CN1082733C - Edge connector - Google Patents

Abstract

An edge connector has an insulating body, and a slot for plugging a circuit board is provided on the insulating body. At least one movable identification key can be inserted into or pulled out of the slot in accordance with different circuit boards to prevent the circuit board from being inserted in reverse. The movable identification key includes a base and a pair of fixed feet that are integrally formed with the base and parallel to each other. The pair of fixed feet are used to be inserted into the slot, and have protrusions thereon that can interfere with the inner wall of the slot. The spacing between the two fixed feet is greater than the width of the terminal in the slot. When the movable identification key is inserted into or pulled out of the slot, it will not contact the terminal.

Description

Edge connector

The present invention relates to a kind of edge connector, particularly relate to a kind of edge connector that has movable identification key and can supply different circuit daughter boards to peg graft.

Because the variation of computer function, for satisfying the user its computer equipment (especially PC) is done the expansion on the function, therefore computermaker is after providing basic outfit, on computer motherboard, reserve several edge connectors again, be convenient to the user according to its circuit daughter board that need peg graft different, expand its computer function.See also Fig. 1, it is the three-dimensional exploded view of a circuit daughter board 1 and an existing edge connector 2, wherein this edge connector 2 has one and slightly is microscler insulating body 20, this insulating body 20 is along offering a central slot 21 on the longitudinally, in order to grafting circuit daughter board 1, these central authorities' slot 21 both sides have several Zhi Duanzi 22, can be electrically connected with the finger 10 that contacts of circuit daughter board 1.In order to prevent that the user is with the circuit daughter board 1 anti-inserted circuit polarities mistake that causes, the contact finger 10 of guaranteeing circuit daughter board 1 can accurately align with the terminal 22 of connector 2, this circuit daughter board 1 is provided with positioning recess 12 in 10 of fingers of contact, in order to cooperate corresponding identification key 23 in the central slot 21, this circuit daughter board 1 can correctly be inserted in the central slot 21 of this edge connector 2, and this identification key 23 and insulating body 20 one-body molded making.

Yet, the circuit daughter board 1 of difference in functionality, its position along width on the longitudinally and positioning recess 12 has nothing in common with each other.For example, based on the demand of fast processing bulk information, the transmission wide cut of such circuit daughter board 1 increases to 64 (shown in Fig. 2 B) by original 32 (shown in Fig. 2 A) gradually, and the position of both width and positioning recess is existing to be changed; And, part computer producer is in order to realize the electricity-saving function of environmental protection computer or kneetop computer, and changes power supply into power saving 3.3 volts by standard 5 volts (VOLT), because the change of circuit deploying mode, make the position of circuit daughter board 1 positioning recess 12 also change relatively, it is shown in Fig. 2 C.

Because the difference of circuit daughter board is the various circuit daughter board of pegging graft, so computermaker must install multiple edge connector on motherboard, could satisfy user's needs.Yet the space Bi Jing on the motherboard is limited, therefore obviously can't arbitrarily increase the quantity of edge connector; Moreover user regular meeting is subject to the specification of motherboard top edge connector, can't choose at random the circuit daughter board that its desire is pegged graft, and this will expand to computer function and bring difficulty; In addition, in order to adapt to different circuit daughter boards, so must have continuous edge device and its coupling of different size on the motherboard, and this will increase also and make and development cost.

The object of the present invention is to provide a kind of edge connector, it has movable identification key, can cooperate the regioselectivity ground of different circuit daughter board positioning recess to insert edge connector.

The object of the present invention is achieved like this, and a kind of edge connector promptly is provided, and has insulating body, offers the slot of a grafting one circuit daughter board on this insulating body.At least one movable identification key can cooperate different circuit daughter boards ground to insert or extract above-mentioned slot, avoids the circuit daughter board anti-inserted.This movable identification key comprises that a base portion and a pair of and this base portion are one-body molded and is parallel fixing feet each other, this to fixing feet in order to insert in the slot, has projection on it, can with slot inwall interference engagement, the spacing of two fixing feet is greater than slot inner terminal width, this movable identification key inserts or when extracting slot, not can with termination contact.

The advantage of apparatus of the present invention is that it has activity identification key, and the multiple circuit board of can pegging graft makes and expands easily, and the saving space also reduces cost.Described movable identification key optionally inserts or extracts the slot of described edge connector, thereby being chosen at random, user or assembler peg graft different circuit daughter boards on edge connector, and plug simple and easy, convenience, can not destroy the terminal of inserting the key position place.

Below in conjunction with accompanying drawing, embodiments of the invention are described, wherein:

Fig. 1 is the stereogram of circuit daughter board and existing edge connector;

Fig. 2 A-2C is different circuit daughter board schematic diagrames;

Fig. 3 A is edge connector of the present invention and movable identification key three-dimensional exploded view;

Fig. 3 B is the top view of edge connector insulating body of the present invention;

Fig. 4 is edge connector of the present invention and movable identification key part stereogram;

Fig. 5 is the stereogram of another embodiment of the movable identification key of the present invention.

See also Fig. 3 A, 3B and Fig. 4, it shows edge connector of the present invention, and it comprises that one slightly is microscler insulating body 10, number Zhi Duanzi 14 and of the present invention two movable identification keys 15.Wherein these insulating body 10 upper surfaces are formed with three pairs of mark recesses 16, and this insulating body 10 offers a central slot 11 on longitudinally, and lateral margin is formed with scarf 12 around this central authorities' slot 11, then forms a fin 13 in central slot 11 bottoms.Number Zhi Duanzi 14 is symmetric arrays in central slot 11 both sides, and two movable identification keys 15 are aimed at and indicated the mark recess 16 of inserting key position, insert downwards in the central slot 11.

This movable identification key 15 has one and slightly is microscler base portion 151, and a pair ofly extend fixing feet parallel to each other 154 in the same way by base portion 151, the distance that respectively forms 154 of oblique surface 152,153, two fixing feet on 151 liang of ora terminalis of this base portion and the both side edges designs to such an extent that be slightly larger than the width of terminal 14.The centre of fixing feet 154 is offered one and is had the sealing perforate 155 in the aperture that varies in size, and extends outward a projection 156 respectively on being close to than large opening place both side edges, and forms a recess 157 in the bottom.

Aim at the central slot 11 of mark recess 16 insertions of the slotting key position of sign when movable identification key 15 after, the oblique surface 152 of 151 liang of ora terminalis of base portion is resisted against on the scarf 12 of central slot 11, the cell wall interference engagement of these fixing feet 154 mat projections 156 and central slot 11, the recess 157 of fixing feet 154 bottoms is resisted against on the fin 13 of central slot 11 bottoms, like this, the oblique surface 152 of mat base portion 151 and the projection 156 and the recess 157 of fixing feet 154 make movable identification key 15 firmly embed in the central slot 11.The sealing perforate 155 that these fixing feet 154 centre are offered, the elasticity when contacting with cell wall in order to increase fixing feet 154 when avoiding projection 156 to contact with cell wall, causes this fixing feet 154 to rupture; In addition, this distance to 154 of fixing feet is slightly larger than the width of terminal 14, can make this movable identification key 15 when inserting or extracting central slot 11, can not touch terminal 14, to avoid destroying the terminal of inserting the key position place.As mentioned above, these movable identification keys 15 of mat, user or assembler just can choose at random the different circuit daughter board of pegging graft.

If in the time of will changing the position of inserting key, can have the aid that colludes pawl by one, pass the perforate 155 of this fixing feet 154, can be easily will original movable identification key 15 by extracting in the central slot 11, and then select other slotting key position insertion.

See also Fig. 5, it is the stereogram of movable another embodiment of identification key, the base portion 151 ＇ two ends of wherein movable identification key 15 ＇ extend outward a flat board 158, and the end at this flat board 158 extends a holding plate 159 downwards, the distance that two holding plates are 159 equals insulating body 10 outside widths just, makes this holding plate 159 can be smooth on the sidewall of insulating body 10.By this, when user or assembler's desire should movable identification key 15 be extracted, do not need other aid in central slot 11, can directly push down this holding plate 159 with finger, upwards the application of force should be extracted by movable identification key 15 again.

Claims (14)

1. An edge connector, which is plugged into a circuit sub-board with a positioning notch on the side edge, is characterized in that it includes: an insulating body, which forms at least one slot in the longitudinal direction; several terminals, located at The two sides of the slot are symmetrically arranged and electrically connected with the relevant circuits on the circuit sub-board; and at least one activity that cooperates with the position of the positioning notch on the circuit sub-board and is selectively inserted into or pulled out of the slot Type identification key. 2. The edge connector according to claim 1, wherein the insulating body is formed with several positioning notches for different circuit sub-boards and marking the corresponding position of the movable identification key inserted into the slot. Mark the notches. 3. The edge connector according to claim 1 or 2, wherein the movable identification key comprises a base and at least one fixed foot integrally formed with the base to be inserted into the slot. 4. The edge connector according to claim 1 or 2, characterized in that at least one pair of fixed legs of the movable identification key are inserted into the slot parallel to each other and the distance between the two fixed legs is greater than that of the terminal. width, and the fixed pin of the terminal in the slot will not be touched during the process of plugging and unplugging the movable identification key. 5. The edge connector according to claim 3, wherein a flat plate extends outward from both ends of the base, and a holding plate extends downward from the end of the flat plate, and the distance between the two holding plates is In order to make the holding plate close to the width of the outer side of the insulating body, and the movable identification key is pulled out from the slot by means of the holding plate. 6. The edge connector as claimed in claim 5, wherein the fixing foot comprises at least one protrusion which interferes with the inner wall of the slot. 7. The edge connector according to claim 6, wherein the fixing foot further forms a closed opening to increase the elasticity of the interference fit between the fixing foot and the groove wall. 8. The edge connector according to claim 7, wherein the bottom of the slot of the insulating body has at least one rib extending along the lengthwise direction. 9. The edge connector as claimed in claim 8, wherein said fixing foot also forms a notch at the bottom to abut against said rib. 10. A movable identification key for an edge connector, which can be selectively inserted into or pulled out of the slot of the edge connector, characterized in that it includes: a base; and at least one fixed foot, which is connected with The base is integrally formed and can be inserted into the above slot. 11. The movable identification key according to claim 10, characterized in that, the fixed feet are a pair formed integrally by the base and parallel to each other, the pair of fixed feet can be inserted into the slot, and the two fixed feet The distance between them is greater than the width of the terminals, so that the movable identification key will not touch the terminals in the slot during insertion and removal. 12. The movable identification key according to claim 11, wherein a flat plate extends outward from both ends of the base, and a holding plate extends downward from the end of the flat plate, between the two holding plates The distance is just equal to the outer width of the edge connector, so that the holding plate can be attached to the side wall of the edge connector, so that the movable identification key can be pushed upward by directly pressing the holding plate with fingers Pull out from the slot. 13. The movable identification key according to claim 12, wherein the fixing foot includes at least one protrusion capable of interference fit with the inner wall of the slot of the edge connector. 14. The movable identification key according to claim 13, characterized in that, the fixed foot also forms a closed opening, which can increase the elasticity of the interference fit between the fixed foot and the groove wall.

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