CN100545983C

CN100545983C - The auxiliary equipment of loop breaker

Info

Publication number: CN100545983C
Application number: CNB2004100694292A
Authority: CN
Inventors: 池田清二; 山中尚
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2004-02-24
Filing date: 2004-06-28
Publication date: 2009-09-30
Anticipated expiration: 2024-06-28
Also published as: JP2005243264A; CN1661749A; JP4100356B2

Abstract

A kind of auxiliary equipment of loop breaker, constraining rod (8) by simple shape retrains or removes the action that makes the movable revolving member (S28) of leaf spring (S30), make leaf spring (S30) have the function of alarm contact or auxiliary switch, on revolving member (S28), carried out the display part (28d) that rotates and made this revolving member (S28) return the knob that resets (28e) of original state simultaneously by integrally formed this revolving member of expression (S28) that is provided with.Thus, can provide and to add heavy parts, just can reduce the mutual slip of part greatly, can select the auxiliary equipment of a certain loop breaker in the combination of 2 groups the combination of auxiliary switch or 1 group of auxiliary switch and 1 group of alarm contact.

Description

The auxiliary equipment of loop breaker

Technical field

The present invention relates to loop breaker, the one pole that particularly has the open-close mechanism section of 1 utmost point and an overcurrent trip element with breaker or be configured in a plurality of described one poles with breaker stacked multipole with the breaker side, in auxiliary equipment with the loop breaker of a plurality of switches of loop breaker action interlock is housed.Specifically, the auxiliary equipment that relates to the loop breaker with following function: switching function can have been done to switch between the non-conduction auxiliary signal output of the conducting of contact of the alarm signal output of overcurrent trip action or expression loop breaker at the expression loop breaker.

Background technology

In many groups, for example in 2 groups of switches, the revolving member of each leaf spring that is connected with the terminal that becomes the output of c contact according to the action of loop breaker and by separately repeatedly with become the fixed contact that output of a contact or b contact export and separate contact.When leaf spring separates contact repeatedly with fixed contact, play a part auxiliary switch with the open-close mechanism section of loop breaker or first revolving member of operating grip interlock.And, be not connected as second revolving member with above-mentioned first revolving member, then play alarm contact with the open-close mechanism section of loop breaker or above-mentioned first revolving member of operating grip interlock.In the auxiliary equipment of traditional loop breaker, the function of described second revolving member is switched, that is, disconnected with being connected of first revolving member is can link from the switch knob of peripheral operation and second revolving member by the user to carry out.Simultaneously, second revolving member is not when being connected with first revolving member, must have the 3rd revolving member to get involved, the 3rd revolving member is used for overcurrent trip action with loop breaker and passes to second revolving member (Europe publication communique 106591 (paragraph 0012～0018) for example.In addition, in the aforementioned patent document, first revolving member, second revolving member, the 3rd revolving member and switch knob are called as swivel plate, intermediate bar, display pole and selector respectively.)。

In the auxiliary equipment of traditional loop breaker, intermediate bar is disconnected with being connected of swivel plate be by making intermediate bar through hole and projection tabling from the selector of peripheral operation, described projection moved in the inwall friction of the lid of the shell of the auxiliary equipment of loop breaker and pedestal carry out again.The result is to exist the shortcoming because of part mutual slip causing parts depreciation.In addition, when intermediate bar and swivel plate are disconnected, promptly, when intermediate bar plays the function of alarm contact, the state variation of loop breaker is passed to intermediate bar rather than swivel plate, and, in the opening and closing operations of carrying out loop breaker, need the display pole that action is retrained by engaging with the operating portion of triping.But because the shape of described display pole is: the distance of the connecting portion between center of rotation and intermediate bar is about 2 times, so exist the problem of having to add heavy parts with respect to the distance of the center of rotation and the holding section between operating portion of triping in vertical direction.

Summary of the invention

The object of the invention is, provide the auxiliary equipment of following a kind of loop breaker: need not add heavy parts, just the mutual slip of part can be reduced greatly, a certain in the combination of the combination of 2 groups of auxiliary switches and 1 group of auxiliary switch and 1 group of alarm contact can be selected.

In the auxiliary equipment of loop breaker of the present invention, the confining part that has simple shape by utilization retrains or removes the action that makes the second movable revolving member of leaf spring, makes leaf spring have the function of alarm or auxiliary switch.In addition, when the occasion that switching member is set in the auxiliary switch side, described loop breaker is when opening state, described confining part engages with described second revolving member, and the 1st holding section of described confining part and described second revolving member is positioned near the center of rotation of described second revolving member.

The auxiliary equipment of loop breaker of the present invention comprises: first revolving member, second revolving member, leaf spring, 2 groups of auxiliary switches, switching member, described first revolving member is disposed at the side of loop breaker, and with loop breaker in the position of operating grip of the open-close mechanism section that is provided with or loop breaker rotate accordingly; Described second revolving member is followed the displacement of described first revolving member and is moved; Each described leaf spring at one end has travelling contact respectively, and the other end is connected with the terminal that becomes c contact output and links with the rotation of described first and second revolving members respectively; Described 2 groups of auxiliary switches are made of 2 groups of fixed contacts, described first and second revolving members and the described leaf spring corresponding with these revolving members, wherein said 2 groups of fixed contacts have and separate contact with described travelling contact and be used for the output of a contact and a pair of fixed contact that the b contact is exported, and described 2 groups of auxiliary switches are with the non-conduction outside of informing of the conducting of described loop breaker contact; Described switching member makes certain 1 group of described auxiliary switch as alarm contact the situation that described loop breaker has been done the overcurrent trip action be informed the outside, it is characterized in that, be set at the occasion of alarm contact side when described switching member, at described loop breaker when opening state, described confining part engages with described second revolving member, and the 1st holding section between described confining part and described second revolving member is positioned near the center of rotation of described second revolving member.The result is can obtain adding heavy parts and just can reduce the part auxiliary equipment of the loop breaker of slip each other greatly.

The simple declaration of accompanying drawing

Fig. 1 be will the expression embodiment of the invention the auxiliary equipment of loop breaker be installed in stereoscopic figure on the body.

Fig. 2 A is that body when being set at auxiliary switch, the expression embodiment of the invention is in the auxiliary equipment cut-away view of the loop breaker of ON state.

Fig. 2 B is that body when being set at alarm contact, the expression embodiment of the invention is in the auxiliary equipment cut-away view of the loop breaker of ON state.

Fig. 3 A is that body when being set at auxiliary switch, the expression embodiment of the invention is in the auxiliary equipment cut-away view of the loop breaker of unbuckled state.

Fig. 3 B is that body when being set at alarm contact, the expression embodiment of the invention is in the auxiliary equipment cut-away view of the loop breaker of unbuckled state.

Fig. 4 A is that body when being set at auxiliary switch, the expression embodiment of the invention is in the auxiliary equipment cut-away view of the loop breaker of OFF state.

Fig. 4 B is that body when being set at alarm contact, the expression embodiment of the invention is in the auxiliary equipment cut-away view of the loop breaker of OFF state.

Fig. 5 is the cut-away view of the auxiliary equipment of the loop breaker among Fig. 4 B, by trip button the time.

Embodiment

Fig. 1 is installed in the stereoscopic figure of one pole with breaker (being designated hereinafter simply as body) 151 left surfaces with the auxiliary equipment of loop breaker (being designated hereinafter simply as auxiliary equipment) 101.Fig. 2～Fig. 5 is the cut-away view of the auxiliary equipment 101 that the lid 1 with auxiliary equipment 101 unloads, the A direction from Fig. 1 paper is seen.Body 151 when Fig. 2 A represents to be set at auxiliary switch is for closing the state of (being designated hereinafter simply as ON), Fig. 2 B represents that body 151 is for closing (being designated hereinafter simply as ON) state, body 151 when Fig. 3 A represents to be set at auxiliary switch is unbuckled state, body 151 when Fig. 3 B represents to be set at alarm contact is unbuckled state, body 151 when Fig. 4 A represents to be set at auxiliary switch is for opening (being designated hereinafter simply as OFF) state, and the body 151 when Fig. 4 B represents to be set at alarm contact is for opening (being designated hereinafter simply as OFF) state.When Fig. 5 represents that body 151 is in out state and is set at alarm contact press trip button the time state.

Among Fig. 1, when detecting the overcurrent of circuit, open-close mechanism section starts work, and the operating grip 51 of known body 151 of blocking overcurrent and the handle 3 of auxiliary equipment 101 are connected by not shown pin etc.The ON and the OFF operations linkage of the manual type of handle 3 and operating grip 51.Also be provided with the lid 52 of body 151 at left surface.By described lid 52 being unloaded and the not shown cam of triping is inserted body 151, the displacement of the cam of triping that is produced along with the overcurrent trip action of the open-close mechanism section of not shown body 151 just passes to the hook 11 of auxiliary equipment 101.The result is auxiliary equipment 101 and the body 151 the same unbuckled state (with reference to Fig. 3 A and Fig. 3 B) that become.On figure, upside is a power supply side terminal 53, and downside is load side terminal (not shown).Operating grip 51 and handle 3 expression OFF states (with reference to Fig. 4 A and Fig. 4 B).If switch knob 5 is set in auxiliary switch side (with reference to Fig. 4 B), then under this state, by pressing the contact switching of trip button 4 with switch S 103, simultaneously, the not shown display part of being located at revolving member S28 one end is moved upward (with reference to Fig. 5) with the knob 28e that resets on figure.

Fig. 2 A and Fig. 2 B are except the desired location of switch knob 5 is different, and other is identical.Along with the ON operation of the operating grip 51 of not shown body 151, the handle 3 that is embedded into the 1st set on the pedestal 22 jut 2a is that center of rotation is carried out clockwise direction and rotated with described the 1st jut 2a just.Rotation along with handle 3, the springlock 10 that is connected with handle 3 by connecting rod 9 and is embedded into the 3rd jut 18c of revolving member F18 just is subjected to linking up with 11 constraint, is that the center applies anticlockwise power to make revolving member F18 be that center of rotation rotates counterclockwise with latch 14 thereby this hook 11 utilizes hook spring 17 with latch 14.Because this rotation, the 1st jut 18a of revolving member F18 just clashes with the leaf spring S30 that an end is connected in the terminal F22 of c contact output, and described leaf spring F20 moves to right-hand on the figure paper.At this moment, the link pin 12 that the 1st jut 2a, handle 3 are connected with connecting rod 9 is arranged point-blank (below be referred to as the line of force) with spring detent that connecting rod 9 is connected with springlock 10 13.When handle 3 clockwise directions rotate, the line of force is crossed in the position of link pin 12, be the position of link pin 12 when being in the left side of the line that on the drawing face the 1st jut 2a is connected with spring detent 13, just make revolving member F18 remain in the position shown in the figure as the main spring F19 of extension spring.Thus, the auxiliary switch that constitutes by revolving member F18, leaf spring F20, travelling contact S21, terminal F22, fixed contact a23, fixed contact a24, fixed contact b25 and fixed contact b26, be that the connection of switch F102 is just finished, in other words, travelling contact S21 by will being located at the leaf spring F20 other end be located at the output of a contact, be that fixed contact a24 on the fixed contact a23 contacts, can place the electric signal of ON to export by expression body 151 to the outside.Below for convenience's sake, the output of a contact is called connection, the output of b contact is called disconnection, and, as previously mentioned, switch F102 is fixed to the auxiliary switch function, so in order to distinguish with the part of formation switch S 103 described later, for the part that constitutes switch F102 etc., on its part name, add first alphabetical F of FIXATION.In addition, the 1st jut 18a can produce the contact pressure of travelling contact S21 for fixed contact a24." first revolving member " described in the summary of the invention is meant aforesaid revolving member F18.

On revolving member F18, be provided with the 4th jut 18d.By with described the 4th jut 18d and the spring that is stretched, be that the revolving member S28 that main spring S29 applies clockwise direction power engages, make described revolving member S28 follow the anticlockwise rotation of revolving member F18 and be that center of rotation is carried out anticlockwise rotation with the 2nd jut 2b of pedestal 2, by this rotation, the 1st jut 18a of revolving member F18 just clashes with leaf spring S30, the end of this leaf spring S30 is connected with the terminal S32 that becomes c contact output, described leaf spring S30 on the figure paper to right-hand mobile and revolving member S28 remained in illustrated position.Thus, the connection of the switch S 103 that is made of revolving member S28, leaf spring S30, travelling contact S31, terminal S32, fixed contact a33, fixed contact a34, fixed contact d35 and fixed contact d36 is just finished, in other words, go up the fixed contact c34 that is provided with by the travelling contact S31 that will be located at the leaf spring S30 other end with the fixed contact c33 that becomes the output of a contact and contact, can place the electric signal of ON to export expression body 151 to the outside.The 1st jut 28a can produce the contact pressure of travelling contact S31 for fixed contact c34." second revolving member " described in the summary of the invention is meant aforesaid revolving member S28.

As mentioned above, when switch S 103 is set at auxiliary switch, shown in Fig. 2 A, just the arrow of being located on the switch knob 5 is represented oblique 45 states of spending left on the figure paper.When being set at alarm contact, promptly, shown in Fig. 2 B, when being located at the state of arrow oblique 45 degree on the figure paper on the switch knob 5 to the right, in a series of action, do not change, but contact by travelling contact S31 is gone up set fixed contact c34 with the fixed contact c33 that becomes the output of b contact, body 151 is not externally triped.Promptly, because of output represents that ON or OFF are (in this occasion, output by aforesaid switch F102 becomes ON) electric signal, so the action of switch S 103 is off-states, like this, because switch S 103 can be selected the function of auxiliary switch or alarm contact, so in order to make difference with the part of aforesaid formation switch F102, for the part that constitutes switch S 103 etc., also on its part name, add first alphabetical S of SELECTION.In addition, " switching member " described in the summary of the invention is meant aforesaid switch knob 5.

Below with reference to Fig. 3 A and Fig. 3 B, overcurrent is flowed to body 151 and action that body 151 is triped describes.Fig. 3 A and Fig. 3 B are except the desired location of switch knob 5 is different, and other is identical.As previously mentioned, overcurrent trip action along with the open-close mechanism section of body 151, from the outstanding not shown cam generation displacement of triping of body 151, and with described displacement interlock, hook 11 be that center of rotation is carried out the clockwise direction rotation from the position shown in Fig. 2 A and Fig. 2 B with latch 14.So, because of springlock 10 with its constraint release, so the maintenance of revolving member F18 is removed, promptly, springlock 10 is a center of rotation and carry out counter clockwise direction from the position shown in Fig. 2 A and Fig. 2 B and rotate and cross the line of force with the 3rd jut 18c of revolving member F18, thus, main spring F19 just makes revolving member F18 clockwise direction rotate.This rotation disconnects switch F102, promptly, the 2nd jut 18b of revolving member F18 pushes away leaf spring F20 on the figure paper to left, going up set fixed contact b26 by travelling contact F21 with the fixed contact b25 that becomes the output of b contact contacts, can not the electric signal of ON (because of switch F102 is an auxiliary switch, to trip still be OFF so only can not differentiate with described switch) to outside output expression body 151.Meanwhile, handle 3 and connecting rod 9 become free state, but since handle 3 by handle spring 15 all the time towards the counter clockwise direction application of force, so handle 3 carries out anticlockwise rotation immediately, become OFF position as shown in the figure, and, come illustrated position Yi Bian the springlock 10 that is connected with handle 3 by connecting rod 9 also pushes away hook 11 on one side.At this moment, because of link up with 11 by hook spring 17 towards the counter clockwise direction application of force, so springlock 10 immediately by the hook 11 the constraint.The 2nd jut 18b can produce travelling contact S21 fixed contact b26 is produced contact pressure.

Anticlockwise rotation by handle 3, the trip rod 8 (with reference to Fig. 2 A and Fig. 2 B) that engages with the 1st jut 8a with the recess 3a of described handle 3 is subjected to the clockwise application of force of trip rod spring 16, and attempt is that the center of rotation clockwise direction rotates with the 3rd jut 2c of pedestal 2.But, before carrying out above-mentioned rotation, because described revolving member F18 is to clockwise rotation, be disengaged the revolving member S28 that engages between the 4th jut 18d with described revolving member F18 because the effect of main spring S29 and carry out clockwise rotation equally.Thereby trip rod 8 is rotated the 3rd jut 28c constraint of member S28.Be set at the occasion of auxiliary switch in rotation by described revolving member S28, switch S 103 disconnects, promptly, the 2nd jut 28b of revolving member S288 pushes away leaf spring S30 on the figure paper to left, contacting by travelling contact S31 is gone up set fixed contact d36 with the fixed contact d35 that becomes the output of b contact, can not be the electric signal of ON to outside output expression body 151.In addition, be set at the occasion of alarm contact, switch S 103 is connected, that is, go up set fixed contact d36 by travelling contact S31 with the fixed contact d35 that becomes the output of a contact and contact, and can represent the electric signal that body 151 has been triped to outside output.The 2nd jut 28b can produce the contact pressure of travelling contact S31 to fixed contact d36.In addition, " the 2nd holding section " described in the summary of the invention is meant the holding section between the recess 3a of the 1st jut 8a of aforesaid trip rod 8 and handle 3, and " confining part " is meant aforesaid trip rod 8.

Clockwise direction by revolving member S28 rotates, and the display part 28d that is located at described revolving member S28 one end is moved down on the figure paper of the display part 2d that is located at pedestal 2, thereby be set at the occasion of auxiliary switch, and body 151 is not the ON state.That is, be set at the occasion of alarm contact, can seeing body 151 from the outside respectively clearly and be triped.Like this,, can reduce the part number, make to simplify the structure owing to can see the display part 28d that revolving member S28 rotates from the outside clearly by integrated mode being provided with.

Usually, when overcurrent etc. flows through loop breaker and trips, by set alarm contact, by display lamp and buzzer with this person etc. that informs the electrical management unusually.This moment, the electrical management person waited investigation as soon as possible to cause the reason of overcurrent.Yet, produce sometimes and want to allow ear-piercing buzzer stop, promptly wanting to allow switch S103 rigidly connect the requirement that alarm contact is resetted after logical earlier.And the great majority of the loop breaker that the present invention relates to, the position of operating grip has only ON and OFF.Therefore rotate by operating grip 51 clockwise directions, promptly travel to Fig. 2 B (so-called ON operation) from Fig. 3 B with body 151, can make as alarm contact be that switch S 103 disconnects, but this ON operation can not solve the reason that overcurrent is triped.

Therefore, when being set at alarm contact, move from the position shown in Fig. 3 B towards counter clockwise direction, switch S 103 is disconnected by near the knob 28e that resets the display part 28d that will be located at revolving member S28.Below the action of relevant this disconnection is made an explanation.As previously mentioned, because of trip rod 8 is applied clockwise power by trip rod spring 16, so in case revolving member S28 is rotated towards counter clockwise direction by the knob 28e that resets, just under the situation that the 2nd jut 8b that is located on the trip rod 8 does not clash with the jut 5a that is located on the switch knob 5, trip rod 8 is rotated toward the clockwise direction.So, be located at the downside (with reference to Fig. 4 B described later) that the 3rd jut 8c on the trip rod 8 enters the 3rd jut 28c of the revolving member S28 on the figure paper, revolving member S28 is held.Thereby switch S 103 disconnects, that is, travelling contact S31 goes up set fixed contact c34 with the fixed contact c33 that becomes the output of b contact and contacts, thus the equal electric signal of situation that has resetted to outside output and body 151.In other words, can stop the output of trip signal.Like this, owing to the reset knob 28e of revolving member S28 from external reset can be able to be reduced the part number, make to simplify the structure by integrated mode being provided with.In addition, " the 1st holding section " described in the summary of the invention is meant the holding section between the 3rd jut 28c of the 3rd jut 8c of aforesaid trip rod 8 and revolving member S28.

Action till the following describes from unbuckled state (also comprising aforesaid reset operation) to ON.As previously mentioned, because of springlock 10 is retrained by hook 11,, make revolving member F18 and revolving member S28 carry out anticlockwise rotation so pass through the ON operation of the operating grip 51 of not shown body 151.Utilize this rotation,, make trip rod 8 remove these constraints and attempt to rotate toward the clockwise direction also with aforementioned the same.At this moment, be set at the occasion of auxiliary switch, from Fig. 3 A, also can find out, the 2nd jut 8b of trip rod 8 and the jut 5a of switch knob 5 clash, stop further clockwise direction to rotate, and, by the clockwise direction rotation of handle 3, make the 1st jut 8a engage (with reference to Fig. 2 A) with recess 3a, so trip rod 8 return slightly to counter clockwise direction.Like this, the position of trip rod 8 is basic identical in Fig. 2 A and Fig. 2 B.

In addition,, can find out also that the 2nd jut 8b does not clash with jut 5a from Fig. 3 B being set at the occasion of alarm contact.Like this, compare when being set at auxiliary switch, trip rod 8 further rotates toward the clockwise direction, but because of the 1st jut 8a still engages (with reference to Fig. 2 B) with recess 3a, and trip rod 8 returns to counter clockwise direction, so this position is basic identical in Fig. 2 B and Fig. 3 B.And, even at aforesaid reset operation, be under the state that has been switched of revolving member S28 (with reference to Fig. 4 B described later), be that the 1st jut 8a engages with recess 3a too, trip rod 8 still counter clockwise direction rotates and comes the position shown in Fig. 2 B.At this moment, the 4th jut 18d of revolving member F18 replaces trip rod 8 and continues the revolving member S28 that attempts to carry out the clockwise direction rotation owing to the effect of main spring S29 is kept.Like this, owing to described trip rod 8 has been removed maintenance to revolving member S28 towards anticlockwise rotation, make revolving member S28 reinstatement, that is, display part 28d can not move down on the figure of display part 2d paper.In addition, no matter be set at auxiliary switch or be set at alarm contact, the switch F102 behind the ON EO is identical with the action of switch S 103, the Therefore, omited explanation.

Below with reference to Fig. 4 A and Fig. 4 B, the action that the OFF operation by the operating grip 51 of not shown body 151 is produced describes.When handle 3 when counterclockwise rotating and cross the line of force, the maintenance of revolving member F18 is disengaged, main spring F19 rotates revolving member F18 toward the clockwise direction, travelling contact S21 goes up the fixed contact b26 that is provided with the fixed contact b25 that becomes the output of b contact and contacts, can not that ON is (because of switch F102 is an auxiliary switch to outside output expression body 151 thus, to trip still be OFF so only can not differentiate with aforementioned switches) electric signal, this point is also identical with Fig. 4 B with Fig. 4 A.At this moment, still linked up with 11 constraint because of springlock 10 and moved, so the springlock 10 during the OFF EO is the same with Fig. 3 with the position of hook 11.Like this, a succession of action of switch F102 is all identical in Fig. 4 A and Fig. 4 B.

On the other hand, for the action of switch S 103, different function settings can cause variation, and it is made an explanation respectively.As previously mentioned, trip rod 8 rotates (with reference to Fig. 2 A and Fig. 2 B) toward the clockwise direction with handle 3 anticlockwise rotation interlocks and beginning.At this, when the occasion that is set at auxiliary switch, shown in Fig. 4 A, the 2nd jut 8b of trip rod 8 and the jut 5a of switch knob 5 clash, stop the clockwise rotation of trip rod 8, pass through the clockwise rotation of revolving member F18 simultaneously, the maintenance of revolving member S28 is removed, thus, the 3rd jut 28c of the revolving member S28 that rotates toward the clockwise direction because of the effect of main spring S29 makes trip rod 8 slightly towards counterclockwise returning and being in the essentially identical position with Fig. 2 A.Because the rotation of this revolving member S28, switch S 103 disconnects, promptly, because travelling contact S31 contacts with fixed contact d36 on becoming the fixed contact d35 that the b contact exports, can still not the electric signal of ON to outside output expression body 151, but if remove outside the constraint this point that has or not springlock 10 in this OFF operating process, Fig. 4 A is identical with Fig. 3 A.In addition, shown in Fig. 4 A, hook 11 is rotated member F18 and side plate 27 clampings, about this point, other figure (except that Fig. 1) beyond Fig. 4 A is also identical, because of the action of springlock 10 and hook 11 is understood easily, so omitted the expression to it in the figure beyond Fig. 4 A.

Being set at the occasion of alarm contact, shown in Fig. 4 B,,, trip rod 8 rotates so continuing clockwise direction because of the 2nd jut 8b does not clash with jut 5a.So, because revolving member F18 rotates toward the clockwise direction, being disengaged the revolving member S28 that keeps also attempts to rotate toward the clockwise direction, but before described rotation, the 3rd jut 8c of trip rod 8 enter the 3rd jut 28c on the figure paper the bottom and engage with it, so revolving member S28 can further not rotate.As mentioned above, revolving member S28 rotates slightly toward the clockwise direction, and applied sufficient contact pressure to travelling contact S31 by the 1st jut 28a, so can not leaving the fixed contact c33 that becomes the output of b contact, travelling contact S31 goes up set fixed contact c34.Thereby switch S 103 continues to disconnect, and, can continue the electric signal that output expression body 151 is not triped to the outside that is, with aforesaid expression switch F102 not the signal output of conducting match, can learn that body 151 has been in the OFF state by manual operation.

As mentioned above, the revolving member S28 that can be used as these two kinds of switches of auxiliary switch or alarm contact under the situation that does not change its center of rotation, OFF when only relying on trip rod 8 to realize being set at alarm contact operation down constraint or ON operates and the constraint relief when triping.And, the interlock that the necessary and handle of the constraint of revolving member S28 is 3 constitutes by simple shape, specifically, adopted from the 1st jut 8a and the 3rd jut 8c of near configuration left and right directions roughly of the center of rotation of trip rod 8, so can reduce the mutual slip of part greatly, and the action of handle is successfully passed to revolving member S28.When being set at auxiliary switch, the constraint of the trip rod 8 still switch knob 5 of available simple shape is carried out.Thus, needn't add the part of big shape, part also reduces, and is simple in structure, and switch number of times aspect also can obtain the higher switch of reliability.Also can find out from Fig. 4 B, the OFF operation when being set at auxiliary switch, unique is that leaf spring F20 and leaf spring S30 action are different.But make two leaf springs opposed by the output of b contact is arranged at the inboard this moment, therefore especially can improve the design freedom to fixed contact.

If will be to informing with terminal 6a～6c of switch F102 and the terminal 7a～7c of switch S 103 (all with reference to Fig. 5) display lamp that be connected, not shown or buzzer loop etc. whether the function of means is reliably confirmed respectively, if auxiliary switch, then as long as merely body 151 is done ON and OFF operation.But if alarm contact, because of the loop breaker great majority that auxiliary equipment of the present invention is housed do not possess trip button, thus when confirming, considered in fact to make overcurrent flow through loop breaker, but this method is unrealistic.Therefore, be conceived to when being set at alarm contact, body 151 be carried out the occasion of OFF operation, promptly, be conceived to the 8d of bar portion that the center of rotation with trip rod 8 is connected with the 3rd jut 8c uniquely with the occasion of appearance 2e (with reference to Fig. 1) almost parallel of pedestal 22, and this confirmation method is described with reference to Fig. 5.

Between handle 3 and display part 2d, has trip button 4.As previously mentioned, when 8d of bar portion and appearance 2e almost parallel (with reference to Fig. 4 B), by pressing downwards on the figure paper at described trip button 4, trip rod 8 is just towards counterclockwise rotating.Like this, the revolving member S28 that is subjected to the clockwise power that main spring S29 applies just be disengaged trip rod 8 the 3rd jut 8c constraint and rotate toward the clockwise direction.Thereby the display part 28d that is located at revolving member F18 one end just moves below on the figure paper to the display part 2d that is located at pedestal 2.Connect by switch S 103 again, promptly, travelling contact S31 is contacted with the fixed contact d36 that is provided with on the fixed contact d35 that becomes the output of a contact, can export the equal electric signal of situation of having triped, can easily confirm the function of the means of informing to the outside with body 151.By flexible use trip rod 8, needn't add special part, just can realize that simulation trips (function of triping), and, by described trip rod 8 and trip button 4 being arranged at the left side on the figure paper of handle 3, can successfully carry out the operation of trip button 4.Be applied to the power that makes progress on the figure paper by 37 pairs of trip buttons 4 of trip button spring, in case the action of pressing of trip button 4 is ended, trip button 4 promptly returns the origin-location, and this moment, the position relation of each part was identical with Fig. 3 B.Reset operation after this operation is identical with the ON operation, the Therefore, omited.

In the above description, as representative among Fig. 1, be the left surface that auxiliary equipment 101 is installed in body 151, but also can find out that right flank also is provided with lid 52, so also body 151 can be arranged on right flank from Fig. 1.In addition, though not shown among the figure, also can insert described auxiliary equipment 101 by the cam of will triping, all can stacked many auxiliary equipments 101 at left surface and right flank.

For switch knob 5,, can improve its convenience by select auxiliary switch or alarm contact by the user.The user who has requires aforementioned auxiliary equipment 101 is installed in right flank, but to prevent the misoperation of the switch knob 5 that normality is operated, or require the combination of 2 groups of auxiliary switches or 1 group of auxiliary switch and 1 group of alarm contact, at these requirements, making side is after having set switch knob 5, do not allow the user set with lid 1 seal such as grade, promptly form so-called non-selecting type auxiliary equipment, this device also belongs to scope of the present invention.In addition, auxiliary equipment as loop breaker, for example also can remove the part of the formation switch F102 except revolving member F18 and the loop breaker of 1 group of auxiliary switch or 1 group of alarm contact is only arranged, or for example remove the part that constitutes switch S 103 and the loop breaker that only has 1 group of auxiliary switch.

Claims

1. the auxiliary equipment of a loop breaker, comprise: first revolving member (18), second revolving member (28), leaf spring (20,30), 2 groups of auxiliary switches (102,103), switching member (5), described first revolving member (18) is disposed at the side of loop breaker (151), and with loop breaker in the position of operating grip of the open-close mechanism section that is provided with or loop breaker rotate accordingly; Described second revolving member (28) is followed the displacement of described first revolving member (18) and is moved; Each described leaf spring (20,30) at one end has travelling contact (21,23) respectively, and the other end is connected with the terminal (22,32) that becomes c contact output and links with the rotation of described first and second revolving members respectively; Described 2 groups of auxiliary switches (102,103) are made of 2 groups of fixed contacts (23,25) (33,35), described first and second revolving members and the described leaf spring corresponding with these revolving members, wherein said 2 groups of fixed contacts (23,25) (33,35) have and separate contact with described travelling contact and be used for the output of a contact and a pair of fixed contact (24,26) (36,34) that the b contact is exported, and described 2 groups of auxiliary switches (102,103) are with the non-conduction outside of informing of the conducting of described loop breaker contact; Described switching member (5) makes certain 1 group of described auxiliary switch as alarm contact the situation that described loop breaker has been done the overcurrent trip action be informed the outside, it is characterized in that,

Be set at the occasion of alarm contact side when described switching member, at described loop breaker when opening state, confining part (8) engages with described second revolving member, and the 1st holding section (8c, 28c) between described confining part and described second revolving member is positioned near the center of rotation of described second revolving member.

2. the auxiliary equipment of loop breaker as claimed in claim 1, it is characterized in that, the 1st holding section is provided in a side of the jut (8c) on the confining part (8), and the 2nd holding section (8a, 3a) that makes the engaging of described confining part (8) and handle (3) is located at a side opposite with described jut with respect to the center of rotation of described confining part.

3. the auxiliary equipment of loop breaker as claimed in claim 1, it is characterized in that, when 4 fixed contacts (24,26) (36,34) of described 2 groups of fixed contacts are configured on the straight line roughly and switching member is set at the occasion of alarm contact side, 2 fixed contacts in the outside become the output of a contact, and 2 inboard fixed contacts become the output of b contact.

4. the auxiliary equipment of loop breaker as claimed in claim 1, it is characterized in that, be set at the occasion of auxiliary switch side when switching member (5), the jut of being located on the described switching member (5a) is positioned on the rotary motion trace of the 2nd jut (8b) that is located on the confining part (8), the jut of described switching member (5a) rotation to confining part when loop breaker is out state retrains, and described confining part does not engage with second revolving member.

5. the auxiliary equipment of loop breaker as claimed in claim 4 is characterized in that, and is all identical when the position of the center of rotation of described second revolving member is set with alarm contact when auxiliary switch is set.

6. the auxiliary equipment of loop breaker as claimed in claim 4, it is characterized in that, described first revolving member is configured on the downside and the position relative with second revolving member of handle, and confining part is configured between described first revolving member and described second revolving member simultaneously.

7. the auxiliary equipment of loop breaker as claimed in claim 6, it is characterized in that, be provided with the trip button (4) that confining part is rotated from the outside, described trip button (4) is positioned between the center of rotation and jut (8c) of described confining part, when described confining part engages with second revolving member, by pressing described trip button, described second revolving member is rotated, thereby make described confining part and trip button have the function of triping.

8. the auxiliary equipment of loop breaker as claimed in claim 4 is characterized in that, is provided with display part (28d) on second revolving member, with this display part can from the outside see clearly and first revolving member between interlock action.

9. the auxiliary equipment of loop breaker as claimed in claim 8 is characterized in that, when switching member is set at the occasion of alarm contact side, by the reset portion (28e) of being located at the display part right-hand member, second revolving member that can will rotate from the outside resets.

10. the auxiliary equipment of loop breaker as claimed in claim 4 is characterized in that, switching member is enclosed in lid 1 inboard and can not operates from the outside.