CN109286092B

CN109286092B - Electrical connector

Info

Publication number: CN109286092B
Application number: CN201811112077.2A
Authority: CN
Inventors: 殷腾飞
Original assignee: Lotes Guangzhou Co Ltd
Current assignee: Lotes Guangzhou Co Ltd
Priority date: 2018-09-25
Filing date: 2018-09-25
Publication date: 2020-07-28
Anticipated expiration: 2038-09-25
Also published as: CN109286092A

Abstract

The invention discloses an electric connector, which is used for leading a butt-joint element to an electronic element and is characterized by comprising the following components: a body; the plurality of terminals are arranged on the body in at least one row, each row of terminals comprises a plurality of grounding terminals and at least one signal terminal, each grounding terminal and each signal terminal comprise a base part arranged on the body and a contact part formed by upwards extending from the upper end of the base part, the contact part is exposed out of the body and is used for being connected with the butt joint element in a guide way, each signal terminal further comprises a guide connection part formed by downwards extending from the lower end of the base part, the guide connection part is exposed out of the bottom of the body and is used for being connected with the electronic element in a guide way, each grounding terminal further comprises a bending part formed by upwards bending and extending from the lower end of the base part, the lower end of the bending part is downwards exposed out of the body and is used for being connected with. The bending part leads the connecting piece to the leading part, and the bending part is in leading connection with the electronic element so as to shield the electromagnetic interference among the terminals.

Description

Electrical connector

Technical Field

The present invention relates to an electrical connector, and more particularly, to an electrical connector with a good grounding effect.

Background

With the development of science and technology, electronic products are developed towards miniaturization and high performance, and the requirements on the transmission rate of the electronic products are higher and higher while the volume of the electronic products is reduced, so that the electric connector structure of the existing electronic products cannot meet the requirements on the transmission rate.

A conventional electrical connector includes an insulating body, a plurality of conductive terminals fixed to the insulating body, and a metal housing covering the periphery of the insulating body. Each conductive terminal is provided with a main body part for fixing the conductive terminal on the insulating body, a contact part extending upwards from the main body part and used for contacting with an electronic element, and a welding part extending downwards from the main body part for welding the conductive terminal on a circuit board. The metal shell is provided with a plurality of fixing pins welded to the circuit board, and the fixing pins are in contact with a grounding circuit of the circuit board, so that the grounding function is achieved, and the signal interference of the external environment on the conductive terminals is shielded.

However, in the conventional electrical connector, only the metal housing shields external signal interference, but electromagnetic interference still exists between the conductive terminals, which does not meet the requirement on high frequency performance.

Therefore, there is a need for a new electrical connector to overcome the above problems.

Disclosure of Invention

In view of the problems faced by the background art, it is an object of the present invention to provide an electrical connector capable of reducing electromagnetic interference between terminals.

In order to achieve the purpose, the electric connector adopts the following technical scheme:

an electrical connector for electrically coupling a mating component to an electronic component, comprising: a body; a plurality of terminals disposed on the body in at least one row, each row of the terminals including a plurality of ground terminals and at least one signal terminal, each of the ground terminals and the signal terminals including a base portion disposed on the body and a contact portion extending upward from an upper end of the base portion, the contact part is exposed on the body and is used for being connected with the butting element in a conduction mode, each signal terminal also comprises a connection part which is formed by extending downwards from the lower end of the base part, the conducting part is exposed out of the bottom of the body and is used for conducting connection with the electronic element, each grounding terminal also comprises a bending part which is formed by bending and extending upwards from the lower end of the base part, the lower end of the bending part is downwards exposed out of the body and is used for being connected with the electronic element in a conduction mode, and the bending parts of the grounding terminals located in the same row are connected through a connecting piece.

Furthermore, each bending part comprises a horizontal part bent and extended from the base part and a vertical part bent and extended upwards from the horizontal part, and the horizontal part is used for being connected with the electronic element in a conduction mode.

Further, the vertical parts are parallel to the base parts, and the connecting pieces are connected with the upper ends of the vertical parts in the same row.

Further, the connecting member is integrally formed with the ground terminal located in the same row.

Furthermore, the guiding connection part and the bending part which are positioned in the same row are formed by outwards bending and extending, and the lower end of the guiding connection part is flush with the lower end of the bending part.

Furthermore, the body comprises two side walls extending along a lengthwise direction and a slot positioned between the two side walls, the slot is used for accommodating the butt joint element, and the contact part protrudes into the slot and is used for being in guide connection with the butt joint element.

Furthermore, the terminals are arranged in two rows and are respectively arranged on the two side walls, and the connecting pieces are correspondingly arranged on the two side walls.

Further, only one of the ground terminals is connected to each of the opposite ends of the connecting member.

Compared with the prior art, the electric connector has the following beneficial effects:

the conducting part of the signal terminal is formed by extending downwards from the lower end of the base part, the bent part of the grounding terminal is formed by bending upwards and extending from the lower end of the base part, the connecting piece is connected with the bent parts positioned in the same row, and the bent parts enable the connecting piece to yield the conducting part so as to avoid short circuit caused by contact between the connecting piece and the conducting part; the lower end of the bending part is downwards exposed out of the body and is connected with the electronic element in a guiding mode, so that the grounding terminal and the connecting piece are grounded simultaneously, electromagnetic interference among a plurality of terminals in the electric connector is shielded, and the high-frequency performance of the electric connector is guaranteed.

An electrical connector for electrically coupling a mating component to an electronic component, comprising: a body; the plurality of terminals are arranged on the body in at least one row, each row of the terminals comprises a plurality of grounding terminals and at least one signal terminal, each terminal and each signal terminal comprise a base part arranged on the body and a contact part formed by upwards extending from the upper end of the base part, the contact part is exposed out of the body and used for being connected with the butting element in a guiding way, each signal terminal also comprises a guiding connection part formed by downwards extending from the lower end of the base part, the guiding connection part is exposed out of the bottom of the body and used for being connected with the electronic element in a guiding way, and each grounding terminal also comprises a bending part formed by upwards bending and extending from the lower end of the base part; at least one connecting piece, set up and locate along a vertical direction the body, each the connecting piece is connected and is located the same row the kink of ground terminal, each the connecting piece has a ground connection foot, ground connection foot exposes downwards the bottom of body be used for with electronic component leads connects.

Furthermore, each bending part comprises a horizontal part bent and extended from the base part and a vertical part bent and extended upwards from the horizontal part, and each connecting piece is connected with the upper ends of the vertical parts in the same row.

Furthermore, each connecting piece has a main part that is vertical flat-plate-shaped, the main part is fixed in the body, ground connection foot from the main part downward and the inside bending extension form, the connection portion from the basal portion lower extreme downward and the outside bending extension form.

Further, the lower end of the grounding pin is flush with the lower end of the guide connection part.

Further, each of the connecting members is integrally formed with the ground terminals located in the same row.

Further, each connecting piece is close to the outer side of the corresponding side wall and is relatively far away from the slot.

Furthermore, the body has a fool-proof portion located in the slot, the fool-proof portion is connected with two of the side walls along a transverse direction, and the grounding pin is arranged along the transverse direction corresponding to the fool-proof portion.

the conducting part of the signal terminal is formed by extending downwards from the lower end of the base part, the bent part of the grounding terminal is formed by bending upwards and extending from the lower end of the base part, the connecting piece is connected with the bent parts positioned in the same row, and the bent parts give way to the conducting part to avoid short circuit caused by contact between the connecting piece and the conducting part; the connecting piece is arranged along the vertical direction and is arranged on the body, so that the occupied space of the connecting piece in the body is reduced, and the development of the electric connector towards the miniaturization direction is facilitated; the grounding pin of the connecting piece is downwards exposed out of the body and is connected with the electronic element in a guiding mode, so that the grounding terminal and the connecting piece are simultaneously grounded, electromagnetic interference among a plurality of terminals in the electric connector is shielded, and the high-frequency performance of the electric connector is guaranteed.

[ description of the drawings ]

Fig. 1 is an exploded perspective view of an electrical connector and an electronic component according to the present invention;

fig. 2 is an exploded perspective view of the first row of terminals and the electronic component of the electrical connector of fig. 1;

fig. 3 is an exploded perspective view of a second row of terminals and an electronic component of the electrical connector of fig. 1;

FIG. 4 is a perspective view of the two rows of terminals of the electrical connector of FIG. 1 in electrical contact with an electronic component;

FIG. 5 is an exploded perspective view of the electrical connector of FIG. 1 with an electronic component and a docking component;

fig. 6 is a perspective view of the terminal of the electrical connector shown in fig. 5 assembled into the body and electrically connected to the electronic component;

FIG. 7 is a front view of FIG. 6;

fig. 8 is a perspective view of the electrical connector of fig. 5 rotated 180 ° in the vertical direction;

fig. 9 is a perspective view of the terminal of the electrical connector of fig. 8 assembled into a body;

fig. 10 is a top view of fig. 9.

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

electrical connector 100	Body 1	Side wall 11	Receiving hole 111
				Accommodating groove 112	Socket 12	Fool-proof part 13	Terminal 2
Ground terminal 2A	Base 21	Contact part 22	Bent part 23
				Horizontal part 231	Vertical portion 232	Signal terminal 2B	Lead-in portion 24
Connecting piece 3	Main body 31	Connecting part 32	Grounding pin 33
				Docking element 200	Notch 4	Conducting pad 5	Electronic component 300
First bonding pad 6	Second bonding pad 7	Third bonding pad 8	Longitudinal direction X
				Transverse direction Y	In the vertical direction Z	Vertical plane P

[ detailed description ] embodiments

For a better understanding of the objects, structure, features, and functions of the invention, reference should be made to the drawings and detailed description that follow.

As shown in fig. 1, the electrical connector 100 of the present invention defines a vertical direction Z, and a longitudinal direction X and a transverse direction Y perpendicular to the vertical direction Z and perpendicular to each other.

Referring to fig. 1, 5 and 6, an electrical connector 100 for connecting a mating component 200 to an electronic component 300 according to the present invention includes a body 1, and a plurality of terminals 2 and two connectors 3 disposed in the body 1. In the present embodiment, the electrical connector 100 is a PCI-E connector, the docking component 200 is an electronic card, and the electronic component 300 is a circuit board. Of course, in other embodiments, the electrical connector 100 may be other types of connectors, and other types of components are correspondingly used for the docking element 200 and the electronic element 300.

As shown in fig. 1, 5 and 6, the body 1 is made of an insulating material, and the body 1 includes two side walls 11 extending along the longitudinal direction X, a slot 12 located between the two side walls 11, and a fool-proof portion 13 located in the slot 12. The insertion slot 12 is used for inserting the docking element 200 downwards, the fool-proof portion 13 is connected to the two side walls 11 along the transverse direction Y, and the docking element 200 is provided with a notch 4 corresponding to the fool-proof portion 13.

As shown in fig. 5, 7 and 8, each of the sidewalls 11 has a plurality of receiving holes 111 and a receiving groove 112 located outside the receiving holes 111. Each of the receiving holes 111 vertically penetrates the side wall 11 along the vertical direction Z and is transversely communicated with the slot 12, and the plurality of receiving holes 111 located on the same side wall 11 are arranged in a row in the longitudinal direction X. The receiving groove 112 penetrates the bottom of the sidewall 11 downward along the vertical direction Z and does not penetrate the top of the sidewall 11 upward, and the receiving groove 112 extends along the longitudinal direction X and a plurality of receiving holes 111 corresponding to the receiving groove 112 are arranged at intervals in the transverse direction Y.

As shown in fig. 1, 5 and 6, the terminals 2 are made of a metal material and are upwardly assembled in the receiving holes 111, the terminals 2 are arranged in two rows and are respectively disposed on the two side walls 11, and the terminals 2 in the same row are correspondingly received in the receiving holes 111 in the same row. Of course, in other embodiments, the electrical connector 100 may be provided with only one row of the terminals 2 and correspondingly received in one row of the receiving holes 111.

As shown in fig. 1 to 4, the terminals 2 in each row include a plurality of ground terminals 2A and a plurality of signal terminals 2B, and the arrangement of the plurality of ground terminals 2A and the plurality of signal terminals 2B conforms to the PCI-E connector standard, wherein two signal terminals 2B are located between two adjacent ground terminals 2A for transmitting high-speed signals. Of course, in other embodiments, the terminals 2 of each row may have only one signal terminal 2B.

As shown in fig. 5, 6 and 7, each of the ground terminal 2A and the signal terminal 2B includes a base portion 21 and a contact portion 22 bent and extended upward and inward from an upper end of the base portion 21. The base 21 is fixedly engaged with the receiving hole 111. The contact portion 22 protrudes into the slot 12, the docking element 200 is provided with a conductive pad 5 corresponding to each contact portion 22, and the contact portion 22 is used for being in conductive connection with the conductive pad 5.

As shown in fig. 5, 6 and 7, each of the ground terminals 2A includes a bent portion 23 formed by bending and extending outward and upward from the lower end of the base portion 21, and the lower end of the bent portion 23 is exposed downward from the bottom of the body 1 for being connected to the electronic component 300. Each of the bent portions 23 includes a horizontal portion 231 bent and extended outward from the lower end of the base portion 21, and a vertical portion 232 bent and extended upward from the horizontal portion 231, wherein the vertical portion 232 is parallel to the base portion 21. The horizontal portions 231 are exposed out of the bottom of the body 1, the electronic component 300 is provided with a first bonding pad 6 corresponding to each horizontal portion 231, and the horizontal portions 231 are connected to the first bonding pads 6 in a surface bonding manner, so as to ground the ground terminal 2A and the electronic component 300.

As shown in fig. 5, 6 and 7, each of the signal terminals 2B includes a conductive portion 24 bent and extended downward and outward from the lower end of the base portion 21, the conductive portion 24 is exposed downward from the bottom of the body 1, the lower end of the conductive portion 24 is flush with the lower end of the horizontal portion 231, the electronic component 300 is provided with a second bonding pad 7 corresponding to each of the conductive portions 24, and the conductive portion 24 is connected to the second bonding pad 7 by surface bonding.

As shown in fig. 5 to 8, the connecting members 3 are made of metal materials and are assembled in the accommodating grooves 112 upward, and the two connecting members 3 are disposed along the vertical direction Z and are respectively disposed on the two side walls 11, so that the occupied space of the connecting members 3 in the body 1 is reduced. Each of the connectors 3 is close to the outer side of the corresponding side wall 11 and relatively far away from the slot 12, so that the connectors 3 and the docking element 200 are prevented from being short-circuited due to contact. Of course, in other embodiments, when the terminals 2 are provided in only one row, the connecting members 3 are provided in only one row.

As shown in fig. 2 and 3, only one of the ground terminals 2A is connected to each of the opposite ends of the connecting member 3. In this embodiment, each of the connecting members 3 is integrally formed with the upper end of the vertical portion 232 of the ground terminal 2A located in the same row, so that the connecting members 3 and the ground terminals 2A corresponding to the same row are simultaneously formed on the same plate, thereby simplifying the forming process. Of course, in other embodiments, each of the connecting members 3 may be formed separately from the ground terminals 2A in the same row and connected to each other.

As shown in fig. 5 to 8, each of the connecting members 3 includes a main body 31 in a vertical flat plate shape, a plurality of connecting portions 32 extending vertically downward from the main body 31, and a grounding pin 33 formed by bending and extending downward and inward from the main body 31. The main body 31 is correspondingly fixed in the accommodating groove 112. The lower end of the connecting portion 32 is connected to the upper end of the vertical portion 232, and the width of the connecting portion 32 is greater than the width of the vertical portion 232 along the longitudinal direction X. The grounding pin 33 is exposed out of the bottom of the body 1, the lower end of the grounding pin 33 is flush with the lower end of the guiding and connecting part 24, the lower end of the bending part 23 and the lower end of the grounding pin 33 are positioned in the same row along the longitudinal direction X, the electronic element 300 is provided with a third welding pad 8 corresponding to each grounding pin 33, and the grounding pin 33 is connected with the third welding pad 8 in a surface welding manner so as to connect the connecting piece 3 with the electronic element 300 to be grounded.

As shown in fig. 1, 2 and 3, the first bonding pad 6, the second bonding pad 7 and the third bonding pad 8 are arranged in two rows corresponding to the plurality of terminals 2, and the first bonding pad 6, the second bonding pad 7 and the third bonding pad 8 located in the same row are aligned in the longitudinal direction X.

As shown in fig. 6, 9 and 10, the grounding pin 33 is located below the fool-proof portion 13, and the grounding pin 33 is disposed along the transverse direction Y corresponding to the fool-proof portion 13, that is, the grounding pins 33 of the two connecting members 3 define a vertical plane P in the transverse direction Y, and the vertical plane P extends upward through the fool-proof portion 13.

In summary, the electrical connector of the present invention has the following advantages:

(1) the lead-connecting part 24 of the signal terminal 2B is formed by extending downward from the lower end of the base part 21, the bending part 23 of the ground terminal 2A is formed by bending and extending upward from the lower end of the base part 21, the connecting piece 3 is connected to the bending part 23 in the same row, and the bending part 23 enables the connecting piece 3 to yield to the lead-connecting part 24, so that the short circuit between the connecting piece 3 and the lead-connecting part 24 due to contact is avoided.

(2) The lower end of the bent portion 23 is exposed downward from the main body 1 and is connected to the electronic component 300, so that the ground terminal 2A and the connecting member 3 are grounded at the same time, thereby shielding electromagnetic interference between the terminals 2 inside the electrical connector 100 and ensuring high-frequency performance of the electrical connector 100.

(3) The connecting piece 3 is arranged along the vertical direction Z and is arranged on the body 1, so that the occupied space of the connecting piece 3 in the body 1 is reduced, and the electric connector 100 is favorably developed towards the miniaturization direction; the grounding pin 33 of the connecting member 3 is exposed downward from the body 1 and is connected to the electronic component 300, so that the grounding terminal 2A and the connecting member 3 are grounded at the same time, thereby shielding electromagnetic interference between the terminals 2 inside the electrical connector 100 and ensuring the high-frequency performance of the electrical connector 100.

(4) The lower end of the connecting part 24, the lower end of the bending part 23 and the lower end of the grounding pin 33 are all flush with each other, so that the lower end of the connecting part 24, the lower end of the bending part 23 and the lower end of the grounding pin 33 are conveniently connected with the electronic element 300 in a surface welding manner.

(5) The main body part 31 of the connecting piece 3 is in a vertical flat plate shape and is fixed in the accommodating groove 112, so that the fixing effect of the connecting piece 3 in the body 1 is ensured; ground connection foot 33 is inwards buckled, and simultaneously the connection portion 24 outwards buckles, has guaranteed ground connection foot 33's lower extreme with connection portion 24's lower extreme is followed lie in same straight line on the lengthwise direction X, has reduced electric connector 100's whole volume.

(6) Connecting piece 3 ground connection foot 33 is followed transverse direction Y corresponds fool-proof portion 13 sets up, does not change original under the condition of body 1's structure, with make full use of correspond the below position of fool-proof portion 13 sets up ground connection foot 33 is favorable to electric connector 100 develops towards miniaturized direction.

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 technical changes that can be made by applying the present specification and the drawings are included in the scope of the present invention.

Claims

1. An electrical connector for electrically coupling a mating component to an electronic component, comprising:

a body;

a plurality of terminals disposed in at least one row on the body, each row of the terminals including a plurality of ground terminals and at least one signal terminal, each of the ground terminals and the signal terminals including a base portion disposed on the body and a contact portion extending upward from an upper end of the base portion, the contact portion being exposed at the body for conductive connection with the mating component, each of the signal terminals further including a conductive portion extending downward from a lower end of the base portion, the conductive portion being exposed at a bottom of the body for conductive connection with the electronic component, each of the ground terminals further including a bent portion extending upward from a lower end of the base portion, a lower end of the bent portion being exposed downward from the body for conductive connection with the electronic component, the bent portions of the ground terminals in the same row being connected through a connecting member, each bending part comprises a horizontal part bent and extended from the base part and a vertical part bent and extended upwards from the horizontal part, each connecting piece is connected with the upper ends of the vertical parts in the same row, and each connecting piece and the upper ends of the vertical parts of the grounding terminals in the same row are integrally formed.

2. The electrical connector of claim 1, wherein: each bending part comprises a horizontal part bent and extended from the base part and a vertical part bent and extended upwards from the horizontal part, and the horizontal part is used for being connected with the electronic element in a conduction mode.

3. The electrical connector of claim 2, wherein: the vertical parts are parallel to the base parts, and the connecting pieces are connected with the upper ends of the vertical parts in the same row.

4. The electrical connector of claim 1, wherein: the guide connection part and the bending part which are positioned in the same row are formed by outwards bending and extending, and the lower end of the guide connection part is flush with the lower end of the bending part.

5. The electrical connector of claim 1, wherein: the body comprises two side walls extending along a lengthwise direction, and a slot positioned between the two side walls, the slot is used for accommodating the butt joint element,

the contact part protrudes into the slot and is used for being connected with the butt joint element in a guide mode.

6. The electrical connector of claim 5, wherein: the terminals are arranged in two rows and are respectively arranged on the two side walls, and the connecting pieces are correspondingly arranged on the two side walls.

7. The electrical connector of claim 1, wherein: the two opposite ends of each connecting piece are connected with only one grounding terminal.

8. An electrical connector for electrically coupling a mating component to an electronic component, comprising:

a body;

the plurality of terminals are arranged on the body in at least one row, each row of the terminals comprises a plurality of grounding terminals and at least one signal terminal, each terminal and each signal terminal comprises a base part arranged on the body and a contact part formed by upwards extending from the upper end of the base part, the contact part is exposed out of the body and is used for being connected with the butting element in a guiding way, each signal terminal also comprises a guiding connection part formed by downwards extending from the lower end of the base part, the guiding connection part is formed by downwards and outwards bending and extending from the lower end of the base part, the guiding connection part is exposed out of the bottom of the body and is used for being connected with the electronic element in a guiding way, and each grounding terminal also comprises a bending part formed by upwards bending and extending from the lower end of the base part;

at least one connecting piece, set up and locate along a vertical direction the body, each the connecting piece is connected and is located same row ground terminal the kink, each the connecting piece has a ground connection foot, ground connection foot exposes downwards the bottom of body be used for with electronic component leads connects, each the connecting piece has a main part that is vertical flat-plate-shaped, the main part is fixed in the body, ground connection foot certainly the main part is downward and inwards buckle and extend and form, each the connecting piece with be located same row ground terminal integrated into one piece.

9. The electrical connector of claim 8, wherein: each bending part comprises a horizontal part bent and extended from the base part and a vertical part bent and extended upwards from the horizontal part, and each connecting piece is connected with the upper ends of the vertical parts in the same row.

10. The electrical connector of claim 8, wherein: the lower end of the grounding pin is flush with the lower end of the guide connection part.

11. The electrical connector of claim 8, wherein: the body comprises two side walls extending along the longitudinal direction and a slot positioned between the two side walls, the slot is used for accommodating the butt joint element, and the contact part protrudes into the slot and is used for being connected with the butt joint element in a guide mode.

12. The electrical connector of claim 11, wherein: the terminals are arranged in two rows and are respectively arranged on the two side walls, and the connecting pieces are correspondingly arranged on the two side walls.

13. The electrical connector of claim 11, wherein: each connecting piece is close to the outer side of the corresponding side wall and is relatively far away from the slot.

14. The electrical connector of claim 11, wherein: the body has a fool-proof portion located in the slot, the fool-proof portion is connected with two of the side walls along a transverse direction, and the grounding pin is arranged along the transverse direction corresponding to the fool-proof portion.

15. The electrical connector of claim 8, wherein: the two opposite ends of each connecting piece are connected with only one grounding terminal.