CN101325290B

CN101325290B - Electric connector

Info

Publication number: CN101325290B
Application number: CN2007100232418A
Authority: CN
Inventors: 卢髦
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: 2007-06-11
Filing date: 2007-06-11
Publication date: 2011-03-23
Anticipated expiration: 2027-06-11
Also published as: CN101325290A

Abstract

The invention relates to an electrical connector, which can be used for electrically connecting a chip module to a printed circuit board. The electrical connector comprises a matrix, a plurality of terminal accommodation slots arranged on the matrix, and a plurality of conducting terminals accommodated in a plurality of terminal accommodation slots, wherein the matrix is an injection molding part; the terminal accommodation slots are arrayed along an X direction and a Y direction perpendicular to the X direction; when the matrix is molded by injection, a filled main flow direction is identical with the Y direction; when the matrix is molded by the injection, a filled minor flow direction is identical with the X direction, wherein at least two categories of unequal distances are arranged among the terminal accommodation slots in the X direction, thereby enhancing the intensity of the matrix.

Description

Electric connector

[technical field]

The present invention relates to a kind of electric connector, refer to a kind of electric connector that the chip module is electrically connected to printed circuit board (PCB) especially.

[background technology]

As shown in Figures 1 and 2, a kind of existing electric connector 3, it mainly comprises matrix 31, be contained in plurality of conductive terminals (not shown) in the matrix 31, and the lid 32 that is interlocked of matrix 31 and be contained in matrix 31 and lid 32 between drive unit 33.Lid 32 is used for carries chips module (not shown), and drive unit 33 is used to drive lid 32 and does sliding motion on matrix 31, to realize conducting or disconnecting of chip module and circuit board (not shown) in good time.Matrix 31 comprises in order to the head 311 that drive unit 33 is set and adjacent with head 311 and be provided with the conduction region 312 of plurality of terminals accepting groove 3120.Described terminal containing slot 3120 list (Y direction as shown in the figure) of (directions X as shown in the figure) and longitudinal extension on the row of horizontal expansion becomes arranged, vertically distinguishes identical with horizontal lattice hurdle width.Lid 32 comprises and head 311 corresponding docking sections 321 and and terminal containing slot 3120 corresponding some openings 322.Know by the mould molding principle, depressed part in the product is by the protuberance moulding in the mould, then during injection mo(u)lding, terminal containing slot 3120 in the matrix 31 is corresponding in mould to be some cylinders, the mobile lattice hurdle that forms between the terminal containing slot 3120 in the gap of molten plastic between cylinder, consult schematic diagram shown in Figure 3, Fig. 3 is the schematic diagram of matrix 31 injection mo(u)ldings, during injection moulding, the molten plastic longitudinally bearing of trend on (Y direction) lattice hurdle flows, and part is shunted then, flows to horizontal (directions X) lattice hurdle of both sides, so longitudinal direction becomes the main flow direction that molten plastic is filled, what horizontal direction became that molten plastic fills time flows to, because vertically lattice hurdle width each other is identical, and the pressure at cast gate place is very big when filling, so the flow velocity of main flow direction is very fast when filling, thereby most molten plastic is all taken away by main flow direction, made it flow to time molten plastic of the flow direction and reduce, cause the inferior lattice hurdle that flows to fill full inadequately, matrix 31 undercapacities are easy to generate fracture; Simultaneously, because the molten plastic of main flow direction evenly flows to time flow direction of both sides, mould line (dotted line as shown in the figure) so can produce to close when the molten plastic of the inferior flow direction merges mutually, this closes moulds line at last roughly in the centre position that connects vertical terminal containing slot, moulds line place undercapacity so can cause to close.

Given this, be necessary to provide a kind of improved electric connector in fact, to overcome the defective of above-mentioned electric connector.

[summary of the invention]

Technical problem solved by the invention provides a kind of electric connector that strengthens matrix strength.

For solving the problems of the technologies described above, the invention provides a kind of electric connector, can be used for electrically connecting the chip module to printed circuit board (PCB), it comprises matrix, be located at the plurality of terminals accepting groove on the matrix and be contained in plurality of conductive terminals in the plurality of terminals accepting groove, described matrix is a moulding, described terminal containing slot becomes arranged along directions X and with the vertical Y direction of directions X, main flow direction of filling during described matrix injection mo(u)lding and Y direction are in the same way, time flow direction of filling during the matrix injection mo(u)lding and directions X are in the same way, wherein, between directions X upper terminal accepting groove, be provided with two kinds of unequal spacings at least.

Compare with correlation technique, the present invention has the following advantages: owing to be provided with two kinds of spacings inequality at least between the directions X upper terminal accepting groove, so during injection mo(u)lding, the flow velocity difference of molten plastic on main flow direction, it closes moulds line and will be formed at a deflection spacing bigger side, closes the intensity of moulding line place matrix with enhancing, during injection mo(u)lding simultaneously, because the flow velocity of the side molten plastic that spacing is less is slower, it is fuller that fill on the lattice hurdle on feasible inferior the flow direction.

[description of drawings]

Fig. 1 is a kind of three-dimensional exploded view of existing electric connector.

Fig. 2 is the enlarged drawing of circle II part shown in Figure 1.

Schematic diagram when Fig. 3 is the matrix injection mo(u)lding of electric connector shown in Figure 1.

Fig. 4 is the three-dimensional exploded view of electric connector of the present invention.

Fig. 5 is the enlarged drawing of circle IV part shown in Figure 4.

Schematic diagram when Fig. 6 is the matrix injection mo(u)lding of electric connector shown in Figure 4.

[embodiment]

See also Fig. 4 to shown in Figure 5, the present invention is a kind of electric connector 1, can be in order to electrically connect chip module (not shown) and circuit board (not shown), it comprises: matrix 10, be contained in plurality of conductive terminals (not shown) in the matrix 10, be fastened on the lid 12 on the matrix 10 and be contained in matrix 10 and lid 12 between drive unit 13.

Matrix 10 roughly becomes tabular, and it is provided with in order to head 100 of accommodating drive unit 13 and the conduction region that links to each other with head 100, and this conduction region is provided with plurality of terminals accepting groove 101, is equipped with plurality of conductive terminals (not shown) in this terminal containing slot 101.These terminal containing slots 101 become the arranged setting along as shown in the figure directions Xs and with the vertical Y direction of directions X, in the present embodiment, be provided with two kinds of different spacings of a, b between the terminal containing slot 101 on the directions X, spacing a wherein〉b, and spacing a, b are provided with at interval, the width one that promptly forms lattice hurdle on the Y direction is classified a as, and one classifies b as.Lid 12 is provided with and the docking section 120 of head 100 corresponding matching and the some openings 121 corresponding with conduction region inner terminal accepting groove 101, and lid 12 is provided with some projections 122 in the surface of accepting the chip module, prevent its compressive deformation to accept the chip module.

Consult schematic diagram shown in Figure 6, when matrix 10 injection mo(u)ldings, the plastics of fusion are injected along cast gate, because terminal containing slot 101 is cylinder in mould, so molten plastic is along the Clearance Flow between the cylinder, wherein molten plastic mainly flows along the Y direction and fills, part flows to the directions X of both sides then, so, main flow direction when the Y direction is filling, time flow direction when directions X is filling is owing to have a between the terminal containing slot 101 on the directions X, two kinds of unequal spacings of b, and these two kinds of intervals settings, so when filling, molten plastic on the main flow direction is at a, flow in two kinds of spacings of b, wherein because spacing a b, so the flow velocity of molten plastic on the bigger a of spacing is very fast, simultaneously also because its flow velocity is very fast, so most molten plastic is all taken away by main flow direction, and have little time to flow to time flow direction, so it is less to flow to time solute of the flow direction on this spacing; And molten plastic is on the less b of spacing, and its flow velocity can be relatively slow, has when more the chien shih molten plastic and flows to and time flow to, so it is more to flow to the molten plastic that time flows on this spacing, makes closing of time flowing to mould one side that line is offset to close spacing a.

The present invention is because two kinds of being set to vary in size of spacing between the terminal containing slot 101 of directions X, closes when making its moulding to mould line and be offset to the wherein bigger side of spacing, closes the intensity of moulding the line place with enhancing; Secondly because inferior the flow direction is provided with less spacing between the terminal containing slot 101, utilize thin-walled to slow down the main flow direction flow velocity, make time flow direction fill fuller.

The present invention can reach terminal containing slot 101 by two kinds of methods and be provided with two kinds of unequal spacings on directions X, and the first, under the situation that does not change the conducting terminal number, change spacing between it by the area that changes terminal containing slot; The second, under the situation that does not change the terminal accommodating groove area, directly change the tight situation of the arrangement between the terminals of adjacent accepting groove 101 on the directions X, change spacing between the directions X upper terminal accepting groove 101 with this.The present invention adopts first method.

Terminal containing slot 101 of the present invention also can adopt the non-interval of multiple different spacing to be provided with on the inferior flow direction, for example, with regard to two kinds of spacings of a, b, can adopt two row a, the mode of one row b is arranged, can certainly adopt that alternate manner is non-to be spaced setting, and can adopt two or more intervals or non-ly be spaced setting.

The present invention adopts two kinds of different intervals to arrange, and it only is the preferred embodiments of the invention, and other any improvement conversion of being done on the present embodiment basis also should not break away from technical scheme of the present invention.

Claims

1. electric connector, can be used for electrically connecting the chip module to printed circuit board (PCB), it comprises matrix, be located at the plurality of terminals accepting groove on the matrix and be contained in plurality of conductive terminals in the plurality of terminals accepting groove, described matrix is a moulding, described terminal containing slot becomes arranged along directions X and with the vertical Y direction of directions X, the filling main flow direction of described matrix molten plastic when injection mo(u)lding and Y direction are in the same way, fill time flow direction and directions X in the same way, it is characterized in that: between the terminal containing slot on the directions X, be provided with two kinds of unequal spacings at least.

2. electric connector as claimed in claim 1 is characterized in that: described terminal containing slot is provided with two kinds of unequal spacings in directions X.

3. electric connector as claimed in claim 2 is characterized in that: described two kinds of unequal intervals settings.

4. electric connector as claimed in claim 2 is characterized in that: the non-interval of described two kinds of unequal spacings is provided with.