US-12625332-B2 - Connector assembly with improved heat dissipation effect for being reliably fixed to circuit board

US12625332B2US 12625332 B2US12625332 B2US 12625332B2US-12625332-B2

Abstract

A connector assembly includes an electrical connector, a metal shielding cage, a heat sink and a fastening member. The electrical connector includes an insulating body and a number of conductive terminals configured to be mounted on a circuit board. The insulating body includes a mating slot. The metal shielding cage is shielded on a periphery of the electrical connector. The metal shielding cage includes a receiving chamber in communication with the mating slot for receiving a mating connector along a first direction. The first direction is perpendicular to the circuit board. The heat sink is fixed to the metal shielding cage. The fastening member passes through the circuit board and is fastened to the heat sink.

Inventors

Bin Huang
Qiongnan Chen
Hongji Chen
Chuanqi GONG

Assignees

DONGGUAN LUXSHARE TECHNOLOGIES CO., LTD

Dates

Publication Date: 20260512
Application Date: 20230802
Priority Date: 20230119

Claims (20)

1 . A connector assembly, comprising: an electrical connector comprising an insulating body and a plurality of conductive terminals, the insulating body comprising a mating slot configured to receive a mating connector, the plurality of conductive terminals being configured to be mounted to a circuit board; a metal shielding cage shielding a periphery of the electrical connector, the metal shielding cage comprising a receiving chamber communicating with the mating slot, the receiving chamber and the mating slot being configured to jointly receive the mating connector along a first direction, the first direction being perpendicular to the circuit board; a heat sink mounted to the metal shielding cage; and a fastening member passing through the circuit board and being fastened to the heat sink; wherein the metal shielding cage comprises a first end wall, a first side wall, a second side wall opposite to the first side wall, and a second end wall opposite to the first end wall; and wherein the receiving chamber is jointly enclosed by the first end wall, the first side wall, the second side wall and the second end wall; wherein the metal shielding cage comprises an inner metal shell fixed to the first side wall and the second side wall; the inner metal shell divides the receiving chamber into a first receiving chamber and a second receiving chamber located on two sides of the inner metal shell, respectively; wherein the inner metal shell comprises a top wall, a first fixing wall bent downwardly from one side of the top wall, and a second fixing wall bent downwardly from another end of the top wall; wherein the inner metal shell further comprises an opening surrounded by the top wall, the first fixing wall and the second fixing wall; and wherein the connector assembly further comprises a mounting block installed in the opening.
2 . The connector assembly according to claim 1 , wherein the heat sink defines an internal threaded hole; the fastening member is a bolt which is fastened in the internal threaded hole of the heat sink.
3 . The connector assembly according to claim 1 , wherein the first end wall defines a first opening communicating with the receiving chamber; the heat sink comprises a first heat sink fixed to the first end wall; the first heat sink comprises a first base, a first body portion and a plurality of first heat dissipation fins protruding sidewardly from the first body portion; the first body portion at least partially extends into the first opening, and is exposed in the receiving chamber; a thickness of the first base along the first direction is greater than a thickness of each first heat dissipation fin along the first direction; the internal threaded hole comprises a first internal threaded hole provided on the first base; and the fastening member comprises a first fastening member fastened in the first internal threaded hole.
4 . The connector assembly according to claim 3 , wherein the second end wall defines a second opening communicating with the receiving chamber; the heat sink comprises a second heat sink fixed to the second end wall; the second heat sink comprises a second base, a second body portion and a plurality of second heat dissipation fins extending sidewardly from the second body portion; the second body portion at least partially extends into the second opening, and is exposed in the receiving chamber; a thickness of the second base along the first direction is greater than a thickness of each second heat dissipation fin along the first direction; the internal threaded hole comprises a second internal threaded hole provided on the second base; and the fastening member comprises a second fastening member fastened in the second internal threaded hole.
5 . The connector assembly according to claim 1 , wherein the metal shielding cage has a first height H 1 along the first direction; the metal shielding cage has a first length L 1 along a second direction perpendicular to the first direction, where H 1 >L 1 .
6 . The connector assembly according to claim 5 , wherein the metal shielding cage has a first width W 1 along a third direction which is perpendicular to the first direction and the second direction, where H 1 >W 1 .
7 . The connector assembly according to claim 4 , wherein the first opening communicates with the first receiving chamber; the second opening communicates with the second receiving chamber; the mating connector comprises a first mating connector configured to be received in the first receiving chamber and a second mating connector configured to be received in the second receiving chamber; the first mating connector is configured to be in contact with the first body portion; the second mating connector is configured to be in contact with the second body portion.
8 . The connector assembly according to claim 1 , wherein the mounting block comprises a top wall portion, a bottom wall portion, a first wall portion, a second wall portion opposite to the first wall portion, a third wall portion connecting one end of the first wall portion and one end of the second wall portion, and a fourth wall portion connecting another end of the first wall portion and another end of the second wall portion; the first wall portion has a first wall surface; and the second wall portion has a second wall surface opposite to the first wall surface; at a position adjacent to the bottom wall portion, the mounting block further comprises a heat dissipation through hole extending through the first wall surface and the second wall surface.
9 . The connector assembly according to claim 8 , wherein the first side wall defines a plurality of first heat dissipation holes, the second side wall defines a plurality of second heat dissipation holes, the heat dissipation through hole corresponds to heights of the first heat dissipation holes and the second heat dissipation holes in the first direction; and the first heat dissipation holes, the heat dissipation through hole and the second heat dissipation holes are in communication.
10 . The connector assembly according to claim 8 , wherein the mounting block further comprises a plurality of heat dissipation channels extending through the third wall portion and arranged at intervals; the plurality of heat dissipation channels extend upwardly through the top wall portion; and the plurality of heat dissipation channels are in communication with the heat dissipation through hole downwardly.
11 . The connector assembly according to claim 8 , wherein the first side wall defines a plurality of first mounting holes, and the second side wall defines a plurality of second mounting holes; the first wall portion is provided with a plurality of first mounting protrusions protruding beyond the first wall surface; and the plurality of first mounting protrusions are clamped in corresponding first mounting holes; the second wall portion is provided with a plurality of second mounting protrusions protruding beyond the second wall surface; and the plurality of second mounting protrusions are clamped in corresponding second mounting holes.
12 . The connector assembly according to claim 1 , wherein the connector assembly comprises a first terminal module; wherein the first terminal module comprises a first insulating block, the plurality of conductive terminals comprise a plurality of first conductive terminals fixed to the first insulating block and a plurality of second conductive terminals fixed to the first insulating block; each first conductive terminal comprises a first fixing portion, a first elastic contact arm extending from one end of the first fixing portion, and a first tail portion extending from another end of the first fixing portion; the first fixing portion is fixed to the first insulating block; the first tail portion extends beyond the first insulating block; each second conductive terminal comprises a second fixing portion, a second elastic contact arm extending from one end of the second fixing portion, and a second tail portion extending from another end of the second fixing portion; the second fixing portion is fixed to the first insulating block; the second tail portion extends beyond the first insulating block; and the first tail portion and the second tail portion are configured to be mounted on the circuit board.
13 . The connector assembly according to claim 12 , wherein the first tail portion and the first fixing portion are located on a straight line along the first direction; the second tail portion and the second fixing portion are located on another straight line along the first direction.
14 . The connector assembly according to claim 12 , wherein the first tail portion is perpendicular to the first fixing portion; the second tail portion is perpendicular to the second fixing portion; and the first tail portion and the second tail portion are configured to be surface mounted on the circuit board.
15 . The connector assembly according to claim 7 , wherein the insulating body comprises a base portion, a first extension protrusion extending from one side of the base portion along the first direction, and a second extension protrusion extending from another side of the base portion along the first direction; the first extension protrusion and the second extension protrusion are located on a same side of the base portion; the insulating body comprises two first protrusions protruding from two ends of the first extension protrusion toward the second extension protrusion, and a first positioning slot jointly formed by the first extension protrusion and the two first protrusions; the insulating body comprises two second protrusion protruding from two ends of the second extension protrusion toward the first extension protrusion, and a second positioning slot jointly formed by the second extension protrusion and the two second protrusions; the insulating body comprises a receiving groove located between the first extension protrusion and the second extension protrusion; the receiving groove is located between the first positioning slot and the second positioning slot; the receiving groove is in communication with the first positioning slot and the second positioning slot; the mating slot comprises a first mating slot formed on the first extension protrusion and extending through the first extension protrusion along the first direction, and a second mating slot formed on the second extension protrusion and extending through the second extension protrusion along the first direction; the first mating slot is in communication with the first receiving chamber so as to receive the first mating connector; the second mating slot is in communication with the second receiving chamber so as to receive the second mating connector.
16 . The connector assembly according to claim 15 , wherein the first fixing wall, the mounting block and the second fixing wall are at least partially inserted into the receiving groove.
17 . The connector assembly according to claim 1 , further comprising a fastener; wherein the fastener passes through the circuit board and is fastened to the mounting block.
18 . A connector assembly, comprising: an electrical connector comprising an insulating body and a plurality of conductive terminals, the insulating body comprising a mating slot configured to receive a mating connector, the plurality of conductive terminals being configured to be mounted to a circuit board; and a metal shielding cage shielding a periphery of the electrical connector, the metal shielding cage comprising a receiving chamber communicating with the mating slot, the receiving chamber and the mating slot being configured to jointly receive the mating connector along a first direction, the first direction being perpendicular to the circuit board; wherein the metal shielding cage comprises a first end wall, a first side wall, a second side wall opposite to the first side wall, and a second end wall opposite to the first end wall; and the receiving chamber is jointly enclosed by the first end wall, the first side wall, the second side wall and the second end wall; wherein the metal shielding cage comprises an inner metal shell fixed to the first side wall and the second side wall; the inner metal shell divides the receiving chamber into a first receiving chamber and a second receiving chamber located on two sides of the inner metal shell, respectively; wherein the inner metal shell comprises a top wall, a first fixing wall bent from one side of the top wall, a second fixing wall bent from another end of the top wall, and an opening surrounded by the top wall, the first fixing wall and the second fixing wall; and wherein the connector assembly further comprises a mounting block installed in the opening.
19 . The connector assembly according to claim 18 , wherein the mounting block comprises a top wall portion, a bottom wall portion, a first wall portion, a second wall portion opposite to the first wall portion, a third wall portion connecting one end of the first wall portion and one end of the second wall portion, and a fourth wall portion connecting another end of the first wall portion and another end of the second wall portion; the first wall portion has a first wall surface; and the second wall portion has a second wall surface opposite to the first wall surface; at a position adjacent to the bottom wall portion, the mounting block further comprises a heat dissipation through hole extending through the first wall surface and the second wall surface.
20 . The connector assembly according to claim 19 , wherein the mounting block further comprises a plurality of heat dissipation channels extending through the third wall portion and arranged at intervals; the plurality of heat dissipation channels extend upwardly through the top wall portion; and the plurality of heat dissipation channels are in communication with the heat dissipation through hole downwardly.

Description

CROSS-REFERENCE TO RELATED APPLICATION This patent application claims priority of a Chinese Patent Application No. 202310088184.0, filed on Jan. 19, 2023 and titled “CONNECTOR ASSEMBLY”, the entire content of which is incorporated herein by reference. TECHNICAL FIELD The present disclosure relates to a connector assembly, which belongs to a technical field of connectors. BACKGROUND A connector assembly in the related art generally includes a circuit board and a connector sub-assembly mounted to the circuit board. The connector sub-assembly includes an electrical connector and a metal shielding cage surrounding a periphery of the electrical connector for shielding. The metal shielding cage is provided with a receiving chamber configured to receive a mating connector. An extending direction of the receiving chamber is parallel to the circuit board. In addition, how to improve the heat dissipation effect and improve the reliability of the connector assembly mounted to the circuit board is also a technical problem faced by those skilled in the art. SUMMARY An object of the present disclosure is to provide a connector assembly with better heat dissipation effect and a heat sink can be reliably fixed to a circuit board. In order to achieve the above object, the present disclosure adopts the following technical solution: a connector assembly, including: an electrical connector including an insulating body and a plurality of conductive terminals, the insulating body including a mating slot configured to receive a mating connector, the plurality of conductive terminals being configured to be mounted to a circuit board; a metal shielding cage shielding a periphery of the electrical connector, the metal shielding cage including a receiving chamber communicating with the mating slot, the receiving chamber and the mating slot being configured to jointly receive the mating connector along a first direction, the first direction being perpendicular to the circuit board; a heat sink mounted to the metal shielding cage; and a fastening member passing through the circuit board and being fastened to the heat sink. Compared with the prior art, the present disclosure is provided with the heat sink mounted to the metal shielding cage, and the fastening member passes through the circuit board and is fastened to the heat sink. With such arrangement, the heat dissipation effect of the present disclosure is improved and the heat sink can be reliably fixed to the circuit board. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic perspective view of a connector assembly in accordance with a first embodiment of the present disclosure; FIG. 2 is a partial perspective exploded view of FIG. 1, wherein the first mating connector and a second mating connector are separated; FIG. 3 is a front view of FIG. 2; FIG. 4 is an exploded perspective view of the connector assembly, a fastener and a circuit board in FIG. 1 of the present disclosure; FIG. 5 is a perspective schematic view of the circuit board shown in FIG. 4; FIG. 6 is a perspective exploded view of FIG. 4 from another angle; FIG. 7 is a further partial perspective exploded view of FIG. 4; FIG. 8 is a partial perspective exploded view of FIG. 7 from another angle; FIG. 9 is a rear view of a metal shielding cage in FIG. 4; FIG. 10 is a left view of the metal shielding cage in FIG. 4; FIG. 11 is a front view of the first mating connector and the second mating connector in FIG. 1 inserted into the connector assembly after removing a first metal shell and a second metal shell; FIG. 12 is a perspective schematic view of an inner metal shell, a second ground elastic piece, a mounting block, an electrical connector, the circuit board and the fastener, wherein the mounting block is assembled with the electrical connector; FIG. 13 is a perspective exploded view of an insulating body, a first terminal module, a second terminal module and the mounting block in FIG. 12; FIG. 14 is a perspective exploded view of FIG. 13 from another angle; FIG. 15 is a front view of the first terminal module and the second terminal module in FIG. 14; FIG. 16 is an exploded front view of the connector assembly in FIG. 1; FIG. 17 is a left side view of the mounting block shown in FIG. 16; FIG. 18 is a schematic sectional view taken along line C-C in FIG. 1; FIG. 19 is a partial enlarged view of a frame part B in FIG. 18; FIG. 20 is a schematic perspective view of the connector assembly in accordance with a second embodiment of the present disclosure; FIG. 21 is a partial perspective exploded view of FIG. 20; FIG. 22 is a front view of FIG. 21; FIG. 23 is a schematic perspective view of the connector assembly in accordance with a third embodiment of the present disclosure; FIG. 24 is a partial perspective exploded view of FIG. 23; FIG. 25 is a schematic perspective view of the circuit board in FIG. 24; FIG. 26 is a partial perspective exploded view of FIG. 24 from another angle; FIG. 27 is a front view of the connector