CN2519482Y - Electric connector - Google Patents

Abstract

The utility model discloses an electrical connector used in high-speed data transmission, comprising an insulating body, a plurality of conductive terminals, an inner layer of shielding shell body and an outer layer of shielding shell body, and a pair of grounding components installed from the back of the body. The insulating body comprises a base and a pair of but-welded plates extends forward form the base. The conductive terminals are arranged on the but-welded plates; the inner shielding shell body covers the periphery of the but-welded plates; the outer shielding shell body coves the periphery of the base and extends forward; the grounding component which is arranged in the insulating body close to the inner shielding shell body at least comprises a propping part propped in the inner shielding shell body and a graft union extending out of the insulating body. The graft union is connected with the corresponding grounding circuit of the circuit board to realize a better grounding effect and stronger anti-electromagnetic interference ability. Furthermore, the grounding component is made separately, which is easy to change.

Description

Electric connector

[technical field]

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

[background technology]

Alleged IEEE 1394 connectors of industry are meant and meet by Institute of Electrical and Electronics Engineers IEEE (Instituteof 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 applied to computer interface equipment 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 IEEE 1394a again, its transmission speed and performance improve.High speed, long IEEE1394b specification have been released recently again apart from version, this specification is the significant improvement to 1394 basic specifications, and complete compatible existing IEEE1394-1995 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.Rely on the advantage that showing of high speed and long Distance Transmission, IEEE 1394 has the trend that becomes the conformability of PC product, communication system and home network interface.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 above-mentioned electric connector generally is provided with inside and outside two-layer shielding casing and is used for preventing electromagnetic interference that shielding casing ground connection can strengthen anti-electromagnetic interference capability, also can reach the effect that static discharges.It is more or less freely on the shielding casing earthing component to be set outside, and shielding casing bottom one is extended ground strip and can be connected with the earthed circuit of circuit board outside.And interior shielding casing is embedded in the insulating body because of being arranged on electric connector central authorities and part, than difficulty corresponding earthing component is set thereon, and shielding casing is reached the function of ground connection in making.Afterwards, industry once someone designs a kind of ground strip that extends from interior shielding casing one, yet, interior shielding casing is directly exposed to the outer part of connector because 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.

So, how more convenient and be provided with effectively that an earthing component is connected with the interior shielding casing of above-mentioned electric connector so that its ground connection, really become people in the industry's a big technical barrier.

[summary of the invention]

The purpose of this utility model is to provide a kind of electric connector, and it has preferable ground connection effect and stronger anti-electromagnetic interference capability, and its earthing component is independent manufacturing, easily changes.

For achieving the above object, the utility model adopts following technical scheme: the utility model electric connector is arranged on the circuit board and pegs graft for the butt joint electric connector, it includes insulating body, plurality of conductive terminals, interior shielding casing, outer shielding casing and earthing component etc., wherein insulating body has the base portion that is located at the electric connector rear end, 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 on this buttcover plate, these terminal containing slots extend back and run through above-mentioned base portion; Plurality of conductive terminals is to be housed in the above-mentioned corresponding terminal accepting groove, and each conducting terminal includes and docks docking section, the holding parts that extends back from the docking section that electric connector connects and link to each other with holding parts and extend the external junction surface that is connected with corresponding circuits on the circuit board of insulating body; Interior shielding casing is coated on the buttcover plate periphery of above-mentioned insulating body, and wherein the two side of buttcover plate and interior shielding casing surrounds and is formed with first receiving space; It is peripheral and forwards extend and form that outer shielding casing is coated on the base portion of insulating body, is formed with second receiving space between above-mentioned inside and outside shielding casing, described first and second receiving space can for the docking section of butt connector divide into groups into; The earthing component group is located in the next-door neighbour in the insulating body of shielding casing, its comprise at least be connected on the shielding casing abutting part and extend the outer junction surface of insulating body, thereby the corresponding earthed circuit connection ground connection of this junction surface and circuit board.

Compared with prior art, the utility model electric connector is gone in the insulating body of shielding casing in the next-door neighbour by the earthing component group of independent manufacturing, realized the ground connection of interior shielding casing, thereby make electric connector have preferable ground connection effect and anti-preferably electromagnetic interference capability, and the earthing component of making separately is easy to change.

[drawing explanation]

Fig. 1 is the three-dimensional combination figure of the utility model electric connector.

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

Fig. 3 is the unassembled rear perspective view of covering bonnet of the utility model electric connector.

Fig. 4 is the cutaway view of Fig. 2 A-A direction along the line.

Fig. 5 is the stereogram of the utility model electric connector earthing component.

[embodiment]

Please refer to Fig. 1 to Fig. 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 the present embodiment, and it comprises insulating body 1, plurality of conductive terminals 5, interior shielding casing 2, outer shielding casing 3 and earthing component 6 etc.

Above-mentioned insulating body 1 has the base portion 13 that is located at the electric connector rear end, extend to form the buttcover plate 111,112 that pair of parallel is provided with forward from this base portion 13, wherein be positioned at the lower surface of first buttcover plate 111 of top and the upper surface of second buttcover plate 112 that is positioned at the below and respectively be provided with plurality of terminals accepting groove 12, these terminal containing slots 12 extend back and run through above-mentioned base portion 13, and end has the opening 134 that is " protruding " font.At second buttcover plate, 112 middle parts to above-mentioned first buttcover plate, 111 direction projections, one raised line 113.On vertical direction, form some grooves 135 in above-mentioned base portion 13 rear end lower, base portion 13 is positioned at the also corresponding some grooves 139 that are formed with after leaning on than groove 135 of the part of described groove 135 tops, and these grooves 135,139 are used for accommodating the corresponding site of conducting terminal 5.In addition, contiguous outer shielding casing 3 positions are in the vertical direction and are provided with slit 131 in base portion 13 both sides, are used for accommodating described interior shielding casing 2.Outside shielding casing 3 directions extend to form the transverse concave groove 132 that is connected with slit 131 at these slit 131 middle parts, further run through downwards with the place of connection of slit 131 at groove 132 and to be formed with slit 133, gradually wide formation one enlarged portion 1331 in place, contiguous bottom, slit 133 belows.

See also Fig. 3, conducting terminal 5 is to go to upper and lower double setting, and it has the docking section 52 that connects with butt joint electric connector (not shown), first holding parts 51 that extends back from docking section 52, bend second holding parts 53 that extends backward and link to each other with second holding parts 53 from first holding parts 51 and also extend the junction surface 54 to be connected with the corresponding circuits of circuit board outside the base portion 13 downwards.In the present embodiment, this junction surface 54 is to adopt surface adhering technology (SMT) to be welded on the circuit board.Above-mentioned docking section 52 is housed in the above-mentioned corresponding terminal accepting groove 12, and first holding parts 51 is held in " protruding " font opening 134 places of described terminal containing slot 12 ends, 53 of second holding parts and formed groove 135,139 interference engagement in base portion 13 rear ends.So, conducting terminal 5 can be retained in the insulating body 1.

See also Fig. 1 to Fig. 3, 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 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 form first receiving space 4 between buttcover plate 111,112 and two side 21.Described sidewall 21 rear ends are to be embedded in the set slit 131 in the both sides, base portion 13 rear end of insulating body 1.Outer shielding casing 3 comprises and covers framework 3a and cover bonnet 3b, and wherein covering framework 3a, to be coated on base portion 13 peripheral and extend the frame mouth shapes that are square forward, covers at this and be formed with second receiving space 7 between framework 3a and the interior shielding casing 2.Above-mentionedly cover roof 33 and the diapire 34 that framework 3a also includes the two side 32 of vertical setting and is horizontally disposed with and connects the two side, wherein two side 32 rear end lower have a square hole 321, one is extended with lug shape ground strip 31 below this square hole 321, be used for circuit board on corresponding earthed circuit engage.Roof 33 middle parts are formed with a depressed part 37.Cover bonnet 3b and cover rear end face at base portion 13, both sides, its underpart are extended with a square frame shape plate body 38 forward, be formed with the button that can be buckled in the above-mentioned square hole 321 and hold sheet 381 in the middle of this plate body 38.21 middle parts, two side of shielding casing 2 are provided with the finger-like shell fragment 24 that second receiving space 7 is extended and is positioned in bending from back to front in above-mentioned, 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, it is to bend extension from front to back and also be positioned at second receiving space 7, and described shell fragment 24,35 is used for when butt connector (not shown) inserts and the butted part of butt connector connects and give its good location.The top, rear portion of sidewall 32 is provided with a button gripping arm 36, and it bends inwards and detain and is held in both sides, base portion 13 rear end.

Please refer to Fig. 4, Fig. 5, above-mentioned each earthing component 6 has the strip main body portion 63 that is provided with on vertical direction, main part 63 upper ends have been bent to form kink 66, from these kink 66 horizontal-extendings first holding parts 62 is arranged, be formed with some hangnails 621 at these first holding parts, 62 1 lateral margins, can with the sidewall interference engagement of the transverse concave groove 132 of base portion 13.Do not establish hangnail 621 1 side front ends at first holding parts 62 and oppositely be extended with a finger-like abutting part 61, be used for connecting with interior shielding casing 2 to main part 63 directions.Forming one between abutting part 61, first holding parts 62 and kink 66 can be for the finger-like space 67 of abutting part 61 elastic compression.The bending downwards of autonomous body 63 has extended to form a junction surface 65, is used for being connected with the corresponding earthed circuit of circuit board, and be to adopt surface adhering technology (SMT) to be welded on the circuit board in the present embodiment.Main part 63 forms second holding parts 64 that both sides are provided with projection apart from these 65 a distance, junction surface.Earthing component 6 is after the rear group of the body 1 that insulate is gone into base portion 13 both sides correspondence positions, its main part 63 is housed in vertical slit 133 of above-mentioned base portion 13, first holding parts 62 is held in the groove 132,61 of abutting parts are connected on sidewall 21 rear ends of the interior shielding casing 2 that is contained in the slit 131, lean with above-mentioned kink 66 through the elasticity extruding, 64 interference of second holding parts are held in the enlarged portion 1331 of above-mentioned vertical slit 133.So, earthing component 6 firm windings and closely contact with interior shielding casing 2 in the base portion 13 of insulating body 1, thereby reach preferable ground connection effect and stronger anti-electromagnetic interference capability.In addition, this earthing component 6 is independent moulding manufacturings, also changes easily when impaired.

Claims (10)

1. electric connector, be arranged on and be used on the circuit board pegging graft for the butt joint electric connector, it comprises: insulating body, it has the base portion that is positioned at the rear end, pair of parallel setting and opposed facing first buttcover plate and second buttcover plate have been extended to form forward from base portion, be provided with the plurality of terminals accepting groove on these buttcover plates, these terminal containing slots extend back and run through above-mentioned base portion; Plurality of conductive terminals, be to be housed in the above-mentioned corresponding terminal accepting groove, each conducting terminal comprises with the docking section that connects of butt joint electric connector, the holding parts that extends back from the docking section and links to each other with holding parts and extend the junction surface to be connected with related circuit on the circuit board outside the insulating body; Interior shielding casing is the buttcover plate periphery that is coated on above-mentioned insulating body, is formed with first receiving space in it; Outer shielding casing is that to be coated on the base portion of insulating body peripheral and forwards extend and be frame mouth shape, is formed with second receiving space between described inside and outside shielding casing, above-mentioned first and second receiving space can for the docking section of butt connector divide into groups into; It is characterized in that: this electric connector also includes earthing component, be to organize in the insulating body that is located near interior shielding casing, it includes and is connected to the abutting part on the interior shielding casing and extends the outer junction surface of insulating body, and the junction surface can be connected with the earthed circuit of circuit board.

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

3. electric connector as claimed in claim 1, it is characterized in that: be positioned at the top the first buttcover plate lower surface and be positioned at the below the second buttcover plate upper surface be respectively equipped with some terminal containing slots that are parallel to each other, these terminal containing slot ends are " protruding " font opening, and second buttcover plate middle part has the raised line to the first buttcover plate direction projection.

4. electric connector as claimed in claim 1 is characterized in that: shielding casing has the two side of vertical setting and is horizontally disposed with and links to each other with the two side one in described roof and diapire.

5. electric connector as claimed in claim 4, it is characterized in that: base portion has the upper and lower two row's grooves that form on the vertical direction, last row's channel shaped is formed in down the rear of row's groove, contiguous outer shielding casing position, base portion both sides is in vertical direction and is provided with slit, is used for accommodating the two side of above-mentioned interior shielding casing; Slit middle part outwards shielding casing direction extends to form the transverse concave groove that is connected with slit, further runs through to be formed with slit the gradually wide formation enlarged portion in slit place, contiguous bottom downwards with the slit place of connection at groove.

6. electric connector as claimed in claim 5, it is characterized in that: conducting terminal becomes upper and lower two rows to be provided with, described holding parts comprises first holding parts that extends back from the docking section and bends second holding parts that extends backward from this first holding parts, first holding parts is held in above-mentioned terminal containing slot end " protruding " font opening part, the groove interference engagement of second holding parts and above-mentioned base portion.

7. electric connector as claimed in claim 1, it is characterized in that: described outer shielding casing includes and is coated on covering framework and being coated on the bonnet that covers of base portion rear end face of base portion periphery, cover the framework rear end lower and have a square hole, cover bonnet two side lower parts and be extended with a square frame shape plate body to covering the framework direction, have button in the middle of this plate body and holds sheet, this button is held sheet and is positioned at the square hole that covers on framework buckle mutually.

8. electric connector as claimed in claim 5, it is characterized in that: each earthing component has the main part that vertically is provided with, the main part upper end is bent to form kink, this kink horizontal-extending forms first holding parts, forms the sidewall interference engagement of the groove of some hangnails and above-mentioned base portion in the one lateral margin.

9. electric connector as claimed in claim 8, it is characterized in that: earthing component is not established hangnail one side front end in first holding parts and oppositely is extended with a finger-like abutting part to the main part direction, it is connected on the sidewall of interior shielding casing, and be pressed on the kink by elasticity, and between first holding parts, abutting part and kink, form one can be for the finger-like space of abutting part elastic compression.

10. electric connector as claimed in claim 8, it is characterized in that: earthing component main part bending has downwards extended to form a junction surface, be used for and circuit board the electrotropism loop is connected, this main part forms second holding parts apart from a distance, junction surface, main part is housed in the slit of above-mentioned base portion, the enlarged portion interference of second holding parts and above-mentioned slit below.

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