EP2988312A1 - Fuse module - Google Patents

Abstract

Fuse module with a) a housing (2) with a contour, in particular a first opening (4) for insertion or placement of a fuse module (5), b) conductor insertion openings (6, 7) for inserting conductor ends (8, 9) into connection devices (10, 11) in the housing (2), c) with actuating openings (12, 13) for actuating the connecting devices for connecting the conductor ends, d) wherein the one of the two conductor connection devices for a conductor end (8, 9) is conductively connected directly to a first terminal contact (20) for connection to a superordinate assembly, and e) wherein the other of the two connection devices (11) for a conductor end (8, 9) is conductively connectable via the fuse module (5) and a disconnect contact (27) with a second terminal contact (21) for connection to a superordinate assembly, f) wherein a relative to the housing (2) movable multi-functional element (35) is provided, i. which is designed as a separating and / or switching element with which the isolating contact (27) can be closed and / or opened and ii. which is also designed as a cover, with which one or more of the actuating openings (11, 12) of the housing (2) are concealable or exposable so that they are not accessible or accessible for operating the connection devices (10, 11) for the conductor ends ,   

Description

The invention relates to a security module with a housing having a contour, in particular a first opening for insertion or placement of a fuse block, with Leitereinführöffnungen for introducing conductor ends in connection devices in the housing, and with actuating openings for actuating the connection devices for connecting the conductor ends, wherein one of the both conductor terminal devices for a conductor end is directly conductively connected (via a conductive connection) to a first connection contact for connection to a higher-level assembly, and wherein the other of the two connection devices for one conductor end conductively via the fuse block and a release contact with a second Terminal contact for connection to a parent assembly is conductively connected.

Such backup modules are known per se. To be prevented with simple structural means unintentional pulling of one or both conductors and / or fuse block under load.

The invention has the object to solve this problem.

The invention solves this problem by the subject matter of claim 1. Thereafter, a relative to the housing movable multi-functional element is provided, which is formed on the one hand as a switching element with which the isolating contact closable and / or openable (ie can be opened) and that on the other hand a cover is formed, with which one or more of the actuating openings of the housing are completely or partially coverable and exposable, so that they are not accessible or accessible.

In this way, with only one movement and preferably only one part, both the isolating contact can be switched and the actuation openings can be released or covered. Unintentional pulling the fuse or a conductor under load is thus prevented. Rather, it must first be moved to the multi-functional element in its other position.

It is advantageous that the multi-functional element is designed as a one-piece or possibly multi-piece formed multi-functional element such that in one of its positions the isolating contact is open and the actuating openings are released in the housing and that closed in the other position of the isolating contact and conceals the actuating openings in the housing are.

The invention is particularly advantageous for connection devices for conductor ends, which are designed as direct plug contacts and preferably a pusher have to release a clamping spring. The invention is not limited to connection devices for conductor ends, which are designed as direct plug contacts. Rather, it is also suitable for connection devices for conductor ends, which are designed in a different connection technology.

Thus, the connection devices can also be designed as tension spring connections or screw connections or as insulation-penetrating contacts, insofar as these are designed such that they require an actuating opening in a housing in order to be able to release the conductor end. In a screw connection, for example, with the cover elements / areas of the multi-functional element, the screws of the terminals would be accessible in one position with an open isolating contact and not in the other position with a closed isolating contact.

Further advantageous embodiments are specified in the remaining subclaims.

Fig. 1

in a) eine perspektivische Ansicht eines Sicherungsmoduls nebst einem Sicherungseinsatz für das Sicherungsmodul und zwei Leiterenden mit einem Mehrfunktionselement in einer ersten Stellung; in b) eine Sprengansicht der Anordnung aus a); in c) eine Variante des Sicherungsmoduls aus a) in einem in zwei Teilgehäuse zerlegten Zustand; und in d) eine perspektivische Ansicht eines Teils einer Metallbaugruppe des Sicherungsmoduls aus a) nebst einem Mehrfunktionselement; in e) eine perspektivische Ansicht des Sicherungsmoduls aus a) nebst dem Sicherungseinsatz für das Sicherungsmodul und zwei Leiterenden mit dem Mehrfunktionselement in einer zweiten Stellung.

The invention will be described in more detail with reference to the drawing with reference to an embodiment. It shows:

Fig. 1

in a) a perspective view of a fuse module together with a fuse link for the fuse module and two conductor ends with a multi-functional element in a first position; in b) an explosive view of the arrangement of a); in c) a variant of the security module of a) in a disassembled in two sub-housing state; and in d) a perspective view of a part of a metal subassembly of the security module from a) together with a multi-functional element; in e) a perspective view of the fuse module of a) in addition to the fuse link for the fuse module and two conductor ends with the multi-functional element in a second position.

Fig. 1 shows a security module 1 with a housing 2 with a plurality of outer sides 3a. b, c, d, e and f. Two of these outer sides 3a, 3f - here opposite outer sides - are designed as connection sides E, A for connection to external electrical or electronic assemblies. The housing 2 has a substantially cuboid, preferably rectangular and further preferably elongated geometry here.

The housing 2 has on its first connection side E a first opening 4 for inserting a fuse module 5. In addition, two conductor insertion openings 6, 7 for introducing conductor ends 8, 9 into connection devices 10, 11 (see also FIG Fig. 1 b) inside the housing 2 as well as actuating openings 12, 13 for actuating the connection devices for connecting the conductors and / or for releasing the conductors.

The connection devices are designed here as so-called direct plug spring terminals (also called push-in terminals). They each have an actuating member - a pusher 14, 15 -, with each of which a clamping spring 16, 17 is movable in the interior of the housing 2 in an open position, so that a conductor end is removable (and / or insertable).

Each of the two connection devices 10, 11 is connected via a conductive connection, in particular a busbar arrangement 18, 19 with further connection contacts 20, 21. In the present case, these connection contacts 20, 21 are designed as connecting tulips which are designed for contacting (not shown here) blade contacts of an external electrical and / or electronic assembly or the like (the latter is not shown here). The connection contacts are here formed on the connection side A opposite terminal side E and accessible.

One of the two conductor connection devices for a conductor end 11 is connected directly to the first connection contact 20 via a busbar connection.

The other of the two connection devices 10 for a conductor end 8, 9 is also conductive - via a conductive connection with conductive elements - with the associated other terminal contact 21 conductively connected. In this realized with these conductive elements conductive connection is on tulip contacts 22, 23 removable the fuse block 5 with a fuse 24 with contacts 25, 26 used. In addition, in the conductive connection, a separable contact 27 (hereinafter isolating contact 27 (see Fig. 1 d) called) provided.

The housing 2 has here a peripheral flange 28. It is designed to be used with an area with the connection contacts 20, 21 in a (not shown here) frame to contact there corresponding contacts, such as blade contacts, a parent assembly not shown here. In this case, one of the connection devices 10 for a conductor end 8 is directly connected to the corresponding connecting device 20 on the second connection side and the other of the connection devices 11 for a conductor end 9 is conductively protected by the fuse of the fuse module and connected via the isolating contact 27 with the second connection contact 21 on the second connection side E.

The fuse module can be inserted into a recess 29 on the first connection side A of the housing 2. The fuse block 5 has an actuating lever 30. This actuating lever 30 is here provided with release contours 31, with which it is supported on corresponding abutment contours 33 in the housing 2. The actuating lever 30 and its release contours 31 and the abutment contours 33 are tuned and designed such that the actuating lever 30 when pivoting the fuse module 5 releases from its contact position, so that it is removable from the housing 2 to the fuse of the fuse block. 5 to check or change.

So that the fuse block 5 is not pulled out with the fuse as possible under load from its contact position, a multi-functional element 35 is provided. Here, this multi-functional element 35 is designed as a (preferably one-piece) slide which, on and in the housing 2, is moved from a first position (FIG. Fig. 1a ) is displaceable in a second position.

The multi-functional element 35 is on the one hand a disconnector, with which the isolating contact 27 can be opened. For this purpose, the multi-functional element 35 preferably has a sword 35a, with which in the closed state of the isolating contact 27 resilient contact legs / areas are separable, so that the conductive connection between the contact legs is interrupted. In this state, the fuse block can be pulled because there is no voltage difference between the fuse contacts 22, 23 of the fuse block 5.

The multi-functional element 35 is also a cover element with one or more cover sections 35b, c, which are designed here in such a way that they are in one position (FIG. Fig. 1 e) cover the actuating openings 12, 13 in the housing 2 and in the other position ( Fig. 1a ). In this free state ( Fig. 1a ), the actuating openings 12, 13 are accessible so that the connection devices 10, 11 can be opened for conductors and the conductor ends can be removed.

In the present case, the two connection devices for the conductor ends 8, 9 are each formed as direct plug contacts. Therefore, here the clamping springs 16, 17, here with the preferably provided pushers 14, 15, are opened in order to take out the conductor ends can.

This removal of the conductor ends can be done accordingly only if the multi-functional element 35, here the slide, is in its disconnected position or has been moved into it, so that the isolating contact 27 is opened.

The multi-function element 35a further comprises an actuating lug 35d. Here, the actuating projection 35d protrudes from the housing 2. The actuating projection 35d is designed such that the multi-functional element 35a is moveable, preferably displaceable, between the first and the second position on it by hand or with a tool such as a pair of pliers.

In the present case, the connection devices 10, 11 for conductor ends - as already explained - designed as a direct plug-in terminal (s). These each have a conductive clamping cage 36 and each acting as a compression spring (and preferably V-shaped) clamping spring 16, 17 for fixing the electrical conductor end in the Direktsteckklemme by pressing against the inner wall of the clamping cage 36. In this case, each clamping spring 16, 17 a about a pivot axis in a pivoting direction pivotable clamping leg on a latching state (R) in which it is locked to a holding means 37, is adjustable by moving the electrical conductor into a clamping state in which it is unlocked by the holding means 37 and the electrical Conductor 6 against the busbar - here the clamping cage - presses. Here, the holding means 37 is designed as a spring with an undercut 38. This is advantageous for introducing very finely stranded or multi-stranded conductors, but not mandatory.

It should also be mentioned that the housing 2 is designed as a multi-part housing (see in particular Fig. 1 c) , This has a first housing part 39, which is a second housing part 40 to the parent housing 2 joined together.

Serve for this purpose Fig. 1 by way of example, in the upper area of the housing parts, form and / or force-locking means, in particular clamping and / or locking pins 41 on one housing part 39 and corresponding clamping holes 42 on the other housing part 40 and / or corresponding latching means 43, 44 on the two housing parts 39, 40th

The fuse link 6 can be inserted into the first housing part 39. The conductors, however, can be inserted into the second housing part 40. In the housing parts 39, 40, the receptacle 29 are formed for the fuse block 5 and corresponding receiving chambers 45, 46 are provided for the connection devices 10, 11 for the conductor ends.

The clamping cage 36b of one of the two terminal devices 11 for a conductor end goes here directly at a lower end in the one of the terminal contacts 20, which is particularly simple and inexpensive.

The other clamping cage 36a of the other terminal device 11 for a conductor end, however, via the isolating contact 27 ( Fig. 1 d) guided in the other housing part.

A wall of the clamping cage 36a is the one part of the isolating contact 27. On this wall is a resiliently deflectable clamping and busbar leg 47 with bias conductive contacting. With the separating blade 35a of the clamping and busbar leg 47 is separable from the wall of the clamping cage.

The clamping and busbar leg 47 is conductively connected to the one of the tulip contacts 22 for the fuse block 5. The other of the tulip contacts 23 is connected to the second of the connection contacts 21 on the connection side A of the housing 2.

The multi-functional element 35 is displaceably guided in the displacement direction X perpendicular to the conductor insertion direction Y in the one of the two housing parts 39, 40.

The separating blade 35a is advantageously located here with the actuating projection 35d on the connection side A. Of the actuating projection 35d, the separating blade 35a extends into the first housing part in such a way that in the first position of the isolating contact 27 is opened and in the other position of the isolating contact 27 is closed. The cover portions 35b, c extend perpendicular to the sword and to the conductor insertion direction in the XZ plane. Overall, the housing 2 and the multi-functional element are preferably made of a non-conductive plastic.

LIST OF REFERENCE NUMBERS

security module

1

casing

2

outsides

3a. b, c, ...

connection sides

E, A

opening

4

fuse block

5

Conductor insertion openings

6, 7

conductor ends

8, 9

connecting devices

10, 11

actuating ports

12, 13

handle

14, 15

clamping spring

16, 17

Busbar configuration

18, 19

terminals

20, 21

tulip contacts

22, 23

fuse

24

contacts

25, 26

isolating contact

27

flange

28

recess

29

actuating lever

30

solvent contours

31, 32

Abutment contours

33, 34

More functional element

35

separating sword

35a

cover sections

35b, c

actuating extension

35d

clamping cage

36

holding means

37

undercut

38

housing parts

39, 40

latching pin

41

terminal holes

42

latching means

43, 44

receiving chambers

45, 46

Clamp and busbar legs

47

Claims (15)

Fuse module with a) a housing (2) with a contour, in particular a first opening (4) for insertion or placement of a fuse module (5), b) conductor insertion openings (6, 7) for inserting conductor ends (8, 9) into connection devices (10, 11) in the housing (2), c) with actuating openings (12, 13) for actuating the connecting devices for connecting the conductor ends, d) wherein the one of the two conductor connection devices for a conductor end (8, 9) is conductively connected directly to a first terminal contact (20) for connection to a superordinate assembly, and e) wherein the other of the two connection devices (11) for a conductor end (8, 9) is conductively connectable via the fuse module (5) and a disconnect contact (27) with a second terminal contact (21) for connection to a superordinate assembly, f) wherein a relative to the housing (2) movable multi-functional element (35) is provided, i. which is designed as a separating and / or switching element with which the isolating contact (27) can be closed and / or opened and II. which is also designed as a cover, with which one or more of the actuating openings (11, 12) of the housing (2) are concealable or exposable so that they are not accessible or accessible for operating the connection devices (10, 11) for the conductor ends Securing module according to one of the preceding claims, characterized in that the multi-functional element (35) is designed as a slide, which is displaceably guided on and / or in the housing (2), wherein the multi-functional element (35) further as a separating blade (35a) is, with which the isolating contact (27) can be opened. Securing module according to one of the preceding claims, characterized in that on the multi-functional element (35) an actuating portion (35d) is formed, and that the actuating portion (35d) protrudes from the housing. Securing module according to one of the preceding claims, characterized in that one or more of the connection devices (10, 11) each have an actuating element which is arranged in each case in the connecting device associated actuating opening (12, 13) movable. Fuse module according to one of the preceding claims, characterized in that the connection device is designed as a spring clip, as a screw terminal or as insulation piercing terminal. Fuse module according to one of the preceding claims, characterized in that the spring clip is designed as a direct plug-in terminal with a compression spring or that the spring clip is designed as a tension spring clamp. Securing module according to one of the preceding claims, characterized in that the actuating element as a pusher (14, 15) is formed or that the actuating element is designed as a screw. Fuse module according to one of the preceding claims, characterized in that the one of the two conductor connection devices (10, 11) for a conductor end (8, 9) is directly fixedly connected via a busbar connection with the first connection contact (21) and that preferably the other the two conductor connection devices for a conductor end (10) via the isolating contact and the fuse of the fuse block with the other of the terminal contacts (20) is conductively connected. Fuse module according to one of the preceding claims, characterized in that the fuse module (5) with a fuse (24) with contacts (25, 26) on tulip contacts (22, 23) removable in the housing (2) can be inserted, wherein the fuse module ( 5) can be inserted into a recess (29) of the housing (2) and / or that the securing component (5) has an actuating lever (30). Fuse module according to one of the preceding claims, characterized in that the housing (2) is designed as a multi-part housing, which has a first housing part (39) which is connected to a second housing part (40) to the parent housing (2), wherein the fuse link (6) in the first housing part (39) can be inserted and that the conductor ends in the second housing part (40) can be inserted. Securing module according to one of the preceding claims, characterized in that the clamping cage (36b) of the one of the two connecting devices (11) merges directly at a lower end into one of the connection contacts (21) and preferably the other clamping cage (36a) of the other connection device (11) for one conductor end is guided via the isolating contact (27) into the other housing part. Securing module according to one of the preceding claims, characterized in that the multi-functional element (35) is displaceably guided in the displacement direction X perpendicular to the conductor insertion direction Y in the one of the two housing parts (39, 40). Securing module according to one of the preceding claims, characterized in that the multi-functional element with the actuating lug (35d) rests on the connection side A, that extends from the actuating lug (35d) the separating blade (35a) in the first housing part in such that in the first Position of the multi-functional element (35) of the isolating contact (27) open and in the other position of the isolating contact (27) is closed. Securing module according to one of the preceding claims, characterized in that the cover portions (35b, c) extend perpendicular to the sword and the conductor insertion in the XZ plane. Security module according to one of the preceding claims, characterized in that the housing (2) and the multi-functional element (35) consist of a non-conductive plastic.

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