direction of the first coil is opposite to a winding direction of the second coil, so that when the same current passes through the first coil and the second coil, in another embodiment, the winding direction of the first coil may be the same as the winding direction of the second coil, and two currents with opposite directions may pass through the first coil and the second coil, respectively, at which time the first coil and the second coil may also generate magnetic fields with opposite directions.
The movable contact assembly comprises a movable contact 2, a first mounting seat 6, a second mounting seat 7, a first magnet 8 and a second magnet 9, the movable contact 2 comprises a base body 2.1 and a contact point 2.3 arranged on the base body 2.1, the base body 2.1 is annular, a plurality of mounting arms 2.2 extend outwards from the periphery of the base body 2.1, the mounting arms 2.2 are distributed on the periphery of the base body 2.1 along the circumference, the contact point 2.3 is arranged on the mounting arm 2.2, the first connecting seat 12 and the second connecting seat 13 are connected by inserting fit, the base body 2.1 of the movable contact 2 is arranged between the first connecting seat 12 and the second connecting seat 13, the first magnet 8 is arranged in the first mounting seat 6, the second magnet 9 is installed in the second installation seat 7, the first magnet 8 and the second magnet 9 are both magnetic steel made of an alnico material, and the moving contact assembly is made to be magnetic through the first magnet 8 and the second magnet 9.
A first insulating gasket 10 is arranged between the movable contact 2 and the first mounting seat 6 to insulate the movable contact 2 and the first mounting seat 6, a second insulating gasket 11 is arranged between the movable contact 2 and the second mounting seat 7 to insulate the movable contact 2 and the second mounting seat 7, and the movable contact 2 and the fixed contact 3 are contacted to conduct a circuit, so that the circuit is prevented from being transmitted to other parts of the relay through insulation treatment, and electric leakage is avoided.
The first electromagnetic assembly 4 is provided with a fixed contact 3, the fixed contact 3 is correspondingly annular, the fixed contact 3 is connected with a wiring board 14, and the wiring board 14 is used for being connected with a circuit wire. By arranging a plurality of mounting arms 2.2 and a plurality of contact points 2.3 on each mounting arm 2.2, the contact area between the movable contact 2 and the fixed contact 3 is large, and high voltage and high current can be borne.
When current flows through the first coil in the first electromagnetic assembly 4 and the second coil in the second electromagnetic assembly 5, the first coil of the first electromagnetic assembly 4 and the second coil of the second electromagnetic assembly 5 generate magnetic fields in opposite directions, if the direction of the magnetic field generated by the first coil is the same as that of the magnetic field of the movable contact assembly at the moment, and the direction of the magnetic field generated by the second coil is opposite, the magnetic field generated by the first coil generates repulsion to the movable contact assembly, the magnetic field generated by the second coil generates attraction to the movable contact assembly, and the movable contact assembly moves towards the direction of the second electromagnetic assembly 5, so that the movable contact 2 is separated from the fixed contact 3; if the direction of the magnetic field generated by the first coil is opposite to the direction of the magnetic field of the movable contact assembly at the moment, and the direction of the magnetic field generated by the second coil is the same as the direction of the magnetic field of the movable contact assembly, the magnetic field generated by the first coil generates attraction to the movable contact assembly, the magnetic field generated by the second coil generates repulsion to the movable contact assembly, the movable contact assembly moves towards the direction of the first electromagnetic assembly 4, so that the movable contact 2 is contacted with the fixed contact 3, and because the movable contact assembly is positioned between the first electromagnetic assembly 4 and the second electromagnetic assembly 5, the repulsion and the attraction generated by the two magnetic field pairs are in the same direction when acting on the movable contact assembly, so that the movable contact 2 can be rapidly contacted with or separated from the fixed contact 3.
When the contact state between the movable contact 2 and the fixed contact 3 needs to be changed, the magnetic fields generated by the first electromagnetic assembly 4 and the second electromagnetic assembly 5 are changed by changing the current directions passed by the first electromagnetic assembly 4 and the second electromagnetic assembly 5, so that the direction of the magnetic field generated by one of the electromagnetic assemblies is changed from the original direction which is the same as the magnetic field of the movable contact assembly to the direction which is opposite to the magnetic field of the movable contact assembly, the action force generated on the movable contact assembly is changed from repulsion force to attraction force, the direction of the magnetic field generated by the other electromagnetic assembly is changed from the original direction which is opposite to the magnetic field of the movable contact assembly to the direction which is the same as the magnetic field of the movable contact assembly, the action force generated on the movable contact assembly is changed from attraction force to repulsion force, the action force of the two magnetic fields on the movable contact assembly is opposite to the original action force, and, the movable contact 2 and the fixed contact 3 are changed from contact or separation to separation or contact. The magnetic field that produces through two electromagnetism subassemblies produces the effort to the movable contact subassembly simultaneously for can the high-speed contact or separate between movable contact 2 and the fixed contact 3, avoid between movable contact 2 and the fixed contact 3 when the clearance less time keep the overlength and produce electric arc, prolonged the life of relay, the relay can bear high-pressure heavy current, through switching current, alright fast switch over the break-make between movable contact 2 and the fixed contact.
As an improvement of the present invention, the first electromagnetic assembly 4 further includes a first magnetic steel 4.2, the first magnetic steel 4.2 is disposed in the first coil frame, the second electromagnetic assembly 5 further includes a second magnetic steel 5.2, the second magnetic steel 5.2 is disposed in the second coil frame, the first magnetic steel 4.2 and the second magnetic steel 5.2 are both made of alnico alloy material, the first magnetic steel 4.2 and the second magnetic steel 5.2 both have a certain magnetic field, and the first magnetic steel 4.2 is magnetized when the first coil is energized, so that the magnetic field direction of the first magnetic steel 4.2 is the same as the magnetic field direction of the first electromagnetic assembly 4, the second magnetic steel 5.2 is magnetized when the second coil is energized, so that the magnetic field direction of the second magnetic steel 5.2 is the same as the magnetic field direction of the second electromagnetic assembly 5, so that the first magnetic steel 4.2 and the second magnetic steel 5.2 both can generate attraction force to the moving contact 2, but the first magnetic steel 4.2 and the second magnetic steel 5.2 can not generate attraction force to the moving contact 2, only when the movable contact assembly moves to the first electromagnetic assembly 4 or the second electromagnetic assembly 5 due to the magnetic field action of the first coil and the second coil, the movable contact assembly can be adsorbed by the first magnetic steel 4.2 or the second magnetic steel 5.2. Specifically, when the moving contact assembly moves to the first electromagnetic assembly 4 due to the magnetic field effect of the first coil and the second coil, the first electromagnetic assembly 4 and the second electromagnetic assembly 5 are powered off, due to the existence of the first magnetic steel 4.2 and the second magnetic steel 5.2, the first magnetic steel 4.2 generates attraction force to the moving contact assembly, the second magnetic steel 5.2 generates repulsion force to the moving contact assembly, the moving contact assembly can be adsorbed by the first magnetic steel 4.2, so that the moving contact assembly can keep the state in the power-off state, the moving contact 2 is contacted with the fixed contact 3, when the moving contact assembly moves to the second electromagnetic assembly 5 due to the magnetic field effect of the first coil and the second coil, the first magnetic steel 4.2 generates repulsion force to the moving contact assembly, the second magnetic steel 5.2 generates attraction force to the moving contact assembly, the movable contact component can be adsorbed by the second magnetic steel 5.2, so that the movable contact component can keep the power-off state, the movable contact 2 is separated from the fixed contact 3, and the movable contact 2 can still keep the power-off state of the first electromagnetic component 4 and the second electromagnetic component 5 with the fixed contact 3 by arranging the first magnetic steel 4.2 and the second magnetic steel 5.2.
The first electromagnetic assembly 4 further comprises a first magnetic yoke 4.3, the first magnetic yoke 4.3 is sleeved outside the first solenoid 4.1, by arranging the first yoke 4.3, the magnetic field generated by the first coil can be prevented from diffusing, so that the magnetic field generated by the first coil can be concentrated, the action effect on the moving contact 2 is better, the second electromagnetic component 5 also comprises a second magnetic yoke 5.3, the second magnetic yoke 5.3 is sleeved outside the second wire package 5.1, by providing the second yoke 5.3, the magnetic field generated by the second coil can be prevented from being diffused, so that the magnetic field generated by the second coil can be concentrated, the action effect on the movable contact 2 is better, the first solenoid 4.1 is fixed in the first magnetic yoke 4.3 by glue, the second solenoid 5.1 is fixed in the second magnetic yoke 5.3 by glue, when the first coil and the second coil are electrified to generate a magnetic field, the first wire package 4.1 and the second wire package 5.1 are fixed, so that the first wire package 4.1 and the second wire package 5.1 can be prevented from moving relatively.
The movable contact assembly is characterized in that a first guide hole matched with the first installation seat 6 is formed in the first magnet yoke 4.3, a second guide hole matched with the second installation seat 7 is formed in the second magnet yoke 5.3, the first installation seat 6 extends into the first guide hole, the second installation seat 7 extends into the second guide hole, when the movable contact assembly moves between the first electromagnetic assembly 4 and the second electromagnetic assembly 5 in a reciprocating mode, the first installation seat 6 is guided through the first guide hole, and the second installation seat 7 is guided through the second guide hole, so that the movable contact assembly moves more stably, deviation is not prone to occurring, and contact and separation of the movable contact 2 and the fixed contact 3 are guaranteed.
As a modification of the present invention, a first connecting seat 12 and a second connecting seat 13 are further disposed in the housing 1, the first electromagnetic assembly 4 is disposed in the first connecting seat 12, the second electromagnetic assembly 5 is disposed in the second connecting seat 13, the fixed contact 3 is disposed on the first connecting seat 12, and the movable contact 2 is disposed between the first connecting seat 12 and the second connecting seat 13. Thereby facilitating assembly of the entire relay.
The fixed contact 3 is provided with a positioning column 3.1, the first connecting seat 12 is provided with a positioning hole 12.1 matched with the positioning column 3.1, the positioning column 3.1 passes through the positioning hole 12.1 and is connected with a wiring board 14, the positioning column 3.1 extends into the positioning hole 12.1, so that the fixed contact 3 can be stably arranged on the first connecting seat 12, the positioning and the installation of the fixed contact 3 and the connection of the fixed contact 3 and the wiring board 14 are convenient, the second connecting seat 13 extends towards the direction of the first connecting seat 12 to form a plurality of bulges 13.1, the bulges 13.1 are distributed along the circumference of the end part of the second connecting seat 13, a guide groove 13.2 matched with the installation arm 2.2 is formed between the two adjacent bulges 13.1, when the movable contact 2 moves in a reciprocating way under the action of a magnetic field, the installation arm 2.2 is driven to move in the guide groove 13.2, the guide limit of the installation arm 2.2 is carried out through the guide groove 13.2, so that the movable contact 2 moves more stably, deviation is not easy to occur.
In addition, after the relay assembly was accomplished, can carry out evacuation and sealing process in to casing 1, in this embodiment, after the part assembly was accomplished in casing 1, can carry out the evacuation in to casing 1 to seal process through glue with the opening part of casing 1, make and be in vacuum environment in casing 1, can avoid movable contact and fixed contact can take place the oxidation when the contact, the life of extension relay can also reduce the electrical loss.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.
Claims (10)
1. High-voltage large-current magnetic force maintaining vacuum relay comprises a shell (1), and is characterized in that: a first electromagnetic component (4) and a second electromagnetic component (5) are arranged in the shell (1), a magnetic movable contact component is movably arranged between the first electromagnetic component (4) and the second electromagnetic component (5) and comprises a movable contact (2), magnetic fields in opposite directions are generated when currents pass through the first electromagnetic component (4) and the second electromagnetic component (5), the first electromagnetic component (4) is provided with a fixed contact (3), when the currents pass through the first electromagnetic component (4) and the second electromagnetic component (5), the movable contact component moves to the first electromagnetic component (4) and enables the movable contact (2) to be in contact with the fixed contact (3) or the movable contact component moves to the second electromagnetic component (5) and enables the movable contact (2) to be separated from the fixed contact (3), and when the directions of the currents passing through the first electromagnetic component (4) and the second electromagnetic component (5) are changed, the moving contact component moves to a second electromagnetic component (5) and enables the moving contact (2) to be separated from the fixed contact (3) or the moving contact component moves to a first electromagnetic component (4) and enables the moving contact (2) to be in contact with the fixed contact (3).
2. The high voltage high current magnetic latching vacuum relay of claim 1, wherein: the movable contact assembly further comprises a first mounting seat (6), a second mounting seat (7), a first magnet (8) and a second magnet (9), the first mounting seat (6) and the second mounting seat (7) are in plug-in fit, the movable contact (2) is located between the first mounting seat (6) and the second mounting seat (7), the first magnet (8) is mounted in the first mounting seat (6), and the second magnet (9) is mounted in the second mounting seat (7).
3. The high voltage high current magnetic latching vacuum relay of claim 2, wherein: a first insulating gasket (10) is arranged between the moving contact (2) and the first mounting seat (6), and a second insulating gasket (11) is arranged between the moving contact (2) and the second mounting seat (7).
4. A high-voltage high-current magnetic latching vacuum relay according to claim 2 or 3, wherein: the movable contact (2) comprises a base body (2.1) and contact points (2.3) arranged on the base body (2.1), the base body (2.1) is annular, a plurality of mounting arms (2.2) extend outwards from the periphery of the base body (2.1), and the contact points (2.3) are arranged on the mounting arms (2.2).
5. The high voltage high current magnetic latching vacuum relay of claim 4, wherein: still be equipped with first connecting seat (12) and second connecting seat (13) in casing (1), first electromagnetic component (4) set up in first connecting seat (12), second electromagnetic component (5) set up in second connecting seat (13), fixed contact (3) set up on first connecting seat (12), movable contact (2) activity sets up between first connecting seat (12) and second connecting seat (13).
6. The high voltage high current magnetic latching vacuum relay of claim 5, wherein: the fixed contact (3) is provided with a positioning column (3.1), the first connecting seat (12) is provided with a positioning hole (12.1) matched with the positioning column (3.1), and the positioning column (3.1) penetrates through the positioning hole (12.1) and is connected with a wiring board (14).
7. The high voltage high current magnetic latching vacuum relay of claim 5, wherein: the second connecting seat (13) extends along the circumference to the direction of the first connecting seat (12) and is provided with a plurality of bulges (13.1), and a guide groove (13.2) matched with the mounting arm (2.2) is formed between every two adjacent bulges (13.1).
8. The high voltage high current magnetic latching vacuum relay of claim 1, wherein: first electromagnetic component (4) include first solenoid (4.1), first solenoid (4.1) include first coil former and around locating the first coil on the first coil former, second electromagnetic component (5) include second solenoid (5.1), and second solenoid (5.1) include the second coil former and around locating the second coil on the second coil former.
9. The high voltage high current magnetic latching vacuum relay of claim 8, wherein: first electromagnetic component (4) still includes first magnet steel (4.2), first magnet steel (4.2) set up in first coil former, second electromagnetic component (5) still includes second magnet steel (5.2), second magnet steel (5.2) set up in the second coil former.
10. The high voltage high current magnetic latching vacuum relay of claim 8, wherein: first electromagnetic component (4) still include first yoke (4.3), outside first solenoid (4.1) was located to first yoke (4.3) cover, second electromagnetic component (5) still include second yoke (5.3), second solenoid (5.1) is located to second yoke (5.3) cover is outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910917237.9A CN110620022A (en) | 2019-09-26 | 2019-09-26 | High-voltage large-current magnetic force maintaining vacuum relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910917237.9A CN110620022A (en) | 2019-09-26 | 2019-09-26 | High-voltage large-current magnetic force maintaining vacuum relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110620022A true CN110620022A (en) | 2019-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910917237.9A Pending CN110620022A (en) | 2019-09-26 | 2019-09-26 | High-voltage large-current magnetic force maintaining vacuum relay |
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| Country | Link |
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| CN (1) | CN110620022A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140738A (en) * | 2019-12-31 | 2020-05-12 | 维沃移动通信有限公司 | Driving mechanism and electronic device |
| WO2022204996A1 (en) * | 2021-03-30 | 2022-10-06 | 华为数字能源技术有限公司 | Circuit breaker and power supply system |
-
2019
- 2019-09-26 CN CN201910917237.9A patent/CN110620022A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140738A (en) * | 2019-12-31 | 2020-05-12 | 维沃移动通信有限公司 | Driving mechanism and electronic device |
| WO2022204996A1 (en) * | 2021-03-30 | 2022-10-06 | 华为数字能源技术有限公司 | Circuit breaker and power supply system |
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