Electrical Connector and Its Assembly

Abstract

An electrical connector and its combination. The electrical connector combination includes an electrical connector and a cover plate. The electrical connector includes an insulating body and conductive terminals. The cover plate is snapped onto the insulating body. The cover plate has two first side walls, and the insulating body has a first side surface. The insulating body is provided with a pair of fastening openings formed by inward depressions from its first side surface. The first side wall is provided with an operating portion and a pair of fastening arms. The operating portion includes a recessed portion and a lifting portion located above the recessed portion. The fastening arm includes an elastic arm formed by splitting from the first side wall and a fastening head protruding downward at the end of the elastic arm. The fastening head is received and fastened in the fastening opening. The operating portion and the fastening arm do not laterally protrude from the first side surface of the corresponding insulating body. With such a setting, the waste of space on the PCB board can be effectively reduced, and the space utilization rate of the PCB board can be improved. This can not only reduce the volume of the electronic device, but also enable the PCB board to have various designs to improve the performance of the electronic device.

Description

Technical Field

[0001] The present invention relates to an electrical connector assembly, and more particularly to an electrical connector assembly for electrically connecting a wafer module to a printed circuit board.

Background Art

[0002] Chinese Utility Model Patent No. CN201112659Y discloses an electrical connector assembly, which includes an insulating body, conductive terminals and a pick-and-place plate, and the pick-and-place plate is latched with the outer side of the insulating body. In the above device, the lateral length of the pick-and-place plate exceeds the length of the insulating body. On a printed circuit board (PCB) with limited space, space for latching the pick-and-place plate also needs to be considered. After the electrical connector is installed in this way, the pick-and-place plate needs to be removed. At this time, the space reserved for accommodating the pick-and-place plate cannot be utilized, thus wasting the space of the PCB.

[0003] Therefore, it is necessary to provide an improved electrical connector assembly to overcome the above defects.

Summary of the Invention

[0004] The purpose of the present invention is to provide an electrical connector assembly that can improve the space utilization rate of the PCB.

[0005] The purpose of the present invention is achieved through the following technical solutions: An electrical connector assembly includes an electrical connector and a cover plate. The electrical connector includes an insulating body and a plurality of conductive terminals arranged in a matrix on the insulating body. The cover plate is latched on the insulating body. The cover plate has two first side walls arranged oppositely in the horizontal direction, and the insulating body has a first side surface that cooperates with the first side walls. The insulating body is provided with a pair of latching openings formed by being recessed inward from its first side surface. The first side wall is provided with an operating portion and a pair of latching arms. The operating portion includes a recessed portion that is recessed horizontally inward from the outer wall surface of the first side wall and a lifting portion located above the recessed portion. The latching arms include elastic arms formed by splitting from the first side wall and latching heads that protrude downward at the ends of the elastic arms. The latching heads are received and latched in the latching openings, and the operating portion and the latching arms do not protrude horizontally beyond the corresponding first side surface of the insulating body.

[0006] Further, the cover plate has an upper surface and a lower surface arranged oppositely, and the lifting portion protrudes upward from the upper surface of the cover plate.

[0007] Further, an inwardly protruding hook portion is provided at the lower edge of the latching head, and a protruding hook portion is convexly provided on the inner wall of the latching opening of the insulating body. The latching head and the protruding hook portion in the latching opening are latched and fixed to each other.

[0008] Further, the insulating body includes a conductive terminal bearing area and side walls surrounding the conductive terminal bearing area. The side walls include at least two opposite first side walls. The first side wall has a top surface and the above-mentioned first side surface, and the fastening opening penetrates the top surface of the first side wall.

[0009] Further, the insulating body is also provided with an operation accommodating opening located between the two fastening openings. The operation accommodating opening is recessed inward from the first side surface of the first side wall, and the operation accommodating opening is inclined downward from top to bottom. When the cover plate is fastened to the insulating body, the recessed part of the cover plate is aligned with and communicated with the operation accommodating opening of the insulating body.

[0010] Further, the four corners of the cover plate are arranged in a stepped shape.

[0011] Further, on the four diagonals of the insulating body, there are retaining walls extending vertically upward. The insulating body is formed with a receiving cavity surrounded by the four retaining walls. The conductive terminals protrude upward into the receiving cavity, and the retaining walls cooperate with the corresponding corners of the cover plate.

[0012] Further, the retaining wall is arranged at a right angle, and one of the retaining walls is provided with an anti-fooling convex column protruding into the receiving cavity.

[0013] The object of the present invention is also achieved by the following technical solution: An electrical connector includes an insulating body and a plurality of conductive terminals. The insulating body includes a conductive terminal bearing area and side walls surrounding the conductive terminal bearing area. The side walls include at least two opposite first side walls. The conductive terminals are arranged in a matrix in the conductive terminal bearing area. The first side wall has a top surface and a first side surface. The first side wall is provided with an operation accommodating opening and two cover plate fastening openings beside the operation accommodating opening. The operation accommodating opening is recessed inward from the first side surface of the first side wall and penetrates the top surface of the first side wall upward. The cover plate fastening opening is recessed inward from the first side surface of the first side wall and penetrates the top surface of the first side wall upward.

[0014] Further, the inner wall of the cover plate fastening opening is convexly provided with a protruding hook portion, and the operation accommodating opening is inclined downward from top to bottom.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The design of the operation part of the protection cover of the present invention and the operation accommodating opening of the insulating body enables the length of the cover plate in the horizontal direction to be not greater than the length of the insulating body, thereby reducing the space waste of the PCB and improving the space utilization rate of the PCB.

Description of the Drawings

[0016] Figure 1 It is a three-dimensional schematic diagram of the electrical connector combination of the present invention.

[0017] Figure 2 It is a perspective view of another angle of the electrical connector assembly of the present invention.

[0018] Figure 3 It is an exploded perspective view of the electrical connector assembly of the present invention.

[0019] Figure 4 It is Figure 3 an exploded perspective view of another angle of

[0020] Figure 5 It is Figure 1 a cross-sectional view taken along line A-A.

[0021]

Description of Main Element Symbols

[0022] Electrical connector assembly 100, electrical connector 1

[0023] Cover plate 2, first side wall 21

[0024] Operating part 211, retaining arm 212

[0025] Recessed part 213, lifting part 214

[0026] First wall surface 2141, elastic arm 215

[0027] Retaining head 216, hook part 217

[0028] Second side wall 22, upper surface 23

[0029] Lower surface 24, corner part 25

[0030] Insulating body 3, conductive terminal bearing area 31

[0031] Side wall 32, first side wall 321

[0032] Second side wall 322, top surface 323

[0033] First side surface 324, operating accommodation opening 325

[0034] Retaining opening 326, protruding hook part 327

[0035] Retaining wall 33, anti-fooling convex column 331

[0036] Chamfer 332, conductive terminal 4

[0037] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.

Specific Embodiments

[0038] Please refer to Figures 1 to 5As shown, an electrical connector assembly 100 can be used to electrically connect a wafer module to a printed circuit board (PCB). The electrical connector assembly 100 includes an electrical connector 1 and a cover plate 2. The electrical connector 1 includes an insulating body 3 and a plurality of conductive terminals 4 arranged in a matrix on the insulating body 3. The cover plate 2 is fastened to the insulating body 3. In the present invention, the X direction is defined as the transverse direction, and the direction perpendicular to the X direction is the longitudinal direction.

[0039] Please refer specifically to Figures 3 to 4 As shown, the insulating body 3 includes a conductive terminal bearing area 31 and side walls 32 surrounding the conductive terminal bearing area 31. The conductive terminals 4 are arranged in a matrix in the conductive terminal bearing area 31. The side walls 32 include two laterally opposite first side walls 321 and two longitudinally opposite second side walls 322. The first side wall 321 has a top surface 323 and a first side surface 324. The first side wall 321 is provided with an operation receiving opening 325 and two fastening openings 326 located beside the operation receiving opening 325. The operation receiving opening 325 is recessed inward from the first side surface 324 of the first side wall 321 and penetrates upward through the top surface 323 of the first side wall 321. The operation receiving opening 325 is arranged to be inclined from top to bottom. Specifically, the operation receiving opening 325 starts to incline downward from one end close to the conductive terminal bearing area 31 to one end close to the first side surface 324 of the insulating body 3, so that the opening of the operation receiving opening 325 near the first side surface 324 is larger, having more operation space and being conducive to operation. The fastening opening 326 is recessed inward from the first side surface 324 of the first side wall 321. The fastening opening 326 penetrates upward through the top surface 323 of the first side wall 321 and downward through the lower surface of the insulating body 3. In other embodiments, the fastening opening 326 can also be set to only penetrate the top surface 323. An outwardly protruding hook portion 327 is convexly provided on the inner wall of each fastening opening 326 for fastening with the cover plate 2.

[0040] Four diagonal corners of the insulating body 3 are also provided with retaining walls 33 extending vertically upward and a receiving cavity (not labeled) surrounded by the four retaining walls 33. The conductive terminals 4 protrude upward into the receiving cavity. The retaining walls 33 are arranged at right angles, and one of the retaining walls 33 is provided with an anti-fooling convex column 331 protruding into the receiving cavity. At the same time, a chamfer 332 is provided on the outer wall surface of one of the retaining walls 33 to prevent the cover plate 2 from being covered in the wrong direction when covering the insulating body 3.

[0041] The cover plate 2 has two first side walls 21 arranged oppositely in the transverse direction, two second side walls 22 arranged oppositely in the longitudinal direction, and an upper surface 23 and a lower surface 24 arranged oppositely. The first side wall 21 cooperates with the first side surface 324 of the insulating body 3. The first side wall 21 is provided with an operating part 211 and a pair of clamping arms 212. The operating part 211 and the clamping arms 212 do not protrude transversely beyond the first side surface 324 of the corresponding insulating body 3. The operating part 211 includes a recessed part 213 that is recessed transversely inward from the outer wall surface of the first side wall 21 and a lifting part 214 located above the recessed part 213. When the cover plate 2 is fastened to the insulating body 3, the recessed part 213 of the cover plate 2 is aligned and communicated with the operating accommodation opening 325 of the insulating body 3. The lifting part 214 protrudes upward from the upper surface 23 of the cover plate 2. In this embodiment, the lifting part 214 is recessed transversely inward from the outer wall surface of the first side wall 21. Specifically, the first wall surface 2141 of the lifting part 214 is slightly recessed inward, which is convenient for grasping the cover plate 2 during assembly. In other embodiments, the lifting part 214 may also be set in a form that does not recess inward.

[0042] The clamping arm 212 includes an elastic arm 215 formed by splitting from the first side wall 21 and a clamping head 216 protruding downward at the end of the elastic arm 215. The clamping head 216 is received and clamped in the clamping opening 326. The lower edge of the clamping head 216 is provided with an inwardly protruding hook part 217. When the cover plate 2 is fastened to the upper surface of the insulating body 3, the hook part 217 of the clamping head 216 and the protruding hook part 327 in the clamping opening 326 are clamped and fixed to each other. In this embodiment, the four corner parts 25 of the cover plate 2 are also set in a stepped shape to cooperate with the four retaining walls 33 of the corresponding insulating body 3. In the invention, the first side wall 21 of the cover plate 2 does not protrude beyond the first side wall 321 of the corresponding insulating body 3, and the second side wall 22 of the cover plate 2 does not protrude beyond the second side wall 322 of the corresponding insulating body 3.

[0043] In summary, the beneficial effects of the electrical connector assembly 100 of the present invention are as follows: In the present invention, the clamping arm 212 is arranged above the electrical connector 1, and the clamping opening 326 of the insulating body 3 is set to be retracted, so that the length of the cover plate 2 in the transverse direction is not greater than the length of the insulating body 3, and the length of the cover plate 2 in the longitudinal direction is not greater than the length of the insulating body 3. Thus, when designing the electrical connector assembly 100, only the size of the electrical connector 1 needs to be considered, and thus the space waste on the PCB can be effectively reduced, and the space utilization rate can be improved.

[0044] The above are only some embodiments of the present invention, not all embodiments. 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, which includes an electrical connector and a cover plate. The electrical connector includes an insulating body and a plurality of electrically conductive terminals arranged in a matrix on the insulating body. The cover plate is snapped onto the insulating body. The cover plate has two first side walls arranged opposite to each other in the transverse direction, and the insulating body has a first side surface that cooperates with the first side walls. It is characterized in that: The insulating body is provided with a pair of buckling openings formed by inward depressions from its first side surface. The first side wall is provided with an operating part and a pair of buckling arms. The operating part is located between the pair of buckling arms. The operating part includes a recessed part that laterally inwardly depresses from the outer wall surface of the first side wall and a lifting part located above the recessed part. The cover plate has an upper surface, and the lifting part protrudes upward from the upper surface of the cover plate. The buckling arm includes an elastic arm formed by splitting from the first side wall and a buckling head that protrudes downward at the end of the elastic arm. The buckling head is received and buckled in the buckling opening. The operating part and the buckling arm do not laterally protrude from the first side surface of the corresponding insulating body. Four diagonal corners of the insulating body are provided with retaining walls that vertically extend upward and are spaced apart from each other. The insulating body is formed with a receiving cavity surrounded by the four retaining walls. The cover plate has a longitudinal direction perpendicular to the lateral direction. The lengths of the cover plate in the lateral and longitudinal directions are respectively not greater than the lengths of the insulating body in the lateral and longitudinal directions. The cover plate is provided with two longitudinal side walls in the longitudinal direction, and the two longitudinal side walls continuously extend between the two adjacent retaining walls in the longitudinal direction. Except for the lifting part, the entire upper surface of the cover plate is at the same horizontal height and does not exceed the upper surface of the retaining wall.

2. The electrical connector assembly according to claim 1, wherein: The cover plate has a lower surface.

3. The electrical connector assembly according to claim 1, wherein: The lower edge of the buckling head is provided with an inwardly protruding hook portion, and the inner wall of the buckling opening of the insulating body is convexly provided with a protruding hook portion. The buckling head and the protruding hook portion in the buckling opening are buckled and fixed to each other.

4. The electrical connector assembly as claimed in claim 3, wherein: The insulating body includes a conductive terminal bearing area and side walls surrounding the conductive terminal bearing area. The side walls at least include two opposite first side walls. The first side wall has a top surface and the above-mentioned first side surface. The buckling opening penetrates the top surface of the first side wall.

5. The electrical connector assembly according to claim 1, wherein: The insulating body is further provided with an operating receiving opening located between the two buckling openings. The operating receiving opening inwardly depresses from the first side surface of the first side wall. The operating receiving opening is inclined downward from top to bottom. When the cover plate is buckled on the insulating body, the recessed part of the cover plate is aligned and communicated with the operating receiving opening of the insulating body.

6. The electrical connector assembly according to claim 1, wherein: The four corners of the cover plate are arranged in a stepped shape.

7. The electrical connector assembly according to claim 6, wherein: The conductive terminal protrudes upward into the receiving cavity, and the retaining wall cooperates with the corresponding corner of the cover plate.

8. The electrical connector assembly as claimed in claim 7, wherein: The retaining wall is arranged at a right angle, and one of the retaining walls is provided with an anti-fooling convex column protruding into the receiving cavity.

9. An electrical connector for mating with a cover plate, comprising an insulating body and a plurality of conductive terminals. The insulating body includes a conductive terminal bearing area and side walls surrounding the conductive terminal bearing area. The side walls include at least two opposite first side walls. The conductive terminals are arranged in a matrix in the conductive terminal bearing area, characterized in that : The first side wall has a top surface and a first side surface. The first side wall is provided with an operation receiving opening and two cover plate fastening openings located beside the operation receiving opening. The operation receiving opening is recessed inward from the first side surface of the first side wall and penetrates upward through the top surface of the first side wall. The cover plate fastening opening is recessed inward from the first side surface of the first side wall and penetrates upward through the top surface of the first side wall. The cover plate is fastened to the insulating body. The cover plate has two first side walls arranged transversely opposite to each other. The first side wall is provided with an operation part and a pair of fastening arms. The operation part is located between the pair of fastening arms. The operation part includes a recessed part recessed transversely inward from the outer wall surface of the first side wall and a lifting part located above the recessed part. The cover plate has an upper surface. The lifting part protrudes upward from the upper surface of the cover plate. The operation part and the fastening arms do not protrude transversely beyond the first side surface of the corresponding insulating body. At the four diagonals of the insulating body, there are retaining walls extending vertically upward and spaced apart from each other. The insulating body forms a receiving cavity surrounded by the four retaining walls. The cover plate is provided with a longitudinal direction perpendicular to the transverse direction. The lengths of the cover plate in the transverse and longitudinal directions are respectively not greater than the lengths of the insulating body in the transverse and longitudinal directions. The cover plate is provided with two longitudinal side walls in the longitudinal direction. The two longitudinal side walls extend continuously between the two adjacent retaining walls in the longitudinal direction. Except for the lifting part, the entire upper surface of the cover plate is at the same horizontal height and does not exceed the upper surface of the retaining wall.

10. The electrical connector according to claim 9, wherein: The inner wall of the cover plate fastening opening is convexly provided with a protruding hook part. The operation receiving opening is arranged to be inclined downward from top to bottom.

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