TWM582245U - Card edge connector - Google Patents

Abstract

This creation discloses a card edge connector, which includes an elongated insulating body, including a first side wall and a second side wall disposed oppositely, and a bottom wall connecting the first and second side walls, formed between the first and second side walls An upwardly opening slot, the slot has an upward inner bottom surface; two rows of conductive terminals are fixed to the insulating body and are arranged on the first and second side walls, respectively, each row of conductive terminals includes a plurality of signal terminals and a plurality of ground terminals; grounding pieces, It is fixed to the insulating body, and the grounding member includes two long sides opposite to each other; the bottom wall of the insulating body is concavely provided with two mounting grooves respectively extending along the first and second side walls, and the two long sides are inserted into the mounting groove from bottom to top The grounding member is provided with a plurality of elastic pins extending from the long sides, and the elastic pins elastically abut the corresponding grounding terminals one by one.

Description

Card edge connector

This creation relates to a card edge connector.

For the conventional technology, please refer to the Mainland China Utility Model Patent No. CN201160168Y announced on December 3, 2008, which discloses an electrical connector including an insulating body, a terminal and a shielding case. The insulating body includes two longitudinally long side walls. A receiving space is provided between the two side walls, and a terminal receiving groove communicating with the receiving space is provided on the side wall. The terminal is installed in the terminal receiving groove. The terminal includes a ground terminal. Each terminal includes a contact portion, a holding portion and a tail portion. The shielding shell covers the side wall of the insulating body, and is provided with a main body portion and a ground arm extending from the main body portion and contacting the ground terminal. The ground arm includes a first arm portion covering the side wall surface and a second arm portion bent and extending from the first arm portion, a slit is formed between the first arm portion and the main body portion, the second arm portion and the ground terminal Contact. The hard interference between the second arm and the ground terminal easily causes the second arm or the ground terminal to wear and cause poor contact, which affects the shielding effect.

For the conventional technology, please refer to the Chinese Patent Application No. CN106356676A published on January 25, 2017, which discloses an electrical connector including two rows of conductors and a butt groove between the two rows of conductors. Including signal conductors and configurable conductors. The configurable conductors are each selectively configurable between a grounded state and a signal state to define grounded conductors or signal conductors, respectively. The ground strap extends across the array of conductors. The ground connection bar includes a rod portion and a plurality of ground fingers coupled to the rod portion and extending from the rod portion. The ground finger, when present, aligns with the associated configurable conductor to engage and electrically connect to the configurable conductor. The ground connection bar includes a rod portion and a plurality of ground fingers coupled to the rod portion and extending from the rod portion. The ground connection bar has a comb-tooth structure. The stem is planar and defines a first edge side and an opposite second edge side. The front ground finger extends from the first edge side. The rear ground finger extends from the second edge side. The front ground finger and the rear ground finger are configured to join the same configurable conductor at different positions along the length of the configurable conductor. A grounding member only engages the conductor on one side of the docking slot, and the structure is more complicated.

In view of the above problems, it is necessary to improve the conventional technology to overcome the above-mentioned defects.

The purpose of this creation is to provide a card edge connector with improved high frequency performance and simple structure.

In order to achieve the above purpose, this creation uses the following technical solutions:

A card edge connector, comprising: a longitudinal insulating body, comprising a first side wall and a second side wall oppositely arranged, and a bottom wall connecting the first side wall and the second side wall, between the first side wall and the second side wall An upwardly-opening slot is formed, the slot has an upward inner bottom surface; two rows of conductive terminals are fixed to the insulating body and arranged on the first side wall and the second side wall, respectively, and each row of the conductive terminals includes a plurality of signal terminals And a plurality of ground terminals; and a grounding member, which is held by the insulating body, the grounding member includes two long sides disposed oppositely; the bottom wall of the insulating body is concavely provided along the first and second side walls, respectively Two extended mounting slots, two of the long sides are inserted into the mounting slot from bottom to top, the grounding member is provided with a plurality of elastic pins extending from the long sides, and the elastic pins one by one elastically abut the corresponding The ground terminal.

In order to solve the above technical problems, this creation can also adopt the following technical solutions:

A card edge connector, comprising: an insulating body, comprising a first side wall and a second side wall arranged oppositely and a bottom wall connecting the first side wall and the second side wall, an upward opening is formed between the first side wall and the second side wall The slot has an upward inner bottom surface, the bottom wall has a bottom surface; two rows of conductive terminals, fixed to the insulating body and arranged on the first side wall and the second side wall, each row of the conductive terminals It includes a plurality of signal terminals and a plurality of ground terminals; and a grounding member, which includes two long sides opposite to each other, which are respectively fixed on the first and second side walls of the insulating body and are respectively located outside each row of conductive terminals The side edge is defined with an upper edge and a lower edge. The upper edge extends a plurality of elastic pins, and the elastic pins respectively abut the corresponding ground terminals; the upper edges of the two long side edges of the grounding member are respectively It is lower than the inner bottom surface of the card slot.

Compared with the prior art, the present invention has the following effects: the grounding member is installed on the bottom wall of the insulating body and is provided with a plurality of elastic pins, the elastic pins elastically abut against the ground terminal, thereby making the card edge connector high It has better frequency performance and simple structure.

Referring to the first to fourth and sixth figures, it discloses a card edge connector 100 of the present invention, which includes an elongated insulating body 10, two rows of conductive terminals 20 fixed to the insulating body 10, and fixed to the insulating The grounding member 30 of the body 10. The insulating body 10 includes a first side wall 11 and a second side wall 12 disposed oppositely, and a bottom wall 13 connecting the first side wall 11 and the second side wall 12. An upwardly opening slot 14 is formed between the first side wall 11 and the second side wall 12, and the slot 14 is used for inserting an electronic card. As shown in FIG. 6, the slot 14 has an inner bottom surface 141. The inner bottom surface 141 and the bottom surface 133 are two opposite surfaces of the bottom wall 13 respectively. There is a mutual relationship between the bottom wall 13 and the first and second side walls 11 and 12 Overlapping parts. The first and second side walls 11 and 12 are long walls, and both ends of the two long walls are connected to each other by short walls 15 respectively. The above-mentioned slot 14 is formed between the two long walls, the two short walls 15 and the bottom wall 13. The two rows of conductive terminals 20 are arranged on the first side wall 11 and the second side wall 12, respectively. Both the first side wall 11 and the second side wall 12 are provided with a plurality of terminal grooves, that is, a plurality of first terminal grooves 110 located on the first side wall 11 and a plurality of second terminal grooves 120 located on the second side wall 120. The plurality of first terminal slots 110 and the plurality of second terminal slots 120 respectively accommodate conductive terminals 20, that is, the conductive terminals 20 are arranged in two rows of conductive terminals. The conductive terminal 20 includes a vertical body portion 201, a butt portion 202 extending upward from the body portion 201, and a welding portion 203 extending downward from the body portion 201.

Referring to the fifth to eighth drawings, each row of conductive terminals 20 includes a plurality of signal terminals 21 and a plurality of ground terminals 22. The plurality of first terminal slots 110 accommodates a plurality of signal terminals 21 and a plurality of ground terminals 22. The plurality of second terminal slots 120 also accommodate a plurality of signal terminals 21 and a plurality of ground terminals 22. The grounding member 30 is attached to the bottom wall 13. The grounding member 30 is provided with a plurality of elastic pins 34, and the plurality of elastic pins 34 are elastically abutted against the corresponding plurality of ground terminals 22 one by one. The grounding member 30 includes two long sides 31 and a pair of short sides 32 connecting the two long sides 31. The elastic pins 34 extend from the long sides 31. The elastic pins 34 of the two long sides 31 elastically contact the ground terminals 22 of the first side wall 11 and the second side wall 12, respectively. The ground terminal 22 includes a body portion 221 extending vertically, a butting portion 222 extending upward from the body portion 221, and a welding portion 223 extending downward from the body portion 221. The body portion 221 is fixed to the first and second side walls 11 and 12. The signal terminal 21 is similar to the ground terminal 22 and will not be described again. The elastic pin 34 elastically abuts the main body portion 221 of the ground terminal 22. Each long side 31 has an upper edge 316 and a lower edge 317. The elastic pin 34 includes an inclined portion 341 extending upward from the long side 31 and a contact portion 342 extending upward from an extended end of the inclined portion 341 The portion 342 elastically abuts the main body portion 221, that is, the elastic pin 34 extends upwardly and inwardly from the upper edge 316. The contact portion 342 is arc-shaped and located at the end of the inclined portion 341. The elastic pins 34 of the two long sides 31 opposite to each other are arranged staggered from each other. The long side 31 is also provided with a plurality of holding portions 33 that vertically extend upward from the upper edge 316 and interfere with the insulating body 10 to hold the grounding member 30 on the insulating body 10. The plurality of holding portions 33 and the plurality of elastic pins 34 on the same long side 31 are spaced apart. The two long sides 31 are disposed outside the two rows of conductive terminals 20.

Referring to the sixth and seventh figures, the bottom wall 13 of the insulating body 10 is concavely provided with two mounting grooves 130 extending along the first and second side walls 11 and 12, respectively, and the mounting grooves 130 respectively penetrate down the bottom surface 133 along the two long walls. The grounding member 30 is mounted to the bottom wall 13 from bottom to top, wherein the two long sides 31 are vertical walls and are inserted and fixed in the mounting groove 130 from bottom to top, and the short sides 32 are horizontal walls and attached to the bottom wall 13的 底面 132. Each of the first and second side walls 11 and 12 is provided with an interference groove 132 and a ground groove 131 connecting the terminal grooves 110/120 and the mounting groove 130. The mounting grooves 130 provided on both sides of the bottom wall 13 communicate with the interference grooves 132 and the grounding grooves 131 in the first and second side walls 11 and 12, respectively. The elastic pin 34 passes through the ground groove 131 to achieve contact with the ground terminal 22. The two sides of the above-mentioned holding portion 33 protrude outward to interfere with the interference groove 132 so that the grounding member 30 is held in the insulating body 10. The width of the holding portion 33 in the longitudinal direction is larger than the width of the elastic pin 34 in the longitudinal direction. Then, after the grounding member 30 is inserted and installed, the two rows of conductive terminals 20 are installed into the terminal grooves 110/120 from the bottom surface 132. The welding legs of each row of conductive terminals 20 are needle-shaped and are laterally offset so that the welding parts 203 of the same row of conductive terminals 20 are arranged in two rows of welding parts 203 inside and outside. As can be seen from the sixth figure, the top end of the vertical body portion 201 of the conductive terminal 20 is higher than the inner bottom surface 141 of the slot 14, and the upper edge 316 of the long side 31 of the grounding member 30 is lower than the inside of the slot 14 The bottom surface 141 and the contact portion 342 of the elastic pin 34 are substantially flush with the inner bottom surface 141. The lower edge 317 of the long side 31 of the grounding member 30 is substantially flush with the bottom surface 133. From the bottom to the top, the lower edge 317 overlaps with the outermost row of welding parts 204 or is located inside the outermost welding feet.

In this creation, the transfer rate of the card edge connector 100 is at least 16 Gps to meet the PCIE 4.0 transmission requirements. Therefore, the card edge connector 100 needs to have a short ground path and prevent signal interference between the terminals. The grounding member 30 is provided with two rows of elastic pins 34. The two rows of elastic pins 34 elastically abut against the ground terminals 22 of the first side wall 11 and the second side wall 12 that are opposite to each other. The elastic pins of the two long sides 31 of the creation satisfy the requirement of reducing signal interference during the signal transmission of the high-frequency connector terminal, and at the same time, the height in the up and down directions is small, reducing the occupation of the connector area. The long side 31 is inserted into the mounting groove 130 from the bottom surface 133 and has a small height, which reduces the probability of grooving the insulating body 10, thereby ensuring that the connector has sufficient strength, and also simplifies the assembly relationship of the connector. Compared with the conventional technology, the card edge connector 100 has a simple structure, lower production cost, and better shielding effect.

In summary, this creation has indeed met the requirements for creating a patent, and a patent application has been filed in accordance with the law. However, the above is only a preferred embodiment of this creation, and it cannot be used to limit the scope of the rights of this creation. Any equivalent modifications or changes made by those with ordinary knowledge in the technical field to which they belong in the spirit of this creation are still covered by the scope of the attached patent application.

100‧‧‧Card edge connector

10‧‧‧Insulation body

11‧‧‧ First side wall

110‧‧‧First terminal slot

12‧‧‧Second side wall

120‧‧‧Second terminal slot

13‧‧‧Bottom wall

130‧‧‧Mounting slot

131‧‧‧Grounding slot

132‧‧‧Interference groove

133‧‧‧Bottom

14‧‧‧Card slot

141‧‧‧Inner bottom

20‧‧‧Conductive terminal

201‧‧‧Main part

202‧‧‧ Docking Department

203‧‧‧Welding Department

204‧‧‧Outer row welding feet

21‧‧‧Signal terminal

22‧‧‧Ground terminal

221‧‧‧Main part

222‧‧‧ Docking Department

223‧‧‧Welding Department

30‧‧‧Grounding piece

31‧‧‧Long side

311‧‧‧upper edge

312‧‧‧Lower edge

33‧‧‧Card Department

34‧‧‧Elastic pin

341‧‧‧ Inclined part

342‧‧‧Abutment Department

32‧‧‧Short side

The first figure is a perspective view of the original card edge connector; the second figure is a perspective view of the card edge connector shown in the first figure from another perspective; the third figure is an exploded perspective view of the card edge connector shown in the second figure; Figure 4 is a perspective exploded view of the card edge connector shown in Figure 3 from another perspective; Figure 5 is a perspective view of the grounding member shown in Figure 4; Figure 6 is a card edge connector shown in Figure 1 along VI -A cross-sectional view in the VI direction; a seventh cross-sectional view of the card edge connector shown in the first figure along the VII-VII direction; and a partial enlarged view of the card edge connector shown in the third figure in the eighth figure.

Claims (13)

A card edge connector, comprising: an elongated insulating body, comprising a first side wall and a second side wall oppositely arranged and a bottom wall connecting the first side wall and the second side wall, between the first side wall and the second side wall An upwardly-opening slot is formed, the slot has an upward inner bottom surface; two rows of conductive terminals are fixed to the insulating body and arranged on the first side wall and the second side wall, respectively, and each row of the conductive terminals includes a plurality of signal terminals And a plurality of ground terminals; and a grounding member, which is held on the insulating body, and the grounding member includes two opposite long sides; wherein the bottom wall of the insulating body is recessed along the first and second sides, respectively Two mounting grooves extending on the side wall, the two long sides are inserted into the mounting groove from bottom to top, the grounding member is provided with a plurality of elastic pins extending from the long sides, and the elastic pins are elastically abutted one by one Corresponding to the ground terminal. The card edge connector as described in item 1 of the patent application scope, wherein each of the long sides has an upper edge and a lower edge, and the elastic pin extends obliquely upward and inward from the upper edge to abut against the corresponding For the ground terminal, the upper edge of the long side is lower than the inner bottom surface of the clamping slot. The card edge connector as described in item 1 of the patent application scope, wherein the first and second side walls are provided with a terminal groove for accommodating the conductive terminal and a grounding groove connecting the terminal groove and the mounting groove. The elastic pin passes through the grounding groove and abuts against the grounding terminal. A card edge connector as described in item 3 of the patent application range, wherein the long side is further provided with a plurality of holding portions extending vertically from the upper edge thereof, and the first and second side walls are provided with interference grooves, The clamping portion is inserted into the corresponding interference groove and fixed. The card edge connector as described in item 4 of the patent application range, wherein the plurality of holding portions and the plurality of elastic pins on the same long side are spaced apart. The card edge connector as described in item 5 of the patent application scope, wherein the two elastic pins on the opposite long sides disposed opposite to each other are arranged staggered from each other. The card edge connector as described in item 1 of the patent application scope, wherein two of the long sides are vertical walls and are located outside the two rows of the conductive terminals. The card edge connector according to item 1 of the patent application scope, wherein the grounding member further includes a short side connecting the two long sides, the short side is a horizontal wall and is attached to the insulating body The underside. The card edge connector as described in item 1 of the patent application range, wherein the elastic pin includes an inclined portion extending upward from the long side and an abutting portion extending upward from an extended end of the inclined portion, The contact portion elastically contacts the ground terminal. The card edge connector according to item 1 of the patent application scope, wherein the ground terminal includes a vertical main body portion, a butt portion extending upward from the main body portion, and a welding portion extending downward from the main body portion The elastic pin elastically abuts the main body. A card edge connector, comprising: an insulating body, comprising a first side wall and a second side wall arranged oppositely and a bottom wall connecting the first side wall and the second side wall, an upward opening is formed between the first side wall and the second side wall The card slot has an upward inner bottom surface, the bottom wall has a bottom surface; two rows of conductive terminals, fixed to the insulating body and arranged on the first side wall and the second side wall respectively, each row of the conductive terminals It includes a plurality of signal terminals and a plurality of ground terminals; and a grounding member, which includes two long sides opposite to each other, which are respectively fixed on the first and second side walls of the insulating body and are respectively located on the outside of each row of conductive terminals, each long The side edge defines an upper edge and a lower edge, the upper edge extends a plurality of elastic pins, and the elastic pins respectively abut the corresponding ground terminals; wherein the upper edges of the two long side edges of the ground member Are respectively lower than the inner bottom surface of the clamping slot. According to the card edge connector described in item 11 of the patent application scope, the lower edge of the grounding member is flush with the bottom surface of the bottom wall. The card edge connector as described in item 11 of the patent application range, wherein the conductive terminal includes a vertical body portion, a butt portion extending upward from the body portion, and a welding portion extending downward from the body portion, in the same row The soldering portions of the conductive terminals are laterally offset from each other to form two rows of inner and outer soldering portions; from the bottom to the top, the long side of the grounding member and the corresponding outer row soldering portion overlap each other or are located inside the outer row soldering portion .