FR2702889A1 - Electrical connector - Google Patents

Abstract

Electrical connector of the type comprising a first shell element (1), including a series of channels (19) for female electrical-contact members (21) including, laterally, retaining members (31) which are intended to interact with abrupt parts (30) provided in the channels (19), at least one of the abrupt parts (30) being carried by an elastic fastener (tab) (26), and a second shell element (2), complementary to the first shell element (1), including a series of channels (50) each of which is intended to receive a male electrical contact member (52), characterised in that the first shell element includes a safety (security) key (32) consisting of a body having a bottom wall (33) which is pierced with a series of holes (34) in line with the channels (19) and which is intended to interact with that end of the first shell element intended to face the second shell element (2) and including at least one partition wall (40) intended to be inserted into a slot (42) made between the channels (19) behind the elastic fasteners (26).

Description

Electrical connector.

 The present invention relates to an electrical connector.

 The invention relates to electrical connectors of the type comprising a first housing element pierced with a series of channels intended to each receive a female member of electrical contacts and a second housing element complementary to the first and pierced with a series of channels intended each receiving a male member of electrical contacts having, at its free end, a tongue intended to be inserted in a corresponding female member.

 Generally, the channels have one end for introducing the male or female organs, while the other end has a stop with which the male or female organ cooperates, while at one intermediate point, one or more legs are provided. elastic which, on the side of the insertion end, have a ramp and, on the side of the stop, a steep. The male or female members of electrical contacts are generally provided with one or more retaining members intended to cooperate with the abrupt.

 When the male or female organs are put in place, the elastic tabs elastically move apart to allow the retaining members to pass and, when said members bear against the stops, the elastic tabs return to their initial position so that the organs are thus stalled.

 As more and more there is a tendency to miniaturize the electrical circuits and to use male or female organs of very small sizes, one is not always assured that the latter are engaged suf fi s amment in the channels so that, not being retained on the side of the insertion end of said channels during assembly of the housing elements one on the other, the members are moved and that the electrical connections are defective.

 One of the aims of the present invention is in particular to remedy this drawback.

 The connector, according to 1 invention, comprises a first housing element comprising a series of channels intended to each receive, a female electrical contact member, each electrical contact member comprising, laterally, retaining members intended to cooperate with abrupt provided in the channels, at least one of the steep being carried by an elastic tab and a second housing element complementary to the first housing element and comprising a series of channels intended to each receive a male member of electrical contacts intended to cooperate with a corresponding female member of the first housing element, said connector being characterized in that the first housing element comprises a security key consisting of a body having a bottom wall pierced with a series of holes in line with the channels and intended to cooperate with the end of the first housing element intended to be rotated towards the second housing element and comprising, at least, a partition intended to be inserted in a slot formed between the channels behind the elastic tabs.

 Thanks to such an arrangement, the security key can only be put in place if the female members are properly placed and, the security key not sucking in place, it prevents the assembly of the two housing elements. .

 In order to facilitate the mounting of the female electrical contact members, the first housing element and the security key comprise locking means arranged so that the security key can occupy two positions, a pre-locking position in which the partition is disengaged from the slot and in which the elastic tabs can play freely to allow the placement of the female members of electrical contacts, and a second locked position in which the partition is engaged in the slot and, in which the elastic tabs are blocked.

 In order to ensure the same security for mounting the male electrical contact members, the second housing element is of the type comprising, in each channel, steep, at least one of the steep being carried by an elastic tab, each member male electrical contact terminated by a tongue and comprising retaining means intended to cooperate with said steep, said second housing element being characterized in that it comprises a safety key having a bottom plate intended to cooperate with the end of said second housing element intended to be turned towards the first housing element, said bottom plate being pierced with a series of holes intended to be traversed by the tongues of the male members, said second housing element having, at least, one slot between the channels and behind the elastic tabs, while the security key has at least one partition intended to fit into the slot.

 Thanks to such an arrangement, the security key can only be put in place if the male electrical contact members are properly inserted in the channels. If the security key is not in place, assembly of the housing elements is not possible.

 According to another characteristic, the second housing element and the security key comprise locking means arranged so that said security key can occupy two positions, a pre-locking position in which the partition is released from the slot and in which the elastic legs can play freely to allow the establishment of the male members of electrical contacts, and a second locked position in which the partition is inserted into the slot and in which the elastic legs are blocked. Thus, the establishment of the male members of electrical contacts is facilitated.

 According to a constructive detail, the connector comprises an element for assembling the two housing elements comprising a locking member having two cheeks sliding mounted in slides of the first housing element, each cheek being provided with ramps intended to cooperate with lugs of the second element.

 According to an alternative embodiment of the invention, the first housing element comprises, at one end, a half-pivot while the security key comprises the complementary part of said pivot, this complementary part being separated from the half-pivot in the position for pre-locking the security key and applied against it in the locking position of said key, the second housing element comprising a toggle intended to receive the pivot, on the first housing element being articulated a lever provided with ramps intended to cooperate with the pins of the second housing element.

Thus, the pivot cannot be mounted in the toggle joint until the security key is locked.

 According to yet another characteristic, the second housing element comprises a safety key provided with a plate extending in the toggle protruding therein in the pre-locking position and erased in the locking position. Thus, the toggle cannot receive the pivot if the security key is not locked.

 So that only two compatible housing elements can be assembled together, the plate extending in the toggle of the security key provided on the second housing element includes a boss intended to be inserted in a corresponding slot in the security key of the first housing element.

 Finally, the connector may include a safety device comprising a flexible strip comprising, at one end, a hole allowing its fixing on a post of the member for assembling the two housing elements, locking member or lever, while the the other end of the flexible strip is secured to a lug intended to be inserted into a hole in the assembly member aligned with a hole in the corresponding housing element.

The invention will now be described in more detail with reference to particular embodiments given by way of example only and shown in the accompanying drawings, in which
Figure 1 is a perspective view of a connector according to the invention, in the locked position.

 Figure 2 is a perspective view of the connector according to the invention, in the unlocked position.

 Figure 3 is an elevational view, on a larger scale, of one of the connector housing elements of Figures 1 and 2.

 Figure 4 is a plan view, from below, of the housing member of Figure 3.

 Figure 5 is a sectional view along line 5-5 of Figure 4.

 Figure 6 is a sectional view along line 6-6 of Figure 4.

 Figure 7 is a sectional view along line 7-7 of Figure 4.

 Figure 8 is a sectional view along line 8-8 of Figure 4.

 Figure 9 is a plan view of the second housing element of the connector of Figures 1 and 2.

 Figure 10 is a sectional view along line 10-10 of Figure 9.

 Figure it is a sectional view along line 11-11 of Figure 9.

 Figure 11A is a sectional view corresponding to Figure 11, the security key being in the locked position.

 Figure 12 is a sectional view along line 12-12 of Figure 9.

 Figure 13 is a sectional view along line 13-13 of Figure 9.

 Figures 14, 15, 16 and 17 are sectional views showing the different impossibilities of mounting the male organs of electrical contact with the security key of the second element.

 Figures 18, 19, 20 and 21 are sectional views showing the various impossibilities of locking the security key if the female electrical contact members are not properly placed.

 Figure 22 and Figure 23 are sectional views showing the impossibility of assembly of the two housing elements if the security keys of the two housing elements are not properly in place.

 Figure 24 is a perspective view of a connector, according to an alternative embodiment.

 Figure 25 is also a perspective view of the connector of Figure 24.

 Figure 26 is an exploded perspective view showing the two separate housing elements.

 Figure 27 is a plan view of the second housing member of the connector of Figures 24 to 26.

 Figure 28 is a sectional view along line 28-28 of Figure 27.

 Figure 29 is a sectional view along line 29-29 of Figure 28.

 Figure 30 is a sectional view similar to Figure 28, the security key being assumed not locked.

 Figure 31 is a sectional view along line 31-31 of Figure 30.

 Figure 32 is an elevational view of the first housing member.

 Figure 33 is a sectional view along line 33-33 of Figure 32.

 Figure 34 is an elevational view of the first housing member, the security key being in a pre-locking waiting position.

 Figure 35 is a sectional view along line 35-35 of Figure 34.

 Figure 36 shows in plan, seen from below, the first housing element, the security key being assumed to be removed.

 Figure 37 is a plan view from below of the first housing member, the security key being put in place.

 Figures 38 and 39 are elevational views showing the impossibility of assembly of the housing elements when the security keys are not locked.

 Figures 40 and 41 are elevational views showing the assembly of the housing elements.

 Figures 1 to 23 show a first embodiment of the connector according to the invention.

 The connector comprises a first housing element 1 and a second housing element 2, these two elements being assembled by a locking member 3.

 A safety device 4 is provided, comprising a flexible strip 5 pierced with a hole 6 at one end, while the other end comprises a pin 8 capable of passing through a hole 7 provided in the locking member 3 and a hole 9 of element 1, these being aligned when the locking member 3 is in the locking position.

 A member 10 is provided on the member 3 provided with a head 11 for fixing the strip 5, the tenon 10 being engaged in the hole 6.

 The first housing element 1 (see FIGS. 3 to 8) consists of an elongated body of generally parallelepipedal shape having, on two opposite sides, grooves 14 in which cheeks 15 of the locking member 3 slide, the lower part of said grooves 14 being pierced with slots 16 for the passage of lugs 17 of the second element and intended to cooperate with inclined ramps 18 of the cheeks 15. The inclined ramps 18 have an opening 13 for the passage of the lugs 17.

 The body of the first housing element 1 is pierced with a series of channels 19 each intended to receive a female contact member 21 (see FIG. 18). I1 can be provided more or less important channels for receiving female contact members 21 more or less large depending on the intensities of electric current which must pass through them.

 Each channel 19 has one end 20 for introducing a female contact member 21 and one end 22 for engaging a male contact member 23 (see FIGS. 15, 22). In each channel 19, a stop 24 is provided, on an internal wall, the abrupt of which faces the end 22, while a ramp 25 is provided towards the end 20.

 Each channel 19 has, on the internal wall opposite to that provided with the stop 24, an elastic tab 26 which, on the side of the end 20, comprises a ramp 27 and, on the opposite side, a steep 30.

 The female members 21 (see FIGS. 18 to 21), on two opposite walls, include elastic blades 31 which are intended to cooperate with the steep so that, once engaged by the end 20 and, after having crossed the ramps 25 and 27, the free ends of said blades 31, bearing against the steep, oppose the withdrawal of said members 21.

 The first housing element 1 receives, on the side of the ends 22, a security key 32.

 The security key 32 comprises a bottom plate 33 pierced with a series of holes 34 which are aligned with the channels 19, two longitudinal side walls 35 and 36, two end walls 37 and 38 and two intermediate partitions 40 parallel to the walls 35 and 36. In the body of the element 1, between the rows of channels 19, there are slots 42 in which said partitions 40 are inserted, the bottom of said slots comprising openings 43 intended to receive pre-hooks. locking and locking 44, while the walls 35 and 36 slide in slots 29 and 39 and the walls 37 and 38 in slots 28 and 41.

 The hooks 44 comprise two branches 44a and 44b capable of being brought together elastically, each branch being terminated by a step 45 and having, in the vicinity of its base, a ramp 46 completed, on the side of the step, by a small shoulder 47 and, on the opposite side, by a steep 48.

 Thus, the security key can be placed in two positions, a pre-locking position in which the bottom plate 33 is distant from the ends 22 and, a locked position in which said bottom plate 33 bears against said ends, and constitutes a retaining stop for the corresponding ends of the female contact members 21.

 It will be noted that the elastic tabs 26 are turned towards the side of the slots 42 and that, in the pre-locking position of the security key, the free ends of the intermediate partitions 40 are spaced from the free ends of the elastic tabs 26 so that that -ci can play freely, while in the locked position the intermediate partitions 40 are placed behind said elastic tabs 26 and block these.

 FIGS. 18 to 21 show that the security key 32 makes it possible to avoid improper mounting of the female members 21.

 Indeed, if the key is locked (see FIGS. 18 and 19), it is not possible to engage a female member 21 in the corresponding channel 19, the corresponding elastic tab 26 not being able to be elastically erased to allow the passage of said female member 21 .

 If a female member 21 is incorrectly positioned, the corresponding elastic tab 26 closes the corresponding slot 42 and the intermediate partition 40 can no longer be engaged in the corresponding slot 42 (see FIGS. 20 and 21). Such an arrangement is very safe because it prevents a female member 21 from being insufficiently engaged in the channel 19, which would risk creating poor contact.

 The second housing element (see FIGS. 9 to 13) comprises a generally rectangular body pierced with a series of channels 50, each channel being intended to receive a male contact member 52, each channel 50 has an end 53 through which is introduced the corresponding male member, this being intended to project at the other end 54 of the corresponding channel. Channels 50 correspond exactly to channels 19.

 Each channel 50 comprises, on one wall, a ramp 55 terminated by a steep 56 turned towards the end 54 and, on the opposite wall, an elastic tab 57 with a ramp 58 and a steep 59, the end free of the elastic tab being terminated by a bearing 60.

 The span 60 and the abrupt 56 are located at the same level, while the abrupt 59 is situated behind the abrupt 56 and at the end 54.

 The male electrical contact members 52 consist of a body 62 terminated at one end by a tongue 64 intended to cooperate with a corresponding female member 21 and the end of which, opposite the tongue, is provided with crimping lugs 65 for a conductor 66 (see figures 22, 23 - 14 to 17).

 The body 62 comprises, on two opposite sides, an elastic blade 63. The male members 52 are introduced into the channels 50 by the end 53 and pushed into them so that the free ends of the elastic blades cooperate, one with the abrupt 56 and, the other with the bearing 60, the end of the body 62 adjacent to the crimping tabs 65 abutting the abrupt 59.

 The second housing element 2 is, on the side of the ends 54 of the channels 50, extended by a lateral rim 68 offset towards the outside and connected to said element 2 by a pad 70.

 The lugs 17 are provided on the internal face of two opposite sides of the rim 68.

 I1 is provided a security key 71 which comprises a bottom plate 72 pierced with a series of holes 73 for the passage of the tongues 64. The bottom plate, at its ends, has walls 74 and 75 which engage in slots 76 and 77 of the element 2. The longitudinal sides of the bottom plate 72 are bordered by walls 79 and 80.

 The wall 79, in its central part, is extended by a lateral part 82 intended to bear against the pad 67 and itself extended by an elastic bar 83 intended to bear against the corresponding internal face of the rim 68.

 The wall 80 is extended, in its central part, by a lateral part 85 intended to cooperate with the track 67, this lateral part 85 is extended by an elastic bar 86 intended to cooperate with the corresponding internal face of the rim 68.

 As can be seen in FIGS. 9, 10, 11, 12, 22 and 23, the element 2 has three rows of channels 50. For the rows of channels located towards the outside, the elastic tabs 57 are arranged so as to cooperate with the walls 79 and 80, while for the central row there is provided, on the side of the tab 57, a series of slots 88, the security key 71 comprising, extending from the bottom plate 72, a series of plates 89 intended to engage in said slots 88.

 The elastic bars 83 and 86 comprise, laterally, stops 90 intended to cooperate with projections 91 on the internal face of the flanges 68 (see FIGS. 11 and 11A).

 The second housing element 2, in the vicinity of its two ends, has slots 92 and 93 into which the free ends of the walls 79 and 80 are inserted respectively, the wall 79, in the vicinity of the wall 74, being terminated by a hook 94 intended to cooperate with a step 95 of the slot 92.

 It will be appreciated that the security key 71 can thus be placed in a pre-locking position in which the stops 90 cooperate with the face of the projections 91 opposite to those turned towards the ends 54 of the channels 50, the key being held by the hook 94. In this position, the free ends of the plates 89 and the side walls 79 and 80 are distant from the free ends of the elastic tabs 57, so that the latter can play freely.

 When we want to place the security key 71 in the locked position, we press the elastic bars 83 and 86 so that the stops cross the projections 91 and come to be on the side of the face of these facing the beach 67. In this position, the plates 89 are engaged in the slots and the walls 79 and 80 bear against the face of the elastic tabs 57 opposite to that provided with the ramp 58 and the abrupt 59.

 As can be seen in FIGS. 14 to 17, the security key 71 makes it possible to avoid incorrect placement of the male members of electrical contacts.

 If the key is locked (see FIGS. 14 and 15), the male members 52 can no longer be put in place since the tabs 57 can no longer move apart to let said male member 52 pass.

 If a male member 52 is not properly inserted, the elastic tabs 57 partially close the slots 88, 92 or 93, as the case may be, and therefore either the pads 89 or the walls 79 or 80 abut against the tabs elastic 57 and the security key 71 cannot be locked.

 The bottom plate 72 constitutes a stop for the members 52 so that they are completely blocked once put in place and the key 71 locked.

 Another advantage of the invention is that it is also impossible to assemble the two housing elements 1 and 2 if any of the security keys 32 or 71 is not in the locked position.

 FIG. 22 shows the case where the security key 32 has remained in the pre-locked position, while FIG. 23 shows the case where the security key 32 is locked, but the security key 71 is in the pre-locked position -locked.

 As seen in Figure 22, if the security key 32 is in the pre-locked position, it protrudes and opposes the engagement of element 1 on element 2, the pins 17- being engaged only in the openings 13 of the locking member 3, the latter cannot be moved.

 If the security key 71 is in the pre-locking position, the element 1 can also not be put in place, the element I abutting against the bottom plate 72.

 The pins 17, being, as in the case of FIG. 23 just fitted into the openings 13, the locking member 3 cannot be slid in the locking direction.

 Figures 24 to 41 show an alternative embodiment of the invention.

 In this embodiment, the connector consists of a first housing element 100 and a second housing element 101.

 The second housing element 101 consists of a molded plastic body, comprising a series of channels 102 each intended to receive a male electrical contact member. The channels 102 are arranged in the same way as the channels 50 and the male members, which are intended to equip the channels 102, are of the same type as the members 52. They will not be described for this embodiment since they have been perfectly represented and detailed for the first realization. The channels 102 are also arranged in the same way as the channels 50 with, internally, elastic tabs 103 corresponding to the tabs 57 and, on the opposite side, means for retaining the elastic blades 63 of the members 52.

 A security key 104 is provided, which includes a bottom 105, end walls 106 and 107 and plates 108 which can fit into slots behind the elastic tabs 103 to block them. The bottom is pierced with holes 114 for the passage of the tongues 64.

 The walls 106 and 107 are guided respectively in slots 109 and 110 of the second housing element 101.

 The second casing element 101 has two notches 112 and 113 laterally, while the safety key 104 has two tabs 115 provided with a lug 116 capable of being selectively engaged in the notches 112 and 113.

 Thus we can place the security key 104 in a pre-locking position, the lug 116 cooperating with the notch 113 (see Figure 31), position in which the elastic tabs 103 can play freely for the establishment of the male members 52 (see explanations concerning Figures 14 to 17).

 It is also possible to put the security key in the locked position by placing the lug 116 in the notch 112. In this position, the male members 52 are blocked in the channels 102 if they have been properly inserted in the latter ( see also the description of Figures 14 to 17 which describe the different possible cases).

 The housing element 101 is terminated by a toggle 117 of which a part of the bottom is formed by a plate 111 extending the security key 104.

 As can be seen in FIG. 28, when the security key 104 is locked, it is possible to put in place a complementary part of the toggle joint, while when said key 104 is in the pre-locked position (see FIG. 30), the plate 111 opposes the establishment of the complementary part.

 The plate 111 has, in its central part, a boss 146.

 The second element 101 comprises, laterally, two flanges 118 each comprising a pin 119.

 The first housing element 100 comprises a body provided with a pin 120 on which a lever 121 is articulated which has, on each side, ramps 123 intended to cooperate with the pins 119.

 The body of the first housing element 100 is pierced with a series of channels 124 arranged in the same way as the channels 19 and intended to each receive a female member 21 (see FIG. 36).

 On the first housing element 100 is mounted a security key 125 which comprises a bottom plate 126 which comprises a series of holes 127 for the passage of the tongues 64.

 From the bottom plate are erected partitions identical to the partitions 40 and intended to be inserted into slots of the element 100 in order to block the elastic tabs of the channels 124.

 The element 100 comprises, laterally, notches 130 and 131 while the security key is provided with a lug 133 provided with a lug 132 intended to be selectively inserted in the notches 130 and 131.

 When the lug 132 is inserted into the notch 130, the key 125 is in the pre-locking position, while when the lug 132 is in the notch 131, the key 125 is in the locking position. These positions correspond exactly to the arrangements described for the housing element 1 (see the various figures 5, 6, 7, 18, 19 and the corresponding description).

 At one end, the element 100 comprises a half-pivot 135, while the security key 125 is provided, at its corresponding end, with the complementary half-pivot 136, the part adjacent, to the half-pivot 136, with the security key 125, has a slot 147.

 It is understood that if the security key 104 is not in the locked position (see FIGS. 30, 26, 39), the pivot 135, 136 cannot be inserted in the toggle joint 117 and that the element 100 cannot be mounted on the element 101, the plate 111 projecting from the toggle joint 117. The safety key 104 may not be suitably mounted for the various reasons mentioned in the description of FIGS. 14 to 17.

 It will also be noted (see FIGS. 26, 34 and 39) that if the locking key 125 is not properly placed, the two complementary parts 135, 136 forming the pivot are spaced apart and that, consequently, the latter cannot fit into the kneepad 117.

 During the description of FIGS. 18, 19, 20 and 21, reference has been made to the different cases in which the security key 125 may not be placed in the locked position (see FIG. 33).

 When the security keys 104 and 125 are locked, the pivot 135, 136 is inserted into the toggle joint 117 and, the lever 121 being placed in the high position (see FIG. 40), the pins 119 can be inserted in the ramps 123 , the lever 121 is then tilted in the direction of the arrow (see FIG. 40) so that the two housing elements 100 and 101 are assembled and the tongues 64 engaged in the female members 21.

 The boss 146 and the slot 147 form a keying system which opposes the mounting on the second housing element 101 of a first element 100 which would not be provided for this purpose.

 The element 100 can be completed by a cover 137 intended to hide the electrical conductors and provided with a stop 138 for retaining the lever 121.

 It is also possible to provide (see FIG. 25) a locking member 140 consisting of a flexible strip 141, one end of which has a hole 144 intended to cooperate with a lug 145 of the lever 121, while the other end is integral with a tenon 142 intended to engage in a hole 143 in the lever 121 and a hole in the element 100 aligned with the hole 143.

 Of course, the invention is not limited to the embodiments which have just been described and shown. Many detailed modifications can be made without departing from the scope of the invention.

Claims (9)

 I. Electrical connector of the type comprising a first housing element (1) comprising a series of channels (19) intended to each receive a female electrical contact member (21), each electrical contact member (21) comprising, laterally , retaining members (31) intended to cooperate with steep (30) provided in the channels (19) at least one of the steep (30) being carried by an elastic tab (26), and, a second housing element (2) complementary to the first housing element (1) and comprising a series of channels (50) each intended to receive a male member of electrical contacts (52) intended to cooperate with a corresponding female member (21) of the first housing element (1), characterized in that the first housing element comprises a safety key (32) consisting of a body having a bottom wall (33) pierced with a series of holes (34) in line with the channels (19) and intended to cooperate with the end of the first housing element intended to be turned towards the second housing element (2) and comprising, at least, a partition (40) intended to be inserted in a slot (42) formed between the channels (19) behind the elastic tabs (26).  2. An electrical connector according to claim 1, characterized in that the first housing element (1) and the security key (2) include locking means arranged so that the security key can occupy two positions, one position pre-locking in which the partition (40) is released from the slot (42) and in which the elastic tabs (26) can play freely to allow the establishment of the female members of electrical contacts (21) and a second position locked in which the partition (40) is engaged in the slot (42) and, in which the elastic tabs (26) are blocked.  3. An electrical connector according to claim 1 and of the type in which the second housing element (2) comprises, in each channel, abrupt (60, 56), at least one of the abrupt (60) being carried by a elastic tab (57), each male member (52) of electrical contacts terminated by a tongue (64) and comprising retaining means (63) intended to cooperate with said steep (60, 56), characterized in that the second element housing (2) comprises a security key (71) having a bottom plate (72) intended to cooperate with the end of said second housing element (2) intended to be turned towards the first housing element, said bottom (72) being pierced with a series of holes (73) intended to be traversed by the tongues (64) of the male members (52), said second housing element (2) having, at least, a slot (88) formed between the channels (50) and behind the elastic tabs (57), tand is that the security key (71) comprises, at least, a partition (89) intended to be inserted in the slot (88).  4. Electrical connector according to claim 3, characterized in that the second housing element (2) and the security key (71) comprise locking means arranged so that said security key (71) can occupy two positions , a pre-locking position in which the partition (89) is released from the slot (88) and in which the elastic tabs (57) can play freely to allow the establishment of the male members (52) of electrical contacts, and a second locked position in which the partition (89) is inserted into the slot (88) and in which the elastic tabs (57) are locked.  5. Electrical connector, according to claim 1 or 3, characterized in that it comprises an element for assembling the two housing elements (1 and 2) comprising a locking member (3) having two cheeks slidingly mounted in slides. (14) of the first housing element (1), each cheek being provided with ramps (18) intended to cooperate with lugs (17) of the second element (2).  6. Electrical connector, according to claims 1 and 2, characterized in that the first housing element (100) comprises, at one end, a half-pivot (135) while the security key (125) comprises the complementary part (136) of said pivot, this complementary part being separated from the half-pivot (135) in the pre-locking position of the security key (125) and applied against the latter in the locking position of said key, the second element ( 101) of housing comprising a toggle joint (117) intended to receive the pivot, on the first housing element (100) being articulated a lever (121) provided with ramps (123) intended to cooperate with trunnions (119) of the second element housing (101).  7. Electrical connector, according to claims 1, 2, 3, 4 and 6, characterized in that the second housing element (101) comprises a safety key (104) provided with a plate (111) extending in the toggle joint (117) projecting therein in the pre-locking position and cleared in the locking position.  8. Electrical connector, according to claims 6 and 7, characterized in that the plate (111) extending in the toggle joint (117) of the security key (104) provided on the second housing element (law) comprises a boss (146) intended to be inserted into a corresponding slot (147) of the security key (125) of the first housing element (100).  9. An electrical connector according to claims 5 and 6, characterized in that it comprises a safety device comprising a flexible strip (5-141) comprising, at one end, a hole (6-144) allowing its fixing on a tenon (10-145) of the assembly member of the two housing elements, locking member (3) or lever (121), while the other end of the flexible strip (5141) is integral with a tenon (8, 142) intended to be inserted in a hole (7, 143) of the assembly member aligned with a lug of the corresponding housing element.