EP2548264B1 - Élément de raccordement pour un appareil de connexion - Google Patents

Élément de raccordement pour un appareil de connexion Download PDF

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Publication number
EP2548264B1
EP2548264B1 EP10722940.3A EP10722940A EP2548264B1 EP 2548264 B1 EP2548264 B1 EP 2548264B1 EP 10722940 A EP10722940 A EP 10722940A EP 2548264 B1 EP2548264 B1 EP 2548264B1
Authority
EP
European Patent Office
Prior art keywords
press
connection
workpiece
connection element
thread
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.)
Revoked
Application number
EP10722940.3A
Other languages
German (de)
English (en)
Other versions
EP2548264A1 (fr
Inventor
Andreas Leitl
Frank Rümpler
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.)
Siemens AG
Original Assignee
Siemens AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=43417110&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2548264(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP2548264A1 publication Critical patent/EP2548264A1/fr
Application granted granted Critical
Publication of EP2548264B1 publication Critical patent/EP2548264B1/fr
Revoked 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
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5855—Electric connections to or between contacts; Terminals characterised by the use of a wire clamping screw or nut
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending

Definitions

  • the invention relates to a connection element for a switching device with a terminal bracket and a screw with connection plate.
  • connection screws The frictional connection between a connecting cable and a switching device, in particular a low-voltage switching device is realized, among other things with connection screws.
  • the thread for these screws is formed inexpensively in a passage in the connection part.
  • FIG. 1 shows a connecting bracket 1, which has a U-shaped portion 2 and an L-shaped portion 3.
  • a leg 4 of the L-section 3 a bore 5 is arranged with an internal thread 6.
  • This internal thread 6 serves to receive a screw 7 introduced from above with a connecting disk 8.
  • the connecting parts use electrically good conducting materials with low mechanical strength values. If threads are formed in these materials as described above, the thread strengths for the connection parts are insufficient. There is also the possibility that when connecting wires unwanted bending of the connecting parts occurs.
  • connection element for a switching device
  • a connection element for a switching device
  • the positioning of this nut takes place here by means of a corresponding contour in the housing or by an additional part, which is additionally mounted in the housing.
  • This embodiment is from the Fig. 2 out.
  • a nut 9 is arranged, through which the screw 7 is guided.
  • a contour 10 for positioning the nut 9 is a contour 10, which is formed either as an additional part or as a molding in the housing.
  • the disadvantage of this embodiment is that an additional part for positioning the nut is needed, which also requires additional space.
  • the EP 0 559 585 A1 discloses a connection element for a switching device with a terminal bracket and a screw with connection plate, wherein the screw is fixed by a Einpressteil the terminal bracket and wherein the Einpressteil has a bore which is at least partially threaded.
  • the object of the present invention is to provide a connection element for a switching device, which provides a secure thread resistance for the connection parts and also process technology allows easy handling.
  • connection element having the features of patent claim 1.
  • connection element for a switching device with a terminal bracket having a bore, and a screw with connection plate is characterized in that the screw is fastened by a Einpressteil, in particular with a thread on the terminal bracket.
  • a connection element instead of the thread passage.
  • this Hole is pressed in the following a Einpressteil with a thread, preferably an internal thread for the terminal screw.
  • a Einpressteil with an external thread is conceivable, which serves as a threaded bolt and on which then a nut is screwed. In this case, the screw with the Einpressteil is made in one piece.
  • connections are made here between different components via press-fit parts, which are pressed in the workpiece to form connections with large connection and holding forces.
  • Such Einpressmaschine are also used to control individual components and cost-effectively connect with each other. Due to the controlled compression of the press-fit parts provided for the connection, the compounds achieved with them can also meet far-reaching requirements.
  • Einpressmaschine can be inserted with different injection forces in a workpiece, so that they can withstand especially large tensile or compressive forces.
  • the press-fit part can sometimes also act on high rotational forces or torques, which lead to undesired twisting of the press-fit part if the insert part is insufficiently anchored in the workpiece ,
  • the press-fit parts according to the invention are provided with at least one knurl which has an arrangement of material teeth or material grooves surrounding the press-fit part.
  • the knurls intersect when pressing a Einpressteil in a workpiece in the wall of a recess provided for pressing and thus prevent upon application of the compressed press-fit with a torque twisting thereof in the recess.
  • the material flow must be made for a secure pressing of the press-fit in the workpiece so that sufficient material of the workpiece between the teeth or Riefen the knurling flows in and thus fixed the Einpressteil.
  • This material flow is dependent on a large number of predetermined material parameters, including, for example, the hardness and toughness of the material of the workpiece.
  • the Einpressteil in particular a press-in nut has a bore which is at least partially provided with a thread, in particular an internal thread. This thread allows the inclusion of a screw with washer or nut, can be fixed through the possible connection lines.
  • a toothed ring of cutting teeth is arranged around the bore.
  • An essential idea of the invention is that the inserted and pressed into the recess of the workpiece shaft of the press-in part has at least two different Einpresskonturen.
  • the Einpresskonturen are here around the shaft encircling teeth, grooves or material projections.
  • the provision of two different Einpresskonturen basically allows the Einpressdimensionen or Einpressgeometrien tune better on the flow behavior of the material of the workpiece, so that when pressing the Einpressteils in the recess of the workpiece better engagement of the material of the workpiece in the teeth or grooves or the material protrusions of Pressing contours is possible.
  • the press-in contours may in particular be arranged such that an engagement of the material of the workpiece as a result of the material deformation At different times during the pressing takes place and consequently different material sections with different injection contours come into engagement.
  • the forms of compression according to the invention may include pressing the insert into a recess of a workpiece, wherein the connection between the insert and the workpiece results from a material flow of the insert and / or the workpiece as a result of the insertion process.
  • a pressing may be included, in which the press-in part mechanically formed after the insertion of the press-fit into the recess of the workpiece, in particular a shank is widened, so that a connection between press-fit and workpiece results.
  • a pressing may be included, in which the workpiece is mechanically formed after inserting the press-fit into the recess of the workpiece, so that as a result of the material flow of the material of the workpiece in attachment areas of the press-fit results in a connection between press-fit and workpiece.
  • all mixed forms of this injection mold can also be included.
  • the Einpressteil may be formed in particular cylindrical for this process. However, any other fit for the Einpressteil is conceivable.
  • the press-in part is pressed by at least two different press-in contours on the connection bracket.
  • the provision of two different Einpresskonturen basically allows the Einpressdimensionen or Einpressgeometrien tune better on the flow behavior of the material of the workpiece, so that when pressing the Einpressteils in the recess of the workpiece better engagement of the material of the workpiece in the teeth or Scoring or the material protrusions of Einpresskonturen is made possible.
  • the at least two press-in contours are offset from one another by a non-knurled section of the shank, in particular by a non-knurled groove.
  • material can also flow into the non-knurled section of the shaft or into the non-knurled groove and thus permits targeted mechanical influencing and control of the material deformation during the pressing.
  • the non-knurled portion of the shank or the non-knurled groove can thus improve the engagement of the material of the workpiece in one of the at least two knurls due to the material deflection.
  • the material flowing into the non-knurled portion of the shank or into the non-knurled groove secures the press-in part by an improved holding force with respect to tensile and compressive forces acting on the press-in part. Accordingly, it is also possible to ensure the anchoring of the press-in part in the workpiece only on the basis of the non-knurled portion of the shaft or in the non-knurled groove material.
  • the Einpresskonturen are formed as a cylindrical extension or as a sprocket of cutting teeth. Due to these different injection contours, it is basically possible to better tune the injection dimensions or injection geometries to the flow behavior of the material of the workpiece, so that during pressing of the insert into the recess of the workpiece better engagement of the material of the workpiece in the teeth or grooves or the material protrusions the Einpresskonturen is enabled.
  • the press-in contours may in particular be arranged such that an engagement of the material of the workpiece as a result of the material deformation takes place at different times during the pressing and consequently different material sections with respectively different press-in contours engage.
  • the pressed-in part with thread and the connecting bracket are the same temperature during the pressing process.
  • the material of the pressed-in part with thread would contract somewhat or would be slightly widened by an increase in temperature of the connecting bracket.
  • the workpieces do not have to be subjected to a temperature change.
  • the present invention is characterized in that within the cost-effective connection production, the connecting element according to the invention including the press-in part is completely finished with a thread and only a part is mounted in the device assembly. This is associated with a cost reduction for machines, assembly processes and warehousing. Due to the corresponding shape of the pressed-in part with a thread for the terminal screw, bending of the connecting element when connecting the connecting wire is prevented. The thread strength of the connection point thus corresponds to the specifications.
  • Fig. 1 shows a connecting bracket 1 of the prior art, which has a U-shaped portion 2 and an L-shaped portion 3.
  • a leg 4 of the L-section 3 a bore 5 is arranged with an internal thread 6.
  • This internal thread 6 serves to receive a screw 7 introduced from above with a connecting disk 8.
  • the connecting parts use electrically good conducting materials with low mechanical strength values. If threads are formed in these materials as described above, the thread strengths for the connection parts are insufficient. There is also the possibility that when connecting wires unwanted bending of the connecting parts occurs.
  • FIG. 2 shows a further embodiment of a connecting bracket with screw from the prior art.
  • a connecting bracket 1 is shown with a U-shaped portion 2 and an L-shaped portion 3, which has a bore 5 in a leg 4 of the connecting bracket 1, through which a screw 7 can be inserted with a connecting plate 8.
  • a nut 9 is arranged, through which the screw 7 is guided.
  • a contour 10 is formed either as an additional part or training in the housing.
  • Fig. 3 shows a connecting element 11 according to the invention with a Einpressteil 12 threaded.
  • the connecting element 11 according to the invention has a connecting bracket 13, which has a U-shaped portion 14 and an L-shaped portion 15 attached thereto.
  • the L-shaped portion 15 has a leg 16, in which a bore 16a for receiving a screw 17th is trained.
  • the screw 17 is guided through a connecting disk 18, the bore 16a in the leg 16 of the L-shaped portion 15 of the connecting bracket 13 and by the press-in part 12.
  • the press-in part 12 is pressed on the opposite side to the screw 17 in the leg 16 of the L-shaped portion 15 in the connection element 11.
  • the press-in part 12 is preferably cylindrical and has an annular body 19 with an end face region 20, an outer circumferential surface 21, a bore 23 provided at least in sections with an internal thread 22 and a seat surface region 24.
  • the Einpressteil 12 also has Einpresskonturen formed as a ring in the form of a cylindrical extension 25 in which the thread 22 is arranged, as well as in the form of a ring gear 26 which is arranged around the cylindrical extension 25 and rests on the Wegzan Scheme 24.
  • Fig. 5 the press-in part 12 according to the invention is shown with thread 22.
  • Fig. 5 shows the arranged around the thread 22 cylindrical extension 25 and the ring gear 26, which serve as Einpresskonturen.
  • Fig. 6 shows the Einpressteil 12 after the press-in process in a workpiece.
  • this is the connecting bracket 13.
  • the connecting bracket 13 In the Fig. 6 is shown how attach the material of the connecting bracket 13 by the Einpresskonturen in the form of the cylindrical extension 25 and the ring gear 26 to the outer contours of the press-12. By this engagement of the workpiece material in the Einpresskonturen the press-in a sufficient rotational fixation is ensured.
  • connection element according to the invention including the press-in part is completely finished with an internal thread and only a part is mounted in the device assembly. This is associated with a cost reduction for machines, assembly processes and warehousing. Due to the corresponding shape of the pressed-in part with a thread, in particular an internal thread for the connection screw, the bending of the connection element when connecting the connecting wire is prevented. The thread strength of the connection point thus corresponds to the specifications.

Landscapes

  • Automatic Assembly (AREA)
  • Connection Of Plates (AREA)
  • Clamps And Clips (AREA)
  • Dowels (AREA)
  • Power Conversion In General (AREA)

Claims (8)

  1. Elément de raccordement (11) pour un appareil de commutation avec un étrier de raccordement (13) et un élément de vissage (17) avec un disque de raccordement (18), dans lequel l'élément de vissage (17) est fixé par le biais d'une pièce d'insertion (12) à l'étrier de raccordement (13), dans lequel la pièce d'insertion (12) présente un alésage (23) qui est doté au moins partiellement d'un filetage (22), caractérisé en ce qu'une couronne dentée (26) composée de dents coupantes est disposée autour de l'alésage (23).
  2. Elément de raccordement (11) selon la revendication 1, caractérisé en ce que la pièce d'insertion (12) est configurée de manière cylindrique.
  3. Elément de raccordement (11) selon l'une des revendications précédentes, caractérisé en ce que la pièce d'insertion (12) est insérée par le biais d'au moins deux contours d'insertion différents au niveau de l'étrier de raccordement (13).
  4. Elément de raccordement (11) selon l'une des revendications précédentes, caractérisé en ce que les contours d'insertion sont configurés en tant que prolongement cylindrique (25) et couronne dentée (26) composés de dents coupantes.
  5. Elément de raccordement (11) selon l'une des revendications précédentes, caractérisé en ce que la pièce d'insertion (12) et l'étrier de raccordement (13) sont à la même température lors du processus d'insertion.
  6. Elément de raccordement (11) selon l'une des revendications précédentes, caractérisé en ce que l'élément de vissage (17) et la pièce d'insertion (12) sont configurés d'un seul tenant.
  7. Elément de raccordement (11) selon l'une des revendications précédentes, caractérisé en ce que la pièce d'insertion (12) présente un filetage interne.
  8. Elément de raccordement (11) selon la revendication 6, caractérisé en ce que la pièce d'insertion (12) présente un filetage externe.
EP10722940.3A 2010-05-20 2010-05-20 Élément de raccordement pour un appareil de connexion Revoked EP2548264B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2010/003103 WO2011144225A1 (fr) 2010-05-20 2010-05-20 Élément de raccordement pour un appareil de connexion

Publications (2)

Publication Number Publication Date
EP2548264A1 EP2548264A1 (fr) 2013-01-23
EP2548264B1 true EP2548264B1 (fr) 2016-08-24

Family

ID=43417110

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10722940.3A Revoked EP2548264B1 (fr) 2010-05-20 2010-05-20 Élément de raccordement pour un appareil de connexion

Country Status (5)

Country Link
EP (1) EP2548264B1 (fr)
KR (1) KR101615121B1 (fr)
CN (1) CN102906940B (fr)
BR (1) BR112012029330B1 (fr)
WO (1) WO2011144225A1 (fr)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA548068A (fr) 1957-10-29 W. Braendel Felix Garniture interieure pour monture de vis
US3000420A (en) 1958-03-14 1961-09-19 Spokes Albert Nut with recesses to receive metal of the workpiece
US3125146A (en) 1964-03-17 Sheet metal fasteners
US3234987A (en) 1962-05-18 1966-02-15 Stanley Works Self-piercing nut with attaching flange
DE1284170B (de) 1964-02-20 1968-11-28 Penn Engineering And Manufaktu Selbstsichernde Schraubenmutter
GB2013045A (en) 1978-01-13 1979-08-01 Bicc Burndy Ltd Electric connectors
DE3903424A1 (de) 1988-03-21 1989-11-30 Hermsdorf Keramik Veb Schutzleiteranschlussklemme, vorzugsweise fuer schutzkontaktsteckdosen mit seitlichem schutzkontakt
US5015205A (en) 1989-11-07 1991-05-14 Franks George J Jr Cable clamp
EP0559585A1 (fr) 1992-03-02 1993-09-08 Schneider Electric Sa Borne de raccordement à étrier d'épaisseur variable et à écrou serti
DE102005007203A1 (de) 2004-10-15 2006-04-20 Gustav Klauke Gmbh Kabelschuh mit Mutter bzw. Funktionsteil, Verfahren zur Herstellung eines solchen Kabelschuhs und Mutter
US20080146092A1 (en) 2006-12-14 2008-06-19 William Fillmore Taylor Printed circuit board connection
DE102008012997A1 (de) 2008-03-07 2009-09-17 Siemens Aktiengesellschaft Elektrische Anschlussklemme für einen Frequenzumrichter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2550886Y (zh) * 2002-06-24 2003-05-14 刘慧君 进出接线紧固端子
CN101030700A (zh) * 2007-04-06 2007-09-05 辽宁华冶集团发展有限公司 铜排自锁六角螺母

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA548068A (fr) 1957-10-29 W. Braendel Felix Garniture interieure pour monture de vis
US3125146A (en) 1964-03-17 Sheet metal fasteners
US3000420A (en) 1958-03-14 1961-09-19 Spokes Albert Nut with recesses to receive metal of the workpiece
US3234987A (en) 1962-05-18 1966-02-15 Stanley Works Self-piercing nut with attaching flange
DE1284170B (de) 1964-02-20 1968-11-28 Penn Engineering And Manufaktu Selbstsichernde Schraubenmutter
GB2013045A (en) 1978-01-13 1979-08-01 Bicc Burndy Ltd Electric connectors
DE3903424A1 (de) 1988-03-21 1989-11-30 Hermsdorf Keramik Veb Schutzleiteranschlussklemme, vorzugsweise fuer schutzkontaktsteckdosen mit seitlichem schutzkontakt
US5015205A (en) 1989-11-07 1991-05-14 Franks George J Jr Cable clamp
EP0559585A1 (fr) 1992-03-02 1993-09-08 Schneider Electric Sa Borne de raccordement à étrier d'épaisseur variable et à écrou serti
DE69303065T2 (de) 1992-03-02 1996-12-19 Schneider Electric Sa Verbinderklemme mit Sattel veränderlicher Dicke und mit eingefasster Mutter
DE102005007203A1 (de) 2004-10-15 2006-04-20 Gustav Klauke Gmbh Kabelschuh mit Mutter bzw. Funktionsteil, Verfahren zur Herstellung eines solchen Kabelschuhs und Mutter
US20080146092A1 (en) 2006-12-14 2008-06-19 William Fillmore Taylor Printed circuit board connection
DE102008012997A1 (de) 2008-03-07 2009-09-17 Siemens Aktiengesellschaft Elektrische Anschlussklemme für einen Frequenzumrichter

Also Published As

Publication number Publication date
BR112012029330B1 (pt) 2019-08-27
KR20130111961A (ko) 2013-10-11
CN102906940A (zh) 2013-01-30
KR101615121B1 (ko) 2016-04-25
CN102906940B (zh) 2016-01-20
WO2011144225A1 (fr) 2011-11-24
BR112012029330A2 (pt) 2016-07-26
EP2548264A1 (fr) 2013-01-23

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