CN201820710U

CN201820710U - Novel contactor

Info

Publication number: CN201820710U
Application number: CN2010205732588U
Authority: CN
Inventors: 何东
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-10-22
Filing date: 2010-10-22
Publication date: 2011-05-04
Anticipated expiration: 2020-10-22

Abstract

The utility model discloses a novel contactor capable of realizing the self-locking and the unlocking functions under the attracting state of the contactor. The novel contactor comprises a housing with an internal cavity, wherein a first electromagnet is fixed at the bottom of the cavity of the housing, a first iron core is positioned at the top of the cavity of the housing, a plurality of first return springs which are in the compressive state are arranged between the first iron core and the bottom of the housing, a vertical clamping and blocking piece is fixed at the top end of the first iron core, a bore is formed at the top of the housing, the clamping and blocking piece upwardly extends out of the bore, the external outline of the clamping and blocking piece presents a ladder shape, the large end of the clamping and blocking piece faces downwards, a fixing seat is mounted at the top end of the outer side of the housing, the interior of the fixing seat adopts a cavity, a through hole is formed on the left side of the fixing seat, a transverse telescopic rod is sleeved in the through hole, a plug pin is fixed at the left end of the telescopic rod, a second iron core is fixed at the right end of the telescopic rod, a second electromagnet is arranged in the fixing seat in the position corresponding to the second iron core, second return springs which are in the compressive state are arranged between the plug pin and the fixing seat, and the plug pin is just blocked into the small end of the clamping and blocking piece when the first iron core and the first electromagnet are attracted.

Description

New type contactor

Technical field

The utility model relates to a kind of new type contactor, specifically, relates to a kind of contactor that utilizes mechanical system to realize contactor attracting state self-locking and release.

Background technology

Existing alternating current contactor all guarantees contactor adhesive operation with electromagnetic force, in running, the necessary consumed power of the solenoid of contactor, in order to save electric energy, employing ac contactor silent power-saving running scheme has appearred at present, but this technology is appointed and is so utilized electromagnetic force to guarantee the A.C. contactor operation, can not reach the purpose of real economize on electricity.

The utility model content

At above deficiency, it is a kind of simple in structure that the utility model provides, new type contactor easy to use, it comprises housing, be provided with first iron core and first electromagnet of the action that cooperatively interacts in the described housing, be provided with resetting means between described first iron core and first electromagnet, first iron core can pump in housing, described contactor also comprises self-locking device, when described self-locking device is in off-position at first electromagnet, keep first iron core and first electromagnet to be in attracting state.

Described self-locking device comprises the vertical block spare that is fixed in first iron core upper end, described block spare extends upward described housing, the exterior contour of block spare is stepped, its big end down, described hull outside top is fixed with the elasticity lock piece, when first iron core and first electromagnet were in attracting state, described lock piece snapped in the small end of block spare.

Described lock piece comprises the holder that is fixed on the hull outside top, described holder left side is provided with through hole, be arranged with the transversal stretching bar in the described through hole, described expansion link left end is fixed with latch, be provided with second back-moving spring between described latch and the holder, described second back-moving spring is in compressive state always, and when first iron core and first electromagnet are in attracting state, latch snaps in the small end of block spare.

Described contactor also comprises tripper, described tripper comprises second iron core that is fixed on described expansion link right-hand member, position corresponding to second iron core in the described holder is provided with second electromagnet, and when second electromagnet was switched on, described latch came off from the small end of block spare.

Described enclosure interior left end is provided with gathering sill, and described second iron core can horizontally slip in described gathering sill.

Described resetting means comprises several first back-moving springs that are connected between first iron core and the housing bottom, and each described first back-moving spring all is in compressive state.

Described housing bottom is provided with several stopper slots, and first back-moving spring lays respectively in the corresponding stopper slot.

The beneficial effects of the utility model: the utility model is by block spare and elasticity lock piece mechanical engagement, guaranteed that contactor is under cold situation, appoint and so can keep in touch device and be in attracting state, thereby introduced the conduction time of pull-in winding, really reach purpose of energy saving; In addition, the utility model utilizes electromagnet as unlock switch, and is not only simple and convenient, also can avoid long-time energising simultaneously, reaches purpose of energy saving equally.

Description of drawings

Fig. 1 is a new type contactor structural representation of the present utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model is further set forth, wherein, direction of the present utility model is standard with Fig. 1.

As shown in Figure 1, new type contactor of the present utility model comprises plastic casing 1, described housing 1 inside forms square cavity, and (other shape is also passable, as long as guaranteeing iron core or electromagnet can inside slide, two keep adhesives and break away from two states both can), first iron core 21 and first electromagnet 22 be installed in the cavity (both one of be fixed installation, another one is movable the installation, the utility model is the example explanation with the fixed installation of first electromagnet only), wherein, first electromagnet 22 is fixed on the bottom of housing 1 cavity, first iron core 21 is installed in the cavity top by resetting means 3, resetting means 3 comprises that several are connected first back-moving spring 31 between first iron core 21 and housing 1 bottom, concrete mode is, the side of first iron core 21 is provided with several pressing plates, each described first back-moving spring 31 is installed between pressing plate and housing 1 bottom, and each described first back-moving spring 31 all is in compressive state always, (each described first back-moving spring 31 also can be installed between pressing plate and housing 1 top certainly could really to play the result who resets like this, just this moment, each described first back-moving spring 31 all will be in extended state always), consider that first back-moving spring 31 is for distorting because compress, the utility model can also be installed stopper slot 6 in the position of each described first back-moving spring 31, just the height of stopper slot 6 can not be too high, otherwise can influence the normal adhesive of first iron core 21 and first electromagnet 22.Such scheme is the basic structure of contactor, the utility model has also increased self-locking device 4 and tripper 5 in conjunction with such scheme, can realize that by self-locking device 4 first electromagnet 22 is under the situation of outage, appoint and to guarantee that so first iron core 21 and first electromagnet 22 are in attracting state, to reach self-locking state, and tripper 5 can be when passing to immediate current, can automatic unlocking, and make contactor be in reset mode.

Self-locking device 4 comprises the vertical block spare 41 that is fixed on first iron core, 21 tops, housing 1 top has perforation, block spare 41 extends upward perforation, the exterior contour of block spare 41 is stepped, its big end down, top, housing 1 outside is provided with elasticity lock piece 42, when first iron core 21 and first electromagnet 22 are in attracting state, the small end that lock piece 42 just snaps in block spare 41 (also can be provided with a hole clipping at the small end of block spare 41, when first iron core 21 and first electromagnet 22 were in attracting state, lock piece 42 just snapped in hole clipping).Like this, when 22 energisings of first electromagnet, first electromagnet 22 attracts first iron core, 21 compressings, first back-moving spring 31 to move downward, when first iron core 21 is in attracting state with first electromagnet 22 (contact), elasticity lock piece 42 just snaps onto the small end of block spare 41, when 22 outages of first electromagnet, because the resistance of lock piece 42, first iron core 21 can not break away from first electromagnet 22, be that contactor can not reset, and need the words of release this moment, only need to give elasticity lock piece 42 power to the right, make lock piece 42 break away from the small end of block spare 41, first iron core 21 is owing to the active force of first back-moving spring 31 can move upward, thereby make the iron core 21 of winning break away from first electromagnet 22, to reach contactor and reset the purpose of (release).Wherein lock piece 42 comprises the holder 421 that is fixed on top, housing 1 outside, holder 421 inside are cavity, described holder left side is provided with through hole, be arranged with transversal stretching bar 422 in this through hole, described expansion link 422 left ends are fixed with latch 423, are provided with second back-moving spring, 424, the second back-moving springs 424 between described latch 423 and the holder 421 and are in compressive state always, when first iron core 21 and first electromagnet 22 are in attracting state, latch 423 just snaps in the small end of block spare 41.

The utility model can also increase an auto-unlocking device 5 on the basis of such scheme, described tripper 5 comprises second iron core 51 that is fixed on described expansion link 422 right-hand members, position corresponding to second iron core 51 in the holder 421 is provided with second electromagnet 52, when 52 energisings (instantaneous) of second electromagnet, second electromagnet 52 attracts second iron core 51 to move right, second iron core 51 drives expansion link 422 drive latches 423 and moves right, latch 423 breaks away from from the small end of block spare 41, to realize the purpose of release, described housing 1 inner left end can also be provided with gathering sill 53, and described second iron core 51 can horizontally slip in described gathering sill 53.

Claims

1. new type contactor, it comprises housing (1), be provided with first iron core (21) and first electromagnet (22) of the action that cooperatively interacts in the described housing (1), be provided with resetting means (3) between described first iron core (21) and first electromagnet (22), first iron core (21) can pump in housing (1), it is characterized in that, described contactor also comprises self-locking device (4), described self-locking device (4) when being in off-position, keeps first iron core (21) and first electromagnet (22) to be in attracting state at first electromagnet (22).

2. new type contactor according to claim 1, it is characterized in that, described self-locking device (4) comprises the vertical block spare (41) that is fixed in first iron core (21) upper end, described block spare (41) extends upward described housing (1), the exterior contour of block spare (41) is stepped, its big end down, top, described housing (1) outside is fixed with elasticity lock piece (42), when first iron core (21) and first electromagnet (22) when being in attracting state, described lock piece (42) snaps in the small end of block spare (41).

3. new type contactor according to claim 2, it is characterized in that, described lock piece (42) comprises the holder (421) that is fixed on top, housing (1) outside, described holder left side is provided with through hole, be arranged with transversal stretching bar (422) in the described through hole, described expansion link (422) left end is fixed with latch (423), be provided with second back-moving spring (424) between described latch (423) and the holder (421), described second back-moving spring (424) is in compressive state always, when first iron core (21) and first electromagnet (22) are in attracting state, latch (423) snaps in the small end of block spare (41).

4. new type contactor according to claim 3, it is characterized in that, described contactor also comprises tripper (5), described tripper (5) comprises second iron core (51) that is fixed on described expansion link (422) right-hand member, position corresponding to second iron core (51) in the described holder (421) is provided with second electromagnet (52), when second electromagnet (52) was switched on, described latch (423) came off from the small end of block spare (41).

5. new type contactor according to claim 4 is characterized in that, the inner left end of described housing (1) is provided with gathering sill (53), and described second iron core (51) can horizontally slip in described gathering sill (53).

6. according to claim 1,2,3,4 or 5 described new type contactors, it is characterized in that, described resetting means (3) comprises several first back-moving springs (31) that are connected between first iron core (21) and housing (1) bottom, and each described first back-moving spring (31) all is in compressive state.

7. new type contactor according to claim 6 is characterized in that, described housing (1) bottom is provided with several stopper slots (6), and first back-moving spring (31) lays respectively in the corresponding stopper slot (6).