CN109786999A - Electric connector - Google Patents

Abstract

The present invention provides a kind of electric connector, comprising: an insulating body；One shielding piece, is set to the insulating body；An at least ground terminal, in the insulating body, the ground terminal has a base portion, it is folded upward at from the base portion and extends to form one first elastic arm, first elastic arm is equipped with a through slot, there are two inner side edges at left and right sides of the through slot, one first contact portion is extended rearwardly to form from first elastic arm, it is folded upward at from the base portion and extends to form an abutting part and be connected to the shielding piece, the abutting part has a freedom portion, the width of the freedom portion is less than or equal to the distance between two inner side edges, and the freedom portion is formed between two inner side edges；Multiple signal terminals are located in the insulating body；The electric connector can be such that the cross-talk of signal terminal is shielded and can reduce ground terminal the space occupied.

Description

Electric connector

[technical field]

The present invention relates to a kind of electric connectors, refer in particular to a kind of shield electric-connector.

[background technique]

A kind of shielded connector is for electrically connecting to a chip module to a circuit board, comprising: an insulating body, and receive The multiple signal terminals and multiple ground terminals being dissolved in insulating body, each signal terminal have one first base portion, from First base portion top, which is folded upward at, extends to form one first elastic arm, is downwardly extending and sets from first base vertical There is one first tail portion；Each ground terminal has one second base portion, is folded upward at extension shape from second base portion top At one second elastic arm and a crimping arm, the crimping arm is located at the side of second elastic arm, perpendicular from second base portion Directly it is downwardly extending equipped with one second tail portion；Piece is shielded on one, the upper shielding piece covers the upper surface of the insulating body, The upper shielding piece corresponds to each signal terminal and the position of the ground terminal is equipped with a upper end sub-aperture, first bullet Property arm and second elastic arm stretch out the corresponding upper end sub-aperture respectively and abut the chip module, the crimping arm upwards The surface of the upper shielding piece is abutted downwards；Piece is once shielded, the lower shielding piece covers the lower surface of the insulating body, institute It states lower shielding piece and corresponds to the position of each signal terminal and the ground terminal equipped with terminal hole once, first tail portion The lower end sub-aperture, which is passed through, with second tail portion is connected to the circuit board；A connection piece is plate structure, runs through exhausted up and down Edge ontology, and upper and lower ends are welded and fixed with the upper shielding piece, lower shielding piece respectively.Due to the pressure of the ground terminal It connects arm to abut with upper shielding piece, the cross-talk of the signal terminal is enable to be shielded, still, since the crimping arm is set to institute The second elastic arm side of ground terminal is stated, so that the setting of the crimping arm increases the width of ground terminal, causes to increase Described ground terminal the space occupied and the material for increasing the ground terminal, to increase the production of the ground terminal Cost, and not settable more ground terminals and signal terminal in the limited space of insulating body, and then be unfavorable for described Shielded connector transmits more signals, therefore is unfavorable for improving the performance of electric connector.

Therefore, it is necessary to a kind of electric connector be designed, to overcome the above problem.

[summary of the invention]

Creation of the invention is designed to provide a kind of cross-talk for enabling signal terminal and is shielded and reduce ground terminal The electric connector of the space occupied.

In order to achieve the above object, electric connector of the invention adopts the following technical scheme that

A kind of electric connector a, comprising: insulating body；One shielding piece, is set to the insulating body；An at least ground terminal Son is located in the insulating body, and the ground terminal has a base portion, is folded upward at from the base portion and extends to form one first Elastic arm, first elastic arm are equipped with a through slot, have two inner side edges at left and right sides of the through slot, from first elastic arm One first contact portion is extended rearwardly to form, is folded upward at from the base portion and is extended to form an abutting part and be connected to the shielding piece, The abutting part has a freedom portion, and the width of the freedom portion is less than or equal to the distance between two inner side edges, the freedom Portion is formed between two inner side edges；Multiple signal terminals are located in the insulating body, and the signal terminal has one second bullet Property arm, second elastic arm be equipped with a through-hole, extend rearwardly to form one second contact portion from second elastic arm.

Further, the base portion is equipped with a notch and is connected to the through slot, the abutting part from the lower end of the notch to Upper extension.

Further, the abutting part is from the base portion forward fold, and first elastic arm is from the base portion forward fold Extend to bend backward again and extend to form.

Further, the shielding piece is equipped with an accepting hole and accommodates the ground terminal, and institute is stretched out in the upper end of the freedom portion Accepting hole is stated, the side of the abutting part is connected to the accepting hole.

Further, there is the abutting part interconnecting piece to connect the freedom portion and the base portion, the width of the interconnecting piece Degree is greater than the freedom portion, and the side of the freedom portion is connected to the accepting hole.

Further, the ground terminal includes the upper terminal to contact with each other and a lower terminal, and the abutting part is set to institute Upper terminal is stated, the lower terminal is connected to a circuit board.

Further, the shielding piece covers the upper surface of the insulating body, and a sheet metal covers the insulating body Lower surface, the lower terminal are equipped with a junction and contact with the sheet metal.

Further, the lower terminal has a main part, from the main part forward fold and upwardly extends and to form one and prolong Extending portion, the extension and the main part clamp the base portion jointly, bend downward from the main part and extend to form a power Arm abuts downwards the circuit board；Bend and be downwardly extending a bending part backward from the base portion, the base portion with it is described Bending part clamps the main part jointly.

Further, the insulating body has a upper retaining surface and a lower retaining surface, prolongs from the base portion forward fold and upwards Stretch and to form stopper on one and support the upper retaining surface upwards, bent backward from the main part and be downwardly extending stopper to Under support the lower retaining surface.

Further, along the longitudinal direction the freedom portion between two inner side edges.

Compared with prior art, the invention has the following advantages:

Present invention shielding piece since the abutting part is connected to, can enable the cross-talk of the signal terminal be shielded It covers；Since there is the abutting part freedom portion to be formed in the through slot, therefore the abutting part is formed in described through slot or so two Between side, so that the width for the increase ground terminal that the abutting part will not be additional, can reduce the ground terminal and occupy Space, be conducive to that more ground terminals and signal terminal are arranged in the limited space of the insulating body, in turn Be conducive to the electric connector and transmit more signals, improves the performance of electric connector；And the abutting part has described in utilization The material that ground terminal forms the through slot is formed, and the material that not will increase the ground terminal leads to increased costs；In addition, by It is equipped with a through-hole in second elastic arm, so that second elastic arm forms two branches at left and right sides of the through-hole, from And the signal terminal forms two conductive paths in parallel, reduces impedance, improves high frequency.

[Detailed description of the invention]

Fig. 1 is the stereogram exploded view of electric connector of the present invention；

Fig. 2 is the main view of ground terminal of the present invention and signal terminal；

Fig. 3 is the right view of Fig. 2；

Fig. 4 is the three-dimensional view of Fig. 2；

Fig. 5 is the decomposition view of Fig. 2；

Fig. 6 is the cross-sectional view of the position A-A of Fig. 1；

Fig. 7 is the enlarged view of the position of the F of Fig. 6；

Fig. 8 is the enlarged view of the position of the B of Fig. 6；

Fig. 9 is the three-dimensional view of Fig. 6；

Figure 10 is the enlarged view of the position of the C of Fig. 9；

Figure 11 is the enlarged view of the position of the D of Fig. 9；

Figure 12, which is that upper terminal molding of the invention is preceding, connect plane outspread drawing with material strip；

Figure 13 is the position the E enlarged view of Figure 12；

Figure 14 is the top view of electric connector of the present invention.

The drawing reference numeral of specific embodiment illustrates:

Upper terminal	1	Base portion	11	Notch	12
						First elastic arm	13	Through slot	14	Inner side edge	141
First contact portion	15	Abutting part	16	Interconnecting piece	161
						Freedom portion	162	Bending part	17	Upper stopper	18
Continuous material	19	Lower terminal	2	Main part	21
						Junction	22	The arm of force	23	Lower stopper	24
Extension	25	Signal terminal	3	Second elastic arm	31
						Second contact portion	32	Through-hole	33	Insulating body	4
Upper matrix	41	Upper retaining surface	411	Lower substrate	42
						Lower retaining surface	421	Shield piece	5	Accepting hole	51
Sheet metal	6	Perforation	61	Material strip	7
						Ground terminal	100	Chip module	200	Circuit board	300

[specific embodiment]

Purpose, structure, feature and effect to facilitate the understanding of the present invention etc., now in conjunction with attached drawing and specific implementation The invention will be further described for mode.

It as shown in figs. 1 to 14, is the embodiment of electric connector of the present invention, the electric connector is for being electrically connected a core 200 to one circuit board 300 of piece module comprising: an insulating body 4；It is contained in multiple ground terminals of the insulating body 4 100 and majority signal terminal 3, the ground terminal 100 and the signal terminal 3 be connected to the chip module 200 upwards, to The lower connection circuit board 300；Piece 5 covers the upper surface of the insulating body 4, a sheet metal 6 covers the insulation for one shielding The lower surface of ontology 4, the ground terminal 100 are connected with the shielding piece 5 and sheet metal 6 respectively.

As shown in Fig. 1,9, the insulating body 4 includes matrix 41, a lower substrate 42 on one, under the upper matrix 41 Surface is bonded with the upper surface of lower substrate 42, as shown in fig. 7, the upper matrix 41 be equipped with a upper retaining surface 411, as shown in figure 11, The lower substrate 42 is equipped with a lower retaining surface 421.

As shown in Fig. 1,6,7, the shielding piece 5 is metal material, covers the upper surface of the upper matrix 41, and with institute 41 injection molding of matrix (insert-mold) is stated, the shielding piece 5 is equipped with multiple accepting holes 51 and accommodates multiple ground terminals Son 100 and multiple signal terminals 3.

As shown in Fig. 1,6,8, the sheet metal 6 covers the lower surface of the lower substrate 42, and with 42 note of lower substrate It is moulded into type (insert-mold), the sheet metal 6 is equipped with multiple perforation 61.

As shown in Fig. 2,4,6, the ground terminal 100 is two-piece type comprising the upper terminal 1 is contained in the receiving Hole 51 and lower terminal 2 are contained in the perforation 61, and the upper terminal 1 has a base portion 11, divide from left and right sides of the base portion 11 A continuous material 19 has not been upwardly extended for binder band 7 (as shown in figure 12), and the base portion 11 is tabular, from the base portion 11 forward folds, which extend to bend backward again, extends to form one first elastic arm 13, extends rearwardly to form from first elastic arm 13 One first contact portion 15 is connected to the chip module 200 upwards, and first elastic arm 13 is equipped with a through slot 14, the through slot 14 left and right sides have two inner side edges 141, and the through slot 14 extends to first contact portion 15,11 center ofthe of base portion Equipped with a notch 12, the notch 12 is connected to the through slot 14, from the lower end forward fold of the notch 12 and upwardly extends An abutting part 16 is formed, there is the abutting part 16 freedom portion 162 and an interconnecting piece 161 to connect the freedom portion 162 and institute Base portion 11 is stated, the width of the interconnecting piece 161 is greater than the freedom portion 162, as shown in Figure 12,13, forms in the upper terminal 1 Before, the left and right sides of the abutting part 16 connects two inner side edges 141, when molding, the abutting part 16 from the through slot 14 downwards Tearing is formed, and (certainly, is existed so that the width of the freedom portion 162 is equal to the distance between two inner side edges 141 of the through slot 14 In other embodiments, the freedom portion 162 can also be to be formed from 14 blanking of through slot, therefore the width of the freedom portion 162 It is smaller than the distance between two inner side edges 141 of the through slot 14), i.e., punching press is gone when the described freedom portion 162 is formed by through slot 14 The some materials removed are formed, and the freedom portion 162 is between two inner side edge 141 along the longitudinal direction, the freedom portion The accepting hole 51 is stretched out in 162 upper end, and the side of the freedom portion 162 is connected to the accepting hole 51.The base portion 11 to Under be pierced by the upper matrix 41 and reach in the lower substrate 42, as shown in Fig. 4,6,7, bent backward from the base portion 11 and to Under extend to form the lower section that a bending part 17 is located at the notch 12, the right side that the bending part 17 is biased to the base portion 11 is set It sets, bends and upwardly extend to form stopper 18 on one and support the upper retaining surface 411 upwards backward from 11 left side of the base portion, to prevent Only upper terminal 1 is upwardly separated from matrix 41.

As shown in Fig. 2,4,6, the lower terminal 2 has a main part 21, and the main part 21 is upward through the lower base Body 42 is reached in the upper matrix 41 and is held between the base portion 11 and the bending part 17.As shown in Fig. 1,9,11, from 21 forward fold of main part is bent to form an arm of force 23 backward again, and the arm of force 23 extends downwardly the perforation 61 and supports downwards Connect the circuit board 300.A junction 22 is extended downwardly positioned at the 21 center ofthe position of main part, the junction 22 Side is connected to the perforation 61.An extension 25, which is formed, from 21 forward fold of main part and upwardly extending is located at described lead The top of socket part 22, the extension 25 clamp the base portion 11 with the main part 21 jointly, and the extension 25 is biased to institute The left side setting for stating main part 21 bends and upwardly extends to form stopper 24 and support downwards backward from 21 right side of the main part The lower retaining surface 421 is held, to prevent lower terminal 2 to be detached from lower substrate 42 downwards.

As shown in Fig. 1,3,4, the signal terminal 3 is similar to 100 structure of ground terminal, i.e., the described signal terminal 3 With one second elastic arm 31 (it is identical as 13 structure of the first elastic arm), second elastic arm 31 is equipped with 33 (its of a through-hole It is identical as 14 structure of through slot) make second elastic arm 31 form symmetrical two points at left and right sides of the through-hole 33 It is upward to extend rearwardly to form one second contact portion 32 (it is identical as 15 structure of the first contact portion) from second elastic arm 31 for branch It is connected to the chip module 200, the difference of the signal terminal 3 and ground terminal 100 is the signal terminal 3 without institute Abutting part 16 and junction 22 are stated, so that the signal terminal 3 will not be contacted with the shielding piece 5, sheet metal 6.

As shown in Fig. 6,14, each 3 surrounding of signal terminal is surrounded by multiple ground terminals 100, the ground connection The abutting part 16 of terminal 100 is connected with shielding piece 5, junction 22 is connected with the sheet metal 6, to be formed each letter Number three-dimensional shielding space disposed within of terminal 3, so that each signal terminal 3 reaches good shield effectiveness, certainly The arrangement of the signal terminal 3 and ground terminal 100 is without being limited thereto.

Certainly, in other embodiments, the ground terminal 100 can be single type, that is to say, that the ground terminal 100 only have upper terminal 1, are downwardly extending a weld part (not shown) from the base portion 11 and connect with the circuit board 300.

Electric connector of the invention has the advantages that

1. the present invention can enable the cross-talk of the signal terminal 3 since the abutting part 16 is connected to the shielding piece 5 It is shielded；Since there is the abutting part 16 freedom portion 162 to be formed in the through slot 14, therefore the abutting part 16 is formed in Between 14 left and right sides of through slot, thus the width for the increase ground terminal 100 that the abutting part 16 will not be additional, Can reduce described 100 the space occupied of ground terminal, and the abutting part 16 formed using the ground terminal 100 it is described The material of through slot 14 is formed, and the material that not will increase the ground terminal 100 leads to increased costs；In addition, due to described second Elastic arm 31 is equipped with a through-hole 33, so that second elastic arm 31 forms two branches at left and right sides of the through-hole 33, thus It is formed successively via two conductive paths in parallel of two branch, is reduced between the chip module 200 and circuit board 3 Impedance improves high frequency.

2. the width due to the interconnecting piece 161 is greater than the freedom portion 162, the interconnecting piece 161 is settable biggish For width to enhance the intensity of the abutting part 16,162 width design of freedom portion is smaller to avoid the excessive shadow of the through slot 14 The intensity of first elastic arm 13 is rung, but also having better bullet when the freedom portion 162 is abutted with the shielding piece 5 Property.

3. the lower end of the abutting part 16 from the notch 12 of the base portion 11 upwardly extends, thus is increasing the abutting part 16 length can reduce the height of the abutting part 16 simultaneously, and then reduce the height of the shielding piece 5, be conducive to electric connector The development trend of slimming.

Detailed description above is only the explanation of the preferred embodiments of the invention, the scope of the patents that is non-therefore limiting to the present invention, So all, with this creation specification and diagramatic content institute, equivalence techniques change for it, are both contained in the scope of the patents of this creation It is interior.

Claims (10)

1. a kind of electric connector, it is characterised in that: include:

One insulating body；

One shielding piece, is set to the insulating body；

An at least ground terminal is located in the insulating body, and the ground terminal has a base portion, is bent up from the base portion Folding extends to form one first elastic arm, and first elastic arm is equipped with a through slot, has two inner side edges at left and right sides of the through slot, One first contact portion is extended rearwardly to form from first elastic arm, is folded upward at from the base portion and is extended to form an abutting part and support It is connected to the shielding piece, the abutting part has a freedom portion, and the width of the freedom portion is less than or equal to two inner side edge The distance between, the freedom portion is formed between two inner side edge；

Multiple signal terminals are located in the insulating body, and the signal terminal has one second elastic arm, second elasticity Arm is equipped with a through-hole, extends rearwardly to form one second contact portion from second elastic arm.

2. electric connector as described in claim 1, it is characterised in that: the base portion is equipped with a notch and is connected to the through slot, The lower end of the abutting part from the notch upwardly extends.

3. electric connector as described in claim 1, it is characterised in that: the abutting part is described from the base portion forward fold First elastic arm, which extends to bend backward again from the base portion forward fold, to be extended to form.

4. electric connector as described in claim 1, it is characterised in that: the shielding piece is equipped with an accepting hole and accommodates the ground connection The accepting hole is stretched out in the upper end of terminal, the freedom portion, and the side of the abutting part is connected to the accepting hole.

5. electric connector as claimed in claim 4, it is characterised in that: there is the abutting part interconnecting piece to connect the freedom The width of portion and the base portion, the interconnecting piece is greater than the freedom portion, and the side of the freedom portion is connected to the accepting hole.

6. electric connector as described in claim 1, it is characterised in that: the ground terminal includes the upper terminal to contact with each other With a lower terminal, the abutting part is set to the upper terminal, and the lower terminal is connected to a circuit board.

7. electric connector as claimed in claim 6, it is characterised in that: the shielding piece covers the upper table of the insulating body Face, a sheet metal cover the lower surface of the insulating body, and the lower terminal is equipped with a junction and contacts with the sheet metal.

8. electric connector as claimed in claim 6, it is characterised in that: the lower terminal has a main part, from the main body It portion's forward fold and upwardly extends to form an extension, the extension and the main part clamp the base portion jointly, from institute It states main part and bends downward and extend to form an arm of force and abut the circuit board downwards；It bends and extends downwardly backward from the base portion A bending part is formed, the base portion and the bending part clamp the main part jointly.

9. electric connector as claimed in claim 8, it is characterised in that: the insulating body has a upper retaining surface and a lower block Face bends and upwardly extends to form stopper on one and support the upper retaining surface upwards backward from the base portion, from the main part to After bend and be downwardly extending stopper and support the lower retaining surface downwards.

10. electric connector as described in claim 1, it is characterised in that: the freedom portion is located at two inner side edges along the longitudinal direction Between.