CN214254901U

CN214254901U - Electrical connector

Info

Publication number: CN214254901U
Application number: CN202022421062.3U
Authority: CN
Inventors: 郑善雍; 杨智凯
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Hongteng Precision Technology Co Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Hongteng Precision Technology Co Ltd; Foxconn Interconnect Technology Ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-09-21
Anticipated expiration: 2030-10-27

Abstract

An electric connector is used for electrically connecting a chip module to a circuit board, and comprises a fixed seat, a cover plate, a back plate, a plurality of first locking pieces and a plurality of second locking pieces, wherein the fixed seat is arranged on the upper surface of the circuit board, the back plate is arranged on the lower surface of the circuit board, the fixed seat, the circuit board and the back plate are fixed with each other, the cover plate and the fixed seat are fixed with each other by the plurality of second locking pieces, the fixed seat is provided with a first side edge, a second side edge and two third side edges, the first side edge and the second side edge are opposite, the two third side edges are connected with the first side edge and the second side edge, and the cover plate is pivoted to the first side edge of the fixed seat; first locking piece and second locking piece one-to-one each other and adjacent setting, it is a plurality of moreover first, second locking piece distributes at the first side and the second side of fixing base. The utility model provides an electric connector's first, second locking piece distributes at the first side and the second side of fixing base, makes the distance between the two reduce to make the fixing base be difficult to produce and warp, in order to do benefit to the lock of chip module and attach.

Description

Electrical connector

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electric connector especially relates to an electric connector that lock attaches performance better.

[ background of the invention ]

The patent CN110838634A discloses an electrical connector, which includes an electrical connection socket, a fixing base, a pressing member, and first and second locking structures disposed on the fixing base, wherein the first locking structure is disposed on one side of the fixing base, and the four second locking structures are disposed on diagonal lines of the fixing base. Foretell first lock attaches structure and second lock and attaches the structure apart from being far away, and at the in-process that the lock attaches, the fixing base takes place deformation easily, causes the loss of strength, is unfavorable for attaching the lock to the chip module, because chip module atress is uneven, causes the damage of chip module easily.

Therefore, there is a need to provide a new electrical connector to solve the above problems.

[ Utility model ] content

The present invention is directed to an electrical connector having a better locking performance.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an electric connector is used for electrically connecting a chip module to a circuit board, and comprises a fixed seat arranged on the upper surface of the circuit board, a cover plate, a back plate arranged on the lower surface of the circuit board, a plurality of first locking pieces for fixing the fixed seat, the circuit board and the back plate mutually, and a plurality of second locking pieces for fixing the cover plate and the fixed seat mutually, wherein the fixed seat is provided with a first side edge, a second side edge and two third side edges for connecting the first side edge and the second side edge which are opposite, and the cover plate is pivoted on the first side edge of the fixed seat; first locking piece and second locking piece one-to-one each other and adjacent setting, it is a plurality of moreover first, second locking piece distributes the first side and the second side of fixing base.

Furthermore, the cover plate comprises four pressing edges corresponding to the first, second and third side edges of the fixed seat; and a plurality of first through holes which penetrate through from top to bottom are respectively arranged on the two pressing edges corresponding to the first side edge and the second side edge, and the first through holes are used for avoiding and corresponding to the first locking piece.

Still further, the first locking element comprises a nut and a screw which are matched with each other, and the diameter of the first through hole is larger than that of the nut.

Still further, the first locking piece further comprises a lantern ring, and the lantern ring is sleeved on the periphery of the tail end of the nut, which is located below the cover plate.

Still further, the first locking element is disposed proximate to the chip module, and a vertical distance from the first locking element to an edge of the chip module is less than a vertical distance from the second locking element to the edge of the chip module.

Still further, the first locking element does not extend along to the third side edge.

Furthermore, the first side edge or the second side edge is respectively provided with two opposite first locking elements and two opposite second locking elements; the two second locking elements are positioned on the inner sides of the two first locking elements in the direction parallel to the first side edge and the second side edge; in the direction perpendicular to the first side edge and the second side edge, the first locking piece is closer to the chip module than the second locking piece.

Furthermore, the electric connector further comprises a clamping plate for clamping the chip module and a third locking piece, wherein the cover plate, the clamping plate, the fixed seat, the circuit board and the back plate are fixed together by the third locking piece.

Furthermore, the back plate is provided with a plurality of screw holes which are respectively matched with the first locking piece and the third locking piece.

Furthermore, the first side edge and the second side edge of the fixed seat are respectively provided with a pivoting mechanism, and one end of the cover plate is pivoted with the pivoting mechanism on the first side edge and used for pressing the chip module; one end of the clamping plate is pivoted to the pivoting mechanism at the second side edge and used for mounting the chip template.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a set up first locking piece and second locking piece in the same side of fixing base, make the distance between first locking piece and the second locking piece reduce to make the fixing base be difficult to produce and warp, in order to do benefit to the lock of chip module and attach.

[ description of the drawings ]

Fig. 1 is a schematic perspective view of the electrical connector of the present invention.

Fig. 2 is a perspective view of fig. 1 from another angle.

Fig. 3 is a side view of the electrical connector of the present invention.

Fig. 4 is an exploded perspective view of the electrical connector of the present invention.

Fig. 5 is a further exploded perspective view of fig. 4.

Fig. 6 is an enlarged view of the circled portion in fig. 5.

Fig. 7 is a partially exploded perspective view of the electrical connector of the present invention.

Fig. 8 is an exploded perspective view from another angle of fig. 5.

Fig. 9 is a schematic perspective view of the back plate in the electrical connector of the present invention in a natural state.

Fig. 10 is a sectional view taken along a broken line a-a in fig. 9.

Fig. 11 is a sectional view taken along a broken line B-B in fig. 1.

Fig. 12 is a cross-sectional view taken along the dashed line C-C in fig. 1.

[ description of element symbols ]

Electric connector 100 insulation body 1

First side 21 of the fixed seat 2

Second side 22 and third side 23

Pivoting mechanism 24 cover plate 3

First stitching side 31 and second stitching side 32

Third press-fit edge 33 first through hole 34

Second through hole 35 and third through hole 36

The press-fit portion 37 holds the board 4

Back plate 5 with abdicating groove 41

First frame 511 of frame 51

Second frame 512 frame mouth 52

Outer edge 54 of reinforcement rib 53

Inner edge 55 screw hole 56

First screw hole 561 second screw hole 562

First locking element 6 nut 61

Screw 62 collar 63

Second locking element 7 and third locking element 8

Chip module 200 circuit board 300

Upper surface 301 and lower surface 302

The following detailed description of the invention will be further described in conjunction with the above-identified drawings.

[ detailed description ] embodiments

For better understanding of the objects, structures, features, and functions of the present invention, reference should now be made to the drawings and detailed description of the invention. The utility model discloses in, do not do specifically to the first, the second in the present case and restrict, do not do the precedence order and restrict.

Referring to fig. 1 to 12, an electrical connector 100 is used for electrically connecting a chip module 200 to a circuit board 300, and the electrical connector 100 includes an insulating body 1 mounted on an upper surface 301 of the circuit board 300, a fixing base 2 surrounding the insulating body 1, a cover plate 3 and a clamping plate 4 respectively pivoted to two ends of the fixing base 2, a back plate 5 mounted on a lower surface 302 of the circuit board 300, and a plurality of first locking elements 6, a plurality of second locking elements 7, and a plurality of third locking elements 8 for the electrical connector 100 and the circuit board 300. The insulating body 1 and the fixing base 2 are collectively referred to as a base. A plurality of conductive terminals (not shown) are carried in the insulating body 1. The first locking member 6 passes through the fixing base 2, the circuit board 300 and the back plate 5 and locks them together. The third locking element 8 fixes the cover plate 3, the clamping plate 4, the fixing base 2, the circuit board 300 and the back plate 5 to each other. A plurality of second locking elements 7 fix the cover plate 3 and the fixing base 2 to each other.

Referring to fig. 4 and 5, the fixing base 2 is provided with a first side 21, a second side 22 and two third sides 23 connecting the first side and the second side. The first side 21 and the second side 22 of the fixing base 2 are respectively provided with a pivoting mechanism 24, one end of the cover plate 3 is pivoted to the pivoting mechanism 24 of the first side 21, and one end of the clamping plate 4 is pivoted to the pivoting mechanism 24 of the second side 22.

The cover plate 3 covers the chip module 200 and is pivotally connected to the first side 21 of the fixing base 2 to press the chip module 200. The cover plate 3 includes a first pressing edge 31, a second pressing edge 32 and two third pressing edges 33 corresponding to the first and

second sides

21, 22 and the two third sides 23 of the fixing base 2, and the first, second and third pressing edges are collectively referred to as pressing edges. The first and second stitching edges 31, 32 are arranged oppositely, and the two third stitching edges 33 connect the first and second stitching edges 31, 32. The first and second press-fitting

edges

31 and 32 are respectively provided with a plurality of first through holes 34 and a plurality of second through holes 35 which penetrate through the first and second press-fitting edges from top to bottom, and the first through holes 34 are used for avoiding and corresponding to the first locking parts 6. The second through hole 35 is used to pass the second locking element 7. A third through hole 36 is respectively arranged in the middle of the third pressing edge 33, so that the third locking element 8 can pass through. The first and second

pressing edges

31 and 32 are respectively provided with two pressing portions 37 oppositely, and the pressing portions 37 disposed on the same first side edge 21 or second side edge 22 are disposed at intervals. Each of the press-fit portions 37 has one of the first through holes 34 and one of the second through holes 35, and the first through holes 34 and the second through holes 35 located in the same press-fit portion 37 are adjacent to each other and are not communicated with each other.

The clamping plate 4 is frame-shaped and pivotally connected to the second side 22 of the fixing base 2 for clamping the chip module 200. The two corresponding sides of the third side 23 of the clamping plate 4 and the fixing seat 2 are respectively provided with a yielding groove 41, and the yielding groove 41 is used for the third locking piece 8 to pass through.

Referring to fig. 7 to 9, the back plate 5 includes a frame body 51, a frame opening 52 surrounded by the frame body 51, and a reinforcing rib 53 located in the frame body 51. The frame body 51 comprises an outer edge 54 far away from the frame opening 52 and an inner edge 55 adjacent to the frame opening 52, and the frame body 51 is inclined downwards from the inner edge 55 to the outer edge 54 to form a shape similar to an umbrella. The thickness of the back plate 5 in the vertical direction is 2.5 mm, so that the back plate can be conveniently applied to the inside of a 1U server case space. The back plate 5 is provided with a plurality of screw holes 56, the screw holes 56 comprise a first screw hole 561 and a second screw hole 562 which are respectively matched with the first locking part 6 and the third locking part 8, and the first screw hole 561 is positioned at four corners of the back plate 5.

The frame body 51 includes a pair of first frames 511 disposed opposite to each other and a pair of second frames 512 connecting the two first frames 511, and the pair of first frames 511 and the pair of second frames 512 surround the frame opening 52. The reinforcing rib 53 connects the two first frames 511, the reinforcing rib 53 is formed into an arc-shaped portion, the frame opening 52 is divided into two parts by the reinforcing rib 53, and the reinforcing rib 53 can also be configured to connect the two second frames 512. The intersection point C of the two diagonal lines of the back plate 5 is located at the center of the reinforcing rib 53, and the point C of the center of the reinforcing rib 53 is the highest point of the upward arching of the back plate 5 along the vertical direction. The second screw hole is located in the first frame 511 of the back plate 5, the second screw hole 562 is not in the same straight line with the two first screws 561 located in the same first frame 511, and the second screw hole 562 is closer to the outer side of the first frame 511.

The back plate 5 is arched upward at its center in a natural state to form an arch part, so as to be pre-pressed upward against the circuit board 300 when being locked to the circuit board 300. The vertical upward arching value h of the back plate 5 in the natural state is greater than 0.3 mm, please refer to fig. 10. When the back plate 5 is locked to the circuit board 300, the back plate 5 is flat and attached to the lower surface 302 of the circuit board.

In the prior art, after the chip module 200 is packaged, the chip module 200 may have a central portion that is warped upward, and the center of the insulating body 1 carrying the conductive terminals is bent downward to deform, so that when the cover 3 is locked to the fixing base 3 and the back plate 5, the conductive terminals in the center are in poor contact with the chip module 200, which causes a problem in signal transmission. The utility model discloses in, when preparation backplate 5, in advance will backplate 5 is prepared into and is become the shape of encircleing, is installing during backplate 5, the arch portion of backplate 5 at first with the contact of circuit board 300 is right in advance the central point of circuit board 300 forms the holding power, through first,

third locking piece

6, 8 will backplate 5 with circuit board 300 lock attaches the back, the arch portion of backplate 5 upwards provides the holding power, makes the central point of circuit board 300 is the volume of buckling downwards diminishes to improved conductive terminal with chip module 200's contact.

After the back plate 5 is locked with other components, the back plate 5 is straightened to form a flat plate due to the locking force of the first locking element 6, the first locking element 6 and the third locking element 8 are locked with the upper arched back plate 5, and the pressing force of the cover plate 3 on the chip module 200 reduces the bending deformation of the chip module 200 after being locked, so that the contact area between the central conductive terminal and the chip module 200 can be increased, and the signal transmission performance is improved.

Of course, in other embodiments, the back plate 5 may be formed in an upper arch shape in addition to the locking force between the back plate 5 and the circuit board 300, and the state of the back plate after locking is not limited herein.

Referring to fig. 11, the first locking element 6 includes a nut 61, a screw 62 and a collar 63 that are matched with each other and are sleeved on the periphery of the end of the nut 61 located below the cover plate 3, and the diameter of the first through hole 34 is larger than that of the nut 61. To facilitate the operator to further rotate the nut 61 through the first through hole 34 to tighten the first locking member 6 to hold the chip module 200 in the electrical connector 100.

A plurality of the second locking elements 7 pass through the second through holes 35 of the cover plate to fix the cover plate 3 and the fixing seat 2 to each other.

The third locking element 8 passes through the third through hole 36 of the cover plate 5 from top to bottom, and fixes the cover plate 3, the abdicating groove 41 of the clamping plate 4, the fixing seat 2, the circuit board 300 and the back plate 5 together.

Please refer to fig. 1, 4 to 7, wherein the first locking elements 6 and the second locking elements 7 are disposed adjacent to each other in a one-to-one correspondence, and a plurality of the first locking elements 6 and the second locking elements 7 are disposed on the first side 21 and the second side 22 of the fixing base 2. The first side 21 or the second side 22 is respectively provided with two opposite first locking elements 6 and two opposite second locking elements 7; the first locking element 6 does not extend along to the third side edge 23. Two of the second locking elements 7 are located inside two of the first locking elements 6 in a direction parallel to the first and

second sides

21, 22; in a direction perpendicular to the first and

second sides

21, 22, the first locking element 6 is closer to the chip module 200 than the second locking element 7. The first locking element 6 is arranged next to the chip module 200, and the vertical distance from the first locking element 6 to the edge of the chip module 200 is smaller than the vertical distance from the second locking element 7 to the edge of the chip module 200.

The back plate 5 and the fixing base 2 are locked together through the second locking piece 7 to clamp the circuit board 300, when the clamping piece 4 carries the chip module 200 to cover the insulating body 1, the first locking piece 6 is used to lock the cover 3, and after the cover 3 is locked, an operator passes the operating tool through the first through hole 34 to perform final locking on the first locking piece 6 or adjust the locking force of the first locking piece 6.

The closer the first locking element 6 and the second locking element 7 are located, the more advantageous the locking of the chip module 200 is. The whole force transmission path for locking the chip module 200 is transmitted to the backplate 5 through the fixing base 2, and if the locking position of the cover plate 3 is too far away from the locking position of the backplate 5, the fixing base 2 is deformed, which causes a loss of force, is not favorable for locking the chip module 200, and easily causes damage to the chip module 200. In this embodiment, the first locking element 6 is disposed closer to the chip module 200 and the second locking element 7, and the pressing portion 37 of the cover plate 3 is provided with the first through hole 34 for fastening the first locking element 6 by using an operation tool, so as to reduce the damage rate of the chip module 200 during the process of assembling the electrical connector 100, improve the yield of products, and reduce the production cost. Meanwhile, the locking position of the first locking element 6 is closer to the center of the electrical connector 100, so that the force provided by the cover plate 3 can be more uniformly applied to the conductive terminal.

The above is merely a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby. All the equivalent changes and modifications made in the claims and the specification of the present invention should be covered by the present invention.

Claims

1. An electric connector is used for electrically connecting a chip module to a circuit board, and comprises a fixed seat arranged on the upper surface of the circuit board, a cover plate, a back plate arranged on the lower surface of the circuit board, a plurality of first locking pieces for fixing the fixed seat, the circuit board and the back plate mutually, and a plurality of second locking pieces for fixing the cover plate and the fixed seat mutually, wherein the fixed seat is provided with a first side edge, a second side edge and two third side edges for connecting the first side edge and the second side edge which are opposite, and the cover plate is pivoted on the first side edge of the fixed seat; the method is characterized in that: first locking piece and second locking piece one-to-one each other and adjacent setting, it is a plurality of moreover first, second locking piece distributes the first side and the second side of fixing base.

2. The electrical connector of claim 1, wherein: the cover plate comprises four pressing edges corresponding to the first, second and third side edges of the fixed seat; and a plurality of first through holes which penetrate through from top to bottom are respectively arranged on the two pressing edges corresponding to the first side edge and the second side edge, and the first through holes are used for avoiding and corresponding to the first locking piece.

3. The electrical connector of claim 2, wherein: the first locking piece comprises a nut and a screw which are matched with each other, and the diameter of the first through hole is larger than that of the nut.

4. The electrical connector of claim 3, wherein: the first locking piece further comprises a sleeve ring, and the sleeve ring is sleeved on the periphery of the tail end of the nut, which is located below the cover plate.

5. The electrical connector of claim 1, wherein: the first locking member is disposed proximate to the chip module, a vertical distance of the first locking member to an edge of the chip module being less than a vertical distance of the second locking member to the edge of the chip module.

6. The electrical connector of claim 1, wherein: the first locking element does not extend along to the third side edge.

7. The electrical connector of claim 1, wherein: the first side edge or the second side edge is respectively provided with two opposite first locking parts and two opposite second locking parts; the two second locking elements are positioned on the inner sides of the two first locking elements in the direction parallel to the first side edge and the second side edge; in a direction perpendicular to the first and second sides, the first locking element is closer to the chip module than the second locking element.

8. The electrical connector of claim 1, wherein: the electric connector also comprises a clamping plate and a third locking piece, wherein the clamping plate is used for clamping the chip module, and the cover plate, the clamping plate, the fixed seat, the circuit board and the back plate are fixed together by the third locking piece.

9. The electrical connector of claim 8, wherein: the backplate is equipped with a plurality of screw hole, the screw hole respectively with first locking piece, third locking piece phase-match.

10. The electrical connector of claim 8, wherein: the first side edge and the second side edge of the fixed seat are respectively provided with a pivoting mechanism, and one end of the cover plate is pivoted with the pivoting mechanism on the first side edge and used for pressing the chip module; one end of the clamping plate is pivoted to the pivoting mechanism on the second side edge and used for mounting the chip module.