TW201806258A - Card edge connector - Google Patents

Abstract

A card edge connector comprises an elongated insulating body, a plurality of terminals housed in the insulating body, and a metal shell for shielding the insulating body. The insulating body is provided with a mounting surface and an insertion surface opposite to the mounting surface. Said insulating body is recessed from said insertion surface with a longitudinal central slot and a plurality of terminal slots located at both sides of said central slot. Said terminals are received in the terminal slots and extend into the central slot. The metal shell includes a shielding part covering the terminal slots at least partly. And a protrusion is provided between the insulating body and the shielding part so as to form a gap between the shielding part and the insertion surface, which can avoid the terminals and the metal shell from short circuit.

Description

Card edge connector

The present invention relates to a card edge connector, and more particularly to a card edge connector with a metal shell.

The Republic of China Patent No. M294139 discloses a card edge connector for connecting a circuit board. The card edge connector includes a vertically-insulating body with a central slot, a plurality of conductive terminals, and a metal shell having a shielding effect, wherein the metal shell covers the insertion surface of the insulating body and On both sides. However, the metal shell of the card edge connector covers the insertion surface of the insulating body, so that the metal shell is easy to overlap with the terminals in the insulation body to cause a short circuit; at the same time, the structure of the card edge connector is relatively slender At this time, the metal case mounted on the insulating body is liable to warp and deform.

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 with a metal shell, which can effectively improve the strength and stability of the card edge connector.

In order to achieve the purpose, the card edge connector of this creation includes a longitudinally insulated body, a plurality of conductive terminals housed in the insulated body, and a metal shell covering the insulated body; the insulated body is provided with a mounting surface and a connection with the The inserting surface opposite to the mounting surface, the insulating body is recessed with a longitudinal central slot from the inserting surface, and the insulating body is recessed with a plurality of terminal slots located on both sides of the central slot from the inserting surface. The conductive terminal includes a holding portion fixed to the insulating body, and an elastic contact portion extending from one end of the holding portion, the contact portion correspondingly received in the terminal slot and protruding into the central slot, the The metal casing includes a covering portion that at least partially covers the terminal slot, and a protrusion is provided between the insulating body and the covering portion to form a gap between the covering portion and the insertion surface.

Compared with the prior art, the card edge connector of the present invention has the following beneficial effects: The cover portion of the metal shell is hung on the insertion surface of the insulating body, which can prevent dust and make the card edge connector more beautiful overall. A protrusion is provided between the insulating body and the covering portion so that a gap is formed between the covering portion and the insertion surface, so that the contact portion of the conductive terminal does not contact the metal case when pressed by the electronic card. Contact with the cover.

The first picture is a perspective view of the original card edge connector;

The second figure is an exploded view of the card edge connector shown in the first figure;

The third figure is a partial enlarged view of the card edge connector shown in the second figure;

The fourth figure is another angle exploded view of the card edge connector shown in the second figure;

The fifth figure is a partial enlarged view of the card edge connector shown in the fourth figure;

The sixth figure is a sectional view of the card edge connector shown in the first figure along the line VI-Ⅵ;

The seventh figure is a cross-sectional view of the card edge connector along the line VI-VI shown in the first figure, in which the electronic card is inserted into the card edge connector; and

The eighth figure is a sectional view of the card edge connector shown in the first figure along line Ⅷ-Ⅷ.

The present invention will be described in detail below with reference to the preferred embodiments.

Please refer to the first diagram and the second diagram. The creative card edge connector 100 is used for inserting the electronic card 6. The card edge connector 100 includes an insulating body 1 extending in a longitudinal direction, a plurality of conductive terminals housed in the insulating body 1, a metal shell 3 covering and reinforcing the insulating body 1, and an insulating body 1 provided on the insulating body 1. A locking mechanism 4 for locking the electronic card 6 and a locking plate member 5 disposed in the insulating body 1 so that the card edge connector 100 is reliably mounted to a circuit board (not shown).

The insulating body 1 includes two side walls 11 extending along a longitudinal direction thereof, and two end walls 12 respectively connected to two ends of the two side walls 11. The insulating body 1 has an insertion surface 101 disposed horizontally and a mounting surface 102 disposed opposite the insertion surface 101. In the vertical direction, a seat bottom 103 is formed at the bottom of the insulating body 1 to stably place the card edge connector 100 on the circuit board (not shown). The bottom surface of the side wall 11 is higher than the mounting surface 102 of the insulating body 1. The insertion surface 101 of the insulating body 1 includes a top surface of the sidewall 11. The insulating body 1 is provided with a central slot 13 recessed downward from the insertion surface 101 to receive the plug-in portion 61 of the electronic card 6. The insulating body 1 is provided with a terminal slot recessed downward from the insertion surface 101 110 is used to receive the conductive terminal 2. Taking the direction in which the electronic card 6 is plugged in as a downward direction, each side wall 11 is recessed from the top surface thereof with a plurality of terminal slots 110 (not shown) arranged along the longitudinal direction and communicating with the central slot 13. All icons). The central slot 13 is provided with a key buckle 14 connected to the two side walls 11. The key buckle 14 holds the lock plate member 5 therein. The key button 14 is used to prevent the electronic card 6 from being inserted by mistake. The end wall 12 is provided with a tower-shaped portion 16 pivotally connected to the locking mechanism 4, and the tower-shaped portion 16 is provided with a mounting groove 160 for receiving the locking mechanism 4.

The conductive terminals 2 are correspondingly received in the terminal grooves 110 of the side wall 11. Each conductive terminal 2 is provided with a holding portion 21 fixed in the insulating body 1, an elastic contact portion 22 protruding from one end of the holding portion 21 into the central slot 13, and a welding portion extending from the other end of the holding portion 21 out of the insulating body 1. twenty three. The contact portion 22 extends upward along the terminal slot 110 without exceeding the insertion surface 101 of the insulating body 1, and a free end 220 thereof faces the central slot 13 and overlaps an insulating block in the terminal slot 110. on.

Please refer to the second, fourth, and fifth figures. The metal casing 3 includes two metal shells respectively attached to the outer sides of the two side walls 11, and each metal shell is provided with a covering portion 34 for Cover the insertion surface 101 of the insulating body 1. Each metal casing is further provided with a longitudinal body portion 30, an upper retaining portion 31 bent and extended from a top edge of the main body portion 30, a lower retaining portion 32 bent and extended from a bottom edge of the main body portion 30, and an autonomous body. Two side clasping portions 33 that are bent and extended at both ends of the body portion 30, the upper clasping portion 31 and the lower clasping portion 32 are oppositely disposed in a vertical direction perpendicular to the lengthwise direction, and the two The side holding portions 33 are oppositely provided in the longitudinal direction. The main body portion 30 of the metal casing is attached to the outside of the side wall 11 and extends toward the insertion surface 101 of the insulating body 1 to form the covering portion 34. The metal casing is used to insert the insertion surface 101 of the insulating body 1. In order to shield, the terminal slot 110 on the inserting surface 101 is shielded, so as to improve the overall aesthetics of the card edge connector 100 and also play the role of dust prevention. In this embodiment, the covering portion 34 partially shields the terminal slot 110. Of course, in other embodiments, the terminal slot 110 may be completely covered. The upper surface of the upper holding portion 31 is flush with the upper surface of the covering portion 34.

Referring to the third, sixth and seventh figures, the card edge connector 100 is provided with a protrusion 15 between the covering portion 34 and the insertion surface 101 of the insulating body 1 so that the covering portion 34 and A gap is formed between the insertion surfaces 101. The protrusion 15 abuts against the covering portion 34 of the metal casing 3 upward to increase the vertical distance between the covering portion 34 and the insertion surface 101 of the insulating body 1. In this embodiment, the protrusions 15 are integrally formed on the insertion surface 101 of the insulating body 1, the protrusions 15 are adjacent to the terminal grooves 110 and extend along the arrangement direction of the plurality of terminal grooves 110, In other embodiments, the protrusion 15 may be integrally formed with the metal case, or may be assembled with the metal case or the insulating body 1. Preferably, in a transverse direction perpendicular to the longitudinal direction, with the position of the central slot 13 as an inside, the protrusion 15 is located outside the terminal slot 110. In this embodiment, since the protrusions 15 are formed to protrude upward from the top surface of the side wall 11 and are provided only at the longitudinal ends of each side wall 11, the protrusions 15 are intermittently provided, and only part of the terminal grooves 110 are provided beside There are the protrusions 15. Of course, in other embodiments, the protrusion 15 may be continuously disposed on the top surface of each side wall 11, that is, the protrusion 15 is provided beside each terminal slot 110. The arrangement of the protrusion 15 can increase the height difference between the cover 34 of the metal housing 3 and the free end 220 of the conductive terminal 2 so as to prevent the conductive terminal 2 from being squeezed upward by the electronic card 6 for insulation. A problem arises in that the insertion surface 101 of the main body 1 overlaps the cover portion 34.

Please refer to the second, fourth, and fifth figures. The side wall 11 of the insulating body 1 is provided with a receiving groove 112 recessed from the insertion surface 101 adjacent to the key 14, and the side wall 11 is adjacent to The bottom surface area of the key button 12 is provided with a step portion 113 slightly higher than the mounting surface 102 of the insulating body 1. The upper holding portion 31 of the metal casing is held in the receiving groove 112, and the lower holding portion 32 is oppositely buckled on the step portion 113 of the side wall 11. The end wall 12 of the insulating body 1 is provided with a recess 120 recessed inward from an end surface in a longitudinal direction thereof, and the recess 120 is located below the mounting groove 160 of the tower portion 16 and is connected to the mounting groove. 160 are connected. The two side-holding portions 33 of the two metal shells are held in the groove 120, and the width of the groove 120 is slightly larger than the sum of the thicknesses of the two side-holding portions 33, thereby facilitating the two metals. The buckles of the side buckling portions 33 of the shells located at the same end wall 12. That is, the upper retaining portion 31 and the lower retaining portion 32 are respectively retained on the insertion surface 101 and the installation surface 102 of the side wall 11, and the two side retaining portions 33 are respectively retained on the insulation. On the end surface of the end wall 12 of the body 1.

Please refer to FIG. 6 to FIG. 8, the central slot 13 is provided with two steps 131 at two ends in the longitudinal direction, and a lower groove bottom 132 is formed between the two steps 131. .

Please refer to FIG. 7. In this embodiment, the vertical thickness of the covering portion 34 of the metal casing 3 is 0.20 mm, and the vertical height of the protrusion 15 is 0.20 mm. Therefore, compared to the existing card edge connector products without the above-mentioned covering portion 34 and the protrusion 15, the vertical height of the card edge connector 100 in this embodiment is increased by 0.40 mm correspondingly, and the height from the groove bottom 132 to the card edge connector 100 is increased. The vertical height of the upper surface is increased by 0.4mm. In order to avoid the risk that the base portion 60 of the electronic card 6 interferes with the metal shell 3 and the plug portion 61 cannot be fully inserted, the inventor of this creation breaks the industry definition (SO-016_Rev.B) "DDR4 connector slot bottom to seat The maximum distance of the bottom is 2.40mm ", the distance L2 from the groove bottom 132 to the seat bottom 103 of the card edge connector 100 in this embodiment is set to 2.65mm, so as to achieve the premise that the external dimensions of the insulating body 1 are not changed. At the same time, ensure that the distance L1 from the bottom of the groove 132 to the upper surface of the covering portion 34 of the metal casing 3 does not exceed 4.00 mm. In this embodiment, L1 is set to 3.95 mm (the minimum height of the insertion portion 61 of the electronic card 6 defined by the industry is 4.00 mm). This method does not need to change the shape and structure of the conductive terminals 2 and the terminal grooves 110 in the existing products, and only changes the vertical height of the groove bottom 132 of the central slot 13, which greatly simplifies the development of new products. Therefore, the vertical distance L1 from the slot bottom 132 of the card edge connector 100 to the upper surface of the metal shell 3 is not greater than 4.00 mm, and the slot bottom 132 to the seat bottom 103 of the insulating body 1 The vertical distance L2 is greater than 2.40mm.

In this creative card edge connector 100, by adding a metal shell 3 on the outside of the insulating body 1, the card edge connector 100 still has a certain strength under the premise of having an elongated insulating body 1. The metal shell 3 effectively improves the card edge The strength and stability of the connector 100. The upper retaining portion 31, the lower retaining portion 32 and the side retaining portion 33 of the metal casing 3 are respectively locked around the side wall 11, so that no warpage occurs when the metal case is stably installed on the insulating body 1. Possible. The upper buckling portion 31 and the lower buckling portion 32 of the metal shell are respectively buckled in the area of the side wall 11 adjacent to the key buckle 14, so that the buckling portion can be buckled in the insulating body 1 without blocking the terminal slot 110. The layout of the effect.

In summary, this creation complies with the elements of an invention patent, and a patent application is filed in accordance with the law. However, the above is only a preferred embodiment of this creation, and the scope of this creation is not limited to the above embodiments. For example, those who are familiar with the skills of this case make equivalent modifications or changes based on the spirit of this creation. It should be covered by the following patent applications.

100‧‧‧Card Edge Connector

101‧‧‧ Insertion surface

102‧‧‧Mounting surface

103‧‧‧Bottom

1‧‧‧Insulated body

11‧‧‧ sidewall

110‧‧‧Terminal Slot

112‧‧‧Container

113‧‧‧step

12‧‧‧ end wall

120‧‧‧ groove

13‧‧‧ central slot

131‧‧‧ steps

132‧‧‧Slot bottom

14‧‧‧Keychain

15‧‧‧ raised

16‧‧‧ Tower

160‧‧‧Mounting slot

2‧‧‧ conductive terminals

21‧‧‧holding department

22‧‧‧Contact

220‧‧‧Free End

23‧‧‧Welding Department

3‧‧‧ metal case

30‧‧‧Main body

31‧‧‧ Upper holding section

32‧‧‧ Lower holding section

33‧‧‧Side holding section

34‧‧‧ Covering Department

4‧‧‧Locking mechanism

5‧‧‧ lock plate

6‧‧‧electronic card

60‧‧‧ base

61‧‧‧Socket

no

101‧‧‧ Insertion surface

103‧‧‧Bottom

110‧‧‧Terminal Slot

13‧‧‧ central slot

131‧‧‧ steps

132‧‧‧Slot bottom

15‧‧‧ raised

21‧‧‧holding department

22‧‧‧Contact

220‧‧‧Free End

23‧‧‧Welding Department

34‧‧‧ Covering Department

Claims (10)

A card edge connector includes:
A longitudinally-insulating body is provided with a mounting surface and an insertion surface opposite to the mounting surface. The insulating body is recessed with a longitudinal central slot from the insertion surface, and the insulating body is from the insertion surface A plurality of terminal slots recessed on both sides of the central slot;
A plurality of conductive terminals are housed in the insulating body. The conductive terminals include a holding portion fixed to the insulating body and an elastic contact portion extending from one end of the holding portion. Project into the central slot; and a metal shell, which shields the insulating body;
Wherein, the metal housing includes a covering portion that at least partially covers the terminal slot, and a protrusion is provided between the insulating body and the covering portion to form a gap between the covering portion and the insertion surface. The card edge connector according to item 1 of the scope of patent application, wherein the protrusions are integrally formed on the insertion surface of the insulating body, the protrusions extend along the arrangement direction of the plurality of terminal slots, and each terminal The protrusions are provided beside the grooves or the protrusions are provided beside some of the terminal grooves. The card edge connector according to item 2 of the scope of patent application, wherein, on the insertion surface of the insulating body, the center slot is located inside, the protrusion is adjacent to the terminal slot, and The protrusion is disposed outwardly from the terminal slot. The card edge connector according to item 1 of the scope of patent application, wherein the contact portion of the conductive terminal is provided with a free end, and the free end faces the central slot and abuts on the slot wall of the terminal slot. The free end extends along the terminal groove toward an insertion surface of the insulating body without exceeding the insertion surface. The card edge connector according to item 1 of the scope of patent application, wherein the insulating body is provided with two side walls opposite to each other and two end walls connecting the two side walls, and the metal shell comprises a side of the side wall which is respectively attached to the outside of the side wall and is opposite to each other The two independent metal shells are each provided with the covering portion. The card edge connector according to item 5 of the scope of patent application, wherein each metal housing is further provided with a longitudinal body portion, an upper retaining portion bent and extended from the top edge of the body portion, and a The lower holding portion bent and extended from the bottom edge and the two side holding portions bent and extended from the longitudinal ends of the main body portion, the upper and lower holding portions are respectively held on the top surface and the bottom surface of the side wall. The two side latching portions are respectively latched on the end walls of the insulating body. The card edge connector according to item 6 of the scope of patent application, wherein an upper surface of the upper retaining portion is flush with an upper surface of the covering portion. The card edge connector according to item 6 of the patent application scope, wherein the central slot is provided with a key buckle connected to two side walls, and the upper and lower retaining portions are fastened to the side wall adjacent to The area of the button. The card edge connector according to claim 8 of the patent application scope, wherein the side wall of the insulating body is provided with a receiving groove recessed from the insertion surface in an area adjacent to the key button, and the upper part of the metal shell is buckled. And the lower retaining portion is oppositely retained on the bottom surface of the side wall, the bottom surface of the side wall is higher than the mounting surface of the insulating body, and the side wall is adjacent to the key A step portion slightly higher than the mounting surface of the insulating body is provided on the bottom surface area of the buckle, the lower holding portion is buckled on the step portion, and an end wall of the insulating body is provided with an end surface facing in the longitudinal direction thereof. A recessed groove, and the side buckling portions of the two metal shells are clamped in the groove. The card edge connector according to item 1 or 9 of the scope of patent application, wherein the central slot is provided with two steps at two ends in the longitudinal direction, and a relatively low step is formed between the two steps. The bottom of the slot, the distance from the bottom of the slot to the upper surface of the metal shell is not greater than 4.00 mm, the bottom of the insulating body is formed with a seat bottom, and the distance from the bottom of the slot to the bottom of the insulating body is greater than 2.40 mm .