WO1985003617A2 - Unite de securite de commutateur - Google Patents

Unite de securite de commutateur Download PDF

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Publication number
WO1985003617A2
WO1985003617A2 PCT/DE1985/000054 DE8500054W WO8503617A2 WO 1985003617 A2 WO1985003617 A2 WO 1985003617A2 DE 8500054 W DE8500054 W DE 8500054W WO 8503617 A2 WO8503617 A2 WO 8503617A2
Authority
WO
WIPO (PCT)
Prior art keywords
switch
fuse
housing
unit according
plug
Prior art date
Application number
PCT/DE1985/000054
Other languages
German (de)
English (en)
Other versions
WO1985003617A3 (fr
Inventor
Klaus Bruchmann
Original Assignee
Klaus Bruchmann
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Klaus Bruchmann filed Critical Klaus Bruchmann
Publication of WO1985003617A2 publication Critical patent/WO1985003617A2/fr
Publication of WO1985003617A3 publication Critical patent/WO1985003617A3/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/54—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers
    • H01H85/545—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers with pivoting fuse carrier
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/24—Means for preventing insertion of incorrect fuse

Definitions

  • the invention relates to a switch fuse unit 1 with a housing 2, 3, in which at least two housing switch contacts 60, 61, which are electrically insulated from one another, are arranged at rest, one of which is electrically conductively connected to an input current connection 48 and the other to an output current connection 49, a rocker switch 13, which is pivoted in the housing between a switch-off position and a switch-on position, one of a plurality of fuse plugs 18, which can be inserted into an insertion channel 22 of the rocker switch 13 in its switch-off position, a fuse link 75 of a specific nominal current value, for each the shape of the fuse plug 18 is characteristic and can be inserted into the fuse plug 18 and via which the two housing switch contacts 60, 61 are electrically conductively connected to one another in the switched-on position, and a locking device which, after coding to a desired nominal current value only the use of an appropriately coded fuse plug 18 allows.
  • Switch fuse units are used in the power supply lines of a wide variety of devices and systems, which normally have very different nominal current values, ie limit current strengths, when exceeded, the fuse link should respond and disconnect the device or system from the power supply.
  • very different fuse links must be used in the switch fuse unit, which differ in their outer dimensions depending on their nominal current value.
  • a nominal current unmistakability ie the insertion of a fuse link With a nominal current value that is too high, a system of fitting screws, rings and sleeves was previously used which refers to the diameter of the fuse link depending on the nominal current value and can only be replaced with special tools. This work always takes place near live parts.
  • a switch fuse unit of the type described in the introduction can be removed, in which the fuse links can not be inserted directly into the switch rocker of the unit and pulled out again after insertion into a fuse plug. Since the rocker switch itself has no contacts and also has wing-shaped extensions that cover the stationary switch contacts in a contact-safe manner both in the switch-off and switch-on positions, the replacement of fuse links can be carried out safely here. However, this does not apply to converting such a switch fuse unit to a different nominal current value. To achieve a nominal current unmistakability, on the one hand, a shape and dimension adjustment of the cavity of the fuse plug is provided, which accommodates the fuse link.
  • the inner cross-section of the receiving opening of the rocker switch for the fuse plug and its outer cross-section, each perpendicular to the insertion direction of the fuse plug, are matched to one another by a special shape such that only the fuse plug can be inserted into a given switch fuse unit, the receiving cavity of which is connected to a fuse link with the permissible nominal current value here is tailored.
  • the permissible nominal current value is thus determined by the use of a specific rocker switch, which results from a change in the nominal current value should be exchanged.
  • Such an exchange is unacceptably expensive because the switchgear in which the switch fuse unit is installed would have to be switched off, so that unaffected circuits would also be shut down, which was not even necessary in the older fitting system described above.
  • the invention has for its object to develop a switch fuse unit of the aforementioned type so that a simple change of a voltage-sensitive switch fuse unit from one rated current level of a large variety of different rated current levels to another rated current level is possible without replacing the switch fuse unit.
  • the invention solves this problem in that the encodable locking device consists of a rated current lock which is detachably attached to the housing.
  • the rocker switch and in particular the insertion channel provided in it for the fuse plug can be designed such that it can hold fuse plugs for any nominal current value.
  • the coding is done solely with the help of the fuse plug and the nominal current lock.
  • the outer contour of the fuse plug that interacts with the nominal current lock is only dependent on the nominal current value, but not on the fuse system from which the fuse link in question originates.
  • the rated current lock is preferably arranged according to the invention on the outside of the housing so that it is in both Switch positions of the rocker switch is clearly visible.
  • the rated current lock can be marked with the standard colors corresponding to the rated current of the fuse link, which have been familiar to the specialist since 1906.
  • the rated current lock is releasably attached to the housing, for example with the help of a captive fastening bolt, so that it can be removed and installed in both switching positions of the rocker switch without the housing having to be disassembled or any live parts exposed. This means that the switch fuse unit according to the invention can be converted to a different nominal current value without any risk of contact. Such a changeover only makes sense when the rocker switch is in the off position.
  • the coded side of the fuse plug has a nominal current key which, when the fuse plug pushed into the rocker switch is pivoted into the switch-off position, engages in the nominal current lock with appropriate coding shortly before reaching the switch-off position.
  • the rated current lock can be designed in such a way that the rated current key can be pulled out of an opening of the rated current lock when the fuse plug is pulled out of the rocker switch in the off position.
  • an additional securing and / or locking of the rated current lock can be provided when pivoting the fuse plug of the rocker switch from the switch-off position in the direction of the switch-on position. It is also possible to insert the nominal current lock into a lock holder with a detent seat, which is firmly but releasably connected to the housing.
  • Another object of the invention is to provide a Ensure the switch rocker is locked in its off position if there is no safety plug in the slide channel of the rocker switch.
  • the invention solves this problem in that a locking device is provided in the housing which holds the empty rocker switch in the off position and which can be disengaged from its locking position by the fully inserted safety plug against the force of a biasing spring.
  • the locking device can only be released by the safety plug fully inserted into the rocker switch, it is prevented that the rocker switch can be moved out of the switched-off position without a safety plug. As a result, there is no risk of touching live parts.
  • the housing switch contacts directly engage with the end caps of the fuse links via small, almost linear contact surfaces.
  • the contact springs forming the housing switching contacts and the surfaces of the rocker switch on which the contact springs slide during the transition from the off position to the switch-on position, rapid activation is to be achieved shortly before the contact between the contact springs and the end caps is reached. Sparking cannot be completely suppressed and the erosion caused by this because of its low level End caps of the fuse links, which are sensitive to wall thickness, lead to premature wear, particularly in the case of frequent switching cycles.
  • the invention is based on the object that it is possible to use one of a large number of different, in particular also higher, nominal current levels and to use fuse links.
  • the invention solves this problem in that at least two switch contacts are provided on the fuse plug, which contact the two contact caps of the fuse link used and are in conductive engagement with the two housing switch contacts in the switched-on position of the rocker switch.
  • one of the two switch contacts is arranged in the fuse plug so as to be movable in the axial direction of the fuse link and is biased towards the other switch contact by a compression spring.
  • the switch contacts of the fuse plug can be designed such that they also encompass the ends of the fuse link at least from two, preferably from three sides, and thus also contact the outer surfaces of the contact caps. Compared to previously known systems that either only tap the current from the lateral surfaces (FR-OS 21 91 234) or only from the end faces, this results in both improved electrical contact and increased heat dissipation.
  • the fuse link can be inserted between the switch contacts from the fourth side left open by the switch contacts.
  • a special The advantage of the switch contacts provided on the fuse plug is that both the mechanical and the electrical switching work are performed between them and the housing switch contacts, so that the thin-walled, sensitive contact caps of the fuse links are fully protected against mechanical abrasion and spark erosion.
  • each of the housing switching contacts in the form of at least two switching lamellae which come into and out of engagement with the associated movable switching contact, also contributes to a long service life with, at the same time, favorable manufacturing costs. It is thereby achieved that only one of these two lamellae is loaded by the action of an arc, against which it can be largely protected by appropriate surface treatment or choice of material.
  • the second lamella on the other hand, only comes into or out of engagement with the movable switch contacts when arcing is excluded. This means that it is not under any electrical load and can ensure a low contact resistance in the switched-on position for continuous operation.
  • FIG. 1 is a perspective view of a switch fuse unit, the rocker switch is in the switch-on position
  • FIG. 2 shows a side view of the switch fuse unit from FIG. 1, the front housing wall being removed,
  • FIG. 3 is a view corresponding to FIG. 2, in which the rocker switch is in the off position
  • FIG. 4 is a plan view of the switch fuse unit of FIG. 3 in the direction of the arrows IV-IV, the front housing half being put back on,
  • FIG. 5 shows a top view of the rocker switch corresponding to FIG. 4,
  • FIG. 7 shows a section along line VII-VII in FIG. 6, with an additional bow spring
  • FIG. 8 is a plan view of a nominal stiom lock according to the invention.
  • Fig. 10 is a side view of the frame of a fuse plug according to the invention, i n the no switching contacts or others
  • FIG. 11 is a view of the frame of FIG. 10 in the direction of arrows XI-XI,
  • FIG. 12 is a sectional view taken along the line XII-XII of Fig. 10,
  • FIG. 13 is a sectional view taken along the line XIII-XIII of FIG. 10, 34 is a plan view of a lower spring switch contact as used in connection with a fuse plug according to FIGS. 10 to 13, FIG. 15 is a side view of the mounting position seen in the same direction as FIG.
  • FIG. 16 is a sectional view along the arrows
  • FIG. 17 shows a plan view corresponding to FIG. 14 of a lower pressure switch contact as used in connection with the spring switch contact from FIGS. 14 to 16,
  • FIG. 18 shows a side corresponding to FIG. 15 of the pressure switch contact from Fig.
  • FIG. 19 is a plan view from below of an upper spring switch contact, as used in connection with the fuse plug according to FIGS. 10 to 13
  • FIG. 20 is a longitudinal sectional view seen in the installed position in the same direction as FIG. 10 the line XX-XX from FIG. 19
  • FIG. 21 shows a view of the upper spring switch contact in the direction of the line XXI-XXI from FIG. 19
  • FIG. 22 shows a plan view corresponding to FIG. 19 of an upper pressure switch contact as it is in connection with 19 to 21 is used
  • FIG. 23 shows a side view corresponding to FIG.
  • FIG. 24 is a sectional view along the line XXIV-XXIV from FIG. 23, the nominal current lock also being engaged with the Key flank of the fuse switch is reproduced
  • Fig. 25 is a sectional view along the line
  • FIG. 26 is a side view corresponding to FIG. 23 of a complete fuse plug with a fuse link with a nominal current value of 63A,
  • FIG. 27 shows a sectional view corresponding to FIG. 24 along the line XXVII-XXVII from FIGS. 26 and
  • Fig. 28 is a sectional view corresponding to Fig. 25, taken along the line XXVIII-XXVIII
  • 29 is a simplified view, similar to the view in FIG. 2, of a circuit breaker unit with a further embodiment of a rated current lock,
  • FIG. 29 is a plan view of FIG. 29,
  • FIG. 31 is a sectional view according to section line XXXI-XXXI in FIG. 29,
  • FIG. 32 is a side view of the fuse plug in FIG. 29,
  • FIG. 33 is a bottom view of the fuse plug in FIG. 32 in the direction of arrow XXXIII,
  • FIG. 35 is a view of a holder for the rated current lock shown in FIG. 29 in the direction of arrow XXXV in FIG. 36,
  • FIG. 39 is a plan view of the rated current lock according to FIG. 37, 40 shows a cross section through the lock holder according to FIGS. 35 and 36 and the nominal current lock used therein according to FIGS. 37 to 39 in a cross section along the section line XL-XL in FIGS. 40 and
  • Fig. 41 is a view of the rated current lock in Fig. 39 in the direction of arrow IXL.
  • circuit breaker unit 1 shows a circuit breaker unit 1 according to the invention which is coded to a nominal current value of 25A. It has a housing which is composed of two housing halves 2, 3 which are approximately mirror-symmetrical to one another and which are connected with the aid of conventional connecting elements, e.g. Screws or rivets 4 are interconnected.
  • connection opening 6 which allows the introduction of an electrical conductor to which the switch fuse unit 1 is to be connected.
  • connection opening 8 In the vertical end wall 7 opposite the end wall 5 (see FIGS. 2 and 3) there is a corresponding connection opening 8 for a second conductor of this type.
  • the wall of the housing located at the top in FIG. 1 is stepped toward the end walls 5 and 7.
  • the upper housing wall has an opening 11, from which an actuating handle 12 of a rocker switch 13 protrudes, 1, essentially only one web wall 14 can be seen, which covers the housing opening 11 in a contact-safe manner in the switch-on position shown.
  • the web wall 14 has a viewing opening 15 for an optical signal transmitter, not shown.
  • a recess 16 can be seen which receives the end of a handle part 19 of a safety plug 18 which is inserted into the rocker switch 13 from above.
  • the recess 16 and the handle part 19 are so coordinated in their shape and dimensions that, when the securing plug 18 is fully inserted, the outer surfaces of the handle part 19 are flush with those of the actuating handle 12.
  • the actuating handle 12 of the rocker switch 13 has an opening 20 in its area protruding from the opening 11 of the housing in both switching positions, to which an opening 21 in the handle part 19 of the securing plug 18 connects.
  • a shift lock not shown, can be inserted, which can be locked if necessary, so that actuation of the rocker switch 13 can only be carried out by persons who are authorized to do so.
  • the upper housing wall has through openings 24, 25, of which only the opening 24 located in the shoulder surface 22 can be seen in FIG. 1.
  • a rated current lock 30 is inserted from the outside into a corresponding bearing bed 31 (see FIGS. 2 and 3) and with the help an captive fastening bolt 32 (Fig. 2, 3, 8 and 9) attached, of which in Fig. 1 only the actuating head
  • the L-shaped base part of the nominal current lock 30 and the shape and depth of the bearing bed 31 are coordinated with one another in such a way that the outer surfaces of the nominal current lock 30 are flush with the shoulder surface 22 and the outer surface of the end wall 28.
  • the rated current lock 30 has an encodable part projecting approximately horizontally into the opening 11, of which a crenellated projection only in the left area in FIG. 1 due to the special coding shown there at 25A
  • the crenellated protrusion 34 of the rated current lock 30 projects through the opening 21 into the path of movement that the safety plug 18 has to pass through when it is pushed into or out of the rocker switch 13, and acts with a complementary key flank 193 (Fig. 10, 11) of the fuse plug 18 together so that only one fuse plug can be inserted, which is designed to hold a fuse link, which has the nominal current value specified by the nominal current lock 30.
  • the bottom wall 37 of the housing in FIG. 1 has in its outer surface a dovetail-like groove 39, the front flank of which is delimited by a quick fastening latch 40, the actuating bracket 41 of which protrudes forwardly from the end wall 5 of the housing.
  • the quick fastening latch 40 is guided in a cavity 42 of the bottom wall 37 of the housing in the direction of the double arrow 43 and is biased by a compression spring 44 into its right end position in FIGS. 2 and 3, in which narrows the cross section of the groove 39.
  • the switch fuse unit can e.g. can be easily mounted on standard hat profiles according to EN 50 022.
  • switch fuse unit 1 side views of the switch fuse unit 1 are shown in the switched-on position and the switch-off position, the front housing half 3 being removed in FIG. 1, but all the parts located inside the switch fuse unit 1 are left in their place.
  • the switch fuse unit 1 and all of its parts, in particular the rocker switch 13 and the fuse plug 18, are constructed and arranged essentially symmetrically with respect to the plane running through the joint of the two housing halves 2 and 3.
  • each of the housing halves made of an insulating material, for example plastic has in its interior a series of partitions, such as partitions 46 and 47, which enclose cavities and are provided with grooves or openings, to receive and hold the individual parts of the switch fuse unit 1 without screws.
  • intermediate walls extend as far as the parting plane between the two housing halves 2 and 3.
  • Corresponding intermediate walls are present in the mirror half-symmetrical arrangement in the same way in the housing half 3 omitted in FIGS. 2 and 3, adjoin the partition walls of the housing half 2 shown when the housing is assembled and complement each other to form continuous dividing walls dividing the interior of the housing.
  • connection openings 6 and 8 made of metal frame clamps 48, 49 are arranged, which comprise the axially immovable clamping screws 26, 27, which are engaged with threads in the upper Walls 50, 51 of the clamping frames 54, 55 are provided.
  • the clamping screws 26, 27, By turning the clamping screws 26, 27, the non-rotatably arranged clamping frames 54, 55 can thus be moved up and down in the axial direction. They press their lower clamping jaws 56, 57 into the frame tensioning clamps 48, 49 inserted conductors against busbars 58, 59 or release the conductors from them.
  • the busbars 58, 59 which are connected in one piece to the associated housing switch contact 60 or 61, are supported by pressure plates 62, 63, which in turn are in corresponding grooves or recesses in the intermediate walls 46, 47 are stored.
  • Each of the two frame clamps 48, 49 can serve both as an input and as an output connection.
  • the bottom wall 37 of the housing has a recess 65 on the side opposite the cavity 42, into which a switching state transmitter, flat plug or lines can be inserted through an opening 66 in the end wall 7.
  • the rocker switch 13 is pivotally mounted about bearing journal 67 and is shown in FIG. 2 in the switched-on position, in which the housing switching contacts 60, 61 via lower and upper switching contacts 70, 71 of the fuse plug 18 and one between the lower and upper ones Switch contacts 70, 71 used fuse link 75 are in electrically conductive connection with each other.
  • the housing switching contacts 60, 61 each comprise two U-shaped switching lamellae 277 (FIGS. 25 and 28), which grip the rocker switch 13 like pliers with their legs and in the off position and during the transition from one switching position to the other on axial outer surfaces 78, 79 the rocker switch 13 rest or slide along.
  • a likewise U-shaped bow spring 81 and 82 or 83 and 84 is pushed onto each of the U-shaped switching plates 277, the legs of which extend parallel to the legs of the switching plate and enclose them from the outside.
  • the legs of the bow springs 81 to 84 are just as wide and somewhat longer than the legs of the switching plates 277, so that the latter are completely covered in FIGS. 2 and 3.
  • the underlying switch blades 277 of each housing switch contact 60, 61 are of different lengths, so that they come into or out of engagement with the switch contacts 70, 71 of the fuse plug 18 one after the other.
  • a pawl 87 serving as a locking device is pivoted at one end about an axis parallel to the pivot axis of the rocker switch 13.
  • the pawl 87 is biased toward the rocker switch 13 by a biasing spring 88 and lies with its free end on the lower region of a convex outer surface 90 (see also FIG. 6) of the rocker switch 13.
  • This convex outer surface 90 extends concentrically to the pivot axis 112 of the rocker switch 13.
  • the pawl 87 prevents the rocker switch 13 from being moved out of the switched-off position without the safety plug 18 being inserted. If a safety plug 18 is inserted into the rocker switch 13 in the switched-off position, the rounded lower end 93 of the safety plug 18 lifts the pawl so far that it disengages from the shoulder-shaped shoulder 91 and is circular in shape on the concentric to the pivot axis 112 convex outer surface 90 comes to rest against which it can easily run along when the rocker switch 13 is turned into the switch-on position. When the safety plug 18 is inserted, the blocking effect is the blocking jack 87 canceled. In addition, the pawl 87 is pressed so strongly by the force of the bias spring 88 in the off position on the safety plug 18 that it is largely secured against unintentional sliding out of the rocker switch 13.
  • FIG. 2 also shows a contact protection cover 94 of a distributor, with respect to which the switch protection unit 1 is arranged such that the actuating head 33 of the
  • FIG. 4 shows a top view of the switch protection unit 1 in the direction of the arrows IV-IV from FIG. 3, but the front housing half 3 in FIG. 3 is reattached.
  • the rocker switch 13 is in the switch-off position and thus provides a view of the right part of the housing opening 11 in FIG. 4, through which the upper edges 97, 98 of the two side walls 95, 96 of the rocker switch and the securing plug 18 seen in plan view can be seen are.
  • the grip part 19 of the safety stopper 18 is received in a form-fitting manner in the recess 16 of the actuating handle 12.
  • the upper wall 102 of the fuse plug visible in the insertion opening 100 of the rocker switch 13 has an opening 103 through which the indicator 105 of the fuse link 75 arranged in the fuse plug can be observed.
  • FIG. 5 shows the rocker switch in a plan view corresponding to FIG. 4, but without the housing of the switch fuse unit 1 and without inserted fuse plug 18, while FIG. 6 shows a section through the rocker switch 13 along the line VI-VI from FIG. 5, whose viewing direction corresponds to that of FIGS. 2 and 3.
  • an insertion channel 113 for the safety plug 18 extends perpendicular to the pivot axis 112 through the entire rocker switch 13, this insertion channel having a uniform cross section over its entire length, as is shown by that of FIG 5 removable form of the insertion opening 100 is given.
  • the insertion channel is limited by two parallel guide rails 115, 116, which are arranged on both sides of the pivot axis 112 and each have a right-angled U-shaped inner profile in the plan view of FIG. 5.
  • the open ends of the two U-profiles face each other and the connector formed by the inner bottom surfaces 118, 119
  • the webs of the legs of the U-profiles run parallel to the pivot axis 112.
  • the longer guide rail 115 extends from the outer, i.e. End of the actuating handle 12 facing away from the pivot axis 112 along a chord of the circle and intersects its circumferential line twice, the bottom surface 118 of the U-profile being at a shortest distance from the pivot axis 112, which is approximately equal to half the radius of the circle.
  • the bottom wall 121 of the longer guide rail 115 has an outer surface 122 parallel to the inner bottom surface 118, so that it has a longitudinal section here in the form of an elongated rectangle.
  • the outer surface 122 extends away from the inner bottom surface 118 at an acute angle, so that here the longitudinal section of the bottom wall 121 widens in a wedge shape toward the end facing away from the actuating handle 12.
  • Bottom wall 121 has a continuous opening 123, which is part of the opening 20 already mentioned for a shift lock to be attached if desired forms.
  • ribs 124, 125 project inwards, which in the plan view of FIG. 5 have a rectangular cross section and whose mutually facing surfaces are each perpendicular to the inner bottom surface 118 of the guide rail 115 and the legs of the Form U-profiles of this guide rail 115.
  • Fig. 6 shows that the two ribs 124, 125, which otherwise extend over the entire length of the guide rail 115, at the end of the guide rail belonging to the actuating handle 12 are somewhat shorter than the bottom wall 121 and thus form lower-lying stop shoulders 127 which a projection 128 of the handle portion 19 (see Fig. 10) of the locking plug 18 comes to rest in the fully inserted state.
  • the other guide rail 116 is significantly shorter and runs along a circular chord without projecting beyond its intersection points with the circumferential line of the circle, the shortest distance between the inner bottom surface 119 of this guide rail and the pivot axis 112 being approximately three quarters of the circle radius.
  • the outer surface 90 of the bottom wall 130 of this shorter guide rail 116 runs along the circumferential line of the circle, so that the bottom wall 130 in FIG. 6 has a longitudinal section approximately in the form of a circular segment, but which is perpendicular to the inner bottom surface 119 on the side facing the insertion opening ⁇ 00 is cut off, which does not reach the circumference of the circle on this side.
  • From the two axial edges of the bottom wall 130 also protrude inwardly two ribs 131, 132, which have a rectangular cross section in the plan view of FIG. 5, and whose mutually facing surfaces are each perpendicular to the inner bottom surface 119 and the legs of the U -Form profiles of the guide rail 116.
  • Fig. 6 shows that the two ribs 131, 132 project beyond the cut end of the bottom wall 130 upwards, ie in the direction of the actuating handle 12 or the insertion opening 100 and even extend beyond the circumferential line of the circle.
  • the axial boundaries of the insertion channel 113 are formed by side wall elements which are congruent for the two side walls 95, 96 of the rocker switch 13 which are exactly one behind the other in FIGS. 2 and 3. Therefore, only the side wall elements of the front side wall 96 can be seen in these figures, while FIG. 6 shows the elements of the rear side wall 95 from the inside of the insertion channel 113.
  • these are the annular hubs 134, which concentrically enclose the receiving openings 139 for the bearing journals 67 and, for reasons of stability, have a particularly large wall thickness in the axial direction (see also FIG.
  • This side wall element 138 has an outwardly extending section 140, one side edge of which is aligned with the outer surface 122 of the bottom wall 121 of the guide rail 115 and the other side edge 141 of which extends parallel to the first side edge along a radial beam running through the pivot axis 112.
  • the two sections 140 of the side wall elements 138 which each have a thickened edge bead 142 at their outer ends, form the side walls of the actuating handle 12 and, together with the adjacent end of the guide rail 115 with which they are connected in one piece, enclose the recess 16 in a U-shape for receiving the grip part 19 of the securing plug 18.
  • each side wall element 138 has a projecting shoulder 144 which is concentric to the pivot axis 112 in the form of a circular arc and, when assembled, engages under a correspondingly shaped guide shoulder 145 on the inside of the housing wall (see also 2 and 3).
  • the inner surfaces of the side wall elements 134, 135, 136, 137 and 138 facing the insertion channel 113 have a distance in the axial direction which is at least equal to the axial distance between the outer surfaces 78, 79 of the guide rails 115, 116 on which the ends of the switching lamellae 277 of the housing switching contacts 60, 61 rest in the off position and on which they slide along during the transition to the on position.
  • This makes it possible to insert safety plugs 18 into the insertion channel 113, the switching contacts 70, 71 of which project so far in the axial direction that their contact surfaces 230, 231, 238, 239, 253, 254, 260, 261 (FIGS.
  • the side wall elements 138 have concave indentations 149 which extend in the direction of the insertion channel 113 and which have a cross-section in the form of a segment of a circle in the plan view of FIG. 5. They allow the insertion of securing plugs 18 into which securing inserts 75 are inserted, which protrude in the direction of the pivot axis 112.
  • the inside of the thickened ends of the spokes 136 is also concave and in FIG. 5 continues the circular arc contour of the indentations 149, albeit in a much lower level.
  • FIGS. 5 and 6 also show the already mentioned axial web wall 14, which protrudes outwards like a roof from the outer surface 122 of the bottom wall 121 of the longer guide rail 115. Their line of contact with the outer surface 122 lies next to the through opening 123 of the bottom wall 121. From there, the web wall 14 in the longitudinal section of FIG. 5 follows approximately the circular arc which is predetermined by the shoulders 144 on the outer sides of the side walls 95, 96 to to a point whose connecting line is perpendicular to the pivot axis 112 on the outer surface 122.
  • Web wall 14 and the outer surface 122 of the guide rail 115 formed cavity.
  • Such a side wall element is not present in the region of the front side wall 96 shown in FIGS. 2 and 3, so that the cavity is easily accessible from this side.
  • An optical signal generator and electronic circuitry can be inserted into it, which can then be observed through the viewing opening 15.
  • the longitudinal central axis 152 of the insertion channel 113 does not intersect the pivot axis 112 but rather runs past it in the manner of an arch chord.
  • the securing plugs 18 are designed in such a way that the longitudinal axis 153 of an inserted securing insert 75 extends even more eccentrically in the inserted state, as is indicated in FIG. 6 by the dash-dotted line.
  • This eccentric arrangement of the fuse links advantageously means that the actuating handle 12 can be arranged very close to the center of the insertion channel 113 without covering the indicator 105 of the fuse link in the assembled state, and that the live housing switch contacts 60, 61 are larger Distance to the housing opening 11 or the insertion opening 100 can be arranged than would be possible with the same angular distance between the switch-off position and the switch-on position if the longitudinal axis 153 of the fuse links 75 would intersect the pivot axis 112 in the assembled state.
  • This measure thus contributes to an increase in the safety of contact according to the invention switch fuse unit.
  • the eccentric arrangement of the longitudinal axis of the fuse links has the advantage that more space is available for the bearing journal 67 and the hub 134, so that these parts can be dimensioned larger in order to achieve greater dimensional stability.
  • the guide rail 115 has at its end opposite the actuating handle 12 on its axial outer surfaces 78 each opposite, strip-shaped ramp surfaces 154 which are approximately concentric to the pivot axis 112 and diverge in the axial direction so that they have a smaller distance at their end adjacent to the outer surface 122 than at the end which is adjacent to the insertion channel 113.
  • the inwardly assembled leg ends 156 of the further bow spring 85 rest on the ramp surfaces 154 in the vicinity of the outer surface 122 in the switched-off position. If the rocker switch 13 is moved out of this position in the direction of the switch-on position, the leg ends 156 run along the ramp surfaces 154, as a result of which the bow spring 85 is spread and tensioned. A corresponding counterforce must be applied to the force exerted by the bow spring, which reaches its maximum shortly before the switch-on position is reached when the leg ends 156 of the bow spring 85 rest on the apexes 158 of the ramp surfaces 154.
  • the relative position of the leg ends 156 of the bow spring 85 and the apex 158 is selected according to the invention so that the acceleration effect just described occurs precisely at the times when the respectively longer switching fins 277 of the housing switching contacts 60, 61 with the switching contacts 70, 71 of the fuse plug 18 engage or disengage so that the phase of the switching operations critical for sparking or arcing is completed as quickly as possible.
  • the rated current lock 30 is shown again on a larger scale.
  • a plate 162 protrudes approximately at right angles in its basic shape, which forms the codable part of the nominal current lock 30 and therefore has a different plan for each nominal current value provided.
  • four coding levels 163 are shown, of which the front three each comprise six coding segments 164, while the rearmost coding level has only four such segments for reasons of stability.
  • the rated current lock has on each side a right-angled projection 166 which projects beyond the outer edge of the plate 162. With these projections 166, the rated current lock 30 is supported in a recess which is located on the inner surface of the housing 11, which delimits the opening 11 of the housing End wall 28 is provided (see Fig. 1). In conjunction with the bearing bed 31 and the L-shaped shape of the foot part of the rated current lock 30, this ensures an absolutely immovable fit of the rated current lock. This ensures that the safety plug 18 having the key flank 193 that matches the respective rated current lock can be inserted easily and without jamming.
  • 10 to 13 the frame of a fuse plug 18 coded to 25A is shown. 10 corresponds to that of FIGS. 2, 3 and 6.
  • the safety plug 18 which is also designed as a one-piece body and can be produced, for example, by injection molding from plastic, comprises two elongated, web-like, end walls 168, 169 which run parallel to one another and which are connected to one another by two walls which are only about half as long, likewise parallel to one another and run at right angles to the end walls, namely the upper wall 102 and a bottom wall 171.
  • These four walls frame-like a receiving space 173 for the lower and upper switching contacts 70, 71 and a fuse insert 75 which can be held between them.
  • This receiving space 173 faces the sides of the fuse plug 18, which in the inserted state covers the side walls 95, 96 of the rocker switch 13 be open. 10, it thus represents a breakthrough through the body of the safety plug 18.
  • the upper wall 102 is connected on its outside to the handle part 19 of the safety plug, the extends in the direction of the longitudinal axis 177 of the safety stopper 18.
  • this handle part 19 encloses an opening 21 which, together with the opening 20 of the actuating handle 12, can serve to accommodate a shift lock.
  • the grip part 19 has a projection 128 which extends approximately perpendicular to the longitudinal axis 177, the lower surface of which, in the inserted state, bears against the stop shoulders 127 of the rocker switch 13, which thus define the fully inserted state of the securing plug.
  • the top wall 102 laterally next to the handle part 19 has a central opening 103 passing through it in the direction of the longitudinal axis 177, which extends to the end wall 168 to the edge of the top wall 102 and is also open to the opening 21.
  • a groove 181 extending perpendicular to the longitudinal axis 177, into which a transparent plate 180 can be inserted from the open side 182 in the direction of the arrow, which covers the opening 103 and still allows the indicator located underneath to be observed 105 of the fuse link 75 allows.
  • the upper wall 102 On its inner surface facing the receiving space 173, the upper wall 102 has two shoulders 183, 184 which project inward at approximately right angles and which extend in the corner regions with the end walls 168, 169 over the entire width of the upper wall 102. These two shoulders 183, 184 thus enclose between them an inwardly open, rectangular U-shaped groove 185, in the bottom of which a circular recess 186 concentric with the through opening 103 is provided hen, which goes up into the through opening 180.
  • the groove 185 and the recess 103 serve to support and hold a compression spring
  • the inner surfaces of the end walls 168, 169 have inwardly directed projections 187, 188 which, as can be seen in FIG. 12, have a rectangular cross section and are approximately in the center of the end walls 168, 169 extend over a third of the width of these walls.
  • each of these projections 187, 188 merges into a bar 190, 191 which projects inwards to the same extent, but which extends over the entire width of the associated end wall 168 and 169, respectively.
  • the projections 187, 188 serve as guides for the parts of the upper switching contact 71 to be used here, which is designed to be movable in the direction of the longitudinal axis 177. The length of this movement towards the center of the receiving space 173 is limited by the strips 190, 191 serving as stops.
  • the end wall 168 has a substantially greater thickness than the other walls of the fuse plug 18.
  • the outside of this end wall 168 serves as a key flank 193, which with a nominal current lock 30 attached to the housing when the fuse plug 18 is inserted into the Switch rocker 13 cooperates and the contour of which is formed in the sectional planes perpendicular to the longitudinal axis 177 complementary to the front edge 165 of the associated coded current lock 30.
  • the thickness of the end wall 168 must be chosen to be more or less large.
  • the width of the end walls 168, 169 and the bottom wall 171 is significantly smaller than that of the upper wall 102. This is because the width of the two end walls 168, 169 in particular is matched to the slightly smaller clear width of the U-shaped inner profiles of the guide rails 115, 116, in which the end walls 168, 169 slide along when the securing plug 18 is inserted into the rocker switch 13 or are received in the inserted state.
  • the greater width of the top wall 102 serves to push in Condition also those parts of the insertion opening
  • Pivot axis 112 have a slightly larger clear width.
  • the end wall 168 has two projections 198, 199 projecting beyond its width, which are offset so far inward from the key flank 193 that their outer surfaces when the safety plug 18 is inserted into the rocker switch 13 on the surfaces slide along the ribs 124, 125 facing the pivot axis 112 (see FIG. 5). Since this outer surface of the projections 198, 199 is flush with the outer surface of the handle part 19 on the left in FIG. 10, which, as shown in FIG. 11, also projects in both directions over the width of the end wall 168, overall there is very good guidance and holding of the safety plug 18 in the rocker switch 13.
  • the end walls 168, 169 have on their inner surfaces two projections 202, 203 which extend over the entire width of the end walls 168, 169 and which protrude into the receiving space 173, which are opposite one another and have a distance from the inner surface of the bottom wall 171 which is approximately is equal to a quarter of the total length of the receiving space 173 in the direction of the longitudinal axis 177.
  • Both projections 202, 203 have an inclined ramp surface on their side facing away from the bottom wall 171, with which they continuously merge into the inner surface of the end walls 168 and 169, respectively.
  • the projection 203 located on the end wall 169 has on its underside a projection that is perpendicular to the inner surface of the end wall 169 jumping shoulder, under which engages part of the lower switching contact 70 to be used here.
  • the opposite projection 203 merges on its underside into a transversely extending strip 204 which extends over the entire width of the inner surface of the end wall 168 and which, as shown in particular in FIG. 11, extends somewhat over the width of the end wall 168 on both sides, but not so far protrudes like the projections 198, 199 described above.
  • This strip 204 also serves to hold the lower switching contact 70 to be used here and supports with its projecting parts the contact surfaces 230, 231 (FIGS. 14, 15) of this lower switching contact 70, which in in the switched-on position are engaged with the switch blades of the associated housing switch contact 60.
  • FIGS. 14 to 16 show the spring switch contact 210 and FIGS. 17 and 18 the pressure switch contact 211 of a lower switch contact 70, while FIGS. 19 to 21 show a spring switch contact 212 and FIG. 22 a pressure switch contact 213 of an upper switch contact 71.
  • the spring contact 210 has a rectangular base plate part 215 with a central through opening 216. Symmetrical to the center of its longer edges, two mutually opposite tab parts 217, 218 are attached to the base plate part 215, initially under an angle of about 45 ° against the plane defined by the base plate part 215 in the same direction and then both are bent an additional 45 ° upwards, so that the spring switch contact 210 in the view shown in FIG. 15, the direction of which is that of 2, 3, 6 and 10 corresponds, has an approximately U-shaped cross section.
  • the sections 220, 221 of the tab parts 217, 218 rising at an angle of 45 ° have a smaller width than the longitudinal edges of the base plate part 215 to which they connect.
  • the vertical sections 222, 223 are then made wider again and in particular the vertical section 222 of the tab part 217 has a width which is almost twice as large as that of the base plate part 215 in this direction parallel to the pivot axis 112 in the installed state.
  • the vertical section 222 has two notches 225, 226, in the area of which it is cranked toward the opposite vertical section 223 of the other tab part 218, as can be seen in particular from FIG. 15.
  • the ends 228, 229 of the uppermost region of the vertical section 222, which are offset by the notches 225, 226, are bent at a right angle such that they extend away from the opposite tab part 218. They thus form two approximately square contact surfaces 230, 231 which, when assembled and in the switched-on position, engage the upper switching plate 277 of the lower housing switching contact 60 (see FIG. 2).
  • 17 and 18 is essentially reproduced plate-shaped pressure switch contact 211, which also has a flat bottom plate part 233 with a central opening 234.
  • the longitudinal edge of the base plate part 233 which is on the left in FIGS. 17 and 18, adjoins at an angle of approx. 15 ° rising ramp part 235, which is slightly wider than the adjoining longitudinal edge of the base plate part 233.
  • the ramp part 235 has a rectangular recess 236 which projects from its outer edge to the base plate part 233.
  • the outer surfaces of the ramp part 235 which run perpendicular to the longitudinal axis of the base plate part 233, likewise form contact surfaces 238, 239 which, when assembled and in the switched-on position, engage the lower switching plate 277 of the lower housing switching contact 70.
  • the spring switch contact 210 is first placed on the inner surface of the bottom wall 171 in such a way that its base plate part 215 lies flat against the inner surface of the bottom wall 171 and the pin 176 projects through the central opening 216.
  • the upper edge of the vertical section 223 is below the right-angled shoulder of the projection 203 and the bent ends 228, 229 of the upper region of the vertical section 222 engage from the outside the end faces of the strip 204, on which they are supported. Because ledge 204 projects less than the width of end wall 168 than projections 198, 199 (FIG.
  • outer surfaces 230, 231 of bent ends 228, 229 each lie approximately in the same plane as the outer surfaces of the projections 198, 199.
  • the pin 176 In the spring used Switch contact 210 is then inserted from above the pressure switch contact 211 so that it rests with its flat base plate part 233 with a good surface contact on the base plate part 215 of the spring switch contact 210, the pin 176 also protruding through its central opening 234. With its recess 236, the pressure switch contact 211 encloses the section of the tab part 217 of the spring switch contact 210 that rises at an angle of 45 °.
  • the contact surfaces 238, 239 of the pressure switch contact 211 stand outward in the direction of the pivot axis 112 from the receiving space 173 of the safety plug 18 in front of the contact surfaces 230, 231 of the spring switch contact 210.
  • a projection 240 protrudes in the plane of the base plate part at a right angle, with its inner edge 241 in the assembled state abuts the edge 242 of the area of the tab part 218 of the spring switch contact 210 rising at an angle of 45 °.
  • the spring switch contact 212 shown in FIGS. 19 to 21 also has a flat base plate part 243, which is essentially circular and has a central opening 244, which is essential has a larger diameter than the central openings 216 and 234 of the parts of the lower switching contact.
  • the base plate part 243 of the upper spring contact 212 has tabs 246, 247 and 248 bent at right angles, of which the latter, which is diametrically opposite the tab 246, carries a wing section 249, 250 on both sides.
  • These two wing sections 249, 250 are first angled against the plane of the tab 248 at an angle of approximately 60 ° to the center of the spring switch contact 212 and are bent back at their free ends by approximately 60 ° to the outside. These free ends each carry a contact section 251, 252, which protrudes further downward from the base plate part 243.
  • the mutually parallel outer surfaces of the contact sections 251, 252 form contact surfaces 253, 254, via which the upper switching contact 71 of the fuse plug 18 engages in the assembled state and in the switched-on position with the lower switching plate 277 of the upper housing switching contact 61 (see FIG. 2).
  • the pressure switch contact 213 of the upper switch contact 71 is a substantially rectangular flat plate with a central opening 255 and three rectangular recesses 256, 257, 258, each of which is arranged approximately in the middle of one of its outer edges. These cutouts correspond to the downwardly bent tabs 246, 247 and 248 of the spring switch contact 212, into which the pressure switch contact 213 is inserted from below in the assembled state such that the downwardly bent tabs 246, 247, 248 through these cutouts 256, 257, 258 can protrude down.
  • the two opposite recesses 256, 258 receive the projections 187, 188 on the inner surfaces of the web walls 168, 169 of the fuse plug, whereby the two parts 212, 213 of the upper switching contact 71 move in the direction of the longitudinal axis 177 of the fuse plug (see Fig. 10) are performed.
  • the two central openings 244 and 255 are aligned with one another and with the opening 103 in the upper wall 102 of the fuse plug, and thus enable the indicator 105 of a fuse link 75 inserted into the fuse plug 18 to be observed.
  • the shape and in particular the dimensions of the parts of the lower and upper switch contacts 70, 71 of the fuse plug 18 just described are not the same for all fuse plugs but vary in terms of their internal dimensions depending on them, to which nominal current value the fuse plug in question is coded and to which fuse system the fuse link 75 with this nominal current value belongs, which is to be inserted into the fuse plug 18.
  • the fuse links 75 are inserted into the fuse plug 18 in such a way that the end faces of their metallic end caps 264, 265 rest in flat contact on the inside of the pressure switch contacts 211, 213.
  • the tab parts 217, 218 of the lower spring switch contact 210 and the angled tabs 246, 247 and 248 of the upper spring switch contact 212 cover the lateral surfaces of the contact caps 264, 265 and are in electrically conductive contact with them. Because of the different diameters of the fuse links 75 designed for different nominal current values, it is therefore particularly necessary to use the distances D 1 and D 2 of the tab parts 222, 223 and 246, 248 of the spring switch contacts 210, 212 shown diametrically opposite one another in FIGS. 15 and 20 to adapt to the respective fuse link 75 provided. In individual cases, it may also be necessary to adapt the pressure switch contacts 211, 213 in terms of shape or dimension.
  • all these parts are adapted such that the contact surfaces 230, 231 of the spring switch contact 210, the contact surfaces 238, 239 of the pressure switch contact 211, the contact surfaces 253, 254 of the spring switch contact 212 and the contact surfaces 260, 261 of the pressure switch contact 213 in the inserted state of the Fuse plugs 18 are always in the same position, since they engage the switch blades 277 of the housing switch contacts 60, 61, which are independent of the respective nominal current value and always the same have geometric configuration.
  • This compression spring 270 biases the two parts 212, 213 of the upper switching contact 71 downward against the strips 190, 191, which serve as stops for the plate-shaped pressure switching contact 213, which, moreover, with the aid of its diametrically opposite recesses 256, 258 on the projections 187 , 188 of the inner surfaces of the end walls 168, 169 is guided.
  • each fuse plug 18 can also be realized if each of these switching contacts is not produced from two separate parts but in one piece.
  • a two-piece design is preferred, however, because it makes it possible to produce the two pressure switch contacts 211, 213 each from a material with the highest possible electrical conductivity, and none of which have elasticity special requirements must be made.
  • the two spring switch contacts 210, 212 can be made of a metal with a particularly high spring elasticity.
  • this configuration of the switch contacts 70, 71 of the fuse plug results in a large-area contact with the contact caps 264, 265 of the fuse links 75 not only on the end faces but also on the lateral surfaces, which advantageously not only has a low electrical contact resistance but also a good one Heat dissipation can be achieved.
  • the compression spring 270 is arranged approximately both concentrically with the opening 103 in the upper wall 102 of the fuse plug and with the central openings 244, 255 in the parts 212, 213 of the upper switching contact 71, so that they provide a clear view of the indicator 105 of the respective fuse link 75 is not hindered. Furthermore, this compression spring 270 not only ensures good surface contact between the pressure switch contacts 211, 213 and the end faces of the fuse links, but also prevents the contact caps 264, 265 from breaking off when the fuse link 75 is critically disconnected. This reliably blows out the fuse link and the connection this prevents thermal damage.
  • the projection 272 is omitted in the fuse plug 18 provided for this fuse link, so that the vertical section 222 is located directly on the inner surface the end wall 168 can rest and thus have a greater distance from the opposite tab part 218, for which an additional recess 274 is also provided in the end wall 169, so as to create the total space required for inserting the securing insert provided here.
  • the fuse inserts 75 are inserted into a fuse plug from the front in Figs. in the viewing direction of the viewer, in such a way that the upper contact cap 265 is inserted between the tabs 246, 248, where it snaps into place in the manner just described.
  • the tab 247 prevents the end cap 265 from slipping backwards.
  • both parts of the upper switching contact 70 are displaced against the force of the compression spring 270 towards the upper wall 102 of the fuse plug 18 until the end face of the lower contact cap 264 can slide inwards over the upper surface of the pressure switching contact 211, the vertical sections 222 , 223 of the lower spring switch contact 210 are somewhat spread. Sliding out to the rear is prevented here by the projection 175 described in connection with FIG. 10.
  • the fuse insert 75 thus inserted is then held securely by the force of the compression spring 270 with a predetermined contact pressure between the pressure switching contacts 211, 213, the spring switching contacts 210, 212 assisting.
  • FIGS. 25 and 28 show the interaction of one of the U-shaped upper switching plates 277, which is in the switch-on position shown with its ends on the contact surfaces 260, 261 of the upper pressure switch contact 213.
  • the switching lamellae 277 of the housing switching contacts are also made of a metal with the highest possible electrical conductivity, the somewhat lower spring properties of which are compensated for by the use of the U-shaped bow springs which are also visible in FIGS. 25 and 28, of which the bow spring 84 is shown here.
  • the legs of the bow spring 84 have the same length as the legs of the switching plate 277, and their front, inwardly bent ends rest on the ends of the switching plate.
  • the other, in connection with FIGS. 2 and 3 mentioned switching slats 277 and bow springs 81, 82, 83 are constructed in a corresponding manner and arranged relative to each other.
  • the guide rail 116 of the rocker switch 13 is omitted, which is actually shown as a cut part in the area enclosed by the switch plate 277 in a U-shaped manner and delimited on the left by the end wall 169 of the securing plug 18 shown in section ought to.
  • the switch fuse unit according to the invention can also be designed with multiple poles and that the housing formed by the two housing halves 2, 3 can be designed in such a way that expanding components such as e.g. a switchable neutral conductor, auxiliary switch, etc. can be flanged.
  • a switch fuse unit is thus created by the invention, in which the blocking device required to achieve a nominal current unmistakability, namely the nominal current lock 30 is independent of the tolerance values and designs of the fuse links 75 used in each case.
  • the exchange of the rated current lock 30 attached to the outside of the housing takes place with complete protection against contact.
  • the rated current lock is clearly visible not only in the off position but also in the on position of the rocker switch 13 and can therefore be checked with the fuse link 75 without switching off and without removing the fuse plug 18.
  • the shape and color of the rated current lock 30 are matched to the respective rated current levels.
  • the fuse plug 18, which corresponds to the nominal current lock 30, bears the same characteristic colors and the same nominal current outputs for the respective nominal current stage as the nominal current lock.
  • fuse links 75 from a wide variety of fuse systems can be inserted into the switch fuse units according to the invention while maintaining the nominal current unmistakability.
  • Each fuse plug 18 is specifically tailored only to a certain nominal current level of a certain fuse system.
  • the shape of the lower and upper switching contacts 70, 71 in connection with the key flank 193 form for each specific fuse link 75 from a specific fuse system a bearing that is precisely defined and assigned to the size of the fuse link, as well as a coding option that prevents confusion when replacing fuse links.
  • 29 to 41 a switch fuse unit is shown with a second embodiment of a rated current lock, so that the following description is essentially limited to the features different from the first embodiment.
  • a long side of a fuse plug 418 has a codable nominal current key 500 which, when the fuse plug 418 inserted into a rocker switch 413 is pivoted into the switch-off position into a nominal current lock 430 with appropriate coding, shortly before reaching the one shown in FIG. 29 Off position intervenes.
  • the nominal current key 500 can be pulled out of an opening 501 of the nominal current lock 430 together with the safety plug 418 from the switching rocker 413 which is in the off position.
  • the nominal current lock 430 can also be locked when the fuse plug 418 is pivoted with the rocker switch 413 from the switch-off position in the direction of the switch-on position shown in FIG. 34.
  • the nominal current lock 430 can be inserted into a lock holder 502 with a detent seat, which is fixed to the housing consisting of the housing halves 402, 403; but is releasably connected.
  • the nominal current key 500 consists of a coding plate 503, which is held by a supporting web 505 at a distance parallel to the underside 504 of the fuse plug 418, which extends vertically and longitudinally from the underside 504 of the fuse plug 418 from an end apron.
  • the nominal current lock 430 has a recess 506 which is delimited on at least two codable sides.
  • the two encodable sides of the recess 506 are formed by two side walls 507, 508, which are provided with crenellated incisions 464 or projections 465, the crenellated projections 509 or incisions 510 in the side edges 511 of the opposite side walls 507, 508 Correspond to coding plate 503.
  • the recess 506 of the rated current lock 430 is designed as a rectangular groove 512 which is open to the interior of the housing 402, 403 and which, in the switched-off position of the rocker switch 413, runs parallel to the insertion channel 400 thereof.
  • the right-angled groove 512 is undercut on a groove section 514 directed towards the end face 513 of the rated current lock 430.
  • the clear cross section of this undercut groove section 514 corresponds approximately to the cross section of the support web 505 and the coding plate 503, so that the support web 505 and the coding plate 503 are guided in a longitudinally displaceable manner in the groove section 514 on the underside of the securing plug 418.
  • the nominal current lock 430 can be inserted with side longitudinal strips 515, 516 into an undercut groove 517 of the lock holder 502 until it is flush with an expanded end plate 518 on the outer end face 519 of the lock holder 502.
  • a locking lug 520 at the inner end of the nominal current lock 430 engages behind the inner end 431 of the lock holder 502 in a latching manner.
  • the enlarged end plate 518 of the nominal current lock 418 engages in a corresponding recess 521 on the end face 519 of the lock holder 502 and covers a cutout 522 in the outer end edge 523 of the lock holder 502.
  • the cutout 522 thus forms an insertion opening for a release tool (not shown), for example a screwdriver, with the aid of which the expanded end plate 518 of the rated current lock from the end side 519 of the lock holder 502 can be pushed away.
  • a release tool for example a screwdriver
  • FIG. 31 and 34 show a holding curve segment 524 which projects radially from the circular circumferential surface 525 of the rocker switch 413 and has an angular cross section.
  • This holding curve segment 525 is arranged on the peripheral surface 524 of the rocker switch 413 in such a way that it engages in a locking groove 526 of the rated current lock 430 immediately after leaving the switched-off position of the rocker switch 413 and locks it in a form-fitting manner.
  • the lock holder 502 is provided on at least one side with a longitudinal groove 527 which is closed towards the outer end of the lock holder 502.
  • a longitudinal rib 528 engages in this longitudinal groove 527 on the opposite inner wall 529 of the housing half 402, in the operating position of the lock holder 502, in such a way that the lock holder 502 is flush with the outside 428 of the housing 402, 403.
  • a fastening tongue 532 provided with a bore 531, which is attached to the inner end of the lock holder 502, engages between the two housing halves 402, 403 of the housing at the level of mutually aligned transverse bores 533, 534 in the two housing halves 402, 403.
  • a fastening member 535 designed as a rivet or screw is passed through the mutually aligned bores 531, 533, 534 in the fastening tongue 532 and the housing halves 402, 403, so that the lock holder 502 is held firmly in the housing.
  • a safety stopper (418) coded to a rated current value with an interchangeable fuse-wire-insert is arranged in t switch rocker (413) of a safety switch unit and cooperates with a rated current lock (430) correspondingly coded and s cured to the housing.
  • a rated current key (500) of the safety stopper (418) is connected to the rated current lock (43 which is lockable in the switching rocker (413) and held in a lock holder (402) secured to the housing.
  • An arrester devi stops the empty switching rocker (413) in a switch-off position and may be released by the safety stopper (418) in respon to a prestressed spring.
  • Two switching contacts of the safety stopper (413) set the contact caps of the safety insert in conta and the switching contacts of the housing in a switch-on position.
  • Advantages simple adaptation to rated current plug impossibility to invert the rated current provided only by the replacement of the rated current lock (413) and the safe stopper (418) , switching action between switch contacts and switch contacts of the housing protecting the contact ca against mechanical wear and erosion due to the sparks.
  • a fuse plug (418) coded for a nominal current value with an exchangeable fuse insert is arranged in the rocker switch (413) of a switch fuse unit and interacts with a correspondingly coded nominal current lock (430) which is attached to the housing.
  • a nominal current key (500) of the fuse plug (418) is connected to the nominal current lock (430), which can be locked in the rocker switch (413) and is held in a lock holder (502) fastened in the housing.
  • a locking device locks the empty rocker switch (413) in the off position and can be unlocked by means of a safety plug (418) against a biasing spring.
  • Two switch contacts of the fuse plunger (413) contact fuse insert contact caps as well as housing switch contacts in the ON position.

Landscapes

  • Fuses (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)
  • Tumbler Switches (AREA)

Abstract

Un bouchon de sécurité (418) codé à une valeur de courant nominal avec une cartouche fusible interchangeable est disposé dans la bascule de commutation (413) d'une unité de sécurité de commutateur et agit de concert avec une serrure de courant nominal (430) codée de manière correspondante et fixée au boîtier. Une clef de courant nominal (500) du bouchon de sécurité (418) est reliée à la serrure de courant nominal (430) qui est verrouillable dans la bascule de commutation (413) et maintenue dans un porte-serrure (502) fixé au boîtier. Une installation d'arrêt stoppe la bascule de commutation vide (413) en position de disjonction et peut être débloquée par le bouchon de sécurité (418) en réponse à un ressort de précontrainte. Deux contacts de commutation du bouchon de sécurité (413) mettent en contact les capuchons de contact de la cartouche fusible et les contacts de commutation de boîtier en position de connexion. Avantages: adaptation simple des prises de courant nominal, impossibilité d'intervertir le courant nominal assurée seulement par le remplacement de la serrure de courant nominal (430) et du bouchon de sécurité (418), travail de commutation entre contacts de commutation et contacts de commutation de boîtier protégeant les capuchons de contact de l'usure mécanique et de l'érosion due aux étincelles.
PCT/DE1985/000054 1984-02-24 1985-02-25 Unite de securite de commutateur WO1985003617A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843406815 DE3406815A1 (de) 1984-02-24 1984-02-24 Schaltersicherungseinheit
DEP3406815.5 1984-02-24

Publications (2)

Publication Number Publication Date
WO1985003617A2 true WO1985003617A2 (fr) 1985-08-29
WO1985003617A3 WO1985003617A3 (fr) 1985-09-12

Family

ID=6228775

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1985/000054 WO1985003617A2 (fr) 1984-02-24 1985-02-25 Unite de securite de commutateur

Country Status (4)

Country Link
EP (1) EP0173700A1 (fr)
AU (1) AU4061285A (fr)
DE (1) DE3406815A1 (fr)
WO (1) WO1985003617A2 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0319606A1 (fr) * 1987-12-09 1989-06-14 Klaus Bruchmann GmbH Commutateur avec coupe-circuit
FR2627010A1 (fr) * 1988-02-04 1989-08-11 Lindner Gmbh Coupe-circuit electrique a porte-fusible mobile pour cartouches a capsules cylindriques de contact
WO1999008303A1 (fr) * 1997-08-07 1999-02-18 Klaus Bruchmann Fusible a codage

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DE3513462A1 (de) * 1985-04-15 1986-10-16 Klaus 8600 Bamberg Bruchmann Schaltersicherungseinheit
DE3741743C2 (de) * 1987-12-09 1997-01-30 Klaus Bruchmann Gmbh Sicherungsschalter
DE3840511A1 (de) * 1988-02-04 1989-08-24 Lindner Gmbh Elektrischer schmelzsicherungsschalter
DE4127214C2 (de) * 1991-08-16 1998-09-03 Klaus Bruchmann Niederspannungs-Schmelzsicherung
DE19800779B4 (de) * 1998-01-12 2004-09-23 Klaus Bruchmann Sicherungshalter mit integrierter Anschlußleitung für Zustandsmelder
EP1198807B1 (fr) 1999-07-22 2004-05-19 Klaus Bruchmann Unite de fusible a commutateur pourvue d'un verrouillage de maintien
DE19934537C1 (de) * 1999-07-22 2001-07-12 Klaus Bruchmann Schutzvorrichtung für einen Kontakt eines Sicherungseinsatzes
DE19934541C1 (de) * 1999-07-22 2001-06-28 Klaus Bruchmann Schaltersicherungseinheit und Schaltwippe mit Überwachungsanzeige
AU765338B2 (en) 1999-07-22 2003-09-18 Klaus Bruchmann Fuse combination unit and operating rocker with monitoring display
DE19934542C1 (de) * 1999-07-22 2001-03-15 Klaus Bruchmann Schaltersicherungseinheit mit Halterverriegelung
DE19934539C1 (de) * 1999-07-22 2001-03-15 Klaus Bruchmann Schaltsystem mit kombinierter Schalt- und Blockiervorrichtung
DK1134762T3 (da) 2000-03-16 2004-08-30 Naimer H L Afbryder
AT414284B (de) * 2000-03-16 2006-11-15 Naimer H L Kombination eines schalters mit einer aufnahme für sicherungen
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DE692261C (de) * 1938-04-13 1940-06-15 Siemens Schuckertwerke Akt Ges haltbare Sicherungen
US2910562A (en) * 1955-04-29 1959-10-27 Mc Graw Edison Co Protectors for electric circuits
GB1135351A (en) * 1966-01-03 1968-12-04 Westinghouse Electric Corp Fused electric switch
FR2067912A5 (fr) * 1969-11-21 1971-08-20 Capelin
FR2191234A1 (fr) * 1972-06-28 1974-02-01 Faeam
FR2268348A1 (en) * 1974-04-17 1975-11-14 Faeam Fuse assembly with adjustable fuse holder - has fuse recess with removable fuse size adaptor
FR2349946A1 (fr) * 1976-04-27 1977-11-25 Lindner Gmbh Coupe-circuit avec sectionneur incorpore et cartouches fusibles
DE2748589A1 (de) * 1977-10-28 1979-05-03 Siemens Ag Nh-sicherungstraeger
GB2042273A (en) * 1979-02-01 1980-09-17 Lindner Gmbh Electric fuse holder for fuse cartridges
DE8410544U1 (de) * 1984-04-04 1984-08-16 Lindner Gmbh, Fabrik Elektrischer Lampen Und Apparate, 8600 Bamberg Elektrischer Einbau-Sicherungssockel für Schmelzsicherungen

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GB1118433A (en) 1964-10-01 1968-07-03 Ashley Accessories Ltd Improvements in or relating to fused electric wiring accessories
FR1467125A (fr) * 1965-12-13 1967-01-27 Telemecanique Electrique Sectionneur rotatif à cartouche fusible
DE2946874A1 (de) 1979-11-21 1981-05-27 Christian Geyer GmbH & Co, 8500 Nürnberg Schaltersicherung

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DE692261C (de) * 1938-04-13 1940-06-15 Siemens Schuckertwerke Akt Ges haltbare Sicherungen
US2910562A (en) * 1955-04-29 1959-10-27 Mc Graw Edison Co Protectors for electric circuits
GB1135351A (en) * 1966-01-03 1968-12-04 Westinghouse Electric Corp Fused electric switch
FR2067912A5 (fr) * 1969-11-21 1971-08-20 Capelin
FR2191234A1 (fr) * 1972-06-28 1974-02-01 Faeam
FR2268348A1 (en) * 1974-04-17 1975-11-14 Faeam Fuse assembly with adjustable fuse holder - has fuse recess with removable fuse size adaptor
FR2349946A1 (fr) * 1976-04-27 1977-11-25 Lindner Gmbh Coupe-circuit avec sectionneur incorpore et cartouches fusibles
DE2748589A1 (de) * 1977-10-28 1979-05-03 Siemens Ag Nh-sicherungstraeger
GB2042273A (en) * 1979-02-01 1980-09-17 Lindner Gmbh Electric fuse holder for fuse cartridges
DE8410544U1 (de) * 1984-04-04 1984-08-16 Lindner Gmbh, Fabrik Elektrischer Lampen Und Apparate, 8600 Bamberg Elektrischer Einbau-Sicherungssockel für Schmelzsicherungen

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* Cited by examiner, † Cited by third party
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EP0319606A1 (fr) * 1987-12-09 1989-06-14 Klaus Bruchmann GmbH Commutateur avec coupe-circuit
FR2627010A1 (fr) * 1988-02-04 1989-08-11 Lindner Gmbh Coupe-circuit electrique a porte-fusible mobile pour cartouches a capsules cylindriques de contact
WO1999008303A1 (fr) * 1997-08-07 1999-02-18 Klaus Bruchmann Fusible a codage

Also Published As

Publication number Publication date
DE3406815C2 (fr) 1989-10-26
EP0173700A1 (fr) 1986-03-12
DE3406815A1 (de) 1985-09-12
WO1985003617A3 (fr) 1985-09-12
AU4061285A (en) 1985-09-10

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