DE102015216545A1 - Housing assembly, electrical connector comprising a housing assembly and electrical connection assembly comprising an electrical connector - Google Patents

Abstract

The invention relates to a housing arrangement (1) for attaching at least one cable (4) to a screen (43) arranged around a conductor (41) and to an electrical connector (100) comprising at least one such housing arrangement (1) and an electrical connection arrangement comprising one electrical connector. Housing arrangements (1) usually comprise a housing body (2) for receiving a cable end (3). In order to allow a permanently good connection between the screen (43) and the housing body (2), the housing arrangement (1) comprises a pressing member (6) for establishing an electrical connection with the screen (43), the pressing member (6) thereto is configured to exert a pressing force on the screen (43) or on a contact element (5) electrically connected to the screen (43) in a pressing position (P). The pressing force generated by the pressing member (6) provides a good electrical connection with a low contact resistance, wherein the pressing force of the screen (43) or the contact element (5) connected to the screen (43) is held. The occurring vibrations can therefore not deteriorate the connection with the screen (43).

Description

The invention relates to a housing arrangement for mounting at least one cable with a screen arranged around a conductor, an electrical connector comprising at least one such housing arrangement and an electrical connection arrangement comprising an electrical connector and a mating connector.

Housing arrangements usually comprise a housing body for receiving a cable end. Inside the housing body, the conductor may for example be connected to a contact element and connected to a counter element. The screen is often crimped between two sleeves and the outer sleeve inserted into a hole or slot on the housing body. However, especially with heavy vibration loads, such as occur in the automotive sector, the electrical connection between the sleeve and the shaft can be worse over time.

The object of the invention is to provide a solution in which the electrical connection between the screen and the housing body is permanently good even at high loads.

According to the invention this is achieved in that the housing arrangement comprises a pressing member for producing an electrical connection to the screen, wherein the pressing member is adapted to exert a pressing force on the screen or on a contact element electrically connected to the screen in a pressing position. An inventive electrical connector comprises a housing arrangement according to the invention. A connection arrangement according to the invention comprises an electrical connector according to the invention and a mating connector.

The pressing force generated by the pressing member provides a good electrical connection with a low contact resistance, the pressing force holding the screen or the contact element connected to the screen firmly. The vibrations that occur can therefore not impair the connection with the screen.

The solution according to the invention can be further improved with the following developments, which are advantageous in each case and can be combined with one another as desired.

The contact element electrically connected to the screen may be fixedly connected thereto, for example by a crimp connection, a solder connection or a welded connection. Such a connection can be permanently low-resistance, so that a good current conductivity is given.

In an advantageous embodiment, a movement of the screen or of the contact element relative to the housing body is possible in a connection position. As a result, it may be possible to insert the cable into the housing body. In this case, the screen or the contact element connected to the screen can be freely movable to the housing body or easily grind on this. During the transfer to the pressing position, the screen or the contact element can be held by the pressing member, whereby a mobility can be limited.

The pressing member and the housing body may be integral with each other. For example, the pressing member may be a deformable sleeve which is formed on the housing body. Such a configuration can be particularly easy to manufacture and in storage. The sleeve can be permanently deformed, for example after insertion of the cable. The sleeve thus exerts a permanent pressing force directly on the screen or the contact element connected to the screen.

In a further embodiment, the pressing member and the housing body may be separate elements. These elements can be connected to each other. In particular, by a connection of the pressing member with the housing body, the housing assembly can be automatically transferred to the pressing position.

The pressing member may be repeatedly transferred from the connecting position to the pressing position and back. This allows repeated use and assembly and disassembly. For example, the pressing member with the housing body connectable and again be solvable by this.

The pressing member may be arranged in the housing body. Such a housing arrangement can be safer because unwanted operation of the pressing member is thereby prevented.

The housing body may have a mating contact surface for the screen or for the contact element electrically connected to the screen, which is arranged in the housing body. Such a mating contact surface can, for example, apply a counterpressure force which at least partially counteracts the pressing force.

The screen or the contact element can be arranged in the pressing position between a contact surface of the pressing member and a mating contact surface on the housing body. In a In another embodiment, the screen or the contact element can be arranged between two contact surfaces of the pressing member.

The pressing member and a housing surface arranged on the mating contact surface may enclose a substantially circular area in the pressing position. As a result, for example, a uniform pressing of a cable with a circular cross section may be possible. In particular, this makes it possible to press a circular shield against a circular cable without having to loosen the shield from the rest of the cable. Such a configuration thus allows a simpler contacting than a configuration in which the screen is at least partially detached from the rest of the cable and this screen is pressed individually.

In an advantageous embodiment, the circular surface corresponds approximately to the cross section of a cable to be connected. This makes it easy to connect the cable. If the cable for contacting the shield still has an additional element, for example a radially outwardly widening sleeve, then the circular area may be slightly larger than the cross section of the cable and, in particular, adapted to the size of the element.

In order to transfer the pressing force well on the cable, the pressing member may be configured to exert a pressing force along a circumference of the cable. Such a pressing force can extend in particular in a radial direction, in particular towards a conductor.

In order to be able to press in particular umbrellas which are at least partially circular in shape, contact surfaces of the pressing member and / or the mating contact surface of the housing body can be designed in the shape of a cylinder segment.

The pressing member may comprise a pressing bar. The press bracket may be configured arcuate portions for receiving round portions of the screen or the contact element. The press bar may have finger-shaped portions which, due to their elongated structure, allow a lightweight construction with sufficient stability.

The pressing member may include a force generating member for generating the pressing force. A pressing force produced in this way can be forwarded to the screen by further sections or parts of the pressing member.

The pressing member may comprise an actuating member on which the pressing member can be actuated, for example, by a user or a machine. The actuator may be in an advantageous embodiment simultaneously a force generating member. For example, a screw can act as an actuator and force generating organ. When the screw is actuated, i. attracted, it generates a force that is passed through other sections of the pressing member.

The pressing member may be captively mounted on the housing body. This facilitates assembly. The force generating member and / or the actuator can provide the captive.

In order to fix the housing assembly in a simple manner to a counter element, the pressing member may have fastening elements. For example, it may have a recess in which, for example, a screw can be arranged, with which the pressing member and thus the housing assembly can be fastened to the counter element. By attachment, the housing assembly can be fixed in particular on the counter element.

In order to apply a contact force evenly and to allow tolerance compensation, the housing assembly may comprise a spring sleeve for attachment to the screen of the cable, wherein the spring sleeve has radially elastically deflectable contact arms.

The housing body and / or the pressing member may be made of an electrically conductive material, in particular contact surfaces of the pressing member or mating contact surfaces of the housing body. This allows a good electrical connection to the screen.

The pressing member may be configured so that it is directly connectable to the housing body, with a mating connector and / or with a counter-element. Such a direct transfer of the shield current close to the shield contact leads to a low volume resistance.

In order to secure the housing assembly in a simple manner to a counter element before a mounting step, the housing assembly may comprise a securing device for positive securing of the housing assembly to a counter element, wherein the securing device is arranged from a release position to a securing position on the base body displaceable. For this purpose, the securing device may have a form-locking element. The positive-locking element can not cooperate with a corresponding counter-form-locking element in a release position and with in the securing position interact with the counter-form-locking element. The securing device may be connected to transmit power to the housing body, so that a holding force is transmitted from the counter element via the securing device to the housing body.

The securing device may be connected via a rail guide with the housing body to allow easy operation.

The following embodiments are independent of the solution with the pressing member and can be alone a patentable invention.

The mating connector may in particular have a busbar. To prevent accidental contact with a busbar, a contact protection may be present on the mating connector. Such contact protection may advantageously comprise an inner contact protection collar and an outer contact protection collar. The contact protection collar can each be designed cylindrical to allow rotation. The distance between the contact protection collar can thus be designed so that a test finger can not or only very slightly penetrate between the contact protection collar. The mating connector may have an exception for a fastener. Such an exception may include, in particular, a thread.

A connector attached to the conductor of the cable may include a rail contacting sleeve configured to overcome contact protection. The rail-contacting sleeve may be fixedly connected to the connecting element. For example, it may be pressed into the connecting element. The connector and / or the rail contacting sleeve may have an exception for a fastener. Such a fastener may for example be a screw. The fastener may be electrically insulated at an operating portion to protect the user from electrical voltage. It may have an insulation element for this purpose. The fastening element can be permanently connected to a further element, in particular the housing body, in order to facilitate the assembly.

In the following, the invention will be explained in more detail by way of example with reference to advantageous embodiments with reference to the drawings. The illustrated advantageous developments and refinements are each independent of each other and can be combined with each other.

Show it:

1 a schematic perspective view of a first embodiment of the invention;

2 a detailed view of the embodiment according to 1 ;

3 a further detailed view of the embodiment according to 1 ;

4 a sectional view of the embodiment according to 1 ;

5 a schematic perspective view of a second embodiment of the invention;

6 a further schematic perspective view of the embodiment according to 5 ;

7 a further schematic perspective view of the embodiment according to 5 ;

8th a sectional view of the embodiment according to 5 ;

9 a schematic perspective view of parts of the embodiment according to 5 ;

10 a sectional view through the embodiment according to 5 ;

11 a schematic perspective view of one of the embodiment according to 5 belonging counter element;

12 a schematic perspective view of the embodiment according to 5 together with the counter element according to 11 ;

13 a schematic perspective view of the combination of 12 from a different angle;

14 a schematic perspective view of one of the embodiment according to 5 belonging lid;

15 a sectional view of the lid according to 14 ;

16 a schematic perspective view of a cable with a spring sleeve attached thereto; and

17 a sectional view of the cable with the spring sleeve according to 16 ,

In the 1 to 4 is a first embodiment of a housing arrangement according to the invention 1 shown. The housing arrangement 1 includes a housing body 2 to receive a cable end 3 a cable 4 , In the embodiment shown, two cable ends 3 two cables 2 in the housing body 2 added. The housing body 2 is partially transparent to make more elements visible.

The housing body shown here 2 is part of a larger case 200 , For example, a housing of an aggregate in an automobile.

The cable 4 includes a centrally located ladder 41 , one the leader 41 surrounding intermediate insulation 42 , a screen 43 and an outer insulation 44 ,

The screen 43 is between an outer sleeve 111 and an inner sleeve 110 , here as a contact element 5 serves, clamped. The outer sleeve 111 was on the inner sleeve 110 crimped, ie plastically deformed with this. As a result, a permanent low-resistance connection between the contact element 5 in the form of the inner sleeve 110 and the screen 43 produced.

The inner sleeve 110 is through an opening 210 in the housing wall 220 in a heart 20 of the housing body 2 guided. Internally 20 there is a press organ 6 for making an electrical connection to the screen 43 , In the pressing position P shown here exerts the pressing member 6 a pressing force on the contact element 5 out. This is also a permanently good electrical connection between the screen 43 and the housing body 2 achieved.

The press organ 6 in this case includes a press bar 60 for at least partially accommodating two contact elements 5 is designed.

The press organ 6 further includes a force generating member 7 , at the same time an actuator 8th is, in the form of a screw 70 , When operating the screw 70 the pressing force is generated. The head 68 the screw 70 pushes against a surface 64 of the press bracket 60 , The area 64 is partially sideways beside the arches 66 the press bar 60 arranged. A thread 69 the screw 70 is with a mating thread 72 in the housing body 2 connected.

In the embodiment shown here, the cable end 3 along a plug-in direction E in the housing body 2 plugged in. One with the conductor 41 connected cable lug 25 is with a mating contact element 400 connected by a screw 80 is attracted.

In order to have sufficient insulation, in particular sufficient creepage distances, is an insulation element 120 between the inner sleeve 110 and the leader 41 appropriate.

The inner sleeve 110 is between contact surfaces 61 inside on the press bar 60 are arranged, and mating contact surfaces 62 of the housing body 2 pressed.

The press organ 6 and the housing body 2 are separate elements. The press organ 6 can be repeated from the case body 2 be solved and reconnected with it. It can therefore be transferred from a connection position not shown in the pressing position P and back again. In the pressing position P is the housing body 2 firmly with the press organ 6 connected.

In an alternative embodiment, the pressing member 6 also in one piece with the housing body 2 be. For example, the pressing member could be configured as a plastically deformable sleeve. This could be with the contact element 5 or with the screen 43 be crimped to a good connection between the screen 43 and the housing body 2 manufacture.

In the embodiment shown here is the pressing member 6 in the housing body 2 arranged. It is located inside 20 of the housing body 2 ,

The contact surfaces 61 on the press frame 60 form together with the mating contact surfaces 62 on the housing body 2 two approximately cylindrical openings in which the contact elements 5 are pressed. They therefore each enclose substantially circular surfaces, so that a uniform pressure is possible. The pressing member is configured along the peripheries of the cables 4 to exert a pressing force. The pressing force acts in a radial direction R to the conductor 41 out.

The contact surfaces 61 of the press organ 6 and the mating contact surfaces 62 of the housing body 2 are each configured in a cylinder segment shape to produce the above-mentioned cylindrical opening.

A seal 130 seals the housing assembly 1 towards the outside.

In the 5 to 10 is a second embodiment of a housing assembly 1 , as well as an electrical connector 100 and an electrical connection arrangement 500 shown.

Also, the second embodiment of a housing assembly 1 includes a housing body 2 , The press organ 6 is similarly configured as in the first embodiment. A press bar 60 is using a screw 70 that act as a force generating organ 7 and actuator 8th serves, against one contact element 5 that with the screen 43 of the cable 4 firmly connected, pressed. The screw 70 is designed here as a Torx screw. The head 68 the screw 70 pushes against a surface again 64 on the press frame 60 , In this case, the area is 64 in the middle between the two bows 66 of the press bracket 60 arranged.

Unlike the first embodiment, an outer sleeve is used here 111 as a contact element 5 for the screen 43 , The screen 43 is between the outer sleeve 111 and an inner sleeve 110 crimped, leaving again a long-term stable connection between the screen 43 and the contact element 5 is generated. The outer sleeve 111 is as a spring sleeve 90 designed. Details of this spring sleeve 90 and attachment to the cable 4 are in the 16 and 17 to see. The spring sleeve 90 has radially deflectable contact arms 91 on. The centers of these contact arms 91 can be compressed along the radial directions R. Through the contact arms 91 is a more even distribution of pressing force along the circumference of the cable 4 and a tolerance compensation possible.

The press organ 6 also has a fastener 63 in the form of a continuous hole, with which the pressing organ 6 and thus the associated housing body 2 and the entire housing arrangement 1 can be connected with a counter element. In this case, the attachment via a screw 65 , The press organ 6 is captive on the housing body 2 appropriate. Even in a connection position, not shown, the pressing member 6 not from the housing body 2 fall off. About the screw 65 made of metal, the pressing organ 6 in that it consists of a conductive material, directly and with a low contact resistance with the mating connector 300 be brought into contact.

The illustrated embodiment further comprises a securing device 150 for the positive securing of the housing arrangement 1 on a counter element. This is the safety device 150 that have rail guides 151 with the housing body 2 is connected, along the insertion direction E, in which the cables 4 in the housing body 2 are pushed, moved from the illustrated release position L in a non-illustrated securing position. The projections 152 serve as positive locking element for connection with corresponding counter-form-locking elements on the counter element.

The safety device 150 is force transmitting with the housing body 2 connected, so that a holding force of the housing body 2 over the securing device 150 can be passed to the counter element.

The housing arrangement 1 is part of an electrical connector 100 ,

In 11 is a mating connector 300 shown with the electrical connector 100 can be connected. In the 12 and 13 is this connection between the electrical connector 100 and the mating connector 300 , which is only partially shown in these figures, shown from different angles. The mating connector 300 includes in particular busbars 310 ,

On the power rail 310 are inner shock protection collars 510 and outer contact protection collar 520 appropriate. These prevent touching the busbar 310 with a test finger. The contact protection collar 510 . 520 Stand vertically from the busbar 310 from and are each cylindrical. A recess 550 in the middle of the inner shock protection collar 510 allows the inclusion of a fastener 660 , The recess 550 In particular, it comprises a thread with which a screw connection of the fastening element designed as a screw 660 is possible.

The fasteners 660 In particular, they comprise an electrically insulated actuating section 670 in which a head of a screw through an insulating element 680 is electrically isolated. The fastener 660 is in the housing body 2 kept captive. This is by protrusions on the insulation element 680 allows behind a housing wall.

Furthermore, the mating connector 300 Against locking elements 352 in the form of recesses, with the projections 152 the security device 150 interact.

Furthermore, on the counter element 301 an interlock plug 320 attached, which with an Interlockbrückenelement 321 a lid 340 (please refer 14 and 15 ) and a current for the conductor 41 only releases when the mating connector 300 with the electrical connector 100 and the lid 340 correctly mated.

In 12 is an operating section 154 the security device 150 to see at which a user or a machine the safety device 150 can operate. For this purpose, the operation section 154 and thus the securing device 150 moved along the insertion direction E. This creates a positive connection between the electrical connectors 100 and the mating connector 300 , whereby they are held together. Subsequently, the screws can 80 and 65 be screwed, whereby a stable mechanical and electrical connection is made.

In the 14 and 15 are details of the lid 340 shown. The lid 340 is especially about captive screws 350 on the electrical connector 100 attached.

In the 16 and 17 is shown to be a fastener 600 in the form of a lug on the conductor 41 cable 4 is applied, a rail contact sleeve 650 having a contacting of the busbar 310 through the inner shock protection collar 510 and outer contact protection collar 25 through it. The rail contact sleeve 650 is pressed into the connecting element, so that a permanently stable connection is possible. In the connection element 600 and in the rail contacting sleeve 650 is a recess 610 present, through which a fastener 660 can be plugged.

LIST OF REFERENCE NUMBERS

1

housing arrangement

2

housing body

3

cable end

4

electric wire

5

contact element

6

Press organ

7

Power generating means

8th

actuator

20

Interior

25

lug

41

ladder

42

between isolation

43

umbrella

44

exterior insulation

60

Press bracket

61

contact area

62

Against the contact surface

63

fasteners

64

area

65

screw

66

bow

68

head

69

thread

70

screw

80

Contact screw

90

spring sleeve

100

electrical connector

110

inner sleeve

111

outer sleeve

120

insulation element

130

poetry

150

safety device

151

rail guide

152

head Start

154

actuating section

200

larger housing

210

opening

220

housing wall

300

mating connector

310

conductor rail

320

interlock connector

321

Interlockbrückenelement

340

cover

400

Contact element

500

electrical connection arrangement

510

inner shock protection collar

520

outer contact protection collar

550

recess

600

connecting element

610

recess

650

Schienenkontaktierungshülse

660

fastener

670

actuating section

680

insulation element

690

head Start

e

insertion

L

release position

P

pressing position

R

radial direction

Claims (15)

Housing arrangement ( 1 ) for attaching at least one cable ( 4 ) with one around a ladder ( 41 ) arranged screen ( 43 ) comprising a housing body ( 2 ) for receiving a cable end ( 3 ) and a pressing member ( 6 ) for establishing an electrical connection with the screen ( 43 ), wherein the pressing member ( 6 ) is configured, in a pressing position (P) a pressing force on the screen ( 43 ) or on with the umbrella ( 43 ) electrically connected contact element ( 5 ) exercise. Housing arrangement ( 1 ) according to claim 1, wherein the pressing member ( 6 ) and the housing body ( 2 ) are separate elements. Housing arrangement ( 1 ) according to one of claims 1 or 2, wherein the pressing member ( 6 ) in the housing body ( 2 ) is arranged. Housing arrangement ( 1 ) according to one of claims 1 to 3, wherein the housing body ( 2 ) a mating contact surface ( 62 ) for the screen ( 43 ) or with the umbrella ( 43 ) electrically connected contact element ( 5 ), which in the housing body ( 2 ) is arranged. Housing arrangement ( 1 ) according to one of claims 1 to 4, wherein a contact surface ( 61 ) of the pressing member ( 6 ) and one on the housing body ( 2 ) arranged counter contact surface ( 62 ) in the pressing position (P) enclose a substantially circular area. Housing arrangement ( 1 ) according to one of claims 1 to 5, wherein the pressing member ( 6 ) is configured along a circumference of the cable ( 4 ) to exert a pressing force. Housing arrangement ( 1 ) according to one of claims 1 to 6, wherein the pressing member ( 6 ) a press bar ( 60 ). Housing arrangement ( 1 ) according to one of claims 1 to 7, wherein the pressing member ( 6 ) a force generating member ( 7 ) for generating the pressing force. Housing arrangement ( 1 ) according to one of claims 1 to 8, wherein the pressing member ( 6 ) Fasteners ( 63 ) for fastening the housing arrangement ( 1 ) on a counter element ( 300 ) having. Housing arrangement ( 1 ) according to one of claims 1 to 9, further comprising a spring sleeve ( 90 ) for attachment to the screen ( 43 ) of the cable ( 4 ), wherein the spring sleeve ( 90 ) radially elastically deflectable contact arms ( 91 ) having. Housing arrangement ( 1 ) according to one of claims 1 to 10, wherein the housing arrangement ( 1 ) a security device ( 150 ) for the positive securing of the housing arrangement ( 1 ) on a counter element ( 300 ), wherein the security device ( 150 ) from a release position (L) to a securing position displaceable on the housing body ( 2 ) is arranged. Electrical connector ( 100 ) comprising at least one housing arrangement ( 1 ) according to one of claims 1 to 11 and a cable ( 4 ) with one around a ladder ( 41 ) arranged screen ( 43 ), the screen ( 63 ) or one with the umbrella ( 43 ) electrically connected contact element ( 5 ) from the pressing member ( 6 ) is contacted. Electrical connector ( 100 ) according to claim 12, wherein one at the head ( 41 ) of the cable ( 4 ) attached connecting element ( 600 ) a rail contact sleeve ( 650 ), which is designed to protect against contact ( 510 . 520 ) to overcome. Electrical connector ( 100 ) according to claim 13, wherein the rail contact sleeve ( 650 ) in the connecting element ( 600 ) is pressed. Electrical connection arrangement ( 500 ) comprising at least one electrical connector ( 100 ) according to any one of claims 12 to 14.

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