CN218525769U - Conductive terminal and electric connector with same - Google Patents

Abstract

The utility model discloses a conductive terminal, including basal portion and elastic arm, the elastic arm includes the contact arm, first arm and second arm, first arm and contact arm are connected in first connection position, the second arm is connected in second connection position with the contact arm, first connection position and second connection position along the at least part dislocation set of left right direction, the contact arm has relative first lateral margin and second lateral margin, first arm has first outside, the second arm has the second outside, second lateral margin and second outside are located one side of wherein of elastic arm, the inside sunken groove of stepping down that forms of second lateral margin relative second outside, the utility model also discloses an electric connector, including insulator and two adjacent above-mentioned conductive terminals in front and back, dislocation around two rows of conductive terminals, the groove of stepping down of back row conductive terminal is used for stepping down front row conductive terminal, two rows around spacing between the conductive terminal is less, and conductive terminal is comparatively concentrated, accords with the miniaturized, intensive development trend of current electric connector arrangement.

Description

Conductive terminal and electric connector with same

[ technical field ] A

The present invention relates to a conductive terminal and an electrical connector having the same, and more particularly, to a conductive terminal and an electrical connector having the same for electrically connecting an electronic device and a circuit board.

[ background ] A method for producing a semiconductor device

A conventional electrical connector includes an insulative housing and a plurality of conductive terminals disposed on the insulative housing, wherein the plurality of conductive terminals are disposed in a plurality of rows along a front-to-back direction, and the conductive terminals in two adjacent rows are aligned in front-to-back direction. The conductive terminal comprises a base part and an elastic arm formed by extending upwards from the base part, wherein the elastic arm comprises a contact arm, a first arm and a second arm which are connected with the contact arm, the first arm and the second arm are arranged at intervals left and right, a through groove is formed between the first arm and the second arm, the first arm and the second arm are symmetrically arranged left and right relative to the through groove, the contact arm is provided with a contact part which protrudes out of the insulating body and is contacted with the electronic element, the contact part is positioned in front of the base part, the first arm and the contact arm are connected with a first connection position, the second arm and the contact arm are connected with a second connection position, and the first connection position and the second connection position are the same as the contact part in the extending direction of the elastic arm.

The elastic arm can elastically deform under the compression of the electronic element, so that the contact part moves downwards, the distance between the front and rear adjacent rows of conductive terminals needs to be large enough, and the front and rear adjacent rows of conductive terminals can not be in contact to form a short circuit under the condition that the elastic arm is compressed by the electronic element.

Therefore, in view of the above problems, a new electrical connector needs to be designed to solve the above drawbacks.

[ Utility model ] A method for manufacturing a semiconductor device

An object of the present invention is to provide a conductive terminal and an electrical connector having the same, the elastic arm of the conductive terminal is provided with a step down slot, and the elastic arm of the rear row conductive terminal is provided with a step down slot and a front row conductive terminal, so that the electrical connector can adapt to the intensive development trend.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an electrical connector, comprising: an insulating body; two rows of conductive terminals adjacent in the front and back are arranged on the insulating body, the two rows of conductive terminals adjacent in the front and back are arranged in a staggered manner in the front and back, and the conductive terminals are provided with: a base portion; an elastic arm formed by extending from the upper end of the base part, the elastic arm comprising a contact arm, a first arm and a second arm connected with the contact arm, the first arm and the second arm being arranged at a left-right interval and a through groove being formed between the first arm and the second arm, the contact arm having a contact part and a first lateral edge and a second lateral edge oppositely arranged in the left-right direction, the contact part being located in front of the base part and upwardly exposed out of the insulating body, the first arm and the second arm being respectively located between the base part and the contact part in the extending direction of the elastic arm, the first arm and the contact arm being connected to a first connection part, the second arm with the contact arm is connected in a second and is connected the position, first connection position is in the extending direction of elastic arm is gone up comparatively the second is connected the position and is close to the contact site sets up, first arm has dorsad a first outside that leads to the groove, the second arm has dorsad a second outside that leads to the groove, first lateral margin with first outside is located wherein one side of elastic arm, the second lateral margin with the second outside is located the opposite side of elastic arm, first lateral margin is relative first outside is inside sunken, the second lateral margin is relative the second outside is inside sunken and form a groove of stepping down, the groove of stepping down is used for stepping down one of them conductive terminal of leading bank.

Furthermore, the electrical connector includes a plurality of rows of the conductive terminals distributed along the front-back direction, the insulating body includes a first region and a second region that are adjacently arranged in the front-back direction, the first region is distributed with a plurality of rows of the conductive terminals aligned along the front-back direction, the conductive terminals located in the first region are defined as first terminals, the second region is distributed with a plurality of rows of the conductive terminals aligned along the front-back direction, the conductive terminals located in the second region are defined as second terminals, the first terminals and the second terminals of the two rows adjacent to the first region and the second region are staggered in the front-back direction, and in the front-back direction, a distance between the first terminals and the second terminals adjacent in the front-back direction is smaller than a distance between the first terminals of the two rows adjacent in the front-back direction, and is smaller than a distance between the second terminals of the two rows adjacent in the front-back direction.

Further, the first connection site has a first distal end point far away from the contact portion in the extending direction of the contact arm and a first proximal end point close to the contact portion, the second connection site has a second distal end point far away from the contact portion in the extending direction of the contact arm and a second proximal end point close to the contact portion, the first proximal end point is disposed closer to the contact portion than the second proximal end point in the extending direction of the contact arm, and the first distal end point is disposed closer to the contact portion than the second distal end point in the extending direction of the contact arm.

Further, the through slot extends between the first arm and the contact arm.

Further, in the left-right direction, a distance between the first side edge and the first outer edge is smaller than a distance between the second side edge and the second outer edge.

The conductive terminal further comprises a welding part arranged below the base part and a connecting arm connected with the base part and the welding part, the welding part is provided with a first central line, the connecting arm is provided with a second central line, the contact arm is provided with a third central line, the first central line and the second central line are respectively positioned between the first outer edge and the second outer edge when viewed from back to front, and the third central line is respectively deviated from the first central line and the second central line in the left-right direction.

Further, the insulating body includes two rows of terminal grooves adjacent to each other in the front-rear direction, the terminal grooves accommodate the conductive terminals, the base portion has a first side and a second side opposite to each other in the left-right direction, and the conductive terminal further includes: a welding part located below the base part; a connecting arm connecting the base and the welding part; a turning part formed by bending and extending from the first side edge; an opening extending over the base portion and the turn portion, the opening extending beyond the first side edge and toward the second side edge; the first fixing part is arranged corresponding to the opening position; the second fixing part is arranged on the second side edge, and the first fixing part and the second fixing part are used for positioning the conductive terminal in the terminal groove.

Further, the opening extends on the base portion at least to a middle portion of the base portion in the left-right direction.

Further, the opening includes a first opening, a second opening and a third opening, first opening is located the top of second opening, the third opening communicates from top to bottom first opening with the second opening, first opening is followed the turn extends to the second side, the second opening is followed the turn extends beyond the second side and to first side extends, first fixed part is located first opening with between the second opening.

Further, the first fixing portion is of a cantilever structure, and the first fixing portion is elastically abutted to a groove wall of the terminal groove in the left-right direction.

Further, the opening includes a first opening, a second opening and a third opening, the first opening is located above the second opening, the third opening communicates the first opening with the second opening from top to bottom, the first fixing portion includes two fixing protrusions, one of the fixing protrusions is located above a top edge of the second opening, and the other fixing protrusion is located below the top edge of the second opening in the up-down direction.

Furthermore, the opening comprises a first opening, a second opening and a third opening, the first opening is located above the second opening, the third opening is communicated with the first opening and the second opening from top to bottom, and at least part of the second fixing portion is located above the top edge of the second opening.

Further, the connecting arm is relative first side is to being close to the skew of second side, conductive terminal is equipped with a fluting that runs through in the front and back direction, the fluting is in the connecting arm extends and upwards extends to the basal portion, then along left right direction orientation on the basal portion first side extends, the part that the fluting extends in left right direction with the opening is at least partly corresponding setting from top to bottom.

Further, conductive terminal is equipped with a fluting that runs through on the front and back direction, the fluting is in the basal portion with extend on the linking arm, turn over portion has and forms a first support arm and a second support arm of both sides about the opening, first support arm connect in the upper portion on second side, the second support arm connect in the lower part on second side, the second support arm is connected the position of basal portion corresponds on the upper and lower direction the fluting sets up.

Compared with the prior art, the utility model discloses following beneficial effect has:

two rows of conducting terminal front and back dislocation set, first position of connection is in the extending direction of elastic arm is gone up the second position of connection is close to the contact site sets up, first lateral margin is relative first outside is inwards sunken, the second lateral margin is relative the second outside is inwards sunken and forms a groove of stepping down, the groove of stepping down is used for stepping down one of them of front row conducting terminal, so, two rows of front and back the distance between the conducting terminal is less, and conducting terminal arranges comparatively concentratedly, and the conducting terminal that same insulator can hold is more, accords with the development trend of current electric connector miniaturization, densification.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an electrically conductive terminal, comprising: a base portion; the elastic arm is formed by extending from the upper end of the base part and comprises a contact arm, a first arm and a second arm, the first arm and the second arm are connected with the contact arm, the contact arm is provided with a contact part, a first lateral edge and a second lateral edge which are oppositely arranged in the left-right direction, the contact part is positioned in front of the base part, the first arm and the second arm are respectively positioned between the base part and the contact part in the extending direction of the elastic arm, the first arm and the contact arm are connected with a first connecting position, the second arm and the contact arm are connected with a second connecting position, the first connecting position and the second connecting position are at least partially arranged in a staggered mode in the left-right direction, a through groove is formed between the first arm and the second arm, the first arm is provided with a first outer edge which faces away from the through groove, the second arm is provided with a second outer edge which faces away from the through groove, the first lateral edge and the first outer edge are positioned on one side of the elastic arm, the second lateral edge and the second outer edge are positioned on the opposite side of the elastic arm, and the distance between the first lateral edge and the second outer edge is smaller than the distance between the second outer edge in the left-right direction.

Further, the first connection site has a first distal end point far away from the contact portion in the extending direction of the contact arm and a first proximal end point close to the contact portion, the second connection site has a second distal end point far away from the contact portion in the extending direction of the contact arm and a second proximal end point close to the contact portion, the first proximal end point is disposed closer to the contact portion than the second proximal end point in the extending direction of the contact arm, and the first distal end point is disposed closer to the contact portion than the second distal end point in the extending direction of the contact arm.

Further, the through slot extends between the first arm and the contact arm.

Further, in the left-right direction, a distance between the first side edge and the first outer edge is smaller than a distance between the second side edge and the second outer edge.

The conductive terminal further includes a soldering portion disposed below the base portion and a connecting arm connecting the base portion and the soldering portion, the soldering portion has a first center line, the connecting arm has a second center line, the connecting arm has a third center line, the first center line and the second center line are respectively located between the first outer edge and the second outer edge when viewed from back to front, and the third center line respectively deviates from the first center line and the second center line in the left-right direction and is disposed closer to the first outer edge than the first center line and the second center line.

Compared with the prior art, the utility model discloses following beneficial effect has:

through adjacent two rows dislocation set around the conductive terminal, first connection position is in the extending direction of elastic arm is gone up comparatively the second connection position is close to the contact site sets up, first lateral margin is relative first outside is inside sunken, the second lateral margin is relative the second outside is inside sunken and form a groove of stepping down, the groove of stepping down is used for stepping down one of them of front row conductive terminal, so, two rows back and forth the interval between the conductive terminal is less, and conductive terminal arranges comparatively concentratedly, accords with the development trend that current electric connector is miniaturized, intensive.

[ description of the drawings ]

Fig. 1 is a perspective view of the electric connector, the electronic component and the circuit board of the present invention;

fig. 2 is a perspective view of the electrical connector of fig. 1;

FIG. 3 is a top view of the electrical connector of FIG. 2;

FIG. 4 is a schematic view of the insulating body shown in FIG. 3;

FIG. 5 is a partial enlarged view of A in FIG. 3

FIG. 6 is a partial cross-sectional view of FIG. 3 taken along line B-B;

FIG. 7 is a partial cross-sectional view of FIG. 3 taken along line C-C;

fig. 8 is a perspective view of the conductive terminal of fig. 1;

fig. 9 is a rear-to-front view of the conductive terminals of fig. 8;

fig. 10 is a perspective view of the conductive terminal of fig. 8 from another perspective.

Detailed description of the embodiments reference is made to the accompanying drawings in which:

[ detailed description ] A

For better understanding of the objects, structures, features, and functions of the present invention, reference should now be made to the drawings and detailed description of the preferred embodiment of the invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention; in the description of the present invention, "a plurality" means two or more unless otherwise specified. For ease of understanding, the front-back direction is designated by X, the left-right direction by Y, and the up-down direction by Z.

As shown in fig. 1 to 10, in order to provide an electrical connector 100 according to the present invention, the electrical connector 100 is used to electrically connect an electronic component 200 to a circuit board 300, in the present embodiment, the electronic component 200 is a chip module, and in other embodiments, the electronic component 200 may be other components.

As shown in fig. 3 and fig. 4, the electrical connector 100 includes an insulating body 1 and a plurality of conductive terminals 2, the insulating body 1 has a plurality of terminal slots 10, the plurality of terminal slots 10 are arranged in multiple rows along a front-back direction, the insulating body 1 includes a first region R1 and a second region R2 that are adjacently arranged front and back, the first region R1 is provided with at least one row of terminal slots 10, the second region R2 is provided with at least one row of terminal slots 10, in this embodiment, the first region R1 is provided with multiple rows of terminal slots 10 that are aligned front and back, the second region R2 is provided with multiple rows of terminal slots 10 that are aligned front and back, and the two rows of terminal slots 10 that are adjacent to the first region R1 and the second region R2 are arranged in a staggered front and back manner. In other embodiments, two rows of the terminal slots 10 adjacent to each other in the front-back direction are arranged in a staggered manner in the front-back direction.

As shown in fig. 4 and 7, the terminal slot 10 penetrates the insulating body 1 vertically, and the terminal slot 10 has a front slot wall 10a, a rear slot wall 10b, a left slot wall 10c, and a right slot wall 10d, which are connected to each other to form the terminal slot 10. The terminal groove 10 is provided with a stop portion 11, in this embodiment, the stop portion 11 is formed on the left groove wall 10c and is an inclined surface arranged obliquely upward.

As shown in fig. 3 and 5, the plurality of conductive terminals 2 are accommodated in the plurality of terminal grooves 10 in a one-to-one correspondence, the conductive terminal 2 accommodated in the terminal groove 10 of the first region R1 is defined as a first terminal 2a, the conductive terminal 2 accommodated in the terminal groove 10 of the second region R2 is defined as a second terminal 2b, the first terminal 2a and the second terminal 2b in two corresponding front and rear adjacent rows are staggered front to back, the first terminals 2a in two front and rear adjacent rows are aligned front to back, and the second terminals 2b in two front and rear adjacent rows are aligned front to back. In other embodiments, any two rows of the conductive terminals 2 adjacent to each other in front and back are arranged in a staggered manner in front and back.

As shown in fig. 8 and 9, the conductive terminal 2 is formed by stamping a metal plate, the conductive terminal 2 has a base 20, and the base 20 has a first side 20a and a second side 20b opposite to each other in the left-right direction. In the present embodiment, the base portion 20 has a flat plate shape.

As shown in fig. 8, the conductive terminal 2 further has an elastic arm 21 extending from the upper end of the base portion 20, the elastic arm 21 includes a contact arm 211, the contact arm 211 has a contact portion 2111 and a first side edge 2112 and a second side edge 2113 oppositely disposed in the left-right direction, the contact portion 2111 is located in front of the base portion 20 and upwardly exposed out of the insulating body 1 for contacting with the electronic component 200 to form an electrical connection.

As shown in fig. 8 and 9, the elastic arm 21 further includes a first arm 212 and a second arm 213 connected to the contact arm 211, and a through slot 214 formed between the first arm 212 and the second arm 213, the first arm 212 and the second arm 213 are respectively located between the base 20 and the contact portion 2111 in the extending direction of the elastic arm 21, the first arm 212 and the second arm 213 are arranged at a left-right interval, the first arm 212 has a first outer edge 2121 facing away from the through slot 214, the second arm 213 has a second outer edge 2131 facing away from the through slot 214, the first side edge 2112 and the first outer edge 2121 are located on one side of the elastic arm 21, the second side edge 2113 and the second outer edge 2131 are located on the other side of the elastic arm 21, the first side edge 2112 is recessed toward the first outer edge 2121, the second side edge 2113 is recessed toward the second outer edge 2131, a distance between the second side edge 2112 and the second outer edge 2131 is smaller than a distance S2, and a distance S2 is defined as a distance S2131 from the second side of the inner edge. In this embodiment, the receding groove 217 is disposed on the right side of the conductive terminal 2, and in other embodiments, the receding groove 217 may also be disposed on the left side of the conductive terminal 2.

As shown in fig. 3 and 5, for the two rows of the conductive terminals 2 correspondingly contained in the two rows of the terminal slots 10 arranged in a front-back staggered manner, that is, for the two rows of the conductive terminals 2 arranged in a front-back staggered manner, the yielding slots 217 of the conductive terminals 2 in the back row are used for yielding one of the conductive terminals 2 in the front row. In the front-rear direction, the distance between the first terminals 2a and the second terminals 2b that are adjacent in the front-rear direction and are arranged in a staggered manner is smaller than the distance between the first terminals 2a in two rows adjacent in the front-rear direction and smaller than the distance between the second terminals 2b in two rows adjacent in the front-rear direction.

As shown in fig. 9, the resilient arm 21 further includes a first connection location 215 and a second connection location 216, the first arm 212 connects to the contact arm 211 at the first connection location 215, the second arm 213 connects to the contact arm 211 at the second connection location 216, the first connection location 215 has a first near end point P1 near the contact portion 2111 in the extending direction of the contact arm 211 and a first far end point P2 far from the contact portion 2111, the second connection location 216 has a second near end point P3 near the contact portion 2111 in the extending direction of the contact arm 211 and a second far end point P4 far from the contact portion 2111, the first near end point P1 is disposed closer to the contact portion 2111 than the second near end point P3 in the extending direction of the contact arm 211, and the first far end point P2 is disposed closer to the contact portion 2111 than the second far end point P4 in the extending direction of the contact arm 211, so that the through slot 214 extends to between the first connection location 215 and the contact arm 211.

As shown in fig. 1 and 9, the conductive terminal 2 further has a soldering portion 22 and a connecting arm 23 connecting the base portion 20 and the soldering portion 22, the soldering portion 22 is located below the base portion 20 and is used for being soldered and fixed to the circuit board 300 by a solder 4, the connecting arm 23 is offset to the second side 20b relative to the first side 20a, and the connecting arm 23 is not in a flat plate shape when viewed from the left and right directions, has a bent structure, and is bent relative to the base portion 20 in the front and rear directions. The welding portion 22 has a first center line L1, the connecting arm 23 has a second center line L2, the contacting arm 211 has a third center line L3, when viewed from the back to the front, the first center line L1 and the second center line L2 are respectively located between the first outer edge 2121 and the second outer edge 2131, the first center line L1 is overlapped with the second center line L2, and the third center line L3 is respectively offset from the first center line L1 and the second center line L2 in the left-right direction and is located closer to the first outer edge 2121 than the first center line L1 and the second center line L2.

As shown in fig. 8, the conductive terminal 2 has a turning portion 24 extending from the second side 20b and bent with respect to the base 20. In this embodiment, the turning part 24 is formed by bending and extending directly from the second side 20b of the base part 20. In other embodiments, the elastic arm 21 may also be formed to extend upward from the turning part 24.

As shown in fig. 8, the conductive terminal 2 further has an opening 25 extending on the base 20 and the turning portion 24, and a first fixing portion 26 disposed at a position corresponding to the opening 25, that is, the conductive terminal 2 is spread on the same plane, the first fixing portion 26 is correspondingly disposed in the opening 25, and a portion of the metal plate material forming the opening 25 is formed by press-forming to form the first fixing portion 26.

As shown in fig. 8 and 9, the opening 25 extends beyond the second side edge 20b and toward the first side edge 20a, and the opening 25 extends at least to the middle of the base 20 in the left-right direction on the base 20, and in the present embodiment, the opening 25 extends beyond the middle of the base 20 in the left-right direction on the base 20. The opening 25 includes a first opening 251, a second opening 252 and a third opening 253, the first opening 251 is located above the second opening 252, the third opening 253 is connected to the first opening 251 and the second opening 252 up and down, the first opening 251 extends from the turning part 24 at least to the second side 20b and exceeds the second side 20b by a small portion, and the second opening 252 extends from the turning part 24 beyond the second side 20b and extends to the first side 20a and exceeds the middle part of the base part 20 in the left-right direction.

As shown in fig. 8, the turning part 24 has a first arm 241 and a second arm 242, the first arm 241 and the second arm 242 are formed on the upper and lower sides of the opening 25, that is, the first arm 241 and the second arm 242 are formed on the turning part 24 due to the opening 25, the first arm 241 is connected to the upper part of the second side edge 20b, and the second arm 242 is connected to the lower part of the second side edge 20b.

As shown in fig. 10, the turning part 24 has an extending part 244, a connecting part 243 and a through hole 245, the extending part 244 is spaced apart from the base part 20 in the front-back direction and is shaped like a flat plate, the connecting part 243 connects the base part 20 and the extending part 244, the through hole 245 extends on the extending part 244 and the connecting part 243, and the through hole 245 is spaced apart from the opening 25 and is not communicated with each other.

As shown in fig. 7 and 8, the first fixing portion 26 is located between the first opening 251 and the second opening 252, the first fixing portion 26 is in a cantilever structure and elastically abuts against a groove wall of the terminal groove 10 in the left-right direction, and the first fixing portion 26 includes two fixing protrusions 261, one of the fixing protrusions 261 is located above a top edge of the second opening 252, and the other fixing protrusion 261 is located below a top edge of the second opening 252 in the up-down direction.

As shown in fig. 7 and 8, the conductive terminal 2 further has a second fixing portion 27, the second fixing portion 27 is disposed on the first side 20a, the second fixing portion 27 is at least partially located above the top edge of the second opening 252, and the first fixing portion 26 and the second fixing portion 27 are used for positioning the conductive terminal 2 in the corresponding terminal slot 10.

As shown in fig. 7, the conductive terminal 2 further has a position-limiting portion 28 disposed on the first side 20a, the position-limiting portion 28 is disposed below the second fixing portion 27, and the position-limiting portion 28 is located above the stopping portion 11 to prevent the conductive terminal 2 from moving downward.

As shown in fig. 8 and 9, the conductive terminal 2 further has a guiding portion 29 and a connecting portion 30, the guiding portion 29 is formed by extending downward from the lower edge of the connecting portion 243 and toward the first side 20a in the left-right direction to guide the conductive terminal 2 to be loaded into the corresponding terminal slot 10 from top to bottom, the connecting portion 30 is disposed on the first side 20a, and the connecting portion 30 extends in the up-down direction.

As shown in fig. 8 and 9, the conductive terminal 2 further has a slot 31 penetrating in the front-rear direction, the slot 31 extends in the connecting arm 23 and extends upward to the base 20, and then extends in the left-right direction on the base 20 toward the first side 20a, the portion of the slot 31 extending in the left-right direction and the opening 25 are at least partially disposed in an up-down corresponding manner, the conductive terminal 2 thus forms two resilient bending arms S on opposite sides of the slot 31, the position where the second arm 242 is connected to the base 20 is disposed in the up-down corresponding manner to the slot 31, in this embodiment, the second arm 242 is connected to one of the resilient bending arms S adjacent to the second side 20b, and the position-limiting portion 28 is disposed in the left-right direction and corresponds to the slot 31.

To sum up, the utility model discloses following beneficial effect has:

(1) The two rows of the conductive terminals 2 are arranged in a staggered manner from front to back, the first connecting position 215 is closer to the contact portion 2111 than the second connecting position 216 in the extending direction of the elastic arm 21, the first side edge 2112 is recessed inward relative to the first outer edge 2121, the second side edge 2113 is recessed inward relative to the second outer edge 2131 to form a yielding groove 217, and the yielding groove 217 is used for yielding one of the conductive terminals 2 in the front row, so that the distance between the conductive terminals 2 in the front row and the rear row is smaller, the conductive terminals 2 are arranged in a concentrated manner, the same insulating body 1 can accommodate more conductive terminals 2, and the development trend of miniaturization and densification of the current electric connector is met.

(2) The first terminals 2a and the second terminals 2b in the two rows adjacent to the first region R1 and the second region R2 are arranged in a front-back staggered manner, in the front-back direction, the distance between the first terminals 2a and the second terminals 2b in the front-back adjacent row is smaller than the distance between the first terminals 2a in the two rows adjacent in the front-back direction and smaller than the distance between the second terminals 2b in the two rows adjacent in the front-back direction, the distance between the first terminals 2a and the second terminals 2b in the front-back adjacent row is smaller, and the number of conductive terminals 2 that can be accommodated by the insulator 1 is larger, so that the space utilization rate of the insulator 1 is improved.

(3) The first near end point P1 is in the extending direction of the contact arm 211 is closer to the contact portion 2111 than the second near end point P3 is, the first far end point P2 is in the extending direction of the contact arm 211 is closer to the contact portion 211 than the second far end point P4 is, so that the length of the yielding groove 217 in the extending direction of the elastic arm 21 is longer, a larger yielding space can be provided to yield one of the conductive terminals 2 in the front row, the distance between the conductive terminals 2 in the front row and the rear row is smaller, and the conductive terminals 2 are arranged more intensively.

(4) In the left-right direction, the distance between the first side edge 2112 and the first outer edge 2121 is smaller than the distance between the second side edge 2113 and the second outer edge 2131, so that the width of the abdicating groove 217 in the left-right direction is wider, and a larger abdicating space can be provided for abdicating one of the conductive terminals 2 in the front row.

(5) Seen from back forward, first central line with the second central line is located respectively first outside with between the second outside, the third central line on left and right sides respectively deviate from in first central line with the second central line, and compare first central line with the second central line is close to first outside sets up, for forming the groove 217 of stepping down provides the space to one of them of front row of stepping down conductive terminal 2.

(6) Opening 25 is in basal portion 20 with extend on the turning part 24, opening 25 surpasss second side 20b and to first side 20a extends, first fixed part 26 corresponds opening 25 position sets up, has increased conductive terminal 2 is in the elasticity of first fixed part 26 department has reduced conductive terminal 2 is right the stress that insulator 1 produced, and then reduces the warpage volume that insulator 1 atress produced has slowed down the trend that weld part 22 upwards moved, weld part 22 is difficult for dragging solder 4 produces the tin and splits, has effectively prevented the electrical disconnection, has guaranteed electrical connector 100 with electrical connection's stability between the circuit board 300.

(7) The slot 31 extends in the connecting arm 23 and extends upward to the base 20, and then extends in the left-right direction on the base 20 toward the first side 20a, the portion of the slot 31 extending in the left-right direction and the opening 25 are at least partially disposed in an up-down correspondence, and the conductive terminal 2 thus forms two bending elastic arms S on opposite sides of the slot 31, which increases the elasticity of the base 20 and the connecting arm 23, and when the soldering portion 22 is about to move upward, the bending elastic arms S can be deformed, which can reduce the upward movement tendency, so that the soldering portion 22 is not easy to pull the solder 4, thereby preventing solder cracking and stabilizing the electrical connection between the electronic component 200 and the circuit board 300.

(8) The first fixing portion 26 is located between the first opening 251 and the second opening 252, for the first fixing portion 26 provides an elastic deformation space, the first fixing portion 26 is of a cantilever structure, the arrangement of the cantilever structure increases the elasticity of the first fixing portion 26, the first fixing portion 26 includes two fixing convex portions 261, in the up-down direction, one of the fixing convex portions 261 is located above the top edge of the second opening 252, the other fixing convex portion 261 is located below the top edge of the second opening 252, and the two fixing convex portions 261 are elastically abutted to the groove walls of the terminal groove 10 in the left-right direction, so that the conductive terminals 2 can be fixed in the terminal groove 10, the abutting force between the first fixing portion 26 and the groove walls is dispersed, the stress generated by the conductive terminals 2 to the insulating body 1 is reduced, the tilting amount generated by the stress of the insulating body 1 is reduced, the trend that the welding portion 22 moves upward is slowed down, and tin cracking is prevented.

The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all the equivalent technical changes using the description and drawings of the present invention are included in the scope of the present invention.

Claims (19)

1. An electrical connector, comprising:

an insulating body;

two rows of conductive terminals adjacent in the front and back are arranged on the insulating body, the two rows of conductive terminals adjacent in the front and back are arranged in a staggered manner in the front and back, and the conductive terminals are provided with:

a base portion;

an elastic arm formed by extending from the upper end of the base part, the elastic arm comprising a contact arm, a first arm and a second arm connected with the contact arm, the first arm and the second arm being arranged at a left-right interval and a through groove being formed between the first arm and the second arm, the contact arm having a contact part and a first lateral edge and a second lateral edge oppositely arranged in the left-right direction, the contact part being located in front of the base part and upwardly exposed out of the insulating body, the first arm and the second arm being respectively located between the base part and the contact part in the extending direction of the elastic arm, the first arm and the contact arm being connected to a first connection part, the second arm with the contact arm is connected in a second and is connected the position, first connection position is in the extending direction of elastic arm is gone up comparatively the second is connected the position and is close to the contact site sets up, first arm has dorsad a first outside that leads to the groove, the second arm has dorsad a second outside that leads to the groove, first lateral margin with first outside is located wherein one side of elastic arm, the second lateral margin with the second outside is located the opposite side of elastic arm, first lateral margin is relative first outside is inside sunken, the second lateral margin is relative the second outside is inside sunken and form a groove of stepping down, the groove of stepping down is used for stepping down one of them conductive terminal of leading bank.

2. The electrical connector of claim 1, wherein: the electric connector comprises a plurality of rows of conductive terminals distributed along the front-back direction, the insulating body comprises a first area and a second area which are adjacently arranged in the front-back direction, the conductive terminals aligned along the front-back direction are distributed in the first area, the conductive terminals positioned in the first area are defined as first terminals, the conductive terminals aligned along the front-back direction are distributed in the second area, the conductive terminals positioned in the second area are defined as second terminals, the first terminals in the two rows adjacent to the first area and the second area are staggered front to back, in the front-back direction, the distance between the first terminals and the second terminals adjacent to each other in the front-back direction is smaller than the distance between the first terminals in the two rows adjacent to each other in the front-back direction, and the distance between the second terminals in the two rows adjacent to each other in the front-back direction.

3. The electrical connector of claim 1, wherein: the first connection position has a first distal end point far away from the contact portion in the extending direction of the contact arm and a first proximal end point close to the contact portion, the second connection position has a second distal end point far away from the contact portion in the extending direction of the contact arm and a second proximal end point close to the contact portion, the first proximal end point is arranged closer to the contact portion than the second proximal end point in the extending direction of the contact arm, and the first distal end point is arranged closer to the contact portion than the second distal end point in the extending direction of the contact arm.

4. The electrical connector of claim 1, wherein: the channel extends between the first arm and the contact arm.

5. The electrical connector of claim 1, wherein: in the left-right direction, a distance between the first side edge and the first outer edge is smaller than a distance between the second side edge and the second outer edge.

6. The electrical connector of claim 1, wherein: the conductive terminal further comprises a welding part arranged below the base part and a connecting arm connecting the base part and the welding part, wherein the welding part is provided with a first central line, the connecting arm is provided with a second central line, the contact arm is provided with a third central line, the first central line and the second central line are respectively positioned between the first outer edge and the second outer edge when viewed from back to front, and the third central line deviates from the first central line and the second central line in the left-right direction and is arranged closer to the first outer edge than the first central line and the second central line.

7. The electrical connector of claim 1, wherein: the insulating body comprises two rows of terminal grooves which are adjacent in the front and the back, the terminal grooves accommodate the conductive terminals, the base part is provided with a first side edge and a second side edge which are opposite in the left-right direction, and the conductive terminals are also provided with:

a welding part located below the base part;

a connecting arm connecting the base and the welding part;

a turning part formed by bending and extending from the first side edge;

an opening extending over the base portion and the turn portion, the opening extending beyond the first side edge and toward the second side edge;

the first fixing part is arranged corresponding to the opening position;

the second fixing part is arranged on the second side edge, and the first fixing part and the second fixing part are used for positioning the conductive terminal in the terminal groove.

8. The electrical connector of claim 7, wherein: the opening extends on the base portion at least to a middle portion of the base portion in the left-right direction.

9. The electrical connector of claim 7, wherein: the opening includes a first opening, a second opening and a third opening, first opening is located second open-ended top, the third opening communicates from top to bottom first opening with the second opening, first opening is followed the turn portion extends to the second side, the second opening is followed the turn portion extends beyond the second side and to first side extends, first fixed part is located first opening with between the second opening.

10. The electrical connector of claim 9, wherein: the first fixing part is of a cantilever structure and elastically abuts against the groove wall of the terminal groove in the left-right direction.

11. The electrical connector of claim 7, wherein: the opening includes a first opening, a second opening and a third opening, first opening is located the second open-ended top, the third opening upper and lower intercommunication first opening with the second opening, first fixed part includes two fixed convex parts, and in the up-down direction, one of them fixed convex part is located the top of second open-ended apical margin, another fixed convex part is located the below of second open-ended apical margin.

12. The electrical connector of claim 7, wherein: the opening comprises a first opening, a second opening and a third opening, the first opening is located above the second opening, the third opening is communicated with the first opening and the second opening from top to bottom, and the second fixing portion is at least partially located above the top edge of the second opening.

13. The electrical connector of claim 7, wherein: the linking arm is relative first side is to being close to the skew of second side, conductive terminal is equipped with a fluting that runs through in the front and back direction, the fluting is in the linking arm extends and upwards extends to the basal portion, then follow left right direction orientation on the basal portion first side extends, the part that the fluting extends on left right direction with the at least partial corresponding setting from top to bottom of opening.

14. The electrical connector of claim 7, wherein: conductive terminal is equipped with a fluting that runs through on the front and back direction, the fluting is in the basal portion with extend on the linking arm, turn over portion has and forms a first support arm and a second support arm of both sides about the opening, first support arm connect in the upper portion on second side, the second support arm connect in the lower part on second side, the second support arm is connected the position of basal portion corresponds in the upper and lower direction the fluting sets up.

15. An electrically conductive terminal, comprising:

a base portion;

the elastic arm extends from the upper end of the base part and comprises a contact arm, a first arm and a second arm, the first arm and the second arm are connected with the contact arm, the contact arm is provided with a contact part, a first lateral edge and a second lateral edge, the first lateral edge and the second lateral edge are oppositely arranged in the left-right direction, the contact part is located in front of the base part, the first arm and the second arm are respectively located between the base part and the contact part in the extending direction of the elastic arm, the first arm and the contact arm are connected to a first connecting position, the second arm and the contact arm are connected to a second connecting position, the first connecting position and the second connecting position are at least partially arranged in a staggered mode in the left-right direction, a through groove is formed between the first arm and the second arm, the first arm is provided with a first outer edge back to the through groove, the second arm is provided with a second outer edge back to the through groove, the first lateral edge and the first outer edge are located on one side of the elastic arm, the second lateral edge and the second outer edge are located on one side of the elastic arm, the second lateral edge and the second side are located on the opposite to the inner side of the first side, the second side, the outer edge, the distance between the first side and the second side is smaller than the distance between the second outer edge.

16. The conductive terminal of claim 15, wherein: the first connection position has a first distal end point far away from the contact portion in the extending direction of the contact arm and a first proximal end point close to the contact portion, the second connection position has a second distal end point far away from the contact portion in the extending direction of the contact arm and a second proximal end point close to the contact portion, the first proximal end point is arranged closer to the contact portion than the second proximal end point in the extending direction of the contact arm, and the first distal end point is arranged closer to the contact portion than the second distal end point in the extending direction of the contact arm.

17. The conductive terminal of claim 15, wherein: the channel extends between the first arm and the contact arm.

18. The conductive terminal of claim 15, wherein: in the left-right direction, a distance between the first side edge and the first outer edge is smaller than a distance between the second side edge and the second outer edge.

19. The conductive terminal of claim 15, wherein: the conductive terminal further comprises a welding part arranged below the base part and a connecting arm connecting the base part and the welding part, the welding part is provided with a first central line, the connecting arm is provided with a second central line, the contact arm is provided with a third central line, the first central line and the second central line are respectively positioned between the first outer edge and the second outer edge when viewed from back to front, and the third central line is respectively deviated from the first central line and the second central line in the left-right direction and is arranged close to the first outer edge compared with the first central line and the second central line.

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