EP2689497A1

EP2689497A1 - Electrical plug connector and insulating body

Info

Publication number: EP2689497A1
Application number: EP12701100.5A
Authority: EP
Inventors: Wolfgang Langhoff; Sven Filipon; Martin Dörr; Tobias Härter; Heinrich Straub
Original assignee: Amphenol Tuchel Electronics GmbH
Current assignee: Amphenol Tuchel Electronics GmbH
Priority date: 2011-03-22
Filing date: 2012-01-18
Publication date: 2014-01-29
Anticipated expiration: 2032-01-18
Also published as: DE102011001471A1; WO2012126644A1; EP2689497B1

Abstract

The present invention relates to an electrical plug connector having at least one plug contact (2, 3, 4), a power line (5, 6, 7) which is connected to the plug contact (2, 3, 4) and an insulating body (14) which at least partially surrounds the power line (5, 6, 7), characterized in that the insulating body (14) has at least one cooling channel (25, 26, 27) for directly applying a fluid insulating means (31) to the power line (5, 6, 7). The present invention also relates to an insulating body (14) for insulating a power line (5, 6, 7) of an electrical plug connector (1), having at least one cooling channel (25, 26, 27) for directly applying a fluid insulating means (31) to the power line (5, 6, 7).

Description

Electrical connector and insulator

Description

The present invention relates to an electrical connector according to claim 1 and an insulating body according to claim 10.

In particular, electrical interfaces for transmitting high power, such as for connecting the electric traction rotor for a

Hybrid or electric vehicles are limited in their performance on the one hand and their size on the other. On the one hand, a high performance is required and on the other hand the smallest possible size, so that existing geometries need not be changed.

A high current load leads to a strong warming, which in particular affects interfaces and leads to a reduction in the efficiency of the entire power transmission. Correspondingly, plug connectors are limited in their current carrying capacity and corresponding specifications or limit temperatures are specified.

Especially in automotive applications is an increase in

Current carrying capacity or current carrying capacity at the same time increased life requirements of the connector required. At the same time there is the requirement that the dimensions or dimensions of such electrical connectors or contact systems as well as the weight ni cht be greater.

Of course, there is also the requirement of a cost-effective

Production.

Object of the present invention is therefore to provide an electrical

Specify connector or an insulating body, in which the current carrying capacity is increased or the power heating is reduced, at the same time optimally B auraumun g exploit.

This object is achieved with the features of claims 1 and 10.

Advantageous developments of the invention are specified in the subclaims. The scope of the invention also includes all

Combinations of at least two of i n the Descripti, the claims and / or the figures given characteristics. At specified

Value ranges should also be regarded as limit values within the limits mentioned above and be able to be claimed in any combination.

The invention is based on the idea of direct cooling

current-carrying part with a fluid insulating agent, in particular by integration in an existing circuit to increase the current carrying capacity significantly.

According to the invention is egg insulator with at least one cooling channel for effecting a directed to the power line flow of a fluid

Isoli ermittels provided by the flow of the busbars with. in particular cooled oil is made possible. The power line can

According to the invention as a plug contact, in particular as angled crimp contact, be ausgebi Ldet. As a result, in comparison with the state of the art, it is referred to as identical

Conditions Operating temperatures of the electrical connector are less than 1 20 ° C, which can be stored at approximately 1 70 ° C without cooling. Thus, the electrical connector as electrical interface Stel le in a transmission can be integrated, so that the existing within the transmission

Oil circuit or the existing Ö l is used as a fluid insulating agent.

The insulating body according to the invention can be constructed so that it has a distribution structure in the form of at least one cooling channel, through which the fluid insulating means is felt on the busbars to be cooled.

The fluid insulating agent may be formed in particular as a fluid dielectric.

According to an advantageous embodiment of the invention, it is provided that at least two, in particular, parallel, are present for each current line

leaving, cooling channels are provided. By providing several

Cooling channels i st ei ne targeted flow of extremely heating areas within the electrical connector possible, so that prevails within the el ektrische connector as uniform a temperature as possible.

As far as the Iso lierkörper a, in particular integrally formed on the insulator, collection basin for accumulation of the fluid Isoli ermittel s on the

Cooling channel / the cooling channels, can be a uniform and

effective admission of cooling, current-carrying component e by the fluid insulating guaran stet.

It is particularly advantageous if the cooling channel at least partially, in particular predominantly runs in the S ammelbecken. Furthermore, it is inventively advantageous if the cooling channel extends at least partially, in particular predominantly, on the outside of the insulating body. In this way, a targeted flow at the lowest

Space available.

By the cooling channel the insulating body, in particular at the bottom of the

Sammelbeckens, interspersed, the fluid insulating agent is advantageously passed directly to the components to be cooled.

Advantageously, according to an advantageous embodiment of the invention, that the insulating body, in particular at least partially formed by the cooling channel, precipitation surface is provided for precipitation of the fluid insulating means. In particular, in the case of droplet or vapor-like presence of the fluid insulating agent, for example a lubricating oil in the transmission, in particular in the intermediate bell of the transmission, accumulation of the fluid insulating agent in the reservoir is quasi automatically achieved without any special energy expenditure.

According to an advantageous alternative, on the insulating body,

be provided in particular at the reservoir, a connection for an oil line, so that by this measure a stronger cooling, in particular an adjustable cooling, can be provided.

According to the invention ^', the present invention particularly as integratable in a transmission or integrated connector is suitable. In this area, particularly high electricity loads are required by the automotive industry with minimal space and the fluid insulating agent is already in the form described according to the invention.

As an independent invention is an insulating body for the isolation of a

Flow line of an electrical connector with at least one Cooling channel for direct loading of the power line provided with a fluid insulating means.

Other advantages, features and details of the invention will become apparent from the description of preferred Ausführungsbei games and on the basis of

Drawing. 1 shows a perspective view of an electrical connector according to the invention,

Figure 2 is a perspective view of the electrical connector

according to FIG. 1,

Figure 3 is a perspective view of the electrical connector

according to FIG. 1 with the insulating body removed,

Figure 4 is a perspective view of the insulating body and

5 shows a plan view of the electrical connector according to FIG. 1

In the figures, the same or equivalent components with the same

Reference number marked.

Figure 1 shows an electrical connector 1 with three mutually parallel, socket-shaped electrical plug contacts 2, 3, 4. The plug contacts 2, 3, 4 are used for connection to corresponding

Contact pins for producing an electrical plug connection. At the plug contacts 2, 3, 4 each formed as a busbars 5, 6, 7 power lines are electrically connected or integral with these

formed (for example in the form of an angled crimp contact), wherein the busbars 5, 6, 7 parallel to each other and at an angle to the plug contacts 2, 3, 4 extend. At the opposite end of the busbars 5, 6, 7 lines 8, 9, 10 are electrically connected to the busbars 5, 6, 7, in particular in the form of flat stranded wires.

The plug contacts 2, 3, 4 are surrounded by cylindrical insulating bodies 11, 12, 13.

To isolate the slide rails 5, 6, 7 in the direction of the plug contacts 2, 3, 4, the busbars 5, 6, 7 receiving, box-shaped insulating body 15, 16, 17 are provided. The insulating body 15, 16, 17 may be formed integrally with the insulating bodies 11, 12, 13. The insulating body each have latching lugs 18, 18 ', 19, 19', 20, 20 'on the side, which for latching with corresponding latching elements 21, 21', 22, 22 ', 23, 23' of a

Insulator 14 serve. In Figure 3, the insulating body 14 is shown removed so that the between the corresponding locking lugs 18, 18 'and locking elements 21, 21', and between the locking lugs 19, 19 'and the locking elements 22, 22' and between the locking lugs 20, 20th ' and the

Locking elements 23, 23 'to be formed latching connections are solved. In the other figures, the insulating body 14 with the insulating bodies 15, 16, 17 is locked.

In the illustrated embodiment, thus, the insulating body 14 serves as a common insulating body for the three busbars 5, 6, 7, which are aligned parallel by the insulating body 14 and held or fixed. The insulating body 14 therefore fulfills a dual function, namely insulation and mounting / fixing of the connector. 1

On a side facing away from the plug contacts 2, 3, 4 outside 24 of the insulating body 14 parallel to each other and parallel to the busbars 5, 6, 7 extending cooling channels 25, 26, 27 are provided. The cooling channels 25 are associated with the busbar 5, while the cooling channels 26 of the

Busbar 6 and the cooling channels 27 of the busbar 7 are assigned. The cooling channels 25, 26, 27 are formed by parallel, projecting from the outside 24 intermediate walls 28 and extend approximately over half of the outer side 24th

The cooling channels 25, 26, 27 and the outside 24 serve as

Nieder impact surface for precipitation of a fluid insulating 31, in particular a gear provided in the lubricating oil. By

arranged according to the figures, installation of the connector 1 in a pressurized with the fluid insulating means 31 gear interior is finely divided, in particular in droplet form or as

Oil vapor present insulating agent on the precipitation surface down and runs due to gravity along the outside 24 from top to bottom, wherein the fluid insulating 31 is guided through the cooling channels 25, 26, 27.

Through the cooling channels 25, 26, 27, in particular the intermediate walls 28, the effective surface area of the precipitation surface is increased, so that more fluid insulating 31 reflected on the precipitation surface.

The fluid insulating means 31 is collected at the lower end of the outer side 24 of the insulating body 14 in a collecting basin 29. At a bottom 30 of the collecting basin, the outer side 24 at the lower end of the

Cooling channels 25, 26, 27 of the cooling channels 25, 26, 27 passes through, so that the collected in the reservoir 29 fluid insulating 31, the

Busbars 5, 6, 7 and the connected electrical conductors 8, 9, 10 acted upon, as shown in Figure 5 by droplets.

The busbars 5, 6, 7 are thus at least partially cooled directly and in the areas where the fluid insulating 31 does not directly to the busbars 5, 6, 7, is an indirect cooling by the

Guaranteed outside 24 of the insulating 14. The reservoir can be increased by a laterally angled th Beckenberei ch 32. The pool area 32 may alternatively or additionally have a line connection, not shown, for connecting an oil line, so that targeted oil can be supplied to the S ammelbecken. It is conceivable according to the invention, run the reservoir 29 closed.

Electrical connector and insulator

C o m p a n c e m e n t i o n s

Connectors

plug contact

busbars

electrical conductor

insulator

, 18 'locking lugs

, 19 'locking lugs

, 20 'locking lugs

, 21 'locking elements

locking elements

, 23 'locking elements

outside

cooling channels

cooling channels Cooling channels

Partition walls sump floor

fluid insulating agent pelvic area

Claims

Electrical connector and insulator P atent to backplate

1. Electrical connector with

- at least one plug contact (2, 3, 4),

- One with the plug contact (2, 3, 4) electrically connected

Power line (5, 6, 7) and

- An insulating body (14) at least partially enclosing the power line (5, 6, 7), characterized in that the insulating body (14) at least one cooling channel (25, 26, 27) for direct loading of the power line (5, 6, 7) having a fluid insulating means (31).

An electrical connector according to claim 1, wherein for each

Power line (5, 6, 7) at least two, in particular parallel

extending, cooling channels (25, 26, 27) are provided.

Electrical connector according to one of the preceding

Claims, wherein the insulating body (14), in particular on the insulating body (14) integrally formed, collecting basin (29) for accumulation of the fluid insulating means 31 on the cooling channel (25, 26, 27) / den

Cooling channels (25, 26, 27).

Electrical connector according to one of the preceding

Claims in which the cooling channel (25, 26, 27) extends at least partially, in particular predominantly, in the collecting basin (29).

Electrical connector according to one of the preceding

Claims in which the cooling channel (25, 26.27) extends at least partially, in particular predominantly, on an outer side (24) of the insulating body (14).

Electrical connector according to one of the preceding

Claims in which the cooling channel (25, 26, 27) passes through the insulating body (14), in particular at the bottom (30) of the collecting basin (29).

Electrical connector according to one of the preceding

Claims in which the insulating body (14) is a, in particular at least partially by the cooling channel (25, 26, 27) formed, precipitation surface for precipitation of the fluid insulating means (31) is provided. Electrical connector according to one of the preceding

Claims, in which on the insulating body (14), in particular on

Sump (29), a connection for an oil line is provided.

In a gearbox integrable or integrated connector according to one of the preceding claims.

Insulating body (14) for Isolierimg a power line (5, 6, 7) of an electrical connector (1) having at least one cooling channel (25, 26, 27) for direct loading of the power line (5, 6, 7) with a fluid insulating means (31 ).