CN2604798Y

CN2604798Y - Electric connector

Info

Publication number: CN2604798Y
Application number: CN 03241549
Authority: CN
Inventors: 张国增
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2003-03-19
Filing date: 2003-03-19
Publication date: 2004-02-25
Anticipated expiration: 2013-03-19

Abstract

The utility model discloses an electric connector which is used for high speed data transmission, including an insulating body, a plurality of conducting terminals, an inner masking shell, an external masking shell, and a post masking shell. The insulating body includes a base and two butt welded plates which are the forward extension of the base and contains conducting terminals. The inner masking shell coats the periphery of the butt welded plate and forms a connecting part at the post end of the inner masking shell. The external masking shell, which can be electrically connected with the grounding circuit of the circuit board, coats the periphery of the base of the insulating body and extends forwards. The post masking shell contacts the connecting part of the inner masking shell and is electrically connected with the external masking shell. Thus less grounding points on the circuit board of the connector need to be installed so that the assignment of the ground circuit is simplified.

Description

Electric connector

[technical field]

The utility model is about a kind of electric connector, refers to a kind of socket connector that is used for high speed data transfer and meets IEEE 1394b transmission standard especially.

[background technology]

Alleged IEEE 1394 connectors of industry are meant and meet by Institute of Electrical and Electronics Engineers IEEE (Institute of Electrical and Electronics Engineers; IEEE) electric connector of the high-speed serial bus specification of Zhi Dinging, can be used as the interface of mass-memory units such as hard disk, CD, also can be applicable to computer peripherals such as printer, scanner, and consumer electronics products such as Digital Television, set-top box and video camera.After this, successively occurred meeting the connector of IEEE 1394-1995 and two kinds of specifications of IEEE1394a again, its transmission speed and performance improve.High speed, long IEEE 1394b specification have been released recently again apart from version, this specification is the significant improvement to basic 1394 specifications, and complete compatible existing IEEE 1394-1995 and IEEE 1394a specification, transmission speed can be promoted to 800Mbps, and supports to reach the long Distance Transmission of UTP-5 (unshielded twisted pair), plastic fiber and the glass optical fiber of 100 meters and the minimum 100Mbps of remaining on of data transmission bauds.

Concerning such as the electric connector of these high speed data transfer that meet IEEE 1394b specification, it is particularly important that anti-electromagnetic interference capability seems.Therefore the aforementioned electric connector generally is provided with inside and outside two-layer shielding casing with in case electromagnetic interference, and shielding casing ground connection can in time discharge the electric charge that accumulates on the shielding casing, thereby strengthens anti-electromagnetic interference capability.It is more or less freely on outer shielding casing earthing component to be set, and only needing to extend ground strip in outer shielding casing bottom one can be connected with the grounded circuit of circuit board.And interior shielding casing is embedded in the insulating body because of being arranged at electric connector central authorities and part, be provided with thereon corresponding earthing component make in shielding casing reach grounding function and acquire a certain degree of difficulty.See also United States Patent (USP) the 6th, 280, No. 209 and 6,315, No. 208 patents, its ground strip are to extend from interior shielding casing one, yet are exposed to the outer part of electric connector because the frame of interior shielding casing there is no, the difficulty of shielding casing punch forming and bending in the existence of above-mentioned ground strip will certainly increase, and ground strip and interior shielding casing junction fracture easily.Because inside and outside shielding casing is equipped with the ground strip that is engaged on the circuit board, also a plurality of earth points need be set on the printed circuit board (PCB) simultaneously, increase the trace arrangements complexity of printed circuit board (PCB).

And for example United States Patent (USP) the 6th, 482, No. 037 patent discloses, its be contained in the insulating body and with earthing component that interior shielding casing connects be independent manufacturing, though can solve the technical problem that aforementioned interior shielding casing moulding difficulty reaches ground strip and interior shielding casing junction frangibility greatly, but a plurality of earth points still can appear need being provided with on the above-mentioned printed circuit board (PCB) in this mode has increased the arrange defective of complexity of circuit board line.And this earthing component needs new die sinking manufacturing, increases the mould development cost.

Therefore, necessary the aforementioned electric connector is improved to overcome the aforementioned disadvantages of prior art.

[utility model content]

Main purpose of the present utility model provides a kind of electric connector, and its earthing mode can reduce the earth point on the circuit board that this electric connector is installed, and simplifies arranging of ground path.

The another purpose of the utility model provides a kind of electric connector, and its manufacturing process is simple, can reduce the welding difficulty that is mounted on the circuit board.

For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of electric connector comprises insulating body, plurality of conductive terminals, interior shielding casing, outer shielding casing and back baffle, wherein insulating body is provided with a base portion, extend to form the buttcover plate that pair of parallel is provided with forward from base portion, be provided with the plurality of terminals accepting groove in these buttcover plates; Plurality of conductive terminals is to be contained in the aforementioned corresponding terminal accepting groove, holding parts that each conducting terminal comprises the docking section, extend back from the docking section and the junction surface that links to each other with holding parts; Interior shielding casing is the buttcover plate periphery that is coated on the aforementioned dielectric body, is formed with first receiving space in it, and the shielding casing rear end is formed with connecting portion in this; Outer shielding casing can electrically connect with grounded circuit on the circuit board, it is coated on the base portion periphery of insulating body and forwards extends and forms, between aforementioned inside and outside shielding casing, be formed with second receiving space, aforementioned first and second receiving space can for the docking section of butt connector divide into groups into; Back baffle contacts with the connecting portion of aforementioned interior shielding casing, and electrically connects with aforementioned outer shielding casing.

Compared with prior art, the utility model micro coaxial cable connector assembly has following beneficial effect: be welded on the circuit board and electrically conduct with the grounded circuit with circuit board because outer shielding casing is provided with ground strip, and inside and outside shielding casing is reached and is electrically conducted by the back baffle, therefore, the ground strip of the earth point that is directly welded in circuit board need not be set on the interior shielding casing again, can be grounded, reduce electric connector and be mounted to welding difficulty on the circuit board, simplified manufacturing process, can reduce simultaneously the earth point on the circuit board, simplify arranging of ground path.

[description of drawings]

Fig. 1 is the stereogram of the utility model electric connector.

Fig. 2 is the front view of the utility model electric connector.

Fig. 3 is the three-dimensional exploded view of the utility model electric connector.

[embodiment]

Please refer to Fig. 1,2,3, the utility model electric connector is meant a kind of socket connector that is used for high speed data transfer and meets IEEE 1394b transmission standard in present embodiment, it comprises insulating body 1, plurality of conductive terminals 5, interior shielding casing 2, outer shielding casing 3, strutting piece 4 and back baffle 6.

Aforementioned dielectric body 1 has the base portion 13 of being located at the electric connector middle part, extend to form the buttcover plate 111,112 that pair of parallel is provided with forward from this base portion 13, respectively be provided with plurality of terminals accepting groove 12 in the upper surface of first buttcover plate 111 that is positioned at the below and the lower surface of second buttcover plate 112 that is positioned at the top, these terminal containing slots 12 extend back and run through aforementioned base portion 13.In second buttcover plate, 112 middle parts to aforementioned first buttcover plate, 111 direction projections, one raised line 113.Extend back in base portion 13 and to be formed with a frame 15.Extend back respectively from frame 15 both upper ends thereof and to be formed with first arm 14, on first arm, 14 relative two madial walls, all form first draw-in groove 141 and horizontally disposed second draw-in groove 142 that vertically is provided with, and between two first arms 14, be formed with and accommodate cavity 17, the slit 143 that extends before and after forming respectively in the relative two madial wall places of first arm, 14 rear end adjacent cavities 17 to accommodate aforementioned strutting piece 4.Outwards and forward extended to form second arm 16 respectively from both sides, frame 15 top.The position that is positioned at aforementioned slots 143 belows in first arm, 14 lower surfaces has extended to form reference column 18 downwards.

Conducting terminal 5 is into upper and lower double setting, and it has in order to the holding parts 52 that extends back with the matched docking section 51 of the corresponding terminal that docks electric connector (not shown), from docking section 51 and from holding parts 52 horizontal-extending and the junction surface 53 that goes out after twice bending backward.In the present embodiment, this junction surface 53 is to adopt surface adhering technology (SMT) to be welded on the circuit board.Aforementioned docking section 51 is contained in the corresponding terminal accepting groove 12 of buttcover plate 111,112, and 52 of holding parts are fixed in the corresponding terminal accepting groove 12 of base portion 13.Like this, conducting terminal 5 can be immobilizated in the insulating body 1.

Interior shielding casing 2 is to be formed by the punching out of sheet metal one with outer shielding casing 3, wherein interior shielding casing 2 is to be coated on buttcover plate 111,112 peripheries, roof 22 and diapire 23 that it includes the two side 21 of vertical setting and is horizontally disposed with and links to each other with two side 21 one, in the two side 21, roof 22 and diapire 23 all extend back and are formed with tabular location division 211,221,231, these location divisions are to be contained in the corresponding conduit (not shown) of base portion 13 of insulating body 1, wherein in the location division 211,231 both sides are formed with the fixing effect of some hangnails 200 when strengthening being contained in the base portion 13.Between buttcover plate 111,112 and two side 21, form first receiving space 7.Further extend to form the strip arm 212 that is contained in the set slit 143 of insulating body 1 first arm 14 backward in aforementioned location division 211, extend upward in arm 212 rear end bottom angled and form finger-like connecting portion 213.

Outer shielding casing 3 is to be coated on base portion 13 peripheral also extensions forward to form, and is formed with second receiving space 8 outside this between shielding casing 3 and the interior shielding casing 2.Aforementioned outer shielding casing 3 includes the two side 32 of vertical setting and is horizontally disposed with and connects the roof 33 and the diapire 34 of two side, wherein the contiguous roof in 32 rear ends, two side 33 places are formed with a block button hole 321 respectively, extend to form the ground strip 31 of vertical setting in downward and outside twice bending in block button hole 321 the place aheads, with circuit board on corresponding grounded circuit engage.Two side 21 upper punches of shielding casing 2 are established formation and are bent the finger-like shell fragment 24 that extends and partly be positioned at second receiving space 8 from back to front and outwardly in aforementioned, the two side 32 of outer shielding casing 3 also is provided with two finger-like shell fragments 35 corresponding to finger-like shell fragment 24 positions of interior shielding casing 2, these shell fragments 35 extend and part is positioned at second receiving space 8 from front to back and towards inner bending,

aforementioned shell fragment

24,35 in order to when butt joint electric connector (not shown) inserts and the butted part of butt connector connect and give its good location.

Aforementioned strutting piece 4 has the base portion 41 of a rectangular configuration, be formed with first fixture block 411 of the vertical setting that cooperates with above-mentioned first draw-in groove 141 and horizontally disposed second fixture block 412 that cooperates with above-mentioned second draw-in groove 142 respectively in base portion 41 both sides, cooperate with draw-in groove by corresponding fixture block strutting piece 4 is positioned in the cavity 17.Base portion 41 in this strutting piece 4 also is formed with the tabular protuberance 413 with crenation surface downwards, is used to provide support and positioning action to the junction surface 53 of aforementioned terminal 5.

Aforementioned back baffle 6 has a flat main part 61, extended to form button gripping arm 62 forward in these main part 61 both sides, each button gripping arm 62 upper punch is provided with clamping part 63 to cooperate with the block button hole 321 of aforementioned outer shielding casing 3 and to be mounted on the outer shielding casing 3, and this clamping part 63 is wedge shape shell fragment protruding or that extend from front to back in an embodiment.

During assembling, earlier conducting terminal 5 is mounted on from back to front in the terminal containing slot 12 in the above-mentioned insulating body 1; Again interior shielding casing 2 is organized to go in the insulating body 1 from front to back, its connecting portion 213 ends are exposed to outside first arm, 14 rear surfaces of insulating body 1; Again strutting piece 4 is organized to go in the above-mentioned cavity 17 from top to bottom, the junction surface 53 of terminal 5 is to be positioned on the crenation surface of protuberance 413 of strutting piece 4; Thereafter outer shielding casing 3 is organized from front to back, diapire 34 rear ends of outer shielding casing 3 are the frames 15 that are resisted against insulating body 1; At last, back baffle 6 is mounted on the outer shielding casing 3, at this moment, connecting portion 213 ends of interior shielding casing 2 are connected to just on the main part 61 of back baffle 6 and reach and the electric connection of outer shielding casing 3.

See also Fig. 1, when the electric connector after assembling is finished is installed on the circuit board, it is the depositing plate type structure, the supporting role that provides on the circuit board electric connector is provided second arm 16 of

insulating body

1,18 of reference columns are inserted in the corresponding hole on the circuit board so that positioning action to be provided, like this, make the major part of electric connector be positioned at the circuit board below.

Because outer shielding casing 3 is provided with ground strip 31 and is welded on the circuit board and electrically conducts with the grounded circuit with circuit board, and inside and

outside shielding casing

2,3 is reached and is electrically conducted by back baffle 6, therefore, the ground strip of the earth point that is directly welded in circuit board need not be set on the interior shielding casing 3 again, can be grounded, reduce electric connector and be mounted to welding difficulty on the circuit board, simplify manufacturing process, can reduce simultaneously the earth point on the circuit board, simplify arranging of ground path.

Claims

1. electric connector, can be arranged on the circuit board and peg graft for the butt joint electric connector, it comprises insulating body, plurality of conductive terminals, interior shielding casing and outer shielding casing, wherein insulating body has a base portion, extend to form the buttcover plate that pair of parallel is provided with forward from base portion, be provided with the plurality of terminals accepting groove in these buttcover plates, described terminal containing slot extends back and runs through aforementioned base portion; Plurality of conductive terminals is contained in the aforementioned corresponding terminal accepting groove, holding parts that each terminal includes the docking section, extend back from the docking section and the junction surface that links to each other with holding parts; Interior shielding casing is coated on the buttcover plate periphery of aforementioned dielectric body, is formed with first receiving space in it; Outer shielding casing can electrically connect with grounded circuit on the circuit board, it is coated on the base portion periphery of insulating body and forwards extends and forms, between aforementioned inside and outside shielding casing, be formed with second receiving space, aforementioned first and second receiving space can for the docking section of butt connector divide into groups into; It is characterized in that: shielding casing Hou end forms connecting portion in described, and electric connector also comprises the back baffle, and this back shielding casing contacts with the connecting portion of aforementioned interior shielding casing, and electrically connects with aforementioned outer shielding casing.

2. electric connector according to claim 1 is characterized in that: this electric connector is the socket connector that is used for high speed data transfer and meets IEEE 1394b transmission specification.

3. electric connector according to claim 1, it is characterized in that: the shielding casing roof and the diapire that have the two side of vertical setting and be horizontally disposed with and link to each other with the two side one in described, all extending back in two side, roof and diapire is formed with the tabular location division that is contained in the insulating body base portion.

4. electric connector according to claim 3 is characterized in that: extending back in set location division, interior shielding casing two side is formed with the strip arm, and aforementioned connecting portion is finger-like and extends upward formation in this arm rear end bottom angled.

5. electric connector according to claim 1, it is characterized in that: extending back in the base portion of insulating body is formed with a pair of arm, in between two arms, be formed with cavity, this electric connector also comprises the strutting piece that is positioned in the aforementioned cavity, it has the base portion of rectangular configuration, extends to form the tabular protuberance with crenation surface of supporting terminal junction surface, location downwards in base portion.

6. electric connector according to claim 5 is characterized in that: be formed with draw-in groove on relative two madial walls of insulating body arm, be formed with the fixture block that cooperates with aforementioned draw-in groove in strutting piece base portion both sides.

7. electric connector according to claim 6, it is characterized in that: the aforementioned draw-in groove of insulating body comprises first draw-in groove and horizontally disposed second draw-in groove of vertical setting, and the fixture block of aforementioned strutting piece comprises first fixture block of the vertical setting that cooperates with aforementioned first draw-in groove and horizontally disposed second fixture block that cooperates with aforementioned second draw-in groove.

8. electric connector according to claim 4, it is characterized in that: the base portion in insulating body extends to form a pair of arm forward, form the slit that extend front and back respectively in the relative two madial wall places of aforementioned arm rear end, the arm of shielding casing is to be contained in this slit in aforementioned, terminal protruding being exposed to outside this slit of the aforementioned connecting portion of interior shielding casing.

9. electric connector according to claim 8, it is characterized in that: the back baffle has a flat main part, extended to form the button gripping arm forward in these main part both sides, each button gripping arm upper punch is provided with clamping part, is formed with the block button hole that cooperates with aforementioned clamping part in both sides, outer shielding casing rear end.

10. electric connector according to claim 9 is characterized in that: the aforementioned protruding outer connecting portion end of slit that is exposed to of interior shielding casing is to be resisted against in the aforementioned body portion of back baffle.