CN201667403U - Electric connector - Google Patents

Abstract

The utility model provides an electric connector which is used for connecting a memory module to a circuit board. The electric connector comprises a sinking board type lower layer seat body and an upper layer seat body which is arranged above the lower layer seat body, the upper layer seat body and the lower layer seat body are respectively provided with a slot, the upper layer seat body and the lower layer seat body respectively comprise a plurality of conductive terminals, each conductive terminal is provided with a contact arm which convexly extends into each slot and a soldering pin which is connected to the circuit board, the soldering pins of the upper layer seat body and the lower layer seat body are relatively arranged up and down, and the soldering pins are surface-soldered soldering pins, so that the electric connector makes the best of the space and reduces the whole size thereof.

Description

Electric connector

[technical field]

The utility model discloses a kind of electric connector, relates in particular to a kind of electric connector that connects memory module to circuit board.

[background technology]

In the electronic equipments such as existing computer, adopt stack memory module electric connector can insert two memory modules simultaneously usually for satisfying the function needs.Common this kind of electric connector comprises the lower floor's pedestal that is installed on circuit board one surface and is stacked in the upper strata pedestal of lower floor pedestal top, described upper strata pedestal and lower floor's pedestal all be installed on circuit board should the surface on, and include the conducting terminal of some vertical arrangements, described conducting terminal is in order on this surface that is welded in described circuit board, wherein, upper strata pedestal conducting terminal is welded on the outboard circuit plate of described lower floor pedestal conducting terminal, make the conducting terminal of this upper strata pedestal and lower floor's pedestal on this surface of circuit board, form welding region separately respectively, therefore, need take circuit board should more relatively space, surface.In addition, because upper strata pedestal and lower floor's pedestal all are positioned at the top on a surface of circuit board fully, make the top on this surface of circuit board need possess that enough height space are held the upper strata pedestal and lower floor's pedestal piles up the whole height in back, yet, along with the layout closeness of electronic component on the circuit board improves gradually, people are more and more higher to the requirement of the utilance of circuit board space and electric connector compact in size, and above-mentioned electric connector can't satisfy demands of applications and development in future trend.

Therefore, at the problems referred to above, be necessary to propose a kind of new electric connector to address the above problem.

[utility model content]

It is a kind of in order to connect the electric connector of memory module to circuit board, the utilance that it can reduce the overall dimensions of electric connector and improve circuit board space that the technical problem that the utility model solves is to provide.

For achieving the above object, the utility model adopts following technical scheme: a kind of electric connector, be used to connect memory module to circuit board, this electric connector comprises lower floor's pedestal of depositing plate type setting and is positioned at the upper strata pedestal of lower floor pedestal top, described upper and lower layer pedestal is respectively equipped with slot, described upper and lower layer pedestal includes plurality of conductive terminals, described conducting terminal is provided with the welding foot that protrudes into the contact arm in the slot and be connected to circuit board, and the welding foot of described upper strata pedestal and lower floor's pedestal is oppositely arranged and is surface soldered type welding foot up and down.

Compared with prior art, the utility model electric connector piles up setting by lower floor's pedestal depositing plate type setting and with the upper strata pedestal, and the welding foot of upper strata pedestal and lower floor's pedestal is surface soldered type welding foot and is oppositely arranged up and down, so, the space of circuit board is fully used, has also reduced the overall dimensions of electric connector simultaneously.

For achieving the above object, the utility model also can adopt following technical scheme: a kind of electric connector, in order to the connecting circuit plate, this electric connector comprises upper strata pedestal and lower floor's pedestal and several conducting terminals that piles up setting, upper and lower layer pedestal is respectively equipped with slot, each conducting terminal is provided with the contact arm that protrudes in the corresponding slot, described lower floor pedestal is the depositing plate type setting, described conducting terminal is equipped with surface soldered type welding foot, and the surface soldered type welding foot of upper and lower layer pedestal is oppositely arranged up and down and between constitutes the conduit of accommodating of accommodating circuit board.

Compared with prior art, the surface soldered type welding foot of the utility model electric connector by upper and lower layer pedestal is oppositely arranged and between constitutes the conduit of accommodating of accommodating circuit board, the space of circuit board is fully used, simultaneously Also reduced the overall dimensions of electric connector.

[description of drawings]

Fig. 1 is that the utility model electric connector connects the three-dimensional combination figure of memory module to circuit board.

Fig. 2 is that the utility model electric connector is installed on the three-dimensional combination figure on the circuit board.

Fig. 3 is the part three-dimensional exploded view of the utility model electric connector shown in Figure 2.

Fig. 4 is the stereogram of the conducting terminal of the utility model electric connector.

Fig. 5 is the cross section view of Fig. 2 along the A-A line.

[embodiment]

See also Fig. 1, Fig. 2 and shown in Figure 5, the utility model provides a kind of electric connector 100 that connects memory module 200 to circuit board 300.Described circuit board comprises upper surface 301 and lower surface 302.Described electric connector 100 comprises the upper strata pedestal 1 that is welded in upper surface 301 and is welded in lower floor's pedestal 2 of lower surface 302, and upper strata pedestal 1 be positioned at lower floor's pedestal 2 above, both stacked on top are provided with.

See also Fig. 3 to Fig. 5, described upper strata pedestal 1 is installed on the upper surface 301 of circuit board 300 from top to bottom and is positioned on this upper surface 301, and this upper strata pedestal 1 comprises that first body 11 of lengthwise, some first conducting terminals 12, that are immobilizated in first body 11 extend and with the perpendicular fixed arm 13 of first body 11 and be immobilizated in metal fixing 14 on the fixed arm 13 for first body, 11 both ends horizontal.Described first body 11 and two fixed arms, 13 formations one are accommodated the receiving space of memory module 200, first body 11 is provided with first slot 15 that extends along longitudinally in the side towards receiving space, is equipped with the plurality of terminals accepting groove (not label) of accommodating first conducting terminal 12 on the last lower wall surface of this first slot 15.Described two fixed arms 13 extend and are oppositely arranged in order to spacing described memory module 200 from the lengthwise both ends horizontal of first body 11, the outside of fixed arm 13 is provided with the projection 131 that outwards protrudes out and the holddown groove 132 of the described fixture 14 of fixing, the metal spacer 16 of planting on the described projection 131 can strengthen the fixing of fixed arm 12 and circuit board 300 by this spacer 16.Described fixture 14 along continuous straight runs insert in the holddown groove 132 of described fixed arm 12 after by forward direction, and described metal spacer 16 from top to bottom inserts in the described projection 131 and further inserts circuit boards 300 and realize the fixing effects.

Described first conducting terminal 12 comprise by after be assembled into described terminal containing slot (not label) forward go up row's terminal 120 and the bottom-up following row's terminal 121 that is assembled into described terminal containing slot (not label).Described row's terminal 120 and row's terminal 121 structural similarities down gone up, both are equipped with L type base portion 1201,1211, are extended forward and protruded into first slot 15 and the elastic contact arm 1202,1212 that can contact with the memory module 200 that inserts, extend and interfere the holding parts 1203,1213 that is immobilizated in first body 11 in and by extending below the base portion and vertical first, second welding foot 1204,1214 of setting downwards towards the terminal direction of insertion from base portion by base portion one end.Described first, second welding foot 1204,1214 all is arranged at the front side or the rear side of base portion 1201,1211 lower ends, and in being the wrong arrangement of front and back top-cross respectively on the row up and down.Described first, second welding foot 1204,1214 is its end of vertical welding foot and gathers formation pad 1205,1215, when described first conducting terminal 12 is welded in circuit board 300, described first, second welding foot 1204,1214 makes pad 1205,1215 conflict circuit board 300 when welding perpendicular to circuit board 300, and tin cream can be attached to around the pad, promptly the mode by surface soldered is welded in first conducting terminal 12 on the circuit board 300, also is that first, second welding foot 1204,1214 is surface soldered type welding foot.

Please join Fig. 2 to Fig. 5, lower floor's pedestal 2 is immobilizated in the lower surface 302 of circuit board from bottom to top.Described lower floor pedestal 2 and upper strata pedestal 1 structural similarity, some second conducting terminals 22, that it comprises longitudinal second body 21 equally, be immobilizated in second body 21 extend and with the perpendicular fixed arm 23 of second body 21 and be immobilizated in metal fixing 24 on the fixed arm 23 for second body, 21 both ends horizontal.The part of described second body 21 is positioned at the below of lower surface 302, and a part extends to the top of upper surface 301 by an opening 303 that is arranged at circuit board 300, and promptly described lower floor pedestal 2 is immobilizated in circuit board 300 in the mode of heavy plate.Described second body 21 is also accommodated the receiving space of memory module 200 with two fixed arms, 23 formations one, and second body 21 also is equipped with the plurality of terminals accepting groove (not label) of accommodating second conducting terminal 22 in also be provided with second slot 25 that extends along longitudinally on a side of receiving space on the last lower wall surface of this second slot 25.Same, described two fixed arms 23 extend and are oppositely arranged in order to spacing described memory module 200 from the lengthwise both ends horizontal of second body 21, the outside of fixed arm 23 is provided with the projection 231 that outwards protrudes out and the holddown groove 232 of the described fixture 24 of fixing, the metal spacer 26 of planting on the described projection 231 can strengthen the fixing of fixed arm 23 and circuit board 300 by this spacer 26.Described fixture 24 along continuous straight runs insert in the holddown groove 232 of described fixed arm 23 after by forward direction, and described metal spacer 26 from bottom to top inserts in the described projection 231 and further inserts circuit boards 300 and realize the fixing effects.

Described second conducting terminal 22 comprise equally by after assemble the row's of going up terminal 220 of terminal containing slot (not label) as described forward and be assembled into following row's terminal 221 of described terminal containing slot (not label) certainly down.Described upper and lower row's terminal 220,221 structural similarities, both include base portion 2201,2211, by base portion one end extend forward and protrude into second slot 25 and the elastic contact arm 2202,2212 that can contact with the memory module 200 that inserts, from base portion extend towards the terminal direction of insertion and interfere be immobilizated in the holding parts 2203,2213 of second body 21 and extend upward by base portion and on every row, be respectively before and after the wrong arrangement of top-cross be the 3rd, the 4th welding foot 2204,2214 of vertical setting.Similarly, described the 3rd, the 4th welding foot 2204,2214 is vertical welding foot and end and gathers and form pad 2205,2215.When described second conducting terminal 22 is welded in circuit board 300, described the 3rd, the 4th welding foot 2204,2214 makes the lower surface 302 of pad 2205,2215 at when welding conflict circuit board 300 perpendicular to circuit board 300, and tin cream can be attached to around the pad.Promptly the mode by surface soldered is welded in second conducting terminal 22 on the circuit board 300, also is that first, second welding foot 2204,2214 is surface soldered type welding foot.

See also Fig. 5, welding foot 1204,1214 surface soldered of described upper strata pedestal 1 are in the upper surface 301 of circuit board 300, and its welding region is near opening; Welding foot 2204,2214 surface soldered of described lower floor pedestal 2 are in the lower surface 302 of circuit board 300, its welding region also near opening and be positioned at upper surface 301 welding regions under, the terminal welding foot of promptly going up lower base at interval circuit board 300 is up and down and is oppositely arranged, only take the zone of lower surface 302 when making the welding foot 2204,2214 of lower floor's pedestal 2 be welded in circuit board 300 and do not take the zone of upper surface 301, thereby make that going up lower base fully piles up setting up and down, thereby reduce the size of electric connector 100 on circuit board 300 horizontal directions.In addition, lower floor's pedestal 2 parts are positioned at the below of lower surface 302, and part is positioned at opening 303, and making only has fraction to be positioned at the top of upper surface 301, give prominence to the height of upper surfaces 301 to reduce lower floor's pedestal 2, thereby reduce the size of electric connector 100 on circuit board 300 vertical direction.So, the overall dimensions of electric connector 100 is reduced, thereby improves electric connector 100 integral body to circuit board 300 utilization of space.

In addition, described memory module 200 from bottom to top tilts to insert in first, second slot 15,25 of described upper strata pedestal 1 and lower floor's pedestal 2, and contact with first, second conducting terminal 12,22 in this two slot, the contact arm 1202,2202 of the described row's of going up terminal is arranged the insertion oral-lateral of contact arm 1212,2212 more close described first, second slots 15,25 of terminal respectively down, cooperates memory module 200 inserted mode obliquely with this.

The utility model electric connector is mainly by piling up setting with upper strata pedestal and lower floor's pedestal, lower floor's pedestal is that depositing plate type and its surface soldered type welding foot surface soldered are in the lower surface of circuit board, and the surface soldered type welding foot surface soldered of upper strata pedestal relative upper surface directly over the lower surface welding region, the feasible welding foot of going up lower base is oppositely arranged up and down and between constitutes the conduit of accommodating of accommodating circuit board, so, make circuit board be contained in this and accommodate that the space of circuit board is fully used behind the conduit, also reduced the overall dimensions of electric connector simultaneously.In addition, can offer on the welding foot of conducting terminal towards perpendicular to the hole of base portion direction opening, so that tin cream is climbed up welding foot and gone forward side by side in the hand-hole during welding, promptly described vertical welding foot is provided with and can absorbs the hole of scolder when welding, thereby strengthens welding effect.Need to specify down, the defined surface soldered type of the utility model welding foot is meant that the welding foot of conducting terminal is when being welded to circuit board, welding foot contacts with the surface of circuit board and utilizes scolder that welding foot is fixed on the circuit board, and groove or hole are not set on the circuit board.The described welding foot of the utility model embodiment is the vertical welding foot perpendicular to circuit board, in addition, also can be with other surface soldered mode after last lower base is as above stated and piled up, for example adopt the mode of horizontal welding pin, and can be stained with the tin ball on the horizontal welding pin, so, also can realize improving the purpose of circuit board space utilance.

Electric connector

[technical field]

The utility model discloses a kind of electric connector, relates in particular to a kind of electric connector that connects memory module to circuit board.

[background technology]

In the electronic equipments such as existing computer, adopt stack memory module electric connector can insert two memory modules simultaneously usually for satisfying the function needs.Common this kind of electric connector comprises the lower floor's pedestal that is installed on circuit board one surface and is stacked in the upper strata pedestal of lower floor pedestal top, described upper strata pedestal and lower floor's pedestal all be installed on circuit board should the surface on, and include the conducting terminal of some vertical arrangements, described conducting terminal is in order on this surface that is welded in described circuit board, wherein, upper strata pedestal conducting terminal is welded on the outboard circuit plate of described lower floor pedestal conducting terminal, make the conducting terminal of this upper strata pedestal and lower floor's pedestal on this surface of circuit board, form welding region separately respectively, therefore, need take circuit board should more relatively space, surface.In addition, because upper strata pedestal and lower floor's pedestal all are positioned at the top on a surface of circuit board fully, make the top on this surface of circuit board need possess that enough height space are held the upper strata pedestal and lower floor's pedestal piles up the whole height in back, yet, along with the layout closeness of electronic component on the circuit board improves gradually, people are more and more higher to the requirement of the utilance of circuit board space and electric connector compact in size, and above-mentioned electric connector can't satisfy demands of applications and development in future trend.

Therefore, at the problems referred to above, be necessary to propose a kind of new electric connector to address the above problem.

[utility model content]

It is a kind of in order to connect the electric connector of memory module to circuit board, the utilance that it can reduce the overall dimensions of electric connector and improve circuit board space that the technical problem that the utility model solves is to provide.

For achieving the above object, the utility model adopts following technical scheme: a kind of electric connector, be used to connect memory module to circuit board, this electric connector comprises lower floor's pedestal of depositing plate type setting and is positioned at the upper strata pedestal of lower floor pedestal top, described upper and lower layer pedestal is respectively equipped with slot, described upper and lower layer pedestal includes plurality of conductive terminals, described conducting terminal is provided with the welding foot that protrudes into the contact arm in the slot and be connected to circuit board, and the welding foot of described upper strata pedestal and lower floor's pedestal is oppositely arranged and is surface soldered type welding foot up and down.

Compared with prior art, the utility model electric connector piles up setting by lower floor's pedestal depositing plate type setting and with the upper strata pedestal, and the welding foot of upper strata pedestal and lower floor's pedestal is surface soldered type welding foot and is oppositely arranged up and down, so, the space of circuit board is fully used, has also reduced the overall dimensions of electric connector simultaneously.

For achieving the above object, the utility model also can adopt following technical scheme: a kind of electric connector, in order to the connecting circuit plate, this electric connector comprises upper strata pedestal and lower floor's pedestal and several conducting terminals that piles up setting, upper and lower layer pedestal is respectively equipped with slot, each conducting terminal is provided with the contact arm that protrudes in the corresponding slot, described lower floor pedestal is the depositing plate type setting, described conducting terminal is equipped with surface soldered type welding foot, and the surface soldered type welding foot of upper and lower layer pedestal is oppositely arranged up and down and between constitutes the conduit of accommodating of accommodating circuit board.

Compared with prior art, the surface soldered type welding foot of the utility model electric connector by upper and lower layer pedestal is oppositely arranged and between constitutes the conduit of accommodating of accommodating circuit board, the space of circuit board is fully used, has also reduced the overall dimensions of electric connector simultaneously.

[description of drawings]

Fig. 1 is that the utility model electric connector connects the three-dimensional combination figure of memory module to circuit board.

Fig. 2 is that the utility model electric connector is installed on the three-dimensional combination figure on the circuit board.

Fig. 3 is the part three-dimensional exploded view of the utility model electric connector shown in Figure 2.

Fig. 4 is the stereogram of the conducting terminal of the utility model electric connector.

Fig. 5 is the cross section view of Fig. 2 along the A-A line.

[embodiment]

See also Fig. 1, Fig. 2 and shown in Figure 5, the utility model provides a kind of electric connector 100 that connects memory module 200 to circuit board 300.Described circuit board comprises upper surface 301 and lower surface 302.Described electric connector 100 comprises the upper strata pedestal 1 that is welded in upper surface 301 and is welded in lower floor's pedestal 2 of lower surface 302, and upper strata pedestal 1 be positioned at lower floor's pedestal 2 above, both stacked on top are provided with.

See also Fig. 3 to Fig. 5, described upper strata pedestal 1 is installed on the upper surface 301 of circuit board 300 from top to bottom and is positioned on this upper surface 301, and this upper strata pedestal 1 comprises that first body 11 of lengthwise, some first conducting terminals 12, that are immobilizated in first body 11 extend and with the perpendicular fixed arm 13 of first body 11 and be immobilizated in metal fixing 14 on the fixed arm 13 for first body, 11 both ends horizontal.Described first body 11 and two fixed arms, 13 formations one are accommodated the receiving space of memory module 200, first body 11 is provided with first slot 15 that extends along longitudinally in the side towards receiving space, is equipped with the plurality of terminals accepting groove (not label) of accommodating first conducting terminal 12 on the last lower wall surface of this first slot 15.Described two fixed arms 13 extend and are oppositely arranged in order to spacing described memory module 200 from the lengthwise both ends horizontal of first body 11, the outside of fixed arm 13 is provided with the projection 131 that outwards protrudes out and the holddown groove 132 of the described fixture 14 of fixing, the metal spacer 16 of planting on the described projection 131 can strengthen the fixing of fixed arm 12 and circuit board 300 by this spacer 16.Described fixture 14 along continuous straight runs insert in the holddown groove 132 of described fixed arm 12 after by forward direction, and described metal spacer 16 from top to bottom inserts in the described projection 131 and further inserts circuit boards 300 and realize the fixing effects.

Described first conducting terminal 12 comprise by after be assembled into described terminal containing slot (not label) forward go up row's terminal 120 and the bottom-up following row's terminal 121 that is assembled into described terminal containing slot (not label).Described row's terminal 120 and row's terminal 121 structural similarities down gone up, both are equipped with L type base portion 1201,1211, are extended forward and protruded into first slot 15 and the elastic contact arm 1202,1212 that can contact with the memory module 200 that inserts, extend and interfere the holding parts 1203,1213 that is immobilizated in first body 11 in and by extending below the base portion and vertical first, second welding foot 1204,1214 of setting downwards towards the terminal direction of insertion from base portion by base portion one end.Described first, second welding foot 1204,1214 all is arranged at the front side or the rear side of base portion 1201,1211 lower ends, and in being the wrong arrangement of front and back top-cross respectively on the row up and down.Described first, second welding foot 1204,1214 is its end of vertical welding foot and gathers formation pad 1205,1215, when described first conducting terminal 12 is welded in circuit board 300, described first, second welding foot 1204,1214 makes pad 1205,1215 conflict circuit board 300 when welding perpendicular to circuit board 300, and tin cream can be attached to around the pad, promptly the mode by surface soldered is welded in first conducting terminal 12 on the circuit board 300, also is that first, second welding foot 1204,1214 is surface soldered type welding foot.

Please join Fig. 2 to Fig. 5, lower floor's pedestal 2 is immobilizated in the lower surface 302 of circuit board from bottom to top.Described lower floor pedestal 2 and upper strata pedestal 1 structural similarity, some second conducting terminals 22, that it comprises longitudinal second body 21 equally, be immobilizated in second body 21 extend and with the perpendicular fixed arm 23 of second body 21 and be immobilizated in metal fixing 24 on the fixed arm 23 for second body, 21 both ends horizontal.The part of described second body 21 is positioned at the below of lower surface 302, and a part extends to the top of upper surface 301 by an opening 303 that is arranged at circuit board 300, and promptly described lower floor pedestal 2 is immobilizated in circuit board 300 in the mode of heavy plate.Described second body 21 is also accommodated the receiving space of memory module 200 with two fixed arms, 23 formations one, and second body 21 also is equipped with the plurality of terminals accepting groove (not label) of accommodating second conducting terminal 22 in also be provided with second slot 25 that extends along longitudinally on a side of receiving space on the last lower wall surface of this second slot 25.Same, described two fixed arms 23 extend and are oppositely arranged in order to spacing described memory module 200 from the lengthwise both ends horizontal of second body 21, the outside of fixed arm 23 is provided with the projection 231 that outwards protrudes out and the holddown groove 232 of the described fixture 24 of fixing, the metal spacer 26 of planting on the described projection 231 can strengthen the fixing of fixed arm 23 and circuit board 300 by this spacer 26.Described fixture 24 along continuous straight runs insert in the holddown groove 232 of described fixed arm 23 after by forward direction, and described metal spacer 26 from bottom to top inserts in the described projection 231 and further inserts circuit boards 300 and realize the fixing effects.

Described second conducting terminal 22 comprise equally by after assemble the row's of going up terminal 220 of terminal containing slot (not label) as described forward and be assembled into following row's terminal 221 of described terminal containing slot (not label) certainly down.Described upper and lower row's terminal 220,221 structural similarities, both include base portion 2201,2211, by base portion one end extend forward and protrude into second slot 25 and the elastic contact arm 2202,2212 that can contact with the memory module 200 that inserts, from base portion extend towards the terminal direction of insertion and interfere be immobilizated in the holding parts 2203,2213 of second body 21 and extend upward by base portion and on every row, be respectively before and after the wrong arrangement of top-cross be the 3rd, the 4th welding foot 2204,2214 of vertical setting.Similarly, described the 3rd, the 4th welding foot 2204,2214 is vertical welding foot and end and gathers and form pad 2205,2215.When described second conducting terminal 22 is welded in circuit board 300, described the 3rd, the 4th welding foot 2204,2214 makes the lower surface 302 of pad 2205,2215 at when welding conflict circuit board 300 perpendicular to circuit board 300, and tin cream can be attached to around the pad.Promptly the mode by surface soldered is welded in second conducting terminal 22 on the circuit board 300, also is that first, second welding foot 2204,2214 is surface soldered type welding foot.

See also Fig. 5, welding foot 1204,1214 surface soldered of described upper strata pedestal 1 are in the upper surface 301 of circuit board 300, and its welding region is near opening; Welding foot 2204,2214 surface soldered of described lower floor pedestal 2 are in the lower surface 302 of circuit board 300, its welding region also near opening and be positioned at upper surface 301 welding regions under, the terminal welding foot of promptly going up lower base at interval circuit board 300 is up and down and is oppositely arranged, only take the zone of lower surface 302 when making the welding foot 2204,2214 of lower floor's pedestal 2 be welded in circuit board 300 and do not take the zone of upper surface 301, thereby make that going up lower base fully piles up setting up and down, thereby reduce the size of electric connector 100 on circuit board 300 horizontal directions.In addition, lower floor's pedestal 2 parts are positioned at the below of lower surface 302, and part is positioned at opening 303, and making only has fraction to be positioned at the top of upper surface 301, give prominence to the height of upper surfaces 301 to reduce lower floor's pedestal 2, thereby reduce the size of electric connector 100 on circuit board 300 vertical direction.So, the overall dimensions of electric connector 100 is reduced, thereby improves electric connector 100 integral body to circuit board 300 utilization of space.

In addition, described memory module 200 from bottom to top tilts to insert in first, second slot 15,25 of described upper strata pedestal 1 and lower floor's pedestal 2, and contact with first, second conducting terminal 12,22 in this two slot, the contact arm 1202,2202 of the described row's of going up terminal is arranged the insertion oral-lateral of contact arm 1212,2212 more close described first, second slots 15,25 of terminal respectively down, cooperates memory module 200 inserted mode obliquely with this.

The utility model electric connector is mainly by piling up setting with upper strata pedestal and lower floor's pedestal, lower floor's pedestal is that depositing plate type and its surface soldered type welding foot surface soldered are in the lower surface of circuit board, and the surface soldered type welding foot surface soldered of upper strata pedestal relative upper surface directly over the lower surface welding region, the feasible welding foot of going up lower base is oppositely arranged up and down and between constitutes the conduit of accommodating of accommodating circuit board, so, make circuit board be contained in this and accommodate that the space of circuit board is fully used behind the conduit, also reduced the overall dimensions of electric connector simultaneously.In addition, can offer on the welding foot of conducting terminal towards perpendicular to the hole of base portion direction opening, so that tin cream is climbed up welding foot and gone forward side by side in the hand-hole during welding, promptly described vertical welding foot is provided with and can absorbs the hole of scolder when welding, thereby strengthens welding effect.Need to specify down, the defined surface soldered type of the utility model welding foot is meant that the welding foot of conducting terminal is when being welded to circuit board, welding foot contacts with the surface of circuit board and utilizes scolder that welding foot is fixed on the circuit board, and groove or hole are not set on the circuit board.The described welding foot of the utility model embodiment is the vertical welding foot perpendicular to circuit board, in addition, also can be with other surface soldered mode after last lower base is as above stated and piled up, for example adopt the mode of horizontal welding pin, and can be stained with the tin ball on the horizontal welding pin, so, also can realize improving the purpose of circuit board space utilance.

Claims (10)

1. electric connector, be used to connect memory module to circuit board, this electric connector comprises lower floor's pedestal of depositing plate type setting and is positioned at the upper strata pedestal of lower floor pedestal top, described upper and lower layer pedestal is respectively equipped with slot, described upper and lower layer pedestal includes plurality of conductive terminals, described conducting terminal is provided with the welding foot that protrudes into the contact arm in the slot and be connected to circuit board, and it is characterized in that: the welding foot of described upper strata pedestal and lower floor's pedestal is oppositely arranged and is surface soldered type welding foot up and down.

2. electric connector as claimed in claim 1, it is characterized in that: described electric connector is welded on the circuit board, described circuit board is provided with upper surface and lower surface, the welding foot of described upper strata pedestal is welded in the upper surface of circuit board, and the welding foot of described lower floor pedestal is welded in the lower surface of circuit board.

3. electric connector as claimed in claim 1 or 2 is characterized in that: the welding foot of described upper strata pedestal conducting terminal be positioned at described lower floor pedestal conducting terminal welding foot directly over.

4. electric connector as claimed in claim 3 is characterized in that: the welding foot of at least one conducting terminal is vertical welding foot in described upper strata pedestal and the lower floor's pedestal.

5. electric connector as claimed in claim 4 is characterized in that: the end of described vertical welding foot is gathered the formation pad.

6. electric connector as claimed in claim 5 is characterized in that: described vertical welding foot is provided with the hole that can absorb scolder when welding.

7. electric connector as claimed in claim 3 is characterized in that: the welding foot of at least one conducting terminal is the horizontal welding pin in described upper strata pedestal and the lower floor's pedestal.

8. electric connector as claimed in claim 7 is characterized in that: be stained with the tin ball on the described horizontal welding pin.

9. electric connector as claimed in claim 6 is characterized in that: described upper and lower layer pedestal is equipped with the slot of vertical setting, and described memory module from bottom to top tilts to insert in the slot of described upper strata pedestal and lower floor's pedestal.

10. electric connector, in order to the connecting circuit plate, this electric connector comprises upper strata pedestal and lower floor's pedestal and several conducting terminals that piles up setting, upper and lower layer pedestal is respectively equipped with slot, each conducting terminal is provided with the contact arm that protrudes in the corresponding slot, described lower floor pedestal is the depositing plate type setting, it is characterized in that: described conducting terminal is equipped with surface soldered type welding foot, and the surface soldered type welding foot of upper and lower layer pedestal is oppositely arranged up and down and between constitutes the conduit of accommodating of accommodating circuit board.

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