EP2140521B1 - Installationsschaltgerät mit einer federzugklemmenanordnung - Google Patents

Installationsschaltgerät mit einer federzugklemmenanordnung Download PDF

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Publication number
EP2140521B1
EP2140521B1 EP08735218A EP08735218A EP2140521B1 EP 2140521 B1 EP2140521 B1 EP 2140521B1 EP 08735218 A EP08735218 A EP 08735218A EP 08735218 A EP08735218 A EP 08735218A EP 2140521 B1 EP2140521 B1 EP 2140521B1
Authority
EP
European Patent Office
Prior art keywords
spring
housing
clamping
switching device
lever
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.)
Active
Application number
EP08735218A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2140521A1 (de
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/de
Application granted granted Critical
Publication of EP2140521B1 publication Critical patent/EP2140521B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R4/48365—Spring-activating arrangements mounted on or integrally formed with the spring housing with integral release means
    • 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
    • H01R4/48455—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar insertion of a wire only possible by pressing on the spring

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 Federzugklemmenan Aunt comprises a spring actuating means with which an operator can open the spring-loaded terminal by pressure on the spring leaf.
  • 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.
  • the EP 1 213 791 B1 shows a spring clamp assembly comprising a control lever for the leaf spring, with a spring blade of the cage type, which forms a loop of triangular course at the rounded angles, the two end portions are aligned exactly perpendicular to each other, and with an electrically conductive terminal on which first end portion of the spring blade 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.
  • the US Pat. No. 6,341,989 B1 shows a terminal for mounting on a circuit board, with a spring clamp and a spring actuation lever, the two lever arms form a right angle with each other, and the operating arm in the rest position flat against the narrow side of the terminal housing.
  • the operating arm For manual operation of the operating arm is only a small nose at the free end of the operating arm available, making it difficult to manually operate.
  • the EP 1 296 413 A1 also shows a terminal for mounting on a printed circuit board, with a spring-loaded terminal and a spring actuating lever, the operating arm is in the rest position in a well on the narrow side of the terminal housing and thus flush with the narrow side, and for the operation of a tool, such as a screwdriver, must be used in a hook-shaped approach at the free end of the operating arm.
  • the operating arm is in the rest position perpendicular to the narrow side and is flush with the rear front side of the housing.
  • An inventive installation switching device has the advantage of easy manual operation. It is easy to get hold of the operating arm by the vertically projecting arm easy and to use its leverage to open the clamping spring.
  • the operating arm in the embodiment according to the invention simultaneously acts as a closure of the terminal receiving space in the region of the transition from the rear front side to the rear narrow side.
  • the spring actuating means is separated from the terminal and stored in the housing.
  • the clamp itself can therefore be designed very simple. For the arrangement of the spring actuator in the housing, the simplest and best to install option can be selected.
  • 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 spring actuating lever advantageously contributes to the bending arm at its free end a cam-shaped contact surface, with which he presses oppressively when operating in the opening direction on the spring back, thereby achieving a continuous opening process and in the end position of the open position by a kind of locking a self-locking of the spring actuating lever is reached.
  • 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.
  • a particularly advantageous embodiment of the spring actuating lever first guide means and in the interior of the housing shells second guide means are mounted, 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 which can cooperate in the open position with the first guide means of the spring actuating lever, so that an unintentional pivoting of the spring actuating lever from the opening - is prevented in the rest position.
  • 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. 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 31, a rear front 33, a front narrow side 34, a rear narrow side 35 and a mounting side. A broadside, which connects the front and narrow sides parallel to the plane of the drawing, is also present, but in the representation after Fig. 10 not shown. It is in the perspective view of Fig. 5 indicated.
  • 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 in terminal receiving spaces, of which in the Fig. 10 one shown by the reference numeral 32 housed.
  • 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 a plant leg 21, with which it rests on the free end of a busbar 22, which connects to the current path into the device interior 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 in the Fig. 11 shown, this shows the clamping spring 20 in the open position. From the rear narrow side 35, 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 connecting conductor between the clamping edge 26 and the side facing away from the plant leg 21 of the clamping strip 23 is then clamped.
  • a spring actuating lever 10 is mounted in the service switching device. This is rotatably mounted in an axis 11 coupled to the housing.
  • the spring actuation lever 10 is a double-arm lever with a projecting from the housing arm 12 and extending 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 27 of the spring.
  • the operating arm 12 In the rest position, the operating arm 12 is perpendicular to the rear narrow side 35 and flush with the rear front side 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 cam-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 actuating lever 10 At the end of the opening movement then the spring actuating lever 10 is 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 based on the FIGS. 8, 9, 12 and 13 explained.
  • the spring actuating lever 10 consists of a core part 101 and a cover part 102 pushed over it, which has an internal 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-action 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 FIG. 8 , an extended position, according to FIG. 9 , and a middle position, according to FIG. 13 ,
  • undercuts 108, 109 which are arranged so that they latch in the inserted position with the latching noses 106, 107.
  • second undercuts 110, 111 which are arranged so that they lock in the extended position with the locking lugs 106, 107.
  • third undercuts 112, 113 which are arranged so that they lock in the middle position with the locking lugs 106, 107.
  • the advantageous effect is that by pulling out the Hüllteils 102 of the effective lever arm of the operating arm can be extended and thus when operating the spring, a greater leverage can be achieved.
  • 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 shows again the spring actuating lever 10 in the retracted position, from the top, as an operator sees it in the installed state 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 indicates the spring action lever Fig. 1 , installed in a service switching device, in the rest position.
  • FIG. 2 indicates the spring action lever Fig. 1 , in the extended position, and in the Fig. 4 the spring action lever is shown in the extended position, installed in a service switching device and in the rest position.
  • FIG. 5 indicates the spring action lever Fig. 2 , now pivoted upwards in its opening position in the housing.
  • the guide pins 114, 115 are formed near its insertion opening for the core part, so that they are opposite in the axial direction and projecting 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.
  • Fig. 7 is the spring actuating lever in the retracted position and is shown in an intermediate position between the rest position and the open position.
  • Fig. 6 is the spring actuating lever in its open position and is partially pulled out to its middle position.
  • the guide pins 114, 115 lock with a laterally in the housing broadside at correspondingly corresponding point mounted locking 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.
  • FIGS. 14 to 21 The various operating and handling options of the spring actuation lever are in the FIGS. 14 to 21 shown again.
  • Fig. 14 is the spring action lever 10 in its rest position and the envelope 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 this by pivoting out of the position of the Fig. 15 out into 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 after Fig. 16 ,
  • the locking lugs 106, 107 are latched to the second undercuts 110, 111, so that an unintentional pushing back of the Hüllmaschines 102 is difficult.
  • the Hüllteil is partially retracted to its middle position. In this position, the guide pin is pushed behind the locking projection 39 and held by this. As a result, a pivoting of the spring actuating lever is blocked back to the rest position.
  • the Fig. 19 shows the view from the direction of arrow A on the spring actuating lever in the position after Fig. 18 , The locking lugs 114, 115 are latched to the third undercuts 112, 113, so that unintentional moving out of the Hüllteils 102 is difficult from its middle position.
  • FIG. 20 shows the view from the direction of arrow A on the spring actuating lever in the position after Fig. 20 , The locking lugs 114, 115 are latched to the first undercuts 106, 107, so that unintentional moving out of the Hüllteils 102 from its retracted position out is also difficult.

Landscapes

  • Clamps And Clips (AREA)
  • Breakers (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Mounting Of Printed Circuit Boards And The Like (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP08735218A 2007-04-21 2008-04-14 Installationsschaltgerät mit einer federzugklemmenanordnung Active EP2140521B1 (de)

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 (de) 2007-04-21 2008-04-14 Installationsschaltgerät mit einer federzugklemmenanordnung

Publications (2)

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

Family

ID=39777743

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08735218A Active EP2140521B1 (de) 2007-04-21 2008-04-14 Installationsschaltgerät mit einer federzugklemmenanordnung

Country Status (7)

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

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US11095054B2 (en) 2019-09-20 2021-08-17 Wago Verwaltungsgesellschaft Mbh Conductor terminal and method of assembling a conductor terminal

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JP5324123B2 (ja) * 2008-04-25 2013-10-23 スリーエム イノベイティブ プロパティズ カンパニー プッシュ式コネクタ
DE102008039868A1 (de) * 2008-08-27 2010-03-04 Phoenix Contact Gmbh & Co. Kg Elektrische Anschlußklemme
CN102132460B (zh) * 2008-08-27 2013-09-18 菲尼克斯电气公司 电接线端子
FR2950485B1 (fr) * 2009-09-23 2012-11-16 Auxel Repartiteur a bornes elastiques
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FR2955978A1 (fr) 2010-02-01 2011-08-05 Schneider Electric Ind Sas Borne elastique de raccordement a levier
DE102010048698B4 (de) 2010-10-19 2014-12-18 Wago Verwaltungsgesellschaft Mbh Elektrische Verbindungsklemme
DE102010053291B4 (de) 2010-12-02 2013-07-18 Abb Ag Installationsschaltgerät mit einer Federzugklemme
JP2013002573A (ja) * 2011-06-17 2013-01-07 Fuji Electric Fa Components & Systems Co Ltd 小形回動部材の軸受機構
DE102011110640B4 (de) * 2011-08-18 2014-07-31 Wago Verwaltungsgesellschaft Mbh Leiteranschlussklemme
CN103001008A (zh) * 2011-09-19 2013-03-27 上海友邦电气(集团)股份有限公司 一种快速接线端子结构
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DE102012110759B4 (de) * 2012-11-09 2021-04-01 Wago Verwaltungsgesellschaft Mbh Federkraftklemmanschluss und elektrisches Gerät hiermit
DE102013101406B4 (de) * 2013-02-13 2018-07-12 Wago Verwaltungsgesellschaft Mbh Leiteranschlussklemme
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TW201507300A (zh) * 2013-08-07 2015-02-16 Switchlab Inc 導線端子座改良結構
DE102013110475A1 (de) * 2013-09-23 2015-03-26 Phoenix Contact Gmbh & Co. Kg Elektrische Anschlussklemme
DE102014118759B4 (de) 2014-12-16 2020-12-03 Abb Ag Installationsschaltgerät mit zwei Anschlussklemmen unterschiedlichen Typs an einer Gehäuseseite
DE102015100823B4 (de) * 2015-01-21 2021-12-09 Phoenix Contact Gmbh & Co. Kg Elektrische Anschlussklemme
CN204558667U (zh) * 2015-04-11 2015-08-12 江门市创艺电器有限公司 一种接线端子连接器
CN205092351U (zh) * 2015-10-12 2016-03-16 泰科电子(上海)有限公司 可现场装线的连接器
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CN110875529B (zh) * 2018-09-04 2021-01-08 金笔企业股份有限公司 电线接头
CN109768397A (zh) * 2019-03-15 2019-05-17 贵州锐新科技有限公司 一种接线端子
DE102020100218A1 (de) 2020-01-08 2021-07-08 WAGO Verwaltungsgesellschaft mit beschränkter Haftung Leiteranschlussklemme
DE102020119865A1 (de) * 2020-07-28 2022-02-03 WAGO Verwaltungsgesellschaft mit beschränkter Haftung Leiteranschlussklemme

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Publication number Priority date Publication date Assignee Title
US11095054B2 (en) 2019-09-20 2021-08-17 Wago Verwaltungsgesellschaft Mbh Conductor terminal and method of assembling a conductor terminal

Also Published As

Publication number Publication date
CN101682128A (zh) 2010-03-24
WO2008128668A1 (de) 2008-10-30
DE102008017738A1 (de) 2008-10-30
US20100116634A1 (en) 2010-05-13
EP2140521A1 (de) 2010-01-06
CA2683775A1 (en) 2008-10-30
ES2396166T3 (es) 2013-02-19
CN201285805Y (zh) 2009-08-05
CN101682128B (zh) 2011-12-28
US8129641B2 (en) 2012-03-06

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