CN216085567U

CN216085567U - Electrical connector

Info

Publication number: CN216085567U
Application number: CN202122384098.3U
Authority: CN
Inventors: 朱跃龙; 王佳文; 龚恒永
Original assignee: Qidong Qianshuo Electronic Co Ltd
Current assignee: Qidong Qianshuo Electronic Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-03-18
Anticipated expiration: 2031-09-29

Abstract

The utility model discloses an electric connector, which comprises an insulating body and a conductive terminal fixed on the insulating body, wherein the insulating body is provided with a top surface extending along the longitudinal direction and two side surfaces positioned at the two transverse sides of the top surface. The conductive terminal is provided with a contact part which is fixedly held on the side surface and an extension part which is at least partially embedded in the top surface, and the contact part is exposed out of the side surface. The conductive terminal comprises a first terminal and a second terminal, the contact parts of the first terminal and the second terminal are respectively positioned on two side surfaces, the first terminal and the second terminal are arranged in a staggered mode in the longitudinal direction, and the first terminal and the second terminal are not overlapped in the transverse direction; that is, there is no signal crosstalk between the first terminal and the second terminal, and only signal crosstalk between conductive terminals in the first terminal or the second terminal needs to be considered. Meanwhile, the first terminals and the second terminals are arranged in a staggered mode in the longitudinal direction, so that the space occupied by the conductive terminals in the longitudinal direction is reduced by half, and the miniaturization of the electric connector is realized.

Description

Electrical connector

Technical Field

The present invention relates to an electrical connector, and more particularly, to a miniaturized electrical connector.

Background

A Board to Board Connector (BTB) is a Connector often used in electronic devices (e.g., mobile phones, tablet computers, etc.), and is used to mechanically and electrically interconnect a main Board of the electronic device and modules (e.g., a display module, a touch module, a camera module, etc.). The board-to-board connector comprises a plug connector and a socket connector which are matched with each other, and the plug connector and the socket connector respectively comprise an insulating body extending along the longitudinal direction, conductive terminals fixed on the insulating body and protective supports positioned at two longitudinal ends of the insulating body. At present, a plug connector and a socket connector of the board-to-board connector both adopt a double-row terminal structure, that is, two rows of conductive terminals are arranged on an insulating body in the existing electric connector, and the two rows of conductive terminals are arranged opposite to each other, so that the electric connector is stable in structure and good through-current capacity of the electric connector is ensured. Meanwhile, a certain distance needs to be reserved between the conductive terminals to prevent signal crosstalk between the conductive terminals, so that the double-row terminal structure of the electric connector needs to occupy a larger space on the insulating body to solve the problems. However, with the trend of miniaturization of the electrical connector, the dual-row terminal structure of the conventional electrical connector cannot meet the requirement of smaller and smaller devices, i.e. cannot meet the requirement of marketization.

It is therefore desirable to provide a new electrical connector that overcomes the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a miniaturized electric connector which is miniaturized and avoids the problem of signal crosstalk between conductive terminals.

In order to achieve the purpose, the utility model adopts the following technical scheme: an electric connector comprises an insulating body and a conductive terminal fixed on the insulating body, wherein the insulating body is provided with a top surface extending along the longitudinal direction and two side surfaces positioned at the two transverse sides of the top surface. The conductive terminal is provided with a contact part which is fixedly held on the side surface and an extension part which is at least partially embedded in the top surface, and the contact part is exposed out of the side surface. The conductive terminal comprises a first terminal and a second terminal, the contact parts of the first terminal and the second terminal are respectively positioned on the two side surfaces, the first terminal and the second terminal are arranged in a staggered mode in the longitudinal direction, and the first terminal and the second terminal are not overlapped in the transverse direction.

In a preferred embodiment, the contact portions extend in a vertical direction perpendicular to the longitudinal direction and the lateral direction, and the contact portions of the first terminal and the second terminal are exposed on both the side surfaces and are disposed at intervals in the longitudinal direction, respectively.

In a preferred embodiment, the extension portion extends in a lateral direction from a tip of the contact portion, and the extension portions of the first and second terminals do not overlap in the lateral direction.

In a preferred embodiment, the insulating body is provided with a recessed portion recessed inward from the top surface, and the extending portion is located in the recessed portion and provided with a buried portion extending downward into the insulating body from a distal end.

In a preferred embodiment, the electrical connector comprises a protective bracket at both longitudinal ends of the insulating body, and the protective bracket is provided with a coating part coating the end part of the insulating body.

In a preferred embodiment, the insulating body is provided with end faces at two longitudinal ends, and the covering part at least partially covers the top face and the side face of the insulating body and completely covers the end faces of the insulating body.

In a preferred embodiment, the covering portion is provided with a top surface covering portion covering the top surface, side surface covering portions extending from both lateral sides of the top surface covering portion in a downward bending manner, and end surface covering portions extending from the longitudinal outer sides of the top surface covering portion in a downward bending manner, the side surface covering portions at least partially cover the side surfaces, and the end surface covering portions cover the end surfaces.

In a preferred embodiment, the top surface shielding portion, the side surface shielding portion and the end surface shielding portion together enclose a seamless corner shielding portion, and the corner shielding portion is of a full-wrapping structure and covers the top surface and the end surface at the lateral top corner of the insulating body.

In a preferred embodiment, the protection bracket is provided with a welding pin extending outwards from the bottom of the side shielding part, the conductive terminal is provided with a welding part extending outwards from the bottom end of the contact part to the insulating body, and the welding pin and the welding part are located in the same plane.

In a preferred embodiment, the protection bracket is made of a metal piece by a drawing molding method, the top shielding portion does not exceed the top surface of the insulating body, and the side shielding portion does not exceed the side surface of the insulating body.

Compared with the prior art, the utility model has the following beneficial effects: the conductive terminal comprises a first terminal and a second terminal, the contact parts of the first terminal and the second terminal are respectively positioned on two side surfaces, the first terminal and the second terminal are arranged in a staggered mode in the longitudinal direction, and the first terminal and the second terminal are not overlapped in the transverse direction; that is, there is no signal crosstalk between the first terminal and the second terminal, and only signal crosstalk between conductive terminals in the first terminal or the second terminal needs to be considered. Meanwhile, the first terminals and the second terminals are arranged in a staggered mode in the longitudinal direction, so that the space occupied by the conductive terminals in the longitudinal direction is reduced by half, and the miniaturization of the electric connector is realized.

Drawings

Fig. 1 is a perspective view of an electrical connector according to a preferred embodiment of the present invention.

Fig. 2 is an exploded view of the electrical connector shown in fig. 1.

Fig. 3 is a top view of the electrical connector shown in fig. 1.

Fig. 4 is a perspective view of the docking connector in the preferred embodiment of the utility model.

Fig. 5 is an exploded schematic view of the docking connector shown in fig. 4.

Fig. 6 is a bottom view of the docking cradle in the docking connector shown in fig. 5.

Fig. 7 is a cross-sectional view of a board-to-board connector in a preferred embodiment of the utility model.

Fig. 8 is a cross-sectional view of the board-to-board connector shown in fig. 7 in another direction.

Detailed Description

Referring to fig. 1 to 3, an electrical connector 100 for mounting on a circuit board (not shown) and mating with a mating connector 200 is disclosed in the preferred embodiment of the present invention. The electrical connector 100 includes an insulative housing 10 extending along a longitudinal direction, conductive terminals 20 fixed on the insulative housing 10, and protection brackets 30 at two longitudinal ends of the insulative housing 10. The insulating body 10 is provided with a top surface 11 extending along the longitudinal direction, two side surfaces 12 located at two lateral sides of the top surface 11, and two end surfaces 13 located at two longitudinal ends of the top surface 11, and the protection bracket 30 is fixed at the two end surfaces 13 of the insulating body 10.

The conductive terminal 20 is provided with a contact portion 21 extending vertically perpendicular to the longitudinal direction and the transverse direction, an extension portion 22 extending horizontally from the top end of the contact portion 21, and a soldering portion 23 extending outward from the bottom end of the contact portion 21 to the insulating housing 10, wherein the contact portion 21 is fixed on the side surface 12 of the insulating housing 10 and exposed out of the side surface 12 to contact with the mating portion 52 of the mating terminal 50 of the mating connector 200. The extending portion 22 is at least partially embedded in the top surface 11 and does not extend upward beyond the top surface 11, the insulating body 10 is provided with a recessed portion 14 recessed from the top surface into the top surface 11, the extending portion 22 is located in the recessed portion 14 and is provided with an embedded portion 24 extending downward into the insulating body 10 from the end thereof, so as to further fix the conductive terminal 20 on the insulating body 10.

In the present embodiment, the conductive terminal 20 includes a first terminal 201 and a second terminal 202 having contact portions 21 respectively located on two side surfaces 12, the first terminal 201 and the second terminal 2021 are staggered in the longitudinal direction, and the first terminal 201 and the second terminal 202 do not overlap in the lateral direction. Specifically, the contact portions 21 of the first terminal 201 and the second terminal 202 are exposed on the two side surfaces 12 and are arranged at intervals in the longitudinal direction, and the extension portions 22 of the first terminal 201 and the second terminal 202 do not overlap in the transverse direction.

I.e. there is no signal crosstalk between the first terminal 201 and the second terminal 202, only signal crosstalk between the conductive terminals 20 in the first terminal 201 or the second terminal 202 needs to be considered. Meanwhile, the first terminals 201 and the second terminals 202 are staggered in the longitudinal direction, and compared with the conductive terminals in the conventional connector, the space occupied by the conductive terminals 20 in the longitudinal direction on the insulating body 10 is reduced by half, thereby realizing the miniaturization of the electrical connector 100.

The protection bracket 30 is made of metal parts by drawing and forming, so that the strength of the insulation body 10 is improved, and the damage to the insulation body 10 when the electric connector 100 is plugged and unplugged is avoided. The protection bracket 30 is provided with a coating portion (not numbered) coating the end portion of the insulation body 10, and the coating portion at least partially coats the top surface 11 and the side surface 12 of the insulation body 10 and completely coats the end surface 13 of the insulation body 10. Specifically, the covering portion is provided with a top surface shielding portion 31 covering the top surface of the base plate 11, side surface shielding portions 32 extending from both lateral sides of the top surface shielding portion 31 in a downward bending manner, and end surface shielding portions 33 extending from the longitudinal outer sides of the top surface shielding portion 31 in a downward bending manner, wherein at least a part of the side surface shielding portions 32 covers the side surfaces 12, and the end surface shielding portions 33 cover the end surfaces 13.

The top surface shielding part 31, the side surface shielding part 32 and the end surface shielding part 33 are arranged to enclose together to form a seamless corner shielding part 34, the corner shielding part 34 is of a full-wrapping structure and covers the top surface 11 and the end surface 13 at the transverse top corner of the insulating body 10, so that the full-wrapping structure of the top corner of the insulating body 10 is realized, that is, the top corner protection of the end part of the electric connector 100 is realized, and the insulating body 10 is prevented from being damaged.

Meanwhile, the top shielding part 31 does not exceed the top surface 11 of the insulating body 10, and the side shielding part 32 does not exceed the side surface 12 of the insulating body 10, the protection bracket 30 is provided with a soldering pin 35 extending outwards from the bottom of the side shielding part 32, and the soldering pin 35 and the soldering part 23 are located in the same plane and can be fixedly mounted on the circuit board. As shown in fig. 7, the protection bracket 30 further has a fixing portion 36 extending from the longitudinal inner side of the top shielding portion 31 to be bent downward, and the fixing portion 36 is embedded in the insulation body 10 to enhance the fixed connection between the protection bracket 30 and the insulation body 10.

In the utility model, the conductive terminal 20 comprises a first terminal 201 and a second terminal 202, the contact portions 21 of which are respectively located on the two side surfaces 12, the first terminal 201 and the second terminal 202 are arranged in a staggered manner in the longitudinal direction, and the first terminal 201 and the second terminal 202 are not overlapped in the transverse direction; that is, there is no signal crosstalk between the first terminal 201 and the second terminal 202, only the signal crosstalk between the conductive terminals 20 in the first terminal 201 or the second terminal 202 needs to be considered. Meanwhile, the first terminals 201 and the second terminals 202 are staggered in the longitudinal direction, so that the space occupied by the conductive terminals 20 in the longitudinal direction is reduced by half, and the miniaturization of the electrical connector 100 is realized.

Referring to fig. 4 to 6, a docking connector 200 according to a preferred embodiment of the present invention is disclosed, wherein the docking connector 200 includes a docking body 40 extending along a longitudinal direction, a docking terminal 50 fixed on the docking body 40, and docking brackets 60 located at two longitudinal ends of the docking body 40. The docking body 40 is provided with two side walls 41 extending in the longitudinal direction and two end walls 42 connected to the two side walls 41. The two side walls 41 and the two end walls 42 together define a slot 43, said slot 43 being adapted to allow the insertion of the electrical connector 100.

As shown in fig. 8, the mating terminal 50 has a holding portion 51 held in one side wall 41, a mating portion 52 located in the other side wall 41, and a connecting portion 53 connecting the holding portion 51 and the mating portion 52. The mating portion 52 extends into the slot 43 to contact the contact portion 21 of the conductive terminal 20, thereby establishing electrical signal continuity. The connecting portion 53 is located below the slot 43 and extends outward to the docking body 40.

The docking bracket 60 is assembled and fixed on the end wall 42 of the docking body 40 from top to bottom, so as to improve the overall strength of the docking connector 200. As shown in fig. 6, the protective bracket 30 is provided with an end wall shielding piece 61 covering the end wall 42 and a side wall shielding piece 62 at least partially covering the side wall 41, and the side wall shielding pieces 62 are connected to both lateral ends of the end wall shielding piece 61.

The end wall shielding sheet 61 includes an end wall top plate portion 611 covering the top surface of the end wall 42, an end wall inner wall portion 612 bent from the inner side edge of the end wall top plate portion 611 and covering the inner wall surface of the end wall 42, and an end wall outer wall portion 613 bent from the outer side edge of the end wall top plate portion 611 and covering the outer wall surface of the end wall 42, and the end wall outer wall portion 613 includes elastic arms 614 extending from both lateral ends thereof along the inner wall surface of the side wall 41. The resilient arm 614 has a protrusion 615 protruding into the slot 43 to ensure the passage of large current when the mating connector 200 is plugged.

The end wall 42 is provided with a slot 46 extending longitudinally through the end wall 42 and communicating with the slot 43, and the resilient arm 614 extends from the outer side of the end wall 42 through the slot 46 and into the slot 43. The spring arm 614 extends in the longitudinal direction in the region of the side wall 41, and a gap is formed between the spring arm 614 and the inner wall surface of the side wall 41. The side wall 41 of the docking body 40 is provided with a relief groove 44 corresponding to the elastic arm 614, and the relief groove 44 is formed by recessing from the inner wall surface of the side wall 41, so that the elastic arm 614 has a sufficient movement space when elastically deformed.

In the present invention, when the electrical connector 100 is mated with the mating connector 200, the elastic arm 614 is mated with the protection bracket 30 of the electrical connector 100 to realize a stable elastic contact, so as to realize a large current conduction function. The elastic arm 614 of the docking bracket 60 has a longer arm, so that the problem that the elastic arm 614 is greatly degraded after the docking connector 200 is plugged is solved while the stable assembly of the docking connector 200 is ensured, and the docking connector 200 is stably and reliably contacted in use.

The side wall shielding piece 62 of the docking bracket 60 is provided with side wall top plate portions 621 extending from both ends of the end wall top plate portion 611 in the longitudinal direction, and the side wall top plate portions 621 at least partially cover the top surfaces of the side walls 41. The side wall top plate 621 covers at least a part of the elastic arm 614, so as to protect the elastic arm 614 and limit the elastic arm 614. The sidewall shielding plate 62 further has a sidewall outer wall portion 622 bent downward from the outer side edge of the sidewall top plate 621, and the sidewall outer wall portion 622 is fixedly mounted on a circuit board (not shown) electrically connected to the docking connector 200.

The sidewall outer wall 622 is snapped onto the outer wall of the sidewall 41 to fix the docking bracket 60 to the docking body 40. The docking body 40 is provided with a locking groove 45 located on the outer wall surface of the sidewall 41, and the sidewall outer wall portion 622 is accommodated in the locking groove 45 and provided with an barb (not numbered) engaged with the wall surface of the locking groove 45, so as to enhance the stability of the docking bracket 60 fixed to the docking body 40.

The outer surface of the end wall outer wall portion 613 of the end wall shielding piece 61 does not exceed the outer wall surface of the end wall 42, and the outer surface of the side wall outer wall portion 622 of the side wall shielding piece 62 does not exceed the outer wall surface of the side wall 41, so that the docking bracket 60 does not increase the volume of the entire docking connector 200 while increasing the strength of the docking body 40 and realizing conduction of a large current.

In summary, the above is only a preferred embodiment of the present invention, and should not be limited to the scope of the present invention, and all the equivalent changes and modifications made by the claims and the specification of the present invention should still fall within the scope of the present invention.

Claims

1. An electric connector comprises an insulating body and a conductive terminal fixed on the insulating body, wherein the insulating body is provided with a top surface extending along the longitudinal direction and two side surfaces positioned at two transverse sides of the top surface; the method is characterized in that: the conductive terminal comprises a first terminal and a second terminal, the contact parts of the first terminal and the second terminal are respectively positioned on the two side surfaces, the first terminal and the second terminal are arranged in a staggered mode in the longitudinal direction, and the first terminal and the second terminal are not overlapped in the transverse direction.

2. The electrical connector of claim 1, wherein: the contact portions extend in a vertical direction perpendicular to the longitudinal direction and the lateral direction, and the contact portions of the first terminal and the second terminal are exposed on the two side surfaces and are arranged at intervals in the longitudinal direction.

3. The electrical connector of claim 2, wherein: the extending portion extends in a lateral direction from a tip of the contact portion, and the extending portions of the first and second terminals do not overlap in the lateral direction.

4. The electrical connector of claim 3, wherein: the insulating body is provided with a recessed part from the top surface, wherein the recessed part is recessed inwards, and the extension part is positioned in the recessed part and is provided with a buried part extending into the insulating body from the tail end downwards.

5. The electrical connector of claim 2, wherein: the electric connector comprises protection supports positioned at the two longitudinal ends of the insulating body, and the protection supports are provided with coating parts for coating the end parts of the insulating body.

6. The electrical connector of claim 5, wherein: the insulating body is provided with end faces positioned at two longitudinal ends, and the coating part at least partially coats the top face and the side face of the insulating body and completely coats the end faces of the insulating body.

7. The electrical connector of claim 6, wherein: the coating part is provided with a top surface shielding part covering the top surface, side surface shielding parts bending downwards and extending from the two transverse sides of the top surface shielding part, and end surface shielding parts bending downwards and extending from the longitudinal outer sides of the top surface shielding part, at least part of the side surface shielding parts cover the side surfaces, and the end surface shielding parts cover the end surfaces.

8. The electrical connector of claim 7, wherein: the top surface shielding part, the side surface shielding part and the end surface shielding part are arranged together to form a seamless corner shielding part, and the corner shielding part is of a full-wrapping structure and covers the top surface and the end surface at the transverse top corner of the insulating body.

9. The electrical connector of claim 7, wherein: the protection support is provided with a welding pin extending outwards from the bottom of the side shielding part, the conductive terminal is provided with a welding part extending outwards from the bottom end of the contact part to the insulating body, and the welding pin and the welding part are located in the same plane.

10. The electrical connector of claim 7, wherein: the protective bracket is made of a metal piece in a drawing forming mode, the top surface shielding part does not exceed the top surface of the insulating body, and the side surface shielding part does not exceed the side surface of the insulating body.