CN1163929C

CN1163929C - Auxiliary indication unit designed to be fitted to protective circuit breaker

Info

Publication number: CN1163929C
Application number: CNB99104827XA
Authority: CN
Inventors: 安德烈・德普雷; 安德烈·德普雷; 觥ご锲婺; 让－玛丽·达奇尼; 偷隆ぢ矶; 让－克劳德·马顿; ・弗莱明科; 米歇尔·弗莱明科
Original assignee: Schneider Electric SE
Current assignee: Schneider Electric SE
Priority date: 1998-04-17
Filing date: 1999-04-08
Publication date: 2004-08-25
Anticipated expiration: 2019-04-08
Also published as: ES2229648T3; FR2777694A1; CN1233070A; DE69920793D1; DE69920793T2; FR2777694B1; EP0951044B1; EP0951044A1

Abstract

Auxiliary indication unit comprises a first switch 38 for providing a first ON/OFF indication OC for a circuit breaker and a second switch 36 for providing a first ON/OFF indication OC or a second fault signal FS. The second switch is configured by replacing an actuation level 54 having a cam shape or by a selector. A pair of control level 94, 96 connects with an operation level 82 of the second switch 36, a level 94 fits with a cam mechanism 54A, 54B, 108 of the actuation level 54, 154, 254, and another level 96 connects with a turning plate of a mechanism 40.

Description

Be installed to the auxiliary indication unit on the protectiveness circuit-breaker

Technical field

The present invention relates to a kind of auxiliary indication unit with housing, design links to each other with circuit-breaker, comprise by the mechanism manual that connects with circuit-breaker or two change over switches automatically controlling, pass to the described mechanism of servicing unit by will the thread off position of the motion and the handle of circuit-breaker of the first mechanical release lever and the second mechanical return bar respectively, described dropout campaign is produced by the trip gear of circuit-breaker after detecting fault, and the described mechanism of servicing unit comprises:

Actuating handle;

Pass first opening of housing and form the driving lug of described second mechanical shaft;

Pass the release pin of second opening of housing;

Two actuating linkages that link to each other with spring carry out the conversion of change over switch movable contact, and first change over switch wherein provides circuit breaker switching (OC) indication.

Background technology

File EP303,965 have described a kind of auxiliary indication unit that can be for reference, comprise two side by side from the outstanding handle of the header board of housing.First handle is used for driving a change over switch so that the manually closed latter, and the indicator cock position.Second handle is connected on the circuit-breaker and finishes servicing unit and closure circuit-breaker the time.

File EP147,605 provide a kind of convertible auxiliary indication unit, and one of them change over switch can stop at make position by the stop catch of handling with handlebar, and handlebar passes the header board of housing.Selector can make the pivot region of stop catch be limited.

Summary of the invention

The objective of the invention is to obtain a kind of auxiliary indication unit that does not have obvious handle, it has the change over switch that can change opened and closed positions change over switch or fault-signal change over switch at an easy rate into.

Servicing unit according to the present invention is characterised in that: actuating handle covers in the housing that is provided with described driving lug, and comprise cam mechanism, be arranged so that second change over switch provides the described first second fault-signal FS that opens and closes OC indication or indicating circuit circuit breaker tripping to indicate.The actuating linkage of the pair of control bar and second change over switch links, and one of them control lever is worked with the cam mechanism of actuating handle, and the flap of another control lever and described mechanism links.

Therefore, can be converted to the FS type from the OC type at an easy rate by replacing handle, and other parts of described mechanism do not change.

According to a feature of the present invention, the actuating linkage of first change over switch is installed on the pivot of plate pivotally, and drives between extreme closure and open position.

According to a preferred embodiment, actuating handle is driven to the centre position when circuit-breaker takes place to thread off, when driving handle is finished resetting of servicing unit when middle position moves to open position.The cam of OC type handle does not act on the control lever when resetting and confirms that first of second change over switch opens indication.The cam of FS type handle acts on when resetting on the control lever and causes the rotation of bistable state lever and the conversion of second change over switch, the second indication indication from abort situation to resetting-motion of open position.

According to improvement of the present invention, can replace two kinds of non-conversion OC and FS device by a convertible device, this switchable device has the selector that the profile that can make actuating handle changes by the scalable cam.

Description of drawings

By preferred embodiment illustrated in the accompanying drawings is described in detail to provide also as non-limiting example, other advantage of the present invention and feature will become clearer, wherein:

Fig. 1 is the perspective view of auxiliary indication unit of the present invention, and this device illustrates from a side of protruding coupling bar;

Fig. 2 is the schematic diagram that this servicing unit and protectiveness circuit-breaker relation are shown;

Fig. 3 is that the top panel of housing is removed the perspective view of back auxiliary indication unit mechanism;

Fig. 4 to 10 shows the schematic diagram of an OC-OC type auxiliary indication unit at following column position:

Fig. 4: closure,

Fig. 5: pass through the dead point after the manual unlocking,

Fig. 6: open after the manual unlocking,

Fig. 7: this not locking of device after circuit-breaker is threaded off,

Fig. 8: when threading off, pass through the dead point,

Fig. 9: thread off-open,

Figure 10: reset-open after resetting by circuit-breaker,

Figure 11 to 14 shows the schematic diagram that the auxiliary indication of the 2nd FS-OC type is contained in down column position:

Figure 11: the dead point by right bistable state lever after the manual unlocking,

Figure 12: open after the manual unlocking,

Figure 13: the dead point by left bistable state lever when resetting,

Figure 14: reset-open after resetting by circuit-breaker,

Figure 15 illustrates the perspective view of convertible OC-OC/FS-OC (vice versa) auxiliary indication unit;

Figure 16 is the end view of Figure 15;

The selector that Figure 17 and 18 ratios with amplification show in detail Figure 15 respectively is in FS position and OC position;

Figure 19 to 21 shows the selector that is in the FS position, and the handle that is in reset mode is respectively different positions;

Figure 22 to 24 shows the selector that is in the OC position, and handle is respectively different positions when taking place when resetting.

Embodiment

In Fig. 1 and Fig. 2, auxiliary indication unit 10 covers in the housing 12, and housing 12 designs link with switching device, and particularly circuit-breaker 14, and connect the first mechanical release lever 16 and the second mechanical return bar 18.Auxiliary indication unit 10 has and drives lug 20, and is outstanding and be designed to be connected on the pivot support 26 of handle 26 of circuit-breaker 14 and form second mechanical shaft 18 from housing 12 by first curved openings 22.Second opening 30 that release pin 28 passes housing 12 also designs the dropout rod that engages into circuit-breaker 14 and forms the first mechanical release lever 16.Clamp on the side plate that

pallet

32,34 is arranged on housing 12 and servicing unit 10 is fixed on the circuit-breaker 14.The mechanism 35 of circuit-breaker 14 can be at patent FR2, the type of describing in 616,583, and wherein handle is in the centre position between the two extreme open and close positions when taking place to thread off.

With reference to Fig. 3, the housing 12 of servicing unit 10 comprises two change over

switches

36,38, and by operating mechanism 40 controls, design is used for connecting with the mechanism 35 of circuit-breaker 14 by two mechanical shaft 16,18.

Each change over

switch

36,38 comprises and a pair of fixed

contact

46,48; 50,52 movable contacts of working together 42,44.According to the profile of driving handle 54 cams, first turns right changes switching circuit 38 provides switching (OC) indication, and second turns left to change switching circuit 36 provides switching (OC) indication or fault-signal (FS) indication.

The interior splicing ear 56,58,60 of the

contact

42,46,48 that second turns left changes switch 36 and the little left plate recess that covers on housing 12 is electrically connected.The

contact

44,50,52 of first change over switch 38 is electrically connected with splicing ear 62,64,66 on the little right plate that is arranged on housing 12.

Actuating handle 54 is installed in the rotating shaft 68 in the housing 12, can rotate, and supporting is with respect to the driving lug 20 of rotating shaft 68 off-centre limitedly.Drive link 70 connects the latch hook 72 of actuating handle 54 and mechanism 40, and mechanism 40 comprises flap 74 and dropout lever 76.Release pin 28 is fixed on the dropout lever 76, is parallel to drive lug 20.

The pivot 78 of flap 74 between two extreme positions rotates, and dropout lever 76 is hinged in the rotating shaft 80 that is securely fixed on the plate 74.

Movable contact

42,44 is by the hinged flexible sheet metal piece of a pair of bistable state actuating

linkage

82,84, and actuating

linkage

82,84 cooperates with

spring

86,88 in covering on guide 90,92.

Pair of

control bar

94,96 is hinged on the actuating linkage 82 of movable contact 42, and actuating linkage 82 links with change-over circuit 36, and these control levers cooperate with the block 55 (OC) of housing 12 or handle 54 (FS) and plate 74 respectively by their opposite end.Another actuating linkage 84 of the movable contact 44 that links with first change-over circuit 38 is installed on the pivot 78 pivotally, thereby is driven between two extreme positions by flap 74.The curved end of control lever 96 with the hinged region of lever 82 in Long Circle hole 98 in motion.

1) auxiliary indication unit operating in shown in Fig. 4 to 10 in the OC-OC type.In this case, inner handle 54 has first 54A of profile mechanism, and makes control lever 94 can press the block 55 of housing 12.

1.1-manual unlocking

Indicating device 10 is in closure state (Fig. 4), and movable contact 42 reclines with fixed contact 46 and cooperates, and another movable contact 44 is pressed on the fixed contact.When the manual operation of circuit-breaker 14 was finished by handle 26, auxiliary indication unit 10 activated by the driving lug 20 of second mechanical shaft 18, makes handle 54 counter-clockwise swings.Fig. 5 shows the mechanism 40 near the dead point of two actuating linkages 82,84.Two

movable contacts

42,44 are driven into the centre position of separating with corresponding fixed contact.When handle 54 move to corresponding servicing unit 10 open the ultra-Left position of (Fig. 6) state the time, two

levers

82,84 pass through the dead-centre position, make two

movable contacts

42,44 change simultaneously, contact with the fixed contact 48 of change-over circuit 36 and the fixed contact 52 of change-over circuit 38 respectively.Auxiliary indication unit 10 transmits the signal of the open mode of expression circuit-breaker 14.

1.2-manual closing

After the handle 26 of circuit-breaker 14 is driven into open mode, finish the manual closing operation of auxiliary indication unit in the mode opposite with Fig. 4 to 6.

Thread off 1.3-hinder for some reason

The closure state corresponding diagram 4 of servicing unit 10.The dropout of circuit-breaker 14 after detecting fault moves through first mechanical shaft 16 and passes to servicing unit 10, makes dropout lever 76 pivot and the latch hook 72 (Fig. 7) of relieving mechanism 40 clockwise.Handle 54 also is driven into the centre position (Fig. 8) of dropout position of the handle 26 of corresponding circuits circuit breaker 14 by the lug 20 of second mechanical shaft 18.Disconnect spring and make plate 74 rotate counterclockwise, up to against block.Plate 74 drives two bistable state levers 82,84 and surpasses the dead point, and two

movable contacts

42,44 are transformed into respectively on the fixed

contact

48,52 of corresponding block trip status (Fig. 9).Can rocking lever 82 by bar 96.Therefore, servicing unit 10 transmits two signals of opening of expression circuit-breaker or closure state.

1.4-circuit-breaker resets

The resetting of circuit-breaker swings to open position by the handle 26 that makes circuit-breaker 14 by middle dropout position and finishes.After being driven into the end of opening travel position at handle 54, second mechanical shaft 18 moves to load situation with latch hook 72.Because when bar 94 was not driven, lever 82 did not move in this reset operation.Resetting-open position of Figure 10,

movable contact

42,44 remains on position same as shown in Figure 9.

For indicating device being converted to the FS-OC type, only need to get final product with the handle 54 that the handle 154 with cam 54B is replaced the OC-OC type.The remainder of mechanism 40 with describe with reference to Fig. 4 to 10 identical.

2.FS-OC operating in shown in Figure 11 to 14 of the auxiliary indication unit of type:

2.1 manual unlocking

From make position same as shown in Figure 4, the manual unlocking of circuit-breaker 14 is counterclockwise driving handle 154 makes plate 74 rotate in identical direction.Plate 74 is driven into the separation that causes movable contact 44 near the position (Figure 11) at dead point with lever 84, and movable contact 44 mediates.The swing (Figure 12) of lever 84 takes place in the end of plate 74 strokes, and movable contact 44 conversions are on fixed contact 52.Auxiliary indication unit is shown in an open position subsequently, and another movable contact 42 also stably is pressed on the fixed contact 46.By first change-over circuit, 38 indication manual unlocking.

2.2 manual closing

After handle 154 clockwise rotates another extreme position, with Figure 12,11 and 4 opposite directions on by circuit-breaker 14 manual closings.

Thread off 2.3 hinder for some reason

The FS-OC type hinders for some reason and the state of threading off is identical with the state of the OC-OC type of Fig. 7 to 9.

2.4 reset

, after being driven into open position, middle position takes place at handle 154 from dropout-open position of Fig. 9 reset (Figure 13).Latch hook 72 resets and the cam 54B of handle 154 descends bar 154, bistable state lever 82 swings subsequently.Movable contact 42 is transformed into another fixed contact 46 (Fig. 4 resets-open position) from fixed contact 48 (abort situation).It is motionless that the movable contact 44 of another conversion switch circuit 38 keeps in reset mode, and the indication open position.

Two types of OC-OC of auxiliary indication unit and FS-OC constitute the device of two kinds of non-conversions, and the profile by inner handle 54,154 makes them different.

Figure 15 and the convertible auxiliary indication unit 100 of 18 expressions comprise the selector 102 near the opening 22 that drives lug 20.Selector 102 pivots by means of the screwdriver slot of two settling positions centre, and corresponding FS-CO type and OC-OC type are distinguished shown in Figure 17 and 18 in these two positions.Window 104 covers in the header board of housing 12, can see the position of selector 102.

Auxiliary indication unit 100 comprises handle 254, according to the position of selector 102, can be converted to the handle 54 of OC type or the handle 154 of FS shape.Handle 254 is provided with base portion 106, is installed in the rotating shaft 68 pivotally and has to drive lug 20.Scalable cam 108 actions of selector 102 in the rotating shaft 110 that is installed in base portion 106 pivotally.

In FS type (Figure 19-21), selector 102 is in first adjusting position (6 point), and does not cooperate with cam 108 in the rotation process of handle 254.When reset operation takes place when, the sloped-end of cam 108 and be engaged in base portion 106 and bar 94 between so that towards the base portion push strut.

In OC type (Figure 22 to 24), selector 102 is positioned at second adjusting position (4 point), and cam 108 is pivoted counterclockwise.When handle 254 began to rotate, cam 108 passed through for 94 times at bar.

Claims

One kind the band housing (12) auxiliary indication unit (10,100), design links to each other with circuit-breaker (14), comprise two change over switches (36 manually or automatically controlling by the mechanism (40) that connects with circuit-breaker, 38), pass to servicing unit (10 by will the thread off position of the motion and the handle (26) of circuit-breaker (14) of the first mechanical release lever (16) and the second mechanical return bar (18) respectively, 100) described mechanism (40), described dropout campaign is produced by the trip gear of circuit-breaker (14) after detecting fault, and the described mechanism (40) of servicing unit comprises:

Actuating handle (54,154,254);

Pass first opening (22) of housing (12) and form the driving lug (20) of described second mechanical shaft (18);

Pass the release pin (28) of second opening (30) of housing (12);

Two actuating linkages (82,84) that link to each other with spring (86,88) carry out the conversion of the movable contact (42,44) of change over switch (36,38), and first change over switch (38) wherein provides circuit breaker switching, i.e. OC indication,

It is characterized in that: actuating handle (54,154,254) cover in the housing (12) that is provided with described driving lug (20), and comprise cam (54A, 54B, 108), be arranged so that second change over switch (36) provides the described first second fault-signal FS that opens and closes OC indication or indicating circuit circuit breaker (14) dropout to indicate.
2. auxiliary indication unit as claimed in claim 1, it is characterized in that, pair of control bar (94,96) actuating linkage (82) with second change over switch (36) links, a control lever (94) is towards actuating handle (54,154,254), and the flap (74) of another control lever (96) and described mechanism (40) links.
3. auxiliary indication unit as claimed in claim 2 is characterized in that, the curved end of described control lever (96) covers in the Long Circle hole (98) of the actuating linkage (82) that links with second change over switch (36).
4. as claim 2 or 3 described auxiliary indication units, it is characterized in that the actuating linkage (84) of first change over switch (38) is installed on the pivot (78) of plate (74) pivotally, and drives between extreme closure and open position.
5. auxiliary indication unit as claimed in claim 1 is characterized in that, each spring (86,88) covers in the guide (90,92) of working together with corresponding actuating linkage (82,84), to form the toggle link of band dead point path.
6. auxiliary indication unit as claimed in claim 2, it is characterized in that, when circuit-breaker (14) takes place to thread off, actuating handle (54,154,254) be driven to the centre position, described centre position is between two extreme positions of corresponding closure and open mode, when actuating handle (54,154,254) when open position is shifted in middle position, finish resetting of servicing unit.
7. auxiliary indication unit as claimed in claim 6 is characterized in that, the cam (54A) of OC type actuation handle (54) does not act on when resetting on the control lever (94), and confirms that first of second change over switch (36) opens indication.
8. auxiliary indication unit as claimed in claim 6, it is characterized in that, the cam (54B) of FS type actuation handle (154) acts on control lever (94) and goes up and cause the swing of actuating linkage (82) of bistable state level type and the conversion of second change over switch (36) when resetting, the 2nd FS indication indication from abort situation to resetting-motion of open position.
9. auxiliary indication unit as claimed in claim 1, it is characterized in that, comprise can be from the outside approaching selector (102), working together with cam (108) has the handle (54) of two kinds of different profiles with formation, these profiles are suitable for the described OC indication or described the 2nd FS indication of second change over switch (36).