TWM623130U - Card edge connector - Google Patents

Abstract

The present invention is a card edge connector, which includes an insulating body, which includes opposite front ends and a rear end surface and a card slot running through the front end surface; a row of first terminals and a row of second terminals include a fixing part, an elastic part extending from the fixing part to the card slot, and a pin, the elastic part has a protruding into the card slot The fixed part of the first terminal is located near the front end surface, the fixed part of the second terminal is located near the rear end surface, the fixed part protrudes forward from the front edge of the first interference part and the second interference part, the first 1. The second interference portion is fixed on the insulating body; a row of second terminals includes a signal terminal and a grounding terminal, the grounding member is provided with a plurality of grounding fingers, and the grounding fingers abut on the second interference portion corresponding to the grounding terminal. The grounding piece is located in the insulating body, which can improve the high frequency and strengthen the strength of the connector.

Description

card edge connector

The present creation relates to a card edge connector.

Chinese utility model patent No. CN210628555U discloses a DDR connector. The connector includes a socket and brackets connected to both ends of the socket, the socket is provided with a slot, the two ends of the socket are respectively provided with a first terminal hole and a second terminal hole, and the first terminal hole is in the socket. A first terminal is arranged, a second terminal is arranged in the second terminal hole, a first insertion hole and a second insertion hole are arranged at one end of the bracket close to the socket, and a first insertion hole is inserted into the first insertion hole. A support plate, the support plate is located directly below the bracket, and the support plate includes a first plug portion inserted into the first socket, and a backing plate portion connected to one end of the first plug portion , a support part connected to the lower side of the middle part of the backing plate part, a mounting part connected to the bottom of the support part, and a first bending part connected to the upper side of the end of the backing plate part, the second insertion hole is A side baffle is inserted, the side baffle is located on the outside of the bracket, and the side baffle includes a second insertion part inserted into the second insertion hole and connected to the second insertion part The side plate part at one end, the second bending part and the third bending part respectively connected to the upper and lower sides of the end of the side plate part; The upper end of the clamping part is buckled and connected, and the third bending part is sandwiched between the first bending part and the supporting part. However, as the speed increases, the performance requirements for signal transmission become higher, and the above-mentioned DDR connectors cannot meet the requirements.

Therefore, it is necessary to provide an improved card edge connector to solve the above problems.

The purpose of this creation is to provide a card edge connector which can improve high frequency transmission performance.

In order to achieve the above purpose, the present invention can adopt the following technical solutions: a card edge connector, which includes: an insulating body, which includes an opposite front end surface and a rear end surface, and a card slot passing through the front end surface; a row of first terminals, It includes a fixing portion, an elastic portion extending from the fixing portion to the slot, and a pin, the elastic portion has a contact portion protruding into the slot, and the fixing portion of the first terminal is fixed on the insulating body adjacent to the front face; a row of second terminals, tied to the It includes a fixing portion, an elastic portion extending from the fixing portion to the card slot, and pins, the elastic portion has a contact portion protruding into the card slot, and the fixing portion of the second terminal is fixed on the insulating body Adjacent to the rear end face, the fixed portion protrudes forward from its front edge with a first interference portion and a second interference portion, and the first and second interference portions are fixed on the insulating body; a row of the first interference portion and the second interference portion are The two terminals include a signal terminal and a ground terminal. The ground member is provided with a plurality of ground fingers, and the ground fingers abut against the second interference portion corresponding to the ground terminal.

Compared with the prior art, the present invention has the following effects: the grounding member is located in the insulating body, which can improve the high frequency and strengthen the strength of the connector.

100: Card edge connector

10: Insulation body

11: Front face

12: rear face

21, 31: Elastic part

210, 310: Contact part

22, 32: Fixed part

241, 341: The first interference part

13: Card slot

142, 152: fixed slot

143, 153: Through groove

154: Escape trough

16: Retaining slot

171: Longitudinal slot

172: Containment Slot

20: The first terminal

900: circuit board

242, 342: Second Interference Section

23, 33: pin

30: Second terminal

30G: Ground terminal

30S: Signal terminal

40: Grounding parts

41: Horizontal plate

42: Ground finger

The first picture is a perspective view of the card edge connector of this creation; the second picture is a perspective view of the card edge connector shown in the first picture from different angles; the third picture is an exploded perspective view of the part of the structure shown in the second picture; the fourth picture It is a sectional view along the dashed line IV-IV in the card edge connector shown in the first figure; the fifth figure is a sectional view along the dashed line VV in the card edge connector shown in the first figure; the sixth figure is shown in the first figure. Sectional view of the card edge connector along the dashed line VI-VI.

In order to facilitate a better understanding of the purpose, structure, features, and effects of the present creation, the present creation will now be further described with reference to the accompanying drawings and specific embodiments.

Please refer to Figures 1 to 6, which are the card edge connector 100 for inserting an M.2 module or M.2 card for transmitting PCI-EXPRESS signals. The specific structure will be described in detail below.

Referring to the first to third figures, the card edge connector 100 includes an insulating body 10 , a row of first terminals 20 , a row of second terminals 30 and a grounding member 40 . The insulating body 10 includes a front end surface 11 and a rear end surface 12 opposite to each other, and a slot 13 penetrating through the front end surface 11 . Referring to the fourth figure, the card slot 13 penetrates forward, and the upper wall of the card slot is shorter and is located behind the lower wall, which is used for the oblique insertion of the electronic card.

Referring to FIG. 4 , the first terminal 20 is inserted into the insulating body 10 backward from the front end surface 11 . The first terminal 20 includes a fixing portion 22 , an elastic portion 21 extending from the fixing portion to the slot 13 , and a pin 23 . The elastic portion 21 has a contact portion 210 protruding into the slot. The fixing portion 22 of the first terminal is fixed on the insulating body adjacent to the front end surface 11 . The fixing portion 22 of the first terminal is vertical, and includes a first stem protruding backward. The interfering portion 241 and the second interfering portion 242 are arranged in the up-down direction. The first interfering portion 241 is located at the junction of the fixed portion 22 and the elastic portion 21 , and the second interfering portion 242 is located adjacent to the pin 23 . . The insulating body 10 is provided with a plurality of vertical grooves (not numbered, that is, the place to be accommodated by the fixing portion 22 ) whose front end faces backwards, a fixing groove 142 extending backwards from the vertical groove, and a connecting slot at the top of the vertical groove. The fixing part 22 of the first terminal is accommodated in the vertical groove, the first and second interference parts are firmly interfering and fixed in the fixing groove 142, and the elastic part 21 is accommodated in the through groove 143, and is in the penetrating groove 143. The groove 143 can be elastically deformed. Both sides of the fixing part are fixed in the vertical groove interferingly, and the heads of the first and second interference parts have barbs to increase the hard interference force.

Referring to FIG. 5 , the second terminal 30 includes a fixing portion 32 , an elastic portion 31 extending from the fixing portion to the slot 13 , and a pin 33 . The elastic portion 31 has a contact portion 310 protruding into the slot. The fixing portion 32 of the second terminal is fixed at a position adjacent to the rear end surface 12 of the insulating body. The fixing portion 32 of the second terminal is vertical, and includes a first interference portion 341 and a second interference portion 342 that protrude backward. The first and second interference portions are arranged in the up-down direction, and the first interference portion 341 is located at the fixed position. At the junction of the portion 32 and the elastic portion 31 , the second interference portion 342 is located adjacent to the pin 33 . The insulating body 10 is provided with a plurality of vertical grooves (not numbered, ie, the places accommodated by the fixing portion 32 ) whose rear ends face forward and are recessed, a horizontal groove 152 extending backward from the vertical grooves, and located above the vertical grooves and is self-contained. The rear end faces forward and penetrates to the through slot 153 of the card slot, the fixing portion 32 of the second terminal is accommodated in the vertical slot, the first and second interference portions are firmly interfered and fixed in the fixing slot 152, and the elastic portion 31 is accommodated in The penetrating groove 153 can be elastically deformed in the penetrating groove 143 . Both sides of the fixing portion 32 are fixed in the vertical groove in an interference manner, and the head of the first and second interference portions have barbs to increase the hard interference force. The front and rear surfaces 11 and 12 are provided with a plurality of escape grooves 154 parallel to the horizontal grooves for improving the process.

Referring to Figures 4 to 5, the contact portion 210 of the first terminal extends into the slot 13 from front to rear, the contact portion 310 of the second terminal extends into the slot 13 from the back to the front; the contact portion 210 of the first terminal Located in front of the contact part 310 of the second terminal and lower than the contact part of the second terminal, the elastic parts 21 and 31 can be elastically deformed, so that the contact parts 210 and 310 can rotate at a small angle in the slot for supplying After the electronic card is inserted obliquely, a stable electrical connection is achieved.

Referring to Figures 5 to 6, a row of second terminals 30 includes a signal terminal 30S and a ground terminal 30G. The basic structure of the signal terminal and the ground terminal is the same. The second terminal 30 is formed by stamping a metal plate. The plane is perpendicular to the arrangement direction of the second terminals 30 , the fixing portion 32 is vertical, and the aforementioned interference portions 341 and 342 protrude forward from the front edge of the fixing portion 32 . Referring to Figures 3 to 5, the grounding member 40 is a one-piece horizontal plate-like structure, including the horizontal plate 41 structure and the inclined direction For the grounding fingers 42 extending downward, an opening is formed on the horizontal plate corresponding to each grounding finger, and the grounding fingers are formed to extend backward and obliquely downward from the front edge of the opening. The grounding member is horizontally fixed in the insulating body 10 and located in front of the second terminal 30 . The grounding member is located above the second interference portion 342 , and the grounding member extends downward into the fixing groove 152 to achieve electrical contact with the second interference portion. The grounding member may also be located adjacent to the bottom of the first interference portion 341 , and the grounding fingers 42 extend upward obliquely to abut against the first interference portion 341 .

The insulating body 10 is provided with a longitudinal groove 171 recessed forward from the rear end surface 12 and a plurality of receiving grooves 172 located below the longitudinal groove. The horizontal plate 41 of the grounding member is clamped in the longitudinal groove and grounded. The fingers 42 extend downward into the receiving groove. The longitudinal grooves are connected horizontally along the terminal arrangement direction, and the receiving grooves are arranged one by one at intervals. The holding grooves 152 are located below the receiving grooves and communicate with each other, and the grounding fingers 42 and the second interference portion 142 are in electrical contact with each other in the holding grooves and the receiving grooves.

The grounding fingers 42 are in contact with the grounding terminal 30G, so that the grounding terminal 30G and the grounding member are electrically connected to each other. The ground terminals 30G in a row of the second terminals are connected together through the grounding member to improve the resonance between the terminals, thereby improving the electrical performance of the card edge connector in terms of return loss, insertion loss, and crosstalk. Further, the grounding member 40 is clamped in the insulating body and located between the two interference parts 341 and 342 of the second terminal 30 , which can increase the strength of the insulating body 10 and does not occupy external space, which is beneficial to the miniaturization of the electrical connector. . In other embodiments, if the first terminal also includes a grounding terminal, a grounding member may be disposed behind the first terminal, and the grounding finger of the grounding member may abut the first or/and the second grounding terminal of the first terminal Interference Department.

To sum up, this creation meets the requirements of a new type of patent, and a patent application is filed in accordance with the law. However, the above descriptions are only the preferred embodiments of the present creation, and the scope of the present creation is not limited to the aforementioned embodiments. Equivalent modifications or changes made by those who are familiar with the techniques of the present case in accordance with the spirit of the present creation are all applicable. Should be covered within the scope of the following patent applications.

11: Front face

13: Card slot

171: Longitudinal slot

172: Containment Slot

152: Fixed slot

153: Through slot

310: Contact Department

30G: Ground terminal

341: First Interference Department

342: Second Interference Section

42: Ground finger

41: Horizontal plate

Claims (10)

A card edge connector, comprising: an insulating body including opposite front and rear surfaces, and a card slot penetrating the front end; a row of first terminals including a fixing part, from the fixing part to the card The elastic portion and the pins extending from the slot, the elastic portion has a contact portion that protrudes into the slot, the fixing portion of the first terminal is fixed on the front end face of the insulating body; a row of second terminals is It includes a fixing portion, an elastic portion extending from the fixing portion to the card slot, and a pin, the elastic portion has a contact portion protruding into the card slot, and the fixing portion of the second terminal is fixed on the insulating body Adjacent to the rear end face, the fixing portion protrudes forward from its front edge with a first interference portion and a second interference portion, and the first and second interference portions are fixed on the insulating body; and a grounding member, which is is fixed in the insulating body; wherein a row of the second terminals includes a signal terminal and a ground terminal, the ground member is provided with a plurality of ground fingers, and the ground fingers abut against the second interference portion corresponding to the ground terminal. The card edge connector of claim 1, wherein the fixing portion of the second terminal is vertical, the first interference portion is located at the junction of the fixing portion and the elastic portion, and the second interference portion is adjacent to the pin. The card edge connector of claim 2, wherein the grounding member is horizontally fixed in the insulating body and located in front of the second terminal. The card edge connector of claim 3, wherein the grounding member is located above the second interference portion, and the grounding fingers extend downward obliquely. The card edge connector according to claim 1, wherein the grounding member is located below the first interference portion, and the grounding finger extends upward obliquely to abut against the first interference portion. The card edge connector of claim 1, wherein a row of the second terminals is inserted into the front end surface of the insulating body from front to back, and the fixing portion is vertical and includes first and second interference protruding backwards. The first interference portion is located at the junction of the fixed portion and the elastic portion, and the second interference portion is located adjacent to the pin. The card edge connector of claim 4, wherein the grounding member is substantially a horizontal plate structure, the horizontal plate forms an opening corresponding to each grounding finger, the grounding finger is rearward from the front edge of the opening and Extends sloping downwards. The card edge connector according to claim 7, wherein the insulating body is provided with a longitudinal groove recessed from the rear end to the front and a plurality of receiving grooves located below the longitudinal groove, and the horizontal plate of the grounding member is It is held in the horizontal groove, and the grounding finger extends downward into the receiving groove. The card edge connector according to claim 8, wherein the longitudinal grooves communicate horizontally along the terminal arrangement direction, and the receiving grooves are spaced one by one. The card edge connector according to claim 9, wherein the insulating body further comprises a holding groove located below the receiving groove and communicated with each other, the second interference portion of the second terminal is held in the holding groove, and the second interference portion of the second terminal is held in the holding groove. The ground finger and the second interference portion are in contact with each other.

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