CN201523097U

CN201523097U - electrical connector

Info

Publication number: CN201523097U
Application number: CN2009203106021U
Authority: CN
Inventors: 肖玉宝; 何文
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2009-09-17
Filing date: 2009-09-17
Publication date: 2010-07-07
Anticipated expiration: 2019-09-17

Abstract

The utility model relates to an electrical connector which is used for electrically connecting a chip module with a circuit board, and comprises a base accommodating a plurality of conductive terminals, a cover body assembled on the base and a cam which is assembled between the base and the cover body and can drive the cover body to move relative to the base. The cam is provided with a stop part. A cover hole consisting of two semi-circles with different diameters is arranged on the cover body. The cover hole forms two stop walls at the junction of the two semi-circles. The rotation angle A of the stop part of the cam between the two stop walls of the cover body is larger than 180 degrees and smaller than 270 degrees, thereby leading the cam to have the self-locking function at the start position and the terminal position and preventing the situation that the cam is loosened, then drives the cover body to move relative to the base and further damages the conductive terminals.

Description

Electric connector

[technical field]

The utility model relates to a kind of electric connector, relates in particular to a kind of electric connector of chip module to the circuit board that electrically connect.

[technical background]

The electric connector relevant with the utility model is used to connect chip module and circuit board, such as the novel patent of TaiWan, China M331236 number announcement.This electric connector comprises that the pedestal, the movable group that contain plurality of conductive terminals are located at lid on the pedestal and group and are located at cam between pedestal and the lid.Cam is provided with the stop section.Lid comprises flat base portion and the protuberance that is extended setting by base portion one side.Protuberance position in the central is provided with the lid hole of accommodating the cam corresponding site.The lid hole is made up of two different semicircles of radius, is formed with two block walls perpendicular to top surface in the junction of two semicircles.The stop section of cam can be resisted against on the block wall in the cam rotary course, is used for realizing preventing that cam from crossing commentaries on classics.Cam motion angle between two block walls is spent less than 180.

Though above-mentioned electric connector has realized preventing that by the block wall cam from crossing the function of commentaries on classics, but because cam motion angle between two block walls is spent less than 180, can make cam take place loosening easily in original position and place, final position, do not have auto-lock function, and then influence the function that electrically conducts of electric connector.

For overcoming above-mentioned defective, necessaryly provide a kind of improved electric connector.

[utility model content]

The purpose of this utility model is to provide a kind of cam that prevents loosening, makes cam have the electric connector of auto-lock function.

The purpose of this utility model is achieved through the following technical solutions: a kind of electric connector, be used to electrically connect chip module and circuit board, it comprises that the pedestal that contains plurality of conductive terminals, group are located at the cam that lid on the pedestal and group are located between pedestal and the lid and can drive the relative base motion of lid.Cam is provided with the stop section.Lid is provided with the lid hole of being made up of two different semicircles of diameter.The lid hole is formed with two block walls in two semicircle junctions.The anglec of rotation of the stop section of cam between two block walls is greater than 180 degree, less than 270 degree.

Compared with prior art, electric connector of the present utility model has the following advantages: the angle that the stop section of electric connector by cam rotates between the block wall of lid is greater than 180 degree, and less than 270 degree, make cam be not easy to take place to become flexible, have auto-lock function in original position and final position.

[description of drawings]

Fig. 1 is the three-dimensional assembly diagram of the utility model electric connector.

Fig. 2 is the three-dimensional exploded view of the utility model electric connector.

Fig. 3 is another visual angle stereogram of lid of the utility model electric connector.

Fig. 4 is the stereogram of the cam of the utility model electric connector.

Fig. 5 is the vertical view of the utility model electric connector.

[embodiment]

Please join Fig. 1 to shown in Figure 5; electric connector 100 of the present utility model; be used to electrically connect chip module (not shown) and circuit board (not shown), it comprises that pedestal 1, group are located on the pedestal 1 and lid 2, the group of pedestal 1 motion relatively is located at protection member 3 between pedestal 1 and the lid 2, cam 4 and cooperates with cam 4 and is used for cam 4 is fixed on riveted joint sheet 5 on pedestal 1 and the lid 2.

Please consult shown in Figure 2 by emphasis, pedestal 1 is made by insulating material, it comprises roughly rectangular flat matrix 10 and the extension 11 that is extended setting by an end of matrix 10, matrix 10 is provided with some terminal accommodation holes 101 that run through matrix 10 and be arranged, is used to accommodate conducting terminal (not shown).The lateral surface 12 of pedestal 1 also respectively level outwards protrude out and be provided with some fixture blocks 120 and the some locating pieces 121 between fixture block 120.Extension 11 position in the central is provided with and runs through pedestal 1 and roughly rounded seat hole 110, is used to accommodate the corresponding site of cam 4.The both sides in extension 11 present holes 110 are provided with groove 111 along the direction of motion perpendicular to lid 2 relative pedestals 1.Matrix 10 is provided with bed hedgehopping portion 13 towards circuit board (not shown) away from an end corner of extension 11.Bed hedgehopping portion 13 is located on the lower surface (not label) of matrix 10.

Protection member 3 comprises that group is located at the guard member 30 on the pedestal 1 and organizes the partition 31 that is located on the lid 2.Guard member 30 is the platysome of rectangular strip roughly, can organize in the groove 111 of the extension 11 that is located at pedestal 1, is used to reduce the frictional force of cam 4 and pedestal 1, makes things convenient for driving cam 4.It is short "T"-shaped that partition 31 roughly is, and its middle position runs through and is provided with manhole 310, can pass for the corresponding site of cam 4.

Cam 4 comprises that one from top to bottom links to each other and the first rank cylinder 41, the second rank cylinder 42, the 3rd rank cylinder 43 and the quadravalence cylinder 44 of the cylindrical configuration that diameter reduces successively.The end face of the first rank cylinder 41 is concaved with the instrument accepting hole 410 that roughly is in-line, can by instrument (as bottle opener etc.) stretch in the instrument accepting hole 410 and rotation driving cam 4 motions, and then drive lid 2 relative pedestals 1 and move.The perisporium side one of the first rank cylinder 41 protrudes out stop section 411.Stop section 411 is located at the side place of the first rank cylinder 41 along instrument accepting hole 410 place radial direction.The first rank cylinder 41 and the second rank cylinder 42 are coaxial setting, the 3rd rank cylinder 43 and quadravalence cylinder 44 are coaxial setting, and the second rank cylinder 42 and the 3rd rank cylinder 43 are eccentric setting, the i.e. certain distance of axis misalignment of the axis of the first rank cylinder 41 and the second rank cylinder 42 and the 3rd rank cylinder 43 and quadravalence cylinder 44.

Riveted joint sheet 5 roughly is circular structure, and it comprises the circular riveted holes 50 that is positioned at middle position, can be riveted on the quadravalence cylinder 44 of cam 4, is used for cam 4 and pedestal 1 and lid 2 are fixed together.The diameter of the quadravalence cylinder 44 of the diameter of riveted holes 50 and cam 4 is roughly the same.

2 groups of lids are located on the pedestal 1 and can pedestal 1 motions relatively under the driving of cam 4, and it comprises the main part 20 that is used for carries chips module (not shown) and extended by the extension 11 of the corresponding pedestal 1 of main part 20 1 ends and is provided with and a little more than the protuberance 21 of main part 20.Main part 20 is provided with some through holes 201 corresponding with the terminal accommodation holes (not shown) of pedestal 1, can supply the conductive pin of chip module (not shown) to wear and stretched in the terminal accommodation holes (not shown) of pedestal 1 and contact, and then realize electric connection between chip module (not shown) and the electric connector 100 with conducting terminal.The both sides of lid 2 are also extended the lateral surface 12 corresponding side plates 22 that are provided with pedestal 1 respectively downward vertically, and when 2 groups of lids were located at pedestal 1, side plate 22 paralleled with the lateral surface 12 of pedestal 1.The inboard of side plate 22 is provided with the accepting groove 220 of the fixture block 120 of accommodating pedestal 1, and fixture block 120 can slide in accepting groove 220 at the bearing of trend along side plate 22 under the driving of cam 4.The medium position place of lid 2 above side plate 22 also is provided with pick-up slots 23, is convenient to take out chip module (not shown).Protuberance 21 is provided with in the seat 110 corresponding positions, hole with pedestal 1 and covers hole 24.Lid hole 24 is made up of two different semicircles of diameter, is formed with two block walls 25 perpendicular to lid 2 surfaces in the junction of two semicircles.Two block walls 25 can cooperate with the stop section 411 of cam 4, are used to prevent that cam 4 from excessively rotating.The anglec of rotation of stop section 411 between two block walls 25 of described cam is greater than 180 degree, less than 270 degree, can make cam (original position) on being resisted against a block wall 25 all be not easy to become flexible when being resisted against on another block wall 25 (final position), have auto-lock function.

During assembling, at first will protect the guard member of member 3 to be located at for 30 groups on the pedestal 1 that contains plurality of conductive terminals, at this moment, guard member 30 is housed in the groove 111 of pedestal 1.Then partition is located on the lid 2 for 31 groups, and lid is located on the pedestal 1 for 2 groups.At this moment, the fixture block 120 of pedestal 1 is housed in the accepting groove 220 that the side plate 22 of lid 2 forms.At last cam 4 is passed from top to bottom successively the through hole 310 of lid hole 24, partition 31 of lid 2 and pedestal 1 seat hole 110 and with riveted joint sheet 5 riveted joints that are positioned at pedestal 1 below, cam 4 is fixed on pedestal 1 and the lid 2.At this moment, the first rank cylinder 41 of cam 4 is housed in the lid hole 24 of lid 2, and the second rank cylinder 42 is housed in the through hole 310 of partition 31, and the 3rd rank cylinder 43 is housed in the seat hole 110 of pedestal 1, and quadravalence cylinder 44 is riveted with the riveted holes 50 of riveted joint sheet 5.After assembling, electric connector 100 is by the conduction stitch realization of conducting terminal clamping and chip module and the electric connection of chip module.

Electric connector 100 of the present utility model is resisted against on the block wall 25 of lid 2 by the stop section 411 of cam 4, prevent that cam 4 from excessively rotating, and pass through the anglec of rotation A of stop section 411 between two block walls 25 of lid 2 greater than 180 degree, less than 270 degree, make cam 4 all have auto-lock function, can prevent that cam 4 from loosening driving lid 3 relative pedestals 1 motions taking place and damage conducting terminal in original position and place, final position.

The above only is a kind of execution mode of the present utility model, it or not whole or unique execution mode, the variation of any equivalence that those of ordinary skills take technical solutions of the utility model by reading the utility model specification is claim of the present utility model and contains.

Claims

1. electric connector, be used to electrically connect chip module and circuit board, it comprises that the pedestal that contains plurality of conductive terminals, group are located at the cam that lid on the pedestal and group are located between pedestal and the lid and can drive the relative base motion of lid, cam is provided with the stop section, lid is provided with the lid hole of being made up of two different semicircles of diameter, the lid hole is formed with two block walls in two semicircle junctions, it is characterized in that: the anglec of rotation of the stop section of described cam between two block walls of lid is greater than 180 degree, less than 270 degree.

2. electric connector as claimed in claim 1, it is characterized in that: described cam comprises the first rank cylinder, the second rank cylinder, the 3rd rank cylinder and the quadravalence cylinder that one links to each other and diameter reduces successively from top to bottom, the described first rank cylinder and the second rank cylinder are coaxial setting, described the 3rd rank cylinder and quadravalence cylinder are coaxial setting, the axis of the axis of described first and second rank cylinder and the 3rd, quadravalence cylinder certain distance that interlaces.

3. electric connector as claimed in claim 2 is characterized in that: the stop section of described cam is to be extended by a side of the first rank cylinder to be provided with.

4. electric connector as claimed in claim 3, it is characterized in that: described pedestal comprises flat base portion and the extension that is extended setting by base portion one side, described extension middle part is provided with a hole, and described seat both sides, hole are provided with groove along the direction perpendicular to the relative base motion of lid.

5. electric connector as claimed in claim 4, it is characterized in that: described lid comprises main part and is extended by the extension of the corresponding pedestal of an end of main part and is provided with and a little more than the protuberance of main part, the lid hole of described lid is to be located at a protuberance and a corresponding position, hole of stating pedestal.

6. electric connector as claimed in claim 5 is characterized in that: this electric connector also comprises the riveted joint sheet, and described riveted joint sheet is provided with riveted holes, can cooperate with the quadravalence cylinder of described cam, is used for cam set is located at pedestal and lid.

7. electric connector as claimed in claim 6 is characterized in that: this electric connector further comprises the protection member, and the protection member comprises guard member and partition.

8. electric connector as claimed in claim 7 is characterized in that: described guard member is housed in the groove of pedestal, is used to reduce the frictional force between cam and the pedestal.

9. electric connector as claimed in claim 8 is characterized in that: described partition roughly is "T"-shaped, which is provided with manhole, can accommodate the second rank cylinder of cam.

10. electric connector as claimed in claim 9 is characterized in that: the end face of the first rank cylinder of cam is provided with the instrument accepting hole.