ES2575157T3 - Splice connector - Google Patents

Abstract

Splice connector (1), comprising a shielded cable (2), a bushing (10), and a shielded contact (111, 112, 113), through which the shielded cable (2) extends in one direction axial (A), presenting the shield contact (111, 112, 113) at a first axial end (15), a connecting section (12), and being connected through it, at least indirectly, with the bushing (10) and with a cable shield (5) of the screened cable (2), and the shield contact (111, 112, 113) having a contact section (13) extending in the direction of a second end (16 ) axial of the shielding contact (111, 112, 113), characterized in that a first seal (20) is provided, which surrounds the bushing (10) and the connecting section (12) of the shielding contact (111, 112, 113), and because the bushing (10) and the shield contact (111, 112, 113) form, in the area of the connecting section (12), a groove (25) , in which the first seal (20) is inserted.

Description

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DESCRIPTION

Splice connector

The present invention relates to a splice connector according to the preamble of claim 1.

A splice connector of this type is known from US 6 669 511 B1. In this splice connector the first seal is provided between the connecting section and the contact section of the shield contact and exclusively surrounds the shield contact. The seal is arranged axially spaced from the bushing.

Document DE 197 43 710 C2 shows a splice connector in which a shielding cable is inserted into a plug housing. Through a plug housing, the splice connector is attached to a mounting area, for example a motor housing. A shield contact is placed on the end of the plug housing that penetrates the mounting area. An annular seal is arranged between the plug housing and the housing.

From DE 198 29 291 C2 a splice connector is also known in which a plug housing is provided that is used for shielding with respect to a larger housing. In addition, an inner bushing is provided that is in conductive contact with the bushing mentioned first and, in addition, with the cable shield.

Document DE 103 49 583 A1, with respect to the state of the art, a splice connector with a shielding element and a shielding sleeve. A groove is formed between the shielding element and the shielding sleeve, into which a sealing element is inserted. The groove and the sealing element are disposed between the shielding sleeve and a heel of the screening element.

Other splice connectors with sealing elements for sealing the splice element with respect to a housing are disclosed in documents DE 198 48 343 A1, DE 198 29 291 C2 and EP 2 254 199 A1.

Based on this, the present invention poses the problem of providing a splice connector that is characterized by a simpler and more compact structuring.

The problem is solved by a splice connector according to claim 1. The shielding contact is made of an electrically conductive material, preferably of a sheet material.

The splice connector according to the invention is characterized in that instead of a housing two sheet bushings are provided. Advantageously, the bushing and the shield contact confer resistance to the splice connector, which is necessary so that it can be dispensed with in a separate housing. With this, the bushing and the shield contact acquire a self-supporting function. In total the splice connector can be made in a way that saves space and the conductor diameter can be increased for invariable exterior dimensions, which are determined by the bushing and the shield contact. The bushing and the shield contact are connected overlapping in the area of the connecting section. By means of this partially double wall embodiment, the resistance for the splice connector is advantageously established.

The bushing and the shield contact represent a self-supporting housing, generating additional resistance, by means of the seal, in the area of the overlapping sections. This resistance continues to increase thanks to the fact that the bushing and the shield contact form a groove in the area of the connecting section, in which the seal is inserted.

The shielding contact surrounds the bushing, preferably with the connecting section. In particular, it can be provided here that the cable shielding of the shielded cable is secured between the bushing and the connecting section. Preferably, a section of the cable shield is housed between the bushing and the connecting section. This advantageously results in an advantageous assembly sequence, thanks to the fact that the cable shielding is first placed on the bushing and, in a next step, the connection section of the shielding contact is moved both over the shielding of cable placed as well as on the bushing.

Preferably, the first seal has sealing sections which are arranged in each case adjacent axially with respect to the sealing section inserted in the groove. The advantage of this arrangement is that in a contiguous way to the area, in which the bushing and the shield contact are held in a resistant manner in one another, a connection of the splice connector with respect to a surrounded component is guaranteed.

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In a concrete structure, a sealing section is located radially inwardly in the bushing. This sealing section may have sealing surfaces radially outwards, for sealing with respect to a housing that houses the splice connector. In another specific structure, a second sealing section has sealing surfaces radially outward, for sealing with respect to a housing housing the splice connector. In addition, this second section of sealing can be, additionally or alternatively, radially sealing inwards in the shielding contact. In total, this ensures that the area in which the bushing and the shield contact overlap is sealed with respect to the outside from both axial directions.

Preferably, a second seal is provided which is sealed between the bushing and the shielded cable. In addition, a closing bushing can be provided, through which the shielded cable extends and which is positioned by sliding on the end of the bushing away from the shielding contact. Advantageously, the second seal and the closing sleeve provide a plug of the splice connector on the side away from the cable terminal. The closing bushing prevents the coffee from getting out of the second seal and prevents it from being damaged. In addition, the closing bushing ensures the position of the bushing.

The shield contact preferably rests axially on a radial heel of the bushing. This results in introducing the bushing and the shield contact one into another a defined stop for the shield contact with respect to the bushing.

The shield contact can be elastically deformed preferably in the area of the contact section. Advantageously, the contact section can be used to be introduced into a surrounded component, for example a housing housing, to thereby generate clamping forces in this housing area.

In a first embodiment of the shield contact the contact section forms several clamping lugs distributed by the perfometer. Tightening lugs can be manufactured simply by stamping. The clamping lugs extend, preferably starting from the second axial end of the shield contact, in the direction of the first axial end. With this, the tightening lugs can be tilted radially outward along their path, starting from the second axial end.

In a first variant of this embodiment, the clamping lugs are arranged, with perimetric distances, perimetrically along the shielding contact perfometer. In a second variant of this embodiment, the clamping lugs are arranged continuously perimetrically along the shield contact perfometer. It is preferred that the clamping lugs are fixed, with the formation of an axial intermediate space, in the contact section of the shielding contact. This ensures radial and axial deformability of each of the clamping lugs independently of the adjacent clamping lugs in each case. It is further preferred that the axial intermediate space increase in the perimetric direction towards the ends of the clamping lugs, which extend in the direction of the first axial end of the shielding contact.

For the first embodiment of the shield contact it is provided that the clamping lugs can be radially deformed elastically. In total, it is ensured by means of the clamping lugs that the shielding contact is securely fastened thereto in a housing bore of a housing, since the clamping lugs are inserted radially compressed, subject to tension, in the housing bore. .

In a second embodiment of the shield contact, the contact section has a perimeter neck which preferably has a cross section that differs in a circular way. Advantageously, the contact section thus exerts contact forces on a surrounding housing bore when this circular section forms a circular shape. In particular, it can be provided that the perimeter neck has at least one projection that projects radially downwards. Preferably, several projections that are located on an envelope are arranged along the neck perfometer. With this, it is possible to achieve, by means of simple structuring means, that the contact section can be supported, by means of projections, in a felling of accommodation.

The areas of the neck between the projections are preferably deformed radially outward, in case of radial compression of the at least one projection. This advantageously achieves that the contact surfaces do not form only between the projection and the housing bore but that other areas of the contact section participate in the contact, so that the splice connector is held in total safe in a housing housing drill. In particular, it is foreseen that the perimeter neck is manufactured by forming. This can therefore be represented by a simple manufacturing process.

Next, on the basis of the figures, an embodiment of the splice connector is described. Figures 1 to 3 show the splice connector 1 within two possible subvariants of a housing 3 and two variants of a shield contact 11 and Figure 4 the splice connector 1 in a possible second

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variant of a housing 3. Figures 7 to 9 show other variants of the housing with another variant of the shielding contact. In detail it is shown, in:

Figure 1, an exploded drawing of the splice connector 1

a) with a housing subvariant and a first splice connector variant,

b) with a second housing variant and a second variant of the shielding contact;

Figure 2, a cross section of the splice connector inserted in a first housing part; Figure 3, the splice connector

a) in a perspective view, introduced in a first housing part (first variant of the shield contact),

b) in a perspective view, introduced in a first housing part (second variant of the shield contact)

c) in cross section, inserted into the housing;

Figure 4, a second embodiment of the splice connector

a) in an exploded representation with respect to the housing that houses it (first variant of the shielding contact),

b) in an exploded representation with respect to the housing that houses it (second variant of the shield contact),

c) in cross section;

Figure 5, the shield contact in a first variant as detail

a) in perspective view,

b) in axial view,

Figure 6, the shield contact in a second variant as detail

a) in perspective view,

b) in axial view,

c) in cross-section according to the cutting line A-A of Fig. 6b. Figure 7, a third embodiment of the splice connector

a) in a perspective view introduced in a first housing part (third variant of the shield contact),

b) in cross section, inserted into a housing with radial contact; Figure 8, the third embodiment of the splice connector

a) in a perspective view, introduced in a first housing part (third variant of the shield contact),

b) in cross section, inserted in a housing with axial contact;

Figure 9, the shield contact in a third variant as detail

a) in perspective view,

b) in axial view.

Figures 1 to 9 are first described together. The splice connector 1 consists of a bushing 10, a shield contact 11 and three variants 111, 112, and 113 of a first 20 and a second seal 26 and a closing bushing 30, components that are arranged coaxially with each other. . The shield contact is designated by 11 when one of the variants is not described individually. The shielding contact 11 is slid by a connecting section 12 on the bushing 10. This overlapping area of the bushing 10 and the shielding contact 11 is surrounded by the first gasket 20. Axially offset with respect to this overlapping area is arranged , inside the bushing 10, a gasket 26. On the bushing 10 the closing bushing 30 is placed and is fastened on it by means of interlocking means 27.

The housing variant, as shown in Figure 1a, differs from the variants represented in Figure 1b by the configuration of the quadrangular housing 31, seen in cross-section, whereby the bushing 10 and the bushing are also made quadrangular. closure 30. The housing variants of the

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Figures 7 and 8 correspond, as regards the quadrangular configuration, to the housing variant of Figure 1a. From the functional point of view there are no differences. In addition, the three variants 11i, II2, II3 of the shield contact can be combined with any housing subvariant. The three variants 111, 112, and 113 of the shield contact are described separately for Figures 5 to 9. In Figures 2, 3c and 4c, only the first variant 111 of the shield contact is shown for a simple representation.

A shielded cable 2 is housed in the connector 1. The cable 2 is made as a coaxial cable with an inner conductor 7, an inner insulation 8 surrounding it, a cable insulation 5 that surrounds it again and an outer sheath 8. It can be recognized that cable 2 is staggered in a staggered manner on its junction side (Figure 1b). In the shielded part of the conductor 7, a cable terminal 4 is attached by conventional connection technique. For contraction and the joint a contraction bushing 31 is provided, which is partially counterbalanced over the cable terminal 4 and the internal insulation. 8 adjacent.

In Figures 2, 3c and 4c it can be recognized that the cable shield 5 is secured with a section 6 of the cable shield 5, which moves away from the cable terminal 4, turned over the sheath 8, between the bushing 10 and the connection section 12 of the shielding contact 11. This advantageously results in a shorter axial construction length of the splice connector 1.

In the area in which the bushing 10 and the connecting section 12 overlap the bushing 10 and the shielding contact 11 form a groove 25. Towards one side of the groove 25 the connecting section 12 is axially supported on a bead 14 radial of the bushing 10, heel 14 that limits the groove 25. On the other side of the groove 25 is formed by a heel 14 'of the shielding contact 11. The first seal 20 is inserted with a sealing section 23 perimetrically in the slot 25. Starting from the sealing section 23 the joint 20 forms sealing sections 21, 21 'axially to both sides. The sealing section 21 is in contact, sealing radially inwards, with the bushing 10, the sealing section 21 'is in contact, sealing radially outwards, with the housing part 32 (Figure 3c).

The second joint 26 is inserted, between the bushing 10 and the lining 8, on the side of the first joint 20 away from the cable terminal 4. The inside of the splice connector 1 is sealed with respect to the surroundings by the second joint 26. The locking means 27 of the closing bushing 30 comprise locking projections 33, 33 'that radially engage outwardly in engagement eyes 34, 34' of the bushing 10. By crimping the locking projections 33, 33 'in the eyes of coupling 34, 34 'the closing bushing 30 is secured on the bushing 10. The closing bushing 30 is made of a rubbery plastic.

In Figures 2 and 3a, b it can be recognized that the splice connector 1 is inserted, first, in a housing bore 24 of the first housing part 31. In this state, the sealing section 21 'thus stands out. as well as the contact section 13 of the shielding contact 11 axially on the first housing part 31. The joint connector 1 is then moved together with the first housing part 31 in a housing bore 24 'of the second piece of housing 32 (Figure 3c). In this state the sealing section 21 'and the contact section 13 are housed in the housing hole 24' and the sealing section 21 'seals the splice connector 1, radially outwardly through sealing surfaces 22', with respect to the second housing part 32. The function of the contact section 13 is described below. In Figures 2 and 3, a coding hole 35 can also be recognized in the first housing part 31, into which a coding pin not shown in greater detail can be introduced, in order to indicate the occupation of the corresponding splice connector 1. The first housing part 31 can be made of aluminum or plastic.

The variant of the housing 3 of Figure 4 differs as follows from the variants described above. Firstly, the splice connector 1 is also inserted here through the housing bore 24 of the first housing part 31. It is also in contact with a perimeter area of the sealing section 21 'and of the contact section 13 with a rib lower seal 28 of the first housing part 31. The first housing part 31 is then closed with a housing cover 33, this forming a sealing rib 29 in the same axial plane of the sealing rib 28 and both ribs being sealing 28, 29 formed in such a way complementary to each other that, when the housing cover 33 is closed, they form a housing cutout 24 'and completely surround the sealing section 21' and the contact section 13. The housing cover 33 is attached, by conventional fastening means 32, to the first housing part 31. Between the first housing part 31 and the housing cover 33 a gasket 39 is provided.

For both variants of the housing 3, therefore, only one seal 20 is provided, with which it is sealed with respect to the housing 3, on the one hand, the bushing 10 and, on the other hand, the shielding contact 11.

The housing holes 24, 24 'of both variants of the housing 3 have, essentially, that is, without taking into account manufacturing tolerances, a round cross section. If necessary, an oval cross section can also be provided.

In Figure 5, a first variant of the first embodiment of the contact is shown as a detail

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of shielding 11i. The shielding contact 11i has a connecting section 12 at a first axial end 15 and a contact section 13 at a second axial end 16, the latter forming eight clamping lugs 40 which are placed around, starting from the second axial end 16 in the direction of the first axial end 15, and protrude slightly radially outward. Tightening lugs can be elastically deformed. The clamping lugs serve to jam the splice connector 1 in the housing bore 24 ', by inserting the splice connector 1 into the housing 3 or the housing bore 24', as described above, thanks to the fact that the Tightening lugs 40 are compressed and are in contact, under pretension, in the housing bore 24 '.

In figure 6, the second embodiment of the shield contact 112 is shown as a detail. The shield contact 11 has a connecting section 12 at a first axial end 15 and a contact section 13 at a second axial end 16 , the latter forming a neck 14, which can be elastically deformed. The neck 14 has a cross-section (Fig. 5b) that diverges in a circular way, thanks to the fact that it has four projections 18 projecting radially outwards. The projections 18 are located on an envelope 19. In the perimetric direction between the projections 18 the neck 14 forms, in each case, three branch segments. The perimeter segments 36, 36 'arranged directly adjacent to the projections 18 run, seen in cross-section, rectilinearly and the perimeter segments 37 arranged between the perimeter segments 36, 36' straight run curved, seen in cross section. The projections 18 also have sliding chamfers 38 in the direction of the shield contact end 11 away from the connecting section 12.

While the splice connector 1 is not inserted in the housing 3 or in the housing hole 24 ', as described above, the diameter of the housing 19 of the projections 18 is larger than the diameter of the housing hole 24 ', while on the contrary a central diameter of the perimeter segments 36, 36', 37 is smaller than the diameter of the housing bore 24 '. When inserting splice connector 1 into housing 3

0 in the housing bore 24 ', as described above, the projections 18 slide over the sliding bevels 38 into the housing bore 24'. Here the neck 14 is compressed elastically in the area of the projections 18 and the perimetric segments 36, 36 ', 37 between the projections 18 are elastically domed, that is to say they increase their diameter. By this deformation in the opposite direction - compression of the projections 18, on the one hand, and expansion of the perimeter segments 36, 36 ', 37, on the other, - are inserted, in the inserted state of the splice connector 1, both projections 18 as well as the perimeter segments 36, 36 ', 37, under pretension, in the housing bore 24'. This holds the splice connector

1 securely and fixedly in the housing 3. Both variants 111 and 112 of the shield contact can be exchanged fundamentally for one another and have the same function.

Accordingly, it achieves in the same area of the housing 3 both a joint of the splice connector 1 with respect to the housing 3, through the first joint 20, as well as a secure tightening in the housing 3 through the projections 18 on the neck 17 of the shield contact 11.

Figures 7a to 9b show the second variant of the first embodiment of the shield contact 113 in the mounting position (Figures 7a to 8b) and as a detail (Figure 9). This second variant is described only with respect to its differences with respect to the first variant of the shield contact 111.

The housing of the splice connector 1 in the housing bore 24 of the first housing part 31 takes place as described in Figures 2 and 3a. In the first housing part 31 both the sealing section 21 'as well as the contact section 12 of the shielding contact 113, axially beyond the first housing part 31 are inserted. Then, the splice connector 1 is introduced , along with the first

housing part 31, in a housing bore 24 'of the second housing part 32 (Figures 7b, 8b). In this

the sealing section 21 'and the contact section 13 are housed in the housing bore 24' and the sealing section 21 'seals the splice connector 1 radially outwards, by means of sealing surfaces 22', with respect to the second housing part 32.

The difference between Figure 7b and Figure 8b consists in the radial contact of the shield contact 113 with

with respect to the second housing part 32 (Figure 7b) and the axial contact of the shield contact 113 with

with respect to the second housing part 32 (Figure 8b).

In Figure 7b the clamping lugs 40 are, under pretension, in contact with an inner perfometer surface 42 of the second housing piece 32. With this purpose the clamping lugs of the shielding contact 113 are radially elastic. In Figure 8b, the clamping lugs 40, under axial pretension, are in contact with a radial heel 43 of the second housing piece 32. With this purpose the clamping lugs of the shielding contact 113 are axially elastic.

In Figures 8a, b it can be recognized that the clamping lugs 40 are continuously arranged perimetrically along the shielding contact perfumer 113, meaning perimeter continuously that the clamping lugs 40 are only separated by an intermediate space 41 that runs axially . In the

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area of the clamping lugs 40, which extends from the second axial end 16 of the shielding contact 113 in the direction of the first axial end l5, the intermediate space 41 continuously widens. Thanks to the fact that the intermediate spaces 41 continue a little in the contact section 13 of the shielding contact 113 and, consequently, are formed in a U-shape seen in longitudinal section, both a radial elastic deformation as well as axial elastic deformation of the tightening lugs 40.

Overall, good shielding properties are achieved by the splice connector 1 thanks to the fact that the cable shield 5 is fixedly and reliably held between the bushing 10 and the shield contact 11 and, at the same time, a connection is guaranteed that seal permanently through the clamping lugs 40 inserted, under pretension, in the housing 3 or the neck 17. With the splice connector 1 according to the invention, the same first housing parts 31 can be used, which can also be designated as "Shield terminals", with second different housing parts 32, which can also be designated as "unit modules".

List of reference signs

 one

 splice connector

 2

 cable

 3

 Case

 31

 first piece of housing

 32

 second piece of housing

 33

 housing cover

 4

 Cable terminal

 5

 cable shielding

 6

 cable shielding section

 7

 driver

 8

 interior insulation

 9

 coating

 10

 cap

 111, 112,

 113 shield contact

 12

 connection section

 13

 contact section

 14, 14 '

 radial heel

 fifteen

 first radial end

 16

 second radial end

 17

 neck

 18

 outgoing

 19

 envelope

 twenty

 first meeting

 21, 21 '

 tightness section

 22, 22 '

 sealing surface

 2. 3

 sealing section

 24, 24 '

 housing drill

 25

 groove

 26

 second board

 27

 interlocking medium

 28

 sealing nerve

 29

 sealing nerve

 30

 closure cap

 31

 shrink sleeve

 32

 clamping means

 33, 33 '

 interlocking protrusion

 34, 34 '

 eye hitch

 35

 coding drill

 36, 36 '

 perimeter segment

 37

 perimeter segment

 38

 sliding chamfer

 39

 meeting

 40

 tightening lugs

 41

 axial intermediate space

 42

 inner perfometer surface

 43

 radial heel

 TO

 axial direction

Claims (15)

5 10 fifteen twenty 25 30 35 40 Four. Five fifty 55 60 65 1. Splice connector (1), comprising a shielded cable (2), a bushing (10), and a shield contact (111, 112, H3), through which the shielded cable (2) extends in an axial direction (A), presenting the shield contact (111, 112, H3) at a first axial end (15), a connecting section (12), and being connected through it, at least indirectly, with the bushing (10) and with a cable shield (5) of the cable (2) shielded, and the shielding contact (111, 112, H3) having a contact section (13) extending in the direction of a second axial end (16) of the shielding contact (111, 112, 113), characterized by that a first seal (20) is provided, which surrounds the bushing (10) and the connecting section (12) of the shielding contact (111, 112, H3), and why the bushing (10) and the shielding contact ( 111, 112, H3) form, in the area of the connection section (12), a groove (25), into which the first joint (20) is inserted. 2. Splice connector (1) according to claim 1, characterized in that the bushing (10) and the shielding contact (111, 112, H3) are connected overlapping in the area of the connecting section (12). 3. Splice connector (1) according to claim 1 or 2, characterized in that a section of the cable shield (6) is housed between the bushing (10) and the connection section (12). 4. Splice connector (1) according to one of claims 1 to 3, characterized in that the first seal (20) has a first sealing section (21), which is radially in contact with the bushing (10) of sealed way. 5. Splice connector (1) according to one of claims 1 to 4, characterized in that the first seal (20) has a second sealing section (21 '), which is radially in contact with the shield contact ( 11) and / or radially outwardly sealing surfaces (22 '), which serve to establish a seal with respect to a housing (3) housing the splice connector (1). 6. Splice connector (1) according to one of claims 1 to 5, characterized in that a second seal (26) is provided, which is sealed in a sealed manner between the bushing (10) and the shielded cable (2). 7. Splice connector (1) according to one of claims 1 to 6, characterized in that a closing bushing (30) is provided, through which the shielded cable (2) extends, and which is positioned by sliding on the end of the bushing (10) away from the shield contact (111, 112, 113). 8. Splice connector (1) according to one of claims 1 to 7, characterized in that the shielding contact (111, 112, H3) is elastically deformable at least in the area of the contact section (13). 9. Splice connector (1) according to one of claims 1 to 8, characterized in that the contact section (13) of the shielding contact (111, 113) forms several clamping lugs (40) distributed by the perfometer. 10. Splice connector (1) according to claim 9, characterized in that the clamping lugs (40) extend from the second axial end (16) of the shield contact (111, H3) in the direction of the first end (15) axial. 11. Splice connector (1) according to one of claims 9 to 10, characterized in that the clamping lugs (40) are fixed in the contact section (13) of the shielding contact (H3), forming an intermediate space ( 41) axial. 12. Splice connector (1) according to claim 11, characterized in that the clamping lugs (40) are U-shaped in longitudinal section. 13. Splice connector (1) according to one of claims 11 or 12, characterized in that the axial intermediate space (41) increases in a perimetric direction towards the ends of the clamping lugs (40), which extend in direction to the first axial end (15) of the shielding contact (II3). 14. Splice connector (1) according to one of claims 9 to 13, characterized in that the clamping lugs (40) can be elastically deformed radially and / or elastically axially. 5 15. Splice connector (1) according to one of claims 1 to 14, characterized in that the contact section (13) of the shielding contact (H2) has a perimeter neck (17), which preferably has a section transverse that differs in a circular way. 10 16. Splice connector (1) according to claim 15, characterized in that they are distributed along the perfometer of the neck (17), several projections (18) are arranged, which are located on an envelope (19).