TWI381592B - Card edge connector and latch device - Google Patents

Description

Card edge connector and lock fastener

The invention relates to a card edge connector, in particular to a card edge connector for rotary insertion of an electronic card.

A conventional card edge connector is disclosed in Chinese Utility Model Patent No. ZL02237032.3. The card edge connector has a longitudinal electronic card insertion slot, and a plurality of conductive terminals are respectively disposed on two sides of the insertion slot. The card edge connector is mounted on a motherboard, the electronic card is obliquely inserted into the insertion slot at an angle from the top to the bottom, and then rotated downward until the electronic card is substantially parallel to the motherboard and fixed by the locking component, the conductive terminal The elastic contact portion contacts the conductive sheets on both sides of the electronic card to complete electrical connection between the electronic card and the motherboard.

In the current diversified form of electronic devices, the card edge connectors of the above-mentioned forms are no longer satisfactory, due to the internal components of the electronic device or the user-friendly factors. Therefore, it is desirable to design a new card edge connector to suit different applications.

The problem to be solved by the present invention is to provide a card edge connector for inserting an electronic card from the bottom to the top.

In order to achieve the above object, the present invention can adopt the following technical solution: a card edge connector, which can be mounted on a surface of a circuit board having a notch, and is used for accommodating an electronic card, which comprises an insulating body and a conductive terminal, and the insulating body is provided. The insertion slot of the electronic card can be received, and the conductive terminal extends into the insertion slot, and the electronic card is obliquely inserted into the insertion slot from the other surface of the surface of the circuit board, and is rotated and positioned in the notch.

The card edge connector of the invention allows the user to insert the electronic card into the card edge connector from bottom to top, which is convenient to use and convenient for replacing the electronic card. In addition, the overall structure of the card edge connector of the present invention sinks into the circuit board, and further The overall structure of the card edge connector can be lowered to the height of the circuit board.

The present invention can also adopt the following technical solution: a card edge connector comprising an insulating body provided with a mounting surface and a longitudinal insertion slot, and first and second conductive terminals arranged on both sidewalls of the insertion slot, first, The second conductive terminal includes an elastic contact portion protruding into the insertion groove, and a contact surface facing the mounting surface is formed between the contact portions of the first and second conductive terminals.

The present invention can also adopt the following technical solution: a card edge connector comprising an insulative housing and upper and lower rows of conductive terminals, the insulative housing is provided with an insertion slot having an opening, and the upper and lower rows of conductive terminals respectively include protruding insertions The contact arm of the groove is provided with a contact point, and the contact point of the upper row of the conductive terminals is closer to the opening of the insertion slot than the contact point of the lower row of the conductive terminals.

The invention can also adopt the following technical solution: a locking component can be used for fitting the card edge connector, and fixing the electronic card inserted into the card edge connector, comprising: a supporting surface for receiving the electronic card; the mounting surface , for fixing the locking component at a certain distance from the card edge connector; the locking portion is capable of releasing and fixing the electronic card, and has a locking contact portion, and the locking contact portion is spaced apart from the supporting surface The distance is for accommodating the electronic card; wherein the supporting surface and the mounting surface are located on the same side of the locking member.

The invention can also adopt the following technical solution: a card edge connector is mounted in a circuit board having a notch, and is used for accommodating an electronic card, comprising: an insulative body; a plurality of conductive terminals; a locking member, which is used for electronic The card is fixed on the insulative housing, and comprises: a supporting surface for receiving an electronic card; and a locking contact portion spaced apart from the supporting surface to fix the electronic card; wherein at least the supporting surface or the locking contact portion is at least One is located in the gap of the board.

As shown in the first figure, the present invention is a sinker card edge connector 100. The card edge connector 100 is mounted in a notch of the circuit board 200 for plugging an electronic card 300, such as a memory module. To achieve electrical connection between the circuit board and the electronic card. The card edge connector of the present invention is sunk into the circuit board, thereby reducing the height of the card edge connector as a whole on the circuit board. As shown in the second figure, the card edge connector includes an elongated insulating body 1 , and one side (ie, the front end surface) of the insulating body is provided with an elongated insertion slot 11 having an opening, and the plurality of conductive terminals 2 and 3 are received in The inner wall of the upper and lower walls. The second figure shows only a part of the conductive terminals, and the upper and lower rows of the conductive terminals are staggered. The arrangement of the conductive terminals is a general method of a memory module connector such as a SO DIMM (Small Dual Inline Memory Module) connector. Narration. The circuit board 200 is provided with a terminal insertion hole 202 adjacent to the inner edge of the notch 201, which can be soldered to the soldering leg of the conductive terminal to electrically connect the conductive line on the circuit board; and is provided on the side edge adjacent to the notch 201. The hole 203, the metal grabbing member 12 provided on both sides of the card edge insulator insulating body 1 is inserted into the through hole 203 to fix the connector to the circuit board 200. The structure of the conductive terminals 2, 3 will be described in detail below.

As shown in the third figure, the upper row of conductive terminals 2 (ie, the first conductive terminals) includes a base portion 21 received in an insulative housing terminal receiving groove (not labeled), and an elastic contact portion extending forwardly from the front end of the base portion and extending slightly downward. 22 and from the back end of the base The soldering foot 23 extends vertically downward. A holding portion 24 extends downward from the base portion adjacent to the contact portion 22, and is fixed in the fixing hole 13 formed on the insulating body by the barb provided thereon. The contact portion 22 extends into the insertion slot 11 of the insulative housing. The conductive terminal receiving groove penetrates the top surface of the insulating body, and the conductive terminal 2 is formed by inserting the top surface of the insulating body downward (the second figure is clearly shown).

As shown in the fourth figure, the lower row of conductive terminals 3 includes a base portion 31 received in the terminal receiving groove 14 of the insulative housing, and an elastic contact portion 32 extending from the front end of the base portion into the insertion slot 11 obliquely upward and rearward from the base portion. The soldering leg 33 extends vertically downwards. A retaining portion 34 extends forward from the front end of the base and is fixed in the correspondingly formed fixing hole 15 on the insulating body by the barb provided thereon. The terminal receiving groove 14 extends through the rear end surface of the insulating body, and the conductive terminal 3 is formed by inserting the rear end surface of the insulating body.

As shown in the third and fourth figures, the card edge connector has a mounting surface that is mounted on the inner edge of the notch of the circuit board by the mounting surface. The free ends of the contact portions 22, 32 of the upper and lower rows of conductive terminals are convexly provided with contact points 221, 321 to the insertion slots 11. The upper row of contact points 221 is closer to the opening of the insertion slot 11 than the lower row of contact points 321 , away from the inner side wall 18 of the insertion slot 11 , so that the insertion slot 11 forms a downward insertion interface for the insertion of the electronic card. A, as indicated by the broken line, the interposer A is inclined downward toward the circuit board 200, that is, toward the mounting surface of the card edge connector, so that the electronic card can be rotatably mounted into the insertion slot 11 from the bottom to the top. The front end faces of the insulative bodies on both sides of the insertion slot 11 are at a certain distance from the front and rear, the front end face 16 of the upper side wall is forward, and the front end face 17 of the bottom wall is rearward.

As shown in FIG. 5, the electronic card 300 is oriented from the bottom surface 206 of the circuit board 200. Inserting the insertion slot 11 of the card edge connector at an oblique angle, the contact points of the upper and lower rows of the conductive terminals are in contact with the conductive sheets of the electronic card, and then rotating upward (in the direction of arrow C) to bring the electronic card close to the circuit board 200 until it and the circuit board Parallel and fixed by the locking member 6 of the circuit board (described below). The card edge connector is positively mounted in the notch 201 of the circuit board 200, and the electronic card 300 is inserted from the bottom surface of the card edge connector. In the application, the card edge connector is mounted in an electronic device, such as a notebook computer. The user can directly insert the memory module 300 from the bottom of the notebook computer, especially when the memory module needs to be replaced, the memory module can be directly replaced from the bottom of the notebook computer without disassembling the computer.

The sixth figure shows the locking member 6 used in conjunction with the card edge connector, wherein the card edge connector 100, the circuit board 200 and the electronic card 300 are mounted as described above, and the electronic card 300 is mounted from the lower surface 206 (ie, the bottom surface) of the circuit board. It is inserted into and secured to the circuit board 200 by the fastener 6. In combination with the seventh and eighth figures, the locking member 6 includes a downward supporting surface 62, a mounting surface 66 and a locking portion 61 disposed downwardly. The positioning post 63 protrudes downward from the supporting surface for positioning on the electronic card. The hole fits; the gripper portions 64, 65 project downward from the mounting surface 66. The locking member 6 is mounted downward from the upper surface (front surface) of the circuit board, and the clamping plate portions 64 and 65 are inserted into the corresponding through holes 208 and 209 of the circuit board and fixed, and the locking contact portion 611 at the front end of the locking portion 61 is It may be a face contact or a line contact) facing the support surface 62 and spaced apart to accommodate the electronic card. Wherein, the supporting surface 62 and the mounting surface 66 are located on the same side of the locking member, and the supporting surface 62 is slightly higher than the mounting surface 66, as shown in the eighth figure. In this embodiment, the latch contact portion 611 is located in the notch of the circuit board 200, and the support surface 62 is slightly higher than the notch of the circuit board 200, that is, the upper surface, allowing the electrons to be located in the gap of the circuit board, thereby reducing the entire connection. The height of the device; however, it is located at different positions depending on the height at which the card edge connector 100 sinks into the notch of the circuit board 200. The thickness of the fixing portion 302 at both ends of the electronic card is smaller than the thickness of the circuit board, so that one of the locking contact portion 611 or the supporting surface 62 is located in the notch, and correspondingly, the other one is located outside the notch, that is, another height is high. On the surface of the board.

Compared with the conventional top-panel card edge connector mounted on the circuit board, the sinking card edge connector of the present invention can effectively reduce the height of the card edge connector and the overall structure of the circuit board, thereby facilitating miniaturization of the electronic product. development trend.

In summary, this creation has indeed met the requirements of the invention patent, and applied for a patent in accordance with the law. However, the above-mentioned embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make equivalent modifications or variations in accordance with the spirit of the present invention. It should be covered by the following patent application.

100‧‧‧ card edge connector

32‧‧‧Contacts

1‧‧‧Insulating body

33‧‧‧ soldering feet

11‧‧‧ Socket slot

34‧‧‧ Holding Department

12‧‧‧Scratch board

200‧‧‧ boards

13, 15‧‧‧ fixing holes

201‧‧‧ gap

14‧‧‧ housing trough

202‧‧‧ Sockets

16, 17‧‧‧ front end

203, 208, 209‧‧‧ through holes

18‧‧‧ inner side wall

300‧‧‧electronic card

2, 3‧‧‧ conductive terminals

302‧‧‧Fixed Department

21‧‧‧ base

6‧‧‧Locks

22‧‧‧Contacts

61‧‧‧Locking Department

221, 231‧‧ ‧ touch points

611‧‧‧Lock contact

23‧‧‧ soldering feet

62‧‧‧Support surface

24‧‧‧ Holding Department

63‧‧‧Positioning column

31‧‧‧ base

64, 65‧‧‧Scratch board

66‧‧‧Installation surface

The first figure is a perspective view of a card edge connector and an electronic card mounted on a circuit board of the present invention.

The second figure is a perspective view of the card edge connector and the circuit board of the present invention.

The third figure is a schematic view of the row of conductive terminals on the card edge connector of the present invention.

The fourth figure is a schematic view of the lower row of conductive terminals of the card edge connector of the present invention.

The fifth figure is a schematic diagram in which the third picture is plugged with an electronic card.

The sixth figure is a three-dimensional combination diagram of the card edge connector latch of the present invention with an electronic card.

The seventh figure is a three-dimensional combination diagram of the card edge connector and the locking component of the present invention mounted on the circuit board.

The eighth figure is an exploded perspective view of the card edge connector and the locking member of the present invention.

100‧‧‧ card edge connector

200‧‧‧ boards

11‧‧‧ Socket slot

206‧‧‧ bottom

2‧‧‧Upper row of conductive terminals

300‧‧‧electronic card

221, 321‧‧ ‧ touch points

Claims (27)

The card edge connector is mounted on the first surface of the circuit board having the notch and is used for receiving the electronic card. The card edge connector comprises: an insulating body, and is provided with a socket for receiving the electronic card; and the conductive terminal And extending into the insertion slot; wherein the electronic card is obliquely inserted into the insertion slot from the second surface of the first surface of the circuit board, and is rotated and positioned in the notch. The card edge connector of claim 1, wherein the circuit board is mounted with a locking component at the other end of the opposite card edge connector, the locking component comprising a mounting portion and a locking portion, wherein the locking portion is located above On the second surface side of the circuit board, the mounting portion is fixed to the first surface of the circuit board. The card edge connector of claim 2, wherein the mounting portion is provided with a catching member inserted from the first surface of the circuit board. The card edge connector of claim 2, wherein the locking member further comprises a supporting surface opposite to the locking portion, the mounting portion having a mounting surface that fits the first surface of the circuit board, the mounting surface and the mounting surface The support surface is located on the same side of the mounting portion. A card edge connector includes: an insulative housing having a mounting surface mountable on the circuit board and a longitudinal insertion slot for receiving an electronic card; the first conductive terminal and the second conductive terminal are respectively arranged The first and second conductive terminals respectively comprise elastic contact portions protruding into the insertion slots, and the contact portions of the first and second conductive terminals form a socket facing the mounting surface. . The card edge connector according to claim 5, wherein the first and the first The two conductive terminals are staggered, the second conductive terminal is adjacent to the mounting surface, the first conductive terminal is adjacent to the top surface of the opposite mounting surface, and the first conductive terminal is exposed on the top surface of the insulating body. The card edge connector of claim 6, wherein each of the first and second conductive terminals comprises a base portion and a soldering leg, the contact portion extends from the base portion into the insertion slot, and the soldering leg extends from the base portion toward the mounting surface, The base of the first conductive terminal is exposed on the top surface of the insulating body. The card edge connector of claim 7, wherein the first conductive terminal further comprises a retaining portion extending perpendicularly from the base toward the mounting surface, the retaining portion being fixed to the insulative housing. The card edge connector according to any one of the preceding claims, wherein the card edge connector is a sinker type connector, and the longitudinal ends of the insulating body are respectively provided with a grabbing plate member. . A card edge connector includes: an insulative housing, an insertion slot having an opening, and upper and lower sidewalls on opposite sides of the insertion slot, wherein the upper sidewall and the lower sidewall are respectively provided with a rear end surface and an upper sidewall The rear end protrudes rearwardly and protrudes from the rear end surface of the lower side wall; the upper row of conductive terminals and the lower row of conductive terminals are respectively located on the upper side wall and the lower side wall of the two sides of the insertion slot, and includes contact arms protruding into the insertion groove, and contacting The arm is provided with a contact point, wherein a contact point of the upper row of the conductive terminals is closer to the opening of the insertion slot than the lower row of the conductive terminals; wherein the upper end surface is adjacent to the opening, and the end surface protrudes from the front end surface of the lower side wall so as to be received in the insertion hole The electronic card in the slot rotates from the side of the lower side wall to the side of the upper side wall. The card edge connector of claim 10, wherein the lower row of conductive terminals includes a base portion, is bent downward from the base portion, and then extends obliquely upward into the plug. The contact arm of the slot and a retaining arm extending forward from the front end of the base. The card edge connector of claim 11, wherein the upper row of conductive terminals penetrates the top surface of the upper sidewall of the insulative body. A locking member for engaging a card edge connector for fixing an electronic card inserted into a card edge connector, the locking member comprising: a support surface for receiving an electronic card; and a mounting surface for locking The fastener is fixed at a distance from the card edge connector; the latching portion is capable of releasing and fixing the electronic card, and has a latching contact portion spaced apart from the supporting surface by a distance to accommodate the electronic card; Wherein, the support surface and the mounting surface are located on the same side of the locking component. The locking member according to claim 13 , wherein the mounting surface extends in the same direction as the locking portion to provide a catching portion for fixing the locking member to the circuit board. The locking member according to claim 13 , wherein the supporting surface extends along the locking portion to provide a positioning post. The locking member of claim 13, wherein the supporting surface is away from the locking contact portion than the mounting surface. A card edge connector, the card edge connector is mounted in a notched circuit board and is used for receiving an electronic card, wherein the card edge connector comprises: an insulative body, which is provided with an insertion slot having an opening; The terminal is located in the insulating body; the locking component is disposed separately from the insulating body and is used for fixing the electronic card, the locking component comprises: a supporting surface for receiving the electronic card; and the locking contact portion is spaced apart from the supporting surface by a certain distance Fixing an electronic card; wherein at least one of the support surface or the latch contact portion is located on the circuit board Within the gap. The card edge connector of claim 17, wherein the latch contact portion is located in the notch, and the support surface is higher than the gap of the circuit board. The card edge connector of claim 18, wherein the latching member is mounted downwardly from the upper surface of the circuit board to the circuit board. The card edge connector of claim 17, wherein the locking member comprises a mounting surface which is located on the same side of the locking member as the supporting surface. The card edge connector of claim 20, wherein the mounting surface and the supporting surface are integrally formed by a plastic body. The card edge connector of claim 21, wherein the latch contact portion is formed by bending a metal, and the metal system is fixed to the plastic body. The card edge connector of claim 21, wherein the conductive terminal comprises an upper row of conductive terminals and a lower row of conductive terminals, wherein the upper and lower rows of terminals are respectively located on upper side walls and lower side walls of the two sides of the insertion slot. And including a contact arm protruding into the insertion slot, the contact arm is provided with a contact point. The card edge connector of claim 23, wherein the contact point of the upper row of conductive terminals is closer to the opening of the insertion slot than the lower row of the conductive terminals, and the upper end surface of the upper sidewall is adjacent to the opening and the end surface protrudes from the lower sidewall Front end face. The card edge connector of claim 24, wherein the lower row of conductive terminals comprises a base portion, the contact arm bent downward from the base portion and then extending obliquely upward into the insertion slot, and the retaining arm extending forwardly from the front end of the base portion . The card edge connector of claim 25, wherein the upper row of conductive terminals penetrates the top surface of the upper sidewall of the insulative housing. The card edge connector according to any one of claims 17 to 26, wherein the card edge connector is a sinker type connector, and the longitudinal ends of the insulating body are respectively provided with a grabbing plate member. .