TWI420751B - Card edge connector - Google Patents

Description

Card edge connector

The present invention relates to a card edge connector, and more particularly to a card edge connector having a card ejecting device.

A related art is disclosed in a card edge connector for a plug-in memory module disclosed in U.S. Patent No. 7,264,491, the disclosure of which is incorporated herein by reference. a plurality of conductive terminals on the insulative housing and a card ejecting device; the insulative housing is provided with a central slot extending in the longitudinal direction and used for inserting the memory module, wherein the card ejecting device is located on both arms of the insulative housing When the memory module is inserted or withdrawn, the card ejecting device rotates along the longitudinal direction of the insulative housing, thereby greatly increasing the space occupied by the card edge connector on the circuit board. The card board needs to preset the card withdrawal space for the card edge connector's card ejecting device, which is not conducive to the development of miniaturization of electronic products, but can be improved.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a card edge connector that is provided with a card ejecting device that improves the space occupied by the circuit board.

In order to achieve the above object, the present invention adopts the following technical solution: a card edge connector for plugging in a memory module, comprising an insulative housing, a pair of extension arms extending forward from the insulative housing, and a card retracting on the extension arm Device, the insulating body is provided with a forward opening a slot, the card ejecting device includes an operating portion that rotates in a vertical direction perpendicular to the insulative housing, and a ejecting member that is located in the extending arm, the ejecting member is provided with a top portion that moves into the slot, the top portion When the operating portion rotates, it moves along the extending direction of the extending arm to exit the memory module.

Compared with the prior art, the rotation direction of the card ejecting device of the present invention is not in the horizontal direction where the circuit board is located, and the rotation space of the card ejecting device on the circuit board is not required, thereby achieving the purpose of not occupying the space of the circuit board.

In order to solve the above problems, the present invention adopts the following technical solution: a card edge connector, comprising: an insulative housing, which is provided with a slot that is open to the front, the slot is used for plugging a memory module; An arm having a guiding groove extending rearward from the front end thereof and communicating with the slot; the card ejecting device comprising: a card ejecting member having an abutting top portion adjacent to the slot at one end and a top portion at the other end; and an operating member It has an operation portion located at the rear of the top portion and a rotation portion of the rotatable protrusion portion; wherein, when the operation portion is rotated, the protrusion portion moves forward to press against the top portion, and the ejecting member moves forward, and the top portion protrudes into the slot.

Compared with the prior art, the rotation direction of the card ejecting device of the present invention is not in the horizontal direction where the circuit board is located, and the rotation space of the card ejecting device on the circuit board is not required, thereby achieving the purpose of not occupying the space of the circuit board.

100‧‧‧first card edge connector

200‧‧‧Second card edge connector

1, 2‧‧‧Insulated body

11, 21‧‧‧ base

13‧‧‧Extension arm

131‧‧‧ guiding slot

132‧‧‧ horizontal trough

133‧‧‧ vertical trough

135‧‧‧ slotting

14‧‧‧ 容 部

145‧‧‧容容

146‧‧‧ Reception trough

15, 24‧‧‧ slots

16, 25‧‧ ‧ keychain

22‧‧‧ Terminal

26‧‧‧Positioning column

3‧‧‧Returning device

31‧‧‧Returning card

310‧‧‧ Main body

312, 313‧‧‧ horizontal sliding parts

311‧‧‧ is top

314‧‧‧ arrive at the top

315, 316‧‧‧ vertical sliding section

32‧‧‧Operating parts

320‧‧‧Operation Department

321‧‧‧Cam Department

3210‧‧‧ front face

3211‧‧‧Protruding

322‧‧‧ round hole

33‧‧‧ shaft

4‧‧‧ memory module

6‧‧‧ coil spring

23‧‧‧Bucking arm

111‧‧‧slit

1 is a perspective view of a card edge connector of the present invention mounted on a circuit board; FIG. 2 is an exploded perspective view of the card edge connector of the present invention; and a third perspective view of the card edge connector of the present invention; 4 is a cross-sectional view of the card edge connector of the present invention taken along line IV-IV; FIG. 5 is a partial cross-sectional view showing another state of the card edge connector of the present invention; and FIG. 6 is a card edge connector of the present invention. A cross-sectional view taken along line VI-VI; a seventh side view is a partial side view of another state of the card edge connector of the present invention; and an eighth view is a perspective view of a card ejecting member of another embodiment of the card edge connector of the present invention.

The creation is described in detail below in conjunction with the drawings.

Referring to the first and second figures, the card edge connector 100 (ie, the first card edge connector) of the present invention includes an insulative housing 1 and a card ejecting device 3. The card edge connector 100 is mounted on the lower surface of the circuit board 5 and is used to connect a memory module 4 to electrically connect the circuit board 5. In this embodiment, the second card edge connector 200 is also disposed on the surface of the circuit board. The second card edge connector 200 can also be used for tilting the memory module 4, and the first card edge connector 100 is for the memory module 4 to be horizontally inserted. Of course, the circuit board 5 may be provided with only the first card edge connector 100 or the first card edge connector 100 may be disposed on the upper surface of the circuit board 5.

Referring to the second figure, the second card edge connector 200 includes an insulative housing 2 and a plurality of terminals 22 (only a part of which is shown) housed in the insulative housing 2. The insulative housing 2 includes an elongated base portion 21 and a pair of mutually parallel latching arms 23 extending from opposite ends of the base portion 21 toward one side of the base portion 21. One side of the base portion 21 is provided with an elongated slot 24, and a central portion of the slot 24 is provided with a key 25 for preventing the memory module from being mis-inserted. The bottom surface of the insulative housing 2 is provided with a positioning post 26 for facilitating positioning of the second card edge connector 200 to the circuit board 5 (see the seventh figure). The two latching arms 23 and the base portion 21 are enclosed to accommodate the memory phantom The containment space of the group.

Referring to the second figure, the insulative housing 1 of the first card edge connector 100 includes an elongated base portion 11 and a pair of extension arms 13 extending from opposite ends of the base portion 11 toward one side of the base portion 11. One side of the base 11 is provided with an elongated slot 15, and a middle portion of the slot 15 is provided with a key 16 for preventing the memory module from being mistakenly inserted. The two extension arms 13 and the base 11 together define a receiving space for receiving the memory module. The front end of the extension arm 13 is integrally formed with a large receiving portion 14. The accommodating portion 14 is outwardly expanded from the extending arm 13 in the longitudinal direction, and the extending arm 13 is protruded in the height direction perpendicular to the circuit board 5 to form a member having a large size. The accommodating portion 14 is provided with an accommodating cavity 145 which is open upwardly and forwardly. A circular receiving groove 146 extends through the accommodating portion 14 and the accommodating cavity 145 in the longitudinal direction. The receiving groove 146 forms a cross with the accommodating cavity 145. The middle portion of the receiving groove 146 is in a staggered manner and communicates with the accommodating cavity 145. The extending arm 13 defines a horizontal guiding slot 131 extending rearward from the receiving portion 14 of the front end and communicating with the slot 15 for guiding and guiding the memory module 4 .

The card ejecting device 3 further includes a ejecting member 31, an operating member 32, and a rotating shaft 33. The front end surface of the accommodating portion 14 is provided with a vertical groove 133 which penetrates the accommodating portion 14 rearward and corresponds to the outer wall surface of the extension arm 13. The vertical slots 133 extend horizontally inwardly to form a horizontal slot 132.

The ejecting member 31 is an elongated metal piece whose longitudinal body portion 310 is inserted into the vertical groove 133 from the front end surface of the extending arm 13 and abuts against the outer wall surface of the extending arm 13. The upper edge of the main body portion 310 is respectively provided with a top portion 311 and horizontal sliding portions 312 and 313 which are vertically bent inward at the front end, the middle portion and the rear end portion, and the sliding portion 313 is bent downward to form a top portion 314. The lower edge of the main body portion 310 is provided with L-shaped vertical sliding portions 315, 316 which are firstly bent inwardly and then vertically bent at the front end and the rear end. Swept by top 311 and horizontal The portions 312, 313 are respectively located in the horizontal grooves 132, and the vertical sliding portions 315, 316 are located in the slots 135, so that the ejecting member 31 is mounted on the extension arm 13.

The operating member 32 has an L shape and includes an operating portion 320 and a cam portion 321 connected to one end of the operating portion 320. A circular hole 322 is formed in the middle of the cam portion 321 . After the ejecting member 31 is inserted into the extending arm 13, the operating member 32 is assembled into the receiving cavity 145, and the rotating shaft 33 is inserted into the receiving groove 146 and the receiving portion 14 from the side wall of the extending arm 13, so that the operating member 32 can be accommodated in the receiving cavity. Rotating inside 145 forms a card ejection device 3 as shown in the first and third figures. Referring to the fourth figure, the abutting top 314 is located within the slit 111 which communicates with the slot 15. When the memory module 4 has not been inserted or has been inserted, as shown in the seventh figure, the front end face 3210 of the cam portion 321 is pressed against the top portion 311, and the operation portion 320 is horizontally positioned on the accommodating portion 14.

Referring to the fourth to seventh figures, when the card is to be retracted, the operation portion 320 is moved from the position shown in the seventh figure to the position shown in the sixth figure, that is, the operation portion 320 is oriented by the plane of the electrical connector. Rotating in a direction perpendicular to the plane in which the electrical connector is located, correspondingly, the protruding portion 3211 of the cam portion 321 is turned outward, and the protruding portion 3211 thereof is forwardly moved to the position of the top portion 311 of the push-back card member 31 from the position shown in the seventh figure. Up to the position shown in the sixth figure, the abutting top 314 of the ejecting member 31 is withdrawn from the slit 111, and a force toward the opening direction is applied to the front end of the memory module 4, thereby the memory module 4 is removed from the first The card edge connector 100 is withdrawn (see the fourth and fifth figures), thus completing the card withdrawal action. The reinsertion of the memory module 4 can move the abutting top 314 rearward. The front end of the operating portion 320 protrudes from the front end of the extension arm 13 to facilitate user's operation. After the memory module 4 is pulled out, the ejecting member 31 is located in front of the base portion 11, and after being inserted again, the memory module 4 can be pressed back and retracted. It is also possible to provide a structure as shown in the eighth figure, the coil spring 6 is fixed at one end to the insulating body, and the other end is fixed to the ejecting member. 31, after the memory module 4 is withdrawn, the spring 6 returns the ejecting member 31 to the initial position; if the sliding portion and the cam portion located behind the cam portion are sized properly, the cam portion can also be pressed against the rear portion. The sliding portion returns the ejecting member to the initial position. The operating member 32 can be manually moved to the horizontal position after the memory module 4 is withdrawn, or a torsion spring can be disposed at the rotating shaft 33 to automatically return the operating member to the initial position.

The card edge connector of the invention mainly sets the direction of the card ejecting device to be perpendicular to the direction of the circuit board, so that the space of the circuit board is not occupied, so that the space of the circuit board is fully utilized and also reduced. The overall size of the electrical connector.

In summary, this creation has met the requirements of the invention patent, and applied for a patent in accordance with the law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the foregoing embodiments, and any equivalent modification or change made by a person familiar with the skill of the present invention in accordance with the spirit of the present invention is It should be covered by the following patent application.

311‧‧‧ arrive at the top

321‧‧‧Cam Department

3211‧‧‧Protruding

33‧‧‧ shaft

320‧‧‧Operation Department

Claims (13)

A card edge connector for plugging in a memory module, comprising: an insulative body, the insulative body is provided with a slot for opening forward; a pair of extension arms extending forward from the insulative body; The extension arm includes an operation portion rotatable in a vertical direction perpendicular to the insulation body, and a card ejecting member disposed at the extension arm and separately from the operation portion; wherein the ejecting member is provided with a moving protrusion protruding into the slot The top of the abutting portion moves in the extending direction of the extending arm when the operating portion rotates to exit the memory module. The card edge connector of claim 1, wherein the card ejecting device moves in the direction of the extending arm toward the slot when rotating in the direction of the vertical insulative housing. The card edge connector of claim 2, wherein the card ejecting device comprises a cam portion at one end of the operating portion and in a perpendicular relationship with the operating portion, and the ejecting member is provided with a top portion in front of the cam portion, in operation When the portion is rotated, the cam portion is pressed by the top in the extending direction of the extending arm. The card edge connector of claim 3, wherein the card ejecting member comprises a main body portion of the extension arm and a horizontal sliding portion that slidably fixes the main body portion to the extension arm, the top portion being located at a front end of the extension arm, The abutting top is formed by bending a horizontal sliding portion near the rear end of the extending arm. The card edge connector of claim 4, wherein the front end of the cam portion and the extension arm are provided with corresponding circular holes, and a rotating shaft passes through the circular hole to position the operating member on the extension arm. The card edge connector of claim 5, wherein the top and the horizontal sliding portion are located at an upper edge of the main body portion, and the lower edge of the main body portion is also vertically bent with a vertical sliding portion, and the extending arm is provided with The vertical groove whose front end extends rearward and the horizontal groove perpendicular to the vertical groove are respectively received in the horizontal groove by the top and the horizontal sliding portion, and the vertical sliding portion is received in the vertical groove. The card edge connector of claim 6, wherein the insulative housing is provided with a slit, the slit is located at a rear end of the insulative housing and communicates with the slot, and the abutting top can be received in the slot. The card edge connector of claim 7, wherein the front end of the extension arm is provided with a recessed receiving portion in which the cam portion is accommodated. The card edge connector of claim 8, wherein the front end of the extension arm is enlarged and has a size larger than a rear end of the extension arm for arranging the operating member. The card edge connector of claim 9, wherein the front end of the operating portion protrudes from the front end of the extension arm. A card edge connector comprising: an insulative housing having a forwardly opening slot for receiving a memory module; a pair of extension arms extending rearwardly from a front end thereof a guiding slot for connecting the slot; the card ejecting device comprises: a card ejecting member having an abutting top portion adjacent to the slot at one end and a top portion at the other end; and an operating member having a protruding portion at the rear of the top portion and being movable An operation portion in which the protrusion rotates; wherein, when the operation portion rotates, the protrusion moves forward to press against the top portion, and the ejecting member moves forward, and the top portion protrudes into the slot. The card edge connector of claim 11, wherein the operating portion rotates in a plane perpendicular to the insulating body, and the operating portion protrudes forwardly against the top when rotating in a direction perpendicular to the insulating body groove. The card edge connector of claim 12, wherein the ejecting member is disposed on the extending arm and extending along the extending arm, and the operating member is disposed at the front end of the extending arm.