CN2665962Y

CN2665962Y - Electric connector

Info

Publication number: CN2665962Y
Application number: CN 200320110280
Authority: CN
Inventors: 张国增; 王猛
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: 2003-10-15
Filing date: 2003-10-15
Publication date: 2004-12-22
Anticipated expiration: 2013-10-15
Also published as: JP2005123163A

Abstract

An electrical connector can be installed on a circuit board, comprising an insulation body, a plurality of conductive terminals and a sheltering shell that surrounds the insulation body. The insulation body is provided with a plurality of terminal holding channels, the conductive terminals are correspondingly held in a plurality of terminal holding channels. The sheltering shell consists of a fixing leg that can be fixed on the circuit board. The fixing leg consists of a first welding part and a second welding part, wherein, the first welding part and the second welding part can be welded and fixed on the circuit board by using different welding methods, so as to enable the electrical connector to be able to form the reliable electrical connection with the circuit boards.

Description

Electric connector

[technical field]

The utility model is relevant a kind of electric connector, refers to a kind of structure improved electric connector of shielding casing that has especially.

[background technology]

USB (Universal Serial Bus is called for short USB) electric connector generally is fixed on the circuit board, to form the path of signal transmission.It adopts usually and open some through holes on circuit board, directly insert in the corresponding through hole of circuit board and welding by the fixing pin on the shielding casing that is surrounded on the insulation shell outside then, be usually said through hole solder technology (Though Hole Technology, be called for short THT), electric connector is fixedly welded on the circuit board.

As announce in the Chinese patent in October 3 calendar year 2001 and announce CN2452154Y number, name is called the electric connector that is disclosed in ' electric connector ' and just adopts the aforementioned through-hole solder technology, and electric connector is fixedly welded on the circuit board.Yet, the fixing pin need have higher intensity when adopting the welding of through hole solder technology, otherwise have certain deformation through repeatedly plugging back fixing pin, and the welding position of electric connector and circuit board also can become flexible, influence this electric connector and cooperate, thereby influence the reliable transmission of signal with the circuit board excellent electrical property.

Therefore, need a kind of better welding manner of design to overcome the shortcoming of above-mentioned prior art.

[utility model content]

The purpose of this utility model is to provide a kind of electric connector with improvement shielding casing structure.It can make, and electric connector is more reliable to be coupled on the circuit board, thereby guarantees the reliability of signal transmission.

For achieving the above object, the utility model adopts following technical scheme: electric connector includes insulating body, plurality of conductive terminals and is enclosed in the outer shielding casing of insulating body, be provided with plurality of terminals in this insulating body and accommodate passage, conducting terminal is contained in aforementioned plurality of terminals and accommodates in the passage, aforementioned shielding casing includes the fixing pin that can be fixed on the circuit board, this fixing pin includes first weld part and second weld part, and this first weld part adopts different welding manners to be fixedly welded on the circuit board with second weld part.

Compared with prior art, the utility model electric connector can be welded on the circuit board reliably, and weld strength is good, and stability is high, makes electric connector reach reliable electric connection with circuit board.

[description of drawings]

Fig. 1 is the three-dimensional exploded view of the utility model electric connector.

Fig. 2 is the part three-dimensional exploded view of the utility model electric connector.

Fig. 3 is the insulating body of the utility model electric connector and the three-dimensional combination figure of terminal.

Fig. 4 is the three-dimensional combination figure of the utility model electric connector.

Fig. 5 is the cutaway view along A-A line direction among Fig. 4.

The end view that Fig. 6 matches with circuit board for the utility model electric connector.

[specific embodiment]

See also Fig. 1, Fig. 3 and shown in Figure 6, the utility model electric connector includes insulating body 1, is coated on the shielding casing 2 in insulating body 1 outside, organizes the baffle plate 3 and the plurality of conductive terminals 4 that place insulating body 1 rear end face 13.Wherein insulating body 1 is provided with the base portion 11 that vertically extends, extend forward to be provided with from the front surface of this base portion 11 and be laminal hyoplastron 12, the basal surface 110 of this base portion is being provided with two projections 130 near the hyoplastron place, and the fore-end of each projection 130 and base portion 11 basal surfaces 110 form gap 140.In addition, extend back from a sidewall front end of this hyoplastron 12 and to run through base portion 11 and be formed with the some passages 14 of accommodating that vertically are arranged in a vertical setting of types, plurality of conductive terminals 4 correspondence respectively is contained in these and accommodates in the passage 14, each is accommodated passage 14 and includes the groove 142 that is arranged at hyoplastron 12 surfaces respectively, certainly the extend back through hole 143 that runs through insulating body 1 base portion 11 and be connected with through hole 143 and lay respectively at the slit 141 of this through hole two side about in the of 143 of this groove 142.Extending back from base portion rear end face 13 relative both sides forms a pair of fin 17, and the bottom that relies on circuit board 5 one sides at base portion 11 rear end faces 13 has been wholely set several spacer blocks 15, forms interval trough 16 therebetween, to isolate the afterbody of each conducting terminal 4.

See also Fig. 1, Fig. 5 and shown in Figure 6, conducting terminal 4 vertically correspondence is contained in and accommodates accordingly in the passage 14, and it has crooked docking section 41, the connecting portion 42 that extends back from docking section 41, be formed at connecting portion 42 ends can be sticked in holding parts 43 in the slit 141, terminal along being parallel to kink 44 that circuit board 5 directions vertically are bent to form and terminal along the afterbody 45 towards the vertical bending of circuit board 5 directions from kink 44 from holding parts 43.The docking section 41 of aforementioned plurality of conductive terminals 4 is vertically to arrange in regular turn, and the afterbody 45 of conducting terminal 4 is to be transversely arranged after vertically bending towards circuit board 5 directions, for each tail portion of terminal 45 is staggered so that weld, the length of the kink 44 of aforementioned in the present embodiment plurality of conductive terminals 4 has nothing in common with each other, and the vertical direction overbending direction of below terminal kink is opposite with the overbending direction of other terminal kinks, also can adopt modes such as the overbending direction of any or two terminals and the kink of other three or two terminals is opposite that terminal tails is staggered in other embodiments, no longer describe in detail herein.The terminal tails 45 of these conducting terminals 4 is contained in respectively in the corresponding interval trough 16 to keep preset space length and location easily, warpage takes place and short circuit phenomenon occurs being in contact with one another in the afterbody 45 that can prevent adjacent conductive terminal 4, improves the signal safety of transmission.

In addition, electric connector is provided with wedge shaped baffle 3, by with fin 17 cooperatively interact and spacer block 15 stop the location combine closely at the rear end face 13 of insulating body 1, to reach fixed terminal afterbody 45 and to isolate shielding casing 2 and the effect of conducting terminal 4.

See also Fig. 1 and shown in Figure 4, shielding casing 2 is provided with corresponding to the shape of insulating body 1 and can be coated on outside it, it comprises first shielding casing 21 and second shielding casing 22, first shielding casing 21 is to surround the frame mouth structure that forms by wall, each bends backward to extend and is provided with a board 211 from the two side of this frame mouth structure, and the extending end of this board 211 convexes with cramp 212, the diapire rear end of this first shielding casing 21 is formed with trapezoid-shaped openings forward, the dual-side of this trapezoid-shaped openings extends into respectively in the gap 140 that bottom surface 110 and the projection 130 of the base portion 11 of aforementioned dielectric body 1 form, thereby locate first shielding casing 21, and this trapezoid-shaped openings is provided with fixing pin 213 on the side away from base portion 11 directions, and this fixing pin 213 comprises from the diapire place connecting portion 216 that extends towards circuit board 5 directions and along terminal perpendicular to connecting portion 216 and be parallel to first weld part 214 and second weld part 215 towards the vertical bending of circuit board 5 directions from the first weld part end that circuit board 5 directions form.Second shielding casing 22 that matches with first shielding casing 21 is to be "  " shape structure by what two side 224 and rear wall 225 formed, on its rear wall, be provided with square opening 222, pass and bend for the square cramp 212 on the board 211 of aforementioned first shielding casing 21 and fasten its edge and make first, two

shielding casings

21,22 combine mutually, and second shielding casing, 22 lower sidewall are provided with fixing pin 23, and this fixing pin 23 comprises from sidewall 224 places the connecting portion 226 that extends towards circuit board 5 directions and along terminal perpendicular to connecting portion 226 and be parallel to first weld part 221 and second weld part 223 towards the vertical bending of circuit board 5 directions from the first weld part end that circuit board 5 directions form.

See also Fig. 2 and shown in Figure 4,4 groups of conducting terminals is solid in insulating body 1, the docking section 41 of conducting terminal 4 is inserted and is contained in the groove 142 of hyoplastron 12 via described through hole 143, and be retained in the slit 141 of accommodating passage 14 by the holding parts 43 of conducting terminal 4, the kink 44 of conducting terminal 4 is close to base portion 11 rear end faces 13 and is vertical arrangement along parallel circuit boards 5 directions, 45 edges of conducting terminal 4 afterbodys are directed downwards the interval trough 16 that extends and pass rear end face 13 bottoms of insulating body 1, the short circuit to prevent 4 mutual butts of conducting terminal perpendicular to circuit board 5.3 groups of solid rear end faces 13 of baffle plate at insulating body 1, and stop the location by the spacer block 15 of fin 17 in the bottom of rear end face 13 both sides, and the kink 44 of conducting terminal 4 and afterbody 45 further are interposed between baffle plate 3 and the rear end face 13, and separate conducting terminal 4 in shielding casing 2 in case this two contact and cause short circuit phenomenon.The insulating body 1 that is combined with baffle plate 3 and contains conducting terminal 4 is gone in first shielding casing 21 from the rear end face group of shielding casing 2 first shielding casings 21, second shielding casing 22 of shielding casing 2 is then corresponding to embed above-mentioned group and goes in first shielding casing 21 and contain in the combining structure of insulating body 1 of conducting terminal 4, the square cramp 212 of first shielding casing 21 bends inwards and fastens square opening 222 with second shielding casing, and formation electric connector as shown in Figure 4, when this electric connector was mounted on the circuit board 5, conducting terminal 4 was welded on the circuit board by its afterbody 45.Yet, aforementioned first shielding casing 21 is that first weld part 214 by its fixing pin 213 is welded on the circuit board with surface soldered technology (SMT) earlier, then, second weld part 215 of the fixing pin 213 of this first shielding casing 21 is welded on the circuit board with through hole solder technology (THT) again, aforementioned second shielding casing 22 also is that first weld part 221 by its fixing pin 23 is welded on the circuit board with surface soldered technology (SMT) earlier, then, second weld part 223 of the fixing pin 23 of this second shielding casing 22 is welded on the circuit board with through hole solder technology (THT) again.

Claims

1. electric connector, can be installed on the circuit board, it includes insulating body, plurality of conductive terminals and is enclosed in the outer shielding casing of insulating body, be provided with plurality of terminals in this insulating body and accommodate passage, the conducting terminal correspondence is contained in aforementioned plurality of terminals and accommodates in the passage, it is characterized in that: aforementioned shielding casing includes the fixing pin that can be fixed on the circuit board, this fixing pin includes first weld part and second weld part, and this first weld part adopts different welding manners to be fixedly welded on the circuit board with second weld part.

2. electric connector as claimed in claim 1, it is characterized in that: aforementioned shielding casing includes first shielding casing and second shielding casing, and aforementioned first shielding casing is interlocked with the hole of being located on aforementioned second shielding casing by being located at the cramp that is convexly equipped with on the fish plate on its two side.

3. electric connector as claimed in claim 1 is characterized in that: aforementioned first weld part is to extend along the direction that is parallel to circuit board from shielding casing, and aforementioned second weld part is to extend with the direction of perpendicular circuit board from the aforementioned first weld part end.

4. as claim 1 or 3 described electric connectors, it is characterized in that: aforementioned first weld part adopts face bonding connection technology (SMT) to be welded on the circuit board, and aforementioned second weld part adopts through hole solder technology (THT) to be welded on the circuit board.

5. electric connector as claimed in claim 1, it is characterized in that: the docking section that the aforementioned dielectric body includes base portion and extends forward from base portion, aforementioned terminal accommodating passage includes the groove that is arranged at surface, aforementioned docking section, certainly the extend back through hole that runs through the aforementioned dielectric body base and be connected with through hole and lay respectively at the slit of two side about this through hole of this groove.

6. electric connector as claimed in claim 1, it is characterized in that: aforementioned conducting terminal is provided with holding parts and the terminal vertical bending and the parallel circuit boards direction of this holding parts are formed with a kink certainly, the length of this kink has nothing in common with each other, and vertical direction the overbending direction of below terminal kink is opposite with the overbending direction of other terminal kinks.

7. electric connector as claimed in claim 6 is characterized in that: be provided with corresponding up and down slit of accommodating the terminal holding parts accommodating passage one side.

8. electric connector as claimed in claim 1 is characterized in that: aforementioned conducting terminal is provided with terminal tails, is provided with interval trough on insulating body rear side appropriate location, in order to isolate this terminal tails of location.

9. electric connector as claimed in claim 8 is characterized in that: electric connector includes and closely combines the baffle plate that is used for fixing aforementioned terminal tails in the insulating body rear end face.

10. electric connector as claimed in claim 1, it is characterized in that: the first shielding casing bottom surface is formed with trapezoid-shaped openings, the lower surface of the base portion of insulating body is provided with projection, and this projection fore-end and base portion bottom surface form can accommodate aforementioned trapezoid-shaped openings dual-side and with the gap of first shielding casing location.