CN201075432Y - Electric Connector - Google Patents

Abstract

An electrical connector (100), comprising an insulating body (1) provided with a receiving groove (16) and a conductive terminal (2) accommodated in the receiving groove. The conductive terminal includes first and second curved connection parts (23, 25) bent in opposite directions, arm parts (24) whose two ends are respectively connected to the two curved connection parts, and formed by extending from the free end of the first curved connection part. The retaining portion (22) and the elastic contact arm (26) formed by extending obliquely outward from the free end of the second curved connection portion. The above-mentioned two curved connection parts are both formed by a straight line segment (231, 251) and two circular arc segments (232, 233, 252, 253) located at both ends of the straight line segment. The straight section of the curved connection can effectively disperse stress and prevent terminal deformation.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector used in a mobile phone or a hand-held device to be electrically connected with a battery.

【Background technique】

US Patent No. 6,908,341 discloses a conventional electrical connector, which includes an insulating body and a plurality of conductive terminals accommodated in the insulating body. The conductive terminal includes a contact portion protruding from the opening on one side of the insulating body, a fixing portion fixed on the other side opposite to the opening side of the insulating body, and an S-shaped elastic portion connecting the two. The two bending parts are bent into an S shape to increase its elasticity. However, the two curved parts are arc-shaped, and cracks are likely to occur on the surface of the bent parts during the forming process, and these cracks will cause the curved parts to break when the battery is frequently inserted and pulled out. Moreover, when the battery touches the conductive terminal, the stress generated by the bending part will be concentrated at one point, which further leads to permanent deformation of the terminal, making the electrical connector prone to failure problems such as poor conduction or unreliable contact soon after use.

Therefore, it is necessary to design an electrical connector that can overcome the above defects.

【Content of utility model】

The purpose of the utility model is to provide an electrical connector with a terminal having a bent portion to increase elasticity, and the bent portion of the terminal is not easily cracked or broken.

In order to achieve the above object, the utility model adopts the following technical solutions: an electrical connector, which includes an insulating body provided with a receiving groove and a plurality of conductive terminals accommodated in the receiving groove, the conductive terminals include first and second curved connection parts, The two ends are respectively connected to the arms of the first and second curved connection parts, the holding part extending from the free end of the first curved connection part, and the elastic contact arm formed by extending obliquely outward from the free end of the second curved connection part, And the first and second curved connection parts are bent in opposite directions; wherein, the first and second curved connection parts are both formed by a straight line segment and two arc segments located at two ends of the straight line segment.

Compared with the prior art, the electrical connector of the utility model has the following beneficial effects: the straight section of the curved connection part can effectively disperse stress and prevent terminal deformation.

【Description of drawings】

Fig. 1 is a three-dimensional assembled view of the electrical connector of the present invention.

Fig. 2 is a three-dimensional assembled view from another angle shown in Fig. 1 .

FIG. 3 is an exploded perspective view of the electrical connector shown in FIG. 1 .

Fig. 4 is a perspective view of an electrical connector terminal.

Fig. 5 is a front view of the terminal shown in Fig. 4 .

【Detailed ways】

Referring to FIGS. 1 and 2 , the electrical connector 100 includes an insulating body 1 and a plurality of conductive terminals 2 accommodated in the insulating body 1 .

Please refer to Fig. 2, shown in 3, insulator body 1 is arranged in rectangle, and it is provided with installation surface 11, the top wall 12 that is arranged opposite to installation surface 11, the butt surface 13, the back wall 14 that is arranged opposite to abutment surface 12 and vertical On the two side walls 15 of the installation surface 11 and the docking surface 13, a number of accommodating grooves 16 arranged side by side penetrate the installation surface 11 and the docking surface 13, and form a stopper 161 near the docking surface, and the rear wall 14 is located near the installation surface 11. A groove 141 is opened. The two side walls 15 of the insulating body 1 are respectively provided with a mounting portion 17, and the mounting portion 17 is provided with a holding groove 171. One end of the holding member (not shown) is fixed in the holding groove 171, and the other end is fixed in the electrical connection. The connector 100 is to be installed on the object, thereby fixing the electrical connector 100 on the object.

Please refer to FIGS. 4 and 5 , the conductive terminal 2 is formed by bending a metal sheet, which is accommodated in the receiving groove 16 of the insulating body 1 . The conductive terminal 2 includes a holding portion 22, an arm portion 24 set at a certain angle with the holding portion 22, an elastic contact arm 26 set at a certain angle with the arm portion 24, and a first end that smoothly connects the holding portion 22 with the arm portion 24. The other end of the curved connecting portion 23 and the smooth connecting arm portion 24 is connected to the second curved connecting portion 25 of the elastic contact arm 26, that is, the two ends of the arm portion 24 are respectively smoothly connected to the first and second curved connecting portions 23, 23, 25 , the holding portion 22 is formed by extending from the free end of the first curved connection portion 23 , and the elastic contact arm 26 is formed by extending obliquely outward from the free end of the second curved connection portion 25 . Two pairs of protrusions 221 are provided on both sides of the holding portion 22 to firmly hold the conductive terminal 2 in the insulating body 1 , and a tail portion 21 extending from a free end thereof can be soldered to a circuit board. The elastic contact arm 26 is bent outwards in a direction substantially perpendicular to the holding portion 22 to form a mountain-shaped contact portion 261, the end of which is facing the arm portion 24, and the end is provided with a downwardly bent locking portion 262, the locking portion 262 A pair of protrusions 263 are provided in the lateral direction to prevent the end of the elastic contact arm 26 from being exposed to the insulating body 1 and strengthen the fixing of the conductive terminal 2 .

The first curved connection portion 23 includes a horizontal first straight line segment 231 and first and second circular arc segments 232, 233 bent in the same direction from both ends of the first straight line segment 231, that is, the first circular arc segment 232 is smoothly connected and held. The left end of the arm portion 22 and the first straight segment 231 , and the second arc segment 233 smoothly connects the right end of the first straight segment 231 and the upper end of the arm portion 24 . The structure of the second curved connecting portion 25 is similar to that of the first curved connecting portion 23, and its third and fourth circular arc segments 252, 253 bent in the same direction smoothly connect the lower end of the arm portion 24 and the left end of the second straight segment 251 respectively. And the right end of the second straight line segment 251 and the lower end of the elastic contact arm 26 .

The conductive terminal 2 is assembled from the mounting surface 11 of the insulating body 1, and its holding part 22 is fixed in the slot 142 of the rear wall 14 (shown in FIG. 25. The arm part 24 and the elastic contact arm 26 are accommodated in the receiving groove 16, the contact part 261 protrudes from the mating surface 13 of the insulating body 1, and the protrusion 263 resists the stopper 161 to hold the clamping part 262 in the receiving groove 16 , the tail 21 extends out from the groove 141 (shown in FIG. 2 ) opened in the rear wall 14 .

When the docking element (such as a battery, etc.) presses the contact portion 261, the angle between the elastic contact arm 26 and the arm portion 24 and the angle between the arm portion 24 and the holding portion 22 will all change, so that in the first 1. Stress is generated at the second curved connection parts 23 and 25 . In the prior art, the curved connection part is only provided with a circular arc, and the stress will be concentrated at the center of the circular arc-shaped curved connection part. The force range is small, and it is easy to cause permanent deformation of the terminal. The two curved connecting parts 23, 25 have first and second straight sections 231, 251 respectively, the stress generated by the curved connecting parts acts on the first and second straight sections 231, 251, and the range of stress bearing is increased, which can effectively Distribute the stress, and then achieve the purpose of preventing permanent deformation of the terminal. Moreover, the straight sections 231 and 251 of the curved connection portion can also avoid cracks on the curved surface when the terminal is formed, which can effectively prolong the service life of the product.

The present invention is not limited to the above embodiments. For example, the conductive terminal 2 of the electrical connector 100 can also be formed by smoothly connecting the holding portion 22 and the elastic contact arm 26 by a curved connection portion, which will not be repeated here.

Claims (10)

1. An electrical connector, which includes an insulating body provided with a receiving groove and a conductive terminal accommodated in the receiving groove, the conductive terminal includes a first and a second curved connection portion, and two ends are respectively connected to the first and second curved connection portion The arm part, the holding part extending from the free end of the first curved connection part and the elastic contact arm formed by extending obliquely outward from the free end of the second curved connection part, wherein the first and second curved connection parts are along opposite Directional bending, characterized in that: the first and second curved connecting parts are formed by a straight line segment and two arc segments located at both ends of the straight line segment. 2. The electrical connector as claimed in claim 1, wherein the conductive terminal is formed by bending a metal sheet. 3. The electrical connector according to claim 1 or 2, wherein the two arc segments are formed by bending in the same direction from both ends of the straight segment. 4. The electrical connector as claimed in claim 1 or 2, wherein a protrusion is provided on the holding portion, and the protrusion is used for holding the conductive terminal on the insulating body. 5. The electrical connector as claimed in claim 1, wherein the insulating body has a mounting surface and a mating surface, and the receiving groove penetrates the mounting surface and the mating surface. 6. The electrical connector according to claim 5, characterized in that: the receiving groove is provided with a stopper close to the mating surface, and the elastic contact arm is provided with a protrusion transversely at the free end, and the elastic contact arm is accommodated in the receiving groove Inside and the bump resists the stopper. 7. An electrical connector, which includes an insulating body provided with a receiving groove and a conductive terminal accommodated in the receiving groove, the conductive terminal includes a holding portion fixed to the insulating body, an elastic contact arm arranged at an angle with the holding portion, and a connection At least one curved connecting portion between the holding portion and the elastic contact arm is characterized in that the curved connecting portion includes a straight line segment and two circular arc segments respectively connected to both ends of the straight line segment and bent in the same direction, one of which is directly Or it is indirectly connected to the holding part, and another arc segment is directly or indirectly connected to the elastic contact arm. 8. The electrical connector as claimed in claim 7, wherein the conductive terminal is formed by bending a metal sheet. 9. The electrical connector as claimed in claim 8, wherein the conductive terminal comprises an arm portion located between the holding portion and the elastic contact arm and forming an angle with the holding portion. 10. The electrical connector according to claim 9, wherein the conductive terminal comprises a first curved connection part and a second curved connection part, the first curved connection part connects the holding part and the arm part, and the second curved connection part The part connects the arm part and the elastic contact arm.

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