EP0849764A1 - Geräte-Sicherungshalter - Google Patents
Geräte-Sicherungshalter Download PDFInfo
- Publication number
- EP0849764A1 EP0849764A1 EP97121034A EP97121034A EP0849764A1 EP 0849764 A1 EP0849764 A1 EP 0849764A1 EP 97121034 A EP97121034 A EP 97121034A EP 97121034 A EP97121034 A EP 97121034A EP 0849764 A1 EP0849764 A1 EP 0849764A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuse holder
- device fuse
- heat
- holder according
- ventilation slots
- 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
Images
Classifications
-
- 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
- H01H85/54—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers
- H01H85/542—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers the intermediate or auxiliary part being provided with bayonet-type locking means
-
- 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
- H01H85/47—Means for cooling
Definitions
- the present invention relates to a device fuse holder, consisting of a lower part and an insert carrier, which are made of a thermoplastic.
- the lower part is also used as a holder, and the Insert carrier also referred to as a cap.
- the Insert carrier also referred to as a cap.
- the terms lower part and insert carrier is on the terms lower part and insert carrier.
- Such device fuse holders are in electrical devices widespread. They wear in one by the bottom and the insert formed space interchangeably a securing element, often a tube fuse.
- the device fuse holder connects the fuse element in an electrically conductive manner with his external contacts.
- a Device fuse holder can be used on circuit boards, or it is designed for installation in housings of electrical devices.
- the device fuse holder over the fuse element should make its external contacts electrically accessible, whereby the fuse itself is isolated as well as possible from the environment should be. Because of their good insulation properties and the good processability are thermoplastics in the mass production of device fuse holders preferably used.
- Approvals of device fuse holders are carried out in a standardized procedure, inter alia, in that the thermal load on a fuse element is simulated by an equivalent resistor in continuous operation.
- the fuse power loss P v is measured at 1.5 times the rated current of the fuse element, but a fuse does not switch off immediately even at higher currents. Thus, over a period of time, much higher power losses than the specified standard power loss P v can be transferred from a fuse to a holder. Combinations of operating states occur with fuse-fuse holders that are not taken into account in the standard.
- thermoplastic body of the device fuse holder can melt or scorch despite the correct formal coordination.
- the arrangement of ventilation slots in the walls of the The entire contact surface becomes the lower part and / or the insert carrier of the device fuse holder with the ambient air enlarged. This can be used to a greater extent inside the device fuse holder generated power loss are given.
- fuse carrier functions of the fuse carrier are preferred in the insert carrier and that of a closure for the lower part combined in one part.
- the invention with all its developments is of course also for device fuse holders executable where the fuse carrier with the lower part is connected, or the fuse carrier as independent, single part is executed.
- the ventilation slots enforce the Device fuse holder parallel or perpendicular to it Central axis and run in the wall such that can form continuous air currents. So chimney-like Ways created to thermally fuse the device to relieve that by the total power loss warmed up air discharged from the device fuse holder and cool air can flow in from the surroundings.
- the ventilation slots only pass through the lower part of the device fuse holder.
- the interior of the Device fuse holder remains self-contained and thus electrically insulated from the environment.
- such Device fuse holder that regarding the installation position on the part of the lower part within a device equipped with an enlarged surface. That kind of pure surface enlargement in turn requires an increased Power dissipation through the surrounding air by convection.
- the surface of the Lower part of the device fuse holder by sliding it on and / or locking and / or screwing on a sleeve can be enlarged.
- the metallic sleeve is placed on or over the lower part and conducts the heat loss coming from the lower part due to the better thermal properties compared to plastics from metal also better.
- the transition point between Plastic and the metal can, for example, by close contact or by applying thermal grease well designed to be thermally conductive.
- a device fuse holder according to the invention is advantageously designed so that it is in a receiving hole Mounting plate of a device can be used. So can, above all in conjunction with the sleeve described above on the inside Part of the lower part, a simple type of attachment to provide. Further advantageous fastening measures are described below.
- the heat-dissipating element is in one piece connected to the lower part of the device fuse holder.
- the one-piece connection results in a good heat transfer of the lower part on the heat-dissipating element and minimized at the same time the number of individual parts when using such Device fuse holder.
- the heat-dissipating element snaps into place for fastening the device fuse holder in a wall of a housing. It therefore fulfills the pure cooling function also the tasks of a holding and fastening means.
- Such a device fuse holder is preferably manufactured in such a way that the heat-dissipating element and the electrical Contacts before potting with a thermoplastic are integrally connected, preferably in Form of an endless band made of metallic stamping material consists.
- the strip material is fed to the injection molding machine and by bending and / or folding into a predetermined shape brought. After casting and hardening of the plastic the metallic parts have different functions from each other Cut. This prevents, for example cooling metal parts as well as the contacts are live when used.
- the separation is particularly advantageously carried out in a combined one Working step when spreading the injection molds, in which the lower part of a device fuse holder according to the invention will be produced.
- the device fuse holder is in one Mounting plate from the back to the front can be installed, i.e. in reverse of the normal installation direction.
- the heat-dissipating element is preferably in Form of a spring part clamped at least on one side educated.
- the particularly metallic element can be used as bent wire, or as a sheet metal part. So can in addition to heat dissipation also an automatic and wobble-free attachment can be realized.
- the heat dissipating must Element not installed on the outside after installation Front board of the device must be visible.
- a preferred embodiment is based on a sketch of an embodiment described.
- Fig. 1 shows a device fuse holder 1, for insertion formed in a receiving hole 2a of a front panel 2 is.
- the device fuse holder 1 is not mandatory in use this form, since not all applications use fuses require that must be accessible from the outside. in the The following are only device fuse holders 1 treated in a receiving hole 2a of a front panel 2nd can be used.
- FIG. 1 there is a lower part 3 its upper region 3a from the receiving hole 2a of the front panel 2 out.
- an insert carrier 4 in the usual way, for example by means of a Renk screw lock, attached in the lower part 3.
- a second electrical external contact, a foot contact 7b is located in the lower area 3b of the lower part 3.
- the ventilation slots 8 are distributed on the circumference of the insert carrier 4 such that they than elongated small openings in the neighborhood more exciting Parts in the upper area of the insert carrier housing 4 run.
- On the bottom part 3 are the ventilation slots 8 arranged analogously, so that here too a direct Contact with live and live parts even when Insertion of needles or the like is avoided.
- the electrical contacts 7a, 7b are made by stamped sheet metal parts educated.
- ventilation slots 8 are formed in the lower part 3 in that the electrical contacts 7a, 7b in their central area have an elongated punch opening, which in the lower part 3 serve as channels for air exchange. This measure can alternatively or in addition to the ventilation slots described 8 are used.
- the measures mentioned for producing ventilation slots 8 are with little effort in the previous production process, For example, can be integrated into a plastic injection molding process.
- the ventilation slots 8 run in this example parallel to a central axis 9 of the entire arrangement, so that at least in sections parallel to the recesses for the electrical contacts 7. That's an integration the ventilation slots 8 in an injection mold Maintaining the previous opening and closing movement easy to do.
- FIG. 2 shows an alternative embodiment of a device fuse holder 1 using ventilation slots 8 For the sake of clarity, this is only Lower part 3 with omission of the complete deployment vehicle 4 and the securing element 5 shown. Their arrangement takes place analogously to FIG. 1.
- the ventilation slots 8 run parallel to the central axis 9 only in the wall of the lower part 3. This leaves the interior of the device fuse holder 1 completely closed. The cooling takes place exclusively over the wall of the lower part.
- Fig. 3 also represents only a lower part 3 of another alternative embodiment of a device fuse holder 1 represents, here the ventilation slots 8 perpendicular to the central axis 9 run.
- the ventilation slots 8 are only in the part of the lower part 3 located inside the device.
- this honeycomb structure goes into a reinforced section in the Area 10 of the receiving hole 2a over which the actual Fixing of the device fuse holder 1 is preferably carried out.
- a thread for a union nut can be used here to be ordered. Other mounting options too are discussed below.
- FIG. 4a is a further embodiment of a device fuse holder 1 shown, for the removal of the internally generated Heat loss on the inside part of the lower part 3 has an enlarged surface 10.
- the enlargement surface 10 increases heat dissipation by convection.
- the surface 10 on the Bottom part as a one-piece plastic part with ribs rounded edges formed. This results in an overall Mechanically very stable device fuse holder.
- Fig. 4b shows a section through Fig. 4a in the plane A-A It demonstrates that by choosing a wavy surface 10 the total area available for heat dissipation clearly compared to a normal state of a smooth or flat surface is enlarged. Inside the wall of the Lower part 3 is the heat generated by the power loss led to the surface 10 by heat conduction, where they are removed by free or forced convection becomes.
- Fig. 5a uses the same principle of Enlargement of the outer surface 10 on the inside of the device Part of the lower part 3 as in Fig. 4a.
- the sleeve 11 is in slotted in the axial direction, so that they are made in a simple manner a stamped and then bent sheet metal piece can be.
- the sleeve 11 can on the lower part 3rd of the device fuse holder 1 pushed on or clipped on be, the sleeve 11 at the same time in addition to the heat dissipation can also take on the task of consolidation.
- FIG. 5a shown basic structure can also Sleeve 11 still have knobs or the like, which in corresponding Depressions or an external thread of the lower part 3 intervene to create a releasable and durable, non-slipping To form bond.
- FIG. 5a The advantage of using FIG. 5a The embodiment described is that the lower part 3 seen from its diameter narrow builds, so that in a front panel 2 also only one receiving hole 2a Size for this device fuse holder 1 is to be provided.
- a metallic sleeve 11 can also be used for retrofitting existing device fuse holder 1 can be used for fastening, as well as to reinforce such a device fuse holder for safe use at higher temperatures or all occurring operating states of the combination from fuse 5 and fuse holder 1.
- Fig. 5b shows a top view of the sleeve 11 of Fig. 5a It shows that in analogy to Fig. 4b a further surface enlargement realized by forming ribs has been. In the present case, this measure has a slotted one Sleeve 11 still has the advantage that the spring stiffness the metallic body is adjustable in terms of production technology. This makes such a sleeve 11 in a wide diameter range of fuse holder lower parts 3 can be used. Furthermore, it is not necessary for a sleeve 11 to be shorter than the rear part of the lower part 3, as in Fig. 5a shown. The sleeve 11 can even the connections 7 protrude if the necessary precautions at connections 7 to isolate the connections have been made, such as it is common. This will remove the heat increased by enlarging the sleeve 11 as a heat sink.
- FIG. 6 shows an alternative embodiment of a device fuse holder 1 according to Figures 4a, 4b and 5a, 5b.
- a nut 12 in its lower area to a sleeve-shaped Shaft 11a shaped.
- the mother runs towards the upper end 12 into a collar 13.
- Such a mother 12 will on an external thread (not shown here) of the lower part 3 screwed so that a front plate 2 between the from the Receiving hole 2a protruding upper part 3a of the lower part 3rd and the collar 13 of the sleeve 11 firmly and wobble-proof becomes.
- the external thread on the area near the upper part 3a be limited to the lower part 3.
- Thermal paste 14 applied as shown here in Fig. 6 as an example drawn.
- Fig. 7 pursues another approach to deriving the Heat loss.
- a heat-dissipating one is used in two places Element 15 integrally connected to the lower part 3.
- the heat dissipating Element 15 protrudes into the wall of the lower part 3 in and is there firmly from the plastic material from which the lower part 3 is constructed, enclosed. This results in also an intimate thermal contact with a good transition the heat from the wall into the heat-dissipating element 15 inside.
- the heat-dissipating element 15 can be a plastic part be integrated in the lower part 3. Because of the essential However, better thermal conductivity is used as the material for a heat-dissipating element 15 prefers a metal.
- the heat-dissipating element 15 is at an oblique angle to the Center axis 9 arranged such that it as a resilient element serves and a barb for fastening such Bottom part in the receiving hole 2a of a mounting plate 2.
- the lower part 3 thus latches through after insertion the receiving hole 2a of the front panel 2 and thus gives easier and quick assembly a permanent and safe Stop.
- heat-dissipating element 15 together with the contacts 7 consists of the same metal and also a manufacturing machine fed as a coherent single piece can be.
- a manufacturing machine in the production of modern Device fuse holder 1 are used for plastic injection molding machines, the one in a work preparation step Unit of contacts 7 and one or more heat-dissipating Separate elements 15 from an endless band of stamped parts and by bending into a predetermined initial shape and Can bring starting position.
- the lower part 3 is then called Plastic injection molded part around these metallic parts poured.
- the individual, previously connected parts automatically when Moving the injection mold apart from each other. After the removal of the separated parts 16 are thus the contacts 7 electrically isolated from each other.
- Fig. 8 the basic idea for the construction of the lower part 3 of a device fuse holder 1 of Fig. 7 picked up and educated.
- the heat-dissipating Elements 15 designed as spring arms.
- arms 17 are in one piece with connected to the lower part 3.
- These arms 17 are designed that through the overall structure of the lower part 3 itself Assemble the device fuse holder 1 in the opposite direction offers, so a "back-to-front" assembly, in which the lower part 3 from a rear side 18 of a mounting plate 2 the receiving hole 2a inserted through to the front 19 becomes. Due to the spread arms 17, the lower part 3 in rearward direction not pulled out of the receiving hole 2a will.
- the special shape of the heat-dissipating Elements 15 is used to after snapping the lower part 3 by a resilient bracing of the heat-dissipating elements 15 to guarantee a secure and wobble-free fit.
- Each heat-dissipating element 15 is shaped so that Wall thicknesses of front panels 2 in a larger area for a secure permanent attachment is suitable. Hence it follows a particularly simple and quick assembly, with a complete Module including a device fuse holder 1 can already be completely prefabricated and tested, to then only be inserted into a housing of an electrical device to become.
- the resilient system of the heat-dissipating Elements 15 on the back 17 of the large area Front plate 2 for a good heat transfer and thus one safe heat dissipation. This is how the entire front panel 2 is used as an additional heat sink for those from the device fuse holder 1 heat to be dissipated.
Landscapes
- Fuses (AREA)
- Gyroscopes (AREA)
Abstract
Description
- Lüftungsschlitze
- in der Wandung
- des Unterteils und/oder des Einsatzträgers angeordnet sind.
- Fig. 1
- eine Schnittdarstellung einer ersten Ausführungsform eines Geräte-Sicherungshalters mit Lüftungsschlitzen;
- Fig. 2
- eine alternative Ausführungsform zu Fig. 1 in einer Schnittdarstellung;
- Fig. 3
- eine Schnittdarstellung einer weiteren alternativen Ausführungsform eines Geräte-Sicherungshalters mit Lüftungsschlitzen;
- Fig. 4a, 4b
- eine Seitenansicht und eine geschnittene Draufsicht eines Geräte-Sicherungshalters;
- Fig. 5a, 5b
- eine alternative Ausführungsform zu Fig. 4a, 4b;
- Fig. 6
- eine weitere Alternative zu 4a, 4b;
- Fig. 7
- einen Längsschnitt durch eine weitere Ausführungsform eines Geräte-Sicherungshalters und
- Fig. 8
- eine Schnittdarstellung einer weiteren Ausführungsform eines Geräte-Sicherungshalters.
Claims (12)
- Geräte-Sicherungshalter, bestehend aus einem Unterteil und einem Einsatzträger, die aus einem thermoplastischen Kunststoff hergestellt sind, dadurch gekennzeichnet, daßLüftungsschlitze (8)in der Wandungdes Unterteils (3) und/oder des Einsatzträgers (4) angeordnet sind.
- Geräte-Sicherungshalter nach Anspruch 1, dadurch gekennzeichnet, daß die Lüftungsschlitze (8) parallel oder senkrecht zu einer Mittelachse (9) des Sicherungshalters (1) verlaufen und die Wandung derart durchsetzen, daß sich durchgehende Luftströmungen bilden können.
- Geräte-Sicherungshalter nach einem oder beiden der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Lüftungsschlitze (8) nur das Unterteil (3) des Geräte-Sicherungshalters (1) durchlaufen.
- Geräte-Sicherungshalter, bestehend aus einem Unterteil und einem Einsatzträger, die aus einem thermoplastischen Kunststoff hergestellt sind, dadurch gekennzeichnet, daß das Unterteil (3) bezüglich der Einbaulage an dem innerhalb eines Gerätes liegenden Teil eine vergrößerte Oberfläche (10) aufweist.
- Geräte-Sicherungshalter nach Anspruch 4, dadurch gekennzeichnet, daß die Oberfläche (10) des Unterteils (3) durch Aufschieben und/oder Verrasten und/oder Aufschrauben einer Hülse (11) vergrößerbar ist.
- Geräte-Sicherungshalter nach einem der mehreren der Ansprüche 4 und 5, dadurch gekennzeichnet, daß die Hülse (11) metallisch ist.
- Geräte-Sicherungshalter, bestehend aus einem Unterteil und einem Einsatzträger, die aus einem thermoplastischen Kunststoff hergestellt sind, dadurch gekennzeichnet, daß das Unterteil (3) mit mindestens einem wärmeableitenden Element (15) verbunden ist.
- Geräte-Sicherungshalter nach Anspruch 7, dadurch gekennzeichnet, daß das wärmeableitende Element (15) einstückig mit dem Unterteil (3) verbunden ist.
- Geräte-Sicherungshalter nach Anspruch 7 und/oder Anspruch 8, dadurch gekennzeichnet, daß das wärmeableitende Element (15) zur Befestigung des Geräte-Sicherungshalters (1) in einer Wand eines Gehäuses verrastet.
- Geräte-Sicherungshalter nach einem der mehreren der Ansprüche 7 bis 9, dadurch gekennzeichnet, daß das wärmeableitende Element (15) und elektrische Kontakte (7) vor dem Vergießen mit einem thermoplastischen Kunststoff einstückig miteinander verbunden sind und nachfolgend getrennt werden, insbesondere beim Auseinanderfahren von Spitzgußformen.
- Geräte-Sicherungshalter nach einem der mehreren der vorherstehenden Ansprüche, dadurch gekennzeichnet, daß der Geräte-Sicherungshalter (1) in ein Aufnahmeloch (2a) einer Montageplatte (2) eines Gerätes einsetzbar ist.
- Geräte-Sicherungshalter nach einem der mehreren der Ansprüche, dadurch gekennzeichnet, daß der Geräte-Sicherungshalter (1) von einer Rückseite (18) einer Montageplatte (2) zur Frontseite (19) hin einbaubar ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29622501U | 1996-12-20 | ||
DE29622501U DE29622501U1 (de) | 1996-12-20 | 1996-12-20 | Geräte-Sicherungshalter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0849764A1 true EP0849764A1 (de) | 1998-06-24 |
EP0849764B1 EP0849764B1 (de) | 2002-10-02 |
Family
ID=8033860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97121034A Expired - Lifetime EP0849764B1 (de) | 1996-12-20 | 1997-11-29 | Geräte-Sicherungshalter |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0849764B1 (de) |
AT (1) | ATE225566T1 (de) |
DE (2) | DE29622501U1 (de) |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2668888A (en) * | 1950-09-14 | 1954-02-09 | Gen Motors Corp | Fuse holder |
DE942821C (de) * | 1953-04-24 | 1956-05-09 | Efen Elektrotech Fab | Einbau-Sicherungselement |
FR1337709A (fr) * | 1962-10-31 | 1963-09-13 | Licentia Gmbh | Installation de commutation électrique comportant des éléments de sécurité |
DE1463125A1 (de) * | 1964-09-19 | 1969-01-23 | Elektropa Elektrotechn Spez Fa | Isolierkoerper fuer Schmelzsicherungen |
DE1463471A1 (de) * | 1963-10-25 | 1969-03-27 | Pfisterer Elektrotech Karl | Schalt- und Sicherungsarmatur |
US3828291A (en) * | 1973-06-14 | 1974-08-06 | Mc Graw Edison Co | Protector for electric circuit |
US4060785A (en) * | 1976-09-13 | 1977-11-29 | Kearney-National Inc. | Enclosing structure for a high voltage electric fuse |
GB2113490A (en) * | 1982-01-13 | 1983-08-03 | Schurter Ag | A fuse holder |
EP0095610A2 (de) * | 1982-05-11 | 1983-12-07 | McGraw-Edison Company | Sicherungshalter |
US5148351A (en) * | 1991-05-02 | 1992-09-15 | G & W Electric Company | Cooling apparatus for enclosed current limiting fuses |
US5214565A (en) * | 1992-01-31 | 1993-05-25 | Fujitsu Network Transmission Systems, Inc. | Fuse holder heat sink bracket |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1547779A (fr) * | 1967-10-17 | 1968-11-29 | Perfectionnements aux bouchons filetés pour la fixation amovible des cartouches fusibles sur les boîtes de dérivation électrique | |
CH607319A5 (en) * | 1975-12-29 | 1978-11-30 | Weber Ag Fab Elektro | Fuse holder with support flange for instrument panel |
CH642213A5 (en) * | 1977-07-08 | 1984-03-30 | Int Standard Electric Corp | Electrical device with a plug-in socket arranged in an opening in a plate or wall of the device |
US4508412A (en) * | 1982-03-08 | 1985-04-02 | Littelfuse, Inc. | Fuse holder |
DE8412947U1 (de) * | 1984-04-27 | 1984-07-19 | Leopold Kostal GmbH & Co KG, 5880 Lüdenscheid | Elektrisches Aggregat |
DE8520876U1 (de) * | 1985-07-19 | 1985-08-29 | Rapp & Link GmbH, 7730 Villingen-Schwenningen | Kontaktgeber mit belüftetem Bezeichnungsschild zur Abführung bzw. Verhinderung von Betauung |
US4755146A (en) * | 1987-06-04 | 1988-07-05 | Molex Incorporated | Heat-dissipating socket connector for leaded modules |
US4772759A (en) * | 1987-09-23 | 1988-09-20 | United Technologies Automotive, Inc. | Ventilated splash resistant electrical component housing |
-
1996
- 1996-12-20 DE DE29622501U patent/DE29622501U1/de not_active Expired - Lifetime
-
1997
- 1997-11-29 DE DE59708374T patent/DE59708374D1/de not_active Expired - Fee Related
- 1997-11-29 AT AT97121034T patent/ATE225566T1/de not_active IP Right Cessation
- 1997-11-29 EP EP97121034A patent/EP0849764B1/de not_active Expired - Lifetime
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2668888A (en) * | 1950-09-14 | 1954-02-09 | Gen Motors Corp | Fuse holder |
DE942821C (de) * | 1953-04-24 | 1956-05-09 | Efen Elektrotech Fab | Einbau-Sicherungselement |
FR1337709A (fr) * | 1962-10-31 | 1963-09-13 | Licentia Gmbh | Installation de commutation électrique comportant des éléments de sécurité |
DE1463471A1 (de) * | 1963-10-25 | 1969-03-27 | Pfisterer Elektrotech Karl | Schalt- und Sicherungsarmatur |
DE1463125A1 (de) * | 1964-09-19 | 1969-01-23 | Elektropa Elektrotechn Spez Fa | Isolierkoerper fuer Schmelzsicherungen |
US3828291A (en) * | 1973-06-14 | 1974-08-06 | Mc Graw Edison Co | Protector for electric circuit |
US4060785A (en) * | 1976-09-13 | 1977-11-29 | Kearney-National Inc. | Enclosing structure for a high voltage electric fuse |
GB2113490A (en) * | 1982-01-13 | 1983-08-03 | Schurter Ag | A fuse holder |
EP0095610A2 (de) * | 1982-05-11 | 1983-12-07 | McGraw-Edison Company | Sicherungshalter |
US5148351A (en) * | 1991-05-02 | 1992-09-15 | G & W Electric Company | Cooling apparatus for enclosed current limiting fuses |
US5214565A (en) * | 1992-01-31 | 1993-05-25 | Fujitsu Network Transmission Systems, Inc. | Fuse holder heat sink bracket |
Also Published As
Publication number | Publication date |
---|---|
ATE225566T1 (de) | 2002-10-15 |
EP0849764B1 (de) | 2002-10-02 |
DE59708374D1 (de) | 2002-11-07 |
DE29622501U1 (de) | 1997-02-20 |
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