DE102018005478A1 - Fuse contact device for a motor vehicle - Google Patents

Abstract

The invention relates to a fuse contact device (10) for a motor vehicle, having a base body (12) made of an electrically conductive material, which has a connection region (16) in which at least one electrical line (18) is connected to the base body (12). The base body (12) has a contact region (14) which is designed to contact a securing element. At least two electrical lines (18) are connected to the main body (12) in the connection region (16). The base body (12) has a strain relief region (26) in which respective sheaths (24) of the at least two electrical lines (18) formed of an electrically insulating material are fixed in their position relative to the base body (12).

Description

The invention relates to a fuse contact device for a motor vehicle, having a base body made of an electrically conductive material, which has a connection region. At least one electrical line is connected to the base body in the connection region. The main body has a contact region, which is designed to contact a fuse element.

Currently, it is customary to contact a motor vehicle in a fuse with only one line, which leads to a respective consumer of the motor vehicle.

For example, this describes DE 10 2009 058 682 A1 a fuse arrangement in which a fuse is connected on the one hand with a distributor plate and on the other hand with a connection tongue. At the connection tongue a line is connected via a crimp connection.

To enable multiple occupancy of a single backup, additional contacts would have to be provided. Alternatively, the use of a cable connector is possible, which is also referred to as a splice. The provision of multiple contacts or the provision of a splice, however, mean the need to hold additional space. In addition, this entails additional costs.

The provision of additional contacts for connecting a plurality of consumers or the provision of a splice for connecting lines leading to respective consumers is therefore disadvantageous.

Object of the present invention is therefore to provide a fuse contact device of the type mentioned, which is particularly flexible and reliable.

This object is achieved by a fuse contact device having the features of patent claim 1. Advantageous embodiments with expedient developments of the invention are specified in the dependent claims.

The fuse contact device according to the invention for a motor vehicle comprises a base body made of an electrically conductive material which has a connection region. At least one electrical line is connected to the main body in the connection region of the main body. Furthermore, the base body has a contact region, which is designed to contact a securing element. In order to provide a particularly flexible and functionally reliable fuse contact device, it is provided here that at least two electrical lines are connected to the main body in the connection region. In addition, the body has a strain relief. In the strain relief region, respective casings of the at least two electrical lines formed from an electrically insulating material are fixed in their position relative to the base body.

The fuse contact device makes it possible, depending on the provided equipment of the motor vehicle, to connect a plurality of consumers to the main body of the fuse contact device by means of respective electrical lines. A respective fuse or the fuse element, which is contacted by the contact region of the main body, so can be assigned equipment-specific with multiple consumers. Consequently, the fuse contact device is very flexible. In this case, no additional space requirement is necessary, and there are no additional costs.

Furthermore, it is ensured by the strain relief of the body that a respective desired number of leading to respective consumers lines are fixed in their position. This increases the reliability of the fuse contact device. Namely, a peeling effect can be particularly largely prevented, in which the lines are loosened or withdrawn transversely to their longitudinal direction of the main body. Depending on the number of consumers to be protected via the fuse element, a different number of electrical lines can also be fixed in their position in the strain relief region. Furthermore, several lines with different sized cross sections in the strain relief can be fixed in position. This also applies if the at least two lines have larger cross-sectional jumps. This is based on the knowledge that in the manufacture of motor vehicles wiring harnesses are often manufactured customer-specific. Thus, it is possible for the number of consumers, which are to be protected by a fuse contact device, to vary as a result of the particular equipment desired by the customer. The protection of the consumer happens here by the contact area of the fuse contact device with the fuse element, such as in the form of a fuse, is electrically connected. The respective, in particular customer-specific constellation of consumers can be ideally covered with the fuse contact device described here. Because there are no additional fuses or additional contact devices needed. Rather, several consumers can be electrically connected via the respective electrical connection of the respective consumer by means of the fuse contact device to a common fuse element.

The value of the electric current for which a fuse element in a motor vehicle is usually designed is limited downwards. Thus, in motor vehicles, in particular, no fuses are used, which are designed for particularly small currents. It therefore makes sense, especially for small consumers, to combine several of these small consumers and to place them by means of the fuse contact device on a fuse element or a fuse.

Preferably, the sheaths of the at least two electrical leads are embedded in an adhesive in the strain relief region. Because bonding as a mechanical strain relief has the advantage that an introduction of adhesive in the strain relief can be implemented highly automated. Furthermore, it is thus possible to dispense with a shrink-tubing element which, however, can optionally additionally be provided in the strain relief region.

If the sheaths of the at least two electrical lines are fixed in place in the strain relief area by crimping, more crimped material, ie plastically deformable material in the form of copper, is required for this purpose than is the case when the adhesive is provided in the strain relief area , Because for the crimping of the electrically insulating sheath wings are to be provided during the production of the respective main body, which are then plastically deformed during crimping. If the main body of the fuse contact device are made approximately by punching out of a metal sheet, a comparatively large distance is to be provided between each two main bodies in the direction of extent of the wings. As a result, comparatively much waste or waste is produced during the production of the basic bodies designed for crimping.

In addition, the crimping parameters must be readjusted depending on the number of electrical leads to be connected in the connection area. However, these crimping parameters are difficult to set and difficult to monitor depending on the number of wires and the position of the wires. This problem does not exist when using the adhesive. Thus, by embedding the at least two electrical leads in the adhesive in the strain relief region, process reliability in manufacturing the fuse contactor is increased.

This is especially true when the base body in the strain relief region has a U-profile, wherein the adhesive between a first leg and a second leg of the U-profile or, in particular angular, trough profile is arranged.

The at least two electrical lines can be connected to the base body in the connection region by welding, in particular by friction welding and / or by ultrasonic welding.

Additionally or alternatively, the at least two electrical lines in the connection region can be connected to the base body by crimping and / or soldering.

Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawings. The features and feature combinations mentioned above in the description as well as the features and feature combinations mentioned below in the description of the figures and / or in the figures alone can be used not only in the respectively specified combination but also in other combinations or in isolation, without the scope of To leave invention.

• 1 eine Sicherungskontakteinrichtung für ein Kraftfahrzeug, bei welcher mehrere elektrische Leitungen in einem Anschlussbereich an einen Grundkörper der Sicherungskontakteinrichtung angeschlossen sind;
• 2 in einer vergrößerten Detaildarstellung einen Zugentlastungsbereich der Sicherungskontakteinrichtung gemäß 1;
• 3 eine Querschnittsansicht des Zugentlastungsbereichs gemäß 2;
• 4 eine Möglichkeit, die elektrischen Leitungen in dem Zugentlastungsbereich der Sicherungskontakteinrichtung durch Crimpen zu fixieren; und
• 5 eine weitere Möglichkeit der Fixierung der elektrischen Leitungen unter Verwendung eines Schrumpfschlauchelements und optional Klebstoff in dem Zugentlastungsbereich.

Showing:

• 1 a fuse contact device for a motor vehicle, in which a plurality of electrical lines are connected in a connection region to a main body of the fuse contact device;
• 2 in an enlarged detail of a strain relief of the fuse contact according to 1 ;
• 3 a cross-sectional view of the strain relief according to 2 ;
• 4 a way to fix the electrical wires in the strain relief of the fuse contact device by crimping; and
• 5 Another possibility of fixing the electrical lines using a shrink tubing and optional adhesive in the strain relief.

In the figures, identical or functionally identical elements are provided with the same reference numerals.

In 1 is in perspective a fuse contact device 10 shown for a motor vehicle, which is a substantially plate-shaped body 12 made of an electrically conductive material. The fuse contact device 10 serves to be connected to a (not shown) fuse or a fuse element, which may be formed for example as a fuse. To connect to the fuse, the body 12 a contact area 14 or a contact zone. The contact area 14 So it is intended to contact the fuse.

Furthermore, the basic body 12 a connection area 16 in which a plurality of electrical lines 18 to the body 12 are connected. In the connection area 16 For example, a welding zone 20 on the body 12 be educated. In the welding zone 20 are, in particular by means of a friction welding process or an ultrasonic welding process, respective electrical conductors 22 the lines 18 with the main body 12 electrically connected. The wires 18 can in the connection area 16 However, by crimping or soldering electrically conductive to the body 12 be connected. Every single one of the wires 18 leads to a respective consumer (not shown) of the motor vehicle. Accordingly, by means of the fuse contact device 10 according to 1 several consumers via the respective lines 18 with the fuse, in particular fuse, connectable.

In particular from 3 . 4 and 5 it can be seen that the respective electrical lines 18 the respective electrical conductor 22 and a shell formed of an electrically insulating material 24 include. These covers 24 the lines 18 are in a strain relief area 26 of the basic body 12 in their position relative to the main body 12 fixed.

According to a in 2 shown embodiment, the main body 12 for this purpose in the strain relief area 26 have a U-profile in cross-section. Here are the lines 18 between a first leg 28 and a second leg 30 arranged the U-profile.

In 3 is the strain relief area 26 according to 2 shown in a schematic cross section. Accordingly, the lines 18 in the strain relief area 26 between the thighs 28 . 30 in a filling compound in the form of an adhesive 32 embedded. The wires 18 can, as exemplified herein, with a floor or back 34 of the U-profile to be in abutment or from the back 34 be spaced, which is the two legs 28 . 30 connects with each other.

If the main body 12 the U-profile or such, in this case rectangular tray shape in the Zugentlastungsbereich 26 has, can the mechanical strain relief by introducing the adhesive 32 in the U-profile particularly simple and reliable process can be achieved.

At the in 4 shown variant of the strain relief 26 are the wires 18 in the strain relief area 26 fixed in position by crimping. Accordingly, the thighs 28 . 30 or wing plastically deformed.

At the in 5 shown in cross-section variant of the strain relief 26 are the basic body 12 and the wires 18 together with their covers 24 in the strain relief area 26 from a shrink tube 36 or a shrink tubing surrounded. In addition, the lines 18 and also the basic body 12 inside the shrink tubing 36 optional in the adhesive 32 embedded.

Out 3 . 4 and 5 is also clear that also lines 18 with different diameters or cross sections in the strain relief area 26 can be securely fixed in their position. Such a fixation can also be achieved if the at least two lines 18 in the strain relief area 26 have relatively different diameter or cross sections.

Especially for small power consumers, it makes sense in terms of cost, this with the above-described fuse contact device 10 to hedge via a common fuse or the fuse element.

LIST OF REFERENCE NUMBERS

10

Fuse contact means

12

body

14

contact area

16

terminal area

18

management

20

welding zone

22

ladder

24

shell

26

Strain relief

28

leg

30

leg

32

adhesive

34

move

36

shrinkable tubing

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102009058682 A1 [0003]

Claims (7)

Fuse contact device for a motor vehicle, having a base body (12) of an electrically conductive material, which has a connection region (16) in which at least one electrical line (18) is connected to the base body (12) and which has a contact region (14). characterized in that in the connection region (16) at least two electrical lines (18) to the base body (12) are connected, wherein the base body (12) has a strain relief region (26), in which respective, formed from an electrically insulating material sheaths (24) of the at least two electrical lines (18) are fixed in their position relative to the base body (12). Fuse contact device according to Claim 1 , characterized in that the sheaths (24) of the at least two electrical leads (18) in the strain relief region (26) are embedded in an adhesive (32). Fuse contact device according to Claim 2 , characterized in that the base body (12) in the strain relief region (26) has a U-profile, wherein the adhesive (32) between a first leg (28) and a second leg (30) of the U-profile is arranged. Fuse contact device according to one of Claims 1 to 3 , characterized in that the sheaths (24) of the at least two electrical leads (18) are fixed in place in the strain relief region (26) by crimping. Fuse contact device according to one of Claims 1 to 4 , characterized in that the base body (12) and the sheaths (24) of the at least two electrical lines (18) in the strain relief region (26) are surrounded by a shrink tubing element (36). Fuse contact device according to one of Claims 1 to 5 , characterized in that the at least two electrical lines (18) in the connection region (18) by welding, in particular by friction welding and / or by ultrasonic welding, are connected to the base body (12). Fuse contact device according to one of Claims 1 to 6 , characterized in that the at least two electrical lines (18) in the connection region (16) by crimping and / or soldering to the main body (12) are connected.

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