TWI558017B - Card edge connector and assembly thereof - Google Patents

Description

Card edge connector and combination thereof

The present invention relates to a card edge connector and a combination thereof, and more particularly to a card edge connector for a lock electronic card and a combination thereof.

Card edge connectors are widely used in computer equipment to accommodate an electronic card, such as the DDR series. The conventional card edge connector generally includes an elongated insulating body, a plurality of conductive terminals held in the insulating body, and a locking mechanism mounted on both ends of the insulating body, wherein the insulating body is provided with a central slot extending in the longitudinal direction. The latch mechanism has a latching portion that is fastened to a side edge of the electronic card to receive the lower end edge of the electronic card. In order to effectively lock the electronic card so that the lower end edge is inserted into the position, such as the Taiwan Patent No. TW 426170, the locking portion protrudes downwardly with an interference portion, and when the locking portion is buckled into the gap of the electronic card, The interference portion may press down the electronic card to insert the lower edge of the electronic card into the position. However, the long-term repeated fastening of the locking portion to the gap of the electronic card may cause the interference portion to wear, resulting in the locking mechanism being There is a gap between the lower end of the latching portion and the notch of the electronic card in the latching state, so that the latching mechanism cannot effectively latch the electronic card and cause poor contact between the electronic card and the card edge connector. .

The current fourth-generation card edge connector (DDR4 connector), the fourth card edge connector relative to the previous generation of card edge connector, in order to meet higher demand, usually the number of conductive terminals will increase, and then the matching electronic The card will also increase the number of its gold fingers. In order to reduce the insertion and removal force between the electronic card and the insulating body, the US patent of Micron Technology Inc. No. 7,547,213 B2 discloses a solution for reducing the difficulty in plugging and unplugging between an electronic card and a card edge connector, which is designed by setting the middle portion of the lower edge of the electronic card to be higher than the two sides of the lower edge of the electronic card. In the process of inserting the electronic card into the card edge connector, the middle higher part of the electronic card is pre-inserted, and then the lower part of the two sides, so that the insertion force of the electronic card inserted into the card edge connector can be effectively reduced. However, while reducing the insertion and removal force of the electronic card, a new problem comes along, that is, the electronic card is easily shaken left and right after being inserted into the card edge connector, which may damage the gold finger of the electronic card and the conductive terminal of the card edge connector. Therefore, the stability of the lock between the lock mechanism and the electronic card is crucial.

Therefore, it is necessary to improve the conventional card edge connector to overcome the above drawbacks.

In view of the above, it is an object of the present invention to provide a card edge connector and a combination thereof that can reliably hold an electronic card.

In order to achieve the foregoing object, the object of the present invention is achieved by the following technical solution: a card edge connector for plugging an electronic card, comprising an elongated insulating body, a plurality of conductive terminals held in the insulating body, and The end portion of the insulative housing is used for locking the card locking mechanism of the electronic card. The insulative housing has a mating surface and a central slot for inserting the electronic card from the oppositely facing downward facing surface. The locking mechanism is provided with a locking button. a latching portion of the electronic card, the latching portion projecting a resilient protrusion that presses down the electronic card.

Further, the locking portion has an upper end surface and a lower end surface opposite to the upper end surface of the electronic card, and the elastic protruding portion integrally protrudes from the lower end surface.

Further, two sides of the lower end surface of the locking portion respectively protrude downwardly with a clamping wall for clamping and fixing the electronic card therebetween, and the elastic protruding portion is located between the two clamping walls.

Further, the locking portion has opposite front and rear end faces, the elastic protruding portion extends from the front end of the locking portion toward the rear end surface, and the rear end of the elastic protruding portion is a free end.

Further, the height of the elastic protrusion protruding from the lower end surface of the locking portion is lower than that of the clamping wall.

Further, the locking mechanism is pivotally engaged with the insulative housing, and the locking mechanism has a hollow body portion, the main body portion has upper and lower opposite upper and lower ends, and the locking portion is disposed at an upper end of the main body portion, the main body The lower end of the portion is provided with a retreating portion for retracting the electronic card.

To achieve the foregoing objects, the object of the present invention can also be achieved by the following technical solutions: a card edge connector assembly including a card edge connector and an electronic card inserted in the card edge connector, the card edge connector including The longitudinally-shaped insulating body, the plurality of conductive terminals held in the insulating body, and the locking mechanism disposed at the end of the insulating body for locking the electronic card, the electronic card has opposite side ends and at least one end is provided with an opening The locking mechanism is provided with a locking portion locked in the opening portion, the opening portion has upper and lower opposite top and bottom surfaces, and the locking portion protrudes against the bottom surface of the opening portion for pressing downward An elastic protrusion of the electronic card.

Further, the locking portion has upper and lower upper end faces and a lower end surface, and the elastic protruding portion integrally protrudes from the lower end surface.

Further, the two sides of the lower end surface of the locking portion respectively protrude downwardly with a clamping wall for clamping and fixing the electronic card therebetween, and the elastic protruding portion is located between the two clamping walls.

Further, when the locking portion is fastened in the opening portion, a gap exists between the upper end surface of the locking portion and the top surface of the opening portion.

Compared with the prior art, the present invention has the following beneficial effects: by protruding the elastic protruding portion in the locking portion, when the locking portion is fastened to the electronic card, the elastic protruding portion presses the electronic card downward In order to avoid the electronic card shaking.

100‧‧‧ card edge connector

1‧‧‧Insulating body

11‧‧‧ docking

12‧‧‧Central slot

13‧‧‧Tower

200‧‧‧electronic card

2‧‧‧Electrical terminals

201‧‧‧ docking end

2011‧‧‧Gold Finger

202‧‧‧ side

2021‧‧‧ openings

2022‧‧‧ top surface

2023‧‧‧ bottom

203‧‧‧ Middle section

204‧‧‧ side section

300‧‧‧ card edge connector combination

3‧‧‧Lock card mechanism

31‧‧‧ Main body

311‧‧‧Bumps

32‧‧‧Locking Department

321‧‧‧ upper end

322‧‧‧ lower end

3221‧‧‧Flexible protrusion

3222‧‧‧Clamping wall

323‧‧‧ front end

324‧‧‧ rear end face

33‧‧‧Department

The first figure is a view of the card edge connector of the present invention mated with an electronic card; the second figure is a view of the card edge connector of the present invention separated from the electronic card; the third figure is an exploded view of the card edge connector of the present invention; Figure 7 is a perspective view of the card locking mechanism of the card edge connector of the present invention; the fifth drawing is a cross-sectional view of the card locking mechanism in the VV direction; and the sixth drawing is a sectional view of the locking mechanism in the VI-VI direction in the first figure. And the seventh figure is a partial enlarged view of the circle of the sixth figure.

The specific embodiments of the card edge connector of the present invention and combinations thereof will be described in detail below with reference to the drawings.

Referring to the first, second and third figures, the card edge connector assembly 300 of the present invention includes a card edge connector 100 and an electronic card 200 that is inserted into the card edge connector 100 and mated thereto. The card edge connector 100 includes an elongated insulating body 1 , a plurality of conductive terminals 2 held in the insulating body 1 , and a locking mechanism 3 disposed at an end of the insulating body for locking the electronic card 200 .

Referring to the third embodiment, the insulative housing 1 has a mating surface 11 , a central slot 12 for inserting the electronic card 200 recessed from the mating surface 11 , and two opposite ends of the insulative housing 1 . The tower portion 13 of the lock mechanism 3 is housed. The locking mechanism 3 has a hollow The main body portion 31 is provided with upper and lower opposite upper and lower ends. The upper end of the main body portion 31 is provided with a locking portion 32 for locking the electronic card 200, and the lower end of the main body portion 31 is provided for retreating The abutting portion 33 of the electronic card 200 has a columnar bump portion 311 protruding from opposite sides of the main body portion 31. Correspondingly, the tower portion 13 is provided with a receiving bump portion 311 for locking A receiving hole (not shown) that pivots the card mechanism 3. The electronic card 200 has a pair of terminals 201, and the butt end 201 is provided with a plurality of gold fingers 2011 that are coupled to the conductive terminals 2 along both side surfaces in the longitudinal direction. The electronic card 200 has opposite side ends 202 and at least one side end 202 is provided with an opening portion 2021 for locking the locking portion 32 of the card locking mechanism 3 to secure the electronic card in the central slot 12.

Referring to the third figure and in conjunction with the fourth figure, the electronic card 200 of the present invention is a fourth generation electronic card (ie, DDR4), and the metal finger 2011 set by the docking end 201 of the electronic card is more than the previous generation electronic cards. Since the gold finger 2011 is provided in a large amount, in order to insert and remove the force between the smaller electronic card 200 and the card edge connector 100, the intermediate portion 203 of the butting end 201 of the electronic card 200 is disposed higher than the two side segments 204. In the process of inserting the electronic card 200 into the central slot 12, first, the golden finger 2011 of the middle section abuts with the conductive terminal 2, and then the gold finger 2011 of the two sides, thereby effectively reducing the electronic card 200. The insertion force between the card edge connector and the card edge connector. However, a new problem has arisen. Since the latching portion 32 of the latching mechanism 3 and the opening portion 2021 of the electronic card 200 are generally interfering with each other, the frequent use of the latching portion 32 causes wear of the latching portion 32. , causing the locking portion 32 to not effectively press the electronic card 200. When the middle portion of the electronic card 200 is set high and the two side segments are set low, if the locking portion 32 cannot effectively press the electronic card 200, the The electronic card 200 may sway, thereby affecting the electrical connection between the electronic card 200 and the card edge connector 100. In addition, even if the docking end of the electronic card is the same (ie, the conventional electronic card, not shown), if the latching portion cannot be reliably fastened in the opening of the electronic card, the electronic card and the card edge connector are electrically connected. Unreliable connection, especially In the case of vibration.

Referring to the fourth embodiment and the fifth, sixth and seventh figures, the locking portion 32 of the locking mechanism 3 protrudes from the elastic protruding portion 3221, and the elastic protruding portion 3221 is a resilient arm. Of course, it can be other structures. The locking portion 32 has an upper end surface 321 , a lower end surface 322 that is opposite to the upper end surface and a lower end surface 322 of the electronic card 200 , and a front end surface 323 that abuts against the opening portion 2021 and a rear end surface 324 opposite to the front end surface 323 . The protruding portion 3221 protrudes from the lower end surface of the locking portion 32. Preferably, the elastic protruding portion 3221 is integrally formed from the lower end surface of the locking portion 32. Further, the elastic protruding portion 3221 extends from the front end surface 323 of the locking portion 32 toward the rear end surface 324, and the rear end of the elastic protruding portion is a free end. The opening portion 2021 of the electronic card 200 has a top surface 2022 and a bottom surface 2023 that face each other. The elastic protruding portion 3221 of the locking portion 32 abuts against the bottom surface 2023 of the opening portion 2021. Since the elastic protruding portion 3221 has elasticity, Therefore, it is possible to press down the electronic card 200 downward. Even when the elastic protruding portion 3221 wears, it can press the electronic card by applying an elastic force to the elastic arm, so that the electronic card 200 can be effectively stabilized in the card edge connector 100. It should be noted that, after the locking portion 32 is fastened in the opening portion 2021, there is a gap between the upper end surface 321 of the locking portion 32 and the top surface 2022 of the opening portion 2021. Otherwise, the elastic protruding portion 3221 cannot The electronic card 200 is effectively pressed down.

Referring to the fourth figure, the locking portion 32 further protrudes from the two sides of the lower end surface 322 thereof with a clamping wall 3222 for clamping and holding the electronic card 200 therebetween. Thereby, the electronic card 200 can be stably stabilized laterally. In the present invention, the elastic protruding portion 3221 is disposed between the two clamping walls 3222, and the height of the elastic protruding portion 3221 protruding from the lower end surface 322 of the locking portion 32 is lower than that of the clamping wall 3222. Thereby, the elastic protrusion can be effectively protected by the clamping wall 3222 3221, to avoid accidental breakage of the elastic protrusion 3221.

In the above, the above is only a preferred embodiment of the present invention, and those skilled in the art can still make various substitutions and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the present invention should be construed as being limited to the scope of the invention, and the equivalent equivalents and modifications of the present invention are intended to be included within the scope of the invention.

2022‧‧‧ top surface

2023‧‧‧ bottom

321‧‧‧ upper end

3221‧‧‧Flexible protrusion

Claims (7)

A card edge connector for inserting an electronic card, comprising: an elongated insulating body, the insulating body having an abutting surface and a central slot for inserting an electronic card from a recessed surface; the conductive terminal Retaining in the insulating body; and a locking mechanism having a locking portion for locking the electronic card, the locking mechanism being disposed at an end of the insulating body; wherein the locking portion has an upper portion An end surface, a lower end surface opposite to the upper end surface, and a front end surface and a rear end surface, wherein the latching portion protrudes from the front end surface toward the rear end surface and has an elastic protrusion that presses down the electronic card downwardly. The lower end surface is provided with a first recessed space which is recessed upwardly, and the elastic protruding portion is recessed downwardly from the lower end surface to form a second letting space, the first yielding space and the second yielding space The spaces collectively form a receiving space for receiving the elastic protruding portion when the elastic protruding portion is elastically deformed. The card edge connector of claim 1, wherein the two sides of the lower end surface of the locking portion respectively protrude downwardly with a clamping wall for clamping and fixing the electronic card therebetween, the elastic protrusion The portion is located between the two clamping walls. The card edge connector of claim 2, wherein the elastic protrusion protrudes from the lower end surface of the locking portion by a lower height than the clamping wall. The card edge connector of claim 1, wherein the locking mechanism and the insulative body are pivotally engaged, and the locking mechanism has a hollow body portion, and the main body portion has upper and lower opposite upper and lower ends, The locking portion is disposed at an upper end of the main body portion, and a lower end of the main body portion is provided with a retracting portion for retracting the electronic card. A card edge connector assembly comprising: a card edge connector, the card edge connector includes an elongated insulating body, a plurality of conductive terminals held in the insulating body, and a locking mechanism disposed at an end of the insulating body; the electronic card is inserted into the card edge connector The electronic card has opposite side ends and at least one side end is provided with an opening portion, wherein the locking mechanism is used for locking the electronic card, and the locking mechanism is provided with a locking portion locked in the opening portion The opening portion has upper and lower opposite top surfaces and a bottom surface, and the locking portion has an upper end surface, a lower end surface opposite to the upper end surface, and opposite front end surfaces and a rear end surface, wherein the locking portion is from the lower end surface The front end facing the rear end surface protrudes from a bottom surface of the opening portion for pressing down the elastic protrusion of the electronic card, and the lower end surface is provided with a first recessed space which is recessed upwardly, and the elastic protruding portion is self-owned The second end space is formed by recessing the end surface downwardly, and the first yield space and the second yield space together form a receiving space for receiving the elastic protruding portion when the elastic protruding portion is elastically deformed. The card edge connector assembly of claim 5, wherein the two sides of the lower end surface of the locking portion respectively protrude downwardly with a clamping wall for clamping and fixing the electronic card therebetween, and the elastic protruding portion is located at two Between the clamping walls. The card edge connector assembly of claim 5, wherein a gap exists between an upper end surface of the locking portion and a top surface of the opening portion when the locking portion is fastened in the opening portion.