CN201112714Y

CN201112714Y - Electric connector terminal

Info

Publication number: CN201112714Y
Application number: CNU2007201284970U
Authority: CN
Inventors: 曾尚秀
Original assignee: Shanghai Moshi Connector Co Ltd; Molex LLC
Current assignee: Molex Interconnect Shanghai Co Ltd; Shanghai Moshi Connector Co Ltd; Molex LLC
Priority date: 2007-10-12
Filing date: 2007-10-12
Publication date: 2008-09-10
Anticipated expiration: 2017-10-12

Abstract

An electric connector terminal comprises a base, a clamping part, a fixing part and at least one contact part. The base has a top surface and a bottom surface, which are opposite to each other. The clamping part bends and extends from one side end of the base and enters below the bottom surface of the base. The fixing part and the contact part are formed on the top surface of the base in the opposite direction of the clamping part. Therefore, the clamping part clamps a solder ball and the bottom surface of the base supplies a ball-loading plane for the positioning of the solder ball, so that the solder ball is stably clamped without falling.

Description

Electric connector terminal

Technical field

The utility model relates to electric connector terminal, relates in particular to the electric connector terminal that is used for clamping one soldered ball.

Background technology

Existing a kind of array type electric connector that for example is used for the CPU module, the connected mode of electric connector and circuit board is to adopt the welding of perforation formula, being electric connector terminal is provided with the welding foot of penetrable oversampling circuit plate in terminal part, in back of circuit board each welding foot is welded on the circuit junction of circuit board again.Above-mentioned connected mode takies the space of the relative both sides of circuit board, and the wiring space that makes circuit board to use is restricted greatly.

Therefore, the array type electric connector has the another kind of mode that adopts surface soldered at present, implant weldering (tin) ball in advance at the end of electric connector terminal, again electric connector is arranged on the circuit board on the corresponding circuit junction, yet soldered ball is partly melted and be connected with the fusion of the circuit junction of circuit board through heat treated, reaching the purpose of electrical connection, thereby avoid taking the wiring space that circuit board can be used.

For example: TaiWan, China patent announcement number the 573853rd disclosed a kind of electric connector terminal is planted ball structure, sees also shown in Figure 1ly, and this terminal 1 has contact site 11, location division 12 and clamping part 14, also has in order to connect the connecting portion 13 of location division 12 and clamping part 14.Clamping part 14 comprises two clamping limbs 141,141 formation one of clamping limb can be accommodated the grasping part of soldered ball 2, soldered ball 2 is implanted behind the grasping parts and clamping limb 141 mutual extrusion, clamping limb 141 is relatively outwards opened and increase grasping part until fixing soldered ball 2 to both allocations, this soldered ball 2 of clamping limb 141 clampings simultaneously.

Yet, 2 of soldered balls are as a spherical, if will closely clamp the soldered ball 2 of spherical, clip position need be clamped in the diameter periphery of soldered ball 2, but because the soldered ball 2 of spherical and be not easy stably to clamp, soldered ball 2 comes off up or down easily and falls ball, and above-mentioned patent, the design that does not provide effective stable holding to live soldered ball 2 easily makes soldered ball 2 come off up or down easily, can not firmly clamp this soldered ball 2, thereby increase the probability of defective products.

Summary of the invention

The purpose of this utility model provides a kind of one soldered ball of clamping firmly and prevents the electric connector terminal of this soldered ball landing.

In order to achieve the above object, the utility model proposes a kind of electric connector terminal, comprising: a base portion has a relative end face and a bottom surface; One clamping part, this base portion one side bending extends to this below, base portion bottom surface certainly; One fixed part is oppositely to be formed on this top base surface with this clamping part; And at least one contact site, be oppositely to be formed on this top base surface with this clamping part.

Compared with prior art, the beneficial effect that electric connector terminal of the present utility model has comprises: utilize this clamping part to bend in this below, base portion bottom surface, when making this clamping part clamping one soldered ball, the bottom surface of this base portion can form for one of this soldered ball location usefulness and put the ball plane, the height that can control when planting ball makes the height unanimity of planting ball, and then prevent this soldered ball landing, and can firmly clamp this soldered ball, thus avoid producing the appearance of defective products.

Description of drawings

Fig. 1 is existing terminal stereogram.

Fig. 2 is the three-dimensional exploded view of terminal and soldered ball in the electric connector terminal of the present utility model.

Fig. 3 is the three-dimensional combination figure of terminal and another angle of soldered ball in the electric connector terminal of the present utility model.

Fig. 4 is the flat assembly drawing of terminal and soldered ball in the electric connector terminal of the present utility model.

Fig. 5 is the A part partial enlarged drawing of Fig. 4.

Fig. 6 is the three-dimensional exploded view of terminal and pin in the electric connector terminal of the present utility model.

Wherein, description of reference numerals is as follows:

Terminal 1

Contact site 11 location divisions 12

Connecting portion 13 clamping parts 14

Clamping limb 141

Soldered ball 2

Terminal 3

Base portion 30 end faces 301

Bottom surface 302 clamping parts 31

Annular solid 311 breach 312

Fixed part 32 contact sites 33

Linking arm 34 first elastic arms 35

Second elastic arm, 36 guidance parts 37

Hangnail 38 card divisions 39

Soldered ball 4

Pin 5

Apart from d

Radius r

Embodiment

Please consult Fig. 2 and shown in Figure 3 earlier, the utility model provides a kind of electrical connection device terminal 3, and it includes a base portion 30, a clamping part 31, a fixed part 32 and at least one contact site 33.

This base portion 30 is a horizontal plate body, and it has a relative end face 301 and a bottom surface 302.This clamping part 31 bends 302 belows, bottom surface that extend to this base portion 30 from these base portion 30 1 sides, and this fixed part 32 and contact site 33 are oppositely to be formed on the end face 301 of this base portion 30 with this clamping part 31.

In electric connector terminal of the present utility model, the clamping part 31 of this terminal 3 provides clamping one soldered ball 4, and the bottom surface 302 of this base portion 30 can form for one of soldered ball 4 location usefulness and puts the ball plane, and utilize the cooperation of the bottom surface 302 of clamping part 31 and base portion 30, can positively prevent soldered ball 4 landings, firmly clamp soldered ball 4.

In addition, please cooperate again and consult Fig. 4 and shown in Figure 5, for making this clamping part 31 can the most firmly clamp the effect of this soldered ball 4, preferably, 31 pairs of this clamping parts should soldered ball 4 clip position to the vertical range d of these base portion 30 bottom surfaces 302 radius r more than or equal to this soldered ball 4, in other words, when the position of clamping part 31 clamping soldered balls 4 is positioned at the diameter periphery of soldered ball 4 or is lower than the position of diameter, the bottom surface that can cooperate base portion 30 firmly is clamped between the bottom surface of clamping part 31 and base portion 30 soldered ball 4.In addition, the clamping part 31 that is preferably this terminal 3 is one to have the annular solid 311 of breach 312, make flexibly this soldered ball 4 of clamping of these annular solid 311 tools by this breach 312, say further, when this soldered ball 4 is implanted this annular solid 311, by breach 312 annular solid 311 can flexibly outwards be opened behind the position of this soldered ball 4 of fixing, annular solid 311 can closely clamp this soldered ball 4.

Please consult Fig. 2 and Fig. 3 again, in electric connector terminal specific embodiment of the present utility model, this terminal 3 includes a linking arm 34, one first elastic arm 35 and one second elastic arm 36, and a plurality of guidance part 37, a plurality of hangnail 38 and a plurality of card division 39.Above-mentioned fixed part 32 be with this clamping part 31 relatively from these base portion 30 another sides upwards bending extend and moulding is a upright plate body shape.

This linking arm 34 is to extend and moulding from above-mentioned fixed part 32 1 sides bendings, preferably, this linking arm 34 be from these fixed part 32 1 sides partly tear and relatively these base portion 30 bendings extend and moulding.This first elastic arm 35 is towards extending upward and moulding away from these base portion 30 directions from these linking arm 34 terminal parts, this second elastic arm 36 be earlier from these linking arm 34 terminal parts towards be directed downwards near this base portion 30 that bending is extended and reflexed after again towards extending upward and moulding away from these base portion 30 directions, make this first elastic arm 35 roughly be U type shape with this second elastic arm 36.

Two contact sites 33 are located at this first elastic arm 35 and this second elastic arm, 36 ends respectively relative to each other, two guidance parts 37 be respectively from two contact site 33 1 sides towards Zhang Yanshen away from these fixed part 32 directions and relatively and moulding.Two hangnails 38 are based in this fixed part 32 two side ends respectively, and approach this base portion 30.Two card divisions 39 are to tear bending and moulding from these fixed part 32 both side ends respectively, and towards away from this base portion 30, and linking arm 34 is between the position of the hangnail 38 of a side and card division 39.

This terminal 3 is arranged in the terminal groove (not shown) of the insulating body of electric connector, can interfere the wall that is fastened in terminal groove to be fixed by the hangnail 38 and the card division 39 of fixed part 32.In addition, as shown in Figure 6, two contact sites 33 of this terminal 3 can provide the pin 5 of contact one external electronic components (as CPU), this pin 5 can be along the guide function of two guidance parts 37 of this terminal 3 and be inserted into two contact sites 33 and first elastic arm 35, second elastic arm 36 between, and, make two contact sites 33 resilient clamp live pin 5 to reach the purpose of electrical connection by the elastic force that first elastic arm 35 and second elastic arm 36 are had.

In sum, electric connector terminal of the present utility model is to utilize this clamping part 31 to bend in 302 belows, this base portion 30 bottom surfaces, when making clamping part 31 clamping soldered balls 4, the bottom surface 302 of base portion 30 can form puts the ball plane for soldered ball 4 location usefulness, the height that can control when planting ball makes the height unanimity of planting ball, and then prevent soldered ball 4 landings, and can firmly clamp soldered ball 4, thus can avoid producing defective products.

Secondly, the clip position of clamping part 31 corresponding soldered balls 4 to the vertical range d of these base portion 30 bottom surfaces 302 are radius r more than or equal to this soldered ball 4, can reach soldered ball 4 the most firmly is clamped between the bottom surface of clamping part 31 and base portion 30.

In addition, must what is particularly worth mentioning is that, the direction term that electric connector terminal of the present utility model is addressed, for example: upper and lower, left and right, front or rear etc. only are directions with reference to the accompanying drawings.Therefore, the direction term of use is not to be to be used for limiting the utility model.

The above only is a preferable possible embodiments of the present utility model, is not so limits to claim of the present utility model, so the equivalent structure that every utilization the utility model specification and accompanying drawing content are done changes, all is contained in the protection range of the present utility model.

Claims

1, a kind of electric connector terminal is characterized in that, comprising:

One base portion has a relative end face and a bottom surface;

One clamping part, this base portion one side bending extends to this below, base portion bottom surface certainly;

One fixed part is oppositely to be formed on this top base surface with this clamping part; And

At least one contact site is oppositely to be formed on this top base surface with this clamping part.

2, electric connector terminal as claimed in claim 1 is characterized in that: this clamping part is for clamping one soldered ball, this clamping part to clip position that should soldered ball to the vertical range of this base portion bottom surface radius more than or equal to this soldered ball.

3, electric connector terminal as claimed in claim 2 is characterized in that: this clamping part is one to have the annular solid of breach.

4, electric connector terminal as claimed in claim 3 is characterized in that: this fixed part is relatively upwards to bend and extend into type from another side of this base portion with this clamping part.

5, electric connector terminal as claimed in claim 4 is characterized in that, also comprises:

One linking arm, it is to bend and extend into type from this fixed part one side;

One first elastic arm, it is towards extending upward moulding away from this base portion direction from this linking arm terminal part; And

One second elastic arm, its be from this linking arm terminal part towards be directed downwards near this base portion that bending is extended and reflexed after again towards extending upward moulding away from this base portion direction;

Wherein, distinguish elongation moulding one contact site relative to each other at this first elastic arm and this second elastic arm end.

6, electric connector terminal as claimed in claim 5 is characterized in that: at a side of two contact sites respectively towards two guidance parts of Zhang Yanshen away from this fixed part direction and relatively.

7, electric connector terminal as claimed in claim 6 is characterized in that, also comprises:

A plurality of hangnails are based in this fixed part two side ends respectively; And

A plurality of card divisions are to tear bending forming from this fixed part both side ends respectively.