Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
  • H01T1/00—Details of spark gaps
  • H01T1/14—Means structurally associated with spark gap for protecting it against overload or for disconnecting it in case of failure

Definitions

• the invention relates to an overvoltage protection element.
• Overvoltage protection elements are often used to protect electrical and electronic equipment against overvoltages that can be transmitted through the electrical supply network. Such overvoltages can be caused in particular by lightning discharges, which, for example, via grounding system in the infrastructure of the
• connecting means comprising at least two connectors
• the device further comprising a lightning protection cell, the first pole of which is directly connected to a first one of the connectors.
• a second pole of the cell is connected to a first conductor section.
• the device has a second
• Fuses on to maintain a stable slide in a working position of the device in electrical contact with the conductor portions, wherein the means serve to permanently push the slider in an open position of the device in which the slider no longer contact with the two conductor portions Has.
• the invention is therefore based on the object, a
• Overvoltage protection element to provide, by means of which both surge currents with high amplitudes
• the overvoltage protection element according to the invention has a contact tongue and a contact element spaced from the contact element, wherein a
• Connecting element is provided, which is convertible into a first position and in a second position, wherein in the first position, the connecting element to the
• the connecting element serves to be able to establish a contact between the contact tongue and the contact element arranged at a distance from the contact tongue, wherein in the contacting state, in the first position of the connecting element, the connecting element bears against a surface of the contact tongue and against a surface of the contact element the connecting element preferably at least partially to the contour of
• the surface of the contact tongue and the surface of the contact element against which the connecting element abuts can lie in a plane relative to one another, so that the connecting element, like a kind of bridge, covers the surface of the contact tongue and the surface of the contact element
• the thermally separable connection is preferably a large area between the connecting element and the
• the thermally dissociable compound reaches a temperature which is equal to the melting temperature, then melts the thermally separable connection, so that the
• Connecting element is released and moves from the first position to a second position in which the
• the connecting element can be U-shaped, for example, so that the connecting element at least partially surrounds one or more edge regions of the contact tongue and / or the contact element.
• a clearing element is provided, wherein the clearing element between the contact tongue and the contact tongue spaced apart contact element is arranged to be movable.
• the clearing element is used in a separation of the
• the reaming element is preferably moved or moved during a movement of the connecting element from the first position to the second position within the gap between the contact tongue and the contact element in order to clean the gap, preferably from the thermally separable connection.
• this is the
• Reaming element moves from the contact element towards the contact tongue within the gap, in order to achieve the most complete removal of the remainders of the thermally dissociable compound in the gap.
• the clearing element can be designed, for example, as a clearing finger or as a clearing blade. If the clearing element is designed as a clearing finger, then the clearing element is at a separation of the contact by a transfer of the
• the reaming element is preferably arranged on the connecting element.
• the reaming element can be integrally connected to the connecting element or else arranged and attached as a separate component to the connecting element. Is the clearing element on the
• the clearing element is movable independently of the connecting element.
• the connecting element for example, the
• Reaming element after the connecting element has been moved from the first position to the second position, are moved into the gap between the contact tongue and the contact element. This is a decoupling of
• Clearing element possible.
• a second spring element or a lever may be provided which is connected to the broaching element.
• the clearing element is formed from a non-conductive material.
• the clearing element is made of a
• the connecting element is trough-shaped
• the connecting element is preferably trough-shaped when the contact element and the contact tongue are arranged parallel to one another and the surface of the contact tongue and the surface of the contact element, to which the connecting element
• Connecting element is arranged at least partially between the contact tongue and the contact element. If the connecting element is trough-shaped, the connecting element itself can remove the thermally separable connection from the gap between the contact tongue and the contact element during the process from the first position to the second position, without this being necessary
• Such a trained connecting element can thus fulfill two functions simultaneously, on the one hand in the first position the production of an electrical contact between the contact element and the contact tongue and on the other the function as a clearing element for cleaning the gap between the contact element and the contact tongue at a separation of electrical contact and a
• the thermally separable compound is preferably formed from a material which can be converted into a viscous state when a melting temperature is exceeded. This can prevent the thermal separable compound when melting during the
• the thermally separable compound is preferably formed from a non-eutectic material, so that the material of the thermally separable compound at
• Fig. 1 is a schematic representation of a
• Overvoltage protection element according to a first embodiment in a contacting state
• Fig. 2 is a schematic sectional view
• Fig. 3 is a schematic representation of the
• Fig. 4 is a schematic sectional view
• Fig. 5 is a schematic representation of a
• FIG. 6 is a schematic sectional view of a
• FIG. 7 is a schematic representation of the
• FIG. 8 is a schematic sectional view of a
• FIG. 10 is a schematic plan view of the overvoltage protection element shown in FIG. 9; FIG.
• FIG. 11 is a sectional view of that shown in FIG.
• Fig. 12 is a schematic representation of the overvoltage protection element
• FIG. 13 is a schematic representation of a
• Overvoltage protection element according to a fourth embodiment in a contacting state; a schematic plan view of the overvoltage protection element shown in Figure 13 / a sectional view of the representation of the overvoltage protection element according to the fourth embodiment shown in Figure 14 ..; and a schematic representation of the
• Overvoltage protection element according to the fourth embodiment in a non-contacting state.
• FIGS. 1-4 show an overvoltage protection element according to a first embodiment.
• Overvoltage protection element is usually arranged in a housing, not shown here.
• Overvoltage protection element has a contact tongue 10 and a spaced apart from the contact tongue 10 arranged
• a connecting element 14 is provided, which in a contacting state, such as
• the connecting element 14 lies in the first position with one of its side surfaces 22 on a surface of the contact tongue 10 and a arranged in a plane to the surface of the contact tongue 10 surface of the
• a thermally separable connection preferably in the form of a solder, which the connecting element 14 in the first position on the contact element 12 and fixed the contact tongue 10 and which melts in the overload case of the overvoltage protection element when a temperature equal to the melting temperature of the material of the thermally dissociable compound, so that the fixation is released and the connecting element 14 of the
• the connecting element 14 is in this embodiment designed such that it surrounds the edge regions of the
• Contact element 12 can be achieved in the contacting state, whereby the overvoltage protection element for
• a clearing element 24 is arranged in the form of a Räumfingers, by means of which after separation of the contact between the contact tongue 10 and the contact element 12, the gap 42 between the contact tongue 10 and the contact element 12 of Remains of the thermally dissociable compound can be released.
• the clearing element 24 in the first position, in the contacting state, is arranged in the gap 42 between the contact tongue 10 and the contact element 12.
• FIGS. 5-8 show a second possible embodiment of the overvoltage protection element according to the invention.
• the overvoltage protection element shown here essentially corresponds to that shown in FIGS. 1-4
• Overvoltage protection element wherein in this case the clearing element 24 is formed as a rake shield, which also in the second position of the connecting element 14, as shown in Fig. 7 and Fig. 8, in the gap 42 between the
• the clearing element 24 serves as a protective element to prevent the formation of arcs in the separation between the contact tongue 10 and the contact element 12.
• the clearing element 24 is connected via a hinge element 26 as a
• Contact element 12 partially surrounds.
• a thermally separable connection is respectively provided at the interfaces 34, 36, as shown in FIG. 11, between the connector 14 and the contact blade 10 and the contact member 12.
• the connecting element 14 is in this case trough-shaped
• the connecting element 14 is in this case preferably
• the thermally separable connection is formed, in particular in this embodiment, preferably from a material which can be converted into a viscous state when a melting temperature is reached. This can prevent the thermally separable
• Separable connection is preferably formed of a non-eutectic material, so that the
• FIGS. 13-16 show a fourth possible embodiment of the overvoltage protection element according to the invention, wherein the overvoltage protection element shown in FIG.
• Overvoltage protection element corresponds, wherein in the fourth embodiment shown here, the contact element 12 has a firstmaschineSchenkel 30 and a parallel thereto guided secondmaschineSchenkel 32.
• Trough-shaped connecting element 14 can be arranged between the first contact leg 30 and the second contact leg 32 of the contact element 12 in the first position, as can be seen in FIGS. 13-15, wherein the
• the thermally separable connection is arranged substantially at four boundary surfaces 34, 36, 38, 40 between the contact tongue 10, the contact legs 30, 32 and the connecting element 14, so that solely by the increased number of interfaces 34, 36, 38, 40 at which a thermally separable connection is provided, a higher
• Overvoltage protection element particularly high-energy surge currents can be transmitted. Be the parallel

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• Thermistors And Varistors (AREA)
• Fuses (AREA)
• Emergency Protection Circuit Devices (AREA)

Priority Applications (7)

Applications Claiming Priority (2)

Publications (1)

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ID=43927810

Family Applications (1)

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Citations (2)

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• 2010
  • 2010-03-10 DE DE102010010980A patent/DE102010010980A1/de not_active Withdrawn
• 2011
  • 2011-03-09 IN IN6613DEN2012 patent/IN2012DN06613A/en unknown
  • 2011-03-09 CN CN201180012314.8A patent/CN102782969B/zh active Active
  • 2011-03-09 EP EP11715395.7A patent/EP2545622B1/de active Active
  • 2011-03-09 WO PCT/EP2011/001145 patent/WO2011110330A1/de active Application Filing
  • 2011-03-09 US US13/583,412 patent/US8780520B2/en active Active
  • 2011-03-09 RU RU2012143141/07A patent/RU2543524C2/ru not_active IP Right Cessation
  • 2011-03-09 BR BR112012022565A patent/BR112012022565A2/pt not_active IP Right Cessation

Patent Citations (2)

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