CN202189945U

CN202189945U - Electric connector

Info

Publication number: CN202189945U
Application number: CN2011202465221U
Authority: CN
Inventors: 胡军华; 张道宽
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: 2011-07-13
Filing date: 2011-07-13
Publication date: 2012-04-11
Anticipated expiration: 2021-07-13

Abstract

The utility model discloses an electric connector used for being arranged on an external circuit board. The electric connector includes an insulation body, a shielding housing cladding the insulation body and a conductive terminal welded on an external circuit board. The insulation body includes an accommodation space, a bottom wall corresponding to the external circuit board and a through hole passing through the bottom wall and communicated with the accommodation space. The through hole possesses an opening facing the external circuit board, and the shielding housing is provided with a shielding sheet for shielding the opening. Thereby, the high temperature generated in a welding process cannot be conducted to the interior of the electric connector through the through hole, and a tin welding risk existing at the welding position of internal electronic components of the electric connector is prevented.

Description

Electric connector

[technical field]

The utility model relates to a kind of electric connector, relates in particular to the anti-thermal structure of shielding casing in the electric connector.

[background technology]

The RJ45 electric connector that uses at present generally comprises insulating body and is contained in the plurality of conductive terminals of insulating body.The receiving space that insulating body is provided with in order to accommodate butt connector reaches the diapire towards the external circuit board, and receiving space runs through a side at contiguous interface place and is formed with opening, and the opening both sides form fixture block at the receiving space medial surface.Thereby butt connector fastens closely cooperating of assurance butt connector and electric connector with fixture block after inserting receiving space fully.Said plurality of conductive terminals runs through diapire and is welded on the external circuit board.Will form above-mentioned fixture block in the injection moulding process, therefore die can only need be provided with on the diapire of insulating body and the corresponding through hole of fixture block from the demoulding of insulating body diapire.In the process of welding conducting terminal, high temperature can get into electric connector inside from through hole like this, thereby causes the electronic component of interior welds to have the risk that melts tin.

Therefore, be necessary the aforementioned electric connector is improved to solve aforementioned disadvantages of the prior art in fact.

[utility model content]

The main purpose of the utility model is to provide a kind of and prevents that high temperature gets into the inner electric connector of electric connector in the welding process.

For reaching above-mentioned purpose; The utility model adopts following technical scheme: a kind of electric connector; In order to be installed on the external circuit board; This electric connector comprises the shielding casing of insulating body, coated insulation body and is welded on the conducting terminal on the external circuit board; Said insulating body comprises receiving space, the diapire relative with the external circuit board and the through hole that runs through diapire and communicate with receiving space, and this through hole has the opening towards the external circuit board, and said shielding casing is provided with the shielding plate that blocks opening.

Further, said insulating body is provided with the antetheca that is positioned at the receiving space front side, and said shielding casing is provided with the front face that covers antetheca, and said shielding plate forms from the downward one extension of front face.

Further, said diapire convexes with feet towards the external circuit board, and this feet is provided with the side surface near through hole, and shielding plate is held in side surface.

Further, said electric connector comprises the terminal module, and said terminal module comprises a sub-circuit board, and said conducting terminal is a conversion terminal, and this conversion terminal one end is welded on the sub-circuit board, and the other end is soldered on the external circuit board.

Further, said terminal module also comprises the butt joint terminal that is soldered on the sub-circuit board, and said butt joint terminal and conversion terminal are positioned at the sub-circuit board both sides.

Further, said terminal module also comprises an insulator, and said insulator comprises room and be positioned at the rear wall of room rear side that said rear wall is being concaved with breach away from room one side; Said sub-circuit board comprises front surface and the back surface relative with front surface, is welded with an electric capacity on the said front surface, and the inserting foot that said electric capacity has is contained in the breach.

Further, be welded with magnetic coil on said second, said magnetic coil further is contained in the room.

Further, said shielding casing comprises the rear surface that covers rear wall, and said rear surface is die-cut in the breach corresponding position to have shell fragment, this shell fragment and a said inserting foot butt.

Further; Said electric connector also comprises dust cap; Said dust cap comprises horizontally extending main part and extends into the blocked block of receiving space; Said insulating body is provided with and is positioned at the receiving space side walls, and sidewall is provided with the groove that vertically extends in the inboard, and blocked block is fastened in the groove.

Further, said dust cap also is provided with elastic arm, and elastic arm supports in side wall inner surfaces.

Compared with prior art; The advantage of the utility model electric connector is: the shielding plate that shielding casing is provided with blocks the opening of through hole; Make high temperature conduct to electric connector inside, prevent that from there is the risk of molten tin in electric connector internal electronic element weld through through hole.

[description of drawings]

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

Fig. 4 is the three-dimensional exploded view of the utility model electric connector other direction;

Fig. 5 is the three-dimensional exploded view of the utility model electric connector terminal module;

Fig. 6 is the three-dimensional exploded view of the utility model electric connector terminal module other direction.

[embodiment]

As depicted in figs. 1 and 2, the utility model electric connector 100 comprises insulating body 1, is contained in the shielding casing 3 of the terminal module 2 of insulating body 1, coated insulation body 1, in order to the light-emitting device 4 of indicating electrical connector 100 operating states and prevent the dust cap 5 that dust etc. gets into.

Like Fig. 3 and shown in Figure 4, insulating body 1 comprises receiving space 11, the antetheca 12 that is positioned at receiving space 11 front sides of accommodating butt connector (not shown), is positioned at receiving space 11 side walls 13 and connects antetheca 12 and sidewall 13 and the diapire 14 relative with the external circuit board (not shown).Receiving space 11 runs through antetheca 12 forward and forms fluting 121, and 121 both sides of slotting are provided with fixture block 122, can fasten with fixture block 122 after butt connector inserts, and prevents that accidental from causing signal interruption.At adjacent fixture block 122 places, insulating body 1 is provided with the host cavity 15 of accommodating light-emitting device 4.Antetheca 12 further convexes with first projection 123 forward, and sidewall 13 is provided with the groove 131 that vertically extends in the inboard.Diapire 14 convexes with reference column 141 downwards better electric connector 100 is installed on the external circuit board.In addition, diapire 14 is provided with the through hole 143 that runs through diapire 14 and communicate with receiving space 11, and said through hole 143 and fixture block 122 are corresponding and be provided with the opening 144 towards the external circuit board.Diapire 14 further is provided with the feet 142 adjacent with through hole 143, and feet 142 is provided with the side surface 145 near through hole 143.After electric connector 100 was installed to the external circuit board, feet 142 can support externally on the circuit board with better location electric connector 100.In addition, insulating body 1 is being provided with container cavity 16 with host side submodule group 2 with antetheca 12 relative rear sides.

Like Fig. 5 and shown in Figure 6, terminal module 2 comprises insulator 21, be installed in sub-circuit board 22 on the insulator 21, be immobilizated in the conversion terminal 23 of insulator 21 and extend into the butt joint terminal 24 of receiving space 11.Insulator 21 is injection molded by plastic material, comprises room 211, is positioned at the lower wall 212 of room 211 downsides and is positioned at the rear wall 213 of room 211 rear sides.Lower wall 214 is provided with some spaced terminal grooves 214 with fixing conversion terminal 23 on longitudinally.Each conversion terminal 23 is roughly L-shaped, comprises horizontally extending holding parts 231, from horizontally extending forward first weld part 232 of holding parts 231 1 ends and second weld part 233 that after the bending of holding parts 231 other ends, extends straight down.Second weld part 233 branch two rows on the butt joint direction are welded on the external circuit board and (can are other conducting terminals also in other embodiments, are not limited to the conversion terminal 23 in this execution mode, as long as be welded on the external circuit board).232 of first weld parts are soldered on the sub-circuit board 22 from back to front.Said rear wall 213 is concaved with breach 215 and outwards convexes with second projection 216 in the side direction away from room 211.Butt joint terminal 24 comprises roughly the kink 241 that is " n " shape, from the contact site 242 of the downward-sloping extension of kink 241 1 ends and from the horizontally extending welding foot 243 of kink 241 other ends, this welding foot 243 is soldered to sub-circuit board 22 from front to back.That is, conversion terminal 23 with dock terminal 24 and be positioned at the both sides of sub-circuit board 22.

Sub-circuit board 22 is perpendicular to butt joint direction setting, comprises front surface 221, relative with front surface 221 back surperficial 222, some first welding holes 223 and second welding hole 224 that run through sub-circuit board 22.

First weld part

232 and 223 welding of first welding hole,

welding foot

243 and 224 welding of second welding hole.Front surface 221 is welded with electric capacity 25, and the grounding leg 251 of this electric capacity 25 walks around sub-circuit board 22 and insulator 21 finally is contained in breach 215.Surface, back 222 is provided with plurality of conducting strips 225, and some magnetic coils 26 are soldered on the conducting strip 225 through the end of a thread (not shown) that has on it.After sub-circuit board 22 was installed on insulator 21, magnetic coil 26 was contained in the room 211.

Like Fig. 3 and shown in Figure 4, shielding casing 3 is formed by sheet metal punching press bending, and this shielding casing 3 comprises the front face 31 that covers insulating body 1 antetheca 12 and covers the rear surface 32 of insulator 21 rear walls 213.Corresponding respectively first projection 123, second projection 216 are provided with that button holds that hole 33, the first projections 123 and button hold that hole 33 cooperates on front face 31 and the rear surface 32, second projection 216 and button hold hole 33 and cooperate and can reach better fixing effect.Front face 31 downward one are extended with shielding plate 311, and these shielding plate 311 bending back correspondences are blocked the opening 144 of insulating body 1 through hole 143.Like this, in the process of welding conversion terminal 23, high temperature can't conduct to electric connector 100 inside through through hole 143, thereby prevents that from there is the risk of molten tin in electric connector 100 internal electronic element welds.Feet 142 can play the role of positioning to shielding plate 311 near through hole 143, and shielding plate 311 supports on the side surface 145 of feet 142 when blocking opening 144, can make shielding plate 311 aligned 144 and hides fully.Rear surface 32 is die-cut at corresponding breach 215 places to have a shell fragment 321, this shell fragment 321 towards inner bending and with grounding leg 251 butts of electric capacity 25, reach the purpose of electric capacity 25 ground connection.In addition, shielding casing 3 also is provided with the elastic portion 34 that is held in insulating body 1 groove 131, so further the retention effect of reinforced insulation body 1 and shielding casing 3.

Dust cap 5 comprises horizontally extending main part 51, extends into the elastic arm 52 of receiving space 11 and be clipped in the blocked block 53 between the elastic arm 52.When dust cap 5 inserted receiving space 11, blocked block 53 was fastened in groove 131 through the guiding of elastic portion 34, meanwhile, supports the inner surface at sidewall 13 after elastic arm 52 strains, prevents dust cap 5 accidental.Like this, under electric connector 100 obsolete situation, can prevent that dust, moisture etc. from getting into electric connector 100 inside, guarantee electric connector 100 butt joint terminals 24 excellent conducting performance through dust cap 5; Under the situation that needs use, can conveniently extract dust cap 5.

The shielding plate 311 that the utility model is provided with through shielding casing 3 blocks the opening 144 of through hole 143, makes high temperature conduct to electric connector 100 inside through through hole 143, prevents that from there is the risk of molten tin in electric connector 100 internal electronic element welds.For example: between first weld part 232 and first welding hole 223, guaranteed the stability of signal transmission.

Claims

1. electric connector; In order to be installed on the external circuit board; This electric connector comprises the shielding casing of insulating body, coated insulation body and is welded on the conducting terminal on the external circuit board; Said insulating body comprises receiving space, the diapire relative with the external circuit board and the through hole that runs through diapire and communicate with receiving space, and this through hole has the opening towards the external circuit board, it is characterized in that: said shielding casing is provided with the shielding plate that blocks opening.

2. electric connector as claimed in claim 1 is characterized in that: said insulating body is provided with the antetheca that is positioned at the receiving space front side, and said shielding casing is provided with the front face that covers antetheca, and said shielding plate forms from the downward one extension of front face.

3. electric connector as claimed in claim 2 is characterized in that: said diapire convexes with feet towards the external circuit board, and this feet is provided with the side surface near through hole, and shielding plate is held in side surface.

4. like each described electric connector in the claim 1 to 3; It is characterized in that: said electric connector comprises the terminal module; Said terminal module comprises a sub-circuit board; Said conducting terminal is a conversion terminal, and this conversion terminal one end is welded on the sub-circuit board, and the other end is soldered on the external circuit board.

5. electric connector as claimed in claim 4 is characterized in that: said terminal module also comprises the butt joint terminal that is soldered on the sub-circuit board, and said butt joint terminal and conversion terminal are positioned at the sub-circuit board both sides.

6. electric connector as claimed in claim 5 is characterized in that: said terminal module also comprises an insulator, and said insulator comprises room and be positioned at the rear wall of room rear side that said rear wall is being concaved with breach away from room one side; Said sub-circuit board comprises front surface and the back surface relative with front surface, is welded with an electric capacity on the said front surface, and the inserting foot that said electric capacity has is contained in the breach.

7. electric connector as claimed in claim 6 is characterized in that: be welded with magnetic coil on said second, said magnetic coil further is contained in the room.

8. electric connector as claimed in claim 6 is characterized in that: said shielding casing comprises the rear surface that covers rear wall, and said rear surface is die-cut in the breach corresponding position to have shell fragment, this shell fragment and a said inserting foot butt.

9. like each described electric connector in the claim 1 to 3; It is characterized in that: said electric connector also comprises dust cap; Said dust cap comprises horizontally extending main part and extends into the blocked block of receiving space; Said insulating body is provided with and is positioned at the receiving space side walls, and sidewall is provided with the groove that vertically extends in the inboard, and blocked block is fastened in the groove.

10. electric connector as claimed in claim 9 is characterized in that: said dust cap also is provided with elastic arm, and elastic arm supports in side wall inner surfaces.