EP2242082B1 - Holder for fuses - Google Patents
Holder for fuses Download PDFInfo
- Publication number
- EP2242082B1 EP2242082B1 EP10158291.4A EP10158291A EP2242082B1 EP 2242082 B1 EP2242082 B1 EP 2242082B1 EP 10158291 A EP10158291 A EP 10158291A EP 2242082 B1 EP2242082 B1 EP 2242082B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cover plate
- holder
- fuse
- holder according
- receiving shaft
- 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.)
- Not-in-force
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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
- H01H85/547—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers with sliding fuse carrier
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- 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
- H01H85/25—Safety arrangements preventing or inhibiting contact with live parts, including operation of isolation on removal of cover
-
- 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
- H01H85/22—Intermediate or auxiliary parts for carrying, holding, or retaining fuse, co-operating with base or fixed holder, and removable therefrom for renewing the fuse
Definitions
- the invention relates to a holder for fuses, in particular for cylindrical fuses.
- the DE 1 246 848 discloses a fuse switch disconnector with a housing and a spring-adjustable cover which carries the fuses. Inside the housing are insulating walls, which brings the insulating walls in an inoperative position when switching on by shifting the cover in the on state, while in the off state, the insulating walls hold the contacts in the housing within a protective layer. The insulating walls can be actuated via slide.
- a holder for fuses in particular for cylindrical fuses, having an opening to a receiving shaft having housing, in which contacts are provided for at least one fuse, with a receptacle arranged adjustably in the cover, preferably in the form of a cover plate, and a retaining retainer movably guided in the receiving shaft, the cover plate having means engaging with guides formed on the housing and holding the cover plate at a predetermined position within the housing and opposite the contacts, the cover plate being spring-loaded is biased and the cover plate is releasably engageable by means of a coupling device on the fuse holder, wherein the cover plate has openings for receiving the coupling device and wherein the means of the cover plate engage in the guides of the housing and the guides have stops and / or stop surfaces.
- the holder according to the invention has a cover, preferably in the form of a cover plate, which is displaceably mounted in the receiving shaft together with the fuse holder.
- the cover plate is locked in a position away from the bottom of the holder as soon as the fuse holder is removed, thereby covering the contacts thereunder and preventing access of the operator by means of the fingers or the like.
- the cover plate is displaced by the fuse holder in the direction of the ground within the receiving shaft, to the extent that the fuse located in the fuse holder can be inserted with the electrical contacts in associated electrical contacts.
- the cover plate is biased by a spring means.
- the Cover plate is further provided with means which fixes the cover plate with the fuse holder removed in an upper position, so that the receiving shaft is blocked from access with fingers.
- the fuse holder according to the invention is used in particular for the use of special fuses cylindrical design, especially for photovoltaic systems with voltages of z. B. 1200 V.
- the holder has an opening to a receiving shaft, within which a fuse retaining device is arranged displaceably and removably, which is engageable or disengaged from a cover, preferably in the form of a cover, can be brought.
- the housing of the holder preferably consists of two housing shells, within which the receiving shaft for the securing holder is defined.
- the fuse holder can be compared to the receiving shaft move in two mutually opposite directions with the aim that the fuse holder for the purpose of replacing the fuse can be completely removed from the receiving shaft out and can be used after replacing the fuse back into the receiving shaft.
- Fig. 1 is a perspective view of the holder 1 according to the invention for fuses.
- the holder 1 consists preferably of two housing halves 2, 3, which are connected to each other via screw means not shown or the like.
- grooves 6 or the like which are used to carry out fastening in photovoltaic systems are located on the underside designated with 4. Such measures are known per se and will not be explained further.
- lateral access 7, 8 are provided, which are designed for electrical connection of the holder.
- the holder 1 has a fuse holder 10 to be inserted in a receiving shaft to be described, which is provided with a handle 11 by means of which the fuse holder 10 can be displaced relative to the holder 1.
- Fig. 2 illustrates a preferred embodiment of the holder 1 according to the invention, wherein the one shell half 3 is omitted in order to better describe the principle of the holder according to the invention can.
- the fuse holder 10 has the function of a drawer and includes a chamber or a receiving slot 14 for receiving a substantially cylindrical fuse 15.
- the fuse holder 10 is provided with lateral wall portions 16, 17, on the one hand as a guide within the holder 1 and on the other hand to the side Insert the fuse 15 serve.
- a receiving web 18 is formed in the illustrated embodiment, which is a boundary wall of the fuse holder 10 down.
- An upper receiving web 19 limits the space for receiving the fuse 15 upwards.
- each housing shell 2, 3 is provided with a counter guide in the form of guide walls 28, 29 in order to form a guide relative to the wall sections 16, 17 of the securing holder 10.
- the fuse holder 10 is associated with a cover, preferably in the form of a cover plate 30, wherein both the fuse holder 10 and the cover plate 30 along the axis Y ( Fig. 2 ) are displaceable in and out of the receiving shaft 13 out.
- the cover plate 30 can not be completely pushed out of the receiving shaft 13, as will be described below, but by means to be explained at a predetermined upper position ( Fig. 2 ) stopped within the receiving shaft 13 when the fuse holder 10 is pulled out of the receiving shaft 13.
- the Fig. 2 and Fig. 3 show the state in which the fuse holder 10 is removed from the receiving shaft 13.
- the cover plate 30 is in an upper end position in which the cover plate 30 remains and thus the contacts 20, 21 covers or access to fingers or the like to the contacts 20, 21 prevented by the cover plate 30 in a predetermined Distance above the contacts 20, 21 is locked.
- means are provided which cooperate with housing-side guides or the like, as described in more detail below with reference to a preferred embodiment.
- the cover plate 30 is provided with two pairs of laterally projecting feet 32, 33, 34, 35, and each foot pair 32, 33 and 34, 35 has the shape of an inverted V, wherein the foot portions 32 to 35 are provided by the cover plate 30 abstrebend down and have a predetermined elasticity.
- a laterally angled foot portion is formed, as is apparent Fig. 5 is more apparent, wherein Fig. 5 a view of the cover plate from below.
- each foot section 36 of the foot pairs 32, 33, 34, 35 slides along the guides 38, 39 when the cover plate 30 is moved in the direction of the axis Y (FIG. Fig. 2 ) is relocated.
- the cover plate 30 in the in Fig. 2 stop shown in the upper position against further displacement in the direction of the axis Y, in the guides 38, 39 stops or transverse ribs formed in the perspective view of the housing shell 2 in Fig. 7 are shown.
- the guides have a lower portion 38a and 39a within which the foot portions 36 of each leg 32-35 can slide until they abut the transverse ribs 44,45 formed in each housing shell 2,3, with the result that the cover plate 30 is stopped at this respective upper position and, unlike the securing holder 10, is no longer displaced out of the receiving shaft 13.
- the foot portions 36 are formed accordingly, 45 to be displaced in the direction of the axis Y when hitting the transverse ribs 44, 45 can not.
- the legs 32 to 35 abstrebenden foot portions 36 are at an angle of approximately 90 ° relative to the guides 38, 39 of the housing shells 2, 3rd
- the cover plate 30 by means of a spring device 48 (FIG. Fig. 3 ), for example one or more compression springs, is biased into the in Fig. 2 and 3 shown upper position and thus in the retraction of the retaining device 10 from the receiving shaft 13 in Fig. 2 in the direction of the axis Y is moved upward until the in Fig. 2 and 3 shown position, in which the foot portions 36 abut the transverse ribs 44, 45 and the cover plate 30 against further upward movement due to their engagement with the transverse ribs 44, 45 block.
- a spring device 48 for example one or more compression springs
- ratchet teeth 52, 53, a detent or an inclined surface with flank which rises slightly from the bottom of the shell half in the direction of the opening 13 a of the receiving shaft provided.
- These ratchet teeth 52, 53 or the slightly rising from bottom to top oblique surface cause the foot portions 36 come to rest in the space between the transverse ribs 44, 45 and the inclined surface 52, 53 when the cover plate 30, the in Fig. 2 and 3 has reached the position shown, with the effect that the cover plate 30 is held in this position and due to the blockage by the inclined surfaces or teeth 52, 53 remains in this position.
- the slightly rising from the bottom upwards inclined surface 52, 53 is further achieved that the foot sections easily from bottom to top in the space between the transverse ribs 44, 45 and surfaces 52, 53 enter, but are prevented from slipping down.
- the securing fixture 10 is provided with a control device 50, preferably by parallel tongues 50a, 50b striving down the web 18 is formed, wherein the tongues have a width which is preferably at least as large as the distance between the feet 32, 33 and 34, 35.
- coupling means are provided for coupling the cover plate 30 to the fuse holder 10.
- coupling means are provided between the fuse holder 10 and the cover plate 13, which are formed on the underside of the fuse holder 10 according to a further embodiment.
- the coupling device is formed by latching pins 56, 57, which at the receiving web 18 in the direction of the housing bottom 13b abstreben and have a predetermined distance from each other, which in this embodiment is greater than the length of the two tongues 50a, 50b, as shown Fig. 2 and 3 evident.
- Each detent pin 56, 57 is attached by means of a shank 56a or 57a to the downwardly facing surface of the receiving web 18.
- Each detent pin 56, 57 has a pointed end in the illustrated embodiment, each detent pin 56, 57 having an outer diameter greater than the diameter of the shaft 56a, 57a carrying it.
- the width of the portions 30b, 30c corresponds to the width of the receiving opening 13a. In this way, the opening 13 a is almost completely covered when the cover plate 30 their in Fig. 1 and 2 shown position occupies.
- the outer slots 81, 82 having a central, extending over a partial circle portion 81 a, 82 a, whereby the flexibility of the webs 62, 63 is ensured in the region of the respective opening 59 and 60, respectively.
- the arrow-shaped tip of the locking pin 56, 57 is conical and designed to the shape of the openings 59, 60 with respect to the above explanation.
- the lower end position of the cover plate 30 is determined by the foot portions 36 sliding down along the guides 38, 39 until they reach the bottom 13b of the receiving shaft 13 come to rest. Accordingly, the feet 32 to 35 are to be designed such that the cover plate 30 comes to rest in the operating state of the holder below the contacts 20, 21.
- the guides 38, 39 are practically perpendicular to the bottom 13b of the receiving shaft 13 and are provided at a distance from each other along each shell half 2, 3, which corresponds to the distance of the foot pairs 32, 33 and 34, 35.
- connection of the securing holder 10 with the cover plate 30 is facilitated in the illustrated embodiment in that the webs 62, 63 are somewhat flexible, so that when passing the locking pins 56, 57 through the openings 59, 60 or when pulling out the locking pin 56, 57 from the openings 59, 60 only a short time a slightly higher force is applied and at the same time prevents the cover plate 30 is forcibly removed from the receiving shaft 13 when removing the fuse holder 10.
- the guides 38, 39 are formed in the two housing shells 2, 3 inside and provided symmetrically to each other.
- the housing shells 2, 3 as well as the fuse holder 10 and the cover plate 30 are preferably made of an insulating material, preferably plastic.
- the opening 13a of the receiving shaft 13 is secured by the cover plate 30 and thus a finger contact protection against the contacts 20, 21 ensures that subsequently during insertion of the fuse holder 10 the cover plate 30 is lowered into the receiving shaft 13 and vice versa in the removal of the fuse holder 10 is ensured that the cover plate 30 is also pulled back into their access to the contacts 20, 21 preventing position to remain in the relevant position, until the securing holder 10 is inserted again into the receiving shaft 13.
- the portions 30 b and 30 c of the cover plate 30 are formed by projections which define a total width corresponding to the width of the receiving shaft 13.
Landscapes
- Fuses (AREA)
Description
Die Erfindung betrifft einen Halter für Sicherungen, insbesondere für zylindrische Sicherungen.The invention relates to a holder for fuses, in particular for cylindrical fuses.
Die
In der
Das Dokument "
Beim Einsatz von Halterungen für Sicherungen ist es erforderlich, die Sicherungen nach einer bestimmten Betriebszeit zu überprüfen bzw. nach einem Durchschmelzen auszutauschen.When using fuses for fuses, it is necessary to check the fuses after a certain period of operation or to replace them after melting.
Der Erfindung liegt die Aufgabe zugrunde, einen Halter für Sicherungen zu schaffen, der insbesondere eine hohe Bediensicherheit gewährleistet und ein leichtes Austauschen von Sicherungen, auch unter Spannung, ermöglicht.The invention has for its object to provide a holder for fuses, which ensures in particular a high operating safety and easy replacement of fuses, even under tension, allows.
Diese Aufgabe wird erfindungsgemäß gelöst bei einem Halter für Sicherungen, insbesondere für zylindrische Sicherungen, mit einem eine Öffnung zu einem Aufnahmeschacht aufweisenden Gehäuse, in welchem Kontakte für mindestens eine Sicherung vorgesehen sind, mit einer im Aufnahmeschacht verstellbar angeordneten Abdeckung, vorzugsweise in Form einer Abdeckplatte, und einer im Aufnahmeschacht verstellbar geführten Sicherungshalteeinrichtung, wobei die Abdeckplatte Mittel aufweist, die mit am Gehäuse ausgebildeten Führungen in Eingriff stehen und die Abdeckplatte an einer vorbestimmten Position innerhalb des Gehäuses und gegenüber den Kontakten distanziert halten, wobei die Abdeckplatte mittels einer Feder-einrichtung vorgespannt ist und die Abdeckplatte mittels einer Kupplungseinrichtung an der Sicherungshalteeinrichtung lösbar ankuppelbar ist,
wobei die Abdeckplatte Öffnungen aufweist zur Aufnahme der Kupplungseinrichtung und wobei die Mittel der Abdeckplatte in die Führungen des Gehäuses eingreifen und die Führungen Anschläge und/oder Anschlagflächen aufweisen.This object is achieved with a holder for fuses, in particular for cylindrical fuses, having an opening to a receiving shaft having housing, in which contacts are provided for at least one fuse, with a receptacle arranged adjustably in the cover, preferably in the form of a cover plate, and a retaining retainer movably guided in the receiving shaft, the cover plate having means engaging with guides formed on the housing and holding the cover plate at a predetermined position within the housing and opposite the contacts, the cover plate being spring-loaded is biased and the cover plate is releasably engageable by means of a coupling device on the fuse holder,
wherein the cover plate has openings for receiving the coupling device and wherein the means of the cover plate engage in the guides of the housing and the guides have stops and / or stop surfaces.
Der erfindungsgemäße Halter weist eine Abdeckung, vorzugsweise in Form einer Abdeckplatte auf, die zusammen mit der Sicherungshalteeinrichtung im Aufnahmeschacht verschieblich gelagert ist. Beim Entnehmen der Sicherungshalteeinrichtung wird die Abdeckplatte in eine vom Boden des Halters entfernten Position arretiert, sobald die Sicherungshalteeinrichtung entnommen wird, wodurch die darunter sich befindlichen Kontakte abgedeckt werden und ein Zugriff der Bedienungsperson mittels den Fingern oder ähnlichem verhindert wird. Beim Einschieben der Sicherungshalteeinrichtung wird die Abdeckplatte durch die Sicherungshalteeinrichtung in Richtung auf den Boden innerhalb des Aufnahmeschachts verlagert, soweit, dass die in der Sicherungshalteeinrichtung befindliche Sicherung mit den elektrischen Kontakten in zugeordnete elektrische Kontakte eingelegt werden kann. Bei einer bevorzugten Ausführungsform wird die Abdeckplatte durch eine Federeinrichtung vorgespannt. Die Abdeckplatte ist weiterhin mit Mitteln versehen, welche die Abdeckplatte bei entfernter Sicherungshalteeinrichtung in einer oberen Position fixiert, so dass der Aufnahmeschacht gegenüber einem Zugriff mit Fingern blockiert ist.The holder according to the invention has a cover, preferably in the form of a cover plate, which is displaceably mounted in the receiving shaft together with the fuse holder. When the fuse holder is removed, the cover plate is locked in a position away from the bottom of the holder as soon as the fuse holder is removed, thereby covering the contacts thereunder and preventing access of the operator by means of the fingers or the like. When inserting the fuse holder, the cover plate is displaced by the fuse holder in the direction of the ground within the receiving shaft, to the extent that the fuse located in the fuse holder can be inserted with the electrical contacts in associated electrical contacts. In a preferred embodiment, the cover plate is biased by a spring means. The Cover plate is further provided with means which fixes the cover plate with the fuse holder removed in an upper position, so that the receiving shaft is blocked from access with fingers.
Der erfindungsgemäße Halter für Sicherungen dient insbesondere zum Einsatz von Spezialsicherungen zylindrischer Gestaltung, insbesondere für Photovoltaikanlagen mit Spannungen von z. B. 1200 V. Der Halter weist eine Öffnung zu einem Aufnahmeschacht auf, innerhalb welchem verschieblich und herausnehmbar eine Sicherungshalteeinrichtung angeordnet ist, die in Eingriff bzw. außer Eingriff gegenüber einer Abdeckung, vorzugsweise in Form einer Abdeckplatte, verbringbar ist. Das Gehäuse des Halters besteht vorzugsweise aus zwei Gehäuseschalen, innerhalb welchen der Aufnahmeschacht für die Sicherungshalteeinrichtung definiert ist. Die Sicherungshalteeinrichtung lässt sich gegenüber dem Aufnahmeschacht in zwei zueinander entgegengesetzten Richtungen verlagern mit dem Ziel, dass die Sicherungshalteeinrichtung zum Zwecke des Auswechselns der Sicherung vollständig aus dem Aufnahmeschacht heraus entnommen werden kann und nach dem Auswechseln der Sicherung wieder in den Aufnahmeschacht eingesetzt werden kann.The fuse holder according to the invention is used in particular for the use of special fuses cylindrical design, especially for photovoltaic systems with voltages of z. B. 1200 V. The holder has an opening to a receiving shaft, within which a fuse retaining device is arranged displaceably and removably, which is engageable or disengaged from a cover, preferably in the form of a cover, can be brought. The housing of the holder preferably consists of two housing shells, within which the receiving shaft for the securing holder is defined. The fuse holder can be compared to the receiving shaft move in two mutually opposite directions with the aim that the fuse holder for the purpose of replacing the fuse can be completely removed from the receiving shaft out and can be used after replacing the fuse back into the receiving shaft.
Unterhalb der Sicherungshalteeinrichtung ist innerhalb des Aufnahmeschachtes eine Abdeckung, vorzugsweise in Form einer Abdeckplatte, verschiebbar gelagert, die bei einer bevorzugten Ausführungsform über einen vorgegebenen Bewegungsweg mit der Sicherungshalteeinrichtung gekoppelt ist und bei der Entnahme der Sicherungshalteeinrichtung an einer bestimmten Position innerhalb des Aufnahmeschachts gegenüber der Sicherungshalteeinrichtung entkoppelt wird und innerhalb des Aufnahmeschachts zum Abdecken der im Gehäuse befindlichen elektrischen Kontakte verbleibt, wodurch eine Bedienungsperson gehindert wird, mit den Fingern in Richtung auf die Kontakte zu greifen. Beim Einsetzen der Sicherungshalteeinrichtung wird die Abdeckung in Richtung auf den Boden des Aufnahmeschachts verlagert. Die Abdeckplatte ist mit Mitteln versehen, welche die Abdeckplatte in einer vorgegebenen, vom Boden des Aufnahmeschachts entfernten Position halten, wenn die Sicherungshalteeinrichtung aus dem Aufnahmeschacht entfernt ist, wodurch der Aufnahmeschacht in Richtung auf die darunter befindlichen elektrischen Kontakte abgedeckt wird. Beim Einsetzen der Sicherungshalteeinrichtung wird die Abdeckplatte im Aufnahmeschacht nach unten verlagert, wodurch die elektrischen Kontakte freigegeben werden zum Einbringen der Sicherung, die sich in der Sicherungshalteeinrichtung befindet.Below the fuse holder a cover, preferably in the form of a cover plate, slidably mounted within the receiving shaft, which is coupled in a preferred embodiment over a predetermined path of movement with the fuse holder and decoupled when removing the fuse holder at a certain position within the receiving shaft relative to the fuse holder and remains within the receiving well for covering the electrical contacts in the housing, thereby preventing an operator from reaching with their fingers towards the contacts. When inserting the fuse holder, the cover is displaced in the direction of the bottom of the receiving shaft. The cover plate is provided with means which hold the cover plate in a predetermined, away from the bottom of the receiving shaft position when the fuse holder is removed from the receiving shaft, whereby the receiving shaft is covered in the direction of the underlying electrical contacts. Upon insertion of the fuse holder, the cover plate in the receiving shaft is displaced downwards, whereby the electrical contacts are released for introducing the fuse, which is located in the fuse holder.
Bei einer bevorzugten Ausführungsform ist vorgesehen, dass zwischen der Abdeckplatte und der Sicherungshalteeinrichtung Kupplungseinrichtungen vorgesehen sind, um die Sicherungshalteeinrichtung mit der Abdeckplatte zu verbinden, so dass beim Einsetzen der Sicherungshalteeinrichtung ab einem bestimmten Bewegungsweg die Sicherungshalteeinrichtung zusammen mit der Abdeckplatte in den Aufnahmeschacht hinein verlagert wird und beim Entnehmen der Sicherungshalteeinrichtung die Abdeckplatte zusammen mit der Sicherungshalteeinrichtung über einen vorgegebenen Bewegungsweg innerhalb des Aufnahmeschachtes in Richtung auf dessen Öffnung verlagert wird bis zu einer vorgegebenen Position, in welcher eine Trennung zwischen Sicherungshalteeinrichtung und Abdeckplatte erfolgt, mit dem Ziel, dass die Abdeckplatte in einer "oberen" Position, in welcher ein Zugang zu den elektrischen Kontakten innerhalb des Gehäuses nicht mehr möglich ist, verbleibt und damit die gewünschte Fingersicherheit gewährleistet.In a preferred embodiment, provision is made for coupling devices to be provided between the cover plate and the securing holding device in order to connect the securing holding device to the cover plate so that the securing holding device is displaced together with the cover plate into the receiving shaft when the securing holder is inserted beyond a certain movement path and when removing the fuse holder, the cover plate is displaced together with the fuse holder via a predetermined path within the receiving shaft in the direction of the opening up to a predetermined position in which a separation between the fuse holder and cover plate, with the aim that the cover in a " upper "position in which access to the electrical contacts within the housing is no longer possible, and thus ensures the desired finger safety eistet.
Nachfolgend werden bevorzugte Ausführungsformen des erfindungsgemäßen Halters anhand der Zeichnungen zur Erläuterung weiterer Merkmale beschrieben. Es zeigen:
- Fig. 1
- eine Perspektivansicht des erfindungsgemäßen Halters,
- Fig. 2 und Fig. 3
- Ansichten des Halters, wobei eine Gehäusehälfte zur Verdeutlichung entfernt ist,
- Fig. 4
- eine Ansicht einer bevorzugten Ausführungsform einer Sicherungshalteeinrich- tung,
- Fig. 5
- eine Ansicht einer Abdeckung, von unten gesehen,
- Fig. 6
- eine Ansicht der Abdeckung, von oben betrachtet,
- Fig. 7
- eine Ansicht einer Gehäusehälfte, von innen betrachtet, zur besseren Erläute- rung der Führungen, und
- Fig. 8
- eine Teilschnittansicht durch die Abdeckung.
- Fig. 1
- a perspective view of the holder according to the invention,
- Fig. 2 and Fig. 3
- Views of the holder, with a housing half removed for clarity,
- Fig. 4
- a view of a preferred embodiment of a fuse holder device,
- Fig. 5
- a view of a cover, seen from below,
- Fig. 6
- a view of the cover, viewed from above,
- Fig. 7
- a view of a housing half, viewed from the inside, for better explanation of the guides, and
- Fig. 8
- a partial sectional view through the cover.
Innerhalb des Halters 1, bestehend aus den beiden Gehäuseschalenhälften 2, 3, befindet sich ein Aufnahmeschacht 13, in welchen die Sicherungshalteeinrichtung 10 eingeschoben werden kann. Die Sicherungshalteeinrichtung 10 hat die Funktion einer Schublade und beinhaltet eine Kammer bzw. einen Aufnahmeschlitz 14 zur Aufnahme einer im Wesentlichen zylindrischen Sicherung 15. Die Sicherungshalteeinrichtung 10 ist mit seitlichen Wandabschnitten 16, 17 versehen, die einerseits als Führung innerhalb des Halters 1 und andererseits zum seitlichen Einfassen der Sicherung 15 dienen. An der Unterseite der Sicherungshalteeinrichtung 10 ist bei der dargestellten Ausführungsform ein Aufnahmesteg 18 ausgebildet, der eine Begrenzungswand der Sicherungshalteeinrichtung 10 nach unten darstellt. Ein oberer Aufnahmesteg 19 begrenzt den Raum zur Aufnahme der Sicherung 15 nach oben hin.Within the
Im Folgenden wird auch auf die
Wie sich insbesondere den
Weiterhin ist jede Gehäuseschale 2, 3 mit einer Gegenführung in Form von Führungswänden 28, 29 versehen, um eine Führung gegenüber den Wandabschnitten 16, 17 der Sicherungshalteeinrichtung 10 zu bilden.Furthermore, each
Der Sicherungshalteeinrichtung 10 ist eine Abdeckung, vorzugsweise in Form einer Abdeckplatte 30, zugeordnet, wobei sowohl die Sicherungshalteeinrichtung 10 als auch die Abdeckplatte 30 entlang der Achse Y (
Die
In
Bei einer bevorzugten Ausführungsform ist vorgesehen, dass die Abdeckplatte 30 mittels einer Federeinrichtung 48 (
In den Führungen 38, 39 sind unterhalb der Querrippen 44, 45 und zu diesen beabstandet entsprechend der Darstellung nach
Um die gegenüber den Führungen 38, 39 beider Schalenhälften 2, 3 arretierten Füße 32 bis 35 zu dearretieren, ist gemäß einer bevorzugten Ausführungsform die Sicherungshalteeinrichtung 10 mit einer Steuereinrichtung 50 versehen, die vorzugsweise durch am Steg 18 nach unten abstrebende, parallele Zungen 50a, 50b gebildet ist, wobei die Zungen eine Breite haben, die vorzugsweise mindestens so groß ist wie der Abstand zwischen den Füßen 32, 33 bzw. 34, 35. Wenn die Sicherungshalteeinrichtung 10 zusammen mit der Sicherung 15 in den Aufnahmeschacht 13 eingeführt wird aus der in
Durch das Zusammendrücken der Fußpaare 32, 33 bzw. 34, 35 kommen die Fußabschnitte 36 außer Eingriff mit den Flanken der Schrägflächen 52, 53, so dass ein Herabfahren der Abdeckplatte 30 in Richtung auf den Boden 13b des Aufnahmeschachts 13 möglich ist.By compressing the pair of
Diese Ausführungsform ist derart ausgestaltet, dass die Sicherungshalteeinrichtung 10 über ein vorbestimmtes Maß in Richtung des Aufnahmeschachtes 13 zu verlagern ist, so weit, bis die parallel zu den Gehäuseschalen 2, 3 verlaufenden Zungen 50a, 50b über die Fußpaare 32, 33 bzw. 34, 35 verfahren werden, so weit, dass die Abdeckplatte 30 innerhalb des Zwischenraums der Zungen 50a, 50b gelangt und dann die Fußabschnitte 36 durch Zusammendrücken aus ihrer Arretierposition verlagert werden können.This embodiment is configured such that the securing
Bei einer bevorzugten Ausführungsform, die eine Federeinrichtung 48 enthalten kann, aber nicht enthalten muss, sind Kupplungsmittel vorgesehen, um die Abdeckplatte 30 mit der Sicherungshalteeinrichtung 10 zu kuppeln. Bei einer bevorzugten Ausführungsform sind zwischen der Sicherungshalteeinrichtung 10 und der Abdeckplatte 13 Kupplungsmittel vorgesehen, die nach einer weiteren Ausführungsform an der Unterseite der Sicherungshalteeinrichtung 10 ausgebildet sind. Bei dieser Ausführungsform wird die Kupplungseinrichtung durch Rastzapfen 56, 57 gebildet, die am Aufnahmesteg 18 in Richtung auf den Gehäuseboden 13b abstreben und einen vorgegebenen Abstand zueinander aufweisen, der bei dieser Ausführungsform größer ist als die Länge der beiden Zungen 50a, 50b, wie aus
Nun wird auf
Die pfeilförmige Spitze des Rastzapfens 56, 57 ist kegelförmig ausgebildet und auf die Formgebung der Öffnungen 59, 60 in Bezug auf die vorstehende Erläuterung gestaltet.The arrow-shaped tip of the locking
Nachfolgend wird die Funktionsweise des erfindungsgemäßen Halters beschrieben.The operation of the holder according to the invention will be described below.
In dem Zustand, in welchem keine Sicherung 15 in den Halter 1 eingesetzt ist, befindet sich die Abdeckplatte 30 in der in
Wenn beim Einsetzen der Sicherungshalteeinrichtung 10 die Abdeckplatte 30 in Richtung auf den Boden 13b des Aufnahmeschachts 13 verlagert wird, wird die untere Endposition der Abdeckplatte 30 bestimmt durch die Fußabschnitte 36, die entlang der Führungen 38, 39 nach unten gleiten, bis sie am Boden 13b des Aufnahmeschachtes 13 zur Auflage gelangen. Dementsprechend sind die Füße 32 bis 35 derart zu gestalten, dass die Abdeckplatte 30 im Betriebszustand des Halters unterhalb der Kontakte 20, 21 zum Liegen kommt. Die Führungen 38, 39 stehen praktisch senkrecht gegenüber dem Boden 13b des Aufnahmeschachts 13 und sind in einem Abstand zueinander entlang jeder Schalenhälfte 2, 3 vorgesehen, der dem Abstand der Fußpaare 32, 33 bzw. 34, 35 entspricht.When the
Wie sich aus den Zeichnungen weiter ergibt, befinden sich die Kontakte 20, 21 innerhalb des Aufnahmeschachts 13, während die mit ihnen verbundenen Klemmen 23, 24 seitlich nach außen verlagert innerhalb des Halters 1 eingesetzt und arretiert sind. Die Lage der Kontakte 20, 21 ist insbesondere aus den
Zusätzlich zur Federeinrichtung 48 oder auch ohne Vorsehen der Federeinrichtung 13 wird die Mitnahme der Abdeckplatte 30 bei der Herausnahme der Sicherungshalteeinrichtung 10 bei einer bevorzugten Ausführungsform dadurch gewährleistet, dass die Rastzapfen 56, 57 in die Öffnungen 59, 60 eingefahren sind und damit die Abdeckplatte 30 mit der Sicherungshalteeinrichtung 10 gekuppelt ist. Bei diesem Ausführungsbeispiel wird während der Bewegung der Sicherungshalteeinrichtung 10 aus dem Aufnahmeschacht 13 heraus durch die Kupplung zwischen der Sicherungshalteeinrichtung 10 und der Abdeckplatte 30 mittels der Rastzapfen 56, 57 die Abdeckplatte 30 so weit nach oben gezogen, bis sie die in
Während des Einführens der Sicherungshalteeinrichtung 10 sowie während der Herausnahme derselben erfolgt über einen vorgegebenen Bewegungsweg eine gleichzeitige Verschiebung von Sicherungshalteeinrichtung 10 und Abdeckplatte 30, wie vorstehend beschrieben.During the insertion of the
Das Verbinden der Sicherungshalteeinrichtung 10 mit der Abdeckplatte 30 wird bei der dargestellten Ausführungsform dadurch erleichtert, dass die Stege 62, 63 in gewisser Weise flexibel sind, so dass beim Durchführen der Rastzapfen 56, 57 durch die Öffnungen 59, 60 bzw. beim Herausziehen der Rastzapfen 56, 57 aus den Öffnungen 59, 60 nur kurzfristig eine etwas höhere Kraft anzuwenden ist und gleichzeitig verhindert wird, dass die Abdeckplatte 30 bei der Herausnahme der Sicherungshalteeinrichtung 10 gewaltsam aus dem Aufnahmeschacht 13 entfernt wird.The connection of the securing
Die Verwendung einer Federeinrichtung 48 ist optional und nicht zwingend erforderlich.The use of a
Die Führungen 38, 39 sind in beiden Gehäuseschalen 2, 3 innenseitig ausgebildet und zueinander symmetrisch vorgesehen. Die Gehäuseschalen 2, 3 wie auch die Sicherungshalteeinrichtung 10 und die Abdeckplatte 30 bestehen vorzugsweise aus einem isolierenden Material, vorzugsweise Kunststoff.The
Durch die vorstehend beschriebene Gestaltung des Halters 1 wird damit erreicht, dass vor dem Einsetzen des Sicherungshalters 10 die Öffnung 13a des Aufnahmeschachtes 13 durch die Abdeckplatte 30 gesichert ist und somit ein Fingerberührungsschutz gegenüber den Kontakten 20, 21 gewährleistet ist, dass anschließend beim Einschieben der Sicherungshalteeinrichtung 10 die Abdeckplatte 30 in den Aufnahmeschacht 13 abgesenkt wird und umgekehrt bei der Herausnahme der Sicherungshalteeinrichtung 10 gewährleistet ist, dass die Abdeckplatte 30 ebenfalls wieder in ihre einen Zugang zu den Kontakten 20, 21 verhindernde Position hochgezogen wird, um in der betreffenden Position zu verbleiben, bis die Sicherungshalteeinrichtung 10 wieder in den Aufnahmeschacht 13 eingesetzt wird.By the above-described design of the
Die Sicherungshalteeinrichtung 10 ist gemäß
In Bezug auf die Rastzapfen 56, 57 ist aus
Die Abschnitte 30b und 30c der Abdeckplatte 30 sind durch Vorsprünge gebildet, die insgesamt eine Breite festlegen, die der Breite des Aufnahmeschachtes 13 entspricht.The
Der erfindungsgemäße Halter ermöglicht in Photovoltaikanlagen mit z. B. 1200 V das Austauschen von Sicherungen bei hoher Bediensicherheit selbst unter Spannung, da bei Entnahme der Sicherungshalteeinrichtung zusammen mit der Sicherung ein Zugriff zu den der Sicherung zugeordneten stationären elektrischen Kontakten durch eine Abdeckplatte wirksam verhindert wird.The holder of the invention allows in photovoltaic systems with z. B. 1200 V replacing fuses with high operating safety even under tension, since upon removal of the fuse holder together with the fuse access to the fuse associated stationary electrical contacts is effectively prevented by a cover plate.
Claims (10)
- Holder for fuses, in particular for cylindrical fuses, comprising a housing (2, 3) which has an opening (13a) to a receiving shaft (13) and in which contacts (20, 21) for at least one fuse (15) are provided,
characterised by a cover, preferably in the form of a cover plate (30), which can be adjusted in the receiving shaft (13), and a fuse holding device (10) guided adjustably in the receiving shaft (13),
the cover plate (30) comprising means (32 to 35, 36) which are engaged with guides (38, 39) formed on the housing (2, 3) and which hold the cover plate (30) at a predetermined position within the housing and at a distance from the contacts (20, 21), the cover plate (30) being biased by means of a spring device (48) and the cover plate (30) being releasably couplable to the fuse holding device (10) by means of a coupling device (56, 57),
the cover plate (30) comprising openings (59, 60) for receiving the coupling device (56, 57),
the means (32 to 35, 36) of the cover plate (30) engaging in the guides (38, 39) of the housing (2, 3) and the guides (38, 39) comprising stops (44, 45) and/or stop faces (52, 53). - Holder according to claim 1, characterised in that the means (32 to 36) of the cover plate (30) are formed by feet which protrude laterally from the cover plate (30).
- Holder according to either claim 1 or claim 2,
characterised in that the coupling device (56, 57) is provided on the fuse holding device (10). - Holder according to claim 3,
characterised in that the coupling device (56, 57) is formed by latch pins, which can be brought into engagement with openings (59, 60) in the cover plate (30). - Holder according to claim 4,
characterised in that the openings (59, 60) in the cover plate (30) are defined by resilient webs (62, 63). - Holder according to claim 1,
characterised in that the cover plate (30) comprises finger portions (64a, 64b), the width of which is smaller than the distance between contact tongues (20a, 20b) of the contacts (20, 21). - Holder according to claim 4,
characterised in that the latch pins (56, 57) are provided on the fuse holding device (10). - Holder according to claim 4,
characterised in that the latch pins (56, 57) comprise an annular portion (70), away from which the latch pin (56, 57) tapers, and in that the latch pin (56, 57) contains a face bevelled from the annular portion (70) towards a shaft (56a, 57a) protruding from the fuse holding device (10). - Holder according to claim 4,
characterised in that the openings (59, 60) in the cover plate (30) are defined by circle-sector-shaped and/or conically tapering web portions (65, 66, 67). - Holder according to claim 1,
characterised in that the fuse holding device (10) is provided with a control device (50a, 50b) for adjusting the means (32 to 36) for locking the cover plate (30) with respect to the housing shells (2, 3).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009017338.2A DE102009017338B4 (en) | 2009-04-14 | 2009-04-14 | Holder for fuses |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2242082A1 EP2242082A1 (en) | 2010-10-20 |
EP2242082B1 true EP2242082B1 (en) | 2014-10-01 |
Family
ID=42338201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10158291.4A Not-in-force EP2242082B1 (en) | 2009-04-14 | 2010-03-30 | Holder for fuses |
Country Status (5)
Country | Link |
---|---|
US (1) | US8384509B2 (en) |
EP (1) | EP2242082B1 (en) |
CN (1) | CN101866793B (en) |
DE (1) | DE102009017338B4 (en) |
ES (1) | ES2517242T3 (en) |
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-
2009
- 2009-04-14 DE DE102009017338.2A patent/DE102009017338B4/en active Active
-
2010
- 2010-03-30 EP EP10158291.4A patent/EP2242082B1/en not_active Not-in-force
- 2010-03-30 ES ES10158291.4T patent/ES2517242T3/en active Active
- 2010-04-12 US US12/758,316 patent/US8384509B2/en active Active
- 2010-04-14 CN CN201010151754.9A patent/CN101866793B/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE102009017338A1 (en) | 2010-10-21 |
DE102009017338B4 (en) | 2016-12-01 |
CN101866793A (en) | 2010-10-20 |
ES2517242T3 (en) | 2014-11-03 |
CN101866793B (en) | 2014-11-05 |
US20100259355A1 (en) | 2010-10-14 |
EP2242082A1 (en) | 2010-10-20 |
US8384509B2 (en) | 2013-02-26 |
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