CN2567822Y - Electric connector - Google Patents

Abstract

The utility model relates to a male connector (10), which comprises a first and a second body parts (28, 29), a plurality of base plates (16) positioned in the first body part, and a plurality of signal terminals (18) and earth terminals (20) positioned in the second body part, wherein, the signal terminals and the earth terminals are correspondingly arranged; each base plate is provided with a first edge (108) and a second edge (110) vertical to the first edge; the first edge of each base plate is contained at the back part of a relative guide plate of the first body part, and the second edge is clamped between the signal terminals and the earth terminals. Because the intensity of the earth terminals is a little larger than the signal terminals, the second edge is pushed to the signal terminals and is reliably connected with the signal terminals. The utility model relates to a female connector (12) butted with the male connector, which comprises an insulation body (22) and a plurality of signal terminals (24) and earth terminals (26) correspondingly arranged in the insulation body, wherein, the signal terminals are bridged on the bottom surface (128) of the insulation body. The male connector and the female connector are both provided with corresponding guide mechanisms so as to ensure accurate butt joint between the male connector and the female connector. By the structure, reliable signal transmission path and earth path can be established between the male connector and the female connector.

Description

Electric connector

[technical field]

The relevant a kind of electric connector of the utility model, refer in particular to a kind of have can firmly organize be located in its insulating body and with the electric connector of the earth terminal of the electrical assembly reliable fit of butt connector.

[background technology]

Research firm's spot investigation (Fleck Research) of the technical information of the relevant electric connector industry that the whole world is famous and market intelligence has been published " back panel connector general introduction " (" A View from the Backplane ") literary composition by name on January 7th, 2002 (network address is http://www.fleckresearch.com/news/en_99-10-18.htm.) on its website, and this article has briefly introduced some present back panel connectors.For example, Teradyne company and molex inc unite 2.0 millimeters connectors of HDM (HighDensity Metric) series of release, the Metral HB connector that FCI (Berg) company releases, HMHS (the Hard Metric High Speed) connector of the new release of FCI S.A. and the Z-PACK HS3 connector that AMP Inc. releases.Above-mentioned these electric connectors all have high density, high-speed transfer and can strict control group and the characteristics of cross-talk.

The United States Patent (USP) that Tyco company is had has all disclosed a kind of back panel connector that has insulating body and be located at the some circuit boards in the insulating body for the 6th, 171, No. 115 and the 6th, 267, No. 604.Wherein insulating body comprises a preceding insulation division and the organization department that can engage with preceding insulation division.Be laid with on each circuit board from its butt joint interface and extend to some conducting channels that the limit is installed.Insulation division was to connect with butt connector before butt joint interface extended.The limit is installed then welds reliably to link to each other and to insert in the slit of organization department mutually with terminal.The United States Patent (USP) the 6th of Berg company, 083, also disclose for No. 047 a kind of back panel connector is arranged, it comprises insulating body and can insert some integrated circuit plate module in the insulating body side by side, and each circuit board module includes a pair of substrate, be welded on the plurality of terminals of each substrate inner surface and be clamped in insulating frame between the substrate inner surface.The United States Patent (USP) that HonHai company has has disclosed a kind of back panel connector similarly the 6th, 168, No. 469, and its terminal also is welded on the printed circuit board (PCB).Yet these electric connectors have following some weak point: at first, it needs by the surface soldered technology terminal to be welded on the circuit substrate, and the required machine of surface soldered technology is comparatively expensive, will increase the manufacturing cost of connector; Secondly, when the substrate that need be used to transferring electric power when the substrate that originally is designed for transmission signals replaced, then original substrate and the terminal that combines with substrate must all be abandoned, the manufacturing cost that will increase connector equally like this; Moreover, these connectors do not adopt suitable guide mode to import the terminal of butt connector in it smoothly and guarantee these terminals and its interface reliable fit, so, the motion of the incorrect swiping of terminal and substrate edges will cause the precious metal wearing and tearing scratch of being plated in the termination contact portion.

The United States Patent (USP) the 6th, 239,827 and the 6th, 174 of Teradyne company, No. 202, No. the 6th, 343,955, the United States Patent (USP) of Berg company and the United States Patent (USP) the 6th that FCI S.A. has, all disclosed a kind of back panel connector 299, No. 484, it has the plurality of terminals that is formed by the metal material punching press.Each terminal includes the butt end that can match with the terminal of butt connector and can be installed in installation end on the motherboard.But these terminal configurations are relatively long and cost is higher.

The back panel connector that the United States Patent (USP) of No. the 5th, 980,321, United States Patent (USP) of Teradyne company and Berg company is disclosed for the 6th, 220, No. 896 includes and is located at the metallic plate that is used for ground connection between its adjacent two row of signal terminals.The weak point of this back panel connector is that metallic plate does not have can be guaranteed and elastic arm that the corresponding grounding assembly of butt connector reliably is connected, thereby may cause metallic plate to be affected with electrical contact the between grounding assembly.In view of this, be necessary really these existing electric connectors are improved to overcome described defective.

[summary of the invention]

The purpose of this utility model is to provide a kind of electric connector, and it has the firm group of interior plurality of conductive terminals of insulating body that is located at this electric connector, can form reliable electric connection with the grounding assembly of butt connector.

For achieving the above object, the utility model electric connector comprises insulating body and some signal terminals and earth terminal, wherein insulating body comprises the docking section that can dock with butt connector and can be installed in installation portion on the circuit board, signal terminal be housed in the insulating body with butt connector on signal path electrically cooperate, earth terminal also is housed in the insulating body, it comprises having and can and be positioned at the contact arm of holding part side with the holding part of the docking section secure fit of insulating body, and these contact arms are crooked to be provided with electrically to contact with the corresponding grounding assembly of butt connector.

Compared with prior art, the earth terminal of the utility model electric connector is provided with opening at its top, can relief portion corresponding and on second body that is formed on insulating body cooperate, earth terminal firmly is connected with insulating body, thereby guarantees to form reliable electric connection with the grounding assembly of butt connector.

[description of drawings]

Fig. 1 is installed on first, second circuit board respectively and the three-dimensional combination figure after connecting for the utility model male and female connector.

Fig. 2 is the three-dimensional combination figure of the utility model public connector after being installed on the first circuit board.

Fig. 3 is first body of the utility model public connector and the three-dimensional exploded view of second body.

Fig. 4 A and Fig. 4 B are the amplification stereogram of part-structure among Fig. 3.

Fig. 5 is the stereogram at first another visual angle of body among Fig. 3.

Fig. 6 A figure to Fig. 6 C is the amplification stereogram of signal terminal in three embodiment of the utility model public connector.

Fig. 7 is the amplification stereogram of the earth terminal of the utility model public connector.

Fig. 8 A and Fig. 8 B are the stereogram of different visual angles of the substrate of the utility model public connector.

Fig. 9 is second body of the utility model public connector and the phantom that group is established substrate within it.

Figure 10 is the top perspective view of the utility model female connectors after being installed on the second circuit board.

Figure 11 A and Figure 11 B are the part stereogram of female connectors different visual angles shown in Figure 10.

Figure 12 is certain a part of amplification view of the utility model male and female connector assembling back.

Figure 13 A and Figure 13 B fit together for the male and female connector and insulating body are removed part stereogram with the different visual angles of the mated condition that shows terminal and circuit board.

Figure 14 is the vertical view of circuit board among the utility model second embodiment.

[embodiment]

See also Fig. 1 to Fig. 3, Fig. 6 A to Fig. 8 B and shown in Figure 10, electric connector combination 1 comprises the public connector 10 that is installed on the first circuit board 3 and is installed in female connectors 12 on the second circuit board 5.Wherein public connector 10 comprises insulating body 14, some substrates 16 and is housed in some signal terminals 18 and earth terminal 20 in the insulating body 14.Female connectors 12 comprises insulating body 22 and is housed in some signal terminals 24 and earth terminal 26 in the insulating body 22.

See also Fig. 3 to shown in Figure 9, insulating body 14 comprises two interengageable first bodies 28 and second body 30.First body 28 has and can reach and the perpendicular lower surface 36 in rear surface with front surface 32, the rear surface 34 that female connectors 12 connects.First body 28 also has the some passages 38 that pass rear surface 34, lower surface 36 and terminate in front surface 32.First body 28 is provided with row's projection 40 at the top of its rear surface 34, the opposite end of contiguous this row's projection 40 is provided with two elongated shapes and leads rib 42.Lead rib 42 and extend the distance identical downwards, correctly engage with second body 30 to guide first body 28 with the height of rear surface 34.First body 28 further is provided with some guide plates 44 at contiguous its front surface 32 places.Each guide plate 44 is wedge shape so that dock with female connectors 12, and it has guarantees in the respective channel 38 that extends rearwardly into first body 28 respectively that substrate 16 firmly is contained in three branches 46 in it.First body 28 be positioned at forward and backward surperficial 32,34 and on both parallel median surfaces 50, be provided with this one row recess 48 (as shown in Figure 5).

Second body 30 is roughly L-shaped, and it comprises rectangular base 52, backrest 58 and two lengthwise bed hedgehopping portions 60.Wherein base portion 52 is provided with some conduits 54 in surface 56 thereon, and backrest 58 extends upward formation from the end edge of base portion 52 upper surfaces 56, and two bed hedgehopping portions 60 lay respectively at the forward and backward ora terminalis of base portion 52 bottom surfaces 62.54 of adjacent two conduits have a dividing plate 64, and the surface is formed with four grooves 66 thereon, and also have a relief portion 68 in each groove 66.Base portion 52 is provided with row's projection 70 on its front surface 72, can correspondingly be housed in the recess 48 of first body 28.Backrest 58 is provided with row's recess 74 on its top 76, with corresponding projection 40 of accommodating first body 28, backrest 58 also is provided with two guide rails 78 and leads rib 42 to accommodate on first body 28 at its two opposite sides edge 80 places.

Signal terminal 18 comprises contact site 82 that can engage with substrate 16 and the afterbody 84 that can engage with first circuit board 3.The contact site 82 and the afterbody 84 of signal terminal 18 are not positioned on the same vertical plane, but are separated with certain distance (joining shown in Figure 9) in the horizontal.Afterbody 84 can insert in the corresponding accepting hole 86 on the first circuit board 3 by the crimping mode.In the utility model second embodiment, signal terminal 18 ' has the afterbody 84 ' of inclination, and its corresponding connection pad 88 (as shown in figure 14) that can be pressed on the first circuit board 3 ' forms electrical path.In the utility model the 3rd embodiment, signal terminal 18 " comprise contact site 82 with two elastic arms 90 ", compression joint type terminal tails 84 " and be positioned at contact site 82 " and afterbody 84 " between inclination holding parts 92.Wherein holding parts 92 has the slit 94 and a supporting surface 95 that can straddle on the projection of second body, 30 bottom surfaces, the not detailed in the accompanying drawings announcement of these structures, but the female connectors 12 that cooperates Figure 11 B to be disclosed can be understood easily.

Earth terminal 20 comprises that four holding parts 100 that the top of five afterbodys 98 that extend in parallel out than downside of lengthwise main part 96, autonomous body 96, autonomous body 96 upwards extends in parallel out and the relative both sides that are positioned at each holding part 100 are crooked two contact arms 102 that are provided with downwards.Each holding part 100 roughly is " 7 " font, is formed with a cap portion 104 at its top.Offer the opening 106 of the corresponding relief portion 68 that can be used for accommodating second body 30 in the cap portion 104.108 places, contiguous first edge are laid with one and ranked first golden finger 112 on two apparent surfaces of substrate 16,110 places, contiguous second edge are laid with one and ranked second golden finger 114, also are provided with the some circuit 116 that connect first golden finger 112 and second golden finger 114 on the surface relatively two simultaneously.Above-mentioned two row's golden fingers 112,114 are vertical mutually.Substrate 17 also is provided with the respective branch 46 that three grooves 118 are used for accommodating corresponding guide plate 44 on first edge 108.

During assembling public connector 10, substrate 16 is inserted in the corresponding passage 38 to front surface 32 from the rear surface 34 of first body 28.First edge 108 of each substrate 16 is positioned at the rear portion of corresponding guide plate 44, and the groove 118 on this substrate 16 can correspondingly be accommodated the branch 46 of guide plate 44.Second edge, 110 parts of each substrate 16 are extended the lower surface 36 of first body 28 downwards, and its second golden finger 114 exposes outside first body 28.Signal terminal 18 and earth terminal 20 are inserted in the corresponding conduit 54 of second body 30, wherein eight signal terminals 18 are positioned at a side of conduit 54, earth terminal 20 then is positioned at the relative opposite side of conduit 54, thereby makes in the same conduit 54 signal terminal 18 and earth terminal 20 toward each other.The cap portion 104 of earth terminal 20 is housed in the groove 66, and its opening 106 is accommodated corresponding relief portion 68, by this structure earth terminal 20 firmly is connected with first body 28.Then first body 28 is set on second body 30 with 16 groups of substrates, second edge 110 of substrate 16 is housed in the corresponding conduit 54 of second body 30.The contact site 82 of signal terminal 18 and the contact arm 102 of earth terminal 20 are with respect to second golden finger, 114 swipings on the substrate 16 and form electrical path.110 at second edge of substrate 16 is clamped between the contact arm 102 of the contact site 82 of signal terminal 18 and earth terminal 20.Because of the intensity of the contact arm 102 of earth terminal 20 contact site 82 greater than signal terminal 18, so substrate 16 is touched arm 102 and pushes contact site 82 to, thereby guarantee the reliable electric connection (shown in ginseng Fig. 9, Figure 13 A and Figure 13 B) of 114 of contact site 82 and second golden fingers.

See also shown in Figure 10, Figure 11 A and Figure 11 B, the insulating body 22 of female connectors 12 comprises some lengthwise dividing plates 120, be formed on some passages 122 of 120 on adjacent two dividing plates and be housed in eight signal terminals 24 and the earth terminal 26 of the opposite side in the passage 122 respectively.The signal terminal 24 of female connectors 12 and the signal terminal 18 of the configuration of earth terminal 26 to public connector 10 " and earth terminal 20 similar, only different on the size.The signal terminal 24 of female connectors 12 also can have three kinds of different configurations, and it is respectively the signal terminal 18,18 ' and 18 with three kinds of different structures of public connector 10 " corresponding.Insulating body 22 is provided with a pair of lengthwise bed hedgehopping portion 124, a pair of guide posts 126 (one only is shown among Figure 11 B) and some protuberances 130 in its bottom surface 128.Signal terminal 24 comprises the inclination holding parts 132 with pair of ribs 134, at this 134 of flanks further is provided with a slit 136.Holding parts 132 straddles on protuberance 130, the protuberance 130 that its flank 134 clampings are therebetween, its supporting surface 135 then is resisted against the top of protuberance 130, avoids when female connectors 12 is installed on the second circuit board 5 signal terminal 24 to move in the insulating bodies 22 by this structure.This design also can be applicable on the public connector 10.

See also shown in Figure 12, Figure 12 A and Figure 12 B, when public connector 10 docks with female connectors 12, the contact site 82 of the signal terminal 24 of the corresponding female connectors 12 of wedge shape guide plate 44 promotions of public connector 10 and the contact arm 102 of earth terminal 26 separate both, can electrically contact with corresponding first golden finger 112 smoothly thereby make contact site 82 and contact arm 102 not need swiping to take place, and then the precious metal of avoiding being plated on the signal terminal contact site 82 is worn with first edge 108 of substrate 16.Then the afterbody 84,98 of the signal terminal 18 of public connector 10 and earth terminal 20 being listed as into a socket goes in same row's accepting hole 86 on the first circuit board 3.Identical method is also adopted in the assembling of female connectors 12.

See also Figure 14, among the utility model second embodiment, be laid with the accepting hole 86 ' that runs through and four that five rows are coated with metal on the first circuit board 3 ' and line up right connection pad 88, and each is positioned between adjacent two row's accepting holes 86 ' connection pad 88.When public connector 10 is installed on the first circuit board 3 ', the afterbody 98 of earth terminal 20 is housed in the corresponding accepting hole 86 ' in the crimping mode, and the contact site 84 ' of signal terminal 18 ' then is pressed on the corresponding connection pad 88 and by the power of compressing and forms reliable the electric connection between the two.

As Fig. 1, Fig. 2 and shown in Figure 10, electric connector combination 1 is provided with a pair of guide mechanism 138 in its relative both sides and accurately docks with female connectors 12 with guiding public connector 10.Each guide mechanism 138 comprises at a framework 140 of first body, 28 either sides and the room 142 between the guide plate 44 of framework 140 and vicinity.Each framework 140 surface 146 within it is provided with two guide keys 144 that stretch along fore-and-aft direction.Guide mechanism 138 comprises also and is located at the guide pillar 148 that its relative both sides have the wedge-shaped top 150 of the end face that extends insulating body 22 that its outer surface is provided with and guide keys 144 corresponding asymmetrically distributed groovings 152.When public connector 10 docks with female connectors 12, wedge-shaped top 150 guide plate 44 with at first insert corresponding room 142 before insulating body 22, signal terminal 24 and earth terminal 26 contact, guide keys 144 is housed in the corresponding grooving 152 simultaneously.After guide pillar 148 was housed in room 142 fully, then public connector 10 was promptly reached reliable the butt joint with female connectors 12.

Compared with prior art, the utlity model has many advantages.At first, because substrate 16 is housed in first body 28 movably, so can replace these substrates 16 easily according to different functional requirements, during as the need transferring electric power, these substrates 16 can be replaced by other device that is used for transferring electric power, and the signal terminal of corresponding public connector 10 and female connectors 12 and earth terminal all are used for transferring electric power; The second, because first edge 108 of substrate 16 covered by guide plate 44, then electroplate precious metal on the contact site 82 of signal terminal 18 and can be protected preferably and avoid being worn and torn; The 3rd, because of each lengthwise earth terminal 20 is connected with second body 30 by four holding parts 100, thereby make earth terminal 20 very firm with being connected of second body 20; The 4th, be partial to signal terminal 18 owing to substrate 16 is subjected to the thrust of earth terminal 20, thereby guarantee that the contact site 82 of signal terminal 18 and 114 foundation of connection pad electrically connect reliably.

Claims (10)

1. an electric connector can be installed on the circuit board, and it comprises insulating body, signal terminal and earth terminal; Wherein insulating body comprises the docking section that can dock with butt connector and can be installed in installation portion on the circuit board; Signal terminal be housed in the insulating body with butt connector on signal path electrically cooperate; Earth terminal is housed in the insulating body, it is characterized in that: earth terminal comprises the holding part that matches with the docking section of insulating body and is positioned at the contact arm of holding part side.

2. electric connector as claimed in claim 1 is characterized in that: this holding part roughly is " 7 " font, and is formed with cap portion on its top, in this cap portion, be provided with can with the opening of the docking section secure fit of insulating body.

3. electric connector as claimed in claim 2 is characterized in that: the docking section of above-mentioned insulating body has the relief portion that can be housed in the described opening.

4. electric connector as claimed in claim 1 is characterized in that: above-mentioned earth terminal further comprises main part, and above-mentioned holding part and contact arm all extend from this main part.

5. electric connector as claimed in claim 1 is characterized in that: above-mentioned earth terminal further comprises along extending to be installed in the afterbody on the circuit board away from the direction of contact arm.

6. electric connector as claimed in claim 1 is characterized in that: above-mentioned contact arm is crooked and is provided with electrically to contact with the corresponding grounding assembly of butt connector.

7. electric connector as claimed in claim 1 is characterized in that: described earth terminal comprise a lengthwise main part, from the lengthwise main part extend in parallel out specific range four holding parts, be positioned at corresponding holding part relative both sides four pairs of contact arms and from the lengthwise main part along five afterbodys that extend in parallel out away from the direction of contact arm.

8. electric connector as claimed in claim 1 is characterized in that: be provided with some passages in the above-mentioned insulating body, above-mentioned signal terminal and earth terminal are contained in the relative both sides of respective channel respectively.

9. electric connector terminal, can be housed in the insulating body of electric connector, it is characterized in that: this terminal comprises lengthwise main part, holding part, contact arm and afterbody, wherein the autonomous body of holding part extends, be provided with cap portion at its free end, this cap portion be provided with can with the opening of insulating body secure fit, contact arm also is the side that autonomous body extends and be positioned at holding part, it comprises the contact jaw that can electrically contact with the electrical assembly of butt connector, the plane at this contact jaw offset from body portion place is so that contact with the electrical assembly of butt joint; Afterbody from main part along extending away from the direction of contact arm to contact with corresponding electrical electrical component on the circuit board.

10. electric connector terminal as claimed in claim 9 is characterized in that: above-mentioned contact arm is symmetricly set on the relative both sides of holding part.

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