Electric connector assembly

Abstract

The utility model discloses an electric connector assembly which can be installed on an external circuit board in a welding mode, the electric connector assembly comprises a metal shell and a socket connector contained in the metal shell, the metal shell comprises a top wall, a pair of side walls connected with the top wall and a rear wall connected with the top wall and the side walls, the socket connector comprises a plurality of welding pins which can be welded on an external circuit board, and the side wall and the rear wall are provided with open grooves with downward openings, so that hot air can circulate between the open groove of the rear wall and the open groove of the side wall in the process that the electric connector assembly is welded on the external circuit board through a high-temperature furnace.

Description

Technical Field

[0001] The utility model relates to an electrical connector assembly, in particular to an electrical connector assembly that can be welded on a circuit board.

Background Art

[0002] Please refer to U.S. Patent No. 10942322B2 announced on March 9, 2021, which discloses an electrical connector assembly that can be installed on an external circuit board. The electrical connector assembly includes a metal housing, a socket connector disposed in the metal housing, and a heat sink disposed on the outer wall of the metal housing. During the process of welding the electrical connector assembly to the external circuit board through a high-temperature furnace, the metal housing needs to pass through the furnace together with the connector. Since the welding feet of the socket connector are all covered by an iron shell and the heat sink absorbs most of the heat, there will be a phenomenon of poor soldering of the welding feet of the socket connector.

[0003] Therefore, it is necessary to improve the aforementioned electrical connector assembly to solve the aforementioned defects in the prior art.

Summary of the Utility Model

[0004] The main purpose of the utility model is to provide an electrical connector assembly that can be effectively welded on an external circuit board.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: An electrical connector assembly that can be welded and installed on an external circuit board, the electrical connector assembly includes a metal housing and a socket connector housed in the metal housing. The metal housing includes a top wall, a pair of side walls connected to the top wall, and a rear wall connecting the top wall and the side walls. The socket connector includes a plurality of welding feet that can be welded on the external circuit board. Openings facing downward are provided on the side walls and the rear wall, so that during the process of welding the electrical connector assembly to the external circuit board through a high-temperature furnace, hot air can circulate between the openings on the rear wall and the openings on the side walls.

[0006] Compared with the prior art, the advantage of the electrical connector assembly of the utility model is that: By providing openings extending towards the external circuit board on the side walls and the rear wall, hot air can circulate between the openings on the rear wall and the openings on the side walls, avoiding the phenomenon of poor soldering during the process of welding the socket connector to the external circuit board.

Description of the Drawings

[0007] Figure 1 It is a perspective view of the electrical connector assembly conforming to the utility model installed on an external circuit board.

[0008] Figure 2 is Figure 1 The top view of the electrical connector assembly shown installed on an external circuit board.

[0009] Figure 3 is Figure 1 the perspective view of the electrical connector assembly shown.

[0010] Figure 4 is Figure 3 the exploded view of the electrical connector assembly shown.

[0011] Figure 5 is Figure 4 the exploded view of the electrical connector assembly from another perspective shown.

[0012] Figure 6 is Figure 4 the perspective view of the metal housing of the electrical connector assembly shown.

[0013] Figure 7 is Figure 6 the perspective view of the metal housing of the electrical connector assembly from another perspective shown.

[0014] Figure 8 is Figure 7 the exploded view of the metal housing shown.

[0015] Figure 9 is Figure 1 the side view of the electrical connector assembly mounted on an external circuit board shown.

[0016] Figure 10 is Figure 9 the side view of the other side of the electrical connector assembly mounted on an external circuit board shown.

[0017] Figure 11 is Figure 9 the rear view of the electrical connector assembly mounted on an external circuit board shown.

[0018] Figure 12 is Figure 6 the side view of the metal housing shown.

[0019] Figure 13 is Figure 12 the side view of the other side of the metal housing shown.

[0020] Figure 14 is Figure 12 the rear view of the metal housing described.

[0021]

Description of Main Component Symbols

[0022] Electrical connector assembly 100 Slot 132

[0023] External circuit board 200 Insulating housing 30

[0024] Metal housing 1, terminal module 40

[0025] Socket connector 3, docking slot 310

[0026] Heat dissipation device 5, first row of terminals 41

[0027] Top wall 11, second row of terminals 42

[0028] Side wall 12, third row of terminals 43

[0029] Rear wall 13, fourth row of terminals 44

[0030] Bottom wall 14, welding feet 413

[0031] Receiving space 10, radiator 51

[0032] Slot 122, snap member 52

Detailed implementation manners

[0033] As Figure 1-14 shown, an electrical connector assembly 100 conforming to the present utility model can be welded and installed on an external circuit board 200 and can be inserted and mated with a docking plug module (not shown). The electrical connector assembly 100 includes a metal housing 1, a socket connector 3 received in a rear region of the metal housing 1, and a heat dissipation device 5 disposed outside the metal housing 1.

[0034] The metal housing 1 includes a top wall 11, a pair of parallel side walls 12 extending downward from the top wall 11, a rear wall 13 located at the rear of the side walls 12 and the top wall 11, and a bottom wall 14 located at the bottom of the side walls 12 and parallel to the top wall 11. The top wall 11 and the pair of side walls 12 enclose a receiving space 10 with a front opening. The bottom wall 14 faces the external circuit board 200. After the electrical connector assembly 100 is installed on the external circuit board 200, the bottom wall 14 is parallel to the external circuit board 200 but does not contact the external circuit board 200. The rear wall 13 is assembled and fixed at the rear ends of the side walls 12 and the top wall 11. The bottom wall 14 and the side walls 12 are of a separable structure. The side walls 12 are provided with a plurality of mounting feet 121 extending downward for mounting on an external circuit board. The bottom of the side walls 12 is provided with a slot 122 and the bottom of the rear wall 13 is provided with a slot 132, such that when the electrical connector assembly 100 is welded to the external circuit board 200 through a high-temperature reflow furnace, hot air in the reflow furnace forms a circulation between the slot 132 of the rear wall 13 and the slot 122 of the side walls 12, and heat enters from the slot 132 of the rear wall 13 and exits from the slot 122 of the side walls 12.

[0035] The socket connector 3 includes an insulating housing 30 and a terminal module 40 received in the insulating housing 30. The insulating housing 30 includes a docking slot 310 for inserting and mating with the docking tongue plate of the plug module. The socket connector 3 is received in the receiving space 10 and is located at the rear of the receiving space 10. The plug module can be inserted through the front opening and docked with the socket connector 3. The bottom wall 14 extends backward to be spaced from the rear wall 13 by a certain distance, so that the socket connector 3 can be downwardly mounted on the external circuit board 200.

[0036] The terminal module 40 includes a first row of terminals 41, a second row of terminals 42, a third row of terminals 43, and a fourth row of terminals 44 arranged in the transverse direction. Each terminal includes a contact portion (not shown) extending forward for mating with the docking tongue plate of the plug module and a soldering foot 413 extending downward out of the insulating housing 30 and capable of being mounted on the external circuit board 200. The contact portions of the first row of terminals 41 and the second row of terminals 42 are disposed on the upper side of the docking slot 310. The third row of terminals 43 and the fourth row of terminals 44 are disposed on the lower side of the docking slot 310. The first row of terminals 41 and the fourth row of terminals 44 form a front docking socket, and a rear docking socket is formed between the second row of terminals 42 and the third row of terminals 43. The front docking socket and the rear docking socket are arranged in the front-rear direction for mating with the same docking plate.

[0037] The soldering feet 413 of the first row of terminals 41 are arranged in a first row in the transverse direction, the soldering feet 413 of the second row of terminals 42 are arranged in a second row in the transverse direction, the soldering feet 413 of the third row of terminals 43 are arranged in a third row in the transverse direction, and the soldering feet 413 of the fourth row of terminals 44 are arranged in a fourth row in the transverse direction. The soldering feet 413 of the first row of terminals 41 to the fourth row of terminals 44 are arranged in sequence from the rear to the front. The bottom surfaces of the soldering feet 413 of the four rows of terminals are located in the same plane. The slot 122 on the side wall 12 is provided at the bottom of the side wall 12. The slot 122 on the side wall 12 is located in front of the fourth row of mounting feet 413 in the front-rear direction. The slot 122 on the side wall 12 is located behind the bottom wall 14 in the front-rear direction. The height of the slot 122 is higher than the bottom surface of the soldering foot 413. The slot 122 on the side wall 12 is located in front of the soldering foot 413 in the front-rear direction. The side wall 12 is not provided with a slot 122 at a position corresponding to the soldering foot 413 in the transverse direction. The lowermost side of the side wall 12 at the non-slot position is flush with the bottom wall 14.

[0038] During the process of soldering the electrical connector assembly 100 onto the external circuit board 200, the rear part enters the reflow oven first. The hot air flows in the direction opposite to the direction in which the product enters the reflow oven. The hot air enters from the bottom slot 132 at the bottom of the rear wall 13 and exits from the slot 122 on the side wall 12, so that during the process of soldering the electrical connector assembly 100 onto the external circuit board 200, the temperature can quickly reach the melting temperature, and no soldering defect problems will occur.

[0039] The heat dissipation device 5 is installed on the outer sides of the top wall 11 and the side wall 12. No heat dissipation device is provided on the outer side of the rear wall 13. The lowermost side of the heat dissipation device 5 is higher than the height of the groove 122 on the side wall 12. The heat dissipation device 5 includes a radiator 51 and a buckle member 52 that laterally straddles the radiator 51 and is snap-fitted with the side wall 12. The buckle member 52 is snap-fitted with the side wall 12 to fix the radiator 51 on the metal housing 1.

[0040] The above is only one implementation mode of the present invention, not all or the only implementation mode. Any equivalent changes made by those of ordinary skill in the art to the technical solution of the present invention by reading the specification of the present invention are covered by the claims of the present invention.

Claims

1. An electrical connector assembly that can be soldered and mounted onto an external circuit board. The electrical connector assembly includes a metal housing and a socket connector received within the metal housing. The metal housing includes a top wall, a pair of side walls connected to the top wall, and a rear wall connecting the top wall and the side walls. The socket connector includes a plurality of solder feet that can be soldered onto the external circuit board, and is characterized in that: The side wall and the rear wall are provided with slots opening downward, so that during the process of welding the electrical connector assembly to the external circuit board through a high-temperature furnace, hot air can circulate between the slot on the rear wall and the slot on the side wall.

2. The electrical connector assembly according to claim 1, wherein: The metal housing further includes a bottom wall, and the bottom wall and the side wall are of a separable structure. The bottom wall extends backward to be spaced from the rear wall by a certain distance, so as to facilitate the downward installation of the socket connector on the external circuit board.

3. The electrical connector assembly according to claim 2, wherein: The socket connector includes an insulating housing and a terminal module received in the insulating housing. The terminal module includes at least one row of welding feet that can be welded to the external circuit board. The slot on the side wall is arranged behind the bottom wall in the front-rear direction.

4. The electrical connector assembly according to claim 3, wherein: The height of the slot is higher than the bottom surface of the welding feet.

5. The electrical connector assembly according to claim 3, characterized in that: The side wall is not provided with a slot at a position corresponding to the welding feet in the lateral direction.

6. The electrical connector assembly according to claim 3, wherein: The slot on the side wall is located in front of the welding feet in the front-rear direction.

7. The electrical connector assembly according to claim 3, wherein: The lowermost side of the side wall at the position without a slot is flush with the bottom wall.

8. The electrical connector assembly according to claim 3, characterized in that: The socket connector includes a docking slot for inserting and mating with the docking tongue plate of the plug module. The terminal module includes a first row of terminals, a second row of terminals, a third row of terminals, and a fourth row of terminals arranged in the lateral direction. Each terminal includes a contact portion extending forward for mating with the docking tongue plate and a welding foot extending downward out of the insulating housing. The contact portions of the first row of terminals and the second row of terminals are arranged above the docking slot. The contact portions of the third row of terminals and the fourth row of terminals are arranged below the docking slot. The first row of terminals and the fourth row of terminals form a front docking socket. A rear docking socket is formed between the second row of terminals and the third row of terminals. The welding feet of the first row of terminals are arranged in a first row in the lateral direction. The welding feet of the second row of terminals are arranged in a second row in the lateral direction. The welding feet of the third row of terminals are arranged in a third row in the lateral direction. The welding feet of the fourth row of terminals are arranged in a fourth row in the lateral direction. The welding feet of the first row of terminals to the fourth row of terminals are arranged in sequence from the rear to the front. The slot on the side wall is located in front of the welding feet of the fourth row of terminals in the front-rear direction.

9. The electrical connector assembly according to claim 3, wherein: It further includes a heat dissipation device, and the heat dissipation device is installed on the outer sides of the top wall and the side wall. The lowermost side of the heat dissipation device is higher than the height of the slot.

10. The electrical connector assembly according to claim 9, wherein: The outer side of the rear wall is not provided with a heat dissipation device.

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