Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
  • H01H9/10—Adaptation for built-in fuses
  • H01H9/104—Adaptation for built-in fuses with interlocking mechanism between switch and fuse
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
  • H01H31/02—Details
  • H01H31/12—Adaptation for built-in fuse
  • H01H31/122—Fuses mounted on, or constituting the movable contact parts of, the switch

Definitions

• the invention relates to a metal bracket for holding fuses in the cover of a fuse switch disconnectors with a front portion and two substantially perpendicularly extending away from the front portion wall portions.
• Such a metal bracket is known in the art. Me ⁇ tallbügel be used prevail to the high closing forces to be ⁇ which occur in lids of safety load-break switches, in particular with NH-fuses of size 1, 2, 3 or 4. When opening such a lid frictional forces of up to 50 kN must be overcome.
• a metal bracket of the type mentioned above in the lid of a Siche ⁇ approximate load separating switch In the prior art, these metal brackets are pressed into the cover for the hold and optionally punched or screwed by screws. The maintenance of the metal bracket is a problem in the prior art, in particular, the metal bracket is often offset by several assembly movements and strigo ⁇ ben until it finds support.
• the invention is achieved by a metal strap of the above mentioned type which is characterized in that it per ⁇ wells a retaining rib at the two wall portions, in particular at its end, starting points of the front portion on ⁇ , wherein the retaining web of the associated wall sections th laterally protrudes to the outside.
• each retaining web is perpendicular to the associated wall portion away.
• the holding webs have a third to two thirds of the length of the associated wall portion, and preferably they are half as long as the associated wall portion.
• the length can be determined in plan view of the metal bracket who ⁇ .
• the retaining webs run parallel to the front section. You should one-eighth to one-third the length of the front portion have, preferably one sixth to one quarter of the length and particularly before ⁇ Trains t one-fifth the length of the front section have.
• the front portion should have a slot starting from above for holding a hammer head of a fuse, which preferably widens in a funnel-shaped upward, that merges, starting from a rectangular shape in a tapered shape.
• the slot can thus hold the hammer head of a fuse, and because the metal bracket itself is held in the cover of a Siche ⁇ rungslastentrennschalters with its holding webs with two clamping lugs, a hammer head of the fuse to hold the fuse in the lid can be inserted into the slot of the metal bracket.
• a fuse has two hammer heads as standard. Fuse link are sorted wells held two metal brackets per ⁇ of clamping lugs into the case ⁇ sem.
• the metal bracket can therefore be easily inserted or locked in the lid of a fuse load ⁇ disconnector switch over only one mounting direction from above. Additional Fixed To ⁇ supply measures, such as screws or rivets are not lent required with appropriate structural design. As a result, the cover of the fuse load disconnect switch can be equipped with metal brackets without additional assembly movements.
• the metal bracket according to the invention therefore facilitates, in conjunction with the structural design of the clamping lugs
• FIG. 1 shows a perspective view of an inventive ⁇ Shen metal strap
• FIG 2 is a sectional view showing a cover of a fuse ⁇ circuit breaker with the cover held in the metal bracket and a ⁇ supported on the metal bracket requested backup, and
• FIG 3 shows a perspective view of two receiving compartments of a cover of a fuse switch-disconnector, wherein in the one receiving compartment held by the metal bracket according to the invention NH fuse is located.
• a shown in FIG 1 metal bracket 10 has a cut 12 and a Frontab ⁇ from the front portion in the essential Chen perpendicular wegersummenden wall portion 14 on both sides of the front portion 12.
• a holding web extends at the end of the wall portion 16 perpendicularly away the thus parallel to the front portion 12, each retaining rib 16 approximately one-fifth of the length (or seen from the perspective of FIG 1, the width) of the Frontab ⁇ section Has.
• the holding web 16 is approximately half as long as the associated wall section 14.
• the front portion 12 has a slot 20 which begins at ⁇ half the mean height of the front portion 12 with a rectangular shape and then widens triangular, so that a funnel-shaped opening 22 is formed in the slot 20 into it.
• the slot 20 with the funnel-shaped opening 22 may simply be punched out of a metal sheet.
• the metal sheet may be bent to form the aforementioned shapes.
• FIG 2 now shows a cover for a fuse switch disconnectors seen in cross section from above.
• This lid has three receiving pockets 24 for holding fuses.
• Each receptacle has two clamping lugs 26 which are made of plastic and slightly springy, and between them and a guide bar 28 have a space for receiving the support webs of the metal bracket 10. Showing the right side of Figure 2 the clamping lugs 26 and the guide ⁇ webs 28 metal strap held 10. In the slot of the metal tallbügels 10, the hammer head 30 of a fuse inserted 32 is ⁇ that in the receiving compartment 24 of the lid of the backup ⁇ disconnector is held.
• the hammer head consists of a substantially rectangular section in the section, behind which there is a neck 34 which is slightly less wide, so that the fuse 32 can be pushed with the neck in the slot and the hammer head then prevents movement of the fuse 32
• 3 shows the cover for a fuse switch disconnectors with two receiving compartments 24, wherein the fuse is held in the right receiving compartment.
• This perspective view shows how the metal brackets 10 (in each case two per storage compartment 24, ie per fuse 32) are held on the clamping lugs.

Landscapes

• Fuses (AREA)
• Switch Cases, Indication, And Locking (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=36601148

Family Applications (1)

Country Status (5)

Families Citing this family (2)

Citations (3)

Family Cites Families (3)

• 2005
  • 2005-03-24 DE DE200510014980 patent/DE102005014980B4/de not_active Expired - Fee Related
• 2006
  • 2006-03-23 CN CN2006800086148A patent/CN101142646B/zh not_active Expired - Fee Related
  • 2006-03-23 EP EP06725274.2A patent/EP1861859B1/de not_active Expired - Lifetime
  • 2006-03-23 WO PCT/EP2006/060997 patent/WO2006100293A1/de not_active Ceased
  • 2006-03-23 BR BRPI0614015-7A patent/BRPI0614015A2/pt not_active Application Discontinuation

Patent Citations (3)

Non-Patent Citations (1)

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