CN202940194U

CN202940194U - High-voltage direct-current electromagnetic relay

Info

Publication number: CN202940194U
Application number: CN 201220660113
Authority: CN
Inventors: 谢林炜; 杨光伦; 蒙征; 肖斌; 唐贵英; 石磊
Original assignee: GUIZHOU ZHENHUA QUNYING ELECTRICAL APPLIANCES CO Ltd
Current assignee: GUIZHOU ZHENHUA QUNYING ELECTRICAL APPLIANCES CO Ltd
Priority date: 2012-12-05
Filing date: 2012-12-05
Publication date: 2013-05-15
Anticipated expiration: 2022-12-05

Abstract

Disclosed is a high-voltage direct-current electromagnetic relay which is composed of a contact system, a magnetic circuit system and a housing part, wherein the contact system (1) and the magnetic circuit system (2) are arranged in the housing part (3). Static contacts (7) of the contact system (1) are riveted on contact pieces A (5) and contact pieces B (6), and the contact pieces A (5) and the contact pieces B (6) are spot-welded on a base (4); in the magnetic circuit system, a shaft frame (9) is spot-welded on an electromagnet part (12) to fix an armature part (10), a reset reed (11) is spot-welded on a bracket (8), and the bracket (8) is spot-welded on the electromagnet part (12); a rotating shaft (16) of the armature part (10) is spot-welded on an armature (13), the armature (13) and an insulating seat (14) are riveted together, and movable contacts (19) and movable reeds (18) are riveted together and then are fixed on the insulating seat (14) together with pressing plates (15) through rivets (17); a magnetic steel (22) and pole shoes B (23) of the electromagnet part (12) are spot-welded together and then are riveted together with iron cores (24), a coil (21) and a pole shoe A (20); and the contact system (1) and the magnetic circuit system (2) are connected together by spot welding, and the housing portion (3) is packaged through fusion welding.

Description

The high voltage direct current electromagnetic relay

Technical field

The utility model relates to the relay class of electromechanical compo, particularly high voltage direct current electromagnetic relay.

Background technology

The operation principle of electromagnetic relay is: after coil electricity, iron core is magnetized and produces enough large electromagnetic force, inhale moving armature and drive in the middle of reed, make that reed and normally-closed contact separate, and normally opened contact closure; After coil blackout, electromagnetic attraction disappears, and armature returns to original position, and middle reed returns to initial state.

Common electromagnetic relay can not be taken into account on environmental index and load capacity simultaneously, and reliability is low.

Summary of the invention

A kind of have two groups of transfer contacts, switching dc voltage 60V, load current is large, environmental index is high, reliability is high hermetically sealed electromagnetic relay provided by the utility model.

Formation of the present utility model: a kind of high voltage direct current electromagnetic relay, partly formed by contact system, magnetic circuit system and case, it is characterized in that: in the case part, contact system and magnetic circuit system are housed, contact system mainly is made of base, contact chip A, contact chip B, fixed contact; Magnetic circuit system mainly is made of support, pedestal, armature part, reset reed, electromagnet part and magnet steel; The fixed contact riveting of contact system is contained on contact chip A and contact chip B, and contact chip A, contact chip B point are welded on base; In magnetic circuit system, pedestal is spoted weld electromagnet and partly go up the fixed armature part, reset reed spots weld on support, then support is spoted weld on the electromagnet part; The pivot point of armature part is welded on armature, and armature and insulating base are riveted together, and moving contact and movable contact spring are riveted together rear and pressing plate is fixed on insulating base by rivet; The magnet steel of electromagnet part and pole shoe B is spot-welded together is fitted together with iron core, coil, pole shoe A riveting again; Contact system connects together by spot welding with magnetic circuit system, and the case part encapsulates by melting welding.

Compared with the prior art, characteristics of the present utility model are that magnetic circuit uses monostable polarized magnetic system structure, novel structure; The two air gap contact portions of bridge-type improve the ability of cut-offfing the high-energy direct-current arc greatly; Middle reed uses the high-performance elastic alloy, has high conductance and temperature tolerance; The silver-base alloy contact that cut-offs the direct-current arc excellent performance is used in the contact; The rotary armature of rotating mechanism balance has good anti-vibration, shock resistance; Shell uses metal cap shell melting weldering sealing, the inner protective gas of filling, and steam vent uses the steel ball spot welding seal, has guaranteed the reliability of working under the low pressure.

The beneficial effects of the utility model:

Have two groups of transfer contacts, switching dc voltage is high, and the load volume ratio is large, anti-vibrating and impact, serviceability temperature wide ranges; Adjustment by contact portion can be changed to four groups of contact structures such as transfer contact, and magnetic circuit part conversion coil just becomes magnetic latching relay, and versatility is wide; Be specially adapted to switch in Aeronautics and Astronautics electronic instrument, equipment the circuit of large electric current.

Description of drawings

Fig. 1 is the utility model relay general assembly drawing, and Fig. 2 is the contact system schematic diagram, and Fig. 3 is the magnetic circuit system schematic diagram, and Fig. 4 is armature part schematic diagram, and Fig. 5 is electromagnet part schematic diagram.

Fig. 1 comprises main parts size to be had: 1 contact system, 2 magnetic circuit systems, 3 case parts.

Fig. 2 comprises main parts size to be had: 4 bases, 5 contact chip A, 6 contact chip B, 7 fixed contacts.

Fig. 3 comprises main parts size to be had: 8 supports, 9 pedestals, 10 armature parts, 11 reset reeds, 12 electromagnet parts.

Fig. 4 comprises main parts size to be had: 13 armature, 14 insulating bases, 15 pressing plates, 16 rotating shafts, 17 rivets, 18 movable contact springs, 19 moving contacts.

Fig. 5 comprises main parts size to be had: 20 pole shoe A, 21 coils, 22 magnet steel, 23 pole shoe B, 24 iron cores.

Embodiment

As shown in Fig. 1-5, contact system 1 and magnetic circuit system 2 are housed in case part 3.Contact system 1 mainly is made of base 4, contact chip A5, contact chip B6, fixed contact 7; Magnetic circuit system 2 mainly is made of support 8, pedestal 9, armature part 10, reset reed 11, electromagnet part 12 and magnet steel 22; Fixed contact 7 rivetings of contact system 1 are contained on contact chip A5 and contact chip B6, and contact chip A5, contact chip B6 point are welded on base 4; In magnetic circuit system 2, pedestal 9 is spoted weld fixed armature part 10 on electromagnet part 12, reset reed 11 spots weld on support 8, then support 8 is spoted weld on electromagnet part 12; 16 of the rotating shafts of armature part 10 are welded on armature 13, and armature 13 is riveted together with insulating base 14, and moving contact 19 is riveted together rear with movable contact spring 18 and pressing plate 15 is fixed on insulating base 14 by rivet 17; The magnet steel 22 of electromagnet part 12 is fitted together with iron core 24, coil 21, pole shoe A20 riveting with pole shoe B23 is spot-welded together again; Contact system 1 connects together by spot welding with magnetic circuit system 2, and case part 3 encapsulates by melting welding.

Operation principle: the magnetic flux that magnet steel 22 produces passes through pole shoe A20, pole shoe B23, and armature 13 forms closed magnetic circuits, makes armature part 10 in the situation that coil 21 does not power up and is in release condition; After the magnetic flux that produces when coil 21 encourages with rated voltage is offset through the magnetic flux that produces with magnet steel unshakable in one's determination, by the pole shoe A20 of opposite side, pole shoe B23, armature 13 forms closed magnetic circuit, makes armature turn to attracting state; The variation of movable contact spring by the armature position state that is fixed on armature realizes normally-closed contact, the switching of normally opened contact.

Claims

1. high voltage direct current electromagnetic relay, partly formed by contact system, magnetic circuit system and case, it is characterized in that: in case part (3), contact system (1) and magnetic circuit system (2) are housed, contact system (1) is mainly by base (4), contact chip A(5), contact chip B(6), fixed contact (7) formation; Magnetic circuit system (2) mainly is made of support (8), pedestal (9), armature part (10), reset reed (11), electromagnet part (12) and magnet steel (22); Fixed contact (7) riveting of contact system (1) is contained in contact chip A(5) and contact chip B(6) on, contact chip A(5), contact chip B(6) point be welded on base (4); In magnetic circuit system (2), pedestal (9) is spoted weld the upper fixed armature part of electromagnet part (12) (10), reset reed (11) spots weld on support (8), then support (8) is spoted weld on electromagnet part (12); Rotating shaft (16) point of armature part (10) is welded on armature (13), armature (13) is riveted together with insulating base (14), and moving contact (19) is riveted together rear with movable contact spring (18) and pressing plate (15) is fixed on insulating base (14) by rivet (17); The magnet steel (22) of electromagnet part (12) and pole shoe B(23) spot-welded together again with (24), coil (21) unshakable in one's determination, pole shoe A(20) riveting is fitted together; Contact system (1) connects together by spot welding with magnetic circuit system (2), and case part (3) encapsulates by melting welding.