CN2574205Y

CN2574205Y - Inverted built-up structure AC contactor

Info

Publication number: CN2574205Y
Application number: CN 02257813
Authority: CN
Inventors: 薛寿权
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-15
Filing date: 2002-10-15
Publication date: 2003-09-17
Anticipated expiration: 2012-10-15

Abstract

The utility model relates to an inverted built-up structure AC contactor, which comprises a base (10), a support (9), an arc-extinguishing chamber (16), a coil (12), a yoke magnet (14), an armature (13), a slide saddle (7), a main contact (17), a contact support (15), a reaction spring (11), an auxiliary contact (4), a cover plate (1) and a button (2). Both sides of the cover plate (1) are provided with lock rod holes (6). The support (9) is fixed with a lock catch (8). A lock rod (3) is arranged inside the lock rod hole (6). The upper part of the lock rod (3) is sheathed with a spring (5). The upper part of the spring (5) abuts against a cap of the lock rod (3), and the lower part of the spring (5) abuts against the cover plate (1). Both sides of the lower part of the lock rod (3) are provided with a fin (3-1). The bottom of the lock catch (8) is provided with a locking hole (8-1). The lock rod (3) passes through the locking hole (8-1), and the upper end of the fin (3-1) abuts against the bottom of the lock catch (8). With convenient assembling and disassembling, the utility model brings convenience of wiring and maintenance for a user, and has the advantages of advanced structure, small size, light weight, long service life, low energy consumption, etc.

Description

Inversion type splicing structure A.C. contactor

Technical field

The utility model relates to a kind of A.C. contactor, particularly a kind of inversion type splicing structure A.C. contactor.

Background technology

Normally used contactor is monolithic construction; contact system is positioned at the top of contactor; and electromagnetic system is all in the bottom of contactor; in use usually because of speckling with dirt on the electromagnetic core pole-face; can make iron core produce noise; coil is easy to overheated being burnt; bring many difficulties for electrician's maintenance and repair; at first, remove all wiring on the contactor, and contactor slave unit field stripping is got off; open from the bottom and could take out coil and iron core; so not only time-consuming but also effort and has increased equipment downtime, very inconvenience.So people have designed inversion type splicing structure contactor, this contactor adopts button to connect usually, and separating still of cover plate and bearing quite required great effort, and cover plate and bearing can only be made by thermoplastics, its anti-electric arc, temperature capacity is poor, has influenced the useful life of contactor.

Summary of the invention

The purpose of this utility model provides a kind of assembling, convenient disassembly, the inversion type splicing structure A.C. contactor of long service life.

The technical scheme that realizes above-mentioned purpose is: a kind of inversion type splicing structure A.C. contactor, by base, bearing, the arc-extinguish chamber coil, yoke, armature, saddle, main contact, contact is supported, reaction spring, auxiliary contact, cover plate and button are formed, bearing is contained in base top, yoke is housed in the middle of the bearing, be with coil on the post therein, setting-in armature in the saddle, its center pillar is also corresponding in the middle of the coil, saddle two side lower part location notchs head on the contact support, button is inlaid on the armature, auxiliary contact is contained in bearing four sides, and the both sides of cover plate have latch arm hole, and position corresponding with latch arm hole on the bearing is installed with snap close, be provided with locking bar in the latch arm hole, the top of locking bar is set with snap, and the snap upper end is against the cap portion of locking bar, and the lower end is against on the cover plate, the both sides, bottom of locking bar have fin, have the lockhole corresponding with locking bar and fin thereof on the bottom surface of snap close, locking bar passes lockhole, and the upper end of its fin is against on the bottom surface of snap close.

After adopting technique scheme, being connected of cover plate and bearing passed through by locking bar, spring, the locking device that snap close is formed is realized, when the user safeguards product, only need to remove the wiring on the coil terminal, depress locking bar with screwdriver, be rotated counterclockwise, make the lockhole of locking bar from the snap close bottom surface, can unload lower cover, take out armature, yoke and coil make the maintenance and repair of product very convenient, when needing to install, cover plate can be aimed under the cover for seat, lockhole is depressed and passed to the locking bar in the latch arm hole of cover plate both sides with screwdriver, and turn clockwise, locking bar is pinned be fixed on the snap close on the bearing, assembling is promptly finished, thereby assembling and dismounting are all very convenient, after adopting said structure in addition, bearing and cover plate need not to use the rubber-like thermoplastics again, and can adopt the are-tight glass fibre compression molding material of BMC, its anti-electric arc, shock-resistant, thus useful life of contactor prolonged.

Description of drawings

Fig. 1 is a schematic top plan view of the present utility model;

Fig. 2 is the A-A cross-sectional schematic of Fig. 1;

Fig. 3 analyses and observe enlarged diagram for the B-B of Fig. 1;

Fig. 4 is the enlarged diagram of overlooking of locking bar of the present utility model and snap close junction;

Fig. 5 looks schematic diagram for the master of snap close of the present utility model;

Fig. 6 looks cutaway view for the right side of Fig. 5;

Fig. 7 is the vertical view of Fig. 5;

Fig. 8 is the structural representation of locking bar of the present utility model;

Fig. 9 is the left view of Fig. 8;

Figure 10 is the right view of Fig. 8.

Embodiment

Below in conjunction with drawings and Examples the utility model is described in further detail.

Shown in Fig. 1～10, a kind of inversion type splicing structure A.C. contactor, by base 10, bearing 9, arc-extinguish chamber 16, coil 12, yoke 14, armature 13, saddle 7, main contact 17, contact supports 15, reaction spring 11, auxiliary contact 4, cover plate 1 and button 2 are formed, bearing 9 is contained in base 10 tops, yoke 14 is housed in the middle of the bearing 9, be with coil 12 therein on the post, setting-in armature 13 in the saddle 7, its center pillar is also corresponding in the middle of the

coil

12,7 liang of side lower part location notchs of saddle head on contact and support 15, button 2 is inlaid on the armature 13, auxiliary contact 4 is contained in bearing 9 four sides, the both sides of cover plate 1 have latch arm hole 6, position corresponding with latch arm hole 6 on the bearing 9 is installed with snap close 8, be provided with locking bar 3 in the latch arm hole 6, the top of locking bar 3 is set with snap 5, snap 5 upper ends are against the cap portion of locking bar 3, the lower end is against on the cover plate 1, the both sides, bottom of locking bar 3 have fin 3-1, have the lockhole 8-1 corresponding on the bottom surface of snap close 8 with locking bar 3 and fin 3-1 thereof, locking bar 3 passes lockhole 8-1, and the upper end of its fin 3-1 is against on the bottom surface of snap close 8.

Being inlaid in button 2 on the armature 13 can be used as contactor and is switched on or switched off position indicating device or increases the auxiliary contact group according to user's needs setting-in.The auxiliary contact 4 of bearing 9 four sides as long as change mounting means, can make often to open to convert to normally closedly, or normally closed often converting to open, the user as required, conversion contact form is very convenient.

Shown in Fig. 6,7, have the fin groove 8-2 corresponding on the bottom surface of snap close 8, and fin groove 8-2 is positioned at the both sides of lockhole 8-1 with the fin 3-1 of locking bar 3.Fin groove 8-2 is used for to locking bar 3 location, prevents that locking bar 3 from rotating, and also is convenient to when mounted simultaneously, makes locking bar find the position location accurately.

Bearing 9 of the present utility model, base 10, contact support 15, cover plate 1 all adopt the are-tight glass fibre compression molding material of BMC, the anti-electric arc of this material, shock-resistant, saddle 7 adopts fire-retardant nylon, it is wear-resistant, main contact adopts alloy material, its anti-electric arc, anti-melting welding, and yoke 14, armature 13 adopt wear-resistant, the silicon steel sheet that magnetic flux is stable, be lined with heat-resisting buffering silicone rubber plate in the yoke bottom,, avoided the spring arcing of contact when armature 13 closed moments can reduce vibrations.After contactor adopted above-mentioned material, its electrical endurance, mechanical endurance greatly improved.

Because the utility model is an inversion type assembly unit mechanism, contact is positioned at the contactor bottom, terminal block is convenient, it is attractive in appearance neat to connect up, and the saving wire rod, the utility model compares with the contactor of routine, and it has volume-diminished 1/3, weight saving 1/2, energy-saving material-saving and reduced the manufacturing cost of product.

Claims

1, a kind of inversion type splicing structure A.C. contactor, by base (10), bearing (9), arc-extinguish chamber (16), coil (12), yoke (14), armature (13), saddle (7), main contact (17), contact is supported (15), reaction spring (11), auxiliary contact (4), cover plate (1) and button (2) are formed, bearing (9) is contained in base (10) top, yoke (14) is housed in the middle of the bearing (9), be with coil (12) therein on the post, setting-in armature (13) in the saddle (7), its center pillar is also corresponding in the middle of the coil (12), saddle (7) two side lower part location notchs head on contact support (15), button (2) is inlaid on the armature (13), auxiliary contact (4) is contained in bearing (9) four sides, it is characterized in that: the both sides of cover plate (1) have latch arm hole (6), bearing (9) is gone up the position corresponding with latch arm hole (6) and is installed with snap close (8), be provided with locking bar (3) in the latch arm hole (6), the top of locking bar (3) is set with snap (5), snap (5) upper end is against the cap portion of locking bar (3), the lower end is against on the cover plate (1), the both sides, bottom of locking bar (3) have fin (3-1), have the lockhole (8-1) corresponding on the bottom surface of snap close (8) with locking bar (3) and fin (3-1) thereof, locking bar (3) passes lockhole (8-1), and the upper end of its fin (3-1) is against on the bottom surface of snap close (8).

2, inversion type splicing structure A.C. contactor according to claim 1 is characterized in that: have the fin groove (8-2) corresponding with the fin (3-1) of locking bar (3) on the bottom surface of snap close (8), and fin groove (8-2) is positioned at the both sides of lockhole (8-1).