| Title of Invention | POWER SWITCH, ESPECIALLY HIGH-CURENT SWITCH |
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| Abstract | The invention relates to a power switch, especially a high-current switch, comprising at least one pole unit (2) with a pole head (3) and a pole base (4) and a contact system (5) interposed therebetween, for switching a current that is guided via at least one first conductor rail (11) of the pole base (4) and at least one second conductor rail (13) of the pole head (3), the pole head (3) and the pole base (4) having respective connecting elements (10,12). The connecting elements (10,12) are configured to only connect respectively the at least one first conductor rail (11) and the at least one second conductor rail (13) to the contact system (5) to form current paths, at least one cooling body (14,15) is attached outside the current paths in a heat-conducting manner to the first and the second conductor rail (11,13) respectively, and fastening elements (16,19) of the pole unit (2) are attached outside the current paths to the conductor rails (11,13). |
| Full Text | Description Power switch, especially high-current switch The invention relates to a power switch, especially a high-current switch, comprising at least one pole unit with a pole head and a pole base and a contact system interposed therebetween, for switching a current that is guided via at least one first conductor rail of the pole base and at least one second conductor rail of the pole head, the pole head and the pole base having respective connecting elements. A power switch of this kind is disclosed in EP 1 32 6 2 62 A1 for example. The power switch disclosed there has a pole unit in the form of a pole armature with a pole head and a pole base as well as a contact system in the form of an interrupter unit. Both the pole head and the pole base of this power switch have connecting elements, the connecting elements being formed in one piece from aluminum and having the function of conducting the current to the contact system, cooling and mechanical fastening. The object of the present invention is to further develop a power switch of the kind mentioned in the introduction, which has improved characteristics with regard to current carrying capacity and thermal conductivity with a cost-effective design. According to the invention, this object is achieved with a power switch of the kind mentioned in the introduction in that the connecting elements are configured only to connect respectively the at least one first conductor rail and the at least one second conductor rail to the contact system to form current paths, - at least one cooling body is attached outside the current paths in a heat-conducting manner to the first and the second conductor rail respectively, and - fastening elements of the pole unit are attached outside the current paths to the conductor rails. In other words, both the pole head and the pole base of the power switch according to the invention are designed in a modular manner, as a result of which advantageously different materials can be selected in each case for the connecting elements as well as for the cooling bodies and the fastening elements, as a result of which the current carrying capacity of the power switch can easily be improved, as a material with the least possible resistance can be chosen for the connecting elements, whereas materials with a good thermal conductivity or a good mechanical strength can be chosen for cooling bodies and fastening elements. As a result, advantageously, both the pole head and the pole base are easily improved in respect of their characteristics with regard to current carrying capacity and thermal conductivity and, at the same time, have a cost-effective design. Advantageously, the cooling bodies have cooling ribs, which are aligned depending on the installed position of the power switch according to the invention to enable good convection. Accordingly, different embodiments of the cooling bodies are provided. In a preferred embodiment, the conductor rails and the connecting elements are made of copper. Copper is a material with a low resistance and is therefore particularly suitable for current carrying parts. The cooling bodies can be made of such materials, which have a good thermal conductivity, for example copper. In a preferred embodiment of the invention, the cooling bodies are designed in the form of cast aluminum parts. Advantageously, cast aluminum parts of this kind have a good thermal conductivity and at the same time are cost-effective. In an expedient development of the invention, the fastening elements are made of aluminum. Aluminum has an adequate mechanical strength and is cost-effective. The invention is described in more detail below based on the drawing and an exemplary embodiment with reference to the attached figure, which figure shows a power switch according to the invention in a cross-sectional view. Figure 1 shows a power switch 1 with three pole units, of which only one pole unit 2 is shown in the cross-sectional view. The pole unit 2 comprises a pole head 3 and a pole base 4 as well as a contact system 5 in the form of a vacuum switching tube 5 arranged between the pole head 3 and the pole base 4. The vacuum switching tube 5 has a fixed contact 6 and a moving contact 7. The moving contact 7 is connected to a drive unit 9 of the power switch by means of a drive rod 8, the drive unit 9 being designed to introduce a drive movement into the moving contact 7 of the vacuum switching tube 5 via the drive rod 8 to open and close the contact system 5. The moving contact 7 is electrically conductively connected to a first conductor rail 11 of the pole base 4 by means of a connecting element 10. The fixed contact 6 of the vacuum switching tube 5 is electrically WE CLAIM: 1. A power switch, especially a high-current switch, comprising at least one pole unit (2) with a pole head (3) and a pole base (4) and a contact system (5) interposed therebetween, for switching a current that is guided via at least one first conductor rail (11) of the pole base (4) and at least one second conductor rail (13) of the pole head (3), the pole head (3) and the pole base (4) having respective connecting elements (10,12), characterized in that - the connecting elements (10,12) are configured to only connect respectively the at least one first conductor rail (11) and the at least one second conductor rail (13) to the contact system (5) to form current paths, - at least one cooling body (14,15) is attached outside the current paths in a heat-conducting manner to the first and the second conductor rail (11,13) respectively, and - fastening elements (16,19) of the pole unit (2) are attached outside the current paths to the conductor rails (11,13). 2. The power switch as claimed in claim 1, wherein the conductor rails (11,13) and the connecting elements (10,12) are made of copper. 3. The power switch as claimed in claim 1 or 2, wherein the cooling bodies (14,15) are constructed in the form of cast aluminum parts. 4. The power switch as claimed in one of claims 1 to 3, wherein the fastening elements (16,19) are made of aluminum. ABSTRACT TITLE: POWER SWITCH, ESPECIALLY HIGH-CURRENT SWITCH The invention relates to a power switch, especially a high-current switch, comprising at least one pole unit (2) with a pole head (3) and a pole base (4) and a contact system (5) interposed therebetween, for switching a current that is guided via at least one first conductor rail (11) of the pole base (4) and at least one second conductor rail (13) of the pole head (3), the pole head (3) and the pole base (4) having respective connecting elements (10,12). The connecting elements (10,12) are configured to only connect respectively the at least one first conductor rail (11) and the at least one second conductor rail (13) to the contact system (5) to form current paths, at least one cooling body (14,15) is attached outside the current paths in a heat-conducting manner to the first and the second conductor rail (11,13) respectively, and fastening elements (16,19) of the pole unit (2) are attached outside the current paths to the conductor rails (11,13). |
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4268-KOLNP-2008-(18-09-2013)-ABSTRACT.pdf
4268-KOLNP-2008-(18-09-2013)-ANNEXURE TO FORM 3.pdf
4268-KOLNP-2008-(18-09-2013)-CLAIMS.pdf
4268-KOLNP-2008-(18-09-2013)-CORRESPONDENCE.pdf
4268-KOLNP-2008-(18-09-2013)-OTHERS.pdf
4268-KOLNP-2008-(18-09-2013)-PETITION UNDER RULE 137.pdf
4268-kolnp-2008-correspondence.pdf
4268-kolnp-2008-description (complete).pdf
4268-kolnp-2008-EXAMINATION REPORT.pdf
4268-kolnp-2008-GRANTED-ABSTRACT.pdf
4268-kolnp-2008-GRANTED-CLAIMS.pdf
4268-kolnp-2008-GRANTED-DESCRIPTION (COMPLETE).pdf
4268-kolnp-2008-GRANTED-DRAWINGS.pdf
4268-kolnp-2008-GRANTED-FORM 1.pdf
4268-kolnp-2008-GRANTED-FORM 2.pdf
4268-kolnp-2008-GRANTED-FORM 3.pdf
4268-kolnp-2008-GRANTED-FORM 5.pdf
4268-kolnp-2008-GRANTED-SPECIFICATION-COMPLETE.pdf
4268-kolnp-2008-international publication.pdf
4268-kolnp-2008-INTERNATIONAL SEARCH REPORT & OTHERS.pdf
4268-kolnp-2008-international search report.pdf
4268-kolnp-2008-pct request form.pdf
4268-kolnp-2008-PETITION UNDER RULE 137.pdf
4268-kolnp-2008-specification.pdf
| Patent Number | 260085 | |||||||||
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| Indian Patent Application Number | 4268/KOLNP/2008 | |||||||||
| PG Journal Number | 14/2014 | |||||||||
| Publication Date | 04-Apr-2014 | |||||||||
| Grant Date | 31-Mar-2014 | |||||||||
| Date of Filing | 21-Oct-2008 | |||||||||
| Name of Patentee | SIEMENS AKTIENGESELLSCHAFT | |||||||||
| Applicant Address | WITTELSBACHERPLATZ 2, 80333 MUNCHEN | |||||||||
Inventors:
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| PCT International Classification Number | H01H 9/52 | |||||||||
| PCT International Application Number | PCT/DE2006/000851 | |||||||||
| PCT International Filing date | 2006-05-10 | |||||||||
PCT Conventions:
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