FR3117691A1 - Electrical connector intended to connect a first support to a second support, with split and internally offset fastening part - Google Patents

Abstract

Electrical connector intended to connect a first support to a second support, with split attachment part and internally offset Connector (10) intended to electrically connect a first support (12) to a second support (14), comprising a male contact (16) and a female contact (18), one of which has a conductive fixing part (28) intended to be inserted into one of the supports along an insertion axis (X), the fixing part defining: - a surface radially outer (34) substantially of revolution around the axis of insertion, - a radially inner surface (36) radially delimiting an inner recess (38) and being substantially of revolution around an offset axis of recess (X1) relative to the axis of insertion, and - an axial slot (40) between the radially inner surface and the radially outer surface (34). Figure for abstract: Figure 1

Description

Electrical connector intended to connect a first support to a second support, with split and internally offset fastening part

The present invention relates to an electrical connector for connecting a first support to a second support, the connector comprising a male contact and a female contact movable between an uninserted position, in which the male contact is away from the female contact, and an inserted position, in which an electrically conductive insertable part of the male contact is inserted along an axis of insertion into a housing defined by the female contact, the female contact comprising a conductive body, and a plurality of conductive blades protruding axially from of the body and distributed angularly around the insertable part in the inserted position.

The first support and the second support are for example printed circuits (IC) or busbars (in English busbar s ).

To ensure both the functions of positioning (or "MIP") and maintaining in position (or "MAP") of the male and female contacts, the existing connectors comprise at least one screw screwed into an insulating element to fix the contacts in the inserted position or/and with the supports. The MIP makes it possible to perform the function without the presence of insulators in order to limit the number of components (mass saving, assembly time, recyclability of the product, etc.)

Such connectors are not easy to assemble and disassemble.

An object of the invention is therefore to provide an electrical connector of the type described above which, while ensuring good electrical continuity, is also initially easier to assemble or disassemble in the printed circuit (IC), game of bars, … and then ensure good male-female locking.

To this end, the subject of the invention is an electrical connector intended to electrically connect a first support to a second support, the connector comprising a male contact and a female contact movable between a non-inserted position, in which the male contact is at the away from the female contact, and an inserted position, in which an electrically conductive insertable part of the male contact is inserted along an insertion axis into a housing defined by the female contact, one of the male contact and of the female contact comprising a first conductive fixing part and intended to be inserted into one of the first support and the second support along the insertion axis, the first fixing part defining:

- a radially outer surface substantially of revolution around the insertion axis and adapted to be in electrical contact with said one of the first support and the second support,

- a radially inner surface radially delimiting an inner recess opening axially on the opposite side to the other of the male contact and of the female contact with respect to said one of the male contact and of the female contact, the radially inner surface being substantially of revolution around a first recess axis parallel to the insertion axis and offset from the insertion axis, and

- at least one slot extending axially to an axially extreme edge of the first fixing part, and radially from the radially inner surface to the radially outer surface,

said other of the male contact and of the female contact being intended to be inserted into the second support.

According to particular embodiments, the electrical connector comprises one or more of the following characteristics, taken separately or according to all technically possible combinations:

- the first fixing part comprises an axially extreme portion forming a chamfer configured to facilitate insertion of the first fixing part into said one of the first support and of the second support, the axially extreme portion preferably forming a shoulder adapted to abut axially against said one of the first support and of the second support to increase an axial force necessary to extract from said one of the first support and of the second support the first fastening part;

- said one of the male contact and of the female contact further comprises at least one locking piece insertable into the interior recess to exert radial pressure on the radially interior surface of the first fixing part;

- the first fixing part defines a groove extending around the axis of insertion, said one of the male contact and of the female contact further comprising a washer extending in the groove, the washer being adapted to abut axially against said one of the first bracket and the second bracket upon insertion of the first attachment portion into said one of the first bracket and the second bracket;

- the housing passes axially through the female contact, the insertable part of the male contact comprising a cylindrical portion adapted to be in electrical contact with the female contact in the inserted position, and at least two end portions projecting axially from the cylindrical portion, the two end portions being flexible radially towards the axis of insertion and forming a harpoon passing axially through the housing in the inserted position, each of the two end portions respectively defining a surface adapted to abut axially against the female contact and prevent a return of the male contact from the inserted position to the non-inserted position;

- said other of the male contact and of the female contact comprises a second conductive fixing part intended to be inserted into said other of the first support and of the second support along the insertion axis, the second fixing part comprising:

- A hollow portion, said other of the male contact and of the female contact being force-fitted axially into the hollow portion; And

- an end portion located in an axial extension of the hollow portion and surrounding said other of the male contact and the female contact around the insertion axis with play;

- the end portion of the second fixing part is adapted to be force-fitted axially in said other of the first support and of the second support, the hollow portion being adapted to abut axially against said other of the first support and of the second support in the same way ;

- the end portion of the second fixing part defines at least two axial slots delimiting at least two blades that are radially flexible and adapted to pass through said other of the first support and of the second support and be in electrical contact with said other of the first support and of the second support, each of the blades comprising an axially extreme part forming a shoulder adapted to abut axially against said other of the first support and of the second support and to prevent withdrawal of the second fixing part from said other of the first support and of the second support, the blades respectively defining grooves extending successively around the axis of insertion on radially inner surfaces of the blades, said other of the male contact and of the female contact further comprising at least one member extending in the grooves and adapted to exert radial pressure on the blades;

- said other of the male contact and of the female contact further comprises several members suitable for exerting radial pressure on the blades, the members being asymmetrical around the axis of insertion and respectively defining distinct angular orientations; And

- the second fixing part comprises a fixing portion extending axially from the hollow portion and being intended to be inserted into said other of the first support and of the second support along the insertion axis, the fixing portion defining :

- a radially outer surface substantially of revolution around the insertion axis and adapted to be in electrical contact with said other of the first support and the second support,

- a radially inner surface radially delimiting an inner recess opening axially on the side opposite to said one of the male contact and of the female contact with respect to said other of the male contact and of the female contact, the radially inner surface being substantially of revolution around a second axis recess parallel to the axis of insertion and offset from the axis of insertion, and

- At least one slot extending axially as far as an axially extreme edge of the fixing portion, and radially from the radially inner surface to the radially outer surface.

The invention also relates to an assembly comprising the first support, the second support and a connector as described above.

The invention also relates to a method of electrical connection between the first support and the second support implementing a connector as described above.

The invention will be better understood on reading the following description, given solely by way of example and made with reference to the appended drawings, in which:

there is a sectional view along an axial plane of an electrical connector according to the invention in the inserted position,

there is a partial perspective view of a male contact of the connector shown in the ,

there is a partial axial view of the male contact shown in Figures 1 and 2, and of the first support shown in the ,

there is a perspective view of the female contact and the second socket shown in the ,

there is a partial perspective view of a male contact constituting a first variant of the male contact shown in Figures 1 to 3,

there is a partial view in axial section of a male contact constituting a second variant of the male connector shown in Figures 1 to 3, and of a female contact constituting a first variant of the female contact shown in Figures 1 and 4,

there is a perspective view of a second attachment portion of the female contact shown in the ,

there is a view in axial section of a female contact constituting a second variant of the female contact shown in Figures 1 and 4, and

there is a perspective view of the second fixing part of the female contact shown in the .

With reference to at 4, an electrical connector 10 according to the invention is described.

The connector 10 is adapted to electrically and mechanically connect a first support 12 to a second support 14.

The connector 10 comprises a male contact 16 and a female contact 18 movable between an inserted position shown on the , in which an insertable electrically conductive part 20 of the male contact is inserted along an insertion axis X into a housing 22 defined by the female contact, and a non-inserted position, in which the male contact is away from the female contact . The non-inserted position is not represented explicitly, but is deduced from the inserted position, for example by moving the male contact 16 and the female contact 18 apart from each other along the insertion axis X.

The first support 12 and the second support are for example printed circuits, busbars.

The first support 12 and the second support 14 extend for example perpendicular to the insertion axis X, at least locally, and respectively define circular through holes 24, 26 along the insertion axis X in the inserted position. of connector 10.

The male contact 16 comprises a first electrically conductive fixing part 28 extending axially from the insertable part 20 and inserted along the insertion axis X into the orifice 24 defined by the first support 12 in a direction going from the insertable part towards the first attachment part. The male contact 16 advantageously includes a blocking piece 30 and a washer 32.

In a variant not shown, the female contact 18 comprises the first electrically conductive fixing part 28 extending axially from the insertable part 20 and inserted along the insertion axis X into the orifice 26 defined by the second support 14 The female contact 18 advantageously comprises the blocking part 30 and the washer 32.

The first attachment part 28 defines a radially (relative to the insertion axis X) outer surface 34 substantially of revolution around the insertion axis X and adapted to be in mechanical and electrical contact with the first support 12 The first fixing part 28 defines a radially inner surface 36 radially delimiting an inner recess 38 emerging axially on the side opposite the female contact 18 with respect to the first fixing part 28. The first fixing part 28 also defines at least one slot 40 (FIGS. 2 and 3) extending axially to an axially extreme edge 42 of the first attachment portion, and radially from the radially inner surface 36 to the radially outer surface 34.

The first fixing part 28 advantageously comprises an axially extreme portion 43 forming a chamfer 44 configured to facilitate insertion of the first fixing part into the first support 12. The first fixing part 28 defines for example a groove 45 extending around of the axis is inserted X, the washer 32 extending into this groove.

The radially inner surface 36 is substantially of revolution around a first recess axis X1 parallel to the insertion axis X and off-axis with respect to the insertion axis X (upwards on the and to the right on the ). By “offset”, it is meant for example that the recess axis X1 is located at a distance D1 from the insertion axis X between 0.5% and 60% of the value of the diameter D1′ of the surface radially outer 34 ( ). The value of the misalignment depends on the application and the forces sought when mounting the male contact 16 in the first support 12.

The radially inner surface 36 and the radially outer surface 34 are for example cylindrical.

Because the first recess axis X1 is offset, the first fixing part 28 is radially thinner on the side of the first recess axis X1 with respect to the insertion axis X (that is to say up on the , and on the right on the ), and thicker on the opposite side (i.e. at the bottom on the and left on the ).

The slot 40 is for example located, angularly relative to the first recess axis X1, where the first fixing part 28 is the thinnest.

Optionally, one or more secondary slots (not shown) are made in the first fixing part 28. The secondary slot or slots extend from the slot 40, for example in the direction of the circumference of the first fixing part 28.

For example, there are two secondary slots opposite each other. In this case, the system of slots formed by the slot 40 and the secondary slots has a cross shape in front view, perpendicular to the insertion axis X.

The axially extreme portion 43 advantageously forms a shoulder 46 adapted to abut axially against the first support 12 to increase an axial force (symbolized by an arrow F1 on the ) necessary to extract from the first support 12 the first fixing part 28. The axially extreme portion 43 is advantageously of revolution around the insertion axis X.

The washer 32 is adapted to abut axially against the first support 12 during an insertion of the first fixing part 28 in the first support.

The insertion part 20 forms for example a bottom 48 of the recess 38. The insertion part 20 advantageously comprises a proximal portion 50 (relative to the first support 12) cylindrical, and a distal portion 52 in the shape of an ogive , for example truncated.

The blocking piece 30 can be inserted into the interior recess 38 to exert radial pressure (arrows F2 on the ) on the radially inner surface 36. The locking piece 30 has for example a cylindrical shape around the first recess axis X1. The blocking part 30 is adapted to prevent bending of the first fixing part 28 towards the first recess axis X1 which would facilitate extraction of the male contact 16 from the first support 12.

The female contact 18 is inserted into the hole 26 defined by the second support 14.

The female contact 18 advantageously comprises a conductive body 54, and a plurality of conductive blades 56 projecting axially from the body and distributed angularly around the insertable part 20 in the inserted position. The female contact 18 advantageously comprises two restraining members 57 arranged on the slats 56, and a second conductive fixing part 58 adapted to be inserted into the second support 14 along the insertion axis X.

According to variants not shown, the female contact 18 has only one restraint member 57, or has more than two.

For example, housing 22 formed by female contact 18 passes axially through body 54.

The slats 56 are radially flexible and are adapted to conform to the shape of the insertion part 20 in the inserted position. The slats 56 define radially outer surfaces 60 advantageously forming at least one circumferential groove 62 around the insertion axis X adapted to receive the compression members 57.

The compression members 57 are, for example, blades curved into a "C" forming rings having an interruption 64. The compression members 57 have advantageously distinct angular orientations with respect to the insertion axis X. For example, the interruptions 64 are 90° apart from the insertion axis X.

The second fixing part 58 comprises a hollow portion 66 in which the body 54 of the female contact 18 is force-fitted axially, and an end portion 68 located in an axial extension of the hollow portion and surrounding the blades 66 around the insertion axis X with play to allow the slats to deviate radially from the insertion axis X during a transition from the non-inserted position to the inserted position.

The end portion 68 is adapted to be force-fitted axially into the second support 14 in a direction going from the body 54 towards the slats 56. The end portion 68 is advantageously cylindrical.

The hollow portion 66 is for example adapted to abut axially on a face 70 of the second support 14 located axially on the side opposite the first support 12. The hollow portion 66 has for example a radially outer surface 72 with sides.

The operation of the connector 10 follows from its structure and will now be briefly described.

The first insertion part 28 is inserted into the orifice 24 of the first support 12 along the insertion axis X in a direction opposite to the arrow F1 ( ). Slot 40 imparts radial elasticity to first attachment portion 28.

Chamfer 44 facilitates insertion, while shoulder 46 makes extraction more difficult.

Then, the blocking piece 30 is advantageously inserted into the recess 38 in the direction of the arrow F1 and exerts a pressure (arrows F2) on the radially inner surface 36 of the first fixing part 28. The washer 32 is placed in the groove 44 and prevents too deep an insertion into the first support 12 by abutting axially on the latter.

Thus, the first fastener 28 deforms radially due to the insertion. The first fastener 28 deforms the most where it is thinnest, as symbolized by arrows F3 on the . This makes it possible to balance the stresses (represented by arrows F4) exerted by the first support 12 on the radially outer surface 34 of the first fixing part 28. This results in very good electrical contact between the male contact 16 and the first support 12, despite the ease of insertion of the male contact into the first support.

The second fixing part 58 of the female contact 18 is fixed on the second support 14 by axially forcing the end portion 68 into the orifice 26 in a direction opposite to the arrow F1 on the . Advantageously, the hollow portion 66 abuts against the face 70 of the second support 14.

Then the insertion part 20 of the male contact 16 is brought into the inserted position. The distal portion 52 of male contact 16 facilitates insertion. The insertion slightly separates the slats 56 radially, the restraining members 57 advantageously ensuring optimum electrical contact between the insertion part 20 and the slats 56. The end portion 68 being radially apart from the slats 56, it does not oppose the separation of the slats 56 caused by the insertion of the male contact 16 in the housing 22.

Thanks to the features described above, the 10 connector has no screws or “push to disconnect” interface. The connector 10 is easier to mount, while ensuring both the functions of placing in position (“MIP”) and maintaining in position (“MAP”) of the male and female contacts.

With reference to the , a male contact 116 is described constituting a first variant of the male contact 16. The male contact 116 is similar to the male contact 16 represented in FIGS. 1 to 3. Similar elements bear the same reference numerals and will not be described again. Only the differences are described in detail below.

The male contact 116 comprises a blocking part 130 constituted by a curved "C" blade forming a ring having an interruption 164. The blocking part 130 is received in a groove defined by the radially inner surface 36 and extending around the axis inserts X.

The purpose of the blocking part 130, like the blocking part 30, is to exert a centrifugal radial pressure on the first fixing part 28, in order to make it more difficult to extract the male contact 116 from the first support 12 (not shown on there ).

With reference to FIGS. 6 and 7, a connector 200 is described constituting a variant of the connector 10 represented on the . The connector 200 comprises a male contact 216 constituting a second variant of the male contact 16, and a female contact 218 constituting a first variant of the female contact 18. The male contact 216 and the female contact 218 are respectively similar to the male contact 16 represented on the figures 1 to 3 and to the female contact 18 represented on the and 4. Similar items bear the same reference numerals and will not be described again. Only the differences are described in detail below.

On the , the insertion axis X and the first recess axis X1 are superimposed, because the viewing angle of the differs by 90° with that of the around the axis of insertion X. However, the first axis of recess X1 of the male contact 216 is offset with respect to the axis of insertion X, as in the male contact 16.

The insertable part 20 of the male contact 216 comprises a cylindrical portion 250 adapted to be in electrical contact with the blades 56 in the inserted position, and at least two end portions 252A, 252B projecting from the cylindrical portion 250 axially on the opposite side. to the first fixing part 28 with respect to the cylindrical portion 250.

The two end portions 252A, 252B are advantageously located on either side of the insertion axis X and flexible radially towards the insertion axis X (that is to say one towards the 'other). The two end portions 252A, 252B form a harpoon passing axially through the housing 22 in the inserted position. Each of the two end portions 252A, 252B respectively defines a surface 254A, 254B adapted to abut axially against the body 54 and prevent a return of the male contact 216 from the inserted position to the non-inserted position.

The female contact 218 (FIGS. 6 and 7) comprises a second fixing part 258 comprising a hollow portion 266 analogous to the hollow portion 66 of the female contact 18, and an end portion 268 defining a plurality of axial slots 270 which delimit blades 272 projecting axially from the hollow portion 66 and flexible radially.

The blades 272 are adapted to pass through the second support 14 (not shown in the ) and be in electrical contact with the second support. Each of the blades 272 includes an axially extreme part 274 forming a shoulder 276 adapted to abut axially against the second support 14 and prevent the second fixing part 258 from withdrawing from the second support.

The female contact 218 further comprises at least two members 278 adapted to be received in grooves 280 defined by radially inner surfaces 282 of the blades 272. The members 278 are adapted to exert centrifugal radial pressure on the blades 272. This pressure allows optimal mechanical and electrical contact of the second fixing part 258 with the second support 14.

The members 278 are advantageously asymmetrical around the insertion axis X and respectively define distinct angular orientations around this axis, for example at 90° to each other. For example, members 278 are "C" bent blades.

With reference to FIGS. 8 and 9, a female contact 318 is described constituting a second variant of the female contact 18. The female contact 318 is similar to the female contact 18 represented in FIGS. 1 and 4. Similar elements bear the same reference numerals and will not be described again. Only the differences are described in detail below.

The female contact 318 comprises a second fixing part 358 which comprises not only the hollow portion 66 and the end portion 68, but also a fixing portion 328.

The anchoring of the second fixing part 358 is no longer ensured by the end portion 68, which, according to a variant not shown, is optionally omitted. Anchoring is ensured by the fixing portion 328, which functions analogously to the first fixing part 28 of the male contact 16.

The fixing portion 328 extends axially from the hollow portion 66 on the side opposite the end portion 66 and is inserted into the second support 14 along the insertion axis X in a direction going from the slats 56 towards the body 54.

The fixing portion 328 defines a radially outer surface 334 substantially of revolution around the insertion axis X and adapted to be in electrical contact with the second support 14 (not shown in Figures 8 and 9). The fixing portion 328 defines a radially inner surface 336 radially delimiting an inner recess 338 emerging axially on the side opposite the slats 56 with respect to the body 54. The fixing portion 328 defines at least one slot 340 extending axially up to a axially extreme edge 342 of the attachment portion 358, and radially from the radially inner surface 336 to the radially outer surface 334.

The attachment portion 328 advantageously comprises an axially extreme portion 343 forming a chamfer 344 configured to facilitate insertion of the attachment portion 358 into the second support 14.

The radially inner surface 336 is substantially of revolution around a second recess axis X2 parallel to the insertion axis X and off-axis with respect to the insertion axis X (downward on the ). The second recess axis X2 is for example located at a distance D2 from the insertion axis X of between 0.5% and 60% of the value of the diameter D2' of the radially outer surface 334 ( ). The value of the misalignment depends on the application and the forces sought when mounting the female contact 18 in the second support 14.

The radially inner surface 336 and the radially outer surface 334 are for example cylindrical.

The axially extreme portion 343 advantageously forms a shoulder 346 adapted to abut axially against the second support 14 to increase the axial force necessary to extract the second support 14 the fixing portion 328. The axially extreme portion 343 is for example of revolution around the insertion axis X.

Thanks to the slot 340 and the offset of the second recess axis X2, the fixing portion has radial flexibility with respect to the axis of insertion X and makes it possible to distribute angularly around the axis of insertion X the stresses exerted by the second support 14 on the radially outer surface 334. This allows optimum electrical contact between the fixing part 358 and the second support 14.

Claims (10)

Connector (10; 100) for electrically connecting a first support (12) to a second support (14), the connector (10; 100) comprising a male contact (16; 116; 216) and a female contact (18; 218 ; 318) movable between an uninserted position, in which the male contact (16; 116; 216) is away from the female contact (18; 218; 318), and an inserted position, in which an insertable part (20 ) electrically conductive of the male contact (16; 116; 216) is inserted along an insertion axis (X) in a housing (22) defined by the female contact (18; 218; 318), one of the male contact ( 16; 116; 216) and the female contact (18; 218; 318) comprising a first conductive fixing part (28) and intended to be inserted into one of the first support (12) and the second support (14) according the insertion axis (X), the first fixing part (28) defining:
- a radially outer surface (34) substantially of revolution around the insertion axis (X) and adapted to be in electrical contact with said one of the first support (12) and of the second support (14),
- a radially inner surface (36) radially delimiting an inner recess (38) emerging axially on the side opposite to the other of the male contact (16; 116; 216) and of the female contact (18; 218; 318) with respect to said one of the male contact (16; 116; 216) and of the female contact (18; 218; 318), the radially inner surface (36) being substantially of revolution around a first recess axis (X1) parallel to the axis of insertion (X) and offset with respect to the axis of insertion (X), and
- at least one slot (40) extending axially to an axially extreme edge (42) of the first fixing part (28), and radially from the radially inner surface (36) to the radially outer surface (34) ,
said other of the male contact (16; 116; 216) and of the female contact (18; 218; 318) being intended to be inserted into the second support (14). A connector (10; 100) according to claim 1, wherein the first fixing part (28) comprises an axially extreme portion (43) forming a chamfer (44) configured to facilitate insertion of the first fixing part (28) into said one of the first support (12) and the second support (14), the axially extreme portion (43) preferably forming a shoulder (46) adapted to abut axially against the said one of the first support (12) and the second support (14 ) to increase an axial force (F1) necessary to extract from said one of the first support (12) and the second support (14) the first fastening part (28). A connector (10; 100) according to claim 1 or 2, wherein said one of the male contact (16; 116; 216) and the female contact (18; 218; 318) further comprises at least one blocking piece (30, 130) insertable into the inner recess (38) to exert radial pressure on the radially inner surface (36) of the first fixing part (28). Connector (10; 100) according to any one of claims 1 to 3, in which the first fixing part (28) defines a groove (45) extending around the axis of insertion (X), said one the male contact (16; 116; 216) and the female contact (18; 218; 318) further comprising a washer (32) extending into the groove (45), the washer (32) being adapted to abut axially against said one of the first bracket (12) and the second bracket (14) upon insertion of the first attachment portion (28) into said one of the first bracket (12) and the second bracket (14). First support connector (12) (200) according to any one of claims 1 to 4, in which the housing (22) passes axially through the female contact (218), the insertable part (20) of the male contact (216) comprising a cylindrical portion (50) adapted to be in electrical contact with the female contact (218) in the inserted position, and at least two end portions (252A; 252B) protruding axially from the cylindrical portion (50), the two portions end portions (252A; 252B) being flexible radially towards the insertion axis (X) and forming a harpoon passing axially through the housing (22) in the inserted position, each of the two end portions (252A; 252B) defining respectively a surface (254A; 254B) adapted to abut axially against the female contact (218) and prevent a return of the male contact (16; 116; 216) from the inserted position to the non-inserted position. A connector (10; 200) according to any one of claims 1 to 5, wherein said other of the male contact (16; 116; 216) and the female contact (18; 218; 318) comprises a second fixing part (58 258; 358) conductor intended to be inserted into said other of the first support (12) and the second support (14) along the insertion axis (X), the second fixing part (58; 258; 358) comprising :
- a hollow portion (66), said other of the male contact (16; 116; 216) and of the female contact (18; 218; 318) being force fitted axially into the hollow portion (66), and
- an end portion (68; 268) located in an axial extension of the hollow portion (66) and surrounding said other of the male contact (16; 116; 216) and of the female contact (18; 218; 318) around the insertion axis (X) with play. A connector (10) as claimed in claim 6, wherein the end portion (68) of the second attachment portion (58) is adapted to be press-fitted axially into said other of the first bracket (12) and the second bracket ( 14), the hollow portion (66) being adapted to abut axially against said other of the first support (12) and the second support (14) in the same direction. Connector (200) according to Claim 6, in which the end portion (268) of the second fixing part (258) defines at least two axial slots (270) delimiting at least two blades (272) which are radially flexible and adapted to passing through said other of the first support (12) and of the second support (14) and being in electrical contact with said other of the first support (12) and of the second support (14), each of the blades (272) comprising an axially extreme part ( 274) forming a shoulder (276) adapted to abut axially against said other of the first support (12) and of the second support (14) and prevent withdrawal of the second fixing part (258) from said other of the first support (12) and the second support (14), the blades (272) respectively defining grooves (280) extending successively around the insertion axis (X) on radially inner surfaces (282) of the blades (272), said other of the male contact (16; 116; 216) and of the female contact (2 18) further comprising at least one member (278) extending into the grooves (280) and adapted to exert radial pressure on the blades (272). Connector (200) according to claim 8, wherein said other of the male contact (16; 116; 216) and of the female contact (218) further comprises several members (278) adapted to exert a radial pressure on the blades (272) , the members (278) being asymmetrical around the insertion axis (X) and respectively defining distinct angular orientations. A connector (200) according to claim 6, wherein the second attachment portion (358) comprises an attachment portion (328) extending axially from the hollow portion (66) and being intended to be inserted into said other of the first support (12) and the second support (14) along the insertion axis (X), the fixing portion (328) defining:
- a radially outer surface (334) substantially of revolution around the insertion axis (X) and adapted to be in electrical contact with said other of the first support (12) and the second support (14),
- a radially inner surface (336) radially delimiting an inner recess (338) emerging axially on the side opposite to said one of the male contact (16; 116; 216) and of the female contact (18; 218; 318) with respect to said other of the contact male (16; 116; 216) and of the female contact (18; 218; 318), the radially inner surface (336) being substantially of revolution around a second recess axis (X2) parallel to the axis of insertion (X) and offset from the insertion axis (X), and
- at least one slot (340) extending axially as far as an axially extreme edge (342) of the fixing portion (328), and radially from the radially inner surface (336) to the radially outer surface (334).