CN201576635U

CN201576635U - Energy-saving impact-resisting vibration-attenuating DC contactor

Info

Publication number: CN201576635U
Application number: CN200920269846XU
Authority: CN
Inventors: 祝文荣
Original assignee: Guizhou Space Appliance Co Ltd
Current assignee: Guizhou Space Appliance Co Ltd
Priority date: 2009-10-29
Filing date: 2009-10-29
Publication date: 2010-09-08
Anticipated expiration: 2019-10-29

Abstract

The utility model relates to an energy-saving impact-resisting vibration-attenuating DC contactor, comprising two coils, movable iron cores, upper iron yokes, middle iron yokes, lower iron yokes, upper magnetic steel, lower magnetic steel, an upper base, a lower base, a left electrode, a right electrode, an electric conduction block, a contact on a connecting rod, an upper shell and a lower shell, wherein two axial ends of the two coils are provided with the upper iron yokes and the lower iron yokes, and the middle iron yokes are arranged between the two coils. The outer sides of the two coils are respectively provided with the upper magnetic steel and lower magnetic steel, and the movable iron cores are glidingly matched with the middle iron yokes at the inner sides of the coils. The coils do not electricity to keep, so an energy saving device can reduce energy consumption. The movable iron cores have suction of the magnetic steel in an open state and a close state. With high vibration-attenuating performance, the DC contactor eliminates the burning phenomenon of the coils due to heating.

Description

The D.C. contactor that a kind of energy-conservation anti-impact is shaken

Technical field

The utility model belongs to the contactor technical field, relates in particular to a kind of energy-conservation, D.C. contactor that anti-impact is shaken.

Background technology

Along with the develop rapidly of aeronautical and space technology, increasing application scenario proposes higher anti-vibration, shock resistance, requirements of saving energy to Electronic Control Unit.Traditional electromagnetic treadle, because contactor is in the process of closed main circuit, its control circuit is in conducting state all the time, and coil is in "on" position, there is the shortcoming of waste electric energy in contactor, even the phenomenon that coil burns because of heating often takes place contactor.

Summary of the invention

The objective of the invention is to propose a kind of energy-conservation, D.C. contactor that anti-impact is shaken, coil did not need holding current to one second after the DC pulse at tens of milliseconds, its state still remains unchanged under the effect of magnet steel, no matter the contact is in closure or off-state, moving iron core all is subjected to the suction of magnet steel, closing of contact process stabilization, magnetic structure anti-vibration and impact capacity are strong, are subjected to the interference in external magnetic field little.

The D.C. contactor that described energy-conservation anti-impact is shaken comprises component parts such as two coils, moving iron core, and wherein two coils are circular or just polygonal, are provided with upper yoke and lower yoke at the axial two ends of coil, iron yoke in being provided with between two coils; Be respectively arranged with in the outside of coil circular, fan-shaped circumference evenly distributes or the lower magnetic steel and the upper magnetic steel of regular polygon, upper yoke and middle iron yoke couple together by upper magnetic steel in the outside of coil, and lower yoke and middle iron yoke couple together by lower magnetic steel in the outside of coil; Coil (the inboard, be set to be slidingly matched between moving iron core and the middle iron yoke, like this, moving iron core can easy on and off activity between upper yoke and lower yoke, moving unshakable in one's determination the connection with connecting rod by the conducting block on connecting rod drive top and contact and left and right sides electrode admittance and the disrupted configuration that establish at the conducting block two ends;

Described coil, moving iron core, upper yoke, middle iron yoke and lower yoke are fixed in the shell, and shell is fixed on the pedestal again.

The beneficial effects of the utility model:

1 coil does not need to power up to keep, and the contactor power consumption reduces, and has energy-conservation effect.

2 moving unshakable in one's determination all have the suction of magnet steel in closure or off-state, have the high anti-impact performance of shaking.

3 have eliminated the phenomenon that coil burns because of heating.

Description of drawings

Fig. 1 the utility model contactor is in the structural representation of off-state.

Fig. 2 the utility model contactor is in the structural representation of closure state.

Among the figure: iron yoke, 5-upper magnetic steel, 6-upper yoke, 7-pedestal, 8-top base, 9-left side electrode, 10-contact, the right electrode of 11-, 12-connecting rod, the last shell of 13-, 14-conducting block, the last coil of 15-, 16-mounting ear, moving unshakable in one's determination, the 18-lower yoke of 17-among 1-coil, 2-lower magnetic steel, 3-shell, the 4-.

Embodiment

Below in conjunction with accompanying drawing the utility model is further described.

As shown in Figure 1, 2, be in disconnection, closure state example structure schematic diagram for the utility model contactor.The D.C. contactor that described energy-conservation anti-impact is shaken, comprise two coils, parts such as coil 1 and last coil 15, moving iron core 17 are formed, wherein coil 1 and last coil 15 are circular or just polygonal, be provided with upper yoke 6 and lower yoke 18 at the axial two ends of coil, iron yoke 4 in being provided with between coil 1 and the last coil 15; Be respectively arranged with in the outside of coil 1 and last coil 15 circular, fan-shaped circumference evenly distributes or the lower magnetic steel 2 and the upper magnetic steel 5 of regular polygon, upper yoke 6 and middle iron yoke 4 couple together by upper magnetic steel 5 in the outside of coil 15, and lower yoke 18 and middle iron yoke 4 couple together by lower magnetic steel 2 in the outside of coil 1; In the inboard of coil 1 and last coil 15, moving unshakable in one's determination 17 and middle iron yoke 4 between be set to be slidingly matched, like this, moving unshakable in one's determination 17 can easy on and off activity between upper yoke 6 and lower yoke 18; Described coil 1 and last coil 15, moving iron core 17, upper yoke 6, middle iron yoke 4 and lower yoke 18 are fixed in the shell 3, and shell 3 is fixed in again on the pedestal 7.

The contact system of the D.C. contactor that described energy-conservation anti-impact is shaken adopts the structure of double break point, left side electrode 9, right electrode 11 symmetries are placed on the top base 8, the input of one end, other end output, contact 10 is welded on the electric conductivity favorable conductive piece 14, conducting block 14 is fixed on the connecting rod 12, when contact 10 and left electrode 9, right electrode 11 are closed, and left electrode 9 and 11 conductings of right electrode.

As shown in Figure 1, moving iron core 17 is in closure state with iron yoke 6, the magnetic flux that upper magnetic steel 5 produces forms closed magnetic circuit by N best → middle iron yoke 4 → moving 17 → upper yoke, 6 → S utmost point unshakable in one's determination, owing to have air-gap between moving iron core 17 and the lower yoke 18, but lower magnetic steel 2 does not have the conducting magnetic circuit to exist, and moving 17 magnetic fluxs that produced by upper magnetic steel 5 unshakable in one's determination tightly are adsorbed on the upper yoke 6, and do not have air-gap in the magnetic circuit this moment, therefore magnetic flux is big, and the suction of generation is big.

Promote blood circulation towards direct current (tens of milliseconds were to one second) when giving coil 1 and last coil 15, coil 1 and last coil 15 produce magnetic flux, its direction is determined by sense of current, if last coil 15 magnetic directions are: the S utmost point → upper yoke 6 of the N best → upper magnetic steel 5 of moving 17 → middle iron yoke 4 → upper magnetic steel 5 unshakable in one's determination → moving unshakable in one's determination 17, between upper yoke 6 and moving unshakable in one's determination 17, the magnetic direction that magnetic field that last coil 15 produces and upper magnetic steel 5 produce is opposite, will be fully or major part disappear, suction between upper yoke 6 and moving unshakable in one's determination 17 disappeared or weaken; Simultaneously, the magnetic direction that coil 1 produces is: the moving unshakable in one's determination 17 N utmost point → middle iron yoke 4 → moving unshakable in one's determination 17 to the S utmost point → lower magnetic steel 2 of → air-gap → lower magnetic steel 2, it is identical with the magnetic direction that lower magnetic steel 2 produces that coil 1 produces magnetic direction, and its magnetic circuit is through air-gap, produce downward suction to moving unshakable in one's determination 17, moving unshakable in one's determination 17 move downward, and drivening rod 12 makes contact 10 and left electrode 9, right electrode 11 closures, finish the conversion of D.C. contactor.

As shown in Figure 2, magnetic flux N best → middle iron yoke 4 that lower magnetic steel 2 produces → moving 17 → lower yoke, 18 → S utmost point unshakable in one's determination forms closed magnetic circuit, moving 17 magnetic fluxs that produced by lower magnetic steel 2 unshakable in one's determination tightly are adsorbed on the lower yoke 18, simultaneously, do not have air-gap in this magnetic circuit, so magnetic flux is big, the suction of generation is big, contactor is in stable status, and coil need not switched on.To be the state of Fig. 1 by the state exchange of Fig. 2 with contactor, only need to change above-mentioned coil 1 and last coil 15 senses of current, the magnetic direction that coil 1 produces is: the moving unshakable in one's determination 17 S utmost point → lower yoke 18 → moving unshakable in one's determination 17 to the N utmost point → lower magnetic steel 2 of → middle iron yoke 4 → lower magnetic steel 2, coil 1 moving unshakable in one's determination 17 with lower yoke 18 between formed the magnetic flux opposite with lower magnetic steel 2, the two is fully or most of counteracting; Going up simultaneously coil 15 magnetic directions is: the moving unshakable in one's determination 17 N utmost point → middle iron yoke 4 → moving unshakable in one's determination 17 to the S utmost point → upper magnetic steel 5 of → upper yoke 6 → upper magnetic steel 5, last coil 15 moving unshakable in one's determination 17 and iron yoke 18 between formed the magnetic flux identical with upper magnetic steel 5, moving unshakable in one's determination 17 will move upward, and with upper yoke 6 closures.No matter be Fig. 1 or the state of Fig. 2, the magnetic circuit of magnet steel all is independent closed, and the material of magnetic flux process all is good permeability magnetic material, magnetic resistance is little, and the leakage flux of dispersing is less, is not subject to the interference in external magnetic field, the magnetic property decay is slower, and magnetic structure has advantages of higher stability and reliability.

Claims

1. D.C. contactor that energy-conservation anti-impact is shaken, it is characterized in that: it comprises two coils, and coil (1) and last coil (15), moving (17) unshakable in one's determination, upper yoke (6) and lower yoke (18), middle iron yoke (4), lower magnetic steel (2) and upper magnetic steel (5), shell (3), pedestal (7), top base (8), left electrode (9), right electrode (11), contact (10), connecting rod (12), conducting block (14), last shell (13) are formed; Axially be provided with upper yoke (6) and lower yoke (18) in two ends at coil (1) and last coil (15), iron yoke (4) in being provided with between coil (1) and the last coil (15), be respectively arranged with lower magnetic steel (2) and upper magnetic steel (5) in the outside of coil (1) and last coil (15), upper yoke (6) is connected by upper magnetic steel (5) in last coil (15) outside with middle iron yoke (4), lower yoke (18) is connected by upper magnetic steel (5) in last coil (15) outside with middle iron yoke (4), and lower yoke (18) is connected by lower magnetic steel (2) with the outside of middle iron yoke (4) at coil (1); In the inboard of coil (1) and last coil (15), be made as between moving (17) unshakable in one's determination and the middle iron yoke (4) and be slidingly matched moving (17) easy on and off activity between upper yoke (6) and lower yoke (18) unshakable in one's determination; Moving unshakable in one's determination (17) are connected with connecting rod (12), the conducting block (14) on connecting rod (12) drive top and the contact (10) that establish at the conducting block two ends respectively with the structure of left and right sides electrode (9,11) admittance and disconnection; Coil (1), last coil (15), moving (17), upper yoke (6) unshakable in one's determination, middle iron yoke (4) and lower yoke (18) are fixed in the shell (3), and shell (3) is fixed on the pedestal (7).

2. the D.C. contactor that energy-conservation anti-impact according to claim 1 is shaken, it is characterized in that: contact system adopts double-breakpoint structure, left side electrode (9), right electrode (11) are symmetricly set on the top base (8), the output of the one end input other end, contact (10) is welded on the conducting block (14), and conducting block (14) is fixed on the connecting rod (12).

3. the D.C. contactor that energy-conservation anti-impact according to claim 1 is shaken is characterized in that: coil (1) and last coil (15) are made as circle.

4. the D.C. contactor that energy-conservation anti-impact according to claim 1 is shaken is characterized in that: coil (1) and last coil (15) are made as regular polygon.

5. the D.C. contactor that energy-conservation anti-impact according to claim 1 is shaken is characterized in that: be respectively equipped with circular equally distributed lower magnetic steel of fan-shaped circumference (2) and upper magnetic steel (5) in the outside of coil (1) and last coil (15).

6. the D.C. contactor that energy-conservation anti-impact according to claim 1 is shaken is characterized in that: the lower magnetic steel (2) and the upper magnetic steel (5) that are respectively equipped with regular polygon in the outside of coil (1) and last coil (15).