EP4066319A1 - Anschlussklemme sowie elektronisches gerät - Google Patents
Anschlussklemme sowie elektronisches gerätInfo
- Publication number
- EP4066319A1 EP4066319A1 EP20808347.7A EP20808347A EP4066319A1 EP 4066319 A1 EP4066319 A1 EP 4066319A1 EP 20808347 A EP20808347 A EP 20808347A EP 4066319 A1 EP4066319 A1 EP 4066319A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- clamping
- clamping spring
- spring
- connection terminal
- clamping 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.)
- Pending
Links
- 239000004020 conductor Substances 0.000 claims abstract description 47
- 238000005452 bending Methods 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004080 punching Methods 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
- H01R4/48455—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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
- H01R9/24—Terminal blocks
- H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
Definitions
- Terminal as well as electronic device
- the present invention relates to a connection terminal for connecting an electrical conductor.
- the invention also relates to an electronic device with at least one such connection terminal.
- Connection terminals for electrical conductors are used to contact electrical conductors in a detachable manner.
- the object of the present invention is to specify an improved connection terminal for connecting an electrical conductor.
- the connection terminal has a housing, a clamping spring arranged in the housing, a current bar and a clamping lever, the clamping spring having a contact leg to elastically tension an electrical conductor to be connected against the current bar, the clamping lever being fastened to the housing
- the clamping lever can be pivoted about a pivot axis between an open position and a closed position, the contact leg having a through opening with a support section which penetrates the through opening of the contact leg and rests on a retaining leg of the clamping spring.
- the support portion serves to prevent bending or deformation of the clamping spring due to improper use, for example when a tool such as a screwdriver is inserted into the connection terminal.
- the support section can be formed on the housing.
- the support section also serves to guide and position the clamping spring relative to the housing. Accordingly, the clamping spring with the through opening can be pushed onto the support section so that the clamping spring can be positively positioned with the contact leg on the housing.
- an end section of the support section resting on the holding leg of the clamping spring has a curvature or rounding around which Adapt the shape of the support section at least partially to the different bending radii of the clamping spring to different tension conditions.
- the curvature or rounding can reduce wear on the spring compared to a sharp-edged support and also reduce the friction when the spring is deformed in contact with the support section.
- the tensioning mechanism formed from the clamping lever, the clamping spring and the associated support section can therefore be more smooth-running compared to sharp-edged or planar support solutions by providing the end-side curvature or rounding of the support section.
- the clamping spring can be enclosed on two sides by the housing, so that in particular no lateral opening of the housing is provided for mounting the clamping spring and the clamping spring can be mounted in the housing by being pushed onto the support section and then pushed in between two side housing walls of the housing.
- the support section can be provided on the current bar or be part of the current bar.
- the clamping lever has a driver and that the driver is assigned a tab of the clamping spring which is provided on the contact leg of the clamping spring. Because the tab that interacts with the driver is provided on the contact leg of the clamping spring, a particularly compact and robust design of the clamping spring can be provided within the connecting terminal.
- the tab is formed in one piece with the clamping spring and is punched out of the contact leg of the clamping spring, wherein the through opening can essentially correspond to the dimensions of the punched-out tab. In this way, the tab can be provided inexpensively and reliably as an integral part of the clamping spring.
- the tab is arranged so as to protrude freely between the contact leg and the retaining leg of the clamping spring, the contact leg and the retaining leg by a curved connecting section can be connected to each other. Consequently, the tab can be integrated as compactly as possible into an installation space provided for receiving the clamping spring.
- the connecting section between the contact limb and the holding limb can be an arc which defines an angle of less than 90 ° between the holding limb and the contact limb. Accordingly, sections of the contact leg and of the retaining leg adjacent to the arch can enclose an angle which is smaller than 90 °.
- the driver is at a distance from the tab when the clamping lever is in the closed position, and that the driver rests against the tab when the clamping lever is in the open position. In the closed position, it can be ensured in this way that the entire spring force of the spring clamp is available for tensioning a conductor in the direction of the current bar, and that part of the spring force is not lost due to contact with the driver. Accordingly, starting from the closed position of the clamping lever, the driver can initially exert an idle stroke until the driver comes into contact with the tab, the subsequent further opening movement causing the clamping spring to deform via the tab and the driver.
- the driver can, for example, be a mandrel or web which protrudes along the width direction of the clamping spring and is formed on the clamping lever.
- pivoting the clamping lever from the closed position into the open position can increase the distance between the current bar and the contact leg, the spring being able to be tensioned between the driver and a stop.
- a further clamping spring with a further clamping lever is provided in order to clamp a further electrical conductor to be connected in a resiliently elastic manner against the current bar.
- connection terminal is constructed mirror-symmetrically, allowing two conductors to be connected to be inserted into the connection terminal on both sides in order to enable an electrically conductive connection of the conductors to be connected.
- the clamping springs have end sections that rest against one another, the clamping spring, as far as the clamping lever is in the open position, being tensioned between the driver and the end section of the further spring and the further spring insofar as the further clamping lever is in the open position is clamped between the end section of the clamping spring and a driver of the further clamping lever.
- the clamping springs can then be mutually supported against one another within the connection terminal, so that compact integration of the clamping springs into the housing of the connection terminal is made possible.
- clamping levers assigned to the clamping springs also rest against one another in their open position in order to limit a pivoting path of the respective clamping lever in the open position.
- the clamping spring is a multi-curved band, in particular a spring steel band, wherein the band can have a constant width.
- the band has a constant width
- punching out the flap has the effect that the flap itself has a smaller width than the original band. Nevertheless, the total width of the clamping section from which the tab is punched out remains the same and continues to correspond to the width of the retaining leg.
- the width of a section of the clamping leg resting against a conductor to be connected corresponds to the width of the retaining leg.
- the current bar has a shoulder on which the contact leg rests, provided that the clamping lever is arranged in the closed position and no conductor is inserted into the housing in the area of the clamping lever. Because the clamping lever rests on the current bar in the closed position, conductors of different diameters can be inserted between the contact leg and the current bar, the contact leg being moved or displaced away from the current bar by the conductor end by the diameter of the conductor end and thus the conductor end is tensioned by the contact leg on the current bar.
- the opening between the current bar and the contact leg which is limited to accommodate the conductor, can accordingly automatically adapt to the diameter of the conductor to be contacted in each case.
- a conductor can thus be contacted with the current bar and fastened in the connection terminal without the clamping lever having to be moved from its closed position into the open position.
- the housing has a plastic or consists of a plastic.
- the clamping lever has a handle in order to enable the connection terminal to be actuated without tools and accordingly to enable electrical conductors to be connected and disconnected from the connection terminal without tools. It is also possible that the housing has a stop assigned to the clamping lever in order to limit a pivoting path of the clamping lever.
- connection terminal can be designed, for example, as a series terminal, block terminal or potential terminal.
- the object according to the invention is also achieved with an electronic device which can have at least one connection terminal which has been developed and further developed as described above.
- connection terminal according to the invention in a perspective view
- FIG. 1B shows the connecting terminal from FIG. 1A in a side view in a longitudinal section
- 1C shows a part of the housing of the connection terminal in a perspective view from above
- FIG. 1 D shows the connection terminal from FIG. 1 A in a side view
- FIG. 3 shows a clamping body in a perspective view from above
- FIG. 4 shows the connecting terminal from FIG. 1A in a side view in a longitudinal section with conductors and clamping bodies to be clamped in the closed position;
- FIG. 5A shows the connection terminal from FIG. 1A in a side view in one
- FIG. 5B shows the connection terminal from FIG. 1A in a side view in a longitudinal section with conductors and clamping bodies to be clamped in the closed position;
- Connection terminal in a side view in a longitudinal section.
- a connection terminal 100 for connecting an electrical conductor has a housing 110.
- a clamping spring 120 and a further clamping spring 130 are arranged in the housing 110.
- the connection terminal 100 has a clamping lever 140 which is assigned to the clamping spring 120.
- the connection terminal 100 has a further clamping lever 150, which is assigned to the further clamping spring 130.
- the connection terminal 100 has a current bar 160.
- the clamping lever 140 is fastened to the housing 110, the clamping lever 140 being pivotable about a pivot axis 141 between an open position and a closed position.
- the clamping lever 140 has a driver 142.
- a tab 122 of the clamping spring 120 is assigned to the driver 142.
- the tab 122 is provided on the contact leg 121 of the clamping spring 120.
- the further clamping lever 150 is fastened to the housing 110, the further clamping lever 150 being pivotable about a pivot axis 151 between an open position and a closed position.
- the further clamping lever 150 has a driver 152.
- a tab 132 of the further clamping spring 130 is assigned to the driver 152.
- the tab 132 is provided on the contact leg 131 of the further clamping spring 130.
- connection terminal 100 has a mirror-symmetrical structure, the geometry of the clamping spring 120 corresponding to the geometry of the clamping spring 130. Likewise the geometry of the clamping lever 140 corresponds to the geometry of the further clamping lever 150.
- the geometry of the clamping springs 120, 130 is described below using the clamping spring 120 with reference to FIG. 2 by way of example. Furthermore, the geometry of the clamping levers 140, 150 is described by way of example using the clamping lever 140 with reference to FIG. 3.
- Fig. 2 shows the clamping spring 120 taken by itself in a perspective view from above.
- the tab 122 is formed in one piece with the clamping spring 120 and has been punched out of the contact leg 121 of the clamping spring 120.
- the contact leg 121 has a through opening 123 corresponding to the dimensions of the punched-out tab 122.
- the tab 122 is arranged so as to protrude freely between the contact leg 121 and a retaining leg 124 of the clamping spring 120.
- the contact leg 121 and the holding leg 124 are connected to one another by a curved connecting section 125.
- the through opening 123 serves to position the clamping spring 120 on the housing 110.
- the housing 110 has a support section 111 which penetrates the through opening 123 of the contact leg 121 and rests on the retaining leg 124 of the clamping spring 120.
- the clamping spring 120 is a multi-curved band, the band having a constant width B1.
- the housing 110 likewise has a support section 112 which penetrates a through opening 133 of the clamping spring 130 and rests on a holding leg 134 of the clamping spring 130.
- the clamping spring 130 is a multi-curved band, the band having a constant width.
- the respective clamping spring 120, 130 can be pushed with its through opening onto the associated support section 111, 112, so that the respective clamping spring 120, 130 is positively positioned on the housing 110 with its contact leg 121, 131.
- the end of the support sections 111, 112 of the housing 110 have a curvature or rounding 115, 116 in order to at least partially approximate the shape of the support sections 111, 112 to adapt to the different bending radii of the clamping springs 120, 130 to different states of tension.
- the clamping springs 120, 130 are framed on two sides by the housing 110, so that in particular no lateral openings of the housing are provided for mounting the clamping springs 120, 130 and the clamping springs 120, 130 by being pushed onto the support sections 111, 112 and the associated pushing in can be mounted between two side housing walls 117, 118 of the housing 110 in the housing 110 (FIG. 1C).
- connection terminal 100 shows an example of improper use of the connection terminal 100, wherein a screwdriver 400 is inserted into the connection terminal.
- the support section 112 can prevent the clamping spring 130 from being deformed or destroyed.
- the clamping lever 140 has a handle 143 in order to enable manual actuation of the clamping lever 140 without tools.
- the clamping lever 140 In the area of the pivot axis 141, the clamping lever 140 has swivel feet 144, 145 which are positively connected to the housing 110 and enable the clamping lever 140 to be rotatably supported on the housing 110.
- the clamping lever 140 also has a stop surface 146 and a further stop surface 147.
- the driver 142 is at a distance A from the tab 122.
- the driver 142 rests against the tab 122.
- Pivoting the clamping lever 140 from the closed position into the open position causes a distance between the current bar 160 and the contact leg 121 to increase, the clamping spring 120 being tensioned between the driver 142 and a stop 136.
- the stop 136 is part of the clamping spring 130 and forms an end section 136 of the clamping spring 130.
- an end section 126 of the clamping spring 120 forms a stop 126 for the clamping spring 130.
- the clamping springs 120, 130 accordingly have end sections 126, 136 that bear against one another, the clamping spring 120, as far as the clamping lever 140 is in the open position, being tensioned between the driver 142 and the end section 136 of the further clamping spring 130, and the further clamping spring 136, insofar as the further clamping lever 150 is in the open position, is clamped between the end section 126 of the clamping spring 120 and the driver 152 of the further clamping lever 150.
- the clamping springs 120, 130 are thus supported against one another in abutment at the ends.
- the current bar 160 has a shoulder 161 on which the contact leg 121 rests, provided that the clamping lever 140 is arranged in the closed position and no conductor is inserted into the housing 110 in the area of the clamping lever 140.
- the current bar 160 has a further shoulder 162 on which the contact leg 131 rests as long as the clamping lever 150 is arranged in the closed position and no conductor is inserted into the housing 110 in the area of the clamping lever 150 (FIG. 1B).
- the conductors 200, 300 can be pushed into the connection terminal 100 while the clamping levers 140, 150 are in their closed position (cf. FIG. 4). Accordingly, the electrical conductor 200 is inserted with an end section 210 into an opening 113 of the housing 110 of the connecting terminal 100.
- an end section 310 of the conductor 300 can be inserted into an opening 114 of the housing 110 in order to be tensioned between the clamping leg 131 of the clamping spring 130 and the current bar 160.
- FIG. 5B shows a state in which both conductors 200, 300 are clamped with their end sections 210, 310 within the connecting terminal 100.
- the clamping levers 140, 150 can be opened before a conductor 200, 300 is inserted, as shown by way of example in FIG. 5A. As soon as the conductor ends 210, 310 are positioned in the respective housing openings 113, 114, the clamping levers 140, 150 are pivoted back from the open position shown in FIG. 5A into the closed position shown in FIG to contact one another via the current bar 160.
- the clamping lever 140 rests with its stop surface 147 on the housing 110.
- the clamping lever 150 rests against the housing 110 with a stop surface 157.
- the stop surface 146 of the clamping lever 140 is supported on a stop surface 156 of the clamping lever 150.
- clamping mechanism of the connection terminal 100 formed from the clamping levers 140, 150, the assigned clamping springs 120, 130 and the current bar 160 these components are shown separately in FIG. 6, the clamping lever 140 being shown in the closed position and the clamp lever 150 is shown in the open position.
- the driver 142 is spaced apart from the tab 122 according to the closed position of the clamping lever 140, and pivoting, as shown by way of example for the clamping spring 130 and the clamping lever 150 in the open position, causes the spring 130 to be tensioned.
Landscapes
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019132007.0A DE102019132007A1 (de) | 2019-11-26 | 2019-11-26 | Anschlussklemme sowie elektronisches Gerät |
PCT/EP2020/082341 WO2021104930A1 (de) | 2019-11-26 | 2020-11-17 | Anschlussklemme sowie elektronisches gerät |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4066319A1 true EP4066319A1 (de) | 2022-10-05 |
Family
ID=73476119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20808347.7A Pending EP4066319A1 (de) | 2019-11-26 | 2020-11-17 | Anschlussklemme sowie elektronisches gerät |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP4066319A1 (de) |
CN (1) | CN114747090A (de) |
DE (1) | DE102019132007A1 (de) |
WO (1) | WO2021104930A1 (de) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2935201B1 (fr) * | 2008-08-20 | 2010-09-24 | Legrand France | Borne de connexion electrique automatique |
DE102009008932A1 (de) * | 2009-02-13 | 2010-08-19 | Phoenix Contact Gmbh & Co. Kg | Elektrische Anschlussklemme |
DE102010024809B4 (de) * | 2010-06-23 | 2013-07-18 | Wago Verwaltungsgesellschaft Mbh | Anschlussklemme |
DE102012110895B4 (de) * | 2012-11-13 | 2015-03-26 | Wago Verwaltungsgesellschaft Mbh | Anschlussklemme |
DE102014114026B4 (de) * | 2014-09-26 | 2023-03-30 | Wago Verwaltungsgesellschaft Mbh | Leiteranschlussklemme und Verfahren zu deren Montage |
JP2017073284A (ja) * | 2015-10-07 | 2017-04-13 | Smk株式会社 | ケーブル接続用コネクタ |
JP6369793B2 (ja) * | 2015-10-07 | 2018-08-08 | Smk株式会社 | ケーブル接続用コネクタ |
DE102015119247A1 (de) * | 2015-11-09 | 2017-05-11 | Wago Verwaltungsgesellschaft Mbh | Verbindungsklemme |
DE102018110312A1 (de) * | 2018-03-28 | 2019-10-02 | Wago Verwaltungsgesellschaft Mbh | Leiteranschlussklemme |
DE202018101726U1 (de) * | 2018-03-28 | 2019-07-01 | Wago Verwaltungsgesellschaft Mbh | Leiteranschlussklemme, Klemmfeder einer Leiteranschlussklemme sowie Reihenklemme |
-
2019
- 2019-11-26 DE DE102019132007.0A patent/DE102019132007A1/de active Pending
-
2020
- 2020-11-17 WO PCT/EP2020/082341 patent/WO2021104930A1/de unknown
- 2020-11-17 EP EP20808347.7A patent/EP4066319A1/de active Pending
- 2020-11-17 CN CN202080081911.5A patent/CN114747090A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2021104930A1 (de) | 2021-06-03 |
CN114747090A (zh) | 2022-07-12 |
DE102019132007A1 (de) | 2021-05-27 |
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