FR2671907A1 - CIRCUIT BREAKER WITH VARIABLE MANUAL CONTROL. - Google Patents

Abstract

The device according to the invention comprises a switch (13, 14, 15) whose movable contact (15) is controlled by a mechanism (20) which can be actuated, either from a magnetic and / or thermal trip (18, 19) , or from at least one manual control button (18). The mechanism (20) comprises a part which switches between an open position and a closed position and which has two arms actuated by two respective pushers with reciprocating action or by a single rotary button with bilateral action, which acts on one of them. with both arms. The invention therefore makes it possible to associate different control buttons with a circuit breaker without having to modify the circuit breaker mechanism.

Description

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  CIRCUIT BREAKER WITH VARIABLE MANUAL CONTROL.

  The present invention relates to a circuit breaker with variable manual control, that is to say that accepts buttons of

control of different types.

  Circuit breakers usually include in a box

  tier: at least one fixed contact and a movable contact forming a pair of separable contacts,

  a mobile contact control mechanism comprises

  a lock and can be operated, either from a magnetic and / or thermal trigger to open

  contacts, or from at least one button

  manual command to open and close the contacts.

  It is desirable for the operator to order manual-

  such a circuit breaker with one or more translational or pivoting buttons, provided according to the environment in which the circuit breaker and uses will be used

affecting this environment.

  In addition, the circuit breaker manufacturer wishes to simplify

  proud of the manufacturing, especially the assembly and the

ckage parts that compose it.

  The invention aims in particular at associating with a disjunc-

  different manual control buttons, not moving from one command type to another

  that a reduction as small as possible of the

  circuit breaker. In particular, it has another purpose to avoid in such a case

  to modify the control mechanism of the circuit breaker.

  According to the invention the control mechanism comprises a tilting piece

  able to pivot about an axis, to take a posi-

  opening position and a closed position, the tilting piece includes two arms that can be

  actuated, either individually and unilaterally

  born by a manual push-button

  opening and a push-button for closing

  alternating active movements in the same direction, or only one and bilaterally by a single pivoting manual overture control button

  and closing with bilateral active movement.

  The tilting piece advantageously comprises two spans

  each belonging to a respective arm, one of the

  being designed to cooperate, either with a button or

  one-way active push button, either with a

  swivel tone with two-sided active movement.

  Embodiments of the invention are described below.

  after as non-limiting examples and with reference

in the accompanying drawings.

  Figure 1 shows schematically the elevation of a circuit breaker according to the invention. 2 -

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  Figures 2 to 4 show in side elevation

  the control mechanism of this disjunc-

  in the respective positions of closure

  ture, triggering and opening, in one embodiment with two pushbuttons. Figures 5 and 6 show a detail of the front part of the circuit breaker of Figure 1 when it comprises a single button, in the

  respective positions of opening and closing

  ture. Figure 7 shows a side view of this detail.

  Figure 8 shows the front part of the disjunc-

  of Figure 1 when it includes a

unique button variant.

  Figures 9 and 10 show this part

  according to the arrows IX and X of FIG.

  The apparatus illustrated in FIG. 1 is a circuit breaker

  low voltage multipole of the kind called "circuit breaker-

  This circuit breaker comprises a housing 10 provided towards its front face with at least one control button

  at the rear and rear part of the unit.

  The front panel may be provided on the housing itself or on a fixed cover or cover

to the case.

  Each pole of the circuit breaker comprises between two terminals 11, 12 an interruptible current path terminals 11, 12

  used to connect external conductors not

  who are connected to a source of energy

  and a load At the terminals 11, 12 are connected electrically-

  respective fixed contacts 13, 14 A bridge of

  movable contact in translation along an axis U perpendicular

  In the plane PP of the front face i Qa is provided with two contact pieces 16, 17 which cooperate with the fixed contacts 13, 14 to determine the closing and the opening of the current path according to a defect. electrical or manual voluntary order communicated by the operator (s)

  your order (s) or an electrical order.

  On the current path of each pole are a bimetallic thermal release 18 and a trigger

  magnetic 19 The triggers act on

  thus collecting fault information from the various poles and operating a mechanism

  This mechanism has a triggering function

  is resettable and is used to manipulate the movable contacts via a member 21 carrying the contact bridges or a thrust member associated in another way with

contact bridges 15.

  The control mechanism 20 can be actuated in accordance with

  to the invention by a manual control member B consisting either of pushbuttons Bl, B'l (FIGS. 2 to 4) with alternating active unilateral movement, or by a pivoting knob 4-0 (FIGS. 5 to 7). or 50 (FIGS. 8 to 10) with bilateral active movement, by means of the same pivoting part 30 for driving the mechanism The mechanism 20 is of any known type and it can be housed centrally in the housing 10 as indicated in FIG. laterally or

  still frontally close to the face Oa.

  In the embodiment of the organ B with push-buttons

  reciprocal evenings Bl, B'1, these are movable in

  translation along respective directions C, C 'parallel

  between them and the U axes of displacement of the contact bridges 15 They could also rotate around

  axes parallel to the plane P-Pl or contained in this plane.

  They pass through openings in a housing, cover or

hood Kl.

  - The tilting piece 30 is pivotally mounted about an axis DD parallel to the plane PP and has, on either side of this axis, two bearing surfaces 31, 31 'situated at the ends of arms 32, 32' and cooperating with respective bearing faces 33, 33 'of the buttons Bi, B'l

  Examples are rounded nipples.

  The tilting piece cooperates via a rod 22 with a spoiler 23 which, on the one hand, is capable of being retained or released by a hook 24 pivoting about an axis 25, on the other hand, is associated with a piece 26 in shape

  This angle pivots about an axis 27, is reached

  to the member 21 carrying the contact bridges, and is

  biased with the member 21 by a trigger spring 28

and opening.

  When the contact carrier 21 is in the up position (FIG. 1), the movable contact parts 16, 17 are applied to the fixed contacts 13, 14 (closure) When the contact carrier 21 is in the low position (FIGS. 2 and 3) ), the parts 16, 17 are separated from the fixed contacts (opening) The parts 22-28 constituting the control mechanism 20 are known in themselves and will not be

described in more detail.

  The closing position ("on") of the circuit breaker is illustrated in FIG. 2. The closure button B1 is depressed, which forces, via the bearing 31, the part 30

  to counterclockwise as shown

  31 'is applied to the bearing face 33' of the opening button B'1, which forces it to exit and protrude significantly from the front face 10a The chain

  kinematic 22-28 brings the contact carrier 21 into the posi-

which is indicated.

  When an electrical fault occurs, for example detected by a thermal or magnetic release 18, 19, the hook 24 pivots clockwise (Figure 3) and 6 - releases the spoiler 23 This releases the bracket 26 which

  allows the spring 28 to lower the door-

  contacts 21 to give the desired opening of the contacts In a second phase, the closure button Bl rises under the effect of an unspecified spring, driving the bearing 31 by a bearing face 34 opposite the face 33, which makes the tilting piece 30 pivot in a clockwise direction The bearing surface 31 'acts on a bearing face 34'

  push button B'1 to lower it, the buttons

  finally having the positions indicated in dashes.

  When the user wants to manually open the contacts from the closing state indicated in Figure 2, he presses the opening button B'1 (Figure 4) The tilting piece pivots clockwise via the support face 33 'and the range 31', while the closure button Bl rises under the effect of the scope 31 cooperating with its

face 33.

  In the embodiment with a single pivoting knob illus-

  FIGS. 5 to 7, this button 40 is of the type called

  "tumbler" Button 40 partially occupies an opening

  ture of the front panel i Qa of a housing or hood K 2 and is pivotally mounted about an axis EE parallel to the plane PP and perpendicular to the axis DD of rotation of the tilting part 30 The button 40 has a counter 41 cooperating with a light 42 of a lever 43 which pivots at one end about an axis FF and which has at the other end a fork or a development provided with a hollow 44 which cooperates with a bearing 31 of the workpiece tilting to drive this one The other reach

  31 'remains inactive by the button.

  When the circuit-breaker is in the off state (FIG. 5), the tilting piece 30 and the parts 22-28 of the

  trigger are in the same position as on the

Figure 4.

  7 - To close the contacts, the user puts the button in the position shown in FIG. 6 The pin 41 of the button forces the lever 43 to turn counterclockwise about the axis F-F; the lever drives the convex bearing 31 to put the tilting piece in the position of FIG. 6, which is the same as that shown in FIG. 2, with the effect of rearming the mechanism 20 and

to close the contacts.

  In the event of an electrical fault, the mechanism 20 and the tilting part 30 take the positions successively represented in FIGS. 3 and 4, while the button 40 and the lever 43 are brought back to the state illustrated by the figure, under the effect of FIG. a return spring associated with the button

or at the lever.

  In the embodiment illustrated in FIGS. 8 to 10, the single button 50 is pivotally mounted about a G-G axis.

  perpendicular to the plane P-P of the front face l Oa of the box

  Tier or hood K 3 of the apparatus The button passes through an opening of this front face, so as to have outside the housing a portion 51 of grip and inside the housing part 52 transmission

  provided with fingers or notches 53 which cooperate with recesses

  This sector rotates about an axis HH parallel to the axis DD of the tilting piece 30 and, thanks to an arm 56 having at its free end a hollow or a fork 57 cooperating with the convex range

  31, it returns the movement of the button to the room 30.

  The button 50 and the sector 55 are shown in FIGS. 8 to 10 in the "off" state of the circuit breaker. The operation is the same as for the circuit breaker of FIGS. 5 to 7, with two stable positions of opening and closing for the button and the tilting piece, to

  except that the folding at 90 of the pivoting of the

  tone is performed by means of the return sector 55.

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  It can be seen that the manufacturer of the circuit breaker only has to report different control buttons and covers or casing covers to switch from one embodiment to another. The invention, which is applicable to all types of circuit breakers, allows to offer a wide variety of manual controls for these circuit breakers

  while simplifying their manufacture.

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Claims (5)

  1 circuit breaker comprising in a housing at least one fixed contact (13, 14) and a movable contact (16, 17) forming a pair of separable contacts,   a mechanism (20) for controlling the movable contacts   taking a lock and actuable, either from a magnetic trigger and / or thermal (18, 19) to open the contacts, or from at least one manual control button to open and close the contacts, characterized by the make that   the control mechanism (20) comprises a pivoting piece   lante (30) pivotable about an axis, to take an open position and a closed position, the tilting piece (30) comprises two arms adapted to be actuated, either each and alternately by a button- manual opening pushbutton (22) and a closing control push-button (21) with alternating active movements being effected in the same direction, or only one and bilaterally by a single pivoting knob (40, 50). ) manual control   opening and closing with bilateral active movement   ral. Circuit breaker according to Claim 1, characterized in that the push-buttons (B1, B'1) with alternating active movements are each applicable to a bearing surface (31, 31 ') belonging to a respective arm the tilting piece (30).   -10 - 3 circuit breaker according to claim 2, characterized in that one (31) of the surfaces of the tilting piece (30) is adapted to cooperate, either with a   push-button (Bi, B'1), or with a push-button two-sided pivoting device (40; 50).   4 circuit breaker according to one of claims 1 at 3,   characterized by the fact that the staves (31, 31 ')   pushbuttons (Bl, B'1) are located at the ends of two arms on either side of   the pivot axis (D-D) of the tilting piece (30).   Circuit breaker according to one of claims 1 at 4,   characterized in that the bearing surface (31-31 ') of the tilting piece (30) is driven by the control knobs by cooperating rounded nipples. with recesses.   Circuit breaker according to one of claims 1   at 5, characterized by the fact that the pivoting button (40) with bilateral active pivoting movement has a pivot axis parallel to the front face (10 a) of the housing (10).   Circuit breaker according to one of claims 1   to 5, characterized in that the pivoting button (50 '> with bilateral active movement has a pivot axis   perpendicular to the front face (10a) of the housing (10).   Circuit breaker according to Claim 7,   characterized by the fact that the pivoting lute with movement   bilaterally active asset (50) cooperates with the   lante through a turning sector (55).