TWM577194U - Card edge connector - Google Patents

Abstract

A card edge connector for inserting a butt card provided with a notch, the card edge connector comprising an elongated insulating body, a plurality of conductive terminals and a metal holding member, the insulating body being provided with a slot for docking the card insertion Two side walls on opposite sides of the slot, and two end portions connecting opposite ends of the two side walls, the plurality of conductive terminals are mounted on the corresponding side walls, and the end portions are provided with a front open holding groove, the metal holding member The utility model comprises a vertical wall extending in the front-rear direction and a fastening arm and an abutting arm extending rearward from the vertical wall, the fastening arm and the abutting arm are arranged one above another and inserted into the holding groove, and the buckle is buckled Holding on the upper inner wall of the holding groove, the abutting arm only abuts against the lower inner wall of the holding groove without a holding action. The abutting arm can control the flatness of the metal fastening member to facilitate welding of the metal fastening component to the external circuit board.

Description

Card edge connector

The present invention relates to a card edge connector, and more particularly to a card edge connector that facilitates soldering to an external circuit board.

For a conventional technique, please refer to the Republic of China New Patent No. TW406885 published on September 21, 2000, which discloses a card edge connector including an insulative housing and a plurality of conductive terminals mounted on the insulative housing. The insulative housing includes an elongated body portion. The body portion includes first and second side walls that face each other. A slot is formed between the first side wall and the second side wall. The card edge connector further includes a fastening member mounted on both sides of the insulating body. The holding member includes a main body portion and two holding arms extending rearward from the main body portion and arranged in parallel in the upper and lower sides. Both of the clamping arms include a hook, and the hook is fastened to the insulating body. The clamping arm is provided with a soldering piece welded to an external circuit board. Since the holding arm is fixed to the insulating body, the flexibility is low, and the soldering piece on the holding arm is not easy to cooperate with the soldering piece on the external circuit board.

Therefore, it is necessary to design a scheme to improve the above problems.

The technical problem to be solved by this creation is to provide a card edge connector that is easy to solder to an external circuit board.

In order to solve the above technical problem, the present invention provides a card edge connector for inserting a butt card provided with a notch, the card edge connector comprising an elongated insulating body, a plurality of conductive terminals and a metal holding member, The insulative housing is provided with a slot for mating the card, on the opposite side of the slot Two side walls and two end portions connecting opposite ends of the two side walls, the plurality of conductive terminals are mounted on the respective side walls, the end portions are provided with a holding groove that is open to the front, and the metal holding member includes a front and rear direction extending a vertical wall, a latching arm extending rearward from the vertical wall and an abutting arm, the latching arm and the abutting arm are arranged one above another and inserted into the retaining slot, and the latching arm is fastened in the retaining slot The upper inner wall, the abutting arm only abuts against the lower inner wall of the holding groove without a latching action.

Further, the end of the latching arm is provided with an upwardly protruding hook, and the retaining slot is provided with a latching portion extending downward from the top wall of the end portion, and the hook is fastened to the The retaining portion is configured to fix the metal fastening member to the end portion.

Further, the metal fastening member is provided with a fastening portion for fastening to a notch of the docking card, and a pressing piece disposed adjacent to the fastening portion for pressing the docking card. The pressing piece extends inwardly and downwardly from the top edge of the vertical wall, and the pressing piece has an inclined guiding portion and a distal end portion which is bent backward from the guiding portion and located below the guiding portion. A connecting surface having a smooth arc shape is formed between the guiding portion and the end portion.

Further, the slot is open to the front, and the two ends extend forward beyond the two side walls. The number of the metal fastening members is two and an inner receiving space is arranged, and each metal holding member is mounted at one end. unit.

Further, the fastening portion is formed to extend horizontally from the top edge of the vertical wall to the receiving space and then vertically downward.

Further, each of the metal fastening members includes a support portion extending horizontally from a bottom edge of the vertical wall toward the receiving space, the support portion for supporting the docking card.

Further, the rear end of the holding groove is provided with a stopping portion extending upward from the lower inner wall thereof.

Further, the width of the latching arm in the up and down direction gradually becomes smaller.

Further, the holding arm and the abutting arm are in the same plane.

Further, the end portion and the guiding portion are closely attached together.

Compared with the prior art, the present invention has the following effects: since the abutting arm of the metal holding member and the insulating body are not fixed to each other, it is easy to adjust the flatness of the metal holding member, thereby facilitating welding of the metal holding member to the external circuit board. .

100‧‧‧ card edge connector

10‧‧‧Insulated body

11‧‧‧Slot

12‧‧‧ side wall

121‧‧‧ first side

122‧‧‧second side wall

123‧‧‧First terminal receiving slot

124‧‧‧Second terminal receiving slot

13‧‧‧End

131‧‧‧ holding slot

132‧‧‧stops

133‧‧‧Card Department

134‧‧‧Upper inner wall

135‧‧‧ under the inner wall

14‧‧‧Danger Prevention Department

20‧‧‧Electrical terminals

21‧‧‧First conductive terminal

211‧‧‧First Fixed Department

212‧‧‧First Elastic Department

213‧‧‧First Welding Department

22‧‧‧Second conductive terminal

221‧‧‧Second fixed department

222‧‧‧Second elastic department

223‧‧‧Second welding department

30‧‧‧Metal holding parts

31‧‧‧ vertical wall

32‧‧‧Bucking arm

320‧‧‧ buckle

33‧‧‧Abutment arm

34‧‧‧Detention Department

341‧‧‧ horizontal department

342‧‧‧ vertical

35‧‧‧ tablet

351‧‧‧Guide

352‧‧‧End

353‧‧‧ Connection surface

36‧‧‧Support

37‧‧‧welding piece

600‧‧‧ docking card

60‧‧‧ Sockets

601‧‧‧ Gold Finger

602‧‧‧Defense slot

61‧‧‧Edge

611‧‧‧through hole

612‧‧ ‧ gap

100'‧‧‧ card edge connector

10’‧‧‧Insulated body

20'‧‧‧Electrical terminals

30’‧‧‧Metal holding parts

35’‧‧‧ Tablets

350'‧‧‧ notch

351’‧‧‧Guide

352’ ‧ ‧ end

353’‧‧‧ Connection surface

354’‧‧‧ first half

355’‧‧‧The second half

600’‧‧‧ docking card

The first figure is a perspective view of the first embodiment of the card edge connector and the docking card assembled together; the second figure is an exploded perspective view of the card edge connector shown in the first figure; the third figure is shown in the second figure A perspective view of the metal holding member; the fourth drawing is an enlarged view of the circled portion shown in the third figure; the fifth drawing is a cross-sectional view along the VV direction shown in the first figure; - sectional view in the VI direction; the seventh drawing is a perspective view of the card edge connector and the docking card assembled in the second embodiment of the present invention.

The eighth figure is an exploded perspective view of the card edge connector shown in the seventh figure.

The ninth drawing is a perspective view of the metal holding member shown in the eighth figure.

The tenth figure is an enlarged view of the circled part shown in the ninth figure.

The eleventh figure is a cross-sectional view taken along the XI-XI direction shown in the seventh figure.

Referring to the first to sixth figures, the present invention provides the card edge connector 100 of the first embodiment for inserting the docking card 600. The docking card 600 includes a plug portion 60 and two edge portions 61. The upper and lower surfaces of the plug portion 60 are respectively provided with a plurality of gold fingers 601 and a foolproof groove 602 penetrating in the up and down direction. The portions 61 are each provided with a through hole 611 near the gold finger 601 and a notch 612 away from the gold finger 601. The notch 612 penetrates the edge portion 61 outward, and the through hole 611 is located inside the edge portion 61.

The card edge connector 100 includes an elongated insulating body 10, a plurality of conductive terminals 20 arranged along the longitudinal direction, and two metal holding members 30 disposed in the front-rear direction. The two metal holding members 30 are surrounded by an inner receiving space (not labeled) for receiving and snapping the mating card 600 inserted into the card edge connector 100. The insulative housing 10 is provided with a slot 11 for inserting the docking card 600 in the front-rear direction, two side walls 12 on both sides of the slot 11, and a foolproof portion 14 connected between the two side walls 12. When the docking card 600 is inserted into the card edge connector 100 in the correct direction, the plug portion 60 is inserted into the slot 11, the gold finger 601 is in contact with the conductive terminal 20, and the foolproof portion 14 is received in the foolproof groove 602.

The two sidewalls 12 include a first sidewall 121 and a second sidewall 122 under the first sidewall 121. The plurality of conductive terminals 20 include a row of first conductive terminals 21 mounted on the first sidewall 121 and mounted on the second sidewall 122. A row of second conductive terminals 22. The first side wall 121 is provided with a row of first terminal receiving slots 123, and the second side wall 122 is provided with a row of second terminal receiving slots 124. The first conductive terminals 21 are inserted into the first terminal receiving slots 123 in a front-to-rear direction, and second. The conductive terminal 22 is inserted and mounted to the second terminal receiving groove 124 in a direction from the rear to the front. The first conductive terminal 21 has a first fixing portion 211 fixed to the first terminal receiving groove 123, a first elastic portion 212 extending rearward from the first fixing portion 211 and protruding upward into the slot 11, and the first fixing portion The portion 211 extends forward and beyond the first weld portion 213 of the first side wall 121. The second conductive terminal 22 has a second fixing portion 221 fixed to the second terminal receiving groove 124, a second elastic portion 222 extending forward from the second fixing portion 221 and protruding downward into the slot 11, and The second fixing portion 221 extends rearward and extends beyond the second welded portion 223 of the second side wall 122. The first soldering portion 213 and the second soldering portion 223 both extend horizontally in the front-rear direction and are on the same horizontal surface for surface soldering (SMT) to the external circuit board.

The insulative housing 10 is provided with two end portions 13 connected to opposite ends of the two side walls 12. The slot 11 is open to the front, the two end portions 13 extend forward beyond the two side walls 12, and the two metal fastening members 30 are respectively mounted to the corresponding end portions 13. Each end portion 13 is provided with a holding groove 131 that is open to the front. The rear end of the holding groove 131 is provided with a stopper portion 132 that extends upward from the lower inner wall 135 of the holding groove 131. The metal clasp 30 is a one-piece structure. The metal holding member 30 includes a vertical wall 31 extending in the front-rear direction and a latching arm 32 and an abutting arm 33 extending rearward from the vertical wall 31. The latching arm 32 is in the same plane as the abutment arm 33. The latching arm 32 and the abutting arm 33 are arranged one above another and inserted into the retaining slot 131, and the latching arm 32 is fastened to the upper inner wall 134 of the retaining slot 131, and the abutting arm 33 only abuts against the retaining slot The lower inner wall 135 of 131 has no latching action. The width of the latching arm 32 in the up and down direction gradually decreases. The end of the latching arm 32 is provided with a hook 320 that protrudes upward. A holding portion 133 extending downward from the upper inner wall 134 is provided in the holding groove 131. The clasp 320 is fastened to the latching portion 133 for fixing the metal clasp 30 to the end portion 13. When the hook 320 is engaged with the catching portion 133, dust is easily generated, and the stopper portion 132 prevents the dust from being detached from the holding groove 131. The metal fastening member 30 is provided with a fastening portion 34 for fastening to the notch 612 of the docking card 600 and a pressing piece 35 for pressing the docking card 600 adjacent to the fastening portion 34. . The pressing piece 35 extends inwardly from the top edge of the vertical wall 31 and downwardly. The pressing piece 35 has an inclined guiding portion 351 and a distal end portion 352 which is bent in the opposite direction from the guiding portion 351 and located below the guiding portion 351. The tip end portion 352 and the guiding portion 351 are directly formed integrally from a metal plate member. The tip end portion 352 and the guiding portion 351 are closely attached together. A connecting surface 353 having a smooth arc shape is formed between the guiding portion 351 and the distal end portion 352. When the metal fastening member 30 is engaged with the docking card 600, the smooth arc-shaped connecting surface 353 prevents the pressing piece 35 from scratching the docking card 600. The latching portion 34 includes a horizontal portion 341 extending horizontally from the top edge of the vertical wall 31 toward the receiving space, and a vertical portion 342 extending vertically downward from the extending end of the horizontal portion 341. The latching portion 34 has an inverted U shape. The latching portion 34 is configured to be fastened to the notch 612 of the docking card 600. When the pressing piece 35 is in contact with the docking card 600, the light The sliding arc-shaped contact surface 353 prevents the tab 35 from scratching the docking card 600. Each of the metal fastening members 30 includes a supporting portion 36 extending horizontally from the bottom edge of the vertical wall 31 to the receiving space. The supporting portion 36 is configured to support the docking card 600 to prevent the docking card 600 from being pressed downward. And destroy the electronic components on the external circuit board (not shown). The metal clip 30 is also provided with a solder tab 37 that is soldered to an external circuit board.

7 to 11 show a card edge connector 100' according to a second embodiment of the present invention, which includes an elongated insulating body 10', a plurality of conductive terminals 20' arranged along the longitudinal direction, and two front and rear A metal fastener 30' is disposed in the direction. The structure is substantially the same as that of the first embodiment, and the differences will be mainly described below.

The guiding portion 351' includes a front half 354' adjacent to the insulative housing 10' and an opposite rear half 355'. The distal end portion 352' extends from the rear half 355'. A connection surface 353' having a smooth arc shape is formed between the rear half 355' and the end portion 352'. A gap is formed between the end portion 352' and the rear half 355'. There is a recess 350' between the front half 354' and the rear half 355'. The front edge of the front half 354' is tapered from front to back. The rear half 355' tends to generate burrs at its edges during the folding process. The docking card 600' is inserted obliquely into the slot 11'. During the downward pressing of the docking card 600', the front half 354' guides the docking card 600' to be inserted, resulting in the docking card 600' not being associated with the rear half 355'. The burr of the edge portion contacts and slides directly into the underside of the tablet 35', thereby preventing the burr on the rear half 355' from scratching the docking card 600'.

In summary, the creation has clearly met the requirements of the new patent, and filed a patent application in accordance with the law. However, the above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments. Equivalent modifications or changes made by those who are familiar with the creative techniques in accordance with the spirit of this creation shall be covered by the following patent applications.

Claims (10)

A card edge connector for inserting a butt card provided with a notch, the card edge connector comprising an elongated insulating body, a plurality of conductive terminals and a metal holding member, the insulating body being provided for inserting a docking card a socket, two side walls on opposite sides of the slot, and two end portions connecting opposite ends of the two side walls, wherein the plurality of conductive terminals are mounted on the corresponding side walls, and the end portion is provided with a holding groove that is open to the front, wherein The metal fastening member includes a vertical wall extending in the front-rear direction, a latching arm extending rearward from the vertical wall, and an abutting arm, the latching arm and the abutting arm are arranged one above another and inserted into the retaining slot The latching arm is fastened to the upper inner wall of the retaining groove, and the abutting arm only abuts against the lower inner wall of the retaining groove without a latching action. The card edge connector of claim 1, wherein the end of the fastening arm is provided with an upwardly protruding hook, and the holding groove is provided to extend downward from the top wall of the end portion. The latching portion is fastened to the latching portion for fixing the metal latching member to the end portion. The card edge connector of claim 1, wherein the metal fastening member is provided with a fastening portion for fastening to a notch of the docking card and a side adjacent to the fastening portion for Pressing the pressing piece of the docking card, the pressing piece extending obliquely inward and downward from a top edge of the vertical wall, the pressing piece having an inclined guiding portion and a reverse bending from the guiding portion A distal end portion that is folded downward and located below the guiding portion has a connecting surface with a smooth arc shape between the guiding portion and the distal end portion. The card edge connector of claim 1, wherein the slot is open to the front, the two end portions extend forward beyond the two side walls, and the number of the metal fastening members is two and an inner housing is provided. Space, each metal fastening member is mounted at one end. The card edge connector of claim 3, wherein the fastening portion is formed to extend horizontally from the top edge of the vertical wall to the receiving space and then vertically downward. The card edge connector of claim 1, wherein each of the metal fastening members includes a support portion extending horizontally from a bottom edge of the vertical wall toward the receiving space, the support portion for supporting the Docking cards. The card edge connector of claim 1, wherein the rear end of the holding groove is provided with a stopper extending upward from the lower inner wall thereof. The card edge connector of claim 1, wherein the width of the latching arm in the up and down direction is gradually reduced. The card edge connector of claim 1, wherein the latching arm and the abutment arm are in the same plane. The card edge connector of claim 3, wherein the end portion and the guiding portion are closely attached together.