CN213845571U

CN213845571U - Electrical connector

Info

Publication number: CN213845571U
Application number: CN202022632400.8U
Authority: CN
Inventors: 尹海港; 朱昭晖; 朱跃龙
Original assignee: Qidong Qianshuo Electronic Co Ltd
Current assignee: Qidong Qianshuo Electronic Co Ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-07-30
Anticipated expiration: 2030-11-13

Abstract

The utility model discloses an electric connector, including insulator, fixing in insulator's terminal and be located the protective cradle at insulator vertical both ends, insulator is equipped with along the both sides wall of longitudinal extension's both ends wall and connection both sides wall. The protective bracket comprises an end wall reinforcing sheet covering the end wall and a side wall reinforcing sheet covering the side wall, so that the strength of the electric connector is improved. Meanwhile, the electric connector comprises an elastic sheet fixed on the insulating body, the elastic sheet is provided with a fixed part fixed on the end wall, an elastic arm longitudinally extending from the fixed part along the inner wall surface of the side wall and a welding part extending from the fixed part to the insulating body, and when the electric connector is matched with the butting connector, the elastic arm is contacted with the butting protection bracket, so that the shortest through-current path is formed, namely the through-current path of the electric connector is reduced while the strength of the electric connector is ensured, and the through-current capacity of the electric connector is improved.

Description

Electrical connector

Technical Field

The present invention relates to an electrical connector, and more particularly to an electrical connector with a metal protection bracket.

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.). Each electric connector can increase the protective cradle in order to promote self intensity in current board to board connector to the emergence of the abnormal conditions such as assembly not in place appears because of the damage of the plastic body when pegging graft. Meanwhile, with the development of the rapid charging technology, users have made higher demands on the cruising ability of the electronic device and the shortening of the charging time of the battery. In order to enable a fast charging of the battery, devices on the fast charging path are required, for example: batteries, board-to-board connectors, chips, and the like can all carry the transmission of large currents. For a board-to-board connector, in order to improve its own quick charging capability, it is necessary to reduce the transmission impedance of the board-to-board connector. Therefore, how to improve the current flow capacity of the electrical connector while ensuring the strength of the electrical connector becomes a technical problem to be solved urgently by those skilled in the art.

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

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric connector with protective cradle, this protective cradle have been guaranteed to compromise when electric connector bulk strength and have good through-flow capacity.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an electric connector comprises an insulating body extending along the longitudinal direction, terminals fixed on the insulating body and protective supports located at the two longitudinal ends of the insulating body, wherein the insulating body is provided with two side walls extending along the longitudinal direction and two end walls connecting the two side walls, the protective supports are fixed on the end walls and comprise end wall reinforcing sheets covering the end walls and side wall reinforcing sheets at least partially covering the side walls, and the side wall reinforcing sheets are connected to the two transverse ends of the end wall reinforcing sheets. The electric connector also comprises an elastic sheet fixed on the insulating body, the elastic sheet is provided with a fixed part fixed on the end wall, an elastic arm longitudinally extending from the fixed part along the inner wall surface of the side wall and a welding part extending from the fixed part out of the insulating body, and the elastic arm is positioned below the side wall reinforcing sheet.

In a preferred embodiment, the two side walls and the two end walls enclose to form slots, the side walls are provided with accommodating grooves which are recessed inwards from the inner wall surface, the accommodating grooves are communicated with the slots, and the elastic arms are bent upwards from the transverse outer sides of the fixing parts and extend into the accommodating grooves along the longitudinal direction.

In a preferred embodiment, the end wall reinforcing sheet is provided with an end wall top plate portion covering the top surface of the end wall and an end wall inner plate portion extending from the longitudinal inner side of the end wall top plate portion in a bent manner, the end wall inner plate portion is covered on the inner wall surface of the end wall, the side wall reinforcing sheet is provided with a side wall top plate portion covering the top surface of the side wall, and the side wall top plate portion is connected to both lateral ends of the end wall top plate portion.

In a preferred embodiment, the end wall reinforcing sheet is further provided with an end wall side plate portion extending from the longitudinal outer side of the end wall top plate portion in a downward bending manner, and a welding leg extending from the bottom edge of the end wall side plate portion in the longitudinal direction to the insulating body, the end wall side plate portion is embedded in the end wall, and the welding portion extends from the longitudinal outer side of the fixing portion to the insulating body and is provided at both lateral sides of the welding leg.

In a preferred embodiment, the insulating body is provided with a central island portion located in the insertion groove, the protective bracket includes an island portion reinforcing piece at least partially covering the island portion, the island portion reinforcing piece is connected to the end wall inner plate portion, and the elastic arms of the elastic piece are respectively located on both lateral sides of the island portion reinforcing piece.

In a preferred embodiment, the island reinforcing plate is provided with an island top plate at least partially covering the top surface of the island, an island end plate extending from the longitudinal outer side of the island top plate and bent downward, and a connecting portion exposed in the slot, the island end plate covers the longitudinal end surface of the island, and the longitudinal ends of the connecting portion are connected to the bottom edges of the island end plate and the end wall inner plate, respectively.

In a preferred embodiment, the side wall reinforcing plate is provided with a side wall side plate portion extending from the lateral outer side of the side wall top plate portion in a downward bending manner, and a welding leg portion extending from the bottom edge of the side wall side plate portion in the lateral direction to the insulating body, and the side wall side plate portion is embedded in the side wall.

In a preferred embodiment, the side wall reinforcing piece is further provided with an embedded portion bent downward from a longitudinal end of the side wall top plate portion, the embedded portion extending into the side wall and being located in front of the elastic arm in the longitudinal direction.

In a preferred embodiment, the side wall top plate portion is connected to both lateral ends of the end wall top plate portion to form a top surface shielding portion, the top surface shielding portion includes a horizontal portion disposed in parallel with the top surface of the insulating body and an inclined portion extending obliquely downward from an inner side edge of the horizontal portion, and the inclined portion is formed by drawing from the inner side edge of the horizontal portion.

In a preferred embodiment, the protection bracket is integrally formed on the insulating body, and the elastic piece is assembled into the insulating body from the longitudinal outer side of the end wall.

Compared with the prior art, the utility model discloses following beneficial effect has: the protective bracket comprises an end wall reinforcing sheet covering the end wall and a side wall reinforcing sheet at least partially covering the side wall, so that the strength of the electric connector is improved. Meanwhile, the electric connector comprises an elastic sheet fixed on the insulating body, the elastic sheet is provided with a fixed part fixed on the end wall, an elastic arm longitudinally extending from the fixed part along the inner wall surface of the side wall and a welding part extending from the fixed part to the insulating body, and the elastic arm is positioned below the side wall reinforcing sheet; when the electric connector is matched with the butting connector, the elastic arm of the elastic sheet is contacted with the butting protection bracket, so that a shortest through-current path is formed between the electric connector and the butting protection bracket, namely, the through-current path of the electric connector is reduced while the strength of the electric connector is ensured, the overall impedance of the electric connector is smaller, and the improvement of the through-current capacity of the electric connector is facilitated.

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 combination of the protective bracket and the elastic sheet in the electrical connector shown in fig. 2.

Fig. 5 is a perspective view of another angle of the combination of the protective bracket and the elastic sheet shown in fig. 4.

Fig. 6 is an exploded view of the protective bracket and the elastic sheet shown in fig. 4.

Fig. 7 is an exploded view of the protective bracket of fig. 6 from another angle with respect to the flexible sheet.

Fig. 8 is a schematic perspective view of the protective bracket of fig. 6 from another angle.

Detailed Description

Referring to fig. 1 to 3, a preferred embodiment of the present invention discloses an electrical connector 100, wherein the electrical connector 100 includes an insulative housing 10 extending along a longitudinal direction, a terminal 20 fixed on the insulative housing 10, and a protection bracket 30 located at two longitudinal ends of the insulative housing 10. The insulating body 10 is provided with a central island portion 11 extending in a longitudinal direction, two side walls 12 located on both lateral sides of the island portion 11, and two end walls 13 connected to the two side walls 12. The island 11, the two side walls 12 and the two end walls 13 together define a slot 14, i.e. the island 11 is located in the slot 14, and the slot 14 is used for inserting a butt connector (not shown).

The protection bracket 30 is fixed on the end wall 13 of the insulating body 10 to improve the overall strength of the electrical connector 100. As shown in fig. 4 and 8, the protective bracket 30 is provided with an end wall reinforcing plate 40 covering the end wall 13, a side wall reinforcing plate 50 at least partially covering the side wall 12, and an island reinforcing plate 60 at least partially covering the island 11, wherein the side wall reinforcing plate 50 is connected to both lateral ends of the end wall reinforcing plate 40.

The end wall reinforcing sheet 40 includes an end wall top plate 41 covering the top surface of the end wall 13, an end wall inner plate 42 bent downward from the longitudinal inner side of the end wall top plate 41, an end wall side plate 43 bent downward from the longitudinal outer side of the end wall top plate 41, and a welding leg 44 extending in the longitudinal direction from the bottom edge of the end wall side plate 43 to the insulating body 10. The end wall inner plate 42 is shielded from the inner wall surface of the end wall 13, and the end wall side plate 43 is embedded in the end wall 13, so as to improve the strength of the end wall 13 of the insulating body 10. The soldering portion 44 is used for being soldered to a circuit board (not shown), so as to increase the current conducting capability of the electrical connector 100.

The side wall reinforcing sheet 50 is provided with a side wall top plate 51 covering the top surface of the side wall 12, an embedded portion 52 bent downward from the longitudinal end of the side wall top plate 51, a side wall side plate 53 bent downward and extending from the lateral outer side of the side wall top plate 51, and a welding leg 54 extending from the bottom edge of the side wall side plate 53 in the lateral direction of the insulating body 10. The side wall top plate portions 51 are connected to both lateral ends of the end wall top plate portion 41 so that the side wall reinforcing pieces 50 are formed integrally with the end wall reinforcing pieces 40. The sidewall side plate 53 and the embedded portion 52 are embedded in the sidewall 12 to enhance the strength of the sidewall 12 of the insulating body 10. The solder leg 54 is used to solder and fix on the circuit board, thereby increasing the current conducting capability of the electrical connector 100.

The island reinforcing piece 60 is connected to the end wall inner plate portion 42 and provided with an island top plate portion 61 at least partially covering the top surface of the island 11, an island end plate portion 62 extending bent downward from the outer longitudinal side of the island top plate portion 61, and a connecting portion 63 exposed in the slot 14. The island end plate 62 covers the longitudinal end face of the island 11 to enhance the strength of the island 11 of the insulating body 10. Both longitudinal ends of the connecting portion 63 are connected to the bottom edges of the island end plate portion 62 and the end wall inner plate portion 42, respectively, so that the island reinforcing plate 60 and the end wall reinforcing plate 40 are formed integrally, whereby the protecting bracket 30 is an integral member.

As shown in fig. 1, in the present embodiment, the end wall top plate portion 41 of the end wall reinforcing sheet 40 protrudes upward beyond the top surface of the end wall 13, and the side wall top plate portion 51 of the side wall reinforcing sheet 50 protrudes upward beyond the top surface of the side wall 13, so that the protection bracket 30 can contact and guide the insulation body 10 and the docking protection bracket before the insulation body 10 contacts the insulation body 10 while increasing the strength of the insulation body 10 and realizing conduction of a large current, thereby avoiding the problem that the side wall 12 and the end wall 13 of the insulation body 10 are damaged due to the docking protection bracket contacting the insulation body 10.

In this embodiment, the side wall top plate 51 is connected to both lateral ends of the end wall top plate 41 to form the top surface shielding portion 31, the top surface shielding portion 31 includes a horizontal portion 32 disposed parallel to the top surface of the insulating body 10 and an inclined portion 33 extending downward from an inner side edge of the horizontal portion 32, and the inclined portion 33 is formed by drawing from the inner side edge of the horizontal portion 32. The inclined portion 33 is used for guiding the insertion of the mating connector when the electrical connector 100 is plugged with the mating connector. After the inclined portion 33 is formed by drawing, the material of the inclined portion 33 is hardened by cold work hardening, so that the strength of the inclined portion 33 is increased and the guiding effect is obviously improved, that is, the protective bracket 30 has good guiding performance while ensuring the overall strength. The inclined portion 33 can be made of a thicker material on the premise of ensuring that the overall volume of the electrical connector 100 is not increased, so that the forward force and the current conduction force of the protective bracket 30 are improved.

Referring to fig. 2, the electrical connector 100 further includes a pair of elastic pieces 70 fixed to the insulating housing 10, each elastic piece 70 is provided with a fixing portion 71 fixed to the end wall 13, an elastic arm 72 extending longitudinally from the fixing portion 71 along the inner wall surface of the side wall 12, and a soldering portion 73 extending from the fixing portion 71 to the insulating housing 10, the elastic arms 72 are respectively located at two lateral sides of the island reinforcing piece 60, and the soldering portion 73 is located at two lateral sides of the soldering pin 44. The side wall 12 is provided with an accommodating groove 15 which is recessed inwards from the inner wall surface, the accommodating groove 15 is communicated with the insertion groove 14, and the elastic arm 72 is bent upwards from the transverse outer side of the fixing part 71 and extends into the accommodating groove 15 along the longitudinal direction.

As shown in fig. 4 and 5, the elastic arm 72 is located below the side wall reinforcing sheet 50, so as to protect the elastic arm 72. Meanwhile, the embedded portion 52 extends into the side wall 12 and is located in front of the elastic arm 72 in the longitudinal direction, so that the elastic arm 72 can be limited. The soldering portion 73 extends from the longitudinal outer side of the fixing portion 71 to the insulating body 10 and is used for being soldered to the circuit board, thereby increasing the current conducting capability of the electrical connector 100.

When the electrical connector 100 is mated with a mating connector, the mating protection bracket first contacts the top shielding portion 31 of the protection bracket 30, and is guided into the slot 14 by the inclined portion 33 of the top shielding portion 31; the final docking protection bracket abuts against the resilient arms 72 of the resilient tab 70. The elastic arm 72 of the elastic piece 70 contacts with the butting protection bracket of the butting connector, so that a shortest through-current path is formed among the butting connector, the electrical connector 100 and the circuit board, that is, the through-current path of the electrical connector 100 is reduced while the strength of the electrical connector 100 is ensured, so that the overall impedance of the electrical connector 100 is smaller, and the improvement of the through-current capability of the electrical connector 100 is facilitated.

The protection bracket 30 and the elastic piece 70 have functions of improving the strength of the electrical connector 100 and realizing the current capacity, so that the elastic piece 70 can be regarded as a part of the protection bracket 30. In this embodiment, the elastic piece 70 and the protection bracket 30 are separately provided, and in this case, the elastic piece 70 and the protection bracket 30 may have different assembling manners, for example: the protection bracket 30 is integrally formed on the insulating housing 10, and the elastic piece 70 is assembled into the insulating housing 10 from the longitudinal outer side of the end wall 13. In other embodiments, the resilient tab 70 may be attached to the protective bracket 30 to form a unitary body, with only one assembly.

In the present invention, the protection bracket 30 includes the end wall reinforcing sheet 40 covering the end wall 13 and the side wall reinforcing sheet 50 at least partially covering the side wall 12, thereby improving the strength of the electrical connector 100. Meanwhile, the electrical connector 100 includes a pair of elastic pieces 70 fixed to the insulating housing 10, each elastic piece 70 is provided with a fixed portion 71 fixed to the end wall 13, an elastic arm 72 extending longitudinally from the fixed portion 71 along the inner wall surface of the side wall 12, and a welding portion 73 extending from the fixed portion 71 to the insulating housing 10, and the elastic arm 72 is located below the side wall reinforcing piece 50; when the electrical connector 100 is mated with a mating connector, the elastic arm 72 of the elastic piece 70 contacts with the mating protection bracket, so that a shortest through-current path is formed therebetween, that is, the through-current path of the electrical connector 100 is reduced while the strength of the electrical connector 100 is ensured, so that the overall impedance of the electrical connector 100 is small, and the improvement of the through-current capability of the electrical connector 100 is facilitated.

In summary, the above is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the content of the specification should still belong to the scope covered by the present invention.

Claims

1. An electric connector comprises an insulating body extending along the longitudinal direction, terminals fixed on the insulating body and protective supports positioned at the two longitudinal ends of the insulating body, wherein the insulating body is provided with two side walls extending along the longitudinal direction and two end walls connecting the two side walls; the method is characterized in that: the electric connector also comprises an elastic sheet fixed on the insulating body, the elastic sheet is provided with a fixed part fixed on the end wall, an elastic arm longitudinally extending from the fixed part along the inner wall surface of the side wall and a welding part extending from the fixed part out of the insulating body, and the elastic arm is positioned below the side wall reinforcing sheet.

2. The electrical connector of claim 1, wherein: the side walls and the end walls are surrounded to form slots, the side walls are provided with accommodating grooves which are inwards sunken from the inner wall surface, the accommodating grooves are communicated with the slots, and the elastic arms are upwards bent from the transverse outer sides of the fixing parts and extend into the accommodating grooves along the longitudinal direction.

3. The electrical connector of claim 2, wherein: the end wall reinforcing sheet is provided with an end wall top plate part covering the top surface of the end wall and an end wall inner plate part bending and extending downwards from the longitudinal inner side of the end wall top plate part, the end wall inner plate part is covered on the inner wall surface of the end wall, the side wall reinforcing sheet is provided with a side wall top plate part covering the top surface of the side wall, and the side wall top plate part is connected to the two transverse ends of the end wall top plate part.

4. The electrical connector of claim 3, wherein: the end wall reinforcing sheet is further provided with an end wall side plate portion extending from the longitudinal outer side of the end wall top plate portion in a downward bending mode and welding feet extending from the bottom edge of the end wall side plate portion in the longitudinal direction to the insulation body, the end wall side plate portion is embedded in the end wall, and the welding parts extend out of the insulation body from the longitudinal outer side of the fixing portion and are arranged on two transverse sides of the welding feet.

5. The electrical connector of claim 3, wherein: the insulating body is provided with a central island portion located in the slot, the protective support comprises an island portion reinforcing sheet at least partially covering the island portion, the island portion reinforcing sheet is connected to the end wall inner plate portion, and the elastic arms of the elastic sheet are respectively located on two transverse sides of the island portion reinforcing sheet.

6. The electrical connector of claim 5, wherein: the island reinforcing plate is provided with at least part of an island top plate covering the top surface of the island, an island end plate extending from the longitudinal outer side of the island top plate in a downward bending mode and a connecting part exposed in the slot, the island end plate covers the longitudinal end face of the island, and the longitudinal two ends of the connecting part are connected to the island end plate and the bottom edge of the end wall inner plate respectively.

7. The electrical connector of claim 3, wherein: the side wall reinforcing sheet is provided with a side wall side plate portion extending from the transverse outer side of the side wall top plate portion in a downward bending mode and a welding foot portion extending from the bottom edge of the side wall side plate portion in the transverse direction to the insulation body, and the side wall side plate portion is embedded in the side wall.

8. The electrical connector of claim 7, wherein: the side wall reinforcing sheet is also provided with an embedded part which is bent downwards from the longitudinal tail end of the side wall top plate part, and the embedded part extends into the side wall and is longitudinally positioned in front of the elastic arm.

9. The electrical connector of claim 3, wherein: the side wall top plate part is connected to the two transverse ends of the end wall top plate part to form a top surface shielding part, the top surface shielding part comprises a horizontal part and an inclined part, the horizontal part is parallel to the top surface of the insulating body, the inclined part extends from the inner side edge of the horizontal part in a downward inclined mode, and the inclined part is formed by drawing from the inner side edge of the horizontal part.

10. The electrical connector of claim 1, wherein: the protective bracket is integrally formed on the insulating body, and the elastic sheet is assembled into the insulating body from the longitudinal outer side of the end wall.