EP2140521A1 - Commutateur d'installation comportant un dispositif de borne a ressort de rappel - Google Patents

Commutateur d'installation comportant un dispositif de borne a ressort de rappel

Info

Publication number
EP2140521A1
EP2140521A1 EP08735218A EP08735218A EP2140521A1 EP 2140521 A1 EP2140521 A1 EP 2140521A1 EP 08735218 A EP08735218 A EP 08735218A EP 08735218 A EP08735218 A EP 08735218A EP 2140521 A1 EP2140521 A1 EP 2140521A1
Authority
EP
European Patent Office
Prior art keywords
spring
clamping
housing
actuating lever
switching device
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP08735218A
Other languages
German (de)
English (en)
Other versions
EP2140521B1 (fr
Inventor
Joachim Majewski
Roland Ritz
Klaus-Peter Eppe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB AG Germany
Original Assignee
ABB AG Germany
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 ABB AG Germany filed Critical ABB AG Germany
Publication of EP2140521A1 publication Critical patent/EP2140521A1/fr
Application granted granted Critical
Publication of EP2140521B1 publication Critical patent/EP2140521B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/483—Pivoting arrangements, e.g. lever pushing on the spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4811—Spring details
    • H01R4/4816—Spring details the spring shape preventing insertion of the conductor end when the spring is unbiased
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/4835—Mechanically bistable arrangements, e.g. locked by the housing when the spring is biased

Definitions

  • the invention relates to an installation switching device with a spring-type terminal assembly according to the preamble of claim 1.
  • Generic installation switching devices may be, for example, circuit breaker, residual current device, motor protection switch or selective main line circuit breaker.
  • a tool is required to open the spring clamp, is applied with the pressure on the spring leaf.
  • the spring-loaded terminal arrangement itself is then very simple in design, an additional operating opening must be provided in the housing of the service switching device, and the handling is complicated because of the tool required for inserting and removing the connecting conductor.
  • the spring-loaded terminal arrangement In order to be able to connect and disconnect a connecting conductor without tools on the generic spring-type terminals, it is necessary for the spring-loaded terminal arrangement to comprise a spring actuating means with which an operator can open the spring-loaded terminal by pressure on the spring blade if required.
  • the closing of the clamp is self-evident due to the resiliency of the spring blade when the pressure on the spring blade is withdrawn.
  • EP 1 213 791 B1 discloses a spring-type terminal assembly comprising a spring leaf actuating lever with a cage-type spring blade forming a loop of triangular shape at the rounded angles, the two end portions being exactly perpendicular to each other, and with US Pat an electrically conductive terminal on which the first end portion of the spring leaf is mounted, and wherein an opening passes through the sheet.
  • the operating lever of the blade is mechanically connected to the clamp and guide means for the operating lever are attached to the clamp.
  • the guide means allow the lever in to maintain constant contact with the spring leaf. The lever is, when the spring leaf is not pressurized, on the culmination of the spring leaf.
  • the advantage of the tool-free operation is due to the disadvantage of a complicated design of the spring clip assembly. It is therefore the object of the present invention to provide a generic service switching device in which a connection conductor can be inserted and removed with a simply designed, conventional spring-type terminals arrangement without tools.
  • an actuatable from outside the housing spring actuating lever is pivotally connected to the housing, which presses when pivoting from a rest position to an opening position with a bending arm on the spring back, that the clamping window releases a clamping opening on the back of the clamping strip for insertion of the connecting conductor.
  • An inventive installation switching device has the advantage that the spring actuating means is separated from the terminal and stored in the housing.
  • the clamp itself can therefore be designed very simple.
  • the simplest and best to install option can be selected.
  • the spring actuating lever is a double-arm lever with a protruding from the housing operating arm and a guided inside the housing bending arm.
  • This can be made of plastic and therefore very inexpensive.
  • the storage in the housing for example, take place in an axis fixedly connected to the housing.
  • the axis can also be realized in that in each case a pin is integrally formed on the pivot point of the double-arm lever, which is pivotably mounted in a respective corresponding recess in the inside of the housing.
  • the spring actuating lever is mounted so that it remains in its open position by self-locking in this, until it is pivoted by hand back into the Ruhrposition.
  • the operating arm is formed in two parts in the form of two mutually displaced partial arms.
  • the operating arm can be extended by pulling out the second partial arm, so that a greater lever force can be achieved during pivoting.
  • first guide means on the Federbet2011i- lever and second guide means are mounted inside the housing shells, which cooperate to guide the spring actuating lever.
  • the clamping spring itself has no guide means and is therefore very easy to design.
  • a locking device can be mounted in the interior of the housing shells, which in the opening position can cooperate with the first guide means of the spring actuating lever, so that inadvertent pivoting of the spring actuating lever from the opening to the rest position is prevented.
  • the spring actuating lever is arranged so that it rests in the Ruhrposition flush with the rear front side of the housing and perpendicular to the associated narrow side, and is pivoted in the open position to the front front side, so that it is perpendicular to the opening position in the Rear front side and approximately flush with the associated narrow side protrudes.
  • the second guide means is an arcuate groove and the first guide means is a guide pin on the spring actuating lever.
  • the spring actuating lever On the inside of the housing can be mounted in the region in which the guide pin is in the open position located spring actuating lever, a locking contour, and in the open position, the spring actuating lever can be displaced in the direction of the Arretsammlungskontur that the guide pin with the Arret michskontur is coupled and so inadvertent pivoting of the spring actuating lever from the opening - is prevented in the Ruhrposition.
  • the locking contour may advantageously be a protruding on the inner wall of the housing web or undercut.
  • FIG. 1 shows a first embodiment of a Federbetätungs-- Hebeis invention in collapsed state
  • FIG. 2 shows the spring actuating lever according to FIG. 1, in an extended state
  • FIG. 4 shows the spring actuating lever according to FIG. 1, in the extended state, in its installed position in the housing
  • FIG. 5 the spring actuating lever of FIG. 1, placed in the open position, in its installed position in the housing, 6 shows the spring actuating lever according to FIG. 5, with the housing partially open, FIG.
  • Fig. 7 shows the spring actuating lever of Fig. 6, in a partially pivoted
  • FIG. 8 a spring actuating lever according to FIG. 1, viewed from the bottom, FIG.
  • FIG. 9 is a spring actuating lever of FIG. 2, viewed from the bottom,
  • Fig. 10 is a spring operating lever with the associated clamping spring, installed in the terminal receiving space of a service switching device, in the rest position
  • Fig. 11 is a spring operating lever with the associated clamping spring, installed in the terminal receiving space of a service switching device, in the open position
  • Fig. 14 shows another embodiment of a spring actuating lever, in his
  • FIG. 15 shows a further embodiment of a spring actuating lever, in its installed position in the terminal receiving space of a service switching device, in an exploded state and in its rest position,
  • FIG. 16 shows the spring actuating lever according to FIG. 15, in its open position
  • FIG. 10 shows a spring actuating lever 10 with the associated clamping spring 20, installed in the terminal receiving space 32 of a service switching device 30, in the rest position.
  • the service switching device 30 may be a circuit breaker, a main switch, a motor protection switch or the like. Its housing made of an insulating material is indicated schematically. It comprises a front front side 31, a rear front side 33, a front narrow side 34, a rear narrow side 35 and a fastening side. A broad side, which connects the front and narrow sides parallel to the plane of the drawing, is also present, but not shown in the illustration of FIG. 10. It is indicated in the perspective view of FIG. 5.
  • An installation switching device 30 is usually used to monitor and / or switch a current path which is passed through it between two connection terminals.
  • further components and elements are present in the interior of the service switching device, such as at least one contact point comprising a movable and a fixed contact piece, a movable contact lever, a switching mechanism for actuating the contact lever, one or more trigger assemblies, such as a thermal overcurrent release and / or a magnetic Puncture anchor system, a control lever for manual operation from the outside, a display device for displaying the switching state, and the like.
  • On the mounting side 36 may be fasteners with which the service switching device can be mounted on mounting rails or on busbars in distribution boards.
  • the internal structure and the external connection and fastening devices of a service switching device should be assumed to be known in view of the present invention.
  • the terminals are housed in terminal receiving spaces, one of which is shown in FIG. 10 with the reference numeral 32.
  • the terminal receiving space 32 is located in the region of the rear narrow side 35, in the vicinity of the rear front 33rd
  • a clamping spring 20 is mounted in the terminal connection space 32.
  • the spring leaf of the clamping spring forms a loop with a triangular contour and rounded corners.
  • the clamping spring thus has an abutment leg 21, with which it rests on the free end of a busbar 22, which connects the connection to the current path in the device inside into it.
  • the free end 23 of the busbar 22 is also referred to here as a clamping strip, and the busbar 22 is also referred to as a carrier part.
  • the clamping spring 20 further has a clamping leg 24, which extends approximately perpendicular to the plant leg 21.
  • a clamping window 25 In the clamping leg 24 is a designated as a clamping window 25, rectangular recess is present, the lower edge of the clamping edge 26 forms.
  • the investment and the clamping leg 21, 24 are connected by the spring back 27.
  • the clamping leg 24 By pressure from the top of the spring back 27, ie in the direction perpendicular to the plant leg 21 to this, the clamping leg 24 can be moved downwards, so that the clamping window is pressed onto the side facing away from the plant leg 21 of the clamping strip.
  • This position is shown in Fig. 11, this shows the clamping spring 20 in the open position.
  • a connection conductor can now be inserted into the clamping window 25. If the pressure force on the spring back is released, then this draws due to its spring property, the clamping leg 24 back toward the rest position. In this case, the inserted connection conductor between the clamping edge 26 and he the plant leg 21 facing away from the clamping strip 23 is then clamped.
  • a Federbetuschists- lifting 10 is mounted in the service switching device. This is rotatably mounted in an axis 11 coupled to the housing.
  • the spring actuating lever 10 is a double-arm lever with a projecting from the housing arm 12 and a running inside the housing bending arm 13.
  • the operating arm 12 acts as a handle for actuating the clamping spring 20.
  • the bending arm 13 acts on the spring loop on the spring back 27. In the Rest position is the operating arm 12 perpendicular to the rear narrow side 35 and flush with the rear front of the housing. He thus acts simultaneously as a closure of the terminal receiving space 32 in the region of the transition from the rear front 33 to the rear narrow side 35th
  • the bending arm 13 of the spring actuating lever 10 carries at its free end a cup-shaped curved contact surface 14. This is bent away from the spring back 27. At its end, the bending arm 13 carries a flattening 15.
  • the spring operating lever 10 is pivoted by an operator by hand from the rest position of FIG. 10 in the open position shown in FIG. 11 about the axis 11, then the bending arm 13 rolls off with its contact surface 14 on the spring back 27, wherein this in its opening position bends out.
  • tilting of the spring actuating lever 10 with the clamping spring 20 is prevented.
  • the spring actuating lever 10 protrudes in its open position approximately perpendicular to the rear front side 33, see FIG. 11.
  • the bending arm 13 then holds in its end position with its flattening 15 the clamping spring in its open position.
  • the flattening 15 is flat on the spring back.
  • the restoring force of the clamping spring acts via the flattening 15 perpendicular to the bearing axis 11 of the spring actuating lever. As a result, this results in a self-locking or locking of the spring actuating lever 10 in the open position.
  • the spring actuating lever can not automatically fall back into the rest position from the open position.
  • the spring actuating lever 10 is thus mounted in the housing and not connected to the terminal.
  • the clamp itself does not include guide means for the spring actuating lever 10, but the guide means of the spring actuating lever 10 are provided inside the housing shells.
  • the functions "terminals” and “actuate” are thus implemented on separate modules.
  • the spring actuating lever 10 is designed in two parts. This will now be explained with reference to FIGS. 8, 9, 12 and 13.
  • the spring actuating lever 10 consists of a core part 101 and a cover part 102 pushed over it, which has an inner recess for receiving the core part.
  • the core part 101 forms a double arm lever, one arm of which forms the operating arm 12 of the spring actuating lever 10.
  • the other arm forms an operating extension 103, onto which the enveloping part 102 is pushed in the manner of a sheath.
  • the pushed onto the operating extension 103 Hüllteil 102 thus forms the operating arm 12 of the spring actuating lever.
  • the free end of the operating extension 103 carries two parallel spring arms 104, 105, which each carry a latching nose 106, 107 at their free ends.
  • the wrapper 102 may be slid onto the core member 101 after being placed on it, taking three predetermined positions. These are an inserted position, according to Figure 8, an extended position, according to Figure 9, and a middle position, according to Figure 13. Accordingly, inside the recess of the enveloping part 102, in the vicinity of the free end of the Hüllteils, first undercuts 108, 109, which are arranged so that they lock in the retracted position with the locking lugs 106, 107.
  • the spring actuating lever 10 comprises only two parts which are completely produced as injection-molded parts, for example made of plastic, and thus very inexpensive.
  • the recesses for the storage of the spring actuation lever in the housing broadside are also already there with the injection molding of the housing parts attached.
  • the storage of the spring actuation lever could also be effected by means of a bearing axis. Then the spring operating lever would be pushed during assembly with a bearing bore on the bearing axis.
  • FIG. 1 once again shows the spring actuating lever 10 in the inserted position, from the upper side, just as an operator sees it when it is installed when looking at the rear narrow side 35.
  • the undercuts and the spring arms of the core part are not visible from this side.
  • FIG. 3 shows the spring actuation lever according to FIG. 1, installed in an installation switching device, in the rest position.
  • FIG. 2 shows the spring actuating lever according to FIG. 1 in the extended position
  • FIG. 4 the spring actuating lever is shown in the extended position, installed in an installation switching device and in the rest position.
  • FIG. 5 shows the spring actuating lever according to FIG. 2, now mounted in its open position in the housing and pivoted upwards.
  • Two guide pins 114, 115 are formed on the envelope part close to its insertion opening for the core part so that they face each other in the axial direction and protrude laterally.
  • the guide pins 114, 115 In the extended position are the guide pins 114, 115 between the bearing pin 16 and the free end of the operating arm 12.
  • the guide pins 114, 115 In the retracted position are the guide pins 114, 115 between the bearing pin 16 and the free end of the bending arm 13 of the spring actuating lever.
  • the guide pins 114, 115 are located approximately above the bearing pin 16.
  • the spring actuation lever is in the pushed-in position and is shown in an intermediate position between the rest position and the open position.
  • the spring actuating lever is in its open position and is partially pulled out in its middle position.
  • the guide pins 114, 115 lock with a laterally in the housing broadside at correspondingly corresponding point applied latching projection 39.
  • the spring actuating lever 10 is additionally locked in its open position, an inadvertent closing of the terminal is difficult.
  • the spring actuating lever can only be pivoted back into its rest position when it has been pushed from the middle position back to the retracted position.
  • the various operating and handling options of the spring actuating lever are shown again in FIGS. 14 to 21.
  • the spring actuating lever 10 in its rest position and the enveloping part 102 is in the retracted position.
  • the spring actuating lever is aligned with the rear front side 33 of the housing.
  • the guide pin 115 is located to the right of the axis sixteenth
  • Fig. 16 the position of the spring actuating lever is shown, in which this has been moved by pivoting out of the position of FIG. 15 out in the open position.
  • the guide pin 115 is now above the axis 16. It is free of the latching projection 39, so that the spring actuating lever 10 can be pivoted.
  • Fig. 17 shows the view from the direction of arrow A on the spring actuating lever in the position shown in FIG. 16.
  • the locking lugs 106, 107 are latched to the second undercuts 110, 111, so that unintentional pushing back of the Hüllmaschines 102 is difficult.
  • FIG. 18 shows the view from the direction of the arrow A on the spring actuating lever in the position shown in FIG. 18.
  • the locking lugs 114, 115 are latched to the third undercuts 112, 113, so that an unintentional moving out of the enveloping part 102 from its middle position is difficult.
  • FIG. 20 shows the view from the direction of the arrow A on the spring actuating lever in the position according to FIG. 20.
  • the locking lugs 114, 115 are latched to the first undercuts 106, 107, so that unintentional movement of the enveloping part 102 out of its retracted position is also difficult.

Landscapes

  • Clamps And Clips (AREA)
  • Breakers (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Mounting Of Printed Circuit Boards And The Like (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

L'invention concerne un commutateur d'installation comportant un boîtier présentant un côté frontal avant et un côté frontal arrière, un côté de fixation, des petits côtés avant et arrière et des grands côtés avant et arrière, et une borne à ressort de rappel sans vis fixée immobile dans une chambre de connexion de borne du boîtier. La borne à ressort de rappel comporte un ressort de blocage pourvu d'une jambe d'appui, d'une jambe de blocage et d'une fenêtre de blocage présentant une arête de blocage, et un dos de ressort courbé connectant la jambe d'appui et la jambe de blocage. La borne à ressort de rappel interagit avec une partie support comportant une bande de blocage, de telle manière qu'un connecteur de connexion peut être bloqué entre le côté arrière de la bande de blocage et l'arête de blocage de la fenêtre de blocage. Un levier d'actionnement de ressort pouvant être actionné par l'extérieur du boîtier est connecté de façon pivotante avec le boîtier. Lors du pivotement d'une position de repos vers une position d'ouverture, ledit levier appuie sur le dos de ressort avec un bras de flexion, de telle manière que la fenêtre de blocage libère une ouverture de blocage sur le côté arrière de la bande de blocage pour l'introduction du connecteur de connexion.
EP08735218A 2007-04-21 2008-04-14 Commutateur d'installation comportant un dispositif de borne a ressort de rappel Active EP2140521B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007018960 2007-04-21
DE102008017738A DE102008017738A1 (de) 2007-04-21 2008-04-07 Installationsschaltgerät mit einer Federzugklemmenanordnung
PCT/EP2008/002938 WO2008128668A1 (fr) 2007-04-21 2008-04-14 Commutateur d'installation comportant un dispositif de borne à ressort de rappel

Publications (2)

Publication Number Publication Date
EP2140521A1 true EP2140521A1 (fr) 2010-01-06
EP2140521B1 EP2140521B1 (fr) 2012-11-07

Family

ID=39777743

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08735218A Active EP2140521B1 (fr) 2007-04-21 2008-04-14 Commutateur d'installation comportant un dispositif de borne a ressort de rappel

Country Status (7)

Country Link
US (1) US8129641B2 (fr)
EP (1) EP2140521B1 (fr)
CN (2) CN101682128B (fr)
CA (1) CA2683775A1 (fr)
DE (1) DE102008017738A1 (fr)
ES (1) ES2396166T3 (fr)
WO (1) WO2008128668A1 (fr)

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Also Published As

Publication number Publication date
DE102008017738A1 (de) 2008-10-30
EP2140521B1 (fr) 2012-11-07
US20100116634A1 (en) 2010-05-13
US8129641B2 (en) 2012-03-06
WO2008128668A1 (fr) 2008-10-30
CA2683775A1 (fr) 2008-10-30
CN101682128A (zh) 2010-03-24
ES2396166T3 (es) 2013-02-19
CN101682128B (zh) 2011-12-28
CN201285805Y (zh) 2009-08-05

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