CN213845574U

CN213845574U - Board-to-board connector

Info

Publication number: CN213845574U
Application number: CN202022634103.7U
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 a board to board connector, including insulator, fixing in insulator's terminal and be located the protective cradle at the vertical both ends of insulator, insulator is equipped with along the both ends wall of longitudinal extension's both sides wall and connection both ends wall, and both ends wall encloses with both ends wall and establishes the formation slot. 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 self strength of the board-to-board connector is improved. The end wall reinforcing sheet is provided with an end wall top plate part, an end wall side plate part bent and extended downwards from the longitudinal outer side of the end wall top plate part and elastic arms extending along the inner wall surface of the side wall from the two transverse ends of the end wall side plate part, and the elastic arms are provided with contact parts extending into the slots in an inclined mode; the elastic arm has a longer arm of force, when guaranteeing the board to the stable assembly of board connector, has solved the great problem of the elastic arm of falling of plug back and has served for the board is reliable and stable to the contact of board connector when using.

Description

Board-to-board connector

Technical Field

The utility model relates to a board is to the board connector, especially relates to a board is to board connector with metal protection support.

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 generally comprises a plug and a socket, both the plug and the socket are composed of a plastic body and conductive terminals fixed on the plastic body, the plastic body mainly plays a role in insulating and positioning the conductive terminals, and the conductive terminals mainly play a role in conduction. Generally, the plug and the socket of the existing board-to-board connector can also add a protective bracket to improve the strength of the connector; and the protective bracket of the socket is provided with an elastic sheet for overlarge current, and meanwhile, the socket forms an abdicating space on the side wall of the plastic body of the socket so as to accommodate the elastic sheet of the protective bracket. However, the height of the plastic body of the socket is limited, so that the force arm of the elastic sheet is short, namely the lowering amount of the elastic sheet is too large, and the force attenuation of the elastic sheet is obvious after the socket is plugged and pulled out, so that the contact stability of the board to the board connector is poor; meanwhile, when the board-to-board connector is plugged, the situation that the plug and the socket cannot be plugged normally due to the fact that the plug and the socket are not assembled in place exists.

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

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a board is to board connector with protective cradle, and this protective cradle has guaranteed that the board has compromise when to board connector bulk strength has good contact stability.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the board-to-board 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, and the two side walls and the two end walls are surrounded to form slots. The protective support is fixed on the end wall and comprises an end wall reinforcing sheet covering the end wall and a side wall reinforcing sheet at least partially covering the side wall, and the side wall reinforcing sheet is connected to the two transverse ends of the end wall reinforcing sheet. The end wall reinforcing sheet is provided with an end wall top plate part covering the top surface of the end wall, an end wall side plate part bending and extending downwards from the longitudinal outer side of the end wall top plate part, and elastic arms extending from the inner wall surfaces of the side walls along the transverse two ends of the end wall side plate part, the elastic arms are provided with contact parts extending into the slots in an inclined mode, the side wall reinforcing sheet is provided with a side wall top plate part located above the elastic arms and a guide part extending downwards from the transverse inner side of the side wall top plate part, and the guide part is fixedly held on the inner wall surfaces of the side walls and located in front of the elastic arms in the longitudinal mode.

In a preferred embodiment, the side wall is provided with an accommodating groove which is recessed inwards from the inner wall surface, the accommodating groove is communicated with the insertion groove, and the elastic arm is accommodated in the accommodating groove and extends into the insertion groove.

In a preferred embodiment, the top plate of the side wall at least partially covers the top surface of the side wall and is located above the accommodating groove and the elastic arm, and the top plate of the side wall is provided with a notch corresponding to the contact portion to expose the contact portion.

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 the side wall side plate portion is embedded in the side wall and surrounds the accommodating groove together with the side wall top plate portion.

In a preferred embodiment, the end wall reinforcing piece is provided with a welding leg extending in a longitudinal direction from a bottom edge of the end wall side plate portion, the end wall side plate portion is embedded in the end wall, and the welding leg extends out of the insulating body.

In a preferred embodiment, the end wall reinforcing sheet is provided with an end wall inner plate portion bent and extended downward from a longitudinal inner side of the end wall top plate portion, the end wall inner plate portion is shielded from an inner wall surface of the end 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 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 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 protective bracket is integrally formed on the insulating body, the top plate of the end wall protrudes upward from the top surface of the end wall, the top plate of the side wall protrudes upward from the top surface of the side wall, and the top plate of the island does not protrude beyond the top surface of the island.

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.

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 self strength of the board-to-board connector is improved. The end wall reinforcing sheet is provided with an end wall top plate part covering the top surface of the end wall, an end wall side plate part bent and extended downwards from the longitudinal outer side of the end wall top plate part and elastic arms extending along the inner wall surface of the side wall from the two transverse ends of the end wall side plate part, and the elastic arms are provided with contact parts extending into the slots in an inclined mode; the elastic arm of the protection support has a longer force arm, so that the problem that the elastic arm is greatly damaged after the board-to-board connector is plugged and pulled is solved while the stable assembly of the board-to-board connector is ensured, and the contact of the board-to-board connector in use is stable and reliable. The side wall reinforcing sheet is provided with a side wall top plate part positioned above the elastic arm and a guide part extending downwards from the transverse inner side of the side wall top plate part, and the guide part is fixedly held on the inner wall surface of the side wall and is positioned in front of the elastic arm in the longitudinal direction; the guide part has good guidance performance and is used for guiding the insertion of the butting connector when the board-to-board connector is plugged with the butting connector so as to ensure the normal plugging between the board-to-board connector and the butting connector.

Drawings

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

Fig. 2 is an exploded schematic view of the board-to-board connector shown in fig. 1.

Fig. 3 is a top view of the board-to-board connector shown in fig. 1.

Fig. 4 is a perspective view of a protective bracket in the board-to-board connector shown in fig. 2.

Fig. 5 is a perspective view of the protective bracket of fig. 4 from another angle.

Fig. 6 is a top view of the protective bracket shown in fig. 4.

Detailed Description

Referring to fig. 1 to 3, a board-to-board connector 100 according to a preferred embodiment of the present invention includes an insulative housing 10 extending in a longitudinal direction, 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 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 integrally formed on the end wall 13 of the insulative housing 10 to improve the overall strength of the board-to-board connector 100. As shown in fig. 4 and 6, 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, and the side wall reinforcing plates 50 are connected to both lateral ends of the end wall reinforcing plate 40, thereby improving the strength of the board-to-board connector 100.

The end wall reinforcing sheet 40 is provided with an end wall top plate portion 41 covering the top surface of the end wall 13, an end wall inner plate portion 42 bent downward from the longitudinal inner side of the end wall top plate portion 41, an end wall side plate portion 43 bent downward from the longitudinal outer side of the end wall top plate portion 41, elastic arms 44 extending from both lateral ends of the end wall side plate portion 43 along the inner wall surface of the side wall 12, and welding legs 45 extending in the longitudinal direction from the bottom edge of the end wall side plate portion 43, and the elastic arms 44 are respectively located on both lateral sides of the island reinforcing sheet 60. 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.

Referring to fig. 2, the sidewall 12 is provided with a receiving groove 15 recessed inward from an inner wall surface thereof, the receiving groove 15 is communicated with the slot 14, and the elastic arm 44 is received in the receiving groove 15 and a longitudinal end thereof extends into the slot 14. Meanwhile, the elastic arm 44 is provided with a contact portion 441 extending into the slot 14 in an inclined manner; therefore, the elastic arm 44 of the protection bracket 30 has a longer arm of force, so that the problem that the elastic arm 44 is greatly damaged after the board-to-board connector 100 is plugged and unplugged is solved while the stable assembly of the board-to-board connector 100 is ensured, and the contact of the board-to-board connector 100 in use is stable and reliable. The soldering pins 45 extend out of the insulative housing 10 in a longitudinal direction and are soldered to a circuit board (not shown), thereby increasing the current conduction capability of the board-to-board connector 100.

The side wall reinforcing sheet 50 is provided with a side wall top plate 51 at least partially covering the top surface of the side wall 12, a side wall side plate 52 extending by being bent downward from the lateral outer side of the side wall top plate 51, and a guide portion 53 extending downward from the lateral inner side of the side wall top plate 51. 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 side wall top plate 51 is located above the receiving groove 15 and the elastic arm 44, that is, the elastic arm 44 is located below the side wall top plate 51, so that the elastic arm 44 can be protected. Meanwhile, the sidewall top plate 51 is provided with a notch 54 corresponding to the contact portion 441 to expose the contact portion 441, thereby facilitating the contact of the elastic arm 44 with the docking protection bracket. The side wall side plate portion 52 is embedded in the side wall 12 and surrounds the accommodating groove 15 together with the side wall top plate portion 51, so as to ensure the self-strength of the side wall 12 at the accommodating groove 15. The guide part 53 is fixed on the inner wall surface of the side wall 12 and is positioned in front of the elastic arm 44 in the longitudinal direction; the guiding portion 53 in the present embodiment has good guiding performance, and is used for guiding the insertion of the mating connector when the board-to-board connector 100 is plugged with the mating connector, so as to ensure the normal plugging between the two connectors.

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.

In this embodiment, the top plate portion 41 of the end wall reinforcing sheet 40 protrudes upward from the top surface of the end wall 13, and the top plate portion 51 of the side wall reinforcing sheet 50 protrudes upward from the top surface of the side wall 13, so that the protective bracket 30 can contact and guide the docking protective bracket before the insulating body 10 contacts the docking protective bracket while increasing the strength of the insulating 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 insulating body 10 are damaged due to the docking protective bracket contacting the insulating 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 to guide insertion of the mating connector when the board-to-board connector 100 is mated 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 is provided to ensure that the overall size of the board-to-board connector 100 is not increased, and the protective bracket 30 may be made of a thicker material, so that the forward force and the current conduction force thereof are improved.

The utility model discloses in, protective cradle 30 covers in the end wall reinforcing sheet 40 of end wall 13 and at least part covers in the lateral wall reinforcing sheet 50 of lateral wall 12 including covering, has promoted the self intensity of board to board connector 100 from this. The end wall reinforcing sheet 40 is provided with an end wall top plate part 41 covering the top surface of the end wall 13, an end wall side plate part 43 extending from the longitudinal outer side of the end wall top plate part 41 in a downward bending manner, and elastic arms 44 extending from the two transverse ends of the end wall side plate part 43 along the inner wall surface of the side wall 12, and the elastic arms 44 are provided with contact parts 441 extending into the slots 14 in an inclined manner; the elastic arm 44 of the protection bracket 30 has a longer arm of force, so that the problem that the elastic arm 44 is greatly reduced after the board-to-board connector 100 is plugged and unplugged is solved while the stable assembly of the board-to-board connector 100 is ensured, and the contact of the board-to-board connector 100 in use is stable and reliable. The side wall reinforcing sheet 50 is provided with a side wall top plate part 51 positioned above the elastic arm 44 and a guide part 53 extending downwards from the transverse inner side of the side wall top plate part 41, wherein the guide part 53 is fixedly held on the inner wall surface of the side wall 12 and is positioned in front of the elastic arm 44 in the longitudinal direction; the guiding portion 53 has good guiding performance, and is used for guiding the insertion of the mating connector when the board-to-board connector 100 is plugged with the mating connector, so as to ensure the normal plugging between the two connectors.

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. A board-to-board 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 two side walls and the two end walls are surrounded to form slots, 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 method is characterized in that: the end wall reinforcing sheet is provided with an end wall top plate part covering the top surface of the end wall, an end wall side plate part bending and extending downwards from the longitudinal outer side of the end wall top plate part, and elastic arms extending from the inner wall surfaces of the side walls along the transverse two ends of the end wall side plate part, the elastic arms are provided with contact parts extending into the slots in an inclined mode, the side wall reinforcing sheet is provided with a side wall top plate part located above the elastic arms and a guide part extending downwards from the transverse inner side of the side wall top plate part, and the guide part is fixedly held on the inner wall surfaces of the side walls and located in front of the elastic arms in the longitudinal mode.

2. The board-to-board connector of claim 1, wherein: the side wall is provided with an accommodating groove which is inwards sunken from the inner wall surface, the accommodating groove is communicated with the slot, and the elastic arm is accommodated in the accommodating groove and extends into the slot.

3. The board-to-board connector of claim 2, wherein: the side wall top plate part at least partially covers the top surface of the side wall and is positioned above the accommodating groove and the elastic arm, and the side wall top plate part is provided with a notch corresponding to the contact part so as to expose the contact part.

4. The board-to-board connector of claim 3, wherein: the lateral wall reinforcing sheet is provided with lateral wall lateral plate portions extending from the lateral outer sides of the lateral wall top plate portions in a downward bending mode, and the lateral wall lateral plate portions are buried in the lateral walls and surround the accommodating grooves together with the lateral wall top plate portions.

5. The board-to-board connector of claim 1, wherein: the end wall reinforcing sheet is provided with a welding leg extending longitudinally from the bottom edge of the end wall side plate portion, the end wall side plate portion is embedded in the end wall, and the welding leg extends out of the insulating body.

6. The board-to-board connector of claim 1, wherein: the end wall reinforcing sheet is provided with an end wall inner plate portion which is bent downwards from the longitudinal inner side of the end wall top plate portion, the end wall inner plate portion is shielded on the inner wall surface of the end wall, and the side wall top plate portion is connected to the two transverse ends of the end wall top plate portion.

7. The board-to-board connector of claim 6, 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 are respectively located on two transverse sides of the island portion reinforcing sheet.

8. The board-to-board connector of claim 7, 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.

9. The board-to-board connector of claim 8, wherein: the protective bracket is integrally formed on the insulating body, the top plate of the end wall protrudes upwards out of the top surface of the end wall, the top plate of the side wall protrudes upwards out of the top surface of the side wall, and the top plate of the island does not exceed the top surface of the island.

10. The board-to-board connector of claim 1, 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.