CN107994385B

CN107994385B - Electrical connector assembly

Info

Publication number: CN107994385B
Application number: CN201711128053.1A
Authority: CN
Inventors: 王军
Original assignee: Lotes Co Ltd
Current assignee: Lotes Co Ltd
Priority date: 2017-11-15
Filing date: 2017-11-15
Publication date: 2020-03-24
Anticipated expiration: 2037-11-15
Also published as: CN107994385A

Abstract

The invention discloses an electric connector assembly, which comprises an electric connector, wherein the electric connector comprises an insulating body and a plurality of terminals, the insulating body is provided with a terminal area, and the terminals are arranged in the terminal area; the gland is arranged on the insulating body and is provided with an opening, and two abutting arms which protrude downwards are arranged on the edge of the opening; and the suction cover is arranged between the insulating body and the gland and covers the terminal area, the suction cover is provided with two concave parts which are concave upwards from the lower surface, and the concave parts are positioned above the terminals and correspondingly positioned below the abutting arms. When the electric connector assembly is combined, the butt arm is abutted downwards to the upper surface of the suction cover corresponding to the concave part, the suction cover including the concave part is bent downwards and deformed, the concave part is sunken upwards, the thickness becomes thin, the concave part and the suction cover can not touch the terminal, so that the suction cover can protect the terminal from being damaged by pressure while being free from external pollution, and the terminal is ensured to have good electric connection performance.

Description

Electrical connector assembly

Technical Field

The present invention relates to an electrical connector assembly, and more particularly to an electrical connector assembly for electrically connecting a chip module to a printed circuit board.

Background

An electrical connector assembly is known, which includes an electrical connector and a suction cap, wherein the electrical connector includes an insulative housing containing a plurality of conductive terminals and a press cap. The gland is in a square hollow frame structure, the middle parts of two sides of the gland are provided with concave butting arms, and the butting arms can apply a downward acting force to the chip module placed on the insulating body to fix the chip module on the insulating body so as to realize the stable electric conduction of the chip module and the electric connector. The suction cover is provided with a smooth and flat surface for the vacuum suction nozzle to suck, and notches are arranged at the corresponding positions of the two opposite longitudinal long side edges of the suction cover and the abutting arms of the pressing cover. However, the electrical connector assembly of the above structure has at least the following drawbacks: the gland can not cover the gap on the suction cover completely, so that in the process of conveying or welding the electric connector assembly on a printed circuit board, dust in the air, solder or other impurities in the welding process can enter the electric connector through the gap, so that pollution to the conductive terminals is caused, and the electric connection function of the electric connector is further influenced.

Therefore, there is a need for a new electrical connector assembly that overcomes the above problems.

Disclosure of Invention

The invention aims to provide an electric connector assembly which prevents a suction cover from damaging a conductive terminal so as to avoid influencing the function of the electric connector.

In order to achieve the purpose, the invention adopts the following technical scheme:

an electrical connector assembly, comprising: the electric connector comprises an insulating body and a plurality of conductive terminals, wherein the insulating body is provided with a terminal area, and the conductive terminals are arranged in the terminal area; the gland is arranged on the insulating body and is provided with an opening, and two abutting arms protruding downwards are arranged on the edge of the opening; and the suction cover is arranged between the insulating body and the gland and covers the terminal area, the suction cover is provided with two sunken parts which are sunken upwards from the lower surface, and the sunken parts are positioned above the conductive terminals and correspondingly positioned below the abutting arms.

Further, the suction cover has an abutting surface that is in contact with the abutting arm, the abutting surface being flush with an upper surface of the suction cover.

Further, the suction cover has an abutting surface that contacts the abutting arm, the abutting surface being higher than an upper surface of the suction cover.

Furthermore, a plurality of conductive terminals are arranged below the sunken part, the butt joint arm is in contact with the suction cover, and the suction cover and the sunken part are bent and deformed downwards.

Further, the lowest point of the concave part is higher than any conductive terminal.

Furthermore, the center of the upper surface of the suction cover is provided with a boss, the boss is contained in the opening, and the top of the boss is provided with a suction plane.

Further, the boss upwards extends has a first ear and a second ear, first ear and second ear set up respectively in the both ends of boss.

Further, the width of the first ear is greater than the width of the second ear.

Further, the ear portion has a through groove penetrating the suction cap.

Furthermore, the insulating body is also provided with a peripheral wall, the peripheral wall bears the suction plate, two grooves are formed in the peripheral wall, and the grooves are located below the concave parts relatively.

Further, the width of the groove is greater than the width of the recess.

Compared with the prior art, the invention has the beneficial effects that: the electric connector component does not directly provide a notch for preventing the interference contact between the pressing cover and the suction cover on the suction plate, but a sunken part which is sunken upwards from the bottom is arranged at the position which is in interference contact with the abutting arm of the pressing cover on the suction cover, so that the conductive terminal is protected from being damaged by the pressing of the pressing cover and the suction cover while the conductive terminal is exposed and polluted, and the electric connector component is ensured to have a good electric connection function.

[ description of the drawings ]

Fig. 1 is a first embodiment of an electrical connector assembly of the present invention.

Fig. 2 is an exploded view of the suction cap and the electrical connector of the electrical connector assembly of the present invention.

Fig. 3 is a combination diagram of the sucking cover and the electric connector of the electric connector assembly of the present invention, wherein the pressing cover is not buckled.

Fig. 4 is a combination view of the sucking cover and the electric connector of the electric connector assembly of the present invention, wherein the pressing cover is buckled.

Fig. 5 is a cross-sectional view taken along line a-a of fig. 4, in which the suction cap is not deformed.

Fig. 6 is a cross-sectional view taken along line a-a of fig. 4, in which the suction cap has been deformed.

Fig. 7 is a second embodiment of the electrical connector assembly of the present invention.

Fig. 8 is a third embodiment of the electrical connector assembly of the present invention.

Fig. 9 is a cross-sectional view taken along line a-a after the suction cap shown in fig. 8 is assembled to the electrical connector.

Detailed description of the embodiments reference is made to the accompanying drawings in which:

electrical connector 1	Insulating body 11	Terminal area 111
			Peripheral wall 112	Groove 113	Conductive terminal 12
Suction cap 2	Boss 21	Suction surface 211
			First ear 212	Second ear 213	Peripheral plate part 22
Recess 23	Through slot 24	Convex rib 25
			Gland 3	Main body 31	Opening 32
Abutment arm 33	Engaging part 34	Hook 35
			Fixing part 4	Rocker 5	Circuit board 8
Locking bolt 81	Contact surface 221	Projection 222

[ detailed description ] embodiments

For a better understanding of the objects, structure, features, and functions of the invention, reference should be made to the drawings and detailed description that follow.

Referring to fig. 2 to 4, the present invention is an electrical connector assembly mounted on a circuit board 8, which includes an electrical connector 1, a fixing member 4 located at one side of the electrical connector 1 and fixed on the circuit board 8, a rocker 5 pivotally connected to the fixing member 4, a pressing cover 3 pivotally connected to the rocker 5, and a suction cover 2 assembled to the electrical connector 1.

The electrical connector 1 is mounted on the circuit board 8 for electrically connecting the circuit board 8 and a chip module (not shown). The electrical connector 1 includes an insulating body 11 and a plurality of conductive terminals 12. The insulating body 11 has a terminal area 111 provided with the conductive terminal 12 and a peripheral wall 112 surrounding the terminal area 111. Two grooves 113 are formed on the upper edge of the peripheral wall 112 and located on two opposite sides of the terminal area 111, respectively, so as to provide an operating space for fingers when assembling or taking off the chip module, thereby facilitating the fingers to grasp the chip module.

The gland 3 comprises a main body part 31, an opening 32 is arranged in the center of the main body part 31, two arc-shaped abutting arms 33 which protrude downwards are arranged at the edge of the opening 32 of the main body part 31, and the abutting arms 33 are respectively positioned at the left side and the right side of the opening 32. One end of the main body 31 extends to form an engaging portion 34 and a hook 35, the engaging portion 34 engages with a locking bolt 81 locked to the circuit board 8, and the hook 35 is used to hold the rocker 5.

The suction cap 2 is assembled on the insulating body 11, covers the terminal area 111, and is used for being sucked by a vacuum suction nozzle (not shown) to transfer the electrical connector 1 to a corresponding mounting position of the circuit board 8 and protect the conductive terminals 12. The suction cap 2 has a boss 21 in the center, which is received in the opening 31, and a peripheral plate portion 22 surrounding the boss 21. The top of the convex portion 21 has a suction surface 211, and a first ear portion 212 and a second ear portion 213 which protrude upward from the suction surface 211 and are respectively located at both sides of the boss 21, the width of the first ear portion 212 is larger than that of the second ear portion 213, and an operator can install or remove the suction cap 2 by grasping the first ear portion 212 and the second ear portion 213 with the index finger and the thumb, respectively.

Referring to fig. 1 and 5, a first embodiment of an electrical connector assembly of the present invention is shown. The suction cover 2 further has two concave portions 23 recessed upward from the lower surface thereof, the concave portions 23 are located below the abutting arms 33, and a plurality of conductive terminals 12 are located below the concave portions 23. Referring to fig. 1 and 2, the lower surface of the suction cap 2 further has two through grooves 24 penetrating the suction cap 2, and a plurality of intersecting ribs 25. The through grooves 24 are respectively located below the first ear portion 212 and the second ear portion 213, and when the electrical connector 1 is soldered to the circuit board 8, the through grooves 24 can serve as a passage for air to flow, thereby increasing the heat dissipation efficiency. The protruding rib 25 is located below the boss 21 to increase the strength of the boss 21, so that the vacuum suction nozzle can stably suck the suction cover 2, and meanwhile, the suction cover 2 is prevented from being deformed due to heating in the welding process of the electric connector 1.

Referring to fig. 4 to 6, when the suction cap 2 is assembled between the electrical connector 1 and the pressing cover 3 is buckled downward, the abutting arm 33 contacts with the upper surface of the peripheral plate portion 22, that is, the peripheral plate portion 22 has an abutting surface 221 contacting with the abutting arm 33, in this embodiment, the abutting surface 221 is in a coplanar relationship with the upper surface of the peripheral plate portion 22. Referring to fig. 5 and 6, when the press cover 3 is completely buckled, the abutting arm 33 presses the peripheral plate portion 22 where the recessed portion 23 is located downward, the recessed portion 23 and the corresponding peripheral plate portion 22 are bent and deformed downward, wherein the lowest point of the peripheral plate portion 22 and the lowest point of the recessed portion 23 are higher than the conductive terminal 12. Since the thickness of the recessed portion 23 is smaller than the thickness of the other portion of the peripheral plate portion 22, it is ensured that the pressed recessed portion 23 does not touch the conductive terminal 12 due to downward deformation after the pressing cover 3 is completely fastened, and further that the conductive terminal 12 is not damaged by the suction cover 2 while the suction cover 2 protects the conductive terminal 12.

Referring to fig. 7, a second embodiment of the electrical connector assembly of the present invention is shown. This embodiment is different in that the recess portions 23 extend to opposite sides of the suction cap 2, communicate with the outside of the suction cap 2, and form a recess in the outer edge of the suction cap 2. Wherein, the width of the groove 113 of the insulating body 11 is larger than the width of the recess 23, so that the peripheral wall 112 can stably bear the suction cover 2.

Referring to fig. 8 and 9, a third embodiment of the electrical connector assembly of the present invention is shown. This embodiment is different in that the upper surface of the peripheral plate portion 22 has at least two protrusions 222, and the abutment surface 221 is located on the upper surface of the protrusions 222, and obviously, the abutment surface 221 is higher than the upper surface of the peripheral plate portion 22. The protrusions 222 are symmetrically disposed at two ends of the suction cap 2 and located below the abutting arm 33 and above the recess 23, and when the pressing cap 3 is pressed and fastened downwards, the abutting arm 33 abuts against the abutting surface 221 of the protrusion 222. The protrusions 222 can enhance the strength of the recessed portion 23, so as to more stably support the abutting arm 33, prevent the peripheral plate portion 22 and the recessed portion 23 from being excessively deformed, and avoid crushing the conductive terminal 12.

In summary, the electrical connector assembly of the present invention has the following advantages:

(1) the absorption cover 2 is provided with the sunken part 23 which is positioned below the abutting arm 33, covers the conductive terminal 12 and is sunken upwards from the lower surface, and the sunken part 23 pressed does not contact the conductive terminal 12 when the absorption cover 2 bends and deforms due to the thinning of the sunken part 23, so that the conductive terminal 12 is protected from being polluted, the conductive terminal 12 is prevented from being pressed, and the electric connector assembly provided by the invention has good electric connection performance;

(2) the suction cap 2 has a first ear part 212 and a second ear part 213, so that the operator can grasp the first ear part 212 and the second ear part 213 with fingers to install or remove the suction cap 2;

(3) the suction cover 2 is also provided with a through groove 24 penetrating through the suction cover 2, and when the electric connector 1 is welded on the circuit board 8, the through groove 24 can be used as a channel for air flow, so that the heat dissipation efficiency is increased;

(4) the suction cover 2 is provided with a plurality of crossed convex ribs 25, the convex ribs 25 are positioned below the boss 21 to increase the strength of the boss 21, so that the vacuum suction nozzle can stably suck the suction cover 2 and simultaneously avoid the deformation of the suction cover 2 caused by heating in the welding process of the electric connector 1.

The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all technical changes that can be made by applying the present specification and the drawings are included in the scope of the present invention.

Claims

1. An electrical connector assembly, comprising:

the electric connector comprises an insulating body and a plurality of conductive terminals, wherein the insulating body is provided with a terminal area, and the conductive terminals are arranged in the terminal area;

the gland is arranged on the insulating body and is provided with an opening, and two abutting arms protruding downwards are arranged on the edge of the opening;

the suction cover is arranged between the insulating body and the pressing cover and covers the terminal area, the suction cover is provided with two concave parts which are concave upwards from the lower surface, and the concave parts are positioned above the conductive terminals and correspondingly positioned below the abutting arms; wherein the abutting arm abuts against the suction cover downward at a position right above the corresponding recessed portion.

2. The electrical connector assembly of claim 1, wherein: the suction cover is provided with a butt joint surface which is contacted with the butt joint arm, and the butt joint surface is flush with the upper surface of the suction cover.

3. The electrical connector assembly of claim 1, wherein: the suction cover is provided with an abutting surface which is contacted with the abutting arm, and the abutting surface is higher than the upper surface of the suction cover.

4. The electrical connector assembly of any one of claims 1 to 3, wherein: the conducting terminals are arranged below the sunken parts, the butt-joint arms are in contact with the suction covers, and the suction covers and the sunken parts are bent and deformed downwards.

5. The electrical connector assembly of claim 4, wherein: the lowest point of the concave part is higher than any conductive terminal.

6. The electrical connector assembly of claim 1, wherein: the center of the upper surface of the suction cover is provided with a boss, the boss is contained in the opening, and the top of the boss is provided with a suction plane.

7. The electrical connector assembly of claim 6, wherein: the boss upwards extends there are a first ear and a second ear, first ear and second ear set up respectively in the relative both ends of boss.

8. The electrical connector assembly of claim 7, wherein: the width of first ear is greater than the width of second ear.

9. The electrical connector assembly of claim 7, wherein: the ear has a through slot that runs through the suction cap.

10. The electrical connector assembly of claim 1, wherein: the insulation body is also provided with a peripheral wall, the peripheral wall bears the suction plate, two grooves are arranged on the peripheral wall, and the grooves are positioned below the concave parts relatively.

11. The electrical connector assembly of claim 10, wherein: the width of the groove is larger than that of the concave part.