CN1041032C - Unit for connecting of model low voltage breaker - Google Patents

Abstract

All kinds of connection can be designed on a circuit board. A Terminal joint comprises a frame terminal 29 whose bottom has a flange embedded into a hole arranged on the circuit board 21 for fixing the terminal 29. When the terminal is arranged in the hole arranged on the side surface of a moulding box 10, an insulating rack 33 fixed on the back surface of the bottom of the terminal 29 keeps the fixed position. The hole has a guidance chute of the insulating rack 33 so as to install a connecting device. The hole can accommodate insulating racks of other connecting modes, and particularly nut fixing brackets of wiring sheets or wiring columns or terminal joint brackets of a back connecting mode.

Description

The jockey of model low voltage breaker

The present invention relates to the jockey on the molded case appliance wiring plate, relate in particular to the jockey of low-voltage circuit breaker, described box has some to hold the hole arranged side by side of connector on an one side, a punching of each Kong Douyu terminal block links to each other, and described punching terminal block leaves the inside that is configured in described hole with gap.So that around terminal block the hold-down nut of splicing ear, lug plate or binding post and the little binding post that the rear end connects are installed selectively.

Generally, above-mentioned this device can be connected on the terminal block of cable circuit breaker by the terminal on the terminal block.Also can come the binding post or the lug plate of stube cable, perhaps give described terminal block configuration a little binding post from behind with a bolt that passes the punching terminal block.If adopt bonding conductor type circuit breaker, a terminal or nut need be installed, and this installation is carried out in the workshop generally on terminal block, and always before circuit breaker is installed, carried out.Terminal often is fixed on the terminal block by a screw or on the box, and this assembling needs instrument and one very important period.It should be noted that when instrument in the end assembles, that is to say that when installing instruments or after installing, an ordinary person also can easily select to be suitable for the connector of types of conductors, tool free can be installed to connector on the terminal block in box.

According to being described in detail in the US Patent No 4809132, the splicing ear that proposed in some the seat grooves that can wear the mold cassettes that is connected in sealing so far, is connected with terminal block.These terminals at its side fluting are in place by the ribs guiding of mold cassettes, and are complicated on the whole, do not allow to carry out the connection of other types with some simple Method and kit fors.This is a weak point.

So purpose of the present invention will overcome the complex structure in the above-mentioned prior art and can not connect device of the present invention with common Method and kit for is compact on the whole, and as long as some simple Method and kit fors just can connect.

Characteristics of the present invention are that each Kong Doukai is on the wall of described side wall surface, so that insert connector and need not out box from this side, described these members comprise that one is connected the metalwork on the terminal block, a securing member and a plastic insulation frame, this insulating frame makes described metalwork remain on insertion position in the hole, and described insulating frame has a pair of continuity groove, stretch along the direction of insertion on each side of insulating frame, and work in coordination with combining of side, hole.So terminal block is convenient to enter in the hole of opening on the circuit breaker side, connector is installed also on terminal block.The metalwork that connects has only this insulating part to be connected with mold cassettes by supporting of plastic insulation spare and guiding, and connector is positioned in the hole.When connecting, it itself also is on the metal terminal block that this metalwork is connected to by trip bolt, but does not damage mold cassettes.

About the connection of cable, in the hole, insert a frame terminal, terminal block is introduced in this frame, near the terminal bottom.Bead in the hole that is easy to be embedded into out on terminal block is arranged on its inner face with respect to terminal block at described terminal bottom, thereby along the direction of insertion fixed terminal.Remain on described embedded location on the terminal block even insert an insulating frame terminal in the hole, described insulating frame is led by chute, so that be fixed under the terminal bottom, thereby avoids any moving on terminal block opening bead Way out.Described insulating frame guide chute is made of a pair of groove of opening on the insulating frame side, and combining on these cannelures and the mold cassettes hole wall worked in coordination.Insulating frame is fixed in slotting journey terminal by retaining mechanism, described retaining mechanism for example by one be configured on the groove face, being locked at bead in the ribs groove, to constitute every other retaining mechanism all be available, and according to significant development of the present invention, insulating frame is embodied as frame, adopt the mode that combines with terminal support, pass the latter, constitute insulation barrier.When in the terminal insertion hole, trip bolt is positioned at and makes in the location notch that the hole extends previously towards mold cassettes.Described location notch can make fastened tools pass from the front of box, and can be with one and half pines or or the screw installation and removal terminals of full pine.

Lug plate or binding post are connected on the terminal block, are inserted into nut the rear portion of line plate.The trip bolt that is spun in the nut passes lug plate and terminal block by suitable opening, and this lug plate is fastened on this terminal block.According to the present invention, multiangular nut, particularly rectangle nut are assemblied in the insulation stand groove, are similar to the form of aforementioned dielectric frame, so that in the embedded hole, are led by the ribs on the inwall of hole.This insulating frame is used for nut is guided to the contact plate back, is maintained fixed by this insulating frame that is locked in the hole at this.When screwing trip bolt, nut should suitably be connected on the terminal block, and mold cassettes is not caused direct stress, in order to constitute the insulating frame that additional insulation barrier preferably disposes two side flanges, with the trip bolt frame in the installation site.

As everyone knows, the installation of terminal or nut can be implemented on the instrument that is fixed in terminal block or the station box, this installation or removal do not need any meticulous or give full play to the special flexibility of cable, cable can properly be arranged in the storage tank of suitable connector, has obtained effect easy to install.

Jockey on the molded case appliance wiring plate, especially the jockey of low-voltage circuit breaker, described box has the parallel bore that holds connection on one of its side, each Kong Yuyi perforated board connects, perforated board is configured in the inside in described hole with a gap, so that can around terminal block splicing ear be installed selectively, the hold-down nut of lug plate or binding post, and the little binding post that connects from behind, it is characterized in that, the side in described side is opened in each hole, so that insert connector and need not open box by this side, described member comprises a metalwork that is connected on the terminal block, a securing member, and one make described metalwork remain on that the described insulating frame of the insulating frame of insertion position has a pair of elongated slot in the hole, described groove stretches along the direction of insertion on each side of insulating frame, and with the side in hole on match in conjunction with rib.

By following description to embodiment of the present invention that provide as non-limiting example and shown in the drawings, other advantages and feature will be more readily apparent from.

Fig. 1 is the perspective view of one four utmost point instrument, and its each terminal block all is furnished with four kinds of different jockeys that connect of a suitable the present invention.

Fig. 2 is the part drawing of Fig. 1, and side, connector and the terminal block of box is shown.

Fig. 3 is the sectional arrangement drawing of terminal-connecting means of the present invention.

Fig. 4 is the perspective view of the insulating frame of Fig. 3 jockey.

Fig. 5 is the perspective view of the terminal of Fig. 3 jockey.

Fig. 6 is the view that is similar to Fig. 3, and the jockey of lug plate or binding post is shown.

Fig. 7 and Fig. 8 are similar to Fig. 4 and Fig. 5, and the insulating frame and the nut of Fig. 6 jockey is shown respectively.

Fig. 9 is similar to Fig. 3, and the present invention's jockey from behind is shown.

Figure 10 and Figure 11 are similar to Fig. 4 and Fig. 5, and the insulating frame and the little binding post of Fig. 9 jockey is shown respectively.

Figure 12 is the perspective view of the protective cover of Figure 10 insulating frame.

On all figure, the instrument of section all is the low-voltage circuit breaker of four utmost points, comprises a mold cassettes 10, and control crank 12 passes its front 11, and its back 13 is fixed on the plate or on other suitable bearing supports.At separated into two parts is on two sides 14,15 of the pedestal 16 and the mold cassettes 10 of lid 17, disposes the connector 18 that is respectively circuit breaker input and output side by side.Each utmost point of circuit breaker comprises two connectors 18 that connected by conductor 19, wherein inserts pair of contact 20, and when overload or short circuit, the disconnection of contact can be passed through handle 12 manual controls, also can work automatically by the release (not shown).Some moulded box circuit breakers like this, for example at French No.2, described in 583,570, be well-known, and can adapt to triple-pole type or one pole type.

Connector 18 is identical, below only describes one of them.Conductor 19 is stopped by terminal block 21, and terminal block 21 leads on the side 14 of box 10.Terminal block 21 almost is parallel to front 11 and back 13, is configured in the hole 22, and hole 22 is a rectangle generally, drives 14 1 sides in the side.There are two sides 23 in hole 22, has with gap frame and lives terminal block 21, and front 24 has location notch 25, opens on the front 11 of box 10, is limited by two side ribs 27 and drive to the rear portion bottom.With side 23 gapped terminal blocks 21 be configured in bottom 26 near, simultaneously between side rib 27 and this terminal block 21, leave the gap.Terminal block 21 according to hole 28 perforates, can receive different jockeys in the central, and Fig. 1 has signal, and followingly also will describe in detail.

Fig. 3 to Fig. 5 illustrates a terminal-connecting means, is equipped with first utmost point of Fig. 1 circuit breaker, and other utmost point portion is assembling in the same way all.The standard type frame terminal 29 that cable connects usefulness has a bottom 30, and offside is a trip bolt 31.On the inner face of bottom 30, be furnished with bead 32, be easy to embed in the hole 28 of terminal block 21.This shows, but in terminal 29 patchholes 22, make terminal block 21 enter 29 li of terminals, make screw 31 enter 25 li of prelocalization grooves.Vertical moving forward leans against on the terminal block 21 bottom 30 of terminal 29, and bead 32 is entered in 28, so that what terminal 29 was fixed on the insertion position fixedly is to realize that by insulating frame shown in Figure 4 33 pedestal 34 comprises that a pair of side with hole 22 helps 27 flutings that combine 35.Insulating frame 33 is assembled into the mode that is easy to be embedded into the framework 36 on the terminal 29, constitutes an insulating case.The bottom 37 of this insulation frame 36 is assembled into plate, forms backing plate when time in insulating frame 33 patchholes 22, the bottom 30 of guiding terminal 29.Fluting 35 and side rib 27 constitute on the face of mobile guide chute fluting 35 of insulating frames 33 bead 38, tightens in the insertion position of insulating frame 33 in conjunction with 39 li of sockets, so that insulating frame 33 remains on the insertion position.As seen from Figure 3, insulating frame 33 stops terminals 29 to move down, thus guarantee bead 32 by frame in hole 28.Terminal 29 receives at any time by the fixing according to a conventional method cable of trip bolt 31, and terminal 29 is rigidly attached on the terminal block 21.The installation of terminal 29 and insulating frame 33 thereof does not need any instrument, can make by rights mold cassettes install or fixing onboard.With in the other direction take out insulating frame 33, bead 32 shifts out the method that hole 28 disengages terminal 29, can unload lower terminal 29, takes out terminal from hole 22.

Fig. 6 to Fig. 8 illustrates the jockey of lug plate 40 or punching binding post, and its type is as shown on the utmost point 3 and 4 of Fig. 1.This jockey constitute a common rectangle nut 41 and an insulating frame 42, in its bottom fluting 35 is arranged, be easy to help and match with the side in hole 22.Insulating frame 42 has the bead 43 of 41 grooves of nut, and this nut can be contained on this bead 43, or preferably inserts chute device 44, so that attaching nut 41 and insulating frame 42.But in nut 41/ insulating frame 42 these assembly patchholes 22,,, nut 41 is guided to below the punching terminal block 21 by method shown in Figure 6 by slotting 35 and the chute that constitutes of side rib 27.On the locked position of insulating frame 42, align with the hole 28 of terminal block 21 in the hole 45 of nut 41, and the enforcement that connects places on the terminal block 21 lug plate 40, and when fixing this assembly with screw 46, passes lug plate 40, terminal block 21 and nut 41 in turn.Installing and connecting apparatus is simple especially, and screw 46 is connected on the wiring utmost point 21 nut 41 and cause stress can not for box 10.To be replaced with other a kind of connected modes to this nut 41 jockeys,, need not specific purpose tool as long as take out the insulating frame 42 of band nut 41 simply.Extremely go up at the 3rd of Fig. 1 and Fig. 7, a kind of insulation of being furnished with two side flanges is shown adds 42, described flange is used for living terminal block 21 and screw 46 at the insertion position frame, to improve electric insulating effect.The 4th utmost point of Fig. 1 is furnished with the simplification insulating frame 42 of a naked flange 47.

The electrode 2 of Fig. 9 to Figure 12 and Fig. 1 illustrates a kind of the third jockey that can connect from behind.This jockey comprises a little binding post 48 and an insulating frame 51.There is the little binding post 48 of a positive square section to terminate in face 49 1 sides, and is furnished with connecting plate 52 at offside with perforation 50.Insulating frame 51 is furnished with sleeve pipe 53, stretches along the direction perpendicular to fluting 35, is easy to match with side rib 27, to constitute above-mentioned guide chute.Little binding post 48 inserts in the sleeve pipes 53, and integral body is configuration like this: when 22 li of insulating frame 51 patchholes, face 49 is positioned at terminal block 21 back, and the hole 28 of screwed hole 50 and terminal block 21 meets at right angles.Trip bolt 54 passes terminal block 21, is screwed in the screwed hole 50, connects terminal block 21 and little binding post 48, to constitute a kind of connection from behind.Little binding post 48 preferably includes a ring-type bead 55, limits little binding post 48 and enters insulating frame 51, so that correctly this little binding post is fixed on the terminal block 21.When tightening screw 54, the polygonal cross section of little binding post 48 or square-section stop any rotation of binding post.The elongated portion that insulating frame 51 is preferably in sleeve 53 comprises a protecting screen 56 that covers trip bolt 54, to improve the insulation effect that connects.For fear of any possibility that contacts with screw 54, an additional member 57 as shown in figure 12 can be fastened on the insulating frame 51 and meet at right angles with protecting screen 56.This member 57 has a protective cover 58, is easy to, avoid contacting with the termination of screw 54 so that block the latter in the turnover of the end of protecting screen 56.Protective cover 58 has a hole, can tighten or unscrews screw with wrench.This cover also can take off, so that essential screw is installed after installing insulating frame.The installation of jockey has been oversimplified again, and stretch at the rear portion of little binding post 48 between side rib 27, decides on the size of circuit breaker.

Circuit breaker is also characteristic when it is installed, and different connection types can carry out with circuit breaker is supporting, also can provide according to the requirement of setter.The replacing of connection type can not torn instrument open and carried out on the spot, and various types of instrument connects combination and all is fine.

Any jockey of the present invention during installation or when tightening hold-down screw, does not all have any harm to box 10 all in box 10.Certainly, the present invention does not limit to specifically described execution mode yet.

Claims (10)

1. the jockey of jockey, the especially low-voltage circuit breaker on mold cassettes (10) the formula appliance wiring plate (21), described box (10) have on one of its side (14,15) and hold connection (29,33; 41,42; 48,51) parallel bore (22), each hole (22) is connected with a perforated board (21), perforated board (21) is configured in the inside of described hole (22) with a gap, so that can center on the little binding post (48) that terminal block (21) is installed the hold-down nut (41) of splicing ear (29), lug plate (40) or binding post and connected from behind selectively, it is characterized in that, open in described side (14 in each hole (22), 15) a side, so that insert connector and need not open box (10) by this side, described member (29,33; 41,42; 48,51) comprise a metalwork (29,41 that is connected on the terminal block (21), 48) a, securing member (31,46,54), and insulating frame (33 that makes described metalwork remain on insertion position in the hole (22), 42,51), described insulating frame (33,42,51) a pair of elongated slot (35) is arranged, described groove (35) stretches along the direction of insertion on each side of insulating frame, and with the side (23) of hole (22) on match in conjunction with rib (27).

2. according to the jockey of claim 1, it is characterized in that, extended by one or two location notch (25) in each hole (22), described location notch (25) is opened in described side (14,15) side, and pass through on the back (13) and/or front (11) of box (10), so that connecting little binding post (48), lock-screw (31) or back pass through.

3. according to the jockey of claim 1 or 2, it is characterized in that insulating frame (33,42,51) has a locking bead (38) that makes insulating frame remain on insertion position in the hole (22).

4. according to claim 1,2 or jockey, it is characterized in that, described frame terminal (29) comprises a rear portion (30) that links to each other with described terminal block (21) and installation trip bolt (a 31) front portion, described rear portion (30) its with face that terminal block (21) links to each other on a bead (32) in the hole (28) that embeds terminal block (21) is arranged, described insulating frame (33) is in patchhole (22) time, lean against on the face relative, so that terminal (29) is fixed on the terminal block (21) by the embedding of described bead (32) with the bead (32) at terminal (29) rear portion (30).

5. according to the jockey of claim 4, it is characterized in that described insulating frame (33) becomes frame shape, wrap the outer wall of terminal (29) in the insertion position so that strengthen electric insulation.

6. according to claim 1,2 or 3 jockey, it is characterized in that, described insulating frame (42) has the seat groove (43) of a described nut (41), be configured to when insulating frame (42) patchhole (22) of band nut (41), make described nut lean against described terminal block (21) and go up so that tighten screw (46).

7. according to the jockey of claim 6, it is characterized in that described insulating frame (42) has flange (47), is split into the insulation barrier around trip bolt (46).

8. according to claim 1,2 or 3 jockey, it is characterized in that, insulating frame (51) has a sleeve (53) that can connect little binding post (48) by the back, stretch perpendicular to described direction of insertion on this sleeve (53) edge, and comprise the polygonal cross section of a fixing described little binding post (48) of rotation and the guide vane end stop (55) of a little binding post of restriction (48) embedding.

9. jockey according to Claim 8, it is characterized in that, described sleeve (53) extends to outside the described little binding post (48), so that wrap trip bolt (54) in the insertion position of insulating frame (51), hinged protective cover (58) links to each other with described sleeve (53), so that occupy an enable possition of leading to trip bolt (54) and from the turnover position of trip bolt one side closure sleeve.

10. according to the jockey of claim 9, it is characterized in that described protective cover (58) is locked on the insulating frame (51).

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