CN2862383Y

CN2862383Y - Electric connector

Info

Publication number: CN2862383Y
Application number: CNU2005201341419U
Authority: CN
Inventors: 苏天杰; 吴逸枫; 许修源
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: 2005-11-30
Filing date: 2005-11-30
Publication date: 2007-01-24
Anticipated expiration: 2015-11-30

Abstract

The utility model relates to an electrical connector for electrically connecting a flexible circuit board to a main circuit board. The electrical connector includes an insulating main body provided with several terminal holding grooves, and a conductive terminal clamped in the holding grooves with inner sidewall. The conductive terminal is provided with, from bottom to top, a welding portion, a support arm and an elastic arm, which have a common first and second outer sidewalls, and at least one outer sidewall is spaced from the inner sidewall of the holding groove. The free end of the elastic arm is provided with a contact portion connected with the flexible circuit board, and the conductive terminal is provided with at least one bump portion protruding out of the outer sidewall spaced from the inner sidewall. The provisions of the bump portion and the space between the conductive terminal and the inner sidewall of the holding groove lowers the sway of the conductive terminal under pressure, thereby ensuring stable and reliable electrical connection between the electrical connector and the flexible circuit board.

Description

Electric connector

[technical field]

The relevant a kind of electric connector of the utility model is used for flexible PCB (FPC) is connected to main circuit board.

[background technology]

The existing a kind of electric connector of flexible PCB (FPC) to main circuit board that be used to connect, it comprises insulating body, the rotation winding commentaries on classics pressure body on insulating body, and the conducting terminal that is contained in insulating body.The flexible PCB bottom surface that plugs with this electric connector adds the number of metal thin slice, and these sheet metals connect with zero insertion force or low insertion force mode mutually with corresponding conducting terminal.Change and press body between enable possition and make position, to rotate, when commentaries on classics presses body to be positioned at the enable possition, flexible PCB can be inserted in the corresponding receiving space of insulating body, when commentaries on classics presses body to turn to make position, change and press body closely to compress flexible PCB, make that the conducting terminal in flexible PCB and the insulating body is reached reliable and stable being electrically conducted.Offer some accepting grooves on the insulating body, the width of these accepting grooves generally is limited with minimum value, be lower than this minimum widith and then be difficult to moulding, the conducting terminal that is contained in these accepting grooves is consistency of thickness on the whole, and the thickness of conducting terminal is slightly less than the width of accepting groove, after conducting terminal is inserted in insulating body, only leaves minim gap between the sidewall within its outermost sidewall is corresponding with accepting groove, in order to avoid behind the conducting terminal pressurized in accepting groove shaking amplitude excessive, and then influence its conductive stability.

Yet, when this electric connector is had the high frequency demand on function, tend to reduce terminal thickness to increase distance between the terminal, with effective reduction electric capacity.Reached at the accepting groove on the insulating body under the prerequisite of minimum widith, the thickness that reduces terminal then can cause the outermost sidewall of conducting terminal and the gap between the corresponding madial wall of accepting groove to increase, its shaking amplitude will increase when the terminal pressurized, and then might skid off corresponding with it sheet metal on the flexible PCB, thereby cause conducting terminal to connect with flexible PCB.

Therefore, be necessary to provide a kind of improved electric connector, 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, can realize with the flexible PCB that is connected between more reliable and more stable being electrically conducted.

For solving above-mentioned technical problem, a kind of electric connector of the present utility model, be used to electrically connect flexible PCB to main circuit board, the conducting terminal that it comprises the insulating body that is provided with the plurality of terminals accepting groove and is arranged in the insulating body accepting groove, terminal containing slot is provided with madial wall, conducting terminal is respectively equipped with weld part from bottom to top, support arm and elastic arm, the three has the first common lateral wall and second lateral wall, and leave the gap between at least one lateral wall and the accepting groove madial wall, the free terminal of elastic arm is provided with the contact site that connects mutually with flexible PCB, wherein, conducting terminal is provided with at least one protuberance, and it protrudes out the lateral wall that has the gap between above-mentioned and the accepting groove madial wall.

Compared with prior art, electric connector of the present utility model has following advantage: the width at the accepting groove of insulating body has reached under the prerequisite of irreducible minimum definite value, the thickness that reduces terminal promptly reduces first lateral wall of terminal and the distance between second lateral wall, then after conducting terminal is contained in the accepting groove of insulating body, gap between at least one side's of terminal the lateral wall and the madial wall of corresponding accepting groove increases, because terminal has additional protuberance, make and only stay minim gap between conducting terminal and the accepting groove madial wall, reduce the shaking amplitude behind the conducting terminal pressurized, the contact site that prevents conducting terminal skids off the sheet metal on the flexible PCB, thereby guarantees reliable and stable being electrically conducted between electric connector and the flexible PCB.

[description of drawings]

Fig. 1 is the three-dimensional exploded view of the utility model electric connector.

Fig. 2 is the three-dimensional combination figure of electric connector shown in Figure 1.

Fig. 3 is the stereogram of the conducting terminal of electric connector shown in Figure 1.

Fig. 4 is the insulating body of electric connector shown in Figure 1 and the front view after the conducting terminal combination.

Fig. 5 is the enlarged drawing of Fig. 4 centre circle A.

[embodiment]

Please refer to Fig. 1 and Fig. 2, the utility model electric connector 1 is in order to electrically connect flexible PCB (not shown) to main circuit board (not shown), body 30 is pressed in it commentaries on classics that comprises that insulating body 10, some conducting terminals 20 that is contained in insulating body 10, rotation are connected to insulating body 10, and the gland 40 that is fastened on insulating body 10.

Insulating body 10 is the lengthwise shape, it is provided with first surface 101 and the second surface 102 parallel with first surface 101, and the first side wall 103 and second sidewall 104 vertical with first surface 101, offer holding slot 106 and holding groove 105 downwards from first surface 101, both all non-second surfaces 102 that are through to, wherein the degree of depth of holding slot 106 is less.Offer some first draw-in grooves 107 to the first side wall 103 1 sides in a lateral direction in holding slot 106, offer some second draw-in grooves 108 to second sidewall, 104 1 sides.Holding groove 105 has bottom surface 1055, first medial surface 1053 and two perpendicular relative second medial surfaces 1054, protrude out some blocked blocks 109 from first medial surface 1053 to second sidewall 104, be provided with between itself and the holding groove bottom surface 1055 at interval, second draw-in groove 108 is to be arranged on the blocked block 109, is arranged with pivot connected slot 110 and the support slot 112 that links to each other with pivot connected slot 110 from second medial surface 1054.Offer two row's terminal containing slots 115 from second surface 102 inside symmetries in addition.

Change the substrate 301 of pressing body 30 that longitudinal is set, substrate 301 vertical both ends of the surface protrude out a cylindrical moving block 302 and a fixture block 305 respectively, evenly offer some hoppers 306 of escaping on substrate 301, this is escaped hopper 306 and presses on body 30 and the insulating body 10 blocked block 109 to interfere to be provided with for being avoided changeing.

In the middle of the gland 40 lengthwise panel-shaped base body 401 is set, in matrix 401 in a lateral direction, a side is provided with some first claws 402, and an other side is provided with some second claws 405.Matrix 401 vertical bending two ends are respectively equipped with two welding endss 408 downwards, and it is perpendicular to matrix 401.This welding ends 408 is soldered on the main circuit board, improves the stability that whole electric connector 1 combines with main circuit board with this.

Please in conjunction with consulting Fig. 3, conducting terminal 20 is provided with weld part 201, support arm 202 and elastic arm 205 from bottom to top respectively, form first U-lag 209 between weld part 201 and the support arm 202, the opening direction that forms second U-lag, 210, the first U-lags 209 and second U-lag 210 between support arm 202 and the elastic arm 205 is opposite.Weld part 201, support arm 202 and elastic arm 205 have the first common lateral wall 207 and second lateral wall 208.The free terminal of elastic arm 205 is convexly equipped with the contact site 2054 that is connected with flexible PCB, and the end face of this contact site 2054 is a plane.In the present embodiment, because after conducting terminal 20 inserts accepting groove 115, wherein a lateral wall is the madial wall of first lateral wall 207 near accepting groove, leave big gap between its second lateral wall 208 and the corresponding madial wall of accepting groove, therefore, be provided with first protuberance 211 and second protuberance 212 from first lateral wall 207 to second lateral wall 208 in support arm 202 centre positions, this two protuberance 211, the 212nd, two parts of same annulus, lay respectively at the above and below of support arm 202, all protrude out second lateral wall 208, this two protuberance 211,212 is provided with the outer face 2116 parallel and in the same plane with second lateral wall 208.Support arm 202 ends are provided with a clamping part 2023, and the corresponding site of this clamping part 2023 in insulating body accepting groove 115 fastens.Weld part 201 is used to be soldered to main circuit board.In fact, in the present embodiment, if only establish a protuberance, first protuberance 211 is set or second protuberance 212 also can reach identical technique effect.In addition, after if conducting terminal 20 inserts accepting groove 115, its first lateral wall 207 and second lateral wall 208 all and between the accepting groove 115 corresponding madial walls leave the gap, then the 3rd protuberance and the 4th protuberance can be set in the support arm centre position, two protuberances are made as the part on the different annular respectively, and lay respectively at the above and below of support arm 202, and one of them stretches out first lateral wall 207, another protuberance stretches out second lateral wall 208, so reaches required technique effect.

When making up electric connector 1 of the present utility model, earlier conducting terminal 20 is arranged in each accepting groove 115 of insulating body 10, conducting terminal 20 in two row's accepting grooves 115 is symmetrical arranged, elastic arm 205 parts of conducting terminal 20 are stretched out the bottom surface 1055 of insulating body holding groove 105, the contact site 2054 of elastic arm 205 free terminals promptly is positioned on the holding groove bottom surface 1055, and the weld part 201 of conducting terminal stretches out accepting groove 115 being welded on the circuit board.Then, press body 30 to insert in the holding groove 105 of insulating body with changeing from the direction that is parallel to insulating body first surface 101, the lower surface of blocked block 109 is pressed on to change and presses on the body 30 corresponding surfaces, change and press the moving block 302 at body 30 two ends to snap in the pivot connected slot 110 of insulating body 10,305 of fixture blocks are contained in the corresponding support slot 112, change with this and press body 30 to be connected on the insulating body 10 and be that center of rotation is rotated with the axle center of moving block 302.At last, button is held gland 40 on insulating body 10, and the matrix 401 of gland 40 falls in the holding slot 106 of insulating body 10, and first claw 402 stretches into 405 of first draw-in groove, 107, the second claws and stretches into second draw-in groove 108, locatees gland 40 on insulating body 10 with this.

After the combination, change and press body 30 can upwards turn to the enable possition from initial horizontal level, can level insert flexible PCB in the space of 1055 tops, holding groove bottom surface this moment, this moment, flexible PCB contacted with conducting terminal 20, press body 30 to transfer back to initial position and compress flexible PCB changeing then, deviate to prevent flexible PCB.In this process, when flexible PCB was pushed conducting terminal 20, strains took place in the elastic arm 205 of conducting terminal 20, and conducting terminal 20 can produce and rock, and its contact site 2054 slides along the surface of corresponding metal thin slice on the flexible PCB.Referring again to Fig. 4 and Fig. 5, after conducting terminal 20 inserts insulating body 10, its first lateral wall 207 is near accepting groove 115 corresponding madial walls, distance between the corresponding madial wall of its second lateral wall 208 and accepting groove 115 is d1, after conducting terminal 20 is set up first protuberance 211 and second protuberance 212, only stay minim gap d2 between the madial wall of outer face 2116 and accepting groove 115, reduced shaking amplitude behind conducting terminal 20 pressurizeds with this, avoid the contact site 2054 of terminal 20 to skid off corresponding metal thin slice on the flexible PCB, thereby guarantee reliable and stable being electrically conducted between electric connector 1 and the flexible PCB.

Claims

1. electric connector, be used to electrically connect flexible PCB to main circuit board, the conducting terminal that it comprises the insulating body that is provided with the plurality of terminals accepting groove and is arranged in the insulating body accepting groove, terminal containing slot is provided with madial wall, conducting terminal is respectively equipped with weld part from bottom to top, support arm and elastic arm, the three has the first common lateral wall and second lateral wall, and leave the gap between at least one lateral wall and the accepting groove madial wall, the free terminal of elastic arm is provided with the contact site that connects mutually with flexible PCB, it is characterized in that: conducting terminal is provided with at least one protuberance, and it protrudes out the lateral wall that has the gap between above-mentioned and the accepting groove madial wall.

2. electric connector as claimed in claim 1 is characterized in that: first lateral wall of conducting terminal leaves the gap near the madial wall of accepting groove between the corresponding madial wall of second lateral wall and accepting groove.

3. electric connector as claimed in claim 2 is characterized in that: described protuberance is first protuberance and second protuberance of being located on the support arm, lays respectively at the above and below of support arm, all protrudes out second lateral wall.

4. electric connector as claimed in claim 3 is characterized in that: first protuberance is provided with the outer face parallel and in the same plane with second lateral wall with second protuberance.

5. electric connector as claimed in claim 1 is characterized in that: first lateral wall of conducting terminal and second lateral wall all and between the corresponding madial wall of accepting groove leave the gap.

6. electric connector as claimed in claim 5, it is characterized in that: described protuberance is the 3rd protuberance and the 4th protuberance of being located on the support arm, lay respectively at the above and below of support arm, one of them stretches out first lateral wall of terminal, and another stretches out second lateral wall of terminal.

7. electric connector as claimed in claim 1 is characterized in that: form first U-lag between the weld part of conducting terminal and the support arm, form second U-lag between support arm and the elastic arm, the opening direction of first U-lag and second U-lag is opposite.

8. as any described electric connector in the claim 1 to 7, it is characterized in that: this electric connector also comprises the commentaries on classics pressure body of a rotation winding on insulating body, change the substrate of pressing body that one longitudinal is set, the vertical both ends of the surface of substrate protrude out a cylindrical moving block respectively.

9. electric connector as claimed in claim 8 is characterized in that: this electric connector comprises that also one is fastened on the gland of insulating body.

10. electric connector as claimed in claim 9 is characterized in that: in the middle of the gland lengthwise panel-shaped base body is set, in matrix in a lateral direction, a side is provided with some first claws, and an other side is provided with some second claws.