EP1934996A1 - Electrical interrupt fuse appliance - Google Patents
Electrical interrupt fuse applianceInfo
- Publication number
- EP1934996A1 EP1934996A1 EP06808142A EP06808142A EP1934996A1 EP 1934996 A1 EP1934996 A1 EP 1934996A1 EP 06808142 A EP06808142 A EP 06808142A EP 06808142 A EP06808142 A EP 06808142A EP 1934996 A1 EP1934996 A1 EP 1934996A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- fuse
- connection
- different
- support
- 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.)
- Granted
Links
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
- H01H9/106—Adaptation for built-in fuses fuse and switch being connected in parallel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
- H01H2085/2065—Bases for supporting the fuse; Separate parts thereof with base contacts adapted or adaptable to fuses of different lenghts; bases with self-aligning contacts; intermediate adaptation pieces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
- H01H2085/207—Bases adapted to fuses with different end contacts or to other components, e.g. circuit breakers; intermediate adaptation pieces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
- H01H85/2005—Bases for supporting the fuse; Separate parts thereof for use with screw-in type fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
- H01H85/202—Bases for supporting the fuse; Separate parts thereof for fuses with ferrule type end contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/34—Distinguishing marks, e.g. colour coding
Definitions
- the present invention relates to an electrical fuse cutoff device comprising at least one housing enclosing at least two electrical contacts connected by a fuse disposed outside said housing, this fuse having at least two connection pads, each electrically coupled to said electrical contacts by two support elements passing through said housing, each support element comprising at least one connection zone to said fuse disposed outside the housing, an attachment zone to said housing and a connection zone to said electrical contact disposed within the housing.
- switchgear devices such as fuse switches or fuse disconnectors are commonly used in order to protect the power supply of industrial equipment.
- These switching devices have ratings that can vary from a few tens to several thousand amperes and are, therefore, equipped with different fuse formats selected according to, in particular, the rating of the breaking device and the national standards in force. and / or international.
- Each fuse format is distinguished by its dimensions, its form of connection pads and its connection mode. As a result, there are specific support elements for each fuse format and each electrical breaking device is different.
- the present invention aims at proposing a solution making it possible to universalize as much as possible the fuse support elements and the corresponding breaking devices, so that they can receive several fuse formats, in order to reduce the number of references, to massify the production. and reduce production costs, while simplifying cut-off devices.
- the invention relates to an electrical switching device of the type indicated in the preamble, characterized in that at least the housing and the electrical contacts are arranged to allow the mounting of the support elements on the housing in different mounting positions in order to be able to adapt their center distance to different fuse formats and make this housing universal.
- the housing comprises at least two connection openings each disposed facing an electrical contact, these connection openings being elongate and delimiting for each support element two extreme mounting positions. It may also comprise at least two sets of several parallel connection slots, each set being arranged opposite an electrical contact, these connection slots defining for each support element different fixed mounting positions.
- the electrical contacts each comprise at least one conductive bar extending at least along the length of the connecting opening or set of connection slots corresponding thereto and the connection area of each support element comprises at least a spring clip adapted to fit on the corresponding electrical contact.
- This spring clip may comprise at least two branches biased towards each other by at least one spring member or at least one fixed branch and a movable branch biased towards the fixed branch by at least one spring member.
- the housing and the mounting area of each support member comprise complementary fixing means arranged to allow the fixing of the support elements on the housing in their different mounting positions.
- each support element comprises, in its attachment zone, a base in plane support on the housing and fixed thereto by at least one fixing member.
- connection area of the support members is also arranged to permit the mounting of different forms of connection pads corresponding to different fuse formats, making these support elements universal.
- connection area of each support member comprises at least one spring clip adapted to receive by interlocking a connection range of the fuse.
- This spring clip is adaptable to the connection pads of different fuse sizes and may comprise at least one fixed branch and a movable branch biased towards the fixed branch by at least one spring member.
- the movable branches of the connection and connection areas of the same support member are advantageously formed of a single blade pivotally mounted about an axis substantially median to said support member and biased by the same spring member.
- connection zone of each support element comprises at least one connecting lug adapted to receive in plane support a fuse connection range fixed by at least one fixing member, the connecting lug comprising at least one connecting lug. minus two superimposed fixing holes of diameters different to receive fasteners suitable for different fuse formats.
- This connection zone may comprise at least one mounting bracket reported under the connecting lug and provided with a first fixing hole, the connecting lug having the second fixing hole of a diameter greater than the first.
- the housing and the support elements may comprise means for indexing the various possible mounting positions and an identification marking of the different fuse formats corresponding to said indexed mounting positions.
- FIG. 1 is a perspective view of a three-pole electrical breaking device according to the invention
- FIG. 2 is a perspective view of the casing of a cut-off module of the apparatus of FIG. 1
- FIGS. 3A-C are perspective views of the casing of FIG. 2 according to a first embodiment respectively equipped with three different fuse formats
- FIGS. 4AB and C are top views of the casing corresponding to FIGS. 3A and 3B
- FIGS. 5A and 5B are top and bottom perspective views of a fuse support member according to the first embodiment
- FIG. 5C is a detail view of a part of this element.
- FIG. 6 is a view similar to FIG. 3C, of a housing and its support elements, without a fuse, in the mounting or adjustment phase, FIGS.
- FIGS. 7A-D are perspective views of the casing of FIG. 2 according to a second embodiment respectively equipped with four different fuse formats
- FIGS. 8AB, C and D are top views of the casing corresponding to FIGS. 7A and B, 7C and 7D
- Figs. 9A and 9B are respectively perspective and side views of a fuse holder according to the second embodiment.
- the electric switching device 1 is a three-phase fuse switch or disconnector provided with three cut-off modules 2, one for each phase or pole of the electrical distribution network, and one control module 3.
- This electric switching device 1 may comprise a number of different poles.
- Each cut-off module 2 is formed of a substantially parallelepiped-shaped casing 20 enclosing electrical contacts 4, at least two of which are electrically connected by a fuse 5 disposed outside the casing 20 and carried by two support elements. 6, 7.
- Each support element 6, 7 comprises a connection zone A to the fuse, located outside the housing 20 to connect to the fuse 5 by its connection pads 50, a connection area C to the electrical contact, located inside the housing 20 to connect to the electrical contact 4, and a fixing zone B to the housing, preferably located outside the housing F between the zones A and C.
- the format of the fuses 5 depends on the size of the electrical breaking device 1, namely its amperage, and the normative specificities of each country.
- the object of the invention is to allow the mounting of different formats of existing fuses or at least the main ones, with only one type of housing 20 and two types of support elements 6, 7.
- the invention accordingly proposes two models of support elements 6, 7, a first model of support elements 6 illustrated in FIGS. 3 to 6, which allows the connection pads 50 of the fuses 5a-c to be fixed by screwing. , and a second model of support elements 7 illustrated in Figures 7 to 9, which allows the fixing of the connection pads 50 of the fuses 5b and 5d-f.
- the housing 20 meanwhile is designed on the basis of a single model compatible with one or the other model of support elements 6, 7 chosen.
- the housing 20 has on the face receiving the fuse 5 two connection openings 21 each arranged opposite an electrical contact 4 and allowing the passage of the connection area C of each support member 6, 7.
- connection openings 21 are rectangular and sufficiently elongated to allow the mounting of the elements of support 6, 7 in different positions in order to adapt their spacing to the different fuse formats 5a-f.
- the electrical contacts 4 comprise a conductive bar which extends parallel to the axis of the connection opening 21 and over its entire length so that the electrical connection is possible regardless of the mounting position of the support element 6, 7.
- These connection openings 21 have the advantage of allowing a continuous adjustment of their position. However, they may be replaced by two sets of several parallel connection slots (not shown) each defining a mounting position of the support elements 6, 7.
- the housing 20 comprises at least two threaded fixing holes 22 each adapted to receive a fixing member 23, such as a screw, for fixing in a chosen mounting position of each support element 6, 7.
- Each fixing hole 22 may be formed by a square nut 24 housed in a groove 25 of the housing 20, the position of this nut 24 being adjustable to adapt to the chosen mounting position.
- Each support element 6, 7 is mounted in a base 8 in plane support on the housing 20 and fixed on the latter at least by the fixing member 23.
- the base 8 has openings 80 capable of being traversed by at least the zone of connection to the contact C of the support elements 6, 7. It also comprises a housing (not visible) adapted to receive by interlocking the fixing lug 60 provided in the zone of attachment to the housing B of the elements of support 6, 7.
- This base 8 comprises an orifice 81 for the passage of the fastener 23, which simultaneously fixes the support member 6, 7, through an oblong hole 61 provided in said fixing lug 60.
- base 8 is made of an electrically insulating material and makes it possible to secure the assembly by firmly holding the support element 6, 7 with respect to the housing 20 and to close the connection openings 21.
- the housing 20 also comprises indexing means 26 in the form of notches adapted to cooperate with complementary notches 86 provided under the base 8 to define the different possible mounting positions of the support elements 6, 7, an identification marking 27 is provided on the housing 20 to be visible through a window 87 provided in the base 8 for the purpose of identifying the fuse or formats that correspond to the mounting positions defined by the means 26.
- the housing 20 finally has connection terminals 28 accessible on its sides for the connection of measurement or control equipment to voltage taps (not shown) connected directly to the electrical contacts 4.
- connection terminals 28 accessible on its sides for the connection of measurement or control equipment to voltage taps (not shown) connected directly to the electrical contacts 4.
- the configuration of FIG. the face receiving the fuse 5 of the housing 20 is symmetrical with respect to its central point and allows mounting on the right or left of the same support elements 6, 7 which are therefore reversible.
- the support element 6 is made in an electrically conductive bar having a substantially inverted-L shape, the large branch of the L defining the connection zone to the contact C and the small branch of the L defining the connection area to the fuse A.
- This fuse connection zone A comprises a connecting lug 62 provided with at least one threaded fixing hole 63, on which is fixed a connection pad 50 of the fuse 5 by at least one fastener (not shown) screwed through a bore 51 preferably oblong into the fixing hole 63.
- This connecting lug 62 has a smooth hole 64 disposed opposite the fixing lug 60 to allow access to the fastener 23 by a tool 10 such as a screwdriver for example.
- This connecting lug 62 comprises a mounting bracket 9, made of an electrically conductive material, substantially U-shaped, fixed under the connecting lug 62 by a return 90 and two fasteners 91 such as screws. It comprises in its base 92 a fixing hole 93 threaded, disposed opposite the fixing hole 63 and a smaller diameter.
- the fixing hole 63 corresponds to a diameter M8 adapted to fuse sizes 5a and 5c
- the fixing hole 93 corresponds to a diameter M6 adapted to fuse formats 5b.
- the fixing hole 93 can be formed by a square nut 94 held between three tongues cut in the base 92 and folded to form a cage 95.
- the branches 96 of the mounting bracket 9 start from the base 92 to frame the connection lug 62 of the support element 6. This mounting bracket 9 also allows, by its shape, to ensure a dissipation of Joules generated by the electrical connection.
- This support element 6 comprises in its contact connection area C at least one spring clip 65 adapted to fit on the electrical contact 4.
- This spring clip 65 has two substantially parallel vertical branches separated by a slot whose width corresponds to the thickness of the electrical contact 4.
- a spring member 66 is mounted around the two branches to urge them towards each other and provide a tight fitting so a quality electrical connection.
- this spring member 66 is formed of a wire provided with a helical median section and two free ends engaged with external notches formed in the branches of the clamp 65.
- other spring members 66 may be suitable such as a circlip or the like.
- the support member 7 is formed in an electrically conductive bar having a substantially I-shaped, the fuse connection areas A and C contact connection being aligned.
- the fuse connection zone A comprises a spring clip 70 adapted to receive by interlocking a connection pad 50 of the fuse 5.
- This spring clip 70 comprises two branches 71, 72, one 71 being fixed and the other 72 mobile and biased towards the fixed branch 71 by a spring member 73 to ensure a good electrical connection and simultaneously to adjust the interval between the branches 71, 72 at different thicknesses of connection pads 50 for different fuse formats 5.
- the contact connection area C comprises a spring clip 74 adapted to fit on the electrical contact 4.
- This spring clip 74 comprises two branches 75, 76, one 75 being fixed and the other 76 being mobile and biased towards the fixed branch 75 by a spring member 73 to ensure a good electrical connection.
- the two movable arms 72, 76 are formed of one and the same blade, slightly V-shaped, pivotally mounted about a substantially median axis 77, located in the zone of attachment to the housing B and oriented perpendicular to the support member 7. This flat blade is biased by a single spring member 73, also in the form of a V blade retained by the axis 77.
- any other member spring 73 or any other embodiment of the movable branches 72, 76 may be suitable.
- these support elements 6, 7 to the housing 20 is very simple. They are previously assembled to their base 8 by introducing their connection area to the contact C through the openings 80 of the base 8 to the attachment area B where the fixing lug 60 is fitted into the corresponding housing of the base 8. This subassembly is then mounted on the housing 20 by introducing the connection area to the contact C through the connection openings 21 and fitting the spring clip 65, 74 on the corresponding electrical contact 4. It is simultaneously positioned by placing each base 8 in the mounting position which corresponds to the fuse format 5 to be mounted. For this, the operator is assisted by the markings 27 and the indexing means 26.
- Each subassembly is locked in position on the housing 20 by using the fastener 23 which passes successively through the orifice 81 of the base 8 and then the oblong hole 61 of the support element 6, 7 before being screwed into the fixing hole 22 of the housing 20 with the help of, for example, a screwdriver 10.
- the fuse 5 can be put in place by screwing or simple interlocking on the connection areas A support elements 6, 7, the spacings and fixing being adapted to its different formats. Possibilities of industrial application:
- FIGS. 3A-C illustrate a housing 20 of an electrical breaking device 1 according to the invention equipped with two support elements 6 according to the first model allowing the mounting of different fuse formats 5a-c, namely the standard BS formats Bl or B2, the BS type A4 and the UL type J that must be screwed.
- Figures 4AB and 4C show the top of the housing 20 without the fuse 5a-c in each case.
- FIG. 3A illustrates the assembly corresponding to fuse 5a of BS type B1 or B2 format.
- the support elements 6 are symmetrically spaced apart from each other, the notches 86 of the bases 8 are nested in the first notches 26 starting from the sides of the housing 20 and the two windows 87 show the marking 27 "B 1.B2.J" as shown in Figure 4AB.
- the connection pads 50 of the fuse 5a are fixed by a fixing screw M8 in the fixing hole 63 of the connection tab 62.
- FIG. 3B illustrates the arrangement corresponding to the fuse 5b of type J UL format which is identical to that of FIG. 3A, except that the connection pads 50 of the fuse 5b are fixed by a fixing screw M6 in the fixing hole 93 of the mounting bracket 9 provided under the connecting bracket 62.
- FIG. 3C illustrates the mounting corresponding to fuse 5c BS format type A4.
- the support elements 6 are brought symmetrically close to each other, the notches 86 of the bases 8 are nested in the third notches 26 starting from the sides of the housing 20 and the two windows 87 show the marking 27 "A4" as shown in Figure 4C.
- the connection pads 50 of the fuse 5c are fixed by a fixing screw M8 in the fixing hole 63 of the connection tab 62.
- FIG. 7A-D illustrate a housing 20 of an electrical breaking device 1 according to the invention equipped with two support elements 7 according to the first model allowing the mounting of different fuse formats 5b, 5d-f, namely the format UL type J and DESf formats type 0, 00, 00C or 1, which can be nested.
- Figures 8AB, 8C and 8D show the top of the housing 20 without the fuse 5b, 5d-f in each case.
- FIG. 7A illustrates the fitting corresponding to fuse 5d of DIN type 1 format.
- the support elements 6 are symmetrically spaced as far as possible from one another
- the notches 86 of the bases 8 are nested in the first notches 26 from the sides of the housing 20 and the two windows 87 show the marking 27 "0.1J" on the right side and "IJ" on the left side as shown in Figure 8AB.
- FIG. 7B illustrates the arrangement corresponding to fuse 5b of type J UL format which is identical to that of FIG. 7A, the connection pads 50 of fuse 5b being nested in spring clamps 70, unlike the assembly illustrated in FIG. Figure 3B where they were screwed.
- FIG. 7C illustrates the assembly corresponding to fuse 5e of DIN 0 format.
- the support element 6 on the left is shifted by one notch 26 to the right and the window 87 on the left shows the marking 27 "0 As shown in Figure 8C.
- Figure 7D illustrates the fitting corresponding to fuse 5f DIN format type 00 or 00C.
- the support elements 6 are brought symmetrically close to each other, the notches 86 of the bases 8 being nested in the last and fourth notches 26 starting from the sides of the housing 20 and the two windows 87 show the marking 27 "00" as shown in Figure 8D.
- the connection pads 50 of the fuses 5b, 5d-f are fitted into force in the spring clips 70 which adapt to the thickness of these ranges by means of the spring member 73 and the pivot mounting of moving limbs 72, 76.
Landscapes
- Fuses (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0509431A FR2890781B1 (en) | 2005-09-15 | 2005-09-15 | ELECTRICAL FUSE CUTTING APPARATUS |
PCT/FR2006/002119 WO2007031656A1 (en) | 2005-09-15 | 2006-09-15 | Electrical interrupt fuse appliance |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1934996A1 true EP1934996A1 (en) | 2008-06-25 |
EP1934996B1 EP1934996B1 (en) | 2009-12-09 |
Family
ID=36282706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06808142A Not-in-force EP1934996B1 (en) | 2005-09-15 | 2006-09-15 | Electrical switching device with fuse |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1934996B1 (en) |
AT (1) | ATE451707T1 (en) |
DE (1) | DE602006011038D1 (en) |
FR (1) | FR2890781B1 (en) |
WO (1) | WO2007031656A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007023466A1 (en) * | 2007-05-16 | 2008-11-20 | Siemens Ag | Switch-disconnector in strip design with fuses |
FR2958792B1 (en) | 2010-04-13 | 2012-08-03 | Socomec Sa | FUSE HOUSING AND ELECTRIC CUTTING APPARATUS PROVIDED WITH SUCH A HOUSING |
FR2976740B1 (en) | 2011-06-20 | 2014-01-03 | Socomec Sa | ELECTRICAL CONNECTION CLAMP FOR A CONNECTION RANGE OF AN ELECTRICAL EQUIPMENT AND AN ELECTRIC APPARATUS EQUIPPED WITH SUCH A CONNECTION CLAMP |
DE102015204974B3 (en) * | 2015-03-19 | 2016-02-04 | Siemens Aktiengesellschaft | Multi-pole switch, which is formed from several Polgehäusen |
CN209496802U (en) * | 2018-11-28 | 2019-10-15 | 库柏西安熔断器有限公司 | Fuse, vehicle circuitry for electric vehicle and electric car |
CN112670140B (en) * | 2020-12-15 | 2022-07-01 | 贵州电网有限责任公司 | Fuse tube placing frame |
CN112863971B (en) * | 2021-01-05 | 2022-08-12 | 余姚市超力电力电器有限公司 | Fuse and mounting structure thereof |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3796978A (en) * | 1972-06-05 | 1974-03-12 | Westinghouse Electric Corp | Electromagnetic contactor with fuse block |
DE4326401C2 (en) * | 1993-08-06 | 2001-02-08 | Peterreins Schalttechnik Gmbh | Arrangement consisting of a switch part and a fuse part |
DE10055035C2 (en) * | 2000-11-07 | 2002-10-02 | Peterreins Schalttechnik Gmbh | Switch disconnector with at least one fuse holder |
US6577495B2 (en) * | 2000-12-15 | 2003-06-10 | Square D Company | Fuse base assembly |
-
2005
- 2005-09-15 FR FR0509431A patent/FR2890781B1/en not_active Expired - Fee Related
-
2006
- 2006-09-15 DE DE602006011038T patent/DE602006011038D1/de active Active
- 2006-09-15 EP EP06808142A patent/EP1934996B1/en not_active Not-in-force
- 2006-09-15 AT AT06808142T patent/ATE451707T1/en not_active IP Right Cessation
- 2006-09-15 WO PCT/FR2006/002119 patent/WO2007031656A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2007031656A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1934996B1 (en) | 2009-12-09 |
FR2890781A1 (en) | 2007-03-16 |
DE602006011038D1 (en) | 2010-01-21 |
ATE451707T1 (en) | 2009-12-15 |
WO2007031656A1 (en) | 2007-03-22 |
FR2890781B1 (en) | 2007-11-30 |
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