CN2770163Y - Planar grid array electric connector - Google Patents

Abstract

The utility model discloses a planar grid array electric connector, which is used for that a chip module is electrically connected to a circuit plate. The utility model comprises an insulating body and a plurality of conductive terminals which are held into the insulating body, the insulating body is provided with a supporting surface for supporting the chip module and a terminal holding slot for holding the conductive terminals, and each of the conductive terminal comprises a fixedly holding part and a first elastic arm which extends from the fixedly holding part. Furthermore, a first contact part which is electrically connected with the chip module in a conducting way is arranged on the first elastic arm, the first contact part projects out of the supporting surface of the insulating body with a certain height, and the fixedly holding part section of the conductive terminal projects out of the supporting surface, wherein the insulating body has the structure that a raised table is outwards arranged on the supporting surface along a direction of the assembly connection of the chip modules, the first contact part of the conductive terminal projects out of the supporting surface with a certain height which is higher than that of the raised table, and furthermore, the fixedly holding part of the conductive terminal projects out of the supporting surface with a height which is lower than that of the raised table. When the chip module is pressed in, with the supporting action of the raised table, the exact and conductive connection of conducting strips corresponding to the conductive terminals of the electric connector and the chip module. Therefore, the good electrically conductive connection and the signal transmission performance of the electric connector is ensured.

Description

Electric connector of planar grid array

[technical field]

The utility model is about a kind of electric connector, refers to a kind of in order to accept chip module and to be electrically connected to planar grid battle array electric connector on the circuit board especially.

[background technology]

Electric connector of planar grid array is widely used in electric connector field, be used for chip module is electrically connected to circuit board, and by the mode of pushing realize and chip module between be electrically conducted, and chip module is provided with the conducting strip that connects with electric connector.Relevant prior art such as United States Patent (USP) announce the 6th, 296, and No. 495 institute discloses, and this electric connector generally comprises insulating body and is contained in the interior some terminals of leading of insulating body.Design feature because of planar lattice array, conducting terminal generally is provided with elastic arm, be provided with the contact site that the conducting strip with chip module is electrically conducted in elastic arm, these conducting terminals have elasticity preferably, need conducting terminal to be applied an external pressure by other assemblies, make after the conducting terminal generation strain to push with the conducting strip of chip module and contact by its elastic force, thereby reach being electrically conducted of conducting terminal and chip module conducting strip, conducting terminal is electrically conducted away from the other end and the circuit board of chip module, thereby realizes being electrically conducted of chip module and circuit board.

See also Fig. 7 to Fig. 8, existing a kind of electric connector of planar grid array 9, its insulating body 91 are provided with the continuing surface 912 of accepting chip module 8 and the winding faying face 913 to circuit board 7; This insulating body 91 offers the plurality of terminals accepting groove 911 that runs through its continuing surface 912 and faying face 913, conducting terminal 92 is contained in the terminal containing slot 911, conducting terminal 92 is provided with holding parts and establishes 923 first, second elastic arms 921,922 that reach from holding parts 923 extensions, first elastic arm 921 is provided with first contact site, 9211, the second elastic arms 922 that the conducting strip 81 with chip module 8 is electrically conducted and is provided with second contact site 9221 that the conducting strip 71 with circuit board 7 is electrically conducted.

Conducting terminal 92 is generally formed by the metal material punching press, conducting terminal 92 is not before being inserted in terminal receipts groove 911, one of its holding parts 923 end links to each other with the terminal material belt (not shown), plurality of conductive terminals 92 mat terminal material belts and be linked as a row, when conducting terminal 92 does not plug in the terminal storage tank 911 as yet fully, promptly cut away terminal material belt, with smooth steel plate conducting terminal 92 is pressed into terminal containing slot 911 at last, but steel plate can only be pressed onto conducting terminal 92 holding parts 923 and protrude in terminal containing slot 911 outer certain distances slightly, perhaps be pressed onto mutually concordantly at most, and the holding parts 923 of conducting terminal 92 can't be pressed in the terminal containing slot 911 fully with continuing surface 912.

In addition, for guaranteeing to contact with first contact site 9221 of conducting terminal 92, conducting strip 81 operated by rotary motion of chip module 8 must be bigger, like this, when the holding parts 923 of conducting terminal 92 is outside terminal containing slot 911 stretches out continuing surface 912, conducting terminal 92 except that its first contact site 9221 with chip module 8 corresponding conducting strips 81 contact, its holding parts 923 also may contact by conducting strip 81, even can contact with adjacent conductive sheet 81 when bad (as the normotopia degree), thereby cause conducting strip 81 short circuits of conducting terminal 92 and chip module 8, and then influence being electrically conducted and signal transmission performance of electric connector.

Therefore, be necessary to design a kind of new electric connector of planar grid array, to overcome above-mentioned defective.

[utility model content]

The technical problems to be solved in the utility model is to provide a kind of electric connector of planar grid array, in order to accept chip module and to be electrically connected to circuit board, short circuit problem when this electric connector can avoid its conducting terminal and chip module to connect, thus guarantee to be electrically conducted reliably and signal transmission performance.

For solving the problems of the technologies described above, electric connector of planar grid array of the present utility model, in order to chip module is electrically connected to circuit board, it comprises insulating body and is contained in plurality of conductive terminals in the insulating body; The surface of insulating body adjacent chips module is a continuing surface, in order to accept chip module, insulating body is provided with the plurality of terminals accepting groove to accommodate conducting terminal, conducting terminal comprises holding parts and first elastic arm that extends from holding parts, first elastic arm is provided with first contact site that is electrically conducted with chip module, and this first contact site protrudes in the outer certain altitude of insulating body continuing surface; The holding parts of conducting terminal partly protrudes in outside the continuing surface; Wherein, insulating body upwards is provided with the boss of certain altitude with chip module winding direction in its continuing surface edge, the height of this boss protrudes in the height of continuing surface less than first contact site of conducting terminal, and stretches out the outer height of continuing surface greater than the holding parts of conducting terminal.

Compared with prior art, the utlity model has following advantage: because insulating body is provided with the boss of certain altitude in the continuing surface of its carries chips module, when chip module is pressed into, chip module is supported on the boss, its conducting strip only electrically contacts with first contact site of corresponding conducting terminal, and can not contact with the holding parts of conducting terminal, can not contact with the holding parts of contiguous conducting terminal yet, thereby can avoid connecting the short circuit problem that causes, guarantee that electric connector well is electrically conducted and signal transmission performance reliably because of the holding parts and the chip module of conducting terminal.

[description of drawings]

Fig. 1 is the stereogram of the utility model electric connector of planar grid array one embodiment and conducting terminal thereof.

Fig. 2 is the partial enlarged drawing of electric connector of planar grid array circle H part shown in Figure 1.

Fig. 3 is that electric connector of planar grid array shown in Figure 1 and its conducting terminal are contained in the cutaway view in the insulating body.

Fig. 4 is electric connector of planar grid array shown in Figure 1 and chip module and the circuit board assembled sectional view when connecting.

Fig. 5 is another embodiment of the utility model electric connector of planar grid array and chip module and the circuit board assembled sectional view when connecting.

Fig. 6 is the assembled sectional view of the utility model electric connector of planar grid array when an embodiment and chip module and circuit board connect again.

Fig. 7 is the stereogram of existing electric connector of planar grid array.

Fig. 8 is electric connector of planar grid array shown in Figure 7 and chip module and the circuit board assembled sectional view when connecting.

[embodiment]

See also Fig. 1 to Fig. 3, the electric connector of planar grid array 1 of a kind of embodiment of the utility model is in order to accept chip module 2 and to be electrically connected to circuit board 3 (Fig. 4 reference).This electric connector of planar grid array 1 mainly comprises insulating body 11 and is contained in the interior plurality of conductive terminals 12 of insulating body.

Insulating body 11 is roughly the rectangle frame body structure, and it has respectively two relative surfaces with chip module 2 and circuit board 3 windings, and wherein the surface in order to carries chips module 2 is a continuing surface 111, and winding to the surface of circuit board is a faying face 112; This insulating body 11 offers the plurality of terminals accepting groove 113 that runs through its continuing surface 111 and faying face 112, in order to the conducting terminal 12 of accommodating respective numbers, is provided with interval 114 between the sub-accepting groove 113 of adjacent both ends.This insulating body 11 also offers perforate 116 in its central position.

Insulating body 11 is provided with boss 115 around the periphery of its continuing surface 111, this boss 115 protrudes in continuing surface 111 certain altitude A in direction that electric connector 1 and chip module 2 are connected with group on mutually.

Conducting terminal 12 is contained in the terminal containing slot 113, and it roughly is symmetrical structure.Conducting terminal 12 is stamped to form by the plate-shape metal material, it comprises holding parts 121 and first, second elastic arm 122,123 that extends in the same way from holding parts 121 relative both sides up and down respectively, end in first elastic arm 122 is provided with first contact site 1221, this first contact site 1221 protrudes in the continuing surface 111 of insulating body 11, electrically to contact with the conducting strip 21 of chip module 2, end in second elastic arm 123 is provided with second contact site 1231, this second contact site 1231 protrudes in the faying face 112 of insulating body 11, is electrically conducted with the conducting strip 31 with circuit board 3; Wherein to protrude in the height of continuing surface 111 be B to first contact site 1221, and this height B protrudes in the height A of continuing surface 111 greater than the boss 115 of insulating body 11.Holding parts 121 parts protrude in outside the continuing surface 111 of insulating body 11, its projecting height C, and this height C protrudes in the height A of continuing surface 111 less than the boss 115 of insulating body 11.

See also Fig. 4, when chip module 2 being pressed into insulating body 11 and making it to connect with electric connector 1, chip module 2 is supported on the boss 115, bed hedgehopping supporting role by means of boss 115, chip module 2 does not directly contact with continuing surface 111, and because boss 115 protrudes in the height A of continuing surface 111 protrudes in continuing surface 111 less than conducting terminal 12 first contact sites 1221 height B, and protrude in the height C of continuing surface 111 greater than the holding parts 121 of conducting terminal 12, like this, the conducting strip 21 of chip module 2 only contacts with first contact site 1221 of corresponding conducting terminal 12, and can not contact with the holding parts 121 of conducting terminal 12, can not contact with the holding parts of contiguous conducting terminal yet, thereby conducting terminal 12 is connected with the corresponding conducting strip 21 of chip module 2 is accurately stable, guarantee that 2 excellent electrical property of electric connector 1 and chip module are connected and signal transmission performance.

It is to be noted, electric connector of planar grid array of the present utility model also not only is confined to above-described concrete structure, also can be other various suitable corresponding constructions that are electrically conducted by mode of pushing and chip module, the boss 115 of insulating body 11 also is not confined to be positioned at the circumferential perimeter of continuing surface 111, it can also be positioned at other positions of continuing surface 111, please refer to Fig. 5, boss 115 is the central openings 116 periphery settings around insulating body 11; Again as shown in Figure 6, boss 115 can also be located on the interval 114 of 113 of the adjacent two-terminal accepting grooves of head and the tail.In a word; as long as the boss 115 of certain altitude A is set on mutually in continuing surface 111 upper edges of insulating body 11 and chip module 2 winding directions; and the height A of boss 115 protrudes in the height B of continuing surface 111 less than conducting terminal 12 first contact sites 1221; and protrude in the height C of continuing surface 111 greater than the holding parts 121 of conducting terminal 12; no matter boss 115 be located on the continuing surface 111 particular location how; all can solve technical problem of the present utility model, all drop in the protection range of the present utility model.

Claims (5)

1. electric connector of planar grid array, in order to the carries chips module and be electrically connected to circuit board, it comprise insulating body and accommodate with insulating body in plurality of conductive terminals, insulating body is a continuing surface near the surface of chip module, in order to accept chip module, be provided with the plurality of terminals accepting groove in the insulating body, conducting terminal is contained in the corresponding terminal containing slot, conducting terminal comprises holding parts and first elastic arm that extends from holding parts, first elastic arm is provided with the contact site that is electrically conducted with chip module, this first contact site protrudes in the outer certain altitude of insulating body continuing surface, and the holding parts of conducting terminal partly stretches out outside the insulating body continuing surface; It is characterized in that: insulating body upwards is provided with the boss of certain altitude in its continuing surface upper edge and chip module winding direction, the height of boss protrudes in the height of insulating body continuing surface less than first contact site of conducting terminal, and stretches out the height of insulating body continuing surface greater than the holding parts of conducting terminal.

2. electric connector of planar grid array as claimed in claim 1 is characterized in that: described boss is positioned at the circumferential perimeter of the continuing surface of insulating body.

3. electric connector of planar grid array as claimed in claim 1 is characterized in that: insulating body is provided with perforate in its central position, and described boss is for being positioned at described perforate periphery.

4. electric connector of planar grid array as claimed in claim 1 is characterized in that: described boss is between the sub-accepting groove of adjacent both ends on the continuing surface.

5. as each described electric connector of planar grid array of claim 1 to 4, it is characterized in that: described conducting terminal also comprises second elastic arm, it is provided with from described holding parts downside and relative in the same way extension with first elastic arm, be provided with second contact site in this second elastic arm, in order to be electrically conducted with circuit board.

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