CN1107362C - Modular electrical connecting unit - Google Patents

Abstract

The modular unit (2) comprises a frame (4), and a lever (6) for driving camming slides (8) to mate plug connectors (148) with socket connectors (150). The frame (4) is divided into a series of compartments (18) each for receiving one plug connector (148) and one socket connector (150) and each slide has camming slots (82) each associated with one of the compartments (18) to receive a trunnion (162) on a short end face (160) of a respective plug connector (148).

Description

Modular electrical connecting unit

Technical field

The present invention relates to a kind of modular electrical connecting unit, relate in particular to a kind of modular electrical connecting unit of concentrating linkage unit that is used as in auto industry.

Technical background

DE4336711 discloses a kind of connector assembly, and a plurality of connectors are connected on the base unit.A member that is plugged on connector assembly can be hooked on the base unit, and has mechanical advantage a plurality of connectors and base unit coupling the time.

Disclose a kind of electrical connector element among the EP-A-0549371, it has first retaining element of fixing a plurality of connectors and second retaining element of fixing a plurality of complementary connectors.Two retaining elements connect complementary connector by a lever together.This lever is installed in rotation on first retaining element, and two retaining elements and complementary connector are associated in together.

Announced a kind of electrical connecting unit in EP-A-0363804, it comprises: a slender member that is used to patch the matched electric connector; A pair of or one group of slide block, member relative elongate side wall longitudinally can slide, this group slide block has and is used for the profile that combines with protrusion on first connector, and be connected to a activation lever on member and the slide block, this bar be used for along on the first direction from open when move in the position of closing driving sliding block with the connector coupling, and along on the reciprocal second direction from closing when move in the position of opening driving sliding block to remove coupling with connector.

This known linkage unit only contains the matching connector of a pair of expansion on the member total length.Particularly in auto industry, the end user of this unit revises the line number again and again to each model possibly, just revise the position of connector, the end user requires linkage unit that such result is provided, and makes linkage unit to be redesigned continually.

Summary of the invention

Thereby, according to the present invention, the dividing plate that the defined linkage unit of second portion that resembles this specification is characterised in that this member is striden across slender member extends is divided into one group of compartment, and each slideway has one group of profile that interrelates with one of compartment respectively, be used for combining with corresponding protrusion on each first connector, each second connector of each compartment handlebar keeps mechanism thereon, thereby this linkage unit can be used to mate 1-n group matching connector, here, n is the number of compartment.

Like this, the number of the position of the connector that is provided can be revised to satisfy end user's various needs arbitrarily.In order to realize variation, can maximize by the size of regulation compartment for the compartment number on the given member length, make they along member transversely be elongate, and protrusion can be formed on the short rather than long surface of connector.In an example, each connector has 18 positions.

Preferably, when linkage unit at the scene the time, member can have an erecting device it is fixed in the support, as an interconnection case.

Lever can be determined size like this, make when it during in the position of closing, it can be used as the part cover of compartment, thereby allows to extend and next lead-in wire stretches out from linkage unit from first connector.For this reason, this lever can comprise one be connected to pivot section on the member and one from pivot section outstanding and than pivot section narrow be with free-ended lever arm.In this case, enough intensity is arranged under the situation for the envoy material saving, lever arm preferably uses alveolate texture.

The member and the lever assembly that are used for electrical connecting unit are further disclosed in EP-A-O363804, here, lever rear end is to be pivotally connected on the member to realize the motion of lever between open position and off-position, at open position, lever is mentioned from member, at the off-position place, lever and member are adjacent, wherein, lever has a hasp arm at its front end, link on the lever at the rear portion of this hasp arm, and the front portion of this hasp arm is connected on the rear portion with a sweep, this front portion has outstanding forward being used for to take on lever is snapped onto its off-position place with a hasp that supports to combine, and this hasp shoulder can unload it from supporting by the front portion of pressing the hasp arm backward.

In this known tip assemblies, member has one first electric connector therein, and lever can be driven and second electric connector entered in the member with first connector along profile form matching relationship.This second connector has a cover with a trunk to compile the lead-in wire on the terminal that is connected to second connector.Particularly do not provide under the situation of such cover, it is highly important that the front portion and lead-in wire tied up in knots that should prevent the hasp arm at linkage unit.The front portion of this hasp arm also should be driven by accident preventing, but must be easy to be driven when needing.

Thereby, according to the present invention, the front portion that aforesaid electric coupler component with member and lever is characterised in that the hasp arm is upright from the hasp shoulder between the front side wall portion of lever, and the cut-out that has a front portion that is used for making the hasp arm to get at across the front bulkhead of the lever of side wall portion.

Like this, the front portion of hasp arm has just fully protected by the side wall portion and the antetheca on it of lever, but the front portion of hasp arm still can be driven by finger pressure through cut-out at any time.In order to make this driving easier, this anterior free end preferably extends to the position that the roof of regulations and parameters therewith roughly maintains an equal level, and cut-out extends to also therewith that the roof of regulations and parameters roughly maintains an equal level.And preferably, this hasp arm has reinforcement and the front portion of hasp arm can be difficult for elastic bending around sweep.

The mechanism that can be retained in lever its open position and can decontrol preferably is provided, and is used for accurately opening and closing the mechanism of leading for lever between position at it.

Usually, connector is encoded with color, like this, has formed a kind of localization method and can patch correct color-coded connector to guarantee compartment.

As following disclosed, provide to make first connector remain on the mechanism of pre-matching position in the compartment, when the profile of slide block acts on the protrusion of first connector, this maintaining body will no longer work, and force them to enter into second connector.

US-A-5178553 discloses a kind of lever operating type connector assembly, and wherein, the rigidly connected pin connector of a row is complementary with corresponding socket connector.

Activation lever has the profile that combines with protrusion on the socket connector, they are incorporated among the pin connector.

Description of drawings

Now will be in conjunction with the accompanying drawings with the formal description embodiments of the invention of example, wherein:

Fig. 1 is the radial cross-section that modular is concentrated electrical connecting unit, and this element comprises that one is used to drive the profile slideway so that the lever that pin connector and socket connector are complementary on a member that is used to patch a plurality of contactor plug and socket electric connectors and the member;

Fig. 2 is that lever is shown in an open position and has a shaft side figure of pulling down the linkage unit of part from member;

Fig. 3 is the shaft side figure that lever is in the linkage unit under the closed condition;

Fig. 4 and Fig. 5 are respectively the decomposition shaft side figures of linkage unit, and wherein, connector is not illustrated;

Fig. 6 is the local shaft side figure that amplifies, and shows to be used for keeping the mechanism of lever in its open position with decontroling;

Fig. 7 is the cutaway view of and details that show Fig. 6 that cut open by the axle of lever;

Fig. 8 is the local axis side view of amplification of the leading section of lever, shows the hasp that is used for lever is snapped onto its off-position;

Fig. 9 is the radial cross-section that Fig. 8 details is shown;

Figure 10 shows the partial top view of the details of Fig. 8 and 9;

Figure 11 shows the partial side view of the further details of Fig. 8 to 10;

Figure 12 is the amplification shaft side figure of one of pin connector;

Figure 13 shows the horizontal partial sectional view of the connector of the Figure 12 that is arranged in matching connector pre-matching position;

Figure 14 shows the partial view of amplification of the details of Figure 13;

Figure 15 is the view similar to Fig. 1, is the slice location difference, wherein shows the terminal of plug and socket connector;

Figure 16 shows the partial view of amplification of the details of Figure 15;

Figure 17 shows the top plan view that is assembled into the linkage unit on the interconnection case;

Figure 18 shows linkage unit at the scene and be assembled into the cross-sectional view of interconnection in the case;

Figure 19 is the shaft side figure of the amplification of interconnection case;

Figure 20 is the plane graph of socket connector;

Figure 21 is the lower flat view of member; And

Figure 22 is the plane graph of pin connector.

Embodiment

Shown in Fig. 1-5, modular concentrates electrical connecting unit 2 to comprise that a connector patches 4, one activation lever 6 of member and profile slide block 8, and they each all forms with insulating material is molded.Elongated and member 4 that be roughly rectangle has a front bulkhead 10, an aft bulkhead 12 and an elongate side wall 14.What stride across sidewall 14 is the horizontal dividing plate 16 that separates, and has defined 6 connectors of a row in this example and has patched compartment 18, and each compartment has a last beginning 20 and a following beginning 22.Two connector guide vanes of apart opening along the portraitlandscape of member 4 26 protrude upward from the top edge 24 of each dividing plate 16, and each all the top edge 24 of oriented declivity inclined surface 28 with determine a V-arrangement opening 25 '.The lower limb of each sidewall 14 of member 4 has the hasp arm 34 under pointing to, and each hasp arm 34 has a difference inwardly to point to the hasp 36 of a corresponding compartment 18.The top edge of each sidewall 14 has the slideway 40 of a longitudinal extension, and it patches the corresponding profile slide block 8 (Figure 16 and 18) between upper and lower spill wedge 41 and 44 respectively.Compartment 18 between each spill wedge 41 and 43 of the interior side direction of each slideway 40 opens wide.The top edge of the lower limb of each slideway 40 and dividing plate 16 roughly maintains an equal level.The outer wall of the slideway 40 on a side of member 4 has erecting device 43, and it comprises one by described outer wall and along the upper and lower spill wedge 44 defined outwardly open passages 42 of the longitudinal extension of member 4.As can seeing from Fig. 4 the best, described outer wall is formed on the rear end of passage 42, and the hasp arm 46 that refers to backward has the hasp shoulder 48 of a backward-facing, and profile follower tip portion 50 extends back from hasp shoulder 48.The outer wall of each slideway 40 locates to have one in its back-end from the outwards outstanding lever guide rail 52 of the remaining part of described outer wall.And then the top of guide rail 52 be from the outstanding definition of each sidewall 14 ear 54 of bifurcated of dead eye 56 of centering.Intersect reinforcement 58 across ear 54, as shown in Figure 4.Sidewall 14 platform 60 by helping support ear 54 is cross member 4 backward.The reinforcement 62 of back forms as one with the end wall 12 of member 4 and the downside of platform 60.As can best seeing, has the lever open position hasp arm 66 at the hasp tip 68 that refers to backward from one of the base projections of the breach 64 of the upper edge of the dividing plate 16 of face in the end from Fig. 6.Side at the leading section of member 4 is the shell 70 with chamber 72, and each chamber 72 is to be used for patching corresponding negative electricity source terminal 73 in the mode of hasp.Secondary locking card 74 is to be used for guaranteeing that terminal 73 is fixed on chamber 72 to prevent that it is owing to vibration gets loose.At the opposite side of the leading section of member 4 and what be positioned at shell 70 tops is to have that the lever hasp patches socket 78 and with the lever hasp socket 76 of the lever snap tab support of the form of roof 80.

Each profile slide block 8 comprises an elongated substantially flat, and its inner surface has the type groove 82 corresponding to the compartment 18 of each member 4.Groove 82 is arranged on the length direction of slide block 8 continuously.Each groove 82 has an open upper end 84, and it is linked up with the through hole 86 of slideway 40 upper female wedges 41 mutually at the connector installed position when slide block 8 is return, as can best seeing from Figure 16.Each groove 82 have one from spill wedge 41 to the plug formula arc bottom 88 that forward refer to of spill wedge 43 every a distance.Changeover portion in its end, each groove 82 have the top 90 with respect to one first acute angle of spill wedge 41 formations, and a bottom 92 that constitutes one second acute angle with respect to spill wedge 41.Second jiao bigger than first jiao, that is to say, part 90 is steeper than part 92.Each slide block 8 has one elongatedly to be dynamically connected so that the sky to bar 6 to be provided across opening 94 in its back-end, and is as described below, and a horizontal lever stop ear 96.Groove 82 is defined by the concave surface 98 in the outside of slide block 8.Ear 96 has guaranteed that each slide block 8 is merely able to be positioned on its correct slideway 40.

Lever 6 comprises back pivot section 100, and taper lever arm 102 extends before the one side direction.Thereby part 100 is wideer than arm 102.Pivot section 100 comprises a horizontal tubular axis 103 that extends between the ear 54 of member 4.In the outside of ear 54 are the opposite faces 106 to mesopore 108 that have by it.Pivot pin 104 passes the hole 56 on hole 108, the ear 54 and passes tubular axis 103.Pivot pin 104 has an increase end 110 that combines with the outside of an ear 54.Like this, lever 6 can be made pivot type rotation around pin 104.Each face 106 has a thrust 112 inwardly outstanding below pin 104, and it combines with the elongated open 94 of respective slide 8.Thereby the formation sky is dynamically connected between lever 6 and each slide block 8.Each face 106 is incorporated into the extending back between the portion of following spill wedge 44 of corresponding guide rail 52 and slideway 40 slidably.Tubular axis 103 (Fig. 6 and 7) thereon has a breach 114, is used for combining with the hasp end 68 of hasp arm 66, and can lever 6 being kept together with slide block 8 mutually at the open position place of lifting with decontroling, thereby, all be in the position of returning.In order to save material, increase mechanical strength simultaneously, lever arm 102 is made honeycomb.Like this, arm 102 has the roof 116 of a book, and surperficial within it horizontal and vertical rib 118 and 120 intersects mutually.It is 122 clasp that arm 106 has a reference number at its free end, and these can the best be seen from Fig. 8 to 11.Be used for can decontrol lever 6 is remained on its off-position clasp 122 comprise that one has one and is formed on and stretches the rear portion that overhangs 126 from the roof 116 of lever arm 102 downwards.This arm 124 further comprise one with sweep 130 be connected to rear portion 126 to forward part 128, part 128 bent portions 130 of can going for a stroll is difficult for elastic bending.Anterior 128 upwards put in the ante-chamber 132 of lever arm 102, and it has a free end 134 that flushes with roof 116.The border in chamber 132 be by the outstanding forward sidewall sections 136 of the lever arm 102 of the rear portion 126 of back, side, and the antetheca 138 across side wall portion 136 of front constitute.Antetheca 138 has a cutouts 140 to extend into the top of preceding hasp arm 128 to allow finger.Cutouts 140 has one to the arcuate bottom of sweep 130 bendings and reach the position concordant with roof 116.Below lever arm 102, the front portion 128 of hasp arm 124 has roof 80 following preceding hasps that can be incorporated into socket 76 to take on 142.Hasp arm 124 is not that the overall with that strides across lever arm 102 front ends is extended, thereby in the off-position of lever 6 the preceding shoulder 144 down of arm 102 is not combined with the top spill wedge 41 of adjacent slideway 40.This hasp arm 124 has a tool waling 146.The top at this rear portion 126 has the muscle 147 that increases to produce overload stresses to prevent hasp arm 124.

Each compartment 18 of member 4 is made into to patch pin connector 148 and mating socket connector 150 (Fig. 1,13 and 15), and convex terminal 151 is fixed in the insulation shell 153.As can be from can best seeing Figure 12 to 14, each pin connector 148 comprises an insulation shell 152 that contains female terminal 154 (Figure 15).Each pin connector 148 has a coupling face 156 and a terminal relative with it to patch face 157.Shell 152 has long side surface 158 and 159 and short end face 160.Near terminal patches face 157 from each end face 160 outstanding be cylinder protrusion as gudgeon 162, as can seeing, to combine with the corresponding groove 82 of respective slide 8 from Fig. 2 the best.The side 158 of each connector 148 has one to have the hasp arm 164 that is used for doing the hasp tip 166 of hasp combination below the hasp edge 25 of corresponding mating socket connector 150, as can from Figure 13 best see, remove from member 4 to prevent it with the position of the rise that connector 148 snapped onto pre-matching.Side 158 has at least a keyway 168 to be used for patching corresponding key 33 at connector 150, and side 159 has at least a keyway 170 to be used for patching corresponding key 32 at connector 150.Backstop 172 is installed above snapping onto on the matched position of connector 148 above the hasp arm 164 with top edge 173 matching connector 150.Backstop 172 can be depressed so that 164 bendings of hasp arm, so that connector 148 can be removed from member 4.As shown in Figure 1, each connector 148 is loaded in its corresponding compartment 18 along the direction shown in the arrow B after its cloudy terminal 154 is linked insulator pin L1.Socket connector 150 (Fig. 1,13 and 15) is installed in the corresponding compartment 18 after male 151 is linked lead-in wire L2.The hook 36 of hasp arm 34 is stung in the back of the shell 153 of connector 150, thereby they are snapped onto in the corresponding compartment 18.Power supply terminal 73 quilt after lead-in wire L3 is linked on the terminal 73 is snapped onto in the chamber 72, and with secondary locking card 74 it is locked in the chamber securely.

Shown in Figure 17 and 18, spill wedge 44 and hasp arm 46 are used to guarantee that by unit 2 being fixed to interconnection unit 2 for example is connected in the automobile at the scene on the case 174.As can be from can best seeing Figure 19, case 174 comprises ear 176, for example is fixed on the fireproof bulkhead by its case 174.The free end face 178 of case 174 has one to define the longitudinal rib 180 of opposed slot 182 with face 178, and this opposed slot 182 reaches an end 184 of muscle 180 and terminates in the stop shoulder 188 at the other end 186 back location places of muscle 180.Thereby the muscle 180 almost cross section on overall length all is a T shape.Hasp element 190 on the face 178 of interconnection case 174 with the end 184 of muscle 180 distance is arranged and have one towards the shoulder 192 of the end 184 of muscle 180 and face away from herein oblique profile 193.For linkage unit 2 being installed on the interconnection case 174, the front end of the spill wedge 44 of erecting device 43 will be inserted in the groove 182 of muscle 180, till the front end of spill wedge 44 arrives to stop shoulder 188.At this moment, the marginal portion 50 of the hasp arm 46 of device 43 is connected on the profile 193 of hasp element 190 along profile, makes the hasp shoulder 48 of arm 46 snap in shoulder 92 back of hasp element 190.

Stand-by in order to prepare linkage unit 2, socket connector 150 is installed to the bottom of compartment 18 with above-mentioned method, it is snapped over the there.Lever 6 is remained on the position that it is opened by above-mentioned hasp arm 66.Pin connector 148 is loaded in the top of socket connector 150, is in prewired position, as shown in figure 13.At the open position of lever 6, slide block 8 is in its retracted position, makes the upper end 64 of each type groove 82 link up (Figure 16) mutually with corresponding opening 86.In the installation process of connector 148, their gudgeon 162 enters into type groove 82 by the opening in spill wedge 41 86, places the top 90 of type groove 82.For each pin connector 148 and socket connector 150 are complementary in its underpart, lever 6 is done accurate guiding with rail 52 be pressed into its off-position, make the hasp shoulder 142 of lever 6 by clasp 122 be combined under the roof 80 of socket 76 it is remained there.When lever 6 is closed when being incorporated into off-position, the thrust 112 on lever 6 travels forward slide block 8, makes gudgeon 162 be entered its underpart 92 by the top 90 along type groove 82 forcibly, up to the end 88 of groove 82.Thereby the socket connector 150 of each pin connector 148 below it is complementary.Because the top 90 of groove 82 is relatively steeper, connector 148 is shifted to connector 150 rapidly, enters the bottom 92 with smaller gradient up to gudgeon 162, makes that the mechanical dominance that is provided by lever and chute system also increases when needed coupling power increases.Extend the lead-in wire L1 that comes from connector 148 and extend upward from member 4, shown in the dotted line among Figure 18, because that lever arm 102 is compared with the width of member 4 is narrower, thereby the space that provides lead-in wire L1 to draw.The lead-in wire L2 of connector 150 extends from the bottom of member 4.Pin connector 148 can unload from member like this: at first, pointing backward by cutouts 140 usefulness, splenium divides 128 from supporting the hasp shoulder 142 that roof 80 unloads hasp arm portion 128, to recall shoulder 142 backward, afterwards lever 6 is turned back to its open position, the backstop 172 of inwardly pressing connector 148 then makes 164 bendings of hasp arm, so that connector 148 can move from member 4.

Because slide block 8 is connected to short end face 160 rather than its long side surface 158 and 159 of connector 148, and because connector 150 with the direction extension identical with connector 148, thereby for the length of given member 4, can hold the connector of maximum quantity.

According to end user's needs, connector can be contained in all compartments 18, perhaps only is contained in the compartment 18 of specified quantity.Being used for the special benefits that lever 6 snaps over the clasp 122 of its off-position is that the free end 134 of hasp arm 124 is prevented to twine mutually with the L1 that goes between by lever 6, can prevent that also the accident of hasp arm 124 from driving.Owing to have cutouts 140, clasp 122 to be highly susceptible to operation.

Shown in Figure 21 and 20, connector 150 can have side switch 200, and combining with keyway 202 in the dividing plate 16, and connector 148 can have end key 204, to combine with the end keyway 206 of corresponding connectors 150.

The right connector of all couplings can be by being mated lever 6 from the position that its position of opening moves on to its pass simultaneously, thereby, formed the whole circuit that are connected with L2 with the L1 that goes between simultaneously.On the contrary, by lever 6 is moved on to its open position from its off-position, all circuit are just broken simultaneously.

Preferably, all connectors are all used color coding, and key and keyway are arranged, and make each compartment 18 can only patch a kind of connector of particular color code.

Thereby advantage of the present invention is that electric connector according to the present invention provides a kind of collection of can pegging graft The middle connector modules that needed modular connector is installed. The lever construction that provides has machinery Advantage, and lever construction comprises the molded hasp arm that an integral body that is protected in the covering is made, with Prevent the principal vertical line tangle up or break away from unexpectedly combination.

Claims (17)

1. an electrical connecting unit (2) comprising: be used to patch first and second and can mate the slender member (4) of electric connector (148,150); The a pair of slide block that separates (8) that can slide along the length direction of member (4) in the relative elongate side wall (14) of member (4), described slide block (8) has profile (82), is used for combining with protrusion (162) on first connector (148); And be connected to activation lever (6) on member (4) and the slide block (8), be used on first direction moving with driving sliding block (8) and making connector (148 to off-position from opening the position, 150) be complementary, and it is moving with driving sliding block (8) and make connector (148 from off-position on opposite second direction to opening displacement, 150) break away from coupling, it is characterized in that, member (4) is divided into one group of compartment (18) by the dividing plate (16) that extends across slender member (4), and each slide block (8) has one group of each profile (82) that all interrelates with a corresponding compartment (18), be used for combining with corresponding protrusion (162) on one first connector (148), each compartment is useful on one second connector (150) is remained on wherein mechanism (34,36), thereby, linkage unit (2) but can be used to mate 1 to n to matching connector (148,150), here, n is the number of compartment (18).

2. linkage unit as claimed in claim 1 (2), it is characterized in that, one or more compartment (18) comprises described first and second connectors (148,150), each of these connectors has long side surface (158,159) and short end face (160), on the protrusion (162) of first connector (148) the short end face (160) thereon, compartment transversely is an elongate along member (4).

3. linkage unit as claimed in claim 1 or 2 (2), it is characterized in that, the sidewall (14) of member (4) has and is used for member (4) is fixed to erecting device (43) on the case (174), this erecting device comprises: one towards outer passage (42), and this passage (42) is made of the spill wedge (44) that the length direction along member extends; Hasp arm (46) on described sidewall (14), the far-end of this hasp arm (46) and passage (42) distance of being separated by, and in alignment with described passage (42), described hasp arm (46) has a shoulder away from a described end (48) and the marginal portion (50) to come from shoulder (48) extension away from the direction of described passage (42) one ends.

4. linkage unit according to claim 3 (2), it is characterized in that, this lever (6) comprise the pivot section (100) of an end that is in member (4) and one from pivot section (100) extend and come and member (4) transversely than pivot section narrow free-ended lever arm (102) arranged, when lever (6) was in the closed position, lever arm (102) only covered the part of each compartment and pulls out from linkage unit (2) with the lead-in wire (L1) that allows to come from first connector (148) extension.

5. linkage unit according to claim 4 (2) is characterized in that, lever arm (102) is a cellular structure, and comprises a vertical book wall in top (116) and at intersect horizontal of the inner face of described thin-walled (116) and rib (118,120) longitudinally.

6. linkage unit as claimed in claim 1 (2) is characterized in that, the hasp arm (66) on the member (4) can combine with the opening (114) in the journal shaft of lever (6) can lever (6) being snapped on its open position with decontroling.

7. linkage unit as claimed in claim 1 (2), it is characterized in that, lever guide rail (52) erects from a sidewall (14) of member (4), opposite face (106) on each lever (6) combines with a corresponding guide rail (52) slidably, is lever (6) guiding to open and to close at it between the position.

8. linkage unit according to claim 1 (2) is characterized in that, comprises that also a kind of being used for guarantees to have only predetermined connector could be patched the key connecting mechanism of each compartment.

9. linkage unit according to claim 1 (2), it is characterized in that, each second connector (150) has a snap edge (25), is used for the pre-matching position that combines and upgrade to hold it in the hasp tip (166) of corresponding first connector (148).

10. linkage unit according to claim 1 (2), it is characterized in that, each compartment (18) has the open end, top (20) and the open end, bottom (22) that is used to patch corresponding second connector (150) that are used to patch corresponding first connector (148), reach one and have the hasp (36) adjoining, be used for second connector (150) is remained on the interior hasp arm (34) of compartment (18) with open end, described bottom (22).

11. any one described linkage unit (2) according to aforementioned claim, it is characterized in that, the rear end (100) of lever (6) be pivotally connected on the member with realize open position that lever is mentioned from member (4) and and the adjoining off-position of member (4) between motion, wherein, lever (6) has a hasp arm (124) at its front end, described hasp arm (124) has one to be connected to rear portion (126) on the lever (6) and one and to be connected to front portion (128) on the rear portion (126) with a sweep (130), there is an outstanding forward hasp shoulder (142) that is used for combining with a support this front portion (128) so that lever (6) is snapped onto the position that it is closed, this hasp shoulder (142) can unload down from supporting by the front portion (128) of pressing the hasp arm backward, the front portion (128) of hasp arm (124) erects from hasp shoulder (142) between the front side wall of lever (6) part (136), and across the front bulkhead part (138) of the lever (6) of sidewall sections (136) cutouts (140) that can allow to reach the front portion (128) of hasp arm (124) is arranged.

12. linkage unit according to claim 11 (2) is characterized in that, there is a free end (134) that roughly maintains an equal level with the roof (116) of lever (6) front portion (128) of hasp arm (124).

13. linkage unit according to claim 11 (2) is characterized in that, cutouts has an arcuate bottom that bends towards hasp shoulder (142), and cutouts (140) extends to the height of the roof (116) of lever (6) from arcuate bottom.

14. linkage unit according to claim 11 (2) is characterized in that, the roof (116) of lever (6) is tapered forward to the front side wall part (136) of lever (6) from the rear end (100) of lever (6).

15. linkage unit according to claim 11 (2) is characterized in that, hasp arm (124) has waling (146).

16. linkage unit according to claim 11 (2) is characterized in that, the front portion (128) of hasp arm (124) is difficult for elastic bending on every side at described sweep (130).

17. linkage unit according to claim 11 (2) is characterized in that, the size of lever (6) makes it only cover member (4) partly at the off-position place.