KR20030074133A - Card edge connector - Google Patents

Abstract

The present invention relates to a card edge connector. The card edge connector is electrically connected to the first circuit board for insertion of the second circuit board so that the second circuit board can be electrically connected to the first circuit board. By means of an interfering device disposed on one side of the support arm of the card edge connector, the second circuit board is fixed inside the card edge connector. The upper side of the interference device is higher than the surface of the second circuit board. If the user wants to remove the second circuit board from the card edge connector, a force is applied to the interfering device such that the two support arms are slightly outwardly extending, so that the second circuit board can be removed and the conventional card edge connector It is also possible to eliminate the risk of free breakage of the free ends of the support arms associated with the wheels.

Description

Card edge connector {CARD EDGE CONNECTOR}

TECHNICAL FIELD The present invention relates to a card edge connector, and more particularly, to a card edge connector placed on a lug of a support arm to be used as a point of action of a force for cutting an electrical connection between an electronic card and a card edge connector.

First, reference is made to Figs. 1 and 2, which show a conventional card edge connector 6. Figs. The card edge connector 6 is electrically connected to a circuit board (not shown) for insertion of the electronic card 7 so that the electronic card 7 can be electrically connected to the circuit board. The card edge connector 6 includes an insulator housing 8 having a plurality of conductive terminals 84 mounted therein and a pair of support members 9. The insulator housing 8 has an elongated body 81. The front surface of the main body 81 is formed with a long insertion groove 82 for inserting the connection end 71 therein. Two sidewalls of the insertion groove 82 of the insulator housing 8 along the longer side extend through the insulator housing 8 and include a plurality of terminal accommodating slots (not shown) for receiving respective conductive terminals 84. It is provided with each. Each conductive terminal 84 has a contact end disposed in the insertion groove 82 and a soldered end projecting out of the insulator housing 8 so as to be electrically connected with the circuit board. When the connecting end 71 of the electronic card 7 is inserted into the insertion groove 82, the plurality of contact portions 72 on the connecting end 71 are electrically connected to the contact ends of the conductive terminals 84. Two sides of the electronic card 7 have recesses 73, respectively. The two ends of the sides of the insulator housing 8 with insertion grooves extend integrally and in the same direction to form individual support arms 83. Each support arm 83 has a horizontal portion 831 disposed on the inner side and a vertical portion 832 disposed on the outer side and extending vertically from the horizontal portion 831. The elastic extension 833 extends horizontally forward from the vertical portion 832. The two extensions 833 have respective lugs 834 protruding from their respective inner surfaces towards each other within the length range. Lugs 834 are respectively received in corresponding recesses 73 on the left and right sides of the electronic card 7 to secure the electronic card 7 in the card edge connector 6. The electrical connection between the electronic card 7 and the card edge connector 6 is the free end of the extension 833 (indicated by reference numeral 838 in the drawing and referred to as a force acting portion 838 to facilitate insulation below). Part) to be cut off, as a result of which the user can facilitate the removal of the card edge connector 6.

The pair of support members 9 are respectively mounted on two support arms 83 and press-in with malleable metal sheets for insertion into the horizontal portion 831 of each support arm 83. Perforations and pressing of the soldering portion 92 extending horizontally from the portion and the restriction portion 93 integrally extending to form a substantially C-shape to limit and surround the deviation of each support arm 83. Respectively formed by 91. Restriction 93 has an enlarged head end 931 that can cover the surface of each lug 834.

The support member 9 is arranged to limit the deviation of the support arm 83. The force acting portion 838 of each support arm allows the lug 834 to be released from the corresponding recess 73 in the electronic card 7 to remove the electronic card 7 from the card edge connector 6. It is the point of action of the force which causes the lugs 834 of the two support arms 83 to be displaced in a direction away from each other. As a result, the force acting portion 838 is not surrounded by the restricting portion 93 and cannot be surrounded.

When the electronic card 7 is inserted into the card edge connector 6, the front end 71 of the electronic card 7 is inserted into the insertion groove 82 of the insulator housing, and the contact portion 72 of the front end is inserted. Corresponding contact with the contact ends of the plurality of conductive terminals 84 in the groove 82, the electronic card 7 is located between the two support arms 83, the lug 834 is an electronic card 7 Are respectively disposed in the corresponding recesses 73 on the left and right sides of the "

However, upon removal of the electronic card 7 from the card edge connector 6, a force must be applied to the force acting portion 838. Because the force acting portions 838 are narrow strips, they may easily break at the lugs 834 of the support arms. Since the other parts of the support arm 83 are surrounded by the support member 9, when the force acting portion 838 is broken, the user cannot exert a force on the other parts of the support arm 83. Thus, the electronic card 7 cannot be removed from the card edge connector 6. Also, when removing the electronic card 7 from the card edge connector 6, the user's finger is formed by the body 81 and the two support arms 83 to exert a force on the force acting portion 838. It must be placed in the cooperative space and located in front of the electronic card 7. In other words, the support arm 83 of the card edge connector 6 should be long enough to have a sufficient length to allow operation by the fingers when the electronic card 7 is placed in the card edge connector 6. Thus, the conventional card edge connector 6 occupies a relatively large area, thus contrary to the recent trend of light, thin, short and small electronic cards.

It is an object of the present invention to provide a card edge connector that effectively overcomes the disadvantages associated with the easy breaking of the applied portion of the support arms of a conventional card edge connector.

Another object of the present invention is to provide a card edge connector which prevents the support arms of the insulator housing from breaking when interference with the circuit board housed therein is eliminated.

Another object of the present invention is also to provide a card edge connector, which is provided on the support arms, as the working points of the force, having interference devices in which the support arms are integrally formed.

Another object of the present invention is to provide a card edge connector formed of plastic material as the point of action of the force and also of the force.

Another object of the present invention is to provide a card edge connector having a grounding device for connecting with a circuit board housed therein for grounding.

Another object of the present invention is to provide a card edge connector having support arms which are shorter in length and take up less space.

The card edge connector of the present invention is provided with a grounding device for connecting with a circuit board housed therein for grounding on the support arm.

Thus, the card edge connector of the present invention is electrically connected to the first circuit board and is individually and detachably fixed on the support arms to limit the rotation of the respective support arms in the insulator housing having an elongated body and in a virtual plane. And a pair of supporting members, wherein the body has one surface with an elongated insertion groove formed therein for insertion of the second circuit board, and a plurality of slots are provided for receiving terminals, respectively, each terminal having an insertion groove. A contact end disposed therein and a coupling end projecting outwardly of the insulator housing to electrically connect with the first circuit board, the two ends along the long sides of the body each having a support arm extending therefrom, Lugs are provided separately on adjacent surfaces, and the second circuit board is electrically connected to the contact ends of the terminals. After being connected and inserted into the insertion groove, it is positioned in the first position, and when the second circuit board is positioned in the first position, each lug interferes with the indentation.

The card edge connector of the present invention may also be provided with a ground resilient plate which connects with a circuit board housed therein for grounding on at least one support arm.

In addition, the upper side of each lug may protrude from the upper side of the circuit board and serve as a point of action of the force.

Lugs may also be located at the distal end of the support arm.

In addition to the other objects and advantages of the present invention, the organic relationship and manner of construction and operation of the present invention is best understood by reference to the following detailed description taken in conjunction with the following drawings in which like reference numerals indicate like elements. I can understand.

1 is a schematic diagram in which a conventional card edge connector and a memory card are combined.

Figure 2 is a schematic view of a conventional card edge connector before assembling the support arms of the insulator housing to the support members.

Figure 3 is a perspective view of the first preferred embodiment of the card edge connector according to the present invention.

Figure 4 is an exploded view of the main components of the first preferred embodiment of the card edge connector according to the present invention, showing the support members in a state before they are coupled with the support arms of the insulator housing.

Fig. 5 is a schematic diagram showing a coupling between an electronic card and a first preferred embodiment of a card edge connector according to the present invention;

Figure 6 is a perspective view of the second card edge connector of the second preferred embodiment.

Figure 7 is an exploded view of the main component part of the second preferred embodiment of the card edge connector according to the present invention, showing the support members and the elastic plates in a state before they are coupled with the support arms of the insulator housing.

Figure 8 is a schematic diagram showing coupling with an electronic card and a second preferred embodiment of a card edge connector according to the present invention.

<Explanation of symbols for the main parts of the drawings>

1, 6: card edge connector

2, 7: electronic card

8, 11: insulator housing

9, 13: support member

82, 107: insertion groove

83, 112: support arm

110, 117: slot

116, 834: Rugs

While the present invention is capable of other forms of embodiment, specific embodiments thereof are shown in the drawings and described in the detailed description because they are considered to be illustrative of the principles of the invention, and the invention is disclosed and illustrated herein. It is not limited to bars.

The card edge connector 1, 1 ′ of the present invention allows the second circuit board to be electrically connected to the first circuit board 100 by the card edge connector 1, 1 ′ (FIGS. 5 to 8). It is configured to be soldered to the first circuit board 100 (as shown in FIG. 3 or 6) for insertion of the second circuit board 2 as shown. In subsequent embodiments, the first circuit board is referred to as the circuit board 100, while the electronic card 2 represents the second circuit board.

First, reference is made to Figs. 3 and 4, which show a first preferred embodiment of the present invention. In this embodiment, the card edge connector 1 soldered onto the circuit board 100 includes an insulator housing 11, a plurality of conductive terminals 12, and a pair of support members 13. The insulator housing 11 has an elongate rectangular body 101. The rectangular body 101 has a first face 102 at the front, a second face 103 at the rear, and an upper face 104. The first face 102 is formed with an insertion groove 107 along the longer side for insertion of the connecting end of the electronic card 2. The insertion groove 107 of the insulating body 11 has a lower side wall 109 and an upper side wall 108 having a plurality of slots extending from the first side 102 to the second side 103. Each slot 110 individually receives one of the conductive terminals 12. The conductive terminal 12 has a contact end 121 disposed in the insertion groove 107 to electrically contact a plurality of contact portions of the connection end of the electronic card 2 inserted into the insertion groove 107. The coupling end 123 of the conductive terminal 12 extends from the second surface 103 to the outside of the main body 101 and is electrically connected to the plurality of contact portions of the circuit board. The electrical connection between the coupling end 123 of the conductive terminal 12 and the contact on the circuit board may be coupled to the coupling end 123 through a through hole in the circuit board, for example for reversed furnace backflow, soldering, or the like. Can be achieved by any conventional manner, such as surface mounting technique (SMT).

The two ends of the insulator housing 11 along the longer side each have a support arm 112 which integrally protrudes forward. Each support arm 112 has a horizontal portion 113 and an upright portion 114 extending vertically from an outer surface of the horizontal portion 113, and the interference device 116 supports the support arm from the front end of the upright portion 114. It is provided to protrude horizontally toward the other one of the (112). In this and subsequent embodiments, the interfering device 116 is a lug that is received in an individual one of the recesses 21 in the left and right sides of the electronic card 2 to generate interference with the electronic card 2. to be. The lug 116 is higher than the surface of the upright 114 of the support arm 112 and forms the shoulder 118 with the surface of the upright 114. The condition of the height of the lug 116 is that when the electronic card 2 is positioned in the card edge connector, the lug 116 must protrude from the surface of the electronic card 2, as described in the subsequent paragraphs. Each horizontal portion 113 has an open card slot 117 extending from front to back. The card slot 117 has a generally T-shaped cross section and has a narrow opening at the top and a wide cavity at the bottom. The horizontal portion 113 extends forward by a length shorter than the length of the upright portion 114 extending forward.

The pair of support members 13 are formed by perforating and bending the metal sheet. Each support member 13 is generally U-shaped to enclose a press 131 insertable into the card slot 117 in each support arm 112 and an upright portion 114 of each support arm 112. It includes a limiting portion 133 extending from the outer surface of the pressing portion 131 formed as. The U-shaped limiting portion 133 includes a laterally extending lower first horizontal portion 1331, a laterally extending upper second horizontal portion 1333, and an upright connecting portion 1335 interconnecting the two horizontal portions. The upright connection 1335 extends further to the rear to form the fixing portion 1335. Fixing portion 1335 may be disposed on first circuit board 100 by soldering for grounding purposes and to secure support member 13 to first circuit board 100 in accordance with requirements. The lower first transverse portion 1331 further extends forwardly and laterally toward the other of the support arms 112 to form a retaining hook 1338 having an L-shaped body and an upward end portion.

Referring to FIG. 3, when mounting the support member 13 on each support arm 112, the pressing portion 131 is inserted into the card slot of each support arm 112, and the restriction portion is each support It is surrounded by the bottom, top and outer sides of the arm 112. At this time, the first horizontal portion 1331 is below the bottom surface of each support arm 112, and the second horizontal portion 1333 is on the top of each support arm 112, and the upright connecting portion 1335 ) Maintains a predetermined clearance with the support arm 112 on the outer side of each support arm 112, and this function is described below. The fixing portion 1335 extending rearward from the upright connection 1335 and disposed on the outer surface of each support arm 112 may be soldered to the circuit board using any conventional method, and may be grounded according to requirements. Can also be used as. The L-shaped retaining hooks 1338 are disposed on the inner side of each support arm 112 so that when the electronic card 2 is not mounted to the card edge connector 1 and approaches each other and carries the risk of breakage, Maintain a predetermined distance with the support arm 112 so that improper manipulation of the support arm 112 can be avoided. This is one of the safety measures provided by the present invention.

In general, the left and right sides of the electronic card 2 have pressed parts 22, respectively. Referring to Fig. 5, when it is necessary to position the electronic card 2 in the card edge connector 1, the electronic card 2 must first be disposed to be inclined so that the connecting end is inserted into the insertion groove 107. Thereafter, the electronic card 2 is pressed downward to be positioned in the card edge connector 1. At this time, the lug 116 of each support arm 112 is pressed against the corresponding side of the electronic card 2 to maintain a constant electrical connection between the electronic card 2 and the card edge connector 1. 22, the lug 116 protrudes from the surface of the electronic card 2. If it is necessary to remove the electronic card 2 from the card edge connector 1, the user takes two lugs 116 as the point of action of the force so that each support arm 112 rotates on the virtual plane 4. Apply force. Since the restricting portion 133 surrounding the support arm 112 maintains a predetermined clearance with the support arm 112, the free end of the support arm 112 can be displaced to a limited range. However, if the force exerted by the user is excessive, the restricting portion 133 will limit the displacement of the support arm 112 to ensure that the support arm 112 does not break. Since the support arm 112 rotates on the imaginary plane 4, the lug 116 on the support arm 112 is retractable from the pressed portion 22, resulting in a lug 116 from the electronic card 2. The interference caused by can be mitigated. Thus, the user can remove the electronic card 2.

The card edge connector 1 of the present invention uses the lug 116 as a point of action of the force to mitigate the interference on the electronic card 2. Since the lug 116 has a relatively large area, the strength will also be relatively strong. Thus, there will be no risk of breakage as in the prior art.

In addition, since the card edge connector 1 of the present invention uses the lug 116 as a point of action of the force to mitigate the interference on the electronic card 2, the user has to move from the electronic card 2 placed in the transverse direction. The lug 116 can be manipulated. Thus, the support arm 112 of the card edge connector 1 need not have an additional length for receiving a finger for manipulation as in the prior art. As a result, the length of the support arm 112 can be shortened compared to the prior art and can reduce the area used. This is very good for already dense circuit board 100.

As shown in Figs. 6, 7 and 8 showing the second preferred embodiment, in this embodiment, the difference between the card edge connector 1 'and the card edge connector 1 of the first preferred embodiment. The pair of ground elastic plates 3 used as the grounding means of the electronic card 2 is added. In addition, in order to mount the elastic plate 3, the upper surface of each support arm 112 is formed of a narrow groove 119 extending through the support arm 112. The following description relates to the differences between them. The same structural elements as the structural elements of the first preferred embodiment will be represented by the same reference numerals. The elastic plates 3 are metallic plates formed by stamping, each having a pressing part 31 and abutting part 33. At least one curvature is applied so that the abutting part 33 and the pressing part 31 do not lie on the same plane. The pressing portion 31 may be inserted downward into the narrow groove 119 through the upper surface of the support arm 112 to place the abutting portion 33 on the inner side of each support arm 112. When the support member 13 is assembled to each support arm 112, each elastic plate 3 is positioned between the upper surface of each support arm 112 and each second horizontal portion 1333, and is elastic The free end of the pressing portion 33 of the plate 3 is in contact with the bottom of each first horizontal portion 1331, and the abutting portion 33 of the elastic plate 3 is on the inner side of each supporting arm. Is placed. When the electronic card 2 enters the card edge connector 1, the abutting portion 33 will not interfere with the entry of the electronic card 2 by its elasticity. When the electronic card 2 is positioned in the card edge connector 1, the abutment 33 of the elastic plate 3 will abut against the surface of the electronic card 2 to form a ground. Since other aspects of the construction of the card edge connector do not change, a detailed description thereof has been omitted herein for clarity.

While the preferred embodiments of the invention have been shown and described, those skilled in the art will recognize that various changes can be made to the invention within the spirit and scope of the appended claims.

According to the invention, there is provided a card edge connector, in particular lying on the lug of the support arm, which serves as a point of action of the force which interrupts the electrical connection between the electronic card and the card edge connector.

Claims (8)

A card edge connector configured to make an electrical connection between a first circuit board and a second circuit board having two opposing surfaces each having an indentation, A first surface having an insertion groove formed along an elongated side for insertion of a second circuit board, a plurality of slots extending through the elongated side, and two ends of the first surface along the elongated side An insulator housing having an elongated body, each having support arms that protrude and are disposed adjacent each other and provided with lugs protruding integrally at the distal end; A contact end disposed separately in the slots, the contact end disposed in the insertion groove for making electrical contact with a contact portion of the second circuit board inserted into the insertion groove, respectively, and electrically connected to the contact portion of the first circuit board. A plurality of terminals having a coupling end projecting outwardly of the housing; A pair of metal support members fixed separately and detachably on said support arms to limit rotation of said respective support arms in a virtual plane, And wherein each of the lugs interfere with a corresponding one of the indentations when a second circuit board is positioned within the card edge connector. 3. The support of claim 2, wherein each of the support arms has a horizontal portion and a vertical portion extending vertically from an outer surface of the horizontal portion, wherein each of the lugs is provided on a free end of the vertical portion and is a separate one of the support arms. Card edge connector, characterized in that protruding from the surface of the. The support of claim 1, wherein each of the support members includes a press for insertion into the horizontal portion of an individual one of the support arms, the restricting portion being generally U to surround the upright portion of the individual one of the support arms. Card edge connector, characterized in that extending from the outer surface of the pressing portion to form a female shape. 4. The card edge connector according to claim 3, wherein the limiting portion further extends in the direction of the body to form a fixing portion for grounding the first circuit board. The method of claim 1, wherein at least one of the support arms is provided with a narrow groove extending therethrough for mounting a ground resilient plate therein to serve to ground the second circuit board positioned within the card edge connector. Card edge connector. 6. The elastic plate according to claim 5, wherein the elastic plate is formed by perforating a metal sheet, and has a pressing portion and abutting portion, wherein the abutting portion and the pressing portion do not lie on the same plane, and the abutting portion is supported by the support arms. And the pressing portion is inserted into the narrow groove so as to be disposed on the inner side of the one of the card edge connectors. A card edge connector configured to make an electrical connection between a first circuit board and a second circuit board having two opposing surfaces each having an indentation, An insertion groove for inserting the second circuit board is formed on one side of the long side, and a plurality of slots extending through the short side are formed. An insulator housing having; A contact end disposed separately in the slots, the contact end disposed in electrical contact with one end of the second circuit board inserted into the insertion groove, respectively; and a coupling end arranged to electrically connect with the first circuit board. A plurality of terminals having; A pair of metal support members individually and detachably secured to said support arms to limit rotation of said respective support arms in an imaginary plane; When a second circuit board is positioned within the card edge connector, each may interfere with one of the indentations of the second circuit board, and a force may be applied directly to each to mitigate the interference of the second circuit board, forming And a pair of interfering devices formed separately and integrally on adjacent surfaces of the support arms such that each protrudes from a surface of an individual one of the support arms to be formed. 8. The card edge connector of claim 7, wherein at least one of the support arms includes a ground resilient plate extending to serve to ground a second circuit board positioned within the card edge connector.