EP2329564A1 - Installation switching device having a screwless clamp terminal - Google Patents
Installation switching device having a screwless clamp terminalInfo
- Publication number
- EP2329564A1 EP2329564A1 EP09778582A EP09778582A EP2329564A1 EP 2329564 A1 EP2329564 A1 EP 2329564A1 EP 09778582 A EP09778582 A EP 09778582A EP 09778582 A EP09778582 A EP 09778582A EP 2329564 A1 EP2329564 A1 EP 2329564A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- switching device
- installation switching
- guide
- terminal
- 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
Links
- 238000009434 installation Methods 0.000 title claims abstract description 22
- 239000004020 conductor Substances 0.000 claims abstract description 34
- IHQKEDIOMGYHEB-UHFFFAOYSA-M sodium dimethylarsinate Chemical class [Na+].C[As](C)([O-])=O IHQKEDIOMGYHEB-UHFFFAOYSA-M 0.000 claims description 5
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/08—Terminals; Connections
Definitions
- the invention relates to a service switching device with a screwless terminal connection, in particular a circuit breaker, residual current circuit breaker, motor protection switch and the like, with a housing which comprises a front side, a mounting side, narrow sides and broadsides, according to the preamble of claim 1.
- the screwless terminal connection has a clamping spring for connecting connecting leads, which is fixed in position in a terminal connection space of the housing, wherein the opening of the terminal connection space is partially covered by a pivotally connected to the housing terminal cover part, which has one of the number to be connected terminal corresponding number of connection openings in a pad and at Pivoting in the direction of the housing interior can act on the clamping spring opening.
- a generic service switching device is known, for example, from DE 10 2006 047 254 A1, DE 10 2007 043 801 A1 and DE 10 2007 044 069 A1, the disclosure of which is intended to be incorporated in the present invention. It may be, for example, a circuit breaker, a residual current circuit breaker, a motor protection switch or the like. It comprises within its housing at least one contact point with at least one fixed and one movable contact piece, via which a current path leading from an input terminal to an output terminal can be opened and closed. The contact point is generally operated by a rear derailleur with Verklinkungsstelle.
- a generic service switching device may further comprise tripping devices, for example a thermal release or a magnetic quick release, which, in the event of a short-circuit or residual current in the current path, contact the contactor. or act the rear derailleur so that then the contact point can be opened.
- the terminal connection is designed in a simple and cost-effective manner so that the tool-free insertion and removal of leads is possible.
- the connection openings are to be sized so that a simple and easy insertion and removal of the connection conductor is possible without this jammed.
- the connection opening should be larger than the outer cross-section of the connection conductor. However, this can lead to contacting problems if the connecting conductor is not guided and supported sufficiently tightly in the connection openings.
- the opening of the terminal connection space is partially covered by a guide member fixedly coupled to the housing and with the terminal cover partially overlapping guide part, which has guide channels for tight guidance of the connection conductor.
- the advantageous effect achieved according to the invention is based on the fact that the two partially contradictory requirements for close guidance and at the same time good mobility are assigned to two separate components.
- the fixedly coupled to the housing guide member serves to guide the connection conductors in the guide channels closely.
- the terminal cover part transmits the actuating forces to the clamping spring, which initially leads to the release of the connecting leads from the clamping spring when the connecting leads are removed, but the connecting leads are still guided and held in the guide channels.
- the guide part and the terminal cover part overlap in the region of the guide channels and the connection openings.
- a very advantageous embodiment of the invention is further characterized in that the guide member forms a stop edge for an inserted terminal conductor. This can prevent unintentional actuation of the clamping spring by the connection conductor.
- the guide channels have a closed cross-sectional contour.
- the guide channels may have a circular cross-section.
- the guide channels have a partially open cross-sectional contour.
- the guide channels may have a segment-like opening of the cross-sectional contour with an opening angle of less than 180 °.
- the cross-sectional contour in this embodiment is not U-shaped open, but in approximately ⁇ - shaped in its cross-sectional contour.
- the opening of the cross-sectional contour of the guide channels advantageously points in the direction of the clamping spring.
- the connection conductor can not slide out of the guide channel laterally, but is still held in the channel interior because of the ⁇ -shaped cross section.
- the invention is characterized in a further embodiment in that the terminal cover part L-shaped, wherein at the free end of the long L - shaped.
- the terminal cover part can have an externally accessible, manually actuable pressure surface at the transition of the long leg to the short leg.
- a further advantageous embodiment of the guide part according to the invention is characterized in that the guide part is designed in the form of a box open on one side, whose side surfaces can be latched to the broad sides of the housing.
- a front side of the guide part can be extended in the direction of the pivot axis, so that it forms part of the rear narrow side of the housing.
- a likewise advantageous further embodiment of the terminal cover part according to the invention is characterized in that the guide part is L-shaped, wherein a first leg carries the guide channels and overlaps with the connection surface of the terminal cover. In this case, the first leg can be firmly coupled to the housing and, in the installed position, point from the narrow side into the interior of the housing.
- a second leg can be formed, which extends in the direction of the front side of the housing and forms part of the front narrow side cover.
- a sliding surface may be integrally formed on the guide part, which points into the interior of the housing and serves to guide the terminal cover during its pivoting.
- the guide surface may be formed in the L-shaped variant of the guide member at the free end of the second leg.
- the guide surface may be integrally formed on a narrow side of the box.
- FIG. 1 is a fragmentary view of an insight into the terminal receiving chamber of an inventive installation switching device and a terminal cover and a guide member, according to a first embodiment of the invention
- FIG. 3 shows the view according to FIG. 2 in a three-dimensional representation
- FIG. 4 shows an installation switching device in a view according to FIG. 3 with an inserted connecting conductor
- 5 is a schematic exploded view of the terminal receiving space of an installation switching device according to the invention and a terminal cover part and a guide part, according to a second embodiment of the invention
- FIG. 6 shows the terminal receiving space according to FIG. 5 with inserted terminal cover and guide part in a vertical plan view the broadside
- FIG. 7 shows the view according to FIG. 6 in a spatial representation
- FIG. 8 shows an installation switching device in a view according to FIG. 7 with an inserted connecting conductor
- FIGS. 1 to 4 will be considered, showing a first embodiment of the invention.
- Figure 1 shows in a kind of exploded view a cut-open part of a service switching device 1, and a terminal cover 22 and a guide member 24 which are attached to the housing of the service switching device to complete the housing to its narrow side. It may be a circuit breaker, a residual current circuit breaker, a motor protection switch or the like.
- From the housing 3 of the service switching device can be seen a part of the broad side 31, a part of the rear front side 32, a part of the front narrow side 33, and a part of the attachment side 6.
- On the attachment side 6 is a fixed nose 61, with which the housing. 3 can be held on a leg of a profile support rail.
- an arc splitter stack 4 which is part of an arc quenching device, which - the contact point - not shown - of the service switching device 1 is assigned.
- Other parts and components of a generic service switching device such as said contact point with a fixed and a movable contact piece on a movable contact lever, a rear derailleur and a thermal and / or electromagnetic actuator assembly, as well as Lichtbogenleitblechen and conductors are not shown in Figure 1, there from known in the art.
- the housing of the service switching device according to Fig. 1 is constructed in the so-called shell construction, that is, it is made of two housing half-shells along a circumferential shock edge composed. Both housing halves are held together by fasteners, usually by rivet elements, screws or snap hooks. In the illustration of Fig. 1, only a half-shell is shown, the counterpart that would complete the housing is not shown.
- the space between the rear front side 32, the attachment side 6, and the broad side 31 is referred to here as a terminal connection chamber 18.
- a terminal connection chamber 18 In the illustration according to FIG. 1 on the left, it is open to the narrow side of the housing 3 and partially to the rear front side 32. The conclusion of the housing to these sides is made by inserting the guide member 24 and the terminal cover 22, as will be described in more detail below.
- a screwless terminal connection 10 In the terminal connection space a screwless terminal connection 10 is mounted. It comprises a clamping frame 101 with a clamping window 102, in which a clamping spring 12 is inserted.
- the clamping spring 12 has two clamping legs, each of which can press an inserted terminal conductor by clamping against a clamping edge of the clamping frame 101, as known in principle from the prior art.
- the terminal connection space 18 is separated with the housing closed to the rest of the housing interior through partitions, of which in the illustration of Figure 1 is a designated by the reference numeral 181, separated.
- the terminal connection space 18 is covered toward the narrow side and toward the rear front side 32 by a terminal cover part 22.
- the terminal cover 22 also fulfills the function as an actuating means for the clamping spring 12 in addition to the cover function.
- the terminal cover part 22 is formed approximately L-shaped. It has a long leg 221 and a short leg 222. At the free end of the long leg 221 is an eyelet 223. With this eyelet 223, the terminal cover 22 on a housing fixed pin 5, which near the attachment side 6 and near the narrow side of Housing is attached, be postponed. The terminal cover member 22 is then pivotally connected to the housing, wherein the pin 5 serves as a pivot axis.
- FIGS. 2 and 3 show the housing with the terminal cover part 22 pivotally attached thereto on the pin 5.
- connection surface 261 Approximately centrally in the long leg 221 there is a connection surface 261, which is oriented perpendicular to the longitudinal extension direction of the long leg 221. In the pad there are two connection openings 26. These are elongated oval and larger than the outer diameter of the largest conductor end to introduce. From the pad 261 toward the free end of the long leg 221, it is formed by a termination plate 224. At the free end of the long leg 221 opposite the pivot axis, the terminal cover part 221 has a pressure surface 225, with which the terminal cover part 221 is manually counter to the restoring force of the
- Clamping spring 12 counterclockwise in the direction of the housing interior can be pivoted out.
- At the pivot axis opposite free end of the long leg 221 of the short leg 222 is further formed as a cover plate.
- the clamping spring 12 presses with one of its spring arms against the left end 262 of the connection surface 261.
- the restoring spring force of the clamping spring 12 causes the terminal cover part 22 to be pivoted clockwise. It is thereby held in its home position, in which the end plate 224 terminates the terminal connection space 18 on the narrow side toward the mounting side, and the short leg 221 closes the terminal connection space 18 on the rear front side in addition to that with the housing connected part of the rear front 32nd
- a guide part 24 is provided, which is fixedly connected to the housing. It is also L-shaped in the embodiment shown in FIG. It has a first leg 241 in which two adjacent guide channels 25 are located.
- the guide channels 25 have a closed, circular cross-sectional contour, with an inner diameter that is matched to the outer diameter of the connecting conductor 14 to be inserted, so that the connecting conductors 14 to be introduced are well guided in the guide channels 25.
- Via lateral pins 242 which engage in corresponding blind holes 34 on the housing broadside, and latch hooks 243, the guide member 24 is connected to the housing 3.
- the mutual position of the guide part 24 relative to the terminal cover part 22 is such that the first limb 241 of the guide part 24 with the guide channels 25 in the insertion direction of the connection leads lies above the connection surface 261 of the terminal cover part 22 with the connection openings 26, both overlapping.
- the guide member 24 does not change its position, but the terminal surface 162 of the terminal cover member 22 pivots under the first leg 241 of the guide member 24.
- Connecting conductors, which are introduced in the guide channels 25, are thus retained by the guide part 24 when the terminal cover part 22 is pivoted.
- the connection openings 26 are dimensioned so long that the terminal ends of the inserted connection conductors can not hinder pivoting of the terminal cover part.
- connection conductor 14 is inserted here, it is held in the guide channel 25, while the terminal cover 22 is pivoted under the guide member 24 into the housing inside and thereby acts on the clamping leg of the clamping spring 12 in the direction of opening the terminal, so that the connection conductor between the free leg of the clamping spring and the clamping frame can be clamped.
- a second leg 244 is formed, which extends in the direction of the front side of the housing and forms a further front part of the housing cover on the narrow side, see FIGS. 2 and 3.
- a web 245th is formed, which extends in the direction of the front side of the housing and forms a further front part of the housing cover on the narrow side, see FIGS. 2 and 3.
- a curved sliding surface 246 is further formed. This also points into the interior of the housing and serves to guide the terminal cover 22 during its pivoting into the housing interior.
- the guide member 24 is formed in the form of a box open on one side, the side surfaces are latched by means of locking nubs 247 in corresponding locking recesses 35 in the inside of the housing broad sides. Thereby, the guide member 24 of this embodiment is also firmly connected to the housing. A front side 248 the guide member 24 is extended down to the mounting side. If the guide member 24 is inserted into the housing, then forms this front side 248 of the guide member then a part of the rear narrow side of the housing.
- the second leg 244 of the terminal cover 22 is then in the assembled state inside on the front side 248 of the guide member 24, see Figures 6 to 8.
- the guide channels 25 in the guide member 24 here have a partially open cross-sectional contour, they have a segment-like opening with an opening angle less than 180 °.
- connection conductors 14 are held in the guide channels 25.
- the pad 261 of the terminal cover part 22 is shorter than the corresponding pad of the terminal cover part as shown in FIGS. 1 to 4.
- the shortening is approximately on the order of magnitude of the thickness of the front side 248 of the guide part 24, see FIG. 7, because the second leg 244 in the embodiment according to FIGS. 5 to 8 is still inside the housing by this thickness.
- the pivot axis of the terminal cover part gets further into the housing interior, compared with the first embodiment according to FIGS. 1 to 4.
- the short leg 222 of the terminal cover part 22 can thereby become shorter.
- the guide member 24 and the terminal cover 22 can be made in a very favorable manner as injection molded parts made of insulating plastic.
Landscapes
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Breakers (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008049326 | 2008-09-29 | ||
PCT/EP2009/006726 WO2010034430A1 (en) | 2008-09-29 | 2009-09-17 | Installation switching device having a screwless clamp terminal |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2329564A1 true EP2329564A1 (en) | 2011-06-08 |
EP2329564B1 EP2329564B1 (en) | 2015-07-22 |
Family
ID=41258969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09778582.8A Active EP2329564B1 (en) | 2008-09-29 | 2009-09-17 | Installation switching device having a screwless clamp terminal |
Country Status (6)
Country | Link |
---|---|
US (1) | US20110209972A1 (en) |
EP (1) | EP2329564B1 (en) |
CN (1) | CN102187520B (en) |
CA (1) | CA2738441A1 (en) |
DE (1) | DE102009041636A1 (en) |
WO (1) | WO2010034430A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010047170B4 (en) | 2010-09-30 | 2019-10-10 | Abb Ag | Installation switching device with a Steckklemmvorrichtung |
DE102010050870B4 (en) | 2010-09-30 | 2019-12-05 | Abb Ag | Low-voltage switching device with a plug-in terminal device |
US9184013B2 (en) * | 2013-06-21 | 2015-11-10 | General Electric Company | Conductor guide member for a circuit breaker terminal assembly |
DE102013108952A1 (en) * | 2013-08-20 | 2015-03-12 | Phoenix Contact Gmbh & Co. Kg | Actuator and terminal |
DE102015100823B4 (en) * | 2015-01-21 | 2021-12-09 | Phoenix Contact Gmbh & Co. Kg | Electrical connection terminal |
DE102015104270A1 (en) * | 2015-03-23 | 2016-09-29 | Eaton Electrical Ip Gmbh & Co. Kg | Contacting device for contacting an electrical conductor to an electrical conductor |
DE102016110174A1 (en) * | 2015-07-10 | 2017-01-12 | Abb Schweiz Ag | Connecting device with plug-in terminal |
CA2937325C (en) * | 2015-08-13 | 2023-10-10 | Layerzero Power Systems, Inc. | Circuit breaker terminal cover and strip of terminal covers |
JP6733368B2 (en) * | 2016-06-29 | 2020-07-29 | オムロン株式会社 | Terminal connection mechanism and switch |
EP3389067B1 (en) * | 2017-04-11 | 2019-12-11 | Microelettrica Scientifica S.p.A. | High speed circuit breaker for industrial and railways applications |
JP6777114B2 (en) * | 2018-04-20 | 2020-10-28 | 富士電機機器制御株式会社 | Connection terminal structure of electrical equipment |
CN112904225B (en) * | 2021-01-05 | 2021-12-03 | 珠海格力电器股份有限公司 | Fault detection system of actuator |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2943244A (en) * | 1954-02-03 | 1960-06-28 | Ite Circuit Breaker Ltd | Panelboard |
JPS5417094Y2 (en) * | 1973-12-05 | 1979-07-03 | ||
DE3226128C1 (en) * | 1982-07-13 | 1984-03-08 | Karl Lumberg GmbH & Co, 5885 Schalksmühle | Terminal block |
US4759726A (en) * | 1985-08-13 | 1988-07-26 | Reed Devices, Inc. | Screwless type electrical terminal block |
US5973914A (en) * | 1997-03-27 | 1999-10-26 | Siemens Energy & Automation, Inc. | Circuit breaker hold-down |
DE19823648C1 (en) * | 1998-05-27 | 1999-11-04 | Metz Albert Ria Electronic | Connector, esp. for circuit boards, developed to be simple to operate, to be of simple construction and to be held stable in the open position |
JP2000306618A (en) * | 1999-04-23 | 2000-11-02 | Matsushita Electric Works Ltd | Quick connection terminal device |
US6307456B1 (en) * | 1999-12-10 | 2001-10-23 | General Electric Company | Light industrial circuit breaker terminal cover |
EP1128471B1 (en) * | 2000-02-21 | 2007-01-03 | Hager Electro S.A. | Conductor guiding device to be connected to an electrical modular apparatus |
DE10023851A1 (en) * | 2000-05-16 | 2001-11-22 | Moeller Gmbh | Connector clamp for low voltage switchgear, comprises spring clamp fitted in module which is secured in retention shaft of connector clamp |
JP4527242B2 (en) * | 2000-05-26 | 2010-08-18 | Idec株式会社 | Connected device |
ES1047527Y (en) * | 2000-11-03 | 2001-09-01 | Codina M Cristina Moret | BLOCK FOR DRINKING OF DRIVER TERMINALS. |
DE20101435U1 (en) * | 2001-01-26 | 2002-06-06 | Abl Sursum Bayerische Elektroz | Electrical device with connections for single wire and busbar |
FR2875944B1 (en) * | 2004-09-27 | 2006-12-15 | Legrand Sa | APPARATUS COMPRISING A CONNECTION BLOCK |
US7335050B2 (en) * | 2005-07-01 | 2008-02-26 | Blazing Products, Inc. | Electrical connector for use in connecting wires |
JP4587994B2 (en) * | 2006-08-10 | 2010-11-24 | 三菱電機株式会社 | Circuit breaker |
DE102006047254B3 (en) | 2006-10-06 | 2008-05-21 | Abb Ag | Installation switching device e.g. line safety switch, has opening covered by covering part pivotably mounted on housing, where part has connecting area with number of connection openings that correspond to number of conductors |
DE102006049772B4 (en) * | 2006-10-21 | 2008-09-04 | Abb Ag | Service switching device |
EP1914839B1 (en) * | 2006-10-21 | 2010-12-08 | Abb Ag | Installation switching device |
FR2909227B1 (en) * | 2006-11-28 | 2009-04-03 | Legrand France | AUTOMATIC ELECTRICAL CONNECTION TERMINAL. |
-
2009
- 2009-09-17 EP EP09778582.8A patent/EP2329564B1/en active Active
- 2009-09-17 CN CN200980139334.4A patent/CN102187520B/en not_active Expired - Fee Related
- 2009-09-17 CA CA2738441A patent/CA2738441A1/en not_active Abandoned
- 2009-09-17 WO PCT/EP2009/006726 patent/WO2010034430A1/en active Application Filing
- 2009-09-17 DE DE102009041636A patent/DE102009041636A1/en not_active Withdrawn
-
2011
- 2011-03-29 US US13/074,570 patent/US20110209972A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2010034430A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN102187520B (en) | 2013-08-21 |
EP2329564B1 (en) | 2015-07-22 |
DE102009041636A1 (en) | 2010-04-15 |
CN102187520A (en) | 2011-09-14 |
CA2738441A1 (en) | 2010-04-01 |
WO2010034430A1 (en) | 2010-04-01 |
US20110209972A1 (en) | 2011-09-01 |
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